loncom/lonnet/perl/lonnet.pm - view

File: [LON-CAPA] / loncom / lonnet / perl / lonnet.pm
Revision 1.1522: download - view: text, annotated - select for diffs
Thu Dec 28 18:14:09 2023 UTC (6 months, 2 weeks ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Internal name for conditional portfolio sharing for specific IP addresses
  ranges when set by a user is now userip, to distinguish from those set
  for externalresponse (inrenal name: ip).
- Portfolio shareability setting in domain defaults (by affiliation), with
  possible override for an individual user will apply to portfolio file
  requests to a LON-CAPA node running 2.11, when the file owner's homeserver
  is 2.12 (or later).

1: # The LearningOnline Network 2: # TCP networking package 3: # 4: # $Id: lonnet.pm,v 1.1522 2023/12/28 18:14:09 raeburn Exp $ 5: # 6: # Copyright Michigan State University Board of Trustees 7: # 8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 9: # 10: # LON-CAPA is free software; you can redistribute it and/or modify 11: # it under the terms of the GNU General Public License as published by 12: # the Free Software Foundation; either version 2 of the License, or 13: # (at your option) any later version. 14: # 15: # LON-CAPA is distributed in the hope that it will be useful, 16: # but WITHOUT ANY WARRANTY; without even the implied warranty of 17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18: # GNU General Public License for more details. 19: # 20: # You should have received a copy of the GNU General Public License 21: # along with LON-CAPA; if not, write to the Free Software 22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23: # 24: # /home/httpd/html/adm/gpl.txt 25: # 26: # http://www.lon-capa.org/ 27: # 28: ### 29: 30: =pod 31: 32: =head1 NAME 33: 34: Apache::lonnet.pm 35: 36: =head1 SYNOPSIS 37: 38: This file is an interface to the lonc processes of 39: the LON-CAPA network as well as set of elaborated functions for handling information 40: necessary for navigating through a given cluster of LON-CAPA machines within a 41: domain. There are over 40 specialized functions in this module which handle the 42: reading and transmission of metadata, user information (ids, names, environments, roles, 43: logs), file information (storage, reading, directories, extensions, replication, embedded 44: styles and descriptors), educational resources (course descriptions, section names and 45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to 46: and from more descriptive phrases or explanations. 47: 48: This is part of the LearningOnline Network with CAPA project 49: described at http://www.lon-capa.org. 50: 51: =head1 Package Variables 52: 53: These are largely undocumented, so if you decipher one please note it here. 54: 55: =over 4 56: 57: =item $processmarker 58: 59: Contains the time this process was started and this servers host id. 60: 61: =item $dumpcount 62: 63: Counts the number of times a message log flush has been attempted (regardless 64: of success) by this process. Used as part of the filename when messages are 65: delayed. 66: 67: =back 68: 69: =cut 70: 71: package Apache::lonnet; 72: 73: use strict; 74: use HTTP::Date; 75: use Image::Magick; 76: use CGI::Cookie; 77: 78: use Encode; 79: 80: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex 81: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease 82: %managerstab $passwdmin); 83: 84: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash, 85: %userrolehash, $processmarker, $dumpcount, %coursedombuf, 86: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf, 87: %courseownerbuf, %coursetypebuf,$locknum); 88: 89: use IO::Socket; 90: use GDBM_File; 91: use HTML::LCParser; 92: use Fcntl qw(:flock); 93: use Storable qw(thaw nfreeze); 94: use Time::HiRes qw( sleep gettimeofday tv_interval ); 95: use Cache::Memcached; 96: use Digest::MD5; 97: use Math::Random; 98: use File::MMagic; 99: use Net::CIDR; 100: use Sys::Hostname::FQDN(); 101: use LONCAPA qw(:DEFAULT :match); 102: use LONCAPA::Configuration; 103: use LONCAPA::lonmetadata; 104: use LONCAPA::Lond; 105: use LONCAPA::LWPReq; 106: use LONCAPA::transliterate; 107: 108: use File::Copy; 109: 110: my $readit; 111: my $max_connection_retries = 20; # Or some such value. 112: 113: require Exporter; 114: 115: our @ISA = qw (Exporter); 116: our @EXPORT = qw(%env); 117: 118: 119: # ------------------------------------ Logging (parameters, docs, slots, roles) 120: { 121: my $logid; 122: sub write_log { 123: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_; 124: if ($context eq 'course') { 125: if (($cnum eq '') || ($cdom eq '')) { 126: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 127: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 128: } 129: } 130: $logid ++; 131: my $now = time(); 132: my $id=$now.'00000'.$$.'00000'.$logid; 133: my $ip = &get_requestor_ip(); 134: my $logentry = { 135: $id => { 136: 'exe_uname' => $env{'user.name'}, 137: 'exe_udom' => $env{'user.domain'}, 138: 'exe_time' => $now, 139: 'exe_ip' => $ip, 140: 'delflag' => $delflag, 141: 'logentry' => $storehash, 142: 'uname' => $uname, 143: 'udom' => $udom, 144: } 145: }; 146: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum); 147: } 148: } 149: 150: sub logtouch { 151: my $execdir=$perlvar{'lonDaemons'}; 152: unless (-e "$execdir/logs/lonnet.log") { 153: open(my $fh,">>","$execdir/logs/lonnet.log"); 154: close $fh; 155: } 156: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3]; 157: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log'); 158: } 159: 160: sub logthis { 161: my $message=shift; 162: my $execdir=$perlvar{'lonDaemons'}; 163: my $now=time; 164: my $local=localtime($now); 165: if (open(my $fh,">>","$execdir/logs/lonnet.log")) { 166: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string. 167: print $fh $logstring; 168: close($fh); 169: } 170: return 1; 171: } 172: 173: sub logperm { 174: my $message=shift; 175: my $execdir=$perlvar{'lonDaemons'}; 176: my $now=time; 177: my $local=localtime($now); 178: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) { 179: print $fh "$now:$message:$local\n"; 180: close($fh); 181: } 182: return 1; 183: } 184: 185: sub create_connection { 186: my ($hostname,$lonid) = @_; 187: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'}, 188: Type => SOCK_STREAM, 189: Timeout => 10); 190: return 0 if (!$client); 191: print $client (join(':',$hostname,$lonid,&machine_ids($hostname),$loncaparevs{$lonid})."\n"); 192: my $result = <$client>; 193: chomp($result); 194: return 1 if ($result eq 'done'); 195: return 0; 196: } 197: 198: sub get_server_timezone { 199: my ($cnum,$cdom) = @_; 200: my $home=&homeserver($cnum,$cdom); 201: if ($home ne 'no_host') { 202: my $cachetime = 24*3600; 203: my ($timezone,$cached)=&is_cached_new('servertimezone',$home); 204: if (defined($cached)) { 205: return $timezone; 206: } else { 207: my $timezone = &reply('servertimezone',$home); 208: return &do_cache_new('servertimezone',$home,$timezone,$cachetime); 209: } 210: } 211: } 212: 213: sub get_server_distarch { 214: my ($lonhost,$ignore_cache) = @_; 215: if (defined($lonhost)) { 216: if (!defined(&hostname($lonhost))) { 217: return; 218: } 219: my $cachetime = 12*3600; 220: if (!$ignore_cache) { 221: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost); 222: if (defined($cached)) { 223: return $distarch; 224: } 225: } 226: my $rep = &reply('serverdistarch',$lonhost); 227: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || 228: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || 229: $rep eq '') { 230: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime); 231: } 232: } 233: return; 234: } 235: 236: sub get_servercerts_info { 237: my ($lonhost,$hostname,$context) = @_; 238: return if ($lonhost eq ''); 239: if ($hostname eq '') { 240: $hostname = &hostname($lonhost); 241: } 242: return if ($hostname eq ''); 243: my ($rep,$uselocal); 244: if ($context eq 'install') { 245: $uselocal = 1; 246: } elsif (grep { $_ eq $lonhost } &current_machine_ids()) { 247: $uselocal = 1; 248: } 249: if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) { 250: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; 251: if ($distro eq '') { 252: $uselocal = 0; 253: } elsif ($distro =~ /^(?:centos|redhat|scientific)(\d+)$/) { 254: if ($1 < 6) { 255: $uselocal = 0; 256: } 257: } elsif ($distro =~ /^(?:sles)(\d+)$/) { 258: if ($1 < 12) { 259: $uselocal = 0; 260: } 261: } 262: } 263: if ($uselocal) { 264: $rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname); 265: } else { 266: $rep=&reply('servercerts',$lonhost); 267: } 268: my ($result,%returnhash); 269: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 270: ($rep eq 'unknown_cmd')) { 271: $result = $rep; 272: } else { 273: $result = 'ok'; 274: my @pairs=split(/\&/,$rep); 275: foreach my $item (@pairs) { 276: my ($key,$value)=split(/=/,$item,2); 277: my $what = &unescape($key); 278: $returnhash{$what}=&thaw_unescape($value); 279: } 280: } 281: return ($result,\%returnhash); 282: } 283: 284: sub get_server_loncaparev { 285: my ($dom,$lonhost,$ignore_cache,$caller) = @_; 286: if (defined($lonhost)) { 287: if (!defined(&hostname($lonhost))) { 288: undef($lonhost); 289: } 290: } 291: if (!defined($lonhost)) { 292: if (defined(&domain($dom,'primary'))) { 293: $lonhost=&domain($dom,'primary'); 294: if ($lonhost eq 'no_host') { 295: undef($lonhost); 296: } 297: } 298: } 299: if (defined($lonhost)) { 300: my $cachetime = 12*3600; 301: if (!$ignore_cache) { 302: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost); 303: if (defined($cached)) { 304: return $loncaparev; 305: } 306: } 307: my ($answer,$loncaparev); 308: my @ids=&current_machine_ids(); 309: if (grep(/^\Q$lonhost\E$/,@ids)) { 310: $answer = $perlvar{'lonVersion'}; 311: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { 312: $loncaparev = $1; 313: } 314: } else { 315: $answer = &reply('serverloncaparev',$lonhost); 316: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) { 317: if ($caller eq 'loncron') { 318: my $hostname = &hostname($lonhost); 319: my $protocol = $protocol{$lonhost}; 320: $protocol = 'http' if ($protocol ne 'https'); 321: my $url = $protocol.'://'.$hostname.'/adm/about.html'; 322: my $request=new HTTP::Request('GET',$url); 323: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1); 324: unless ($response->is_error()) { 325: my $content = $response->content; 326: if ($content =~ /VERSION\:\s*([\w.\-]+)<\/p>/) { 327: $loncaparev = $1; 328: } 329: } 330: } else { 331: $loncaparev = $loncaparevs{$lonhost}; 332: } 333: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { 334: $loncaparev = $1; 335: } 336: } 337: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime); 338: } 339: } 340: 341: sub get_server_homeID { 342: my ($hostname,$ignore_cache,$caller) = @_; 343: unless ($ignore_cache) { 344: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname); 345: if (defined($cached)) { 346: return $serverhomeID; 347: } 348: } 349: my $cachetime = 12*3600; 350: my $serverhomeID; 351: if ($caller eq 'loncron') { 352: my @machine_ids = &machine_ids($hostname); 353: foreach my $id (@machine_ids) { 354: my $response = &reply('serverhomeID',$id); 355: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) { 356: $serverhomeID = $response; 357: last; 358: } 359: } 360: if ($serverhomeID eq '') { 361: $serverhomeID = $machine_ids[-1]; 362: } 363: } else { 364: $serverhomeID = $serverhomeIDs{$hostname}; 365: } 366: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime); 367: } 368: 369: sub get_remote_globals { 370: my ($lonhost,$whathash,$ignore_cache) = @_; 371: my ($result,%returnhash,%whatneeded); 372: if (ref($whathash) eq 'HASH') { 373: foreach my $what (sort(keys(%{$whathash}))) { 374: my $hashid = $lonhost.'-'.$what; 375: my ($response,$cached); 376: unless ($ignore_cache) { 377: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid); 378: } 379: if (defined($cached)) { 380: $returnhash{$what} = $response; 381: } else { 382: $whatneeded{$what} = 1; 383: } 384: } 385: if (keys(%whatneeded) == 0) { 386: $result = 'ok'; 387: } else { 388: my $requested = &freeze_escape(\%whatneeded); 389: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost); 390: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 391: ($rep eq 'unknown_cmd')) { 392: $result = $rep; 393: } else { 394: $result = 'ok'; 395: my @pairs=split(/\&/,$rep); 396: foreach my $item (@pairs) { 397: my ($key,$value)=split(/=/,$item,2); 398: my $what = &unescape($key); 399: my $hashid = $lonhost.'-'.$what; 400: $returnhash{$what}=&thaw_unescape($value); 401: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600); 402: } 403: } 404: } 405: } 406: return ($result,\%returnhash); 407: } 408: 409: sub remote_devalidate_cache { 410: my ($lonhost,$cachekeys) = @_; 411: my $items; 412: return unless (ref($cachekeys) eq 'ARRAY'); 413: my $cachestr = join('&',@{$cachekeys}); 414: my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost); 415: return $response; 416: } 417: 418: sub sign_lti { 419: my ($cdom,$cnum,$crsdef,$type,$context,$url,$ltinum,$keynum,$paramsref,$inforef) = @_; 420: my $chome; 421: if (&domain($cdom) ne '') { 422: if ($crsdef) { 423: $chome = &homeserver($cnum,$cdom); 424: } else { 425: $chome = &domain($cdom,'primary'); 426: } 427: } 428: if ($cdom && $chome && ($chome ne 'no_host')) { 429: if ((ref($paramsref) eq 'HASH') && 430: (ref($inforef) eq 'HASH')) { 431: my $rep; 432: if (grep { $_ eq $chome } &current_machine_ids()) { 433: # domain information is hosted on this machine 434: $rep = 435: &LONCAPA::Lond::sign_lti_payload($cdom,$cnum,$crsdef,$type, 436: $context,$url,$ltinum,$keynum, 437: $perlvar{'lonVersion'}, 438: $paramsref,$inforef); 439: if (ref($rep) eq 'HASH') { 440: return ('ok',$rep); 441: } 442: } else { 443: my ($escurl,$params,$info); 444: $escurl = &escape($url); 445: if (ref($paramsref) eq 'HASH') { 446: $params = &freeze_escape($paramsref); 447: } 448: if (ref($inforef) eq 'HASH') { 449: $info = &freeze_escape($inforef); 450: } 451: $rep=&reply("encrypt:signlti:$cdom:$cnum:$crsdef:$type:$context:$escurl:$ltinum:$keynum:$params:$info",$chome); 452: } 453: if (($rep eq '') || ($rep =~ /^con_lost|error|no_such_host|unknown_cmd/i)) { 454: return (); 455: } elsif (($inforef->{'respfmt'} eq 'to_post_body') || 456: ($inforef->{'respfmt'} eq 'to_authorization_header')) { 457: return ('ok',$rep); 458: } else { 459: my %returnhash; 460: foreach my $item (split(/\&/,$rep)) { 461: my ($name,$value)=split(/\=/,$item); 462: $returnhash{&unescape($name)}=&thaw_unescape($value); 463: } 464: return('ok',\%returnhash); 465: } 466: } else { 467: return (); 468: } 469: } else { 470: return (); 471: &logthis("sign_lti failed - no homeserver and/or domain ($cdom) ($chome)"); 472: } 473: } 474: 475: # -------------------------------------------------- Non-critical communication 476: sub subreply { 477: my ($cmd,$server)=@_; 478: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server); 479: # 480: # With loncnew process trimming, there's a timing hole between lonc server 481: # process exit and the master server picking up the listen on the AF_UNIX 482: # socket. In that time interval, a lock file will exist: 483: 484: my $lockfile=$peerfile.".lock"; 485: while (-e $lockfile) { # Need to wait for the lockfile to disappear. 486: sleep(0.1); 487: } 488: # At this point, either a loncnew parent is listening or an old lonc 489: # or loncnew child is listening so we can connect or everything's dead. 490: # 491: # We'll give the connection a few tries before abandoning it. If 492: # connection is not possible, we'll con_lost back to the client. 493: # 494: my $client; 495: for (my $retries = 0; $retries < $max_connection_retries; $retries++) { 496: $client=IO::Socket::UNIX->new(Peer =>"$peerfile", 497: Type => SOCK_STREAM, 498: Timeout => 10); 499: if ($client) { 500: last; # Connected! 501: } else { 502: &create_connection(&hostname($server),$server); 503: } 504: sleep(0.1); # Try again later if failed connection. 505: } 506: my $answer; 507: if ($client) { 508: print $client "sethost:$server:$cmd\n"; 509: $answer=<$client>; 510: if (!$answer) { $answer="con_lost"; } 511: chomp($answer); 512: } else { 513: $answer = 'con_lost'; # Failed connection. 514: } 515: return $answer; 516: } 517: 518: sub reply { 519: my ($cmd,$server)=@_; 520: unless (defined(&hostname($server))) { return 'no_such_host'; } 521: my $answer=subreply($cmd,$server); 522: if (($answer=~/^refused/) || ($answer=~/^rejected/)) { 523: my $logged = $cmd; 524: if ($cmd =~ /^encrypt:([^:]+):/) { 525: my $subcmd = $1; 526: if (($subcmd eq 'auth') || ($subcmd eq 'passwd') || 527: ($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || 528: ($subcmd eq 'putdom') || ($subcmd eq 'autoexportgrades') || 529: ($subcmd eq 'put')) { 530: (undef,undef,my @rest) = split(/:/,$cmd); 531: if (($subcmd eq 'auth') || ($subcmd eq 'putdom')) { 532: splice(@rest,2,1,'Hidden'); 533: } elsif ($subcmd eq 'passwd') { 534: splice(@rest,2,2,('Hidden','Hidden')); 535: } elsif (($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || 536: ($subcmd eq 'autoexportgrades') || ($subcmd eq 'put')) { 537: splice(@rest,3,1,'Hidden'); 538: } 539: $logged = join(':',('encrypt:'.$subcmd,@rest)); 540: } 541: } 542: &logthis("WARNING:". 543: " $logged to $server returned $answer"); 544: } 545: return $answer; 546: } 547: 548: # ----------------------------------------------------------- Send USR1 to lonc 549: 550: sub reconlonc { 551: my ($lonid) = @_; 552: if ($lonid) { 553: my $hostname = &hostname($lonid); 554: my $peerfile="$perlvar{'lonSockDir'}/$hostname"; 555: if ($hostname && -e $peerfile) { 556: &logthis("Trying to reconnect lonc for $lonid ($hostname)"); 557: my $client=IO::Socket::UNIX->new(Peer => $peerfile, 558: Type => SOCK_STREAM, 559: Timeout => 10); 560: if ($client) { 561: print $client ("reset_retries\n"); 562: my $answer=<$client>; 563: #reset just this one. 564: } 565: } 566: return; 567: } 568: 569: &logthis("Trying to reconnect lonc"); 570: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; 571: if (open(my $fh,"<",$loncfile)) { 572: my $loncpid=<$fh>; 573: chomp($loncpid); 574: if (kill 0 => $loncpid) { 575: &logthis("lonc at pid $loncpid responding, sending USR1"); 576: kill USR1 => $loncpid; 577: sleep 1; 578: } else { 579: &logthis( 580: "WARNING:". 581: " lonc at pid $loncpid not responding, giving up"); 582: } 583: } else { 584: &logthis('WARNING: lonc not running, giving up'); 585: } 586: } 587: 588: # ------------------------------------------------------ Critical communication 589: 590: sub critical { 591: my ($cmd,$server)=@_; 592: unless (&hostname($server)) { 593: &logthis("WARNING:". 594: " Critical message to unknown server ($server)"); 595: return 'no_such_host'; 596: } 597: my $answer=reply($cmd,$server); 598: if ($answer eq 'con_lost') { 599: &reconlonc($server); 600: my $answer=reply($cmd,$server); 601: if ($answer eq 'con_lost') { 602: my $now=time; 603: my $middlename=$cmd; 604: $middlename=substr($middlename,0,16); 605: $middlename=~s/\W//g; 606: my $dfilename= 607: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server"; 608: $dumpcount++; 609: { 610: my $dfh; 611: if (open($dfh,">",$dfilename)) { 612: print $dfh "$cmd\n"; 613: close($dfh); 614: } 615: } 616: sleep 1; 617: my $wcmd=''; 618: { 619: my $dfh; 620: if (open($dfh,"<",$dfilename)) { 621: $wcmd=<$dfh>; 622: close($dfh); 623: } 624: } 625: chomp($wcmd); 626: if ($wcmd eq $cmd) { 627: &logthis("WARNING: ". 628: "Connection buffer $dfilename: $cmd"); 629: &logperm("D:$server:$cmd"); 630: return 'con_delayed'; 631: } else { 632: &logthis("CRITICAL:" 633: ." Critical connection failed: $server $cmd"); 634: &logperm("F:$server:$cmd"); 635: return 'con_failed'; 636: } 637: } 638: } 639: return $answer; 640: } 641: 642: # ------------------------------------------- check if return value is an error 643: 644: sub error { 645: my ($result) = @_; 646: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) { 647: if ($2 == 2) { return undef; } 648: return $1; 649: } 650: return undef; 651: } 652: 653: sub convert_and_load_session_env { 654: my ($lonidsdir,$handle)=@_; 655: my @profile; 656: { 657: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 658: if (!$opened) { 659: return 0; 660: } 661: flock($idf,LOCK_SH); 662: @profile=<$idf>; 663: close($idf); 664: } 665: my %temp_env; 666: foreach my $line (@profile) { 667: if ($line !~ m/=/) { 668: return 0; 669: } 670: chomp($line); 671: my ($envname,$envvalue)=split(/=/,$line,2); 672: $temp_env{&unescape($envname)} = &unescape($envvalue); 673: } 674: unlink("$lonidsdir/$handle.id"); 675: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(), 676: 0640)) { 677: %disk_env = %temp_env; 678: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)}; 679: untie(%disk_env); 680: } 681: return 1; 682: } 683: 684: # ------------------------------------------- Transfer profile into environment 685: my $env_loaded; 686: sub transfer_profile_to_env { 687: my ($lonidsdir,$handle,$force_transfer) = @_; 688: if (!$force_transfer && $env_loaded) { return; } 689: 690: if (!defined($lonidsdir)) { 691: $lonidsdir = $perlvar{'lonIDsDir'}; 692: } 693: if (!defined($handle)) { 694: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| ); 695: } 696: 697: my $convert; 698: { 699: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 700: if (!$opened) { 701: return; 702: } 703: flock($idf,LOCK_SH); 704: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", 705: &GDBM_READER(),0640)) { 706: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)}; 707: untie(%disk_env); 708: } else { 709: $convert = 1; 710: } 711: } 712: if ($convert) { 713: if (!&convert_and_load_session_env($lonidsdir,$handle)) { 714: &logthis("Failed to load session, or convert session."); 715: } 716: } 717: 718: my %remove; 719: while ( my $envname = each(%env) ) { 720: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) { 721: if ($time < time-300) { 722: $remove{$key}++; 723: } 724: } 725: } 726: 727: $env{'user.environment'} = "$lonidsdir/$handle.id"; 728: $env_loaded=1; 729: foreach my $expired_key (keys(%remove)) { 730: &delenv($expired_key); 731: } 732: } 733: 734: # ---------------------------------------------------- Check for valid session 735: sub check_for_valid_session { 736: my ($r,$name,$userhashref,$domref) = @_; 737: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 738: my ($lonidsdir,$linkname,$pubname,$secure,$lonid); 739: if ($name eq 'lonDAV') { 740: $lonidsdir=$r->dir_config('lonDAVsessDir'); 741: } else { 742: $lonidsdir=$r->dir_config('lonIDsDir'); 743: if ($name eq '') { 744: $name = 'lonID'; 745: } 746: } 747: if ($name eq 'lonID') { 748: $secure = 'lonSID'; 749: $linkname = 'lonLinkID'; 750: $pubname = 'lonPubID'; 751: if (exists($cookies{$secure})) { 752: $lonid=$cookies{$secure}; 753: } elsif (exists($cookies{$name})) { 754: $lonid=$cookies{$name}; 755: } elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) { 756: $lonid=$cookies{$linkname}; 757: } elsif (exists($cookies{$pubname})) { 758: $lonid=$cookies{$pubname}; 759: } 760: } else { 761: $lonid=$cookies{$name}; 762: } 763: return undef if (!$lonid); 764: 765: my $handle=&LONCAPA::clean_handle($lonid->value); 766: if (-l "$lonidsdir/$handle.id") { 767: my $link = readlink("$lonidsdir/$handle.id"); 768: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { 769: $handle = $1; 770: } 771: } 772: if (!-e "$lonidsdir/$handle.id") { 773: if ((ref($domref)) && ($name eq 'lonID') && 774: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { 775: my ($possuname,$possudom,$possuhome) = ($1,$2,$3); 776: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { 777: $$domref = $possudom; 778: } 779: } 780: return undef; 781: } 782: 783: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 784: return undef if (!$opened); 785: 786: flock($idf,LOCK_SH); 787: my %disk_env; 788: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id", 789: &GDBM_READER(),0640)) { 790: return undef; 791: } 792: 793: if (!defined($disk_env{'user.name'}) 794: || !defined($disk_env{'user.domain'})) { 795: untie(%disk_env); 796: return undef; 797: } 798: 799: if (ref($userhashref) eq 'HASH') { 800: $userhashref->{'name'} = $disk_env{'user.name'}; 801: $userhashref->{'domain'} = $disk_env{'user.domain'}; 802: if ($disk_env{'request.role'}) { 803: $userhashref->{'role'} = $disk_env{'request.role'}; 804: } 805: $userhashref->{'lti'} = $disk_env{'request.lti.login'}; 806: if ($userhashref->{'lti'}) { 807: $userhashref->{'ltitarget'} = $disk_env{'request.lti.target'}; 808: $userhashref->{'ltiuri'} = $disk_env{'request.lti.uri'}; 809: } 810: } 811: untie(%disk_env); 812: 813: return $handle; 814: } 815: 816: sub timed_flock { 817: my ($file,$lock_type) = @_; 818: my $failed=0; 819: eval { 820: local $SIG{__DIE__}='DEFAULT'; 821: local $SIG{ALRM}=sub { 822: $failed=1; 823: die("failed lock"); 824: }; 825: alarm(13); 826: flock($file,$lock_type); 827: alarm(0); 828: }; 829: if ($failed) { 830: return undef; 831: } else { 832: return 1; 833: } 834: } 835: 836: sub get_sessionfile_vars { 837: my ($handle,$lonidsdir,$storearr) = @_; 838: my %returnhash; 839: unless (ref($storearr) eq 'ARRAY') { 840: return %returnhash; 841: } 842: if (-l "$lonidsdir/$handle.id") { 843: my $link = readlink("$lonidsdir/$handle.id"); 844: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { 845: $handle = $1; 846: } 847: } 848: if ((-e "$lonidsdir/$handle.id") && 849: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { 850: my ($possuname,$possudom,$possuhome) = ($1,$2,$3); 851: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { 852: if (open(my $idf,'+<',"$lonidsdir/$handle.id")) { 853: flock($idf,LOCK_SH); 854: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", 855: &GDBM_READER(),0640)) { 856: foreach my $item (@{$storearr}) { 857: $returnhash{$item} = $disk_env{$item}; 858: } 859: untie(%disk_env); 860: } 861: } 862: } 863: } 864: return %returnhash; 865: } 866: 867: # ---------------------------------------------------------- Append Environment 868: 869: sub appenv { 870: my ($newenv,$roles) = @_; 871: if (ref($newenv) eq 'HASH') { 872: foreach my $key (keys(%{$newenv})) { 873: my $refused = 0; 874: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) { 875: $refused = 1; 876: if (ref($roles) eq 'ARRAY') { 877: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./}); 878: if (grep(/^\Q$role\E$/,@{$roles})) { 879: $refused = 0; 880: } 881: } 882: } 883: if ($refused) { 884: &logthis("WARNING: ". 885: "Attempt to modify environment ".$key." to ".$newenv->{$key} 886: .''); 887: delete($newenv->{$key}); 888: } else { 889: $env{$key}=$newenv->{$key}; 890: } 891: } 892: my $lonids = $perlvar{'lonIDsDir'}; 893: if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) { 894: my $opened = open(my $env_file,'+<',$env{'user.environment'}); 895: if ($opened 896: && &timed_flock($env_file,LOCK_EX) 897: && 898: tie(my %disk_env,'GDBM_File',$env{'user.environment'}, 899: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { 900: while (my ($key,$value) = each(%{$newenv})) { 901: $disk_env{$key} = $value; 902: } 903: untie(%disk_env); 904: } 905: } 906: } 907: return 'ok'; 908: } 909: # ----------------------------------------------------- Delete from Environment 910: 911: sub delenv { 912: my ($delthis,$regexp,$roles) = @_; 913: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) { 914: my $refused = 1; 915: if (ref($roles) eq 'ARRAY') { 916: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./); 917: if (grep(/^\Q$role\E$/,@{$roles})) { 918: $refused = 0; 919: } 920: } 921: if ($refused) { 922: &logthis("WARNING: ". 923: "Attempt to delete from environment ".$delthis); 924: return 'error'; 925: } 926: } 927: my $opened = open(my $env_file,'+<',$env{'user.environment'}); 928: if ($opened 929: && &timed_flock($env_file,LOCK_EX) 930: && 931: tie(my %disk_env,'GDBM_File',$env{'user.environment'}, 932: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { 933: foreach my $key (keys(%disk_env)) { 934: if ($regexp) { 935: if ($key=~/^$delthis/) { 936: delete($env{$key}); 937: delete($disk_env{$key}); 938: } 939: } else { 940: if ($key=~/^\Q$delthis\E/) { 941: delete($env{$key}); 942: delete($disk_env{$key}); 943: } 944: } 945: } 946: untie(%disk_env); 947: } 948: return 'ok'; 949: } 950: 951: sub get_env_multiple { 952: my ($name) = @_; 953: my @values; 954: if (defined($env{$name})) { 955: # exists is it an array 956: if (ref($env{$name})) { 957: @values=@{ $env{$name} }; 958: } else { 959: $values[0]=$env{$name}; 960: } 961: } 962: return(@values); 963: } 964: 965: # ------------------------------------------------------------------- Locking 966: 967: sub set_lock { 968: my ($text)=@_; 969: $locknum++; 970: my $id=$$.'-'.$locknum; 971: &appenv({'session.locks' => $env{'session.locks'}.','.$id, 972: 'session.lock.'.$id => $text}); 973: return $id; 974: } 975: 976: sub get_locks { 977: my $num=0; 978: my %texts=(); 979: foreach my $lock (split(/\,/,$env{'session.locks'})) { 980: if ($lock=~/\w/) { 981: $num++; 982: $texts{$lock}=$env{'session.lock.'.$lock}; 983: } 984: } 985: return ($num,%texts); 986: } 987: 988: sub remove_lock { 989: my ($id)=@_; 990: my $newlocks=''; 991: foreach my $lock (split(/\,/,$env{'session.locks'})) { 992: if (($lock=~/\w/) && ($lock ne $id)) { 993: $newlocks.=','.$lock; 994: } 995: } 996: &appenv({'session.locks' => $newlocks}); 997: &delenv('session.lock.'.$id); 998: } 999: 1000: sub remove_all_locks { 1001: my $activelocks=$env{'session.locks'}; 1002: foreach my $lock (split(/\,/,$env{'session.locks'})) { 1003: if ($lock=~/\w/) { 1004: &remove_lock($lock); 1005: } 1006: } 1007: } 1008: 1009: 1010: # ------------------------------------------ Find out current server userload 1011: sub userload { 1012: my $numusers=0; 1013: { 1014: opendir(LONIDS,$perlvar{'lonIDsDir'}); 1015: my $filename; 1016: my $curtime=time; 1017: while ($filename=readdir(LONIDS)) { 1018: next if ($filename eq '.' || $filename eq '..'); 1019: next if ($filename =~ /publicuser_\d+\.id/); 1020: next if ($filename =~ /^[a-f0-9]+_linked\.id$/); 1021: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; 1022: if ($curtime-$mtime < 1800) { $numusers++; } 1023: } 1024: closedir(LONIDS); 1025: } 1026: my $userloadpercent=0; 1027: my $maxuserload=$perlvar{'lonUserLoadLim'}; 1028: if ($maxuserload) { 1029: $userloadpercent=100*$numusers/$maxuserload; 1030: } 1031: $userloadpercent=sprintf("%.2f",$userloadpercent); 1032: return $userloadpercent; 1033: } 1034: 1035: # ------------------------------ Find server with least workload from spare.tab 1036: 1037: sub spareserver { 1038: my ($r,$loadpercent,$userloadpercent,$want_server_name,$udom) = @_; 1039: my $spare_server; 1040: if ($userloadpercent !~ /\d/) { $userloadpercent=0; } 1041: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent 1042: : $userloadpercent; 1043: my ($uint_dom,$remotesessions); 1044: if (($udom ne '') && (&domain($udom) ne '')) { 1045: my $uprimary_id = &domain($udom,'primary'); 1046: $uint_dom = &internet_dom($uprimary_id); 1047: my %udomdefaults = &get_domain_defaults($udom); 1048: $remotesessions = $udomdefaults{'remotesessions'}; 1049: } 1050: my $spareshash = &this_host_spares($udom); 1051: if (ref($spareshash) eq 'HASH') { 1052: if (ref($spareshash->{'primary'}) eq 'ARRAY') { 1053: foreach my $try_server (@{ $spareshash->{'primary'} }) { 1054: next unless (&spare_can_host($udom,$uint_dom,$remotesessions, 1055: $try_server)); 1056: ($spare_server, $lowest_load) = 1057: &compare_server_load($try_server, $spare_server, $lowest_load); 1058: } 1059: } 1060: 1061: my $found_server = ($spare_server ne '' && $lowest_load < 100); 1062: 1063: if (!$found_server) { 1064: if (ref($spareshash->{'default'}) eq 'ARRAY') { 1065: foreach my $try_server (@{ $spareshash->{'default'} }) { 1066: next unless (&spare_can_host($udom,$uint_dom, 1067: $remotesessions,$try_server)); 1068: ($spare_server, $lowest_load) = 1069: &compare_server_load($try_server, $spare_server, $lowest_load); 1070: } 1071: } 1072: } 1073: } 1074: 1075: if (!$want_server_name) { 1076: if (defined($spare_server)) { 1077: my $hostname = &hostname($spare_server); 1078: if (defined($hostname)) { 1079: my $protocol = 'http'; 1080: if ($protocol{$spare_server} eq 'https') { 1081: $protocol = $protocol{$spare_server}; 1082: } 1083: my $alias = &use_proxy_alias($r,$spare_server); 1084: $hostname = $alias if ($alias ne ''); 1085: $spare_server = $protocol.'://'.$hostname; 1086: } 1087: } 1088: } 1089: return $spare_server; 1090: } 1091: 1092: sub compare_server_load { 1093: my ($try_server, $spare_server, $lowest_load, $required) = @_; 1094: 1095: if ($required) { 1096: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/); 1097: my $remoterev = &get_server_loncaparev(undef,$try_server); 1098: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 1099: if (($major eq '' && $minor eq '') || 1100: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) { 1101: return ($spare_server,$lowest_load); 1102: } 1103: } 1104: 1105: my $loadans = &reply('load', $try_server); 1106: my $userloadans = &reply('userload',$try_server); 1107: 1108: if ($loadans !~ /\d/ && $userloadans !~ /\d/) { 1109: return ($spare_server, $lowest_load); #didn't get a number from the server 1110: } 1111: 1112: my $load; 1113: if ($loadans =~ /\d/) { 1114: if ($userloadans =~ /\d/) { 1115: #both are numbers, pick the bigger one 1116: $load = ($loadans > $userloadans) ? $loadans 1117: : $userloadans; 1118: } else { 1119: $load = $loadans; 1120: } 1121: } else { 1122: $load = $userloadans; 1123: } 1124: 1125: if (($load =~ /\d/) && ($load < $lowest_load)) { 1126: $spare_server = $try_server; 1127: $lowest_load = $load; 1128: } 1129: return ($spare_server,$lowest_load); 1130: } 1131: 1132: # --------------------------- ask offload servers if user already has a session 1133: sub find_existing_session { 1134: my ($udom,$uname) = @_; 1135: my $spareshash = &this_host_spares($udom); 1136: if (ref($spareshash) eq 'HASH') { 1137: if (ref($spareshash->{'primary'}) eq 'ARRAY') { 1138: foreach my $try_server (@{ $spareshash->{'primary'} }) { 1139: return $try_server if (&has_user_session($try_server, $udom, $uname)); 1140: } 1141: } 1142: if (ref($spareshash->{'default'}) eq 'ARRAY') { 1143: foreach my $try_server (@{ $spareshash->{'default'} }) { 1144: return $try_server if (&has_user_session($try_server, $udom, $uname)); 1145: } 1146: } 1147: } 1148: return; 1149: } 1150: 1151: sub delusersession { 1152: my ($lonid,$udom,$uname) = @_; 1153: my $uprimary_id = &domain($udom,'primary'); 1154: my $uintdom = &internet_dom($uprimary_id); 1155: my $intdom = &internet_dom($lonid); 1156: my $serverhomedom = &host_domain($lonid); 1157: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1158: return &reply(join(':','delusersession', 1159: map {&escape($_)} ($udom,$uname)),$lonid); 1160: } 1161: return; 1162: } 1163: 1164: # check if user's browser sent load balancer cookie and server still has session 1165: # and is not overloaded. 1166: sub check_for_balancer_cookie { 1167: my ($r,$update_mtime) = @_; 1168: my ($otherserver,$cookie); 1169: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 1170: if (exists($cookies{'balanceID'})) { 1171: my $balid = $cookies{'balanceID'}; 1172: $cookie=&LONCAPA::clean_handle($balid->value); 1173: my $balancedir=$r->dir_config('lonBalanceDir'); 1174: if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) { 1175: if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) { 1176: my ($possudom,$possuname) = ($1,$2); 1177: my $has_session = 0; 1178: if ((&domain($possudom) ne '') && 1179: (&homeserver($possuname,$possudom) ne 'no_host')) { 1180: my $try_server; 1181: my $opened = open(my $idf,'+<',"$balancedir/$cookie.id"); 1182: if ($opened) { 1183: flock($idf,LOCK_SH); 1184: while (my $line = <$idf>) { 1185: chomp($line); 1186: if (&hostname($line) ne '') { 1187: $try_server = $line; 1188: last; 1189: } 1190: } 1191: close($idf); 1192: if (($try_server) && 1193: (&has_user_session($try_server,$possudom,$possuname))) { 1194: my $lowest_load = 30000; 1195: ($otherserver,$lowest_load) = 1196: &compare_server_load($try_server,undef,$lowest_load); 1197: if ($otherserver ne '' && $lowest_load < 100) { 1198: $has_session = 1; 1199: } else { 1200: undef($otherserver); 1201: } 1202: } 1203: } 1204: } 1205: if ($has_session) { 1206: if ($update_mtime) { 1207: my $atime = my $mtime = time; 1208: utime($atime,$mtime,"$balancedir/$cookie.id"); 1209: } 1210: } else { 1211: unlink("$balancedir/$cookie.id"); 1212: } 1213: } 1214: } 1215: } 1216: return ($otherserver,$cookie); 1217: } 1218: 1219: sub updatebalcookie { 1220: my ($cookie,$balancer,$lastentry)=@_; 1221: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { 1222: my ($udom,$uname) = ($1,$2); 1223: my $uprimary_id = &domain($udom,'primary'); 1224: my $uintdom = &internet_dom($uprimary_id); 1225: my $intdom = &internet_dom($balancer); 1226: my $serverhomedom = &host_domain($balancer); 1227: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1228: return &reply('updatebalcookie:'.&escape($cookie).':'.&escape($lastentry),$balancer); 1229: } 1230: } 1231: return; 1232: } 1233: 1234: sub delbalcookie { 1235: my ($cookie,$balancer) =@_; 1236: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { 1237: my ($udom,$uname) = ($1,$2); 1238: my $uprimary_id = &domain($udom,'primary'); 1239: my $uintdom = &internet_dom($uprimary_id); 1240: my $intdom = &internet_dom($balancer); 1241: my $serverhomedom = &host_domain($balancer); 1242: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1243: return &reply('delbalcookie:'.&escape($cookie),$balancer); 1244: } 1245: } 1246: } 1247: 1248: # -------------------------------- ask if server already has a session for user 1249: sub has_user_session { 1250: my ($lonid,$udom,$uname) = @_; 1251: my $result = &reply(join(':','userhassession', 1252: map {&escape($_)} ($udom,$uname)),$lonid); 1253: return 1 if ($result eq 'ok'); 1254: 1255: return 0; 1256: } 1257: 1258: # --------- determine least loaded server in a user's domain which allows login 1259: 1260: sub choose_server { 1261: my ($udom,$checkloginvia,$required,$skiploadbal) = @_; 1262: my %domconfhash = &Apache::loncommon::get_domainconf($udom); 1263: my %servers = &get_servers($udom); 1264: my $lowest_load = 30000; 1265: my ($login_host,$hostname,$portal_path,$isredirect,$balancers); 1266: if ($skiploadbal) { 1267: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom); 1268: unless (defined($cached)) { 1269: my $cachetime = 60*60*24; 1270: my %domconfig = 1271: &get_dom('configuration',['loadbalancing'],$udom); 1272: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1273: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'}, 1274: $cachetime); 1275: } 1276: } 1277: } 1278: foreach my $lonhost (keys(%servers)) { 1279: if ($skiploadbal) { 1280: if (ref($balancers) eq 'HASH') { 1281: next if (exists($balancers->{$lonhost})); 1282: } 1283: } 1284: my $loginvia; 1285: if ($checkloginvia) { 1286: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost}; 1287: if ($loginvia) { 1288: my ($server,$path) = split(/:/,$loginvia); 1289: ($login_host, $lowest_load) = 1290: &compare_server_load($server, $login_host, $lowest_load, $required); 1291: if ($login_host eq $server) { 1292: $portal_path = $path; 1293: $isredirect = 1; 1294: } 1295: } else { 1296: ($login_host, $lowest_load) = 1297: &compare_server_load($lonhost, $login_host, $lowest_load, $required); 1298: if ($login_host eq $lonhost) { 1299: $portal_path = ''; 1300: $isredirect = ''; 1301: } 1302: } 1303: } else { 1304: ($login_host, $lowest_load) = 1305: &compare_server_load($lonhost, $login_host, $lowest_load, $required); 1306: } 1307: } 1308: if ($login_host ne '') { 1309: $hostname = &hostname($login_host); 1310: } 1311: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load); 1312: } 1313: 1314: sub get_course_sessions { 1315: my ($cnum,$cdom,$lastactivity) = @_; 1316: my %servers = &internet_dom_servers($cdom); 1317: my %returnhash; 1318: foreach my $server (sort(keys(%servers))) { 1319: my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server); 1320: my @pairs=split(/\&/,$rep); 1321: unless (($rep eq 'unknown_cmd') || ($rep =~ /^error/)) { 1322: foreach my $item (@pairs) { 1323: my ($key,$value)=split(/=/,$item,2); 1324: $key = &unescape($key); 1325: next if ($key =~ /^error: 2 /); 1326: if (exists($returnhash{$key})) { 1327: next if ($value < $returnhash{$key}); 1328: } 1329: $returnhash{$key}=$value; 1330: } 1331: } 1332: } 1333: return %returnhash; 1334: } 1335: 1336: # --------------------------------------------- Try to change a user's password 1337: 1338: sub changepass { 1339: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_; 1340: $currentpass = &escape($currentpass); 1341: $newpass = &escape($newpass); 1342: my $lonhost = $perlvar{'lonHostID'}; 1343: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost", 1344: $server); 1345: if (! $answer) { 1346: &logthis("No reply on password change request to $server ". 1347: "by $uname in domain $udom."); 1348: } elsif ($answer =~ "^ok") { 1349: &logthis("$uname in $udom successfully changed their password ". 1350: "on $server."); 1351: } elsif ($answer =~ "^pwchange_failure") { 1352: &logthis("$uname in $udom was unable to change their password ". 1353: "on $server. The action was blocked by either lcpasswd ". 1354: "or pwchange"); 1355: } elsif ($answer =~ "^non_authorized") { 1356: &logthis("$uname in $udom did not get their password correct when ". 1357: "attempting to change it on $server."); 1358: } elsif ($answer =~ "^auth_mode_error") { 1359: &logthis("$uname in $udom attempted to change their password despite ". 1360: "not being locally or internally authenticated on $server."); 1361: } elsif ($answer =~ "^unknown_user") { 1362: &logthis("$uname in $udom attempted to change their password ". 1363: "on $server but were unable to because $server is not ". 1364: "their home server."); 1365: } elsif ($answer =~ "^refused") { 1366: &logthis("$server refused to change $uname in $udom password because ". 1367: "it was sent an unencrypted request to change the password."); 1368: } elsif ($answer =~ "invalid_client") { 1369: &logthis("$server refused to change $uname in $udom password because ". 1370: "it was a reset by e-mail originating from an invalid server."); 1371: } elsif ($answer =~ "^prioruse") { 1372: &logthis("$server refused to change $uname in $udom password because ". 1373: "the password had been used before"); 1374: } 1375: return $answer; 1376: } 1377: 1378: # ----------------------- Try to determine user's current authentication scheme 1379: 1380: sub queryauthenticate { 1381: my ($uname,$udom)=@_; 1382: my $uhome=&homeserver($uname,$udom); 1383: if ((!$uhome) || ($uhome eq 'no_host')) { 1384: &logthis("User $uname at $udom is unknown when looking for authentication mechanism"); 1385: return 'no_host'; 1386: } 1387: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome); 1388: if ($answer =~ /^(unknown_user|refused|con_lost)/) { 1389: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); 1390: } 1391: return $answer; 1392: } 1393: 1394: # --------- Try to authenticate user from domain's lib servers (first this one) 1395: 1396: sub authenticate { 1397: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_; 1398: $upass=&escape($upass); 1399: $uname= &LONCAPA::clean_username($uname); 1400: my $uhome=&homeserver($uname,$udom,1); 1401: my $newhome; 1402: if ((!$uhome) || ($uhome eq 'no_host')) { 1403: # Maybe the machine was offline and only re-appeared again recently? 1404: &reconlonc(); 1405: # One more 1406: $uhome=&homeserver($uname,$udom,1); 1407: if (($uhome eq 'no_host') && $checkdefauth) { 1408: if (defined(&domain($udom,'primary'))) { 1409: $newhome=&domain($udom,'primary'); 1410: } 1411: if ($newhome ne '') { 1412: $uhome = $newhome; 1413: } 1414: } 1415: if ((!$uhome) || ($uhome eq 'no_host')) { 1416: &logthis("User $uname at $udom is unknown in authenticate"); 1417: return 'no_host'; 1418: } 1419: } 1420: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome); 1421: if ($answer eq 'authorized') { 1422: if ($newhome) { 1423: &logthis("User $uname at $udom authorized by $uhome, but needs account"); 1424: return 'no_account_on_host'; 1425: } else { 1426: &logthis("User $uname at $udom authorized by $uhome"); 1427: return $uhome; 1428: } 1429: } 1430: if ($answer eq 'non_authorized') { 1431: &logthis("User $uname at $udom rejected by $uhome"); 1432: return 'no_host'; 1433: } 1434: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); 1435: return 'no_host'; 1436: } 1437: 1438: sub can_switchserver { 1439: my ($udom,$home) = @_; 1440: my ($canswitch,@intdoms); 1441: my $internet_names = &get_internet_names($home); 1442: if (ref($internet_names) eq 'ARRAY') { 1443: @intdoms = @{$internet_names}; 1444: } 1445: my $uint_dom = &internet_dom(&domain($udom,'primary')); 1446: if ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) { 1447: $canswitch = 1; 1448: } else { 1449: my $serverhomeID = &get_server_homeID(&hostname($home)); 1450: my $serverhomedom = &host_domain($serverhomeID); 1451: my %defdomdefaults = &get_domain_defaults($serverhomedom); 1452: my %udomdefaults = &get_domain_defaults($udom); 1453: my $remoterev = &get_server_loncaparev('',$home); 1454: $canswitch = &can_host_session($udom,$home,$remoterev, 1455: $udomdefaults{'remotesessions'}, 1456: $defdomdefaults{'hostedsessions'}); 1457: } 1458: return $canswitch; 1459: } 1460: 1461: sub can_host_session { 1462: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_; 1463: my $canhost = 1; 1464: my $host_idn = &internet_dom($lonhost); 1465: if (ref($remotesessions) eq 'HASH') { 1466: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') { 1467: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) { 1468: $canhost = 0; 1469: } else { 1470: $canhost = 1; 1471: } 1472: } 1473: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') { 1474: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) { 1475: $canhost = 1; 1476: } else { 1477: $canhost = 0; 1478: } 1479: } 1480: if ($canhost) { 1481: if ($remotesessions->{'version'} ne '') { 1482: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/); 1483: if ($reqmajor ne '' && $reqminor ne '') { 1484: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) { 1485: my $major = $1; 1486: my $minor = $2; 1487: if (($major < $reqmajor ) || 1488: (($major == $reqmajor) && ($minor < $reqminor))) { 1489: $canhost = 0; 1490: } 1491: } else { 1492: $canhost = 0; 1493: } 1494: } 1495: } 1496: } 1497: } 1498: if ($canhost) { 1499: if (ref($hostedsessions) eq 'HASH') { 1500: my $uprimary_id = &domain($udom,'primary'); 1501: my $uint_dom = &internet_dom($uprimary_id); 1502: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') { 1503: if (($uint_dom ne '') && 1504: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) { 1505: $canhost = 0; 1506: } else { 1507: $canhost = 1; 1508: } 1509: } 1510: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') { 1511: if (($uint_dom ne '') && 1512: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) { 1513: $canhost = 1; 1514: } else { 1515: $canhost = 0; 1516: } 1517: } 1518: } 1519: } 1520: return $canhost; 1521: } 1522: 1523: sub spare_can_host { 1524: my ($udom,$uint_dom,$remotesessions,$try_server)=@_; 1525: my $canhost=1; 1526: my $try_server_hostname = &hostname($try_server); 1527: my $serverhomeID = &get_server_homeID($try_server_hostname); 1528: my $serverhomedom = &host_domain($serverhomeID); 1529: my %defdomdefaults = &get_domain_defaults($serverhomedom); 1530: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') { 1531: if ($defdomdefaults{'offloadnow'}{$try_server}) { 1532: $canhost = 0; 1533: } 1534: } 1535: if ($canhost) { 1536: if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') { 1537: if ($defdomdefaults{'offloadoth'}{$try_server}) { 1538: unless (&shared_institution($udom,$try_server)) { 1539: $canhost = 0; 1540: } 1541: } 1542: } 1543: } 1544: if (($canhost) && ($uint_dom)) { 1545: my @intdoms; 1546: my $internet_names = &get_internet_names($try_server); 1547: if (ref($internet_names) eq 'ARRAY') { 1548: @intdoms = @{$internet_names}; 1549: } 1550: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) { 1551: my $remoterev = &get_server_loncaparev(undef,$try_server); 1552: $canhost = &can_host_session($udom,$try_server,$remoterev, 1553: $remotesessions, 1554: $defdomdefaults{'hostedsessions'}); 1555: } 1556: } 1557: return $canhost; 1558: } 1559: 1560: sub this_host_spares { 1561: my ($dom) = @_; 1562: my ($dom_in_use,$lonhost_in_use,$result); 1563: my @hosts = &current_machine_ids(); 1564: foreach my $lonhost (@hosts) { 1565: if (&host_domain($lonhost) eq $dom) { 1566: $dom_in_use = $dom; 1567: $lonhost_in_use = $lonhost; 1568: last; 1569: } 1570: } 1571: if ($dom_in_use ne '') { 1572: $result = &spares_for_offload($dom_in_use,$lonhost_in_use); 1573: } 1574: if (ref($result) ne 'HASH') { 1575: $lonhost_in_use = $perlvar{'lonHostID'}; 1576: $dom_in_use = &host_domain($lonhost_in_use); 1577: $result = &spares_for_offload($dom_in_use,$lonhost_in_use); 1578: if (ref($result) ne 'HASH') { 1579: $result = \%spareid; 1580: } 1581: } 1582: return $result; 1583: } 1584: 1585: sub spares_for_offload { 1586: my ($dom_in_use,$lonhost_in_use) = @_; 1587: my ($result,$cached)=&is_cached_new('spares',$dom_in_use); 1588: if (defined($cached)) { 1589: return $result; 1590: } else { 1591: my $cachetime = 60*60*24; 1592: my %domconfig = 1593: &get_dom('configuration',['usersessions'],$dom_in_use); 1594: if (ref($domconfig{'usersessions'}) eq 'HASH') { 1595: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') { 1596: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') { 1597: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime); 1598: } 1599: } 1600: } 1601: } 1602: return; 1603: } 1604: 1605: sub get_lonbalancer_config { 1606: my ($servers) = @_; 1607: my ($currbalancer,$currtargets); 1608: if (ref($servers) eq 'HASH') { 1609: foreach my $server (keys(%{$servers})) { 1610: my %what = ( 1611: spareid => 1, 1612: perlvar => 1, 1613: ); 1614: my ($result,$returnhash) = &get_remote_globals($server,\%what); 1615: if ($result eq 'ok') { 1616: if (ref($returnhash) eq 'HASH') { 1617: if (ref($returnhash->{'perlvar'}) eq 'HASH') { 1618: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') { 1619: $currbalancer = $server; 1620: $currtargets = {}; 1621: if (ref($returnhash->{'spareid'}) eq 'HASH') { 1622: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') { 1623: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'}; 1624: } 1625: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') { 1626: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'}; 1627: } 1628: } 1629: last; 1630: } 1631: } 1632: } 1633: } 1634: } 1635: } 1636: return ($currbalancer,$currtargets); 1637: } 1638: 1639: sub check_loadbalancing { 1640: my ($uname,$udom,$caller) = @_; 1641: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom, 1642: $rule_in_effect,$offloadto,$otherserver,$setcookie,$dom_balancers); 1643: my $lonhost = $perlvar{'lonHostID'}; 1644: my @hosts = &current_machine_ids(); 1645: my $uprimary_id = &domain($udom,'primary'); 1646: my $uintdom = &internet_dom($uprimary_id); 1647: my $intdom = &internet_dom($lonhost); 1648: my $serverhomedom = &host_domain($lonhost); 1649: my $domneedscache; 1650: my $cachetime = 60*60*24; 1651: 1652: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1653: $dom_in_use = $udom; 1654: $homeintdom = 1; 1655: } else { 1656: $dom_in_use = $serverhomedom; 1657: } 1658: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use); 1659: unless (defined($cached)) { 1660: my %domconfig = 1661: &get_dom('configuration',['loadbalancing'],$dom_in_use); 1662: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1663: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime); 1664: } else { 1665: $domneedscache = $dom_in_use; 1666: } 1667: } 1668: if (ref($result) eq 'HASH') { 1669: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = 1670: &check_balancer_result($result,@hosts); 1671: if ($is_balancer) { 1672: if (ref($currrules) eq 'HASH') { 1673: if ($homeintdom) { 1674: if ($uname ne '') { 1675: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) { 1676: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname); 1677: if (($currrules->{'_LC_author'} ne '') && ($is_author)) { 1678: $rule_in_effect = $currrules->{'_LC_author'}; 1679: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) { 1680: $rule_in_effect = $currrules->{'_LC_adv'} 1681: } 1682: } 1683: if ($rule_in_effect eq '') { 1684: my %userenv = &userenvironment($udom,$uname,'inststatus'); 1685: if ($userenv{'inststatus'} ne '') { 1686: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'}); 1687: my ($othertitle,$usertypes,$types) = 1688: &Apache::loncommon::sorted_inst_types($udom); 1689: if (ref($types) eq 'ARRAY') { 1690: foreach my $type (@{$types}) { 1691: if (grep(/^\Q$type\E$/,@statuses)) { 1692: if (exists($currrules->{$type})) { 1693: $rule_in_effect = $currrules->{$type}; 1694: } 1695: } 1696: } 1697: } 1698: } else { 1699: if (exists($currrules->{'default'})) { 1700: $rule_in_effect = $currrules->{'default'}; 1701: } 1702: } 1703: } 1704: } else { 1705: if (exists($currrules->{'default'})) { 1706: $rule_in_effect = $currrules->{'default'}; 1707: } 1708: } 1709: } else { 1710: if ($currrules->{'_LC_external'} ne '') { 1711: $rule_in_effect = $currrules->{'_LC_external'}; 1712: } 1713: } 1714: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, 1715: $uname,$udom); 1716: } 1717: } 1718: } elsif (($homeintdom) && ($udom ne $serverhomedom)) { 1719: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom); 1720: unless (defined($cached)) { 1721: my %domconfig = 1722: &get_dom('configuration',['loadbalancing'],$serverhomedom); 1723: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1724: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime); 1725: } else { 1726: $domneedscache = $serverhomedom; 1727: } 1728: } 1729: if (ref($result) eq 'HASH') { 1730: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = 1731: &check_balancer_result($result,@hosts); 1732: if ($is_balancer) { 1733: if (ref($currrules) eq 'HASH') { 1734: if ($currrules->{'_LC_internetdom'} ne '') { 1735: $rule_in_effect = $currrules->{'_LC_internetdom'}; 1736: } 1737: } 1738: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, 1739: $uname,$udom); 1740: } 1741: } else { 1742: if ($perlvar{'lonBalancer'} eq 'yes') { 1743: $is_balancer = 1; 1744: $offloadto = &this_host_spares($dom_in_use); 1745: } 1746: unless (defined($cached)) { 1747: $domneedscache = $serverhomedom; 1748: } 1749: } 1750: } else { 1751: if ($perlvar{'lonBalancer'} eq 'yes') { 1752: $is_balancer = 1; 1753: $offloadto = &this_host_spares($dom_in_use); 1754: } 1755: unless (defined($cached)) { 1756: $domneedscache = $serverhomedom; 1757: } 1758: } 1759: if ($domneedscache) { 1760: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime); 1761: } 1762: if (($is_balancer) && ($caller ne 'switchserver')) { 1763: my $lowest_load = 30000; 1764: if (ref($offloadto) eq 'HASH') { 1765: if (ref($offloadto->{'primary'}) eq 'ARRAY') { 1766: foreach my $try_server (@{$offloadto->{'primary'}}) { 1767: ($otherserver,$lowest_load) = 1768: &compare_server_load($try_server,$otherserver,$lowest_load); 1769: } 1770: } 1771: my $found_server = ($otherserver ne '' && $lowest_load < 100); 1772: 1773: if (!$found_server) { 1774: if (ref($offloadto->{'default'}) eq 'ARRAY') { 1775: foreach my $try_server (@{$offloadto->{'default'}}) { 1776: ($otherserver,$lowest_load) = 1777: &compare_server_load($try_server,$otherserver,$lowest_load); 1778: } 1779: } 1780: } 1781: } elsif (ref($offloadto) eq 'ARRAY') { 1782: if (@{$offloadto} == 1) { 1783: $otherserver = $offloadto->[0]; 1784: } elsif (@{$offloadto} > 1) { 1785: foreach my $try_server (@{$offloadto}) { 1786: ($otherserver,$lowest_load) = 1787: &compare_server_load($try_server,$otherserver,$lowest_load); 1788: } 1789: } 1790: } 1791: unless ($caller eq 'login') { 1792: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) { 1793: $is_balancer = 0; 1794: if ($uname ne '' && $udom ne '') { 1795: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { 1796: &appenv({'user.loadbalexempt' => $lonhost, 1797: 'user.loadbalcheck.time' => time}); 1798: } 1799: } 1800: } 1801: } 1802: } 1803: if (($is_balancer) && (!$homeintdom)) { 1804: undef($setcookie); 1805: } 1806: return ($is_balancer,$otherserver,$setcookie,$offloadto,$dom_balancers); 1807: } 1808: 1809: sub check_balancer_result { 1810: my ($result,@hosts) = @_; 1811: my ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); 1812: if (ref($result) eq 'HASH') { 1813: if ($result->{'lonhost'} ne '') { 1814: my $currbalancer = $result->{'lonhost'}; 1815: if (grep(/^\Q$currbalancer\E$/,@hosts)) { 1816: $is_balancer = 1; 1817: $currtargets = $result->{'targets'}; 1818: $currrules = $result->{'rules'}; 1819: } 1820: $dom_balancers = $currbalancer; 1821: } else { 1822: if (keys(%{$result})) { 1823: foreach my $key (keys(%{$result})) { 1824: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) && 1825: (ref($result->{$key}) eq 'HASH')) { 1826: $is_balancer = 1; 1827: $currrules = $result->{$key}{'rules'}; 1828: $currtargets = $result->{$key}{'targets'}; 1829: $setcookie = $result->{$key}{'cookie'}; 1830: last; 1831: } 1832: } 1833: $dom_balancers = join(',',sort(keys(%{$result}))); 1834: } 1835: } 1836: } 1837: return ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); 1838: } 1839: 1840: sub get_loadbalancer_targets { 1841: my ($rule_in_effect,$currtargets,$uname,$udom) = @_; 1842: my $offloadto; 1843: if ($rule_in_effect eq 'none') { 1844: return [$perlvar{'lonHostID'}]; 1845: } elsif ($rule_in_effect eq '') { 1846: $offloadto = $currtargets; 1847: } else { 1848: if ($rule_in_effect eq 'homeserver') { 1849: my $homeserver = &homeserver($uname,$udom); 1850: if ($homeserver ne 'no_host') { 1851: $offloadto = [$homeserver]; 1852: } 1853: } elsif ($rule_in_effect eq 'externalbalancer') { 1854: my %domconfig = 1855: &get_dom('configuration',['loadbalancing'],$udom); 1856: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1857: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') { 1858: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') { 1859: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}]; 1860: } 1861: } 1862: } else { 1863: my %servers = &internet_dom_servers($udom); 1864: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers); 1865: if (&hostname($remotebalancer) ne '') { 1866: $offloadto = [$remotebalancer]; 1867: } 1868: } 1869: } elsif (&hostname($rule_in_effect) ne '') { 1870: $offloadto = [$rule_in_effect]; 1871: } 1872: } 1873: return $offloadto; 1874: } 1875: 1876: sub internet_dom_servers { 1877: my ($dom) = @_; 1878: my (%uniqservers,%servers); 1879: my $primaryserver = &hostname(&domain($dom,'primary')); 1880: my @machinedoms = &machine_domains($primaryserver); 1881: foreach my $mdom (@machinedoms) { 1882: my %currservers = %servers; 1883: my %server = &get_servers($mdom); 1884: %servers = (%currservers,%server); 1885: } 1886: my %by_hostname; 1887: foreach my $id (keys(%servers)) { 1888: push(@{$by_hostname{$servers{$id}}},$id); 1889: } 1890: foreach my $hostname (sort(keys(%by_hostname))) { 1891: if (@{$by_hostname{$hostname}} > 1) { 1892: my $match = 0; 1893: foreach my $id (@{$by_hostname{$hostname}}) { 1894: if (&host_domain($id) eq $dom) { 1895: $uniqservers{$id} = $hostname; 1896: $match = 1; 1897: } 1898: } 1899: unless ($match) { 1900: $uniqservers{$by_hostname{$hostname}[0]} = $hostname; 1901: } 1902: } else { 1903: $uniqservers{$by_hostname{$hostname}[0]} = $hostname; 1904: } 1905: } 1906: return %uniqservers; 1907: } 1908: 1909: sub trusted_domains { 1910: my ($cmdtype,$calldom) = @_; 1911: my ($trusted,$untrusted); 1912: if (&domain($calldom) eq '') { 1913: return ($trusted,$untrusted); 1914: } 1915: unless ($cmdtype =~ /^(content|shared|enroll|coaurem|othcoau|domroles|catalog|reqcrs|msg)$/) { 1916: return ($trusted,$untrusted); 1917: } 1918: my $callprimary = &domain($calldom,'primary'); 1919: my $intcalldom = &internet_dom($callprimary); 1920: if ($intcalldom eq '') { 1921: return ($trusted,$untrusted); 1922: } 1923: 1924: my ($trustconfig,$cached)=&is_cached_new('trust',$calldom); 1925: unless (defined($cached)) { 1926: my %domconfig = &get_dom('configuration',['trust'],$calldom); 1927: &do_cache_new('trust',$calldom,$domconfig{'trust'},3600); 1928: $trustconfig = $domconfig{'trust'}; 1929: } 1930: if (ref($trustconfig)) { 1931: my (%possexc,%possinc,@allexc,@allinc); 1932: if (ref($trustconfig->{$cmdtype}) eq 'HASH') { 1933: if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') { 1934: map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}}; 1935: } 1936: if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') { 1937: $possinc{$intcalldom} = 1; 1938: map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}}; 1939: } 1940: } 1941: if (keys(%possexc)) { 1942: if (keys(%possinc)) { 1943: foreach my $key (sort(keys(%possexc))) { 1944: next if ($key eq $intcalldom); 1945: unless ($possinc{$key}) { 1946: push(@allexc,$key); 1947: } 1948: } 1949: } else { 1950: @allexc = sort(keys(%possexc)); 1951: } 1952: } 1953: if (keys(%possinc)) { 1954: $possinc{$intcalldom} = 1; 1955: @allinc = sort(keys(%possinc)); 1956: } 1957: if ((@allexc > 0) || (@allinc > 0)) { 1958: my %doms_by_intdom; 1959: my %allintdoms = &all_host_intdom(); 1960: my %alldoms = &all_host_domain(); 1961: foreach my $key (%allintdoms) { 1962: if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') { 1963: unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) { 1964: push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key}); 1965: } 1966: } else { 1967: $doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}]; 1968: } 1969: } 1970: foreach my $exc (@allexc) { 1971: if (ref($doms_by_intdom{$exc}) eq 'ARRAY') { 1972: push(@{$untrusted},@{$doms_by_intdom{$exc}}); 1973: } 1974: } 1975: foreach my $inc (@allinc) { 1976: if (ref($doms_by_intdom{$inc}) eq 'ARRAY') { 1977: push(@{$trusted},@{$doms_by_intdom{$inc}}); 1978: } 1979: } 1980: } 1981: } 1982: return ($trusted,$untrusted); 1983: } 1984: 1985: sub will_trust { 1986: my ($cmdtype,$domain,$possdom) = @_; 1987: return 1 if ($domain eq $possdom); 1988: my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom); 1989: my $willtrust; 1990: if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) { 1991: if (grep(/^\Q$domain\E$/,@{$trustedref})) { 1992: $willtrust = 1; 1993: } 1994: } elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) { 1995: unless (grep(/^\Q$domain\E$/,@{$untrustedref})) { 1996: $willtrust = 1; 1997: } 1998: } else { 1999: $willtrust = 1; 2000: } 2001: return $willtrust; 2002: } 2003: 2004: # ---------------------- Find the homebase for a user from domain's lib servers 2005: 2006: my %homecache; 2007: sub homeserver { 2008: my ($uname,$udom,$ignoreBadCache)=@_; 2009: my $index="$uname:$udom"; 2010: 2011: if (exists($homecache{$index})) { return $homecache{$index}; } 2012: 2013: my %servers = &get_servers($udom,'library'); 2014: foreach my $tryserver (keys(%servers)) { 2015: next if ($ignoreBadCache ne 'true' && 2016: exists($badServerCache{$tryserver})); 2017: 2018: my $answer=reply("home:$udom:$uname",$tryserver); 2019: if ($answer eq 'found') { 2020: delete($badServerCache{$tryserver}); 2021: return $homecache{$index}=$tryserver; 2022: } elsif ($answer eq 'no_host') { 2023: $badServerCache{$tryserver}=1; 2024: } 2025: } 2026: return 'no_host'; 2027: } 2028: 2029: # ----- Find the usernames behind a list of student/employee IDs or clicker IDs 2030: 2031: sub idget { 2032: my ($udom,$idsref,$namespace)=@_; 2033: my %returnhash=(); 2034: my @ids=(); 2035: if (ref($idsref) eq 'ARRAY') { 2036: @ids = @{$idsref}; 2037: } else { 2038: return %returnhash; 2039: } 2040: if ($namespace eq '') { 2041: $namespace = 'ids'; 2042: } 2043: 2044: my %servers = &get_servers($udom,'library'); 2045: foreach my $tryserver (keys(%servers)) { 2046: my $idlist=join('&', map { &escape($_); } @ids); 2047: if ($namespace eq 'ids') { 2048: $idlist=~tr/A-Z/a-z/; 2049: } 2050: my $reply; 2051: if ($namespace eq 'ids') { 2052: $reply=&reply("idget:$udom:".$idlist,$tryserver); 2053: } else { 2054: $reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver); 2055: } 2056: my @answer=(); 2057: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) { 2058: @answer=split(/\&/,$reply); 2059: } ; 2060: my $i; 2061: for ($i=0;$i<=$#ids;$i++) { 2062: if ($answer[$i]) { 2063: $returnhash{$ids[$i]}=&unescape($answer[$i]); 2064: } 2065: } 2066: } 2067: return %returnhash; 2068: } 2069: 2070: # ------------------------------------- Find the IDs behind a list of usernames 2071: 2072: sub idrget { 2073: my ($udom,@unames)=@_; 2074: my %returnhash=(); 2075: foreach my $uname (@unames) { 2076: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1]; 2077: } 2078: return %returnhash; 2079: } 2080: 2081: # Store away a list of names and associated student/employee IDs or clicker IDs 2082: 2083: sub idput { 2084: my ($udom,$idsref,$uhom,$namespace)=@_; 2085: my %servers=(); 2086: my %ids=(); 2087: my %byid = (); 2088: if (ref($idsref) eq 'HASH') { 2089: %ids=%{$idsref}; 2090: } 2091: if ($namespace eq '') { 2092: $namespace = 'ids'; 2093: } 2094: foreach my $uname (keys(%ids)) { 2095: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname); 2096: if ($uhom eq '') { 2097: $uhom=&homeserver($uname,$udom); 2098: } 2099: if ($uhom ne 'no_host') { 2100: my $esc_unam=&escape($uname); 2101: if ($namespace eq 'ids') { 2102: my $id=&escape($ids{$uname}); 2103: $id=~tr/A-Z/a-z/; 2104: my $esc_unam=&escape($uname); 2105: $servers{$uhom}.=$id.'='.$esc_unam.'&'; 2106: } else { 2107: my @currids = split(/,/,$ids{$uname}); 2108: foreach my $id (@currids) { 2109: $byid{$uhom}{$id} .= $uname.','; 2110: } 2111: } 2112: } 2113: } 2114: if ($namespace eq 'clickers') { 2115: foreach my $server (keys(%byid)) { 2116: if (ref($byid{$server}) eq 'HASH') { 2117: foreach my $id (keys(%{$byid{$server}})) { 2118: $byid{$server} =~ s/,$//; 2119: $servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&'; 2120: } 2121: } 2122: } 2123: } 2124: foreach my $server (keys(%servers)) { 2125: $servers{$server} =~ s/\&$//; 2126: if ($namespace eq 'ids') { 2127: &critical('idput:'.$udom.':'.$servers{$server},$server); 2128: } else { 2129: &critical('updateclickers:'.$udom.':add:'.$servers{$server},$server); 2130: } 2131: } 2132: } 2133: 2134: # ------------- Delete unwanted student/employee IDs or clicker IDs from domain 2135: 2136: sub iddel { 2137: my ($udom,$idshashref,$uhome,$namespace)=@_; 2138: my %result=(); 2139: my %ids=(); 2140: my %byid = (); 2141: if (ref($idshashref) eq 'HASH') { 2142: %ids=%{$idshashref}; 2143: } else { 2144: return %result; 2145: } 2146: if ($namespace eq '') { 2147: $namespace = 'ids'; 2148: } 2149: my %servers=(); 2150: while (my ($id,$unamestr) = each(%ids)) { 2151: if ($namespace eq 'ids') { 2152: my $uhom = $uhome; 2153: if ($uhom eq '') { 2154: $uhom=&homeserver($unamestr,$udom); 2155: } 2156: if ($uhom ne 'no_host') { 2157: $servers{$uhom}.='&'.&escape($id); 2158: } 2159: } else { 2160: my @curritems = split(/,/,$ids{$id}); 2161: foreach my $uname (@curritems) { 2162: my $uhom = $uhome; 2163: if ($uhom eq '') { 2164: $uhom=&homeserver($uname,$udom); 2165: } 2166: if ($uhom ne 'no_host') { 2167: $byid{$uhom}{$id} .= $uname.','; 2168: } 2169: } 2170: } 2171: } 2172: if ($namespace eq 'clickers') { 2173: foreach my $server (keys(%byid)) { 2174: if (ref($byid{$server}) eq 'HASH') { 2175: foreach my $id (keys(%{$byid{$server}})) { 2176: $byid{$server}{$id} =~ s/,$//; 2177: $servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&'; 2178: } 2179: } 2180: } 2181: } 2182: foreach my $server (keys(%servers)) { 2183: $servers{$server} =~ s/\&$//; 2184: if ($namespace eq 'ids') { 2185: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome); 2186: } elsif ($namespace eq 'clickers') { 2187: $result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server); 2188: } 2189: } 2190: return %result; 2191: } 2192: 2193: # ----- Update clicker ID-to-username look-ups in clickers.db on library server 2194: 2195: sub updateclickers { 2196: my ($udom,$action,$idshashref,$uhome,$critical) = @_; 2197: my %clickers; 2198: if (ref($idshashref) eq 'HASH') { 2199: %clickers=%{$idshashref}; 2200: } else { 2201: return; 2202: } 2203: my $items=''; 2204: foreach my $item (keys(%clickers)) { 2205: $items.=&escape($item).'='.&escape($clickers{$item}).'&'; 2206: } 2207: $items=~s/\&$//; 2208: my $request = "updateclickers:$udom:$action:$items"; 2209: if ($critical) { 2210: return &critical($request,$uhome); 2211: } else { 2212: return &reply($request,$uhome); 2213: } 2214: } 2215: 2216: # ------------------------------dump from db file owned by domainconfig user 2217: sub dump_dom { 2218: my ($namespace, $udom, $regexp) = @_; 2219: 2220: $udom ||= $env{'user.domain'}; 2221: 2222: return () unless $udom; 2223: 2224: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp); 2225: } 2226: 2227: # ------------------------------------------ get items from domain db files 2228: 2229: sub get_dom { 2230: my ($namespace,$storearr,$udom,$uhome,$encrypt)=@_; 2231: return if ($udom eq 'public'); 2232: my $items=''; 2233: foreach my $item (@$storearr) { 2234: $items.=&escape($item).'&'; 2235: } 2236: $items=~s/\&$//; 2237: if (!$udom) { 2238: $udom=$env{'user.domain'}; 2239: return if ($udom eq 'public'); 2240: if (defined(&domain($udom,'primary'))) { 2241: $uhome=&domain($udom,'primary'); 2242: } else { 2243: undef($uhome); 2244: } 2245: } else { 2246: if (!$uhome) { 2247: if (defined(&domain($udom,'primary'))) { 2248: $uhome=&domain($udom,'primary'); 2249: } 2250: } 2251: } 2252: if ($udom && $uhome && ($uhome ne 'no_host')) { 2253: my $rep; 2254: if (grep { $_ eq $uhome } &current_machine_ids()) { 2255: # domain information is hosted on this machine 2256: $rep = &LONCAPA::Lond::get_dom("getdom:$udom:$namespace:$items"); 2257: } else { 2258: if ($encrypt) { 2259: $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome); 2260: } else { 2261: $rep=&reply("getdom:$udom:$namespace:$items",$uhome); 2262: } 2263: } 2264: my %returnhash; 2265: if ($rep eq '' || $rep =~ /^error: 2 /) { 2266: return %returnhash; 2267: } 2268: my @pairs=split(/\&/,$rep); 2269: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) { 2270: return @pairs; 2271: } 2272: my $i=0; 2273: foreach my $item (@$storearr) { 2274: $returnhash{$item}=&thaw_unescape($pairs[$i]); 2275: $i++; 2276: } 2277: return %returnhash; 2278: } else { 2279: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)"); 2280: } 2281: } 2282: 2283: # -------------------------------------------- put items in domain db files 2284: 2285: sub put_dom { 2286: my ($namespace,$storehash,$udom,$uhome,$encrypt)=@_; 2287: if (!$udom) { 2288: $udom=$env{'user.domain'}; 2289: if (defined(&domain($udom,'primary'))) { 2290: $uhome=&domain($udom,'primary'); 2291: } else { 2292: undef($uhome); 2293: } 2294: } else { 2295: if (!$uhome) { 2296: if (defined(&domain($udom,'primary'))) { 2297: $uhome=&domain($udom,'primary'); 2298: } 2299: } 2300: } 2301: if ($udom && $uhome && ($uhome ne 'no_host')) { 2302: my $items=''; 2303: foreach my $item (keys(%$storehash)) { 2304: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 2305: } 2306: $items=~s/\&$//; 2307: if ($encrypt) { 2308: return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome); 2309: } else { 2310: return &reply("putdom:$udom:$namespace:$items",$uhome); 2311: } 2312: } else { 2313: &logthis("put_dom failed - no homeserver and/or domain"); 2314: } 2315: } 2316: 2317: # --------------------- newput for items in db file owned by domainconfig user 2318: sub newput_dom { 2319: my ($namespace,$storehash,$udom) = @_; 2320: my $result; 2321: if (!$udom) { 2322: $udom=$env{'user.domain'}; 2323: } 2324: if ($udom) { 2325: my $uname = &get_domainconfiguser($udom); 2326: $result = &newput($namespace,$storehash,$udom,$uname); 2327: } 2328: return $result; 2329: } 2330: 2331: # --------------------- delete for items in db file owned by domainconfig user 2332: sub del_dom { 2333: my ($namespace,$storearr,$udom)=@_; 2334: if (ref($storearr) eq 'ARRAY') { 2335: if (!$udom) { 2336: $udom=$env{'user.domain'}; 2337: } 2338: if ($udom) { 2339: my $uname = &get_domainconfiguser($udom); 2340: return &del($namespace,$storearr,$udom,$uname); 2341: } 2342: } 2343: } 2344: 2345: sub store_dom { 2346: my ($storehash,$id,$namespace,$dom,$home,$encrypt) = @_; 2347: $$storehash{'ip'}=&get_requestor_ip(); 2348: $$storehash{'host'}=$perlvar{'lonHostID'}; 2349: my $namevalue=''; 2350: foreach my $key (keys(%{$storehash})) { 2351: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 2352: } 2353: $namevalue=~s/\&$//; 2354: if (grep { $_ eq $home } current_machine_ids()) { 2355: return LONCAPA::Lond::store_dom("storedom:$dom:$namespace:$id:$namevalue"); 2356: } else { 2357: if ($namespace eq 'private') { 2358: return 'refused'; 2359: } elsif ($encrypt) { 2360: return reply("encrypt:storedom:$dom:$namespace:$id:$namevalue",$home); 2361: } else { 2362: return reply("storedom:$dom:$namespace:$id:$namevalue",$home); 2363: } 2364: } 2365: } 2366: 2367: sub restore_dom { 2368: my ($id,$namespace,$dom,$home,$encrypt) = @_; 2369: my $answer; 2370: if (grep { $_ eq $home } current_machine_ids()) { 2371: $answer = LONCAPA::Lond::restore_dom("restoredom:$dom:$namespace:$id"); 2372: } elsif ($namespace ne 'private') { 2373: if ($encrypt) { 2374: $answer=&reply("encrypt:restoredom:$dom:$namespace:$id",$home); 2375: } else { 2376: $answer=&reply("restoredom:$dom:$namespace:$id",$home); 2377: } 2378: } 2379: my %returnhash=(); 2380: unless (($answer eq '') || ($answer eq 'con_lost') || ($answer eq 'refused') || 2381: ($answer eq 'unknown_cmd') || ($answer eq 'rejected')) { 2382: foreach my $line (split(/\&/,$answer)) { 2383: my ($name,$value)=split(/\=/,$line); 2384: $returnhash{&unescape($name)}=&thaw_unescape($value); 2385: } 2386: my $version; 2387: for ($version=1;$version<=$returnhash{'version'};$version++) { 2388: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) { 2389: $returnhash{$item}=$returnhash{$version.':'.$item}; 2390: } 2391: } 2392: } 2393: return %returnhash; 2394: } 2395: 2396: # ----------------------------------construct domainconfig user for a domain 2397: sub get_domainconfiguser { 2398: my ($udom) = @_; 2399: return $udom.'-domainconfig'; 2400: } 2401: 2402: sub retrieve_inst_usertypes { 2403: my ($udom) = @_; 2404: my (%returnhash,@order); 2405: my %domdefs = &get_domain_defaults($udom); 2406: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') && 2407: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) { 2408: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'}); 2409: } else { 2410: if (defined(&domain($udom,'primary'))) { 2411: my $uhome=&domain($udom,'primary'); 2412: my $rep=&reply("inst_usertypes:$udom",$uhome); 2413: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) { 2414: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom"); 2415: return (\%returnhash,\@order); 2416: } 2417: my ($hashitems,$orderitems) = split(/:/,$rep); 2418: my @pairs=split(/\&/,$hashitems); 2419: foreach my $item (@pairs) { 2420: my ($key,$value)=split(/=/,$item,2); 2421: $key = &unescape($key); 2422: next if ($key =~ /^error: 2 /); 2423: $returnhash{$key}=&thaw_unescape($value); 2424: } 2425: my @esc_order = split(/\&/,$orderitems); 2426: foreach my $item (@esc_order) { 2427: push(@order,&unescape($item)); 2428: } 2429: } else { 2430: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom"); 2431: } 2432: return (\%returnhash,\@order); 2433: } 2434: } 2435: 2436: sub is_domainimage { 2437: my ($url) = @_; 2438: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo|login)/+[^/]-) { 2439: if (&domain($1) ne '') { 2440: return '1'; 2441: } 2442: } 2443: return; 2444: } 2445: 2446: sub inst_directory_query { 2447: my ($srch) = @_; 2448: my $udom = $srch->{'srchdomain'}; 2449: my %results; 2450: my $homeserver = &domain($udom,'primary'); 2451: my $outcome; 2452: if ($homeserver ne '') { 2453: unless ($homeserver eq $perlvar{'lonHostID'}) { 2454: if ($srch->{'srchby'} eq 'email') { 2455: my $lcrev = &get_server_loncaparev($udom,$homeserver); 2456: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 2457: if (($major eq '' && $minor eq '') || ($major < 2) || 2458: (($major == 2) && ($minor < 12))) { 2459: return; 2460: } 2461: } 2462: } 2463: my $queryid=&reply("querysend:instdirsearch:". 2464: &escape($srch->{'srchby'}).':'. 2465: &escape($srch->{'srchterm'}).':'. 2466: &escape($srch->{'srchtype'}),$homeserver); 2467: my $host=&hostname($homeserver); 2468: if ($queryid !~/^\Q$host\E\_/) { 2469: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom); 2470: return; 2471: } 2472: my $response = &get_query_reply($queryid); 2473: my $maxtries = 5; 2474: my $tries = 1; 2475: while (($response=~/^timeout/) && ($tries < $maxtries)) { 2476: $response = &get_query_reply($queryid); 2477: $tries ++; 2478: } 2479: 2480: if (!&error($response) && $response ne 'refused') { 2481: if ($response eq 'unavailable') { 2482: $outcome = $response; 2483: } else { 2484: $outcome = 'ok'; 2485: my @matches = split(/\n/,$response); 2486: foreach my $match (@matches) { 2487: my ($key,$value) = split(/=/,$match); 2488: $results{&unescape($key).':'.$udom} = &thaw_unescape($value); 2489: } 2490: } 2491: } 2492: } 2493: return ($outcome,%results); 2494: } 2495: 2496: sub usersearch { 2497: my ($srch) = @_; 2498: my $dom = $srch->{'srchdomain'}; 2499: my %results; 2500: my %libserv = &all_library(); 2501: my $query = 'usersearch'; 2502: foreach my $tryserver (keys(%libserv)) { 2503: if (&host_domain($tryserver) eq $dom) { 2504: unless ($tryserver eq $perlvar{'lonHostID'}) { 2505: if ($srch->{'srchby'} eq 'email') { 2506: my $lcrev = &get_server_loncaparev($dom,$tryserver); 2507: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 2508: next if (($major eq '' && $minor eq '') || ($major < 2) || 2509: (($major == 2) && ($minor < 12))); 2510: } 2511: } 2512: my $host=&hostname($tryserver); 2513: my $queryid= 2514: &reply("querysend:".&escape($query).':'. 2515: &escape($srch->{'srchby'}).':'. 2516: &escape($srch->{'srchtype'}).':'. 2517: &escape($srch->{'srchterm'}),$tryserver); 2518: if ($queryid !~/^\Q$host\E\_/) { 2519: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver); 2520: next; 2521: } 2522: my $reply = &get_query_reply($queryid); 2523: my $maxtries = 1; 2524: my $tries = 1; 2525: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 2526: $reply = &get_query_reply($queryid); 2527: $tries ++; 2528: } 2529: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 2530: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries); 2531: } else { 2532: my @matches; 2533: if ($reply =~ /\n/) { 2534: @matches = split(/\n/,$reply); 2535: } else { 2536: @matches = split(/\&/,$reply); 2537: } 2538: foreach my $match (@matches) { 2539: my ($uname,$udom,%userhash); 2540: foreach my $entry (split(/:/,$match)) { 2541: my ($key,$value) = 2542: map {&unescape($_);} split(/=/,$entry); 2543: $userhash{$key} = $value; 2544: if ($key eq 'username') { 2545: $uname = $value; 2546: } elsif ($key eq 'domain') { 2547: $udom = $value; 2548: } 2549: } 2550: $results{$uname.':'.$udom} = \%userhash; 2551: } 2552: } 2553: } 2554: } 2555: return %results; 2556: } 2557: 2558: sub get_instuser { 2559: my ($udom,$uname,$id) = @_; 2560: my $homeserver = &domain($udom,'primary'); 2561: my ($outcome,%results); 2562: if ($homeserver ne '') { 2563: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'. 2564: &escape($id).':'.&escape($udom),$homeserver); 2565: my $host=&hostname($homeserver); 2566: if ($queryid !~/^\Q$host\E\_/) { 2567: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom); 2568: return; 2569: } 2570: my $response = &get_query_reply($queryid); 2571: my $maxtries = 5; 2572: my $tries = 1; 2573: while (($response=~/^timeout/) && ($tries < $maxtries)) { 2574: $response = &get_query_reply($queryid); 2575: $tries ++; 2576: } 2577: if (!&error($response) && $response ne 'refused') { 2578: if ($response eq 'unavailable') { 2579: $outcome = $response; 2580: } else { 2581: $outcome = 'ok'; 2582: my @matches = split(/\n/,$response); 2583: foreach my $match (@matches) { 2584: my ($key,$value) = split(/=/,$match); 2585: $results{&unescape($key)} = &thaw_unescape($value); 2586: } 2587: } 2588: } 2589: } 2590: my %userinfo; 2591: if (ref($results{$uname}) eq 'HASH') { 2592: %userinfo = %{$results{$uname}}; 2593: } 2594: return ($outcome,%userinfo); 2595: } 2596: 2597: sub get_multiple_instusers { 2598: my ($udom,$users,$caller) = @_; 2599: my ($outcome,$results); 2600: if (ref($users) eq 'HASH') { 2601: my $count = keys(%{$users}); 2602: my $requested = &freeze_escape($users); 2603: my $homeserver = &domain($udom,'primary'); 2604: if ($homeserver ne '') { 2605: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver); 2606: my $host=&hostname($homeserver); 2607: if ($queryid !~/^\Q$host\E\_/) { 2608: &logthis('get_multiple_instusers invalid queryid: '.$queryid. 2609: ' for host: '.$homeserver.'in domain '.$udom); 2610: return ($outcome,$results); 2611: } 2612: my $response = &get_query_reply($queryid); 2613: my $maxtries = 5; 2614: if ($count > 100) { 2615: $maxtries = 1+int($count/20); 2616: } 2617: my $tries = 1; 2618: while (($response=~/^timeout/) && ($tries <= $maxtries)) { 2619: $response = &get_query_reply($queryid); 2620: $tries ++; 2621: } 2622: if ($response eq '') { 2623: $results = {}; 2624: foreach my $key (keys(%{$users})) { 2625: my ($uname,$id); 2626: if ($caller eq 'id') { 2627: $id = $key; 2628: } else { 2629: $uname = $key; 2630: } 2631: my ($resp,%info) = &get_instuser($udom,$uname,$id); 2632: $outcome = $resp; 2633: if ($resp eq 'ok') { 2634: %{$results} = (%{$results}, %info); 2635: } else { 2636: last; 2637: } 2638: } 2639: } elsif(!&error($response) && ($response ne 'refused')) { 2640: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) { 2641: $outcome = $response; 2642: } else { 2643: ($outcome,my $userdata) = split(/=/,$response,2); 2644: if ($outcome eq 'ok') { 2645: $results = &thaw_unescape($userdata); 2646: } 2647: } 2648: } 2649: } 2650: } 2651: return ($outcome,$results); 2652: } 2653: 2654: sub inst_rulecheck { 2655: my ($udom,$uname,$id,$item,$rules) = @_; 2656: my %returnhash; 2657: if ($udom ne '') { 2658: if (ref($rules) eq 'ARRAY') { 2659: @{$rules} = map {&escape($_);} (@{$rules}); 2660: my $rulestr = join(':',@{$rules}); 2661: my $homeserver=&domain($udom,'primary'); 2662: if (($homeserver ne '') && ($homeserver ne 'no_host')) { 2663: my $response; 2664: if ($item eq 'username') { 2665: $response=&unescape(&reply('instrulecheck:'.&escape($udom). 2666: ':'.&escape($uname).':'.$rulestr, 2667: $homeserver)); 2668: } elsif ($item eq 'id') { 2669: $response=&unescape(&reply('instidrulecheck:'.&escape($udom). 2670: ':'.&escape($id).':'.$rulestr, 2671: $homeserver)); 2672: } elsif ($item eq 'selfcreate') { 2673: $response=&unescape(&reply('instselfcreatecheck:'. 2674: &escape($udom).':'.&escape($uname). 2675: ':'.$rulestr,$homeserver)); 2676: } elsif ($item eq 'unamemap') { 2677: $response=&unescape(&reply('instunamemapcheck:'. 2678: &escape($udom).':'.&escape($uname). 2679: ':'.$rulestr,$homeserver)); 2680: } 2681: if ($response ne 'refused') { 2682: my @pairs=split(/\&/,$response); 2683: foreach my $item (@pairs) { 2684: my ($key,$value)=split(/=/,$item,2); 2685: $key = &unescape($key); 2686: next if ($key =~ /^error: 2 /); 2687: $returnhash{$key}=&thaw_unescape($value); 2688: } 2689: } 2690: } 2691: } 2692: } 2693: return %returnhash; 2694: } 2695: 2696: sub inst_userrules { 2697: my ($udom,$check) = @_; 2698: my (%ruleshash,@ruleorder); 2699: if ($udom ne '') { 2700: my $homeserver=&domain($udom,'primary'); 2701: if (($homeserver ne '') && ($homeserver ne 'no_host')) { 2702: my $response; 2703: if ($check eq 'id') { 2704: $response=&reply('instidrules:'.&escape($udom), 2705: $homeserver); 2706: } elsif ($check eq 'email') { 2707: $response=&reply('instemailrules:'.&escape($udom), 2708: $homeserver); 2709: } elsif ($check eq 'unamemap') { 2710: $response=&reply('unamemaprules:'.&escape($udom), 2711: $homeserver); 2712: } else { 2713: $response=&reply('instuserrules:'.&escape($udom), 2714: $homeserver); 2715: } 2716: if (($response ne 'refused') && ($response ne 'error') && 2717: ($response ne 'unknown_cmd') && 2718: ($response ne 'no_such_host')) { 2719: my ($hashitems,$orderitems) = split(/:/,$response); 2720: my @pairs=split(/\&/,$hashitems); 2721: foreach my $item (@pairs) { 2722: my ($key,$value)=split(/=/,$item,2); 2723: $key = &unescape($key); 2724: next if ($key =~ /^error: 2 /); 2725: $ruleshash{$key}=&thaw_unescape($value); 2726: } 2727: my @esc_order = split(/\&/,$orderitems); 2728: foreach my $item (@esc_order) { 2729: push(@ruleorder,&unescape($item)); 2730: } 2731: } 2732: } 2733: } 2734: return (\%ruleshash,\@ruleorder); 2735: } 2736: 2737: # ------------- Get Authentication, Language and User Tools Defaults for Domain 2738: 2739: sub get_domain_defaults { 2740: my ($domain,$ignore_cache) = @_; 2741: return if (($domain eq '') || ($domain eq 'public')); 2742: my $cachetime = 60*60*24; 2743: unless ($ignore_cache) { 2744: my ($result,$cached)=&is_cached_new('domdefaults',$domain); 2745: if (defined($cached)) { 2746: if (ref($result) eq 'HASH') { 2747: return %{$result}; 2748: } 2749: } 2750: } 2751: my %domdefaults; 2752: my %domconfig = 2753: &get_dom('configuration',['defaults','quotas', 2754: 'requestcourses','inststatus', 2755: 'coursedefaults','usersessions', 2756: 'requestauthor','authordefaults', 2757: 'selfenrollment','coursecategories', 2758: 'ssl','autoenroll','trust', 2759: 'helpsettings','wafproxy', 2760: 'ltisec','toolsec','privacy'],$domain); 2761: my @coursetypes = ('official','unofficial','community','textbook','placement'); 2762: if (ref($domconfig{'defaults'}) eq 'HASH') { 2763: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'}; 2764: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'}; 2765: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'}; 2766: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'}; 2767: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'}; 2768: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'}; 2769: $domdefaults{'portal_def_email'} = $domconfig{'defaults'}{'portal_def_email'}; 2770: $domdefaults{'portal_def_web'} = $domconfig{'defaults'}{'portal_def_web'}; 2771: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'}; 2772: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'}; 2773: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'}; 2774: $domdefaults{'unamemap_rule'} = $domconfig{'defaults'}{'unamemap_rule'}; 2775: } else { 2776: $domdefaults{'lang_def'} = &domain($domain,'lang_def'); 2777: $domdefaults{'auth_def'} = &domain($domain,'auth_def'); 2778: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def'); 2779: } 2780: if (ref($domconfig{'quotas'}) eq 'HASH') { 2781: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') { 2782: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'}; 2783: } else { 2784: $domdefaults{'defaultquota'} = $domconfig{'quotas'}; 2785: } 2786: my @usertools = ('aboutme','blog','webdav','portfolio','portaccess'); 2787: foreach my $item (@usertools) { 2788: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') { 2789: $domdefaults{$item} = $domconfig{'quotas'}{$item}; 2790: } 2791: } 2792: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') { 2793: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'}; 2794: } 2795: } 2796: if (ref($domconfig{'requestcourses'}) eq 'HASH') { 2797: foreach my $item ('official','unofficial','community','textbook','placement') { 2798: $domdefaults{$item} = $domconfig{'requestcourses'}{$item}; 2799: } 2800: } 2801: if (ref($domconfig{'requestauthor'}) eq 'HASH') { 2802: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'}; 2803: } 2804: if (ref($domconfig{'authordefaults'}) eq 'HASH') { 2805: foreach my $item ('nocodemirror','copyright','sourceavail','domcoordacc','editors') { 2806: if ($item eq 'editors') { 2807: if (ref($domconfig{'authordefaults'}{'editors'}) eq 'ARRAY') { 2808: $domdefaults{$item} = join(',',@{$domconfig{'authordefaults'}{'editors'}}); 2809: } 2810: } else { 2811: $domdefaults{$item} = $domconfig{'authordefaults'}{$item}; 2812: } 2813: } 2814: } 2815: if (ref($domconfig{'inststatus'}) eq 'HASH') { 2816: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') { 2817: $domdefaults{$item} = $domconfig{'inststatus'}{$item}; 2818: } 2819: } 2820: if (ref($domconfig{'coursedefaults'}) eq 'HASH') { 2821: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'}; 2822: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'}; 2823: $domdefaults{'inline_chem'} = $domconfig{'coursedefaults'}{'inline_chem'}; 2824: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'}; 2825: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') { 2826: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'}; 2827: } 2828: foreach my $type (@coursetypes) { 2829: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') { 2830: unless ($type eq 'community') { 2831: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type}; 2832: } 2833: } 2834: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') { 2835: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type}; 2836: } 2837: if (ref($domconfig{'coursedefaults'}{'coursequota'}) eq 'HASH') { 2838: $domdefaults{$type.'coursequota'} = $domconfig{'coursedefaults'}{'coursequota'}{$type}; 2839: } 2840: if ($domdefaults{'postsubmit'} eq 'on') { 2841: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') { 2842: $domdefaults{$type.'postsubtimeout'} = 2843: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type}; 2844: } 2845: } 2846: if (ref($domconfig{'coursedefaults'}{'domexttool'}) eq 'HASH') { 2847: $domdefaults{$type.'domexttool'} = $domconfig{'coursedefaults'}{'domexttool'}{$type}; 2848: } else { 2849: $domdefaults{$type.'domexttool'} = 1; 2850: } 2851: if (ref($domconfig{'coursedefaults'}{'exttool'}) eq 'HASH') { 2852: $domdefaults{$type.'exttool'} = $domconfig{'coursedefaults'}{'exttool'}{$type}; 2853: } else { 2854: $domdefaults{$type.'exttool'} = 0; 2855: } 2856: if (ref($domconfig{'coursedefaults'}{'crsauthor'}) eq 'HASH') { 2857: $domdefaults{$type.'crsauthor'} = $domconfig{'coursedefaults'}{'crsauthor'}{$type}; 2858: } else { 2859: $domdefaults{$type.'crsauthor'} = 1; 2860: } 2861: } 2862: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') { 2863: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') { 2864: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}}; 2865: if (@clonecodes) { 2866: $domdefaults{'canclone'} = join('+',@clonecodes); 2867: } 2868: } 2869: } elsif ($domconfig{'coursedefaults'}{'canclone'}) { 2870: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'}; 2871: } 2872: if ($domconfig{'coursedefaults'}{'texengine'}) { 2873: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'}; 2874: } 2875: if (exists($domconfig{'coursedefaults'}{'ltiauth'})) { 2876: $domdefaults{'crsltiauth'} = $domconfig{'coursedefaults'}{'ltiauth'}; 2877: } 2878: } 2879: if (ref($domconfig{'usersessions'}) eq 'HASH') { 2880: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') { 2881: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'}; 2882: } 2883: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') { 2884: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'}; 2885: } 2886: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') { 2887: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'}; 2888: } 2889: if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') { 2890: $domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'}; 2891: } 2892: } 2893: if (ref($domconfig{'selfenrollment'}) eq 'HASH') { 2894: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') { 2895: my @settings = ('types','registered','enroll_dates','access_dates','section', 2896: 'approval','limit'); 2897: foreach my $type (@coursetypes) { 2898: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') { 2899: my @mgrdc = (); 2900: foreach my $item (@settings) { 2901: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') { 2902: push(@mgrdc,$item); 2903: } 2904: } 2905: if (@mgrdc) { 2906: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc); 2907: } 2908: } 2909: } 2910: } 2911: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') { 2912: foreach my $type (@coursetypes) { 2913: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') { 2914: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) { 2915: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item}; 2916: } 2917: } 2918: } 2919: } 2920: } 2921: if (ref($domconfig{'coursecategories'}) eq 'HASH') { 2922: $domdefaults{'catauth'} = 'std'; 2923: $domdefaults{'catunauth'} = 'std'; 2924: if ($domconfig{'coursecategories'}{'auth'}) { 2925: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'}; 2926: } 2927: if ($domconfig{'coursecategories'}{'unauth'}) { 2928: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'}; 2929: } 2930: } 2931: if (ref($domconfig{'ssl'}) eq 'HASH') { 2932: if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') { 2933: $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'}; 2934: } 2935: if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') { 2936: $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'}; 2937: } 2938: if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') { 2939: $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'}; 2940: } 2941: } 2942: if (ref($domconfig{'trust'}) eq 'HASH') { 2943: my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg); 2944: foreach my $prefix (@prefixes) { 2945: if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') { 2946: $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix}; 2947: } 2948: } 2949: } 2950: if (ref($domconfig{'autoenroll'}) eq 'HASH') { 2951: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'}; 2952: $domdefaults{'failsafe'} = $domconfig{'autoenroll'}{'failsafe'}; 2953: } 2954: if (ref($domconfig{'helpsettings'}) eq 'HASH') { 2955: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'}; 2956: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') { 2957: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'}; 2958: } 2959: } 2960: if (ref($domconfig{'wafproxy'}) eq 'HASH') { 2961: foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') { 2962: if ($domconfig{'wafproxy'}{$item}) { 2963: $domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item}; 2964: } 2965: } 2966: } 2967: if (ref($domconfig{'ltisec'}) eq 'HASH') { 2968: if (ref($domconfig{'ltisec'}{'encrypt'}) eq 'HASH') { 2969: $domdefaults{'linkprotenc_crs'} = $domconfig{'ltisec'}{'encrypt'}{'crs'}; 2970: $domdefaults{'linkprotenc_dom'} = $domconfig{'ltisec'}{'encrypt'}{'dom'}; 2971: $domdefaults{'ltienc_consumers'} = $domconfig{'ltisec'}{'encrypt'}{'consumers'}; 2972: } 2973: if (ref($domconfig{'ltisec'}{'private'}) eq 'HASH') { 2974: if (ref($domconfig{'ltisec'}{'private'}{'keys'}) eq 'ARRAY') { 2975: $domdefaults{'ltiprivhosts'} = $domconfig{'ltisec'}{'private'}{'keys'}; 2976: } 2977: } 2978: } 2979: if (ref($domconfig{'toolsec'}) eq 'HASH') { 2980: if (ref($domconfig{'toolsec'}{'encrypt'}) eq 'HASH') { 2981: $domdefaults{'toolenc_crs'} = $domconfig{'toolsec'}{'encrypt'}{'crs'}; 2982: $domdefaults{'toolenc_dom'} = $domconfig{'toolsec'}{'encrypt'}{'dom'}; 2983: } 2984: if (ref($domconfig{'toolsec'}{'private'}) eq 'HASH') { 2985: if (ref($domconfig{'toolsec'}{'private'}{'keys'}) eq 'ARRAY') { 2986: $domdefaults{'toolprivhosts'} = $domconfig{'toolsec'}{'private'}{'keys'}; 2987: } 2988: } 2989: } 2990: if (ref($domconfig{'privacy'}) eq 'HASH') { 2991: if (ref($domconfig{'privacy'}{'approval'}) eq 'HASH') { 2992: foreach my $domtype ('instdom','extdom') { 2993: if (ref($domconfig{'privacy'}{'approval'}{$domtype}) eq 'HASH') { 2994: foreach my $roletype ('domain','author','course','community') { 2995: if ($domconfig{'privacy'}{'approval'}{$domtype}{$roletype} eq 'user') { 2996: $domdefaults{'userapprovals'} = 1; 2997: last; 2998: } 2999: } 3000: } 3001: last if ($domdefaults{'userapprovals'}); 3002: } 3003: } 3004: } 3005: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime); 3006: return %domdefaults; 3007: } 3008: 3009: sub get_dom_cats { 3010: my ($dom) = @_; 3011: return unless (&domain($dom)); 3012: my ($cats,$cached)=&is_cached_new('cats',$dom); 3013: unless (defined($cached)) { 3014: my %domconfig = &get_dom('configuration',['coursecategories'],$dom); 3015: if (ref($domconfig{'coursecategories'}) eq 'HASH') { 3016: if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') { 3017: %{$cats} = %{$domconfig{'coursecategories'}{'cats'}}; 3018: } else { 3019: $cats = {}; 3020: } 3021: } else { 3022: $cats = {}; 3023: } 3024: &do_cache_new('cats',$dom,$cats,3600); 3025: } 3026: return $cats; 3027: } 3028: 3029: sub get_dom_instcats { 3030: my ($dom) = @_; 3031: return unless (&domain($dom)); 3032: my ($instcats,$cached)=&is_cached_new('instcats',$dom); 3033: unless (defined($cached)) { 3034: my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order); 3035: my $totcodes = &retrieve_instcodes(\%coursecodes,$dom); 3036: if ($totcodes > 0) { 3037: my $caller = 'global'; 3038: if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes, 3039: \@codetitles,\%cat_titles,\%cat_order) eq 'ok') { 3040: $instcats = { 3041: totcodes => $totcodes, 3042: codes => \%codes, 3043: codetitles => \@codetitles, 3044: cat_titles => \%cat_titles, 3045: cat_order => \%cat_order, 3046: }; 3047: &do_cache_new('instcats',$dom,$instcats,3600); 3048: } 3049: } 3050: } 3051: return $instcats; 3052: } 3053: 3054: sub retrieve_instcodes { 3055: my ($coursecodes,$dom) = @_; 3056: my $totcodes; 3057: my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course'); 3058: foreach my $course (keys(%courses)) { 3059: if (ref($courses{$course}) eq 'HASH') { 3060: if ($courses{$course}{'inst_code'} ne '') { 3061: $$coursecodes{$course} = $courses{$course}{'inst_code'}; 3062: $totcodes ++; 3063: } 3064: } 3065: } 3066: return $totcodes; 3067: } 3068: 3069: sub course_portal_url { 3070: my ($cnum,$cdom,$r) = @_; 3071: my $chome = &homeserver($cnum,$cdom); 3072: my $hostname = &hostname($chome); 3073: my $protocol = $protocol{$chome}; 3074: $protocol = 'http' if ($protocol ne 'https'); 3075: my %domdefaults = &get_domain_defaults($cdom); 3076: my $firsturl; 3077: if ($domdefaults{'portal_def'}) { 3078: $firsturl = $domdefaults{'portal_def'}; 3079: } else { 3080: my $alias = &use_proxy_alias($r,$chome); 3081: $hostname = $alias if ($alias ne ''); 3082: $firsturl = $protocol.'://'.$hostname; 3083: } 3084: return $firsturl; 3085: } 3086: 3087: sub url_prefix { 3088: my ($r,$dom,$home,$context) = @_; 3089: my $prefix; 3090: my %domdefs = &get_domain_defaults($dom); 3091: if ($domdefs{'portal_def'} && $domdefs{'portal_def_'.$context}) { 3092: if ($domdefs{'portal_def'} =~ m{^(https?://[^/]+)}) { 3093: $prefix = $1; 3094: } 3095: } 3096: if ($prefix eq '') { 3097: my $hostname = &hostname($home); 3098: my $protocol = $protocol{$home}; 3099: $protocol = 'http' if ($protocol{$home} ne 'https'); 3100: my $alias = &use_proxy_alias($r,$home); 3101: $hostname = $alias if ($alias ne ''); 3102: $prefix = $protocol.'://'.$hostname; 3103: } 3104: return $prefix; 3105: } 3106: 3107: # --------------------------------------------- Get domain config for passwords 3108: 3109: sub get_passwdconf { 3110: my ($dom) = @_; 3111: my (%passwdconf,$gotconf,$lookup); 3112: my ($result,$cached)=&is_cached_new('passwdconf',$dom); 3113: if (defined($cached)) { 3114: if (ref($result) eq 'HASH') { 3115: %passwdconf = %{$result}; 3116: $gotconf = 1; 3117: } 3118: } 3119: unless ($gotconf) { 3120: my %domconfig = &get_dom('configuration',['passwords'],$dom); 3121: if (ref($domconfig{'passwords'}) eq 'HASH') { 3122: %passwdconf = %{$domconfig{'passwords'}}; 3123: } 3124: my $cachetime = 24*60*60; 3125: &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime); 3126: } 3127: return %passwdconf; 3128: } 3129: 3130: # --------------------------------------------------- Assign a key to a student 3131: 3132: sub assign_access_key { 3133: # 3134: # a valid key looks like uname:udom#comments 3135: # comments are being appended 3136: # 3137: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_; 3138: $kdom= 3139: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom)); 3140: $knum= 3141: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum)); 3142: $cdom= 3143: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 3144: $cnum= 3145: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 3146: $udom=$env{'user.name'} unless (defined($udom)); 3147: $uname=$env{'user.domain'} unless (defined($uname)); 3148: my %existing=&get('accesskeys',[$ckey],$kdom,$knum); 3149: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key 3150: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) { 3151: # assigned to this person 3152: # - this should not happen, 3153: # unless something went wrong 3154: # the first time around 3155: # ready to assign 3156: $logentry=$1.'; '.$logentry; 3157: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry}, 3158: $kdom,$knum) eq 'ok') { 3159: # key now belongs to user 3160: my $envkey='key.'.$cdom.'_'.$cnum; 3161: if (&put('environment',{$envkey => $ckey}) eq 'ok') { 3162: &appenv({'environment.'.$envkey => $ckey}); 3163: return 'ok'; 3164: } else { 3165: return 3166: 'error: Count not permanently assign key, will need to be re-entered later.'; 3167: } 3168: } else { 3169: return 'error: Could not assign key, try again later.'; 3170: } 3171: } elsif (!$existing{$ckey}) { 3172: # the key does not exist 3173: return 'error: The key does not exist'; 3174: } else { 3175: # the key is somebody else's 3176: return 'error: The key is already in use'; 3177: } 3178: } 3179: 3180: # ------------------------------------------ put an additional comment on a key 3181: 3182: sub comment_access_key { 3183: # 3184: # a valid key looks like uname:udom#comments 3185: # comments are being appended 3186: # 3187: my ($ckey,$cdom,$cnum,$logentry)=@_; 3188: $cdom= 3189: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 3190: $cnum= 3191: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 3192: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); 3193: if ($existing{$ckey}) { 3194: $existing{$ckey}.='; '.$logentry; 3195: # ready to assign 3196: if (&put('accesskeys',{$ckey=>$existing{$ckey}}, 3197: $cdom,$cnum) eq 'ok') { 3198: return 'ok'; 3199: } else { 3200: return 'error: Count not store comment.'; 3201: } 3202: } else { 3203: # the key does not exist 3204: return 'error: The key does not exist'; 3205: } 3206: } 3207: 3208: # ------------------------------------------------------ Generate a set of keys 3209: 3210: sub generate_access_keys { 3211: my ($number,$cdom,$cnum,$logentry)=@_; 3212: $cdom= 3213: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 3214: $cnum= 3215: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 3216: unless (&allowed('mky',$cdom)) { return 0; } 3217: unless (($cdom) && ($cnum)) { return 0; } 3218: if ($number>10000) { return 0; } 3219: sleep(2); # make sure don't get same seed twice 3220: srand(time()^($$+($$<<15))); # from "Programming Perl" 3221: my $total=0; 3222: for (my $i=1;$i<=$number;$i++) { 3223: my $newkey=sprintf("%lx",int(100000*rand)).'-'. 3224: sprintf("%lx",int(100000*rand)).'-'. 3225: sprintf("%lx",int(100000*rand)); 3226: $newkey=~s/1/g/g; # folks mix up 1 and l 3227: $newkey=~s/0/h/g; # and also 0 and O 3228: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum); 3229: if ($existing{$newkey}) { 3230: $i--; 3231: } else { 3232: if (&put('accesskeys', 3233: { $newkey => '# generated '.localtime(). 3234: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}. 3235: '; '.$logentry }, 3236: $cdom,$cnum) eq 'ok') { 3237: $total++; 3238: } 3239: } 3240: } 3241: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 3242: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom); 3243: return $total; 3244: } 3245: 3246: # ------------------------------------------------------- Validate an accesskey 3247: 3248: sub validate_access_key { 3249: my ($ckey,$cdom,$cnum,$udom,$uname)=@_; 3250: $cdom= 3251: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 3252: $cnum= 3253: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 3254: $udom=$env{'user.domain'} unless (defined($udom)); 3255: $uname=$env{'user.name'} unless (defined($uname)); 3256: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); 3257: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/); 3258: } 3259: 3260: # ------------------------------------- Find the section of student in a course 3261: sub devalidate_getsection_cache { 3262: my ($udom,$unam,$courseid)=@_; 3263: my $hashid="$udom:$unam:$courseid"; 3264: &devalidate_cache_new('getsection',$hashid); 3265: } 3266: 3267: sub courseid_to_courseurl { 3268: my ($courseid) = @_; 3269: #already url style courseid 3270: return $courseid if ($courseid =~ m{^/}); 3271: 3272: if (exists($env{'course.'.$courseid.'.num'})) { 3273: my $cnum = $env{'course.'.$courseid.'.num'}; 3274: my $cdom = $env{'course.'.$courseid.'.domain'}; 3275: return "/$cdom/$cnum"; 3276: } 3277: 3278: my %courseinfo=&coursedescription($courseid); 3279: if (exists($courseinfo{'num'})) { 3280: return "/$courseinfo{'domain'}/$courseinfo{'num'}"; 3281: } 3282: 3283: return undef; 3284: } 3285: 3286: sub getsection { 3287: my ($udom,$unam,$courseid)=@_; 3288: my $cachetime=1800; 3289: 3290: my $hashid="$udom:$unam:$courseid"; 3291: my ($result,$cached)=&is_cached_new('getsection',$hashid); 3292: if (defined($cached)) { return $result; } 3293: 3294: my %Pending; 3295: my %Expired; 3296: # 3297: # Each role can either have not started yet (pending), be active, 3298: # or have expired. 3299: # 3300: # If there is an active role, we are done. 3301: # 3302: # If there is more than one role which has not started yet, 3303: # choose the one which will start sooner 3304: # If there is one role which has not started yet, return it. 3305: # 3306: # If there is more than one expired role, choose the one which ended last. 3307: # If there is a role which has expired, return it. 3308: # 3309: $courseid = &courseid_to_courseurl($courseid); 3310: my %roleshash = &dump('roles',$udom,$unam,$courseid); 3311: foreach my $key (keys(%roleshash)) { 3312: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/); 3313: my $section=$1; 3314: if ($key eq $courseid.'_st') { $section=''; } 3315: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key})); 3316: my $now=time; 3317: if (defined($end) && $end && ($now > $end)) { 3318: $Expired{$end}=$section; 3319: next; 3320: } 3321: if (defined($start) && $start && ($now < $start)) { 3322: $Pending{$start}=$section; 3323: next; 3324: } 3325: return &do_cache_new('getsection',$hashid,$section,$cachetime); 3326: } 3327: # 3328: # Presumedly there will be few matching roles from the above 3329: # loop and the sorting time will be negligible. 3330: if (scalar(keys(%Pending))) { 3331: my ($time) = sort {$a <=> $b} keys(%Pending); 3332: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime); 3333: } 3334: if (scalar(keys(%Expired))) { 3335: my @sorted = sort {$a <=> $b} keys(%Expired); 3336: my $time = pop(@sorted); 3337: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime); 3338: } 3339: return &do_cache_new('getsection',$hashid,'-1',$cachetime); 3340: } 3341: 3342: sub save_cache { 3343: &purge_remembered(); 3344: #&Apache::loncommon::validate_page(); 3345: undef(%env); 3346: undef($env_loaded); 3347: } 3348: 3349: my $to_remember=-1; 3350: my %remembered; 3351: my %accessed; 3352: my $kicks=0; 3353: my $hits=0; 3354: sub make_key { 3355: my ($name,$id) = @_; 3356: if (length($id) > 65 3357: && length(&escape($id)) > 200) { 3358: $id=length($id).':'.&Digest::MD5::md5_hex($id); 3359: } 3360: return &escape($name.':'.$id); 3361: } 3362: 3363: sub devalidate_cache_new { 3364: my ($name,$id,$debug) = @_; 3365: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); } 3366: my $remembered_id=$name.':'.$id; 3367: $id=&make_key($name,$id); 3368: $memcache->delete($id); 3369: delete($remembered{$remembered_id}); 3370: delete($accessed{$remembered_id}); 3371: } 3372: 3373: sub is_cached_new { 3374: my ($name,$id,$debug) = @_; 3375: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible 3376: if (exists($remembered{$remembered_id})) { 3377: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); } 3378: $accessed{$remembered_id}=[&gettimeofday()]; 3379: $hits++; 3380: return ($remembered{$remembered_id},1); 3381: } 3382: $id=&make_key($name,$id); 3383: my $value = $memcache->get($id); 3384: if (!(defined($value))) { 3385: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); } 3386: return (undef,undef); 3387: } 3388: if ($value eq '__undef__') { 3389: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); } 3390: $value=undef; 3391: } 3392: &make_room($remembered_id,$value,$debug); 3393: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); } 3394: return ($value,1); 3395: } 3396: 3397: sub do_cache_new { 3398: my ($name,$id,$value,$time,$debug) = @_; 3399: my $remembered_id=$name.':'.$id; 3400: $id=&make_key($name,$id); 3401: my $setvalue=$value; 3402: if (!defined($setvalue)) { 3403: $setvalue='__undef__'; 3404: } 3405: if (!defined($time) ) { 3406: $time=600; 3407: } 3408: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); } 3409: my $result = $memcache->set($id,$setvalue,$time); 3410: if (! $result) { 3411: &logthis("caching of id -> $id failed"); 3412: $memcache->disconnect_all(); 3413: } 3414: # need to make a copy of $value 3415: &make_room($remembered_id,$value,$debug); 3416: return $value; 3417: } 3418: 3419: sub make_room { 3420: my ($remembered_id,$value,$debug)=@_; 3421: 3422: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value) 3423: : $value; 3424: if ($to_remember<0) { return; } 3425: $accessed{$remembered_id}=[&gettimeofday()]; 3426: if (scalar(keys(%remembered)) <= $to_remember) { return; } 3427: my $to_kick; 3428: my $max_time=0; 3429: foreach my $other (keys(%accessed)) { 3430: if (&tv_interval($accessed{$other}) > $max_time) { 3431: $to_kick=$other; 3432: $max_time=&tv_interval($accessed{$other}); 3433: } 3434: } 3435: delete($remembered{$to_kick}); 3436: delete($accessed{$to_kick}); 3437: $kicks++; 3438: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); } 3439: return; 3440: } 3441: 3442: sub purge_remembered { 3443: #&logthis("Tossing ".scalar(keys(%remembered))); 3444: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered)))); 3445: undef(%remembered); 3446: undef(%accessed); 3447: } 3448: # ------------------------------------- Read an entry from a user's environment 3449: 3450: sub userenvironment { 3451: my ($udom,$unam,@what)=@_; 3452: my $items; 3453: foreach my $item (@what) { 3454: $items.=&escape($item).'&'; 3455: } 3456: $items=~s/\&$//; 3457: my %returnhash=(); 3458: my $uhome = &homeserver($unam,$udom); 3459: unless ($uhome eq 'no_host') { 3460: my @answer=split(/\&/, 3461: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome)); 3462: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) { 3463: return %returnhash; 3464: } 3465: my $i; 3466: for ($i=0;$i<=$#what;$i++) { 3467: $returnhash{$what[$i]}=&unescape($answer[$i]); 3468: } 3469: } 3470: return %returnhash; 3471: } 3472: 3473: # ---------------------------------------------------------- Get a studentphoto 3474: sub studentphoto { 3475: my ($udom,$unam,$ext) = @_; 3476: my $home=&homeserver($unam,$udom); 3477: if (defined($env{'request.course.id'})) { 3478: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) { 3479: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) { 3480: return(&retrievestudentphoto($udom,$unam,$ext)); 3481: } else { 3482: my ($result,$perm_reqd)= 3483: &auto_photo_permission($unam,$udom); 3484: if ($result eq 'ok') { 3485: if (!($perm_reqd eq 'yes')) { 3486: return(&retrievestudentphoto($udom,$unam,$ext)); 3487: } 3488: } 3489: } 3490: } 3491: } else { 3492: my ($result,$perm_reqd) = 3493: &auto_photo_permission($unam,$udom); 3494: if ($result eq 'ok') { 3495: if (!($perm_reqd eq 'yes')) { 3496: return(&retrievestudentphoto($udom,$unam,$ext)); 3497: } 3498: } 3499: } 3500: return '/adm/lonKaputt/lonlogo_broken.gif'; 3501: } 3502: 3503: sub retrievestudentphoto { 3504: my ($udom,$unam,$ext,$type) = @_; 3505: my $home=&homeserver($unam,$udom); 3506: my $ret=&reply("studentphoto:$udom:$unam:$ext:$type",$home); 3507: if ($ret eq 'ok') { 3508: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext"; 3509: if ($type eq 'thumbnail') { 3510: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext"; 3511: } 3512: my $tokenurl=&tokenwrapper($url); 3513: return $tokenurl; 3514: } else { 3515: if ($type eq 'thumbnail') { 3516: return '/adm/lonKaputt/genericstudent_tn.gif'; 3517: } else { 3518: return '/adm/lonKaputt/lonlogo_broken.gif'; 3519: } 3520: } 3521: } 3522: 3523: # -------------------------------------------------------------------- New chat 3524: 3525: sub chatsend { 3526: my ($newentry,$anon,$group)=@_; 3527: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'}; 3528: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 3529: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'}; 3530: &reply('chatsend:'.$cdom.':'.$cnum.':'. 3531: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'. 3532: &escape($newentry)).':'.$group,$chome); 3533: } 3534: 3535: # ------------------------------------------ Find current version of a resource 3536: 3537: sub getversion { 3538: my $fname=&clutter(shift); 3539: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; } 3540: return &currentversion(&filelocation('',$fname)); 3541: } 3542: 3543: sub currentversion { 3544: my $fname=shift; 3545: my $author=$fname; 3546: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3547: my ($udom,$uname)=split(/\//,$author); 3548: my $home=&homeserver($uname,$udom); 3549: if ($home eq 'no_host') { 3550: return -1; 3551: } 3552: my $answer=&reply("currentversion:$fname",$home); 3553: if (($answer eq 'con_lost') || ($answer eq 'rejected')) { 3554: return -1; 3555: } 3556: return $answer; 3557: } 3558: 3559: # 3560: # Return special version number of resource if set by override, empty otherwise 3561: # 3562: sub usedversion { 3563: my $fname=shift; 3564: unless ($fname) { $fname=$env{'request.uri'}; } 3565: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/); 3566: if ($urlversion) { return $urlversion; } 3567: return ''; 3568: } 3569: 3570: # ----------------------------- Subscribe to a resource, return URL if possible 3571: 3572: sub subscribe { 3573: my $fname=shift; 3574: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; } 3575: $fname=~s/[\n\r]//g; 3576: my $author=$fname; 3577: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3578: my ($udom,$uname)=split(/\//,$author); 3579: my $home=homeserver($uname,$udom); 3580: if ($home eq 'no_host') { 3581: return 'not_found'; 3582: } 3583: my $answer=reply("sub:$fname",$home); 3584: if (($answer eq 'con_lost') || ($answer eq 'rejected')) { 3585: $answer.=' by '.$home; 3586: } 3587: return $answer; 3588: } 3589: 3590: # -------------------------------------------------------------- Replicate file 3591: 3592: sub repcopy { 3593: my $filename=shift; 3594: $filename=~s/\/+/\//g; 3595: my $londocroot = $perlvar{'lonDocRoot'}; 3596: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; } 3597: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } 3598: if ($filename=~m{^\Q$londocroot/userfiles/\E} or 3599: $filename=~m{^/*(uploaded|editupload)/}) { 3600: return &repcopy_userfile($filename); 3601: } 3602: $filename=~s/[\n\r]//g; 3603: my $transname="$filename.in.transfer"; 3604: # FIXME: this should flock 3605: if ((-e $filename) || (-e $transname)) { return 'ok'; } 3606: my $remoteurl=subscribe($filename); 3607: if ($remoteurl =~ /^con_lost by/) { 3608: &logthis("Subscribe returned $remoteurl: $filename"); 3609: return 'unavailable'; 3610: } elsif ($remoteurl eq 'not_found') { 3611: #&logthis("Subscribe returned not_found: $filename"); 3612: return 'not_found'; 3613: } elsif ($remoteurl =~ /^rejected by/) { 3614: &logthis("Subscribe returned $remoteurl: $filename"); 3615: return 'forbidden'; 3616: } elsif ($remoteurl eq 'directory') { 3617: return 'ok'; 3618: } else { 3619: my $author=$filename; 3620: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3621: my ($udom,$uname)=split(/\//,$author); 3622: my $home=homeserver($uname,$udom); 3623: unless ($home eq $perlvar{'lonHostID'}) { 3624: my @parts=split(/\//,$filename); 3625: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]"; 3626: if ($path ne "$londocroot/res") { 3627: &logthis("Malconfiguration for replication: $filename"); 3628: return 'bad_request'; 3629: } 3630: my $count; 3631: for ($count=5;$count<$#parts;$count++) { 3632: $path.="/$parts[$count]"; 3633: if ((-e $path)!=1) { 3634: mkdir($path,0777); 3635: } 3636: } 3637: my $request=new HTTP::Request('GET',"$remoteurl"); 3638: my $response; 3639: if ($remoteurl =~ m{/raw/}) { 3640: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1); 3641: } else { 3642: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1); 3643: } 3644: if ($response->is_error()) { 3645: unlink($transname); 3646: my $message=$response->status_line; 3647: &logthis("WARNING:" 3648: ." LWP get: $message: $filename"); 3649: return 'unavailable'; 3650: } else { 3651: if ($remoteurl!~/\.meta$/) { 3652: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); 3653: my $mresponse; 3654: if ($remoteurl =~ m{/raw/}) { 3655: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1); 3656: } else { 3657: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1); 3658: } 3659: if ($mresponse->is_error()) { 3660: unlink($filename.'.meta'); 3661: &logthis( 3662: "INFO: No metadata: $filename"); 3663: } 3664: } 3665: rename($transname,$filename); 3666: return 'ok'; 3667: } 3668: } 3669: } 3670: } 3671: 3672: # ------------------------------------------------- Unsubscribe from a resource 3673: 3674: sub unsubscribe { 3675: my ($fname) = @_; 3676: my $answer; 3677: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return $answer; } 3678: $fname=~s/[\n\r]//g; 3679: my $author=$fname; 3680: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3681: my ($udom,$uname)=split(/\//,$author); 3682: my $home=homeserver($uname,$udom); 3683: if ($home eq 'no_host') { 3684: $answer = 'no_host'; 3685: } elsif (grep { $_ eq $home } &current_machine_ids()) { 3686: $answer = 'home'; 3687: } else { 3688: my $defdom = $perlvar{'lonDefDomain'}; 3689: if (&will_trust('content',$defdom,$udom)) { 3690: $answer = reply("unsub:$fname",$home); 3691: } else { 3692: $answer = 'untrusted'; 3693: } 3694: } 3695: return $answer; 3696: } 3697: 3698: # ------------------------------------------------ Get server side include body 3699: sub ssi_body { 3700: my ($filelink,%form)=@_; 3701: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) { 3702: $form{'LONCAPA_INTERNAL_no_discussion'}='true'; 3703: } 3704: my $output=''; 3705: my $response; 3706: if ($filelink=~/^https?\:/) { 3707: ($output,$response)=&externalssi($filelink); 3708: } else { 3709: $filelink .= $filelink=~/\?/ ? '&' : '?'; 3710: $filelink .= 'inhibitmenu=yes'; 3711: ($output,$response)=&ssi($filelink,%form); 3712: } 3713: $output=~s|//(\s*)?\s||gs; 3714: $output=~s/^.*?\<body[^\>]*\>//si; 3715: $output=~s/\<\/body\s*\>.*?$//si; 3716: if (wantarray) { 3717: return ($output, $response); 3718: } else { 3719: return $output; 3720: } 3721: } 3722: 3723: # --------------------------------------------------------- Server Side Include 3724: 3725: sub absolute_url { 3726: my ($host_name,$unalias,$keep_proto) = @_; 3727: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://'); 3728: if ($host_name eq '') { 3729: $host_name = $ENV{'SERVER_NAME'}; 3730: } 3731: if ($unalias) { 3732: my $alias = &get_proxy_alias(); 3733: if ($alias eq $host_name) { 3734: my $lonhost = $perlvar{'lonHostID'}; 3735: my $hostname = &hostname($lonhost); 3736: my $lcproto; 3737: if (($keep_proto) || ($hostname eq '')) { 3738: $lcproto = $protocol; 3739: } else { 3740: $lcproto = $protocol{$lonhost}; 3741: $lcproto = 'http' if ($lcproto ne 'https'); 3742: $lcproto .= '://'; 3743: } 3744: unless ($hostname eq '') { 3745: return $lcproto.$hostname; 3746: } 3747: } 3748: } 3749: return $protocol.$host_name; 3750: } 3751: 3752: # 3753: # Server side include. 3754: # Parameters: 3755: # fn Possibly encrypted resource name/id. 3756: # form Hash that describes how the rendering should be done 3757: # and other things. 3758: # Returns: 3759: # Scalar context: The content of the response. 3760: # Array context: 2 element list of the content and the full response object. 3761: # 3762: sub ssi { 3763: 3764: my ($fn,%form)=@_; 3765: my ($host,$request,$response); 3766: $host = &absolute_url('',1); 3767: 3768: $form{'no_update_last_known'}=1; 3769: &Apache::lonenc::check_encrypt(\$fn); 3770: if (%form) { 3771: $request=new HTTP::Request('POST',$host.$fn); 3772: $request->content(join('&',map { 3773: my $name = escape($_); 3774: "$name=" . ( ref($form{$_}) eq 'ARRAY' 3775: ? join("&$name=", map {escape($_) } @{$form{$_}}) 3776: : &escape($form{$_}) ); 3777: } keys(%form))); 3778: } else { 3779: $request=new HTTP::Request('GET',$host.$fn); 3780: } 3781: 3782: $request->header(Cookie => $ENV{'HTTP_COOKIE'}); 3783: my $lonhost = $perlvar{'lonHostID'}; 3784: my $islocal; 3785: if (($env{'request.course.id'}) && 3786: ($form{'grade_courseid'} eq $env{'request.course.id'}) && 3787: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') && 3788: ($form{'grade_symb'} ne '') && 3789: (&allowed('mgr',$env{'request.course.id'}. 3790: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) { 3791: $islocal = 1; 3792: } 3793: $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar, 3794: '','','',$islocal); 3795: 3796: if (wantarray) { 3797: return ($response->content, $response); 3798: } else { 3799: return $response->content; 3800: } 3801: } 3802: 3803: sub externalssi { 3804: my ($url)=@_; 3805: my $request=new HTTP::Request('GET',$url); 3806: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar); 3807: if (wantarray) { 3808: return ($response->content, $response); 3809: } else { 3810: return $response->content; 3811: } 3812: } 3813: 3814: 3815: # If the local copy of a replicated resource is outdated, trigger a 3816: # connection from the homeserver to flush the delayed queue. If no update 3817: # happens, remove local copies of outdated resource (and corresponding 3818: # metadata file). 3819: 3820: sub remove_stale_resfile { 3821: my ($url) = @_; 3822: my $removed; 3823: if ($url=~m{^/res/($match_domain)/($match_username)/}) { 3824: my $audom = $1; 3825: my $auname = $2; 3826: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) { 3827: my $homeserver = &homeserver($auname,$audom); 3828: unless (($homeserver eq 'no_host') || 3829: (grep { $_ eq $homeserver } &current_machine_ids())) { 3830: my $fname = &filelocation('',$url); 3831: if (-e $fname) { 3832: my $hostname = &hostname($homeserver); 3833: if ($hostname) { 3834: my $protocol = $protocol{$homeserver}; 3835: $protocol = 'http' if ($protocol ne 'https'); 3836: my $uri = &declutter($url); 3837: my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri); 3838: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1); 3839: if ($response->is_success()) { 3840: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') ); 3841: my $locmodtime = (stat($fname))[9]; 3842: if ($locmodtime < $remmodtime) { 3843: my $stale; 3844: my $answer = &reply('pong',$homeserver); 3845: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) { 3846: sleep(0.2); 3847: $locmodtime = (stat($fname))[9]; 3848: if ($locmodtime < $remmodtime) { 3849: my $posstransfer = $fname.'.in.transfer'; 3850: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) { 3851: $removed = 1; 3852: } else { 3853: $stale = 1; 3854: } 3855: } else { 3856: $removed = 1; 3857: } 3858: } else { 3859: $stale = 1; 3860: } 3861: if ($stale) { 3862: if (unlink($fname)) { 3863: if ($uri!~/\.meta$/) { 3864: if (-e $fname.'.meta') { 3865: unlink($fname.'.meta'); 3866: } 3867: } 3868: my $unsubresult = &unsubscribe($fname); 3869: unless ($unsubresult eq 'ok') { 3870: &logthis("no unsub of $fname from $homeserver, reason: $unsubresult"); 3871: } 3872: $removed = 1; 3873: } 3874: } 3875: } 3876: } 3877: } 3878: } 3879: } 3880: } 3881: } 3882: return $removed; 3883: } 3884: 3885: # -------------------------------- Allow a /uploaded/ URI to be vouched for 3886: 3887: sub allowuploaded { 3888: my ($srcurl,$url)=@_; 3889: $url=&clutter(&declutter($url)); 3890: my $dir=$url; 3891: $dir=~s/\/[^\/]+$//; 3892: my %httpref=(); 3893: my $httpurl=&hreflocation('',$url); 3894: $httpref{'httpref.'.$httpurl}=$srcurl; 3895: &Apache::lonnet::appenv(\%httpref); 3896: } 3897: 3898: # 3899: # Determine if the current user should be able to edit a particular resource, 3900: # when viewing in course context. 3901: # (a) When viewing resource used to determine if "Edit" item is included in 3902: # Functions. 3903: # (b) When displaying folder contents in course editor, used to determine if 3904: # "Edit" link will be displayed alongside resource. 3905: # 3906: # input: six args -- filename (decluttered), course number, course domain, 3907: # url, symb (if registered) and group (if this is a group 3908: # item -- e.g., bulletin board, group page etc.). 3909: # output: array of five scalars -- 3910: # $cfile -- url for file editing if editable on current server 3911: # $home -- homeserver of resource (i.e., for author if published, 3912: # or course if uploaded.). 3913: # $switchserver -- 1 if server switch will be needed. 3914: # $forceedit -- 1 if icon/link should be to go to edit mode 3915: # $forceview -- 1 if icon/link should be to go to view mode 3916: # 3917: 3918: sub can_edit_resource { 3919: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_; 3920: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse); 3921: # 3922: # For aboutme pages user can only edit his/her own. 3923: # 3924: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) { 3925: my ($sdom,$sname) = ($1,$2); 3926: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) { 3927: $home = $env{'user.home'}; 3928: $cfile = $resurl; 3929: if ($env{'form.forceedit'}) { 3930: $forceview = 1; 3931: } else { 3932: $forceedit = 1; 3933: } 3934: return ($cfile,$home,$switchserver,$forceedit,$forceview); 3935: } else { 3936: return; 3937: } 3938: } 3939: 3940: # 3941: # For /adm/viewcoauthors can only edit if author or co-author who is manager. 3942: # 3943: 3944: if (($resurl eq '/adm/viewcoauthors') && ($cnum ne '') && ($cdom ne '')) { 3945: if (((&allowed('cca',"$cdom/$cnum")) || 3946: (&allowed('caa',"$cdom/$cnum"))) || 3947: ((&allowed('vca',"$cdom/$cnum") || 3948: &allowed('vaa',"$cdom/$cnum")) && 3949: ($env{"environment.internal.manager./$cdom/$cnum"}))) { 3950: $home = $env{'user.home'}; 3951: $cfile = $resurl; 3952: if ($env{'form.forceedit'}) { 3953: $forceview = 1; 3954: } else { 3955: $forceedit = 1; 3956: } 3957: return ($cfile,$home,$switchserver,$forceedit,$forceview); 3958: } else { 3959: return; 3960: } 3961: } 3962: 3963: if ($env{'request.course.id'}) { 3964: my $crsedit = &allowed('mdc',$env{'request.course.id'}); 3965: if ($group ne '') { 3966: # if this is a group homepage or group bulletin board, check group privs 3967: my $allowed = 0; 3968: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) { 3969: if ((&allowed('mdg',$env{'request.course.id'}. 3970: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || 3971: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) { 3972: $allowed = 1; 3973: } 3974: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) { 3975: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || 3976: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) { 3977: $allowed = 1; 3978: } 3979: } 3980: if ($allowed) { 3981: $home=&homeserver($cnum,$cdom); 3982: if ($env{'form.forceedit'}) { 3983: $forceview = 1; 3984: } else { 3985: $forceedit = 1; 3986: } 3987: $cfile = $resurl; 3988: } else { 3989: return; 3990: } 3991: } else { 3992: if ($resurl =~ m{^/?adm/viewclasslist$}) { 3993: unless (&allowed('opa',$env{'request.course.id'})) { 3994: return; 3995: } 3996: } elsif (!$crsedit) { 3997: if ($env{'request.role'} =~ m{^st\./$cdom/$cnum}) { 3998: # 3999: # No edit allowed where CC has switched to student role. 4000: # 4001: return; 4002: } elsif (($resurl !~ m{^/res/$match_domain/$match_username/}) || 4003: ($resurl =~ m{^/res/lib/templates/})) { 4004: return; 4005: } 4006: } 4007: } 4008: } 4009: 4010: if ($file ne '') { 4011: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) { 4012: if (&is_course_upload($file,$cnum,$cdom)) { 4013: $uploaded = 1; 4014: $incourse = 1; 4015: if ($file =~/\.(htm|html|css|js|txt)$/) { 4016: $cfile = &hreflocation('',$file); 4017: if ($env{'form.forceedit'}) { 4018: $forceview = 1; 4019: } else { 4020: $forceedit = 1; 4021: } 4022: } 4023: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) { 4024: $incourse = 1; 4025: if ($env{'form.forceedit'}) { 4026: $forceview = 1; 4027: } else { 4028: $forceedit = 1; 4029: } 4030: $cfile = $resurl; 4031: } elsif (($resurl ne '') && (&is_on_map($resurl))) { 4032: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) { 4033: $incourse = 1; 4034: if ($env{'form.forceedit'}) { 4035: $forceview = 1; 4036: } else { 4037: $forceedit = 1; 4038: } 4039: $cfile = $resurl; 4040: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') { 4041: $incourse = 1; 4042: $cfile = $resurl.'/smpedit'; 4043: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) { 4044: $incourse = 1; 4045: if ($env{'form.forceedit'}) { 4046: $forceview = 1; 4047: } else { 4048: $forceedit = 1; 4049: } 4050: $cfile = $resurl; 4051: } elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) { 4052: my ($map,$id,$res) = &decode_symb($symb); 4053: if ($map =~ /\.page$/) { 4054: $incourse = 1; 4055: if ($env{'form.forceedit'}) { 4056: $forceview = 1; 4057: $cfile = $map; 4058: } else { 4059: $forceedit = 1; 4060: $cfile = '/adm/wrapper'.$resurl; 4061: } 4062: } 4063: } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) { 4064: $incourse = 1; 4065: if ($env{'form.forceedit'}) { 4066: $forceview = 1; 4067: } else { 4068: $forceedit = 1; 4069: } 4070: $cfile = $resurl; 4071: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { 4072: $incourse = 1; 4073: if ($env{'form.forceedit'}) { 4074: $forceview = 1; 4075: } else { 4076: $forceedit = 1; 4077: } 4078: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); 4079: } 4080: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') { 4081: my $template = '/res/lib/templates/simpleproblem.problem'; 4082: if (&is_on_map($template)) { 4083: $incourse = 1; 4084: $forceview = 1; 4085: $cfile = $template; 4086: } 4087: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) { 4088: $incourse = 1; 4089: if ($env{'form.forceedit'}) { 4090: $forceview = 1; 4091: } else { 4092: $forceedit = 1; 4093: } 4094: $cfile = $resurl; 4095: } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) { 4096: $incourse = 1; 4097: if ($env{'form.forceedit'}) { 4098: $forceview = 1; 4099: } else { 4100: $forceedit = 1; 4101: } 4102: $cfile = $resurl; 4103: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) { 4104: $incourse = 1; 4105: $forceview = 1; 4106: if ($symb) { 4107: my ($map,$id,$res)=&decode_symb($symb); 4108: $env{'request.symb'} = $symb; 4109: $cfile = &clutter($res); 4110: } else { 4111: $cfile = $env{'form.suppurl'}; 4112: my $escfile = &unescape($cfile); 4113: if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) { 4114: $cfile = '/adm/wrapper'.$escfile; 4115: } else { 4116: $escfile =~ s{^http://}{}; 4117: $cfile = &escape("/adm/wrapper/ext/$escfile"); 4118: } 4119: } 4120: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { 4121: if ($env{'form.forceedit'}) { 4122: $forceview = 1; 4123: } else { 4124: $forceedit = 1; 4125: } 4126: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); 4127: } 4128: } 4129: if ($uploaded || $incourse) { 4130: $home=&homeserver($cnum,$cdom); 4131: } elsif ($file !~ m{/$}) { 4132: $file=~s{^(priv/$match_domain/$match_username)}{/$1}; 4133: $file=~s{^($match_domain/$match_username)}{/priv/$1}; 4134: # Check that the user has permission to edit this resource 4135: my $setpriv = 1; 4136: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv); 4137: if (defined($cfudom)) { 4138: $home=&homeserver($cfuname,$cfudom); 4139: $cfile=$file; 4140: } 4141: } 4142: if (($cfile ne '') && (!$incourse || $uploaded) && 4143: (($home ne '') && ($home ne 'no_host'))) { 4144: my @ids=&current_machine_ids(); 4145: unless (grep(/^\Q$home\E$/,@ids)) { 4146: $switchserver=1; 4147: } 4148: } 4149: } 4150: return ($cfile,$home,$switchserver,$forceedit,$forceview); 4151: } 4152: 4153: sub is_course_upload { 4154: my ($file,$cnum,$cdom) = @_; 4155: my $uploadpath = &LONCAPA::propath($cdom,$cnum); 4156: $uploadpath =~ s{^\/}{}; 4157: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) || 4158: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) { 4159: return 1; 4160: } 4161: return; 4162: } 4163: 4164: sub in_course { 4165: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_; 4166: if ($hideprivileged) { 4167: my $skipuser; 4168: my %coursehash = &coursedescription($cdom.'_'.$cnum); 4169: my @possdoms = ($cdom); 4170: if ($coursehash{'checkforpriv'}) { 4171: push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); 4172: } 4173: if (&privileged($uname,$udom,\@possdoms)) { 4174: $skipuser = 1; 4175: if ($coursehash{'nothideprivileged'}) { 4176: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 4177: my $user; 4178: if ($item =~ /:/) { 4179: $user = $item; 4180: } else { 4181: $user = join(':',split(/[\@]/,$item)); 4182: } 4183: if ($user eq $uname.':'.$udom) { 4184: undef($skipuser); 4185: last; 4186: } 4187: } 4188: } 4189: if ($skipuser) { 4190: return 0; 4191: } 4192: } 4193: } 4194: $type ||= 'any'; 4195: if (!defined($cdom) || !defined($cnum)) { 4196: my $cid = $env{'request.course.id'}; 4197: $cdom = $env{'course.'.$cid.'.domain'}; 4198: $cnum = $env{'course.'.$cid.'.num'}; 4199: } 4200: my $typesref; 4201: if (($type eq 'any') || ($type eq 'all')) { 4202: $typesref = ['active','previous','future']; 4203: } elsif ($type eq 'previous' || $type eq 'future') { 4204: $typesref = [$type]; 4205: } 4206: my %roles = &get_my_roles($uname,$udom,'userroles', 4207: $typesref,undef,[$cdom]); 4208: my ($tmp) = keys(%roles); 4209: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i); 4210: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles)); 4211: if (@course_roles > 0) { 4212: return 1; 4213: } 4214: return 0; 4215: } 4216: 4217: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course 4218: # input: action, courseID, current domain, intended 4219: # path to file, source of file, instruction to parse file for objects, 4220: # ref to hash for embedded objects, 4221: # ref to hash for codebase of java objects. 4222: # reference to scalar to accommodate mime type determined 4223: # from File::MMagic if $parser = parse. 4224: # 4225: # output: url to file (if action was uploaddoc), 4226: # ok if successful, or diagnostic message otherwise (if action was propagate or copy) 4227: # 4228: # Allows directory structure to be used within lonUsers/../userfiles/ for a 4229: # course. 4230: # 4231: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 4232: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in 4233: # course's home server. 4234: # 4235: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will 4236: # be copied from $source (current location) to 4237: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 4238: # and will then be copied to 4239: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in 4240: # course's home server. 4241: # 4242: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 4243: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to 4244: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 4245: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file 4246: # in course's home server. 4247: # 4248: 4249: sub process_coursefile { 4250: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase, 4251: $mimetype)=@_; 4252: my $fetchresult; 4253: my $home=&homeserver($docuname,$docudom); 4254: if ($action eq 'propagate') { 4255: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 4256: $home); 4257: } else { 4258: my $fpath = ''; 4259: my $fname = $file; 4260: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); 4261: $fpath=$docudom.'/'.$docuname.'/'.$fpath; 4262: my $filepath = &build_filepath($fpath); 4263: if ($action eq 'copy') { 4264: if ($source eq '') { 4265: $fetchresult = 'no source file'; 4266: return $fetchresult; 4267: } else { 4268: my $destination = $filepath.'/'.$fname; 4269: rename($source,$destination); 4270: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 4271: $home); 4272: } 4273: } elsif ($action eq 'uploaddoc') { 4274: open(my $fh,'>',$filepath.'/'.$fname); 4275: print $fh $env{'form.'.$source}; 4276: close($fh); 4277: if ($parser eq 'parse') { 4278: my $mm = new File::MMagic; 4279: my $type = $mm->checktype_filename($filepath.'/'.$fname); 4280: if ($type eq 'text/html') { 4281: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase); 4282: unless ($parse_result eq 'ok') { 4283: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result); 4284: } 4285: } 4286: if (ref($mimetype)) { 4287: $$mimetype = $type; 4288: } 4289: } 4290: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 4291: $home); 4292: if ($fetchresult eq 'ok') { 4293: return '/uploaded/'.$fpath.'/'.$fname; 4294: } else { 4295: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 4296: ' to host '.$home.': '.$fetchresult); 4297: return '/adm/notfound.html'; 4298: } 4299: } 4300: } 4301: unless ( $fetchresult eq 'ok') { 4302: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 4303: ' to host '.$home.': '.$fetchresult); 4304: } 4305: return $fetchresult; 4306: } 4307: 4308: sub build_filepath { 4309: my ($fpath) = @_; 4310: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles'; 4311: unless ($fpath eq '') { 4312: my @parts=split('/',$fpath); 4313: foreach my $part (@parts) { 4314: $filepath.= '/'.$part; 4315: if ((-e $filepath)!=1) { 4316: mkdir($filepath,0777); 4317: } 4318: } 4319: } 4320: return $filepath; 4321: } 4322: 4323: sub store_edited_file { 4324: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_; 4325: my $file = $primary_url; 4326: $file =~ s#^/uploaded/$docudom/$docuname/##; 4327: my $fpath = ''; 4328: my $fname = $file; 4329: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); 4330: $fpath=$docudom.'/'.$docuname.'/'.$fpath; 4331: my $filepath = &build_filepath($fpath); 4332: open(my $fh,'>',$filepath.'/'.$fname); 4333: print $fh $content; 4334: close($fh); 4335: my $home=&homeserver($docuname,$docudom); 4336: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 4337: $home); 4338: if ($$fetchresult eq 'ok') { 4339: return '/uploaded/'.$fpath.'/'.$fname; 4340: } else { 4341: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 4342: ' to host '.$home.': '.$$fetchresult); 4343: return '/adm/notfound.html'; 4344: } 4345: } 4346: 4347: sub clean_filename { 4348: my ($fname,$args)=@_; 4349: # Replace Windows backslashes by forward slashes 4350: $fname=~s/\\/\//g; 4351: if (!$args->{'keep_path'}) { 4352: # Get rid of everything but the actual filename 4353: $fname=~s/^.*\/([^\/]+)$/$1/; 4354: } 4355: # Replace spaces by underscores 4356: $fname=~s/\s+/\_/g; 4357: # Transliterate non-ascii text to ascii 4358: my $lang = &Apache::lonlocal::current_language(); 4359: $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang); 4360: # Replace all other weird characters by nothing 4361: $fname=~s{[^/\w\.\-]}{}g; 4362: # Replace all .\d. sequences with _\d. so they no longer look like version 4363: # numbers 4364: $fname=~s/\.(\d+)(?=\.)/_$1/g; 4365: # Replace three or more adjacent underscores with one for consistency 4366: # with loncfile::filename_check() so complete url can be extracted by 4367: # lonnet::decode_symb() 4368: $fname=~s/_{3,}/_/g; 4369: return $fname; 4370: } 4371: 4372: # This Function checks if an Image's dimensions exceed either $resizewidth (width) 4373: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an 4374: # image with the same aspect ratio as the original, but with dimensions which do 4375: # not exceed $resizewidth and $resizeheight. 4376: 4377: sub resizeImage { 4378: my ($img_path,$resizewidth,$resizeheight) = @_; 4379: my $ima = Image::Magick->new; 4380: my $resized; 4381: if (-e $img_path) { 4382: $ima->Read($img_path); 4383: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) { 4384: my $width = $ima->Get('width'); 4385: my $height = $ima->Get('height'); 4386: if ($width > $resizewidth) { 4387: my $factor = $width/$resizewidth; 4388: my $newheight = $height/$factor; 4389: $ima->Scale(width=>$resizewidth,height=>$newheight); 4390: $resized = 1; 4391: } 4392: } 4393: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) { 4394: my $width = $ima->Get('width'); 4395: my $height = $ima->Get('height'); 4396: if ($height > $resizeheight) { 4397: my $factor = $height/$resizeheight; 4398: my $newwidth = $width/$factor; 4399: $ima->Scale(width=>$newwidth,height=>$resizeheight); 4400: $resized = 1; 4401: } 4402: } 4403: if ($resized) { 4404: $ima->Write($img_path); 4405: } 4406: } 4407: return; 4408: } 4409: 4410: # --------------- Take an uploaded file and put it into the userfiles directory 4411: # input: $formname - the contents of the file are in $env{"form.$formname"} 4412: # the desired filename is in $env{"form.$formname.filename"} 4413: # $context - possible values: coursedoc, existingfile, overwrite, 4414: # canceloverwrite, scantron, toollogo or ''. 4415: # if 'coursedoc': upload to the current course 4416: # if 'existingfile': write file to tmp/overwrites directory 4417: # if 'canceloverwrite': delete file written to tmp/overwrites directory 4418: # $context is passed as argument to &finishuserfileupload 4419: # $subdir - directory in userfile to store the file into 4420: # $parser - instruction to parse file for objects ($parser = parse) or 4421: # if context is 'scantron', $parser is hashref of csv column mapping 4422: # (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3, 4423: # Section => 4, CODE => 5, FirstQuestion => 9 }). 4424: # $allfiles - reference to hash for embedded objects 4425: # $codebase - reference to hash for codebase of java objects 4426: # $destuname - username for permanent storage of uploaded file 4427: # $destudom - domain for permanaent storage of uploaded file 4428: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image 4429: # $thumbheight - height (pixels) of thumbnail to make for uploaded image 4430: # $resizewidth - width (pixels) to which to resize uploaded image 4431: # $resizeheight - height (pixels) to which to resize uploaded image 4432: # $mimetype - reference to scalar to accommodate mime type determined 4433: # from File::MMagic. 4434: # 4435: # output: url of file in userspace, or error: <message> 4436: # or /adm/notfound.html if failure to upload occurse 4437: 4438: sub userfileupload { 4439: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname, 4440: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_; 4441: if (!defined($subdir)) { $subdir='unknown'; } 4442: my $fname=$env{'form.'.$formname.'.filename'}; 4443: $fname=&clean_filename($fname); 4444: # See if there is anything left 4445: unless ($fname) { return 'error: no uploaded file'; } 4446: # If filename now begins with a . prepend unix timestamp _ milliseconds 4447: if ($fname =~ /^\./) { 4448: my ($s,$usec) = &gettimeofday(); 4449: while (length($usec) < 6) { 4450: $usec = '0'.$usec; 4451: } 4452: $fname = $s.'_'.substr($usec,0,3).$fname; 4453: } 4454: # Files uploaded to help request form, or uploaded to "create course" page are handled differently 4455: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) || 4456: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) || 4457: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) { 4458: my $now = time; 4459: my $filepath; 4460: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { 4461: $filepath = 'tmp/helprequests/'.$now; 4462: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { 4463: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}. 4464: '_'.$env{'user.domain'}.'/pending'; 4465: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) { 4466: my ($docuname,$docudom); 4467: if ($destudom =~ /^$match_domain$/) { 4468: $docudom = $destudom; 4469: } else { 4470: $docudom = $env{'user.domain'}; 4471: } 4472: if ($destuname =~ /^$match_username$/) { 4473: $docuname = $destuname; 4474: } else { 4475: $docuname = $env{'user.name'}; 4476: } 4477: if (exists($env{'form.group'})) { 4478: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4479: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4480: } 4481: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir; 4482: if ($context eq 'canceloverwrite') { 4483: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname; 4484: if (-e $tempfile) { 4485: my @info = stat($tempfile); 4486: if ($info[9] eq $env{'form.timestamp'}) { 4487: unlink($tempfile); 4488: } 4489: } 4490: return; 4491: } 4492: } 4493: # Create the directory if not present 4494: my @parts=split(/\//,$filepath); 4495: my $fullpath = $perlvar{'lonDaemons'}; 4496: for (my $i=0;$i<@parts;$i++) { 4497: $fullpath .= '/'.$parts[$i]; 4498: if ((-e $fullpath)!=1) { 4499: mkdir($fullpath,0777); 4500: } 4501: } 4502: open(my $fh,'>',$fullpath.'/'.$fname); 4503: print $fh $env{'form.'.$formname}; 4504: close($fh); 4505: if ($context eq 'existingfile') { 4506: my @info = stat($fullpath.'/'.$fname); 4507: return ($fullpath.'/'.$fname,$info[9]); 4508: } else { 4509: return $fullpath.'/'.$fname; 4510: } 4511: } 4512: if ($subdir eq 'scantron') { 4513: $fname = 'scantron_orig_'.$fname; 4514: } else { 4515: $fname="$subdir/$fname"; 4516: } 4517: if ($context eq 'coursedoc') { 4518: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4519: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4520: if ($env{'form.folder'} =~ m/^(default|supplemental)/) { 4521: return &finishuserfileupload($docuname,$docudom, 4522: $formname,$fname,$parser,$allfiles, 4523: $codebase,$thumbwidth,$thumbheight, 4524: $resizewidth,$resizeheight,$context,$mimetype); 4525: } else { 4526: if ($env{'form.folder'}) { 4527: $fname=$env{'form.folder'}.'/'.$fname; 4528: } 4529: return &process_coursefile('uploaddoc',$docuname,$docudom, 4530: $fname,$formname,$parser, 4531: $allfiles,$codebase,$mimetype); 4532: } 4533: } elsif (defined($destuname)) { 4534: my $docuname=$destuname; 4535: my $docudom=$destudom; 4536: return &finishuserfileupload($docuname,$docudom,$formname,$fname, 4537: $parser,$allfiles,$codebase, 4538: $thumbwidth,$thumbheight, 4539: $resizewidth,$resizeheight,$context,$mimetype); 4540: } else { 4541: my $docuname=$env{'user.name'}; 4542: my $docudom=$env{'user.domain'}; 4543: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) { 4544: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4545: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4546: } 4547: return &finishuserfileupload($docuname,$docudom,$formname,$fname, 4548: $parser,$allfiles,$codebase, 4549: $thumbwidth,$thumbheight, 4550: $resizewidth,$resizeheight,$context,$mimetype); 4551: } 4552: } 4553: 4554: sub finishuserfileupload { 4555: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase, 4556: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_; 4557: my $path=$docudom.'/'.$docuname.'/'; 4558: my $filepath=$perlvar{'lonDocRoot'}; 4559: 4560: my ($fnamepath,$file,$fetchthumb); 4561: $file=$fname; 4562: if ($fname=~m|/|) { 4563: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|); 4564: $path.=$fnamepath.'/'; 4565: } 4566: my @parts=split(/\//,$filepath.'/userfiles/'.$path); 4567: my $count; 4568: for ($count=4;$count<=$#parts;$count++) { 4569: $filepath.="/$parts[$count]"; 4570: if ((-e $filepath)!=1) { 4571: mkdir($filepath,0777); 4572: } 4573: } 4574: 4575: # Save the file 4576: { 4577: if (!open(FH,'>',$filepath.'/'.$file)) { 4578: &logthis('Failed to create '.$filepath.'/'.$file); 4579: print STDERR ('Failed to create '.$filepath.'/'.$file."\n"); 4580: return '/adm/notfound.html'; 4581: } 4582: if ($context eq 'overwrite') { 4583: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname; 4584: my $target = $filepath.'/'.$file; 4585: if (-e $source) { 4586: my @info = stat($source); 4587: if ($info[9] eq $env{'form.timestamp'}) { 4588: unless (&File::Copy::move($source,$target)) { 4589: &logthis('Failed to overwrite '.$filepath.'/'.$file); 4590: return "Moving from $source failed"; 4591: } 4592: } else { 4593: return "Temporary file: $source had unexpected date/time for last modification"; 4594: } 4595: } else { 4596: return "Temporary file: $source missing"; 4597: } 4598: } elsif (!print FH ($env{'form.'.$formname})) { 4599: &logthis('Failed to write to '.$filepath.'/'.$file); 4600: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n"); 4601: return '/adm/notfound.html'; 4602: } 4603: close(FH); 4604: if ($resizewidth && $resizeheight) { 4605: my $mm = new File::MMagic; 4606: my $mime_type = $mm->checktype_filename($filepath.'/'.$file); 4607: if ($mime_type =~ m{^image/}) { 4608: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight); 4609: } 4610: } 4611: } 4612: if (($context eq 'coursedoc') || ($parser eq 'parse')) { 4613: if (ref($mimetype)) { 4614: if ($$mimetype eq '') { 4615: my $mm = new File::MMagic; 4616: my $type = $mm->checktype_filename($filepath.'/'.$file); 4617: $$mimetype = $type; 4618: } 4619: } 4620: } 4621: if (($context ne 'scantron') && ($parser eq 'parse')) { 4622: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) { 4623: my $parse_result = &extract_embedded_items($filepath.'/'.$file, 4624: $allfiles,$codebase); 4625: unless ($parse_result eq 'ok') { 4626: &logthis('Failed to parse '.$filepath.$file. 4627: ' for embedded media: '.$parse_result); 4628: } 4629: } 4630: } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) { 4631: my $format = $env{'form.scantron_format'}; 4632: &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format); 4633: } 4634: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) { 4635: my $input = $filepath.'/'.$file; 4636: my $output = $filepath.'/'.'tn-'.$file; 4637: my $makethumb; 4638: my $thumbsize = $thumbwidth.'x'.$thumbheight; 4639: if ($context eq 'toollogo') { 4640: my ($fullwidth,$fullheight) = &check_dimensions($input); 4641: if ($fullwidth ne '' && $fullheight ne '') { 4642: if ($fullwidth > $thumbwidth && $fullheight > $thumbheight) { 4643: $makethumb = 1; 4644: } 4645: } 4646: } else { 4647: $makethumb = 1; 4648: } 4649: if ($makethumb) { 4650: my @args = ('convert','-sample',$thumbsize,$input,$output); 4651: system({$args[0]} @args); 4652: if (-e $filepath.'/'.'tn-'.$file) { 4653: $fetchthumb = 1; 4654: } 4655: } 4656: } 4657: 4658: # Notify homeserver to grep it 4659: # 4660: my $docuhome=&homeserver($docuname,$docudom); 4661: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome); 4662: if ($fetchresult eq 'ok') { 4663: if ($fetchthumb) { 4664: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome); 4665: if ($thumbresult ne 'ok') { 4666: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '. 4667: $docuhome.': '.$thumbresult); 4668: } 4669: } 4670: # 4671: # Return the URL to it 4672: return '/uploaded/'.$path.$file; 4673: } else { 4674: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome. 4675: ': '.$fetchresult); 4676: return '/adm/notfound.html'; 4677: } 4678: } 4679: 4680: sub extract_embedded_items { 4681: my ($fullpath,$allfiles,$codebase,$content) = @_; 4682: my @state = (); 4683: my (%lastids,%related,%shockwave,%flashvars); 4684: my %javafiles = ( 4685: codebase => '', 4686: code => '', 4687: archive => '' 4688: ); 4689: my %mediafiles = ( 4690: src => '', 4691: movie => '', 4692: ); 4693: my $p; 4694: if ($content) { 4695: $p = HTML::LCParser->new($content); 4696: } else { 4697: $p = HTML::LCParser->new($fullpath); 4698: } 4699: while (my $t=$p->get_token()) { 4700: if ($t->[0] eq 'S') { 4701: my ($tagname, $attr) = ($t->[1],$t->[2]); 4702: push(@state, $tagname); 4703: if (lc($tagname) eq 'allow') { 4704: &add_filetype($allfiles,$attr->{'src'},'src'); 4705: } 4706: if (lc($tagname) eq 'img') { 4707: &add_filetype($allfiles,$attr->{'src'},'src'); 4708: } 4709: if (lc($tagname) eq 'a') { 4710: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) { 4711: &add_filetype($allfiles,$attr->{'href'},'href'); 4712: } 4713: } 4714: if (lc($tagname) eq 'script') { 4715: my $src; 4716: if ($attr->{'archive'} =~ /\.jar$/i) { 4717: &add_filetype($allfiles,$attr->{'archive'},'archive'); 4718: } else { 4719: if ($attr->{'src'} ne '') { 4720: $src = $attr->{'src'}; 4721: &add_filetype($allfiles,$src,'src'); 4722: } 4723: } 4724: my $text = $p->get_trimmed_text(); 4725: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) { 4726: my @swfargs = split(/,/,$1); 4727: foreach my $item (@swfargs) { 4728: $item =~ s/["']//g; 4729: $item =~ s/^\s+//; 4730: $item =~ s/\s+$//; 4731: } 4732: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) { 4733: if (ref($related{$swfargs[0]}) eq 'ARRAY') { 4734: push(@{$related{$swfargs[0]}},$swfargs[2]); 4735: } else { 4736: $related{$swfargs[0]} = [$swfargs[2]]; 4737: } 4738: } 4739: } 4740: } 4741: if (lc($tagname) eq 'link') { 4742: if (lc($attr->{'rel'}) eq 'stylesheet') { 4743: &add_filetype($allfiles,$attr->{'href'},'href'); 4744: } 4745: } 4746: if (lc($tagname) eq 'object' || 4747: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) { 4748: foreach my $item (keys(%javafiles)) { 4749: $javafiles{$item} = ''; 4750: } 4751: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) { 4752: $lastids{lc($tagname)} = $attr->{'id'}; 4753: } 4754: } 4755: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') { 4756: my $name = lc($attr->{'name'}); 4757: foreach my $item (keys(%javafiles)) { 4758: if ($name eq $item) { 4759: $javafiles{$item} = $attr->{'value'}; 4760: last; 4761: } 4762: } 4763: my $pathfrom; 4764: foreach my $item (keys(%mediafiles)) { 4765: if ($name eq $item) { 4766: $pathfrom = $attr->{'value'}; 4767: $shockwave{$lastids{lc($state[-2])}} = $pathfrom; 4768: &add_filetype($allfiles,$pathfrom,$name); 4769: last; 4770: } 4771: } 4772: if ($name eq 'flashvars') { 4773: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'}; 4774: } 4775: if ($pathfrom ne '') { 4776: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])}, 4777: $pathfrom); 4778: } 4779: } 4780: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') { 4781: foreach my $item (keys(%javafiles)) { 4782: if ($attr->{$item}) { 4783: $javafiles{$item} = $attr->{$item}; 4784: last; 4785: } 4786: } 4787: foreach my $item (keys(%mediafiles)) { 4788: if ($attr->{$item}) { 4789: &add_filetype($allfiles,$attr->{$item},$item); 4790: last; 4791: } 4792: } 4793: if (lc($tagname) eq 'embed') { 4794: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) { 4795: &embedded_dependency($allfiles,\%related,$attr->{'name'}, 4796: $attr->{'src'}); 4797: } 4798: } 4799: } 4800: if (lc($tagname) eq 'iframe') { 4801: my $src = $attr->{'src'} ; 4802: if (($src ne '') && ($src !~ m{^(/|https?://)})) { 4803: &add_filetype($allfiles,$src,'src'); 4804: } elsif ($src =~ m{^/}) { 4805: if ($env{'request.course.id'}) { 4806: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 4807: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 4808: my $url = &hreflocation('',$fullpath); 4809: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) { 4810: my $relpath = $1; 4811: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) { 4812: &add_filetype($allfiles,$1,'src'); 4813: } 4814: } 4815: } 4816: } 4817: } 4818: if ($t->[4] =~ m{/>$}) { 4819: pop(@state); 4820: } 4821: } elsif ($t->[0] eq 'E') { 4822: my ($tagname) = ($t->[1]); 4823: if ($javafiles{'codebase'} ne '') { 4824: $javafiles{'codebase'} .= '/'; 4825: } 4826: if (lc($tagname) eq 'applet' || 4827: lc($tagname) eq 'object' || 4828: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object') 4829: ) { 4830: foreach my $item (keys(%javafiles)) { 4831: if ($item ne 'codebase' && $javafiles{$item} ne '') { 4832: my $file=$javafiles{'codebase'}.$javafiles{$item}; 4833: &add_filetype($allfiles,$file,$item); 4834: } 4835: } 4836: } 4837: pop @state; 4838: } 4839: } 4840: foreach my $id (sort(keys(%flashvars))) { 4841: if ($shockwave{$id} ne '') { 4842: my @pairs = split(/\&/,$flashvars{$id}); 4843: foreach my $pair (@pairs) { 4844: my ($key,$value) = split(/\=/,$pair); 4845: if ($key eq 'thumb') { 4846: &add_filetype($allfiles,$value,$key); 4847: } elsif ($key eq 'content') { 4848: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$}); 4849: my ($ext) = ($value =~ /\.([^.]+)$/); 4850: if ($ext ne '') { 4851: &add_filetype($allfiles,$path.$value,$ext); 4852: } 4853: } 4854: } 4855: } 4856: } 4857: return 'ok'; 4858: } 4859: 4860: sub add_filetype { 4861: my ($allfiles,$file,$type)=@_; 4862: if (exists($allfiles->{$file})) { 4863: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) { 4864: push(@{$allfiles->{$file}}, &escape($type)); 4865: } 4866: } else { 4867: @{$allfiles->{$file}} = (&escape($type)); 4868: } 4869: } 4870: 4871: sub embedded_dependency { 4872: my ($allfiles,$related,$identifier,$pathfrom) = @_; 4873: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) { 4874: if (($identifier ne '') && 4875: (ref($related->{$identifier}) eq 'ARRAY') && 4876: ($pathfrom ne '')) { 4877: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$}); 4878: foreach my $dep (@{$related->{$identifier}}) { 4879: &add_filetype($allfiles,$path.$dep,'object'); 4880: } 4881: } 4882: } 4883: return; 4884: } 4885: 4886: sub check_dimensions { 4887: my ($inputfile) = @_; 4888: my ($fullwidth,$fullheight); 4889: if (($inputfile =~ m|^[/\w.\-]+$|) && (-e $inputfile)) { 4890: my $mm = new File::MMagic; 4891: my $mime_type = $mm->checktype_filename($inputfile); 4892: if ($mime_type =~ m{^image/}) { 4893: if (open(PIPE,"identify $inputfile 2>&1 |")) { 4894: my $imageinfo = <PIPE>; 4895: if (!close(PIPE)) { 4896: &Apache::lonnet::logthis("Failed to close PIPE opened to retrieve image information for $inputfile"); 4897: } 4898: chomp($imageinfo); 4899: my ($fullsize) = 4900: ($imageinfo =~ /^\Q$inputfile\E\s+\w+\s+(\d+x\d+)/); 4901: if ($fullsize) { 4902: ($fullwidth,$fullheight) = split(/x/,$fullsize); 4903: } 4904: } 4905: } 4906: } 4907: return ($fullwidth,$fullheight); 4908: } 4909: 4910: sub bubblesheet_converter { 4911: my ($cdom,$fullpath,$config,$format) = @_; 4912: if ((&domain($cdom) ne '') && 4913: ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) && 4914: (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) { 4915: my (%csvcols,%csvoptions); 4916: if (ref($config->{'fields'}) eq 'HASH') { 4917: %csvcols = %{$config->{'fields'}}; 4918: } 4919: if (ref($config->{'options'}) eq 'HASH') { 4920: %csvoptions = %{$config->{'options'}}; 4921: } 4922: my %csvbynum = reverse(%csvcols); 4923: my %scantronconf = &get_scantron_config($format,$cdom); 4924: if (keys(%scantronconf)) { 4925: my %bynum = ( 4926: $scantronconf{CODEstart} => 'CODEstart', 4927: $scantronconf{IDstart} => 'IDstart', 4928: $scantronconf{PaperID} => 'PaperID', 4929: $scantronconf{FirstName} => 'FirstName', 4930: $scantronconf{LastName} => 'LastName', 4931: $scantronconf{Qstart} => 'Qstart', 4932: ); 4933: my @ordered; 4934: foreach my $item (sort { $a <=> $b } keys(%bynum)) { 4935: push(@ordered,$bynum{$item}); 4936: } 4937: my %mapstart = ( 4938: CODEstart => 'CODE', 4939: IDstart => 'ID', 4940: PaperID => 'PaperID', 4941: FirstName => 'FirstName', 4942: LastName => 'LastName', 4943: Qstart => 'FirstQuestion', 4944: ); 4945: my %maplength = ( 4946: CODEstart => 'CODElength', 4947: IDstart => 'IDlength', 4948: PaperID => 'PaperIDlength', 4949: FirstName => 'FirstNamelength', 4950: LastName => 'LastNamelength', 4951: ); 4952: if (open(my $fh,'<',$fullpath)) { 4953: my $output; 4954: my %lettdig = &letter_to_digits(); 4955: my %diglett = reverse(%lettdig); 4956: my $numletts = scalar(keys(%lettdig)); 4957: my $num = 0; 4958: while (my $line=<$fh>) { 4959: $num ++; 4960: next if (($num == 1) && ($csvoptions{'hdr'} == 1)); 4961: $line =~ s{[\r\n]+$}{}; 4962: my %found; 4963: my @values = split(/,/,$line,-1); 4964: my ($qstart,$record); 4965: for (my $i=0; $i<@values; $i++) { 4966: if ((($qstart ne '') && ($i > $qstart)) || 4967: ($csvbynum{$i} eq 'FirstQuestion')) { 4968: if ($values[$i] eq '') { 4969: $values[$i] = $scantronconf{'Qoff'}; 4970: } elsif ($scantronconf{'Qon'} eq 'number') { 4971: if ($values[$i] =~ /^[A-Ja-j]$/) { 4972: $values[$i] = $lettdig{uc($values[$i])}; 4973: } 4974: } elsif ($scantronconf{'Qon'} eq 'letter') { 4975: if ($values[$i] =~ /^[0-9]$/) { 4976: $values[$i] = $diglett{$values[$i]}; 4977: } 4978: } else { 4979: if ($values[$i] =~ /^[0-9A-Ja-j]$/) { 4980: my $digit; 4981: if ($values[$i] =~ /^[A-Ja-j]$/) { 4982: $digit = $lettdig{uc($values[$i])}-1; 4983: if ($values[$i] eq 'J') { 4984: $digit += $numletts; 4985: } 4986: } elsif ($values[$i] =~ /^[0-9]$/) { 4987: $digit = $values[$i]-1; 4988: if ($values[$i] eq '0') { 4989: $digit += $numletts; 4990: } 4991: } 4992: my $qval=''; 4993: for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) { 4994: if ($j == $digit) { 4995: $qval .= $scantronconf{'Qon'}; 4996: } else { 4997: $qval .= $scantronconf{'Qoff'}; 4998: } 4999: } 5000: $values[$i] = $qval; 5001: } 5002: } 5003: if (length($values[$i]) > $scantronconf{'Qlength'}) { 5004: $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'}); 5005: } 5006: my $numblank = $scantronconf{'Qlength'} - length($values[$i]); 5007: if ($numblank > 0) { 5008: $values[$i] .= ($scantronconf{'Qoff'} x $numblank); 5009: } 5010: if ($csvbynum{$i} eq 'FirstQuestion') { 5011: $qstart = $i; 5012: $found{$csvbynum{$i}} = $values[$i]; 5013: } else { 5014: $found{'FirstQuestion'} .= $values[$i]; 5015: } 5016: } elsif (exists($csvbynum{$i})) { 5017: if ($csvoptions{'rem'}) { 5018: $values[$i] =~ s/^\s+//; 5019: } 5020: if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) { 5021: while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) { 5022: $values[$i] = '0'.$values[$i]; 5023: } 5024: } 5025: $found{$csvbynum{$i}} = $values[$i]; 5026: } 5027: } 5028: foreach my $item (@ordered) { 5029: my $currlength = 1+length($record); 5030: my $numspaces = $scantronconf{$item} - $currlength; 5031: if ($numspaces > 0) { 5032: $record .= (' ' x $numspaces); 5033: } 5034: if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) { 5035: unless ($item eq 'Qstart') { 5036: if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) { 5037: $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}}); 5038: } 5039: } 5040: $record .= $found{$mapstart{$item}}; 5041: } 5042: } 5043: $output .= "$record\n"; 5044: } 5045: close($fh); 5046: if ($output) { 5047: if (open(my $fh,'>',$fullpath)) { 5048: print $fh $output; 5049: close($fh); 5050: } 5051: } 5052: } 5053: } 5054: return; 5055: } 5056: } 5057: 5058: sub letter_to_digits { 5059: my %lettdig = ( 5060: A => 1, 5061: B => 2, 5062: C => 3, 5063: D => 4, 5064: E => 5, 5065: F => 6, 5066: G => 7, 5067: H => 8, 5068: I => 9, 5069: J => 0, 5070: ); 5071: return %lettdig; 5072: } 5073: 5074: sub get_scantron_config { 5075: my ($which,$cdom) = @_; 5076: my @lines = &get_scantronformat_file($cdom); 5077: my %config; 5078: #FIXME probably should move to XML it has already gotten a bit much now 5079: foreach my $line (@lines) { 5080: my ($name,$descrip)=split(/:/,$line); 5081: if ($name ne $which ) { next; } 5082: chomp($line); 5083: my @config=split(/:/,$line); 5084: $config{'name'}=$config[0]; 5085: $config{'description'}=$config[1]; 5086: $config{'CODElocation'}=$config[2]; 5087: $config{'CODEstart'}=$config[3]; 5088: $config{'CODElength'}=$config[4]; 5089: $config{'IDstart'}=$config[5]; 5090: $config{'IDlength'}=$config[6]; 5091: $config{'Qstart'}=$config[7]; 5092: $config{'Qlength'}=$config[8]; 5093: $config{'Qoff'}=$config[9]; 5094: $config{'Qon'}=$config[10]; 5095: $config{'PaperID'}=$config[11]; 5096: $config{'PaperIDlength'}=$config[12]; 5097: $config{'FirstName'}=$config[13]; 5098: $config{'FirstNamelength'}=$config[14]; 5099: $config{'LastName'}=$config[15]; 5100: $config{'LastNamelength'}=$config[16]; 5101: $config{'BubblesPerRow'}=$config[17]; 5102: last; 5103: } 5104: return %config; 5105: } 5106: 5107: sub get_scantronformat_file { 5108: my ($cdom) = @_; 5109: if ($cdom eq '') { 5110: $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'}; 5111: } 5112: my %domconfig = &get_dom('configuration',['scantron'],$cdom); 5113: my $gottab = 0; 5114: my @lines; 5115: if (ref($domconfig{'scantron'}) eq 'HASH') { 5116: if ($domconfig{'scantron'}{'scantronformat'} ne '') { 5117: my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'}); 5118: if ($formatfile ne '-1') { 5119: @lines = split("\n",$formatfile,-1); 5120: $gottab = 1; 5121: } 5122: } 5123: } 5124: if (!$gottab) { 5125: my $confname = $cdom.'-domainconfig'; 5126: my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab'; 5127: my $formatfile = &getfile($default); 5128: if ($formatfile ne '-1') { 5129: @lines = split("\n",$formatfile,-1); 5130: $gottab = 1; 5131: } 5132: } 5133: if (!$gottab) { 5134: my @domains = &current_machine_domains(); 5135: if (grep(/^\Q$cdom\E$/,@domains)) { 5136: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) { 5137: @lines = <$fh>; 5138: close($fh); 5139: } 5140: } else { 5141: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) { 5142: @lines = <$fh>; 5143: close($fh); 5144: } 5145: } 5146: chomp(@lines); 5147: } 5148: return @lines; 5149: } 5150: 5151: sub removeuploadedurl { 5152: my ($url)=@_; 5153: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5); 5154: return &removeuserfile($uname,$udom,$fname); 5155: } 5156: 5157: sub removeuserfile { 5158: my ($docuname,$docudom,$fname)=@_; 5159: my $home=&homeserver($docuname,$docudom); 5160: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home); 5161: if ($result eq 'ok') { 5162: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) { 5163: my $metafile = $fname.'.meta'; 5164: my $metaresult = &removeuserfile($docuname,$docudom,$metafile); 5165: my $url = "/uploaded/$docudom/$docuname/$fname"; 5166: my ($file,$group) = (&parse_portfolio_url($url))[3,4]; 5167: my $sqlresult = 5168: &update_portfolio_table($docuname,$docudom,$file, 5169: 'portfolio_metadata',$group, 5170: 'delete'); 5171: } 5172: } 5173: return $result; 5174: } 5175: 5176: sub mkdiruserfile { 5177: my ($docuname,$docudom,$dir)=@_; 5178: my $home=&homeserver($docuname,$docudom); 5179: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home); 5180: } 5181: 5182: sub renameuserfile { 5183: my ($docuname,$docudom,$old,$new)=@_; 5184: my $home=&homeserver($docuname,$docudom); 5185: my $result = &reply("renameuserfile:$docudom:$docuname:". 5186: &escape("$old").':'.&escape("$new"),$home); 5187: if ($result eq 'ok') { 5188: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) { 5189: my $oldmeta = $old.'.meta'; 5190: my $newmeta = $new.'.meta'; 5191: my $metaresult = 5192: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta); 5193: my $url = "/uploaded/$docudom/$docuname/$old"; 5194: my ($file,$group) = (&parse_portfolio_url($url))[3,4]; 5195: my $sqlresult = 5196: &update_portfolio_table($docuname,$docudom,$file, 5197: 'portfolio_metadata',$group, 5198: 'delete'); 5199: } 5200: } 5201: return $result; 5202: } 5203: 5204: # ------------------------------------------------------------------------- Log 5205: 5206: sub log { 5207: my ($dom,$nam,$hom,$what)=@_; 5208: return critical("log:$dom:$nam:$what",$hom); 5209: } 5210: 5211: # ------------------------------------------------------------------ Course Log 5212: # 5213: # This routine flushes several buffers of non-mission-critical nature 5214: # 5215: 5216: sub flushcourselogs { 5217: &logthis('Flushing log buffers'); 5218: # 5219: # course logs 5220: # This is a log of all transactions in a course, which can be used 5221: # for data mining purposes 5222: # 5223: # It also collects the courseid database, which lists last transaction 5224: # times and course titles for all courseids 5225: # 5226: my %courseidbuffer=(); 5227: foreach my $crsid (keys(%courselogs)) { 5228: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'. 5229: &escape($courselogs{$crsid}), 5230: $coursehombuf{$crsid}) eq 'ok') { 5231: delete $courselogs{$crsid}; 5232: } else { 5233: &logthis('Failed to flush log buffer for '.$crsid); 5234: if (length($courselogs{$crsid})>40000) { 5235: &logthis("WARNING: Buffer for ".$crsid. 5236: " exceeded maximum size, deleting."); 5237: delete $courselogs{$crsid}; 5238: } 5239: } 5240: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = { 5241: 'description' => $coursedescrbuf{$crsid}, 5242: 'inst_code' => $courseinstcodebuf{$crsid}, 5243: 'type' => $coursetypebuf{$crsid}, 5244: 'owner' => $courseownerbuf{$crsid}, 5245: }; 5246: } 5247: # 5248: # Write course id database (reverse lookup) to homeserver of courses 5249: # Is used in pickcourse 5250: # 5251: foreach my $crs_home (keys(%courseidbuffer)) { 5252: my $response = &courseidput(&host_domain($crs_home), 5253: $courseidbuffer{$crs_home}, 5254: $crs_home,'timeonly'); 5255: } 5256: # 5257: # File accesses 5258: # Writes to the dynamic metadata of resources to get hit counts, etc. 5259: # 5260: foreach my $entry (keys(%accesshash)) { 5261: if ($entry =~ /___count$/) { 5262: my ($dom,$name); 5263: ($dom,$name,undef)= 5264: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$}); 5265: if (! defined($dom) || $dom eq '' || 5266: ! defined($name) || $name eq '') { 5267: my $cid = $env{'request.course.id'}; 5268: # 5269: # FIXME 11/29/2021 5270: # Typo in rev. 1.458 (2003/12/09)?? 5271: # These should likely by $env{'course.'.$cid.'.domain'} and $env{'course.'.$cid.'.num'} 5272: # 5273: # While these remain as $env{'request.'.$cid.'.domain'} and $env{'request.'.$cid.'.num'} 5274: # $dom and $name will always be null, so the &inc() call will default to storing this data 5275: # in a nohist_accesscount.db file for the user rather than the course. 5276: # 5277: # That said there is a lot of noise in the data being stored. 5278: # So counts for prtspool/ and adm/ etc. are recorded. 5279: # 5280: # A review of which items ending '___count' are written to %accesshash should likely be 5281: # made before deciding whether to set these to 'course.' instead of 'request.' 5282: # 5283: # Under the current scheme each user receives a nohist_accesscount.db file listing 5284: # accesses for things which are not published resources, regardless of course, and 5285: # there is not a nohist_accesscount.db file in a course, which might log accesses from 5286: # anyone in the course for things which are not published resources. 5287: # 5288: # For an author, nohist_accesscount.db ends up having records for other items 5289: # mixed up with the legitimate access counts for the author's published resources. 5290: # 5291: $dom = $env{'request.'.$cid.'.domain'}; 5292: $name = $env{'request.'.$cid.'.num'}; 5293: } 5294: my $value = $accesshash{$entry}; 5295: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/); 5296: my %temphash=($url => $value); 5297: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name); 5298: if ($result eq 'ok') { 5299: delete $accesshash{$entry}; 5300: } 5301: } else { 5302: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$}); 5303: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; } 5304: my %temphash=($entry => $accesshash{$entry}); 5305: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') { 5306: delete $accesshash{$entry}; 5307: } 5308: } 5309: } 5310: # 5311: # Roles 5312: # Reverse lookup of user roles for course faculty/staff and co-authorship 5313: # 5314: foreach my $entry (keys(%userrolehash)) { 5315: my ($role,$uname,$udom,$runame,$rudom,$rsec)= 5316: split(/\:/,$entry); 5317: if (&put('nohist_userroles', 5318: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} }, 5319: $rudom,$runame) eq 'ok') { 5320: delete $userrolehash{$entry}; 5321: } 5322: } 5323: # 5324: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au) 5325: # 5326: my %domrolebuffer = (); 5327: foreach my $entry (keys(%domainrolehash)) { 5328: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry); 5329: if ($domrolebuffer{$rudom}) { 5330: $domrolebuffer{$rudom}.='&'.&escape($entry). 5331: '='.&escape($domainrolehash{$entry}); 5332: } else { 5333: $domrolebuffer{$rudom}.=&escape($entry). 5334: '='.&escape($domainrolehash{$entry}); 5335: } 5336: delete $domainrolehash{$entry}; 5337: } 5338: foreach my $dom (keys(%domrolebuffer)) { 5339: my %servers; 5340: if (defined(&domain($dom,'primary'))) { 5341: my $primary=&domain($dom,'primary'); 5342: my $hostname=&hostname($primary); 5343: $servers{$primary} = $hostname; 5344: } else { 5345: %servers = &get_servers($dom,'library'); 5346: } 5347: foreach my $tryserver (keys(%servers)) { 5348: if (&reply('domroleput:'.$dom.':'. 5349: $domrolebuffer{$dom},$tryserver) eq 'ok') { 5350: last; 5351: } else { 5352: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver); 5353: } 5354: } 5355: } 5356: $dumpcount++; 5357: } 5358: 5359: sub courselog { 5360: my $what=shift; 5361: $what=time.':'.$what; 5362: unless ($env{'request.course.id'}) { return ''; } 5363: $coursedombuf{$env{'request.course.id'}}= 5364: $env{'course.'.$env{'request.course.id'}.'.domain'}; 5365: $coursenumbuf{$env{'request.course.id'}}= 5366: $env{'course.'.$env{'request.course.id'}.'.num'}; 5367: $coursehombuf{$env{'request.course.id'}}= 5368: $env{'course.'.$env{'request.course.id'}.'.home'}; 5369: $coursedescrbuf{$env{'request.course.id'}}= 5370: $env{'course.'.$env{'request.course.id'}.'.description'}; 5371: $courseinstcodebuf{$env{'request.course.id'}}= 5372: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}; 5373: $courseownerbuf{$env{'request.course.id'}}= 5374: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'}; 5375: $coursetypebuf{$env{'request.course.id'}}= 5376: $env{'course.'.$env{'request.course.id'}.'.type'}; 5377: if (defined $courselogs{$env{'request.course.id'}}) { 5378: $courselogs{$env{'request.course.id'}}.='&'.$what; 5379: } else { 5380: $courselogs{$env{'request.course.id'}}.=$what; 5381: } 5382: if (length($courselogs{$env{'request.course.id'}})>4048) { 5383: &flushcourselogs(); 5384: } 5385: } 5386: 5387: sub courseacclog { 5388: my $fnsymb=shift; 5389: unless ($env{'request.course.id'}) { return ''; } 5390: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'}; 5391: if ($fnsymb=~/$LONCAPA::assess_re/) { 5392: $what.=':POST'; 5393: # FIXME: Probably ought to escape things.... 5394: foreach my $key (keys(%env)) { 5395: if ($key=~/^form\.(.*)/) { 5396: my $formitem = $1; 5397: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) { 5398: $what.=':'.$formitem.'='.$env{$key}; 5399: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) { 5400: if ($formitem eq 'proctorpassword') { 5401: $what.=':'.$formitem.'=' . '*' x length($env{$key}); 5402: } else { 5403: $what.=':'.$formitem.'='.$env{$key}; 5404: } 5405: } 5406: } 5407: } 5408: } elsif ($fnsymb =~ m:^/adm/searchcat:) { 5409: # FIXME: We should not be depending on a form parameter that someone 5410: # editing lonsearchcat.pm might change in the future. 5411: if ($env{'form.phase'} eq 'course_search') { 5412: $what.= ':POST'; 5413: # FIXME: Probably ought to escape things.... 5414: foreach my $element ('courseexp','crsfulltext','crsrelated', 5415: 'crsdiscuss') { 5416: $what.=':'.$element.'='.$env{'form.'.$element}; 5417: } 5418: } 5419: } 5420: &courselog($what); 5421: } 5422: 5423: sub countacc { 5424: my $url=&declutter(shift); 5425: return if (! defined($url) || $url eq ''); 5426: unless ($env{'request.course.id'}) { return ''; } 5427: # 5428: # Mark that this url was used in this course 5429: # 5430: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1; 5431: # 5432: # Increase the access count for this resource in this child process 5433: # 5434: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count'; 5435: $accesshash{$key}++; 5436: } 5437: 5438: sub linklog { 5439: my ($from,$to)=@_; 5440: $from=&declutter($from); 5441: $to=&declutter($to); 5442: $accesshash{$from.'___'.$to.'___comefrom'}=1; 5443: $accesshash{$to.'___'.$from.'___goto'}=1; 5444: } 5445: 5446: sub statslog { 5447: my ($symb,$part,$users,$av_attempts,$degdiff)=@_; 5448: if ($users<2) { return; } 5449: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({ 5450: 'course' => $env{'request.course.id'}, 5451: 'sections' => '"all"', 5452: 'num_students' => $users, 5453: 'part' => $part, 5454: 'symb' => $symb, 5455: 'mean_tries' => $av_attempts, 5456: 'deg_of_diff' => $degdiff}); 5457: foreach my $key (keys(%dynstore)) { 5458: $accesshash{$key}=$dynstore{$key}; 5459: } 5460: } 5461: 5462: sub userrolelog { 5463: my ($trole,$username,$domain,$area,$tstart,$tend)=@_; 5464: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) { 5465: my (undef,$rudom,$runame,$rsec)=split(/\//,$area); 5466: $userrolehash 5467: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} 5468: =$tend.':'.$tstart; 5469: } 5470: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) { 5471: $userrolehash 5472: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'} 5473: =$tend.':'.$tstart; 5474: } 5475: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) { 5476: my (undef,$rudom,$runame,$rsec)=split(/\//,$area); 5477: $domainrolehash 5478: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} 5479: = $tend.':'.$tstart; 5480: } 5481: } 5482: 5483: sub courserolelog { 5484: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll, 5485: $context,$othdomby,$requester)=@_; 5486: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) { 5487: my $cdom = $1; 5488: my $cnum = $2; 5489: my $sec = $3; 5490: my $namespace = 'rolelog'; 5491: my %storehash = ( 5492: role => $trole, 5493: start => $tstart, 5494: end => $tend, 5495: selfenroll => $selfenroll, 5496: context => $context, 5497: ); 5498: if ($othdomby) { 5499: if ($othdomby eq 'othdombydc') { 5500: $storehash{'approval'} = 'domain'; 5501: } elsif ($othdomby eq 'othdombyuser') { 5502: $storehash{'approval'} = 'user'; 5503: } 5504: if ($requester ne '') { 5505: $storehash{'requester'} = $requester; 5506: } 5507: } 5508: if ($trole eq 'gr') { 5509: $namespace = 'groupslog'; 5510: $storehash{'group'} = $sec; 5511: } else { 5512: $storehash{'section'} = $sec; 5513: my ($curruserdomstr,$newuserdomstr); 5514: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'})) { 5515: $curruserdomstr = $env{'course.'.$env{'request.course.id'}.'.internal.userdomains'}; 5516: } else { 5517: my %courseinfo = &coursedescription($cdom.'/'.$cnum); 5518: $curruserdomstr = $courseinfo{'internal.userdomains'}; 5519: } 5520: if ($curruserdomstr ne '') { 5521: my @udoms = split(/,/,$curruserdomstr); 5522: unless (grep(/^\Q$domain\E/,@udoms)) { 5523: push(@udoms,$domain); 5524: $newuserdomstr = join(',',sort(@udoms)); 5525: } 5526: } else { 5527: $newuserdomstr = $domain; 5528: } 5529: if ($newuserdomstr ne '') { 5530: my $putresult = &put('environment',{ 'internal.userdomains' => $newuserdomstr }, 5531: $cdom,$cnum); 5532: if ($putresult eq 'ok') { 5533: unless (($selfenroll) || ($context eq 'selfenroll')) { 5534: if (($context eq 'createcourse') || ($context eq 'requestcourses') || 5535: ($context eq 'automated') || ($context eq 'domain')) { 5536: $env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'} = $newuserdomstr; 5537: } elsif ($env{'request.course.id'} eq $cdom.'_'.$cnum) { 5538: &appenv({'course.'.$cdom.'_'.$cnum.'.internal.userdomains' => $newuserdomstr}); 5539: } 5540: } 5541: } 5542: } 5543: } 5544: &write_log('course',$namespace,\%storehash,$delflag,$username, 5545: $domain,$cnum,$cdom); 5546: if (($trole ne 'st') || ($sec ne '')) { 5547: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum); 5548: } 5549: } 5550: return; 5551: } 5552: 5553: sub domainrolelog { 5554: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag, 5555: $context,$othdomby,$requester)=@_; 5556: if ($area =~ m{^/($match_domain)/$}) { 5557: my $cdom = $1; 5558: my $domconfiguser = &get_domainconfiguser($cdom); 5559: my $namespace = 'rolelog'; 5560: my %storehash = ( 5561: role => $trole, 5562: start => $tstart, 5563: end => $tend, 5564: context => $context, 5565: ); 5566: if ($othdomby) { 5567: if ($othdomby eq 'othdombydc') { 5568: $storehash{'approval'} = 'domain'; 5569: } elsif ($othdomby eq 'othdombyuser') { 5570: $storehash{'approval'} = 'user'; 5571: } 5572: if ($requester ne '') { 5573: $storehash{'requester'} = $requester; 5574: } 5575: } 5576: &write_log('domain',$namespace,\%storehash,$delflag,$username, 5577: $domain,$domconfiguser,$cdom); 5578: } 5579: return; 5580: 5581: } 5582: 5583: sub coauthorrolelog { 5584: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag, 5585: $context,$othdomby,$requester)=@_; 5586: if ($area =~ m{^/($match_domain)/($match_username)$}) { 5587: my $audom = $1; 5588: my $auname = $2; 5589: my $namespace = 'rolelog'; 5590: my %storehash = ( 5591: role => $trole, 5592: start => $tstart, 5593: end => $tend, 5594: context => $context, 5595: ); 5596: if ($othdomby) { 5597: if ($othdomby eq 'othdombydc') { 5598: $storehash{'approval'} = 'domain'; 5599: } elsif ($othdomby eq 'othdombyuser') { 5600: $storehash{'approval'} = 'user'; 5601: } 5602: if ($requester ne '') { 5603: $storehash{'requester'} = $requester; 5604: } 5605: } 5606: &write_log('author',$namespace,\%storehash,$delflag,$username, 5607: $domain,$auname,$audom); 5608: } 5609: return; 5610: } 5611: 5612: sub get_course_adv_roles { 5613: my ($cid,$codes) = @_; 5614: $cid=$env{'request.course.id'} unless (defined($cid)); 5615: my %coursehash=&coursedescription($cid); 5616: my $crstype = &Apache::loncommon::course_type($cid); 5617: my %nothide=(); 5618: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 5619: if ($user !~ /:/) { 5620: $nothide{join(':',split(/[\@]/,$user))}=1; 5621: } else { 5622: $nothide{$user}=1; 5623: } 5624: } 5625: my @possdoms = ($coursehash{'domain'}); 5626: if ($coursehash{'checkforpriv'}) { 5627: push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); 5628: } 5629: my %returnhash=(); 5630: my %dumphash= 5631: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'}); 5632: my $now=time; 5633: my %privileged; 5634: foreach my $entry (keys(%dumphash)) { 5635: my ($tend,$tstart)=split(/\:/,$dumphash{$entry}); 5636: if (($tstart) && ($tstart<0)) { next; } 5637: if (($tend) && ($tend<$now)) { next; } 5638: if (($tstart) && ($now<$tstart)) { next; } 5639: my ($role,$username,$domain,$section)=split(/\:/,$entry); 5640: if ($username eq '' || $domain eq '') { next; } 5641: if ((&privileged($username,$domain,\@possdoms)) && 5642: (!$nothide{$username.':'.$domain})) { next; } 5643: if ($role eq 'cr') { next; } 5644: if ($codes) { 5645: if ($section) { $role .= ':'.$section; } 5646: if ($returnhash{$role}) { 5647: $returnhash{$role}.=','.$username.':'.$domain; 5648: } else { 5649: $returnhash{$role}=$username.':'.$domain; 5650: } 5651: } else { 5652: my $key=&plaintext($role,$crstype); 5653: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; } 5654: if ($returnhash{$key}) { 5655: $returnhash{$key}.=','.$username.':'.$domain; 5656: } else { 5657: $returnhash{$key}=$username.':'.$domain; 5658: } 5659: } 5660: } 5661: return %returnhash; 5662: } 5663: 5664: sub get_my_roles { 5665: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_; 5666: unless (defined($uname)) { $uname=$env{'user.name'}; } 5667: unless (defined($udom)) { $udom=$env{'user.domain'}; } 5668: my (%dumphash,%nothide); 5669: if ($context eq 'userroles') { 5670: %dumphash = &dump('roles',$udom,$uname); 5671: } else { 5672: %dumphash = &dump('nohist_userroles',$udom,$uname); 5673: if ($hidepriv) { 5674: my %coursehash=&coursedescription($udom.'_'.$uname); 5675: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 5676: if ($user !~ /:/) { 5677: $nothide{join(':',split(/[\@]/,$user))} = 1; 5678: } else { 5679: $nothide{$user} = 1; 5680: } 5681: } 5682: } 5683: } 5684: my %returnhash=(); 5685: my $now=time; 5686: my %privileged; 5687: foreach my $entry (keys(%dumphash)) { 5688: my ($role,$tend,$tstart); 5689: if ($context eq 'userroles') { 5690: next if ($entry =~ /^rolesdef/); 5691: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry}); 5692: } else { 5693: ($tend,$tstart)=split(/\:/,$dumphash{$entry}); 5694: } 5695: if (($tstart) && ($tstart<0)) { next; } 5696: my $status = 'active'; 5697: if (($tend) && ($tend<=$now)) { 5698: $status = 'previous'; 5699: } 5700: if (($tstart) && ($now<$tstart)) { 5701: $status = 'future'; 5702: } 5703: if (ref($types) eq 'ARRAY') { 5704: if (!grep(/^\Q$status\E$/,@{$types})) { 5705: next; 5706: } 5707: } else { 5708: if ($status ne 'active') { 5709: next; 5710: } 5711: } 5712: my ($rolecode,$username,$domain,$section,$area); 5713: if ($context eq 'userroles') { 5714: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/); 5715: (undef,$domain,$username,$section) = split(/\//,$area); 5716: } else { 5717: ($role,$username,$domain,$section) = split(/\:/,$entry); 5718: } 5719: if (ref($roledoms) eq 'ARRAY') { 5720: if (!grep(/^\Q$domain\E$/,@{$roledoms})) { 5721: next; 5722: } 5723: } 5724: if (ref($roles) eq 'ARRAY') { 5725: if (!grep(/^\Q$role\E$/,@{$roles})) { 5726: if ($role =~ /^cr\//) { 5727: if (!grep(/^cr$/,@{$roles})) { 5728: next; 5729: } 5730: } elsif ($role =~ /^gr\//) { 5731: if (!grep(/^gr$/,@{$roles})) { 5732: next; 5733: } 5734: } else { 5735: next; 5736: } 5737: } 5738: } 5739: if ($hidepriv) { 5740: my @privroles = ('dc','su'); 5741: if ($context eq 'userroles') { 5742: next if (grep(/^\Q$role\E$/,@privroles)); 5743: } else { 5744: my $possdoms = [$domain]; 5745: if (ref($roledoms) eq 'ARRAY') { 5746: push(@{$possdoms},@{$roledoms}); 5747: } 5748: if (&privileged($username,$domain,$possdoms,\@privroles)) { 5749: if (!$nothide{$username.':'.$domain}) { 5750: next; 5751: } 5752: } 5753: } 5754: } 5755: if ($withsec) { 5756: $returnhash{$username.':'.$domain.':'.$role.':'.$section} = 5757: $tstart.':'.$tend; 5758: } else { 5759: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend; 5760: } 5761: } 5762: return %returnhash; 5763: } 5764: 5765: sub get_all_adhocroles { 5766: my ($dom) = @_; 5767: my @roles_by_num = (); 5768: my %domdefaults = &get_domain_defaults($dom); 5769: my (%description,%access_in_dom,%access_info); 5770: if (ref($domdefaults{'adhocroles'}) eq 'HASH') { 5771: my $count = 0; 5772: my %domcurrent = %{$domdefaults{'adhocroles'}}; 5773: my %ordered; 5774: foreach my $role (sort(keys(%domcurrent))) { 5775: my ($order,$desc,$access_in_dom); 5776: if (ref($domcurrent{$role}) eq 'HASH') { 5777: $order = $domcurrent{$role}{'order'}; 5778: $desc = $domcurrent{$role}{'desc'}; 5779: $access_in_dom{$role} = $domcurrent{$role}{'access'}; 5780: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}}; 5781: } 5782: if ($order eq '') { 5783: $order = $count; 5784: } 5785: $ordered{$order} = $role; 5786: if ($desc ne '') { 5787: $description{$role} = $desc; 5788: } else { 5789: $description{$role}= $role; 5790: } 5791: $count++; 5792: } 5793: foreach my $item (sort {$a <=> $b } (keys(%ordered))) { 5794: push(@roles_by_num,$ordered{$item}); 5795: } 5796: } 5797: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info); 5798: } 5799: 5800: sub get_my_adhocroles { 5801: my ($cid,$checkreg) = @_; 5802: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num); 5803: if ($env{'request.course.id'} eq $cid) { 5804: $cdom = $env{'course.'.$cid.'.domain'}; 5805: $cnum = $env{'course.'.$cid.'.num'}; 5806: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'}; 5807: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) { 5808: $cdom = $1; 5809: $cnum = $2; 5810: %info = &get('environment',['internal.coursecode'], 5811: $cdom,$cnum); 5812: } 5813: if (($info{'internal.coursecode'} ne '') && ($checkreg)) { 5814: my $user = $env{'user.name'}.':'.$env{'user.domain'}; 5815: my %rosterhash = &get('classlist',[$user],$cdom,$cnum); 5816: if ($rosterhash{$user} ne '') { 5817: my $type = (split(/:/,$rosterhash{$user}))[5]; 5818: return ([],{}) if ($type eq 'auto'); 5819: } 5820: } 5821: if (($cdom ne '') && ($cnum ne '')) { 5822: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) { 5823: my $then=$env{'user.login.time'}; 5824: my $update=$env{'user.update.time'}; 5825: if (!$update) { 5826: $update = $then; 5827: } 5828: my @liveroles; 5829: foreach my $role ('dh','da') { 5830: if ($env{"user.role.$role./$cdom/"}) { 5831: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"}); 5832: my $limit = $update; 5833: if ($env{'request.role'} eq "$role./$cdom/") { 5834: $limit = $then; 5835: } 5836: my $activerole = 1; 5837: if ($tstart && $tstart>$limit) { $activerole = 0; } 5838: if ($tend && $tend <$limit) { $activerole = 0; } 5839: if ($activerole) { 5840: push(@liveroles,$role); 5841: } 5842: } 5843: } 5844: if (@liveroles) { 5845: if (&homeserver($cnum,$cdom) ne 'no_host') { 5846: my ($accessref,$accessinfo,%access_in_dom); 5847: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom); 5848: if (ref($roles_by_num) eq 'ARRAY') { 5849: if (@{$roles_by_num}) { 5850: my %settings; 5851: if ($env{'request.course.id'} eq $cid) { 5852: foreach my $envkey (keys(%env)) { 5853: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) { 5854: $settings{$1} = $env{$envkey}; 5855: } 5856: } 5857: } else { 5858: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc'); 5859: } 5860: my %setincrs; 5861: if ($settings{'internal.adhocaccess'}) { 5862: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'}); 5863: } 5864: my @statuses; 5865: if ($env{'environment.inststatus'}) { 5866: @statuses = split(/,/,$env{'environment.inststatus'}); 5867: } 5868: my $user = $env{'user.name'}.':'.$env{'user.domain'}; 5869: if (ref($accessref) eq 'HASH') { 5870: %access_in_dom = %{$accessref}; 5871: } 5872: foreach my $role (@{$roles_by_num}) { 5873: my ($curraccess,@okstatus,@personnel); 5874: if ($setincrs{$role}) { 5875: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role}); 5876: if ($curraccess eq 'status') { 5877: @okstatus = split(/\&/,$rest); 5878: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5879: @personnel = split(/\&/,$rest); 5880: } 5881: } else { 5882: $curraccess = $access_in_dom{$role}; 5883: if (ref($accessinfo) eq 'HASH') { 5884: if ($curraccess eq 'status') { 5885: if (ref($accessinfo->{$role}) eq 'ARRAY') { 5886: @okstatus = @{$accessinfo->{$role}}; 5887: } 5888: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5889: if (ref($accessinfo->{$role}) eq 'ARRAY') { 5890: @personnel = @{$accessinfo->{$role}}; 5891: } 5892: } 5893: } 5894: } 5895: if ($curraccess eq 'none') { 5896: next; 5897: } elsif ($curraccess eq 'all') { 5898: push(@possroles,$role); 5899: } elsif ($curraccess eq 'dh') { 5900: if (grep(/^dh$/,@liveroles)) { 5901: push(@possroles,$role); 5902: } else { 5903: next; 5904: } 5905: } elsif ($curraccess eq 'da') { 5906: if (grep(/^da$/,@liveroles)) { 5907: push(@possroles,$role); 5908: } else { 5909: next; 5910: } 5911: } elsif ($curraccess eq 'status') { 5912: if (@okstatus) { 5913: if (!@statuses) { 5914: if (grep(/^default$/,@okstatus)) { 5915: push(@possroles,$role); 5916: } 5917: } else { 5918: foreach my $status (@okstatus) { 5919: if (grep(/^\Q$status\E$/,@statuses)) { 5920: push(@possroles,$role); 5921: last; 5922: } 5923: } 5924: } 5925: } 5926: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5927: if (grep(/^\Q$user\E$/,@personnel)) { 5928: if ($curraccess eq 'exc') { 5929: push(@possroles,$role); 5930: } 5931: } elsif ($curraccess eq 'inc') { 5932: push(@possroles,$role); 5933: } 5934: } 5935: } 5936: } 5937: } 5938: } 5939: } 5940: } 5941: } 5942: unless (ref($description) eq 'HASH') { 5943: if (ref($roles_by_num) eq 'ARRAY') { 5944: my %desc; 5945: map { $desc{$_} = $_; } (@{$roles_by_num}); 5946: $description = \%desc; 5947: } else { 5948: $description = {}; 5949: } 5950: } 5951: return (\@possroles,$description); 5952: } 5953: 5954: # ----------------------------------------------------- Frontpage Announcements 5955: # 5956: # 5957: 5958: sub postannounce { 5959: my ($server,$text)=@_; 5960: unless (&allowed('psa',&host_domain($server))) { return 'refused'; } 5961: unless ($text=~/\w/) { $text=''; } 5962: return &reply('setannounce:'.&escape($text),$server); 5963: } 5964: 5965: sub getannounce { 5966: 5967: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) { 5968: my $announcement=''; 5969: while (my $line = <$fh>) { $announcement .= $line; } 5970: close($fh); 5971: if ($announcement=~/\w/) { 5972: return 5973: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'. 5974: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>'; 5975: } else { 5976: return ''; 5977: } 5978: } else { 5979: return ''; 5980: } 5981: } 5982: 5983: # ---------------------------------------------------------- Course ID routines 5984: # Deal with domain's nohist_courseid.db files 5985: # 5986: 5987: sub courseidput { 5988: my ($domain,$storehash,$coursehome,$caller) = @_; 5989: return unless (ref($storehash) eq 'HASH'); 5990: my $outcome; 5991: if ($caller eq 'timeonly') { 5992: my $cids = ''; 5993: foreach my $item (keys(%$storehash)) { 5994: $cids.=&escape($item).'&'; 5995: } 5996: $cids=~s/\&$//; 5997: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids, 5998: $coursehome); 5999: } else { 6000: my $items = ''; 6001: foreach my $item (keys(%$storehash)) { 6002: $items.= &escape($item).'='. 6003: &freeze_escape($$storehash{$item}).'&'; 6004: } 6005: $items=~s/\&$//; 6006: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items, 6007: $coursehome); 6008: } 6009: if ($outcome eq 'unknown_cmd') { 6010: my $what; 6011: foreach my $cid (keys(%$storehash)) { 6012: $what .= &escape($cid).'='; 6013: foreach my $item ('description','inst_code','owner','type') { 6014: $what .= &escape($storehash->{$cid}{$item}).':'; 6015: } 6016: $what =~ s/\:$/&/; 6017: } 6018: $what =~ s/\&$//; 6019: return &reply('courseidput:'.$domain.':'.$what,$coursehome); 6020: } else { 6021: return $outcome; 6022: } 6023: } 6024: 6025: sub courseiddump { 6026: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter, 6027: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok, 6028: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone, 6029: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner, 6030: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_; 6031: my $as_hash = 1; 6032: my %returnhash; 6033: if (!$domfilter) { $domfilter=''; } 6034: my %libserv = &all_library(); 6035: foreach my $tryserver (keys(%libserv)) { 6036: if ( ( $hostidflag == 1 6037: && grep(/^\Q$tryserver\E$/,@{$hostidref}) ) 6038: || (!defined($hostidflag)) ) { 6039: 6040: if (($domfilter eq '') || 6041: (&host_domain($tryserver) eq $domfilter)) { 6042: my $rep; 6043: if (grep { $_ eq $tryserver } current_machine_ids()) { 6044: $rep = LONCAPA::Lond::dump_course_id_handler( 6045: join(":", (&host_domain($tryserver), $sincefilter, 6046: &escape($descfilter), &escape($instcodefilter), 6047: &escape($ownerfilter), &escape($coursefilter), 6048: &escape($typefilter), &escape($regexp_ok), 6049: $as_hash, &escape($selfenrollonly), 6050: &escape($catfilter), $showhidden, $caller, 6051: &escape($cloner), &escape($cc_clone), $cloneonly, 6052: &escape($createdbefore), &escape($createdafter), 6053: &escape($creationcontext),$domcloner,$hasuniquecode, 6054: $reqcrsdom,&escape($reqinstcode)))); 6055: } else { 6056: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'. 6057: $sincefilter.':'.&escape($descfilter).':'. 6058: &escape($instcodefilter).':'.&escape($ownerfilter). 6059: ':'.&escape($coursefilter).':'.&escape($typefilter). 6060: ':'.&escape($regexp_ok).':'.$as_hash.':'. 6061: &escape($selfenrollonly).':'.&escape($catfilter).':'. 6062: $showhidden.':'.$caller.':'.&escape($cloner).':'. 6063: &escape($cc_clone).':'.$cloneonly.':'. 6064: &escape($createdbefore).':'.&escape($createdafter).':'. 6065: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode. 6066: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver); 6067: } 6068: 6069: my @pairs=split(/\&/,$rep); 6070: foreach my $item (@pairs) { 6071: my ($key,$value)=split(/\=/,$item,2); 6072: $key = &unescape($key); 6073: next if ($key =~ /^error: 2 /); 6074: my $result = &thaw_unescape($value); 6075: if (ref($result) eq 'HASH') { 6076: $returnhash{$key}=$result; 6077: } else { 6078: my @responses = split(/:/,$value); 6079: my @items = ('description','inst_code','owner','type'); 6080: for (my $i=0; $i<@responses; $i++) { 6081: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]); 6082: } 6083: } 6084: } 6085: } 6086: } 6087: } 6088: return %returnhash; 6089: } 6090: 6091: sub courselastaccess { 6092: my ($cdom,$cnum,$hostidref) = @_; 6093: my %returnhash; 6094: if ($cdom && $cnum) { 6095: my $chome = &homeserver($cnum,$cdom); 6096: if ($chome ne 'no_host') { 6097: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome); 6098: &extract_lastaccess(\%returnhash,$rep); 6099: } 6100: } else { 6101: if (!$cdom) { $cdom=''; } 6102: my %libserv = &all_library(); 6103: foreach my $tryserver (keys(%libserv)) { 6104: if (ref($hostidref) eq 'ARRAY') { 6105: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref})); 6106: } 6107: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) { 6108: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver); 6109: &extract_lastaccess(\%returnhash,$rep); 6110: } 6111: } 6112: } 6113: return %returnhash; 6114: } 6115: 6116: sub extract_lastaccess { 6117: my ($returnhash,$rep) = @_; 6118: if (ref($returnhash) eq 'HASH') { 6119: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || 6120: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || 6121: $rep eq '') { 6122: my @pairs=split(/\&/,$rep); 6123: foreach my $item (@pairs) { 6124: my ($key,$value)=split(/\=/,$item,2); 6125: $key = &unescape($key); 6126: next if ($key =~ /^error: 2 /); 6127: $returnhash->{$key} = &thaw_unescape($value); 6128: } 6129: } 6130: } 6131: return; 6132: } 6133: 6134: # ---------------------------------------------------------- DC e-mail 6135: 6136: sub dcmailput { 6137: my ($domain,$msgid,$message,$server)=@_; 6138: my $status = &critical( 6139: 'dcmailput:'.$domain.':'.&escape($msgid).'='. 6140: &escape($message),$server); 6141: return $status; 6142: } 6143: 6144: sub dcmaildump { 6145: my ($dom,$startdate,$enddate,$senders) = @_; 6146: my %returnhash=(); 6147: 6148: if (defined(&domain($dom,'primary'))) { 6149: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'. 6150: &escape($enddate).':'; 6151: my @esc_senders=map { &escape($_)} @$senders; 6152: $cmd.=&escape(join('&',@esc_senders)); 6153: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) { 6154: my ($key,$value) = split(/\=/,$line,2); 6155: if (($key) && ($value)) { 6156: $returnhash{&unescape($key)} = &unescape($value); 6157: } 6158: } 6159: } 6160: return %returnhash; 6161: } 6162: # ---------------------------------------------------------- Domain roles 6163: 6164: sub get_domain_roles { 6165: my ($dom,$roles,$startdate,$enddate)=@_; 6166: if ((!defined($startdate)) || ($startdate eq '')) { 6167: $startdate = '.'; 6168: } 6169: if ((!defined($enddate)) || ($enddate eq '')) { 6170: $enddate = '.'; 6171: } 6172: my $rolelist; 6173: if (ref($roles) eq 'ARRAY') { 6174: $rolelist = join('&',@{$roles}); 6175: } 6176: my %personnel = (); 6177: 6178: my %servers = &get_servers($dom,'library'); 6179: foreach my $tryserver (keys(%servers)) { 6180: %{$personnel{$tryserver}}=(); 6181: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'. 6182: &escape($startdate).':'. 6183: &escape($enddate).':'. 6184: &escape($rolelist), $tryserver))) { 6185: my ($key,$value) = split(/\=/,$line,2); 6186: if (($key) && ($value)) { 6187: $personnel{$tryserver}{&unescape($key)} = &unescape($value); 6188: } 6189: } 6190: } 6191: return %personnel; 6192: } 6193: 6194: sub get_active_domroles { 6195: my ($dom,$roles) = @_; 6196: return () unless (ref($roles) eq 'ARRAY'); 6197: my $now = time; 6198: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now); 6199: my %domroles; 6200: foreach my $server (keys(%dompersonnel)) { 6201: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) { 6202: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user); 6203: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user}; 6204: } 6205: } 6206: return %domroles; 6207: } 6208: 6209: # ----------------------------------------------------------- Interval timing 6210: 6211: { 6212: # Caches needed for speedup of navmaps 6213: # We don't want to cache this for very long at all (5 seconds at most) 6214: # 6215: # The user for whom we cache 6216: my $cachedkey=''; 6217: # The cached times for this user 6218: my %cachedtimes=(); 6219: # When this was last done 6220: my $cachedtime=''; 6221: 6222: sub load_all_first_access { 6223: my ($uname,$udom,$ignorecache)=@_; 6224: if (($cachedkey eq $uname.':'.$udom) && 6225: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) && 6226: (!$ignorecache)) { 6227: return; 6228: } 6229: $cachedtime=time; 6230: $cachedkey=$uname.':'.$udom; 6231: %cachedtimes=&dump('firstaccesstimes',$udom,$uname); 6232: } 6233: 6234: sub get_first_access { 6235: my ($type,$argsymb,$argmap,$ignorecache)=@_; 6236: my ($symb,$courseid,$udom,$uname)=&whichuser(); 6237: if ($argsymb) { $symb=$argsymb; } 6238: my ($map,$id,$res)=&decode_symb($symb); 6239: if ($argmap) { $map = $argmap; } 6240: if ($type eq 'course') { 6241: $res='course'; 6242: } elsif ($type eq 'map') { 6243: $res=&symbread($map); 6244: } else { 6245: $res=$symb; 6246: } 6247: &load_all_first_access($uname,$udom,$ignorecache); 6248: return $cachedtimes{"$courseid\0$res"}; 6249: } 6250: 6251: sub set_first_access { 6252: my ($type,$interval)=@_; 6253: my ($symb,$courseid,$udom,$uname)=&whichuser(); 6254: my ($map,$id,$res)=&decode_symb($symb); 6255: if ($type eq 'course') { 6256: $res='course'; 6257: } elsif ($type eq 'map') { 6258: $res=&symbread($map); 6259: } else { 6260: $res=$symb; 6261: } 6262: $cachedkey=''; 6263: my $firstaccess=&get_first_access($type,$symb,$map); 6264: if ($firstaccess) { 6265: &logthis("First access time already set ($firstaccess) when attempting ". 6266: "to set new value (type: $type, extent: $res) for $uname:$udom ". 6267: "in $courseid"); 6268: return 'already_set'; 6269: } else { 6270: my $start = time; 6271: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start}, 6272: $udom,$uname); 6273: if ($putres eq 'ok') { 6274: &put('timerinterval',{"$courseid\0$res"=>$interval}, 6275: $udom,$uname); 6276: &appenv( 6277: { 6278: 'course.'.$courseid.'.firstaccess.'.$res => $start, 6279: 'course.'.$courseid.'.timerinterval.'.$res => $interval, 6280: } 6281: ); 6282: if (($cachedtime) && (abs($start-$cachedtime) < 5)) { 6283: $cachedtimes{"$courseid\0$res"} = $start; 6284: } 6285: } elsif ($putres ne 'refused') { 6286: &logthis("Result: $putres when attempting to set first access time ". 6287: "(type: $type, extent: $res) for $uname:$udom in $courseid"); 6288: } 6289: return $putres; 6290: } 6291: return 'already_set'; 6292: } 6293: } 6294: 6295: # --------------------------------------------- Set Expire Date for Spreadsheet 6296: 6297: sub expirespread { 6298: my ($uname,$udom,$stype,$usymb)=@_; 6299: my $cid=$env{'request.course.id'}; 6300: if ($cid) { 6301: my $now=time; 6302: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb; 6303: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'. 6304: $env{'course.'.$cid.'.num'}. 6305: ':nohist_expirationdates:'. 6306: &escape($key).'='.$now, 6307: $env{'course.'.$cid.'.home'}) 6308: } 6309: return 'ok'; 6310: } 6311: 6312: # ----------------------------------------------------- Devalidate Spreadsheets 6313: 6314: sub devalidate { 6315: my ($symb,$uname,$udom)=@_; 6316: my $cid=$env{'request.course.id'}; 6317: if ($cid) { 6318: # delete the stored spreadsheets for 6319: # - the student level sheet of this user in course's homespace 6320: # - the assessment level sheet for this resource 6321: # for this user in user's homespace 6322: # - current conditional state info 6323: my $key=$uname.':'.$udom.':'; 6324: my $status= 6325: &del('nohist_calculatedsheets', 6326: [$key.'studentcalc:'], 6327: $env{'course.'.$cid.'.domain'}, 6328: $env{'course.'.$cid.'.num'}) 6329: .' '. 6330: &del('nohist_calculatedsheets_'.$cid, 6331: [$key.'assesscalc:'.$symb],$udom,$uname); 6332: unless ($status eq 'ok ok') { 6333: &logthis('Could not devalidate spreadsheet '. 6334: $uname.' at '.$udom.' for '. 6335: $symb.': '.$status); 6336: } 6337: &delenv('user.state.'.$cid); 6338: } 6339: } 6340: 6341: sub get_scalar { 6342: my ($string,$end) = @_; 6343: my $value; 6344: if ($$string =~ s/^([^&]*?)($end)/$2/) { 6345: $value = $1; 6346: } elsif ($$string =~ s/^([^&]*?)&//) { 6347: $value = $1; 6348: } 6349: return &unescape($value); 6350: } 6351: 6352: sub array2str { 6353: my (@array) = @_; 6354: my $result=&arrayref2str(\@array); 6355: $result=~s/^__ARRAY_REF__//; 6356: $result=~s/__END_ARRAY_REF__$//; 6357: return $result; 6358: } 6359: 6360: sub arrayref2str { 6361: my ($arrayref) = @_; 6362: my $result='__ARRAY_REF__'; 6363: foreach my $elem (@$arrayref) { 6364: if(ref($elem) eq 'ARRAY') { 6365: $result.=&arrayref2str($elem).'&'; 6366: } elsif(ref($elem) eq 'HASH') { 6367: $result.=&hashref2str($elem).'&'; 6368: } elsif(ref($elem)) { 6369: #print("Got a ref of ".(ref($elem))." skipping."); 6370: } else { 6371: $result.=&escape($elem).'&'; 6372: } 6373: } 6374: $result=~s/\&$//; 6375: $result .= '__END_ARRAY_REF__'; 6376: return $result; 6377: } 6378: 6379: sub hash2str { 6380: my (%hash) = @_; 6381: my $result=&hashref2str(\%hash); 6382: $result=~s/^__HASH_REF__//; 6383: $result=~s/__END_HASH_REF__$//; 6384: return $result; 6385: } 6386: 6387: sub hashref2str { 6388: my ($hashref)=@_; 6389: my $result='__HASH_REF__'; 6390: foreach my $key (sort(keys(%$hashref))) { 6391: if (ref($key) eq 'ARRAY') { 6392: $result.=&arrayref2str($key).'='; 6393: } elsif (ref($key) eq 'HASH') { 6394: $result.=&hashref2str($key).'='; 6395: } elsif (ref($key)) { 6396: $result.='='; 6397: #print("Got a ref of ".(ref($key))." skipping."); 6398: } else { 6399: if (defined($key)) {$result.=&escape($key).'=';} else { last; } 6400: } 6401: 6402: if(ref($hashref->{$key}) eq 'ARRAY') { 6403: $result.=&arrayref2str($hashref->{$key}).'&'; 6404: } elsif(ref($hashref->{$key}) eq 'HASH') { 6405: $result.=&hashref2str($hashref->{$key}).'&'; 6406: } elsif(ref($hashref->{$key})) { 6407: $result.='&'; 6408: #print("Got a ref of ".(ref($hashref->{$key}))." skipping."); 6409: } else { 6410: $result.=&escape($hashref->{$key}).'&'; 6411: } 6412: } 6413: $result=~s/\&$//; 6414: $result .= '__END_HASH_REF__'; 6415: return $result; 6416: } 6417: 6418: sub str2hash { 6419: my ($string)=@_; 6420: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__'); 6421: return %$hash; 6422: } 6423: 6424: sub str2hashref { 6425: my ($string) = @_; 6426: 6427: my %hash; 6428: 6429: if($string !~ /^__HASH_REF__/) { 6430: if (! ($string eq '' || !defined($string))) { 6431: $hash{'error'}='Not hash reference'; 6432: } 6433: return (\%hash, $string); 6434: } 6435: 6436: $string =~ s/^__HASH_REF__//; 6437: 6438: while($string !~ /^__END_HASH_REF__/) { 6439: #key 6440: my $key=''; 6441: if($string =~ /^__HASH_REF__/) { 6442: ($key, $string)=&str2hashref($string); 6443: if(defined($key->{'error'})) { 6444: $hash{'error'}='Bad data'; 6445: return (\%hash, $string); 6446: } 6447: } elsif($string =~ /^__ARRAY_REF__/) { 6448: ($key, $string)=&str2arrayref($string); 6449: if($key->[0] eq 'Array reference error') { 6450: $hash{'error'}='Bad data'; 6451: return (\%hash, $string); 6452: } 6453: } else { 6454: $string =~ s/^(.*?)=//; 6455: $key=&unescape($1); 6456: } 6457: $string =~ s/^=//; 6458: 6459: #value 6460: my $value=''; 6461: if($string =~ /^__HASH_REF__/) { 6462: ($value, $string)=&str2hashref($string); 6463: if(defined($value->{'error'})) { 6464: $hash{'error'}='Bad data'; 6465: return (\%hash, $string); 6466: } 6467: } elsif($string =~ /^__ARRAY_REF__/) { 6468: ($value, $string)=&str2arrayref($string); 6469: if($value->[0] eq 'Array reference error') { 6470: $hash{'error'}='Bad data'; 6471: return (\%hash, $string); 6472: } 6473: } else { 6474: $value=&get_scalar(\$string,'__END_HASH_REF__'); 6475: } 6476: $string =~ s/^&//; 6477: 6478: $hash{$key}=$value; 6479: } 6480: 6481: $string =~ s/^__END_HASH_REF__//; 6482: 6483: return (\%hash, $string); 6484: } 6485: 6486: sub str2array { 6487: my ($string)=@_; 6488: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__'); 6489: return @$array; 6490: } 6491: 6492: sub str2arrayref { 6493: my ($string) = @_; 6494: my @array; 6495: 6496: if($string !~ /^__ARRAY_REF__/) { 6497: if (! ($string eq '' || !defined($string))) { 6498: $array[0]='Array reference error'; 6499: } 6500: return (\@array, $string); 6501: } 6502: 6503: $string =~ s/^__ARRAY_REF__//; 6504: 6505: while($string !~ /^__END_ARRAY_REF__/) { 6506: my $value=''; 6507: if($string =~ /^__HASH_REF__/) { 6508: ($value, $string)=&str2hashref($string); 6509: if(defined($value->{'error'})) { 6510: $array[0] ='Array reference error'; 6511: return (\@array, $string); 6512: } 6513: } elsif($string =~ /^__ARRAY_REF__/) { 6514: ($value, $string)=&str2arrayref($string); 6515: if($value->[0] eq 'Array reference error') { 6516: $array[0] ='Array reference error'; 6517: return (\@array, $string); 6518: } 6519: } else { 6520: $value=&get_scalar(\$string,'__END_ARRAY_REF__'); 6521: } 6522: $string =~ s/^&//; 6523: 6524: push(@array, $value); 6525: } 6526: 6527: $string =~ s/^__END_ARRAY_REF__//; 6528: 6529: return (\@array, $string); 6530: } 6531: 6532: # -------------------------------------------------------------------Temp Store 6533: 6534: sub tmpreset { 6535: my ($symb,$namespace,$domain,$stuname) = @_; 6536: if (!$symb) { 6537: $symb=&symbread(); 6538: if (!$symb) { $symb= $env{'request.url'}; } 6539: } 6540: $symb=escape($symb); 6541: 6542: if (!$namespace) { $namespace=$env{'request.state'}; } 6543: $namespace=~s/\//\_/g; 6544: $namespace=~s/\W//g; 6545: 6546: if (!$domain) { $domain=$env{'user.domain'}; } 6547: if (!$stuname) { $stuname=$env{'user.name'}; } 6548: if ($domain eq 'public' && $stuname eq 'public') { 6549: $stuname=&get_requestor_ip(); 6550: } 6551: my $path=LONCAPA::tempdir(); 6552: my %hash; 6553: if (tie(%hash,'GDBM_File', 6554: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6555: &GDBM_WRCREAT(),0640)) { 6556: foreach my $key (keys(%hash)) { 6557: if ($key=~ /:$symb/) { 6558: delete($hash{$key}); 6559: } 6560: } 6561: } 6562: } 6563: 6564: sub tmpstore { 6565: my ($storehash,$symb,$namespace,$domain,$stuname) = @_; 6566: 6567: if (!$symb) { 6568: $symb=&symbread(); 6569: if (!$symb) { $symb= $env{'request.url'}; } 6570: } 6571: $symb=escape($symb); 6572: 6573: if (!$namespace) { 6574: # I don't think we would ever want to store this for a course. 6575: # it seems this will only be used if we don't have a course. 6576: #$namespace=$env{'request.course.id'}; 6577: #if (!$namespace) { 6578: $namespace=$env{'request.state'}; 6579: #} 6580: } 6581: $namespace=~s/\//\_/g; 6582: $namespace=~s/\W//g; 6583: if (!$domain) { $domain=$env{'user.domain'}; } 6584: if (!$stuname) { $stuname=$env{'user.name'}; } 6585: if ($domain eq 'public' && $stuname eq 'public') { 6586: $stuname=&get_requestor_ip(); 6587: } 6588: my $now=time; 6589: my %hash; 6590: my $path=LONCAPA::tempdir(); 6591: if (tie(%hash,'GDBM_File', 6592: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6593: &GDBM_WRCREAT(),0640)) { 6594: $hash{"version:$symb"}++; 6595: my $version=$hash{"version:$symb"}; 6596: my $allkeys=''; 6597: foreach my $key (keys(%$storehash)) { 6598: $allkeys.=$key.':'; 6599: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key}); 6600: } 6601: $hash{"$version:$symb:timestamp"}=$now; 6602: $allkeys.='timestamp'; 6603: $hash{"$version:keys:$symb"}=$allkeys; 6604: if (untie(%hash)) { 6605: return 'ok'; 6606: } else { 6607: return "error:$!"; 6608: } 6609: } else { 6610: return "error:$!"; 6611: } 6612: } 6613: 6614: # -----------------------------------------------------------------Temp Restore 6615: 6616: sub tmprestore { 6617: my ($symb,$namespace,$domain,$stuname) = @_; 6618: 6619: if (!$symb) { 6620: $symb=&symbread(); 6621: if (!$symb) { $symb= $env{'request.url'}; } 6622: } 6623: $symb=escape($symb); 6624: 6625: if (!$namespace) { $namespace=$env{'request.state'}; } 6626: 6627: if (!$domain) { $domain=$env{'user.domain'}; } 6628: if (!$stuname) { $stuname=$env{'user.name'}; } 6629: if ($domain eq 'public' && $stuname eq 'public') { 6630: $stuname=&get_requestor_ip(); 6631: } 6632: my %returnhash; 6633: $namespace=~s/\//\_/g; 6634: $namespace=~s/\W//g; 6635: my %hash; 6636: my $path=LONCAPA::tempdir(); 6637: if (tie(%hash,'GDBM_File', 6638: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6639: &GDBM_READER(),0640)) { 6640: my $version=$hash{"version:$symb"}; 6641: $returnhash{'version'}=$version; 6642: my $scope; 6643: for ($scope=1;$scope<=$version;$scope++) { 6644: my $vkeys=$hash{"$scope:keys:$symb"}; 6645: my @keys=split(/:/,$vkeys); 6646: my $key; 6647: $returnhash{"$scope:keys"}=$vkeys; 6648: foreach $key (@keys) { 6649: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); 6650: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); 6651: } 6652: } 6653: if (!(untie(%hash))) { 6654: return "error:$!"; 6655: } 6656: } else { 6657: return "error:$!"; 6658: } 6659: return %returnhash; 6660: } 6661: 6662: # ----------------------------------------------------------------------- Store 6663: 6664: sub store { 6665: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; 6666: my $home=''; 6667: 6668: if ($stuname) { $home=&homeserver($stuname,$domain); } 6669: 6670: $symb=&symbclean($symb); 6671: if (!$symb) { unless ($symb=&symbread()) { return ''; } } 6672: 6673: if (!$domain) { $domain=$env{'user.domain'}; } 6674: if (!$stuname) { $stuname=$env{'user.name'}; } 6675: 6676: &devalidate($symb,$stuname,$domain); 6677: 6678: $symb=escape($symb); 6679: if (!$namespace) { 6680: unless ($namespace=$env{'request.course.id'}) { 6681: return ''; 6682: } 6683: } 6684: if (!$home) { $home=$env{'user.home'}; } 6685: 6686: $$storehash{'ip'}=&get_requestor_ip(); 6687: $$storehash{'host'}=$perlvar{'lonHostID'}; 6688: 6689: my $namevalue=''; 6690: foreach my $key (keys(%$storehash)) { 6691: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 6692: } 6693: $namevalue=~s/\&$//; 6694: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue); 6695: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); 6696: } 6697: 6698: # -------------------------------------------------------------- Critical Store 6699: 6700: sub cstore { 6701: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; 6702: my $home=''; 6703: 6704: if ($stuname) { $home=&homeserver($stuname,$domain); } 6705: 6706: $symb=&symbclean($symb); 6707: if (!$symb) { unless ($symb=&symbread()) { return ''; } } 6708: 6709: if (!$domain) { $domain=$env{'user.domain'}; } 6710: if (!$stuname) { $stuname=$env{'user.name'}; } 6711: 6712: &devalidate($symb,$stuname,$domain); 6713: 6714: $symb=escape($symb); 6715: if (!$namespace) { 6716: unless ($namespace=$env{'request.course.id'}) { 6717: return ''; 6718: } 6719: } 6720: if (!$home) { $home=$env{'user.home'}; } 6721: 6722: $$storehash{'ip'}=&get_requestor_ip(); 6723: $$storehash{'host'}=$perlvar{'lonHostID'}; 6724: 6725: my $namevalue=''; 6726: foreach my $key (keys(%$storehash)) { 6727: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 6728: } 6729: $namevalue=~s/\&$//; 6730: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue); 6731: return critical 6732: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); 6733: } 6734: 6735: # --------------------------------------------------------------------- Restore 6736: 6737: sub restore { 6738: my ($symb,$namespace,$domain,$stuname) = @_; 6739: my $home=''; 6740: 6741: if ($stuname) { $home=&homeserver($stuname,$domain); } 6742: 6743: if (!$symb) { 6744: return if ($namespace eq 'courserequests'); 6745: unless ($symb=escape(&symbread())) { return ''; } 6746: } else { 6747: unless ($namespace eq 'courserequests') { 6748: $symb=&escape(&symbclean($symb)); 6749: } 6750: } 6751: if (!$namespace) { 6752: unless ($namespace=$env{'request.course.id'}) { 6753: return ''; 6754: } 6755: } 6756: if (!$domain) { $domain=$env{'user.domain'}; } 6757: if (!$stuname) { $stuname=$env{'user.name'}; } 6758: if (!$home) { $home=$env{'user.home'}; } 6759: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home"); 6760: 6761: my %returnhash=(); 6762: foreach my $line (split(/\&/,$answer)) { 6763: my ($name,$value)=split(/\=/,$line); 6764: $returnhash{&unescape($name)}=&thaw_unescape($value); 6765: } 6766: my $version; 6767: for ($version=1;$version<=$returnhash{'version'};$version++) { 6768: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) { 6769: $returnhash{$item}=$returnhash{$version.':'.$item}; 6770: } 6771: } 6772: return %returnhash; 6773: } 6774: 6775: # ---------------------------------------------------------- Course Description 6776: # 6777: # 6778: 6779: sub coursedescription { 6780: my ($courseid,$args)=@_; 6781: $courseid=~s/^\///; 6782: $courseid=~s/\_/\//g; 6783: my ($cdomain,$cnum)=split(/\//,$courseid); 6784: my $chome=&homeserver($cnum,$cdomain); 6785: my $normalid=$cdomain.'_'.$cnum; 6786: # need to always cache even if we get errors otherwise we keep 6787: # trying and trying and trying to get the course description. 6788: my %envhash=(); 6789: my %returnhash=(); 6790: 6791: my $expiretime=600; 6792: if ($env{'request.course.id'} eq $normalid) { 6793: $expiretime=120; 6794: } 6795: 6796: my $prefix='course.'.$cdomain.'_'.$cnum.'.'; 6797: if (!$args->{'freshen_cache'} 6798: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) { 6799: foreach my $key (keys(%env)) { 6800: next if ($key !~ /^\Q$prefix\E(.*)/); 6801: my ($setting) = $1; 6802: $returnhash{$setting} = $env{$key}; 6803: } 6804: return %returnhash; 6805: } 6806: 6807: # get the data again 6808: 6809: if (!$args->{'one_time'}) { 6810: $envhash{'course.'.$normalid.'.last_cache'}=time; 6811: } 6812: 6813: if ($chome ne 'no_host') { 6814: %returnhash=&dump('environment',$cdomain,$cnum); 6815: if (!exists($returnhash{'con_lost'})) { 6816: my $username = $env{'user.name'}; # Defult username 6817: if(defined $args->{'user'}) { 6818: $username = $args->{'user'}; 6819: } 6820: $returnhash{'home'}= $chome; 6821: $returnhash{'domain'} = $cdomain; 6822: $returnhash{'num'} = $cnum; 6823: if (!defined($returnhash{'type'})) { 6824: $returnhash{'type'} = 'Course'; 6825: } 6826: while (my ($name,$value) = each %returnhash) { 6827: $envhash{'course.'.$normalid.'.'.$name}=$value; 6828: } 6829: $returnhash{'url'}=&clutter($returnhash{'url'}); 6830: $returnhash{'fn'}=LONCAPA::tempdir() . 6831: $username.'_'.$cdomain.'_'.$cnum; 6832: $envhash{'course.'.$normalid.'.home'}=$chome; 6833: $envhash{'course.'.$normalid.'.domain'}=$cdomain; 6834: $envhash{'course.'.$normalid.'.num'}=$cnum; 6835: } 6836: } 6837: if (!$args->{'one_time'}) { 6838: &appenv(\%envhash); 6839: } 6840: return %returnhash; 6841: } 6842: 6843: sub update_released_required { 6844: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_; 6845: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') { 6846: $cid = $env{'request.course.id'}; 6847: $cdom = $env{'course.'.$cid.'.domain'}; 6848: $cnum = $env{'course.'.$cid.'.num'}; 6849: $chome = $env{'course.'.$cid.'.home'}; 6850: } 6851: if ($needsrelease) { 6852: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired'); 6853: my $needsupdate; 6854: if ($curr_reqd_hash{'internal.releaserequired'} eq '') { 6855: $needsupdate = 1; 6856: } else { 6857: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'}); 6858: my ($needsmajor,$needsminor) = split(/\./,$needsrelease); 6859: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) { 6860: $needsupdate = 1; 6861: } 6862: } 6863: if ($needsupdate) { 6864: my %needshash = ( 6865: 'internal.releaserequired' => $needsrelease, 6866: ); 6867: my $putresult = &put('environment',\%needshash,$cdom,$cnum); 6868: if ($putresult eq 'ok') { 6869: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease}); 6870: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); 6871: if (ref($crsinfo{$cid}) eq 'HASH') { 6872: $crsinfo{$cid}{'releaserequired'} = $needsrelease; 6873: &courseidput($cdom,\%crsinfo,$chome,'notime'); 6874: } 6875: } 6876: } 6877: } 6878: return; 6879: } 6880: 6881: # -------------------------------------------------See if a user is privileged 6882: 6883: sub privileged { 6884: my ($username,$domain,$possdomains,$possroles)=@_; 6885: my $now = time; 6886: my $roles; 6887: if (ref($possroles) eq 'ARRAY') { 6888: $roles = $possroles; 6889: } else { 6890: $roles = ['dc','su']; 6891: } 6892: if (ref($possdomains) eq 'ARRAY') { 6893: my %privileged = &privileged_by_domain($possdomains,$roles); 6894: foreach my $dom (@{$possdomains}) { 6895: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) && 6896: (ref($privileged{$dom}) eq 'HASH')) { 6897: foreach my $role (@{$roles}) { 6898: if (ref($privileged{$dom}{$role}) eq 'HASH') { 6899: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) { 6900: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain}); 6901: return 1 unless (($end && $end < $now) || 6902: ($start && $start > $now)); 6903: } 6904: } 6905: } 6906: } 6907: } 6908: } else { 6909: my %rolesdump = &dump("roles", $domain, $username) or return 0; 6910: my $now = time; 6911: 6912: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) { 6913: my ($trole, $tend, $tstart) = split(/_/, $role); 6914: if (grep(/^\Q$trole\E$/,@{$roles})) { 6915: return 1 unless ($tend && $tend < $now) 6916: or ($tstart && $tstart > $now); 6917: } 6918: } 6919: } 6920: return 0; 6921: } 6922: 6923: sub privileged_by_domain { 6924: my ($domains,$roles) = @_; 6925: my %privileged = (); 6926: my $cachetime = 60*60*24; 6927: my $now = time; 6928: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) { 6929: return %privileged; 6930: } 6931: foreach my $dom (@{$domains}) { 6932: next if (ref($privileged{$dom}) eq 'HASH'); 6933: my $needroles; 6934: foreach my $role (@{$roles}) { 6935: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom); 6936: if (defined($cached)) { 6937: if (ref($result) eq 'HASH') { 6938: $privileged{$dom}{$role} = $result; 6939: } 6940: } else { 6941: $needroles = 1; 6942: } 6943: } 6944: if ($needroles) { 6945: my %dompersonnel = &get_domain_roles($dom,$roles); 6946: $privileged{$dom} = {}; 6947: foreach my $server (keys(%dompersonnel)) { 6948: if (ref($dompersonnel{$server}) eq 'HASH') { 6949: foreach my $item (keys(%{$dompersonnel{$server}})) { 6950: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4); 6951: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item}); 6952: next if ($end && $end < $now); 6953: $privileged{$dom}{$trole}{$uname.':'.$udom} = 6954: $dompersonnel{$server}{$item}; 6955: } 6956: } 6957: } 6958: if (ref($privileged{$dom}) eq 'HASH') { 6959: foreach my $role (@{$roles}) { 6960: if (ref($privileged{$dom}{$role}) eq 'HASH') { 6961: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime); 6962: } else { 6963: my %hash = (); 6964: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime); 6965: } 6966: } 6967: } 6968: } 6969: } 6970: return %privileged; 6971: } 6972: 6973: # -------------------------------------------------------- Get user privileges 6974: 6975: sub rolesinit { 6976: my ($domain, $username) = @_; 6977: my %userroles = ('user.login.time' => time); 6978: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles; 6979: 6980: # firstaccess and timerinterval are related to timed maps/resources. 6981: # also, blocking can be triggered by an activating timer 6982: # it's saved in the user's %env. 6983: my %firstaccess = &dump('firstaccesstimes', $domain, $username); 6984: my %timerinterval = &dump('timerinterval', $domain, $username); 6985: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals, 6986: %timerintchk, %timerintenv, %coauthorenv); 6987: 6988: foreach my $key (keys(%firstaccess)) { 6989: my ($cid, $rest) = split(/\0/, $key); 6990: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key}; 6991: } 6992: 6993: foreach my $key (keys(%timerinterval)) { 6994: my ($cid,$rest) = split(/\0/,$key); 6995: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key}; 6996: } 6997: 6998: my %allroles=(); 6999: my %allgroups=(); 7000: my %gotcoauconfig=(); 7001: 7002: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) { 7003: my $role = $rolesdump{$area}; 7004: $area =~ s/\_\w\w$//; 7005: 7006: my ($trole, $tend, $tstart, $group_privs); 7007: 7008: if ($role =~ /^cr/) { 7009: # Custom role, defined by a user 7010: # e.g., user.role.cr/msu/smith/mynewrole 7011: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) { 7012: $trole = $1; 7013: ($tend, $tstart) = split('_', $2); 7014: } else { 7015: $trole = $role; 7016: } 7017: } elsif ($role =~ m|^gr/|) { 7018: # Role of member in a group, defined within a course/community 7019: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards 7020: ($trole, $tend, $tstart) = split(/_/, $role); 7021: next if $tstart eq '-1'; 7022: ($trole, $group_privs) = split(/\//, $trole); 7023: $group_privs = &unescape($group_privs); 7024: } else { 7025: # Just a normal role, defined in roles.tab 7026: ($trole, $tend, $tstart) = split(/_/,$role); 7027: } 7028: 7029: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain, 7030: $username); 7031: @userroles{keys(%new_role)} = @new_role{keys(%new_role)}; 7032: 7033: # role expired or not available yet? 7034: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or 7035: ($tstart != 0 && $tstart > $userroles{'user.login.time'}); 7036: 7037: next if $area eq '' or $trole eq ''; 7038: 7039: my $spec = "$trole.$area"; 7040: my ($tdummy, $tdomain, $trest) = split(/\//, $area); 7041: 7042: if ($trole =~ /^cr\//) { 7043: # Custom role, defined by a user 7044: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); 7045: } elsif ($trole eq 'gr') { 7046: # Role of a member in a group, defined within a course/community 7047: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart); 7048: next; 7049: } else { 7050: # Normal role, defined in roles.tab 7051: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); 7052: if (($trole eq 'ca') || ($trole eq 'aa')) { 7053: (undef,my ($audom,$auname)) = split(/\//,$area); 7054: unless ($gotcoauconfig{$area}) { 7055: my @ca_settings = ('authoreditors','coauthorlist','coauthoroptin'); 7056: my %info = &userenvironment($audom,$auname,@ca_settings); 7057: $gotcoauconfig{$area} = 1; 7058: foreach my $item (@ca_settings) { 7059: if (exists($info{$item})) { 7060: my $name = $item; 7061: if ($item eq 'authoreditors') { 7062: $name = 'editors'; 7063: } 7064: $coauthorenv{"environment.internal.$name.$area"} = $info{$item}; 7065: } 7066: } 7067: } 7068: } 7069: } 7070: 7071: my $cid = $tdomain.'_'.$trest; 7072: unless ($firstaccchk{$cid}) { 7073: if (ref($coursetimerstarts{$cid}) eq 'HASH') { 7074: foreach my $item (keys(%{$coursetimerstarts{$cid}})) { 7075: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} = 7076: $coursetimerstarts{$cid}{$item}; 7077: } 7078: } 7079: $firstaccchk{$cid} = 1; 7080: } 7081: unless ($timerintchk{$cid}) { 7082: if (ref($coursetimerintervals{$cid}) eq 'HASH') { 7083: foreach my $item (keys(%{$coursetimerintervals{$cid}})) { 7084: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} = 7085: $coursetimerintervals{$cid}{$item}; 7086: } 7087: } 7088: $timerintchk{$cid} = 1; 7089: } 7090: } 7091: 7092: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles, 7093: \%allroles, \%allgroups); 7094: $env{'user.adv'} = $userroles{'user.adv'}; 7095: $env{'user.rar'} = $userroles{'user.rar'}; 7096: 7097: return (\%userroles,\%firstaccenv,\%timerintenv,\%coauthorenv); 7098: } 7099: 7100: sub set_arearole { 7101: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_; 7102: unless ($nolog) { 7103: # log the associated role with the area 7104: &userrolelog($trole,$username,$domain,$area,$tstart,$tend); 7105: } 7106: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend); 7107: } 7108: 7109: sub custom_roleprivs { 7110: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_; 7111: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole); 7112: my $homsvr = &homeserver($rauthor,$rdomain); 7113: if (&hostname($homsvr) ne '') { 7114: my ($rdummy,$roledef)= 7115: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor); 7116: if (($rdummy ne 'con_lost') && ($roledef ne '')) { 7117: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef); 7118: if (defined($syspriv)) { 7119: if ($trest =~ /^$match_community$/) { 7120: $syspriv =~ s/bre\&S//; 7121: } 7122: $$allroles{'cm./'}.=':'.$syspriv; 7123: $$allroles{$spec.'./'}.=':'.$syspriv; 7124: } 7125: if ($tdomain ne '') { 7126: if (defined($dompriv)) { 7127: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv; 7128: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv; 7129: } 7130: if (($trest ne '') && (defined($coursepriv))) { 7131: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) { 7132: my $rolename = $1; 7133: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv); 7134: } 7135: $$allroles{'cm.'.$area}.=':'.$coursepriv; 7136: $$allroles{$spec.'.'.$area}.=':'.$coursepriv; 7137: } 7138: } 7139: } 7140: } 7141: } 7142: 7143: sub course_adhocrole_privs { 7144: my ($rolename,$cdom,$cnum,$coursepriv) = @_; 7145: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum); 7146: if ($overrides{"internal.adhocpriv.$rolename"}) { 7147: my (%currprivs,%storeprivs); 7148: foreach my $item (split(/:/,$coursepriv)) { 7149: my ($priv,$restrict) = split(/\&/,$item); 7150: $currprivs{$priv} = $restrict; 7151: } 7152: my (%possadd,%possremove,%full); 7153: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) { 7154: my ($priv,$restrict)=split(/\&/,$item); 7155: $full{$priv} = $restrict; 7156: } 7157: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) { 7158: next if ($item eq ''); 7159: my ($rule,$rest) = split(/=/,$item); 7160: next unless (($rule eq 'off') || ($rule eq 'on')); 7161: foreach my $priv (split(/:/,$rest)) { 7162: if ($priv ne '') { 7163: if ($rule eq 'off') { 7164: $possremove{$priv} = 1; 7165: } else { 7166: $possadd{$priv} = 1; 7167: } 7168: } 7169: } 7170: } 7171: foreach my $priv (sort(keys(%full))) { 7172: if (exists($currprivs{$priv})) { 7173: unless (exists($possremove{$priv})) { 7174: $storeprivs{$priv} = $currprivs{$priv}; 7175: } 7176: } elsif (exists($possadd{$priv})) { 7177: $storeprivs{$priv} = $full{$priv}; 7178: } 7179: } 7180: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs))); 7181: } 7182: return $coursepriv; 7183: } 7184: 7185: sub group_roleprivs { 7186: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_; 7187: my $access = 1; 7188: my $now = time; 7189: if (($tend!=0) && ($tend<$now)) { $access = 0; } 7190: if (($tstart!=0) && ($tstart>$now)) { $access=0; } 7191: if ($access) { 7192: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|); 7193: $$allgroups{$course}{$group} .=':'.$group_privs; 7194: } 7195: } 7196: 7197: sub standard_roleprivs { 7198: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_; 7199: if (defined($pr{$trole.':s'})) { 7200: $$allroles{'cm./'}.=':'.$pr{$trole.':s'}; 7201: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'}; 7202: } 7203: if ($tdomain ne '') { 7204: if (defined($pr{$trole.':d'})) { 7205: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; 7206: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; 7207: } 7208: if (($trest ne '') && (defined($pr{$trole.':c'}))) { 7209: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'}; 7210: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'}; 7211: } 7212: } 7213: } 7214: 7215: sub set_userprivs { 7216: my ($userroles,$allroles,$allgroups,$groups_roles) = @_; 7217: my $author=0; 7218: my $adv=0; 7219: my $rar=0; 7220: my %grouproles = (); 7221: if (keys(%{$allgroups}) > 0) { 7222: my @groupkeys; 7223: foreach my $role (keys(%{$allroles})) { 7224: push(@groupkeys,$role); 7225: } 7226: if (ref($groups_roles) eq 'HASH') { 7227: foreach my $key (keys(%{$groups_roles})) { 7228: unless (grep(/^\Q$key\E$/,@groupkeys)) { 7229: push(@groupkeys,$key); 7230: } 7231: } 7232: } 7233: if (@groupkeys > 0) { 7234: foreach my $role (@groupkeys) { 7235: my ($trole,$area,$sec,$extendedarea); 7236: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) { 7237: $trole = $1; 7238: $area = $2; 7239: $sec = $3; 7240: $extendedarea = $area.$sec; 7241: if (exists($$allgroups{$area})) { 7242: foreach my $group (keys(%{$$allgroups{$area}})) { 7243: my $spec = $trole.'.'.$extendedarea; 7244: $grouproles{$spec.'.'.$area.'/'.$group} = 7245: $$allgroups{$area}{$group}; 7246: } 7247: } 7248: } 7249: } 7250: } 7251: } 7252: foreach my $group (keys(%grouproles)) { 7253: $$allroles{$group} = $grouproles{$group}; 7254: } 7255: foreach my $role (keys(%{$allroles})) { 7256: my %thesepriv; 7257: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; } 7258: foreach my $item (split(/:/,$$allroles{$role})) { 7259: if ($item ne '') { 7260: my ($privilege,$restrictions)=split(/&/,$item); 7261: if ($restrictions eq '') { 7262: $thesepriv{$privilege}='F'; 7263: } elsif ($thesepriv{$privilege} ne 'F') { 7264: $thesepriv{$privilege}.=$restrictions; 7265: } 7266: if ($thesepriv{'adv'} eq 'F') { $adv=1; } 7267: if ($thesepriv{'rar'} eq 'F') { $rar=1; } 7268: } 7269: } 7270: my $thesestr=''; 7271: foreach my $priv (sort(keys(%thesepriv))) { 7272: $thesestr.=':'.$priv.'&'.$thesepriv{$priv}; 7273: } 7274: $userroles->{'user.priv.'.$role} = $thesestr; 7275: } 7276: return ($author,$adv,$rar); 7277: } 7278: 7279: sub role_status { 7280: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_; 7281: if (exists($env{$rolekey}) && $env{$rolekey} ne '') { 7282: my ($one,$two) = split(m{\./},$rolekey,2); 7283: (undef,undef,$$role) = split(/\./,$one,3); 7284: unless (!defined($$role) || $$role eq '') { 7285: $$where = '/'.$two; 7286: $$trolecode=$$role.'.'.$$where; 7287: ($$tstart,$$tend)=split(/\./,$env{$rolekey}); 7288: $$tstatus='is'; 7289: if ($$tstart && $$tstart>$update) { 7290: $$tstatus='future'; 7291: if ($$tstart<$now) { 7292: if ($$tstart && $$tstart>$refresh) { 7293: if (($$where ne '') && ($$role ne '')) { 7294: my (%allroles,%allgroups,$group_privs, 7295: %groups_roles,@rolecodes); 7296: my %userroles = ( 7297: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend 7298: ); 7299: @rolecodes = ('cm'); 7300: my $spec=$$role.'.'.$$where; 7301: my ($tdummy,$tdomain,$trest)=split(/\//,$$where); 7302: if ($$role =~ /^cr\//) { 7303: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where); 7304: push(@rolecodes,'cr'); 7305: } elsif ($$role eq 'gr') { 7306: push(@rolecodes,$$role); 7307: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'}, 7308: $env{'user.name'}); 7309: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2); 7310: (undef,my $group_privs) = split(/\//,$trole); 7311: $group_privs = &unescape($group_privs); 7312: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart); 7313: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1); 7314: &get_groups_roles($tdomain,$trest, 7315: \%course_roles,\@rolecodes, 7316: \%groups_roles); 7317: } else { 7318: push(@rolecodes,$$role); 7319: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where); 7320: } 7321: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups, 7322: \%groups_roles); 7323: &appenv(\%userroles,\@rolecodes); 7324: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); 7325: } 7326: } 7327: $$tstatus = 'is'; 7328: } 7329: } 7330: if ($$tend) { 7331: if ($$tend<$update) { 7332: $$tstatus='expired'; 7333: } elsif ($$tend<$now) { 7334: $$tstatus='will_not'; 7335: } 7336: } 7337: } 7338: } 7339: } 7340: 7341: sub get_groups_roles { 7342: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_; 7343: return unless((ref($cdom_courseroles) eq 'HASH') && 7344: (ref($rolecodes) eq 'ARRAY') && 7345: (ref($groups_roles) eq 'HASH')); 7346: if (keys(%{$cdom_courseroles}) > 0) { 7347: my ($cnum) = ($rest =~ /^($match_courseid)/); 7348: if ($cdom ne '' && $cnum ne '') { 7349: foreach my $key (keys(%{$cdom_courseroles})) { 7350: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) { 7351: my $crsrole = $1; 7352: my $crssec = $2; 7353: if ($crsrole =~ /^cr/) { 7354: unless (grep(/^cr$/,@{$rolecodes})) { 7355: push(@{$rolecodes},'cr'); 7356: } 7357: } else { 7358: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) { 7359: push(@{$rolecodes},$crsrole); 7360: } 7361: } 7362: my $rolekey = "$crsrole./$cdom/$cnum"; 7363: if ($crssec ne '') { 7364: $rolekey .= "/$crssec"; 7365: } 7366: $rolekey .= './'; 7367: $groups_roles->{$rolekey} = $rolecodes; 7368: } 7369: } 7370: } 7371: } 7372: return; 7373: } 7374: 7375: sub delete_env_groupprivs { 7376: my ($where,$courseroles,$possroles) = @_; 7377: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY')); 7378: my ($dummy,$udom,$uname,$group) = split(/\//,$where); 7379: unless (ref($courseroles->{$udom}) eq 'HASH') { 7380: %{$courseroles->{$udom}} = 7381: &get_my_roles('','','userroles',['active'], 7382: $possroles,[$udom],1); 7383: } 7384: if (ref($courseroles->{$udom}) eq 'HASH') { 7385: foreach my $item (keys(%{$courseroles->{$udom}})) { 7386: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item); 7387: my $area = '/'.$cdom.'/'.$cnum; 7388: my $privkey = "user.priv.$crsrole.$area"; 7389: if ($crssec ne '') { 7390: $privkey .= '/'.$crssec; 7391: } 7392: $privkey .= ".$area/$group"; 7393: &Apache::lonnet::delenv($privkey,undef,[$crsrole]); 7394: } 7395: } 7396: return; 7397: } 7398: 7399: sub check_adhoc_privs { 7400: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_; 7401: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum; 7402: if ($sec) { 7403: $cckey .= '/'.$sec; 7404: } 7405: my $setprivs; 7406: if ($env{$cckey}) { 7407: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend); 7408: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend); 7409: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) { 7410: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); 7411: $setprivs = 1; 7412: } 7413: } else { 7414: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); 7415: $setprivs = 1; 7416: } 7417: return $setprivs; 7418: } 7419: 7420: sub set_adhoc_privileges { 7421: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role 7422: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_; 7423: my $area = '/'.$dcdom.'/'.$pickedcourse; 7424: if ($sec ne '') { 7425: $area .= '/'.$sec; 7426: } 7427: my $spec = $role.'.'.$area; 7428: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'}, 7429: $env{'user.name'},1); 7430: my %rolehash = (); 7431: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) { 7432: my $rolename = $1; 7433: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area); 7434: my %domdef = &get_domain_defaults($dcdom); 7435: if (ref($domdef{'adhocroles'}) eq 'HASH') { 7436: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') { 7437: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},}); 7438: } 7439: } 7440: } else { 7441: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area); 7442: } 7443: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash); 7444: &appenv(\%userroles,[$role,'cm']); 7445: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); 7446: unless (($caller eq 'constructaccess' && $env{'request.course.id'}) || 7447: ($caller eq 'tiny')) { 7448: &appenv( {'request.role' => $spec, 7449: 'request.role.domain' => $dcdom, 7450: 'request.course.sec' => $sec, 7451: } 7452: ); 7453: my $tadv=0; 7454: if (&allowed('adv') eq 'F') { $tadv=1; } 7455: &appenv({'request.role.adv' => $tadv}); 7456: } 7457: } 7458: 7459: # --------------------------------------------------------------- get interface 7460: 7461: sub get { 7462: my ($namespace,$storearr,$udomain,$uname)=@_; 7463: my $items=''; 7464: foreach my $item (@$storearr) { 7465: $items.=&escape($item).'&'; 7466: } 7467: $items=~s/\&$//; 7468: if (!$udomain) { $udomain=$env{'user.domain'}; } 7469: if (!$uname) { $uname=$env{'user.name'}; } 7470: my $uhome=&homeserver($uname,$udomain); 7471: 7472: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome); 7473: my @pairs=split(/\&/,$rep); 7474: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) { 7475: return @pairs; 7476: } 7477: my %returnhash=(); 7478: my $i=0; 7479: foreach my $item (@$storearr) { 7480: $returnhash{$item}=&thaw_unescape($pairs[$i]); 7481: $i++; 7482: } 7483: return %returnhash; 7484: } 7485: 7486: # --------------------------------------------------------------- del interface 7487: 7488: sub del { 7489: my ($namespace,$storearr,$udomain,$uname)=@_; 7490: my $items=''; 7491: foreach my $item (@$storearr) { 7492: $items.=&escape($item).'&'; 7493: } 7494: 7495: $items=~s/\&$//; 7496: if (!$udomain) { $udomain=$env{'user.domain'}; } 7497: if (!$uname) { $uname=$env{'user.name'}; } 7498: my $uhome=&homeserver($uname,$udomain); 7499: return &reply("del:$udomain:$uname:$namespace:$items",$uhome); 7500: } 7501: 7502: # -------------------------------------------------------------- dump interface 7503: 7504: sub unserialize { 7505: my ($rep, $escapedkeys) = @_; 7506: 7507: return {} if $rep =~ /^error/; 7508: 7509: my %returnhash=(); 7510: foreach my $item (split(/\&/,$rep)) { 7511: my ($key, $value) = split(/=/, $item, 2); 7512: $key = unescape($key) unless $escapedkeys; 7513: next if $key =~ /^error: 2 /; 7514: $returnhash{$key} = &thaw_unescape($value); 7515: } 7516: #return %returnhash; 7517: return \%returnhash; 7518: } 7519: 7520: # see Lond::dump_with_regexp 7521: # if $escapedkeys hash keys won't get unescaped. 7522: sub dump { 7523: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys,$encrypt)=@_; 7524: if (!$udomain) { $udomain=$env{'user.domain'}; } 7525: if (!$uname) { $uname=$env{'user.name'}; } 7526: my $uhome=&homeserver($uname,$udomain); 7527: 7528: if ($regexp) { 7529: $regexp=&escape($regexp); 7530: } else { 7531: $regexp='.'; 7532: } 7533: if (grep { $_ eq $uhome } current_machine_ids()) { 7534: # user is hosted on this machine 7535: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain, 7536: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'}); 7537: return %{unserialize($reply, $escapedkeys)}; 7538: } 7539: my $rep; 7540: if ($encrypt) { 7541: $rep=&reply("encrypt:edump:$udomain:$uname:$namespace:$regexp:$range",$uhome); 7542: } else { 7543: $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome); 7544: } 7545: my @pairs=split(/\&/,$rep); 7546: my %returnhash=(); 7547: if (!($rep =~ /^error/ )) { 7548: foreach my $item (@pairs) { 7549: my ($key,$value)=split(/=/,$item,2); 7550: $key = unescape($key) unless $escapedkeys; 7551: #$key = &unescape($key); 7552: next if ($key =~ /^error: 2 /); 7553: $returnhash{$key}=&thaw_unescape($value); 7554: } 7555: } 7556: return %returnhash; 7557: } 7558: 7559: 7560: # --------------------------------------------------------- dumpstore interface 7561: 7562: sub dumpstore { 7563: my ($namespace,$udomain,$uname,$regexp,$range)=@_; 7564: # same as dump but keys must be escaped. They may contain colon separated 7565: # lists of values that may themself contain colons (e.g. symbs). 7566: return &dump($namespace, $udomain, $uname, $regexp, $range, 1); 7567: } 7568: 7569: # -------------------------------------------------------------- keys interface 7570: 7571: sub getkeys { 7572: my ($namespace,$udomain,$uname)=@_; 7573: if (!$udomain) { $udomain=$env{'user.domain'}; } 7574: if (!$uname) { $uname=$env{'user.name'}; } 7575: my $uhome=&homeserver($uname,$udomain); 7576: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome); 7577: my @keyarray=(); 7578: foreach my $key (split(/\&/,$rep)) { 7579: next if ($key =~ /^error: 2 /); 7580: push(@keyarray,&unescape($key)); 7581: } 7582: return @keyarray; 7583: } 7584: 7585: # --------------------------------------------------------------- currentdump 7586: sub currentdump { 7587: my ($courseid,$sdom,$sname)=@_; 7588: $courseid = $env{'request.course.id'} if (! defined($courseid)); 7589: $sdom = $env{'user.domain'} if (! defined($sdom)); 7590: $sname = $env{'user.name'} if (! defined($sname)); 7591: my $uhome = &homeserver($sname,$sdom); 7592: my $rep; 7593: 7594: if (grep { $_ eq $uhome } current_machine_ids()) { 7595: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname, 7596: $courseid))); 7597: } else { 7598: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome); 7599: } 7600: 7601: return if ($rep =~ /^(error:|no_such_host)/); 7602: # 7603: my %returnhash=(); 7604: # 7605: if ($rep eq 'unknown_cmd') { 7606: # an old lond will not know currentdump 7607: # Do a dump and make it look like a currentdump 7608: my @tmp = &dumpstore($courseid,$sdom,$sname,'.'); 7609: return if ($tmp[0] =~ /^(error:|no_such_host)/); 7610: my %hash = @tmp; 7611: @tmp=(); 7612: %returnhash = %{&convert_dump_to_currentdump(\%hash)}; 7613: } else { 7614: my @pairs=split(/\&/,$rep); 7615: foreach my $pair (@pairs) { 7616: my ($key,$value)=split(/=/,$pair,2); 7617: my ($symb,$param) = split(/:/,$key); 7618: $returnhash{&unescape($symb)}->{&unescape($param)} = 7619: &thaw_unescape($value); 7620: } 7621: } 7622: return %returnhash; 7623: } 7624: 7625: sub convert_dump_to_currentdump{ 7626: my %hash = %{shift()}; 7627: my %returnhash; 7628: # Code ripped from lond, essentially. The only difference 7629: # here is the unescaping done by lonnet::dump(). Conceivably 7630: # we might run in to problems with parameter names =~ /^v\./ 7631: while (my ($key,$value) = each(%hash)) { 7632: my ($v,$symb,$param) = split(/:/,$key); 7633: $symb = &unescape($symb); 7634: $param = &unescape($param); 7635: next if ($v eq 'version' || $symb eq 'keys'); 7636: next if (exists($returnhash{$symb}) && 7637: exists($returnhash{$symb}->{$param}) && 7638: $returnhash{$symb}->{'v.'.$param} > $v); 7639: $returnhash{$symb}->{$param}=$value; 7640: $returnhash{$symb}->{'v.'.$param}=$v; 7641: } 7642: # 7643: # Remove all of the keys in the hashes which keep track of 7644: # the version of the parameter. 7645: while (my ($symb,$param_hash) = each(%returnhash)) { 7646: # use a foreach because we are going to delete from the hash. 7647: foreach my $key (keys(%$param_hash)) { 7648: delete($param_hash->{$key}) if ($key =~ /^v\./); 7649: } 7650: } 7651: return \%returnhash; 7652: } 7653: 7654: # ------------------------------------------------------ critical inc interface 7655: 7656: sub cinc { 7657: return &inc(@_,'critical'); 7658: } 7659: 7660: # --------------------------------------------------------------- inc interface 7661: 7662: sub inc { 7663: my ($namespace,$store,$udomain,$uname,$critical) = @_; 7664: if (!$udomain) { $udomain=$env{'user.domain'}; } 7665: if (!$uname) { $uname=$env{'user.name'}; } 7666: my $uhome=&homeserver($uname,$udomain); 7667: my $items=''; 7668: if (! ref($store)) { 7669: # got a single value, so use that instead 7670: $items = &escape($store).'=&'; 7671: } elsif (ref($store) eq 'SCALAR') { 7672: $items = &escape($$store).'=&'; 7673: } elsif (ref($store) eq 'ARRAY') { 7674: $items = join('=&',map {&escape($_);} @{$store}); 7675: } elsif (ref($store) eq 'HASH') { 7676: while (my($key,$value) = each(%{$store})) { 7677: $items.= &escape($key).'='.&escape($value).'&'; 7678: } 7679: } 7680: $items=~s/\&$//; 7681: if ($critical) { 7682: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome); 7683: } else { 7684: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome); 7685: } 7686: } 7687: 7688: # --------------------------------------------------------------- put interface 7689: 7690: sub put { 7691: my ($namespace,$storehash,$udomain,$uname,$encrypt)=@_; 7692: if (!$udomain) { $udomain=$env{'user.domain'}; } 7693: if (!$uname) { $uname=$env{'user.name'}; } 7694: my $uhome=&homeserver($uname,$udomain); 7695: my $items=''; 7696: foreach my $item (keys(%$storehash)) { 7697: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7698: } 7699: $items=~s/\&$//; 7700: if ($encrypt) { 7701: return &reply("encrypt:put:$udomain:$uname:$namespace:$items",$uhome); 7702: } else { 7703: return &reply("put:$udomain:$uname:$namespace:$items",$uhome); 7704: } 7705: } 7706: 7707: # ------------------------------------------------------------ newput interface 7708: 7709: sub newput { 7710: my ($namespace,$storehash,$udomain,$uname)=@_; 7711: if (!$udomain) { $udomain=$env{'user.domain'}; } 7712: if (!$uname) { $uname=$env{'user.name'}; } 7713: my $uhome=&homeserver($uname,$udomain); 7714: my $items=''; 7715: foreach my $key (keys(%$storehash)) { 7716: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 7717: } 7718: $items=~s/\&$//; 7719: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome); 7720: } 7721: 7722: # --------------------------------------------------------- putstore interface 7723: 7724: sub putstore { 7725: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_; 7726: if (!$udomain) { $udomain=$env{'user.domain'}; } 7727: if (!$uname) { $uname=$env{'user.name'}; } 7728: my $uhome=&homeserver($uname,$udomain); 7729: my $items=''; 7730: foreach my $key (keys(%$storehash)) { 7731: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&'; 7732: } 7733: $items=~s/\&$//; 7734: my $esc_symb=&escape($symb); 7735: my $esc_v=&escape($version); 7736: my $reply = 7737: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items", 7738: $uhome); 7739: if (($tolog) && ($reply eq 'ok')) { 7740: my $namevalue=''; 7741: foreach my $key (keys(%{$storehash})) { 7742: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&'; 7743: } 7744: my $ip = &get_requestor_ip(); 7745: $namevalue .= 'ip='.&escape($ip). 7746: '&host='.&escape($perlvar{'lonHostID'}). 7747: '&version='.$esc_v. 7748: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'}); 7749: &courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue); 7750: } 7751: if ($reply eq 'unknown_cmd') { 7752: # gfall back to way things use to be done 7753: return &old_putstore($namespace,$symb,$version,$storehash,$udomain, 7754: $uname); 7755: } 7756: return $reply; 7757: } 7758: 7759: sub old_putstore { 7760: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_; 7761: if (!$udomain) { $udomain=$env{'user.domain'}; } 7762: if (!$uname) { $uname=$env{'user.name'}; } 7763: my $uhome=&homeserver($uname,$udomain); 7764: my %newstorehash; 7765: foreach my $item (keys(%$storehash)) { 7766: my $key = $version.':'.&escape($symb).':'.$item; 7767: $newstorehash{$key} = $storehash->{$item}; 7768: } 7769: my $items=''; 7770: my %allitems = (); 7771: foreach my $item (keys(%newstorehash)) { 7772: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) { 7773: my $key = $1.':keys:'.$2; 7774: $allitems{$key} .= $3.':'; 7775: } 7776: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&'; 7777: } 7778: foreach my $item (keys(%allitems)) { 7779: $allitems{$item} =~ s/\:$//; 7780: $items.= $item.'='.$allitems{$item}.'&'; 7781: } 7782: $items=~s/\&$//; 7783: return &reply("put:$udomain:$uname:$namespace:$items",$uhome); 7784: } 7785: 7786: # ------------------------------------------------------ critical put interface 7787: 7788: sub cput { 7789: my ($namespace,$storehash,$udomain,$uname)=@_; 7790: if (!$udomain) { $udomain=$env{'user.domain'}; } 7791: if (!$uname) { $uname=$env{'user.name'}; } 7792: my $uhome=&homeserver($uname,$udomain); 7793: my $items=''; 7794: foreach my $item (keys(%$storehash)) { 7795: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7796: } 7797: $items=~s/\&$//; 7798: return &critical("put:$udomain:$uname:$namespace:$items",$uhome); 7799: } 7800: 7801: # -------------------------------------------------------------- eget interface 7802: 7803: sub eget { 7804: my ($namespace,$storearr,$udomain,$uname)=@_; 7805: my $items=''; 7806: foreach my $item (@$storearr) { 7807: $items.=&escape($item).'&'; 7808: } 7809: $items=~s/\&$//; 7810: if (!$udomain) { $udomain=$env{'user.domain'}; } 7811: if (!$uname) { $uname=$env{'user.name'}; } 7812: my $uhome=&homeserver($uname,$udomain); 7813: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome); 7814: my @pairs=split(/\&/,$rep); 7815: my %returnhash=(); 7816: my $i=0; 7817: foreach my $item (@$storearr) { 7818: $returnhash{$item}=&thaw_unescape($pairs[$i]); 7819: $i++; 7820: } 7821: return %returnhash; 7822: } 7823: 7824: # ------------------------------------------------------------ tmpput interface 7825: sub tmpput { 7826: my ($storehash,$server,$context)=@_; 7827: my $items=''; 7828: foreach my $item (keys(%$storehash)) { 7829: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7830: } 7831: $items=~s/\&$//; 7832: if (defined($context)) { 7833: $items .= ':'.&escape($context); 7834: } 7835: return &reply("tmpput:$items",$server); 7836: } 7837: 7838: # ------------------------------------------------------------ tmpget interface 7839: sub tmpget { 7840: my ($token,$server)=@_; 7841: if (!defined($server)) { $server = $perlvar{'lonHostID'}; } 7842: my $rep=&reply("tmpget:$token",$server); 7843: my %returnhash; 7844: if ($rep =~ /^(con_lost|error|no_such_host)/i) { 7845: return %returnhash; 7846: } 7847: foreach my $item (split(/\&/,$rep)) { 7848: my ($key,$value)=split(/=/,$item); 7849: $returnhash{&unescape($key)}=&thaw_unescape($value); 7850: } 7851: return %returnhash; 7852: } 7853: 7854: # ------------------------------------------------------------ tmpdel interface 7855: sub tmpdel { 7856: my ($token,$server)=@_; 7857: if (!defined($server)) { $server = $perlvar{'lonHostID'}; } 7858: return &reply("tmpdel:$token",$server); 7859: } 7860: 7861: # ------------------------------------------------------------ get_timebased_id 7862: 7863: sub get_timebased_id { 7864: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries, 7865: $maxtries) = @_; 7866: my ($newid,$error,$dellock); 7867: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) { 7868: return ('','ok','invalid call to get suffix'); 7869: } 7870: 7871: # set defaults for any optional args for which values were not supplied 7872: if ($who eq '') { 7873: $who = $env{'user.name'}.':'.$env{'user.domain'}; 7874: } 7875: if (!$locktries) { 7876: $locktries = 3; 7877: } 7878: if (!$maxtries) { 7879: $maxtries = 10; 7880: } 7881: 7882: if (($cdom eq '') || ($cnum eq '')) { 7883: if ($env{'request.course.id'}) { 7884: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 7885: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 7886: } 7887: if (($cdom eq '') || ($cnum eq '')) { 7888: return ('','ok','call to get suffix not in course context'); 7889: } 7890: } 7891: 7892: # construct locking item 7893: my $lockhash = { 7894: $prefix."\0".'locked_'.$keyid => $who, 7895: }; 7896: my $tries = 0; 7897: 7898: # attempt to get lock on nohist_$namespace file 7899: my $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); 7900: while (($gotlock ne 'ok') && $tries <$locktries) { 7901: $tries ++; 7902: sleep 1; 7903: $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); 7904: } 7905: 7906: # attempt to get unique identifier, based on current timestamp 7907: if ($gotlock eq 'ok') { 7908: my %inuse = &dump('nohist_'.$namespace,$cdom,$cnum,$prefix); 7909: my $id = time; 7910: $newid = $id; 7911: if ($idtype eq 'addcode') { 7912: $newid .= &sixnum_code(); 7913: } 7914: my $idtries = 0; 7915: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) { 7916: if ($idtype eq 'concat') { 7917: $newid = $id.$idtries; 7918: } elsif ($idtype eq 'addcode') { 7919: $newid = $newid.&sixnum_code(); 7920: } else { 7921: $newid ++; 7922: } 7923: $idtries ++; 7924: } 7925: if (!exists($inuse{$prefix."\0".$newid})) { 7926: my %new_item = ( 7927: $prefix."\0".$newid => $who, 7928: ); 7929: my $putresult = &put('nohist_'.$namespace,\%new_item, 7930: $cdom,$cnum); 7931: if ($putresult ne 'ok') { 7932: undef($newid); 7933: $error = 'error saving new item: '.$putresult; 7934: } 7935: } else { 7936: undef($newid); 7937: $error = ('error: no unique suffix available for the new item '); 7938: } 7939: # remove lock 7940: my @del_lock = ($prefix."\0".'locked_'.$keyid); 7941: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum); 7942: } else { 7943: $error = "error: could not obtain lockfile\n"; 7944: $dellock = 'ok'; 7945: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) { 7946: $dellock = 'nolock'; 7947: } 7948: } 7949: return ($newid,$dellock,$error); 7950: } 7951: 7952: sub sixnum_code { 7953: my $code; 7954: for (0..6) { 7955: $code .= int( rand(9) ); 7956: } 7957: return $code; 7958: } 7959: 7960: # -------------------------------------------------- portfolio access checking 7961: 7962: sub portfolio_access { 7963: my ($requrl,$clientip) = @_; 7964: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl); 7965: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip); 7966: if ($result) { 7967: my %setters; 7968: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { 7969: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) = 7970: &Apache::loncommon::blockcheck(\%setters,'port',$clientip,$unum,$udom); 7971: if (($startblock && $endblock) || ($by_ip)) { 7972: return 'B'; 7973: } 7974: } else { 7975: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) = 7976: &Apache::loncommon::blockcheck(\%setters,'port',$clientip); 7977: if (($startblock && $endblock) || ($by_ip)) { 7978: return 'B'; 7979: } 7980: } 7981: } 7982: if ($result eq 'ok') { 7983: return 'F'; 7984: } elsif ($result =~ /^[^:]+:guest_/) { 7985: return 'A'; 7986: } 7987: return ''; 7988: } 7989: 7990: sub get_portfolio_access { 7991: my ($udom,$unum,$file_name,$group,$clientip,$access_hash,$portaccessref) = @_; 7992: 7993: if (!ref($access_hash)) { 7994: my $current_perms = &get_portfile_permissions($udom,$unum); 7995: my %access_controls = &get_access_controls($current_perms,$group, 7996: $file_name); 7997: $access_hash = $access_controls{$file_name}; 7998: } 7999: 8000: my $portaccess; 8001: if (ref($portaccess) eq 'SCALAR') { 8002: $portaccess = $$portaccessref; 8003: } else { 8004: $portaccess = &usertools_access($unum,$udom,'portaccess',undef,'tools'); 8005: } 8006: 8007: my ($public,$guest,@domains,@users,@courses,@groups,@ips,@userips); 8008: my $now = time; 8009: if (ref($access_hash) eq 'HASH') { 8010: foreach my $key (keys(%{$access_hash})) { 8011: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); 8012: next if (($scope ne 'ip') && ($portaccess == 0)); 8013: if ($start > $now) { 8014: next; 8015: } 8016: if ($end && $end<$now) { 8017: next; 8018: } 8019: if ($scope eq 'public') { 8020: $public = $key; 8021: last; 8022: } elsif ($scope eq 'guest') { 8023: $guest = $key; 8024: } elsif ($scope eq 'domains') { 8025: push(@domains,$key); 8026: } elsif ($scope eq 'users') { 8027: push(@users,$key); 8028: } elsif ($scope eq 'course') { 8029: push(@courses,$key); 8030: } elsif ($scope eq 'group') { 8031: push(@groups,$key); 8032: } elsif ($scope eq 'ip') { 8033: push(@ips,$key); 8034: } elsif ($scope eq 'userip') { 8035: push(@userips,$key); 8036: } 8037: } 8038: if ($public) { 8039: return 'ok'; 8040: } elsif (@ips > 0) { 8041: my $allowed; 8042: foreach my $ipkey (@ips) { 8043: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') { 8044: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) { 8045: $allowed = 1; 8046: last; 8047: } 8048: } 8049: } 8050: if ($allowed) { 8051: return 'ok'; 8052: } 8053: } elsif (@userips > 0) { 8054: my $allowed; 8055: foreach my $useripkey (@userips) { 8056: if (ref($access_hash->{$useripkey}{'ip'}) eq 'ARRAY') { 8057: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$useripkey}{'ip'}}),$clientip)) { 8058: $allowed = 1; 8059: last; 8060: } 8061: } 8062: } 8063: if ($allowed) { 8064: return 'ok'; 8065: } 8066: } 8067: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { 8068: if ($guest) { 8069: return $guest; 8070: } 8071: } else { 8072: if (@domains > 0) { 8073: foreach my $domkey (@domains) { 8074: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') { 8075: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) { 8076: return 'ok'; 8077: } 8078: } 8079: } 8080: } 8081: if (@users > 0) { 8082: foreach my $userkey (@users) { 8083: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') { 8084: foreach my $item (@{$access_hash->{$userkey}{'users'}}) { 8085: if (ref($item) eq 'HASH') { 8086: if (($item->{'uname'} eq $env{'user.name'}) && 8087: ($item->{'udom'} eq $env{'user.domain'})) { 8088: return 'ok'; 8089: } 8090: } 8091: } 8092: } 8093: } 8094: } 8095: my %roleshash; 8096: my @courses_and_groups = @courses; 8097: push(@courses_and_groups,@groups); 8098: if (@courses_and_groups > 0) { 8099: my (%allgroups,%allroles); 8100: my ($start,$end,$role,$sec,$group); 8101: foreach my $envkey (%env) { 8102: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) { 8103: my $cid = $2.'_'.$3; 8104: if ($1 eq 'gr') { 8105: $group = $4; 8106: $allgroups{$cid}{$group} = $env{$envkey}; 8107: } else { 8108: if ($4 eq '') { 8109: $sec = 'none'; 8110: } else { 8111: $sec = $4; 8112: } 8113: $allroles{$cid}{$1}{$sec} = $env{$envkey}; 8114: } 8115: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) { 8116: my $cid = $2.'_'.$3; 8117: if ($4 eq '') { 8118: $sec = 'none'; 8119: } else { 8120: $sec = $4; 8121: } 8122: $allroles{$cid}{$1}{$sec} = $env{$envkey}; 8123: } 8124: } 8125: if (keys(%allroles) == 0) { 8126: return; 8127: } 8128: foreach my $key (@courses_and_groups) { 8129: my %content = %{$$access_hash{$key}}; 8130: my $cnum = $content{'number'}; 8131: my $cdom = $content{'domain'}; 8132: my $cid = $cdom.'_'.$cnum; 8133: if (!exists($allroles{$cid})) { 8134: next; 8135: } 8136: foreach my $role_id (keys(%{$content{'roles'}})) { 8137: my @sections = @{$content{'roles'}{$role_id}{'section'}}; 8138: my @groups = @{$content{'roles'}{$role_id}{'group'}}; 8139: my @status = @{$content{'roles'}{$role_id}{'access'}}; 8140: my @roles = @{$content{'roles'}{$role_id}{'role'}}; 8141: foreach my $role (keys(%{$allroles{$cid}})) { 8142: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) { 8143: foreach my $sec (keys(%{$allroles{$cid}{$role}})) { 8144: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') { 8145: if (grep/^all$/,@sections) { 8146: return 'ok'; 8147: } else { 8148: if (grep/^$sec$/,@sections) { 8149: return 'ok'; 8150: } 8151: } 8152: } 8153: } 8154: if (keys(%{$allgroups{$cid}}) == 0) { 8155: if (grep/^none$/,@groups) { 8156: return 'ok'; 8157: } 8158: } else { 8159: if (grep/^all$/,@groups) { 8160: return 'ok'; 8161: } 8162: foreach my $group (keys(%{$allgroups{$cid}})) { 8163: if (grep/^$group$/,@groups) { 8164: return 'ok'; 8165: } 8166: } 8167: } 8168: } 8169: } 8170: } 8171: } 8172: } 8173: if ($guest) { 8174: return $guest; 8175: } 8176: } 8177: } 8178: return; 8179: } 8180: 8181: sub course_group_datechecker { 8182: my ($dates,$now,$status) = @_; 8183: my ($start,$end) = split(/\./,$dates); 8184: if (!$start && !$end) { 8185: return 'ok'; 8186: } 8187: if (grep/^active$/,@{$status}) { 8188: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) { 8189: return 'ok'; 8190: } 8191: } 8192: if (grep/^previous$/,@{$status}) { 8193: if ($end > $now ) { 8194: return 'ok'; 8195: } 8196: } 8197: if (grep/^future$/,@{$status}) { 8198: if ($start > $now) { 8199: return 'ok'; 8200: } 8201: } 8202: return; 8203: } 8204: 8205: sub parse_portfolio_url { 8206: my ($url) = @_; 8207: 8208: my ($type,$udom,$unum,$group,$file_name); 8209: 8210: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) { 8211: $type = 1; 8212: $udom = $1; 8213: $unum = $2; 8214: $file_name = $3; 8215: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) { 8216: $type = 2; 8217: $udom = $1; 8218: $unum = $2; 8219: $group = $3; 8220: $file_name = $3.'/'.$4; 8221: } 8222: if (wantarray) { 8223: return ($type,$udom,$unum,$file_name,$group); 8224: } 8225: return $type; 8226: } 8227: 8228: sub is_portfolio_url { 8229: my ($url) = @_; 8230: return scalar(&parse_portfolio_url($url)); 8231: } 8232: 8233: sub is_portfolio_file { 8234: my ($file) = @_; 8235: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) { 8236: return 1; 8237: } 8238: return; 8239: } 8240: 8241: sub is_coursetool_logo { 8242: my ($uri) = @_; 8243: if ($env{'request.course.id'}) { 8244: my $courseurl = &courseid_to_courseurl($env{'request.course.id'}); 8245: if ($uri =~ m{^/*uploaded\Q$courseurl\E/toollogo/\d+/[^/]+$}) { 8246: return 1; 8247: } 8248: } 8249: return; 8250: } 8251: 8252: sub usertools_access { 8253: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_; 8254: my ($access,%tools); 8255: if ($context eq '') { 8256: $context = 'tools'; 8257: } 8258: if ($context eq 'requestcourses') { 8259: %tools = ( 8260: official => 1, 8261: unofficial => 1, 8262: community => 1, 8263: textbook => 1, 8264: placement => 1, 8265: lti => 1, 8266: ); 8267: } elsif ($context eq 'requestauthor') { 8268: %tools = ( 8269: requestauthor => 1, 8270: ); 8271: } elsif ($context eq 'authordefaults') { 8272: %tools = ( 8273: webdav => 1, 8274: ); 8275: } else { 8276: %tools = ( 8277: aboutme => 1, 8278: blog => 1, 8279: portfolio => 1, 8280: portaccess => 1, 8281: timezone => 1, 8282: ); 8283: } 8284: return if (!defined($tools{$tool})); 8285: 8286: if (($udom eq '') || ($uname eq '')) { 8287: $udom = $env{'user.domain'}; 8288: $uname = $env{'user.name'}; 8289: } 8290: 8291: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 8292: if ($action ne 'reload') { 8293: if ($context eq 'requestcourses') { 8294: return $env{'environment.canrequest.'.$tool}; 8295: } elsif ($context eq 'requestauthor') { 8296: return $env{'environment.canrequest.author'}; 8297: } elsif ($context eq 'authordefaults') { 8298: if ($tool eq 'webdav') { 8299: return $env{'environment.availabletools.'.$tool}; 8300: } 8301: } else { 8302: return $env{'environment.availabletools.'.$tool}; 8303: } 8304: } 8305: } 8306: 8307: my ($toolstatus,$inststatus,$envkey); 8308: if ($context eq 'requestauthor') { 8309: $envkey = $context; 8310: } elsif ($context eq 'authordefaults') { 8311: if ($tool eq 'webdav') { 8312: $envkey = 'tools.'.$tool; 8313: } 8314: } else { 8315: $envkey = $context.'.'.$tool; 8316: } 8317: 8318: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && 8319: ($action ne 'reload')) { 8320: $toolstatus = $env{'environment.'.$envkey}; 8321: $inststatus = $env{'environment.inststatus'}; 8322: } else { 8323: if (ref($userenvref) eq 'HASH') { 8324: $toolstatus = $userenvref->{$envkey}; 8325: $inststatus = $userenvref->{'inststatus'}; 8326: } else { 8327: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus'); 8328: $toolstatus = $userenv{$envkey}; 8329: $inststatus = $userenv{'inststatus'}; 8330: } 8331: } 8332: 8333: if ($toolstatus ne '') { 8334: if ($toolstatus) { 8335: $access = 1; 8336: } else { 8337: $access = 0; 8338: } 8339: return $access; 8340: } 8341: 8342: my ($is_adv,%domdef); 8343: if (ref($is_advref) eq 'HASH') { 8344: $is_adv = $is_advref->{'is_adv'}; 8345: } else { 8346: $is_adv = &is_advanced_user($udom,$uname); 8347: } 8348: if (ref($domdefref) eq 'HASH') { 8349: %domdef = %{$domdefref}; 8350: } else { 8351: %domdef = &get_domain_defaults($udom); 8352: } 8353: if (ref($domdef{$tool}) eq 'HASH') { 8354: if ($is_adv) { 8355: if ($domdef{$tool}{'_LC_adv'} ne '') { 8356: if ($domdef{$tool}{'_LC_adv'}) { 8357: $access = 1; 8358: } else { 8359: $access = 0; 8360: } 8361: return $access; 8362: } 8363: } 8364: if ($inststatus ne '') { 8365: my ($hasaccess,$hasnoaccess); 8366: foreach my $affiliation (split(/:/,$inststatus)) { 8367: if ($domdef{$tool}{$affiliation} ne '') { 8368: if ($domdef{$tool}{$affiliation}) { 8369: $hasaccess = 1; 8370: } else { 8371: $hasnoaccess = 1; 8372: } 8373: } 8374: } 8375: if ($hasaccess || $hasnoaccess) { 8376: if ($hasaccess) { 8377: $access = 1; 8378: } elsif ($hasnoaccess) { 8379: $access = 0; 8380: } 8381: return $access; 8382: } 8383: } else { 8384: if ($domdef{$tool}{'default'} ne '') { 8385: if ($domdef{$tool}{'default'}) { 8386: $access = 1; 8387: } elsif ($domdef{$tool}{'default'} == 0) { 8388: $access = 0; 8389: } 8390: return $access; 8391: } 8392: } 8393: } else { 8394: if (($context eq 'tools') && ($tool ne 'webdav')) { 8395: $access = 1; 8396: } else { 8397: $access = 0; 8398: } 8399: return $access; 8400: } 8401: } 8402: 8403: sub is_course_owner { 8404: my ($cdom,$cnum,$udom,$uname) = @_; 8405: if (($udom eq '') || ($uname eq '')) { 8406: $udom = $env{'user.domain'}; 8407: $uname = $env{'user.name'}; 8408: } 8409: unless (($udom eq '') || ($uname eq '')) { 8410: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) { 8411: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) { 8412: return 1; 8413: } else { 8414: my %courseinfo = &coursedescription($cdom.'/'.$cnum); 8415: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) { 8416: return 1; 8417: } 8418: } 8419: } 8420: } 8421: return; 8422: } 8423: 8424: sub is_advanced_user { 8425: my ($udom,$uname,$nocache) = @_; 8426: my ($is_adv,$is_author,$use_cache,$hashid); 8427: if ($udom ne '' && $uname ne '') { 8428: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 8429: if (wantarray) { 8430: return ($env{'user.adv'},$env{'user.author'}); 8431: } else { 8432: return $env{'user.adv'}; 8433: } 8434: } elsif (!$nocache) { 8435: $use_cache = 1; 8436: $hashid = "$udom:$uname"; 8437: my ($info,$cached)=&is_cached_new('isadvau',$hashid); 8438: if ($cached) { 8439: ($is_adv,$is_author) = split(/:/,$info); 8440: if (wantarray) { 8441: return ($is_adv,$is_author); 8442: } 8443: return $is_adv; 8444: } 8445: } 8446: } 8447: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1); 8448: my %allroles; 8449: foreach my $role (keys(%roleshash)) { 8450: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role); 8451: my $area = '/'.$tdomain.'/'.$trest; 8452: if ($sec ne '') { 8453: $area .= '/'.$sec; 8454: } 8455: if (($area ne '') && ($trole ne '')) { 8456: my $spec=$trole.'.'.$area; 8457: if ($trole =~ /^cr\//) { 8458: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); 8459: } elsif ($trole ne 'gr') { 8460: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); 8461: } 8462: if ($trole eq 'au') { 8463: $is_author = 1; 8464: } 8465: } 8466: } 8467: foreach my $role (keys(%allroles)) { 8468: last if ($is_adv); 8469: foreach my $item (split(/:/,$allroles{$role})) { 8470: if ($item ne '') { 8471: my ($privilege,$restrictions)=split(/&/,$item); 8472: if ($privilege eq 'adv') { 8473: $is_adv = 1; 8474: last; 8475: } 8476: } 8477: } 8478: } 8479: if ($use_cache) { 8480: my $cachetime = 600; 8481: &do_cache_new('isadvau',$hashid,$is_adv.':'.$is_author,$cachetime); 8482: } 8483: if (wantarray) { 8484: return ($is_adv,$is_author); 8485: } 8486: return $is_adv; 8487: } 8488: 8489: sub check_can_request { 8490: my ($dom,$can_request,$request_domains,$uname,$udom) = @_; 8491: my $canreq = 0; 8492: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { 8493: $uname = $env{'user.name'}; 8494: $udom = $env{'user.domain'}; 8495: } 8496: my ($types,$typename) = &Apache::loncommon::course_types(); 8497: my @options = ('approval','validate','autolimit'); 8498: my $optregex = join('|',@options); 8499: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) { 8500: my %willtrust; 8501: foreach my $type (@{$types}) { 8502: if (&usertools_access($uname,$udom,$type,undef, 8503: 'requestcourses')) { 8504: $canreq ++; 8505: if (ref($request_domains) eq 'HASH') { 8506: push(@{$request_domains->{$type}},$udom); 8507: } 8508: if ($dom eq $udom) { 8509: $can_request->{$type} = 1; 8510: } 8511: } 8512: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') && 8513: ($env{'environment.reqcrsotherdom.'.$type} ne '')) { 8514: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type}); 8515: if (@curr > 0) { 8516: foreach my $item (@curr) { 8517: if (ref($request_domains) eq 'HASH') { 8518: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/); 8519: if ($otherdom ne '') { 8520: unless (exists($willtrust{$otherdom})) { 8521: $willtrust{$otherdom} = &will_trust('reqcrs',$env{'user.domain'},$otherdom); 8522: } 8523: if ($willtrust{$otherdom}) { 8524: if (ref($request_domains->{$type}) eq 'ARRAY') { 8525: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) { 8526: push(@{$request_domains->{$type}},$otherdom); 8527: } 8528: } else { 8529: push(@{$request_domains->{$type}},$otherdom); 8530: } 8531: } 8532: } 8533: } 8534: } 8535: unless ($dom eq $env{'user.domain'}) { 8536: $canreq ++; 8537: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) { 8538: $can_request->{$type} = 1; 8539: } 8540: } 8541: } 8542: } 8543: } 8544: } 8545: return $canreq; 8546: } 8547: 8548: # ---------------------------------------------- Custom access rule evaluation 8549: 8550: sub customaccess { 8551: my ($priv,$uri)=@_; 8552: my ($urole,$urealm)=split(/\./,$env{'request.role'},2); 8553: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm); 8554: $udom = &LONCAPA::clean_domain($udom); 8555: $ucrs = &LONCAPA::clean_username($ucrs); 8556: my $access=0; 8557: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) { 8558: my ($effect,$realm,$role,$type)=split(/\:/,$right); 8559: if ($type eq 'user') { 8560: foreach my $scope (split(/\s*\,\s*/,$realm)) { 8561: my ($tdom,$tuname)=split(m{/},$scope); 8562: if ($tdom) { 8563: if ($tdom ne $env{'user.domain'}) { next; } 8564: } 8565: if ($tuname) { 8566: if ($tuname ne $env{'user.name'}) { next; } 8567: } 8568: $access=($effect eq 'allow'); 8569: last; 8570: } 8571: } else { 8572: if ($role) { 8573: if ($role ne $urole) { next; } 8574: } 8575: foreach my $scope (split(/\s*\,\s*/,$realm)) { 8576: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope); 8577: if ($tdom) { 8578: if ($tdom ne $udom) { next; } 8579: } 8580: if ($tcrs) { 8581: if ($tcrs ne $ucrs) { next; } 8582: } 8583: if ($tsec) { 8584: if ($tsec ne $usec) { next; } 8585: } 8586: $access=($effect eq 'allow'); 8587: last; 8588: } 8589: if ($realm eq '' && $role eq '') { 8590: $access=($effect eq 'allow'); 8591: } 8592: } 8593: } 8594: return $access; 8595: } 8596: 8597: # ------------------------------------------------- Check for a user privilege 8598: 8599: sub allowed { 8600: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache,$nodeeplinkcheck,$nodeeplinkout)=@_; 8601: my $ver_orguri=$uri; 8602: $uri=&deversion($uri); 8603: my $orguri=$uri; 8604: $uri=&declutter($uri); 8605: 8606: if ($priv eq 'evb') { 8607: # Evade communication block restrictions for specified role in a course or domain 8608: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) { 8609: return $1; 8610: } else { 8611: return; 8612: } 8613: } 8614: 8615: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; } 8616: # Free bre access to adm and meta resources 8617: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|viewclasslist|aboutme|ext\.tool)$})) 8618: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) )) 8619: && ($priv eq 'bre')) { 8620: return 'F'; 8621: } 8622: 8623: # Free bre access to user's own portfolio contents 8624: my ($space,$domain,$name,@dir)=split('/',$uri); 8625: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) && 8626: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) { 8627: my %setters; 8628: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) = 8629: &Apache::loncommon::blockcheck(\%setters,'port',$clientip); 8630: if (($startblock && $endblock) || ($by_ip)) { 8631: return 'B'; 8632: } else { 8633: return 'F'; 8634: } 8635: } 8636: 8637: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course. 8638: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups') 8639: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) { 8640: if (exists($env{'request.course.id'})) { 8641: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8642: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 8643: if (($domain eq $cdom) && ($name eq $cnum)) { 8644: my $courseprivid=$env{'request.course.id'}; 8645: $courseprivid=~s/\_/\//; 8646: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid 8647: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) { 8648: return $1; 8649: } else { 8650: if ($env{'request.course.sec'}) { 8651: $courseprivid.='/'.$env{'request.course.sec'}; 8652: } 8653: if ($env{'user.priv.'.$env{'request.role'}.'./'. 8654: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) { 8655: return $2; 8656: } 8657: } 8658: } 8659: } 8660: } 8661: 8662: # Free bre to public access 8663: 8664: if ($priv eq 'bre') { 8665: my $copyright; 8666: unless ($uri =~ /ext\.tool/) { 8667: $copyright=&metadata($uri,'copyright'); 8668: } 8669: if (($copyright eq 'public') && (!$env{'request.course.id'})) { 8670: return 'F'; 8671: } 8672: if ($copyright eq 'priv') { 8673: $uri=~/([^\/]+)\/([^\/]+)\//; 8674: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) { 8675: return ''; 8676: } 8677: } 8678: if ($copyright eq 'domain') { 8679: $uri=~/([^\/]+)\/([^\/]+)\//; 8680: unless (($env{'user.domain'} eq $1) || 8681: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) { 8682: return ''; 8683: } 8684: } 8685: if ($env{'request.role'}=~ /li\.\//) { 8686: # Library role, so allow browsing of resources in this domain. 8687: return 'F'; 8688: } 8689: if ($copyright eq 'custom') { 8690: unless (&customaccess($priv,$uri)) { return ''; } 8691: } 8692: } 8693: # Domain coordinator is trying to create a course 8694: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) { 8695: # uri is the requested domain in this case. 8696: # comparison to 'request.role.domain' shows if the user has selected 8697: # a role of dc for the domain in question. 8698: return 'F' if ($uri eq $env{'request.role.domain'}); 8699: } 8700: 8701: my $thisallowed=''; 8702: my $statecond=0; 8703: my $courseprivid=''; 8704: 8705: my $ownaccess; 8706: # Community Coordinator or Assistant Co-author browsing resource space. 8707: if (($priv eq 'bro') && ($env{'user.author'})) { 8708: if ($uri eq '') { 8709: $ownaccess = 1; 8710: } else { 8711: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) { 8712: my $udom = $env{'user.domain'}; 8713: my $uname = $env{'user.name'}; 8714: if ($uri =~ m{^\Q$udom\E/?$}) { 8715: $ownaccess = 1; 8716: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) { 8717: unless ($uri =~ m{\.\./}) { 8718: $ownaccess = 1; 8719: } 8720: } elsif (($udom ne 'public') && ($uname ne 'public')) { 8721: my $now = time; 8722: if ($uri =~ m{^([^/]+)/?$}) { 8723: my $adom = $1; 8724: foreach my $key (keys(%env)) { 8725: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) { 8726: my ($start,$end) = split(/\./,$env{$key}); 8727: if (($now >= $start) && (!$end || $end > $now)) { 8728: $ownaccess = 1; 8729: last; 8730: } 8731: } 8732: } 8733: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) { 8734: my $adom = $1; 8735: my $aname = $2; 8736: foreach my $role ('ca','aa') { 8737: if ($env{"user.role.$role./$adom/$aname"}) { 8738: my ($start,$end) = 8739: split(/\./,$env{"user.role.$role./$adom/$aname"}); 8740: if (($now >= $start) && (!$end || $end > $now)) { 8741: $ownaccess = 1; 8742: last; 8743: } 8744: } 8745: } 8746: } 8747: } 8748: } 8749: } 8750: } 8751: 8752: # Course 8753: 8754: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) { 8755: unless (($priv eq 'bro') && (!$ownaccess)) { 8756: $thisallowed.=$1; 8757: } 8758: } 8759: 8760: # Domain 8761: 8762: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} 8763: =~/\Q$priv\E\&([^\:]*)/) { 8764: unless (($priv eq 'bro') && (!$ownaccess)) { 8765: $thisallowed.=$1; 8766: } 8767: } 8768: 8769: # User who is not author or co-author might still be able to edit 8770: # resource of an author in the domain (e.g., if Domain Coordinator). 8771: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) && 8772: (&allowed('mdc',$env{'request.course.id'}))) { 8773: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) { 8774: $thisallowed.=$1; 8775: } 8776: } 8777: 8778: # Course: uri itself is a course 8779: my $courseuri=$uri; 8780: $courseuri=~s/\_(\d)/\/$1/; 8781: $courseuri=~s/^([^\/])/\/$1/; 8782: 8783: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri} 8784: =~/\Q$priv\E\&([^\:]*)/) { 8785: if ($priv eq 'mip') { 8786: my $rem = $1; 8787: if (($uri ne '') && ($env{'request.course.id'} eq $uri) && 8788: ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) { 8789: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8790: if ($cdom ne '') { 8791: my %passwdconf = &get_passwdconf($cdom); 8792: if (ref($passwdconf{'crsownerchg'}) eq 'HASH') { 8793: if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') { 8794: if (@{$passwdconf{'crsownerchg'}{'by'}}) { 8795: my @inststatuses = split(':',$env{'environment.inststatus'}); 8796: unless (@inststatuses) { 8797: @inststatuses = ('default'); 8798: } 8799: foreach my $status (@inststatuses) { 8800: if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) { 8801: $thisallowed.=$rem; 8802: } 8803: } 8804: } 8805: } 8806: } 8807: } 8808: } 8809: } else { 8810: unless (($priv eq 'bro') && (!$ownaccess)) { 8811: $thisallowed.=$1; 8812: } 8813: } 8814: } 8815: 8816: # URI is an uploaded document for this course, default permissions don't matter 8817: # not allowing 'edit' access (editupload) to uploaded course docs 8818: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) { 8819: $thisallowed=''; 8820: my ($match)=&is_on_map($uri); 8821: if ($match) { 8822: if ($env{'user.priv.'.$env{'request.role'}.'./'} 8823: =~/\Q$priv\E\&([^\:]*)/) { 8824: my $value = $1; 8825: my $deeplinkblock; 8826: unless ($nodeeplinkcheck) { 8827: $deeplinkblock = &deeplink_check($priv,$symb,$uri); 8828: } 8829: if ($deeplinkblock) { 8830: $thisallowed='D'; 8831: } elsif ($noblockcheck) { 8832: $thisallowed.=$value; 8833: } else { 8834: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); 8835: if (@blockers > 0) { 8836: $thisallowed = 'B'; 8837: } else { 8838: $thisallowed.=$value; 8839: } 8840: } 8841: } 8842: } else { 8843: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri}; 8844: if ($refuri) { 8845: if ($refuri =~ m|^/adm/|) { 8846: $thisallowed='F'; 8847: } else { 8848: $refuri=&declutter($refuri); 8849: my ($match) = &is_on_map($refuri); 8850: if ($match) { 8851: my $deeplinkblock; 8852: unless ($nodeeplinkcheck) { 8853: $deeplinkblock = &deeplink_check($priv,$symb,$refuri); 8854: } 8855: if ($deeplinkblock) { 8856: $thisallowed='D'; 8857: } elsif ($noblockcheck) { 8858: $thisallowed='F'; 8859: } else { 8860: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); 8861: if (@blockers > 0) { 8862: $thisallowed = 'B'; 8863: } else { 8864: $thisallowed='F'; 8865: } 8866: } 8867: } 8868: } 8869: } 8870: } 8871: } 8872: 8873: if ($priv eq 'bre' 8874: && $thisallowed ne 'F' 8875: && $thisallowed ne '2' 8876: && &is_portfolio_url($uri)) { 8877: $thisallowed = &portfolio_access($uri,$clientip); 8878: } 8879: 8880: # Full access at system, domain or course-wide level? Exit. 8881: if ($thisallowed=~/F/) { 8882: return 'F'; 8883: } 8884: 8885: # If this is generating or modifying users, exit with special codes 8886: 8887: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:vca:vaa:'=~/\:\Q$priv\E\:/) { 8888: if (($priv eq 'cca') || ($priv eq 'caa')) { 8889: my ($audom,$auname)=split('/',$uri); 8890: # no author name given, so this just checks on the general right to make a co-author in this domain 8891: unless ($auname) { return $thisallowed; } 8892: # an author name is given, so we are about to actually make a co-author for a certain account 8893: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) || 8894: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) && 8895: ($audom ne $env{'request.role.domain'}))) { return ''; } 8896: } elsif (($priv eq 'vca') || ($priv eq 'vaa')) { 8897: my ($audom,$auname)=split('/',$uri); 8898: unless ($auname) { return $thisallowed; } 8899: unless (($env{'request.role'} eq "dc./$audom") || 8900: ($env{'request.role'} eq "ca./$uri")) { 8901: return ''; 8902: } 8903: } 8904: return $thisallowed; 8905: } 8906: # 8907: # Gathered so far: system, domain and course wide privileges 8908: # 8909: # Course: See if uri or referer is an individual resource that is part of 8910: # the course 8911: 8912: if ($env{'request.course.id'}) { 8913: 8914: if ($priv eq 'bre') { 8915: if (&is_coursetool_logo($uri)) { 8916: return 'F'; 8917: } 8918: } 8919: 8920: # If this is modifying password (internal auth) domains must match for user and user's role. 8921: 8922: if ($priv eq 'mip') { 8923: if ($env{'user.domain'} eq $env{'request.role.domain'}) { 8924: return $thisallowed; 8925: } else { 8926: return ''; 8927: } 8928: } 8929: 8930: $courseprivid=$env{'request.course.id'}; 8931: if ($env{'request.course.sec'}) { 8932: $courseprivid.='/'.$env{'request.course.sec'}; 8933: } 8934: $courseprivid=~s/\_/\//; 8935: my $checkreferer=1; 8936: my ($match,$cond)=&is_on_map($uri); 8937: if ($match) { 8938: $statecond=$cond; 8939: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} 8940: =~/\Q$priv\E\&([^\:]*)/) { 8941: my $value = $1; 8942: if ($priv eq 'bre') { 8943: my $deeplinkblock; 8944: unless ($nodeeplinkcheck) { 8945: $deeplinkblock = &deeplink_check($priv,$symb,$uri); 8946: } 8947: if ($deeplinkblock) { 8948: $thisallowed = 'D'; 8949: } elsif ($noblockcheck) { 8950: $thisallowed.=$value; 8951: } else { 8952: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); 8953: if (@blockers > 0) { 8954: $thisallowed = 'B'; 8955: } else { 8956: $thisallowed.=$value; 8957: } 8958: } 8959: } else { 8960: $thisallowed.=$value; 8961: } 8962: $checkreferer=0; 8963: } 8964: } 8965: 8966: if ($checkreferer) { 8967: my $refuri=$env{'httpref.'.$orguri}; 8968: unless ($refuri) { 8969: foreach my $key (keys(%env)) { 8970: if ($key=~/^httpref\..*\*/) { 8971: my $pattern=$key; 8972: $pattern=~s/^httpref\.\/res\///; 8973: $pattern=~s/\*/\[\^\/\]\+/g; 8974: $pattern=~s/\//\\\//g; 8975: if ($orguri=~/$pattern/) { 8976: $refuri=$env{$key}; 8977: } 8978: } 8979: } 8980: } 8981: 8982: if ($refuri) { 8983: $refuri=&declutter($refuri); 8984: my ($match,$cond)=&is_on_map($refuri); 8985: if ($match) { 8986: my $refstatecond=$cond; 8987: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} 8988: =~/\Q$priv\E\&([^\:]*)/) { 8989: my $value = $1; 8990: if ($priv eq 'bre') { 8991: my $deeplinkblock; 8992: unless ($nodeeplinkcheck) { 8993: $deeplinkblock = &deeplink_check($priv,$symb,$refuri); 8994: } 8995: if ($deeplinkblock) { 8996: $thisallowed = 'D'; 8997: } elsif ($noblockcheck) { 8998: $thisallowed.=$value; 8999: } else { 9000: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); 9001: if (@blockers > 0) { 9002: $thisallowed = 'B'; 9003: } else { 9004: $thisallowed.=$value; 9005: } 9006: } 9007: } else { 9008: $thisallowed.=$value; 9009: } 9010: $uri=$refuri; 9011: $statecond=$refstatecond; 9012: } 9013: } 9014: } 9015: } 9016: } 9017: 9018: # 9019: # Gathered now: all privileges that could apply, and condition number 9020: # 9021: # 9022: # Full or no access? 9023: # 9024: 9025: if ($thisallowed=~/F/) { 9026: return 'F'; 9027: } 9028: 9029: unless ($thisallowed) { 9030: return ''; 9031: } 9032: 9033: # Restrictions exist, deal with them 9034: # 9035: # C:according to course preferences 9036: # R:according to resource settings 9037: # L:unless locked 9038: # X:according to user session state 9039: # 9040: 9041: # Possibly locked functionality, check all courses 9042: # In roles.tab, L (unless locked) available for bre, pch, plc, pac and sma. 9043: # Locks might take effect only after 10 minutes cache expiration for other 9044: # courses, and 2 minutes for current course, in which user has st or ta role 9045: # which is neither expired nor a future role (unless current course). 9046: 9047: my ($needlockcheck,$now,$crsonly); 9048: if ($thisallowed=~/L/) { 9049: $now = time; 9050: if ($priv eq 'bre') { 9051: if ($uri ne '') { 9052: if ($orguri =~ m{^/+res/}) { 9053: if ($uri =~ m{^lib/templates/}) { 9054: if ($env{'request.course.id'}) { 9055: $crsonly = 1; 9056: $needlockcheck = 1; 9057: } 9058: } else { 9059: $needlockcheck = 1; 9060: } 9061: } elsif ($env{'request.course.id'}) { 9062: my ($crsdom,$crsnum) = split('_',$env{'request.course.id'}); 9063: if (($uri =~ m{^(adm|uploaded|public)/$crsdom/$crsnum/}) || 9064: ($uri =~ m{^adm/$match_domain/$match_username/\d+/(smppg|bulletinboard)$})) { 9065: $crsonly = 1; 9066: } 9067: $needlockcheck = 1; 9068: } 9069: } 9070: } elsif (($priv eq 'pch') || ($priv eq 'plc') || ($priv eq 'pac') || ($priv eq 'sma')) { 9071: $needlockcheck = 1; 9072: } 9073: } 9074: if ($needlockcheck) { 9075: foreach my $envkey (keys(%env)) { 9076: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) { 9077: my $courseid=$2; 9078: my $roleid=$1.'.'.$2; 9079: $courseid=~s/^\///; 9080: unless ($env{'request.role'} eq $roleid) { 9081: my ($start,$end) = split(/\./,$env{$envkey}); 9082: next unless (($now >= $start) && (!$end || $end > $now)); 9083: } 9084: my $expiretime=600; 9085: if ($env{'request.role'} eq $roleid) { 9086: $expiretime=120; 9087: } 9088: my ($cdom,$cnum,$csec)=split(/\//,$courseid); 9089: my $prefix='course.'.$cdom.'_'.$cnum.'.'; 9090: if ((time-$env{$prefix.'last_cache'})>$expiretime) { 9091: &coursedescription($courseid,{'freshen_cache' => 1}); 9092: } 9093: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/) 9094: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { 9095: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) { 9096: &log($env{'user.domain'},$env{'user.name'}, 9097: $env{'user.home'}, 9098: 'Locked by res: '.$priv.' for '.$uri.' due to '. 9099: $cdom.'/'.$cnum.'/'.$csec.' expire '. 9100: $env{$prefix.'priv.'.$priv.'.lock.expire'}); 9101: return ''; 9102: } 9103: } 9104: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/) 9105: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { 9106: if ($env{$prefix.'priv.'.$priv.'.lock.expire'}>time) { 9107: &log($env{'user.domain'},$env{'user.name'}, 9108: $env{'user.home'}, 9109: 'Locked by priv: '.$priv.' for '.$uri.' due to '. 9110: $cdom.'/'.$cnum.'/'.$csec.' expire '. 9111: $env{$prefix.'priv.'.$priv.'.lock.expire'}); 9112: return ''; 9113: } 9114: } 9115: } 9116: } 9117: } 9118: 9119: # 9120: # Rest of the restrictions depend on selected course 9121: # 9122: 9123: unless ($env{'request.course.id'}) { 9124: if ($thisallowed eq 'A') { 9125: return 'A'; 9126: } elsif ($thisallowed eq 'B') { 9127: return 'B'; 9128: } else { 9129: return '1'; 9130: } 9131: } 9132: 9133: # 9134: # Now user is definitely in a course 9135: # 9136: 9137: 9138: # Course preferences 9139: 9140: if ($thisallowed=~/C/) { 9141: my $rolecode=(split(/\./,$env{'request.role'}))[0]; 9142: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'}; 9143: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'} 9144: =~/\Q$rolecode\E/) { 9145: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { 9146: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. 9147: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. 9148: $env{'request.course.id'}); 9149: } 9150: return ''; 9151: } 9152: 9153: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'} 9154: =~/\Q$unamedom\E/) { 9155: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { 9156: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}. 9157: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '. 9158: $env{'request.course.id'}); 9159: } 9160: return ''; 9161: } 9162: } 9163: 9164: # Resource preferences 9165: 9166: if ($thisallowed=~/R/) { 9167: my $rolecode=(split(/\./,$env{'request.role'}))[0]; 9168: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) { 9169: if (($priv ne 'pch') && ($priv ne 'plc')) { 9170: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. 9171: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); 9172: } 9173: return ''; 9174: } 9175: } 9176: 9177: # Restricted for deeplinked session? 9178: 9179: if ($env{'request.deeplink.login'}) { 9180: if ($env{'acc.deeplinkout'} && !$nodeeplinkout) { 9181: if (!$symb) { $symb=&symbread($uri,1); } 9182: if (($symb) && ($env{'acc.deeplinkout'}=~/\&\Q$symb\E\&/)) { 9183: return ''; 9184: } 9185: } 9186: } 9187: 9188: # Restricted by state or randomout? 9189: 9190: if ($thisallowed=~/X/) { 9191: if ($env{'acc.randomout'}) { 9192: if (!$symb) { $symb=&symbread($uri,1); } 9193: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) { 9194: return ''; 9195: } 9196: } 9197: if (&condval($statecond)) { 9198: return '2'; 9199: } else { 9200: return ''; 9201: } 9202: } 9203: 9204: if ($thisallowed eq 'A') { 9205: return 'A'; 9206: } elsif ($thisallowed eq 'B') { 9207: return 'B'; 9208: } elsif ($thisallowed eq 'D') { 9209: return 'D'; 9210: } 9211: return 'F'; 9212: } 9213: 9214: # ------------------------------------------- Check construction space access 9215: 9216: sub constructaccess { 9217: my ($url,$setpriv)=@_; 9218: 9219: # We do not allow editing of previous versions of files 9220: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; } 9221: 9222: # Get username and domain from URL 9223: my ($ownername,$ownerdomain,$ownerhome); 9224: 9225: ($ownerdomain,$ownername) = 9226: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)}); 9227: 9228: # The URL does not really point to any authorspace, forget it 9229: unless (($ownername) && ($ownerdomain)) { return ''; } 9230: 9231: # Now we need to see if the user has access to the authorspace of 9232: # $ownername at $ownerdomain 9233: 9234: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) { 9235: # Real author for this? 9236: $ownerhome = $env{'user.home'}; 9237: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) { 9238: return ($ownername,$ownerdomain,$ownerhome); 9239: } 9240: } elsif (&is_course($ownerdomain,$ownername)) { 9241: # Course Authoring Space? 9242: if ($env{'request.course.id'}) { 9243: if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) && 9244: ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) { 9245: if (&allowed('mdc',$env{'request.course.id'})) { 9246: return if ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'} eq '0'); 9247: unless ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'}) { 9248: my %domdefs = &get_domain_defaults($ownerdomain); 9249: my $type = lc($env{'course.'.$env{'request.course.id'}.'.type'}); 9250: unless (($type eq 'community') || ($type eq 'placement')) { 9251: $type = 'unofficial'; 9252: if ($env{'course.'.$env{'request.course.id'}.'internal.coursecode'} ne '') { 9253: $type = 'official'; 9254: } elsif ($env{'course.'.$env{'request.course.id'}.'internal.textbook'} ne '') { 9255: $type = 'textbook'; 9256: } else { 9257: $type = 'unofficial'; 9258: } 9259: } 9260: return if ($domdefs{$type.'crsauthor'} eq '0'); 9261: } 9262: $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'}; 9263: return ($ownername,$ownerdomain,$ownerhome); 9264: } 9265: } 9266: } 9267: return ''; 9268: } else { 9269: # Co-author for this? 9270: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) || 9271: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) { 9272: $ownerhome = &homeserver($ownername,$ownerdomain); 9273: return ($ownername,$ownerdomain,$ownerhome); 9274: } 9275: } 9276: 9277: # We don't have any access right now. If we are not possibly going to do anything about this, 9278: # we might as well leave 9279: unless ($setpriv) { return ''; } 9280: 9281: # Backdoor access? 9282: my $allowed=&allowed('eco',$ownerdomain); 9283: # Nope 9284: unless ($allowed) { return ''; } 9285: # Looks like we may have access, but could be locked by the owner of the construction space 9286: if ($allowed eq 'U') { 9287: my %blocked=&get('environment',['domcoord.author'], 9288: $ownerdomain,$ownername); 9289: # Is blocked by owner 9290: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; } 9291: } 9292: if (($allowed eq 'F') || ($allowed eq 'U')) { 9293: # Grant temporary access 9294: my $then=$env{'user.login.time'}; 9295: my $update=$env{'user.update.time'}; 9296: if (!$update) { $update = $then; } 9297: my $refresh=$env{'user.refresh.time'}; 9298: if (!$refresh) { $refresh = $update; } 9299: my $now = time; 9300: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh, 9301: $now,'ca','constructaccess'); 9302: $ownerhome = &homeserver($ownername,$ownerdomain); 9303: return($ownername,$ownerdomain,$ownerhome); 9304: } 9305: # No business here 9306: return ''; 9307: } 9308: 9309: # ----------------------------------------------------------- Content Blocking 9310: 9311: { 9312: # Caches for faster Course Contents display where content blocking 9313: # is in operation (i.e., interval param set) for timed quiz. 9314: # 9315: # User for whom data are being temporarily cached. 9316: my $cacheduser=''; 9317: # Course for which data are being temporarily cached. 9318: my $cachedcid=''; 9319: # Cached blockers for this user (a hash of blocking items). 9320: my %cachedblockers=(); 9321: # When the data were last cached. 9322: my $cachedlast=''; 9323: 9324: sub load_all_blockers { 9325: my ($uname,$udom)=@_; 9326: if (($uname ne '') && ($udom ne '')) { 9327: if (($cacheduser eq $uname.':'.$udom) && 9328: ($cachedcid eq $env{'request.course.id'}) && 9329: (abs($cachedlast-time)<5)) { 9330: return; 9331: } 9332: } 9333: $cachedlast=time; 9334: $cacheduser=$uname.':'.$udom; 9335: $cachedcid=$env{'request.course.id'}; 9336: %cachedblockers = &get_commblock_resources(); 9337: return; 9338: } 9339: 9340: sub get_comm_blocks { 9341: my ($cdom,$cnum) = @_; 9342: if ($cdom eq '' || $cnum eq '') { 9343: return unless ($env{'request.course.id'}); 9344: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 9345: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 9346: } 9347: my %commblocks; 9348: my $hashid=$cdom.'_'.$cnum; 9349: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid); 9350: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) { 9351: %commblocks = %{$blocksref}; 9352: } else { 9353: %commblocks = &dump('comm_block',$cdom,$cnum); 9354: my $cachetime = 600; 9355: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime); 9356: } 9357: return %commblocks; 9358: } 9359: 9360: sub get_commblock_resources { 9361: my ($blocks) = @_; 9362: my %blockers = (); 9363: return %blockers unless ($env{'request.course.id'}); 9364: my $courseurl = &courseid_to_courseurl($env{'request.course.id'}); 9365: if ($env{'request.course.sec'}) { 9366: $courseurl .= '/'.$env{'request.course.sec'}; 9367: } 9368: return %blockers if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/); 9369: my %commblocks; 9370: if (ref($blocks) eq 'HASH') { 9371: %commblocks = %{$blocks}; 9372: } else { 9373: %commblocks = &get_comm_blocks(); 9374: } 9375: return %blockers unless (keys(%commblocks) > 0); 9376: my $navmap = Apache::lonnavmaps::navmap->new(); 9377: return %blockers unless (ref($navmap)); 9378: my $now = time; 9379: foreach my $block (keys(%commblocks)) { 9380: if ($block =~ /^(\d+)____(\d+)$/) { 9381: my ($start,$end) = ($1,$2); 9382: if ($start <= $now && $end >= $now) { 9383: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { 9384: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { 9385: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { 9386: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { 9387: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; 9388: } 9389: } 9390: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { 9391: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { 9392: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; 9393: } 9394: } 9395: } 9396: } 9397: } 9398: } elsif ($block =~ /^firstaccess____(.+)$/) { 9399: my $item = $1; 9400: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { 9401: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { 9402: my (@interval,$mapname); 9403: my $type = 'map'; 9404: if ($item eq 'course') { 9405: $type = 'course'; 9406: @interval=&EXT("resource.0.interval"); 9407: } else { 9408: if ($item =~ /___\d+___/) { 9409: $type = 'resource'; 9410: @interval=&EXT("resource.0.interval",$item); 9411: } else { 9412: $mapname = &deversion($item); 9413: if (ref($navmap)) { 9414: my $timelimit = $navmap->get_mapparam(undef,$mapname,'0.interval'); 9415: @interval = ($timelimit,'map'); 9416: } 9417: } 9418: } 9419: if ($interval[0] =~ /^(\d+)/) { 9420: my $timelimit = $1; 9421: my $first_access; 9422: if ($type eq 'resource') { 9423: $first_access=&get_first_access($interval[1],$item); 9424: } elsif ($type eq 'map') { 9425: $first_access=&get_first_access($interval[1],undef,$item); 9426: } else { 9427: $first_access=&get_first_access($interval[1]); 9428: } 9429: if ($first_access) { 9430: my $timesup = $first_access+$timelimit; 9431: if ($timesup > $now) { 9432: my $activeblock; 9433: if ($type eq 'resource') { 9434: if (ref($navmap)) { 9435: my $res = $navmap->getBySymb($item); 9436: if ($res->answerable()) { 9437: $activeblock = 1; 9438: } 9439: } 9440: } elsif ($type eq 'map') { 9441: my $mapsymb = &symbread($mapname,1); 9442: if (($mapsymb) && (ref($navmap))) { 9443: my $mapres = $navmap->getBySymb($mapsymb); 9444: if (ref($mapres)) { 9445: my $first = $mapres->map_start(); 9446: my $finish = $mapres->map_finish(); 9447: my $it = $navmap->getIterator($first,$finish,undef,0,0); 9448: if (ref($it)) { 9449: my $res; 9450: while ($res = $it->next(undef,1)) { 9451: next unless (ref($res)); 9452: my $symb = $res->symb(); 9453: next if (($symb eq $mapsymb) || ($symb eq '')); 9454: @interval=&EXT("resource.0.interval",$symb); 9455: if ($interval[1] eq 'map') { 9456: if ($res->answerable()) { 9457: $activeblock = 1; 9458: last; 9459: } 9460: } 9461: } 9462: } 9463: } 9464: } 9465: } 9466: if ($activeblock) { 9467: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { 9468: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { 9469: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; 9470: } 9471: } 9472: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { 9473: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { 9474: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; 9475: } 9476: } 9477: } 9478: } 9479: } 9480: } 9481: } 9482: } 9483: } 9484: } 9485: return %blockers; 9486: } 9487: 9488: sub has_comm_blocking { 9489: my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_; 9490: my @blockers; 9491: return unless ($env{'request.course.id'}); 9492: return unless ($priv eq 'bre'); 9493: return if ($env{'request.state'} eq 'construct'); 9494: my $courseurl = &courseid_to_courseurl($env{'request.course.id'}); 9495: if ($env{'request.course.sec'}) { 9496: $courseurl .= '/'.$env{'request.course.sec'}; 9497: } 9498: return if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/); 9499: my %blockinfo; 9500: if (ref($blocks) eq 'HASH') { 9501: %blockinfo = &get_commblock_resources($blocks); 9502: } else { 9503: &load_all_blockers($env{'user.name'},$env{'user.domain'}); 9504: %blockinfo = %cachedblockers; 9505: } 9506: return unless (keys(%blockinfo) > 0); 9507: my (%possibles,@symbs); 9508: if (!$symb) { 9509: $symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck); 9510: } 9511: if ($symb) { 9512: @symbs = ($symb); 9513: } elsif (keys(%possibles)) { 9514: @symbs = keys(%possibles); 9515: } 9516: my $noblock; 9517: foreach my $symb (@symbs) { 9518: last if ($noblock); 9519: my ($map,$resid,$resurl)=&decode_symb($symb); 9520: foreach my $block (keys(%blockinfo)) { 9521: if ($block =~ /^firstaccess____(.+)$/) { 9522: my $item = $1; 9523: unless ($blocked) { 9524: if (($item eq $map) || ($item eq $symb)) { 9525: $noblock = 1; 9526: last; 9527: } 9528: } 9529: } 9530: if (ref($blockinfo{$block}) eq 'HASH') { 9531: if (ref($blockinfo{$block}{'resources'}) eq 'HASH') { 9532: if ($blockinfo{$block}{'resources'}{$symb}) { 9533: unless (grep(/^\Q$block\E$/,@blockers)) { 9534: push(@blockers,$block); 9535: } 9536: } 9537: } 9538: if (ref($blockinfo{$block}{'maps'}) eq 'HASH') { 9539: if ($blockinfo{$block}{'maps'}{$map}) { 9540: unless (grep(/^\Q$block\E$/,@blockers)) { 9541: push(@blockers,$block); 9542: } 9543: } 9544: } 9545: } 9546: } 9547: } 9548: unless ($noblock) { 9549: return @blockers; 9550: } 9551: return; 9552: } 9553: } 9554: 9555: sub deeplink_check { 9556: my ($priv,$symb,$uri) = @_; 9557: return unless ($env{'request.course.id'}); 9558: return unless ($priv eq 'bre'); 9559: return if ($env{'request.state'} eq 'construct'); 9560: return if ($env{'request.role.adv'}); 9561: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 9562: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 9563: my (%possibles,@symbs); 9564: if (!$symb) { 9565: $symb = &symbread($uri,1,1,1,\%possibles); 9566: } 9567: if ($symb) { 9568: @symbs = ($symb); 9569: } elsif (keys(%possibles)) { 9570: @symbs = keys(%possibles); 9571: } 9572: 9573: my ($deeplink_symb,$allow); 9574: if ($env{'request.deeplink.login'}) { 9575: $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom); 9576: } 9577: foreach my $symb (@symbs) { 9578: last if ($allow); 9579: my $deeplink = &EXT("resource.0.deeplink",$symb); 9580: if ($deeplink eq '') { 9581: $allow = 1; 9582: } else { 9583: my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink); 9584: if ($state ne 'only') { 9585: $allow = 1; 9586: } else { 9587: my $check_deeplink_entry; 9588: if ($protect ne 'none') { 9589: my ($acctype,$item) = split(/:/,$protect); 9590: if (($acctype eq 'ltic') && ($env{'user.linkprotector'})) { 9591: if (grep(/^\Q$item\Ec$/,split(/,/,$env{'user.linkprotector'}))) { 9592: $check_deeplink_entry = 1 9593: } 9594: } elsif (($acctype eq 'ltid') && ($env{'user.linkprotector'})) { 9595: if (grep(/^\Q$item\Ed$/,split(/,/,$env{'user.linkprotector'}))) { 9596: $check_deeplink_entry = 1; 9597: } 9598: } elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) { 9599: if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) { 9600: $check_deeplink_entry = 1; 9601: } 9602: } 9603: } 9604: if (($protect eq 'none') || ($check_deeplink_entry)) { 9605: if ($scope eq 'res') { 9606: if ($symb eq $deeplink_symb) { 9607: $allow = 1; 9608: } 9609: } elsif (($scope eq 'map') || ($scope eq 'rec')) { 9610: my ($map_from_symb,$map_from_login); 9611: $map_from_symb = &deversion((&decode_symb($symb))[0]); 9612: if ($deeplink_symb =~ /\.(page|sequence)$/) { 9613: $map_from_login = &deversion((&decode_symb($deeplink_symb))[2]); 9614: } else { 9615: $map_from_login = &deversion((&decode_symb($deeplink_symb))[0]); 9616: } 9617: if (($map_from_symb) && ($map_from_login)) { 9618: if ($map_from_symb eq $map_from_login) { 9619: $allow = 1; 9620: } elsif ($scope eq 'rec') { 9621: my @recurseup = &get_map_hierarchy($map_from_symb,$env{'request.course.id'}); 9622: if (grep(/^\Q$map_from_login\E$/,@recurseup)) { 9623: $allow = 1; 9624: } 9625: } 9626: } 9627: } 9628: } 9629: } 9630: } 9631: } 9632: return if ($allow); 9633: return 1; 9634: } 9635: 9636: # -------------------------------- Deversion and split uri into path an filename 9637: 9638: # 9639: # Removes the version from a URI and 9640: # splits it in to its filename and path to the filename. 9641: # Seems like File::Basename could have done this more clearly. 9642: # Parameters: 9643: # $uri - input URI 9644: # Returns: 9645: # Two element list consisting of 9646: # $pathname - the URI up to and excluding the trailing / 9647: # $filename - The part of the URI following the last / 9648: # NOTE: 9649: # Another realization of this is simply: 9650: # use File::Basename; 9651: # ... 9652: # $uri = shift; 9653: # $filename = basename($uri); 9654: # $path = dirname($uri); 9655: # return ($filename, $path); 9656: # 9657: # The implementation below is probably faster however. 9658: # 9659: sub split_uri_for_cond { 9660: my $uri=&deversion(&declutter(shift)); 9661: my @uriparts=split(/\//,$uri); 9662: my $filename=pop(@uriparts); 9663: my $pathname=join('/',@uriparts); 9664: return ($pathname,$filename); 9665: } 9666: # --------------------------------------------------- Is a resource on the map? 9667: 9668: sub is_on_map { 9669: my ($pathname,$filename) = &split_uri_for_cond(shift); 9670: #Trying to find the conditional for the file 9671: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~ 9672: /\&\Q$filename\E\:([\d\|]+)\&/); 9673: if ($match) { 9674: return (1,$1); 9675: } else { 9676: return (0,0); 9677: } 9678: } 9679: 9680: # --------------------------------------------------------- Get symb from alias 9681: 9682: sub get_symb_from_alias { 9683: my $symb=shift; 9684: my ($map,$resid,$url)=&decode_symb($symb); 9685: # Already is a symb 9686: if ($url) { return $symb; } 9687: # Must be an alias 9688: my $aliassymb=''; 9689: my %bighash; 9690: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 9691: &GDBM_READER(),0640)) { 9692: my $rid=$bighash{'mapalias_'.$symb}; 9693: if ($rid) { 9694: my ($mapid,$resid)=split(/\./,$rid); 9695: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid}, 9696: $resid,$bighash{'src_'.$rid}); 9697: } 9698: untie %bighash; 9699: } 9700: return $aliassymb; 9701: } 9702: 9703: # ----------------------------------------------------------------- Define Role 9704: 9705: sub definerole { 9706: if (allowed('mcr','/')) { 9707: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_; 9708: foreach my $role (split(':',$sysrole)) { 9709: my ($crole,$cqual)=split(/\&/,$role); 9710: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; } 9711: if ($pr{'cr:s'}=~/\Q$crole\E\&/) { 9712: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { 9713: return "refused:s:$crole&$cqual"; 9714: } 9715: } 9716: } 9717: foreach my $role (split(':',$domrole)) { 9718: my ($crole,$cqual)=split(/\&/,$role); 9719: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; } 9720: if ($pr{'cr:d'}=~/\Q$crole\E\&/) { 9721: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) { 9722: return "refused:d:$crole&$cqual"; 9723: } 9724: } 9725: } 9726: foreach my $role (split(':',$courole)) { 9727: my ($crole,$cqual)=split(/\&/,$role); 9728: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; } 9729: if ($pr{'cr:c'}=~/\Q$crole\E\&/) { 9730: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { 9731: return "refused:c:$crole&$cqual"; 9732: } 9733: } 9734: } 9735: my $uhome; 9736: if (($uname ne '') && ($udom ne '')) { 9737: $uhome = &homeserver($uname,$udom); 9738: return $uhome if ($uhome eq 'no_host'); 9739: } else { 9740: $uname = $env{'user.name'}; 9741: $udom = $env{'user.domain'}; 9742: $uhome = $env{'user.home'}; 9743: } 9744: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". 9745: "$udom:$uname:rolesdef_$rolename=". 9746: escape($sysrole.'_'.$domrole.'_'.$courole); 9747: return reply($command,$uhome); 9748: } else { 9749: return 'refused'; 9750: } 9751: } 9752: 9753: # ---------------- Make a metadata query against the network of library servers 9754: 9755: sub metadata_query { 9756: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_; 9757: my %rhash; 9758: my %libserv = &all_library(); 9759: my @server_list = (defined($server_array) ? @$server_array 9760: : keys(%libserv) ); 9761: for my $server (@server_list) { 9762: my $domains = ''; 9763: if (ref($domains_hash) eq 'HASH') { 9764: $domains = $domains_hash->{$server}; 9765: } 9766: unless ($custom or $customshow) { 9767: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server); 9768: $rhash{$server}=$reply; 9769: } 9770: else { 9771: my $reply=&reply("querysend:".&escape($query).':'. 9772: &escape($custom).':'.&escape($customshow).':'.&escape($domains), 9773: $server); 9774: $rhash{$server}=$reply; 9775: } 9776: } 9777: return \%rhash; 9778: } 9779: 9780: # ----------------------------------------- Send log queries and wait for reply 9781: 9782: sub log_query { 9783: my ($uname,$udom,$query,%filters)=@_; 9784: my $uhome=&homeserver($uname,$udom); 9785: if ($uhome eq 'no_host') { return 'error: no_host'; } 9786: my $uhost=&hostname($uhome); 9787: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters))); 9788: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command, 9789: $uhome); 9790: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; } 9791: return get_query_reply($queryid); 9792: } 9793: 9794: # -------------------------- Update MySQL table for portfolio file 9795: 9796: sub update_portfolio_table { 9797: my ($uname,$udom,$file_name,$query,$group,$action) = @_; 9798: if ($group ne '') { 9799: $file_name =~s /^\Q$group\E//; 9800: } 9801: my $homeserver = &homeserver($uname,$udom); 9802: my $queryid= 9803: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group). 9804: ':'.&escape($file_name).':'.$action,$homeserver); 9805: my $reply = &get_query_reply($queryid); 9806: return $reply; 9807: } 9808: 9809: # -------------------------- Update MySQL allusers table 9810: 9811: sub update_allusers_table { 9812: my ($uname,$udom,$names) = @_; 9813: my $homeserver = &homeserver($uname,$udom); 9814: my $queryid= 9815: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'. 9816: 'lastname='.&escape($names->{'lastname'}).'%%'. 9817: 'firstname='.&escape($names->{'firstname'}).'%%'. 9818: 'middlename='.&escape($names->{'middlename'}).'%%'. 9819: 'generation='.&escape($names->{'generation'}).'%%'. 9820: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'. 9821: 'id='.&escape($names->{'id'}),$homeserver); 9822: return; 9823: } 9824: 9825: # ------- Request retrieval of institutional classlists for course(s) 9826: 9827: sub fetch_enrollment_query { 9828: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_; 9829: my ($homeserver,$sleep,$loopmax); 9830: my $maxtries = 1; 9831: if ($context eq 'automated') { 9832: $homeserver = $perlvar{'lonHostID'}; 9833: $sleep = 2; 9834: $loopmax = 100; 9835: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout 9836: } else { 9837: $homeserver = &homeserver($cnum,$dom); 9838: } 9839: my $host=&hostname($homeserver); 9840: my $cmd = ''; 9841: foreach my $affiliate (keys(%{$affiliatesref})) { 9842: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; 9843: } 9844: $cmd =~ s/%%$//; 9845: $cmd = &escape($cmd); 9846: my $query = 'fetchenrollment'; 9847: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver); 9848: unless ($queryid=~/^\Q$host\E\_/) { 9849: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum); 9850: return 'error: '.$queryid; 9851: } 9852: my $reply = &get_query_reply($queryid,$sleep,$loopmax); 9853: my $tries = 1; 9854: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 9855: $reply = &get_query_reply($queryid,$sleep,$loopmax); 9856: $tries ++; 9857: } 9858: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 9859: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); 9860: } else { 9861: my @responses = split(/:/,$reply); 9862: if (grep { $_ eq $homeserver } &current_machine_ids()) { 9863: foreach my $line (@responses) { 9864: my ($key,$value) = split(/=/,$line,2); 9865: $$replyref{$key} = $value; 9866: } 9867: } else { 9868: my $pathname = LONCAPA::tempdir(); 9869: foreach my $line (@responses) { 9870: my ($key,$value) = split(/=/,$line); 9871: $$replyref{$key} = $value; 9872: if ($value > 0) { 9873: foreach my $item (@{$$affiliatesref{$key}}) { 9874: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml'; 9875: my $destname = $pathname.'/'.$filename; 9876: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver); 9877: if ($xml_classlist =~ /^error/) { 9878: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum); 9879: } else { 9880: if ( open(FILE,">",$destname) ) { 9881: print FILE &unescape($xml_classlist); 9882: close(FILE); 9883: } else { 9884: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum); 9885: } 9886: } 9887: } 9888: } 9889: } 9890: } 9891: return 'ok'; 9892: } 9893: return 'error'; 9894: } 9895: 9896: sub get_query_reply { 9897: my ($queryid,$sleep,$loopmax) = @_; 9898: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) { 9899: $sleep = 0.2; 9900: } 9901: if (($loopmax eq '') || ($loopmax =~ /\D/)) { 9902: $loopmax = 100; 9903: } 9904: my $replyfile=LONCAPA::tempdir().$queryid; 9905: my $reply=''; 9906: for (1..$loopmax) { 9907: sleep($sleep); 9908: if (-e $replyfile.'.end') { 9909: if (open(my $fh,"<",$replyfile)) { 9910: $reply = join('',<$fh>); 9911: close($fh); 9912: } else { return 'error: reply_file_error'; } 9913: return &unescape($reply); 9914: } 9915: } 9916: return 'timeout:'.$queryid; 9917: } 9918: 9919: sub courselog_query { 9920: # 9921: # possible filters: 9922: # url: url or symb 9923: # username 9924: # domain 9925: # action: view, submit, grade 9926: # start: timestamp 9927: # end: timestamp 9928: # 9929: my (%filters)=@_; 9930: unless ($env{'request.course.id'}) { return 'no_course'; } 9931: if ($filters{'url'}) { 9932: $filters{'url'}=&symbclean(&declutter($filters{'url'})); 9933: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/; 9934: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/; 9935: } 9936: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'}; 9937: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 9938: return &log_query($cname,$cdom,'courselog',%filters); 9939: } 9940: 9941: sub userlog_query { 9942: # 9943: # possible filters: 9944: # action: log check role 9945: # start: timestamp 9946: # end: timestamp 9947: # 9948: my ($uname,$udom,%filters)=@_; 9949: return &log_query($uname,$udom,'userlog',%filters); 9950: } 9951: 9952: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course 9953: 9954: sub auto_run { 9955: my ($cnum,$cdom) = @_; 9956: my $response = 0; 9957: my $settings; 9958: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom); 9959: if (ref($domconfig{'autoenroll'}) eq 'HASH') { 9960: $settings = $domconfig{'autoenroll'}; 9961: if ($settings->{'run'} eq '1') { 9962: $response = 1; 9963: } 9964: } else { 9965: my $homeserver; 9966: if (&is_course($cdom,$cnum)) { 9967: $homeserver = &homeserver($cnum,$cdom); 9968: } else { 9969: $homeserver = &domain($cdom,'primary'); 9970: } 9971: if ($homeserver ne 'no_host') { 9972: $response = &reply('autorun:'.$cdom,$homeserver); 9973: } 9974: } 9975: return $response; 9976: } 9977: 9978: sub auto_get_sections { 9979: my ($cnum,$cdom,$inst_coursecode) = @_; 9980: my $homeserver; 9981: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 9982: $homeserver = &homeserver($cnum,$cdom); 9983: } 9984: if (!defined($homeserver)) { 9985: if ($cdom =~ /^$match_domain$/) { 9986: $homeserver = &domain($cdom,'primary'); 9987: } 9988: } 9989: my @secs; 9990: if (defined($homeserver)) { 9991: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver)); 9992: unless ($response eq 'refused') { 9993: @secs = split(/:/,$response); 9994: } 9995: } 9996: return @secs; 9997: } 9998: 9999: sub auto_new_course { 10000: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_; 10001: my $homeserver = &homeserver($cnum,$cdom); 10002: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver)); 10003: return $response; 10004: } 10005: 10006: sub auto_validate_courseID { 10007: my ($cnum,$cdom,$inst_course_id) = @_; 10008: my $homeserver = &homeserver($cnum,$cdom); 10009: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver)); 10010: return $response; 10011: } 10012: 10013: sub auto_validate_instcode { 10014: my ($cnum,$cdom,$instcode,$owner) = @_; 10015: my ($homeserver,$response); 10016: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 10017: $homeserver = &homeserver($cnum,$cdom); 10018: } 10019: if (!defined($homeserver)) { 10020: if ($cdom =~ /^$match_domain$/) { 10021: $homeserver = &domain($cdom,'primary'); 10022: } 10023: } 10024: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'. 10025: &escape($instcode).':'.&escape($owner),$homeserver)); 10026: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3); 10027: return ($outcome,$description,$defaultcredits); 10028: } 10029: 10030: sub auto_validate_inst_crosslist { 10031: my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_; 10032: my ($homeserver,$response); 10033: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 10034: $homeserver = &homeserver($cnum,$cdom); 10035: } 10036: if (!defined($homeserver)) { 10037: if ($cdom =~ /^$match_domain$/) { 10038: $homeserver = &domain($cdom,'primary'); 10039: } 10040: } 10041: unless (($homeserver eq '') || ($homeserver eq 'no_host')) { 10042: $response=&reply('autovalidateinstcrosslist:'.$cdom.':'. 10043: &escape($instcode).':'.&escape($inst_xlist).':'. 10044: &escape($coowner),$homeserver); 10045: } 10046: return $response; 10047: } 10048: 10049: sub auto_create_password { 10050: my ($cnum,$cdom,$authparam,$udom) = @_; 10051: my ($homeserver,$response); 10052: my $create_passwd = 0; 10053: my $authchk = ''; 10054: if ($udom =~ /^$match_domain$/) { 10055: $homeserver = &domain($udom,'primary'); 10056: } 10057: if ($homeserver eq '') { 10058: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 10059: $homeserver = &homeserver($cnum,$cdom); 10060: } 10061: } 10062: if ($homeserver eq '') { 10063: $authchk = 'nodomain'; 10064: } else { 10065: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver)); 10066: if ($response eq 'refused') { 10067: $authchk = 'refused'; 10068: } else { 10069: ($authparam,$create_passwd,$authchk) = split(/:/,$response); 10070: } 10071: } 10072: return ($authparam,$create_passwd,$authchk); 10073: } 10074: 10075: sub auto_photo_permission { 10076: my ($cnum,$cdom,$students) = @_; 10077: my $homeserver = &homeserver($cnum,$cdom); 10078: my ($outcome,$perm_reqd,$conditions) = 10079: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3); 10080: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 10081: return (undef,undef); 10082: } 10083: return ($outcome,$perm_reqd,$conditions); 10084: } 10085: 10086: sub auto_checkphotos { 10087: my ($uname,$udom,$pid) = @_; 10088: my $homeserver = &homeserver($uname,$udom); 10089: my ($result,$resulttype); 10090: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'. 10091: &escape($uname).':'.&escape($pid), 10092: $homeserver)); 10093: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 10094: return (undef,undef); 10095: } 10096: if ($outcome) { 10097: ($result,$resulttype) = split(/:/,$outcome); 10098: } 10099: return ($result,$resulttype); 10100: } 10101: 10102: sub auto_photochoice { 10103: my ($cnum,$cdom) = @_; 10104: my $homeserver = &homeserver($cnum,$cdom); 10105: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'. 10106: &escape($cdom), 10107: $homeserver))); 10108: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 10109: return (undef,undef); 10110: } 10111: return ($update,$comment); 10112: } 10113: 10114: sub auto_photoupdate { 10115: my ($affiliatesref,$dom,$cnum,$photo) = @_; 10116: my $homeserver = &homeserver($cnum,$dom); 10117: my $host=&hostname($homeserver); 10118: my $cmd = ''; 10119: my $maxtries = 1; 10120: foreach my $affiliate (keys(%{$affiliatesref})) { 10121: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; 10122: } 10123: $cmd =~ s/%%$//; 10124: $cmd = &escape($cmd); 10125: my $query = 'institutionalphotos'; 10126: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver); 10127: unless ($queryid=~/^\Q$host\E\_/) { 10128: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum); 10129: return 'error: '.$queryid; 10130: } 10131: my $reply = &get_query_reply($queryid); 10132: my $tries = 1; 10133: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 10134: $reply = &get_query_reply($queryid); 10135: $tries ++; 10136: } 10137: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 10138: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); 10139: } else { 10140: my @responses = split(/:/,$reply); 10141: my $outcome = shift(@responses); 10142: foreach my $item (@responses) { 10143: my ($key,$value) = split(/=/,$item); 10144: $$photo{$key} = $value; 10145: } 10146: return $outcome; 10147: } 10148: return 'error'; 10149: } 10150: 10151: sub auto_instcode_format { 10152: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles, 10153: $cat_order) = @_; 10154: my $courses = ''; 10155: my @homeservers; 10156: if ($caller eq 'global') { 10157: my %servers = &get_servers($codedom,'library'); 10158: foreach my $tryserver (keys(%servers)) { 10159: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 10160: push(@homeservers,$tryserver); 10161: } 10162: } 10163: } elsif ($caller eq 'requests') { 10164: if ($codedom =~ /^$match_domain$/) { 10165: my $chome = &domain($codedom,'primary'); 10166: unless ($chome eq 'no_host') { 10167: push(@homeservers,$chome); 10168: } 10169: } 10170: } else { 10171: push(@homeservers,&homeserver($caller,$codedom)); 10172: } 10173: foreach my $code (keys(%{$instcodes})) { 10174: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&'; 10175: } 10176: chop($courses); 10177: my $ok_response = 0; 10178: my $response; 10179: while (@homeservers > 0 && $ok_response == 0) { 10180: my $server = shift(@homeservers); 10181: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server); 10182: if ($response !~ /(con_lost|error|no_such_host|refused)/) { 10183: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) = 10184: split(/:/,$response); 10185: %{$codes} = (%{$codes},&str2hash($codes_str)); 10186: push(@{$codetitles},&str2array($codetitles_str)); 10187: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str)); 10188: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str)); 10189: $ok_response = 1; 10190: } 10191: } 10192: if ($ok_response) { 10193: return 'ok'; 10194: } else { 10195: return $response; 10196: } 10197: } 10198: 10199: sub auto_instcode_defaults { 10200: my ($domain,$returnhash,$code_order) = @_; 10201: my @homeservers; 10202: 10203: my %servers = &get_servers($domain,'library'); 10204: foreach my $tryserver (keys(%servers)) { 10205: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 10206: push(@homeservers,$tryserver); 10207: } 10208: } 10209: 10210: my $response; 10211: foreach my $server (@homeservers) { 10212: $response=&reply('autoinstcodedefaults:'.$domain,$server); 10213: next if ($response =~ /(con_lost|error|no_such_host|refused)/); 10214: 10215: foreach my $pair (split(/\&/,$response)) { 10216: my ($name,$value)=split(/\=/,$pair); 10217: if ($name eq 'code_order') { 10218: @{$code_order} = split(/\&/,&unescape($value)); 10219: } else { 10220: $returnhash->{&unescape($name)}=&unescape($value); 10221: } 10222: } 10223: return 'ok'; 10224: } 10225: 10226: return $response; 10227: } 10228: 10229: sub auto_possible_instcodes { 10230: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_; 10231: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') && 10232: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { 10233: return; 10234: } 10235: my (@homeservers,$uhome); 10236: if (defined(&domain($domain,'primary'))) { 10237: $uhome=&domain($domain,'primary'); 10238: push(@homeservers,&domain($domain,'primary')); 10239: } else { 10240: my %servers = &get_servers($domain,'library'); 10241: foreach my $tryserver (keys(%servers)) { 10242: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 10243: push(@homeservers,$tryserver); 10244: } 10245: } 10246: } 10247: my $response; 10248: foreach my $server (@homeservers) { 10249: $response=&reply('autopossibleinstcodes:'.$domain,$server); 10250: next if ($response =~ /(con_lost|error|no_such_host|refused)/); 10251: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) = 10252: split(':',$response); 10253: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr)); 10254: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr)); 10255: foreach my $item (split('&',$cat_title)) { 10256: my ($name,$value)=split('=',$item); 10257: $cat_titles->{&unescape($name)}=&thaw_unescape($value); 10258: } 10259: foreach my $item (split('&',$cat_order)) { 10260: my ($name,$value)=split('=',$item); 10261: $cat_orders->{&unescape($name)}=&thaw_unescape($value); 10262: } 10263: return 'ok'; 10264: } 10265: return $response; 10266: } 10267: 10268: sub auto_courserequest_checks { 10269: my ($dom) = @_; 10270: my ($homeserver,%validations); 10271: if ($dom =~ /^$match_domain$/) { 10272: $homeserver = &domain($dom,'primary'); 10273: } 10274: unless ($homeserver eq 'no_host') { 10275: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver); 10276: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 10277: my @items = split(/&/,$response); 10278: foreach my $item (@items) { 10279: my ($key,$value) = split('=',$item); 10280: $validations{&unescape($key)} = &thaw_unescape($value); 10281: } 10282: } 10283: } 10284: return %validations; 10285: } 10286: 10287: sub auto_courserequest_validation { 10288: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_; 10289: my ($homeserver,$response); 10290: if ($dom =~ /^$match_domain$/) { 10291: $homeserver = &domain($dom,'primary'); 10292: } 10293: unless ($homeserver eq 'no_host') { 10294: my $customdata; 10295: if (ref($custominfo) eq 'HASH') { 10296: $customdata = &freeze_escape($custominfo); 10297: } 10298: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner). 10299: ':'.&escape($crstype).':'.&escape($inststatuslist). 10300: ':'.&escape($instcode).':'.&escape($instseclist).':'. 10301: $customdata,$homeserver)); 10302: } 10303: return $response; 10304: } 10305: 10306: sub auto_validate_class_sec { 10307: my ($cdom,$cnum,$owners,$inst_class) = @_; 10308: my $homeserver = &homeserver($cnum,$cdom); 10309: my $ownerlist; 10310: if (ref($owners) eq 'ARRAY') { 10311: $ownerlist = join(',',@{$owners}); 10312: } else { 10313: $ownerlist = $owners; 10314: } 10315: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'. 10316: &escape($ownerlist).':'.$cdom,$homeserver); 10317: return $response; 10318: } 10319: 10320: sub auto_instsec_reformat { 10321: my ($cdom,$action,$instsecref) = @_; 10322: return unless(($action eq 'clutter') || ($action eq 'declutter')); 10323: my @homeservers; 10324: if (defined(&domain($cdom,'primary'))) { 10325: push(@homeservers,&domain($cdom,'primary')); 10326: } else { 10327: my %servers = &get_servers($cdom,'library'); 10328: foreach my $tryserver (keys(%servers)) { 10329: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 10330: push(@homeservers,$tryserver); 10331: } 10332: } 10333: } 10334: my $response; 10335: my %reformatted = %{$instsecref}; 10336: foreach my $server (@homeservers) { 10337: if (ref($instsecref) eq 'HASH') { 10338: my $info = &freeze_escape($instsecref); 10339: my $response=&reply('autoinstsecreformat:'.$cdom.':'. 10340: $action.':'.$info,$server); 10341: next if ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/); 10342: my @items = split(/&/,$response); 10343: foreach my $item (@items) { 10344: my ($key,$value) = split(/=/,$item); 10345: $reformatted{&unescape($key)} = &thaw_unescape($value); 10346: } 10347: } 10348: } 10349: return %reformatted; 10350: } 10351: 10352: sub auto_validate_instclasses { 10353: my ($cdom,$cnum,$owners,$classesref) = @_; 10354: my ($homeserver,%validations); 10355: $homeserver = &homeserver($cnum,$cdom); 10356: unless ($homeserver eq 'no_host') { 10357: my $ownerlist; 10358: if (ref($owners) eq 'ARRAY') { 10359: $ownerlist = join(',',@{$owners}); 10360: } else { 10361: $ownerlist = $owners; 10362: } 10363: if (ref($classesref) eq 'HASH') { 10364: my $classes = &freeze_escape($classesref); 10365: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist). 10366: ':'.$cdom.':'.$classes,$homeserver); 10367: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 10368: my @items = split(/&/,$response); 10369: foreach my $item (@items) { 10370: my ($key,$value) = split('=',$item); 10371: $validations{&unescape($key)} = &thaw_unescape($value); 10372: } 10373: } 10374: } 10375: } 10376: return %validations; 10377: } 10378: 10379: sub auto_crsreq_update { 10380: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title, 10381: $code,$accessstart,$accessend,$inbound) = @_; 10382: my ($homeserver,%crsreqresponse); 10383: if ($cdom =~ /^$match_domain$/) { 10384: $homeserver = &domain($cdom,'primary'); 10385: } 10386: unless (($homeserver eq 'no_host') || ($homeserver eq '')) { 10387: my $info; 10388: if (ref($inbound) eq 'HASH') { 10389: $info = &freeze_escape($inbound); 10390: } 10391: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype). 10392: ':'.&escape($action).':'.&escape($ownername).':'. 10393: &escape($ownerdomain).':'.&escape($fullname).':'. 10394: &escape($title).':'.&escape($code).':'. 10395: &escape($accessstart).':'.&escape($accessend).':'.$info, 10396: $homeserver); 10397: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 10398: my @items = split(/&/,$response); 10399: foreach my $item (@items) { 10400: my ($key,$value) = split('=',$item); 10401: $crsreqresponse{&unescape($key)} = &thaw_unescape($value); 10402: } 10403: } 10404: } 10405: return \%crsreqresponse; 10406: } 10407: 10408: sub auto_export_grades { 10409: my ($cdom,$cnum,$inforef,$gradesref) = @_; 10410: my ($homeserver,%exportresponse); 10411: if ($cdom =~ /^$match_domain$/) { 10412: $homeserver = &domain($cdom,'primary'); 10413: } 10414: unless (($homeserver eq 'no_host') || ($homeserver eq '')) { 10415: my $info; 10416: if (ref($inforef) eq 'HASH') { 10417: $info = &freeze_escape($inforef); 10418: } 10419: if (ref($gradesref) eq 'HASH') { 10420: my $grades = &freeze_escape($gradesref); 10421: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'. 10422: $info.':'.$grades,$homeserver); 10423: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) { 10424: my @items = split(/&/,$response); 10425: foreach my $item (@items) { 10426: my ($key,$value) = split('=',$item); 10427: $exportresponse{&unescape($key)} = &thaw_unescape($value); 10428: } 10429: } 10430: } 10431: } 10432: return \%exportresponse; 10433: } 10434: 10435: sub check_instcode_cloning { 10436: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_; 10437: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { 10438: return; 10439: } 10440: my $canclone; 10441: if (@{$code_order} > 0) { 10442: my $instcoderegexp ='^'; 10443: my @clonecodes = split(/\&/,$cloner); 10444: foreach my $item (@{$code_order}) { 10445: if (grep(/^\Q$item\E=/,@clonecodes)) { 10446: foreach my $pair (@clonecodes) { 10447: my ($key,$val) = split(/\=/,$pair,2); 10448: $val = &unescape($val); 10449: if ($key eq $item) { 10450: $instcoderegexp .= '('.$val.')'; 10451: last; 10452: } 10453: } 10454: } else { 10455: $instcoderegexp .= $codedefaults->{$item}; 10456: } 10457: } 10458: $instcoderegexp .= '$'; 10459: my (@from,@to); 10460: eval { 10461: (@from) = ($clonefromcode =~ /$instcoderegexp/); 10462: (@to) = ($clonetocode =~ /$instcoderegexp/); 10463: }; 10464: if ((@from > 0) && (@to > 0)) { 10465: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); 10466: if (!@diffs) { 10467: $canclone = 1; 10468: } 10469: } 10470: } 10471: return $canclone; 10472: } 10473: 10474: sub default_instcode_cloning { 10475: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_; 10476: my (%codedefaults,@code_order,$canclone); 10477: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) { 10478: %codedefaults = %{$codedefaultsref}; 10479: @code_order = @{$codeorderref}; 10480: } elsif ($clonedom) { 10481: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order); 10482: } 10483: if (($domdefclone) && (@code_order)) { 10484: my @clonecodes = split(/\+/,$domdefclone); 10485: my $instcoderegexp ='^'; 10486: foreach my $item (@code_order) { 10487: if (grep(/^\Q$item\E$/,@clonecodes)) { 10488: $instcoderegexp .= '('.$codedefaults{$item}.')'; 10489: } else { 10490: $instcoderegexp .= $codedefaults{$item}; 10491: } 10492: } 10493: $instcoderegexp .= '$'; 10494: my (@from,@to); 10495: eval { 10496: (@from) = ($clonefromcode =~ /$instcoderegexp/); 10497: (@to) = ($clonetocode =~ /$instcoderegexp/); 10498: }; 10499: if ((@from > 0) && (@to > 0)) { 10500: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); 10501: if (!@diffs) { 10502: $canclone = 1; 10503: } 10504: } 10505: } 10506: return $canclone; 10507: } 10508: 10509: # ------------------------------------------------------- Course Group routines 10510: 10511: sub get_coursegroups { 10512: my ($cdom,$cnum,$group,$namespace) = @_; 10513: return(&dump($namespace,$cdom,$cnum,$group)); 10514: } 10515: 10516: sub modify_coursegroup { 10517: my ($cdom,$cnum,$groupsettings) = @_; 10518: return(&put('coursegroups',$groupsettings,$cdom,$cnum)); 10519: } 10520: 10521: sub toggle_coursegroup_status { 10522: my ($cdom,$cnum,$group,$action) = @_; 10523: my ($from_namespace,$to_namespace); 10524: if ($action eq 'delete') { 10525: $from_namespace = 'coursegroups'; 10526: $to_namespace = 'deleted_groups'; 10527: } else { 10528: $from_namespace = 'deleted_groups'; 10529: $to_namespace = 'coursegroups'; 10530: } 10531: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace); 10532: if (my $tmp = &error(%curr_group)) { 10533: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom); 10534: return ('read error',$tmp); 10535: } else { 10536: my %savedsettings = %curr_group; 10537: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum); 10538: my $deloutcome; 10539: if ($result eq 'ok') { 10540: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum); 10541: } else { 10542: return ('write error',$result); 10543: } 10544: if ($deloutcome eq 'ok') { 10545: return 'ok'; 10546: } else { 10547: return ('delete error',$deloutcome); 10548: } 10549: } 10550: } 10551: 10552: sub modify_group_roles { 10553: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context, 10554: $othdomby,$requester) = @_; 10555: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id; 10556: my $role = 'gr/'.&escape($userprivs); 10557: my ($uname,$udom) = split(/:/,$user); 10558: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context, 10559: $othdomby,$requester); 10560: if ($result eq 'ok') { 10561: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum); 10562: } 10563: return $result; 10564: } 10565: 10566: sub modify_coursegroup_membership { 10567: my ($cdom,$cnum,$membership) = @_; 10568: my $result = &put('groupmembership',$membership,$cdom,$cnum); 10569: return $result; 10570: } 10571: 10572: sub get_active_groups { 10573: my ($udom,$uname,$cdom,$cnum) = @_; 10574: my $now = time; 10575: my %groups = (); 10576: foreach my $key (keys(%env)) { 10577: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) { 10578: my ($start,$end) = split(/\./,$env{$key}); 10579: if (($end!=0) && ($end<$now)) { next; } 10580: if (($start!=0) && ($start>$now)) { next; } 10581: if ($1 eq $cdom && $2 eq $cnum) { 10582: $groups{$3} = $env{$key} ; 10583: } 10584: } 10585: } 10586: return %groups; 10587: } 10588: 10589: sub get_group_membership { 10590: my ($cdom,$cnum,$group) = @_; 10591: return(&dump('groupmembership',$cdom,$cnum,$group)); 10592: } 10593: 10594: sub get_users_groups { 10595: my ($udom,$uname,$courseid) = @_; 10596: my @usersgroups; 10597: my $cachetime=1800; 10598: 10599: my $hashid="$udom:$uname:$courseid"; 10600: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid); 10601: if (defined($cached)) { 10602: @usersgroups = split(/:/,$grouplist); 10603: } else { 10604: $grouplist = ''; 10605: my $courseurl = &courseid_to_courseurl($courseid); 10606: my %roleshash = &dump('roles',$udom,$uname,$courseurl); 10607: my $access_end = $env{'course.'.$courseid. 10608: '.default_enrollment_end_date'}; 10609: my $now = time; 10610: foreach my $key (keys(%roleshash)) { 10611: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) { 10612: my $group = $1; 10613: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) { 10614: my $start = $2; 10615: my $end = $1; 10616: if ($start == -1) { next; } # deleted from group 10617: if (($start!=0) && ($start>$now)) { next; } 10618: if (($end!=0) && ($end<$now)) { 10619: if ($access_end && $access_end < $now) { 10620: if ($access_end - $end < 86400) { 10621: push(@usersgroups,$group); 10622: } 10623: } 10624: next; 10625: } 10626: push(@usersgroups,$group); 10627: } 10628: } 10629: } 10630: @usersgroups = &sort_course_groups($courseid,@usersgroups); 10631: $grouplist = join(':',@usersgroups); 10632: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime); 10633: } 10634: return @usersgroups; 10635: } 10636: 10637: sub devalidate_getgroups_cache { 10638: my ($udom,$uname,$cdom,$cnum)=@_; 10639: my $courseid = $cdom.'_'.$cnum; 10640: 10641: my $hashid="$udom:$uname:$courseid"; 10642: &devalidate_cache_new('getgroups',$hashid); 10643: } 10644: 10645: # ------------------------------------------------------------------ Plain Text 10646: 10647: sub plaintext { 10648: my ($short,$type,$cid,$forcedefault) = @_; 10649: if ($short =~ m{^cr/}) { 10650: return (split('/',$short))[-1]; 10651: } 10652: if (!defined($cid)) { 10653: $cid = $env{'request.course.id'}; 10654: } 10655: my %rolenames = ( 10656: Course => 'std', 10657: Community => 'alt1', 10658: Placement => 'std', 10659: ); 10660: if ($cid ne '') { 10661: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') { 10662: unless ($forcedefault) { 10663: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'}; 10664: &Apache::lonlocal::mt_escape(\$roletext); 10665: return &Apache::lonlocal::mt($roletext); 10666: } 10667: } 10668: } 10669: if ((defined($type)) && (defined($rolenames{$type})) && 10670: (defined($rolenames{$type})) && 10671: (defined($prp{$short}{$rolenames{$type}}))) { 10672: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}}); 10673: } elsif ($cid ne '') { 10674: my $crstype = $env{'course.'.$cid.'.type'}; 10675: if (($crstype ne '') && (defined($rolenames{$crstype})) && 10676: (defined($prp{$short}{$rolenames{$crstype}}))) { 10677: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}}); 10678: } 10679: } 10680: return &Apache::lonlocal::mt($prp{$short}{'std'}); 10681: } 10682: 10683: # ----------------------------------------------------------------- Assign Role 10684: 10685: sub assignrole { 10686: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll, 10687: $context,$othdomby,$requester,$reqsec,$reqrole)=@_; 10688: my ($mrole,$rolelogcontext); 10689: if ($role =~ /^cr\//) { 10690: my $cwosec=$url; 10691: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; 10692: if ((!&allowed('ccr',$cwosec)) && (!&allowed('ccr',$udom))) { 10693: my $refused = 1; 10694: if ($context eq 'requestcourses') { 10695: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { 10696: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) { 10697: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) { 10698: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); 10699: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10700: if ($crsenv{'internal.courseowner'} eq 10701: $env{'user.name'}.':'.$env{'user.domain'}) { 10702: $refused = ''; 10703: } 10704: } 10705: } 10706: } 10707: } elsif (($context eq 'course') && ($othdomby eq 'othdombyuser')) { 10708: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); 10709: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$}); 10710: my $key = "$uname:$udom:$role:$sec"; 10711: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum); 10712: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) { 10713: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) { 10714: $refused = ''; 10715: } 10716: } 10717: } 10718: if ($refused) { 10719: &logthis('Refused custom assignrole: '. 10720: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start. 10721: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}); 10722: return 'refused'; 10723: } 10724: } 10725: $mrole='cr'; 10726: } elsif ($role =~ /^gr\//) { 10727: my $cwogrp=$url; 10728: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2}; 10729: if (!&allowed('mdg',$cwogrp)) { 10730: my $refused = 1; 10731: if (($refused) && ($othdomby eq 'othdombyuser') && ($requester ne '') && ($reqrole ne '')) { 10732: my ($cdom,$cnum) = ($cwogrp =~ m{^/?($match_domain)/($match_courseid)$}); 10733: my $key = "$uname:$udom:$reqrole:$reqsec"; 10734: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum); 10735: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) { 10736: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) { 10737: $refused = ''; 10738: } 10739: } 10740: } 10741: if ($refused) { 10742: &logthis('Refused group assignrole: '. 10743: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. 10744: $env{'user.name'}.' at '.$env{'user.domain'}); 10745: return 'refused'; 10746: } 10747: } 10748: $mrole='gr'; 10749: } else { 10750: my $cwosec=$url; 10751: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; 10752: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) { 10753: my $refused; 10754: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) { 10755: if (!(&allowed('c'.$role,$url))) { 10756: $refused = 1; 10757: } 10758: } else { 10759: $refused = 1; 10760: } 10761: if ($refused) { 10762: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); 10763: if (!$selfenroll && ($othdomby ne 'othdombyuser') && 10764: (($context eq 'course') || ($context eq 'ltienroll' && $env{'request.lti.login'}))) { 10765: my %crsenv; 10766: if ($role eq 'cc' || $role eq 'co') { 10767: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10768: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) { 10769: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) { 10770: if ($crsenv{'internal.courseowner'} eq 10771: $env{'user.name'}.':'.$env{'user.domain'}) { 10772: $refused = ''; 10773: } 10774: } 10775: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) { 10776: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) { 10777: if ($crsenv{'internal.courseowner'} eq 10778: $env{'user.name'}.':'.$env{'user.domain'}) { 10779: $refused = ''; 10780: } 10781: } 10782: } 10783: } 10784: } elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 10785: if ($role eq 'st') { 10786: $refused = ''; 10787: } elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) { 10788: $refused = ''; 10789: } 10790: } elsif ($othdomby eq 'othdombyuser') { 10791: my ($key,%queuedrolereq); 10792: if ($context eq 'course') { 10793: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$}); 10794: $key = "$uname:$udom:$role:$sec"; 10795: %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum); 10796: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) { 10797: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) { 10798: if ((($role eq 'cc') && ($cnum !~ /^$match_community$/)) || 10799: (($role eq 'co') && ($cnum =~ /^$match_community$/))) { 10800: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10801: if ($crsenv{'internal.courseowner'} eq $requester) { 10802: $refused = ''; 10803: } 10804: } elsif ($role =~ /^(?:in|ta|ep|st)$/) { 10805: $refused = ''; 10806: } 10807: } 10808: } 10809: } elsif (($context eq 'author') && ($role =~ /^ca|aa$/)) { 10810: my $key = "$uname:$udom:$role"; 10811: my ($audom,$auname) = ($url =~ m{^/($match_domain)/($match_username)$}); 10812: if (($audom ne '') && ($auname ne '')) { 10813: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$audom,$auname); 10814: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) { 10815: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) { 10816: $refused = ''; 10817: } 10818: } 10819: } 10820: } elsif (($context eq 'domain') && ($role ne 'dc') && ($role ne 'su')) { 10821: my $key = "$uname:$udom:$role"; 10822: my ($roledom) = ($url =~ m{^/($match_domain)/\Q$role\E$}); 10823: if ($roledom ne '') { 10824: my $confname = $roledom.'-domainconfig'; 10825: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$roledom,$confname); 10826: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) { 10827: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) { 10828: $refused = ''; 10829: } 10830: } 10831: } 10832: } 10833: } elsif ($context eq 'requestcourses') { 10834: my @possroles = ('st','ta','ep','in','cc','co'); 10835: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) { 10836: my $wrongcc; 10837: if ($cnum =~ /^$match_community$/) { 10838: $wrongcc = 1 if ($role eq 'cc'); 10839: } else { 10840: $wrongcc = 1 if ($role eq 'co'); 10841: } 10842: unless ($wrongcc) { 10843: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10844: if ($crsenv{'internal.courseowner'} eq 10845: $env{'user.name'}.':'.$env{'user.domain'}) { 10846: $refused = ''; 10847: } 10848: } 10849: } 10850: } elsif ($context eq 'requestauthor') { 10851: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && 10852: ($url eq '/'.$udom.'/') && ($role eq 'au')) { 10853: if ($env{'environment.requestauthor'} eq 'automatic') { 10854: $refused = ''; 10855: } else { 10856: my %domdefaults = &get_domain_defaults($udom); 10857: if (ref($domdefaults{'requestauthor'}) eq 'HASH') { 10858: my $checkbystatus; 10859: if ($env{'user.adv'}) { 10860: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'}; 10861: if ($disposition eq 'automatic') { 10862: $refused = ''; 10863: } elsif ($disposition eq '') { 10864: $checkbystatus = 1; 10865: } 10866: } else { 10867: $checkbystatus = 1; 10868: } 10869: if ($checkbystatus) { 10870: if ($env{'environment.inststatus'}) { 10871: my @inststatuses = split(/,/,$env{'environment.inststatus'}); 10872: foreach my $type (@inststatuses) { 10873: if (($type ne '') && 10874: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) { 10875: $refused = ''; 10876: } 10877: } 10878: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') { 10879: $refused = ''; 10880: } 10881: } 10882: } 10883: } 10884: } 10885: } elsif (($context eq 'author') && (($role eq 'ca' || $role eq 'aa'))) { 10886: if ($url =~ m{^/($match_domain)/($match_username)$}) { 10887: my ($audom,$auname) = ($1,$2); 10888: if ((&Apache::lonnet::allowed('v'.$role,"$audom/$auname")) && 10889: ($env{"environment.internal.manager.$url"})) { 10890: $refused = ''; 10891: $rolelogcontext = 'coauthor'; 10892: } 10893: } 10894: } 10895: if ($refused) { 10896: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url. 10897: ' '.$role.' '.$end.' '.$start.' by '. 10898: $env{'user.name'}.' at '.$env{'user.domain'}); 10899: return 'refused'; 10900: } 10901: } 10902: } elsif ($role eq 'au') { 10903: if ($url ne '/'.$udom.'/') { 10904: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}. 10905: ' to assign author role for '.$uname.':'.$udom. 10906: ' in domain: '.$url.' refused (wrong domain).'); 10907: return 'refused'; 10908: } 10909: } 10910: $mrole=$role; 10911: } 10912: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". 10913: "$udom:$uname:$url".'_'."$mrole=$role"; 10914: if ($end) { $command.='_'.$end; } 10915: if ($start) { 10916: if ($end) { 10917: $command.='_'.$start; 10918: } else { 10919: $command.='_0_'.$start; 10920: } 10921: } 10922: my $origstart = $start; 10923: my $origend = $end; 10924: my $delflag; 10925: # actually delete 10926: if ($deleteflag) { 10927: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) { 10928: # modify command to delete the role 10929: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:". 10930: "$udom:$uname:$url".'_'."$mrole"; 10931: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom"); 10932: # set start and finish to negative values for userrolelog 10933: $start=-1; 10934: $end=-1; 10935: $delflag = 1; 10936: } 10937: } 10938: # send command 10939: my $answer=&reply($command,&homeserver($uname,$udom)); 10940: # log new user role if status is ok 10941: if ($answer eq 'ok') { 10942: &userrolelog($role,$uname,$udom,$url,$start,$end); 10943: if (($role eq 'cc') || ($role eq 'in') || 10944: ($role eq 'ep') || ($role eq 'ad') || 10945: ($role eq 'ta') || ($role eq 'st') || 10946: ($role=~/^cr/) || ($role eq 'gr') || 10947: ($role eq 'co')) { 10948: # for course roles, perform group memberships changes triggered by role change. 10949: unless ($role =~ /^gr/) { 10950: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend, 10951: $origstart,$selfenroll,$context); 10952: } 10953: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10954: $selfenroll,$context,$othdomby,$requester); 10955: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') || 10956: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') || 10957: ($role eq 'da')) { 10958: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10959: $context,$othdomby,$requester); 10960: } elsif (($role eq 'ca') || ($role eq 'aa')) { 10961: if ($rolelogcontext eq '') { 10962: $rolelogcontext = $context; 10963: } 10964: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10965: $rolelogcontext,$othdomby,$requester); 10966: } 10967: if ($role eq 'cc') { 10968: &autoupdate_coowners($url,$end,$start,$uname,$udom); 10969: } 10970: } 10971: return $answer; 10972: } 10973: 10974: sub autoupdate_coowners { 10975: my ($url,$end,$start,$uname,$udom) = @_; 10976: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)}); 10977: if (($cdom ne '') && ($cnum ne '')) { 10978: my $now = time; 10979: my %domdesign = &Apache::loncommon::get_domainconf($cdom); 10980: if ($domdesign{$cdom.'.autoassign.co-owners'}) { 10981: my %coursehash = &coursedescription($cdom.'_'.$cnum); 10982: my $instcode = $coursehash{'internal.coursecode'}; 10983: my $xlists = $coursehash{'internal.crosslistings'}; 10984: if ($instcode ne '') { 10985: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) { 10986: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) { 10987: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners); 10988: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom); 10989: unless ($result eq 'valid') { 10990: if ($xlists ne '') { 10991: foreach my $xlist (split(',',$xlists)) { 10992: my ($inst_crosslist,$lcsec) = split(':',$xlist); 10993: $result = 10994: &auto_validate_inst_crosslist($cnum,$cdom,$instcode, 10995: $inst_crosslist,$uname.':'.$udom); 10996: last if ($result eq 'valid'); 10997: } 10998: } 10999: } 11000: if ($result eq 'valid') { 11001: if ($coursehash{'internal.co-owners'}) { 11002: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { 11003: push(@newcoowners,$coowner); 11004: } 11005: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) { 11006: push(@newcoowners,$uname.':'.$udom); 11007: } 11008: @newcoowners = sort(@newcoowners); 11009: } else { 11010: push(@newcoowners,$uname.':'.$udom); 11011: } 11012: } elsif ($coursehash{'internal.co-owners'}) { 11013: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { 11014: unless ($coowner eq $uname.':'.$udom) { 11015: push(@newcoowners,$coowner); 11016: } 11017: } 11018: unless (@newcoowners > 0) { 11019: $delcoowners = 1; 11020: $coowners = ''; 11021: } 11022: } 11023: if (@newcoowners || $delcoowners) { 11024: &store_coowners($cdom,$cnum,$coursehash{'home'}, 11025: $delcoowners,@newcoowners); 11026: } 11027: } 11028: } 11029: } 11030: } 11031: } 11032: } 11033: 11034: sub store_coowners { 11035: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_; 11036: my $cid = $cdom.'_'.$cnum; 11037: my ($coowners,$delresult,$putresult); 11038: if (@newcoowners) { 11039: $coowners = join(',',@newcoowners); 11040: my %coownershash = ( 11041: 'internal.co-owners' => $coowners, 11042: ); 11043: $putresult = &put('environment',\%coownershash,$cdom,$cnum); 11044: if ($putresult eq 'ok') { 11045: if ($env{'course.'.$cid.'.num'} eq $cnum) { 11046: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners}); 11047: } 11048: } 11049: } 11050: if ($delcoowners) { 11051: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum); 11052: if ($delresult eq 'ok') { 11053: if ($env{'course.'.$cid.'.internal.co-owners'}) { 11054: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners'); 11055: } 11056: } 11057: } 11058: if (($putresult eq 'ok') || ($delresult eq 'ok')) { 11059: my %crsinfo = 11060: &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); 11061: if (ref($crsinfo{$cid}) eq 'HASH') { 11062: $crsinfo{$cid}{'co-owners'} = \@newcoowners; 11063: my $cidput = &courseidput($cdom,\%crsinfo,$chome,'notime'); 11064: } 11065: } 11066: } 11067: 11068: # -------------------------------------------------- Modify user authentication 11069: # Overrides without validation 11070: 11071: sub modifyuserauth { 11072: my ($udom,$uname,$umode,$upass)=@_; 11073: my $uhome=&homeserver($uname,$udom); 11074: my $allowed; 11075: if (&allowed('mau',$udom)) { 11076: $allowed = 1; 11077: } elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) && 11078: ($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) && 11079: (!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) { 11080: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 11081: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 11082: if (($cdom ne '') && ($cnum ne '')) { 11083: my $is_owner = &is_course_owner($cdom,$cnum); 11084: if ($is_owner) { 11085: $allowed = 1; 11086: } 11087: } 11088: } 11089: unless ($allowed) { return 'refused'; } 11090: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '. 11091: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}. 11092: ' in domain '.$env{'request.role.domain'}); 11093: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'. 11094: &escape($upass),$uhome); 11095: my $ip = &get_requestor_ip(); 11096: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 11097: 'Authentication changed for '.$udom.', '.$uname.', '.$umode. 11098: '(Remote '.$ip.'): '.$reply); 11099: &log($udom,,$uname,$uhome, 11100: 'Authentication changed by '.$env{'user.domain'}.', '. 11101: $env{'user.name'}.', '.$umode. 11102: '(Remote '.$ip.'): '.$reply); 11103: unless ($reply eq 'ok') { 11104: &logthis('Authentication mode error: '.$reply); 11105: return 'error: '.$reply; 11106: } 11107: return 'ok'; 11108: } 11109: 11110: # --------------------------------------------------------------- Modify a user 11111: 11112: sub modifyuser { 11113: my ($udom, $uname, $uid, 11114: $umode, $upass, $first, 11115: $middle, $last, $gene, 11116: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_; 11117: $udom= &LONCAPA::clean_domain($udom); 11118: $uname=&LONCAPA::clean_username($uname); 11119: my $showcandelete = 'none'; 11120: if (ref($candelete) eq 'ARRAY') { 11121: if (@{$candelete} > 0) { 11122: $showcandelete = join(', ',@{$candelete}); 11123: } 11124: } 11125: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '. 11126: $umode.', '.$first.', '.$middle.', '. 11127: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'. 11128: (defined($desiredhome) ? ' desiredhome = '.$desiredhome : 11129: ' desiredhome not specified'). 11130: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}. 11131: ' in domain '.$env{'request.role.domain'}); 11132: my $uhome=&homeserver($uname,$udom,'true'); 11133: my $newuser; 11134: if ($uhome eq 'no_host') { 11135: $newuser = 1; 11136: unless (($umode && ($upass ne '')) || ($umode eq 'localauth') || 11137: ($umode eq 'lti')) { 11138: return 'error: more information needed to create new user'; 11139: } 11140: } 11141: # ----------------------------------------------------------------- Create User 11142: if (($uhome eq 'no_host') && 11143: (($umode && $upass) || ($umode eq 'localauth') || ($umode eq 'lti'))) { 11144: my $unhome=''; 11145: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) { 11146: $unhome = $desiredhome; 11147: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) { 11148: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'}; 11149: } else { # load balancing routine for determining $unhome 11150: my $loadm=10000000; 11151: my %servers = &get_servers($udom,'library'); 11152: foreach my $tryserver (keys(%servers)) { 11153: my $answer=reply('load',$tryserver); 11154: if (($answer=~/\d+/) && ($answer<$loadm)) { 11155: $loadm=$answer; 11156: $unhome=$tryserver; 11157: } 11158: } 11159: } 11160: if (($unhome eq '') || ($unhome eq 'no_host')) { 11161: return 'error: unable to find a home server for '.$uname. 11162: ' in domain '.$udom; 11163: } 11164: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'. 11165: &escape($upass),$unhome); 11166: unless ($reply eq 'ok') { 11167: return 'error: '.$reply; 11168: } 11169: $uhome=&homeserver($uname,$udom,'true'); 11170: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) { 11171: return 'error: unable verify users home machine.'; 11172: } 11173: } # End of creation of new user 11174: # ---------------------------------------------------------------------- Add ID 11175: if ($uid) { 11176: $uid=~tr/A-Z/a-z/; 11177: my %uidhash=&idrget($udom,$uname); 11178: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/) 11179: && (!$forceid)) { 11180: unless ($uid eq $uidhash{$uname}) { 11181: return 'error: user id "'.$uid.'" does not match '. 11182: 'current user id "'.$uidhash{$uname}.'".'; 11183: } 11184: } else { 11185: &idput($udom,{$uname => $uid},$uhome,'ids'); 11186: } 11187: } 11188: # -------------------------------------------------------------- Add names, etc 11189: my @tmp=&get('environment', 11190: ['firstname','middlename','lastname','generation','id', 11191: 'permanentemail','inststatus'], 11192: $udom,$uname); 11193: my (%names,%oldnames); 11194: if ($tmp[0] =~ m/^error:.*/) { 11195: %names=(); 11196: } else { 11197: %names = @tmp; 11198: %oldnames = %names; 11199: } 11200: # 11201: # If name, email and/or uid are blank (e.g., because an uploaded file 11202: # of users did not contain them), do not overwrite existing values 11203: # unless field is in $candelete array ref. 11204: # 11205: 11206: my @fields = ('firstname','middlename','lastname','generation', 11207: 'permanentemail','id'); 11208: my %newvalues; 11209: if (ref($candelete) eq 'ARRAY') { 11210: foreach my $field (@fields) { 11211: if (grep(/^\Q$field\E$/,@{$candelete})) { 11212: if ($field eq 'firstname') { 11213: $names{$field} = $first; 11214: } elsif ($field eq 'middlename') { 11215: $names{$field} = $middle; 11216: } elsif ($field eq 'lastname') { 11217: $names{$field} = $last; 11218: } elsif ($field eq 'generation') { 11219: $names{$field} = $gene; 11220: } elsif ($field eq 'permanentemail') { 11221: $names{$field} = $email; 11222: } elsif ($field eq 'id') { 11223: $names{$field} = $uid; 11224: } 11225: } 11226: } 11227: } 11228: if ($first) { $names{'firstname'} = $first; } 11229: if (defined($middle)) { $names{'middlename'} = $middle; } 11230: if ($last) { $names{'lastname'} = $last; } 11231: if (defined($gene)) { $names{'generation'} = $gene; } 11232: if ($email) { 11233: $email=~s/[^\w\@\.\-\,]//gs; 11234: if ($email=~/\@/) { $names{'permanentemail'} = $email; } 11235: } 11236: if ($uid) { $names{'id'} = $uid; } 11237: if (defined($inststatus)) { 11238: $names{'inststatus'} = ''; 11239: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom); 11240: if (ref($usertypes) eq 'HASH') { 11241: my @okstatuses; 11242: foreach my $item (split(/:/,$inststatus)) { 11243: if (defined($usertypes->{$item})) { 11244: push(@okstatuses,$item); 11245: } 11246: } 11247: if (@okstatuses) { 11248: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses); 11249: } 11250: } 11251: } 11252: my $logmsg = $udom.', '.$uname.', '.$uid.', '. 11253: $umode.', '.$first.', '.$middle.', '. 11254: $last.', '.$gene.', '.$email.', '.$inststatus; 11255: if ($env{'user.name'} ne '' && $env{'user.domain'}) { 11256: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'}; 11257: } else { 11258: $logmsg .= ' during self creation'; 11259: } 11260: my $changed; 11261: if ($newuser) { 11262: $changed = 1; 11263: } else { 11264: foreach my $field (@fields) { 11265: if ($names{$field} ne $oldnames{$field}) { 11266: $changed = 1; 11267: last; 11268: } 11269: } 11270: } 11271: unless ($changed) { 11272: $logmsg = 'No changes in user information needed for: '.$logmsg; 11273: &logthis($logmsg); 11274: return 'ok'; 11275: } 11276: my $reply = &put('environment', \%names, $udom,$uname); 11277: if ($reply ne 'ok') { 11278: return 'error: '.$reply; 11279: } 11280: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) { 11281: &devalidate_cache_new('emailscache',$uname.':'.$udom); 11282: } 11283: my $sqlresult = &update_allusers_table($uname,$udom,\%names); 11284: &devalidate_cache_new('namescache',$uname.':'.$udom); 11285: $logmsg = 'Success modifying user '.$logmsg; 11286: &logthis($logmsg); 11287: return 'ok'; 11288: } 11289: 11290: # -------------------------------------------------------------- Modify student 11291: 11292: sub modifystudent { 11293: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec, 11294: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid, 11295: $selfenroll,$context,$inststatus,$credits,$instsec)=@_; 11296: if (!$cid) { 11297: unless ($cid=$env{'request.course.id'}) { 11298: return 'not_in_class'; 11299: } 11300: } 11301: # --------------------------------------------------------------- Make the user 11302: my $reply=&modifyuser 11303: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid, 11304: $desiredhome,$email,$inststatus); 11305: unless ($reply eq 'ok') { return $reply; } 11306: # This will cause &modify_student_enrollment to get the uid from the 11307: # student's environment 11308: $uid = undef if (!$forceid); 11309: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last, 11310: $gene,$usec,$end,$start,$type,$locktype, 11311: $cid,$selfenroll,$context,$credits,$instsec); 11312: return $reply; 11313: } 11314: 11315: sub modify_student_enrollment { 11316: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type, 11317: $locktype,$cid,$selfenroll,$context,$credits,$instsec,$othdomby,$requester) = @_; 11318: my ($cdom,$cnum,$chome); 11319: if (!$cid) { 11320: unless ($cid=$env{'request.course.id'}) { 11321: return 'not_in_class'; 11322: } 11323: $cdom=$env{'course.'.$cid.'.domain'}; 11324: $cnum=$env{'course.'.$cid.'.num'}; 11325: } else { 11326: ($cdom,$cnum)=split(/_/,$cid); 11327: } 11328: $chome=$env{'course.'.$cid.'.home'}; 11329: if (!$chome) { 11330: $chome=&homeserver($cnum,$cdom); 11331: } 11332: if (!$chome) { return 'unknown_course'; } 11333: # Make sure the user exists 11334: my $uhome=&homeserver($uname,$udom); 11335: if (($uhome eq '') || ($uhome eq 'no_host')) { 11336: return 'error: no such user'; 11337: } 11338: # Get student data if we were not given enough information 11339: if (!defined($first) || $first eq '' || 11340: !defined($last) || $last eq '' || 11341: !defined($uid) || $uid eq '' || 11342: !defined($middle) || $middle eq '' || 11343: !defined($gene) || $gene eq '') { 11344: # They did not supply us with enough data to enroll the student, so 11345: # we need to pick up more information. 11346: my %tmp = &get('environment', 11347: ['firstname','middlename','lastname', 'generation','id'] 11348: ,$udom,$uname); 11349: 11350: #foreach my $key (keys(%tmp)) { 11351: # &logthis("key $key = ".$tmp{$key}); 11352: #} 11353: $first = $tmp{'firstname'} if (!defined($first) || $first eq ''); 11354: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq ''); 11355: $last = $tmp{'lastname'} if (!defined($last) || $last eq ''); 11356: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq ''); 11357: $uid = $tmp{'id'} if (!defined($uid) || $uid eq ''); 11358: } 11359: my $fullname = &format_name($first,$middle,$last,$gene,'lastname'); 11360: my $user = "$uname:$udom"; 11361: my %old_entry = &get('classlist',[$user],$cdom,$cnum); 11362: my $reply=cput('classlist', 11363: {$user => 11364: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) }, 11365: $cdom,$cnum); 11366: if (($reply eq 'ok') || ($reply eq 'delayed')) { 11367: &devalidate_getsection_cache($udom,$uname,$cid); 11368: } else { 11369: return 'error: '.$reply; 11370: } 11371: # Add student role to user 11372: my $uurl='/'.$cid; 11373: $uurl=~s/\_/\//g; 11374: if ($usec) { 11375: $uurl.='/'.$usec; 11376: } 11377: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef, 11378: $selfenroll,$context,$othdomby,$requester); 11379: if ($result ne 'ok') { 11380: if ($old_entry{$user} ne '') { 11381: $reply = &cput('classlist',\%old_entry,$cdom,$cnum); 11382: } else { 11383: $reply = &del('classlist',[$user],$cdom,$cnum); 11384: } 11385: } 11386: return $result; 11387: } 11388: 11389: sub format_name { 11390: my ($firstname,$middlename,$lastname,$generation,$first)=@_; 11391: my $name; 11392: if ($first ne 'lastname') { 11393: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation; 11394: } else { 11395: if ($lastname=~/\S/) { 11396: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename; 11397: $name=~s/\s+,/,/; 11398: } else { 11399: $name.= $firstname.' '.$middlename.' '.$generation; 11400: } 11401: } 11402: $name=~s/^\s+//; 11403: $name=~s/\s+$//; 11404: $name=~s/\s+/ /g; 11405: return $name; 11406: } 11407: 11408: # ------------------------------------------------- Write to course preferences 11409: 11410: sub writecoursepref { 11411: my ($courseid,%prefs)=@_; 11412: $courseid=~s/^\///; 11413: $courseid=~s/\_/\//g; 11414: my ($cdomain,$cnum)=split(/\//,$courseid); 11415: my $chome=homeserver($cnum,$cdomain); 11416: if (($chome eq '') || ($chome eq 'no_host')) { 11417: return 'error: no such course'; 11418: } 11419: my $cstring=''; 11420: foreach my $pref (keys(%prefs)) { 11421: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&'; 11422: } 11423: $cstring=~s/\&$//; 11424: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome); 11425: } 11426: 11427: # ---------------------------------------------------------- Make/modify course 11428: 11429: sub createcourse { 11430: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code, 11431: $course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_; 11432: $url=&declutter($url); 11433: my $cid=''; 11434: if ($context eq 'requestcourses') { 11435: my $can_create = 0; 11436: my ($ownername,$ownerdom) = split(':',$course_owner); 11437: if ($udom eq $ownerdom) { 11438: my $reload; 11439: if (($callercontext eq 'auto') && 11440: ($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) { 11441: $reload = 'reload'; 11442: } 11443: if (&usertools_access($ownername,$ownerdom,$category,$reload, 11444: $context)) { 11445: $can_create = 1; 11446: } 11447: } else { 11448: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'. 11449: $category); 11450: if ($userenv{'reqcrsotherdom.'.$category} ne '') { 11451: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category}); 11452: if (@curr > 0) { 11453: my @options = qw(approval validate autolimit); 11454: my $optregex = join('|',@options); 11455: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) { 11456: $can_create = 1; 11457: } 11458: } 11459: } 11460: } 11461: if ($can_create) { 11462: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) { 11463: unless (&allowed('ccc',$udom)) { 11464: return 'refused'; 11465: } 11466: } 11467: } else { 11468: return 'refused'; 11469: } 11470: } elsif (!&allowed('ccc',$udom)) { 11471: return 'refused'; 11472: } 11473: # --------------------------------------------------------------- Get Unique ID 11474: my $uname; 11475: if ($cnum =~ /^$match_courseid$/) { 11476: my $chome=&homeserver($cnum,$udom,'true'); 11477: if (($chome eq '') || ($chome eq 'no_host')) { 11478: $uname = $cnum; 11479: } else { 11480: $uname = &generate_coursenum($udom,$crstype); 11481: } 11482: } else { 11483: $uname = &generate_coursenum($udom,$crstype); 11484: } 11485: return $uname if ($uname =~ /^error/); 11486: # -------------------------------------------------- Check supplied server name 11487: if (!defined($course_server)) { 11488: if (defined(&domain($udom,'primary'))) { 11489: $course_server = &domain($udom,'primary'); 11490: } else { 11491: $course_server = $env{'user.home'}; 11492: } 11493: } 11494: my %host_servers = 11495: &get_servers($udom,'library'); 11496: unless ($host_servers{$course_server}) { 11497: return 'error: invalid home server for course: '.$course_server; 11498: } 11499: # ------------------------------------------------------------- Make the course 11500: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::', 11501: $course_server); 11502: unless ($reply eq 'ok') { return 'error: '.$reply; } 11503: my $uhome=&homeserver($uname,$udom,'true'); 11504: if (($uhome eq '') || ($uhome eq 'no_host')) { 11505: return 'error: no such course'; 11506: } 11507: # ----------------------------------------------------------------- Course made 11508: # log existence 11509: my $now = time; 11510: my $newcourse = { 11511: $udom.'_'.$uname => { 11512: description => $description, 11513: inst_code => $inst_code, 11514: owner => $course_owner, 11515: type => $crstype, 11516: creator => $env{'user.name'}.':'. 11517: $env{'user.domain'}, 11518: created => $now, 11519: context => $context, 11520: }, 11521: }; 11522: &courseidput($udom,$newcourse,$uhome,'notime'); 11523: # set toplevel url 11524: my $topurl=$url; 11525: unless ($nonstandard) { 11526: # ------------------------------------------ For standard courses, make top url 11527: my $mapurl=&clutter($url); 11528: if ($mapurl eq '/res/') { $mapurl=''; } 11529: $env{'form.initmap'}=(<<ENDINITMAP); 11530: <map> 11531: <resource id="1" type="start"></resource> 11532: <resource id="2" src="$mapurl"></resource> 11533: <resource id="3" type="finish"></resource> 11534: <link index="1" from="1" to="2"></link> 11535: <link index="2" from="2" to="3"></link> 11536: </map> 11537: ENDINITMAP 11538: $topurl=&declutter( 11539: &finishuserfileupload($uname,$udom,'initmap','default.sequence') 11540: ); 11541: } 11542: # ----------------------------------------------------------- Write preferences 11543: &writecoursepref($udom.'_'.$uname, 11544: ('description' => $description, 11545: 'url' => $topurl, 11546: 'internal.creator' => $env{'user.name'}.':'. 11547: $env{'user.domain'}, 11548: 'internal.created' => $now, 11549: 'internal.creationcontext' => $context) 11550: ); 11551: return '/'.$udom.'/'.$uname; 11552: } 11553: 11554: # ------------------------------------------------------------------- Create ID 11555: sub generate_coursenum { 11556: my ($udom,$crstype) = @_; 11557: my $domdesc = &domain($udom); 11558: return 'error: invalid domain' if ($domdesc eq ''); 11559: my $first; 11560: if ($crstype eq 'Community') { 11561: $first = '0'; 11562: } else { 11563: $first = int(1+rand(9)); 11564: } 11565: my $uname=$first. 11566: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. 11567: substr($$.time,0,5).unpack("H8",pack("I32",time)). 11568: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; 11569: # ----------------------------------------------- Make sure that does not exist 11570: my $uhome=&homeserver($uname,$udom,'true'); 11571: unless (($uhome eq '') || ($uhome eq 'no_host')) { 11572: if ($crstype eq 'Community') { 11573: $first = '0'; 11574: } else { 11575: $first = int(1+rand(9)); 11576: } 11577: $uname=$first. 11578: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. 11579: substr($$.time,0,5).unpack("H8",pack("I32",time)). 11580: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; 11581: $uhome=&homeserver($uname,$udom,'true'); 11582: unless (($uhome eq '') || ($uhome eq 'no_host')) { 11583: return 'error: unable to generate unique course-ID'; 11584: } 11585: } 11586: return $uname; 11587: } 11588: 11589: sub is_course { 11590: my ($cdom, $cnum) = scalar(@_) == 1 ? 11591: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_; 11592: 11593: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)); 11594: my $uhome=&homeserver($cnum,$cdom); 11595: my $iscourse; 11596: if (grep { $_ eq $uhome } current_machine_ids()) { 11597: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum); 11598: } else { 11599: my $hashid = $cdom.':'.$cnum; 11600: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid); 11601: unless (defined($cached)) { 11602: my %courses = &courseiddump($cdom, '.', 1, '.', '.', 11603: $cnum,undef,undef,'.'); 11604: $iscourse = 0; 11605: if (exists($courses{$cdom.'_'.$cnum})) { 11606: $iscourse = 1; 11607: } 11608: &do_cache_new('iscourse',$hashid,$iscourse,3600); 11609: } 11610: } 11611: return unless ($iscourse); 11612: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum; 11613: } 11614: 11615: sub store_userdata { 11616: my ($storehash,$datakey,$namespace,$udom,$uname) = @_; 11617: my $result; 11618: if ($datakey ne '') { 11619: if (ref($storehash) eq 'HASH') { 11620: if ($udom eq '' || $uname eq '') { 11621: $udom = $env{'user.domain'}; 11622: $uname = $env{'user.name'}; 11623: } 11624: my $uhome=&homeserver($uname,$udom); 11625: if (($uhome eq '') || ($uhome eq 'no_host')) { 11626: $result = 'error: no_host'; 11627: } else { 11628: $storehash->{'ip'} = &get_requestor_ip(); 11629: $storehash->{'host'} = $perlvar{'lonHostID'}; 11630: 11631: my $namevalue=''; 11632: foreach my $key (keys(%{$storehash})) { 11633: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 11634: } 11635: $namevalue=~s/\&$//; 11636: unless ($namespace eq 'courserequests') { 11637: $datakey = &escape($datakey); 11638: } 11639: $result = &reply("store:$udom:$uname:$namespace:$datakey:". 11640: $namevalue,$uhome); 11641: } 11642: } else { 11643: $result = 'error: data to store was not a hash reference'; 11644: } 11645: } else { 11646: $result= 'error: invalid requestkey'; 11647: } 11648: return $result; 11649: } 11650: 11651: # ---------------------------------------------------------- Assign Custom Role 11652: 11653: sub assigncustomrole { 11654: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag, 11655: $selfenroll,$context,$othdomby,$requester)=@_; 11656: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename, 11657: $end,$start,$deleteflag,$selfenroll,$context,$othdomby, 11658: $requester); 11659: } 11660: 11661: # ----------------------------------------------------------------- Revoke Role 11662: 11663: sub revokerole { 11664: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_; 11665: my $now=time; 11666: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context); 11667: } 11668: 11669: # ---------------------------------------------------------- Revoke Custom Role 11670: 11671: sub revokecustomrole { 11672: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_; 11673: my $now=time; 11674: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now, 11675: $deleteflag,$selfenroll,$context); 11676: } 11677: 11678: # ------------------------------------------------------------ Disk usage 11679: sub diskusage { 11680: my ($udom,$uname,$directorypath,$getpropath)=@_; 11681: $directorypath =~ s/\/$//; 11682: my $listing=&reply('du2:'.&escape($directorypath).':' 11683: .&escape($getpropath).':'.&escape($uname).':' 11684: .&escape($udom),homeserver($uname,$udom)); 11685: if ($listing eq 'unknown_cmd') { 11686: if ($getpropath) { 11687: $directorypath = &propath($udom,$uname).'/'.$directorypath; 11688: } 11689: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom)); 11690: } 11691: return $listing; 11692: } 11693: 11694: sub is_locked { 11695: my ($file_name, $domain, $user, $which) = @_; 11696: my @check; 11697: my $is_locked; 11698: push (@check,$file_name); 11699: my %locked = &get('file_permissions',\@check, 11700: $env{'user.domain'},$env{'user.name'}); 11701: my ($tmp)=keys(%locked); 11702: if ($tmp=~/^error:/) { undef(%locked); } 11703: 11704: if (ref($locked{$file_name}) eq 'ARRAY') { 11705: $is_locked = 'false'; 11706: foreach my $entry (@{$locked{$file_name}}) { 11707: if (ref($entry) eq 'ARRAY') { 11708: $is_locked = 'true'; 11709: if (ref($which) eq 'ARRAY') { 11710: push(@{$which},$entry); 11711: } else { 11712: last; 11713: } 11714: } 11715: } 11716: } else { 11717: $is_locked = 'false'; 11718: } 11719: return $is_locked; 11720: } 11721: 11722: sub declutter_portfile { 11723: my ($file) = @_; 11724: $file =~ s{^(/portfolio/|portfolio/)}{/}; 11725: return $file; 11726: } 11727: 11728: # ------------------------------------------------------------- Mark as Read Only 11729: 11730: sub mark_as_readonly { 11731: my ($domain,$user,$files,$what) = @_; 11732: my %current_permissions = &dump('file_permissions',$domain,$user); 11733: my ($tmp)=keys(%current_permissions); 11734: if ($tmp=~/^error:/) { undef(%current_permissions); } 11735: foreach my $file (@{$files}) { 11736: $file = &declutter_portfile($file); 11737: push(@{$current_permissions{$file}},$what); 11738: } 11739: &put('file_permissions',\%current_permissions,$domain,$user); 11740: return; 11741: } 11742: 11743: # ------------------------------------------------------------Save Selected Files 11744: 11745: sub save_selected_files { 11746: my ($user, $path, @files) = @_; 11747: my $filename = $user."savedfiles"; 11748: my @other_files = &files_not_in_path($user, $path); 11749: open (OUT,'>',LONCAPA::tempdir().$filename); 11750: foreach my $file (@files) { 11751: print (OUT $env{'form.currentpath'}.$file."\n"); 11752: } 11753: foreach my $file (@other_files) { 11754: print (OUT $file."\n"); 11755: } 11756: close (OUT); 11757: return 'ok'; 11758: } 11759: 11760: sub clear_selected_files { 11761: my ($user) = @_; 11762: my $filename = $user."savedfiles"; 11763: open (OUT,'>',LONCAPA::tempdir().$filename); 11764: print (OUT undef); 11765: close (OUT); 11766: return ("ok"); 11767: } 11768: 11769: sub files_in_path { 11770: my ($user, $path) = @_; 11771: my $filename = $user."savedfiles"; 11772: my %return_files; 11773: open (IN,'<',LONCAPA::tempdir().$filename); 11774: while (my $line_in = <IN>) { 11775: chomp ($line_in); 11776: my @paths_and_file = split (m!/!, $line_in); 11777: my $file_part = pop (@paths_and_file); 11778: my $path_part = join ('/', @paths_and_file); 11779: $path_part.='/'; 11780: my $path_and_file = $path_part.$file_part; 11781: if ($path_part eq $path) { 11782: $return_files{$file_part}= 'selected'; 11783: } 11784: } 11785: close (IN); 11786: return (\%return_files); 11787: } 11788: 11789: # called in portfolio select mode, to show files selected NOT in current directory 11790: sub files_not_in_path { 11791: my ($user, $path) = @_; 11792: my $filename = $user."savedfiles"; 11793: my @return_files; 11794: my $path_part; 11795: open(IN, '<',LONCAPA::tempdir().$filename); 11796: while (my $line = <IN>) { 11797: #ok, I know it's clunky, but I want it to work 11798: my @paths_and_file = split(m|/|, $line); 11799: my $file_part = pop(@paths_and_file); 11800: chomp($file_part); 11801: my $path_part = join('/', @paths_and_file); 11802: $path_part .= '/'; 11803: my $path_and_file = $path_part.$file_part; 11804: if ($path_part ne $path) { 11805: push(@return_files, ($path_and_file)); 11806: } 11807: } 11808: close(OUT); 11809: return (@return_files); 11810: } 11811: 11812: #------------------------------Submitted/Handedback Portfolio Files Versioning 11813: 11814: sub portfiles_versioning { 11815: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_; 11816: my $portfolio_root = '/userfiles/portfolio'; 11817: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY')); 11818: foreach my $file (@{$portfiles}) { 11819: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file); 11820: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/); 11821: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file); 11822: my $getpropath = 1; 11823: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain, 11824: $stu_name,$getpropath); 11825: my $version = &get_next_version($answer_name,$answer_ext,$dir_list); 11826: my $new_answer = 11827: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version); 11828: if ($new_answer ne 'problem getting file') { 11829: push(@{$versioned_portfiles}, $directory.$new_answer); 11830: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer], 11831: [$symb,$env{'request.course.id'},'graded']); 11832: } 11833: } 11834: } 11835: 11836: sub get_next_version { 11837: my ($answer_name, $answer_ext, $dir_list) = @_; 11838: my $version; 11839: if (ref($dir_list) eq 'ARRAY') { 11840: foreach my $row (@{$dir_list}) { 11841: my ($file) = split(/\&/,$row,2); 11842: my ($file_name,$file_version,$file_ext) = 11843: &file_name_version_ext($file); 11844: if (($file_name eq $answer_name) && 11845: ($file_ext eq $answer_ext)) { 11846: # gets here if filename and extension match, 11847: # regardless of version 11848: if ($file_version ne '') { 11849: # a versioned file is found so save it for later 11850: if ($file_version > $version) { 11851: $version = $file_version; 11852: } 11853: } 11854: } 11855: } 11856: } 11857: $version ++; 11858: return($version); 11859: } 11860: 11861: sub version_selected_portfile { 11862: my ($domain,$stu_name,$directory,$file_name,$version) = @_; 11863: my ($answer_name,$answer_ver,$answer_ext) = 11864: &file_name_version_ext($file_name); 11865: my $new_answer; 11866: $env{'form.copy'} = 11867: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name"); 11868: if($env{'form.copy'} eq '-1') { 11869: $new_answer = 'problem getting file'; 11870: } else { 11871: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext; 11872: my $copy_result = 11873: &finishuserfileupload($stu_name,$domain,'copy', 11874: '/portfolio'.$directory.$new_answer); 11875: } 11876: undef($env{'form.copy'}); 11877: return ($new_answer); 11878: } 11879: 11880: sub file_name_version_ext { 11881: my ($file)=@_; 11882: my @file_parts = split(/\./, $file); 11883: my ($name,$version,$ext); 11884: if (@file_parts > 1) { 11885: $ext=pop(@file_parts); 11886: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) { 11887: $version=pop(@file_parts); 11888: } 11889: $name=join('.',@file_parts); 11890: } else { 11891: $name=join('.',@file_parts); 11892: } 11893: return($name,$version,$ext); 11894: } 11895: 11896: #----------------------------------------------Get portfolio file permissions 11897: 11898: sub get_portfile_permissions { 11899: my ($domain,$user) = @_; 11900: my %current_permissions = &dump('file_permissions',$domain,$user); 11901: my ($tmp)=keys(%current_permissions); 11902: if ($tmp=~/^error:/) { undef(%current_permissions); } 11903: return \%current_permissions; 11904: } 11905: 11906: #---------------------------------------------Get portfolio file access controls 11907: 11908: sub get_access_controls { 11909: my ($current_permissions,$group,$file) = @_; 11910: my %access; 11911: my $real_file = $file; 11912: $file =~ s/\.meta$//; 11913: if (defined($file)) { 11914: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') { 11915: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) { 11916: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control}; 11917: } 11918: } 11919: } else { 11920: foreach my $key (keys(%{$current_permissions})) { 11921: if ($key =~ /\0accesscontrol$/) { 11922: if (defined($group)) { 11923: if ($key !~ m-^\Q$group\E/-) { 11924: next; 11925: } 11926: } 11927: my ($fullpath) = split(/\0/,$key); 11928: if (ref($$current_permissions{$key}) eq 'HASH') { 11929: foreach my $control (keys(%{$$current_permissions{$key}})) { 11930: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control}; 11931: } 11932: } 11933: } 11934: } 11935: } 11936: return %access; 11937: } 11938: 11939: sub modify_access_controls { 11940: my ($file_name,$changes,$domain,$user)=@_; 11941: my ($outcome,$deloutcome); 11942: my %store_permissions; 11943: my %new_values; 11944: my %new_control; 11945: my %translation; 11946: my @deletions = (); 11947: my $now = time; 11948: if (exists($$changes{'activate'})) { 11949: if (ref($$changes{'activate'}) eq 'HASH') { 11950: my @newitems = sort(keys(%{$$changes{'activate'}})); 11951: my $numnew = scalar(@newitems); 11952: for (my $i=0; $i<$numnew; $i++) { 11953: my $newkey = $newitems[$i]; 11954: my $newid = &Apache::loncommon::get_cgi_id(); 11955: if ($newkey =~ /^\d+:/) { 11956: $newkey =~ s/^(\d+)/$newid/; 11957: $translation{$1} = $newid; 11958: } elsif ($newkey =~ /^\d+_\d+_\d+:/) { 11959: $newkey =~ s/^(\d+_\d+_\d+)/$newid/; 11960: $translation{$1} = $newid; 11961: } 11962: $new_values{$file_name."\0".$newkey} = 11963: $$changes{'activate'}{$newitems[$i]}; 11964: $new_control{$newkey} = $now; 11965: } 11966: } 11967: } 11968: my %todelete; 11969: my %changed_items; 11970: foreach my $action ('delete','update') { 11971: if (exists($$changes{$action})) { 11972: if (ref($$changes{$action}) eq 'HASH') { 11973: foreach my $key (keys(%{$$changes{$action}})) { 11974: my ($itemnum) = ($key =~ /^([^:]+):/); 11975: if ($action eq 'delete') { 11976: $todelete{$itemnum} = 1; 11977: } else { 11978: $changed_items{$itemnum} = $key; 11979: } 11980: } 11981: } 11982: } 11983: } 11984: # get lock on access controls for file. 11985: my $lockhash = { 11986: $file_name."\0".'locked_access_records' => $env{'user.name'}. 11987: ':'.$env{'user.domain'}, 11988: }; 11989: my $tries = 0; 11990: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user); 11991: 11992: while (($gotlock ne 'ok') && $tries < 10) { 11993: $tries ++; 11994: sleep(0.1); 11995: $gotlock = &newput('file_permissions',$lockhash,$domain,$user); 11996: } 11997: if ($gotlock eq 'ok') { 11998: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name); 11999: my ($tmp)=keys(%curr_permissions); 12000: if ($tmp=~/^error:/) { undef(%curr_permissions); } 12001: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) { 12002: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'}; 12003: if (ref($curr_controls) eq 'HASH') { 12004: foreach my $control_item (keys(%{$curr_controls})) { 12005: my ($itemnum) = ($control_item =~ /^([^:]+):/); 12006: if (defined($todelete{$itemnum})) { 12007: push(@deletions,$file_name."\0".$control_item); 12008: } else { 12009: if (defined($changed_items{$itemnum})) { 12010: $new_control{$changed_items{$itemnum}} = $now; 12011: push(@deletions,$file_name."\0".$control_item); 12012: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}}; 12013: } else { 12014: $new_control{$control_item} = $$curr_controls{$control_item}; 12015: } 12016: } 12017: } 12018: } 12019: } 12020: my ($group); 12021: if (&is_course($domain,$user)) { 12022: ($group,my $file) = split(/\//,$file_name,2); 12023: } 12024: $deloutcome = &del('file_permissions',\@deletions,$domain,$user); 12025: $new_values{$file_name."\0".'accesscontrol'} = \%new_control; 12026: $outcome = &put('file_permissions',\%new_values,$domain,$user); 12027: # remove lock 12028: my @del_lock = ($file_name."\0".'locked_access_records'); 12029: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user); 12030: my $sqlresult = 12031: &update_portfolio_table($user,$domain,$file_name,'portfolio_access', 12032: $group); 12033: } else { 12034: $outcome = "error: could not obtain lockfile\n"; 12035: } 12036: return ($outcome,$deloutcome,\%new_values,\%translation); 12037: } 12038: 12039: sub make_public_indefinitely { 12040: my (@requrl) = @_; 12041: return &automated_portfile_access('public',\@requrl); 12042: } 12043: 12044: sub automated_portfile_access { 12045: my ($accesstype,$addsref,$delsref,$info) = @_; 12046: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) { 12047: return 'invalid'; 12048: } 12049: my %urls; 12050: if (ref($addsref) eq 'ARRAY') { 12051: foreach my $requrl (@{$addsref}) { 12052: if (&is_portfolio_url($requrl)) { 12053: unless (exists($urls{$requrl})) { 12054: $urls{$requrl} = 'add'; 12055: } 12056: } 12057: } 12058: } 12059: if (ref($delsref) eq 'ARRAY') { 12060: foreach my $requrl (@{$delsref}) { 12061: if (&is_portfolio_url($requrl)) { 12062: unless (exists($urls{$requrl})) { 12063: $urls{$requrl} = 'delete'; 12064: } 12065: } 12066: } 12067: } 12068: unless (keys(%urls)) { 12069: return 'invalid'; 12070: } 12071: my $ip; 12072: if ($accesstype eq 'ip') { 12073: if (ref($info) eq 'HASH') { 12074: if ($info->{'ip'} ne '') { 12075: $ip = $info->{'ip'}; 12076: } 12077: } 12078: if ($ip eq '') { 12079: return 'invalid'; 12080: } 12081: } 12082: my $errors; 12083: my $now = time; 12084: my %current_perms; 12085: foreach my $requrl (sort(keys(%urls))) { 12086: my $action; 12087: if ($urls{$requrl} eq 'add') { 12088: $action = 'activate'; 12089: } else { 12090: $action = 'none'; 12091: } 12092: my $aclnum = 0; 12093: my (undef,$udom,$unum,$file_name,$group) = 12094: &parse_portfolio_url($requrl); 12095: unless (exists($current_perms{$unum.':'.$udom})) { 12096: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum); 12097: } 12098: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom}, 12099: $group,$file_name); 12100: foreach my $key (keys(%{$access_controls{$file_name}})) { 12101: my ($num,$scope,$end,$start) = 12102: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); 12103: if ($scope eq $accesstype) { 12104: if (($start <= $now) && ($end == 0)) { 12105: if ($accesstype eq 'ip') { 12106: if (ref($access_controls{$file_name}{$key}) eq 'HASH') { 12107: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') { 12108: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) { 12109: if ($urls{$requrl} eq 'add') { 12110: $action = 'none'; 12111: last; 12112: } else { 12113: $action = 'delete'; 12114: $aclnum = $num; 12115: last; 12116: } 12117: } 12118: } 12119: } 12120: } elsif ($accesstype eq 'public') { 12121: if ($urls{$requrl} eq 'add') { 12122: $action = 'none'; 12123: last; 12124: } else { 12125: $action = 'delete'; 12126: $aclnum = $num; 12127: last; 12128: } 12129: } 12130: } elsif ($accesstype eq 'public') { 12131: $action = 'update'; 12132: $aclnum = $num; 12133: last; 12134: } 12135: } 12136: } 12137: if ($action eq 'none') { 12138: next; 12139: } else { 12140: my %changes; 12141: my $newend = 0; 12142: my $newstart = $now; 12143: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart; 12144: $changes{$action}{$newkey} = { 12145: type => $accesstype, 12146: time => { 12147: start => $newstart, 12148: end => $newend, 12149: }, 12150: }; 12151: if ($accesstype eq 'ip') { 12152: $changes{$action}{$newkey}{'ip'} = [$ip]; 12153: } 12154: my ($outcome,$deloutcome,$new_values,$translation) = 12155: &modify_access_controls($file_name,\%changes,$udom,$unum); 12156: unless ($outcome eq 'ok') { 12157: $errors .= $outcome.' '; 12158: } 12159: } 12160: } 12161: if ($errors) { 12162: $errors =~ s/\s$//; 12163: return $errors; 12164: } else { 12165: return 'ok'; 12166: } 12167: } 12168: 12169: #------------------------------------------------------Get Marked as Read Only 12170: 12171: sub get_marked_as_readonly { 12172: my ($domain,$user,$what,$group) = @_; 12173: my $current_permissions = &get_portfile_permissions($domain,$user); 12174: my @readonly_files; 12175: my $cmp1=$what; 12176: if (ref($what)) { $cmp1=join('',@{$what}) }; 12177: while (my ($file_name,$value) = each(%{$current_permissions})) { 12178: if (defined($group)) { 12179: if ($file_name !~ m-^\Q$group\E/-) { 12180: next; 12181: } 12182: } 12183: if (ref($value) eq "ARRAY"){ 12184: foreach my $stored_what (@{$value}) { 12185: my $cmp2=$stored_what; 12186: if (ref($stored_what) eq 'ARRAY') { 12187: $cmp2=join('',@{$stored_what}); 12188: } 12189: if ($cmp1 eq $cmp2) { 12190: push(@readonly_files, $file_name); 12191: last; 12192: } elsif (!defined($what)) { 12193: push(@readonly_files, $file_name); 12194: last; 12195: } 12196: } 12197: } 12198: } 12199: return @readonly_files; 12200: } 12201: #-----------------------------------------------------------Get Marked as Read Only Hash 12202: 12203: sub get_marked_as_readonly_hash { 12204: my ($current_permissions,$group,$what) = @_; 12205: my %readonly_files; 12206: while (my ($file_name,$value) = each(%{$current_permissions})) { 12207: if (defined($group)) { 12208: if ($file_name !~ m-^\Q$group\E/-) { 12209: next; 12210: } 12211: } 12212: if (ref($value) eq "ARRAY"){ 12213: foreach my $stored_what (@{$value}) { 12214: if (ref($stored_what) eq 'ARRAY') { 12215: foreach my $lock_descriptor(@{$stored_what}) { 12216: if ($lock_descriptor eq 'graded') { 12217: $readonly_files{$file_name} = 'graded'; 12218: } elsif ($lock_descriptor eq 'handback') { 12219: $readonly_files{$file_name} = 'handback'; 12220: } else { 12221: if (!exists($readonly_files{$file_name})) { 12222: $readonly_files{$file_name} = 'locked'; 12223: } 12224: } 12225: } 12226: } 12227: } 12228: } 12229: } 12230: return %readonly_files; 12231: } 12232: # ------------------------------------------------------------ Unmark as Read Only 12233: 12234: sub unmark_as_readonly { 12235: # unmarks $file_name (if $file_name is defined), or all files locked by $what 12236: # for portfolio submissions, $what contains [$symb,$crsid] 12237: my ($domain,$user,$what,$file_name,$group) = @_; 12238: $file_name = &declutter_portfile($file_name); 12239: my $symb_crs = $what; 12240: if (ref($what)) { $symb_crs=join('',@$what); } 12241: my %current_permissions = &dump('file_permissions',$domain,$user,$group); 12242: my ($tmp)=keys(%current_permissions); 12243: if ($tmp=~/^error:/) { undef(%current_permissions); } 12244: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group); 12245: foreach my $file (@readonly_files) { 12246: my $clean_file = &declutter_portfile($file); 12247: if (defined($file_name) && ($file_name ne $clean_file)) { next; } 12248: my $current_locks = $current_permissions{$file}; 12249: my @new_locks; 12250: my @del_keys; 12251: if (ref($current_locks) eq "ARRAY"){ 12252: foreach my $locker (@{$current_locks}) { 12253: my $compare=$locker; 12254: if (ref($locker) eq 'ARRAY') { 12255: $compare=join('',@{$locker}); 12256: if ($compare ne $symb_crs) { 12257: push(@new_locks, $locker); 12258: } 12259: } 12260: } 12261: if (scalar(@new_locks) > 0) { 12262: $current_permissions{$file} = \@new_locks; 12263: } else { 12264: push(@del_keys, $file); 12265: &del('file_permissions',\@del_keys, $domain, $user); 12266: delete($current_permissions{$file}); 12267: } 12268: } 12269: } 12270: &put('file_permissions',\%current_permissions,$domain,$user); 12271: return; 12272: } 12273: 12274: # ------------------------------------------------------------ Directory lister 12275: 12276: sub dirlist { 12277: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_; 12278: $uri=~s/^\///; 12279: $uri=~s/\/$//; 12280: my ($udom, $uname); 12281: if ($getuserdir) { 12282: $udom = $userdomain; 12283: $uname = $username; 12284: } else { 12285: (undef,$udom,$uname)=split(/\//,$uri); 12286: if(defined($userdomain)) { 12287: $udom = $userdomain; 12288: } 12289: if(defined($username)) { 12290: $uname = $username; 12291: } 12292: } 12293: my ($dirRoot,$listing,@listing_results); 12294: 12295: $dirRoot = $perlvar{'lonDocRoot'}; 12296: if (defined($getpropath)) { 12297: $dirRoot = &propath($udom,$uname); 12298: $dirRoot =~ s/\/$//; 12299: } elsif (defined($getuserdir)) { 12300: my $subdir=$uname.'__'; 12301: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; 12302: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'} 12303: ."/$udom/$subdir/$uname"; 12304: } elsif (defined($alternateRoot)) { 12305: $dirRoot = $alternateRoot; 12306: } 12307: 12308: if($udom) { 12309: if($uname) { 12310: my $uhome = &homeserver($uname,$udom); 12311: if ($uhome eq 'no_host') { 12312: return ([],'no_host'); 12313: } 12314: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':' 12315: .$getuserdir.':'.&escape($dirRoot) 12316: .':'.&escape($uname).':'.&escape($udom),$uhome); 12317: if ($listing eq 'unknown_cmd') { 12318: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome); 12319: } else { 12320: @listing_results = map { &unescape($_); } split(/:/,$listing); 12321: } 12322: if ($listing eq 'unknown_cmd') { 12323: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome); 12324: @listing_results = split(/:/,$listing); 12325: } else { 12326: @listing_results = map { &unescape($_); } split(/:/,$listing); 12327: } 12328: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || 12329: ($listing eq 'rejected') || ($listing eq 'refused') || 12330: ($listing eq 'no_such_dir') || ($listing eq 'empty')) { 12331: return ([],$listing); 12332: } else { 12333: return (\@listing_results); 12334: } 12335: } elsif(!$alternateRoot) { 12336: my (%allusers,%listerror); 12337: my %servers = &get_servers($udom,'library'); 12338: foreach my $tryserver (keys(%servers)) { 12339: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'. 12340: &escape($udom),$tryserver); 12341: if ($listing eq 'unknown_cmd') { 12342: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'. 12343: $udom, $tryserver); 12344: } else { 12345: @listing_results = map { &unescape($_); } split(/:/,$listing); 12346: } 12347: if ($listing eq 'unknown_cmd') { 12348: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'. 12349: $udom, $tryserver); 12350: @listing_results = split(/:/,$listing); 12351: } else { 12352: @listing_results = 12353: map { &unescape($_); } split(/:/,$listing); 12354: } 12355: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || 12356: ($listing eq 'rejected') || ($listing eq 'refused') || 12357: ($listing eq 'no_such_dir') || ($listing eq 'empty')) { 12358: $listerror{$tryserver} = $listing; 12359: } else { 12360: foreach my $line (@listing_results) { 12361: my ($entry) = split(/&/,$line,2); 12362: $allusers{$entry} = 1; 12363: } 12364: } 12365: } 12366: my @alluserslist=(); 12367: foreach my $user (sort(keys(%allusers))) { 12368: push(@alluserslist,$user.'&user'); 12369: } 12370: 12371: if (!%listerror) { 12372: # no errors 12373: return (\@alluserslist); 12374: } elsif (scalar(keys(%servers)) == 1) { 12375: # one library server, one error 12376: my ($key) = keys(%listerror); 12377: return (\@alluserslist, $listerror{$key}); 12378: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) { 12379: # con_lost indicates that we might miss data from at least one 12380: # library server 12381: return (\@alluserslist, 'con_lost'); 12382: } else { 12383: # multiple library servers and no con_lost -> data should be 12384: # complete. 12385: return (\@alluserslist); 12386: } 12387: 12388: } else { 12389: return ([],'missing username'); 12390: } 12391: } elsif(!defined($getpropath)) { 12392: my $path = $perlvar{'lonDocRoot'}.'/res/'; 12393: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains())); 12394: return (\@all_domains); 12395: } else { 12396: return ([],'missing domain'); 12397: } 12398: } 12399: 12400: # --------------------------------------------- GetFileTimestamp 12401: # This function utilizes dirlist and returns the date stamp for 12402: # when it was last modified. It will also return an error of -1 12403: # if an error occurs 12404: 12405: sub GetFileTimestamp { 12406: my ($studentDomain,$studentName,$filename,$getuserdir)=@_; 12407: $studentDomain = &LONCAPA::clean_domain($studentDomain); 12408: $studentName = &LONCAPA::clean_username($studentName); 12409: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName, 12410: undef,$getuserdir); 12411: if (($error eq 'empty') || ($error eq 'no_such_dir')) { 12412: return -1; 12413: } 12414: if (ref($fileref) eq 'ARRAY') { 12415: my @stats = split('&',$fileref->[0]); 12416: # @stats contains first the filename, then the stat output 12417: return $stats[10]; # so this is 10 instead of 9. 12418: } else { 12419: return -1; 12420: } 12421: } 12422: 12423: sub stat_file { 12424: my ($uri) = @_; 12425: $uri = &clutter_with_no_wrapper($uri); 12426: 12427: my ($udom,$uname,$file); 12428: if ($uri =~ m-^/(uploaded|editupload)/-) { 12429: ($udom,$uname,$file) = 12430: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-); 12431: $file = 'userfiles/'.$file; 12432: } 12433: if ($uri =~ m-^/res/-) { 12434: ($udom,$uname) = 12435: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-); 12436: $file = $uri; 12437: } 12438: 12439: if (!$udom || !$uname || !$file) { 12440: # unable to handle the uri 12441: return (); 12442: } 12443: my $getpropath; 12444: if ($file =~ /^userfiles\//) { 12445: $getpropath = 1; 12446: } 12447: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath); 12448: if (($error eq 'empty') || ($error eq 'no_such_dir')) { 12449: return (); 12450: } else { 12451: if (ref($listref) eq 'ARRAY') { 12452: my @stats = split('&',$listref->[0]); 12453: shift(@stats); #filename is first 12454: return @stats; 12455: } 12456: } 12457: return (); 12458: } 12459: 12460: # --------------------------------------------------------- recursedirs 12461: # Recursive function to traverse either a specific user's Authoring Space 12462: # or corresponding Published Resource Space, and populate the hash ref: 12463: # $dirhashref with URLs of all directories, and if $filehashref hash 12464: # ref arg is provided, the URLs of any files, excluding versioned, .meta, 12465: # or .rights files in resource space, and .meta, .save, .log, .bak and 12466: # .rights files in Authoring Space. 12467: # 12468: # Inputs: 12469: # 12470: # $is_home - true if current server is home server for user's space 12471: # $recurse - if true will also traverse subdirectories recursively 12472: # $include - reference to hash containing allowed file extensions. If provided, 12473: # files which do not have a matching extension will be ignored. 12474: # $exclude - reference to hash containing excluded file extensions. If provided, 12475: # files which have a matching extension will be ignored. 12476: # $nonemptydir - if true, will only populate $fileshashref hash entry for a particular 12477: # directory with first file found (with acceptable extension). 12478: # $addtopdir - if true, set $dirhashref->{'/'} = 1 12479: # $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname 12480: # $relpath - Current path (relative to top level). 12481: # $dirhashref - reference to hash to populate with URLs of directories (Required) 12482: # $filehashref - reference to hash to populate with URLs of files (Optional) 12483: # 12484: # Returns: nothing 12485: # 12486: # Side Effects: populates $dirhashref, and $filehashref (if provided). 12487: # 12488: # Currently used by interface/londocs.pm to create linked select boxes for 12489: # directory and filename to import a Course "Author" resource into a course, and 12490: # also to create linked select boxes for Authoring Space and Directory to choose 12491: # save location for creation of a new "standard" problem from the Course Editor. 12492: # 12493: 12494: sub recursedirs { 12495: my ($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$relpath,$dirhashref,$filehashref) = @_; 12496: return unless (ref($dirhashref) eq 'HASH'); 12497: my $docroot = $perlvar{'lonDocRoot'}; 12498: my $currpath = $docroot.$toppath; 12499: if ($relpath ne '') { 12500: $currpath .= "/$relpath"; 12501: } 12502: my ($savefile,$checkinc,$checkexc); 12503: if (ref($filehashref)) { 12504: $savefile = 1; 12505: } 12506: if (ref($include) eq 'HASH') { 12507: $checkinc = 1; 12508: } 12509: if (ref($exclude) eq 'HASH') { 12510: $checkexc = 1; 12511: } 12512: if ($is_home) { 12513: if ((-e $currpath) && (opendir(my $dirh,$currpath))) { 12514: my $filecount = 0; 12515: foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) { 12516: next if ($item eq ''); 12517: if (-d "$currpath/$item") { 12518: my $newpath; 12519: if ($relpath ne '') { 12520: $newpath = "$relpath/$item"; 12521: } else { 12522: $newpath = $item; 12523: } 12524: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; 12525: if ($recurse) { 12526: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref); 12527: } 12528: } elsif (($savefile) || ($relpath eq '')) { 12529: next if ($nonemptydir && $filecount); 12530: if ($checkinc || $checkexc) { 12531: my ($extension) = ($item =~ /\.(\w+)$/); 12532: if ($checkinc) { 12533: next unless ($extension && $include->{$extension}); 12534: } 12535: if ($checkexc) { 12536: next if ($extension && $exclude->{$extension}); 12537: } 12538: } 12539: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) { 12540: $dirhashref->{'/'} = 1; 12541: } 12542: if ($savefile) { 12543: if ($relpath eq '') { 12544: $filehashref->{'/'}{$item} = 1; 12545: } else { 12546: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; 12547: } 12548: } 12549: $filecount ++; 12550: } 12551: } 12552: closedir($dirh); 12553: } 12554: } else { 12555: my ($dirlistref,$listerror) = 12556: &dirlist($toppath.$relpath); 12557: my @dir_lines; 12558: my $dirptr=16384; 12559: if (ref($dirlistref) eq 'ARRAY') { 12560: my $filecount = 0; 12561: foreach my $dir_line (sort 12562: { 12563: my ($afile)=split('&',$a,2); 12564: my ($bfile)=split('&',$b,2); 12565: return (lc($afile) cmp lc($bfile)); 12566: } (@{$dirlistref})) { 12567: my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) = 12568: split(/\&/,$dir_line,16); 12569: $item =~ s/\s+$//; 12570: next if (($item =~ /^\.\.?$/) || ($obs)); 12571: if ($dirptr&$testdir) { 12572: my $newpath; 12573: if ($relpath) { 12574: $newpath = "$relpath/$item"; 12575: } else { 12576: $newpath = $item; 12577: } 12578: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; 12579: if ($recurse) { 12580: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref); 12581: } 12582: } elsif (($savefile) || ($relpath eq '')) { 12583: next if ($nonemptydir && $filecount); 12584: if ($checkinc || $checkexc) { 12585: my $extension; 12586: if ($checkinc) { 12587: next unless ($extension && $include->{$extension}); 12588: } 12589: if ($checkexc) { 12590: next if ($extension && $exclude->{$extension}); 12591: } 12592: } 12593: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) { 12594: $dirhashref->{'/'} = 1; 12595: } 12596: if ($savefile) { 12597: if ($relpath eq '') { 12598: $filehashref->{'/'}{$item} = 1; 12599: } else { 12600: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; 12601: } 12602: } 12603: $filecount ++; 12604: } 12605: } 12606: } 12607: } 12608: if ($addtopdir) { 12609: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) { 12610: $dirhashref->{'/'} = 1; 12611: } 12612: } 12613: return; 12614: } 12615: 12616: sub priv_exclude { 12617: return { 12618: meta => 1, 12619: save => 1, 12620: log => 1, 12621: bak => 1, 12622: rights => 1, 12623: DS_Store => 1, 12624: }; 12625: } 12626: 12627: # -------------------------------------------------------- Value of a Condition 12628: 12629: # gets the value of a specific preevaluated condition 12630: # stored in the string $env{user.state.<cid>} 12631: # or looks up a condition reference in the bighash and if if hasn't 12632: # already been evaluated recurses into docondval to get the value of 12633: # the condition, then memoizing it to 12634: # $env{user.state.<cid>.<condition>} 12635: sub directcondval { 12636: my $number=shift; 12637: if (!defined($env{'user.state.'.$env{'request.course.id'}})) { 12638: &Apache::lonuserstate::evalstate(); 12639: } 12640: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) { 12641: return $env{'user.state.'.$env{'request.course.id'}.".$number"}; 12642: } elsif ($number =~ /^_/) { 12643: my $sub_condition; 12644: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 12645: &GDBM_READER(),0640)) { 12646: $sub_condition=$bighash{'conditions'.$number}; 12647: untie(%bighash); 12648: } 12649: my $value = &docondval($sub_condition); 12650: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value}); 12651: return $value; 12652: } 12653: if ($env{'user.state.'.$env{'request.course.id'}}) { 12654: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1); 12655: } else { 12656: return 2; 12657: } 12658: } 12659: 12660: # get the collection of conditions for this resource 12661: sub condval { 12662: my $condidx=shift; 12663: my $allpathcond=''; 12664: foreach my $cond (split(/\|/,$condidx)) { 12665: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) { 12666: $allpathcond.= 12667: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|'; 12668: } 12669: } 12670: $allpathcond=~s/\|$//; 12671: return &docondval($allpathcond); 12672: } 12673: 12674: #evaluates an expression of conditions 12675: sub docondval { 12676: my ($allpathcond) = @_; 12677: my $result=0; 12678: if ($env{'request.course.id'} 12679: && defined($allpathcond)) { 12680: my $operand='|'; 12681: my @stack; 12682: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|$|$|\&|\|)/g) { 12683: if ($chunk eq '(') { 12684: push @stack,($operand,$result); 12685: } elsif ($chunk eq ')') { 12686: my $before=pop @stack; 12687: if (pop @stack eq '&') { 12688: $result=$result>$before?$before:$result; 12689: } else { 12690: $result=$result>$before?$result:$before; 12691: } 12692: } elsif (($chunk eq '&') || ($chunk eq '|')) { 12693: $operand=$chunk; 12694: } else { 12695: my $new=directcondval($chunk); 12696: if ($operand eq '&') { 12697: $result=$result>$new?$new:$result; 12698: } else { 12699: $result=$result>$new?$result:$new; 12700: } 12701: } 12702: } 12703: } 12704: return $result; 12705: } 12706: 12707: # ---------------------------------------------------- Devalidate courseresdata 12708: 12709: sub devalidatecourseresdata { 12710: my ($coursenum,$coursedomain)=@_; 12711: my $hashid=$coursenum.':'.$coursedomain; 12712: &devalidate_cache_new('courseres',$hashid); 12713: } 12714: 12715: 12716: # --------------------------------------------------- Course Resourcedata Query 12717: # 12718: # Parameters: 12719: # $coursenum - Number of the course. 12720: # $coursedomain - Domain at which the course was created. 12721: # Returns: 12722: # A hash of the course parameters along (I think) with timestamps 12723: # and version info. 12724: 12725: sub get_courseresdata { 12726: my ($coursenum,$coursedomain)=@_; 12727: my $coursehom=&homeserver($coursenum,$coursedomain); 12728: my $hashid=$coursenum.':'.$coursedomain; 12729: my ($result,$cached)=&is_cached_new('courseres',$hashid); 12730: my %dumpreply; 12731: unless (defined($cached)) { 12732: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum); 12733: $result=\%dumpreply; 12734: my ($tmp) = keys(%dumpreply); 12735: if ($tmp !~ /^(con_lost|error|no_such_host)/i) { 12736: &do_cache_new('courseres',$hashid,$result,600); 12737: } elsif ($tmp =~ /^(con_lost|no_such_host)/) { 12738: return $tmp; 12739: } elsif ($tmp =~ /^(error)/) { 12740: $result=undef; 12741: &do_cache_new('courseres',$hashid,$result,600); 12742: } 12743: } 12744: return $result; 12745: } 12746: 12747: sub devalidateuserresdata { 12748: my ($uname,$udom)=@_; 12749: my $hashid="$udom:$uname"; 12750: &devalidate_cache_new('userres',$hashid); 12751: } 12752: 12753: sub get_userresdata { 12754: my ($uname,$udom)=@_; 12755: #most student don\'t have any data set, check if there is some data 12756: if (&EXT_cache_status($udom,$uname)) { return undef; } 12757: 12758: my $hashid="$udom:$uname"; 12759: my ($result,$cached)=&is_cached_new('userres',$hashid); 12760: if (!defined($cached)) { 12761: my %resourcedata=&dump('resourcedata',$udom,$uname); 12762: $result=\%resourcedata; 12763: &do_cache_new('userres',$hashid,$result,600); 12764: } 12765: my ($tmp)=keys(%$result); 12766: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) { 12767: return $result; 12768: } 12769: #error 2 occurs when the .db doesn't exist 12770: if ($tmp!~/error: 2 /) { 12771: if ((!defined($cached)) || ($tmp ne 'con_lost')) { 12772: &logthis("WARNING:". 12773: " Trying to get resource data for ". 12774: $uname." at ".$udom.": ". 12775: $tmp.""); 12776: } 12777: } elsif ($tmp=~/error: 2 /) { 12778: #&EXT_cache_set($udom,$uname); 12779: &do_cache_new('userres',$hashid,undef,600); 12780: undef($tmp); # not really an error so don't send it back 12781: } 12782: return $tmp; 12783: } 12784: #----------------------------------------------- resdata - return resource data 12785: # Purpose: 12786: # Return resource data for either users or for a course. 12787: # Parameters: 12788: # $name - Course/user name. 12789: # $domain - Name of the domain the user/course is registered on. 12790: # $type - Type of thing $name is (must be 'course' or 'user') 12791: # $mapp - decluttered URL of enclosing map 12792: # $recursed - Ref to scalar -- set to 1, if nested maps have been recursed. 12793: # $recurseup - Ref to array of map URLs, starting with map containing 12794: # $mapp up through hierarchy of nested maps to top level map. 12795: # $courseid - CourseID (first part of param identifier). 12796: # $modifier - Middle part of param identifier. 12797: # $what - Last part of param identifier. 12798: # @which - Array of names of resources desired. 12799: # Returns: 12800: # The value of the first reasource in @which that is found in the 12801: # resource hash. 12802: # Exceptional Conditions: 12803: # If the $type passed in is not valid (not the string 'course' or 12804: # 'user', an undefined reference is returned. 12805: # If none of the resources are found, an undef is returned 12806: sub resdata { 12807: my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid, 12808: $modifier,$what,@which)=@_; 12809: my $result; 12810: if ($type eq 'course') { 12811: $result=&get_courseresdata($name,$domain); 12812: } elsif ($type eq 'user') { 12813: $result=&get_userresdata($name,$domain); 12814: } 12815: if (!ref($result)) { return $result; } 12816: foreach my $item (@which) { 12817: if ($item->[1] eq 'course') { 12818: if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) { 12819: unless ($$recursed) { 12820: @{$recurseup} = &get_map_hierarchy($mapp,$courseid); 12821: $$recursed = 1; 12822: } 12823: foreach my $item (@${recurseup}) { 12824: my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what; 12825: last if (defined($result->{$norecursechk})); 12826: my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what; 12827: if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; } 12828: } 12829: } 12830: } 12831: if (defined($result->{$item->[0]})) { 12832: return [$result->{$item->[0]},$item->[1]]; 12833: } 12834: } 12835: return undef; 12836: } 12837: 12838: sub get_domain_lti { 12839: my ($cdom,$context) = @_; 12840: my ($name,$cachename,%lti); 12841: if ($context eq 'consumer') { 12842: $name = 'ltitools'; 12843: } elsif ($context eq 'provider') { 12844: $name = 'lti'; 12845: } elsif ($context eq 'linkprot') { 12846: $name = 'ltisec'; 12847: } else { 12848: return %lti; 12849: } 12850: if ($context eq 'linkprot') { 12851: $cachename = $context; 12852: } else { 12853: $cachename = $name; 12854: } 12855: my ($result,$cached)=&is_cached_new($cachename,$cdom); 12856: if (defined($cached)) { 12857: if (ref($result) eq 'HASH') { 12858: %lti = %{$result}; 12859: } 12860: } else { 12861: my %domconfig = &get_dom('configuration',[$name],$cdom); 12862: if (ref($domconfig{$name}) eq 'HASH') { 12863: if ($context eq 'linkprot') { 12864: if (ref($domconfig{$name}{'linkprot'}) eq 'HASH') { 12865: %lti = %{$domconfig{$name}{'linkprot'}}; 12866: } 12867: } else { 12868: %lti = %{$domconfig{$name}}; 12869: } 12870: } 12871: my $cachetime = 24*60*60; 12872: &do_cache_new($cachename,$cdom,\%lti,$cachetime); 12873: } 12874: return %lti; 12875: } 12876: 12877: sub get_course_lti { 12878: my ($cnum,$cdom,$context) = @_; 12879: my ($name,$cachename,%lti); 12880: if ($context eq 'consumer') { 12881: $name = 'ltitools'; 12882: $cachename = 'courseltitools'; 12883: } elsif ($context eq 'provider') { 12884: $name = 'lti'; 12885: $cachename = 'courselti'; 12886: } else { 12887: return %lti; 12888: } 12889: my $hashid=$cdom.'_'.$cnum; 12890: my ($result,$cached)=&is_cached_new($cachename,$hashid); 12891: if (defined($cached)) { 12892: if (ref($result) eq 'HASH') { 12893: %lti = %{$result}; 12894: } 12895: } else { 12896: %lti = &dump($name,$cdom,$cnum,undef,undef,undef,1); 12897: my $cachetime = 24*60*60; 12898: &do_cache_new($cachename,$hashid,\%lti,$cachetime); 12899: } 12900: return %lti; 12901: } 12902: 12903: sub courselti_itemid { 12904: my ($cnum,$cdom,$url,$method,$params,$context) = @_; 12905: my ($chome,$itemid); 12906: $chome = &homeserver($cnum,$cdom); 12907: return if ($chome eq 'no_host'); 12908: if (ref($params) eq 'HASH') { 12909: my $rep; 12910: if (grep { $_ eq $chome } current_machine_ids()) { 12911: $rep = LONCAPA::Lond::crslti_itemid($cdom,$cnum,$url,$method,$params,$perlvar{'lonVersion'}); 12912: } else { 12913: my $escurl = &escape($url); 12914: my $escmethod = &escape($method); 12915: my $items = &freeze_escape($params); 12916: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$chome); 12917: } 12918: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 12919: ($rep eq 'unknown_cmd')) { 12920: $itemid = $rep; 12921: } 12922: } 12923: return $itemid; 12924: } 12925: 12926: sub domainlti_itemid { 12927: my ($cdom,$url,$method,$params,$context) = @_; 12928: my ($primary_id,$itemid); 12929: $primary_id = &domain($cdom,'primary'); 12930: return if ($primary_id eq ''); 12931: if (ref($params) eq 'HASH') { 12932: my $rep; 12933: if (grep { $_ eq $primary_id } current_machine_ids()) { 12934: $rep = LONCAPA::Lond::domlti_itemid($cdom,$context,$url,$method,$params,$perlvar{'lonVersion'}); 12935: } else { 12936: my $cnum = ''; 12937: my $escurl = &escape($url); 12938: my $escmethod = &escape($method); 12939: my $items = &freeze_escape($params); 12940: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$primary_id); 12941: } 12942: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 12943: ($rep eq 'unknown_cmd')) { 12944: $itemid = $rep; 12945: } 12946: } 12947: return $itemid; 12948: } 12949: 12950: sub get_ltitools_id { 12951: my ($context,$cdom,$cnum,$title) = @_; 12952: my ($lockhash,$tries,$gotlock,$id,$error); 12953: 12954: # get lock on ltitools db 12955: $lockhash = { 12956: lock => $env{'user.name'}. 12957: ':'.$env{'user.domain'}, 12958: }; 12959: $tries = 0; 12960: if ($context eq 'domain') { 12961: $gotlock = &newput_dom('ltitools',$lockhash,$cdom); 12962: } else { 12963: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum); 12964: } 12965: while (($gotlock ne 'ok') && ($tries<10)) { 12966: $tries ++; 12967: sleep (0.1); 12968: if ($context eq 'domain') { 12969: $gotlock = &newput_dom('ltitools',$lockhash,$cdom); 12970: } else { 12971: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum); 12972: } 12973: } 12974: if ($gotlock eq 'ok') { 12975: my %currids; 12976: if ($context eq 'domain') { 12977: %currids = &dump_dom('ltitools',$cdom); 12978: } else { 12979: %currids = &dump('ltitools',$cdom,$cnum); 12980: } 12981: if ($currids{'lock'}) { 12982: delete($currids{'lock'}); 12983: if (keys(%currids)) { 12984: my @curr = sort { $a <=> $b } keys(%currids); 12985: if ($curr[-1] =~ /^\d+$/) { 12986: $id = 1 + $curr[-1]; 12987: } 12988: } else { 12989: $id = 1; 12990: } 12991: if ($id) { 12992: if ($context eq 'domain') { 12993: unless (&newput_dom('ltitools',{ $id => $title },$cdom) eq 'ok') { 12994: $error = 'nostore'; 12995: } 12996: } else { 12997: unless (&newput('ltitools',{ $id => $title },$cdom,$cnum) eq 'ok') { 12998: $error = 'nostore'; 12999: } 13000: } 13001: } else { 13002: $error = 'nonumber'; 13003: } 13004: } 13005: my $dellockoutcome; 13006: if ($context eq 'domain') { 13007: $dellockoutcome = &del_dom('ltitools',['lock'],$cdom); 13008: } else { 13009: $dellockoutcome = &del('ltitools',['lock'],$cdom,$cnum); 13010: } 13011: } else { 13012: $error = 'nolock'; 13013: } 13014: return ($id,$error); 13015: } 13016: 13017: sub count_supptools { 13018: my ($cnum,$cdom,$ignorecache,$reload)=@_; 13019: my $hashid=$cnum.':'.$cdom; 13020: my ($numexttools,$cached); 13021: unless ($ignorecache) { 13022: ($numexttools,$cached) = &is_cached_new('supptools',$hashid); 13023: } 13024: unless (defined($cached)) { 13025: my $chome=&homeserver($cnum,$cdom); 13026: $numexttools = 0; 13027: unless ($chome eq 'no_host') { 13028: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$reload); 13029: if (ref($supplemental) eq 'HASH') { 13030: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) { 13031: foreach my $key (keys(%{$supplemental->{'ids'}})) { 13032: if ($key =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) { 13033: $numexttools ++; 13034: } 13035: } 13036: } 13037: } 13038: } 13039: &do_cache_new('supptools',$hashid,$numexttools,600); 13040: } 13041: return $numexttools; 13042: } 13043: 13044: sub has_unhidden_suppfiles { 13045: my ($cnum,$cdom,$ignorecache,$possdel)=@_; 13046: my $hashid=$cnum.':'.$cdom; 13047: my ($showsupp,$cached); 13048: unless ($ignorecache) { 13049: ($showsupp,$cached) = &is_cached_new('showsupp',$hashid); 13050: } 13051: unless (defined($cached)) { 13052: my $chome=&homeserver($cnum,$cdom); 13053: unless ($chome eq 'no_host') { 13054: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$ignorecache,$possdel); 13055: if (ref($supplemental) eq 'HASH') { 13056: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) { 13057: foreach my $key (keys(%{$supplemental->{'ids'}})) { 13058: next if ($key =~ /\.sequence$/); 13059: if (ref($supplemental->{'ids'}->{$key}) eq 'ARRAY') { 13060: foreach my $id (@{$supplemental->{'ids'}->{$key}}) { 13061: unless ($supplemental->{'hidden'}->{$id}) { 13062: $showsupp = 1; 13063: last; 13064: } 13065: } 13066: } 13067: last if ($showsupp); 13068: } 13069: } 13070: } 13071: } 13072: &do_cache_new('showsupp',$hashid,$showsupp,600); 13073: } 13074: return $showsupp; 13075: } 13076: 13077: # 13078: # EXT resource caching routines 13079: # 13080: 13081: { 13082: # Cache (5 seconds) of map hierarchy for speedup of navmaps display 13083: # 13084: # The course for which we cache 13085: my $cachedmapkey=''; 13086: # The cached recursive maps for this course 13087: my %cachedmaps=(); 13088: # When this was last done 13089: my $cachedmaptime=''; 13090: 13091: sub clear_EXT_cache_status { 13092: &delenv('cache.EXT.'); 13093: } 13094: 13095: sub EXT_cache_status { 13096: my ($target_domain,$target_user) = @_; 13097: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; 13098: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) { 13099: # We know already the user has no data 13100: return 1; 13101: } else { 13102: return 0; 13103: } 13104: } 13105: 13106: sub EXT_cache_set { 13107: my ($target_domain,$target_user) = @_; 13108: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; 13109: #&appenv({$cachename => time}); 13110: } 13111: 13112: # --------------------------------------------------------- Value of a Variable 13113: sub EXT { 13114: 13115: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid,$recurseupref)=@_; 13116: unless ($varname) { return ''; } 13117: #get real user name/domain, courseid and symb 13118: my $courseid; 13119: my $publicuser; 13120: if ($symbparm) { 13121: $symbparm=&get_symb_from_alias($symbparm); 13122: } 13123: if (!($uname && $udom)) { 13124: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm); 13125: if (!$symbparm) { $symbparm=$cursymb; } 13126: } else { 13127: $courseid=$env{'request.course.id'}; 13128: } 13129: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname); 13130: my $rest; 13131: if (defined($therest[0])) { 13132: $rest=join('.',@therest); 13133: } else { 13134: $rest=''; 13135: } 13136: 13137: my $qualifierrest=$qualifier; 13138: if ($rest) { $qualifierrest.='.'.$rest; } 13139: my $spacequalifierrest=$space; 13140: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; } 13141: if ($realm eq 'user') { 13142: # --------------------------------------------------------------- user.resource 13143: if ($space eq 'resource') { 13144: if ( (defined($Apache::lonhomework::parsing_a_problem) 13145: || defined($Apache::lonhomework::parsing_a_task)) 13146: && 13147: ($symbparm eq &symbread()) ) { 13148: # if we are in the middle of processing the resource the 13149: # get the value we are planning on committing 13150: if (defined($Apache::lonhomework::results{$qualifierrest})) { 13151: return $Apache::lonhomework::results{$qualifierrest}; 13152: } else { 13153: return $Apache::lonhomework::history{$qualifierrest}; 13154: } 13155: } else { 13156: my %restored; 13157: if ($publicuser || $env{'request.state'} eq 'construct') { 13158: %restored=&tmprestore($symbparm,$courseid,$udom,$uname); 13159: } else { 13160: %restored=&restore($symbparm,$courseid,$udom,$uname); 13161: } 13162: return $restored{$qualifierrest}; 13163: } 13164: # ----------------------------------------------------------------- user.access 13165: } elsif ($space eq 'access') { 13166: # FIXME - not supporting calls for a specific user 13167: return &allowed($qualifier,$rest); 13168: # ------------------------------------------ user.preferences, user.environment 13169: } elsif (($space eq 'preferences') || ($space eq 'environment')) { 13170: if (($uname eq $env{'user.name'}) && 13171: ($udom eq $env{'user.domain'})) { 13172: return $env{join('.',('environment',$qualifierrest))}; 13173: } else { 13174: my %returnhash; 13175: if (!$publicuser) { 13176: %returnhash=&userenvironment($udom,$uname, 13177: $qualifierrest); 13178: } 13179: return $returnhash{$qualifierrest}; 13180: } 13181: # ----------------------------------------------------------------- user.course 13182: } elsif ($space eq 'course') { 13183: # FIXME - not supporting calls for a specific user 13184: return $env{join('.',('request.course',$qualifier))}; 13185: # ------------------------------------------------------------------- user.role 13186: } elsif ($space eq 'role') { 13187: # FIXME - not supporting calls for a specific user 13188: my ($role,$where)=split(/\./,$env{'request.role'}); 13189: if ($qualifier eq 'value') { 13190: return $role; 13191: } elsif ($qualifier eq 'extent') { 13192: return $where; 13193: } 13194: # ----------------------------------------------------------------- user.domain 13195: } elsif ($space eq 'domain') { 13196: return $udom; 13197: # ------------------------------------------------------------------- user.name 13198: } elsif ($space eq 'name') { 13199: return $uname; 13200: # ---------------------------------------------------- Any other user namespace 13201: } else { 13202: my %reply; 13203: if (!$publicuser) { 13204: %reply=&get($space,[$qualifierrest],$udom,$uname); 13205: } 13206: return $reply{$qualifierrest}; 13207: } 13208: } elsif ($realm eq 'query') { 13209: # ---------------------------------------------- pull stuff out of query string 13210: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 13211: [$spacequalifierrest]); 13212: return $env{'form.'.$spacequalifierrest}; 13213: } elsif ($realm eq 'request') { 13214: # ------------------------------------------------------------- request.browser 13215: if ($space eq 'browser') { 13216: return $env{'browser.'.$qualifier}; 13217: # ------------------------------------------------------------ request.filename 13218: } else { 13219: return $env{'request.'.$spacequalifierrest}; 13220: } 13221: } elsif ($realm eq 'course') { 13222: # ---------------------------------------------------------- course.description 13223: return $env{'course.'.$courseid.'.'.$spacequalifierrest}; 13224: } elsif ($realm eq 'resource') { 13225: 13226: if (defined($courseid) && $courseid eq $env{'request.course.id'}) { 13227: if (!$symbparm) { $symbparm=&symbread(); } 13228: } 13229: 13230: if ($qualifier eq '') { 13231: if ($space eq 'title') { 13232: if (!$symbparm) { $symbparm = $env{'request.filename'}; } 13233: return &gettitle($symbparm); 13234: } 13235: 13236: if ($space eq 'map') { 13237: my ($map) = &decode_symb($symbparm); 13238: return &symbread($map); 13239: } 13240: if ($space eq 'maptitle') { 13241: my ($map) = &decode_symb($symbparm); 13242: return &gettitle($map); 13243: } 13244: if ($space eq 'filename') { 13245: if ($symbparm) { 13246: return &clutter((&decode_symb($symbparm))[2]); 13247: } 13248: return &hreflocation('',$env{'request.filename'}); 13249: } 13250: 13251: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) { 13252: if ($space eq 'visibleparts') { 13253: my $navmap = Apache::lonnavmaps::navmap->new(); 13254: my $item; 13255: if (ref($navmap)) { 13256: my $res = $navmap->getBySymb($symbparm); 13257: my $parts = $res->parts(); 13258: if (ref($parts) eq 'ARRAY') { 13259: $item = join(',',@{$parts}); 13260: } 13261: undef($navmap); 13262: } 13263: return $item; 13264: } 13265: } 13266: } 13267: 13268: my ($section, $group, @groups, @recurseup, $recursed); 13269: if (ref($recurseupref) eq 'ARRAY') { 13270: @recurseup = @{$recurseupref}; 13271: $recursed = 1; 13272: } 13273: my ($courselevelm,$courseleveli,$courselevel,$mapp); 13274: if (($courseid eq '') && ($cid)) { 13275: $courseid = $cid; 13276: } 13277: if (($symbparm && $courseid) && 13278: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) { 13279: 13280: #print ' '.$space.' - '.$qualifier.' - '.$spacequalifierrest; 13281: 13282: # ----------------------------------------------------- Cascading lookup scheme 13283: my $symbp=$symbparm; 13284: $mapp=&deversion((&decode_symb($symbp))[0]); 13285: my $symbparm=$symbp.'.'.$spacequalifierrest; 13286: my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest; 13287: my $mapparm=$mapp.'___(all).'.$spacequalifierrest; 13288: if (($env{'user.name'} eq $uname) && 13289: ($env{'user.domain'} eq $udom)) { 13290: $section=$env{'request.course.sec'}; 13291: @groups = split(/:/,$env{'request.course.groups'}); 13292: @groups=&sort_course_groups($courseid,@groups); 13293: } else { 13294: if (! defined($usection)) { 13295: $section=&getsection($udom,$uname,$courseid); 13296: } else { 13297: $section = $usection; 13298: } 13299: @groups = &get_users_groups($udom,$uname,$courseid); 13300: } 13301: 13302: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest; 13303: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm; 13304: my $secleveli=$courseid.'.['.$section.'].'.$recurseparm; 13305: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm; 13306: 13307: $courselevel=$courseid.'.'.$spacequalifierrest; 13308: my $courselevelr=$courseid.'.'.$symbparm; 13309: $courseleveli=$courseid.'.'.$recurseparm; 13310: $courselevelm=$courseid.'.'.$mapparm; 13311: 13312: # ----------------------------------------------------------- first, check user 13313: 13314: my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed, 13315: \@recurseup,$courseid,'.',$spacequalifierrest, 13316: ([$courselevelr,'resource'], 13317: [$courselevelm,'map' ], 13318: [$courseleveli,'map' ], 13319: [$courselevel, 'course' ])); 13320: if (defined($userreply)) { return &get_reply($userreply); } 13321: 13322: # ------------------------------------------------ second, check some of course 13323: my $coursereply; 13324: if (@groups > 0) { 13325: $coursereply = &check_group_parms($courseid,\@groups,$symbparm, 13326: $recurseparm,$mapparm,$spacequalifierrest, 13327: $mapp,\$recursed,\@recurseup); 13328: if (defined($coursereply)) { return &get_reply($coursereply); } 13329: } 13330: 13331: $coursereply=&resdata($env{'course.'.$courseid.'.num'}, 13332: $env{'course.'.$courseid.'.domain'}, 13333: 'course',$mapp,\$recursed,\@recurseup, 13334: $courseid,'.['.$section.'].',$spacequalifierrest, 13335: ([$seclevelr, 'resource'], 13336: [$seclevelm, 'map' ], 13337: [$secleveli, 'map' ], 13338: [$seclevel, 'course' ], 13339: [$courselevelr,'resource'])); 13340: if (defined($coursereply)) { return &get_reply($coursereply); } 13341: 13342: # ------------------------------------------------------ third, check map parms 13343: my %parmhash=(); 13344: my $thisparm=''; 13345: if (tie(%parmhash,'GDBM_File', 13346: $env{'request.course.fn'}.'_parms.db', 13347: &GDBM_READER(),0640)) { 13348: $thisparm=$parmhash{$symbparm}; 13349: untie(%parmhash); 13350: } 13351: if ($thisparm) { return &get_reply([$thisparm,'resource']); } 13352: } 13353: # ------------------------------------------ fourth, look in resource metadata 13354: 13355: my $what = $spacequalifierrest; 13356: $what=~s/\./\_/; 13357: my $filename; 13358: if (!$symbparm) { $symbparm=&symbread(); } 13359: if ($symbparm) { 13360: $filename=(&decode_symb($symbparm))[2]; 13361: } else { 13362: $filename=$env{'request.filename'}; 13363: } 13364: my $toolsymb; 13365: if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) { 13366: $toolsymb = $symbparm; 13367: } 13368: my $metadata=&metadata($filename,$what,$toolsymb); 13369: if (defined($metadata)) { return &get_reply([$metadata,'resource']); } 13370: $metadata=&metadata($filename,'parameter_'.$what,$toolsymb); 13371: if (defined($metadata)) { return &get_reply([$metadata,'resource']); } 13372: 13373: # ----------------------------------------------- fifth, look in rest of course 13374: if ($symbparm && defined($courseid) && 13375: $courseid eq $env{'request.course.id'}) { 13376: my $coursereply=&resdata($env{'course.'.$courseid.'.num'}, 13377: $env{'course.'.$courseid.'.domain'}, 13378: 'course',$mapp,\$recursed,\@recurseup, 13379: $courseid,'.',$spacequalifierrest, 13380: ([$courselevelm,'map' ], 13381: [$courseleveli,'map' ], 13382: [$courselevel, 'course'])); 13383: if (defined($coursereply)) { return &get_reply($coursereply); } 13384: } 13385: # ------------------------------------------------------------------ Cascade up 13386: unless ($space eq '0') { 13387: my @parts=split(/_/,$space); 13388: my $id=pop(@parts); 13389: my $part=join('_',@parts); 13390: if ($part eq '') { $part='0'; } 13391: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest, 13392: $symbparm,$udom,$uname,$section,1); 13393: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); } 13394: } 13395: if ($recurse) { return undef; } 13396: my $pack_def=&packages_tab_default($filename,$varname,$toolsymb); 13397: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); } 13398: # ---------------------------------------------------- Any other user namespace 13399: } elsif ($realm eq 'environment') { 13400: # ----------------------------------------------------------------- environment 13401: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) { 13402: return $env{'environment.'.$spacequalifierrest}; 13403: } else { 13404: if ($uname eq 'anonymous' && $udom eq '') { 13405: return ''; 13406: } 13407: my %returnhash=&userenvironment($udom,$uname, 13408: $spacequalifierrest); 13409: return $returnhash{$spacequalifierrest}; 13410: } 13411: } elsif ($realm eq 'system') { 13412: # ----------------------------------------------------------------- system.time 13413: if ($space eq 'time') { 13414: return time; 13415: } 13416: } elsif ($realm eq 'server') { 13417: # ----------------------------------------------------------------- system.time 13418: if ($space eq 'name') { 13419: return $ENV{'SERVER_NAME'}; 13420: } 13421: } elsif ($realm eq 'client') { 13422: if ($space eq 'remote_addr') { 13423: return &get_requestor_ip(); 13424: } 13425: } 13426: return ''; 13427: } 13428: 13429: sub get_reply { 13430: my ($reply_value) = @_; 13431: if (ref($reply_value) eq 'ARRAY') { 13432: if (wantarray) { 13433: return @$reply_value; 13434: } 13435: return $reply_value->[0]; 13436: } else { 13437: return $reply_value; 13438: } 13439: } 13440: 13441: sub check_group_parms { 13442: my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp, 13443: $recursed,$recurseupref) = @_; 13444: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'], 13445: [$what,'course']); 13446: my $coursereply; 13447: foreach my $group (@{$groups}) { 13448: my @groupitems = (); 13449: foreach my $level (@levels) { 13450: my $item = $courseid.'.['.$group.'].'.$level->[0]; 13451: push(@groupitems,[$item,$level->[1]]); 13452: } 13453: my $coursereply = &resdata($env{'course.'.$courseid.'.num'}, 13454: $env{'course.'.$courseid.'.domain'}, 13455: 'course',$mapp,$recursed,$recurseupref, 13456: $courseid,'.['.$group.'].',$what, 13457: @groupitems); 13458: last if (defined($coursereply)); 13459: } 13460: return $coursereply; 13461: } 13462: 13463: sub get_map_hierarchy { 13464: my ($mapname,$courseid) = @_; 13465: my @recurseup = (); 13466: if ($mapname) { 13467: if (($cachedmapkey eq $courseid) && 13468: (abs($cachedmaptime-time)<5)) { 13469: if (ref($cachedmaps{$mapname}) eq 'ARRAY') { 13470: return @{$cachedmaps{$mapname}}; 13471: } 13472: } 13473: my $navmap = Apache::lonnavmaps::navmap->new(); 13474: if (ref($navmap)) { 13475: @recurseup = $navmap->recurseup_maps($mapname); 13476: undef($navmap); 13477: $cachedmaps{$mapname} = \@recurseup; 13478: $cachedmaptime=time; 13479: $cachedmapkey=$courseid; 13480: } 13481: } 13482: return @recurseup; 13483: } 13484: 13485: } 13486: 13487: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort(). 13488: my ($courseid,@groups) = @_; 13489: @groups = sort(@groups); 13490: return @groups; 13491: } 13492: 13493: sub packages_tab_default { 13494: my ($uri,$varname,$toolsymb)=@_; 13495: my (undef,$part,$name)=split(/\./,$varname); 13496: 13497: my (@extension,@specifics,$do_default); 13498: foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) { 13499: my ($pack_type,$pack_part)=split(/_/,$package,2); 13500: if ($pack_type eq 'default') { 13501: $do_default=1; 13502: } elsif ($pack_type eq 'extension') { 13503: push(@extension,[$package,$pack_type,$pack_part]); 13504: } elsif ($pack_part eq $part || $pack_type eq 'part') { 13505: # only look at packages defaults for packages that this id is 13506: push(@specifics,[$package,$pack_type,$pack_part]); 13507: } 13508: } 13509: # first look for a package that matches the requested part id 13510: foreach my $package (@specifics) { 13511: my (undef,$pack_type,$pack_part)=@{$package}; 13512: next if ($pack_part ne $part); 13513: if (defined($packagetab{"$pack_type&$name&default"})) { 13514: return $packagetab{"$pack_type&$name&default"}; 13515: } 13516: } 13517: # look for any possible matching non extension_ package 13518: foreach my $package (@specifics) { 13519: my (undef,$pack_type,$pack_part)=@{$package}; 13520: if (defined($packagetab{"$pack_type&$name&default"})) { 13521: return $packagetab{"$pack_type&$name&default"}; 13522: } 13523: if ($pack_type eq 'part') { $pack_part='0'; } 13524: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) { 13525: return $packagetab{$pack_type."_".$pack_part."&$name&default"}; 13526: } 13527: } 13528: # look for any posible extension_ match 13529: foreach my $package (@extension) { 13530: my ($package,$pack_type)=@{$package}; 13531: if (defined($packagetab{"$pack_type&$name&default"})) { 13532: return $packagetab{"$pack_type&$name&default"}; 13533: } 13534: if (defined($packagetab{$package."&$name&default"})) { 13535: return $packagetab{$package."&$name&default"}; 13536: } 13537: } 13538: # look for a global default setting 13539: if ($do_default && defined($packagetab{"default&$name&default"})) { 13540: return $packagetab{"default&$name&default"}; 13541: } 13542: return undef; 13543: } 13544: 13545: sub add_prefix_and_part { 13546: my ($prefix,$part)=@_; 13547: my $keyroot; 13548: if (defined($prefix) && $prefix !~ /^__/) { 13549: # prefix that has a part already 13550: $keyroot=$prefix; 13551: } elsif (defined($prefix)) { 13552: # prefix that is missing a part 13553: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); } 13554: } else { 13555: # no prefix at all 13556: if (defined($part)) { $keyroot='_'.$part; } 13557: } 13558: return $keyroot; 13559: } 13560: 13561: # ---------------------------------------------------------------- Get metadata 13562: 13563: my %metaentry; 13564: my %importedpartids; 13565: my %importedrespids; 13566: sub metadata { 13567: my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_; 13568: $uri=&declutter($uri); 13569: # if it is a non metadata possible uri return quickly 13570: if (($uri eq '') || 13571: (($uri =~ m|^/*adm/|) && 13572: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) || 13573: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) { 13574: return undef; 13575: } 13576: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv}) 13577: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) { 13578: return undef; 13579: } 13580: my $filename=$uri; 13581: $uri=~s/\.meta$//; 13582: # 13583: # Is the metadata already cached? 13584: # Look at timestamp of caching 13585: # Everything is cached by the main uri, libraries are never directly cached 13586: # 13587: if (!defined($liburi)) { 13588: my ($result,$cached)=&is_cached_new('meta',$uri); 13589: if (defined($cached)) { return $result->{':'.$what}; } 13590: } 13591: 13592: # 13593: # If the uri is for an external tool the file from 13594: # which metadata should be retrieved depends on whether 13595: # the tool had been configured to be gradable (set in the Course 13596: # Editor or Resource Editor). 13597: # 13598: # If a valid symb has been included as the third arg in the call 13599: # to &metadata() that can be used to retrieve the value of 13600: # parameter_0_gradable set for the resource, and included in the 13601: # uploaded map containing the tool. The value is retrieved via 13602: # &EXT(), if a valid symb is available. Otherwise the value of 13603: # gradable in the exttool_$marker.db file for the tool instance 13604: # is retrieved via &get(). 13605: # 13606: # When lonuserstate::traceroute() calls lonnet::EXT() for 13607: # hiddenresource and encrypturl (during course initialization) 13608: # the map-level parameter for resource.0.gradable included in the 13609: # uploaded map containing the tool will not yet have been stored 13610: # in the user_course_parms.db file for the user's session, so in 13611: # this case fall back to retrieving gradable status from the 13612: # exttool_$marker.db file. 13613: # 13614: # In order to avoid an infinite loop, &metadata() will return 13615: # before a call to &EXT(), if the uri is for an external tool 13616: # and the $what for which metadata is being requested is 13617: # parameter_0_gradable or 0_gradable. 13618: # 13619: 13620: if ($uri =~ /ext\.tool$/) { 13621: if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) { 13622: return; 13623: } else { 13624: my ($checked,$use_passback); 13625: if ($toolsymb ne '') { 13626: (undef,undef,my $tooluri) = &decode_symb($toolsymb); 13627: if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) { 13628: $checked = 1; 13629: if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) { 13630: $use_passback = 1; 13631: } 13632: } 13633: } 13634: unless ($checked) { 13635: my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri); 13636: $marker=~s/\D//g; 13637: if ($marker) { 13638: my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum); 13639: $use_passback = $toolsettings{'gradable'}; 13640: } 13641: } 13642: if ($use_passback) { 13643: $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool'; 13644: } else { 13645: $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool'; 13646: } 13647: } 13648: } 13649: 13650: { 13651: # Imported parts would go here 13652: my @origfiletagids=(); 13653: my $importedparts=0; 13654: 13655: # Imported responseids would go here 13656: my $importedresponses=0; 13657: # 13658: # Is this a recursive call for a library? 13659: # 13660: # if (! exists($metacache{$uri})) { 13661: # $metacache{$uri}={}; 13662: # } 13663: my $cachetime = 60*60; 13664: if ($liburi) { 13665: $liburi=&declutter($liburi); 13666: $filename=$liburi; 13667: } else { 13668: &devalidate_cache_new('meta',$uri); 13669: undef(%metaentry); 13670: } 13671: my %metathesekeys=(); 13672: unless ($filename=~/\.meta$/) { $filename.='.meta'; } 13673: my $metastring; 13674: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) { 13675: my $which = &hreflocation('','/'.($liburi || $uri)); 13676: $metastring = 13677: &Apache::lonnet::ssi_body($which, 13678: ('grade_target' => 'meta')); 13679: $cachetime = 1; # only want this cached in the child not long term 13680: } elsif (($uri !~ m -^(editupload)/-) && 13681: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) { 13682: my $file=&filelocation('',&clutter($filename)); 13683: #push(@{$metaentry{$uri.'.file'}},$file); 13684: $metastring=&getfile($file); 13685: } 13686: my $parser=HTML::LCParser->new(\$metastring); 13687: my $token; 13688: undef %metathesekeys; 13689: while ($token=$parser->get_token) { 13690: if ($token->[0] eq 'S') { 13691: if (defined($token->[2]->{'package'})) { 13692: # 13693: # This is a package - get package info 13694: # 13695: my $package=$token->[2]->{'package'}; 13696: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'}); 13697: if (defined($token->[2]->{'id'})) { 13698: $keyroot.='_'.$token->[2]->{'id'}; 13699: } 13700: if ($metaentry{':packages'}) { 13701: $metaentry{':packages'}.=','.$package.$keyroot; 13702: } else { 13703: $metaentry{':packages'}=$package.$keyroot; 13704: } 13705: foreach my $pack_entry (keys(%packagetab)) { 13706: my $part=$keyroot; 13707: $part=~s/^\_//; 13708: if ($pack_entry=~/^\Q$package\E\&/ || 13709: $pack_entry=~/^\Q$package\E_0\&/) { 13710: my ($pack,$name,$subp)=split(/\&/,$pack_entry); 13711: # ignore package.tab specified default values 13712: # here &package_tab_default() will fetch those 13713: if ($subp eq 'default') { next; } 13714: my $value=$packagetab{$pack_entry}; 13715: my $unikey; 13716: if ($pack =~ /_0$/) { 13717: $unikey='parameter_0_'.$name; 13718: $part=0; 13719: } else { 13720: $unikey='parameter'.$keyroot.'_'.$name; 13721: } 13722: if ($subp eq 'display') { 13723: $value.=' [Part: '.$part.']'; 13724: } 13725: $metaentry{':'.$unikey.'.part'}=$part; 13726: $metathesekeys{$unikey}=1; 13727: unless (defined($metaentry{':'.$unikey.'.'.$subp})) { 13728: $metaentry{':'.$unikey.'.'.$subp}=$value; 13729: } 13730: if (defined($metaentry{':'.$unikey.'.default'})) { 13731: $metaentry{':'.$unikey}= 13732: $metaentry{':'.$unikey.'.default'}; 13733: } 13734: } 13735: } 13736: } else { 13737: # 13738: # This is not a package - some other kind of start tag 13739: # 13740: my $entry=$token->[1]; 13741: my $unikey=''; 13742: 13743: if ($entry eq 'import') { 13744: # 13745: # Importing a library here 13746: # 13747: my $location=$parser->get_text('/import'); 13748: my $dir=$filename; 13749: $dir=~s|[^/]*$||; 13750: $location=&filelocation($dir,$location); 13751: 13752: my $importid=$token->[2]->{'id'}; 13753: my $importmode=$token->[2]->{'importmode'}; 13754: # 13755: # Check metadata for imported file to 13756: # see if it contained response items 13757: # 13758: my ($origfile,@libfilekeys); 13759: my %currmetaentry = %metaentry; 13760: @libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef, 13761: $depthcount+1)); 13762: if (grep(/^responseorder$/,@libfilekeys)) { 13763: my $libresponseorder = &metadata($location,'responseorder',undef,undef, 13764: undef,$depthcount+1); 13765: if ($libresponseorder ne '') { 13766: if ($#origfiletagids<0) { 13767: undef(%importedrespids); 13768: undef(%importedpartids); 13769: } 13770: my @respids = split(/\s*,\s*/,$libresponseorder); 13771: if (@respids) { 13772: $importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids); 13773: } 13774: if ($importedrespids{$importid} ne '') { 13775: $importedresponses = 1; 13776: # We need to get the original file and the imported file to get the response order correct 13777: # Load and inspect original file 13778: if ($#origfiletagids<0) { 13779: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); 13780: $origfile=&getfile($origfilelocation); 13781: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 13782: } 13783: } 13784: } 13785: } 13786: # Do not overwrite contents of %metaentry hash for resource itself with 13787: # hash populated for imported library file 13788: %metaentry = %currmetaentry; 13789: undef(%currmetaentry); 13790: if ($importmode eq 'part') { 13791: # Import as part(s) 13792: $importedparts=1; 13793: # We need to get the original file and the imported file to get the part order correct 13794: # Good news: we do not need to worry about nested libraries, since parts cannot be nested 13795: # Load and inspect original file if we didn't do that already 13796: if ($#origfiletagids<0) { 13797: undef(%importedrespids); 13798: undef(%importedpartids); 13799: if ($origfile eq '') { 13800: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); 13801: $origfile=&getfile($origfilelocation); 13802: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 13803: } 13804: } 13805: my @impfilepartids; 13806: # If <partorder> tag is included in metadata for the imported file 13807: # get the parts in the imported file from that. 13808: if (grep(/^partorder$/,@libfilekeys)) { 13809: %currmetaentry = %metaentry; 13810: my $libpartorder = &metadata($location,'partorder',undef,undef,undef, 13811: $depthcount+1); 13812: %metaentry = %currmetaentry; 13813: undef(%currmetaentry); 13814: if ($libpartorder ne '') { 13815: @impfilepartids=split(/\s*,\s*/,$libpartorder); 13816: } 13817: } else { 13818: # If no <partorder> tag available, load and inspect imported file 13819: my $impfile=&getfile($location); 13820: @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 13821: } 13822: if ($#impfilepartids>=0) { 13823: # This problem had parts 13824: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids); 13825: } else { 13826: # Importing by turning a single problem into a problem part 13827: # It gets the import-tags ID as part-ID 13828: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'}); 13829: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'}; 13830: } 13831: } else { 13832: # Import as problem or as normal import 13833: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'}); 13834: unless ($importmode eq 'problem') { 13835: # Normal import 13836: if (defined($token->[2]->{'id'})) { 13837: $unikey.='_'.$token->[2]->{'id'}; 13838: } 13839: } 13840: # Check metadata for imported file to 13841: # see if it contained parts 13842: if (grep(/^partorder$/,@libfilekeys)) { 13843: %currmetaentry = %metaentry; 13844: my $libpartorder = &metadata($location,'partorder',undef,undef,undef, 13845: $depthcount+1); 13846: %metaentry = %currmetaentry; 13847: undef(%currmetaentry); 13848: if ($libpartorder ne '') { 13849: $importedparts = 1; 13850: $importedpartids{$token->[2]->{'id'}}=$libpartorder; 13851: } 13852: } 13853: } 13854: if ($depthcount<20) { 13855: my $metadata = 13856: &metadata($uri,'keys',$toolsymb,$location,$unikey, 13857: $depthcount+1); 13858: foreach my $meta (split(',',$metadata)) { 13859: $metaentry{':'.$meta}=$metaentry{':'.$meta}; 13860: $metathesekeys{$meta}=1; 13861: } 13862: } 13863: } else { 13864: # 13865: # Not importing, some other kind of non-package, non-library start tag 13866: # 13867: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'}); 13868: if (defined($token->[2]->{'id'})) { 13869: $unikey.='_'.$token->[2]->{'id'}; 13870: } 13871: if (defined($token->[2]->{'name'})) { 13872: $unikey.='_'.$token->[2]->{'name'}; 13873: } 13874: $metathesekeys{$unikey}=1; 13875: foreach my $param (@{$token->[3]}) { 13876: $metaentry{':'.$unikey.'.'.$param} = 13877: $token->[2]->{$param}; 13878: } 13879: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry)); 13880: my $default=$metaentry{':'.$unikey.'.default'}; 13881: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) { 13882: # only ws inside the tag, and not in default, so use default 13883: # as value 13884: $metaentry{':'.$unikey}=$default; 13885: } elsif ( $internaltext =~ /\S/ ) { 13886: # something interesting inside the tag 13887: $metaentry{':'.$unikey}=$internaltext; 13888: } else { 13889: # no interesting values, don't set a default 13890: } 13891: # end of not-a-package not-a-library import 13892: } 13893: # end of not-a-package start tag 13894: } 13895: # the next is the end of "start tag" 13896: } 13897: } 13898: my ($extension) = ($uri =~ /\.(\w+)$/); 13899: $extension = lc($extension); 13900: if ($extension eq 'htm') { $extension='html'; } 13901: 13902: foreach my $key (keys(%packagetab)) { 13903: #no specific packages #how's our extension 13904: if ($key!~/^extension_\Q$extension\E&/) { next; } 13905: &metadata_create_package_def($uri,$key,'extension_'.$extension, 13906: \%metathesekeys); 13907: } 13908: 13909: if (!exists($metaentry{':packages'}) 13910: || $packagetab{"import_defaults&extension_$extension"}) { 13911: foreach my $key (keys(%packagetab)) { 13912: #no specific packages well let's get default then 13913: if ($key!~/^default&/) { next; } 13914: &metadata_create_package_def($uri,$key,'default', 13915: \%metathesekeys); 13916: } 13917: } 13918: # are there custom rights to evaluate 13919: if ($metaentry{':copyright'} eq 'custom') { 13920: 13921: # 13922: # Importing a rights file here 13923: # 13924: unless ($depthcount) { 13925: my $location=$metaentry{':customdistributionfile'}; 13926: my $dir=$filename; 13927: $dir=~s|[^/]*$||; 13928: $location=&filelocation($dir,$location); 13929: my $rights_metadata = 13930: &metadata($uri,'keys',$toolsymb,$location,'_rights', 13931: $depthcount+1); 13932: foreach my $rights (split(',',$rights_metadata)) { 13933: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights}; 13934: $metathesekeys{$rights}=1; 13935: } 13936: } 13937: } 13938: # uniqifiy package listing 13939: my %seen; 13940: my @uniq_packages = 13941: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'})); 13942: $metaentry{':packages'} = join(',',@uniq_packages); 13943: 13944: if (($importedresponses) || ($importedparts)) { 13945: if ($importedparts) { 13946: # We had imported parts and need to rebuild partorder 13947: $metaentry{':partorder'}=''; 13948: $metathesekeys{'partorder'}=1; 13949: } 13950: if ($importedresponses) { 13951: # We had imported responses and need to rebuil responseorder 13952: $metaentry{':responseorder'}=''; 13953: $metathesekeys{'responseorder'}=1; 13954: } 13955: for (my $index=0;$index<$#origfiletagids;$index+=2) { 13956: my $origid = $origfiletagids[$index+1]; 13957: if ($origfiletagids[$index] eq 'part') { 13958: # Original part, part of the problem 13959: if ($importedparts) { 13960: $metaentry{':partorder'}.=','.$origid; 13961: } 13962: } elsif ($origfiletagids[$index] eq 'import') { 13963: if ($importedparts) { 13964: # We have imported parts at this position 13965: if ($importedpartids{$origid} ne '') { 13966: $metaentry{':partorder'}.=','.$importedpartids{$origid}; 13967: } 13968: } 13969: if ($importedresponses) { 13970: # We have imported responses at this position 13971: if ($importedrespids{$origid} ne '') { 13972: $metaentry{':responseorder'}.=','.$importedrespids{$origid}; 13973: } 13974: } 13975: } else { 13976: # Original response item, part of the problem 13977: if ($importedresponses) { 13978: $metaentry{':responseorder'}.=','.$origid; 13979: } 13980: } 13981: } 13982: if ($importedparts) { 13983: $metaentry{':partorder'}=~s/^\,//; 13984: } 13985: if ($importedresponses) { 13986: $metaentry{':responseorder'}=~s/^\,//; 13987: } 13988: } 13989: $metaentry{':keys'} = join(',',keys(%metathesekeys)); 13990: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri); 13991: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys)); 13992: unless ($liburi) { 13993: &do_cache_new('meta',$uri,\%metaentry,$cachetime); 13994: } 13995: # this is the end of "was not already recently cached 13996: } 13997: return $metaentry{':'.$what}; 13998: } 13999: 14000: sub metadata_create_package_def { 14001: my ($uri,$key,$package,$metathesekeys)=@_; 14002: my ($pack,$name,$subp)=split(/\&/,$key); 14003: if ($subp eq 'default') { next; } 14004: 14005: if (defined($metaentry{':packages'})) { 14006: $metaentry{':packages'}.=','.$package; 14007: } else { 14008: $metaentry{':packages'}=$package; 14009: } 14010: my $value=$packagetab{$key}; 14011: my $unikey; 14012: $unikey='parameter_0_'.$name; 14013: $metaentry{':'.$unikey.'.part'}=0; 14014: $$metathesekeys{$unikey}=1; 14015: unless (defined($metaentry{':'.$unikey.'.'.$subp})) { 14016: $metaentry{':'.$unikey.'.'.$subp}=$value; 14017: } 14018: if (defined($metaentry{':'.$unikey.'.default'})) { 14019: $metaentry{':'.$unikey}= 14020: $metaentry{':'.$unikey.'.default'}; 14021: } 14022: } 14023: 14024: sub metadata_generate_part0 { 14025: my ($metadata,$metacache,$uri) = @_; 14026: my %allnames; 14027: foreach my $metakey (keys(%$metadata)) { 14028: if ($metakey=~/^parameter\_(.*)/) { 14029: my $part=$$metacache{':'.$metakey.'.part'}; 14030: my $name=$$metacache{':'.$metakey.'.name'}; 14031: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) { 14032: $allnames{$name}=$part; 14033: } 14034: } 14035: } 14036: foreach my $name (keys(%allnames)) { 14037: $$metadata{"parameter_0_$name"}=1; 14038: my $key=":parameter_0_$name"; 14039: $$metacache{"$key.part"}='0'; 14040: $$metacache{"$key.name"}=$name; 14041: $$metacache{"$key.type"}=$$metacache{':parameter_'. 14042: $allnames{$name}.'_'.$name. 14043: '.type'}; 14044: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name. 14045: '.display'}; 14046: my $expr='[Part: '.$allnames{$name}.']'; 14047: $olddis=~s/\Q$expr\E/\[Part: 0\]/; 14048: $$metacache{"$key.display"}=$olddis; 14049: } 14050: } 14051: 14052: # ------------------------------------------------------ Devalidate title cache 14053: 14054: sub devalidate_title_cache { 14055: my ($url)=@_; 14056: if (!$env{'request.course.id'}) { return; } 14057: my $symb=&symbread($url); 14058: if (!$symb) { return; } 14059: my $key=$env{'request.course.id'}."\0".$symb; 14060: &devalidate_cache_new('title',$key); 14061: } 14062: 14063: # ------------------------------------------------- Get the title of a course 14064: 14065: sub current_course_title { 14066: return $env{ 'course.' . $env{'request.course.id'} . '.description' }; 14067: } 14068: # ------------------------------------------------- Get the title of a resource 14069: 14070: sub gettitle { 14071: my $urlsymb=shift; 14072: my $symb=&symbread($urlsymb); 14073: if ($symb) { 14074: my $key=$env{'request.course.id'}."\0".$symb; 14075: my ($result,$cached)=&is_cached_new('title',$key); 14076: if (defined($cached)) { 14077: return $result; 14078: } 14079: my ($map,$resid,$url)=&decode_symb($symb); 14080: my $title=''; 14081: if (!$map && $resid == 0 && $url =~/default\.sequence$/) { 14082: $title = $env{'course.'.$env{'request.course.id'}.'.description'}; 14083: } else { 14084: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 14085: &GDBM_READER(),0640)) { 14086: my $mapid=$bighash{'map_pc_'.&clutter($map)}; 14087: $title=$bighash{'title_'.$mapid.'.'.$resid}; 14088: untie(%bighash); 14089: } 14090: } 14091: $title=~s/\&colon\;/\:/gs; 14092: if ($title) { 14093: # Remember both $symb and $title for dynamic metadata 14094: $accesshash{$symb.'___crstitle'}=$title; 14095: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time; 14096: # Cache this title and then return it 14097: return &do_cache_new('title',$key,$title,600); 14098: } 14099: $urlsymb=$url; 14100: } 14101: my $title=&metadata($urlsymb,'title'); 14102: if (!$title) { $title=(split('/',$urlsymb))[-1]; } 14103: return $title; 14104: } 14105: 14106: sub get_slot { 14107: my ($which,$cnum,$cdom)=@_; 14108: if (!$cnum || !$cdom) { 14109: (undef,my $courseid)=&whichuser(); 14110: $cdom=$env{'course.'.$courseid.'.domain'}; 14111: $cnum=$env{'course.'.$courseid.'.num'}; 14112: } 14113: my $key=join("\0",'slots',$cdom,$cnum,$which); 14114: my %slotinfo; 14115: if (exists($remembered{$key})) { 14116: $slotinfo{$which} = $remembered{$key}; 14117: } else { 14118: %slotinfo=&get('slots',[$which],$cdom,$cnum); 14119: &Apache::lonhomework::showhash(%slotinfo); 14120: my ($tmp)=keys(%slotinfo); 14121: if ($tmp=~/^error:/) { return (); } 14122: $remembered{$key} = $slotinfo{$which}; 14123: } 14124: if (ref($slotinfo{$which}) eq 'HASH') { 14125: return %{$slotinfo{$which}}; 14126: } 14127: return $slotinfo{$which}; 14128: } 14129: 14130: sub get_reservable_slots { 14131: my ($cnum,$cdom,$uname,$udom) = @_; 14132: my $now = time; 14133: my $reservable_info; 14134: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom); 14135: if (exists($remembered{$key})) { 14136: $reservable_info = $remembered{$key}; 14137: } else { 14138: my %resv; 14139: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) = 14140: &Apache::loncommon::get_future_slots($cnum,$cdom,$now); 14141: $reservable_info = \%resv; 14142: $remembered{$key} = $reservable_info; 14143: } 14144: return $reservable_info; 14145: } 14146: 14147: sub get_course_slots { 14148: my ($cnum,$cdom) = @_; 14149: my $hashid=$cnum.':'.$cdom; 14150: my ($result,$cached) = &is_cached_new('allslots',$hashid); 14151: if (defined($cached)) { 14152: if (ref($result) eq 'HASH') { 14153: return %{$result}; 14154: } 14155: } else { 14156: my %slots=&dump('slots',$cdom,$cnum); 14157: my ($tmp) = keys(%slots); 14158: if ($tmp !~ /^(con_lost|error|no_such_host)/i) { 14159: &do_cache_new('allslots',$hashid,\%slots,600); 14160: return %slots; 14161: } 14162: } 14163: return; 14164: } 14165: 14166: sub devalidate_slots_cache { 14167: my ($cnum,$cdom)=@_; 14168: my $hashid=$cnum.':'.$cdom; 14169: &devalidate_cache_new('allslots',$hashid); 14170: } 14171: 14172: sub get_coursechange { 14173: my ($cdom,$cnum) = @_; 14174: if ($cdom eq '' || $cnum eq '') { 14175: return unless ($env{'request.course.id'}); 14176: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 14177: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 14178: } 14179: my $hashid=$cdom.'_'.$cnum; 14180: my ($change,$cached)=&is_cached_new('crschange',$hashid); 14181: if ((defined($cached)) && ($change ne '')) { 14182: return $change; 14183: } else { 14184: my %crshash; 14185: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum); 14186: if ($crshash{'internal.contentchange'} eq '') { 14187: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'}; 14188: if ($change eq '') { 14189: %crshash = &get('environment',['internal.created'],$cdom,$cnum); 14190: $change = $crshash{'internal.created'}; 14191: } 14192: } else { 14193: $change = $crshash{'internal.contentchange'}; 14194: } 14195: my $cachetime = 600; 14196: &do_cache_new('crschange',$hashid,$change,$cachetime); 14197: } 14198: return $change; 14199: } 14200: 14201: sub devalidate_coursechange_cache { 14202: my ($cdom,$cnum)=@_; 14203: my $hashid=$cdom.'_'.$cnum; 14204: &devalidate_cache_new('crschange',$hashid); 14205: } 14206: 14207: sub get_suppchange { 14208: my ($cdom,$cnum) = @_; 14209: if ($cdom eq '' || $cnum eq '') { 14210: return unless ($env{'request.course.id'}); 14211: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 14212: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 14213: } 14214: my $hashid=$cdom.'_'.$cnum; 14215: my ($change,$cached)=&is_cached_new('suppchange',$hashid); 14216: if ((defined($cached)) && ($change ne '')) { 14217: return $change; 14218: } else { 14219: my %crshash = &get('environment',['internal.supplementalchange'],$cdom,$cnum); 14220: if ($crshash{'internal.supplementalchange'} eq '') { 14221: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'}; 14222: if ($change eq '') { 14223: %crshash = &get('environment',['internal.created'],$cdom,$cnum); 14224: $change = $crshash{'internal.created'}; 14225: } 14226: } else { 14227: $change = $crshash{'internal.supplementalchange'}; 14228: } 14229: my $cachetime = 600; 14230: &do_cache_new('suppchange',$hashid,$change,$cachetime); 14231: } 14232: return $change; 14233: } 14234: 14235: sub devalidate_suppchange_cache { 14236: my ($cdom,$cnum)=@_; 14237: my $hashid=$cdom.'_'.$cnum; 14238: &devalidate_cache_new('suppchange',$hashid); 14239: } 14240: 14241: sub update_supp_caches { 14242: my ($cdom,$cnum) = @_; 14243: my %servers = &internet_dom_servers($cdom); 14244: my @ids=&current_machine_ids(); 14245: foreach my $server (keys(%servers)) { 14246: next if (grep(/^\Q$server\E$/,@ids)); 14247: my $hashid=$cnum.':'.$cdom; 14248: my $cachekey = &escape('showsupp').':'.&escape($hashid); 14249: &remote_devalidate_cache($server,[$cachekey]); 14250: } 14251: &has_unhidden_suppfiles($cnum,$cdom,1,1); 14252: &count_supptools($cnum,$cdom,1); 14253: my $now = time; 14254: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { 14255: &Apache::lonnet::appenv({'request.course.suppupdated' => $now}); 14256: } 14257: &put('environment',{'internal.supplementalchange' => $now}, 14258: $cdom,$cnum); 14259: &Apache::lonnet::appenv( 14260: {'course.'.$cdom.'_'.$cnum.'.internal.supplementalchange' => $now}); 14261: &do_cache_new('suppchange',$cdom.'_'.$cnum,$now,600); 14262: } 14263: 14264: # ------------------------------------------------- Update symbolic store links 14265: 14266: sub symblist { 14267: my ($mapname,%newhash)=@_; 14268: $mapname=&deversion(&declutter($mapname)); 14269: my %hash; 14270: if (($env{'request.course.fn'}) && (%newhash)) { 14271: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', 14272: &GDBM_WRCREAT(),0640)) { 14273: foreach my $url (keys(%newhash)) { 14274: next if ($url eq 'last_known' 14275: && $env{'form.no_update_last_known'}); 14276: $hash{declutter($url)}=&encode_symb($mapname, 14277: $newhash{$url}->[1], 14278: $newhash{$url}->[0]); 14279: } 14280: if (untie(%hash)) { 14281: return 'ok'; 14282: } 14283: } 14284: } 14285: return 'error'; 14286: } 14287: 14288: # --------------------------------------------------------------- Verify a symb 14289: 14290: sub symbverify { 14291: my ($symb,$thisurl,$encstate)=@_; 14292: my $thisfn=$thisurl; 14293: $thisfn=&declutter($thisfn); 14294: # direct jump to resource in page or to a sequence - will construct own symbs 14295: if ($thisfn=~/\.(page|sequence)$/) { return 1; } 14296: # check URL part 14297: my ($map,$resid,$url)=&decode_symb($symb); 14298: 14299: unless ($url eq $thisfn) { return 0; } 14300: 14301: $symb=&symbclean($symb); 14302: $thisurl=&deversion($thisurl); 14303: $thisfn=&deversion($thisfn); 14304: 14305: my %bighash; 14306: my $okay=0; 14307: 14308: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 14309: &GDBM_READER(),0640)) { 14310: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) { 14311: $thisurl =~ s/\?.+$//; 14312: if ($map =~ m{^uploaded/.+\.page$}) { 14313: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://}; 14314: $thisurl =~ s{^\Qhttp://https://\E}{https://}; 14315: } 14316: } 14317: my $ids; 14318: if ($map =~ m{^uploaded/.+\.page$}) { 14319: $ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)}; 14320: } else { 14321: $ids=$bighash{'ids_'.&clutter($thisurl)}; 14322: } 14323: unless ($ids) { 14324: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl; 14325: $ids=$bighash{$idkey}; 14326: } 14327: if ($ids) { 14328: # ------------------------------------------------------------------- Has ID(s) 14329: if ($thisfn =~ m{^/adm/wrapper/ext/}) { 14330: $symb =~ s/\?.+$//; 14331: } 14332: foreach my $id (split(/\,/,$ids)) { 14333: my ($mapid,$resid)=split(/\./,$id); 14334: if ( 14335: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn) 14336: eq $symb) { 14337: if (ref($encstate)) { 14338: $$encstate = $bighash{'encrypted_'.$id}; 14339: } 14340: if (($env{'request.role.adv'}) || 14341: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) || 14342: ($thisurl eq '/adm/navmaps')) { 14343: $okay=1; 14344: last; 14345: } 14346: } 14347: } 14348: } 14349: untie(%bighash); 14350: } 14351: return $okay; 14352: } 14353: 14354: # --------------------------------------------------------------- Clean-up symb 14355: 14356: sub symbclean { 14357: my $symb=shift; 14358: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } 14359: # remove version from map 14360: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/; 14361: 14362: # remove version from URL 14363: $symb=~s/\.(\d+)\.(\w+)$/\.$2/; 14364: 14365: # remove wrapper 14366: 14367: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/; 14368: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/; 14369: return $symb; 14370: } 14371: 14372: # ---------------------------------------------- Split symb to find map and url 14373: 14374: sub encode_symb { 14375: my ($map,$resid,$url)=@_; 14376: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url)); 14377: } 14378: 14379: sub decode_symb { 14380: my $symb=shift; 14381: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } 14382: my ($map,$resid,$url)=split(/___/,$symb); 14383: return (&fixversion($map),$resid,&fixversion($url)); 14384: } 14385: 14386: sub fixversion { 14387: my $fn=shift; 14388: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; } 14389: my %bighash; 14390: my $uri=&clutter($fn); 14391: my $key=$env{'request.course.id'}.'_'.$uri; 14392: # is this cached? 14393: my ($result,$cached)=&is_cached_new('courseresversion',$key); 14394: if (defined($cached)) { return $result; } 14395: # unfortunately not cached, or expired 14396: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 14397: &GDBM_READER(),0640)) { 14398: if ($bighash{'version_'.$uri}) { 14399: my $version=$bighash{'version_'.$uri}; 14400: unless (($version eq 'mostrecent') || 14401: ($version==&getversion($uri))) { 14402: $uri=~s/\.(\w+)$/\.$version\.$1/; 14403: } 14404: } 14405: untie %bighash; 14406: } 14407: return &do_cache_new('courseresversion',$key,&declutter($uri),600); 14408: } 14409: 14410: sub deversion { 14411: my $url=shift; 14412: $url=~s/\.\d+\.(\w+)$/\.$1/; 14413: return $url; 14414: } 14415: 14416: # ------------------------------------------------------ Return symb list entry 14417: 14418: sub symbread { 14419: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles, 14420: $ignoresymbdb,$noenccheck)=@_; 14421: my $cache_str='request.symbread.cached.'.$thisfn; 14422: if (defined($env{$cache_str})) { 14423: unless (ref($possibles) eq 'HASH') { 14424: if ($ignorecachednull) { 14425: return $env{$cache_str} unless ($env{$cache_str} eq ''); 14426: } else { 14427: return $env{$cache_str}; 14428: } 14429: } 14430: } 14431: # no filename provided? try from environment 14432: unless ($thisfn) { 14433: if ($env{'request.symb'}) { 14434: return $env{$cache_str}=&symbclean($env{'request.symb'}); 14435: } 14436: $thisfn=$env{'request.filename'}; 14437: } 14438: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } 14439: # is that filename actually a symb? Verify, clean, and return 14440: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) { 14441: if (&symbverify($thisfn,$1)) { 14442: return $env{$cache_str}=&symbclean($thisfn); 14443: } 14444: } 14445: $thisfn=declutter($thisfn); 14446: my %hash; 14447: my %bighash; 14448: my $syval=''; 14449: if (($env{'request.course.fn'}) && ($thisfn)) { 14450: unless ($ignoresymbdb) { 14451: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', 14452: &GDBM_READER(),0640)) { 14453: $syval=$hash{$thisfn}; 14454: untie(%hash); 14455: } 14456: if ($syval && $checkforblock) { 14457: my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck); 14458: if (@blockers) { 14459: $syval=''; 14460: } 14461: } 14462: } 14463: # ---------------------------------------------------------- There was an entry 14464: if ($syval) { 14465: #unless ($syval=~/\_\d+$/) { 14466: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) { 14467: #&appenv({'request.ambiguous' => $thisfn}); 14468: #return $env{$cache_str}=''; 14469: #} 14470: #$syval.=$1; 14471: #} 14472: } else { 14473: # ------------------------------------------------------- Was not in symb table 14474: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 14475: &GDBM_READER(),0640)) { 14476: # ---------------------------------------------- Get ID(s) for current resource 14477: my $ids=$bighash{'ids_'.&clutter($thisfn)}; 14478: unless ($ids) { 14479: $ids=$bighash{'ids_/'.$thisfn}; 14480: } 14481: unless ($ids) { 14482: # alias? 14483: $ids=$bighash{'mapalias_'.$thisfn}; 14484: } 14485: if ($ids) { 14486: # ------------------------------------------------------------------- Has ID(s) 14487: my @possibilities=split(/\,/,$ids); 14488: if ($#possibilities==0) { 14489: # ----------------------------------------------- There is only one possibility 14490: my ($mapid,$resid)=split(/\./,$ids); 14491: $syval=&encode_symb($bighash{'map_id_'.$mapid}, 14492: $resid,$thisfn); 14493: if (ref($possibles) eq 'HASH') { 14494: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { 14495: $possibles->{$syval} = 1; 14496: } 14497: } 14498: if ($checkforblock) { 14499: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { 14500: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck); 14501: if (@blockers) { 14502: $syval = ''; 14503: untie(%bighash); 14504: return $env{$cache_str}=''; 14505: } 14506: } 14507: } 14508: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { 14509: # ------------------------------------------ There is more than one possibility 14510: my $realpossible=0; 14511: foreach my $id (@possibilities) { 14512: my $file=$bighash{'src_'.$id}; 14513: my $canaccess; 14514: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { 14515: $canaccess = 1; 14516: } else { 14517: $canaccess = &allowed('bre',$file); 14518: } 14519: if ($canaccess) { 14520: my ($mapid,$resid)=split(/\./,$id); 14521: if ($bighash{'map_type_'.$mapid} ne 'page') { 14522: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, 14523: $resid,$thisfn); 14524: next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'}); 14525: next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'})); 14526: if ($checkforblock) { 14527: my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck); 14528: if (@blockers > 0) { 14529: $syval = ''; 14530: } else { 14531: $syval = $poss_syval; 14532: $realpossible++; 14533: } 14534: } else { 14535: $syval = $poss_syval; 14536: $realpossible++; 14537: } 14538: if ($syval) { 14539: if (ref($possibles) eq 'HASH') { 14540: $possibles->{$syval} = 1; 14541: } 14542: } 14543: } 14544: } 14545: } 14546: if ($realpossible!=1) { $syval=''; } 14547: } else { 14548: $syval=''; 14549: } 14550: } 14551: untie(%bighash); 14552: } 14553: } 14554: if ($syval) { 14555: return $env{$cache_str}=$syval; 14556: } 14557: } 14558: &appenv({'request.ambiguous' => $thisfn}); 14559: return $env{$cache_str}=''; 14560: } 14561: 14562: # ---------------------------------------------------------- Return random seed 14563: 14564: sub numval { 14565: my $txt=shift; 14566: $txt=~tr/A-J/0-9/; 14567: $txt=~tr/a-j/0-9/; 14568: $txt=~tr/K-T/0-9/; 14569: $txt=~tr/k-t/0-9/; 14570: $txt=~tr/U-Z/0-5/; 14571: $txt=~tr/u-z/0-5/; 14572: $txt=~s/\D//g; 14573: if ($_64bit) { if ($txt > 2**32) { return -1; } } 14574: return int($txt); 14575: } 14576: 14577: sub numval2 { 14578: my $txt=shift; 14579: $txt=~tr/A-J/0-9/; 14580: $txt=~tr/a-j/0-9/; 14581: $txt=~tr/K-T/0-9/; 14582: $txt=~tr/k-t/0-9/; 14583: $txt=~tr/U-Z/0-5/; 14584: $txt=~tr/u-z/0-5/; 14585: $txt=~s/\D//g; 14586: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); 14587: my $total; 14588: foreach my $val (@txts) { $total+=$val; } 14589: if ($_64bit) { if ($total > 2**32) { return -1; } } 14590: return int($total); 14591: } 14592: 14593: sub numval3 { 14594: use integer; 14595: my $txt=shift; 14596: $txt=~tr/A-J/0-9/; 14597: $txt=~tr/a-j/0-9/; 14598: $txt=~tr/K-T/0-9/; 14599: $txt=~tr/k-t/0-9/; 14600: $txt=~tr/U-Z/0-5/; 14601: $txt=~tr/u-z/0-5/; 14602: $txt=~s/\D//g; 14603: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); 14604: my $total; 14605: foreach my $val (@txts) { $total+=$val; } 14606: if ($_64bit) { $total=(($total<<32)>>32); } 14607: return $total; 14608: } 14609: 14610: sub digest { 14611: my ($data)=@_; 14612: my $digest=&Digest::MD5::md5($data); 14613: my ($a,$b,$c,$d)=unpack("iiii",$digest); 14614: my ($e,$f); 14615: { 14616: use integer; 14617: $e=($a+$b); 14618: $f=($c+$d); 14619: if ($_64bit) { 14620: $e=(($e<<32)>>32); 14621: $f=(($f<<32)>>32); 14622: } 14623: } 14624: if (wantarray) { 14625: return ($e,$f); 14626: } else { 14627: my $g; 14628: { 14629: use integer; 14630: $g=($e+$f); 14631: if ($_64bit) { 14632: $g=(($g<<32)>>32); 14633: } 14634: } 14635: return $g; 14636: } 14637: } 14638: 14639: sub latest_rnd_algorithm_id { 14640: return '64bit5'; 14641: } 14642: 14643: sub get_rand_alg { 14644: my ($courseid)=@_; 14645: if (!$courseid) { $courseid=(&whichuser())[1]; } 14646: if ($courseid) { 14647: return $env{"course.$courseid.rndseed"}; 14648: } 14649: return &latest_rnd_algorithm_id(); 14650: } 14651: 14652: sub validCODE { 14653: my ($CODE)=@_; 14654: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; } 14655: return 0; 14656: } 14657: 14658: sub getCODE { 14659: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; } 14660: if ( (defined($Apache::lonhomework::parsing_a_problem) || 14661: defined($Apache::lonhomework::parsing_a_task) ) && 14662: &validCODE($Apache::lonhomework::history{'resource.CODE'})) { 14663: return $Apache::lonhomework::history{'resource.CODE'}; 14664: } 14665: return undef; 14666: } 14667: # 14668: # Determines the random seed for a specific context: 14669: # 14670: # parameters: 14671: # symb - in course context the symb for the seed. 14672: # course_id - The course id of the form domain_coursenum. 14673: # domain - Domain for the user. 14674: # course - Course for the user. 14675: # cenv - environment of the course. 14676: # 14677: # NOTE: 14678: # All parameters are picked out of the environment if missing 14679: # or not defined. 14680: # If a symb cannot be determined the current time is used instead. 14681: # 14682: # For a given well defined symb, courside, domain, username, 14683: # and course environment, the seed is reproducible. 14684: # 14685: sub rndseed { 14686: my ($symb,$courseid,$domain,$username, $cenv)=@_; 14687: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser(); 14688: if (!defined($symb)) { 14689: unless ($symb=$wsymb) { return time; } 14690: } 14691: if (!defined $courseid) { 14692: $courseid=$wcourseid; 14693: } 14694: if (!defined $domain) { $domain=$wdomain; } 14695: if (!defined $username) { $username=$wusername } 14696: 14697: my $which; 14698: if (defined($cenv->{'rndseed'})) { 14699: $which = $cenv->{'rndseed'}; 14700: } else { 14701: $which =&get_rand_alg($courseid); 14702: } 14703: if (defined(&getCODE())) { 14704: 14705: if ($which eq '64bit5') { 14706: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username); 14707: } elsif ($which eq '64bit4') { 14708: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username); 14709: } else { 14710: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username); 14711: } 14712: } elsif ($which eq '64bit5') { 14713: return &rndseed_64bit5($symb,$courseid,$domain,$username); 14714: } elsif ($which eq '64bit4') { 14715: return &rndseed_64bit4($symb,$courseid,$domain,$username); 14716: } elsif ($which eq '64bit3') { 14717: return &rndseed_64bit3($symb,$courseid,$domain,$username); 14718: } elsif ($which eq '64bit2') { 14719: return &rndseed_64bit2($symb,$courseid,$domain,$username); 14720: } elsif ($which eq '64bit') { 14721: return &rndseed_64bit($symb,$courseid,$domain,$username); 14722: } 14723: return &rndseed_32bit($symb,$courseid,$domain,$username); 14724: } 14725: 14726: sub rndseed_32bit { 14727: my ($symb,$courseid,$domain,$username)=@_; 14728: { 14729: use integer; 14730: my $symbchck=unpack("%32C*",$symb) << 27; 14731: my $symbseed=numval($symb) << 22; 14732: my $namechck=unpack("%32C*",$username) << 17; 14733: my $nameseed=numval($username) << 12; 14734: my $domainseed=unpack("%32C*",$domain) << 7; 14735: my $courseseed=unpack("%32C*",$courseid); 14736: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck; 14737: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 14738: #&logthis("rndseed :$num:$symb"); 14739: if ($_64bit) { $num=(($num<<32)>>32); } 14740: return $num; 14741: } 14742: } 14743: 14744: sub rndseed_64bit { 14745: my ($symb,$courseid,$domain,$username)=@_; 14746: { 14747: use integer; 14748: my $symbchck=unpack("%32S*",$symb) << 21; 14749: my $symbseed=numval($symb) << 10; 14750: my $namechck=unpack("%32S*",$username); 14751: 14752: my $nameseed=numval($username) << 21; 14753: my $domainseed=unpack("%32S*",$domain) << 10; 14754: my $courseseed=unpack("%32S*",$courseid); 14755: 14756: my $num1=$symbchck+$symbseed+$namechck; 14757: my $num2=$nameseed+$domainseed+$courseseed; 14758: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 14759: #&logthis("rndseed :$num:$symb"); 14760: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 14761: return "$num1,$num2"; 14762: } 14763: } 14764: 14765: sub rndseed_64bit2 { 14766: my ($symb,$courseid,$domain,$username)=@_; 14767: { 14768: use integer; 14769: # strings need to be an even # of cahracters long, it it is odd the 14770: # last characters gets thrown away 14771: my $symbchck=unpack("%32S*",$symb.' ') << 21; 14772: my $symbseed=numval($symb) << 10; 14773: my $namechck=unpack("%32S*",$username.' '); 14774: 14775: my $nameseed=numval($username) << 21; 14776: my $domainseed=unpack("%32S*",$domain.' ') << 10; 14777: my $courseseed=unpack("%32S*",$courseid.' '); 14778: 14779: my $num1=$symbchck+$symbseed+$namechck; 14780: my $num2=$nameseed+$domainseed+$courseseed; 14781: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 14782: #&logthis("rndseed :$num:$symb"); 14783: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 14784: return "$num1,$num2"; 14785: } 14786: } 14787: 14788: sub rndseed_64bit3 { 14789: my ($symb,$courseid,$domain,$username)=@_; 14790: { 14791: use integer; 14792: # strings need to be an even # of cahracters long, it it is odd the 14793: # last characters gets thrown away 14794: my $symbchck=unpack("%32S*",$symb.' ') << 21; 14795: my $symbseed=numval2($symb) << 10; 14796: my $namechck=unpack("%32S*",$username.' '); 14797: 14798: my $nameseed=numval2($username) << 21; 14799: my $domainseed=unpack("%32S*",$domain.' ') << 10; 14800: my $courseseed=unpack("%32S*",$courseid.' '); 14801: 14802: my $num1=$symbchck+$symbseed+$namechck; 14803: my $num2=$nameseed+$domainseed+$courseseed; 14804: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 14805: #&logthis("rndseed :$num1:$num2:$_64bit"); 14806: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 14807: 14808: return "$num1:$num2"; 14809: } 14810: } 14811: 14812: sub rndseed_64bit4 { 14813: my ($symb,$courseid,$domain,$username)=@_; 14814: { 14815: use integer; 14816: # strings need to be an even # of cahracters long, it it is odd the 14817: # last characters gets thrown away 14818: my $symbchck=unpack("%32S*",$symb.' ') << 21; 14819: my $symbseed=numval3($symb) << 10; 14820: my $namechck=unpack("%32S*",$username.' '); 14821: 14822: my $nameseed=numval3($username) << 21; 14823: my $domainseed=unpack("%32S*",$domain.' ') << 10; 14824: my $courseseed=unpack("%32S*",$courseid.' '); 14825: 14826: my $num1=$symbchck+$symbseed+$namechck; 14827: my $num2=$nameseed+$domainseed+$courseseed; 14828: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 14829: #&logthis("rndseed :$num1:$num2:$_64bit"); 14830: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 14831: 14832: return "$num1:$num2"; 14833: } 14834: } 14835: 14836: sub rndseed_64bit5 { 14837: my ($symb,$courseid,$domain,$username)=@_; 14838: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username"); 14839: return "$num1:$num2"; 14840: } 14841: 14842: sub rndseed_CODE_64bit { 14843: my ($symb,$courseid,$domain,$username)=@_; 14844: { 14845: use integer; 14846: my $symbchck=unpack("%32S*",$symb.' ') << 16; 14847: my $symbseed=numval2($symb); 14848: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; 14849: my $CODEseed=numval(&getCODE()); 14850: my $courseseed=unpack("%32S*",$courseid.' '); 14851: my $num1=$symbseed+$CODEchck; 14852: my $num2=$CODEseed+$courseseed+$symbchck; 14853: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); 14854: #&logthis("rndseed :$num1:$num2:$symb"); 14855: if ($_64bit) { $num1=(($num1<<32)>>32); } 14856: if ($_64bit) { $num2=(($num2<<32)>>32); } 14857: return "$num1:$num2"; 14858: } 14859: } 14860: 14861: sub rndseed_CODE_64bit4 { 14862: my ($symb,$courseid,$domain,$username)=@_; 14863: { 14864: use integer; 14865: my $symbchck=unpack("%32S*",$symb.' ') << 16; 14866: my $symbseed=numval3($symb); 14867: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; 14868: my $CODEseed=numval3(&getCODE()); 14869: my $courseseed=unpack("%32S*",$courseid.' '); 14870: my $num1=$symbseed+$CODEchck; 14871: my $num2=$CODEseed+$courseseed+$symbchck; 14872: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); 14873: #&logthis("rndseed :$num1:$num2:$symb"); 14874: if ($_64bit) { $num1=(($num1<<32)>>32); } 14875: if ($_64bit) { $num2=(($num2<<32)>>32); } 14876: return "$num1:$num2"; 14877: } 14878: } 14879: 14880: sub rndseed_CODE_64bit5 { 14881: my ($symb,$courseid,$domain,$username)=@_; 14882: my $code = &getCODE(); 14883: my ($num1,$num2)=&digest("$symb,$courseid,$code"); 14884: return "$num1:$num2"; 14885: } 14886: 14887: sub setup_random_from_rndseed { 14888: my ($rndseed)=@_; 14889: if ($rndseed =~/([,:])/) { 14890: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed)); 14891: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) { 14892: &Math::Random::random_set_seed_from_phrase($rndseed); 14893: } else { 14894: &Math::Random::random_set_seed($num1,$num2); 14895: } 14896: } else { 14897: &Math::Random::random_set_seed_from_phrase($rndseed); 14898: } 14899: } 14900: 14901: sub latest_receipt_algorithm_id { 14902: return 'receipt3'; 14903: } 14904: 14905: sub recunique { 14906: my $fucourseid=shift; 14907: my $unique; 14908: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' || 14909: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { 14910: $unique=$env{"course.$fucourseid.internal.encseed"}; 14911: } else { 14912: $unique=$perlvar{'lonReceipt'}; 14913: } 14914: return unpack("%32C*",$unique); 14915: } 14916: 14917: sub recprefix { 14918: my $fucourseid=shift; 14919: my $prefix; 14920: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'|| 14921: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { 14922: $prefix=$env{"course.$fucourseid.internal.encpref"}; 14923: } else { 14924: $prefix=$perlvar{'lonHostID'}; 14925: } 14926: return unpack("%32C*",$prefix); 14927: } 14928: 14929: sub ireceipt { 14930: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_; 14931: 14932: my $return =&recprefix($fucourseid).'-'; 14933: 14934: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' || 14935: $env{'request.state'} eq 'construct') { 14936: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000); 14937: return $return; 14938: } 14939: 14940: my $cuname=unpack("%32C*",$funame); 14941: my $cudom=unpack("%32C*",$fudom); 14942: my $cucourseid=unpack("%32C*",$fucourseid); 14943: my $cusymb=unpack("%32C*",$fusymb); 14944: my $cunique=&recunique($fucourseid); 14945: my $cpart=unpack("%32S*",$part); 14946: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') { 14947: 14948: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom)); 14949: 14950: $return.= ($cunique%$cuname+ 14951: $cunique%$cudom+ 14952: $cusymb%$cuname+ 14953: $cusymb%$cudom+ 14954: $cucourseid%$cuname+ 14955: $cucourseid%$cudom+ 14956: $cpart%$cuname+ 14957: $cpart%$cudom); 14958: } else { 14959: $return.= ($cunique%$cuname+ 14960: $cunique%$cudom+ 14961: $cusymb%$cuname+ 14962: $cusymb%$cudom+ 14963: $cucourseid%$cuname+ 14964: $cucourseid%$cudom); 14965: } 14966: return $return; 14967: } 14968: 14969: sub receipt { 14970: my ($part)=@_; 14971: my ($symb,$courseid,$domain,$name) = &whichuser(); 14972: return &ireceipt($name,$domain,$courseid,$symb,$part); 14973: } 14974: 14975: sub whichuser { 14976: my ($passedsymb)=@_; 14977: my ($symb,$courseid,$domain,$name,$publicuser); 14978: if (defined($env{'form.grade_symb'})) { 14979: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid'); 14980: my $allowed=&allowed('vgr',$tmp_courseid); 14981: if (!$allowed && 14982: exists($env{'request.course.sec'}) && 14983: $env{'request.course.sec'} !~ /^\s*$/) { 14984: $allowed=&allowed('vgr',$tmp_courseid. 14985: '/'.$env{'request.course.sec'}); 14986: } 14987: if ($allowed) { 14988: ($symb)=&get_env_multiple('form.grade_symb'); 14989: $courseid=$tmp_courseid; 14990: ($domain)=&get_env_multiple('form.grade_domain'); 14991: ($name)=&get_env_multiple('form.grade_username'); 14992: return ($symb,$courseid,$domain,$name,$publicuser); 14993: } 14994: } 14995: if (!$passedsymb) { 14996: $symb=&symbread(); 14997: } else { 14998: $symb=$passedsymb; 14999: } 15000: $courseid=$env{'request.course.id'}; 15001: $domain=$env{'user.domain'}; 15002: $name=$env{'user.name'}; 15003: if ($name eq 'public' && $domain eq 'public') { 15004: if (!defined($env{'form.username'})) { 15005: $env{'form.username'}.=time.rand(10000000); 15006: } 15007: $name.=$env{'form.username'}; 15008: } 15009: return ($symb,$courseid,$domain,$name,$publicuser); 15010: 15011: } 15012: 15013: # ------------------------------------------------------------ Serves up a file 15014: # returns either the contents of the file or 15015: # -1 if the file doesn't exist 15016: # 15017: # if the target is a file that was uploaded via DOCS, 15018: # a check will be made to see if a current copy exists on the local server, 15019: # if it does this will be served, otherwise a copy will be retrieved from 15020: # the home server for the course and stored in /home/httpd/html/userfiles on 15021: # the local server. 15022: 15023: sub getfile { 15024: my ($file) = @_; 15025: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); } 15026: &repcopy($file); 15027: return &readfile($file); 15028: } 15029: 15030: sub repcopy_userfile { 15031: my ($file)=@_; 15032: my $londocroot = $perlvar{'lonDocRoot'}; 15033: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); } 15034: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } 15035: my ($cdom,$cnum,$filename) = 15036: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|); 15037: my $uri="/uploaded/$cdom/$cnum/$filename"; 15038: if (-e "$file") { 15039: # we already have a local copy, check it out 15040: my @fileinfo = stat($file); 15041: my $rtncode; 15042: my $info; 15043: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode); 15044: if ($lwpresp ne 'ok') { 15045: # there is no such file anymore, even though we had a local copy 15046: if ($rtncode eq '404') { 15047: unlink($file); 15048: } 15049: return -1; 15050: } 15051: if ($info < $fileinfo[9]) { 15052: # nice, the file we have is up-to-date, just say okay 15053: return 'ok'; 15054: } else { 15055: # the file is outdated, get rid of it 15056: unlink($file); 15057: } 15058: } 15059: # one way or the other, at this point, we don't have the file 15060: # construct the correct path for the file 15061: my @parts = ($cdom,$cnum); 15062: if ($filename =~ m|^(.+)/[^/]+$|) { 15063: push @parts, split(/\//,$1); 15064: } 15065: my $path = $perlvar{'lonDocRoot'}.'/userfiles'; 15066: foreach my $part (@parts) { 15067: $path .= '/'.$part; 15068: if (!-e $path) { 15069: mkdir($path,0770); 15070: } 15071: } 15072: # now the path exists for sure 15073: # get a user agent 15074: my $transferfile=$file.'.in.transfer'; 15075: # FIXME: this should flock 15076: if (-e $transferfile) { return 'ok'; } 15077: my $request; 15078: $uri=~s/^\///; 15079: my $homeserver = &homeserver($cnum,$cdom); 15080: my $hostname = &hostname($homeserver); 15081: my $protocol = $protocol{$homeserver}; 15082: $protocol = 'http' if ($protocol ne 'https'); 15083: $request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri); 15084: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1); 15085: # did it work? 15086: if ($response->is_error()) { 15087: unlink($transferfile); 15088: &logthis("Userfile repcopy failed for $uri"); 15089: return -1; 15090: } 15091: # worked, rename the transfer file 15092: rename($transferfile,$file); 15093: return 'ok'; 15094: } 15095: 15096: sub tokenwrapper { 15097: my $uri=shift; 15098: $uri=~s|^https?\://([^/]+)||; 15099: $uri=~s|^/||; 15100: $env{'user.environment'}=~/\/([^\/]+)\.id/; 15101: my $token=$1; 15102: my (undef,$udom,$uname,$file)=split('/',$uri,4); 15103: if ($udom && $uname && $file) { 15104: $file=~s|(\?\.*)*$||; 15105: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}}); 15106: my $homeserver = &homeserver($uname,$udom); 15107: my $hostname = &hostname($homeserver); 15108: my $protocol = $protocol{$homeserver}; 15109: $protocol = 'http' if ($protocol ne 'https'); 15110: return $protocol.'://'.$hostname.'/'.$uri. 15111: (($uri=~/\?/)?'&':'?').'token='.$token. 15112: '&tokenissued='.$perlvar{'lonHostID'}; 15113: } else { 15114: return '/adm/notfound.html'; 15115: } 15116: } 15117: 15118: # call with reqtype HEAD: get last modification time 15119: # call with reqtype GET: get the file contents 15120: # Do not call this with reqtype GET for large files! It loads everything into memory 15121: # 15122: sub getuploaded { 15123: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_; 15124: $uri=~s/^\///; 15125: my $homeserver = &homeserver($cnum,$cdom); 15126: my $hostname = &hostname($homeserver); 15127: my $protocol = $protocol{$homeserver}; 15128: $protocol = 'http' if ($protocol ne 'https'); 15129: $uri = $protocol.'://'.$hostname.'/raw/'.$uri; 15130: my $request=new HTTP::Request($reqtype,$uri); 15131: my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1); 15132: $$rtncode = $response->code; 15133: if (! $response->is_success()) { 15134: return 'failed'; 15135: } 15136: if ($reqtype eq 'HEAD') { 15137: $$info = &HTTP::Date::str2time( $response->header('Last-modified') ); 15138: } elsif ($reqtype eq 'GET') { 15139: $$info = $response->content; 15140: } 15141: return 'ok'; 15142: } 15143: 15144: sub readfile { 15145: my $file = shift; 15146: if ( (! -e $file ) || ($file eq '') ) { return -1; }; 15147: my $fh; 15148: open($fh,"<",$file); 15149: my $a=''; 15150: while (my $line = <$fh>) { $a .= $line; } 15151: return $a; 15152: } 15153: 15154: sub filelocation { 15155: my ($dir,$file) = @_; 15156: my $location; 15157: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces 15158: 15159: if ($file =~ m-^/adm/-) { 15160: $file=~s-^/adm/wrapper/-/-; 15161: $file=~s-^/adm/coursedocs/showdoc/-/-; 15162: } 15163: 15164: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) { 15165: $location = $file; 15166: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file 15167: my ($udom,$uname,$filename)= 15168: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-); 15169: my $home=&homeserver($uname,$udom); 15170: my $is_me=0; 15171: my @ids=&current_machine_ids(); 15172: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } } 15173: if ($is_me) { 15174: $location=propath($udom,$uname).'/userfiles/'.$filename; 15175: } else { 15176: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'. 15177: $udom.'/'.$uname.'/'.$filename; 15178: } 15179: } elsif ($file =~ m-^/adm/-) { 15180: $location = $perlvar{'lonDocRoot'}.'/'.$file; 15181: } else { 15182: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//; 15183: $file=~s:^/(res|priv)/:/:; 15184: my $space=$1; 15185: if ( !( $file =~ m:^/:) ) { 15186: $location = $dir. '/'.$file; 15187: } else { 15188: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file; 15189: } 15190: } 15191: $location=~s://+:/:g; # remove duplicate / 15192: while ($location=~m{/\.\./}) { 15193: if ($location =~ m{/[^/]+/\.\./}) { 15194: $location=~ s{/[^/]+/\.\./}{/}g; 15195: } else { 15196: $location=~ s{/\.\./}{/}g; 15197: } 15198: } #remove dir/.. 15199: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./ 15200: return $location; 15201: } 15202: 15203: sub hreflocation { 15204: my ($dir,$file)=@_; 15205: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) { 15206: $file=filelocation($dir,$file); 15207: } elsif ($file=~m-^/adm/-) { 15208: $file=~s-^/adm/wrapper/-/-; 15209: $file=~s-^/adm/coursedocs/showdoc/-/-; 15210: } 15211: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) { 15212: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--; 15213: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) { 15214: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/} 15215: {/uploaded/$1/$2/}x; 15216: } 15217: if ($file=~ m{^/userfiles/}) { 15218: $file =~ s{^/userfiles/}{/uploaded/}; 15219: } 15220: return $file; 15221: } 15222: 15223: 15224: 15225: 15226: 15227: sub current_machine_domains { 15228: return &machine_domains(&hostname($perlvar{'lonHostID'})); 15229: } 15230: 15231: sub machine_domains { 15232: my ($hostname) = @_; 15233: my @domains; 15234: my %hostname = &all_hostnames(); 15235: while( my($id, $name) = each(%hostname)) { 15236: # &logthis("-$id-$name-$hostname-"); 15237: if ($hostname eq $name) { 15238: push(@domains,&host_domain($id)); 15239: } 15240: } 15241: return @domains; 15242: } 15243: 15244: sub current_machine_ids { 15245: return &machine_ids(&hostname($perlvar{'lonHostID'})); 15246: } 15247: 15248: sub machine_ids { 15249: my ($hostname) = @_; 15250: $hostname ||= &hostname($perlvar{'lonHostID'}); 15251: my @ids; 15252: my %name_to_host = &all_names(); 15253: if (ref($name_to_host{$hostname}) eq 'ARRAY') { 15254: return @{ $name_to_host{$hostname} }; 15255: } 15256: return; 15257: } 15258: 15259: sub additional_machine_domains { 15260: my @domains; 15261: if (-e "$perlvar{'lonTabDir'}/expected_domains.tab") { 15262: if (open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab")) { 15263: while (my $line = <$fh>) { 15264: chomp($line); 15265: $line =~ s/\s//g; 15266: push(@domains,$line); 15267: } 15268: close($fh); 15269: } 15270: } 15271: return @domains; 15272: } 15273: 15274: sub default_login_domain { 15275: my $domain = $perlvar{'lonDefDomain'}; 15276: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0]; 15277: foreach my $posdom (&current_machine_domains(), 15278: &additional_machine_domains()) { 15279: if (lc($posdom) eq lc($testdomain)) { 15280: $domain=$posdom; 15281: last; 15282: } 15283: } 15284: return $domain; 15285: } 15286: 15287: sub shared_institution { 15288: my ($dom,$lonhost) = @_; 15289: if ($lonhost eq '') { 15290: $lonhost = $perlvar{'lonHostID'}; 15291: } 15292: my $same_intdom; 15293: my $hostintdom = &internet_dom($lonhost); 15294: if ($hostintdom ne '') { 15295: my %iphost = &get_iphost(); 15296: my $primary_id = &domain($dom,'primary'); 15297: my $primary_ip = &get_host_ip($primary_id); 15298: if (ref($iphost{$primary_ip}) eq 'ARRAY') { 15299: foreach my $id (@{$iphost{$primary_ip}}) { 15300: my $intdom = &internet_dom($id); 15301: if ($intdom eq $hostintdom) { 15302: $same_intdom = 1; 15303: last; 15304: } 15305: } 15306: } 15307: } 15308: return $same_intdom; 15309: } 15310: 15311: sub uses_sts { 15312: my ($ignore_cache) = @_; 15313: my $lonhost = $perlvar{'lonHostID'}; 15314: my $hostname = &hostname($lonhost); 15315: my $sts_on; 15316: if ($protocol{$lonhost} eq 'https') { 15317: my $cachetime = 12*3600; 15318: if (!$ignore_cache) { 15319: ($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost); 15320: if (defined($cached)) { 15321: return $sts_on; 15322: } 15323: } 15324: my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html'; 15325: my $request=new HTTP::Request('HEAD',$url); 15326: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1); 15327: if ($response->is_success) { 15328: my $has_sts = $response->header('Strict-Transport-Security'); 15329: if ($has_sts eq '') { 15330: $sts_on = 0; 15331: } else { 15332: if ($has_sts =~ /\Qmax-age=\E(\d+)/) { 15333: my $maxage = $1; 15334: if ($maxage) { 15335: $sts_on = 1; 15336: } else { 15337: $sts_on = 0; 15338: } 15339: } else { 15340: $sts_on = 0; 15341: } 15342: } 15343: return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime); 15344: } 15345: } 15346: return; 15347: } 15348: 15349: sub waf_allssl { 15350: my ($host_name) = @_; 15351: my $alias = &get_proxy_alias(); 15352: if ($host_name eq '') { 15353: $host_name = $ENV{'SERVER_NAME'}; 15354: } 15355: if (($host_name ne '') && ($alias eq $host_name)) { 15356: my $serverhomedom = &host_domain($perlvar{'lonHostID'}); 15357: my %defdomdefaults = &get_domain_defaults($serverhomedom); 15358: if ($defdomdefaults{'waf_sslopt'}) { 15359: return $defdomdefaults{'waf_sslopt'}; 15360: } 15361: } 15362: return; 15363: } 15364: 15365: sub get_requestor_ip { 15366: my ($r,$nolookup,$noproxy) = @_; 15367: my $from_ip; 15368: if (ref($r)) { 15369: if ($r->can('useragent_ip')) { 15370: if ($noproxy && $r->can('client_ip')) { 15371: $from_ip = $r->client_ip(); 15372: } else { 15373: $from_ip = $r->useragent_ip(); 15374: } 15375: } elsif ($r->connection->can('remote_ip')) { 15376: $from_ip = $r->connection->remote_ip(); 15377: } else { 15378: $from_ip = $r->get_remote_host($nolookup); 15379: } 15380: } else { 15381: $from_ip = $ENV{'REMOTE_ADDR'}; 15382: } 15383: return $from_ip if ($noproxy); 15384: # Who controls proxy settings for server 15385: my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'}; 15386: my $proxyinfo = &get_proxy_settings($dom_in_use); 15387: if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) { 15388: if ($proxyinfo->{'vpnint'}) { 15389: if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) { 15390: return $from_ip; 15391: } 15392: } 15393: if ($proxyinfo->{'trusted'}) { 15394: if (&ip_match($from_ip,$proxyinfo->{'trusted'})) { 15395: my $ipheader = $proxyinfo->{'ipheader'}; 15396: my ($ip,$xfor); 15397: if (ref($r)) { 15398: if ($ipheader) { 15399: $ip = $r->headers_in->{$ipheader}; 15400: } 15401: $xfor = $r->headers_in->{'X-Forwarded-For'}; 15402: } else { 15403: if ($ipheader) { 15404: $ip = $ENV{'HTTP_'.uc($ipheader)}; 15405: } 15406: $xfor = $ENV{'HTTP_X_FORWARDED_FOR'}; 15407: } 15408: if (($ip eq '') && ($xfor ne '')) { 15409: foreach my $poss_ip (reverse(split(/\s*,\s*/,$xfor))) { 15410: unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) { 15411: $ip = $poss_ip; 15412: last; 15413: } 15414: } 15415: } 15416: if ($ip ne '') { 15417: return $ip; 15418: } 15419: } 15420: } 15421: } 15422: return $from_ip; 15423: } 15424: 15425: sub get_proxy_settings { 15426: my ($dom_in_use) = @_; 15427: my %domdefaults = &get_domain_defaults($dom_in_use); 15428: my $proxyinfo = { 15429: ipheader => $domdefaults{'waf_ipheader'}, 15430: trusted => $domdefaults{'waf_trusted'}, 15431: vpnint => $domdefaults{'waf_vpnint'}, 15432: vpnext => $domdefaults{'waf_vpnext'}, 15433: sslopt => $domdefaults{'waf_sslopt'}, 15434: }; 15435: return $proxyinfo; 15436: } 15437: 15438: sub ip_match { 15439: my ($ip,$pattern_str) = @_; 15440: $ip=Net::CIDR::cidrvalidate($ip); 15441: if ($ip) { 15442: return Net::CIDR::cidrlookup($ip,split(/\s*,\s*/,$pattern_str)); 15443: } 15444: return; 15445: } 15446: 15447: sub get_proxy_alias { 15448: my ($lonid) = @_; 15449: if ($lonid eq '') { 15450: $lonid = $perlvar{'lonHostID'}; 15451: } 15452: if (!defined(&hostname($lonid))) { 15453: return; 15454: } 15455: if ($lonid ne '') { 15456: my ($alias,$cached) = &is_cached_new('proxyalias',$lonid); 15457: if ($cached) { 15458: return $alias; 15459: } 15460: my $dom = &host_domain($lonid); 15461: if ($dom ne '') { 15462: my $cachetime = 60*60*24; 15463: my %domconfig = 15464: &get_dom('configuration',['wafproxy'],$dom); 15465: if (ref($domconfig{'wafproxy'}) eq 'HASH') { 15466: if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') { 15467: $alias = $domconfig{'wafproxy'}{'alias'}{$lonid}; 15468: } 15469: } 15470: return &do_cache_new('proxyalias',$lonid,$alias,$cachetime); 15471: } 15472: } 15473: return; 15474: } 15475: 15476: sub use_proxy_alias { 15477: my ($r,$lonid) = @_; 15478: my $alias = &get_proxy_alias($lonid); 15479: if ($alias) { 15480: my $dom = &host_domain($lonid); 15481: if ($dom ne '') { 15482: my $proxyinfo = &get_proxy_settings($dom); 15483: my ($vpnint,$remote_ip); 15484: if (ref($proxyinfo) eq 'HASH') { 15485: $vpnint = $proxyinfo->{'vpnint'}; 15486: if ($vpnint) { 15487: $remote_ip = &get_requestor_ip($r,1,1); 15488: } 15489: } 15490: unless ($vpnint && &ip_match($remote_ip,$vpnint)) { 15491: return $alias; 15492: } 15493: } 15494: } 15495: return; 15496: } 15497: 15498: sub alias_sso { 15499: my ($lonid) = @_; 15500: if ($lonid eq '') { 15501: $lonid = $perlvar{'lonHostID'}; 15502: } 15503: if (!defined(&hostname($lonid))) { 15504: return; 15505: } 15506: if ($lonid ne '') { 15507: my ($use_alias,$cached) = &is_cached_new('proxysaml',$lonid); 15508: if ($cached) { 15509: return $use_alias; 15510: } 15511: my $dom = &host_domain($lonid); 15512: if ($dom ne '') { 15513: my $cachetime = 60*60*24; 15514: my %domconfig = 15515: &get_dom('configuration',['wafproxy'],$dom); 15516: if (ref($domconfig{'wafproxy'}) eq 'HASH') { 15517: if (ref($domconfig{'wafproxy'}{'saml'}) eq 'HASH') { 15518: $use_alias = $domconfig{'wafproxy'}{'saml'}{$lonid}; 15519: } 15520: } 15521: return &do_cache_new('proxysaml',$lonid,$use_alias,$cachetime); 15522: } 15523: } 15524: return; 15525: } 15526: 15527: sub get_saml_landing { 15528: my ($lonid) = @_; 15529: if ($lonid eq '') { 15530: my $defdom = &default_login_domain(); 15531: my @hosts = &current_machine_ids(); 15532: if (@hosts > 1) { 15533: foreach my $hostid (@hosts) { 15534: if (&host_domain($hostid) eq $defdom) { 15535: $lonid = $hostid; 15536: last; 15537: } 15538: } 15539: } else { 15540: $lonid = $perlvar{'lonHostID'}; 15541: } 15542: if ($lonid) { 15543: unless (&host_domain($lonid) eq $defdom) { 15544: return; 15545: } 15546: } else { 15547: return; 15548: } 15549: } elsif (!defined(&hostname($lonid))) { 15550: return; 15551: } 15552: my ($landing,$cached) = &is_cached_new('samllanding',$lonid); 15553: if ($cached) { 15554: return $landing; 15555: } 15556: my $dom = &host_domain($lonid); 15557: if ($dom ne '') { 15558: my $cachetime = 60*60*24; 15559: my %domconfig = 15560: &get_dom('configuration',['login'],$dom); 15561: if (ref($domconfig{'login'}) eq 'HASH') { 15562: if (ref($domconfig{'login'}{'saml'}) eq 'HASH') { 15563: if (ref($domconfig{'login'}{'saml'}{$lonid}) eq 'HASH') { 15564: $landing = 1; 15565: } 15566: } 15567: } 15568: return &do_cache_new('samllanding',$lonid,$landing,$cachetime); 15569: } 15570: return; 15571: } 15572: 15573: # ------------------------------------------------------------- Declutters URLs 15574: 15575: sub declutter { 15576: my $thisfn=shift; 15577: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } 15578: unless ($thisfn=~m{^/home/httpd/html/priv/}) { 15579: $thisfn=~s{^/home/httpd/html}{}; 15580: } 15581: $thisfn=~s/^\///; 15582: $thisfn=~s|^adm/wrapper/||; 15583: $thisfn=~s|^adm/coursedocs/showdoc/||; 15584: $thisfn=~s/^res\///; 15585: $thisfn=~s/^priv\///; 15586: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) { 15587: $thisfn=~s/\?.+$//; 15588: } 15589: return $thisfn; 15590: } 15591: 15592: # ------------------------------------------------------------- Clutter up URLs 15593: 15594: sub clutter { 15595: my $thisfn='/'.&declutter(shift); 15596: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/} 15597: || $thisfn =~ m{^/adm/(includes|pages)} ) { 15598: $thisfn='/res'.$thisfn; 15599: } 15600: if ($thisfn !~m|^/adm|) { 15601: if ($thisfn =~ m|^/ext/|) { 15602: $thisfn='/adm/wrapper'.$thisfn; 15603: } else { 15604: my ($ext) = ($thisfn =~ /\.(\w+)$/); 15605: my $embstyle=&Apache::loncommon::fileembstyle($ext); 15606: if ($embstyle eq 'ssi' 15607: || ($embstyle eq 'hdn') 15608: || ($embstyle eq 'rat') 15609: || ($embstyle eq 'prv') 15610: || ($embstyle eq 'ign')) { 15611: #do nothing with these 15612: } elsif (($embstyle eq 'img') 15613: || ($embstyle eq 'emb') 15614: || ($embstyle eq 'wrp')) { 15615: $thisfn='/adm/wrapper'.$thisfn; 15616: } elsif ($embstyle eq 'unk' 15617: && $thisfn!~/\.(sequence|page)$/) { 15618: $thisfn='/adm/coursedocs/showdoc'.$thisfn; 15619: } else { 15620: # &logthis("Got a blank emb style"); 15621: } 15622: } 15623: } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) { 15624: $thisfn='/adm/wrapper'.$thisfn; 15625: } 15626: return $thisfn; 15627: } 15628: 15629: sub clutter_with_no_wrapper { 15630: my $uri = &clutter(shift); 15631: if ($uri =~ m-^/adm/-) { 15632: $uri =~ s-^/adm/wrapper/-/-; 15633: $uri =~ s-^/adm/coursedocs/showdoc/-/-; 15634: } 15635: return $uri; 15636: } 15637: 15638: sub freeze_escape { 15639: my ($value)=@_; 15640: if (ref($value)) { 15641: $value=&nfreeze($value); 15642: return '__FROZEN__'.&escape($value); 15643: } 15644: return &escape($value); 15645: } 15646: 15647: 15648: sub thaw_unescape { 15649: my ($value)=@_; 15650: if ($value =~ /^__FROZEN__/) { 15651: substr($value,0,10,undef); 15652: $value=&unescape($value); 15653: return &thaw($value); 15654: } 15655: return &unescape($value); 15656: } 15657: 15658: sub correct_line_ends { 15659: my ($result)=@_; 15660: $$result =~s/\r\n/\n/mg; 15661: $$result =~s/\r/\n/mg; 15662: } 15663: # ================================================================ Main Program 15664: 15665: sub goodbye { 15666: &logthis("Starting Shut down"); 15667: #not converted to using infrastruture and probably shouldn't be 15668: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache)))); 15669: #converted 15670: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache))); 15671: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache)))); 15672: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache)))); 15673: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache)))); 15674: #1.1 only 15675: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache)))); 15676: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache)))); 15677: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache)))); 15678: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache)))); 15679: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered)))); 15680: &logthis(sprintf("%-20s is %s",'kicks',$kicks)); 15681: &logthis(sprintf("%-20s is %s",'hits',$hits)); 15682: &flushcourselogs(); 15683: &logthis("Shutting down"); 15684: } 15685: 15686: sub get_dns { 15687: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_; 15688: if (!$ignore_cache) { 15689: my ($content,$cached)= 15690: &is_cached_new('dns',$url); 15691: if ($cached) { 15692: &$func($content,$hashref); 15693: return; 15694: } 15695: } 15696: 15697: my %alldns; 15698: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) { 15699: foreach my $dns (<$config>) { 15700: next if ($dns !~ /^\^(\S*)/x); 15701: my $line = $1; 15702: my ($host,$protocol) = split(/:/,$line); 15703: if ($protocol ne 'https') { 15704: $protocol = 'http'; 15705: } 15706: $alldns{$host} = $protocol; 15707: } 15708: close($config); 15709: } 15710: while (%alldns) { 15711: my ($dns) = sort { $b cmp $a } keys(%alldns); 15712: my ($contents,@content); 15713: if ($dns eq Sys::Hostname::FQDN::fqdn()) { 15714: my $command = (split('/',$url))[3]; 15715: my ($dir,$file) = &parse_getdns_url($command,$url); 15716: delete($alldns{$dns}); 15717: next if (($dir eq '') || ($file eq '')); 15718: if (open(my $config,'<',"$dir/$file")) { 15719: @content = <$config>; 15720: close($config); 15721: } 15722: if ($url eq '/adm/dns/loncapaCRL') { 15723: $contents = join('',@content); 15724: } 15725: } else { 15726: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url"); 15727: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0); 15728: delete($alldns{$dns}); 15729: next if ($response->is_error()); 15730: if ($url eq '/adm/dns/loncapaCRL') { 15731: $contents = $response->content; 15732: } else { 15733: @content = split("\n",$response->content); 15734: } 15735: } 15736: if ($url eq '/adm/dns/loncapaCRL') { 15737: return &$func($contents); 15738: } else { 15739: unless ($nocache) { 15740: &do_cache_new('dns',$url,\@content,30*24*60*60); 15741: } 15742: &$func(\@content,$hashref); 15743: return; 15744: } 15745: } 15746: my $which = (split('/',$url,4))[3]; 15747: if ($which eq 'loncapaCRL') { 15748: my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; 15749: if (-e $diskfile) { 15750: &logthis("unable to contact DNS, on disk file $diskfile not updated"); 15751: } else { 15752: &logthis("unable to contact DNS, no on disk file $diskfile available"); 15753: } 15754: } else { 15755: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n"); 15756: if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) { 15757: my @content = <$config>; 15758: close($config); 15759: &$func(\@content,$hashref); 15760: } 15761: } 15762: return; 15763: } 15764: 15765: # ------------------------------------------------------Get DNS checksums file 15766: sub parse_dns_checksums_tab { 15767: my ($lines,$hashref) = @_; 15768: my $lonhost = $perlvar{'lonHostID'}; 15769: my $machine_dom = &host_domain($lonhost); 15770: my $loncaparev = &get_server_loncaparev($machine_dom); 15771: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; 15772: my $webconfdir = '/etc/httpd/conf'; 15773: if ($distro =~ /^(ubuntu|debian)(\d+)$/) { 15774: $webconfdir = '/etc/apache2'; 15775: } elsif ($distro =~ /^sles(\d+)$/) { 15776: if ($1 >= 10) { 15777: $webconfdir = '/etc/apache2'; 15778: } 15779: } elsif ($distro =~ /^suse(\d+\.\d+)$/) { 15780: if ($1 >= 10.0) { 15781: $webconfdir = '/etc/apache2'; 15782: } 15783: } 15784: my ($release,$timestamp) = split(/\-/,$loncaparev); 15785: my (%chksum,%revnum); 15786: if (ref($lines) eq 'ARRAY') { 15787: chomp(@{$lines}); 15788: my $version = shift(@{$lines}); 15789: if ($version eq $release) { 15790: foreach my $line (@{$lines}) { 15791: my ($file,$version,$shasum) = split(/,/,$line); 15792: if ($file =~ m{^/etc/httpd/conf}) { 15793: if ($webconfdir eq '/etc/apache2') { 15794: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/}; 15795: } 15796: } 15797: $chksum{$file} = $shasum; 15798: $revnum{$file} = $version; 15799: } 15800: if (ref($hashref) eq 'HASH') { 15801: %{$hashref} = ( 15802: sums => \%chksum, 15803: versions => \%revnum, 15804: ); 15805: } 15806: } 15807: } 15808: return; 15809: } 15810: 15811: sub fetch_dns_checksums { 15812: my %checksums; 15813: my $machine_dom = &host_domain($perlvar{'lonHostID'}); 15814: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'}); 15815: my ($release,$timestamp) = split(/\-/,$loncaparev); 15816: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1, 15817: \%checksums); 15818: return \%checksums; 15819: } 15820: 15821: sub fetch_crl_pemfile { 15822: return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1); 15823: } 15824: 15825: sub save_crl_pem { 15826: my ($content) = @_; 15827: my ($msg,$hadchanges); 15828: if ($content ne '') { 15829: my $now = time; 15830: my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'}; 15831: my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp'; 15832: if (open(my $fh,'>',"$tmpcrl")) { 15833: print $fh $content; 15834: close($fh); 15835: if (-e $lonca) { 15836: if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 |")) { 15837: my $check = <PIPE>; 15838: close(PIPE); 15839: chomp($check); 15840: if ($check eq 'verify OK') { 15841: my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; 15842: my $backup; 15843: if (-e $dest) { 15844: if (&File::Copy::move($dest,"$dest.bak")) { 15845: $backup = 'ok'; 15846: } 15847: } 15848: if (&File::Copy::move($tmpcrl,$dest)) { 15849: $msg = 'ok'; 15850: if ($backup) { 15851: my (%oldnums,%newnums); 15852: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak |grep 'Serial Number' |")) { 15853: while (<PIPE>) { 15854: $oldnums{(split(/:/))[1]} = 1; 15855: } 15856: close(PIPE); 15857: } 15858: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest |grep 'Serial Number' |")) { 15859: while(<PIPE>) { 15860: $newnums{(split(/:/))[1]} = 1; 15861: } 15862: close(PIPE); 15863: } 15864: foreach my $key (sort {$b <=> $a } (keys(%newnums))) { 15865: unless (exists($oldnums{$key})) { 15866: $hadchanges = 1; 15867: last; 15868: } 15869: } 15870: unless ($hadchanges) { 15871: foreach my $key (sort {$b <=> $a } (keys(%oldnums))) { 15872: unless (exists($newnums{$key})) { 15873: $hadchanges = 1; 15874: last; 15875: } 15876: } 15877: } 15878: } 15879: } 15880: } else { 15881: unlink($tmpcrl); 15882: } 15883: } else { 15884: unlink($tmpcrl); 15885: } 15886: } else { 15887: unlink($tmpcrl); 15888: } 15889: } 15890: } 15891: return ($msg,$hadchanges); 15892: } 15893: 15894: sub parse_getdns_url { 15895: my ($command,$url) = @_; 15896: my $dir = $perlvar{'lonTabDir'}; 15897: my $file; 15898: if ($command eq 'hosts') { 15899: $file = 'dns_hosts.tab'; 15900: } elsif ($command eq 'domain') { 15901: $file = 'dns_domain.tab'; 15902: } elsif ($command eq 'checksums') { 15903: my $version = (split('/',$url))[4]; 15904: $file = "dns_checksums/$version.tab", 15905: } elsif ($command eq 'loncapaCRL') { 15906: $dir = $perlvar{'lonCertificateDirectory'}; 15907: $file = $perlvar{'lonnetCertRevocationList'}; 15908: } 15909: return ($dir,$file); 15910: } 15911: 15912: # ------------------------------------------------------------ Read domain file 15913: { 15914: my $loaded; 15915: my %domain; 15916: 15917: sub parse_domain_tab { 15918: my ($lines) = @_; 15919: foreach my $line (@$lines) { 15920: next if ($line =~ /^(\#|\s*$ )/x); 15921: 15922: chomp($line); 15923: my ($name,@elements) = split(/:/,$line,9); 15924: my %this_domain; 15925: foreach my $field ('description', 'auth_def', 'auth_arg_def', 15926: 'lang_def', 'city', 'longi', 'lati', 15927: 'primary') { 15928: $this_domain{$field} = shift(@elements); 15929: } 15930: $domain{$name} = \%this_domain; 15931: } 15932: } 15933: 15934: sub reset_domain_info { 15935: undef($loaded); 15936: undef(%domain); 15937: } 15938: 15939: sub load_domain_tab { 15940: my ($ignore_cache,$nocache) = @_; 15941: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache); 15942: my $fh; 15943: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) { 15944: my @lines = <$fh>; 15945: &parse_domain_tab(\@lines); 15946: } 15947: close($fh); 15948: $loaded = 1; 15949: } 15950: 15951: sub domain { 15952: &load_domain_tab() if (!$loaded); 15953: 15954: my ($name,$what) = @_; 15955: return if ( !exists($domain{$name}) ); 15956: 15957: if (!$what) { 15958: return $domain{$name}{'description'}; 15959: } 15960: return $domain{$name}{$what}; 15961: } 15962: 15963: sub domain_info { 15964: &load_domain_tab() if (!$loaded); 15965: return %domain; 15966: } 15967: 15968: } 15969: 15970: 15971: # ------------------------------------------------------------- Read hosts file 15972: { 15973: my %hostname; 15974: my %hostdom; 15975: my %libserv; 15976: my $loaded; 15977: my %name_to_host; 15978: my %internetdom; 15979: my %LC_dns_serv; 15980: 15981: sub parse_hosts_tab { 15982: my ($file) = @_; 15983: foreach my $configline (@$file) { 15984: next if ($configline =~ /^(\#|\s*$ )/x); 15985: chomp($configline); 15986: if ($configline =~ /^\^/) { 15987: if ($configline =~ /^\^([\w.\-]+)/) { 15988: $LC_dns_serv{$1} = 1; 15989: } 15990: next; 15991: } 15992: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline); 15993: $name=~s/\s//g; 15994: if ($id && $domain && $role && $name) { 15995: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) { 15996: my $curr = $hostname{$id}; 15997: my $skip; 15998: if (ref($name_to_host{$curr}) eq 'ARRAY') { 15999: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) { 16000: $skip = 1; 16001: } else { 16002: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}}; 16003: } 16004: } 16005: unless ($skip) { 16006: push(@{$name_to_host{$name}},$id); 16007: } 16008: } else { 16009: push(@{$name_to_host{$name}},$id); 16010: } 16011: $hostname{$id}=$name; 16012: $hostdom{$id}=$domain; 16013: if ($role eq 'library') { $libserv{$id}=$name; } 16014: if (defined($protocol)) { 16015: if ($protocol eq 'https') { 16016: $protocol{$id} = $protocol; 16017: } else { 16018: $protocol{$id} = 'http'; 16019: } 16020: } else { 16021: $protocol{$id} = 'http'; 16022: } 16023: if (defined($intdom)) { 16024: $internetdom{$id} = $intdom; 16025: } 16026: } 16027: } 16028: } 16029: 16030: sub reset_hosts_info { 16031: &purge_remembered(); 16032: &reset_domain_info(); 16033: &reset_hosts_ip_info(); 16034: undef(%internetdom); 16035: undef(%name_to_host); 16036: undef(%hostname); 16037: undef(%hostdom); 16038: undef(%libserv); 16039: undef($loaded); 16040: } 16041: 16042: sub load_hosts_tab { 16043: my ($ignore_cache,$nocache) = @_; 16044: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache); 16045: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab"); 16046: my @config = <$config>; 16047: &parse_hosts_tab(\@config); 16048: close($config); 16049: $loaded=1; 16050: } 16051: 16052: sub hostname { 16053: &load_hosts_tab() if (!$loaded); 16054: 16055: my ($lonid) = @_; 16056: return $hostname{$lonid}; 16057: } 16058: 16059: sub all_hostnames { 16060: &load_hosts_tab() if (!$loaded); 16061: 16062: return %hostname; 16063: } 16064: 16065: sub all_names { 16066: my ($ignore_cache,$nocache) = @_; 16067: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded); 16068: 16069: return %name_to_host; 16070: } 16071: 16072: sub all_host_domain { 16073: &load_hosts_tab() if (!$loaded); 16074: return %hostdom; 16075: } 16076: 16077: sub all_host_intdom { 16078: &load_hosts_tab() if (!$loaded); 16079: return %internetdom; 16080: } 16081: 16082: sub is_library { 16083: &load_hosts_tab() if (!$loaded); 16084: 16085: return exists($libserv{$_[0]}); 16086: } 16087: 16088: sub all_library { 16089: &load_hosts_tab() if (!$loaded); 16090: 16091: return %libserv; 16092: } 16093: 16094: sub unique_library { 16095: #2x reverse removes all hostnames that appear more than once 16096: my %unique = reverse &all_library(); 16097: return reverse %unique; 16098: } 16099: 16100: sub get_servers { 16101: &load_hosts_tab() if (!$loaded); 16102: 16103: my ($domain,$type) = @_; 16104: my %possible_hosts = ($type eq 'library') ? %libserv 16105: : %hostname; 16106: my %result; 16107: if (ref($domain) eq 'ARRAY') { 16108: while ( my ($host,$hostname) = each(%possible_hosts)) { 16109: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) { 16110: $result{$host} = $hostname; 16111: } 16112: } 16113: } else { 16114: while ( my ($host,$hostname) = each(%possible_hosts)) { 16115: if ($hostdom{$host} eq $domain) { 16116: $result{$host} = $hostname; 16117: } 16118: } 16119: } 16120: return %result; 16121: } 16122: 16123: sub get_unique_servers { 16124: my %unique = reverse &get_servers(@_); 16125: return reverse %unique; 16126: } 16127: 16128: sub host_domain { 16129: &load_hosts_tab() if (!$loaded); 16130: 16131: my ($lonid) = @_; 16132: return $hostdom{$lonid}; 16133: } 16134: 16135: sub all_domains { 16136: &load_hosts_tab() if (!$loaded); 16137: 16138: my %seen; 16139: my @uniq = grep(!$seen{$_}++, values(%hostdom)); 16140: return @uniq; 16141: } 16142: 16143: sub internet_dom { 16144: &load_hosts_tab() if (!$loaded); 16145: 16146: my ($lonid) = @_; 16147: return $internetdom{$lonid}; 16148: } 16149: 16150: sub is_LC_dns { 16151: &load_hosts_tab() if (!$loaded); 16152: 16153: my ($hostname) = @_; 16154: return exists($LC_dns_serv{$hostname}); 16155: } 16156: 16157: } 16158: 16159: { 16160: my %iphost; 16161: my %name_to_ip; 16162: my %lonid_to_ip; 16163: 16164: sub get_hosts_from_ip { 16165: my ($ip) = @_; 16166: my %iphosts = &get_iphost(); 16167: if (ref($iphosts{$ip})) { 16168: return @{$iphosts{$ip}}; 16169: } 16170: return; 16171: } 16172: 16173: sub reset_hosts_ip_info { 16174: undef(%iphost); 16175: undef(%name_to_ip); 16176: undef(%lonid_to_ip); 16177: } 16178: 16179: sub get_host_ip { 16180: my ($lonid) = @_; 16181: if (exists($lonid_to_ip{$lonid})) { 16182: return $lonid_to_ip{$lonid}; 16183: } 16184: my $name=&hostname($lonid); 16185: my $ip = gethostbyname($name); 16186: return if (!$ip || length($ip) ne 4); 16187: $ip=inet_ntoa($ip); 16188: $name_to_ip{$name} = $ip; 16189: $lonid_to_ip{$lonid} = $ip; 16190: return $ip; 16191: } 16192: 16193: sub get_iphost { 16194: my ($ignore_cache,$nocache) = @_; 16195: 16196: if (!$ignore_cache) { 16197: if (%iphost) { 16198: return %iphost; 16199: } 16200: my ($ip_info,$cached)= 16201: &is_cached_new('iphost','iphost'); 16202: if ($cached) { 16203: %iphost = %{$ip_info->[0]}; 16204: %name_to_ip = %{$ip_info->[1]}; 16205: %lonid_to_ip = %{$ip_info->[2]}; 16206: return %iphost; 16207: } 16208: } 16209: 16210: # get yesterday's info for fallback 16211: my %old_name_to_ip; 16212: my ($ip_info,$cached)= 16213: &is_cached_new('iphost','iphost'); 16214: if ($cached) { 16215: %old_name_to_ip = %{$ip_info->[1]}; 16216: } 16217: 16218: my %name_to_host = &all_names($ignore_cache,$nocache); 16219: foreach my $name (keys(%name_to_host)) { 16220: my $ip; 16221: if (!exists($name_to_ip{$name})) { 16222: $ip = gethostbyname($name); 16223: if (!$ip || length($ip) ne 4) { 16224: if (defined($old_name_to_ip{$name})) { 16225: $ip = $old_name_to_ip{$name}; 16226: &logthis("Can't find $name defaulting to old $ip"); 16227: } else { 16228: &logthis("Name $name no IP found"); 16229: next; 16230: } 16231: } else { 16232: $ip=inet_ntoa($ip); 16233: } 16234: $name_to_ip{$name} = $ip; 16235: } else { 16236: $ip = $name_to_ip{$name}; 16237: } 16238: foreach my $id (@{ $name_to_host{$name} }) { 16239: $lonid_to_ip{$id} = $ip; 16240: } 16241: push(@{$iphost{$ip}},@{$name_to_host{$name}}); 16242: } 16243: unless ($nocache) { 16244: &do_cache_new('iphost','iphost', 16245: [\%iphost,\%name_to_ip,\%lonid_to_ip], 16246: 48*60*60); 16247: } 16248: 16249: return %iphost; 16250: } 16251: 16252: # 16253: # Given a DNS returns the loncapa host name for that DNS 16254: # 16255: sub host_from_dns { 16256: my ($dns) = @_; 16257: my @hosts; 16258: my $ip; 16259: 16260: if (exists($name_to_ip{$dns})) { 16261: $ip = $name_to_ip{$dns}; 16262: } 16263: if (!$ip) { 16264: $ip = gethostbyname($dns); # Initial translation to IP is in net order. 16265: if (length($ip) == 4) { 16266: $ip = &IO::Socket::inet_ntoa($ip); 16267: } 16268: } 16269: if ($ip) { 16270: @hosts = get_hosts_from_ip($ip); 16271: return $hosts[0]; 16272: } 16273: return undef; 16274: } 16275: 16276: sub get_internet_names { 16277: my ($lonid) = @_; 16278: return if ($lonid eq ''); 16279: my ($idnref,$cached)= 16280: &is_cached_new('internetnames',$lonid); 16281: if ($cached) { 16282: return $idnref; 16283: } 16284: my $ip = &get_host_ip($lonid); 16285: my @hosts = &get_hosts_from_ip($ip); 16286: my %iphost = &get_iphost(); 16287: my (@idns,%seen); 16288: foreach my $id (@hosts) { 16289: my $dom = &host_domain($id); 16290: my $prim_id = &domain($dom,'primary'); 16291: my $prim_ip = &get_host_ip($prim_id); 16292: next if ($seen{$prim_ip}); 16293: if (ref($iphost{$prim_ip}) eq 'ARRAY') { 16294: foreach my $id (@{$iphost{$prim_ip}}) { 16295: my $intdom = &internet_dom($id); 16296: unless (grep(/^\Q$intdom\E$/,@idns)) { 16297: push(@idns,$intdom); 16298: } 16299: } 16300: } 16301: $seen{$prim_ip} = 1; 16302: } 16303: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60); 16304: } 16305: 16306: } 16307: 16308: sub all_loncaparevs { 16309: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11); 16310: } 16311: 16312: # ---------------------------------------------------------- Read loncaparev table 16313: { 16314: sub load_loncaparevs { 16315: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") { 16316: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) { 16317: while (my $configline=<$config>) { 16318: chomp($configline); 16319: my ($hostid,$loncaparev)=split(/:/,$configline); 16320: $loncaparevs{$hostid}=$loncaparev; 16321: } 16322: close($config); 16323: } 16324: } 16325: } 16326: } 16327: 16328: # ---------------------------------------------------------- Read serverhostID table 16329: { 16330: sub load_serverhomeIDs { 16331: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") { 16332: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) { 16333: while (my $configline=<$config>) { 16334: chomp($configline); 16335: my ($name,$id)=split(/:/,$configline); 16336: $serverhomeIDs{$name}=$id; 16337: } 16338: close($config); 16339: } 16340: } 16341: } 16342: } 16343: 16344: 16345: BEGIN { 16346: 16347: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf 16348: unless ($readit) { 16349: { 16350: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf'); 16351: %perlvar = (%perlvar,%{$configvars}); 16352: } 16353: 16354: 16355: # ------------------------------------------------------ Read spare server file 16356: { 16357: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab"); 16358: 16359: while (my $configline=<$config>) { 16360: chomp($configline); 16361: if ($configline) { 16362: my ($host,$type) = split(':',$configline,2); 16363: if (!defined($type) || $type eq '') { $type = 'default' }; 16364: push(@{ $spareid{$type} }, $host); 16365: } 16366: } 16367: close($config); 16368: } 16369: # ------------------------------------------------------------ Read permissions 16370: { 16371: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab"); 16372: 16373: while (my $configline=<$config>) { 16374: chomp($configline); 16375: if ($configline) { 16376: my ($role,$perm)=split(/ /,$configline); 16377: if ($perm ne '') { $pr{$role}=$perm; } 16378: } 16379: } 16380: close($config); 16381: } 16382: 16383: # -------------------------------------------- Read plain texts for permissions 16384: { 16385: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab"); 16386: 16387: while (my $configline=<$config>) { 16388: chomp($configline); 16389: if ($configline) { 16390: my ($short,@plain)=split(/:/,$configline); 16391: %{$prp{$short}} = (); 16392: if (@plain > 0) { 16393: $prp{$short}{'std'} = $plain[0]; 16394: for (my $i=1; $i<@plain; $i++) { 16395: $prp{$short}{'alt'.$i} = $plain[$i]; 16396: } 16397: } 16398: } 16399: } 16400: close($config); 16401: } 16402: 16403: # ---------------------------------------------------------- Read package table 16404: { 16405: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab"); 16406: 16407: while (my $configline=<$config>) { 16408: if ($configline !~ /\S/ || $configline=~/^#/) { next; } 16409: chomp($configline); 16410: my ($short,$plain)=split(/:/,$configline); 16411: my ($pack,$name)=split(/\&/,$short); 16412: if ($plain ne '') { 16413: $packagetab{$pack.'&'.$name.'&name'}=$name; 16414: $packagetab{$short}=$plain; 16415: } 16416: } 16417: close($config); 16418: } 16419: 16420: # ---------------------------------------------------------- Read loncaparev table 16421: 16422: &load_loncaparevs(); 16423: 16424: # ---------------------------------------------------------- Read serverhostID table 16425: 16426: &load_serverhomeIDs(); 16427: 16428: # ---------------------------------------------------------- Read releaseslist XML 16429: { 16430: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml'; 16431: if (-e $file) { 16432: my $parser = HTML::LCParser->new($file); 16433: while (my $token = $parser->get_token()) { 16434: if ($token->[0] eq 'S') { 16435: my $item = $token->[1]; 16436: my $name = $token->[2]{'name'}; 16437: my $value = $token->[2]{'value'}; 16438: my $valuematch = $token->[2]{'valuematch'}; 16439: my $namematch = $token->[2]{'namematch'}; 16440: if ($item eq 'parameter') { 16441: if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) { 16442: my $release = $parser->get_text(); 16443: $release =~ s/(^\s*|\s*$ )//gx; 16444: $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release; 16445: } 16446: } elsif ($item ne '' && $name ne '') { 16447: my $release = $parser->get_text(); 16448: $release =~ s/(^\s*|\s*$ )//gx; 16449: $needsrelease{$item.':'.$name.':'.$value} = $release; 16450: } 16451: } 16452: } 16453: } 16454: } 16455: 16456: # ---------------------------------------------------------- Read managers table 16457: { 16458: if (-e "$perlvar{'lonTabDir'}/managers.tab") { 16459: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) { 16460: while (my $configline=<$config>) { 16461: chomp($configline); 16462: next if ($configline =~ /^\#/); 16463: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) { 16464: $managerstab{$configline} = 1; 16465: } 16466: } 16467: close($config); 16468: } 16469: } 16470: } 16471: 16472: # ------------- set up temporary directory 16473: { 16474: $tmpdir = LONCAPA::tempdir(); 16475: 16476: } 16477: 16478: # ------------- set default texengine (domain default overrides this) 16479: { 16480: $deftex = LONCAPA::texengine(); 16481: } 16482: 16483: # ------------- set default minimum length for passwords for internal auth users 16484: { 16485: $passwdmin = LONCAPA::passwd_min(); 16486: } 16487: 16488: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'], 16489: 'compress_threshold'=> 20_000, 16490: }); 16491: 16492: $processmarker='_'.time.'_'.$perlvar{'lonHostID'}; 16493: $dumpcount=0; 16494: $locknum=0; 16495: 16496: &logtouch(); 16497: &logthis('INFO: Read configuration'); 16498: $readit=1; 16499: { 16500: use integer; 16501: my $test=(2**32)+1; 16502: if ($test != 0) { $_64bit=1; } else { $_64bit=0; } 16503: &logthis(" Detected 64bit platform ($_64bit)"); 16504: } 16505: } 16506: } 16507: 16508: 1; 16509: __END__ 16510: 16511: =pod 16512: 16513: =head1 NAME 16514: 16515: Apache::lonnet - Subroutines to ask questions about things in the network. 16516: 16517: =head1 SYNOPSIS 16518: 16519: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network. 16520: 16521: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS); 16522: 16523: Common parameters: 16524: 16525: =over 4 16526: 16527: =item * 16528: 16529: $uname : an internal username (if $cname expecting a course Id specifically) 16530: 16531: =item * 16532: 16533: $udom : a domain (if $cdom expecting a course's domain specifically) 16534: 16535: =item * 16536: 16537: $symb : a resource instance identifier 16538: 16539: =item * 16540: 16541: $namespace : the name of a .db file that contains the data needed or 16542: being set. 16543: 16544: =back 16545: 16546: =head1 OVERVIEW 16547: 16548: lonnet provides subroutines which interact with the 16549: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask 16550: about classes, users, and resources. 16551: 16552: For many of these objects you can also use this to store data about 16553: them or modify them in various ways. 16554: 16555: =head2 Symbs 16556: 16557: To identify a specific instance of a resource, LON-CAPA uses symbols 16558: or "symbs"X<symb>. These identifiers are built from the URL of the 16559: map, the resource number of the resource in the map, and the URL of 16560: the resource itself. The latter is somewhat redundant, but might help 16561: if maps change. 16562: 16563: An example is 16564: 16565: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem 16566: 16567: The respective map entry is 16568: 16569: <resource id="19" src="/res/msu/korte/tests/part12.problem" 16570: title="Problem 2"> 16571: </resource> 16572: 16573: Symbs are used by the random number generator, as well as to store and 16574: restore data specific to a certain instance of for example a problem. 16575: 16576: =head2 Storing And Retrieving Data 16577: 16578: X<store()>X<cstore()>X<restore()>Three of the most important functions 16579: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>, 16580: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which 16581: is is the non-critical message twin of cstore. These functions are for 16582: handlers to store a perl hash to a user's permanent data space in an 16583: easy manner, and to retrieve it again on another call. It is expected 16584: that a handler would use this once at the beginning to retrieve data, 16585: and then again once at the end to send only the new data back. 16586: 16587: The data is stored in the user's data directory on the user's 16588: homeserver under the ID of the course. 16589: 16590: The hash that is returned by restore will have all of the previous 16591: value for all of the elements of the hash. 16592: 16593: Example: 16594: 16595: #creating a hash 16596: my %hash; 16597: $hash{'foo'}='bar'; 16598: 16599: #storing it 16600: &Apache::lonnet::cstore(\%hash); 16601: 16602: #changing a value 16603: $hash{'foo'}='notbar'; 16604: 16605: #adding a new value 16606: $hash{'bar'}='foo'; 16607: &Apache::lonnet::cstore(\%hash); 16608: 16609: #retrieving the hash 16610: my %history=&Apache::lonnet::restore(); 16611: 16612: #print the hash 16613: foreach my $key (sort(keys(%history))) { 16614: print("\%history{$key} = $history{$key}"); 16615: } 16616: 16617: Will print out: 16618: 16619: %history{1:foo} = bar 16620: %history{1:keys} = foo:timestamp 16621: %history{1:timestamp} = 990455579 16622: %history{2:bar} = foo 16623: %history{2:foo} = notbar 16624: %history{2:keys} = foo:bar:timestamp 16625: %history{2:timestamp} = 990455580 16626: %history{bar} = foo 16627: %history{foo} = notbar 16628: %history{timestamp} = 990455580 16629: %history{version} = 2 16630: 16631: Note that the special hash entries C<keys>, C<version> and 16632: C<timestamp> were added to the hash. C<version> will be equal to the 16633: total number of versions of the data that have been stored. The 16634: C<timestamp> attribute will be the UNIX time the hash was 16635: stored. C<keys> is available in every historical section to list which 16636: keys were added or changed at a specific historical revision of a 16637: hash. 16638: 16639: B<Warning>: do not store the hash that restore returns directly. This 16640: will cause a mess since it will restore the historical keys as if the 16641: were new keys. I.E. 1:foo will become 1:1:foo etc. 16642: 16643: Calling convention: 16644: 16645: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname); 16646: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore); 16647: 16648: For more detailed information, see lonnet specific documentation. 16649: 16650: =head1 RETURN MESSAGES 16651: 16652: =over 4 16653: 16654: =item * B<con_lost>: unable to contact remote host 16655: 16656: =item * B<con_delayed>: unable to contact remote host, message will be delivered 16657: when the connection is brought back up 16658: 16659: =item * B<con_failed>: unable to contact remote host and unable to save message 16660: for later delivery 16661: 16662: =item * B<error:>: an error a occurred, a description of the error follows the : 16663: 16664: =item * B<no_such_host>: unable to fund a host associated with the user/domain 16665: that was requested 16666: 16667: =back 16668: 16669: =head1 PUBLIC SUBROUTINES 16670: 16671: =head2 Session Environment Functions 16672: 16673: =over 4 16674: 16675: =item * 16676: X<appenv()> 16677: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to 16678: the user envirnoment file, and will be restored for each access this 16679: user makes during this session, also modifies the %env for the current 16680: process. Optional rolesarrayref - if defined contains a reference to an array 16681: of roles which are exempt from the restriction on modifying user.role entries 16682: in the user's environment.db and in %env. 16683: 16684: =item * 16685: X<delenv()> 16686: B<delenv($delthis,$regexp)>: removes all items from the session 16687: environment file that begin with $delthis. If the 16688: optional second arg - $regexp - is true, $delthis is treated as a 16689: regular expression, otherwise \Q$delthis\E is used. 16690: The values are also deleted from the current processes %env. 16691: 16692: =item * get_env_multiple($name) 16693: 16694: gets $name from the %env hash, it seemlessly handles the cases where multiple 16695: values may be defined and end up as an array ref. 16696: 16697: returns an array of values 16698: 16699: =back 16700: 16701: =head2 User Information 16702: 16703: =over 4 16704: 16705: =item * 16706: X<queryauthenticate()> 16707: B<queryauthenticate($uname,$udom)>: try to determine user's current 16708: authentication scheme 16709: 16710: =item * 16711: X<authenticate()> 16712: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to 16713: authenticate user from domain's lib servers (first use the current 16714: one). C<$upass> should be the users password. 16715: $checkdefauth is optional (value is 1 if a check should be made to 16716: authenticate user using default authentication method, and allow 16717: account creation if username does not have account in the domain). 16718: $clientcancheckhost is optional (value is 1 if checking whether the 16719: server can host will occur on the client side in lonauth.pm). 16720: 16721: =item * 16722: X<homeserver()> 16723: B<homeserver($uname,$udom)>: find the server which has 16724: the user's directory and files (there must be only one), this caches 16725: the answer, and also caches if there is a borken connection. 16726: 16727: =item * 16728: X<idget()> 16729: B<idget($udom,$idsref,$namespace)>: find the usernames behind either 16730: a list of student/employee IDs or clicker IDs 16731: (student/employee IDs are a unique resource in a domain, there must be 16732: only 1 ID per username, and only 1 username per ID in a specific domain). 16733: clickerIDs are not necessarily unique, as students might share clickers. 16734: (returns hash: id=>name,id=>name) 16735: 16736: =item * 16737: X<idrget()> 16738: B<idrget($udom,@unames)>: find the IDs behind a list of 16739: usernames (returns hash: name=>id,name=>id) 16740: 16741: =item * 16742: X<idput()> 16743: B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of 16744: names and associated student/employee IDs or clicker IDs. 16745: 16746: =item * 16747: X<iddel()> 16748: B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted 16749: student/employee ID or clicker ID username look-ups from domain. 16750: The homeserver ($uhome) and namespace ($namespace) are optional. 16751: If no $uhome is provided, it will be determined usig &homeserver() 16752: for each user. If no $namespace is provided, the default is ids. 16753: 16754: =item * 16755: X<updateclickers()> 16756: B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update 16757: clicker ID-to-username look-ups in clickers.db on library server. 16758: Permitted actions are add or del (i.e., add or delete). The 16759: clickers.db contains clickerID as keys (escaped), and each corresponding 16760: value is an escaped comma-separated list of usernames (for whom the 16761: library server is the homeserver), who registered that particular ID. 16762: If $critical is true, the update will be sent via &critical, otherwise 16763: &reply() will be used. 16764: 16765: =item * 16766: X<rolesinit()> 16767: B<rolesinit($udom,$username)>: get user privileges. 16768: returns user role, first access and timer interval hashes 16769: 16770: =item * 16771: X<privileged()> 16772: B<privileged($username,$domain)>: returns a true if user has a 16773: privileged and active role (i.e. su or dc), false otherwise. 16774: 16775: =item * 16776: X<getsection()> 16777: B<getsection($udom,$uname,$cname)>: finds the section of student in the 16778: course $cname, return section name/number or '' for "not in course" 16779: and '-1' for "no section" 16780: 16781: =item * 16782: X<userenvironment()> 16783: B<userenvironment($udom,$uname,@what)>: gets the values of the keys 16784: passed in @what from the requested user's environment, returns a hash 16785: 16786: =item * 16787: X<userlog_query()> 16788: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's 16789: activity.log file. %filters defines filters applied when parsing the 16790: log file. These can be start or end timestamps, or the type of action 16791: - log to look for Login or Logout events, check for Checkin or 16792: Checkout, role for role selection. The response is in the form 16793: timestamp1:hostid1:event1&timestamp2:hostid2:event2 where events are 16794: escaped strings of the action recorded in the activity.log file. 16795: 16796: =back 16797: 16798: =head2 User Roles 16799: 16800: =over 4 16801: 16802: =item * 16803: 16804: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege; 16805: returns codes for allowed actions. 16806: 16807: The first argument is required, all others are optional. 16808: 16809: $priv is the privilege being checked. 16810: $uri contains additional information about what is being checked for access (e.g., 16811: URL, course ID etc.). 16812: $symb is the unique resource instance identifier in a course; if needed, 16813: but not provided, it will be retrieved via a call to &symbread(). 16814: $role is the role for which a priv is being checked (only used if priv is evb). 16815: $clientip is the user's IP address (only used when checking for access to portfolio 16816: files). 16817: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This 16818: prevents recursive calls to &allowed. 16819: 16820: F: full access 16821: U,I,K: authentication modes (cxx only) 16822: '': forbidden 16823: 1: user needs to choose course 16824: 2: browse allowed 16825: A: passphrase authentication needed 16826: B: access temporarily blocked because of a blocking event in a course. 16827: D: access blocked because access is required via session initiated via deep-link 16828: 16829: =item * 16830: 16831: constructaccess($url,$setpriv) : check for access to construction space URL 16832: 16833: See if the owner domain and name in the URL match those in the 16834: expected environment. If so, return three element list 16835: ($ownername,$ownerdomain,$ownerhome). 16836: 16837: Otherwise return the null string. 16838: 16839: If second argument 'setpriv' is true, it assigns the privileges, 16840: and returns the same three element list, unless the owner has 16841: blocked "ad hoc" Domain Coordinator access to the Author Space, 16842: in which case the null string is returned. 16843: 16844: =item * 16845: 16846: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role; 16847: define a custom role rolename set privileges in format of lonTabs/roles.tab 16848: for system, domain, and course level. $uname and $udom are optional (current 16849: user's username and domain will be used when either of $uname or $udom are absent. 16850: 16851: =item * 16852: 16853: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash 16854: (rolesplain.tab); plain text explanation of a user role term. 16855: $type is Course (default) or Community. 16856: If $forcedefault evaluates to true, text returned will be default 16857: text for $type. Otherwise, if this is a course, the text returned 16858: will be a custom name for the role (if defined in the course's 16859: environment). If no custom name is defined the default is returned. 16860: 16861: =item * 16862: 16863: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) : 16864: All arguments are optional. Returns a hash of a roles, either for 16865: co-author/assistant author roles for a user's Construction Space 16866: (default), or if $context is 'userroles', roles for the user himself, 16867: In the hash, keys are set to colon-separated $uname,$udom,$role, and 16868: (optionally) if $withsec is true, a fourth colon-separated item - $section. 16869: For each key, value is set to colon-separated start and end times for 16870: the role. If no username and domain are specified, will default to 16871: current user/domain. Types, roles, and roledoms are references to arrays 16872: of role statuses (active, future or previous), roles 16873: (e.g., cc,in, st etc.) and domains of the roles which can be used 16874: to restrict the list of roles reported. If no array ref is 16875: provided for types, will default to return only active roles. 16876: 16877: =item * 16878: 16879: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if 16880: user: $uname:$udom has a role in the course: $cdom_$cnum. 16881: 16882: Additional optional arguments are: $type (if role checking is to be restricted 16883: to certain user status types -- previous (expired roles), active (currently 16884: available roles) or future (roles available in the future), and 16885: $hideprivileged -- if true will not report course roles for users who 16886: have active Domain Coordinator role in course's domain or in additional 16887: domains (specified in 'Domains to check for privileged users' in course 16888: environment -- set via: Course Settings -> Classlists and staff listing). 16889: 16890: =item * 16891: 16892: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user 16893: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User) 16894: $possdomains and $possroles are optional array refs -- to domains to check and 16895: roles to check. If $possdomains is not specified, a dump will be done of the 16896: users' roles.db to check for a dc or su role in any domain. This can be 16897: time consuming if &privileged is called repeatedly (e.g., when displaying a 16898: classlist), so in such cases, supplying a $possdomains array is preferred, as 16899: this then allows &privileged_by_domain() to be used, which caches the identity 16900: of privileged users, eliminating the need for repeated calls to &dump(). 16901: 16902: =item * 16903: 16904: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash, 16905: where the outer hash keys are domains specified in the $possdomains array ref, 16906: next inner hash keys are privileged roles specified in the $roles array ref, 16907: and the innermost hash contains key = value pairs for username:domain = end:start 16908: for active or future "privileged" users with that role in that domain. To avoid 16909: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the 16910: innerhash are cached using priv_$role and $dom as the identifiers. 16911: 16912: =back 16913: 16914: =head2 User Modification 16915: 16916: =over 4 16917: 16918: =item * 16919: 16920: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a 16921: user for the level given by URL. Optional start and end dates (leave empty 16922: string or zero for "no date") 16923: 16924: =item * 16925: 16926: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to 16927: change a users, password, possible return values are: ok, 16928: pwchange_failure, non_authorized, auth_mode_error, unknown_user, 16929: refused 16930: 16931: =item * 16932: 16933: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication 16934: 16935: =item * 16936: 16937: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene, 16938: $forceid,$desiredhome,$email,$inststatus,$candelete) : 16939: 16940: will update user information (firstname,middlename,lastname,generation, 16941: permanentemail), and if forceid is true, student/employee ID also. 16942: A user's institutional affiliation(s) can also be updated. 16943: User information fields will not be overwritten with empty entries 16944: unless the field is included in the $candelete array reference. 16945: This array is included when a single user is modified via "Manage Users", 16946: or when Autoupdate.pl is run by cron in a domain. 16947: 16948: =item * 16949: 16950: modifystudent 16951: 16952: modify a student's enrollment and identification information. 16953: The course id is resolved based on the current user's environment. 16954: This means the invoking user must be a course coordinator or otherwise 16955: associated with a course. 16956: 16957: This call is essentially a wrapper for lonnet::modifyuser and 16958: lonnet::modify_student_enrollment 16959: 16960: Inputs: 16961: 16962: =over 4 16963: 16964: =item B<$udom> Student's loncapa domain 16965: 16966: =item B<$uname> Student's loncapa login name 16967: 16968: =item B<$uid> Student/Employee ID 16969: 16970: =item B<$umode> Student's authentication mode 16971: 16972: =item B<$upass> Student's password 16973: 16974: =item B<$first> Student's first name 16975: 16976: =item B<$middle> Student's middle name 16977: 16978: =item B<$last> Student's last name 16979: 16980: =item B<$gene> Student's generation 16981: 16982: =item B<$usec> Student's section in course 16983: 16984: =item B<$end> Unix time of the roles expiration 16985: 16986: =item B<$start> Unix time of the roles start date 16987: 16988: =item B<$forceid> If defined, allow $uid to be changed 16989: 16990: =item B<$desiredhome> server to use as home server for student 16991: 16992: =item B<$email> Student's permanent e-mail address 16993: 16994: =item B<$type> Type of enrollment (auto or manual) 16995: 16996: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto 16997: 16998: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC 16999: 17000: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment 17001: 17002: =item B<$context> role change context (shown in User Management Logs display in a course) 17003: 17004: =item B<$inststatus> institutional status of user - : separated string of escaped status types 17005: 17006: =item B<$credits> Number of credits student will earn from this class - only needs to be supplied if value needs to be different from default credits for class. 17007: 17008: =back 17009: 17010: =item * 17011: 17012: modify_student_enrollment 17013: 17014: Change a student's enrollment status in a class. The environment variable 17015: 'role.request.course' must be defined for this function to proceed. 17016: 17017: Inputs: 17018: 17019: =over 4 17020: 17021: =item $udom, student's domain 17022: 17023: =item $uname, student's name 17024: 17025: =item $uid, student's user id 17026: 17027: =item $first, student's first name 17028: 17029: =item $middle 17030: 17031: =item $last 17032: 17033: =item $gene 17034: 17035: =item $usec 17036: 17037: =item $end 17038: 17039: =item $start 17040: 17041: =item $type 17042: 17043: =item $locktype 17044: 17045: =item $cid 17046: 17047: =item $selfenroll 17048: 17049: =item $context 17050: 17051: =item $credits, number of credits student will earn from this class 17052: 17053: =item $instsec, institutional course section code for student 17054: 17055: =back 17056: 17057: 17058: =item * 17059: 17060: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign 17061: custom role; give a custom role to a user for the level given by URL. Specify 17062: name and domain of role author, and role name 17063: 17064: =item * 17065: 17066: revokerole($udom,$uname,$url,$role) : revoke a role for url 17067: 17068: =item * 17069: 17070: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role 17071: 17072: =back 17073: 17074: =head2 Course Infomation 17075: 17076: =over 4 17077: 17078: =item * 17079: 17080: coursedescription($courseid,$options) : returns a hash of information about the 17081: specified course id, including all environment settings for the 17082: course, the description of the course will be in the hash under the 17083: key 'description' 17084: 17085: $options is an optional parameter that if supplied is a hash reference that controls 17086: what how this function works. It has the following key/values: 17087: 17088: =over 4 17089: 17090: =item freshen_cache 17091: 17092: If defined, and the environment cache for the course is valid, it is 17093: returned in the returned hash. 17094: 17095: =item one_time 17096: 17097: If defined, the last cache time is set to _now_ 17098: 17099: =item user 17100: 17101: If defined, the supplied username is used instead of the current user. 17102: 17103: 17104: =back 17105: 17106: =item * 17107: 17108: resdata($name,$domain,$type,@which) : request for current parameter 17109: setting for a specific $type, where $type is either 'course' or 'user', 17110: @what should be a list of parameters to ask about. This routine caches 17111: answers for 10 minutes. 17112: 17113: =item * 17114: 17115: get_courseresdata($courseid, $domain) : dump the entire course resource 17116: data base, returning a hash that is keyed by the resource name and has 17117: values that are the resource value. I believe that the timestamps and 17118: versions are also returned. 17119: 17120: =back 17121: 17122: =head2 Course Modification 17123: 17124: =over 4 17125: 17126: =item * 17127: 17128: writecoursepref($courseid,%prefs) : write preferences (environment 17129: database) for a course 17130: 17131: =item * 17132: 17133: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course 17134: 17135: =item * 17136: 17137: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community). 17138: 17139: =item * 17140: 17141: is_course($courseid), is_course($cdom, $cnum) 17142: 17143: Accepts either a combined $courseid (in the form of domain_courseid) or the 17144: two component version $cdom, $cnum. It checks if the specified course exists. 17145: 17146: Returns: 17147: undef if the course doesn't exist, otherwise 17148: in scalar context the combined courseid. 17149: in list context the two components of the course identifier, domain and 17150: courseid. 17151: 17152: =back 17153: 17154: =head2 Bubblesheet Configuration 17155: 17156: =over 4 17157: 17158: =item * 17159: 17160: get_scantron_config($which) 17161: 17162: $which - the name of the configuration to parse from the file. 17163: 17164: Parses and returns the bubblesheet configuration line selected as a 17165: hash of configuration file fields. 17166: 17167: 17168: Returns: 17169: If the named configuration is not in the file, an empty 17170: hash is returned. 17171: 17172: a hash with the fields 17173: name - internal name for the this configuration setup 17174: description - text to display to operator that describes this config 17175: CODElocation - if 0 or the string 'none' 17176: - no CODE exists for this config 17177: if -1 || the string 'letter' 17178: - a CODE exists for this config and is 17179: a string of letters 17180: Unsupported value (but planned for future support) 17181: if a positive integer 17182: - The CODE exists as the first n items from 17183: the question section of the form 17184: if the string 'number' 17185: - The CODE exists for this config and is 17186: a string of numbers 17187: CODEstart - (only matter if a CODE exists) column in the line where 17188: the CODE starts 17189: CODElength - length of the CODE 17190: IDstart - column where the student/employee ID starts 17191: IDlength - length of the student/employee ID info 17192: Qstart - column where the information from the bubbled 17193: 'questions' start 17194: Qlength - number of columns comprising a single bubble line from 17195: the sheet. (usually either 1 or 10) 17196: Qon - either a single character representing the character used 17197: to signal a bubble was chosen in the positional setup, or 17198: the string 'letter' if the letter of the chosen bubble is 17199: in the final, or 'number' if a number representing the 17200: chosen bubble is in the file (1->A 0->J) 17201: Qoff - the character used to represent that a bubble was 17202: left blank 17203: PaperID - if the scanning process generates a unique number for each 17204: sheet scanned the column that this ID number starts in 17205: PaperIDlength - number of columns that comprise the unique ID number 17206: for the sheet of paper 17207: FirstName - column that the first name starts in 17208: FirstNameLength - number of columns that the first name spans 17209: LastName - column that the last name starts in 17210: LastNameLength - number of columns that the last name spans 17211: BubblesPerRow - number of bubbles available in each row used to 17212: bubble an answer. (If not specified, 10 assumed). 17213: 17214: 17215: =item * 17216: 17217: get_scantronformat_file($cdom) 17218: 17219: $cdom - the course's domain (optional); if not supplied, uses 17220: domain for current $env{'request.course.id'}. 17221: 17222: Returns an array containing lines from the scantron format file for 17223: the domain of the course. 17224: 17225: If a url for a custom.tab file is listed in domain's configuration.db, 17226: lines are from this file. 17227: 17228: Otherwise, if a default.tab has been published in RES space by the 17229: domainconfig user, lines are from this file. 17230: 17231: Otherwise, fall back to getting lines from the legacy file on the 17232: local server: /home/httpd/lonTabs/default_scantronformat.tab 17233: 17234: =back 17235: 17236: =head2 Resource Subroutines 17237: 17238: =over 4 17239: 17240: =item * 17241: 17242: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead) 17243: 17244: =item * 17245: 17246: repcopy($filename) : subscribes to the requested file, and attempts to 17247: replicate from the owning library server, Might return 17248: 'unavailable', 'not_found', 'forbidden', 'ok', or 17249: 'bad_request', also attempts to grab the metadata for the 17250: resource. Expects the local filesystem pathname 17251: (/home/httpd/html/res/....) 17252: 17253: =back 17254: 17255: =head2 Resource Information 17256: 17257: =over 4 17258: 17259: =item * 17260: 17261: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates 17262: and returns the value of a variety of different possible values, 17263: $varname should be a request string, and the other parameters can be 17264: used to specify who and what one is asking about. Ordinarily, $cid 17265: does not need to be specified, as it is retrived from 17266: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called 17267: within lonuserstate::loadmap() when initializing a course, before 17268: $env{'request.course.id'} has been set, so it needs to be provided 17269: in that one case. 17270: 17271: Possible values for $varname are environment.lastname (or other item 17272: from the envirnment hash), user.name (or someother aspect about the 17273: user), resource.0.maxtries (or some other part and parameter of a 17274: resource) 17275: 17276: =item * 17277: 17278: directcondval($number) : get current value of a condition; reads from a state 17279: string 17280: 17281: =item * 17282: 17283: condval($condidx) : value of condition index based on state 17284: 17285: =item * 17286: 17287: metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a 17288: resource's metadata, $what should be either a specific key, or either 17289: 'keys' (to get a list of possible keys) or 'packages' to get a list of 17290: packages that this resource currently uses, the last 3 arguments are 17291: only used internally for recursive metadata. 17292: 17293: the toolsymb is only used where the uri is for an external tool (for which 17294: the uri as well as the symb are guaranteed to be unique). 17295: 17296: this function automatically caches all requests except any made recursively 17297: to retrieve a list of metadata keys for an imported library file ($liburi is 17298: defined). 17299: 17300: =item * 17301: 17302: metadata_query($query,$custom,$customshow) : make a metadata query against the 17303: network of library servers; returns file handle of where SQL and regex results 17304: will be stored for query 17305: 17306: =item * 17307: 17308: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) : 17309: return symbolic list entry (all arguments optional). 17310: 17311: Args: filename is the filename (including path) for the file for which a symb 17312: is required; donotrecurse, if true will prevent calls to allowed() being made 17313: to check access status if more than one resource was found in the bighash 17314: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of 17315: a randompick); ignorecachednull, if true will prevent a symb of '' being 17316: returned if $env{$cache_str} is defined as ''; checkforblock if true will 17317: cause possible symbs to be checked to determine if they are subject to content 17318: blocking, if so they will not be included as possible symbs; possibles is a 17319: ref to a hash, which, as a side effect, will be populated with all possible 17320: symbs (content blocking not tested). 17321: 17322: returns the data handle 17323: 17324: =item * 17325: 17326: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists 17327: and is a possible symb for the URL in $thisfn, and if is an encrypted 17328: resource that the user accessed using /enc/ returns a 1 on success, 0 17329: on failure, user must be in a course, as it assumes the existence of 17330: the course initial hash, and uses $env('request.course.id'}. The third 17331: arg is an optional reference to a scalar. If this arg is passed in the 17332: call to symbverify, it will be set to 1 if the symb has been set to be 17333: encrypted; otherwise it will be null. 17334: 17335: =item * 17336: 17337: symbclean($symb) : removes versions numbers from a symb, returns the 17338: cleaned symb 17339: 17340: =item * 17341: 17342: is_on_map($uri) : checks if the $uri is somewhere on the current 17343: course map, user must be in a course for it to work. 17344: 17345: =item * 17346: 17347: numval($salt) : return random seed value (addend for rndseed) 17348: 17349: =item * 17350: 17351: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns 17352: a random seed, all arguments are optional, if they aren't sent it uses the 17353: environment to derive them. Note: if symb isn't sent and it can't get one 17354: from &symbread it will use the current time as its return value 17355: 17356: =item * 17357: 17358: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique, 17359: unfakeable, receipt 17360: 17361: =item * 17362: 17363: receipt() : API to ireceipt working off of env values; given out to users 17364: 17365: =item * 17366: 17367: countacc($url) : count the number of accesses to a given URL 17368: 17369: =item * 17370: 17371: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource 17372: 17373: =item * 17374: 17375: checkin($token) : updates that a resource has beeen returned (a hard copy version for instance) and returns the data that $token was Checkout with ($symb, $tuname, $tudom, and $tcrsid) 17376: 17377: =item * 17378: 17379: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet 17380: 17381: =item * 17382: 17383: devalidate($symb) : devalidate temporary spreadsheet calculations, 17384: forcing spreadsheet to reevaluate the resource scores next time. 17385: 17386: =item * 17387: 17388: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource, 17389: when viewing in course context. 17390: 17391: input: six args -- filename (decluttered), course number, course domain, 17392: url, symb (if registered) and group (if this is a 17393: group item -- e.g., bulletin board, group page etc.). 17394: 17395: output: array of five scalars -- 17396: $cfile -- url for file editing if editable on current server 17397: $home -- homeserver of resource (i.e., for author if published, 17398: or course if uploaded.). 17399: $switchserver -- 1 if server switch will be needed. 17400: $forceedit -- 1 if icon/link should be to go to edit mode 17401: $forceview -- 1 if icon/link should be to go to view mode 17402: 17403: =item * 17404: 17405: is_course_upload($file,$cnum,$cdom) 17406: 17407: Used in course context to determine if current file was uploaded to 17408: the course (i.e., would be found in /userfiles/docs on the course's 17409: homeserver. 17410: 17411: input: 3 args -- filename (decluttered), course number and course domain. 17412: output: boolean -- 1 if file was uploaded. 17413: 17414: =back 17415: 17416: =head2 Storing/Retreiving Data 17417: 17418: =over 4 17419: 17420: =item * 17421: 17422: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash 17423: permanently for this url; hashref needs to be given and should be a \%hashname; 17424: the remaining args aren't required and if they aren't passed or are '' they will 17425: be derived from the env (with the exception of $laststore, which is an 17426: optional arg used when a user's submission is stored in grading). 17427: $laststore is $version=$timestamp, where $version is the most recent version 17428: number retrieved for the corresponding $symb in the $namespace db file, and 17429: $timestamp is the timestamp for that transaction (UNIX time). 17430: $laststore is currently only passed when cstore() is called by 17431: structuretags::finalize_storage(). 17432: 17433: =item * 17434: 17435: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store 17436: but uses critical subroutine 17437: 17438: =item * 17439: 17440: restore($symb,$namespace,$udom,$uname) : returns hash for this symb; 17441: all args are optional 17442: 17443: =item * 17444: 17445: dumpstore($namespace,$udom,$uname,$regexp,$range) : 17446: dumps the complete (or key matching regexp) namespace into a hash 17447: ($udom, $uname, $regexp, $range are optional) for a namespace that is 17448: normally &store()ed into 17449: 17450: $range should be either an integer '100' (give me the first 100 17451: matching records) 17452: or be two integers sperated by a - with no spaces 17453: '30-50' (give me the 30th through the 50th matching 17454: records) 17455: 17456: 17457: =item * 17458: 17459: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) : 17460: replaces a &store() version of data with a replacement set of data 17461: for a particular resource in a namespace passed in the $storehash hash 17462: reference. If $tolog is true, the transaction is logged in the courselog 17463: with an action=PUTSTORE. 17464: 17465: =item * 17466: 17467: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that 17468: works very similar to store/cstore, but all data is stored in a 17469: temporary location and can be reset using tmpreset, $storehash should 17470: be a hash reference, returns nothing on success 17471: 17472: =item * 17473: 17474: tmprestore($symb,$namespace,$udom,$uname) : storage that works very 17475: similar to restore, but all data is stored in a temporary location and 17476: can be reset using tmpreset. Returns a hash of values on success, 17477: error string otherwise. 17478: 17479: =item * 17480: 17481: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset, 17482: deltes all keys for $symb form the temporary storage hash. 17483: 17484: =item * 17485: 17486: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array 17487: reference filled in from namesp ($udom and $uname are optional) 17488: 17489: =item * 17490: 17491: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from 17492: namesp ($udom and $uname are optional) 17493: 17494: =item * 17495: 17496: dump($namespace,$udom,$uname,$regexp,$range) : 17497: dumps the complete (or key matching regexp) namespace into a hash 17498: ($udom, $uname, $regexp, $range are optional) 17499: 17500: $range should be either an integer '100' (give me the first 100 17501: matching records) 17502: or be two integers sperated by a - with no spaces 17503: '30-50' (give me the 30th through the 50th matching 17504: records) 17505: =item * 17506: 17507: inc($namespace,$store,$udom,$uname) : increments $store in $namespace. 17508: $store can be a scalar, an array reference, or if the amount to be 17509: incremented is > 1, a hash reference. 17510: 17511: ($udom and $uname are optional) 17512: 17513: =item * 17514: 17515: put($namespace,$storehash,$udom,$uname) : stores hash in namesp 17516: ($udom and $uname are optional) 17517: 17518: =item * 17519: 17520: cput($namespace,$storehash,$udom,$uname) : critical put 17521: ($udom and $uname are optional) 17522: 17523: =item * 17524: 17525: newput($namespace,$storehash,$udom,$uname) : 17526: 17527: Attempts to store the items in the $storehash, but only if they don't 17528: currently exist, if this succeeds you can be certain that you have 17529: successfully created a new key value pair in the $namespace db. 17530: 17531: 17532: Args: 17533: $namespace: name of database to store values to 17534: $storehash: hashref to store to the db 17535: $udom: (optional) domain of user containing the db 17536: $uname: (optional) name of user caontaining the db 17537: 17538: Returns: 17539: 'ok' -> succeeded in storing all keys of $storehash 17540: 'key_exists: <key>' -> failed to anything out of $storehash, as at 17541: least <key> already existed in the db (other 17542: requested keys may also already exist) 17543: 'error: <msg>' -> unable to tie the DB or other error occurred 17544: 'con_lost' -> unable to contact request server 17545: 'refused' -> action was not allowed by remote machine 17546: 17547: 17548: =item * 17549: 17550: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array 17551: reference filled in from namesp (encrypts the return communication) 17552: ($udom and $uname are optional) 17553: 17554: =item * 17555: 17556: log($udom,$name,$home,$message) : write to permanent log for user; use 17557: critical subroutine 17558: 17559: =item * 17560: 17561: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from 17562: array reference filled in from namespace found in domain level on either 17563: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional). 17564: 17565: =item * 17566: 17567: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at 17568: domain level either on specified domain server ($uhome) or primary domain 17569: server ($udom and $uhome are optional) 17570: 17571: =item * 17572: 17573: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults 17574: for: authentication, language, quotas, timezone, date locale, and portal URL in 17575: the target domain. 17576: 17577: May also include additional key => value pairs for the following groups: 17578: 17579: =over 17580: 17581: =item 17582: disk quotas (MB allocated by default to portfolios and authoring spaces). 17583: 17584: =over 17585: 17586: =item defaultquota, authorquota 17587: 17588: =back 17589: 17590: =item 17591: tools (availability of aboutme page, blog, webDAV access for authoring spaces, 17592: portfolio for users). 17593: 17594: =over 17595: 17596: =item 17597: aboutme, blog, webdav, portfolio 17598: 17599: =back 17600: 17601: =item 17602: requestcourses: ability to request courses, and how requests are processed. 17603: 17604: =over 17605: 17606: =item 17607: official, unofficial, community, textbook, placement 17608: 17609: =back 17610: 17611: =item 17612: inststatus: types of institutional affiliation, and order in which they are displayed. 17613: 17614: =over 17615: 17616: =item 17617: inststatustypes, inststatusorder, inststatusguest 17618: 17619: =back 17620: 17621: =item 17622: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB) 17623: for course's uploaded content. 17624: 17625: =over 17626: 17627: =item 17628: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota, 17629: communityquota, textbookquota, placementquota 17630: 17631: =back 17632: 17633: =item 17634: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains 17635: on your servers. 17636: 17637: =over 17638: 17639: =item 17640: remotesessions, hostedsessions 17641: 17642: =back 17643: 17644: =back 17645: 17646: In cases where a domain coordinator has never used the "Set Domain Configuration" 17647: utility to create a configuration.db file on a domain's primary library server 17648: only the following domain defaults: auth_def, auth_arg_def, lang_def 17649: -- corresponding values are authentication type (internal, krb4, krb5, 17650: or localauth), initial password or a kerberos realm, language (e.g., en-us) -- 17651: will be available. Values are retrieved from cache (if current), unless the 17652: optional $ignore_cache arg is true, or from domain's configuration.db (if available), 17653: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab. 17654: 17655: Typical usage: 17656: 17657: %domdefaults = &get_domain_defaults($target_domain); 17658: 17659: =back 17660: 17661: =head2 Network Status Functions 17662: 17663: =over 4 17664: 17665: =item * 17666: 17667: dirlist() : return directory list based on URI (first arg). 17668: 17669: Inputs: 1 required, 5 optional. 17670: 17671: =over 17672: 17673: =item 17674: $uri - path to file in filesystem (starts: /res or /userfiles/). Required. 17675: 17676: =item 17677: $userdomain - domain of user/course to be listed. Extracted from $uri if absent. 17678: 17679: =item 17680: $username - username of user/course to be listed. Extracted from $uri if absent. 17681: 17682: =item 17683: $getpropath - boolean: 1 if prepend path using &propath(). 17684: 17685: =item 17686: $getuserdir - boolean: 1 if prepend path for "userfiles". 17687: 17688: =item 17689: $alternateRoot - path to prepend in place of path from $uri. 17690: 17691: =back 17692: 17693: Returns: Array of up to two items. 17694: 17695: =over 17696: 17697: a reference to an array of files/subdirectories 17698: 17699: =over 17700: 17701: Each element in the array of files/subdirectories is a & separated list of 17702: item name and the result of running stat on the item. If dirlist was requested 17703: for a file instead of a directory, the item name will be ''. For a directory 17704: listing, if the item is a metadata file, the element will end &N&M 17705: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or 17706: default copyright set (1). 17707: 17708: =back 17709: 17710: a scalar containing error condition (if encountered). 17711: 17712: =over 17713: 17714: =item 17715: no_host (no homeserver identified for $username:$domain). 17716: 17717: =item 17718: no_such_host (server contacted for listing not identified as valid host). 17719: 17720: =item 17721: con_lost (connection to remote server failed). 17722: 17723: =item 17724: refused (invalid $username:$domain received on lond side). 17725: 17726: =item 17727: no_such_dir (directory at specified path on lond side does not exist). 17728: 17729: =item 17730: empty (directory at specified path on lond side is empty). 17731: 17732: =over 17733: 17734: This is currently not encountered because the &ls3, &ls2, 17735: &ls (_handler) routines on the lond side do not filter out 17736: . and .. from a directory listing. 17737: 17738: =back 17739: 17740: =back 17741: 17742: =back 17743: 17744: =item * 17745: 17746: spareserver() : find server with least workload from spare.tab 17747: 17748: 17749: =item * 17750: 17751: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef 17752: if there is no corresponding loncapa host. 17753: 17754: =back 17755: 17756: 17757: =head2 Apache Request 17758: 17759: =over 4 17760: 17761: =item * 17762: 17763: ssi($url,%hash) : server side include, does a complete request cycle on url to 17764: localhost, posts hash 17765: 17766: =back 17767: 17768: =head2 Data to String to Data 17769: 17770: =over 4 17771: 17772: =item * 17773: 17774: hash2str(%hash) : convert a hash into a string complete with escaping and '=' 17775: and '&' separators, supports elements that are arrayrefs and hashrefs 17776: 17777: =item * 17778: 17779: hashref2str($hashref) : convert a hashref into a string complete with 17780: escaping and '=' and '&' separators, supports elements that are 17781: arrayrefs and hashrefs 17782: 17783: =item * 17784: 17785: arrayref2str($arrayref) : convert an arrayref into a string complete 17786: with escaping and '&' separators, supports elements that are arrayrefs 17787: and hashrefs 17788: 17789: =item * 17790: 17791: str2hash($string) : convert string to hash using unescaping and 17792: splitting on '=' and '&', supports elements that are arrayrefs and 17793: hashrefs 17794: 17795: =item * 17796: 17797: str2array($string) : convert string to hash using unescaping and 17798: splitting on '&', supports elements that are arrayrefs and hashrefs 17799: 17800: =back 17801: 17802: =head2 Logging Routines 17803: 17804: 17805: These routines allow one to make log messages in the lonnet.log and 17806: lonnet.perm logfiles. 17807: 17808: =over 4 17809: 17810: =item * 17811: 17812: logtouch() : make sure the logfile, lonnet.log, exists 17813: 17814: =item * 17815: 17816: logthis() : append message to the normal lonnet.log file, it gets 17817: preiodically rolled over and deleted. 17818: 17819: =item * 17820: 17821: logperm() : append a permanent message to lonnet.perm.log, this log 17822: file never gets deleted by any automated portion of the system, only 17823: messages of critical importance should go in here. 17824: 17825: 17826: =back 17827: 17828: =head2 General File Helper Routines 17829: 17830: =over 4 17831: 17832: =item * 17833: 17834: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded. 17835: (a) files in /uploaded 17836: (i) If a local copy of the file exists - 17837: compares modification date of local copy with last-modified date for 17838: definitive version stored on home server for course. If local copy is 17839: stale, requests a new version from the home server and stores it. 17840: If the original has been removed from the home server, then local copy 17841: is unlinked. 17842: (ii) If local copy does not exist - 17843: requests the file from the home server and stores it. 17844: 17845: If $caller is 'uploadrep': 17846: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase) 17847: for request for files originally uploaded via DOCS. 17848: - returns 'ok' if fresh local copy now available, -1 otherwise. 17849: 17850: Otherwise: 17851: This indicates a call from the content generation phase of the request. 17852: - returns the entire contents of the file or -1. 17853: 17854: (b) files in /res 17855: - returns the entire contents of a file or -1; 17856: it properly subscribes to and replicates the file if neccessary. 17857: 17858: 17859: =item * 17860: 17861: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file 17862: reference 17863: 17864: returns either a stat() list of data about the file or an empty list 17865: if the file doesn't exist or couldn't find out about it (connection 17866: problems or user unknown) 17867: 17868: =item * 17869: 17870: filelocation($dir,$file) : returns file system location of a file 17871: based on URI; meant to be "fairly clean" absolute reference, $dir is a 17872: directory that relative $file lookups are to looked in ($dir of /a/dir 17873: and a file of ../bob will become /a/bob) 17874: 17875: =item * 17876: 17877: hreflocation($dir,$file) : returns file system location or a URL; same as 17878: filelocation except for hrefs 17879: 17880: =item * 17881: 17882: declutter() : declutters URLs -- remove beginning slashes, 'res' etc. 17883: also removes beginning /home/httpd/html unless /priv/ follows it. 17884: 17885: =back 17886: 17887: =head2 Usererfile file routines (/uploaded*) 17888: 17889: =over 4 17890: 17891: =item * 17892: 17893: userfileupload(): main rotine for putting a file in a user or course's 17894: filespace, arguments are, 17895: 17896: formname - required - this is the name of the element in $env where the 17897: filename, and the contents of the file to create/modifed exist 17898: the filename is in $env{'form.'.$formname.'.filename'} and the 17899: contents of the file is located in $env{'form.'.$formname} 17900: context - if coursedoc, store the file in the course of the active role 17901: of the current user; 17902: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp 17903: if 'canceloverwrite': delete file in tmp/overwrites directory 17904: subdir - required - subdirectory to put the file in under ../userfiles/ 17905: if undefined, it will be placed in "unknown" 17906: 17907: (This routine calls clean_filename() to remove any dangerous 17908: characters from the filename, and then calls finuserfileupload() to 17909: complete the transaction) 17910: 17911: returns either the url of the uploaded file (/uploaded/....) if successful 17912: and /adm/notfound.html if unsuccessful 17913: 17914: =item * 17915: 17916: clean_filename(): routine for cleaing a filename up for storage in 17917: userfile space, argument is: 17918: 17919: filename - proposed filename 17920: 17921: returns: the new clean filename 17922: 17923: =item * 17924: 17925: finishuserfileupload(): routine that creates and sends the file to 17926: userspace, probably shouldn't be called directly 17927: 17928: docuname: username or courseid of destination for the file 17929: docudom: domain of user/course of destination for the file 17930: formname: same as for userfileupload() 17931: fname: filename (including subdirectories) for the file 17932: parser: if 'parse', will parse (html) file to extract references to objects, links etc. 17933: if hashref, and context is scantron, will convert csv format to standard format 17934: allfiles: reference to hash used to store objects found by parser 17935: codebase: reference to hash used for codebases of java objects found by parser 17936: thumbwidth: width (pixels) of thumbnail to be created for uploaded image 17937: thumbheight: height (pixels) of thumbnail to be created for uploaded image 17938: resizewidth: width to be used to resize image using resizeImage from ImageMagick 17939: resizeheight: height to be used to resize image using resizeImage from ImageMagick 17940: context: if 'overwrite', will move the uploaded file from its temporary location to 17941: userfiles to facilitate overwriting a previously uploaded file with same name. 17942: mimetype: reference to scalar to accommodate mime type determined 17943: from File::MMagic if $parser = parse. 17944: 17945: returns either the url of the uploaded file (/uploaded/....) if successful 17946: and /adm/notfound.html if unsuccessful (or an error message if context 17947: was 'overwrite'). 17948: 17949: 17950: =item * 17951: 17952: renameuserfile(): renames an existing userfile to a new name 17953: 17954: Args: 17955: docuname: username or courseid of destination for the file 17956: docudom: domain of user/course of destination for the file 17957: old: current file name (including any subdirs under userfiles) 17958: new: desired file name (including any subdirs under userfiles) 17959: 17960: =item * 17961: 17962: mkdiruserfile(): creates a directory is a userfiles dir 17963: 17964: Args: 17965: docuname: username or courseid of destination for the file 17966: docudom: domain of user/course of destination for the file 17967: dir: dir to create (including any subdirs under userfiles) 17968: 17969: =item * 17970: 17971: removeuserfile(): removes a file that exists in userfiles 17972: 17973: Args: 17974: docuname: username or courseid of destination for the file 17975: docudom: domain of user/course of destination for the file 17976: fname: filname to delete (including any subdirs under userfiles) 17977: 17978: =item * 17979: 17980: removeuploadedurl(): convience function for removeuserfile() 17981: 17982: Args: 17983: url: a full /uploaded/... url to delete 17984: 17985: =item * 17986: 17987: get_portfile_permissions(): 17988: Args: 17989: domain: domain of user or course contain the portfolio files 17990: user: name of user or num of course contain the portfolio files 17991: Returns: 17992: hashref of a dump of the proper file_permissions.db 17993: 17994: 17995: =item * 17996: 17997: get_access_controls(): 17998: 17999: Args: 18000: current_permissions: the hash ref returned from get_portfile_permissions() 18001: group: (optional) the group you want the files associated with 18002: file: (optional) the file you want access info on 18003: 18004: Returns: 18005: a hash (keys are file names) of hashes containing 18006: keys are: path to file/file_name\0uniqueID:scope_end_start (see below) 18007: values are XML containing access control settings (see below) 18008: 18009: Internal notes: 18010: 18011: access controls are stored in file_permissions.db as key=value pairs. 18012: key -> path to file/file_name\0uniqueID:scope_end_start 18013: where scope -> public,guest,course,group,domains or users. 18014: end -> UNIX time for end of access (0 -> no end date) 18015: start -> UNIX time for start of access 18016: 18017: value -> XML description of access control 18018: <scope type=""> (type =1 of: public,guest,course,group,domains,users"> 18019: <start></start> 18020: <end></end> 18021: 18022: <password></password> for scope type = guest 18023: 18024: <domain></domain> for scope type = course or group 18025: <number></number> 18026: <roles id=""> 18027: <role></role> 18028: <access></access> 18029: <section></section> 18030: <group></group> 18031: </roles> 18032: 18033: <dom></dom> for scope type = domains 18034: 18035: <users> for scope type = users 18036: <user> 18037: <uname></uname> 18038: <udom></udom> 18039: </user> 18040: </users> 18041: </scope> 18042: 18043: Access data is also aggregated for each file in an additional key=value pair: 18044: key -> path to file/file_name\0accesscontrol 18045: value -> reference to hash 18046: hash contains key = value pairs 18047: where key = uniqueID:scope_end_start 18048: value = UNIX time record was last updated 18049: 18050: Used to improve speed of look-ups of access controls for each file. 18051: 18052: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays. 18053: 18054: =item * 18055: 18056: modify_access_controls(): 18057: 18058: Modifies access controls for a portfolio file 18059: Args 18060: 1. file name 18061: 2. reference to hash of required changes, 18062: 3. domain 18063: 4. username 18064: where domain,username are the domain of the portfolio owner 18065: (either a user or a course) 18066: 18067: Returns: 18068: 1. result of additions or updates ('ok' or 'error', with error message). 18069: 2. result of deletions ('ok' or 'error', with error message). 18070: 3. reference to hash of any new or updated access controls. 18071: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control. 18072: key = integer (inbound ID) 18073: value = uniqueID 18074: 18075: =item * 18076: 18077: get_timebased_id(): 18078: 18079: Attempts to get a unique timestamp-based suffix for use with items added to a 18080: course via the Course Editor (e.g., folders, composite pages, 18081: group bulletin boards). 18082: 18083: Args: (first three required; six others optional) 18084: 18085: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage, 18086: docssequence, or name of group 18087: 18088: 2. keyid (alphanumeric): name of temporary locking key in hash, 18089: e.g., num, boardids 18090: 18091: 3. namespace: name of gdbm file used to store suffixes already assigned; 18092: file will be named nohist_namespace.db 18093: 18094: 4. cdom: domain of course; default is current course domain from %env 18095: 18096: 5. cnum: course number; default is current course number from %env 18097: 18098: 6. idtype: set to concat if an additional digit is to be appended to the 18099: unix timestamp to form the suffix, if the plain timestamp is already 18100: in use. Default is to not do this, but simply increment the unix 18101: timestamp by 1 until a unique key is obtained. 18102: 18103: 7. who: holder of locking key; defaults to user:domain for user. 18104: 18105: 8. locktries: number of attempts to obtain a lock (sleep of 1s before 18106: retrying); default is 3. 18107: 18108: 9. maxtries: number of attempts to obtain a unique suffix; default is 20. 18109: 18110: Returns: 18111: 18112: 1. suffix obtained (numeric) 18113: 18114: 2. result of deleting locking key (ok if deleted, or lock never obtained) 18115: 18116: 3. error: contains (localized) error message if an error occurred. 18117: 18118: 18119: =back 18120: 18121: =head2 HTTP Helper Routines 18122: 18123: =over 4 18124: 18125: =item * 18126: 18127: escape() : unpack non-word characters into CGI-compatible hex codes 18128: 18129: =item * 18130: 18131: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character 18132: 18133: =back 18134: 18135: =head1 PRIVATE SUBROUTINES 18136: 18137: =head2 Underlying communication routines (Shouldn't call) 18138: 18139: =over 4 18140: 18141: =item * 18142: 18143: subreply() : tries to pass a message to lonc, returns con_lost if incapable 18144: 18145: =item * 18146: 18147: reply() : uses subreply to send a message to remote machine, logs all failures 18148: 18149: =item * 18150: 18151: critical() : passes a critical message to another server; if cannot 18152: get through then place message in connection buffer directory and 18153: returns con_delayed, if incapable of saving message, returns 18154: con_failed 18155: 18156: =item * 18157: 18158: reconlonc() : tries to reconnect lonc client processes. 18159: 18160: =back 18161: 18162: =head2 Resource Access Logging 18163: 18164: =over 4 18165: 18166: =item * 18167: 18168: flushcourselogs() : flush (save) buffer logs and access logs 18169: 18170: =item * 18171: 18172: courselog($what) : save message for course in hash 18173: 18174: =item * 18175: 18176: courseacclog($what) : save message for course using &courselog(). Perform 18177: special processing for specific resource types (problems, exams, quizzes, etc). 18178: 18179: =item * 18180: 18181: goodbye() : flush course logs and log shutting down; it is called in srm.conf 18182: as a PerlChildExitHandler 18183: 18184: =back 18185: 18186: =head2 Other 18187: 18188: =over 4 18189: 18190: =item * 18191: 18192: symblist($mapname,%newhash) : update symbolic storage links 18193: 18194: =back 18195: 18196: =cut 18197: