loncom/lonnet/perl/lonnet.pm - view

File: [LON-CAPA] / loncom / lonnet / perl / lonnet.pm
Revision 1.1427: download - view: text, annotated - select for diffs
Tue Oct 6 17:26:15 2020 UTC (3 years, 9 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 6518.
  More comprehensive access to symb for a requested URL to determine when
  access should be blocked and why, if content blocking in use.

1: # The LearningOnline Network 2: # TCP networking package 3: # 4: # $Id: lonnet.pm,v 1.1427 2020/10/06 17:26:15 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 LONCAPA qw(:DEFAULT :match); 100: use LONCAPA::Configuration; 101: use LONCAPA::lonmetadata; 102: use LONCAPA::Lond; 103: use LONCAPA::LWPReq; 104: use LONCAPA::transliterate; 105: 106: use File::Copy; 107: 108: my $readit; 109: my $max_connection_retries = 20; # Or some such value. 110: 111: require Exporter; 112: 113: our @ISA = qw (Exporter); 114: our @EXPORT = qw(%env); 115: 116: 117: # ------------------------------------ Logging (parameters, docs, slots, roles) 118: { 119: my $logid; 120: sub write_log { 121: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_; 122: if ($context eq 'course') { 123: if (($cnum eq '') || ($cdom eq '')) { 124: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 125: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 126: } 127: } 128: $logid ++; 129: my $now = time(); 130: my $id=$now.'00000'.$$.'00000'.$logid; 131: my $logentry = { 132: $id => { 133: 'exe_uname' => $env{'user.name'}, 134: 'exe_udom' => $env{'user.domain'}, 135: 'exe_time' => $now, 136: 'exe_ip' => $ENV{'REMOTE_ADDR'}, 137: 'delflag' => $delflag, 138: 'logentry' => $storehash, 139: 'uname' => $uname, 140: 'udom' => $udom, 141: } 142: }; 143: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum); 144: } 145: } 146: 147: sub logtouch { 148: my $execdir=$perlvar{'lonDaemons'}; 149: unless (-e "$execdir/logs/lonnet.log") { 150: open(my $fh,">>","$execdir/logs/lonnet.log"); 151: close $fh; 152: } 153: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3]; 154: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log'); 155: } 156: 157: sub logthis { 158: my $message=shift; 159: my $execdir=$perlvar{'lonDaemons'}; 160: my $now=time; 161: my $local=localtime($now); 162: if (open(my $fh,">>","$execdir/logs/lonnet.log")) { 163: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string. 164: print $fh $logstring; 165: close($fh); 166: } 167: return 1; 168: } 169: 170: sub logperm { 171: my $message=shift; 172: my $execdir=$perlvar{'lonDaemons'}; 173: my $now=time; 174: my $local=localtime($now); 175: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) { 176: print $fh "$now:$message:$local\n"; 177: close($fh); 178: } 179: return 1; 180: } 181: 182: sub create_connection { 183: my ($hostname,$lonid) = @_; 184: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'}, 185: Type => SOCK_STREAM, 186: Timeout => 10); 187: return 0 if (!$client); 188: print $client (join(':',$hostname,$lonid,&machine_ids($hostname),$loncaparevs{$lonid})."\n"); 189: my $result = <$client>; 190: chomp($result); 191: return 1 if ($result eq 'done'); 192: return 0; 193: } 194: 195: sub get_server_timezone { 196: my ($cnum,$cdom) = @_; 197: my $home=&homeserver($cnum,$cdom); 198: if ($home ne 'no_host') { 199: my $cachetime = 24*3600; 200: my ($timezone,$cached)=&is_cached_new('servertimezone',$home); 201: if (defined($cached)) { 202: return $timezone; 203: } else { 204: my $timezone = &reply('servertimezone',$home); 205: return &do_cache_new('servertimezone',$home,$timezone,$cachetime); 206: } 207: } 208: } 209: 210: sub get_server_distarch { 211: my ($lonhost,$ignore_cache) = @_; 212: if (defined($lonhost)) { 213: if (!defined(&hostname($lonhost))) { 214: return; 215: } 216: my $cachetime = 12*3600; 217: if (!$ignore_cache) { 218: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost); 219: if (defined($cached)) { 220: return $distarch; 221: } 222: } 223: my $rep = &reply('serverdistarch',$lonhost); 224: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || 225: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || 226: $rep eq '') { 227: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime); 228: } 229: } 230: return; 231: } 232: 233: sub get_servercerts_info { 234: my ($lonhost,$hostname,$context) = @_; 235: return if ($lonhost eq ''); 236: if ($hostname eq '') { 237: $hostname = &hostname($lonhost); 238: } 239: return if ($hostname eq ''); 240: my ($rep,$uselocal); 241: if ($context eq 'install') { 242: $uselocal = 1; 243: } elsif (grep { $_ eq $lonhost } &current_machine_ids()) { 244: $uselocal = 1; 245: } 246: if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) { 247: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; 248: if ($distro eq '') { 249: $uselocal = 0; 250: } elsif ($distro =~ /^(?:centos|redhat|scientific)(\d+)$/) { 251: if ($1 < 6) { 252: $uselocal = 0; 253: } 254: } elsif ($distro =~ /^(?:sles)(\d+)$/) { 255: if ($1 < 12) { 256: $uselocal = 0; 257: } 258: } 259: } 260: if ($uselocal) { 261: $rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname); 262: } else { 263: $rep=&reply('servercerts',$lonhost); 264: } 265: my ($result,%returnhash); 266: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 267: ($rep eq 'unknown_cmd')) { 268: $result = $rep; 269: } else { 270: $result = 'ok'; 271: my @pairs=split(/\&/,$rep); 272: foreach my $item (@pairs) { 273: my ($key,$value)=split(/=/,$item,2); 274: my $what = &unescape($key); 275: $returnhash{$what}=&thaw_unescape($value); 276: } 277: } 278: return ($result,\%returnhash); 279: } 280: 281: sub get_server_loncaparev { 282: my ($dom,$lonhost,$ignore_cache,$caller) = @_; 283: if (defined($lonhost)) { 284: if (!defined(&hostname($lonhost))) { 285: undef($lonhost); 286: } 287: } 288: if (!defined($lonhost)) { 289: if (defined(&domain($dom,'primary'))) { 290: $lonhost=&domain($dom,'primary'); 291: if ($lonhost eq 'no_host') { 292: undef($lonhost); 293: } 294: } 295: } 296: if (defined($lonhost)) { 297: my $cachetime = 12*3600; 298: if (!$ignore_cache) { 299: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost); 300: if (defined($cached)) { 301: return $loncaparev; 302: } 303: } 304: my ($answer,$loncaparev); 305: my @ids=&current_machine_ids(); 306: if (grep(/^\Q$lonhost\E$/,@ids)) { 307: $answer = $perlvar{'lonVersion'}; 308: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { 309: $loncaparev = $1; 310: } 311: } else { 312: $answer = &reply('serverloncaparev',$lonhost); 313: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) { 314: if ($caller eq 'loncron') { 315: my $hostname = &hostname($lonhost); 316: my $protocol = $protocol{$lonhost}; 317: $protocol = 'http' if ($protocol ne 'https'); 318: my $url = $protocol.'://'.$hostname.'/adm/about.html'; 319: my $request=new HTTP::Request('GET',$url); 320: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1); 321: unless ($response->is_error()) { 322: my $content = $response->content; 323: if ($content =~ /VERSION\:\s*([\w.\-]+)<\/p>/) { 324: $loncaparev = $1; 325: } 326: } 327: } else { 328: $loncaparev = $loncaparevs{$lonhost}; 329: } 330: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { 331: $loncaparev = $1; 332: } 333: } 334: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime); 335: } 336: } 337: 338: sub get_server_homeID { 339: my ($hostname,$ignore_cache,$caller) = @_; 340: unless ($ignore_cache) { 341: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname); 342: if (defined($cached)) { 343: return $serverhomeID; 344: } 345: } 346: my $cachetime = 12*3600; 347: my $serverhomeID; 348: if ($caller eq 'loncron') { 349: my @machine_ids = &machine_ids($hostname); 350: foreach my $id (@machine_ids) { 351: my $response = &reply('serverhomeID',$id); 352: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) { 353: $serverhomeID = $response; 354: last; 355: } 356: } 357: if ($serverhomeID eq '') { 358: $serverhomeID = $machine_ids[-1]; 359: } 360: } else { 361: $serverhomeID = $serverhomeIDs{$hostname}; 362: } 363: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime); 364: } 365: 366: sub get_remote_globals { 367: my ($lonhost,$whathash,$ignore_cache) = @_; 368: my ($result,%returnhash,%whatneeded); 369: if (ref($whathash) eq 'HASH') { 370: foreach my $what (sort(keys(%{$whathash}))) { 371: my $hashid = $lonhost.'-'.$what; 372: my ($response,$cached); 373: unless ($ignore_cache) { 374: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid); 375: } 376: if (defined($cached)) { 377: $returnhash{$what} = $response; 378: } else { 379: $whatneeded{$what} = 1; 380: } 381: } 382: if (keys(%whatneeded) == 0) { 383: $result = 'ok'; 384: } else { 385: my $requested = &freeze_escape(\%whatneeded); 386: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost); 387: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || 388: ($rep eq 'unknown_cmd')) { 389: $result = $rep; 390: } else { 391: $result = 'ok'; 392: my @pairs=split(/\&/,$rep); 393: foreach my $item (@pairs) { 394: my ($key,$value)=split(/=/,$item,2); 395: my $what = &unescape($key); 396: my $hashid = $lonhost.'-'.$what; 397: $returnhash{$what}=&thaw_unescape($value); 398: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600); 399: } 400: } 401: } 402: } 403: return ($result,\%returnhash); 404: } 405: 406: sub remote_devalidate_cache { 407: my ($lonhost,$cachekeys) = @_; 408: my $items; 409: return unless (ref($cachekeys) eq 'ARRAY'); 410: my $cachestr = join('&',@{$cachekeys}); 411: my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost); 412: return $response; 413: } 414: 415: # -------------------------------------------------- Non-critical communication 416: sub subreply { 417: my ($cmd,$server)=@_; 418: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server); 419: # 420: # With loncnew process trimming, there's a timing hole between lonc server 421: # process exit and the master server picking up the listen on the AF_UNIX 422: # socket. In that time interval, a lock file will exist: 423: 424: my $lockfile=$peerfile.".lock"; 425: while (-e $lockfile) { # Need to wait for the lockfile to disappear. 426: sleep(0.1); 427: } 428: # At this point, either a loncnew parent is listening or an old lonc 429: # or loncnew child is listening so we can connect or everything's dead. 430: # 431: # We'll give the connection a few tries before abandoning it. If 432: # connection is not possible, we'll con_lost back to the client. 433: # 434: my $client; 435: for (my $retries = 0; $retries < $max_connection_retries; $retries++) { 436: $client=IO::Socket::UNIX->new(Peer =>"$peerfile", 437: Type => SOCK_STREAM, 438: Timeout => 10); 439: if ($client) { 440: last; # Connected! 441: } else { 442: &create_connection(&hostname($server),$server); 443: } 444: sleep(0.1); # Try again later if failed connection. 445: } 446: my $answer; 447: if ($client) { 448: print $client "sethost:$server:$cmd\n"; 449: $answer=<$client>; 450: if (!$answer) { $answer="con_lost"; } 451: chomp($answer); 452: } else { 453: $answer = 'con_lost'; # Failed connection. 454: } 455: return $answer; 456: } 457: 458: sub reply { 459: my ($cmd,$server)=@_; 460: unless (defined(&hostname($server))) { return 'no_such_host'; } 461: my $answer=subreply($cmd,$server); 462: if (($answer=~/^refused/) || ($answer=~/^rejected/)) { 463: my $logged = $cmd; 464: if ($cmd =~ /^encrypt:([^:]+):/) { 465: my $subcmd = $1; 466: if (($subcmd eq 'auth') || ($subcmd eq 'passwd') || 467: ($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || 468: ($subcmd eq 'putdom') || ($subcmd eq 'autoexportgrades')) { 469: (undef,undef,my @rest) = split(/:/,$cmd); 470: if (($subcmd eq 'auth') || ($subcmd eq 'putdom')) { 471: splice(@rest,2,1,'Hidden'); 472: } elsif ($subcmd eq 'passwd') { 473: splice(@rest,2,2,('Hidden','Hidden')); 474: } elsif (($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || 475: ($subcmd eq 'autoexportgrades')) { 476: splice(@rest,3,1,'Hidden'); 477: } 478: $logged = join(':',('encrypt:'.$subcmd,@rest)); 479: } 480: } 481: &logthis("WARNING:". 482: " $logged to $server returned $answer"); 483: } 484: return $answer; 485: } 486: 487: # ----------------------------------------------------------- Send USR1 to lonc 488: 489: sub reconlonc { 490: my ($lonid) = @_; 491: if ($lonid) { 492: my $hostname = &hostname($lonid); 493: my $peerfile="$perlvar{'lonSockDir'}/$hostname"; 494: if ($hostname && -e $peerfile) { 495: &logthis("Trying to reconnect lonc for $lonid ($hostname)"); 496: my $client=IO::Socket::UNIX->new(Peer => $peerfile, 497: Type => SOCK_STREAM, 498: Timeout => 10); 499: if ($client) { 500: print $client ("reset_retries\n"); 501: my $answer=<$client>; 502: #reset just this one. 503: } 504: } 505: return; 506: } 507: 508: &logthis("Trying to reconnect lonc"); 509: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; 510: if (open(my $fh,"<",$loncfile)) { 511: my $loncpid=<$fh>; 512: chomp($loncpid); 513: if (kill 0 => $loncpid) { 514: &logthis("lonc at pid $loncpid responding, sending USR1"); 515: kill USR1 => $loncpid; 516: sleep 1; 517: } else { 518: &logthis( 519: "WARNING:". 520: " lonc at pid $loncpid not responding, giving up"); 521: } 522: } else { 523: &logthis('WARNING: lonc not running, giving up'); 524: } 525: } 526: 527: # ------------------------------------------------------ Critical communication 528: 529: sub critical { 530: my ($cmd,$server)=@_; 531: unless (&hostname($server)) { 532: &logthis("WARNING:". 533: " Critical message to unknown server ($server)"); 534: return 'no_such_host'; 535: } 536: my $answer=reply($cmd,$server); 537: if ($answer eq 'con_lost') { 538: &reconlonc($server); 539: my $answer=reply($cmd,$server); 540: if ($answer eq 'con_lost') { 541: my $now=time; 542: my $middlename=$cmd; 543: $middlename=substr($middlename,0,16); 544: $middlename=~s/\W//g; 545: my $dfilename= 546: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server"; 547: $dumpcount++; 548: { 549: my $dfh; 550: if (open($dfh,">",$dfilename)) { 551: print $dfh "$cmd\n"; 552: close($dfh); 553: } 554: } 555: sleep 1; 556: my $wcmd=''; 557: { 558: my $dfh; 559: if (open($dfh,"<",$dfilename)) { 560: $wcmd=<$dfh>; 561: close($dfh); 562: } 563: } 564: chomp($wcmd); 565: if ($wcmd eq $cmd) { 566: &logthis("WARNING: ". 567: "Connection buffer $dfilename: $cmd"); 568: &logperm("D:$server:$cmd"); 569: return 'con_delayed'; 570: } else { 571: &logthis("CRITICAL:" 572: ." Critical connection failed: $server $cmd"); 573: &logperm("F:$server:$cmd"); 574: return 'con_failed'; 575: } 576: } 577: } 578: return $answer; 579: } 580: 581: # ------------------------------------------- check if return value is an error 582: 583: sub error { 584: my ($result) = @_; 585: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) { 586: if ($2 == 2) { return undef; } 587: return $1; 588: } 589: return undef; 590: } 591: 592: sub convert_and_load_session_env { 593: my ($lonidsdir,$handle)=@_; 594: my @profile; 595: { 596: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 597: if (!$opened) { 598: return 0; 599: } 600: flock($idf,LOCK_SH); 601: @profile=<$idf>; 602: close($idf); 603: } 604: my %temp_env; 605: foreach my $line (@profile) { 606: if ($line !~ m/=/) { 607: return 0; 608: } 609: chomp($line); 610: my ($envname,$envvalue)=split(/=/,$line,2); 611: $temp_env{&unescape($envname)} = &unescape($envvalue); 612: } 613: unlink("$lonidsdir/$handle.id"); 614: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(), 615: 0640)) { 616: %disk_env = %temp_env; 617: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)}; 618: untie(%disk_env); 619: } 620: return 1; 621: } 622: 623: # ------------------------------------------- Transfer profile into environment 624: my $env_loaded; 625: sub transfer_profile_to_env { 626: my ($lonidsdir,$handle,$force_transfer) = @_; 627: if (!$force_transfer && $env_loaded) { return; } 628: 629: if (!defined($lonidsdir)) { 630: $lonidsdir = $perlvar{'lonIDsDir'}; 631: } 632: if (!defined($handle)) { 633: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| ); 634: } 635: 636: my $convert; 637: { 638: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 639: if (!$opened) { 640: return; 641: } 642: flock($idf,LOCK_SH); 643: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", 644: &GDBM_READER(),0640)) { 645: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)}; 646: untie(%disk_env); 647: } else { 648: $convert = 1; 649: } 650: } 651: if ($convert) { 652: if (!&convert_and_load_session_env($lonidsdir,$handle)) { 653: &logthis("Failed to load session, or convert session."); 654: } 655: } 656: 657: my %remove; 658: while ( my $envname = each(%env) ) { 659: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) { 660: if ($time < time-300) { 661: $remove{$key}++; 662: } 663: } 664: } 665: 666: $env{'user.environment'} = "$lonidsdir/$handle.id"; 667: $env_loaded=1; 668: foreach my $expired_key (keys(%remove)) { 669: &delenv($expired_key); 670: } 671: } 672: 673: # ---------------------------------------------------- Check for valid session 674: sub check_for_valid_session { 675: my ($r,$name,$userhashref,$domref) = @_; 676: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 677: my ($lonidsdir,$linkname,$pubname,$secure,$lonid); 678: if ($name eq 'lonDAV') { 679: $lonidsdir=$r->dir_config('lonDAVsessDir'); 680: } else { 681: $lonidsdir=$r->dir_config('lonIDsDir'); 682: if ($name eq '') { 683: $name = 'lonID'; 684: } 685: } 686: if ($name eq 'lonID') { 687: $secure = 'lonSID'; 688: $linkname = 'lonLinkID'; 689: $pubname = 'lonPubID'; 690: if (exists($cookies{$secure})) { 691: $lonid=$cookies{$secure}; 692: } elsif (exists($cookies{$name})) { 693: $lonid=$cookies{$name}; 694: } elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) { 695: $lonid=$cookies{$linkname}; 696: } elsif (exists($cookies{$pubname})) { 697: $lonid=$cookies{$pubname}; 698: } 699: } else { 700: $lonid=$cookies{$name}; 701: } 702: return undef if (!$lonid); 703: 704: my $handle=&LONCAPA::clean_handle($lonid->value); 705: if (-l "$lonidsdir/$handle.id") { 706: my $link = readlink("$lonidsdir/$handle.id"); 707: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { 708: $handle = $1; 709: } 710: } 711: if (!-e "$lonidsdir/$handle.id") { 712: if ((ref($domref)) && ($name eq 'lonID') && 713: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { 714: my ($possuname,$possudom,$possuhome) = ($1,$2,$3); 715: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { 716: $$domref = $possudom; 717: } 718: } 719: return undef; 720: } 721: 722: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); 723: return undef if (!$opened); 724: 725: flock($idf,LOCK_SH); 726: my %disk_env; 727: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id", 728: &GDBM_READER(),0640)) { 729: return undef; 730: } 731: 732: if (!defined($disk_env{'user.name'}) 733: || !defined($disk_env{'user.domain'})) { 734: untie(%disk_env); 735: return undef; 736: } 737: 738: if (ref($userhashref) eq 'HASH') { 739: $userhashref->{'name'} = $disk_env{'user.name'}; 740: $userhashref->{'domain'} = $disk_env{'user.domain'}; 741: $userhashref->{'lti'} = $disk_env{'request.lti.login'}; 742: if ($userhashref->{'lti'}) { 743: $userhashref->{'ltitarget'} = $disk_env{'request.lti.target'}; 744: $userhashref->{'ltiuri'} = $disk_env{'request.lti.uri'}; 745: } 746: } 747: untie(%disk_env); 748: 749: return $handle; 750: } 751: 752: sub timed_flock { 753: my ($file,$lock_type) = @_; 754: my $failed=0; 755: eval { 756: local $SIG{__DIE__}='DEFAULT'; 757: local $SIG{ALRM}=sub { 758: $failed=1; 759: die("failed lock"); 760: }; 761: alarm(13); 762: flock($file,$lock_type); 763: alarm(0); 764: }; 765: if ($failed) { 766: return undef; 767: } else { 768: return 1; 769: } 770: } 771: 772: sub get_sessionfile_vars { 773: my ($handle,$lonidsdir,$storearr) = @_; 774: my %returnhash; 775: unless (ref($storearr) eq 'ARRAY') { 776: return %returnhash; 777: } 778: if (-l "$lonidsdir/$handle.id") { 779: my $link = readlink("$lonidsdir/$handle.id"); 780: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { 781: $handle = $1; 782: } 783: } 784: if ((-e "$lonidsdir/$handle.id") && 785: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { 786: my ($possuname,$possudom,$possuhome) = ($1,$2,$3); 787: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { 788: if (open(my $idf,'+<',"$lonidsdir/$handle.id")) { 789: flock($idf,LOCK_SH); 790: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", 791: &GDBM_READER(),0640)) { 792: foreach my $item (@{$storearr}) { 793: $returnhash{$item} = $disk_env{$item}; 794: } 795: untie(%disk_env); 796: } 797: } 798: } 799: } 800: return %returnhash; 801: } 802: 803: # ---------------------------------------------------------- Append Environment 804: 805: sub appenv { 806: my ($newenv,$roles) = @_; 807: if (ref($newenv) eq 'HASH') { 808: foreach my $key (keys(%{$newenv})) { 809: my $refused = 0; 810: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) { 811: $refused = 1; 812: if (ref($roles) eq 'ARRAY') { 813: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./}); 814: if (grep(/^\Q$role\E$/,@{$roles})) { 815: $refused = 0; 816: } 817: } 818: } 819: if ($refused) { 820: &logthis("WARNING: ". 821: "Attempt to modify environment ".$key." to ".$newenv->{$key} 822: .''); 823: delete($newenv->{$key}); 824: } else { 825: $env{$key}=$newenv->{$key}; 826: } 827: } 828: my $lonids = $perlvar{'lonIDsDir'}; 829: if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) { 830: my $opened = open(my $env_file,'+<',$env{'user.environment'}); 831: if ($opened 832: && &timed_flock($env_file,LOCK_EX) 833: && 834: tie(my %disk_env,'GDBM_File',$env{'user.environment'}, 835: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { 836: while (my ($key,$value) = each(%{$newenv})) { 837: $disk_env{$key} = $value; 838: } 839: untie(%disk_env); 840: } 841: } 842: } 843: return 'ok'; 844: } 845: # ----------------------------------------------------- Delete from Environment 846: 847: sub delenv { 848: my ($delthis,$regexp,$roles) = @_; 849: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) { 850: my $refused = 1; 851: if (ref($roles) eq 'ARRAY') { 852: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./); 853: if (grep(/^\Q$role\E$/,@{$roles})) { 854: $refused = 0; 855: } 856: } 857: if ($refused) { 858: &logthis("WARNING: ". 859: "Attempt to delete from environment ".$delthis); 860: return 'error'; 861: } 862: } 863: my $opened = open(my $env_file,'+<',$env{'user.environment'}); 864: if ($opened 865: && &timed_flock($env_file,LOCK_EX) 866: && 867: tie(my %disk_env,'GDBM_File',$env{'user.environment'}, 868: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { 869: foreach my $key (keys(%disk_env)) { 870: if ($regexp) { 871: if ($key=~/^$delthis/) { 872: delete($env{$key}); 873: delete($disk_env{$key}); 874: } 875: } else { 876: if ($key=~/^\Q$delthis\E/) { 877: delete($env{$key}); 878: delete($disk_env{$key}); 879: } 880: } 881: } 882: untie(%disk_env); 883: } 884: return 'ok'; 885: } 886: 887: sub get_env_multiple { 888: my ($name) = @_; 889: my @values; 890: if (defined($env{$name})) { 891: # exists is it an array 892: if (ref($env{$name})) { 893: @values=@{ $env{$name} }; 894: } else { 895: $values[0]=$env{$name}; 896: } 897: } 898: return(@values); 899: } 900: 901: # ------------------------------------------------------------------- Locking 902: 903: sub set_lock { 904: my ($text)=@_; 905: $locknum++; 906: my $id=$$.'-'.$locknum; 907: &appenv({'session.locks' => $env{'session.locks'}.','.$id, 908: 'session.lock.'.$id => $text}); 909: return $id; 910: } 911: 912: sub get_locks { 913: my $num=0; 914: my %texts=(); 915: foreach my $lock (split(/\,/,$env{'session.locks'})) { 916: if ($lock=~/\w/) { 917: $num++; 918: $texts{$lock}=$env{'session.lock.'.$lock}; 919: } 920: } 921: return ($num,%texts); 922: } 923: 924: sub remove_lock { 925: my ($id)=@_; 926: my $newlocks=''; 927: foreach my $lock (split(/\,/,$env{'session.locks'})) { 928: if (($lock=~/\w/) && ($lock ne $id)) { 929: $newlocks.=','.$lock; 930: } 931: } 932: &appenv({'session.locks' => $newlocks}); 933: &delenv('session.lock.'.$id); 934: } 935: 936: sub remove_all_locks { 937: my $activelocks=$env{'session.locks'}; 938: foreach my $lock (split(/\,/,$env{'session.locks'})) { 939: if ($lock=~/\w/) { 940: &remove_lock($lock); 941: } 942: } 943: } 944: 945: 946: # ------------------------------------------ Find out current server userload 947: sub userload { 948: my $numusers=0; 949: { 950: opendir(LONIDS,$perlvar{'lonIDsDir'}); 951: my $filename; 952: my $curtime=time; 953: while ($filename=readdir(LONIDS)) { 954: next if ($filename eq '.' || $filename eq '..'); 955: next if ($filename =~ /publicuser_\d+\.id/); 956: next if ($filename =~ /^[a-f0-9]+_linked\.id$/); 957: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; 958: if ($curtime-$mtime < 1800) { $numusers++; } 959: } 960: closedir(LONIDS); 961: } 962: my $userloadpercent=0; 963: my $maxuserload=$perlvar{'lonUserLoadLim'}; 964: if ($maxuserload) { 965: $userloadpercent=100*$numusers/$maxuserload; 966: } 967: $userloadpercent=sprintf("%.2f",$userloadpercent); 968: return $userloadpercent; 969: } 970: 971: # ------------------------------ Find server with least workload from spare.tab 972: 973: sub spareserver { 974: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_; 975: my $spare_server; 976: if ($userloadpercent !~ /\d/) { $userloadpercent=0; } 977: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent 978: : $userloadpercent; 979: my ($uint_dom,$remotesessions); 980: if (($udom ne '') && (&domain($udom) ne '')) { 981: my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); 982: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); 983: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom); 984: $remotesessions = $udomdefaults{'remotesessions'}; 985: } 986: my $spareshash = &this_host_spares($udom); 987: if (ref($spareshash) eq 'HASH') { 988: if (ref($spareshash->{'primary'}) eq 'ARRAY') { 989: foreach my $try_server (@{ $spareshash->{'primary'} }) { 990: next unless (&spare_can_host($udom,$uint_dom,$remotesessions, 991: $try_server)); 992: ($spare_server, $lowest_load) = 993: &compare_server_load($try_server, $spare_server, $lowest_load); 994: } 995: } 996: 997: my $found_server = ($spare_server ne '' && $lowest_load < 100); 998: 999: if (!$found_server) { 1000: if (ref($spareshash->{'default'}) eq 'ARRAY') { 1001: foreach my $try_server (@{ $spareshash->{'default'} }) { 1002: next unless (&spare_can_host($udom,$uint_dom, 1003: $remotesessions,$try_server)); 1004: ($spare_server, $lowest_load) = 1005: &compare_server_load($try_server, $spare_server, $lowest_load); 1006: } 1007: } 1008: } 1009: } 1010: 1011: if (!$want_server_name) { 1012: if (defined($spare_server)) { 1013: my $hostname = &hostname($spare_server); 1014: if (defined($hostname)) { 1015: my $protocol = 'http'; 1016: if ($protocol{$spare_server} eq 'https') { 1017: $protocol = $protocol{$spare_server}; 1018: } 1019: $spare_server = $protocol.'://'.$hostname; 1020: } 1021: } 1022: } 1023: return $spare_server; 1024: } 1025: 1026: sub compare_server_load { 1027: my ($try_server, $spare_server, $lowest_load, $required) = @_; 1028: 1029: if ($required) { 1030: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/); 1031: my $remoterev = &get_server_loncaparev(undef,$try_server); 1032: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 1033: if (($major eq '' && $minor eq '') || 1034: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) { 1035: return ($spare_server,$lowest_load); 1036: } 1037: } 1038: 1039: my $loadans = &reply('load', $try_server); 1040: my $userloadans = &reply('userload',$try_server); 1041: 1042: if ($loadans !~ /\d/ && $userloadans !~ /\d/) { 1043: return ($spare_server, $lowest_load); #didn't get a number from the server 1044: } 1045: 1046: my $load; 1047: if ($loadans =~ /\d/) { 1048: if ($userloadans =~ /\d/) { 1049: #both are numbers, pick the bigger one 1050: $load = ($loadans > $userloadans) ? $loadans 1051: : $userloadans; 1052: } else { 1053: $load = $loadans; 1054: } 1055: } else { 1056: $load = $userloadans; 1057: } 1058: 1059: if (($load =~ /\d/) && ($load < $lowest_load)) { 1060: $spare_server = $try_server; 1061: $lowest_load = $load; 1062: } 1063: return ($spare_server,$lowest_load); 1064: } 1065: 1066: # --------------------------- ask offload servers if user already has a session 1067: sub find_existing_session { 1068: my ($udom,$uname) = @_; 1069: my $spareshash = &this_host_spares($udom); 1070: if (ref($spareshash) eq 'HASH') { 1071: if (ref($spareshash->{'primary'}) eq 'ARRAY') { 1072: foreach my $try_server (@{ $spareshash->{'primary'} }) { 1073: return $try_server if (&has_user_session($try_server, $udom, $uname)); 1074: } 1075: } 1076: if (ref($spareshash->{'default'}) eq 'ARRAY') { 1077: foreach my $try_server (@{ $spareshash->{'default'} }) { 1078: return $try_server if (&has_user_session($try_server, $udom, $uname)); 1079: } 1080: } 1081: } 1082: return; 1083: } 1084: 1085: sub delusersession { 1086: my ($lonid,$udom,$uname) = @_; 1087: my $uprimary_id = &domain($udom,'primary'); 1088: my $uintdom = &internet_dom($uprimary_id); 1089: my $intdom = &internet_dom($lonid); 1090: my $serverhomedom = &host_domain($lonid); 1091: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1092: return &reply(join(':','delusersession', 1093: map {&escape($_)} ($udom,$uname)),$lonid); 1094: } 1095: return; 1096: } 1097: 1098: # check if user's browser sent load balancer cookie and server still has session 1099: # and is not overloaded. 1100: sub check_for_balancer_cookie { 1101: my ($r,$update_mtime) = @_; 1102: my ($otherserver,$cookie); 1103: my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); 1104: if (exists($cookies{'balanceID'})) { 1105: my $balid = $cookies{'balanceID'}; 1106: $cookie=&LONCAPA::clean_handle($balid->value); 1107: my $balancedir=$r->dir_config('lonBalanceDir'); 1108: if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) { 1109: if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) { 1110: my ($possudom,$possuname) = ($1,$2); 1111: my $has_session = 0; 1112: if ((&domain($possudom) ne '') && 1113: (&homeserver($possuname,$possudom) ne 'no_host')) { 1114: my $try_server; 1115: my $opened = open(my $idf,'+<',"$balancedir/$cookie.id"); 1116: if ($opened) { 1117: flock($idf,LOCK_SH); 1118: while (my $line = <$idf>) { 1119: chomp($line); 1120: if (&hostname($line) ne '') { 1121: $try_server = $line; 1122: last; 1123: } 1124: } 1125: close($idf); 1126: if (($try_server) && 1127: (&has_user_session($try_server,$possudom,$possuname))) { 1128: my $lowest_load = 30000; 1129: ($otherserver,$lowest_load) = 1130: &compare_server_load($try_server,undef,$lowest_load); 1131: if ($otherserver ne '' && $lowest_load < 100) { 1132: $has_session = 1; 1133: } else { 1134: undef($otherserver); 1135: } 1136: } 1137: } 1138: } 1139: if ($has_session) { 1140: if ($update_mtime) { 1141: my $atime = my $mtime = time; 1142: utime($atime,$mtime,"$balancedir/$cookie.id"); 1143: } 1144: } else { 1145: unlink("$balancedir/$cookie.id"); 1146: } 1147: } 1148: } 1149: } 1150: return ($otherserver,$cookie); 1151: } 1152: 1153: sub delbalcookie { 1154: my ($cookie,$balancer) =@_; 1155: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { 1156: my ($udom,$uname) = ($1,$2); 1157: my $uprimary_id = &domain($udom,'primary'); 1158: my $uintdom = &internet_dom($uprimary_id); 1159: my $intdom = &internet_dom($balancer); 1160: my $serverhomedom = &host_domain($balancer); 1161: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1162: return &reply("delbalcookie:$cookie",$balancer); 1163: } 1164: } 1165: } 1166: 1167: # -------------------------------- ask if server already has a session for user 1168: sub has_user_session { 1169: my ($lonid,$udom,$uname) = @_; 1170: my $result = &reply(join(':','userhassession', 1171: map {&escape($_)} ($udom,$uname)),$lonid); 1172: return 1 if ($result eq 'ok'); 1173: 1174: return 0; 1175: } 1176: 1177: # --------- determine least loaded server in a user's domain which allows login 1178: 1179: sub choose_server { 1180: my ($udom,$checkloginvia,$required,$skiploadbal) = @_; 1181: my %domconfhash = &Apache::loncommon::get_domainconf($udom); 1182: my %servers = &get_servers($udom); 1183: my $lowest_load = 30000; 1184: my ($login_host,$hostname,$portal_path,$isredirect,$balancers); 1185: if ($skiploadbal) { 1186: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom); 1187: unless (defined($cached)) { 1188: my $cachetime = 60*60*24; 1189: my %domconfig = 1190: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom); 1191: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1192: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'}, 1193: $cachetime); 1194: } 1195: } 1196: } 1197: foreach my $lonhost (keys(%servers)) { 1198: if ($skiploadbal) { 1199: if (ref($balancers) eq 'HASH') { 1200: next if (exists($balancers->{$lonhost})); 1201: } 1202: } 1203: my $loginvia; 1204: if ($checkloginvia) { 1205: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost}; 1206: if ($loginvia) { 1207: my ($server,$path) = split(/:/,$loginvia); 1208: ($login_host, $lowest_load) = 1209: &compare_server_load($server, $login_host, $lowest_load, $required); 1210: if ($login_host eq $server) { 1211: $portal_path = $path; 1212: $isredirect = 1; 1213: } 1214: } else { 1215: ($login_host, $lowest_load) = 1216: &compare_server_load($lonhost, $login_host, $lowest_load, $required); 1217: if ($login_host eq $lonhost) { 1218: $portal_path = ''; 1219: $isredirect = ''; 1220: } 1221: } 1222: } else { 1223: ($login_host, $lowest_load) = 1224: &compare_server_load($lonhost, $login_host, $lowest_load, $required); 1225: } 1226: } 1227: if ($login_host ne '') { 1228: $hostname = &hostname($login_host); 1229: } 1230: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load); 1231: } 1232: 1233: sub get_course_sessions { 1234: my ($cnum,$cdom,$lastactivity) = @_; 1235: my %servers = &internet_dom_servers($cdom); 1236: my %returnhash; 1237: foreach my $server (sort(keys(%servers))) { 1238: my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server); 1239: my @pairs=split(/\&/,$rep); 1240: unless (($rep eq 'unknown_cmd') || ($rep =~ /^error/)) { 1241: foreach my $item (@pairs) { 1242: my ($key,$value)=split(/=/,$item,2); 1243: $key = &unescape($key); 1244: next if ($key =~ /^error: 2 /); 1245: if (exists($returnhash{$key})) { 1246: next if ($value < $returnhash{$key}); 1247: } 1248: $returnhash{$key}=$value; 1249: } 1250: } 1251: } 1252: return %returnhash; 1253: } 1254: 1255: # --------------------------------------------- Try to change a user's password 1256: 1257: sub changepass { 1258: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_; 1259: $currentpass = &escape($currentpass); 1260: $newpass = &escape($newpass); 1261: my $lonhost = $perlvar{'lonHostID'}; 1262: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost", 1263: $server); 1264: if (! $answer) { 1265: &logthis("No reply on password change request to $server ". 1266: "by $uname in domain $udom."); 1267: } elsif ($answer =~ "^ok") { 1268: &logthis("$uname in $udom successfully changed their password ". 1269: "on $server."); 1270: } elsif ($answer =~ "^pwchange_failure") { 1271: &logthis("$uname in $udom was unable to change their password ". 1272: "on $server. The action was blocked by either lcpasswd ". 1273: "or pwchange"); 1274: } elsif ($answer =~ "^non_authorized") { 1275: &logthis("$uname in $udom did not get their password correct when ". 1276: "attempting to change it on $server."); 1277: } elsif ($answer =~ "^auth_mode_error") { 1278: &logthis("$uname in $udom attempted to change their password despite ". 1279: "not being locally or internally authenticated on $server."); 1280: } elsif ($answer =~ "^unknown_user") { 1281: &logthis("$uname in $udom attempted to change their password ". 1282: "on $server but were unable to because $server is not ". 1283: "their home server."); 1284: } elsif ($answer =~ "^refused") { 1285: &logthis("$server refused to change $uname in $udom password because ". 1286: "it was sent an unencrypted request to change the password."); 1287: } elsif ($answer =~ "invalid_client") { 1288: &logthis("$server refused to change $uname in $udom password because ". 1289: "it was a reset by e-mail originating from an invalid server."); 1290: } elsif ($answer =~ "^prioruse") { 1291: &logthis("$server refused to change $uname in $udom password because ". 1292: "the password had been used before"); 1293: } 1294: return $answer; 1295: } 1296: 1297: # ----------------------- Try to determine user's current authentication scheme 1298: 1299: sub queryauthenticate { 1300: my ($uname,$udom)=@_; 1301: my $uhome=&homeserver($uname,$udom); 1302: if (!$uhome) { 1303: &logthis("User $uname at $udom is unknown when looking for authentication mechanism"); 1304: return 'no_host'; 1305: } 1306: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome); 1307: if ($answer =~ /^(unknown_user|refused|con_lost)/) { 1308: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); 1309: } 1310: return $answer; 1311: } 1312: 1313: # --------- Try to authenticate user from domain's lib servers (first this one) 1314: 1315: sub authenticate { 1316: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_; 1317: $upass=&escape($upass); 1318: $uname= &LONCAPA::clean_username($uname); 1319: my $uhome=&homeserver($uname,$udom,1); 1320: my $newhome; 1321: if ((!$uhome) || ($uhome eq 'no_host')) { 1322: # Maybe the machine was offline and only re-appeared again recently? 1323: &reconlonc(); 1324: # One more 1325: $uhome=&homeserver($uname,$udom,1); 1326: if (($uhome eq 'no_host') && $checkdefauth) { 1327: if (defined(&domain($udom,'primary'))) { 1328: $newhome=&domain($udom,'primary'); 1329: } 1330: if ($newhome ne '') { 1331: $uhome = $newhome; 1332: } 1333: } 1334: if ((!$uhome) || ($uhome eq 'no_host')) { 1335: &logthis("User $uname at $udom is unknown in authenticate"); 1336: return 'no_host'; 1337: } 1338: } 1339: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome); 1340: if ($answer eq 'authorized') { 1341: if ($newhome) { 1342: &logthis("User $uname at $udom authorized by $uhome, but needs account"); 1343: return 'no_account_on_host'; 1344: } else { 1345: &logthis("User $uname at $udom authorized by $uhome"); 1346: return $uhome; 1347: } 1348: } 1349: if ($answer eq 'non_authorized') { 1350: &logthis("User $uname at $udom rejected by $uhome"); 1351: return 'no_host'; 1352: } 1353: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); 1354: return 'no_host'; 1355: } 1356: 1357: sub can_host_session { 1358: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_; 1359: my $canhost = 1; 1360: my $host_idn = &Apache::lonnet::internet_dom($lonhost); 1361: if (ref($remotesessions) eq 'HASH') { 1362: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') { 1363: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) { 1364: $canhost = 0; 1365: } else { 1366: $canhost = 1; 1367: } 1368: } 1369: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') { 1370: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) { 1371: $canhost = 1; 1372: } else { 1373: $canhost = 0; 1374: } 1375: } 1376: if ($canhost) { 1377: if ($remotesessions->{'version'} ne '') { 1378: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/); 1379: if ($reqmajor ne '' && $reqminor ne '') { 1380: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) { 1381: my $major = $1; 1382: my $minor = $2; 1383: if (($major < $reqmajor ) || 1384: (($major == $reqmajor) && ($minor < $reqminor))) { 1385: $canhost = 0; 1386: } 1387: } else { 1388: $canhost = 0; 1389: } 1390: } 1391: } 1392: } 1393: } 1394: if ($canhost) { 1395: if (ref($hostedsessions) eq 'HASH') { 1396: my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); 1397: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); 1398: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') { 1399: if (($uint_dom ne '') && 1400: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) { 1401: $canhost = 0; 1402: } else { 1403: $canhost = 1; 1404: } 1405: } 1406: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') { 1407: if (($uint_dom ne '') && 1408: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) { 1409: $canhost = 1; 1410: } else { 1411: $canhost = 0; 1412: } 1413: } 1414: } 1415: } 1416: return $canhost; 1417: } 1418: 1419: sub spare_can_host { 1420: my ($udom,$uint_dom,$remotesessions,$try_server)=@_; 1421: my $canhost=1; 1422: my $try_server_hostname = &hostname($try_server); 1423: my $serverhomeID = &get_server_homeID($try_server_hostname); 1424: my $serverhomedom = &host_domain($serverhomeID); 1425: my %defdomdefaults = &get_domain_defaults($serverhomedom); 1426: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') { 1427: if ($defdomdefaults{'offloadnow'}{$try_server}) { 1428: $canhost = 0; 1429: } 1430: } 1431: if (($canhost) && ($uint_dom)) { 1432: my @intdoms; 1433: my $internet_names = &get_internet_names($try_server); 1434: if (ref($internet_names) eq 'ARRAY') { 1435: @intdoms = @{$internet_names}; 1436: } 1437: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) { 1438: my $remoterev = &get_server_loncaparev(undef,$try_server); 1439: $canhost = &can_host_session($udom,$try_server,$remoterev, 1440: $remotesessions, 1441: $defdomdefaults{'hostedsessions'}); 1442: } 1443: } 1444: return $canhost; 1445: } 1446: 1447: sub this_host_spares { 1448: my ($dom) = @_; 1449: my ($dom_in_use,$lonhost_in_use,$result); 1450: my @hosts = &current_machine_ids(); 1451: foreach my $lonhost (@hosts) { 1452: if (&host_domain($lonhost) eq $dom) { 1453: $dom_in_use = $dom; 1454: $lonhost_in_use = $lonhost; 1455: last; 1456: } 1457: } 1458: if ($dom_in_use ne '') { 1459: $result = &spares_for_offload($dom_in_use,$lonhost_in_use); 1460: } 1461: if (ref($result) ne 'HASH') { 1462: $lonhost_in_use = $perlvar{'lonHostID'}; 1463: $dom_in_use = &host_domain($lonhost_in_use); 1464: $result = &spares_for_offload($dom_in_use,$lonhost_in_use); 1465: if (ref($result) ne 'HASH') { 1466: $result = \%spareid; 1467: } 1468: } 1469: return $result; 1470: } 1471: 1472: sub spares_for_offload { 1473: my ($dom_in_use,$lonhost_in_use) = @_; 1474: my ($result,$cached)=&is_cached_new('spares',$dom_in_use); 1475: if (defined($cached)) { 1476: return $result; 1477: } else { 1478: my $cachetime = 60*60*24; 1479: my %domconfig = 1480: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use); 1481: if (ref($domconfig{'usersessions'}) eq 'HASH') { 1482: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') { 1483: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') { 1484: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime); 1485: } 1486: } 1487: } 1488: } 1489: return; 1490: } 1491: 1492: sub get_lonbalancer_config { 1493: my ($servers) = @_; 1494: my ($currbalancer,$currtargets); 1495: if (ref($servers) eq 'HASH') { 1496: foreach my $server (keys(%{$servers})) { 1497: my %what = ( 1498: spareid => 1, 1499: perlvar => 1, 1500: ); 1501: my ($result,$returnhash) = &get_remote_globals($server,\%what); 1502: if ($result eq 'ok') { 1503: if (ref($returnhash) eq 'HASH') { 1504: if (ref($returnhash->{'perlvar'}) eq 'HASH') { 1505: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') { 1506: $currbalancer = $server; 1507: $currtargets = {}; 1508: if (ref($returnhash->{'spareid'}) eq 'HASH') { 1509: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') { 1510: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'}; 1511: } 1512: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') { 1513: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'}; 1514: } 1515: } 1516: last; 1517: } 1518: } 1519: } 1520: } 1521: } 1522: } 1523: return ($currbalancer,$currtargets); 1524: } 1525: 1526: sub check_loadbalancing { 1527: my ($uname,$udom,$caller) = @_; 1528: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom, 1529: $rule_in_effect,$offloadto,$otherserver,$setcookie,$dom_balancers); 1530: my $lonhost = $perlvar{'lonHostID'}; 1531: my @hosts = &current_machine_ids(); 1532: my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); 1533: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id); 1534: my $intdom = &Apache::lonnet::internet_dom($lonhost); 1535: my $serverhomedom = &host_domain($lonhost); 1536: my $domneedscache; 1537: my $cachetime = 60*60*24; 1538: 1539: if (($uintdom ne '') && ($uintdom eq $intdom)) { 1540: $dom_in_use = $udom; 1541: $homeintdom = 1; 1542: } else { 1543: $dom_in_use = $serverhomedom; 1544: } 1545: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use); 1546: unless (defined($cached)) { 1547: my %domconfig = 1548: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use); 1549: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1550: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime); 1551: } else { 1552: $domneedscache = $dom_in_use; 1553: } 1554: } 1555: if (ref($result) eq 'HASH') { 1556: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = 1557: &check_balancer_result($result,@hosts); 1558: if ($is_balancer) { 1559: if (ref($currrules) eq 'HASH') { 1560: if ($homeintdom) { 1561: if ($uname ne '') { 1562: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) { 1563: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname); 1564: if (($currrules->{'_LC_author'} ne '') && ($is_author)) { 1565: $rule_in_effect = $currrules->{'_LC_author'}; 1566: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) { 1567: $rule_in_effect = $currrules->{'_LC_adv'} 1568: } 1569: } 1570: if ($rule_in_effect eq '') { 1571: my %userenv = &userenvironment($udom,$uname,'inststatus'); 1572: if ($userenv{'inststatus'} ne '') { 1573: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'}); 1574: my ($othertitle,$usertypes,$types) = 1575: &Apache::loncommon::sorted_inst_types($udom); 1576: if (ref($types) eq 'ARRAY') { 1577: foreach my $type (@{$types}) { 1578: if (grep(/^\Q$type\E$/,@statuses)) { 1579: if (exists($currrules->{$type})) { 1580: $rule_in_effect = $currrules->{$type}; 1581: } 1582: } 1583: } 1584: } 1585: } else { 1586: if (exists($currrules->{'default'})) { 1587: $rule_in_effect = $currrules->{'default'}; 1588: } 1589: } 1590: } 1591: } else { 1592: if (exists($currrules->{'default'})) { 1593: $rule_in_effect = $currrules->{'default'}; 1594: } 1595: } 1596: } else { 1597: if ($currrules->{'_LC_external'} ne '') { 1598: $rule_in_effect = $currrules->{'_LC_external'}; 1599: } 1600: } 1601: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, 1602: $uname,$udom); 1603: } 1604: } 1605: } elsif (($homeintdom) && ($udom ne $serverhomedom)) { 1606: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom); 1607: unless (defined($cached)) { 1608: my %domconfig = 1609: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom); 1610: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1611: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime); 1612: } else { 1613: $domneedscache = $serverhomedom; 1614: } 1615: } 1616: if (ref($result) eq 'HASH') { 1617: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = 1618: &check_balancer_result($result,@hosts); 1619: if ($is_balancer) { 1620: if (ref($currrules) eq 'HASH') { 1621: if ($currrules->{'_LC_internetdom'} ne '') { 1622: $rule_in_effect = $currrules->{'_LC_internetdom'}; 1623: } 1624: } 1625: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, 1626: $uname,$udom); 1627: } 1628: } else { 1629: if ($perlvar{'lonBalancer'} eq 'yes') { 1630: $is_balancer = 1; 1631: $offloadto = &this_host_spares($dom_in_use); 1632: } 1633: unless (defined($cached)) { 1634: $domneedscache = $serverhomedom; 1635: } 1636: } 1637: } else { 1638: if ($perlvar{'lonBalancer'} eq 'yes') { 1639: $is_balancer = 1; 1640: $offloadto = &this_host_spares($dom_in_use); 1641: } 1642: unless (defined($cached)) { 1643: $domneedscache = $serverhomedom; 1644: } 1645: } 1646: if ($domneedscache) { 1647: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime); 1648: } 1649: if ($is_balancer) { 1650: my $lowest_load = 30000; 1651: if (ref($offloadto) eq 'HASH') { 1652: if (ref($offloadto->{'primary'}) eq 'ARRAY') { 1653: foreach my $try_server (@{$offloadto->{'primary'}}) { 1654: ($otherserver,$lowest_load) = 1655: &compare_server_load($try_server,$otherserver,$lowest_load); 1656: } 1657: } 1658: my $found_server = ($otherserver ne '' && $lowest_load < 100); 1659: 1660: if (!$found_server) { 1661: if (ref($offloadto->{'default'}) eq 'ARRAY') { 1662: foreach my $try_server (@{$offloadto->{'default'}}) { 1663: ($otherserver,$lowest_load) = 1664: &compare_server_load($try_server,$otherserver,$lowest_load); 1665: } 1666: } 1667: } 1668: } elsif (ref($offloadto) eq 'ARRAY') { 1669: if (@{$offloadto} == 1) { 1670: $otherserver = $offloadto->[0]; 1671: } elsif (@{$offloadto} > 1) { 1672: foreach my $try_server (@{$offloadto}) { 1673: ($otherserver,$lowest_load) = 1674: &compare_server_load($try_server,$otherserver,$lowest_load); 1675: } 1676: } 1677: } 1678: unless ($caller eq 'login') { 1679: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) { 1680: $is_balancer = 0; 1681: if ($uname ne '' && $udom ne '') { 1682: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { 1683: &appenv({'user.loadbalexempt' => $lonhost, 1684: 'user.loadbalcheck.time' => time}); 1685: } 1686: } 1687: } 1688: } 1689: unless ($homeintdom) { 1690: undef($setcookie); 1691: } 1692: } 1693: return ($is_balancer,$otherserver,$setcookie,$offloadto,$dom_balancers); 1694: } 1695: 1696: sub check_balancer_result { 1697: my ($result,@hosts) = @_; 1698: my ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); 1699: if (ref($result) eq 'HASH') { 1700: if ($result->{'lonhost'} ne '') { 1701: my $currbalancer = $result->{'lonhost'}; 1702: if (grep(/^\Q$currbalancer\E$/,@hosts)) { 1703: $is_balancer = 1; 1704: $currtargets = $result->{'targets'}; 1705: $currrules = $result->{'rules'}; 1706: } 1707: $dom_balancers = $currbalancer; 1708: } else { 1709: if (keys(%{$result})) { 1710: foreach my $key (keys(%{$result})) { 1711: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) && 1712: (ref($result->{$key}) eq 'HASH')) { 1713: $is_balancer = 1; 1714: $currrules = $result->{$key}{'rules'}; 1715: $currtargets = $result->{$key}{'targets'}; 1716: $setcookie = $result->{$key}{'cookie'}; 1717: last; 1718: } 1719: } 1720: $dom_balancers = join(',',sort(keys(%{$result}))); 1721: } 1722: } 1723: } 1724: return ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); 1725: } 1726: 1727: sub get_loadbalancer_targets { 1728: my ($rule_in_effect,$currtargets,$uname,$udom) = @_; 1729: my $offloadto; 1730: if ($rule_in_effect eq 'none') { 1731: return [$perlvar{'lonHostID'}]; 1732: } elsif ($rule_in_effect eq '') { 1733: $offloadto = $currtargets; 1734: } else { 1735: if ($rule_in_effect eq 'homeserver') { 1736: my $homeserver = &homeserver($uname,$udom); 1737: if ($homeserver ne 'no_host') { 1738: $offloadto = [$homeserver]; 1739: } 1740: } elsif ($rule_in_effect eq 'externalbalancer') { 1741: my %domconfig = 1742: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom); 1743: if (ref($domconfig{'loadbalancing'}) eq 'HASH') { 1744: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') { 1745: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') { 1746: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}]; 1747: } 1748: } 1749: } else { 1750: my %servers = &internet_dom_servers($udom); 1751: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers); 1752: if (&hostname($remotebalancer) ne '') { 1753: $offloadto = [$remotebalancer]; 1754: } 1755: } 1756: } elsif (&hostname($rule_in_effect) ne '') { 1757: $offloadto = [$rule_in_effect]; 1758: } 1759: } 1760: return $offloadto; 1761: } 1762: 1763: sub internet_dom_servers { 1764: my ($dom) = @_; 1765: my (%uniqservers,%servers); 1766: my $primaryserver = &hostname(&domain($dom,'primary')); 1767: my @machinedoms = &machine_domains($primaryserver); 1768: foreach my $mdom (@machinedoms) { 1769: my %currservers = %servers; 1770: my %server = &get_servers($mdom); 1771: %servers = (%currservers,%server); 1772: } 1773: my %by_hostname; 1774: foreach my $id (keys(%servers)) { 1775: push(@{$by_hostname{$servers{$id}}},$id); 1776: } 1777: foreach my $hostname (sort(keys(%by_hostname))) { 1778: if (@{$by_hostname{$hostname}} > 1) { 1779: my $match = 0; 1780: foreach my $id (@{$by_hostname{$hostname}}) { 1781: if (&host_domain($id) eq $dom) { 1782: $uniqservers{$id} = $hostname; 1783: $match = 1; 1784: } 1785: } 1786: unless ($match) { 1787: $uniqservers{$by_hostname{$hostname}[0]} = $hostname; 1788: } 1789: } else { 1790: $uniqservers{$by_hostname{$hostname}[0]} = $hostname; 1791: } 1792: } 1793: return %uniqservers; 1794: } 1795: 1796: sub trusted_domains { 1797: my ($cmdtype,$calldom) = @_; 1798: my ($trusted,$untrusted); 1799: if (&domain($calldom) eq '') { 1800: return ($trusted,$untrusted); 1801: } 1802: unless ($cmdtype =~ /^(content|shared|enroll|coaurem|othcoau|domroles|catalog|reqcrs|msg)$/) { 1803: return ($trusted,$untrusted); 1804: } 1805: my $callprimary = &domain($calldom,'primary'); 1806: my $intcalldom = &Apache::lonnet::internet_dom($callprimary); 1807: if ($intcalldom eq '') { 1808: return ($trusted,$untrusted); 1809: } 1810: 1811: my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new('trust',$calldom); 1812: unless (defined($cached)) { 1813: my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$calldom); 1814: &Apache::lonnet::do_cache_new('trust',$calldom,$domconfig{'trust'},3600); 1815: $trustconfig = $domconfig{'trust'}; 1816: } 1817: if (ref($trustconfig)) { 1818: my (%possexc,%possinc,@allexc,@allinc); 1819: if (ref($trustconfig->{$cmdtype}) eq 'HASH') { 1820: if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') { 1821: map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}}; 1822: } 1823: if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') { 1824: $possinc{$intcalldom} = 1; 1825: map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}}; 1826: } 1827: } 1828: if (keys(%possexc)) { 1829: if (keys(%possinc)) { 1830: foreach my $key (sort(keys(%possexc))) { 1831: next if ($key eq $intcalldom); 1832: unless ($possinc{$key}) { 1833: push(@allexc,$key); 1834: } 1835: } 1836: } else { 1837: @allexc = sort(keys(%possexc)); 1838: } 1839: } 1840: if (keys(%possinc)) { 1841: $possinc{$intcalldom} = 1; 1842: @allinc = sort(keys(%possinc)); 1843: } 1844: if ((@allexc > 0) || (@allinc > 0)) { 1845: my %doms_by_intdom; 1846: my %allintdoms = &all_host_intdom(); 1847: my %alldoms = &all_host_domain(); 1848: foreach my $key (%allintdoms) { 1849: if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') { 1850: unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) { 1851: push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key}); 1852: } 1853: } else { 1854: $doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}]; 1855: } 1856: } 1857: foreach my $exc (@allexc) { 1858: if (ref($doms_by_intdom{$exc}) eq 'ARRAY') { 1859: push(@{$untrusted},@{$doms_by_intdom{$exc}}); 1860: } 1861: } 1862: foreach my $inc (@allinc) { 1863: if (ref($doms_by_intdom{$inc}) eq 'ARRAY') { 1864: push(@{$trusted},@{$doms_by_intdom{$inc}}); 1865: } 1866: } 1867: } 1868: } 1869: return ($trusted,$untrusted); 1870: } 1871: 1872: sub will_trust { 1873: my ($cmdtype,$domain,$possdom) = @_; 1874: return 1 if ($domain eq $possdom); 1875: my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom); 1876: my $willtrust; 1877: if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) { 1878: if (grep(/^\Q$domain\E$/,@{$trustedref})) { 1879: $willtrust = 1; 1880: } 1881: } elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) { 1882: unless (grep(/^\Q$domain\E$/,@{$untrustedref})) { 1883: $willtrust = 1; 1884: } 1885: } else { 1886: $willtrust = 1; 1887: } 1888: return $willtrust; 1889: } 1890: 1891: # ---------------------- Find the homebase for a user from domain's lib servers 1892: 1893: my %homecache; 1894: sub homeserver { 1895: my ($uname,$udom,$ignoreBadCache)=@_; 1896: my $index="$uname:$udom"; 1897: 1898: if (exists($homecache{$index})) { return $homecache{$index}; } 1899: 1900: my %servers = &get_servers($udom,'library'); 1901: foreach my $tryserver (keys(%servers)) { 1902: next if ($ignoreBadCache ne 'true' && 1903: exists($badServerCache{$tryserver})); 1904: 1905: my $answer=reply("home:$udom:$uname",$tryserver); 1906: if ($answer eq 'found') { 1907: delete($badServerCache{$tryserver}); 1908: return $homecache{$index}=$tryserver; 1909: } elsif ($answer eq 'no_host') { 1910: $badServerCache{$tryserver}=1; 1911: } 1912: } 1913: return 'no_host'; 1914: } 1915: 1916: # ----- Find the usernames behind a list of student/employee IDs or clicker IDs 1917: 1918: sub idget { 1919: my ($udom,$idsref,$namespace)=@_; 1920: my %returnhash=(); 1921: my @ids=(); 1922: if (ref($idsref) eq 'ARRAY') { 1923: @ids = @{$idsref}; 1924: } else { 1925: return %returnhash; 1926: } 1927: if ($namespace eq '') { 1928: $namespace = 'ids'; 1929: } 1930: 1931: my %servers = &get_servers($udom,'library'); 1932: foreach my $tryserver (keys(%servers)) { 1933: my $idlist=join('&', map { &escape($_); } @ids); 1934: if ($namespace eq 'ids') { 1935: $idlist=~tr/A-Z/a-z/; 1936: } 1937: my $reply; 1938: if ($namespace eq 'ids') { 1939: $reply=&reply("idget:$udom:".$idlist,$tryserver); 1940: } else { 1941: $reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver); 1942: } 1943: my @answer=(); 1944: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) { 1945: @answer=split(/\&/,$reply); 1946: } ; 1947: my $i; 1948: for ($i=0;$i<=$#ids;$i++) { 1949: if ($answer[$i]) { 1950: $returnhash{$ids[$i]}=&unescape($answer[$i]); 1951: } 1952: } 1953: } 1954: return %returnhash; 1955: } 1956: 1957: # ------------------------------------- Find the IDs behind a list of usernames 1958: 1959: sub idrget { 1960: my ($udom,@unames)=@_; 1961: my %returnhash=(); 1962: foreach my $uname (@unames) { 1963: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1]; 1964: } 1965: return %returnhash; 1966: } 1967: 1968: # Store away a list of names and associated student/employee IDs or clicker IDs 1969: 1970: sub idput { 1971: my ($udom,$idsref,$uhom,$namespace)=@_; 1972: my %servers=(); 1973: my %ids=(); 1974: my %byid = (); 1975: if (ref($idsref) eq 'HASH') { 1976: %ids=%{$idsref}; 1977: } 1978: if ($namespace eq '') { 1979: $namespace = 'ids'; 1980: } 1981: foreach my $uname (keys(%ids)) { 1982: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname); 1983: if ($uhom eq '') { 1984: $uhom=&homeserver($uname,$udom); 1985: } 1986: if ($uhom ne 'no_host') { 1987: my $esc_unam=&escape($uname); 1988: if ($namespace eq 'ids') { 1989: my $id=&escape($ids{$uname}); 1990: $id=~tr/A-Z/a-z/; 1991: my $esc_unam=&escape($uname); 1992: $servers{$uhom}.=$id.'='.$esc_unam.'&'; 1993: } else { 1994: my @currids = split(/,/,$ids{$uname}); 1995: foreach my $id (@currids) { 1996: $byid{$uhom}{$id} .= $uname.','; 1997: } 1998: } 1999: } 2000: } 2001: if ($namespace eq 'clickers') { 2002: foreach my $server (keys(%byid)) { 2003: if (ref($byid{$server}) eq 'HASH') { 2004: foreach my $id (keys(%{$byid{$server}})) { 2005: $byid{$server} =~ s/,$//; 2006: $servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&'; 2007: } 2008: } 2009: } 2010: } 2011: foreach my $server (keys(%servers)) { 2012: $servers{$server} =~ s/\&$//; 2013: if ($namespace eq 'ids') { 2014: &critical('idput:'.$udom.':'.$servers{$server},$server); 2015: } else { 2016: &critical('updateclickers:'.$udom.':add:'.$servers{$server},$server); 2017: } 2018: } 2019: } 2020: 2021: # ------------- Delete unwanted student/employee IDs or clicker IDs from domain 2022: 2023: sub iddel { 2024: my ($udom,$idshashref,$uhome,$namespace)=@_; 2025: my %result=(); 2026: my %ids=(); 2027: my %byid = (); 2028: if (ref($idshashref) eq 'HASH') { 2029: %ids=%{$idshashref}; 2030: } else { 2031: return %result; 2032: } 2033: if ($namespace eq '') { 2034: $namespace = 'ids'; 2035: } 2036: my %servers=(); 2037: while (my ($id,$unamestr) = each(%ids)) { 2038: if ($namespace eq 'ids') { 2039: my $uhom = $uhome; 2040: if ($uhom eq '') { 2041: $uhom=&homeserver($unamestr,$udom); 2042: } 2043: if ($uhom ne 'no_host') { 2044: $servers{$uhom}.='&'.&escape($id); 2045: } 2046: } else { 2047: my @curritems = split(/,/,$ids{$id}); 2048: foreach my $uname (@curritems) { 2049: my $uhom = $uhome; 2050: if ($uhom eq '') { 2051: $uhom=&homeserver($uname,$udom); 2052: } 2053: if ($uhom ne 'no_host') { 2054: $byid{$uhom}{$id} .= $uname.','; 2055: } 2056: } 2057: } 2058: } 2059: if ($namespace eq 'clickers') { 2060: foreach my $server (keys(%byid)) { 2061: if (ref($byid{$server}) eq 'HASH') { 2062: foreach my $id (keys(%{$byid{$server}})) { 2063: $byid{$server}{$id} =~ s/,$//; 2064: $servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&'; 2065: } 2066: } 2067: } 2068: } 2069: foreach my $server (keys(%servers)) { 2070: $servers{$server} =~ s/\&$//; 2071: if ($namespace eq 'ids') { 2072: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome); 2073: } elsif ($namespace eq 'clickers') { 2074: $result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server); 2075: } 2076: } 2077: return %result; 2078: } 2079: 2080: # ----- Update clicker ID-to-username look-ups in clickers.db on library server 2081: 2082: sub updateclickers { 2083: my ($udom,$action,$idshashref,$uhome,$critical) = @_; 2084: my %clickers; 2085: if (ref($idshashref) eq 'HASH') { 2086: %clickers=%{$idshashref}; 2087: } else { 2088: return; 2089: } 2090: my $items=''; 2091: foreach my $item (keys(%clickers)) { 2092: $items.=&escape($item).'='.&escape($clickers{$item}).'&'; 2093: } 2094: $items=~s/\&$//; 2095: my $request = "updateclickers:$udom:$action:$items"; 2096: if ($critical) { 2097: return &critical($request,$uhome); 2098: } else { 2099: return &reply($request,$uhome); 2100: } 2101: } 2102: 2103: # ------------------------------dump from db file owned by domainconfig user 2104: sub dump_dom { 2105: my ($namespace, $udom, $regexp) = @_; 2106: 2107: $udom ||= $env{'user.domain'}; 2108: 2109: return () unless $udom; 2110: 2111: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp); 2112: } 2113: 2114: # ------------------------------------------ get items from domain db files 2115: 2116: sub get_dom { 2117: my ($namespace,$storearr,$udom,$uhome)=@_; 2118: return if ($udom eq 'public'); 2119: my $items=''; 2120: foreach my $item (@$storearr) { 2121: $items.=&escape($item).'&'; 2122: } 2123: $items=~s/\&$//; 2124: if (!$udom) { 2125: $udom=$env{'user.domain'}; 2126: return if ($udom eq 'public'); 2127: if (defined(&domain($udom,'primary'))) { 2128: $uhome=&domain($udom,'primary'); 2129: } else { 2130: undef($uhome); 2131: } 2132: } else { 2133: if (!$uhome) { 2134: if (defined(&domain($udom,'primary'))) { 2135: $uhome=&domain($udom,'primary'); 2136: } 2137: } 2138: } 2139: if ($udom && $uhome && ($uhome ne 'no_host')) { 2140: my $rep; 2141: if ($namespace =~ /^enc/) { 2142: $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome); 2143: } else { 2144: $rep=&reply("getdom:$udom:$namespace:$items",$uhome); 2145: } 2146: my %returnhash; 2147: if ($rep eq '' || $rep =~ /^error: 2 /) { 2148: return %returnhash; 2149: } 2150: my @pairs=split(/\&/,$rep); 2151: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) { 2152: return @pairs; 2153: } 2154: my $i=0; 2155: foreach my $item (@$storearr) { 2156: $returnhash{$item}=&thaw_unescape($pairs[$i]); 2157: $i++; 2158: } 2159: return %returnhash; 2160: } else { 2161: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)"); 2162: } 2163: } 2164: 2165: # -------------------------------------------- put items in domain db files 2166: 2167: sub put_dom { 2168: my ($namespace,$storehash,$udom,$uhome)=@_; 2169: if (!$udom) { 2170: $udom=$env{'user.domain'}; 2171: if (defined(&domain($udom,'primary'))) { 2172: $uhome=&domain($udom,'primary'); 2173: } else { 2174: undef($uhome); 2175: } 2176: } else { 2177: if (!$uhome) { 2178: if (defined(&domain($udom,'primary'))) { 2179: $uhome=&domain($udom,'primary'); 2180: } 2181: } 2182: } 2183: if ($udom && $uhome && ($uhome ne 'no_host')) { 2184: my $items=''; 2185: foreach my $item (keys(%$storehash)) { 2186: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 2187: } 2188: $items=~s/\&$//; 2189: if ($namespace =~ /^enc/) { 2190: return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome); 2191: } else { 2192: return &reply("putdom:$udom:$namespace:$items",$uhome); 2193: } 2194: } else { 2195: &logthis("put_dom failed - no homeserver and/or domain"); 2196: } 2197: } 2198: 2199: # --------------------- newput for items in db file owned by domainconfig user 2200: sub newput_dom { 2201: my ($namespace,$storehash,$udom) = @_; 2202: my $result; 2203: if (!$udom) { 2204: $udom=$env{'user.domain'}; 2205: } 2206: if ($udom) { 2207: my $uname = &get_domainconfiguser($udom); 2208: $result = &newput($namespace,$storehash,$udom,$uname); 2209: } 2210: return $result; 2211: } 2212: 2213: # --------------------- delete for items in db file owned by domainconfig user 2214: sub del_dom { 2215: my ($namespace,$storearr,$udom)=@_; 2216: if (ref($storearr) eq 'ARRAY') { 2217: if (!$udom) { 2218: $udom=$env{'user.domain'}; 2219: } 2220: if ($udom) { 2221: my $uname = &get_domainconfiguser($udom); 2222: return &del($namespace,$storearr,$udom,$uname); 2223: } 2224: } 2225: } 2226: 2227: # ----------------------------------construct domainconfig user for a domain 2228: sub get_domainconfiguser { 2229: my ($udom) = @_; 2230: return $udom.'-domainconfig'; 2231: } 2232: 2233: sub retrieve_inst_usertypes { 2234: my ($udom) = @_; 2235: my (%returnhash,@order); 2236: my %domdefs = &Apache::lonnet::get_domain_defaults($udom); 2237: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') && 2238: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) { 2239: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'}); 2240: } else { 2241: if (defined(&domain($udom,'primary'))) { 2242: my $uhome=&domain($udom,'primary'); 2243: my $rep=&reply("inst_usertypes:$udom",$uhome); 2244: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) { 2245: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom"); 2246: return (\%returnhash,\@order); 2247: } 2248: my ($hashitems,$orderitems) = split(/:/,$rep); 2249: my @pairs=split(/\&/,$hashitems); 2250: foreach my $item (@pairs) { 2251: my ($key,$value)=split(/=/,$item,2); 2252: $key = &unescape($key); 2253: next if ($key =~ /^error: 2 /); 2254: $returnhash{$key}=&thaw_unescape($value); 2255: } 2256: my @esc_order = split(/\&/,$orderitems); 2257: foreach my $item (@esc_order) { 2258: push(@order,&unescape($item)); 2259: } 2260: } else { 2261: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom"); 2262: } 2263: return (\%returnhash,\@order); 2264: } 2265: } 2266: 2267: sub is_domainimage { 2268: my ($url) = @_; 2269: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+[^/]-) { 2270: if (&domain($1) ne '') { 2271: return '1'; 2272: } 2273: } 2274: return; 2275: } 2276: 2277: sub inst_directory_query { 2278: my ($srch) = @_; 2279: my $udom = $srch->{'srchdomain'}; 2280: my %results; 2281: my $homeserver = &domain($udom,'primary'); 2282: my $outcome; 2283: if ($homeserver ne '') { 2284: unless ($homeserver eq $perlvar{'lonHostID'}) { 2285: if ($srch->{'srchby'} eq 'email') { 2286: my $lcrev = &get_server_loncaparev($udom,$homeserver); 2287: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 2288: if (($major eq '' && $minor eq '') || ($major < 2) || 2289: (($major == 2) && ($minor < 12))) { 2290: return; 2291: } 2292: } 2293: } 2294: my $queryid=&reply("querysend:instdirsearch:". 2295: &escape($srch->{'srchby'}).':'. 2296: &escape($srch->{'srchterm'}).':'. 2297: &escape($srch->{'srchtype'}),$homeserver); 2298: my $host=&hostname($homeserver); 2299: if ($queryid !~/^\Q$host\E\_/) { 2300: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom); 2301: return; 2302: } 2303: my $response = &get_query_reply($queryid); 2304: my $maxtries = 5; 2305: my $tries = 1; 2306: while (($response=~/^timeout/) && ($tries < $maxtries)) { 2307: $response = &get_query_reply($queryid); 2308: $tries ++; 2309: } 2310: 2311: if (!&error($response) && $response ne 'refused') { 2312: if ($response eq 'unavailable') { 2313: $outcome = $response; 2314: } else { 2315: $outcome = 'ok'; 2316: my @matches = split(/\n/,$response); 2317: foreach my $match (@matches) { 2318: my ($key,$value) = split(/=/,$match); 2319: $results{&unescape($key).':'.$udom} = &thaw_unescape($value); 2320: } 2321: } 2322: } 2323: } 2324: return ($outcome,%results); 2325: } 2326: 2327: sub usersearch { 2328: my ($srch) = @_; 2329: my $dom = $srch->{'srchdomain'}; 2330: my %results; 2331: my %libserv = &all_library(); 2332: my $query = 'usersearch'; 2333: foreach my $tryserver (keys(%libserv)) { 2334: if (&host_domain($tryserver) eq $dom) { 2335: unless ($tryserver eq $perlvar{'lonHostID'}) { 2336: if ($srch->{'srchby'} eq 'email') { 2337: my $lcrev = &get_server_loncaparev($dom,$tryserver); 2338: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); 2339: next if (($major eq '' && $minor eq '') || ($major < 2) || 2340: (($major == 2) && ($minor < 12))); 2341: } 2342: } 2343: my $host=&hostname($tryserver); 2344: my $queryid= 2345: &reply("querysend:".&escape($query).':'. 2346: &escape($srch->{'srchby'}).':'. 2347: &escape($srch->{'srchtype'}).':'. 2348: &escape($srch->{'srchterm'}),$tryserver); 2349: if ($queryid !~/^\Q$host\E\_/) { 2350: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver); 2351: next; 2352: } 2353: my $reply = &get_query_reply($queryid); 2354: my $maxtries = 1; 2355: my $tries = 1; 2356: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 2357: $reply = &get_query_reply($queryid); 2358: $tries ++; 2359: } 2360: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 2361: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries); 2362: } else { 2363: my @matches; 2364: if ($reply =~ /\n/) { 2365: @matches = split(/\n/,$reply); 2366: } else { 2367: @matches = split(/\&/,$reply); 2368: } 2369: foreach my $match (@matches) { 2370: my ($uname,$udom,%userhash); 2371: foreach my $entry (split(/:/,$match)) { 2372: my ($key,$value) = 2373: map {&unescape($_);} split(/=/,$entry); 2374: $userhash{$key} = $value; 2375: if ($key eq 'username') { 2376: $uname = $value; 2377: } elsif ($key eq 'domain') { 2378: $udom = $value; 2379: } 2380: } 2381: $results{$uname.':'.$udom} = \%userhash; 2382: } 2383: } 2384: } 2385: } 2386: return %results; 2387: } 2388: 2389: sub get_instuser { 2390: my ($udom,$uname,$id) = @_; 2391: my $homeserver = &domain($udom,'primary'); 2392: my ($outcome,%results); 2393: if ($homeserver ne '') { 2394: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'. 2395: &escape($id).':'.&escape($udom),$homeserver); 2396: my $host=&hostname($homeserver); 2397: if ($queryid !~/^\Q$host\E\_/) { 2398: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom); 2399: return; 2400: } 2401: my $response = &get_query_reply($queryid); 2402: my $maxtries = 5; 2403: my $tries = 1; 2404: while (($response=~/^timeout/) && ($tries < $maxtries)) { 2405: $response = &get_query_reply($queryid); 2406: $tries ++; 2407: } 2408: if (!&error($response) && $response ne 'refused') { 2409: if ($response eq 'unavailable') { 2410: $outcome = $response; 2411: } else { 2412: $outcome = 'ok'; 2413: my @matches = split(/\n/,$response); 2414: foreach my $match (@matches) { 2415: my ($key,$value) = split(/=/,$match); 2416: $results{&unescape($key)} = &thaw_unescape($value); 2417: } 2418: } 2419: } 2420: } 2421: my %userinfo; 2422: if (ref($results{$uname}) eq 'HASH') { 2423: %userinfo = %{$results{$uname}}; 2424: } 2425: return ($outcome,%userinfo); 2426: } 2427: 2428: sub get_multiple_instusers { 2429: my ($udom,$users,$caller) = @_; 2430: my ($outcome,$results); 2431: if (ref($users) eq 'HASH') { 2432: my $count = keys(%{$users}); 2433: my $requested = &freeze_escape($users); 2434: my $homeserver = &domain($udom,'primary'); 2435: if ($homeserver ne '') { 2436: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver); 2437: my $host=&hostname($homeserver); 2438: if ($queryid !~/^\Q$host\E\_/) { 2439: &logthis('get_multiple_instusers invalid queryid: '.$queryid. 2440: ' for host: '.$homeserver.'in domain '.$udom); 2441: return ($outcome,$results); 2442: } 2443: my $response = &get_query_reply($queryid); 2444: my $maxtries = 5; 2445: if ($count > 100) { 2446: $maxtries = 1+int($count/20); 2447: } 2448: my $tries = 1; 2449: while (($response=~/^timeout/) && ($tries <= $maxtries)) { 2450: $response = &get_query_reply($queryid); 2451: $tries ++; 2452: } 2453: if ($response eq '') { 2454: $results = {}; 2455: foreach my $key (keys(%{$users})) { 2456: my ($uname,$id); 2457: if ($caller eq 'id') { 2458: $id = $key; 2459: } else { 2460: $uname = $key; 2461: } 2462: my ($resp,%info) = &get_instuser($udom,$uname,$id); 2463: $outcome = $resp; 2464: if ($resp eq 'ok') { 2465: %{$results} = (%{$results}, %info); 2466: } else { 2467: last; 2468: } 2469: } 2470: } elsif(!&error($response) && ($response ne 'refused')) { 2471: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) { 2472: $outcome = $response; 2473: } else { 2474: ($outcome,my $userdata) = split(/=/,$response,2); 2475: if ($outcome eq 'ok') { 2476: $results = &thaw_unescape($userdata); 2477: } 2478: } 2479: } 2480: } 2481: } 2482: return ($outcome,$results); 2483: } 2484: 2485: sub inst_rulecheck { 2486: my ($udom,$uname,$id,$item,$rules) = @_; 2487: my %returnhash; 2488: if ($udom ne '') { 2489: if (ref($rules) eq 'ARRAY') { 2490: @{$rules} = map {&escape($_);} (@{$rules}); 2491: my $rulestr = join(':',@{$rules}); 2492: my $homeserver=&domain($udom,'primary'); 2493: if (($homeserver ne '') && ($homeserver ne 'no_host')) { 2494: my $response; 2495: if ($item eq 'username') { 2496: $response=&unescape(&reply('instrulecheck:'.&escape($udom). 2497: ':'.&escape($uname).':'.$rulestr, 2498: $homeserver)); 2499: } elsif ($item eq 'id') { 2500: $response=&unescape(&reply('instidrulecheck:'.&escape($udom). 2501: ':'.&escape($id).':'.$rulestr, 2502: $homeserver)); 2503: } elsif ($item eq 'selfcreate') { 2504: $response=&unescape(&reply('instselfcreatecheck:'. 2505: &escape($udom).':'.&escape($uname). 2506: ':'.$rulestr,$homeserver)); 2507: } 2508: if ($response ne 'refused') { 2509: my @pairs=split(/\&/,$response); 2510: foreach my $item (@pairs) { 2511: my ($key,$value)=split(/=/,$item,2); 2512: $key = &unescape($key); 2513: next if ($key =~ /^error: 2 /); 2514: $returnhash{$key}=&thaw_unescape($value); 2515: } 2516: } 2517: } 2518: } 2519: } 2520: return %returnhash; 2521: } 2522: 2523: sub inst_userrules { 2524: my ($udom,$check) = @_; 2525: my (%ruleshash,@ruleorder); 2526: if ($udom ne '') { 2527: my $homeserver=&domain($udom,'primary'); 2528: if (($homeserver ne '') && ($homeserver ne 'no_host')) { 2529: my $response; 2530: if ($check eq 'id') { 2531: $response=&reply('instidrules:'.&escape($udom), 2532: $homeserver); 2533: } elsif ($check eq 'email') { 2534: $response=&reply('instemailrules:'.&escape($udom), 2535: $homeserver); 2536: } else { 2537: $response=&reply('instuserrules:'.&escape($udom), 2538: $homeserver); 2539: } 2540: if (($response ne 'refused') && ($response ne 'error') && 2541: ($response ne 'unknown_cmd') && 2542: ($response ne 'no_such_host')) { 2543: my ($hashitems,$orderitems) = split(/:/,$response); 2544: my @pairs=split(/\&/,$hashitems); 2545: foreach my $item (@pairs) { 2546: my ($key,$value)=split(/=/,$item,2); 2547: $key = &unescape($key); 2548: next if ($key =~ /^error: 2 /); 2549: $ruleshash{$key}=&thaw_unescape($value); 2550: } 2551: my @esc_order = split(/\&/,$orderitems); 2552: foreach my $item (@esc_order) { 2553: push(@ruleorder,&unescape($item)); 2554: } 2555: } 2556: } 2557: } 2558: return (\%ruleshash,\@ruleorder); 2559: } 2560: 2561: # ------------- Get Authentication, Language and User Tools Defaults for Domain 2562: 2563: sub get_domain_defaults { 2564: my ($domain,$ignore_cache) = @_; 2565: return if (($domain eq '') || ($domain eq 'public')); 2566: my $cachetime = 60*60*24; 2567: unless ($ignore_cache) { 2568: my ($result,$cached)=&is_cached_new('domdefaults',$domain); 2569: if (defined($cached)) { 2570: if (ref($result) eq 'HASH') { 2571: return %{$result}; 2572: } 2573: } 2574: } 2575: my %domdefaults; 2576: my %domconfig = 2577: &Apache::lonnet::get_dom('configuration',['defaults','quotas', 2578: 'requestcourses','inststatus', 2579: 'coursedefaults','usersessions', 2580: 'requestauthor','selfenrollment', 2581: 'coursecategories','ssl','autoenroll', 2582: 'trust','helpsettings'],$domain); 2583: my @coursetypes = ('official','unofficial','community','textbook','placement'); 2584: if (ref($domconfig{'defaults'}) eq 'HASH') { 2585: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'}; 2586: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'}; 2587: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'}; 2588: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'}; 2589: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'}; 2590: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'}; 2591: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'}; 2592: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'}; 2593: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'}; 2594: } else { 2595: $domdefaults{'lang_def'} = &domain($domain,'lang_def'); 2596: $domdefaults{'auth_def'} = &domain($domain,'auth_def'); 2597: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def'); 2598: } 2599: if (ref($domconfig{'quotas'}) eq 'HASH') { 2600: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') { 2601: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'}; 2602: } else { 2603: $domdefaults{'defaultquota'} = $domconfig{'quotas'}; 2604: } 2605: my @usertools = ('aboutme','blog','webdav','portfolio'); 2606: foreach my $item (@usertools) { 2607: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') { 2608: $domdefaults{$item} = $domconfig{'quotas'}{$item}; 2609: } 2610: } 2611: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') { 2612: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'}; 2613: } 2614: } 2615: if (ref($domconfig{'requestcourses'}) eq 'HASH') { 2616: foreach my $item ('official','unofficial','community','textbook','placement') { 2617: $domdefaults{$item} = $domconfig{'requestcourses'}{$item}; 2618: } 2619: } 2620: if (ref($domconfig{'requestauthor'}) eq 'HASH') { 2621: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'}; 2622: } 2623: if (ref($domconfig{'inststatus'}) eq 'HASH') { 2624: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') { 2625: $domdefaults{$item} = $domconfig{'inststatus'}{$item}; 2626: } 2627: } 2628: if (ref($domconfig{'coursedefaults'}) eq 'HASH') { 2629: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'}; 2630: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'}; 2631: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'}; 2632: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') { 2633: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'}; 2634: } 2635: foreach my $type (@coursetypes) { 2636: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') { 2637: unless ($type eq 'community') { 2638: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type}; 2639: } 2640: } 2641: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') { 2642: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type}; 2643: } 2644: if ($domdefaults{'postsubmit'} eq 'on') { 2645: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') { 2646: $domdefaults{$type.'postsubtimeout'} = 2647: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type}; 2648: } 2649: } 2650: } 2651: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') { 2652: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') { 2653: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}}; 2654: if (@clonecodes) { 2655: $domdefaults{'canclone'} = join('+',@clonecodes); 2656: } 2657: } 2658: } elsif ($domconfig{'coursedefaults'}{'canclone'}) { 2659: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'}; 2660: } 2661: if ($domconfig{'coursedefaults'}{'texengine'}) { 2662: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'}; 2663: } 2664: } 2665: if (ref($domconfig{'usersessions'}) eq 'HASH') { 2666: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') { 2667: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'}; 2668: } 2669: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') { 2670: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'}; 2671: } 2672: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') { 2673: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'}; 2674: } 2675: } 2676: if (ref($domconfig{'selfenrollment'}) eq 'HASH') { 2677: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') { 2678: my @settings = ('types','registered','enroll_dates','access_dates','section', 2679: 'approval','limit'); 2680: foreach my $type (@coursetypes) { 2681: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') { 2682: my @mgrdc = (); 2683: foreach my $item (@settings) { 2684: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') { 2685: push(@mgrdc,$item); 2686: } 2687: } 2688: if (@mgrdc) { 2689: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc); 2690: } 2691: } 2692: } 2693: } 2694: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') { 2695: foreach my $type (@coursetypes) { 2696: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') { 2697: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) { 2698: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item}; 2699: } 2700: } 2701: } 2702: } 2703: } 2704: if (ref($domconfig{'coursecategories'}) eq 'HASH') { 2705: $domdefaults{'catauth'} = 'std'; 2706: $domdefaults{'catunauth'} = 'std'; 2707: if ($domconfig{'coursecategories'}{'auth'}) { 2708: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'}; 2709: } 2710: if ($domconfig{'coursecategories'}{'unauth'}) { 2711: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'}; 2712: } 2713: } 2714: if (ref($domconfig{'ssl'}) eq 'HASH') { 2715: if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') { 2716: $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'}; 2717: } 2718: if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') { 2719: $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'}; 2720: } 2721: if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') { 2722: $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'}; 2723: } 2724: } 2725: if (ref($domconfig{'trust'}) eq 'HASH') { 2726: my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg); 2727: foreach my $prefix (@prefixes) { 2728: if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') { 2729: $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix}; 2730: } 2731: } 2732: } 2733: if (ref($domconfig{'autoenroll'}) eq 'HASH') { 2734: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'}; 2735: } 2736: if (ref($domconfig{'helpsettings'}) eq 'HASH') { 2737: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'}; 2738: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') { 2739: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'}; 2740: } 2741: } 2742: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime); 2743: return %domdefaults; 2744: } 2745: 2746: sub get_dom_cats { 2747: my ($dom) = @_; 2748: return unless (&domain($dom)); 2749: my ($cats,$cached)=&is_cached_new('cats',$dom); 2750: unless (defined($cached)) { 2751: my %domconfig = &get_dom('configuration',['coursecategories'],$dom); 2752: if (ref($domconfig{'coursecategories'}) eq 'HASH') { 2753: if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') { 2754: %{$cats} = %{$domconfig{'coursecategories'}{'cats'}}; 2755: } else { 2756: $cats = {}; 2757: } 2758: } else { 2759: $cats = {}; 2760: } 2761: &Apache::lonnet::do_cache_new('cats',$dom,$cats,3600); 2762: } 2763: return $cats; 2764: } 2765: 2766: sub get_dom_instcats { 2767: my ($dom) = @_; 2768: return unless (&domain($dom)); 2769: my ($instcats,$cached)=&is_cached_new('instcats',$dom); 2770: unless (defined($cached)) { 2771: my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order); 2772: my $totcodes = &retrieve_instcodes(\%coursecodes,$dom); 2773: if ($totcodes > 0) { 2774: my $caller = 'global'; 2775: if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes, 2776: \@codetitles,\%cat_titles,\%cat_order) eq 'ok') { 2777: $instcats = { 2778: codes => \%codes, 2779: codetitles => \@codetitles, 2780: cat_titles => \%cat_titles, 2781: cat_order => \%cat_order, 2782: }; 2783: &do_cache_new('instcats',$dom,$instcats,3600); 2784: } 2785: } 2786: } 2787: return $instcats; 2788: } 2789: 2790: sub retrieve_instcodes { 2791: my ($coursecodes,$dom) = @_; 2792: my $totcodes; 2793: my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course'); 2794: foreach my $course (keys(%courses)) { 2795: if (ref($courses{$course}) eq 'HASH') { 2796: if ($courses{$course}{'inst_code'} ne '') { 2797: $$coursecodes{$course} = $courses{$course}{'inst_code'}; 2798: $totcodes ++; 2799: } 2800: } 2801: } 2802: return $totcodes; 2803: } 2804: 2805: sub course_portal_url { 2806: my ($cnum,$cdom) = @_; 2807: my $chome = &homeserver($cnum,$cdom); 2808: my $hostname = &hostname($chome); 2809: my $protocol = $protocol{$chome}; 2810: $protocol = 'http' if ($protocol ne 'https'); 2811: my %domdefaults = &get_domain_defaults($cdom); 2812: my $firsturl; 2813: if ($domdefaults{'portal_def'}) { 2814: $firsturl = $domdefaults{'portal_def'}; 2815: } else { 2816: $firsturl = $protocol.'://'.$hostname; 2817: } 2818: return $firsturl; 2819: } 2820: 2821: # --------------------------------------------- Get domain config for passwords 2822: 2823: sub get_passwdconf { 2824: my ($dom) = @_; 2825: my (%passwdconf,$gotconf,$lookup); 2826: my ($result,$cached)=&is_cached_new('passwdconf',$dom); 2827: if (defined($cached)) { 2828: if (ref($result) eq 'HASH') { 2829: %passwdconf = %{$result}; 2830: $gotconf = 1; 2831: } 2832: } 2833: unless ($gotconf) { 2834: my %domconfig = &get_dom('configuration',['passwords'],$dom); 2835: if (ref($domconfig{'passwords'}) eq 'HASH') { 2836: %passwdconf = %{$domconfig{'passwords'}}; 2837: } 2838: my $cachetime = 24*60*60; 2839: &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime); 2840: } 2841: return %passwdconf; 2842: } 2843: 2844: # --------------------------------------------------- Assign a key to a student 2845: 2846: sub assign_access_key { 2847: # 2848: # a valid key looks like uname:udom#comments 2849: # comments are being appended 2850: # 2851: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_; 2852: $kdom= 2853: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom)); 2854: $knum= 2855: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum)); 2856: $cdom= 2857: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 2858: $cnum= 2859: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 2860: $udom=$env{'user.name'} unless (defined($udom)); 2861: $uname=$env{'user.domain'} unless (defined($uname)); 2862: my %existing=&get('accesskeys',[$ckey],$kdom,$knum); 2863: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key 2864: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) { 2865: # assigned to this person 2866: # - this should not happen, 2867: # unless something went wrong 2868: # the first time around 2869: # ready to assign 2870: $logentry=$1.'; '.$logentry; 2871: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry}, 2872: $kdom,$knum) eq 'ok') { 2873: # key now belongs to user 2874: my $envkey='key.'.$cdom.'_'.$cnum; 2875: if (&put('environment',{$envkey => $ckey}) eq 'ok') { 2876: &appenv({'environment.'.$envkey => $ckey}); 2877: return 'ok'; 2878: } else { 2879: return 2880: 'error: Count not permanently assign key, will need to be re-entered later.'; 2881: } 2882: } else { 2883: return 'error: Could not assign key, try again later.'; 2884: } 2885: } elsif (!$existing{$ckey}) { 2886: # the key does not exist 2887: return 'error: The key does not exist'; 2888: } else { 2889: # the key is somebody else's 2890: return 'error: The key is already in use'; 2891: } 2892: } 2893: 2894: # ------------------------------------------ put an additional comment on a key 2895: 2896: sub comment_access_key { 2897: # 2898: # a valid key looks like uname:udom#comments 2899: # comments are being appended 2900: # 2901: my ($ckey,$cdom,$cnum,$logentry)=@_; 2902: $cdom= 2903: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 2904: $cnum= 2905: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 2906: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); 2907: if ($existing{$ckey}) { 2908: $existing{$ckey}.='; '.$logentry; 2909: # ready to assign 2910: if (&put('accesskeys',{$ckey=>$existing{$ckey}}, 2911: $cdom,$cnum) eq 'ok') { 2912: return 'ok'; 2913: } else { 2914: return 'error: Count not store comment.'; 2915: } 2916: } else { 2917: # the key does not exist 2918: return 'error: The key does not exist'; 2919: } 2920: } 2921: 2922: # ------------------------------------------------------ Generate a set of keys 2923: 2924: sub generate_access_keys { 2925: my ($number,$cdom,$cnum,$logentry)=@_; 2926: $cdom= 2927: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 2928: $cnum= 2929: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 2930: unless (&allowed('mky',$cdom)) { return 0; } 2931: unless (($cdom) && ($cnum)) { return 0; } 2932: if ($number>10000) { return 0; } 2933: sleep(2); # make sure don't get same seed twice 2934: srand(time()^($$+($$<<15))); # from "Programming Perl" 2935: my $total=0; 2936: for (my $i=1;$i<=$number;$i++) { 2937: my $newkey=sprintf("%lx",int(100000*rand)).'-'. 2938: sprintf("%lx",int(100000*rand)).'-'. 2939: sprintf("%lx",int(100000*rand)); 2940: $newkey=~s/1/g/g; # folks mix up 1 and l 2941: $newkey=~s/0/h/g; # and also 0 and O 2942: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum); 2943: if ($existing{$newkey}) { 2944: $i--; 2945: } else { 2946: if (&put('accesskeys', 2947: { $newkey => '# generated '.localtime(). 2948: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}. 2949: '; '.$logentry }, 2950: $cdom,$cnum) eq 'ok') { 2951: $total++; 2952: } 2953: } 2954: } 2955: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 2956: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom); 2957: return $total; 2958: } 2959: 2960: # ------------------------------------------------------- Validate an accesskey 2961: 2962: sub validate_access_key { 2963: my ($ckey,$cdom,$cnum,$udom,$uname)=@_; 2964: $cdom= 2965: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); 2966: $cnum= 2967: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); 2968: $udom=$env{'user.domain'} unless (defined($udom)); 2969: $uname=$env{'user.name'} unless (defined($uname)); 2970: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); 2971: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/); 2972: } 2973: 2974: # ------------------------------------- Find the section of student in a course 2975: sub devalidate_getsection_cache { 2976: my ($udom,$unam,$courseid)=@_; 2977: my $hashid="$udom:$unam:$courseid"; 2978: &devalidate_cache_new('getsection',$hashid); 2979: } 2980: 2981: sub courseid_to_courseurl { 2982: my ($courseid) = @_; 2983: #already url style courseid 2984: return $courseid if ($courseid =~ m{^/}); 2985: 2986: if (exists($env{'course.'.$courseid.'.num'})) { 2987: my $cnum = $env{'course.'.$courseid.'.num'}; 2988: my $cdom = $env{'course.'.$courseid.'.domain'}; 2989: return "/$cdom/$cnum"; 2990: } 2991: 2992: my %courseinfo=&Apache::lonnet::coursedescription($courseid); 2993: if (exists($courseinfo{'num'})) { 2994: return "/$courseinfo{'domain'}/$courseinfo{'num'}"; 2995: } 2996: 2997: return undef; 2998: } 2999: 3000: sub getsection { 3001: my ($udom,$unam,$courseid)=@_; 3002: my $cachetime=1800; 3003: 3004: my $hashid="$udom:$unam:$courseid"; 3005: my ($result,$cached)=&is_cached_new('getsection',$hashid); 3006: if (defined($cached)) { return $result; } 3007: 3008: my %Pending; 3009: my %Expired; 3010: # 3011: # Each role can either have not started yet (pending), be active, 3012: # or have expired. 3013: # 3014: # If there is an active role, we are done. 3015: # 3016: # If there is more than one role which has not started yet, 3017: # choose the one which will start sooner 3018: # If there is one role which has not started yet, return it. 3019: # 3020: # If there is more than one expired role, choose the one which ended last. 3021: # If there is a role which has expired, return it. 3022: # 3023: $courseid = &courseid_to_courseurl($courseid); 3024: my %roleshash = &dump('roles',$udom,$unam,$courseid); 3025: foreach my $key (keys(%roleshash)) { 3026: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/); 3027: my $section=$1; 3028: if ($key eq $courseid.'_st') { $section=''; } 3029: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key})); 3030: my $now=time; 3031: if (defined($end) && $end && ($now > $end)) { 3032: $Expired{$end}=$section; 3033: next; 3034: } 3035: if (defined($start) && $start && ($now < $start)) { 3036: $Pending{$start}=$section; 3037: next; 3038: } 3039: return &do_cache_new('getsection',$hashid,$section,$cachetime); 3040: } 3041: # 3042: # Presumedly there will be few matching roles from the above 3043: # loop and the sorting time will be negligible. 3044: if (scalar(keys(%Pending))) { 3045: my ($time) = sort {$a <=> $b} keys(%Pending); 3046: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime); 3047: } 3048: if (scalar(keys(%Expired))) { 3049: my @sorted = sort {$a <=> $b} keys(%Expired); 3050: my $time = pop(@sorted); 3051: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime); 3052: } 3053: return &do_cache_new('getsection',$hashid,'-1',$cachetime); 3054: } 3055: 3056: sub save_cache { 3057: &purge_remembered(); 3058: #&Apache::loncommon::validate_page(); 3059: undef(%env); 3060: undef($env_loaded); 3061: } 3062: 3063: my $to_remember=-1; 3064: my %remembered; 3065: my %accessed; 3066: my $kicks=0; 3067: my $hits=0; 3068: sub make_key { 3069: my ($name,$id) = @_; 3070: if (length($id) > 65 3071: && length(&escape($id)) > 200) { 3072: $id=length($id).':'.&Digest::MD5::md5_hex($id); 3073: } 3074: return &escape($name.':'.$id); 3075: } 3076: 3077: sub devalidate_cache_new { 3078: my ($name,$id,$debug) = @_; 3079: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); } 3080: my $remembered_id=$name.':'.$id; 3081: $id=&make_key($name,$id); 3082: $memcache->delete($id); 3083: delete($remembered{$remembered_id}); 3084: delete($accessed{$remembered_id}); 3085: } 3086: 3087: sub is_cached_new { 3088: my ($name,$id,$debug) = @_; 3089: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible 3090: if (exists($remembered{$remembered_id})) { 3091: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); } 3092: $accessed{$remembered_id}=[&gettimeofday()]; 3093: $hits++; 3094: return ($remembered{$remembered_id},1); 3095: } 3096: $id=&make_key($name,$id); 3097: my $value = $memcache->get($id); 3098: if (!(defined($value))) { 3099: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); } 3100: return (undef,undef); 3101: } 3102: if ($value eq '__undef__') { 3103: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); } 3104: $value=undef; 3105: } 3106: &make_room($remembered_id,$value,$debug); 3107: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); } 3108: return ($value,1); 3109: } 3110: 3111: sub do_cache_new { 3112: my ($name,$id,$value,$time,$debug) = @_; 3113: my $remembered_id=$name.':'.$id; 3114: $id=&make_key($name,$id); 3115: my $setvalue=$value; 3116: if (!defined($setvalue)) { 3117: $setvalue='__undef__'; 3118: } 3119: if (!defined($time) ) { 3120: $time=600; 3121: } 3122: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); } 3123: my $result = $memcache->set($id,$setvalue,$time); 3124: if (! $result) { 3125: &logthis("caching of id -> $id failed"); 3126: $memcache->disconnect_all(); 3127: } 3128: # need to make a copy of $value 3129: &make_room($remembered_id,$value,$debug); 3130: return $value; 3131: } 3132: 3133: sub make_room { 3134: my ($remembered_id,$value,$debug)=@_; 3135: 3136: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value) 3137: : $value; 3138: if ($to_remember<0) { return; } 3139: $accessed{$remembered_id}=[&gettimeofday()]; 3140: if (scalar(keys(%remembered)) <= $to_remember) { return; } 3141: my $to_kick; 3142: my $max_time=0; 3143: foreach my $other (keys(%accessed)) { 3144: if (&tv_interval($accessed{$other}) > $max_time) { 3145: $to_kick=$other; 3146: $max_time=&tv_interval($accessed{$other}); 3147: } 3148: } 3149: delete($remembered{$to_kick}); 3150: delete($accessed{$to_kick}); 3151: $kicks++; 3152: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); } 3153: return; 3154: } 3155: 3156: sub purge_remembered { 3157: #&logthis("Tossing ".scalar(keys(%remembered))); 3158: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered)))); 3159: undef(%remembered); 3160: undef(%accessed); 3161: } 3162: # ------------------------------------- Read an entry from a user's environment 3163: 3164: sub userenvironment { 3165: my ($udom,$unam,@what)=@_; 3166: my $items; 3167: foreach my $item (@what) { 3168: $items.=&escape($item).'&'; 3169: } 3170: $items=~s/\&$//; 3171: my %returnhash=(); 3172: my $uhome = &homeserver($unam,$udom); 3173: unless ($uhome eq 'no_host') { 3174: my @answer=split(/\&/, 3175: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome)); 3176: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) { 3177: return %returnhash; 3178: } 3179: my $i; 3180: for ($i=0;$i<=$#what;$i++) { 3181: $returnhash{$what[$i]}=&unescape($answer[$i]); 3182: } 3183: } 3184: return %returnhash; 3185: } 3186: 3187: # ---------------------------------------------------------- Get a studentphoto 3188: sub studentphoto { 3189: my ($udom,$unam,$ext) = @_; 3190: my $home=&Apache::lonnet::homeserver($unam,$udom); 3191: if (defined($env{'request.course.id'})) { 3192: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) { 3193: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) { 3194: return(&retrievestudentphoto($udom,$unam,$ext)); 3195: } else { 3196: my ($result,$perm_reqd)= 3197: &Apache::lonnet::auto_photo_permission($unam,$udom); 3198: if ($result eq 'ok') { 3199: if (!($perm_reqd eq 'yes')) { 3200: return(&retrievestudentphoto($udom,$unam,$ext)); 3201: } 3202: } 3203: } 3204: } 3205: } else { 3206: my ($result,$perm_reqd) = 3207: &Apache::lonnet::auto_photo_permission($unam,$udom); 3208: if ($result eq 'ok') { 3209: if (!($perm_reqd eq 'yes')) { 3210: return(&retrievestudentphoto($udom,$unam,$ext)); 3211: } 3212: } 3213: } 3214: return '/adm/lonKaputt/lonlogo_broken.gif'; 3215: } 3216: 3217: sub retrievestudentphoto { 3218: my ($udom,$unam,$ext,$type) = @_; 3219: my $home=&Apache::lonnet::homeserver($unam,$udom); 3220: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home); 3221: if ($ret eq 'ok') { 3222: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext"; 3223: if ($type eq 'thumbnail') { 3224: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext"; 3225: } 3226: my $tokenurl=&Apache::lonnet::tokenwrapper($url); 3227: return $tokenurl; 3228: } else { 3229: if ($type eq 'thumbnail') { 3230: return '/adm/lonKaputt/genericstudent_tn.gif'; 3231: } else { 3232: return '/adm/lonKaputt/lonlogo_broken.gif'; 3233: } 3234: } 3235: } 3236: 3237: # -------------------------------------------------------------------- New chat 3238: 3239: sub chatsend { 3240: my ($newentry,$anon,$group)=@_; 3241: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'}; 3242: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 3243: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'}; 3244: &reply('chatsend:'.$cdom.':'.$cnum.':'. 3245: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'. 3246: &escape($newentry)).':'.$group,$chome); 3247: } 3248: 3249: # ------------------------------------------ Find current version of a resource 3250: 3251: sub getversion { 3252: my $fname=&clutter(shift); 3253: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; } 3254: return &currentversion(&filelocation('',$fname)); 3255: } 3256: 3257: sub currentversion { 3258: my $fname=shift; 3259: my $author=$fname; 3260: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3261: my ($udom,$uname)=split(/\//,$author); 3262: my $home=&homeserver($uname,$udom); 3263: if ($home eq 'no_host') { 3264: return -1; 3265: } 3266: my $answer=&reply("currentversion:$fname",$home); 3267: if (($answer eq 'con_lost') || ($answer eq 'rejected')) { 3268: return -1; 3269: } 3270: return $answer; 3271: } 3272: 3273: # 3274: # Return special version number of resource if set by override, empty otherwise 3275: # 3276: sub usedversion { 3277: my $fname=shift; 3278: unless ($fname) { $fname=$env{'request.uri'}; } 3279: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/); 3280: if ($urlversion) { return $urlversion; } 3281: return ''; 3282: } 3283: 3284: # ----------------------------- Subscribe to a resource, return URL if possible 3285: 3286: sub subscribe { 3287: my $fname=shift; 3288: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; } 3289: $fname=~s/[\n\r]//g; 3290: my $author=$fname; 3291: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3292: my ($udom,$uname)=split(/\//,$author); 3293: my $home=homeserver($uname,$udom); 3294: if ($home eq 'no_host') { 3295: return 'not_found'; 3296: } 3297: my $answer=reply("sub:$fname",$home); 3298: if (($answer eq 'con_lost') || ($answer eq 'rejected')) { 3299: $answer.=' by '.$home; 3300: } 3301: return $answer; 3302: } 3303: 3304: # -------------------------------------------------------------- Replicate file 3305: 3306: sub repcopy { 3307: my $filename=shift; 3308: $filename=~s/\/+/\//g; 3309: my $londocroot = $perlvar{'lonDocRoot'}; 3310: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; } 3311: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } 3312: if ($filename=~m{^\Q$londocroot/userfiles/\E} or 3313: $filename=~m{^/*(uploaded|editupload)/}) { 3314: return &repcopy_userfile($filename); 3315: } 3316: $filename=~s/[\n\r]//g; 3317: my $transname="$filename.in.transfer"; 3318: # FIXME: this should flock 3319: if ((-e $filename) || (-e $transname)) { return 'ok'; } 3320: my $remoteurl=subscribe($filename); 3321: if ($remoteurl =~ /^con_lost by/) { 3322: &logthis("Subscribe returned $remoteurl: $filename"); 3323: return 'unavailable'; 3324: } elsif ($remoteurl eq 'not_found') { 3325: #&logthis("Subscribe returned not_found: $filename"); 3326: return 'not_found'; 3327: } elsif ($remoteurl =~ /^rejected by/) { 3328: &logthis("Subscribe returned $remoteurl: $filename"); 3329: return 'forbidden'; 3330: } elsif ($remoteurl eq 'directory') { 3331: return 'ok'; 3332: } else { 3333: my $author=$filename; 3334: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3335: my ($udom,$uname)=split(/\//,$author); 3336: my $home=homeserver($uname,$udom); 3337: unless ($home eq $perlvar{'lonHostID'}) { 3338: my @parts=split(/\//,$filename); 3339: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]"; 3340: if ($path ne "$londocroot/res") { 3341: &logthis("Malconfiguration for replication: $filename"); 3342: return 'bad_request'; 3343: } 3344: my $count; 3345: for ($count=5;$count<$#parts;$count++) { 3346: $path.="/$parts[$count]"; 3347: if ((-e $path)!=1) { 3348: mkdir($path,0777); 3349: } 3350: } 3351: my $request=new HTTP::Request('GET',"$remoteurl"); 3352: my $response; 3353: if ($remoteurl =~ m{/raw/}) { 3354: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1); 3355: } else { 3356: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1); 3357: } 3358: if ($response->is_error()) { 3359: unlink($transname); 3360: my $message=$response->status_line; 3361: &logthis("WARNING:" 3362: ." LWP get: $message: $filename"); 3363: return 'unavailable'; 3364: } else { 3365: if ($remoteurl!~/\.meta$/) { 3366: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); 3367: my $mresponse; 3368: if ($remoteurl =~ m{/raw/}) { 3369: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1); 3370: } else { 3371: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1); 3372: } 3373: if ($mresponse->is_error()) { 3374: unlink($filename.'.meta'); 3375: &logthis( 3376: "INFO: No metadata: $filename"); 3377: } 3378: } 3379: rename($transname,$filename); 3380: return 'ok'; 3381: } 3382: } 3383: } 3384: } 3385: 3386: # ------------------------------------------------- Unsubscribe from a resource 3387: 3388: sub unsubscribe { 3389: my ($fname) = @_; 3390: my $answer; 3391: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return $answer; } 3392: $fname=~s/[\n\r]//g; 3393: my $author=$fname; 3394: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; 3395: my ($udom,$uname)=split(/\//,$author); 3396: my $home=homeserver($uname,$udom); 3397: if ($home eq 'no_host') { 3398: $answer = 'no_host'; 3399: } elsif (grep { $_ eq $home } &current_machine_ids()) { 3400: $answer = 'home'; 3401: } else { 3402: my $defdom = $perlvar{'lonDefDomain'}; 3403: if (&will_trust('content',$defdom,$udom)) { 3404: $answer = reply("unsub:$fname",$home); 3405: } else { 3406: $answer = 'untrusted'; 3407: } 3408: } 3409: return $answer; 3410: } 3411: 3412: # ------------------------------------------------ Get server side include body 3413: sub ssi_body { 3414: my ($filelink,%form)=@_; 3415: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) { 3416: $form{'LONCAPA_INTERNAL_no_discussion'}='true'; 3417: } 3418: my $output=''; 3419: my $response; 3420: if ($filelink=~/^https?\:/) { 3421: ($output,$response)=&externalssi($filelink); 3422: } else { 3423: $filelink .= $filelink=~/\?/ ? '&' : '?'; 3424: $filelink .= 'inhibitmenu=yes'; 3425: ($output,$response)=&ssi($filelink,%form); 3426: } 3427: $output=~s|//(\s*)?\s||gs; 3428: $output=~s/^.*?\<body[^\>]*\>//si; 3429: $output=~s/\<\/body\s*\>.*?$//si; 3430: if (wantarray) { 3431: return ($output, $response); 3432: } else { 3433: return $output; 3434: } 3435: } 3436: 3437: # --------------------------------------------------------- Server Side Include 3438: 3439: sub absolute_url { 3440: my ($host_name) = @_; 3441: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://'); 3442: if ($host_name eq '') { 3443: $host_name = $ENV{'SERVER_NAME'}; 3444: } 3445: return $protocol.$host_name; 3446: } 3447: 3448: # 3449: # Server side include. 3450: # Parameters: 3451: # fn Possibly encrypted resource name/id. 3452: # form Hash that describes how the rendering should be done 3453: # and other things. 3454: # Returns: 3455: # Scalar context: The content of the response. 3456: # Array context: 2 element list of the content and the full response object. 3457: # 3458: sub ssi { 3459: 3460: my ($fn,%form)=@_; 3461: my $request; 3462: 3463: $form{'no_update_last_known'}=1; 3464: &Apache::lonenc::check_encrypt(\$fn); 3465: if (%form) { 3466: $request=new HTTP::Request('POST',&absolute_url().$fn); 3467: $request->content(join('&',map { 3468: my $name = escape($_); 3469: "$name=" . ( ref($form{$_}) eq 'ARRAY' 3470: ? join("&$name=", map {escape($_) } @{$form{$_}}) 3471: : &escape($form{$_}) ); 3472: } keys(%form))); 3473: } else { 3474: $request=new HTTP::Request('GET',&absolute_url().$fn); 3475: } 3476: 3477: $request->header(Cookie => $ENV{'HTTP_COOKIE'}); 3478: my $lonhost = $perlvar{'lonHostID'}; 3479: my $islocal; 3480: if (($env{'request.course.id'}) && 3481: ($form{'grade_courseid'} eq $env{'request.course.id'}) && 3482: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') && 3483: ($form{'grade_symb'} ne '') && 3484: (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}. 3485: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) { 3486: $islocal = 1; 3487: } 3488: my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar, 3489: '','','',$islocal); 3490: 3491: if (wantarray) { 3492: return ($response->content, $response); 3493: } else { 3494: return $response->content; 3495: } 3496: } 3497: 3498: sub externalssi { 3499: my ($url)=@_; 3500: my $request=new HTTP::Request('GET',$url); 3501: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar); 3502: if (wantarray) { 3503: return ($response->content, $response); 3504: } else { 3505: return $response->content; 3506: } 3507: } 3508: 3509: 3510: # If the local copy of a replicated resource is outdated, trigger a 3511: # connection from the homeserver to flush the delayed queue. If no update 3512: # happens, remove local copies of outdated resource (and corresponding 3513: # metadata file). 3514: 3515: sub remove_stale_resfile { 3516: my ($url) = @_; 3517: my $removed; 3518: if ($url=~m{^/res/($match_domain)/($match_username)/}) { 3519: my $audom = $1; 3520: my $auname = $2; 3521: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) { 3522: my $homeserver = &homeserver($auname,$audom); 3523: unless (($homeserver eq 'no_host') || 3524: (grep { $_ eq $homeserver } &current_machine_ids())) { 3525: my $fname = &filelocation('',$url); 3526: if (-e $fname) { 3527: my $hostname = &hostname($homeserver); 3528: if ($hostname) { 3529: my $protocol = $protocol{$homeserver}; 3530: $protocol = 'http' if ($protocol ne 'https'); 3531: my $uri = &declutter($url); 3532: my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri); 3533: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1); 3534: if ($response->is_success()) { 3535: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') ); 3536: my $locmodtime = (stat($fname))[9]; 3537: if ($locmodtime < $remmodtime) { 3538: my $stale; 3539: my $answer = &reply('pong',$homeserver); 3540: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) { 3541: sleep(0.2); 3542: $locmodtime = (stat($fname))[9]; 3543: if ($locmodtime < $remmodtime) { 3544: my $posstransfer = $fname.'.in.transfer'; 3545: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) { 3546: $removed = 1; 3547: } else { 3548: $stale = 1; 3549: } 3550: } else { 3551: $removed = 1; 3552: } 3553: } else { 3554: $stale = 1; 3555: } 3556: if ($stale) { 3557: if (unlink($fname)) { 3558: if ($uri!~/\.meta$/) { 3559: if (-e $fname.'.meta') { 3560: unlink($fname.'.meta'); 3561: } 3562: } 3563: my $unsubresult = &unsubscribe($fname); 3564: unless ($unsubresult eq 'ok') { 3565: &logthis("no unsub of $fname from $homeserver, reason: $unsubresult"); 3566: } 3567: $removed = 1; 3568: } 3569: } 3570: } 3571: } 3572: } 3573: } 3574: } 3575: } 3576: } 3577: return $removed; 3578: } 3579: 3580: # -------------------------------- Allow a /uploaded/ URI to be vouched for 3581: 3582: sub allowuploaded { 3583: my ($srcurl,$url)=@_; 3584: $url=&clutter(&declutter($url)); 3585: my $dir=$url; 3586: $dir=~s/\/[^\/]+$//; 3587: my %httpref=(); 3588: my $httpurl=&hreflocation('',$url); 3589: $httpref{'httpref.'.$httpurl}=$srcurl; 3590: &Apache::lonnet::appenv(\%httpref); 3591: } 3592: 3593: # 3594: # Determine if the current user should be able to edit a particular resource, 3595: # when viewing in course context. 3596: # (a) When viewing resource used to determine if "Edit" item is included in 3597: # Functions. 3598: # (b) When displaying folder contents in course editor, used to determine if 3599: # "Edit" link will be displayed alongside resource. 3600: # 3601: # input: six args -- filename (decluttered), course number, course domain, 3602: # url, symb (if registered) and group (if this is a group 3603: # item -- e.g., bulletin board, group page etc.). 3604: # output: array of five scalars -- 3605: # $cfile -- url for file editing if editable on current server 3606: # $home -- homeserver of resource (i.e., for author if published, 3607: # or course if uploaded.). 3608: # $switchserver -- 1 if server switch will be needed. 3609: # $forceedit -- 1 if icon/link should be to go to edit mode 3610: # $forceview -- 1 if icon/link should be to go to view mode 3611: # 3612: 3613: sub can_edit_resource { 3614: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_; 3615: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse); 3616: # 3617: # For aboutme pages user can only edit his/her own. 3618: # 3619: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) { 3620: my ($sdom,$sname) = ($1,$2); 3621: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) { 3622: $home = $env{'user.home'}; 3623: $cfile = $resurl; 3624: if ($env{'form.forceedit'}) { 3625: $forceview = 1; 3626: } else { 3627: $forceedit = 1; 3628: } 3629: return ($cfile,$home,$switchserver,$forceedit,$forceview); 3630: } else { 3631: return; 3632: } 3633: } 3634: 3635: if ($env{'request.course.id'}) { 3636: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'}); 3637: if ($group ne '') { 3638: # if this is a group homepage or group bulletin board, check group privs 3639: my $allowed = 0; 3640: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) { 3641: if ((&allowed('mdg',$env{'request.course.id'}. 3642: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || 3643: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) { 3644: $allowed = 1; 3645: } 3646: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) { 3647: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || 3648: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) { 3649: $allowed = 1; 3650: } 3651: } 3652: if ($allowed) { 3653: $home=&homeserver($cnum,$cdom); 3654: if ($env{'form.forceedit'}) { 3655: $forceview = 1; 3656: } else { 3657: $forceedit = 1; 3658: } 3659: $cfile = $resurl; 3660: } else { 3661: return; 3662: } 3663: } else { 3664: if ($resurl =~ m{^/?adm/viewclasslist$}) { 3665: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) { 3666: return; 3667: } 3668: } elsif (!$crsedit) { 3669: # 3670: # No edit allowed where CC has switched to student role. 3671: # 3672: return; 3673: } 3674: } 3675: } 3676: 3677: if ($file ne '') { 3678: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) { 3679: if (&is_course_upload($file,$cnum,$cdom)) { 3680: $uploaded = 1; 3681: $incourse = 1; 3682: if ($file =~/\.(htm|html|css|js|txt)$/) { 3683: $cfile = &hreflocation('',$file); 3684: if ($env{'form.forceedit'}) { 3685: $forceview = 1; 3686: } else { 3687: $forceedit = 1; 3688: } 3689: } 3690: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) { 3691: $incourse = 1; 3692: if ($env{'form.forceedit'}) { 3693: $forceview = 1; 3694: } else { 3695: $forceedit = 1; 3696: } 3697: $cfile = $resurl; 3698: } elsif (($resurl ne '') && (&is_on_map($resurl))) { 3699: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) { 3700: $incourse = 1; 3701: if ($env{'form.forceedit'}) { 3702: $forceview = 1; 3703: } else { 3704: $forceedit = 1; 3705: } 3706: $cfile = $resurl; 3707: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') { 3708: $incourse = 1; 3709: $cfile = $resurl.'/smpedit'; 3710: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) { 3711: $incourse = 1; 3712: if ($env{'form.forceedit'}) { 3713: $forceview = 1; 3714: } else { 3715: $forceedit = 1; 3716: } 3717: $cfile = $resurl; 3718: } elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) { 3719: my ($map,$id,$res) = &decode_symb($symb); 3720: if ($map =~ /\.page$/) { 3721: $incourse = 1; 3722: if ($env{'form.forceedit'}) { 3723: $forceview = 1; 3724: $cfile = $map; 3725: } else { 3726: $forceedit = 1; 3727: $cfile = '/adm/wrapper'.$resurl; 3728: } 3729: } 3730: } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) { 3731: $incourse = 1; 3732: if ($env{'form.forceedit'}) { 3733: $forceview = 1; 3734: } else { 3735: $forceedit = 1; 3736: } 3737: $cfile = $resurl; 3738: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { 3739: $incourse = 1; 3740: if ($env{'form.forceedit'}) { 3741: $forceview = 1; 3742: } else { 3743: $forceedit = 1; 3744: } 3745: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); 3746: } 3747: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') { 3748: my $template = '/res/lib/templates/simpleproblem.problem'; 3749: if (&is_on_map($template)) { 3750: $incourse = 1; 3751: $forceview = 1; 3752: $cfile = $template; 3753: } 3754: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) { 3755: $incourse = 1; 3756: if ($env{'form.forceedit'}) { 3757: $forceview = 1; 3758: } else { 3759: $forceedit = 1; 3760: } 3761: $cfile = $resurl; 3762: } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) { 3763: $incourse = 1; 3764: if ($env{'form.forceedit'}) { 3765: $forceview = 1; 3766: } else { 3767: $forceedit = 1; 3768: } 3769: $cfile = $resurl; 3770: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) { 3771: $incourse = 1; 3772: $forceview = 1; 3773: if ($symb) { 3774: my ($map,$id,$res)=&decode_symb($symb); 3775: $env{'request.symb'} = $symb; 3776: $cfile = &clutter($res); 3777: } else { 3778: $cfile = $env{'form.suppurl'}; 3779: my $escfile = &unescape($cfile); 3780: if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) { 3781: $cfile = '/adm/wrapper'.$escfile; 3782: } else { 3783: $escfile =~ s{^http://}{}; 3784: $cfile = &escape("/adm/wrapper/ext/$escfile"); 3785: } 3786: } 3787: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { 3788: if ($env{'form.forceedit'}) { 3789: $forceview = 1; 3790: } else { 3791: $forceedit = 1; 3792: } 3793: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); 3794: } 3795: } 3796: if ($uploaded || $incourse) { 3797: $home=&homeserver($cnum,$cdom); 3798: } elsif ($file !~ m{/$}) { 3799: $file=~s{^(priv/$match_domain/$match_username)}{/$1}; 3800: $file=~s{^($match_domain/$match_username)}{/priv/$1}; 3801: # Check that the user has permission to edit this resource 3802: my $setpriv = 1; 3803: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv); 3804: if (defined($cfudom)) { 3805: $home=&homeserver($cfuname,$cfudom); 3806: $cfile=$file; 3807: } 3808: } 3809: if (($cfile ne '') && (!$incourse || $uploaded) && 3810: (($home ne '') && ($home ne 'no_host'))) { 3811: my @ids=&current_machine_ids(); 3812: unless (grep(/^\Q$home\E$/,@ids)) { 3813: $switchserver=1; 3814: } 3815: } 3816: } 3817: return ($cfile,$home,$switchserver,$forceedit,$forceview); 3818: } 3819: 3820: sub is_course_upload { 3821: my ($file,$cnum,$cdom) = @_; 3822: my $uploadpath = &LONCAPA::propath($cdom,$cnum); 3823: $uploadpath =~ s{^\/}{}; 3824: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) || 3825: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) { 3826: return 1; 3827: } 3828: return; 3829: } 3830: 3831: sub in_course { 3832: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_; 3833: if ($hideprivileged) { 3834: my $skipuser; 3835: my %coursehash = &coursedescription($cdom.'_'.$cnum); 3836: my @possdoms = ($cdom); 3837: if ($coursehash{'checkforpriv'}) { 3838: push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); 3839: } 3840: if (&privileged($uname,$udom,\@possdoms)) { 3841: $skipuser = 1; 3842: if ($coursehash{'nothideprivileged'}) { 3843: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 3844: my $user; 3845: if ($item =~ /:/) { 3846: $user = $item; 3847: } else { 3848: $user = join(':',split(/[\@]/,$item)); 3849: } 3850: if ($user eq $uname.':'.$udom) { 3851: undef($skipuser); 3852: last; 3853: } 3854: } 3855: } 3856: if ($skipuser) { 3857: return 0; 3858: } 3859: } 3860: } 3861: $type ||= 'any'; 3862: if (!defined($cdom) || !defined($cnum)) { 3863: my $cid = $env{'request.course.id'}; 3864: $cdom = $env{'course.'.$cid.'.domain'}; 3865: $cnum = $env{'course.'.$cid.'.num'}; 3866: } 3867: my $typesref; 3868: if (($type eq 'any') || ($type eq 'all')) { 3869: $typesref = ['active','previous','future']; 3870: } elsif ($type eq 'previous' || $type eq 'future') { 3871: $typesref = [$type]; 3872: } 3873: my %roles = &get_my_roles($uname,$udom,'userroles', 3874: $typesref,undef,[$cdom]); 3875: my ($tmp) = keys(%roles); 3876: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i); 3877: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles)); 3878: if (@course_roles > 0) { 3879: return 1; 3880: } 3881: return 0; 3882: } 3883: 3884: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course 3885: # input: action, courseID, current domain, intended 3886: # path to file, source of file, instruction to parse file for objects, 3887: # ref to hash for embedded objects, 3888: # ref to hash for codebase of java objects. 3889: # reference to scalar to accommodate mime type determined 3890: # from File::MMagic if $parser = parse. 3891: # 3892: # output: url to file (if action was uploaddoc), 3893: # ok if successful, or diagnostic message otherwise (if action was propagate or copy) 3894: # 3895: # Allows directory structure to be used within lonUsers/../userfiles/ for a 3896: # course. 3897: # 3898: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 3899: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in 3900: # course's home server. 3901: # 3902: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will 3903: # be copied from $source (current location) to 3904: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 3905: # and will then be copied to 3906: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in 3907: # course's home server. 3908: # 3909: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 3910: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to 3911: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file 3912: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file 3913: # in course's home server. 3914: # 3915: 3916: sub process_coursefile { 3917: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase, 3918: $mimetype)=@_; 3919: my $fetchresult; 3920: my $home=&homeserver($docuname,$docudom); 3921: if ($action eq 'propagate') { 3922: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 3923: $home); 3924: } else { 3925: my $fpath = ''; 3926: my $fname = $file; 3927: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); 3928: $fpath=$docudom.'/'.$docuname.'/'.$fpath; 3929: my $filepath = &build_filepath($fpath); 3930: if ($action eq 'copy') { 3931: if ($source eq '') { 3932: $fetchresult = 'no source file'; 3933: return $fetchresult; 3934: } else { 3935: my $destination = $filepath.'/'.$fname; 3936: rename($source,$destination); 3937: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 3938: $home); 3939: } 3940: } elsif ($action eq 'uploaddoc') { 3941: open(my $fh,'>',$filepath.'/'.$fname); 3942: print $fh $env{'form.'.$source}; 3943: close($fh); 3944: if ($parser eq 'parse') { 3945: my $mm = new File::MMagic; 3946: my $type = $mm->checktype_filename($filepath.'/'.$fname); 3947: if ($type eq 'text/html') { 3948: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase); 3949: unless ($parse_result eq 'ok') { 3950: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result); 3951: } 3952: } 3953: if (ref($mimetype)) { 3954: $$mimetype = $type; 3955: } 3956: } 3957: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 3958: $home); 3959: if ($fetchresult eq 'ok') { 3960: return '/uploaded/'.$fpath.'/'.$fname; 3961: } else { 3962: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 3963: ' to host '.$home.': '.$fetchresult); 3964: return '/adm/notfound.html'; 3965: } 3966: } 3967: } 3968: unless ( $fetchresult eq 'ok') { 3969: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 3970: ' to host '.$home.': '.$fetchresult); 3971: } 3972: return $fetchresult; 3973: } 3974: 3975: sub build_filepath { 3976: my ($fpath) = @_; 3977: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles'; 3978: unless ($fpath eq '') { 3979: my @parts=split('/',$fpath); 3980: foreach my $part (@parts) { 3981: $filepath.= '/'.$part; 3982: if ((-e $filepath)!=1) { 3983: mkdir($filepath,0777); 3984: } 3985: } 3986: } 3987: return $filepath; 3988: } 3989: 3990: sub store_edited_file { 3991: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_; 3992: my $file = $primary_url; 3993: $file =~ s#^/uploaded/$docudom/$docuname/##; 3994: my $fpath = ''; 3995: my $fname = $file; 3996: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); 3997: $fpath=$docudom.'/'.$docuname.'/'.$fpath; 3998: my $filepath = &build_filepath($fpath); 3999: open(my $fh,'>',$filepath.'/'.$fname); 4000: print $fh $content; 4001: close($fh); 4002: my $home=&homeserver($docuname,$docudom); 4003: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, 4004: $home); 4005: if ($$fetchresult eq 'ok') { 4006: return '/uploaded/'.$fpath.'/'.$fname; 4007: } else { 4008: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. 4009: ' to host '.$home.': '.$$fetchresult); 4010: return '/adm/notfound.html'; 4011: } 4012: } 4013: 4014: sub clean_filename { 4015: my ($fname,$args)=@_; 4016: # Replace Windows backslashes by forward slashes 4017: $fname=~s/\\/\//g; 4018: if (!$args->{'keep_path'}) { 4019: # Get rid of everything but the actual filename 4020: $fname=~s/^.*\/([^\/]+)$/$1/; 4021: } 4022: # Replace spaces by underscores 4023: $fname=~s/\s+/\_/g; 4024: # Transliterate non-ascii text to ascii 4025: my $lang = &Apache::lonlocal::current_language(); 4026: $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang); 4027: # Replace all other weird characters by nothing 4028: $fname=~s{[^/\w\.\-]}{}g; 4029: # Replace all .\d. sequences with _\d. so they no longer look like version 4030: # numbers 4031: $fname=~s/\.(\d+)(?=\.)/_$1/g; 4032: return $fname; 4033: } 4034: 4035: # This Function checks if an Image's dimensions exceed either $resizewidth (width) 4036: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an 4037: # image with the same aspect ratio as the original, but with dimensions which do 4038: # not exceed $resizewidth and $resizeheight. 4039: 4040: sub resizeImage { 4041: my ($img_path,$resizewidth,$resizeheight) = @_; 4042: my $ima = Image::Magick->new; 4043: my $resized; 4044: if (-e $img_path) { 4045: $ima->Read($img_path); 4046: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) { 4047: my $width = $ima->Get('width'); 4048: my $height = $ima->Get('height'); 4049: if ($width > $resizewidth) { 4050: my $factor = $width/$resizewidth; 4051: my $newheight = $height/$factor; 4052: $ima->Scale(width=>$resizewidth,height=>$newheight); 4053: $resized = 1; 4054: } 4055: } 4056: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) { 4057: my $width = $ima->Get('width'); 4058: my $height = $ima->Get('height'); 4059: if ($height > $resizeheight) { 4060: my $factor = $height/$resizeheight; 4061: my $newwidth = $width/$factor; 4062: $ima->Scale(width=>$newwidth,height=>$resizeheight); 4063: $resized = 1; 4064: } 4065: } 4066: if ($resized) { 4067: $ima->Write($img_path); 4068: } 4069: } 4070: return; 4071: } 4072: 4073: # --------------- Take an uploaded file and put it into the userfiles directory 4074: # input: $formname - the contents of the file are in $env{"form.$formname"} 4075: # the desired filename is in $env{"form.$formname.filename"} 4076: # $context - possible values: coursedoc, existingfile, overwrite, 4077: # canceloverwrite, scantron or ''. 4078: # if 'coursedoc': upload to the current course 4079: # if 'existingfile': write file to tmp/overwrites directory 4080: # if 'canceloverwrite': delete file written to tmp/overwrites directory 4081: # $context is passed as argument to &finishuserfileupload 4082: # $subdir - directory in userfile to store the file into 4083: # $parser - instruction to parse file for objects ($parser = parse) or 4084: # if context is 'scantron', $parser is hashref of csv column mapping 4085: # (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3, 4086: # Section => 4, CODE => 5, FirstQuestion => 9 }). 4087: # $allfiles - reference to hash for embedded objects 4088: # $codebase - reference to hash for codebase of java objects 4089: # $desuname - username for permanent storage of uploaded file 4090: # $dsetudom - domain for permanaent storage of uploaded file 4091: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image 4092: # $thumbheight - height (pixels) of thumbnail to make for uploaded image 4093: # $resizewidth - width (pixels) to which to resize uploaded image 4094: # $resizeheight - height (pixels) to which to resize uploaded image 4095: # $mimetype - reference to scalar to accommodate mime type determined 4096: # from File::MMagic. 4097: # 4098: # output: url of file in userspace, or error: <message> 4099: # or /adm/notfound.html if failure to upload occurse 4100: 4101: sub userfileupload { 4102: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname, 4103: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_; 4104: if (!defined($subdir)) { $subdir='unknown'; } 4105: my $fname=$env{'form.'.$formname.'.filename'}; 4106: $fname=&clean_filename($fname); 4107: # See if there is anything left 4108: unless ($fname) { return 'error: no uploaded file'; } 4109: # If filename now begins with a . prepend unix timestamp _ milliseconds 4110: if ($fname =~ /^\./) { 4111: my ($s,$usec) = &gettimeofday(); 4112: while (length($usec) < 6) { 4113: $usec = '0'.$usec; 4114: } 4115: $fname = $s.'_'.substr($usec,0,3).$fname; 4116: } 4117: # Files uploaded to help request form, or uploaded to "create course" page are handled differently 4118: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) || 4119: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) || 4120: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) { 4121: my $now = time; 4122: my $filepath; 4123: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { 4124: $filepath = 'tmp/helprequests/'.$now; 4125: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { 4126: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}. 4127: '_'.$env{'user.domain'}.'/pending'; 4128: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) { 4129: my ($docuname,$docudom); 4130: if ($destudom =~ /^$match_domain$/) { 4131: $docudom = $destudom; 4132: } else { 4133: $docudom = $env{'user.domain'}; 4134: } 4135: if ($destuname =~ /^$match_username$/) { 4136: $docuname = $destuname; 4137: } else { 4138: $docuname = $env{'user.name'}; 4139: } 4140: if (exists($env{'form.group'})) { 4141: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4142: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4143: } 4144: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir; 4145: if ($context eq 'canceloverwrite') { 4146: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname; 4147: if (-e $tempfile) { 4148: my @info = stat($tempfile); 4149: if ($info[9] eq $env{'form.timestamp'}) { 4150: unlink($tempfile); 4151: } 4152: } 4153: return; 4154: } 4155: } 4156: # Create the directory if not present 4157: my @parts=split(/\//,$filepath); 4158: my $fullpath = $perlvar{'lonDaemons'}; 4159: for (my $i=0;$i<@parts;$i++) { 4160: $fullpath .= '/'.$parts[$i]; 4161: if ((-e $fullpath)!=1) { 4162: mkdir($fullpath,0777); 4163: } 4164: } 4165: open(my $fh,'>',$fullpath.'/'.$fname); 4166: print $fh $env{'form.'.$formname}; 4167: close($fh); 4168: if ($context eq 'existingfile') { 4169: my @info = stat($fullpath.'/'.$fname); 4170: return ($fullpath.'/'.$fname,$info[9]); 4171: } else { 4172: return $fullpath.'/'.$fname; 4173: } 4174: } 4175: if ($subdir eq 'scantron') { 4176: $fname = 'scantron_orig_'.$fname; 4177: } else { 4178: $fname="$subdir/$fname"; 4179: } 4180: if ($context eq 'coursedoc') { 4181: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4182: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4183: if ($env{'form.folder'} =~ m/^(default|supplemental)/) { 4184: return &finishuserfileupload($docuname,$docudom, 4185: $formname,$fname,$parser,$allfiles, 4186: $codebase,$thumbwidth,$thumbheight, 4187: $resizewidth,$resizeheight,$context,$mimetype); 4188: } else { 4189: if ($env{'form.folder'}) { 4190: $fname=$env{'form.folder'}.'/'.$fname; 4191: } 4192: return &process_coursefile('uploaddoc',$docuname,$docudom, 4193: $fname,$formname,$parser, 4194: $allfiles,$codebase,$mimetype); 4195: } 4196: } elsif (defined($destuname)) { 4197: my $docuname=$destuname; 4198: my $docudom=$destudom; 4199: return &finishuserfileupload($docuname,$docudom,$formname,$fname, 4200: $parser,$allfiles,$codebase, 4201: $thumbwidth,$thumbheight, 4202: $resizewidth,$resizeheight,$context,$mimetype); 4203: } else { 4204: my $docuname=$env{'user.name'}; 4205: my $docudom=$env{'user.domain'}; 4206: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) { 4207: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; 4208: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 4209: } 4210: return &finishuserfileupload($docuname,$docudom,$formname,$fname, 4211: $parser,$allfiles,$codebase, 4212: $thumbwidth,$thumbheight, 4213: $resizewidth,$resizeheight,$context,$mimetype); 4214: } 4215: } 4216: 4217: sub finishuserfileupload { 4218: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase, 4219: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_; 4220: my $path=$docudom.'/'.$docuname.'/'; 4221: my $filepath=$perlvar{'lonDocRoot'}; 4222: 4223: my ($fnamepath,$file,$fetchthumb); 4224: $file=$fname; 4225: if ($fname=~m|/|) { 4226: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|); 4227: $path.=$fnamepath.'/'; 4228: } 4229: my @parts=split(/\//,$filepath.'/userfiles/'.$path); 4230: my $count; 4231: for ($count=4;$count<=$#parts;$count++) { 4232: $filepath.="/$parts[$count]"; 4233: if ((-e $filepath)!=1) { 4234: mkdir($filepath,0777); 4235: } 4236: } 4237: 4238: # Save the file 4239: { 4240: if (!open(FH,'>',$filepath.'/'.$file)) { 4241: &logthis('Failed to create '.$filepath.'/'.$file); 4242: print STDERR ('Failed to create '.$filepath.'/'.$file."\n"); 4243: return '/adm/notfound.html'; 4244: } 4245: if ($context eq 'overwrite') { 4246: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname; 4247: my $target = $filepath.'/'.$file; 4248: if (-e $source) { 4249: my @info = stat($source); 4250: if ($info[9] eq $env{'form.timestamp'}) { 4251: unless (&File::Copy::move($source,$target)) { 4252: &logthis('Failed to overwrite '.$filepath.'/'.$file); 4253: return "Moving from $source failed"; 4254: } 4255: } else { 4256: return "Temporary file: $source had unexpected date/time for last modification"; 4257: } 4258: } else { 4259: return "Temporary file: $source missing"; 4260: } 4261: } elsif (!print FH ($env{'form.'.$formname})) { 4262: &logthis('Failed to write to '.$filepath.'/'.$file); 4263: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n"); 4264: return '/adm/notfound.html'; 4265: } 4266: close(FH); 4267: if ($resizewidth && $resizeheight) { 4268: my $mm = new File::MMagic; 4269: my $mime_type = $mm->checktype_filename($filepath.'/'.$file); 4270: if ($mime_type =~ m{^image/}) { 4271: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight); 4272: } 4273: } 4274: } 4275: if (($context eq 'coursedoc') || ($parser eq 'parse')) { 4276: if (ref($mimetype)) { 4277: if ($$mimetype eq '') { 4278: my $mm = new File::MMagic; 4279: my $type = $mm->checktype_filename($filepath.'/'.$file); 4280: $$mimetype = $type; 4281: } 4282: } 4283: } 4284: if (($context ne 'scantron') && ($parser eq 'parse')) { 4285: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) { 4286: my $parse_result = &extract_embedded_items($filepath.'/'.$file, 4287: $allfiles,$codebase); 4288: unless ($parse_result eq 'ok') { 4289: &logthis('Failed to parse '.$filepath.$file. 4290: ' for embedded media: '.$parse_result); 4291: } 4292: } 4293: } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) { 4294: my $format = $env{'form.scantron_format'}; 4295: &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format); 4296: } 4297: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) { 4298: my $input = $filepath.'/'.$file; 4299: my $output = $filepath.'/'.'tn-'.$file; 4300: my $thumbsize = $thumbwidth.'x'.$thumbheight; 4301: my @args = ('convert','-sample',$thumbsize,$input,$output); 4302: system({$args[0]} @args); 4303: if (-e $filepath.'/'.'tn-'.$file) { 4304: $fetchthumb = 1; 4305: } 4306: } 4307: 4308: # Notify homeserver to grep it 4309: # 4310: my $docuhome=&homeserver($docuname,$docudom); 4311: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome); 4312: if ($fetchresult eq 'ok') { 4313: if ($fetchthumb) { 4314: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome); 4315: if ($thumbresult ne 'ok') { 4316: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '. 4317: $docuhome.': '.$thumbresult); 4318: } 4319: } 4320: # 4321: # Return the URL to it 4322: return '/uploaded/'.$path.$file; 4323: } else { 4324: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome. 4325: ': '.$fetchresult); 4326: return '/adm/notfound.html'; 4327: } 4328: } 4329: 4330: sub extract_embedded_items { 4331: my ($fullpath,$allfiles,$codebase,$content) = @_; 4332: my @state = (); 4333: my (%lastids,%related,%shockwave,%flashvars); 4334: my %javafiles = ( 4335: codebase => '', 4336: code => '', 4337: archive => '' 4338: ); 4339: my %mediafiles = ( 4340: src => '', 4341: movie => '', 4342: ); 4343: my $p; 4344: if ($content) { 4345: $p = HTML::LCParser->new($content); 4346: } else { 4347: $p = HTML::LCParser->new($fullpath); 4348: } 4349: while (my $t=$p->get_token()) { 4350: if ($t->[0] eq 'S') { 4351: my ($tagname, $attr) = ($t->[1],$t->[2]); 4352: push(@state, $tagname); 4353: if (lc($tagname) eq 'allow') { 4354: &add_filetype($allfiles,$attr->{'src'},'src'); 4355: } 4356: if (lc($tagname) eq 'img') { 4357: &add_filetype($allfiles,$attr->{'src'},'src'); 4358: } 4359: if (lc($tagname) eq 'a') { 4360: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) { 4361: &add_filetype($allfiles,$attr->{'href'},'href'); 4362: } 4363: } 4364: if (lc($tagname) eq 'script') { 4365: my $src; 4366: if ($attr->{'archive'} =~ /\.jar$/i) { 4367: &add_filetype($allfiles,$attr->{'archive'},'archive'); 4368: } else { 4369: if ($attr->{'src'} ne '') { 4370: $src = $attr->{'src'}; 4371: &add_filetype($allfiles,$src,'src'); 4372: } 4373: } 4374: my $text = $p->get_trimmed_text(); 4375: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) { 4376: my @swfargs = split(/,/,$1); 4377: foreach my $item (@swfargs) { 4378: $item =~ s/["']//g; 4379: $item =~ s/^\s+//; 4380: $item =~ s/\s+$//; 4381: } 4382: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) { 4383: if (ref($related{$swfargs[0]}) eq 'ARRAY') { 4384: push(@{$related{$swfargs[0]}},$swfargs[2]); 4385: } else { 4386: $related{$swfargs[0]} = [$swfargs[2]]; 4387: } 4388: } 4389: } 4390: } 4391: if (lc($tagname) eq 'link') { 4392: if (lc($attr->{'rel'}) eq 'stylesheet') { 4393: &add_filetype($allfiles,$attr->{'href'},'href'); 4394: } 4395: } 4396: if (lc($tagname) eq 'object' || 4397: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) { 4398: foreach my $item (keys(%javafiles)) { 4399: $javafiles{$item} = ''; 4400: } 4401: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) { 4402: $lastids{lc($tagname)} = $attr->{'id'}; 4403: } 4404: } 4405: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') { 4406: my $name = lc($attr->{'name'}); 4407: foreach my $item (keys(%javafiles)) { 4408: if ($name eq $item) { 4409: $javafiles{$item} = $attr->{'value'}; 4410: last; 4411: } 4412: } 4413: my $pathfrom; 4414: foreach my $item (keys(%mediafiles)) { 4415: if ($name eq $item) { 4416: $pathfrom = $attr->{'value'}; 4417: $shockwave{$lastids{lc($state[-2])}} = $pathfrom; 4418: &add_filetype($allfiles,$pathfrom,$name); 4419: last; 4420: } 4421: } 4422: if ($name eq 'flashvars') { 4423: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'}; 4424: } 4425: if ($pathfrom ne '') { 4426: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])}, 4427: $pathfrom); 4428: } 4429: } 4430: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') { 4431: foreach my $item (keys(%javafiles)) { 4432: if ($attr->{$item}) { 4433: $javafiles{$item} = $attr->{$item}; 4434: last; 4435: } 4436: } 4437: foreach my $item (keys(%mediafiles)) { 4438: if ($attr->{$item}) { 4439: &add_filetype($allfiles,$attr->{$item},$item); 4440: last; 4441: } 4442: } 4443: if (lc($tagname) eq 'embed') { 4444: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) { 4445: &embedded_dependency($allfiles,\%related,$attr->{'name'}, 4446: $attr->{'src'}); 4447: } 4448: } 4449: } 4450: if (lc($tagname) eq 'iframe') { 4451: my $src = $attr->{'src'} ; 4452: if (($src ne '') && ($src !~ m{^(/|https?://)})) { 4453: &add_filetype($allfiles,$src,'src'); 4454: } elsif ($src =~ m{^/}) { 4455: if ($env{'request.course.id'}) { 4456: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 4457: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 4458: my $url = &hreflocation('',$fullpath); 4459: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) { 4460: my $relpath = $1; 4461: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) { 4462: &add_filetype($allfiles,$1,'src'); 4463: } 4464: } 4465: } 4466: } 4467: } 4468: if ($t->[4] =~ m{/>$}) { 4469: pop(@state); 4470: } 4471: } elsif ($t->[0] eq 'E') { 4472: my ($tagname) = ($t->[1]); 4473: if ($javafiles{'codebase'} ne '') { 4474: $javafiles{'codebase'} .= '/'; 4475: } 4476: if (lc($tagname) eq 'applet' || 4477: lc($tagname) eq 'object' || 4478: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object') 4479: ) { 4480: foreach my $item (keys(%javafiles)) { 4481: if ($item ne 'codebase' && $javafiles{$item} ne '') { 4482: my $file=$javafiles{'codebase'}.$javafiles{$item}; 4483: &add_filetype($allfiles,$file,$item); 4484: } 4485: } 4486: } 4487: pop @state; 4488: } 4489: } 4490: foreach my $id (sort(keys(%flashvars))) { 4491: if ($shockwave{$id} ne '') { 4492: my @pairs = split(/\&/,$flashvars{$id}); 4493: foreach my $pair (@pairs) { 4494: my ($key,$value) = split(/\=/,$pair); 4495: if ($key eq 'thumb') { 4496: &add_filetype($allfiles,$value,$key); 4497: } elsif ($key eq 'content') { 4498: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$}); 4499: my ($ext) = ($value =~ /\.([^.]+)$/); 4500: if ($ext ne '') { 4501: &add_filetype($allfiles,$path.$value,$ext); 4502: } 4503: } 4504: } 4505: } 4506: } 4507: return 'ok'; 4508: } 4509: 4510: sub add_filetype { 4511: my ($allfiles,$file,$type)=@_; 4512: if (exists($allfiles->{$file})) { 4513: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) { 4514: push(@{$allfiles->{$file}}, &escape($type)); 4515: } 4516: } else { 4517: @{$allfiles->{$file}} = (&escape($type)); 4518: } 4519: } 4520: 4521: sub embedded_dependency { 4522: my ($allfiles,$related,$identifier,$pathfrom) = @_; 4523: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) { 4524: if (($identifier ne '') && 4525: (ref($related->{$identifier}) eq 'ARRAY') && 4526: ($pathfrom ne '')) { 4527: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$}); 4528: foreach my $dep (@{$related->{$identifier}}) { 4529: &add_filetype($allfiles,$path.$dep,'object'); 4530: } 4531: } 4532: } 4533: return; 4534: } 4535: 4536: sub bubblesheet_converter { 4537: my ($cdom,$fullpath,$config,$format) = @_; 4538: if ((&domain($cdom) ne '') && 4539: ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) && 4540: (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) { 4541: my (%csvcols,%csvoptions); 4542: if (ref($config->{'fields'}) eq 'HASH') { 4543: %csvcols = %{$config->{'fields'}}; 4544: } 4545: if (ref($config->{'options'}) eq 'HASH') { 4546: %csvoptions = %{$config->{'options'}}; 4547: } 4548: my %csvbynum = reverse(%csvcols); 4549: my %scantronconf = &get_scantron_config($format,$cdom); 4550: if (keys(%scantronconf)) { 4551: my %bynum = ( 4552: $scantronconf{CODEstart} => 'CODEstart', 4553: $scantronconf{IDstart} => 'IDstart', 4554: $scantronconf{PaperID} => 'PaperID', 4555: $scantronconf{FirstName} => 'FirstName', 4556: $scantronconf{LastName} => 'LastName', 4557: $scantronconf{Qstart} => 'Qstart', 4558: ); 4559: my @ordered; 4560: foreach my $item (sort { $a <=> $b } keys(%bynum)) { 4561: push(@ordered,$bynum{$item}); 4562: } 4563: my %mapstart = ( 4564: CODEstart => 'CODE', 4565: IDstart => 'ID', 4566: PaperID => 'PaperID', 4567: FirstName => 'FirstName', 4568: LastName => 'LastName', 4569: Qstart => 'FirstQuestion', 4570: ); 4571: my %maplength = ( 4572: CODEstart => 'CODElength', 4573: IDstart => 'IDlength', 4574: PaperID => 'PaperIDlength', 4575: FirstName => 'FirstNamelength', 4576: LastName => 'LastNamelength', 4577: ); 4578: if (open(my $fh,'<',$fullpath)) { 4579: my $output; 4580: my %lettdig = &letter_to_digits(); 4581: my %diglett = reverse(%lettdig); 4582: my $numletts = scalar(keys(%lettdig)); 4583: my $num = 0; 4584: while (my $line=<$fh>) { 4585: $num ++; 4586: next if (($num == 1) && ($csvoptions{'hdr'} == 1)); 4587: $line =~ s{[\r\n]+$}{}; 4588: my %found; 4589: my @values = split(/,/,$line); 4590: my ($qstart,$record); 4591: for (my $i=0; $i<@values; $i++) { 4592: if ((($qstart ne '') && ($i > $qstart)) || 4593: ($csvbynum{$i} eq 'FirstQuestion')) { 4594: if ($values[$i] eq '') { 4595: $values[$i] = $scantronconf{'Qoff'}; 4596: } elsif ($scantronconf{'Qon'} eq 'number') { 4597: if ($values[$i] =~ /^[A-Ja-j]$/) { 4598: $values[$i] = $lettdig{uc($values[$i])}; 4599: } 4600: } elsif ($scantronconf{'Qon'} eq 'letter') { 4601: if ($values[$i] =~ /^[0-9]$/) { 4602: $values[$i] = $diglett{$values[$i]}; 4603: } 4604: } else { 4605: if ($values[$i] =~ /^[0-9A-Ja-j]$/) { 4606: my $digit; 4607: if ($values[$i] =~ /^[A-Ja-j]$/) { 4608: $digit = $lettdig{uc($values[$i])}-1; 4609: if ($values[$i] eq 'J') { 4610: $digit += $numletts; 4611: } 4612: } elsif ($values[$i] =~ /^[0-9]$/) { 4613: $digit = $values[$i]-1; 4614: if ($values[$i] eq '0') { 4615: $digit += $numletts; 4616: } 4617: } 4618: my $qval=''; 4619: for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) { 4620: if ($j == $digit) { 4621: $qval .= $scantronconf{'Qon'}; 4622: } else { 4623: $qval .= $scantronconf{'Qoff'}; 4624: } 4625: } 4626: $values[$i] = $qval; 4627: } 4628: } 4629: if (length($values[$i]) > $scantronconf{'Qlength'}) { 4630: $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'}); 4631: } 4632: my $numblank = $scantronconf{'Qlength'} - length($values[$i]); 4633: if ($numblank > 0) { 4634: $values[$i] .= ($scantronconf{'Qoff'} x $numblank); 4635: } 4636: if ($csvbynum{$i} eq 'FirstQuestion') { 4637: $qstart = $i; 4638: $found{$csvbynum{$i}} = $values[$i]; 4639: } else { 4640: $found{'FirstQuestion'} .= $values[$i]; 4641: } 4642: } elsif (exists($csvbynum{$i})) { 4643: if ($csvoptions{'rem'}) { 4644: $values[$i] =~ s/^\s+//; 4645: } 4646: if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) { 4647: while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) { 4648: $values[$i] = '0'.$values[$i]; 4649: } 4650: } 4651: $found{$csvbynum{$i}} = $values[$i]; 4652: } 4653: } 4654: foreach my $item (@ordered) { 4655: my $currlength = 1+length($record); 4656: my $numspaces = $scantronconf{$item} - $currlength; 4657: if ($numspaces > 0) { 4658: $record .= (' ' x $numspaces); 4659: } 4660: if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) { 4661: unless ($item eq 'Qstart') { 4662: if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) { 4663: $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}}); 4664: } 4665: } 4666: $record .= $found{$mapstart{$item}}; 4667: } 4668: } 4669: $output .= "$record\n"; 4670: } 4671: close($fh); 4672: if ($output) { 4673: if (open(my $fh,'>',$fullpath)) { 4674: print $fh $output; 4675: close($fh); 4676: } 4677: } 4678: } 4679: } 4680: return; 4681: } 4682: } 4683: 4684: sub letter_to_digits { 4685: my %lettdig = ( 4686: A => 1, 4687: B => 2, 4688: C => 3, 4689: D => 4, 4690: E => 5, 4691: F => 6, 4692: G => 7, 4693: H => 8, 4694: I => 9, 4695: J => 0, 4696: ); 4697: return %lettdig; 4698: } 4699: 4700: sub get_scantron_config { 4701: my ($which,$cdom) = @_; 4702: my @lines = &get_scantronformat_file($cdom); 4703: my %config; 4704: #FIXME probably should move to XML it has already gotten a bit much now 4705: foreach my $line (@lines) { 4706: my ($name,$descrip)=split(/:/,$line); 4707: if ($name ne $which ) { next; } 4708: chomp($line); 4709: my @config=split(/:/,$line); 4710: $config{'name'}=$config[0]; 4711: $config{'description'}=$config[1]; 4712: $config{'CODElocation'}=$config[2]; 4713: $config{'CODEstart'}=$config[3]; 4714: $config{'CODElength'}=$config[4]; 4715: $config{'IDstart'}=$config[5]; 4716: $config{'IDlength'}=$config[6]; 4717: $config{'Qstart'}=$config[7]; 4718: $config{'Qlength'}=$config[8]; 4719: $config{'Qoff'}=$config[9]; 4720: $config{'Qon'}=$config[10]; 4721: $config{'PaperID'}=$config[11]; 4722: $config{'PaperIDlength'}=$config[12]; 4723: $config{'FirstName'}=$config[13]; 4724: $config{'FirstNamelength'}=$config[14]; 4725: $config{'LastName'}=$config[15]; 4726: $config{'LastNamelength'}=$config[16]; 4727: $config{'BubblesPerRow'}=$config[17]; 4728: last; 4729: } 4730: return %config; 4731: } 4732: 4733: sub get_scantronformat_file { 4734: my ($cdom) = @_; 4735: if ($cdom eq '') { 4736: $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'}; 4737: } 4738: my %domconfig = &get_dom('configuration',['scantron'],$cdom); 4739: my $gottab = 0; 4740: my @lines; 4741: if (ref($domconfig{'scantron'}) eq 'HASH') { 4742: if ($domconfig{'scantron'}{'scantronformat'} ne '') { 4743: my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'}); 4744: if ($formatfile ne '-1') { 4745: @lines = split("\n",$formatfile,-1); 4746: $gottab = 1; 4747: } 4748: } 4749: } 4750: if (!$gottab) { 4751: my $confname = $cdom.'-domainconfig'; 4752: my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab'; 4753: my $formatfile = &getfile($default); 4754: if ($formatfile ne '-1') { 4755: @lines = split("\n",$formatfile,-1); 4756: $gottab = 1; 4757: } 4758: } 4759: if (!$gottab) { 4760: my @domains = &current_machine_domains(); 4761: if (grep(/^\Q$cdom\E$/,@domains)) { 4762: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) { 4763: @lines = <$fh>; 4764: close($fh); 4765: } 4766: } else { 4767: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) { 4768: @lines = <$fh>; 4769: close($fh); 4770: } 4771: } 4772: } 4773: return @lines; 4774: } 4775: 4776: sub removeuploadedurl { 4777: my ($url)=@_; 4778: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5); 4779: return &removeuserfile($uname,$udom,$fname); 4780: } 4781: 4782: sub removeuserfile { 4783: my ($docuname,$docudom,$fname)=@_; 4784: my $home=&homeserver($docuname,$docudom); 4785: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home); 4786: if ($result eq 'ok') { 4787: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) { 4788: my $metafile = $fname.'.meta'; 4789: my $metaresult = &removeuserfile($docuname,$docudom,$metafile); 4790: my $url = "/uploaded/$docudom/$docuname/$fname"; 4791: my ($file,$group) = (&parse_portfolio_url($url))[3,4]; 4792: my $sqlresult = 4793: &update_portfolio_table($docuname,$docudom,$file, 4794: 'portfolio_metadata',$group, 4795: 'delete'); 4796: } 4797: } 4798: return $result; 4799: } 4800: 4801: sub mkdiruserfile { 4802: my ($docuname,$docudom,$dir)=@_; 4803: my $home=&homeserver($docuname,$docudom); 4804: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home); 4805: } 4806: 4807: sub renameuserfile { 4808: my ($docuname,$docudom,$old,$new)=@_; 4809: my $home=&homeserver($docuname,$docudom); 4810: my $result = &reply("renameuserfile:$docudom:$docuname:". 4811: &escape("$old").':'.&escape("$new"),$home); 4812: if ($result eq 'ok') { 4813: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) { 4814: my $oldmeta = $old.'.meta'; 4815: my $newmeta = $new.'.meta'; 4816: my $metaresult = 4817: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta); 4818: my $url = "/uploaded/$docudom/$docuname/$old"; 4819: my ($file,$group) = (&parse_portfolio_url($url))[3,4]; 4820: my $sqlresult = 4821: &update_portfolio_table($docuname,$docudom,$file, 4822: 'portfolio_metadata',$group, 4823: 'delete'); 4824: } 4825: } 4826: return $result; 4827: } 4828: 4829: # ------------------------------------------------------------------------- Log 4830: 4831: sub log { 4832: my ($dom,$nam,$hom,$what)=@_; 4833: return critical("log:$dom:$nam:$what",$hom); 4834: } 4835: 4836: # ------------------------------------------------------------------ Course Log 4837: # 4838: # This routine flushes several buffers of non-mission-critical nature 4839: # 4840: 4841: sub flushcourselogs { 4842: &logthis('Flushing log buffers'); 4843: # 4844: # course logs 4845: # This is a log of all transactions in a course, which can be used 4846: # for data mining purposes 4847: # 4848: # It also collects the courseid database, which lists last transaction 4849: # times and course titles for all courseids 4850: # 4851: my %courseidbuffer=(); 4852: foreach my $crsid (keys(%courselogs)) { 4853: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'. 4854: &escape($courselogs{$crsid}), 4855: $coursehombuf{$crsid}) eq 'ok') { 4856: delete $courselogs{$crsid}; 4857: } else { 4858: &logthis('Failed to flush log buffer for '.$crsid); 4859: if (length($courselogs{$crsid})>40000) { 4860: &logthis("WARNING: Buffer for ".$crsid. 4861: " exceeded maximum size, deleting."); 4862: delete $courselogs{$crsid}; 4863: } 4864: } 4865: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = { 4866: 'description' => $coursedescrbuf{$crsid}, 4867: 'inst_code' => $courseinstcodebuf{$crsid}, 4868: 'type' => $coursetypebuf{$crsid}, 4869: 'owner' => $courseownerbuf{$crsid}, 4870: }; 4871: } 4872: # 4873: # Write course id database (reverse lookup) to homeserver of courses 4874: # Is used in pickcourse 4875: # 4876: foreach my $crs_home (keys(%courseidbuffer)) { 4877: my $response = &courseidput(&host_domain($crs_home), 4878: $courseidbuffer{$crs_home}, 4879: $crs_home,'timeonly'); 4880: } 4881: # 4882: # File accesses 4883: # Writes to the dynamic metadata of resources to get hit counts, etc. 4884: # 4885: foreach my $entry (keys(%accesshash)) { 4886: if ($entry =~ /___count$/) { 4887: my ($dom,$name); 4888: ($dom,$name,undef)= 4889: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$}); 4890: if (! defined($dom) || $dom eq '' || 4891: ! defined($name) || $name eq '') { 4892: my $cid = $env{'request.course.id'}; 4893: $dom = $env{'request.'.$cid.'.domain'}; 4894: $name = $env{'request.'.$cid.'.num'}; 4895: } 4896: my $value = $accesshash{$entry}; 4897: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/); 4898: my %temphash=($url => $value); 4899: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name); 4900: if ($result eq 'ok') { 4901: delete $accesshash{$entry}; 4902: } 4903: } else { 4904: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$}); 4905: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; } 4906: my %temphash=($entry => $accesshash{$entry}); 4907: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') { 4908: delete $accesshash{$entry}; 4909: } 4910: } 4911: } 4912: # 4913: # Roles 4914: # Reverse lookup of user roles for course faculty/staff and co-authorship 4915: # 4916: foreach my $entry (keys(%userrolehash)) { 4917: my ($role,$uname,$udom,$runame,$rudom,$rsec)= 4918: split(/\:/,$entry); 4919: if (&Apache::lonnet::put('nohist_userroles', 4920: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} }, 4921: $rudom,$runame) eq 'ok') { 4922: delete $userrolehash{$entry}; 4923: } 4924: } 4925: # 4926: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au) 4927: # 4928: my %domrolebuffer = (); 4929: foreach my $entry (keys(%domainrolehash)) { 4930: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry); 4931: if ($domrolebuffer{$rudom}) { 4932: $domrolebuffer{$rudom}.='&'.&escape($entry). 4933: '='.&escape($domainrolehash{$entry}); 4934: } else { 4935: $domrolebuffer{$rudom}.=&escape($entry). 4936: '='.&escape($domainrolehash{$entry}); 4937: } 4938: delete $domainrolehash{$entry}; 4939: } 4940: foreach my $dom (keys(%domrolebuffer)) { 4941: my %servers; 4942: if (defined(&domain($dom,'primary'))) { 4943: my $primary=&domain($dom,'primary'); 4944: my $hostname=&hostname($primary); 4945: $servers{$primary} = $hostname; 4946: } else { 4947: %servers = &get_servers($dom,'library'); 4948: } 4949: foreach my $tryserver (keys(%servers)) { 4950: if (&reply('domroleput:'.$dom.':'. 4951: $domrolebuffer{$dom},$tryserver) eq 'ok') { 4952: last; 4953: } else { 4954: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver); 4955: } 4956: } 4957: } 4958: $dumpcount++; 4959: } 4960: 4961: sub courselog { 4962: my $what=shift; 4963: $what=time.':'.$what; 4964: unless ($env{'request.course.id'}) { return ''; } 4965: $coursedombuf{$env{'request.course.id'}}= 4966: $env{'course.'.$env{'request.course.id'}.'.domain'}; 4967: $coursenumbuf{$env{'request.course.id'}}= 4968: $env{'course.'.$env{'request.course.id'}.'.num'}; 4969: $coursehombuf{$env{'request.course.id'}}= 4970: $env{'course.'.$env{'request.course.id'}.'.home'}; 4971: $coursedescrbuf{$env{'request.course.id'}}= 4972: $env{'course.'.$env{'request.course.id'}.'.description'}; 4973: $courseinstcodebuf{$env{'request.course.id'}}= 4974: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}; 4975: $courseownerbuf{$env{'request.course.id'}}= 4976: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'}; 4977: $coursetypebuf{$env{'request.course.id'}}= 4978: $env{'course.'.$env{'request.course.id'}.'.type'}; 4979: if (defined $courselogs{$env{'request.course.id'}}) { 4980: $courselogs{$env{'request.course.id'}}.='&'.$what; 4981: } else { 4982: $courselogs{$env{'request.course.id'}}.=$what; 4983: } 4984: if (length($courselogs{$env{'request.course.id'}})>4048) { 4985: &flushcourselogs(); 4986: } 4987: } 4988: 4989: sub courseacclog { 4990: my $fnsymb=shift; 4991: unless ($env{'request.course.id'}) { return ''; } 4992: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'}; 4993: if ($fnsymb=~/$LONCAPA::assess_re/) { 4994: $what.=':POST'; 4995: # FIXME: Probably ought to escape things.... 4996: foreach my $key (keys(%env)) { 4997: if ($key=~/^form\.(.*)/) { 4998: my $formitem = $1; 4999: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) { 5000: $what.=':'.$formitem.'='.$env{$key}; 5001: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) { 5002: $what.=':'.$formitem.'='.$env{$key}; 5003: } 5004: } 5005: } 5006: } elsif ($fnsymb =~ m:^/adm/searchcat:) { 5007: # FIXME: We should not be depending on a form parameter that someone 5008: # editing lonsearchcat.pm might change in the future. 5009: if ($env{'form.phase'} eq 'course_search') { 5010: $what.= ':POST'; 5011: # FIXME: Probably ought to escape things.... 5012: foreach my $element ('courseexp','crsfulltext','crsrelated', 5013: 'crsdiscuss') { 5014: $what.=':'.$element.'='.$env{'form.'.$element}; 5015: } 5016: } 5017: } 5018: &courselog($what); 5019: } 5020: 5021: sub countacc { 5022: my $url=&declutter(shift); 5023: return if (! defined($url) || $url eq ''); 5024: unless ($env{'request.course.id'}) { return ''; } 5025: # 5026: # Mark that this url was used in this course 5027: # 5028: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1; 5029: # 5030: # Increase the access count for this resource in this child process 5031: # 5032: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count'; 5033: $accesshash{$key}++; 5034: } 5035: 5036: sub linklog { 5037: my ($from,$to)=@_; 5038: $from=&declutter($from); 5039: $to=&declutter($to); 5040: $accesshash{$from.'___'.$to.'___comefrom'}=1; 5041: $accesshash{$to.'___'.$from.'___goto'}=1; 5042: } 5043: 5044: sub statslog { 5045: my ($symb,$part,$users,$av_attempts,$degdiff)=@_; 5046: if ($users<2) { return; } 5047: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({ 5048: 'course' => $env{'request.course.id'}, 5049: 'sections' => '"all"', 5050: 'num_students' => $users, 5051: 'part' => $part, 5052: 'symb' => $symb, 5053: 'mean_tries' => $av_attempts, 5054: 'deg_of_diff' => $degdiff}); 5055: foreach my $key (keys(%dynstore)) { 5056: $accesshash{$key}=$dynstore{$key}; 5057: } 5058: } 5059: 5060: sub userrolelog { 5061: my ($trole,$username,$domain,$area,$tstart,$tend)=@_; 5062: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) { 5063: my (undef,$rudom,$runame,$rsec)=split(/\//,$area); 5064: $userrolehash 5065: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} 5066: =$tend.':'.$tstart; 5067: } 5068: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) { 5069: $userrolehash 5070: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'} 5071: =$tend.':'.$tstart; 5072: } 5073: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) { 5074: my (undef,$rudom,$runame,$rsec)=split(/\//,$area); 5075: $domainrolehash 5076: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} 5077: = $tend.':'.$tstart; 5078: } 5079: } 5080: 5081: sub courserolelog { 5082: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_; 5083: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) { 5084: my $cdom = $1; 5085: my $cnum = $2; 5086: my $sec = $3; 5087: my $namespace = 'rolelog'; 5088: my %storehash = ( 5089: role => $trole, 5090: start => $tstart, 5091: end => $tend, 5092: selfenroll => $selfenroll, 5093: context => $context, 5094: ); 5095: if ($trole eq 'gr') { 5096: $namespace = 'groupslog'; 5097: $storehash{'group'} = $sec; 5098: } else { 5099: $storehash{'section'} = $sec; 5100: } 5101: &write_log('course',$namespace,\%storehash,$delflag,$username, 5102: $domain,$cnum,$cdom); 5103: if (($trole ne 'st') || ($sec ne '')) { 5104: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum); 5105: } 5106: } 5107: return; 5108: } 5109: 5110: sub domainrolelog { 5111: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_; 5112: if ($area =~ m{^/($match_domain)/$}) { 5113: my $cdom = $1; 5114: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom); 5115: my $namespace = 'rolelog'; 5116: my %storehash = ( 5117: role => $trole, 5118: start => $tstart, 5119: end => $tend, 5120: context => $context, 5121: ); 5122: &write_log('domain',$namespace,\%storehash,$delflag,$username, 5123: $domain,$domconfiguser,$cdom); 5124: } 5125: return; 5126: 5127: } 5128: 5129: sub coauthorrolelog { 5130: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_; 5131: if ($area =~ m{^/($match_domain)/($match_username)$}) { 5132: my $audom = $1; 5133: my $auname = $2; 5134: my $namespace = 'rolelog'; 5135: my %storehash = ( 5136: role => $trole, 5137: start => $tstart, 5138: end => $tend, 5139: context => $context, 5140: ); 5141: &write_log('author',$namespace,\%storehash,$delflag,$username, 5142: $domain,$auname,$audom); 5143: } 5144: return; 5145: } 5146: 5147: sub get_course_adv_roles { 5148: my ($cid,$codes) = @_; 5149: $cid=$env{'request.course.id'} unless (defined($cid)); 5150: my %coursehash=&coursedescription($cid); 5151: my $crstype = &Apache::loncommon::course_type($cid); 5152: my %nothide=(); 5153: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 5154: if ($user !~ /:/) { 5155: $nothide{join(':',split(/[\@]/,$user))}=1; 5156: } else { 5157: $nothide{$user}=1; 5158: } 5159: } 5160: my @possdoms = ($coursehash{'domain'}); 5161: if ($coursehash{'checkforpriv'}) { 5162: push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); 5163: } 5164: my %returnhash=(); 5165: my %dumphash= 5166: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'}); 5167: my $now=time; 5168: my %privileged; 5169: foreach my $entry (keys(%dumphash)) { 5170: my ($tend,$tstart)=split(/\:/,$dumphash{$entry}); 5171: if (($tstart) && ($tstart<0)) { next; } 5172: if (($tend) && ($tend<$now)) { next; } 5173: if (($tstart) && ($now<$tstart)) { next; } 5174: my ($role,$username,$domain,$section)=split(/\:/,$entry); 5175: if ($username eq '' || $domain eq '') { next; } 5176: if ((&privileged($username,$domain,\@possdoms)) && 5177: (!$nothide{$username.':'.$domain})) { next; } 5178: if ($role eq 'cr') { next; } 5179: if ($codes) { 5180: if ($section) { $role .= ':'.$section; } 5181: if ($returnhash{$role}) { 5182: $returnhash{$role}.=','.$username.':'.$domain; 5183: } else { 5184: $returnhash{$role}=$username.':'.$domain; 5185: } 5186: } else { 5187: my $key=&plaintext($role,$crstype); 5188: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; } 5189: if ($returnhash{$key}) { 5190: $returnhash{$key}.=','.$username.':'.$domain; 5191: } else { 5192: $returnhash{$key}=$username.':'.$domain; 5193: } 5194: } 5195: } 5196: return %returnhash; 5197: } 5198: 5199: sub get_my_roles { 5200: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_; 5201: unless (defined($uname)) { $uname=$env{'user.name'}; } 5202: unless (defined($udom)) { $udom=$env{'user.domain'}; } 5203: my (%dumphash,%nothide); 5204: if ($context eq 'userroles') { 5205: %dumphash = &dump('roles',$udom,$uname); 5206: } else { 5207: %dumphash = &dump('nohist_userroles',$udom,$uname); 5208: if ($hidepriv) { 5209: my %coursehash=&coursedescription($udom.'_'.$uname); 5210: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { 5211: if ($user !~ /:/) { 5212: $nothide{join(':',split(/[\@]/,$user))} = 1; 5213: } else { 5214: $nothide{$user} = 1; 5215: } 5216: } 5217: } 5218: } 5219: my %returnhash=(); 5220: my $now=time; 5221: my %privileged; 5222: foreach my $entry (keys(%dumphash)) { 5223: my ($role,$tend,$tstart); 5224: if ($context eq 'userroles') { 5225: next if ($entry =~ /^rolesdef/); 5226: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry}); 5227: } else { 5228: ($tend,$tstart)=split(/\:/,$dumphash{$entry}); 5229: } 5230: if (($tstart) && ($tstart<0)) { next; } 5231: my $status = 'active'; 5232: if (($tend) && ($tend<=$now)) { 5233: $status = 'previous'; 5234: } 5235: if (($tstart) && ($now<$tstart)) { 5236: $status = 'future'; 5237: } 5238: if (ref($types) eq 'ARRAY') { 5239: if (!grep(/^\Q$status\E$/,@{$types})) { 5240: next; 5241: } 5242: } else { 5243: if ($status ne 'active') { 5244: next; 5245: } 5246: } 5247: my ($rolecode,$username,$domain,$section,$area); 5248: if ($context eq 'userroles') { 5249: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/); 5250: (undef,$domain,$username,$section) = split(/\//,$area); 5251: } else { 5252: ($role,$username,$domain,$section) = split(/\:/,$entry); 5253: } 5254: if (ref($roledoms) eq 'ARRAY') { 5255: if (!grep(/^\Q$domain\E$/,@{$roledoms})) { 5256: next; 5257: } 5258: } 5259: if (ref($roles) eq 'ARRAY') { 5260: if (!grep(/^\Q$role\E$/,@{$roles})) { 5261: if ($role =~ /^cr\//) { 5262: if (!grep(/^cr$/,@{$roles})) { 5263: next; 5264: } 5265: } elsif ($role =~ /^gr\//) { 5266: if (!grep(/^gr$/,@{$roles})) { 5267: next; 5268: } 5269: } else { 5270: next; 5271: } 5272: } 5273: } 5274: if ($hidepriv) { 5275: my @privroles = ('dc','su'); 5276: if ($context eq 'userroles') { 5277: next if (grep(/^\Q$role\E$/,@privroles)); 5278: } else { 5279: my $possdoms = [$domain]; 5280: if (ref($roledoms) eq 'ARRAY') { 5281: push(@{$possdoms},@{$roledoms}); 5282: } 5283: if (&privileged($username,$domain,$possdoms,\@privroles)) { 5284: if (!$nothide{$username.':'.$domain}) { 5285: next; 5286: } 5287: } 5288: } 5289: } 5290: if ($withsec) { 5291: $returnhash{$username.':'.$domain.':'.$role.':'.$section} = 5292: $tstart.':'.$tend; 5293: } else { 5294: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend; 5295: } 5296: } 5297: return %returnhash; 5298: } 5299: 5300: sub get_all_adhocroles { 5301: my ($dom) = @_; 5302: my @roles_by_num = (); 5303: my %domdefaults = &get_domain_defaults($dom); 5304: my (%description,%access_in_dom,%access_info); 5305: if (ref($domdefaults{'adhocroles'}) eq 'HASH') { 5306: my $count = 0; 5307: my %domcurrent = %{$domdefaults{'adhocroles'}}; 5308: my %ordered; 5309: foreach my $role (sort(keys(%domcurrent))) { 5310: my ($order,$desc,$access_in_dom); 5311: if (ref($domcurrent{$role}) eq 'HASH') { 5312: $order = $domcurrent{$role}{'order'}; 5313: $desc = $domcurrent{$role}{'desc'}; 5314: $access_in_dom{$role} = $domcurrent{$role}{'access'}; 5315: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}}; 5316: } 5317: if ($order eq '') { 5318: $order = $count; 5319: } 5320: $ordered{$order} = $role; 5321: if ($desc ne '') { 5322: $description{$role} = $desc; 5323: } else { 5324: $description{$role}= $role; 5325: } 5326: $count++; 5327: } 5328: foreach my $item (sort {$a <=> $b } (keys(%ordered))) { 5329: push(@roles_by_num,$ordered{$item}); 5330: } 5331: } 5332: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info); 5333: } 5334: 5335: sub get_my_adhocroles { 5336: my ($cid,$checkreg) = @_; 5337: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num); 5338: if ($env{'request.course.id'} eq $cid) { 5339: $cdom = $env{'course.'.$cid.'.domain'}; 5340: $cnum = $env{'course.'.$cid.'.num'}; 5341: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'}; 5342: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) { 5343: $cdom = $1; 5344: $cnum = $2; 5345: %info = &Apache::lonnet::get('environment',['internal.coursecode'], 5346: $cdom,$cnum); 5347: } 5348: if (($info{'internal.coursecode'} ne '') && ($checkreg)) { 5349: my $user = $env{'user.name'}.':'.$env{'user.domain'}; 5350: my %rosterhash = &get('classlist',[$user],$cdom,$cnum); 5351: if ($rosterhash{$user} ne '') { 5352: my $type = (split(/:/,$rosterhash{$user}))[5]; 5353: return ([],{}) if ($type eq 'auto'); 5354: } 5355: } 5356: if (($cdom ne '') && ($cnum ne '')) { 5357: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) { 5358: my $then=$env{'user.login.time'}; 5359: my $update=$env{'user.update.time'}; 5360: if (!$update) { 5361: $update = $then; 5362: } 5363: my @liveroles; 5364: foreach my $role ('dh','da') { 5365: if ($env{"user.role.$role./$cdom/"}) { 5366: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"}); 5367: my $limit = $update; 5368: if ($env{'request.role'} eq "$role./$cdom/") { 5369: $limit = $then; 5370: } 5371: my $activerole = 1; 5372: if ($tstart && $tstart>$limit) { $activerole = 0; } 5373: if ($tend && $tend <$limit) { $activerole = 0; } 5374: if ($activerole) { 5375: push(@liveroles,$role); 5376: } 5377: } 5378: } 5379: if (@liveroles) { 5380: if (&homeserver($cnum,$cdom) ne 'no_host') { 5381: my ($accessref,$accessinfo,%access_in_dom); 5382: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom); 5383: if (ref($roles_by_num) eq 'ARRAY') { 5384: if (@{$roles_by_num}) { 5385: my %settings; 5386: if ($env{'request.course.id'} eq $cid) { 5387: foreach my $envkey (keys(%env)) { 5388: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) { 5389: $settings{$1} = $env{$envkey}; 5390: } 5391: } 5392: } else { 5393: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc'); 5394: } 5395: my %setincrs; 5396: if ($settings{'internal.adhocaccess'}) { 5397: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'}); 5398: } 5399: my @statuses; 5400: if ($env{'environment.inststatus'}) { 5401: @statuses = split(/,/,$env{'environment.inststatus'}); 5402: } 5403: my $user = $env{'user.name'}.':'.$env{'user.domain'}; 5404: if (ref($accessref) eq 'HASH') { 5405: %access_in_dom = %{$accessref}; 5406: } 5407: foreach my $role (@{$roles_by_num}) { 5408: my ($curraccess,@okstatus,@personnel); 5409: if ($setincrs{$role}) { 5410: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role}); 5411: if ($curraccess eq 'status') { 5412: @okstatus = split(/\&/,$rest); 5413: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5414: @personnel = split(/\&/,$rest); 5415: } 5416: } else { 5417: $curraccess = $access_in_dom{$role}; 5418: if (ref($accessinfo) eq 'HASH') { 5419: if ($curraccess eq 'status') { 5420: if (ref($accessinfo->{$role}) eq 'ARRAY') { 5421: @okstatus = @{$accessinfo->{$role}}; 5422: } 5423: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5424: if (ref($accessinfo->{$role}) eq 'ARRAY') { 5425: @personnel = @{$accessinfo->{$role}}; 5426: } 5427: } 5428: } 5429: } 5430: if ($curraccess eq 'none') { 5431: next; 5432: } elsif ($curraccess eq 'all') { 5433: push(@possroles,$role); 5434: } elsif ($curraccess eq 'dh') { 5435: if (grep(/^dh$/,@liveroles)) { 5436: push(@possroles,$role); 5437: } else { 5438: next; 5439: } 5440: } elsif ($curraccess eq 'da') { 5441: if (grep(/^da$/,@liveroles)) { 5442: push(@possroles,$role); 5443: } else { 5444: next; 5445: } 5446: } elsif ($curraccess eq 'status') { 5447: if (@okstatus) { 5448: if (!@statuses) { 5449: if (grep(/^default$/,@okstatus)) { 5450: push(@possroles,$role); 5451: } 5452: } else { 5453: foreach my $status (@okstatus) { 5454: if (grep(/^\Q$status\E$/,@statuses)) { 5455: push(@possroles,$role); 5456: last; 5457: } 5458: } 5459: } 5460: } 5461: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { 5462: if (grep(/^\Q$user\E$/,@personnel)) { 5463: if ($curraccess eq 'exc') { 5464: push(@possroles,$role); 5465: } 5466: } elsif ($curraccess eq 'inc') { 5467: push(@possroles,$role); 5468: } 5469: } 5470: } 5471: } 5472: } 5473: } 5474: } 5475: } 5476: } 5477: unless (ref($description) eq 'HASH') { 5478: if (ref($roles_by_num) eq 'ARRAY') { 5479: my %desc; 5480: map { $desc{$_} = $_; } (@{$roles_by_num}); 5481: $description = \%desc; 5482: } else { 5483: $description = {}; 5484: } 5485: } 5486: return (\@possroles,$description); 5487: } 5488: 5489: # ----------------------------------------------------- Frontpage Announcements 5490: # 5491: # 5492: 5493: sub postannounce { 5494: my ($server,$text)=@_; 5495: unless (&allowed('psa',&host_domain($server))) { return 'refused'; } 5496: unless ($text=~/\w/) { $text=''; } 5497: return &reply('setannounce:'.&escape($text),$server); 5498: } 5499: 5500: sub getannounce { 5501: 5502: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) { 5503: my $announcement=''; 5504: while (my $line = <$fh>) { $announcement .= $line; } 5505: close($fh); 5506: if ($announcement=~/\w/) { 5507: return 5508: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'. 5509: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>'; 5510: } else { 5511: return ''; 5512: } 5513: } else { 5514: return ''; 5515: } 5516: } 5517: 5518: # ---------------------------------------------------------- Course ID routines 5519: # Deal with domain's nohist_courseid.db files 5520: # 5521: 5522: sub courseidput { 5523: my ($domain,$storehash,$coursehome,$caller) = @_; 5524: return unless (ref($storehash) eq 'HASH'); 5525: my $outcome; 5526: if ($caller eq 'timeonly') { 5527: my $cids = ''; 5528: foreach my $item (keys(%$storehash)) { 5529: $cids.=&escape($item).'&'; 5530: } 5531: $cids=~s/\&$//; 5532: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids, 5533: $coursehome); 5534: } else { 5535: my $items = ''; 5536: foreach my $item (keys(%$storehash)) { 5537: $items.= &escape($item).'='. 5538: &freeze_escape($$storehash{$item}).'&'; 5539: } 5540: $items=~s/\&$//; 5541: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items, 5542: $coursehome); 5543: } 5544: if ($outcome eq 'unknown_cmd') { 5545: my $what; 5546: foreach my $cid (keys(%$storehash)) { 5547: $what .= &escape($cid).'='; 5548: foreach my $item ('description','inst_code','owner','type') { 5549: $what .= &escape($storehash->{$cid}{$item}).':'; 5550: } 5551: $what =~ s/\:$/&/; 5552: } 5553: $what =~ s/\&$//; 5554: return &reply('courseidput:'.$domain.':'.$what,$coursehome); 5555: } else { 5556: return $outcome; 5557: } 5558: } 5559: 5560: sub courseiddump { 5561: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter, 5562: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok, 5563: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone, 5564: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner, 5565: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_; 5566: my $as_hash = 1; 5567: my %returnhash; 5568: if (!$domfilter) { $domfilter=''; } 5569: my %libserv = &all_library(); 5570: foreach my $tryserver (keys(%libserv)) { 5571: if ( ( $hostidflag == 1 5572: && grep(/^\Q$tryserver\E$/,@{$hostidref}) ) 5573: || (!defined($hostidflag)) ) { 5574: 5575: if (($domfilter eq '') || 5576: (&host_domain($tryserver) eq $domfilter)) { 5577: my $rep; 5578: if (grep { $_ eq $tryserver } current_machine_ids()) { 5579: $rep = LONCAPA::Lond::dump_course_id_handler( 5580: join(":", (&host_domain($tryserver), $sincefilter, 5581: &escape($descfilter), &escape($instcodefilter), 5582: &escape($ownerfilter), &escape($coursefilter), 5583: &escape($typefilter), &escape($regexp_ok), 5584: $as_hash, &escape($selfenrollonly), 5585: &escape($catfilter), $showhidden, $caller, 5586: &escape($cloner), &escape($cc_clone), $cloneonly, 5587: &escape($createdbefore), &escape($createdafter), 5588: &escape($creationcontext),$domcloner,$hasuniquecode, 5589: $reqcrsdom,&escape($reqinstcode)))); 5590: } else { 5591: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'. 5592: $sincefilter.':'.&escape($descfilter).':'. 5593: &escape($instcodefilter).':'.&escape($ownerfilter). 5594: ':'.&escape($coursefilter).':'.&escape($typefilter). 5595: ':'.&escape($regexp_ok).':'.$as_hash.':'. 5596: &escape($selfenrollonly).':'.&escape($catfilter).':'. 5597: $showhidden.':'.$caller.':'.&escape($cloner).':'. 5598: &escape($cc_clone).':'.$cloneonly.':'. 5599: &escape($createdbefore).':'.&escape($createdafter).':'. 5600: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode. 5601: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver); 5602: } 5603: 5604: my @pairs=split(/\&/,$rep); 5605: foreach my $item (@pairs) { 5606: my ($key,$value)=split(/\=/,$item,2); 5607: $key = &unescape($key); 5608: next if ($key =~ /^error: 2 /); 5609: my $result = &thaw_unescape($value); 5610: if (ref($result) eq 'HASH') { 5611: $returnhash{$key}=$result; 5612: } else { 5613: my @responses = split(/:/,$value); 5614: my @items = ('description','inst_code','owner','type'); 5615: for (my $i=0; $i<@responses; $i++) { 5616: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]); 5617: } 5618: } 5619: } 5620: } 5621: } 5622: } 5623: return %returnhash; 5624: } 5625: 5626: sub courselastaccess { 5627: my ($cdom,$cnum,$hostidref) = @_; 5628: my %returnhash; 5629: if ($cdom && $cnum) { 5630: my $chome = &homeserver($cnum,$cdom); 5631: if ($chome ne 'no_host') { 5632: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome); 5633: &extract_lastaccess(\%returnhash,$rep); 5634: } 5635: } else { 5636: if (!$cdom) { $cdom=''; } 5637: my %libserv = &all_library(); 5638: foreach my $tryserver (keys(%libserv)) { 5639: if (ref($hostidref) eq 'ARRAY') { 5640: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref})); 5641: } 5642: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) { 5643: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver); 5644: &extract_lastaccess(\%returnhash,$rep); 5645: } 5646: } 5647: } 5648: return %returnhash; 5649: } 5650: 5651: sub extract_lastaccess { 5652: my ($returnhash,$rep) = @_; 5653: if (ref($returnhash) eq 'HASH') { 5654: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || 5655: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || 5656: $rep eq '') { 5657: my @pairs=split(/\&/,$rep); 5658: foreach my $item (@pairs) { 5659: my ($key,$value)=split(/\=/,$item,2); 5660: $key = &unescape($key); 5661: next if ($key =~ /^error: 2 /); 5662: $returnhash->{$key} = &thaw_unescape($value); 5663: } 5664: } 5665: } 5666: return; 5667: } 5668: 5669: # ---------------------------------------------------------- DC e-mail 5670: 5671: sub dcmailput { 5672: my ($domain,$msgid,$message,$server)=@_; 5673: my $status = &Apache::lonnet::critical( 5674: 'dcmailput:'.$domain.':'.&escape($msgid).'='. 5675: &escape($message),$server); 5676: return $status; 5677: } 5678: 5679: sub dcmaildump { 5680: my ($dom,$startdate,$enddate,$senders) = @_; 5681: my %returnhash=(); 5682: 5683: if (defined(&domain($dom,'primary'))) { 5684: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'. 5685: &escape($enddate).':'; 5686: my @esc_senders=map { &escape($_)} @$senders; 5687: $cmd.=&escape(join('&',@esc_senders)); 5688: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) { 5689: my ($key,$value) = split(/\=/,$line,2); 5690: if (($key) && ($value)) { 5691: $returnhash{&unescape($key)} = &unescape($value); 5692: } 5693: } 5694: } 5695: return %returnhash; 5696: } 5697: # ---------------------------------------------------------- Domain roles 5698: 5699: sub get_domain_roles { 5700: my ($dom,$roles,$startdate,$enddate)=@_; 5701: if ((!defined($startdate)) || ($startdate eq '')) { 5702: $startdate = '.'; 5703: } 5704: if ((!defined($enddate)) || ($enddate eq '')) { 5705: $enddate = '.'; 5706: } 5707: my $rolelist; 5708: if (ref($roles) eq 'ARRAY') { 5709: $rolelist = join('&',@{$roles}); 5710: } 5711: my %personnel = (); 5712: 5713: my %servers = &get_servers($dom,'library'); 5714: foreach my $tryserver (keys(%servers)) { 5715: %{$personnel{$tryserver}}=(); 5716: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'. 5717: &escape($startdate).':'. 5718: &escape($enddate).':'. 5719: &escape($rolelist), $tryserver))) { 5720: my ($key,$value) = split(/\=/,$line,2); 5721: if (($key) && ($value)) { 5722: $personnel{$tryserver}{&unescape($key)} = &unescape($value); 5723: } 5724: } 5725: } 5726: return %personnel; 5727: } 5728: 5729: sub get_active_domroles { 5730: my ($dom,$roles) = @_; 5731: return () unless (ref($roles) eq 'ARRAY'); 5732: my $now = time; 5733: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now); 5734: my %domroles; 5735: foreach my $server (keys(%dompersonnel)) { 5736: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) { 5737: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user); 5738: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user}; 5739: } 5740: } 5741: return %domroles; 5742: } 5743: 5744: # ----------------------------------------------------------- Interval timing 5745: 5746: { 5747: # Caches needed for speedup of navmaps 5748: # We don't want to cache this for very long at all (5 seconds at most) 5749: # 5750: # The user for whom we cache 5751: my $cachedkey=''; 5752: # The cached times for this user 5753: my %cachedtimes=(); 5754: # When this was last done 5755: my $cachedtime=''; 5756: 5757: sub load_all_first_access { 5758: my ($uname,$udom,$ignorecache)=@_; 5759: if (($cachedkey eq $uname.':'.$udom) && 5760: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) && 5761: (!$ignorecache)) { 5762: return; 5763: } 5764: $cachedtime=time; 5765: $cachedkey=$uname.':'.$udom; 5766: %cachedtimes=&dump('firstaccesstimes',$udom,$uname); 5767: } 5768: 5769: sub get_first_access { 5770: my ($type,$argsymb,$argmap,$ignorecache)=@_; 5771: my ($symb,$courseid,$udom,$uname)=&whichuser(); 5772: if ($argsymb) { $symb=$argsymb; } 5773: my ($map,$id,$res)=&decode_symb($symb); 5774: if ($argmap) { $map = $argmap; } 5775: if ($type eq 'course') { 5776: $res='course'; 5777: } elsif ($type eq 'map') { 5778: $res=&symbread($map); 5779: } else { 5780: $res=$symb; 5781: } 5782: &load_all_first_access($uname,$udom,$ignorecache); 5783: return $cachedtimes{"$courseid\0$res"}; 5784: } 5785: 5786: sub set_first_access { 5787: my ($type,$interval)=@_; 5788: my ($symb,$courseid,$udom,$uname)=&whichuser(); 5789: my ($map,$id,$res)=&decode_symb($symb); 5790: if ($type eq 'course') { 5791: $res='course'; 5792: } elsif ($type eq 'map') { 5793: $res=&symbread($map); 5794: } else { 5795: $res=$symb; 5796: } 5797: $cachedkey=''; 5798: my $firstaccess=&get_first_access($type,$symb,$map); 5799: if ($firstaccess) { 5800: &logthis("First access time already set ($firstaccess) when attempting ". 5801: "to set new value (type: $type, extent: $res) for $uname:$udom ". 5802: "in $courseid"); 5803: return 'already_set'; 5804: } else { 5805: my $start = time; 5806: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start}, 5807: $udom,$uname); 5808: if ($putres eq 'ok') { 5809: &put('timerinterval',{"$courseid\0$res"=>$interval}, 5810: $udom,$uname); 5811: &appenv( 5812: { 5813: 'course.'.$courseid.'.firstaccess.'.$res => $start, 5814: 'course.'.$courseid.'.timerinterval.'.$res => $interval, 5815: } 5816: ); 5817: if (($cachedtime) && (abs($start-$cachedtime) < 5)) { 5818: $cachedtimes{"$courseid\0$res"} = $start; 5819: } 5820: } elsif ($putres ne 'refused') { 5821: &logthis("Result: $putres when attempting to set first access time ". 5822: "(type: $type, extent: $res) for $uname:$udom in $courseid"); 5823: } 5824: return $putres; 5825: } 5826: return 'already_set'; 5827: } 5828: } 5829: 5830: # --------------------------------------------- Set Expire Date for Spreadsheet 5831: 5832: sub expirespread { 5833: my ($uname,$udom,$stype,$usymb)=@_; 5834: my $cid=$env{'request.course.id'}; 5835: if ($cid) { 5836: my $now=time; 5837: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb; 5838: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'. 5839: $env{'course.'.$cid.'.num'}. 5840: ':nohist_expirationdates:'. 5841: &escape($key).'='.$now, 5842: $env{'course.'.$cid.'.home'}) 5843: } 5844: return 'ok'; 5845: } 5846: 5847: # ----------------------------------------------------- Devalidate Spreadsheets 5848: 5849: sub devalidate { 5850: my ($symb,$uname,$udom)=@_; 5851: my $cid=$env{'request.course.id'}; 5852: if ($cid) { 5853: # delete the stored spreadsheets for 5854: # - the student level sheet of this user in course's homespace 5855: # - the assessment level sheet for this resource 5856: # for this user in user's homespace 5857: # - current conditional state info 5858: my $key=$uname.':'.$udom.':'; 5859: my $status= 5860: &del('nohist_calculatedsheets', 5861: [$key.'studentcalc:'], 5862: $env{'course.'.$cid.'.domain'}, 5863: $env{'course.'.$cid.'.num'}) 5864: .' '. 5865: &del('nohist_calculatedsheets_'.$cid, 5866: [$key.'assesscalc:'.$symb],$udom,$uname); 5867: unless ($status eq 'ok ok') { 5868: &logthis('Could not devalidate spreadsheet '. 5869: $uname.' at '.$udom.' for '. 5870: $symb.': '.$status); 5871: } 5872: &delenv('user.state.'.$cid); 5873: } 5874: } 5875: 5876: sub get_scalar { 5877: my ($string,$end) = @_; 5878: my $value; 5879: if ($$string =~ s/^([^&]*?)($end)/$2/) { 5880: $value = $1; 5881: } elsif ($$string =~ s/^([^&]*?)&//) { 5882: $value = $1; 5883: } 5884: return &unescape($value); 5885: } 5886: 5887: sub array2str { 5888: my (@array) = @_; 5889: my $result=&arrayref2str(\@array); 5890: $result=~s/^__ARRAY_REF__//; 5891: $result=~s/__END_ARRAY_REF__$//; 5892: return $result; 5893: } 5894: 5895: sub arrayref2str { 5896: my ($arrayref) = @_; 5897: my $result='__ARRAY_REF__'; 5898: foreach my $elem (@$arrayref) { 5899: if(ref($elem) eq 'ARRAY') { 5900: $result.=&arrayref2str($elem).'&'; 5901: } elsif(ref($elem) eq 'HASH') { 5902: $result.=&hashref2str($elem).'&'; 5903: } elsif(ref($elem)) { 5904: #print("Got a ref of ".(ref($elem))." skipping."); 5905: } else { 5906: $result.=&escape($elem).'&'; 5907: } 5908: } 5909: $result=~s/\&$//; 5910: $result .= '__END_ARRAY_REF__'; 5911: return $result; 5912: } 5913: 5914: sub hash2str { 5915: my (%hash) = @_; 5916: my $result=&hashref2str(\%hash); 5917: $result=~s/^__HASH_REF__//; 5918: $result=~s/__END_HASH_REF__$//; 5919: return $result; 5920: } 5921: 5922: sub hashref2str { 5923: my ($hashref)=@_; 5924: my $result='__HASH_REF__'; 5925: foreach my $key (sort(keys(%$hashref))) { 5926: if (ref($key) eq 'ARRAY') { 5927: $result.=&arrayref2str($key).'='; 5928: } elsif (ref($key) eq 'HASH') { 5929: $result.=&hashref2str($key).'='; 5930: } elsif (ref($key)) { 5931: $result.='='; 5932: #print("Got a ref of ".(ref($key))." skipping."); 5933: } else { 5934: if (defined($key)) {$result.=&escape($key).'=';} else { last; } 5935: } 5936: 5937: if(ref($hashref->{$key}) eq 'ARRAY') { 5938: $result.=&arrayref2str($hashref->{$key}).'&'; 5939: } elsif(ref($hashref->{$key}) eq 'HASH') { 5940: $result.=&hashref2str($hashref->{$key}).'&'; 5941: } elsif(ref($hashref->{$key})) { 5942: $result.='&'; 5943: #print("Got a ref of ".(ref($hashref->{$key}))." skipping."); 5944: } else { 5945: $result.=&escape($hashref->{$key}).'&'; 5946: } 5947: } 5948: $result=~s/\&$//; 5949: $result .= '__END_HASH_REF__'; 5950: return $result; 5951: } 5952: 5953: sub str2hash { 5954: my ($string)=@_; 5955: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__'); 5956: return %$hash; 5957: } 5958: 5959: sub str2hashref { 5960: my ($string) = @_; 5961: 5962: my %hash; 5963: 5964: if($string !~ /^__HASH_REF__/) { 5965: if (! ($string eq '' || !defined($string))) { 5966: $hash{'error'}='Not hash reference'; 5967: } 5968: return (\%hash, $string); 5969: } 5970: 5971: $string =~ s/^__HASH_REF__//; 5972: 5973: while($string !~ /^__END_HASH_REF__/) { 5974: #key 5975: my $key=''; 5976: if($string =~ /^__HASH_REF__/) { 5977: ($key, $string)=&str2hashref($string); 5978: if(defined($key->{'error'})) { 5979: $hash{'error'}='Bad data'; 5980: return (\%hash, $string); 5981: } 5982: } elsif($string =~ /^__ARRAY_REF__/) { 5983: ($key, $string)=&str2arrayref($string); 5984: if($key->[0] eq 'Array reference error') { 5985: $hash{'error'}='Bad data'; 5986: return (\%hash, $string); 5987: } 5988: } else { 5989: $string =~ s/^(.*?)=//; 5990: $key=&unescape($1); 5991: } 5992: $string =~ s/^=//; 5993: 5994: #value 5995: my $value=''; 5996: if($string =~ /^__HASH_REF__/) { 5997: ($value, $string)=&str2hashref($string); 5998: if(defined($value->{'error'})) { 5999: $hash{'error'}='Bad data'; 6000: return (\%hash, $string); 6001: } 6002: } elsif($string =~ /^__ARRAY_REF__/) { 6003: ($value, $string)=&str2arrayref($string); 6004: if($value->[0] eq 'Array reference error') { 6005: $hash{'error'}='Bad data'; 6006: return (\%hash, $string); 6007: } 6008: } else { 6009: $value=&get_scalar(\$string,'__END_HASH_REF__'); 6010: } 6011: $string =~ s/^&//; 6012: 6013: $hash{$key}=$value; 6014: } 6015: 6016: $string =~ s/^__END_HASH_REF__//; 6017: 6018: return (\%hash, $string); 6019: } 6020: 6021: sub str2array { 6022: my ($string)=@_; 6023: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__'); 6024: return @$array; 6025: } 6026: 6027: sub str2arrayref { 6028: my ($string) = @_; 6029: my @array; 6030: 6031: if($string !~ /^__ARRAY_REF__/) { 6032: if (! ($string eq '' || !defined($string))) { 6033: $array[0]='Array reference error'; 6034: } 6035: return (\@array, $string); 6036: } 6037: 6038: $string =~ s/^__ARRAY_REF__//; 6039: 6040: while($string !~ /^__END_ARRAY_REF__/) { 6041: my $value=''; 6042: if($string =~ /^__HASH_REF__/) { 6043: ($value, $string)=&str2hashref($string); 6044: if(defined($value->{'error'})) { 6045: $array[0] ='Array reference error'; 6046: return (\@array, $string); 6047: } 6048: } elsif($string =~ /^__ARRAY_REF__/) { 6049: ($value, $string)=&str2arrayref($string); 6050: if($value->[0] eq 'Array reference error') { 6051: $array[0] ='Array reference error'; 6052: return (\@array, $string); 6053: } 6054: } else { 6055: $value=&get_scalar(\$string,'__END_ARRAY_REF__'); 6056: } 6057: $string =~ s/^&//; 6058: 6059: push(@array, $value); 6060: } 6061: 6062: $string =~ s/^__END_ARRAY_REF__//; 6063: 6064: return (\@array, $string); 6065: } 6066: 6067: # -------------------------------------------------------------------Temp Store 6068: 6069: sub tmpreset { 6070: my ($symb,$namespace,$domain,$stuname) = @_; 6071: if (!$symb) { 6072: $symb=&symbread(); 6073: if (!$symb) { $symb= $env{'request.url'}; } 6074: } 6075: $symb=escape($symb); 6076: 6077: if (!$namespace) { $namespace=$env{'request.state'}; } 6078: $namespace=~s/\//\_/g; 6079: $namespace=~s/\W//g; 6080: 6081: if (!$domain) { $domain=$env{'user.domain'}; } 6082: if (!$stuname) { $stuname=$env{'user.name'}; } 6083: if ($domain eq 'public' && $stuname eq 'public') { 6084: $stuname=$ENV{'REMOTE_ADDR'}; 6085: } 6086: my $path=LONCAPA::tempdir(); 6087: my %hash; 6088: if (tie(%hash,'GDBM_File', 6089: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6090: &GDBM_WRCREAT(),0640)) { 6091: foreach my $key (keys(%hash)) { 6092: if ($key=~ /:$symb/) { 6093: delete($hash{$key}); 6094: } 6095: } 6096: } 6097: } 6098: 6099: sub tmpstore { 6100: my ($storehash,$symb,$namespace,$domain,$stuname) = @_; 6101: 6102: if (!$symb) { 6103: $symb=&symbread(); 6104: if (!$symb) { $symb= $env{'request.url'}; } 6105: } 6106: $symb=escape($symb); 6107: 6108: if (!$namespace) { 6109: # I don't think we would ever want to store this for a course. 6110: # it seems this will only be used if we don't have a course. 6111: #$namespace=$env{'request.course.id'}; 6112: #if (!$namespace) { 6113: $namespace=$env{'request.state'}; 6114: #} 6115: } 6116: $namespace=~s/\//\_/g; 6117: $namespace=~s/\W//g; 6118: if (!$domain) { $domain=$env{'user.domain'}; } 6119: if (!$stuname) { $stuname=$env{'user.name'}; } 6120: if ($domain eq 'public' && $stuname eq 'public') { 6121: $stuname=$ENV{'REMOTE_ADDR'}; 6122: } 6123: my $now=time; 6124: my %hash; 6125: my $path=LONCAPA::tempdir(); 6126: if (tie(%hash,'GDBM_File', 6127: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6128: &GDBM_WRCREAT(),0640)) { 6129: $hash{"version:$symb"}++; 6130: my $version=$hash{"version:$symb"}; 6131: my $allkeys=''; 6132: foreach my $key (keys(%$storehash)) { 6133: $allkeys.=$key.':'; 6134: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key}); 6135: } 6136: $hash{"$version:$symb:timestamp"}=$now; 6137: $allkeys.='timestamp'; 6138: $hash{"$version:keys:$symb"}=$allkeys; 6139: if (untie(%hash)) { 6140: return 'ok'; 6141: } else { 6142: return "error:$!"; 6143: } 6144: } else { 6145: return "error:$!"; 6146: } 6147: } 6148: 6149: # -----------------------------------------------------------------Temp Restore 6150: 6151: sub tmprestore { 6152: my ($symb,$namespace,$domain,$stuname) = @_; 6153: 6154: if (!$symb) { 6155: $symb=&symbread(); 6156: if (!$symb) { $symb= $env{'request.url'}; } 6157: } 6158: $symb=escape($symb); 6159: 6160: if (!$namespace) { $namespace=$env{'request.state'}; } 6161: 6162: if (!$domain) { $domain=$env{'user.domain'}; } 6163: if (!$stuname) { $stuname=$env{'user.name'}; } 6164: if ($domain eq 'public' && $stuname eq 'public') { 6165: $stuname=$ENV{'REMOTE_ADDR'}; 6166: } 6167: my %returnhash; 6168: $namespace=~s/\//\_/g; 6169: $namespace=~s/\W//g; 6170: my %hash; 6171: my $path=LONCAPA::tempdir(); 6172: if (tie(%hash,'GDBM_File', 6173: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', 6174: &GDBM_READER(),0640)) { 6175: my $version=$hash{"version:$symb"}; 6176: $returnhash{'version'}=$version; 6177: my $scope; 6178: for ($scope=1;$scope<=$version;$scope++) { 6179: my $vkeys=$hash{"$scope:keys:$symb"}; 6180: my @keys=split(/:/,$vkeys); 6181: my $key; 6182: $returnhash{"$scope:keys"}=$vkeys; 6183: foreach $key (@keys) { 6184: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); 6185: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); 6186: } 6187: } 6188: if (!(untie(%hash))) { 6189: return "error:$!"; 6190: } 6191: } else { 6192: return "error:$!"; 6193: } 6194: return %returnhash; 6195: } 6196: 6197: # ----------------------------------------------------------------------- Store 6198: 6199: sub store { 6200: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; 6201: my $home=''; 6202: 6203: if ($stuname) { $home=&homeserver($stuname,$domain); } 6204: 6205: $symb=&symbclean($symb); 6206: if (!$symb) { unless ($symb=&symbread()) { return ''; } } 6207: 6208: if (!$domain) { $domain=$env{'user.domain'}; } 6209: if (!$stuname) { $stuname=$env{'user.name'}; } 6210: 6211: &devalidate($symb,$stuname,$domain); 6212: 6213: $symb=escape($symb); 6214: if (!$namespace) { 6215: unless ($namespace=$env{'request.course.id'}) { 6216: return ''; 6217: } 6218: } 6219: if (!$home) { $home=$env{'user.home'}; } 6220: 6221: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'}; 6222: $$storehash{'host'}=$perlvar{'lonHostID'}; 6223: 6224: my $namevalue=''; 6225: foreach my $key (keys(%$storehash)) { 6226: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 6227: } 6228: $namevalue=~s/\&$//; 6229: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue); 6230: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); 6231: } 6232: 6233: # -------------------------------------------------------------- Critical Store 6234: 6235: sub cstore { 6236: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; 6237: my $home=''; 6238: 6239: if ($stuname) { $home=&homeserver($stuname,$domain); } 6240: 6241: $symb=&symbclean($symb); 6242: if (!$symb) { unless ($symb=&symbread()) { return ''; } } 6243: 6244: if (!$domain) { $domain=$env{'user.domain'}; } 6245: if (!$stuname) { $stuname=$env{'user.name'}; } 6246: 6247: &devalidate($symb,$stuname,$domain); 6248: 6249: $symb=escape($symb); 6250: if (!$namespace) { 6251: unless ($namespace=$env{'request.course.id'}) { 6252: return ''; 6253: } 6254: } 6255: if (!$home) { $home=$env{'user.home'}; } 6256: 6257: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'}; 6258: $$storehash{'host'}=$perlvar{'lonHostID'}; 6259: 6260: my $namevalue=''; 6261: foreach my $key (keys(%$storehash)) { 6262: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 6263: } 6264: $namevalue=~s/\&$//; 6265: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue); 6266: return critical 6267: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); 6268: } 6269: 6270: # --------------------------------------------------------------------- Restore 6271: 6272: sub restore { 6273: my ($symb,$namespace,$domain,$stuname) = @_; 6274: my $home=''; 6275: 6276: if ($stuname) { $home=&homeserver($stuname,$domain); } 6277: 6278: if (!$symb) { 6279: return if ($namespace eq 'courserequests'); 6280: unless ($symb=escape(&symbread())) { return ''; } 6281: } else { 6282: unless ($namespace eq 'courserequests') { 6283: $symb=&escape(&symbclean($symb)); 6284: } 6285: } 6286: if (!$namespace) { 6287: unless ($namespace=$env{'request.course.id'}) { 6288: return ''; 6289: } 6290: } 6291: if (!$domain) { $domain=$env{'user.domain'}; } 6292: if (!$stuname) { $stuname=$env{'user.name'}; } 6293: if (!$home) { $home=$env{'user.home'}; } 6294: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home"); 6295: 6296: my %returnhash=(); 6297: foreach my $line (split(/\&/,$answer)) { 6298: my ($name,$value)=split(/\=/,$line); 6299: $returnhash{&unescape($name)}=&thaw_unescape($value); 6300: } 6301: my $version; 6302: for ($version=1;$version<=$returnhash{'version'};$version++) { 6303: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) { 6304: $returnhash{$item}=$returnhash{$version.':'.$item}; 6305: } 6306: } 6307: return %returnhash; 6308: } 6309: 6310: # ---------------------------------------------------------- Course Description 6311: # 6312: # 6313: 6314: sub coursedescription { 6315: my ($courseid,$args)=@_; 6316: $courseid=~s/^\///; 6317: $courseid=~s/\_/\//g; 6318: my ($cdomain,$cnum)=split(/\//,$courseid); 6319: my $chome=&homeserver($cnum,$cdomain); 6320: my $normalid=$cdomain.'_'.$cnum; 6321: # need to always cache even if we get errors otherwise we keep 6322: # trying and trying and trying to get the course description. 6323: my %envhash=(); 6324: my %returnhash=(); 6325: 6326: my $expiretime=600; 6327: if ($env{'request.course.id'} eq $normalid) { 6328: $expiretime=120; 6329: } 6330: 6331: my $prefix='course.'.$cdomain.'_'.$cnum.'.'; 6332: if (!$args->{'freshen_cache'} 6333: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) { 6334: foreach my $key (keys(%env)) { 6335: next if ($key !~ /^\Q$prefix\E(.*)/); 6336: my ($setting) = $1; 6337: $returnhash{$setting} = $env{$key}; 6338: } 6339: return %returnhash; 6340: } 6341: 6342: # get the data again 6343: 6344: if (!$args->{'one_time'}) { 6345: $envhash{'course.'.$normalid.'.last_cache'}=time; 6346: } 6347: 6348: if ($chome ne 'no_host') { 6349: %returnhash=&dump('environment',$cdomain,$cnum); 6350: if (!exists($returnhash{'con_lost'})) { 6351: my $username = $env{'user.name'}; # Defult username 6352: if(defined $args->{'user'}) { 6353: $username = $args->{'user'}; 6354: } 6355: $returnhash{'home'}= $chome; 6356: $returnhash{'domain'} = $cdomain; 6357: $returnhash{'num'} = $cnum; 6358: if (!defined($returnhash{'type'})) { 6359: $returnhash{'type'} = 'Course'; 6360: } 6361: while (my ($name,$value) = each %returnhash) { 6362: $envhash{'course.'.$normalid.'.'.$name}=$value; 6363: } 6364: $returnhash{'url'}=&clutter($returnhash{'url'}); 6365: $returnhash{'fn'}=LONCAPA::tempdir() . 6366: $username.'_'.$cdomain.'_'.$cnum; 6367: $envhash{'course.'.$normalid.'.home'}=$chome; 6368: $envhash{'course.'.$normalid.'.domain'}=$cdomain; 6369: $envhash{'course.'.$normalid.'.num'}=$cnum; 6370: } 6371: } 6372: if (!$args->{'one_time'}) { 6373: &appenv(\%envhash); 6374: } 6375: return %returnhash; 6376: } 6377: 6378: sub update_released_required { 6379: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_; 6380: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') { 6381: $cid = $env{'request.course.id'}; 6382: $cdom = $env{'course.'.$cid.'.domain'}; 6383: $cnum = $env{'course.'.$cid.'.num'}; 6384: $chome = $env{'course.'.$cid.'.home'}; 6385: } 6386: if ($needsrelease) { 6387: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired'); 6388: my $needsupdate; 6389: if ($curr_reqd_hash{'internal.releaserequired'} eq '') { 6390: $needsupdate = 1; 6391: } else { 6392: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'}); 6393: my ($needsmajor,$needsminor) = split(/\./,$needsrelease); 6394: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) { 6395: $needsupdate = 1; 6396: } 6397: } 6398: if ($needsupdate) { 6399: my %needshash = ( 6400: 'internal.releaserequired' => $needsrelease, 6401: ); 6402: my $putresult = &put('environment',\%needshash,$cdom,$cnum); 6403: if ($putresult eq 'ok') { 6404: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease}); 6405: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); 6406: if (ref($crsinfo{$cid}) eq 'HASH') { 6407: $crsinfo{$cid}{'releaserequired'} = $needsrelease; 6408: &courseidput($cdom,\%crsinfo,$chome,'notime'); 6409: } 6410: } 6411: } 6412: } 6413: return; 6414: } 6415: 6416: # -------------------------------------------------See if a user is privileged 6417: 6418: sub privileged { 6419: my ($username,$domain,$possdomains,$possroles)=@_; 6420: my $now = time; 6421: my $roles; 6422: if (ref($possroles) eq 'ARRAY') { 6423: $roles = $possroles; 6424: } else { 6425: $roles = ['dc','su']; 6426: } 6427: if (ref($possdomains) eq 'ARRAY') { 6428: my %privileged = &privileged_by_domain($possdomains,$roles); 6429: foreach my $dom (@{$possdomains}) { 6430: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) && 6431: (ref($privileged{$dom}) eq 'HASH')) { 6432: foreach my $role (@{$roles}) { 6433: if (ref($privileged{$dom}{$role}) eq 'HASH') { 6434: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) { 6435: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain}); 6436: return 1 unless (($end && $end < $now) || 6437: ($start && $start > $now)); 6438: } 6439: } 6440: } 6441: } 6442: } 6443: } else { 6444: my %rolesdump = &dump("roles", $domain, $username) or return 0; 6445: my $now = time; 6446: 6447: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) { 6448: my ($trole, $tend, $tstart) = split(/_/, $role); 6449: if (grep(/^\Q$trole\E$/,@{$roles})) { 6450: return 1 unless ($tend && $tend < $now) 6451: or ($tstart && $tstart > $now); 6452: } 6453: } 6454: } 6455: return 0; 6456: } 6457: 6458: sub privileged_by_domain { 6459: my ($domains,$roles) = @_; 6460: my %privileged = (); 6461: my $cachetime = 60*60*24; 6462: my $now = time; 6463: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) { 6464: return %privileged; 6465: } 6466: foreach my $dom (@{$domains}) { 6467: next if (ref($privileged{$dom}) eq 'HASH'); 6468: my $needroles; 6469: foreach my $role (@{$roles}) { 6470: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom); 6471: if (defined($cached)) { 6472: if (ref($result) eq 'HASH') { 6473: $privileged{$dom}{$role} = $result; 6474: } 6475: } else { 6476: $needroles = 1; 6477: } 6478: } 6479: if ($needroles) { 6480: my %dompersonnel = &get_domain_roles($dom,$roles); 6481: $privileged{$dom} = {}; 6482: foreach my $server (keys(%dompersonnel)) { 6483: if (ref($dompersonnel{$server}) eq 'HASH') { 6484: foreach my $item (keys(%{$dompersonnel{$server}})) { 6485: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4); 6486: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item}); 6487: next if ($end && $end < $now); 6488: $privileged{$dom}{$trole}{$uname.':'.$udom} = 6489: $dompersonnel{$server}{$item}; 6490: } 6491: } 6492: } 6493: if (ref($privileged{$dom}) eq 'HASH') { 6494: foreach my $role (@{$roles}) { 6495: if (ref($privileged{$dom}{$role}) eq 'HASH') { 6496: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime); 6497: } else { 6498: my %hash = (); 6499: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime); 6500: } 6501: } 6502: } 6503: } 6504: } 6505: return %privileged; 6506: } 6507: 6508: # -------------------------------------------------------- Get user privileges 6509: 6510: sub rolesinit { 6511: my ($domain, $username) = @_; 6512: my %userroles = ('user.login.time' => time); 6513: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles; 6514: 6515: # firstaccess and timerinterval are related to timed maps/resources. 6516: # also, blocking can be triggered by an activating timer 6517: # it's saved in the user's %env. 6518: my %firstaccess = &dump('firstaccesstimes', $domain, $username); 6519: my %timerinterval = &dump('timerinterval', $domain, $username); 6520: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals, 6521: %timerintchk, %timerintenv); 6522: 6523: foreach my $key (keys(%firstaccess)) { 6524: my ($cid, $rest) = split(/\0/, $key); 6525: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key}; 6526: } 6527: 6528: foreach my $key (keys(%timerinterval)) { 6529: my ($cid,$rest) = split(/\0/,$key); 6530: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key}; 6531: } 6532: 6533: my %allroles=(); 6534: my %allgroups=(); 6535: 6536: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) { 6537: my $role = $rolesdump{$area}; 6538: $area =~ s/\_\w\w$//; 6539: 6540: my ($trole, $tend, $tstart, $group_privs); 6541: 6542: if ($role =~ /^cr/) { 6543: # Custom role, defined by a user 6544: # e.g., user.role.cr/msu/smith/mynewrole 6545: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) { 6546: $trole = $1; 6547: ($tend, $tstart) = split('_', $2); 6548: } else { 6549: $trole = $role; 6550: } 6551: } elsif ($role =~ m|^gr/|) { 6552: # Role of member in a group, defined within a course/community 6553: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards 6554: ($trole, $tend, $tstart) = split(/_/, $role); 6555: next if $tstart eq '-1'; 6556: ($trole, $group_privs) = split(/\//, $trole); 6557: $group_privs = &unescape($group_privs); 6558: } else { 6559: # Just a normal role, defined in roles.tab 6560: ($trole, $tend, $tstart) = split(/_/,$role); 6561: } 6562: 6563: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain, 6564: $username); 6565: @userroles{keys(%new_role)} = @new_role{keys(%new_role)}; 6566: 6567: # role expired or not available yet? 6568: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or 6569: ($tstart != 0 && $tstart > $userroles{'user.login.time'}); 6570: 6571: next if $area eq '' or $trole eq ''; 6572: 6573: my $spec = "$trole.$area"; 6574: my ($tdummy, $tdomain, $trest) = split(/\//, $area); 6575: 6576: if ($trole =~ /^cr\//) { 6577: # Custom role, defined by a user 6578: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); 6579: } elsif ($trole eq 'gr') { 6580: # Role of a member in a group, defined within a course/community 6581: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart); 6582: next; 6583: } else { 6584: # Normal role, defined in roles.tab 6585: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); 6586: } 6587: 6588: my $cid = $tdomain.'_'.$trest; 6589: unless ($firstaccchk{$cid}) { 6590: if (ref($coursetimerstarts{$cid}) eq 'HASH') { 6591: foreach my $item (keys(%{$coursetimerstarts{$cid}})) { 6592: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} = 6593: $coursetimerstarts{$cid}{$item}; 6594: } 6595: } 6596: $firstaccchk{$cid} = 1; 6597: } 6598: unless ($timerintchk{$cid}) { 6599: if (ref($coursetimerintervals{$cid}) eq 'HASH') { 6600: foreach my $item (keys(%{$coursetimerintervals{$cid}})) { 6601: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} = 6602: $coursetimerintervals{$cid}{$item}; 6603: } 6604: } 6605: $timerintchk{$cid} = 1; 6606: } 6607: } 6608: 6609: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles, 6610: \%allroles, \%allgroups); 6611: $env{'user.adv'} = $userroles{'user.adv'}; 6612: $env{'user.rar'} = $userroles{'user.rar'}; 6613: 6614: return (\%userroles,\%firstaccenv,\%timerintenv); 6615: } 6616: 6617: sub set_arearole { 6618: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_; 6619: unless ($nolog) { 6620: # log the associated role with the area 6621: &userrolelog($trole,$username,$domain,$area,$tstart,$tend); 6622: } 6623: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend); 6624: } 6625: 6626: sub custom_roleprivs { 6627: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_; 6628: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole); 6629: my $homsvr = &homeserver($rauthor,$rdomain); 6630: if (&hostname($homsvr) ne '') { 6631: my ($rdummy,$roledef)= 6632: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor); 6633: if (($rdummy ne 'con_lost') && ($roledef ne '')) { 6634: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef); 6635: if (defined($syspriv)) { 6636: if ($trest =~ /^$match_community$/) { 6637: $syspriv =~ s/bre\&S//; 6638: } 6639: $$allroles{'cm./'}.=':'.$syspriv; 6640: $$allroles{$spec.'./'}.=':'.$syspriv; 6641: } 6642: if ($tdomain ne '') { 6643: if (defined($dompriv)) { 6644: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv; 6645: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv; 6646: } 6647: if (($trest ne '') && (defined($coursepriv))) { 6648: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) { 6649: my $rolename = $1; 6650: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv); 6651: } 6652: $$allroles{'cm.'.$area}.=':'.$coursepriv; 6653: $$allroles{$spec.'.'.$area}.=':'.$coursepriv; 6654: } 6655: } 6656: } 6657: } 6658: } 6659: 6660: sub course_adhocrole_privs { 6661: my ($rolename,$cdom,$cnum,$coursepriv) = @_; 6662: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum); 6663: if ($overrides{"internal.adhocpriv.$rolename"}) { 6664: my (%currprivs,%storeprivs); 6665: foreach my $item (split(/:/,$coursepriv)) { 6666: my ($priv,$restrict) = split(/\&/,$item); 6667: $currprivs{$priv} = $restrict; 6668: } 6669: my (%possadd,%possremove,%full); 6670: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) { 6671: my ($priv,$restrict)=split(/\&/,$item); 6672: $full{$priv} = $restrict; 6673: } 6674: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) { 6675: next if ($item eq ''); 6676: my ($rule,$rest) = split(/=/,$item); 6677: next unless (($rule eq 'off') || ($rule eq 'on')); 6678: foreach my $priv (split(/:/,$rest)) { 6679: if ($priv ne '') { 6680: if ($rule eq 'off') { 6681: $possremove{$priv} = 1; 6682: } else { 6683: $possadd{$priv} = 1; 6684: } 6685: } 6686: } 6687: } 6688: foreach my $priv (sort(keys(%full))) { 6689: if (exists($currprivs{$priv})) { 6690: unless (exists($possremove{$priv})) { 6691: $storeprivs{$priv} = $currprivs{$priv}; 6692: } 6693: } elsif (exists($possadd{$priv})) { 6694: $storeprivs{$priv} = $full{$priv}; 6695: } 6696: } 6697: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs))); 6698: } 6699: return $coursepriv; 6700: } 6701: 6702: sub group_roleprivs { 6703: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_; 6704: my $access = 1; 6705: my $now = time; 6706: if (($tend!=0) && ($tend<$now)) { $access = 0; } 6707: if (($tstart!=0) && ($tstart>$now)) { $access=0; } 6708: if ($access) { 6709: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|); 6710: $$allgroups{$course}{$group} .=':'.$group_privs; 6711: } 6712: } 6713: 6714: sub standard_roleprivs { 6715: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_; 6716: if (defined($pr{$trole.':s'})) { 6717: $$allroles{'cm./'}.=':'.$pr{$trole.':s'}; 6718: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'}; 6719: } 6720: if ($tdomain ne '') { 6721: if (defined($pr{$trole.':d'})) { 6722: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; 6723: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; 6724: } 6725: if (($trest ne '') && (defined($pr{$trole.':c'}))) { 6726: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'}; 6727: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'}; 6728: } 6729: } 6730: } 6731: 6732: sub set_userprivs { 6733: my ($userroles,$allroles,$allgroups,$groups_roles) = @_; 6734: my $author=0; 6735: my $adv=0; 6736: my $rar=0; 6737: my %grouproles = (); 6738: if (keys(%{$allgroups}) > 0) { 6739: my @groupkeys; 6740: foreach my $role (keys(%{$allroles})) { 6741: push(@groupkeys,$role); 6742: } 6743: if (ref($groups_roles) eq 'HASH') { 6744: foreach my $key (keys(%{$groups_roles})) { 6745: unless (grep(/^\Q$key\E$/,@groupkeys)) { 6746: push(@groupkeys,$key); 6747: } 6748: } 6749: } 6750: if (@groupkeys > 0) { 6751: foreach my $role (@groupkeys) { 6752: my ($trole,$area,$sec,$extendedarea); 6753: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) { 6754: $trole = $1; 6755: $area = $2; 6756: $sec = $3; 6757: $extendedarea = $area.$sec; 6758: if (exists($$allgroups{$area})) { 6759: foreach my $group (keys(%{$$allgroups{$area}})) { 6760: my $spec = $trole.'.'.$extendedarea; 6761: $grouproles{$spec.'.'.$area.'/'.$group} = 6762: $$allgroups{$area}{$group}; 6763: } 6764: } 6765: } 6766: } 6767: } 6768: } 6769: foreach my $group (keys(%grouproles)) { 6770: $$allroles{$group} = $grouproles{$group}; 6771: } 6772: foreach my $role (keys(%{$allroles})) { 6773: my %thesepriv; 6774: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; } 6775: foreach my $item (split(/:/,$$allroles{$role})) { 6776: if ($item ne '') { 6777: my ($privilege,$restrictions)=split(/&/,$item); 6778: if ($restrictions eq '') { 6779: $thesepriv{$privilege}='F'; 6780: } elsif ($thesepriv{$privilege} ne 'F') { 6781: $thesepriv{$privilege}.=$restrictions; 6782: } 6783: if ($thesepriv{'adv'} eq 'F') { $adv=1; } 6784: if ($thesepriv{'rar'} eq 'F') { $rar=1; } 6785: } 6786: } 6787: my $thesestr=''; 6788: foreach my $priv (sort(keys(%thesepriv))) { 6789: $thesestr.=':'.$priv.'&'.$thesepriv{$priv}; 6790: } 6791: $userroles->{'user.priv.'.$role} = $thesestr; 6792: } 6793: return ($author,$adv,$rar); 6794: } 6795: 6796: sub role_status { 6797: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_; 6798: if (exists($env{$rolekey}) && $env{$rolekey} ne '') { 6799: my ($one,$two) = split(m{\./},$rolekey,2); 6800: (undef,undef,$$role) = split(/\./,$one,3); 6801: unless (!defined($$role) || $$role eq '') { 6802: $$where = '/'.$two; 6803: $$trolecode=$$role.'.'.$$where; 6804: ($$tstart,$$tend)=split(/\./,$env{$rolekey}); 6805: $$tstatus='is'; 6806: if ($$tstart && $$tstart>$update) { 6807: $$tstatus='future'; 6808: if ($$tstart<$now) { 6809: if ($$tstart && $$tstart>$refresh) { 6810: if (($$where ne '') && ($$role ne '')) { 6811: my (%allroles,%allgroups,$group_privs, 6812: %groups_roles,@rolecodes); 6813: my %userroles = ( 6814: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend 6815: ); 6816: @rolecodes = ('cm'); 6817: my $spec=$$role.'.'.$$where; 6818: my ($tdummy,$tdomain,$trest)=split(/\//,$$where); 6819: if ($$role =~ /^cr\//) { 6820: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where); 6821: push(@rolecodes,'cr'); 6822: } elsif ($$role eq 'gr') { 6823: push(@rolecodes,$$role); 6824: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'}, 6825: $env{'user.name'}); 6826: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2); 6827: (undef,my $group_privs) = split(/\//,$trole); 6828: $group_privs = &unescape($group_privs); 6829: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart); 6830: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1); 6831: &get_groups_roles($tdomain,$trest, 6832: \%course_roles,\@rolecodes, 6833: \%groups_roles); 6834: } else { 6835: push(@rolecodes,$$role); 6836: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where); 6837: } 6838: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups, 6839: \%groups_roles); 6840: &appenv(\%userroles,\@rolecodes); 6841: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); 6842: } 6843: } 6844: $$tstatus = 'is'; 6845: } 6846: } 6847: if ($$tend) { 6848: if ($$tend<$update) { 6849: $$tstatus='expired'; 6850: } elsif ($$tend<$now) { 6851: $$tstatus='will_not'; 6852: } 6853: } 6854: } 6855: } 6856: } 6857: 6858: sub get_groups_roles { 6859: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_; 6860: return unless((ref($cdom_courseroles) eq 'HASH') && 6861: (ref($rolecodes) eq 'ARRAY') && 6862: (ref($groups_roles) eq 'HASH')); 6863: if (keys(%{$cdom_courseroles}) > 0) { 6864: my ($cnum) = ($rest =~ /^($match_courseid)/); 6865: if ($cdom ne '' && $cnum ne '') { 6866: foreach my $key (keys(%{$cdom_courseroles})) { 6867: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) { 6868: my $crsrole = $1; 6869: my $crssec = $2; 6870: if ($crsrole =~ /^cr/) { 6871: unless (grep(/^cr$/,@{$rolecodes})) { 6872: push(@{$rolecodes},'cr'); 6873: } 6874: } else { 6875: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) { 6876: push(@{$rolecodes},$crsrole); 6877: } 6878: } 6879: my $rolekey = "$crsrole./$cdom/$cnum"; 6880: if ($crssec ne '') { 6881: $rolekey .= "/$crssec"; 6882: } 6883: $rolekey .= './'; 6884: $groups_roles->{$rolekey} = $rolecodes; 6885: } 6886: } 6887: } 6888: } 6889: return; 6890: } 6891: 6892: sub delete_env_groupprivs { 6893: my ($where,$courseroles,$possroles) = @_; 6894: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY')); 6895: my ($dummy,$udom,$uname,$group) = split(/\//,$where); 6896: unless (ref($courseroles->{$udom}) eq 'HASH') { 6897: %{$courseroles->{$udom}} = 6898: &get_my_roles('','','userroles',['active'], 6899: $possroles,[$udom],1); 6900: } 6901: if (ref($courseroles->{$udom}) eq 'HASH') { 6902: foreach my $item (keys(%{$courseroles->{$udom}})) { 6903: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item); 6904: my $area = '/'.$cdom.'/'.$cnum; 6905: my $privkey = "user.priv.$crsrole.$area"; 6906: if ($crssec ne '') { 6907: $privkey .= '/'.$crssec; 6908: } 6909: $privkey .= ".$area/$group"; 6910: &Apache::lonnet::delenv($privkey,undef,[$crsrole]); 6911: } 6912: } 6913: return; 6914: } 6915: 6916: sub check_adhoc_privs { 6917: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_; 6918: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum; 6919: if ($sec) { 6920: $cckey .= '/'.$sec; 6921: } 6922: my $setprivs; 6923: if ($env{$cckey}) { 6924: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend); 6925: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend); 6926: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) { 6927: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); 6928: $setprivs = 1; 6929: } 6930: } else { 6931: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); 6932: $setprivs = 1; 6933: } 6934: return $setprivs; 6935: } 6936: 6937: sub set_adhoc_privileges { 6938: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role 6939: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_; 6940: my $area = '/'.$dcdom.'/'.$pickedcourse; 6941: if ($sec ne '') { 6942: $area .= '/'.$sec; 6943: } 6944: my $spec = $role.'.'.$area; 6945: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'}, 6946: $env{'user.name'},1); 6947: my %rolehash = (); 6948: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) { 6949: my $rolename = $1; 6950: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area); 6951: my %domdef = &get_domain_defaults($dcdom); 6952: if (ref($domdef{'adhocroles'}) eq 'HASH') { 6953: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') { 6954: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},}); 6955: } 6956: } 6957: } else { 6958: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area); 6959: } 6960: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash); 6961: &appenv(\%userroles,[$role,'cm']); 6962: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); 6963: unless (($caller eq 'constructaccess' && $env{'request.course.id'}) || 6964: ($caller eq 'tiny')) { 6965: &appenv( {'request.role' => $spec, 6966: 'request.role.domain' => $dcdom, 6967: 'request.course.sec' => $sec, 6968: } 6969: ); 6970: my $tadv=0; 6971: if (&allowed('adv') eq 'F') { $tadv=1; } 6972: &appenv({'request.role.adv' => $tadv}); 6973: } 6974: } 6975: 6976: # --------------------------------------------------------------- get interface 6977: 6978: sub get { 6979: my ($namespace,$storearr,$udomain,$uname)=@_; 6980: my $items=''; 6981: foreach my $item (@$storearr) { 6982: $items.=&escape($item).'&'; 6983: } 6984: $items=~s/\&$//; 6985: if (!$udomain) { $udomain=$env{'user.domain'}; } 6986: if (!$uname) { $uname=$env{'user.name'}; } 6987: my $uhome=&homeserver($uname,$udomain); 6988: 6989: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome); 6990: my @pairs=split(/\&/,$rep); 6991: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) { 6992: return @pairs; 6993: } 6994: my %returnhash=(); 6995: my $i=0; 6996: foreach my $item (@$storearr) { 6997: $returnhash{$item}=&thaw_unescape($pairs[$i]); 6998: $i++; 6999: } 7000: return %returnhash; 7001: } 7002: 7003: # --------------------------------------------------------------- del interface 7004: 7005: sub del { 7006: my ($namespace,$storearr,$udomain,$uname)=@_; 7007: my $items=''; 7008: foreach my $item (@$storearr) { 7009: $items.=&escape($item).'&'; 7010: } 7011: 7012: $items=~s/\&$//; 7013: if (!$udomain) { $udomain=$env{'user.domain'}; } 7014: if (!$uname) { $uname=$env{'user.name'}; } 7015: my $uhome=&homeserver($uname,$udomain); 7016: return &reply("del:$udomain:$uname:$namespace:$items",$uhome); 7017: } 7018: 7019: # -------------------------------------------------------------- dump interface 7020: 7021: sub unserialize { 7022: my ($rep, $escapedkeys) = @_; 7023: 7024: return {} if $rep =~ /^error/; 7025: 7026: my %returnhash=(); 7027: foreach my $item (split(/\&/,$rep)) { 7028: my ($key, $value) = split(/=/, $item, 2); 7029: $key = unescape($key) unless $escapedkeys; 7030: next if $key =~ /^error: 2 /; 7031: $returnhash{$key} = &thaw_unescape($value); 7032: } 7033: #return %returnhash; 7034: return \%returnhash; 7035: } 7036: 7037: # see Lond::dump_with_regexp 7038: # if $escapedkeys hash keys won't get unescaped. 7039: sub dump { 7040: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_; 7041: if (!$udomain) { $udomain=$env{'user.domain'}; } 7042: if (!$uname) { $uname=$env{'user.name'}; } 7043: my $uhome=&homeserver($uname,$udomain); 7044: 7045: if ($regexp) { 7046: $regexp=&escape($regexp); 7047: } else { 7048: $regexp='.'; 7049: } 7050: if (grep { $_ eq $uhome } current_machine_ids()) { 7051: # user is hosted on this machine 7052: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain, 7053: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'}); 7054: return %{unserialize($reply, $escapedkeys)}; 7055: } 7056: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome); 7057: my @pairs=split(/\&/,$rep); 7058: my %returnhash=(); 7059: if (!($rep =~ /^error/ )) { 7060: foreach my $item (@pairs) { 7061: my ($key,$value)=split(/=/,$item,2); 7062: $key = unescape($key) unless $escapedkeys; 7063: #$key = &unescape($key); 7064: next if ($key =~ /^error: 2 /); 7065: $returnhash{$key}=&thaw_unescape($value); 7066: } 7067: } 7068: return %returnhash; 7069: } 7070: 7071: 7072: # --------------------------------------------------------- dumpstore interface 7073: 7074: sub dumpstore { 7075: my ($namespace,$udomain,$uname,$regexp,$range)=@_; 7076: # same as dump but keys must be escaped. They may contain colon separated 7077: # lists of values that may themself contain colons (e.g. symbs). 7078: return &dump($namespace, $udomain, $uname, $regexp, $range, 1); 7079: } 7080: 7081: # -------------------------------------------------------------- keys interface 7082: 7083: sub getkeys { 7084: my ($namespace,$udomain,$uname)=@_; 7085: if (!$udomain) { $udomain=$env{'user.domain'}; } 7086: if (!$uname) { $uname=$env{'user.name'}; } 7087: my $uhome=&homeserver($uname,$udomain); 7088: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome); 7089: my @keyarray=(); 7090: foreach my $key (split(/\&/,$rep)) { 7091: next if ($key =~ /^error: 2 /); 7092: push(@keyarray,&unescape($key)); 7093: } 7094: return @keyarray; 7095: } 7096: 7097: # --------------------------------------------------------------- currentdump 7098: sub currentdump { 7099: my ($courseid,$sdom,$sname)=@_; 7100: $courseid = $env{'request.course.id'} if (! defined($courseid)); 7101: $sdom = $env{'user.domain'} if (! defined($sdom)); 7102: $sname = $env{'user.name'} if (! defined($sname)); 7103: my $uhome = &homeserver($sname,$sdom); 7104: my $rep; 7105: 7106: if (grep { $_ eq $uhome } current_machine_ids()) { 7107: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname, 7108: $courseid))); 7109: } else { 7110: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome); 7111: } 7112: 7113: return if ($rep =~ /^(error:|no_such_host)/); 7114: # 7115: my %returnhash=(); 7116: # 7117: if ($rep eq 'unknown_cmd') { 7118: # an old lond will not know currentdump 7119: # Do a dump and make it look like a currentdump 7120: my @tmp = &dumpstore($courseid,$sdom,$sname,'.'); 7121: return if ($tmp[0] =~ /^(error:|no_such_host)/); 7122: my %hash = @tmp; 7123: @tmp=(); 7124: %returnhash = %{&convert_dump_to_currentdump(\%hash)}; 7125: } else { 7126: my @pairs=split(/\&/,$rep); 7127: foreach my $pair (@pairs) { 7128: my ($key,$value)=split(/=/,$pair,2); 7129: my ($symb,$param) = split(/:/,$key); 7130: $returnhash{&unescape($symb)}->{&unescape($param)} = 7131: &thaw_unescape($value); 7132: } 7133: } 7134: return %returnhash; 7135: } 7136: 7137: sub convert_dump_to_currentdump{ 7138: my %hash = %{shift()}; 7139: my %returnhash; 7140: # Code ripped from lond, essentially. The only difference 7141: # here is the unescaping done by lonnet::dump(). Conceivably 7142: # we might run in to problems with parameter names =~ /^v\./ 7143: while (my ($key,$value) = each(%hash)) { 7144: my ($v,$symb,$param) = split(/:/,$key); 7145: $symb = &unescape($symb); 7146: $param = &unescape($param); 7147: next if ($v eq 'version' || $symb eq 'keys'); 7148: next if (exists($returnhash{$symb}) && 7149: exists($returnhash{$symb}->{$param}) && 7150: $returnhash{$symb}->{'v.'.$param} > $v); 7151: $returnhash{$symb}->{$param}=$value; 7152: $returnhash{$symb}->{'v.'.$param}=$v; 7153: } 7154: # 7155: # Remove all of the keys in the hashes which keep track of 7156: # the version of the parameter. 7157: while (my ($symb,$param_hash) = each(%returnhash)) { 7158: # use a foreach because we are going to delete from the hash. 7159: foreach my $key (keys(%$param_hash)) { 7160: delete($param_hash->{$key}) if ($key =~ /^v\./); 7161: } 7162: } 7163: return \%returnhash; 7164: } 7165: 7166: # ------------------------------------------------------ critical inc interface 7167: 7168: sub cinc { 7169: return &inc(@_,'critical'); 7170: } 7171: 7172: # --------------------------------------------------------------- inc interface 7173: 7174: sub inc { 7175: my ($namespace,$store,$udomain,$uname,$critical) = @_; 7176: if (!$udomain) { $udomain=$env{'user.domain'}; } 7177: if (!$uname) { $uname=$env{'user.name'}; } 7178: my $uhome=&homeserver($uname,$udomain); 7179: my $items=''; 7180: if (! ref($store)) { 7181: # got a single value, so use that instead 7182: $items = &escape($store).'=&'; 7183: } elsif (ref($store) eq 'SCALAR') { 7184: $items = &escape($$store).'=&'; 7185: } elsif (ref($store) eq 'ARRAY') { 7186: $items = join('=&',map {&escape($_);} @{$store}); 7187: } elsif (ref($store) eq 'HASH') { 7188: while (my($key,$value) = each(%{$store})) { 7189: $items.= &escape($key).'='.&escape($value).'&'; 7190: } 7191: } 7192: $items=~s/\&$//; 7193: if ($critical) { 7194: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome); 7195: } else { 7196: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome); 7197: } 7198: } 7199: 7200: # --------------------------------------------------------------- put interface 7201: 7202: sub put { 7203: my ($namespace,$storehash,$udomain,$uname)=@_; 7204: if (!$udomain) { $udomain=$env{'user.domain'}; } 7205: if (!$uname) { $uname=$env{'user.name'}; } 7206: my $uhome=&homeserver($uname,$udomain); 7207: my $items=''; 7208: foreach my $item (keys(%$storehash)) { 7209: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7210: } 7211: $items=~s/\&$//; 7212: return &reply("put:$udomain:$uname:$namespace:$items",$uhome); 7213: } 7214: 7215: # ------------------------------------------------------------ newput interface 7216: 7217: sub newput { 7218: my ($namespace,$storehash,$udomain,$uname)=@_; 7219: if (!$udomain) { $udomain=$env{'user.domain'}; } 7220: if (!$uname) { $uname=$env{'user.name'}; } 7221: my $uhome=&homeserver($uname,$udomain); 7222: my $items=''; 7223: foreach my $key (keys(%$storehash)) { 7224: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 7225: } 7226: $items=~s/\&$//; 7227: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome); 7228: } 7229: 7230: # --------------------------------------------------------- putstore interface 7231: 7232: sub putstore { 7233: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_; 7234: if (!$udomain) { $udomain=$env{'user.domain'}; } 7235: if (!$uname) { $uname=$env{'user.name'}; } 7236: my $uhome=&homeserver($uname,$udomain); 7237: my $items=''; 7238: foreach my $key (keys(%$storehash)) { 7239: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&'; 7240: } 7241: $items=~s/\&$//; 7242: my $esc_symb=&escape($symb); 7243: my $esc_v=&escape($version); 7244: my $reply = 7245: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items", 7246: $uhome); 7247: if (($tolog) && ($reply eq 'ok')) { 7248: my $namevalue=''; 7249: foreach my $key (keys(%{$storehash})) { 7250: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&'; 7251: } 7252: $namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}). 7253: '&host='.&escape($perlvar{'lonHostID'}). 7254: '&version='.$esc_v. 7255: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'}); 7256: &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue); 7257: } 7258: if ($reply eq 'unknown_cmd') { 7259: # gfall back to way things use to be done 7260: return &old_putstore($namespace,$symb,$version,$storehash,$udomain, 7261: $uname); 7262: } 7263: return $reply; 7264: } 7265: 7266: sub old_putstore { 7267: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_; 7268: if (!$udomain) { $udomain=$env{'user.domain'}; } 7269: if (!$uname) { $uname=$env{'user.name'}; } 7270: my $uhome=&homeserver($uname,$udomain); 7271: my %newstorehash; 7272: foreach my $item (keys(%$storehash)) { 7273: my $key = $version.':'.&escape($symb).':'.$item; 7274: $newstorehash{$key} = $storehash->{$item}; 7275: } 7276: my $items=''; 7277: my %allitems = (); 7278: foreach my $item (keys(%newstorehash)) { 7279: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) { 7280: my $key = $1.':keys:'.$2; 7281: $allitems{$key} .= $3.':'; 7282: } 7283: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&'; 7284: } 7285: foreach my $item (keys(%allitems)) { 7286: $allitems{$item} =~ s/\:$//; 7287: $items.= $item.'='.$allitems{$item}.'&'; 7288: } 7289: $items=~s/\&$//; 7290: return &reply("put:$udomain:$uname:$namespace:$items",$uhome); 7291: } 7292: 7293: # ------------------------------------------------------ critical put interface 7294: 7295: sub cput { 7296: my ($namespace,$storehash,$udomain,$uname)=@_; 7297: if (!$udomain) { $udomain=$env{'user.domain'}; } 7298: if (!$uname) { $uname=$env{'user.name'}; } 7299: my $uhome=&homeserver($uname,$udomain); 7300: my $items=''; 7301: foreach my $item (keys(%$storehash)) { 7302: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7303: } 7304: $items=~s/\&$//; 7305: return &critical("put:$udomain:$uname:$namespace:$items",$uhome); 7306: } 7307: 7308: # -------------------------------------------------------------- eget interface 7309: 7310: sub eget { 7311: my ($namespace,$storearr,$udomain,$uname)=@_; 7312: my $items=''; 7313: foreach my $item (@$storearr) { 7314: $items.=&escape($item).'&'; 7315: } 7316: $items=~s/\&$//; 7317: if (!$udomain) { $udomain=$env{'user.domain'}; } 7318: if (!$uname) { $uname=$env{'user.name'}; } 7319: my $uhome=&homeserver($uname,$udomain); 7320: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome); 7321: my @pairs=split(/\&/,$rep); 7322: my %returnhash=(); 7323: my $i=0; 7324: foreach my $item (@$storearr) { 7325: $returnhash{$item}=&thaw_unescape($pairs[$i]); 7326: $i++; 7327: } 7328: return %returnhash; 7329: } 7330: 7331: # ------------------------------------------------------------ tmpput interface 7332: sub tmpput { 7333: my ($storehash,$server,$context)=@_; 7334: my $items=''; 7335: foreach my $item (keys(%$storehash)) { 7336: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; 7337: } 7338: $items=~s/\&$//; 7339: if (defined($context)) { 7340: $items .= ':'.&escape($context); 7341: } 7342: return &reply("tmpput:$items",$server); 7343: } 7344: 7345: # ------------------------------------------------------------ tmpget interface 7346: sub tmpget { 7347: my ($token,$server)=@_; 7348: if (!defined($server)) { $server = $perlvar{'lonHostID'}; } 7349: my $rep=&reply("tmpget:$token",$server); 7350: my %returnhash; 7351: if ($rep =~ /^(con_lost|error|no_such_host)/i) { 7352: return %returnhash; 7353: } 7354: foreach my $item (split(/\&/,$rep)) { 7355: my ($key,$value)=split(/=/,$item); 7356: $returnhash{&unescape($key)}=&thaw_unescape($value); 7357: } 7358: return %returnhash; 7359: } 7360: 7361: # ------------------------------------------------------------ tmpdel interface 7362: sub tmpdel { 7363: my ($token,$server)=@_; 7364: if (!defined($server)) { $server = $perlvar{'lonHostID'}; } 7365: return &reply("tmpdel:$token",$server); 7366: } 7367: 7368: # ------------------------------------------------------------ get_timebased_id 7369: 7370: sub get_timebased_id { 7371: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries, 7372: $maxtries) = @_; 7373: my ($newid,$error,$dellock); 7374: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) { 7375: return ('','ok','invalid call to get suffix'); 7376: } 7377: 7378: # set defaults for any optional args for which values were not supplied 7379: if ($who eq '') { 7380: $who = $env{'user.name'}.':'.$env{'user.domain'}; 7381: } 7382: if (!$locktries) { 7383: $locktries = 3; 7384: } 7385: if (!$maxtries) { 7386: $maxtries = 10; 7387: } 7388: 7389: if (($cdom eq '') || ($cnum eq '')) { 7390: if ($env{'request.course.id'}) { 7391: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 7392: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 7393: } 7394: if (($cdom eq '') || ($cnum eq '')) { 7395: return ('','ok','call to get suffix not in course context'); 7396: } 7397: } 7398: 7399: # construct locking item 7400: my $lockhash = { 7401: $prefix."\0".'locked_'.$keyid => $who, 7402: }; 7403: my $tries = 0; 7404: 7405: # attempt to get lock on nohist_$namespace file 7406: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); 7407: while (($gotlock ne 'ok') && $tries <$locktries) { 7408: $tries ++; 7409: sleep 1; 7410: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); 7411: } 7412: 7413: # attempt to get unique identifier, based on current timestamp 7414: if ($gotlock eq 'ok') { 7415: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix); 7416: my $id = time; 7417: $newid = $id; 7418: if ($idtype eq 'addcode') { 7419: $newid .= &sixnum_code(); 7420: } 7421: my $idtries = 0; 7422: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) { 7423: if ($idtype eq 'concat') { 7424: $newid = $id.$idtries; 7425: } elsif ($idtype eq 'addcode') { 7426: $newid = $newid.&sixnum_code(); 7427: } else { 7428: $newid ++; 7429: } 7430: $idtries ++; 7431: } 7432: if (!exists($inuse{$prefix."\0".$newid})) { 7433: my %new_item = ( 7434: $prefix."\0".$newid => $who, 7435: ); 7436: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item, 7437: $cdom,$cnum); 7438: if ($putresult ne 'ok') { 7439: undef($newid); 7440: $error = 'error saving new item: '.$putresult; 7441: } 7442: } else { 7443: undef($newid); 7444: $error = ('error: no unique suffix available for the new item '); 7445: } 7446: # remove lock 7447: my @del_lock = ($prefix."\0".'locked_'.$keyid); 7448: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum); 7449: } else { 7450: $error = "error: could not obtain lockfile\n"; 7451: $dellock = 'ok'; 7452: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) { 7453: $dellock = 'nolock'; 7454: } 7455: } 7456: return ($newid,$dellock,$error); 7457: } 7458: 7459: sub sixnum_code { 7460: my $code; 7461: for (0..6) { 7462: $code .= int( rand(9) ); 7463: } 7464: return $code; 7465: } 7466: 7467: # -------------------------------------------------- portfolio access checking 7468: 7469: sub portfolio_access { 7470: my ($requrl,$clientip) = @_; 7471: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl); 7472: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip); 7473: if ($result) { 7474: my %setters; 7475: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { 7476: my ($startblock,$endblock) = 7477: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom); 7478: if ($startblock && $endblock) { 7479: return 'B'; 7480: } 7481: } else { 7482: my ($startblock,$endblock) = 7483: &Apache::loncommon::blockcheck(\%setters,'port'); 7484: if ($startblock && $endblock) { 7485: return 'B'; 7486: } 7487: } 7488: } 7489: if ($result eq 'ok') { 7490: return 'F'; 7491: } elsif ($result =~ /^[^:]+:guest_/) { 7492: return 'A'; 7493: } 7494: return ''; 7495: } 7496: 7497: sub get_portfolio_access { 7498: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_; 7499: 7500: if (!ref($access_hash)) { 7501: my $current_perms = &get_portfile_permissions($udom,$unum); 7502: my %access_controls = &get_access_controls($current_perms,$group, 7503: $file_name); 7504: $access_hash = $access_controls{$file_name}; 7505: } 7506: 7507: my ($public,$guest,@domains,@users,@courses,@groups,@ips); 7508: my $now = time; 7509: if (ref($access_hash) eq 'HASH') { 7510: foreach my $key (keys(%{$access_hash})) { 7511: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); 7512: if ($start > $now) { 7513: next; 7514: } 7515: if ($end && $end<$now) { 7516: next; 7517: } 7518: if ($scope eq 'public') { 7519: $public = $key; 7520: last; 7521: } elsif ($scope eq 'guest') { 7522: $guest = $key; 7523: } elsif ($scope eq 'domains') { 7524: push(@domains,$key); 7525: } elsif ($scope eq 'users') { 7526: push(@users,$key); 7527: } elsif ($scope eq 'course') { 7528: push(@courses,$key); 7529: } elsif ($scope eq 'group') { 7530: push(@groups,$key); 7531: } elsif ($scope eq 'ip') { 7532: push(@ips,$key); 7533: } 7534: } 7535: if ($public) { 7536: return 'ok'; 7537: } elsif (@ips > 0) { 7538: my $allowed; 7539: foreach my $ipkey (@ips) { 7540: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') { 7541: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) { 7542: $allowed = 1; 7543: last; 7544: } 7545: } 7546: } 7547: if ($allowed) { 7548: return 'ok'; 7549: } 7550: } 7551: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { 7552: if ($guest) { 7553: return $guest; 7554: } 7555: } else { 7556: if (@domains > 0) { 7557: foreach my $domkey (@domains) { 7558: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') { 7559: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) { 7560: return 'ok'; 7561: } 7562: } 7563: } 7564: } 7565: if (@users > 0) { 7566: foreach my $userkey (@users) { 7567: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') { 7568: foreach my $item (@{$access_hash->{$userkey}{'users'}}) { 7569: if (ref($item) eq 'HASH') { 7570: if (($item->{'uname'} eq $env{'user.name'}) && 7571: ($item->{'udom'} eq $env{'user.domain'})) { 7572: return 'ok'; 7573: } 7574: } 7575: } 7576: } 7577: } 7578: } 7579: my %roleshash; 7580: my @courses_and_groups = @courses; 7581: push(@courses_and_groups,@groups); 7582: if (@courses_and_groups > 0) { 7583: my (%allgroups,%allroles); 7584: my ($start,$end,$role,$sec,$group); 7585: foreach my $envkey (%env) { 7586: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) { 7587: my $cid = $2.'_'.$3; 7588: if ($1 eq 'gr') { 7589: $group = $4; 7590: $allgroups{$cid}{$group} = $env{$envkey}; 7591: } else { 7592: if ($4 eq '') { 7593: $sec = 'none'; 7594: } else { 7595: $sec = $4; 7596: } 7597: $allroles{$cid}{$1}{$sec} = $env{$envkey}; 7598: } 7599: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) { 7600: my $cid = $2.'_'.$3; 7601: if ($4 eq '') { 7602: $sec = 'none'; 7603: } else { 7604: $sec = $4; 7605: } 7606: $allroles{$cid}{$1}{$sec} = $env{$envkey}; 7607: } 7608: } 7609: if (keys(%allroles) == 0) { 7610: return; 7611: } 7612: foreach my $key (@courses_and_groups) { 7613: my %content = %{$$access_hash{$key}}; 7614: my $cnum = $content{'number'}; 7615: my $cdom = $content{'domain'}; 7616: my $cid = $cdom.'_'.$cnum; 7617: if (!exists($allroles{$cid})) { 7618: next; 7619: } 7620: foreach my $role_id (keys(%{$content{'roles'}})) { 7621: my @sections = @{$content{'roles'}{$role_id}{'section'}}; 7622: my @groups = @{$content{'roles'}{$role_id}{'group'}}; 7623: my @status = @{$content{'roles'}{$role_id}{'access'}}; 7624: my @roles = @{$content{'roles'}{$role_id}{'role'}}; 7625: foreach my $role (keys(%{$allroles{$cid}})) { 7626: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) { 7627: foreach my $sec (keys(%{$allroles{$cid}{$role}})) { 7628: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') { 7629: if (grep/^all$/,@sections) { 7630: return 'ok'; 7631: } else { 7632: if (grep/^$sec$/,@sections) { 7633: return 'ok'; 7634: } 7635: } 7636: } 7637: } 7638: if (keys(%{$allgroups{$cid}}) == 0) { 7639: if (grep/^none$/,@groups) { 7640: return 'ok'; 7641: } 7642: } else { 7643: if (grep/^all$/,@groups) { 7644: return 'ok'; 7645: } 7646: foreach my $group (keys(%{$allgroups{$cid}})) { 7647: if (grep/^$group$/,@groups) { 7648: return 'ok'; 7649: } 7650: } 7651: } 7652: } 7653: } 7654: } 7655: } 7656: } 7657: if ($guest) { 7658: return $guest; 7659: } 7660: } 7661: } 7662: return; 7663: } 7664: 7665: sub course_group_datechecker { 7666: my ($dates,$now,$status) = @_; 7667: my ($start,$end) = split(/\./,$dates); 7668: if (!$start && !$end) { 7669: return 'ok'; 7670: } 7671: if (grep/^active$/,@{$status}) { 7672: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) { 7673: return 'ok'; 7674: } 7675: } 7676: if (grep/^previous$/,@{$status}) { 7677: if ($end > $now ) { 7678: return 'ok'; 7679: } 7680: } 7681: if (grep/^future$/,@{$status}) { 7682: if ($start > $now) { 7683: return 'ok'; 7684: } 7685: } 7686: return; 7687: } 7688: 7689: sub parse_portfolio_url { 7690: my ($url) = @_; 7691: 7692: my ($type,$udom,$unum,$group,$file_name); 7693: 7694: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) { 7695: $type = 1; 7696: $udom = $1; 7697: $unum = $2; 7698: $file_name = $3; 7699: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) { 7700: $type = 2; 7701: $udom = $1; 7702: $unum = $2; 7703: $group = $3; 7704: $file_name = $3.'/'.$4; 7705: } 7706: if (wantarray) { 7707: return ($type,$udom,$unum,$file_name,$group); 7708: } 7709: return $type; 7710: } 7711: 7712: sub is_portfolio_url { 7713: my ($url) = @_; 7714: return scalar(&parse_portfolio_url($url)); 7715: } 7716: 7717: sub is_portfolio_file { 7718: my ($file) = @_; 7719: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) { 7720: return 1; 7721: } 7722: return; 7723: } 7724: 7725: sub usertools_access { 7726: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_; 7727: my ($access,%tools); 7728: if ($context eq '') { 7729: $context = 'tools'; 7730: } 7731: if ($context eq 'requestcourses') { 7732: %tools = ( 7733: official => 1, 7734: unofficial => 1, 7735: community => 1, 7736: textbook => 1, 7737: placement => 1, 7738: lti => 1, 7739: ); 7740: } elsif ($context eq 'requestauthor') { 7741: %tools = ( 7742: requestauthor => 1, 7743: ); 7744: } else { 7745: %tools = ( 7746: aboutme => 1, 7747: blog => 1, 7748: webdav => 1, 7749: portfolio => 1, 7750: ); 7751: } 7752: return if (!defined($tools{$tool})); 7753: 7754: if (($udom eq '') || ($uname eq '')) { 7755: $udom = $env{'user.domain'}; 7756: $uname = $env{'user.name'}; 7757: } 7758: 7759: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 7760: if ($action ne 'reload') { 7761: if ($context eq 'requestcourses') { 7762: return $env{'environment.canrequest.'.$tool}; 7763: } elsif ($context eq 'requestauthor') { 7764: return $env{'environment.canrequest.author'}; 7765: } else { 7766: return $env{'environment.availabletools.'.$tool}; 7767: } 7768: } 7769: } 7770: 7771: my ($toolstatus,$inststatus,$envkey); 7772: if ($context eq 'requestauthor') { 7773: $envkey = $context; 7774: } else { 7775: $envkey = $context.'.'.$tool; 7776: } 7777: 7778: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && 7779: ($action ne 'reload')) { 7780: $toolstatus = $env{'environment.'.$envkey}; 7781: $inststatus = $env{'environment.inststatus'}; 7782: } else { 7783: if (ref($userenvref) eq 'HASH') { 7784: $toolstatus = $userenvref->{$envkey}; 7785: $inststatus = $userenvref->{'inststatus'}; 7786: } else { 7787: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus'); 7788: $toolstatus = $userenv{$envkey}; 7789: $inststatus = $userenv{'inststatus'}; 7790: } 7791: } 7792: 7793: if ($toolstatus ne '') { 7794: if ($toolstatus) { 7795: $access = 1; 7796: } else { 7797: $access = 0; 7798: } 7799: return $access; 7800: } 7801: 7802: my ($is_adv,%domdef); 7803: if (ref($is_advref) eq 'HASH') { 7804: $is_adv = $is_advref->{'is_adv'}; 7805: } else { 7806: $is_adv = &is_advanced_user($udom,$uname); 7807: } 7808: if (ref($domdefref) eq 'HASH') { 7809: %domdef = %{$domdefref}; 7810: } else { 7811: %domdef = &get_domain_defaults($udom); 7812: } 7813: if (ref($domdef{$tool}) eq 'HASH') { 7814: if ($is_adv) { 7815: if ($domdef{$tool}{'_LC_adv'} ne '') { 7816: if ($domdef{$tool}{'_LC_adv'}) { 7817: $access = 1; 7818: } else { 7819: $access = 0; 7820: } 7821: return $access; 7822: } 7823: } 7824: if ($inststatus ne '') { 7825: my ($hasaccess,$hasnoaccess); 7826: foreach my $affiliation (split(/:/,$inststatus)) { 7827: if ($domdef{$tool}{$affiliation} ne '') { 7828: if ($domdef{$tool}{$affiliation}) { 7829: $hasaccess = 1; 7830: } else { 7831: $hasnoaccess = 1; 7832: } 7833: } 7834: } 7835: if ($hasaccess || $hasnoaccess) { 7836: if ($hasaccess) { 7837: $access = 1; 7838: } elsif ($hasnoaccess) { 7839: $access = 0; 7840: } 7841: return $access; 7842: } 7843: } else { 7844: if ($domdef{$tool}{'default'} ne '') { 7845: if ($domdef{$tool}{'default'}) { 7846: $access = 1; 7847: } elsif ($domdef{$tool}{'default'} == 0) { 7848: $access = 0; 7849: } 7850: return $access; 7851: } 7852: } 7853: } else { 7854: if (($context eq 'tools') && ($tool ne 'webdav')) { 7855: $access = 1; 7856: } else { 7857: $access = 0; 7858: } 7859: return $access; 7860: } 7861: } 7862: 7863: sub is_course_owner { 7864: my ($cdom,$cnum,$udom,$uname) = @_; 7865: if (($udom eq '') || ($uname eq '')) { 7866: $udom = $env{'user.domain'}; 7867: $uname = $env{'user.name'}; 7868: } 7869: unless (($udom eq '') || ($uname eq '')) { 7870: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) { 7871: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) { 7872: return 1; 7873: } else { 7874: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum); 7875: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) { 7876: return 1; 7877: } 7878: } 7879: } 7880: } 7881: return; 7882: } 7883: 7884: sub is_advanced_user { 7885: my ($udom,$uname) = @_; 7886: if ($udom ne '' && $uname ne '') { 7887: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 7888: if (wantarray) { 7889: return ($env{'user.adv'},$env{'user.author'}); 7890: } else { 7891: return $env{'user.adv'}; 7892: } 7893: } 7894: } 7895: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1); 7896: my %allroles; 7897: my ($is_adv,$is_author); 7898: foreach my $role (keys(%roleshash)) { 7899: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role); 7900: my $area = '/'.$tdomain.'/'.$trest; 7901: if ($sec ne '') { 7902: $area .= '/'.$sec; 7903: } 7904: if (($area ne '') && ($trole ne '')) { 7905: my $spec=$trole.'.'.$area; 7906: if ($trole =~ /^cr\//) { 7907: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); 7908: } elsif ($trole ne 'gr') { 7909: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); 7910: } 7911: if ($trole eq 'au') { 7912: $is_author = 1; 7913: } 7914: } 7915: } 7916: foreach my $role (keys(%allroles)) { 7917: last if ($is_adv); 7918: foreach my $item (split(/:/,$allroles{$role})) { 7919: if ($item ne '') { 7920: my ($privilege,$restrictions)=split(/&/,$item); 7921: if ($privilege eq 'adv') { 7922: $is_adv = 1; 7923: last; 7924: } 7925: } 7926: } 7927: } 7928: if (wantarray) { 7929: return ($is_adv,$is_author); 7930: } 7931: return $is_adv; 7932: } 7933: 7934: sub check_can_request { 7935: my ($dom,$can_request,$request_domains,$uname,$udom) = @_; 7936: my $canreq = 0; 7937: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { 7938: $uname = $env{'user.name'}; 7939: $udom = $env{'user.domain'}; 7940: } 7941: my ($types,$typename) = &Apache::loncommon::course_types(); 7942: my @options = ('approval','validate','autolimit'); 7943: my $optregex = join('|',@options); 7944: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) { 7945: foreach my $type (@{$types}) { 7946: if (&usertools_access($uname,$udom,$type,undef, 7947: 'requestcourses')) { 7948: $canreq ++; 7949: if (ref($request_domains) eq 'HASH') { 7950: push(@{$request_domains->{$type}},$udom); 7951: } 7952: if ($dom eq $udom) { 7953: $can_request->{$type} = 1; 7954: } 7955: } 7956: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') && 7957: ($env{'environment.reqcrsotherdom.'.$type} ne '')) { 7958: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type}); 7959: if (@curr > 0) { 7960: foreach my $item (@curr) { 7961: if (ref($request_domains) eq 'HASH') { 7962: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/); 7963: if ($otherdom ne '') { 7964: if (ref($request_domains->{$type}) eq 'ARRAY') { 7965: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) { 7966: push(@{$request_domains->{$type}},$otherdom); 7967: } 7968: } else { 7969: push(@{$request_domains->{$type}},$otherdom); 7970: } 7971: } 7972: } 7973: } 7974: unless ($dom eq $env{'user.domain'}) { 7975: $canreq ++; 7976: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) { 7977: $can_request->{$type} = 1; 7978: } 7979: } 7980: } 7981: } 7982: } 7983: } 7984: return $canreq; 7985: } 7986: 7987: # ---------------------------------------------- Custom access rule evaluation 7988: 7989: sub customaccess { 7990: my ($priv,$uri)=@_; 7991: my ($urole,$urealm)=split(/\./,$env{'request.role'},2); 7992: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm); 7993: $udom = &LONCAPA::clean_domain($udom); 7994: $ucrs = &LONCAPA::clean_username($ucrs); 7995: my $access=0; 7996: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) { 7997: my ($effect,$realm,$role,$type)=split(/\:/,$right); 7998: if ($type eq 'user') { 7999: foreach my $scope (split(/\s*\,\s*/,$realm)) { 8000: my ($tdom,$tuname)=split(m{/},$scope); 8001: if ($tdom) { 8002: if ($tdom ne $env{'user.domain'}) { next; } 8003: } 8004: if ($tuname) { 8005: if ($tuname ne $env{'user.name'}) { next; } 8006: } 8007: $access=($effect eq 'allow'); 8008: last; 8009: } 8010: } else { 8011: if ($role) { 8012: if ($role ne $urole) { next; } 8013: } 8014: foreach my $scope (split(/\s*\,\s*/,$realm)) { 8015: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope); 8016: if ($tdom) { 8017: if ($tdom ne $udom) { next; } 8018: } 8019: if ($tcrs) { 8020: if ($tcrs ne $ucrs) { next; } 8021: } 8022: if ($tsec) { 8023: if ($tsec ne $usec) { next; } 8024: } 8025: $access=($effect eq 'allow'); 8026: last; 8027: } 8028: if ($realm eq '' && $role eq '') { 8029: $access=($effect eq 'allow'); 8030: } 8031: } 8032: } 8033: return $access; 8034: } 8035: 8036: # ------------------------------------------------- Check for a user privilege 8037: 8038: sub allowed { 8039: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_; 8040: my $ver_orguri=$uri; 8041: $uri=&deversion($uri); 8042: my $orguri=$uri; 8043: $uri=&declutter($uri); 8044: 8045: if ($priv eq 'evb') { 8046: # Evade communication block restrictions for specified role in a course 8047: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) { 8048: return $1; 8049: } else { 8050: return; 8051: } 8052: } 8053: 8054: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; } 8055: # Free bre access to adm and meta resources 8056: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|ext\.tool)$})) 8057: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) )) 8058: && ($priv eq 'bre')) { 8059: return 'F'; 8060: } 8061: 8062: # Free bre access to user's own portfolio contents 8063: my ($space,$domain,$name,@dir)=split('/',$uri); 8064: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) && 8065: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) { 8066: my %setters; 8067: my ($startblock,$endblock) = 8068: &Apache::loncommon::blockcheck(\%setters,'port'); 8069: if ($startblock && $endblock) { 8070: return 'B'; 8071: } else { 8072: return 'F'; 8073: } 8074: } 8075: 8076: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course. 8077: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups') 8078: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) { 8079: if (exists($env{'request.course.id'})) { 8080: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8081: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 8082: if (($domain eq $cdom) && ($name eq $cnum)) { 8083: my $courseprivid=$env{'request.course.id'}; 8084: $courseprivid=~s/\_/\//; 8085: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid 8086: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) { 8087: return $1; 8088: } else { 8089: if ($env{'request.course.sec'}) { 8090: $courseprivid.='/'.$env{'request.course.sec'}; 8091: } 8092: if ($env{'user.priv.'.$env{'request.role'}.'./'. 8093: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) { 8094: return $2; 8095: } 8096: } 8097: } 8098: } 8099: } 8100: 8101: # Free bre to public access 8102: 8103: if ($priv eq 'bre') { 8104: my $copyright; 8105: unless ($uri =~ /ext\.tool/) { 8106: $copyright=&metadata($uri,'copyright'); 8107: } 8108: if (($copyright eq 'public') && (!$env{'request.course.id'})) { 8109: return 'F'; 8110: } 8111: if ($copyright eq 'priv') { 8112: $uri=~/([^\/]+)\/([^\/]+)\//; 8113: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) { 8114: return ''; 8115: } 8116: } 8117: if ($copyright eq 'domain') { 8118: $uri=~/([^\/]+)\/([^\/]+)\//; 8119: unless (($env{'user.domain'} eq $1) || 8120: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) { 8121: return ''; 8122: } 8123: } 8124: if ($env{'request.role'}=~ /li\.\//) { 8125: # Library role, so allow browsing of resources in this domain. 8126: return 'F'; 8127: } 8128: if ($copyright eq 'custom') { 8129: unless (&customaccess($priv,$uri)) { return ''; } 8130: } 8131: } 8132: # Domain coordinator is trying to create a course 8133: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) { 8134: # uri is the requested domain in this case. 8135: # comparison to 'request.role.domain' shows if the user has selected 8136: # a role of dc for the domain in question. 8137: return 'F' if ($uri eq $env{'request.role.domain'}); 8138: } 8139: 8140: my $thisallowed=''; 8141: my $statecond=0; 8142: my $courseprivid=''; 8143: 8144: my $ownaccess; 8145: # Community Coordinator or Assistant Co-author browsing resource space. 8146: if (($priv eq 'bro') && ($env{'user.author'})) { 8147: if ($uri eq '') { 8148: $ownaccess = 1; 8149: } else { 8150: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) { 8151: my $udom = $env{'user.domain'}; 8152: my $uname = $env{'user.name'}; 8153: if ($uri =~ m{^\Q$udom\E/?$}) { 8154: $ownaccess = 1; 8155: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) { 8156: unless ($uri =~ m{\.\./}) { 8157: $ownaccess = 1; 8158: } 8159: } elsif (($udom ne 'public') && ($uname ne 'public')) { 8160: my $now = time; 8161: if ($uri =~ m{^([^/]+)/?$}) { 8162: my $adom = $1; 8163: foreach my $key (keys(%env)) { 8164: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) { 8165: my ($start,$end) = split('.',$env{$key}); 8166: if (($now >= $start) && (!$end || $end < $now)) { 8167: $ownaccess = 1; 8168: last; 8169: } 8170: } 8171: } 8172: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) { 8173: my $adom = $1; 8174: my $aname = $2; 8175: foreach my $role ('ca','aa') { 8176: if ($env{"user.role.$role./$adom/$aname"}) { 8177: my ($start,$end) = 8178: split('.',$env{"user.role.$role./$adom/$aname"}); 8179: if (($now >= $start) && (!$end || $end < $now)) { 8180: $ownaccess = 1; 8181: last; 8182: } 8183: } 8184: } 8185: } 8186: } 8187: } 8188: } 8189: } 8190: 8191: # Course 8192: 8193: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) { 8194: unless (($priv eq 'bro') && (!$ownaccess)) { 8195: $thisallowed.=$1; 8196: } 8197: } 8198: 8199: # Domain 8200: 8201: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} 8202: =~/\Q$priv\E\&([^\:]*)/) { 8203: unless (($priv eq 'bro') && (!$ownaccess)) { 8204: $thisallowed.=$1; 8205: } 8206: } 8207: 8208: # User who is not author or co-author might still be able to edit 8209: # resource of an author in the domain (e.g., if Domain Coordinator). 8210: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) && 8211: (&allowed('mdc',$env{'request.course.id'}))) { 8212: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) { 8213: $thisallowed.=$1; 8214: } 8215: } 8216: 8217: # Course: uri itself is a course 8218: my $courseuri=$uri; 8219: $courseuri=~s/\_(\d)/\/$1/; 8220: $courseuri=~s/^([^\/])/\/$1/; 8221: 8222: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri} 8223: =~/\Q$priv\E\&([^\:]*)/) { 8224: if ($priv eq 'mip') { 8225: my $rem = $1; 8226: if (($uri ne '') && ($env{'request.course.id'} eq $uri) && 8227: ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) { 8228: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8229: if ($cdom ne '') { 8230: my %passwdconf = &get_passwdconf($cdom); 8231: if (ref($passwdconf{'crsownerchg'}) eq 'HASH') { 8232: if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') { 8233: if (@{$passwdconf{'crsownerchg'}{'by'}}) { 8234: my @inststatuses = split(':',$env{'environment.inststatus'}); 8235: unless (@inststatuses) { 8236: @inststatuses = ('default'); 8237: } 8238: foreach my $status (@inststatuses) { 8239: if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) { 8240: $thisallowed.=$rem; 8241: } 8242: } 8243: } 8244: } 8245: } 8246: } 8247: } 8248: } else { 8249: unless (($priv eq 'bro') && (!$ownaccess)) { 8250: $thisallowed.=$1; 8251: } 8252: } 8253: } 8254: 8255: # URI is an uploaded document for this course, default permissions don't matter 8256: # not allowing 'edit' access (editupload) to uploaded course docs 8257: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) { 8258: $thisallowed=''; 8259: my ($match)=&is_on_map($uri); 8260: if ($match) { 8261: if ($env{'user.priv.'.$env{'request.role'}.'./'} 8262: =~/\Q$priv\E\&([^\:]*)/) { 8263: my $value = $1; 8264: my $deeplinkblock = &deeplink_check($priv,$symb,$uri); 8265: if ($deeplinkblock) { 8266: $thisallowed='D'; 8267: } elsif ($noblockcheck) { 8268: $thisallowed.=$value; 8269: } else { 8270: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); 8271: if (@blockers > 0) { 8272: $thisallowed = 'B'; 8273: } else { 8274: $thisallowed.=$value; 8275: } 8276: } 8277: } 8278: } else { 8279: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri}; 8280: if ($refuri) { 8281: if ($refuri =~ m|^/adm/|) { 8282: $thisallowed='F'; 8283: } else { 8284: $refuri=&declutter($refuri); 8285: my ($match) = &is_on_map($refuri); 8286: if ($match) { 8287: my $deeplinkblock = &deeplink_check($priv,$symb,$refuri); 8288: if ($deeplinkblock) { 8289: $thisallowed='D'; 8290: } elsif ($noblockcheck) { 8291: $thisallowed='F'; 8292: } else { 8293: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); 8294: if (@blockers > 0) { 8295: $thisallowed = 'B'; 8296: } else { 8297: $thisallowed='F'; 8298: } 8299: } 8300: } 8301: } 8302: } 8303: } 8304: } 8305: 8306: if ($priv eq 'bre' 8307: && $thisallowed ne 'F' 8308: && $thisallowed ne '2' 8309: && &is_portfolio_url($uri)) { 8310: $thisallowed = &portfolio_access($uri,$clientip); 8311: } 8312: 8313: # Full access at system, domain or course-wide level? Exit. 8314: if ($thisallowed=~/F/) { 8315: return 'F'; 8316: } 8317: 8318: # If this is generating or modifying users, exit with special codes 8319: 8320: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) { 8321: if (($priv eq 'cca') || ($priv eq 'caa')) { 8322: my ($audom,$auname)=split('/',$uri); 8323: # no author name given, so this just checks on the general right to make a co-author in this domain 8324: unless ($auname) { return $thisallowed; } 8325: # an author name is given, so we are about to actually make a co-author for a certain account 8326: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) || 8327: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) && 8328: ($audom ne $env{'request.role.domain'}))) { return ''; } 8329: } 8330: return $thisallowed; 8331: } 8332: # 8333: # Gathered so far: system, domain and course wide privileges 8334: # 8335: # Course: See if uri or referer is an individual resource that is part of 8336: # the course 8337: 8338: if ($env{'request.course.id'}) { 8339: 8340: # If this is modifying password (internal auth) domains must match for user and user's role. 8341: 8342: if ($priv eq 'mip') { 8343: if ($env{'user.domain'} eq $env{'request.role.domain'}) { 8344: return $thisallowed; 8345: } else { 8346: return ''; 8347: } 8348: } 8349: 8350: $courseprivid=$env{'request.course.id'}; 8351: if ($env{'request.course.sec'}) { 8352: $courseprivid.='/'.$env{'request.course.sec'}; 8353: } 8354: $courseprivid=~s/\_/\//; 8355: my $checkreferer=1; 8356: my ($match,$cond)=&is_on_map($uri); 8357: if ($match) { 8358: $statecond=$cond; 8359: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} 8360: =~/\Q$priv\E\&([^\:]*)/) { 8361: my $value = $1; 8362: if ($priv eq 'bre') { 8363: if ($noblockcheck) { 8364: $thisallowed.=$value; 8365: } else { 8366: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); 8367: if (@blockers > 0) { 8368: $thisallowed = 'B'; 8369: } else { 8370: $thisallowed.=$value; 8371: } 8372: } 8373: } else { 8374: $thisallowed.=$value; 8375: } 8376: $checkreferer=0; 8377: } 8378: } 8379: 8380: if ($checkreferer) { 8381: my $refuri=$env{'httpref.'.$orguri}; 8382: unless ($refuri) { 8383: foreach my $key (keys(%env)) { 8384: if ($key=~/^httpref\..*\*/) { 8385: my $pattern=$key; 8386: $pattern=~s/^httpref\.\/res\///; 8387: $pattern=~s/\*/\[\^\/\]\+/g; 8388: $pattern=~s/\//\\\//g; 8389: if ($orguri=~/$pattern/) { 8390: $refuri=$env{$key}; 8391: } 8392: } 8393: } 8394: } 8395: 8396: if ($refuri) { 8397: $refuri=&declutter($refuri); 8398: my ($match,$cond)=&is_on_map($refuri); 8399: if ($match) { 8400: my $refstatecond=$cond; 8401: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} 8402: =~/\Q$priv\E\&([^\:]*)/) { 8403: my $value = $1; 8404: if ($priv eq 'bre') { 8405: my $deeplinkblock = &deeplink_check($priv,$symb,$refuri); 8406: if ($deeplinkblock) { 8407: $thisallowed = 'D'; 8408: } elsif ($noblockcheck) { 8409: $thisallowed.=$value; 8410: } else { 8411: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); 8412: if (@blockers > 0) { 8413: $thisallowed = 'B'; 8414: } else { 8415: $thisallowed.=$value; 8416: } 8417: } 8418: } else { 8419: $thisallowed.=$value; 8420: } 8421: $uri=$refuri; 8422: $statecond=$refstatecond; 8423: } 8424: } 8425: } 8426: } 8427: } 8428: 8429: # 8430: # Gathered now: all privileges that could apply, and condition number 8431: # 8432: # 8433: # Full or no access? 8434: # 8435: 8436: if ($thisallowed=~/F/) { 8437: return 'F'; 8438: } 8439: 8440: unless ($thisallowed) { 8441: return ''; 8442: } 8443: 8444: # Restrictions exist, deal with them 8445: # 8446: # C:according to course preferences 8447: # R:according to resource settings 8448: # L:unless locked 8449: # X:according to user session state 8450: # 8451: 8452: # Possibly locked functionality, check all courses 8453: # Locks might take effect only after 10 minutes cache expiration for other 8454: # courses, and 2 minutes for current course 8455: 8456: my $envkey; 8457: if ($thisallowed=~/L/) { 8458: foreach $envkey (keys(%env)) { 8459: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) { 8460: my $courseid=$2; 8461: my $roleid=$1.'.'.$2; 8462: $courseid=~s/^\///; 8463: my $expiretime=600; 8464: if ($env{'request.role'} eq $roleid) { 8465: $expiretime=120; 8466: } 8467: my ($cdom,$cnum,$csec)=split(/\//,$courseid); 8468: my $prefix='course.'.$cdom.'_'.$cnum.'.'; 8469: if ((time-$env{$prefix.'last_cache'})>$expiretime) { 8470: &coursedescription($courseid,{'freshen_cache' => 1}); 8471: } 8472: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/) 8473: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { 8474: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) { 8475: &log($env{'user.domain'},$env{'user.name'}, 8476: $env{'user.home'}, 8477: 'Locked by res: '.$priv.' for '.$uri.' due to '. 8478: $cdom.'/'.$cnum.'/'.$csec.' expire '. 8479: $env{$prefix.'priv.'.$priv.'.lock.expire'}); 8480: return ''; 8481: } 8482: } 8483: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/) 8484: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { 8485: if ($env{'priv.'.$priv.'.lock.expire'}>time) { 8486: &log($env{'user.domain'},$env{'user.name'}, 8487: $env{'user.home'}, 8488: 'Locked by priv: '.$priv.' for '.$uri.' due to '. 8489: $cdom.'/'.$cnum.'/'.$csec.' expire '. 8490: $env{$prefix.'priv.'.$priv.'.lock.expire'}); 8491: return ''; 8492: } 8493: } 8494: } 8495: } 8496: } 8497: 8498: # 8499: # Rest of the restrictions depend on selected course 8500: # 8501: 8502: unless ($env{'request.course.id'}) { 8503: if ($thisallowed eq 'A') { 8504: return 'A'; 8505: } elsif ($thisallowed eq 'B') { 8506: return 'B'; 8507: } else { 8508: return '1'; 8509: } 8510: } 8511: 8512: # 8513: # Now user is definitely in a course 8514: # 8515: 8516: 8517: # Course preferences 8518: 8519: if ($thisallowed=~/C/) { 8520: my $rolecode=(split(/\./,$env{'request.role'}))[0]; 8521: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'}; 8522: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'} 8523: =~/\Q$rolecode\E/) { 8524: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { 8525: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. 8526: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. 8527: $env{'request.course.id'}); 8528: } 8529: return ''; 8530: } 8531: 8532: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'} 8533: =~/\Q$unamedom\E/) { 8534: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { 8535: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}. 8536: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '. 8537: $env{'request.course.id'}); 8538: } 8539: return ''; 8540: } 8541: } 8542: 8543: # Resource preferences 8544: 8545: if ($thisallowed=~/R/) { 8546: my $rolecode=(split(/\./,$env{'request.role'}))[0]; 8547: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) { 8548: if (($priv ne 'pch') && ($priv ne 'plc')) { 8549: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. 8550: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); 8551: } 8552: return ''; 8553: } 8554: } 8555: 8556: # Restricted by state or randomout? 8557: 8558: if ($thisallowed=~/X/) { 8559: if ($env{'acc.randomout'}) { 8560: if (!$symb) { $symb=&symbread($uri,1); } 8561: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) { 8562: return ''; 8563: } 8564: } 8565: if (&condval($statecond)) { 8566: return '2'; 8567: } else { 8568: return ''; 8569: } 8570: } 8571: 8572: if ($thisallowed eq 'A') { 8573: return 'A'; 8574: } elsif ($thisallowed eq 'B') { 8575: return 'B'; 8576: } elsif ($thisallowed eq 'D') { 8577: return 'D'; 8578: } 8579: return 'F'; 8580: } 8581: 8582: # ------------------------------------------- Check construction space access 8583: 8584: sub constructaccess { 8585: my ($url,$setpriv)=@_; 8586: 8587: # We do not allow editing of previous versions of files 8588: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; } 8589: 8590: # Get username and domain from URL 8591: my ($ownername,$ownerdomain,$ownerhome); 8592: 8593: ($ownerdomain,$ownername) = 8594: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)}); 8595: 8596: # The URL does not really point to any authorspace, forget it 8597: unless (($ownername) && ($ownerdomain)) { return ''; } 8598: 8599: # Now we need to see if the user has access to the authorspace of 8600: # $ownername at $ownerdomain 8601: 8602: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) { 8603: # Real author for this? 8604: $ownerhome = $env{'user.home'}; 8605: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) { 8606: return ($ownername,$ownerdomain,$ownerhome); 8607: } 8608: } else { 8609: # Co-author for this? 8610: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) || 8611: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) { 8612: $ownerhome = &homeserver($ownername,$ownerdomain); 8613: return ($ownername,$ownerdomain,$ownerhome); 8614: } 8615: if ($env{'request.course.id'}) { 8616: if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) && 8617: ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) { 8618: if (&allowed('mdc',$env{'request.course.id'})) { 8619: $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'}; 8620: return ($ownername,$ownerdomain,$ownerhome); 8621: } 8622: } 8623: } 8624: } 8625: 8626: # We don't have any access right now. If we are not possibly going to do anything about this, 8627: # we might as well leave 8628: unless ($setpriv) { return ''; } 8629: 8630: # Backdoor access? 8631: my $allowed=&allowed('eco',$ownerdomain); 8632: # Nope 8633: unless ($allowed) { return ''; } 8634: # Looks like we may have access, but could be locked by the owner of the construction space 8635: if ($allowed eq 'U') { 8636: my %blocked=&get('environment',['domcoord.author'], 8637: $ownerdomain,$ownername); 8638: # Is blocked by owner 8639: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; } 8640: } 8641: if (($allowed eq 'F') || ($allowed eq 'U')) { 8642: # Grant temporary access 8643: my $then=$env{'user.login.time'}; 8644: my $update=$env{'user.update.time'}; 8645: if (!$update) { $update = $then; } 8646: my $refresh=$env{'user.refresh.time'}; 8647: if (!$refresh) { $refresh = $update; } 8648: my $now = time; 8649: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh, 8650: $now,'ca','constructaccess'); 8651: $ownerhome = &homeserver($ownername,$ownerdomain); 8652: return($ownername,$ownerdomain,$ownerhome); 8653: } 8654: # No business here 8655: return ''; 8656: } 8657: 8658: # ----------------------------------------------------------- Content Blocking 8659: 8660: { 8661: # Caches for faster Course Contents display where content blocking 8662: # is in operation (i.e., interval param set) for timed quiz. 8663: # 8664: # User for whom data are being temporarily cached. 8665: my $cacheduser=''; 8666: # Course for which data are being temporarily cached. 8667: my $cachedcid=''; 8668: # Cached blockers for this user (a hash of blocking items). 8669: my %cachedblockers=(); 8670: # When the data were last cached. 8671: my $cachedlast=''; 8672: 8673: sub load_all_blockers { 8674: my ($uname,$udom)=@_; 8675: if (($uname ne '') && ($udom ne '')) { 8676: if (($cacheduser eq $uname.':'.$udom) && 8677: ($cachedcid eq $env{'request.course.id'}) && 8678: (abs($cachedlast-time)<5)) { 8679: return; 8680: } 8681: } 8682: $cachedlast=time; 8683: $cacheduser=$uname.':'.$udom; 8684: $cachedcid=$env{'request.course.id'}; 8685: %cachedblockers = &get_commblock_resources(); 8686: return; 8687: } 8688: 8689: sub get_comm_blocks { 8690: my ($cdom,$cnum) = @_; 8691: if ($cdom eq '' || $cnum eq '') { 8692: return unless ($env{'request.course.id'}); 8693: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 8694: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8695: } 8696: my %commblocks; 8697: my $hashid=$cdom.'_'.$cnum; 8698: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid); 8699: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) { 8700: %commblocks = %{$blocksref}; 8701: } else { 8702: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum); 8703: my $cachetime = 600; 8704: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime); 8705: } 8706: return %commblocks; 8707: } 8708: 8709: sub get_commblock_resources { 8710: my ($blocks) = @_; 8711: my %blockers = (); 8712: return %blockers unless ($env{'request.course.id'}); 8713: return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); 8714: my %commblocks; 8715: if (ref($blocks) eq 'HASH') { 8716: %commblocks = %{$blocks}; 8717: } else { 8718: %commblocks = &get_comm_blocks(); 8719: } 8720: return %blockers unless (keys(%commblocks) > 0); 8721: my $navmap = Apache::lonnavmaps::navmap->new(); 8722: return %blockers unless (ref($navmap)); 8723: my $now = time; 8724: foreach my $block (keys(%commblocks)) { 8725: if ($block =~ /^(\d+)____(\d+)$/) { 8726: my ($start,$end) = ($1,$2); 8727: if ($start <= $now && $end >= $now) { 8728: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { 8729: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { 8730: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { 8731: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { 8732: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; 8733: } 8734: } 8735: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { 8736: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { 8737: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; 8738: } 8739: } 8740: } 8741: } 8742: } 8743: } elsif ($block =~ /^firstaccess____(.+)$/) { 8744: my $item = $1; 8745: my @to_test; 8746: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { 8747: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { 8748: my @interval; 8749: my $type = 'map'; 8750: if ($item eq 'course') { 8751: $type = 'course'; 8752: @interval=&EXT("resource.0.interval"); 8753: } else { 8754: if ($item =~ /___\d+___/) { 8755: $type = 'resource'; 8756: @interval=&EXT("resource.0.interval",$item); 8757: if (ref($navmap)) { 8758: my $res = $navmap->getBySymb($item); 8759: push(@to_test,$res); 8760: } 8761: } else { 8762: my $mapsymb = &symbread($item,1); 8763: if ($mapsymb) { 8764: if (ref($navmap)) { 8765: my $mapres = $navmap->getBySymb($mapsymb); 8766: @to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1); 8767: foreach my $res (@to_test) { 8768: my $symb = $res->symb(); 8769: next if ($symb eq $mapsymb); 8770: if ($symb ne '') { 8771: @interval=&EXT("resource.0.interval",$symb); 8772: if ($interval[1] eq 'map') { 8773: last; 8774: } 8775: } 8776: } 8777: } 8778: } 8779: } 8780: } 8781: if ($interval[0] =~ /^(\d+)/) { 8782: my $timelimit = $1; 8783: my $first_access; 8784: if ($type eq 'resource') { 8785: $first_access=&get_first_access($interval[1],$item); 8786: } elsif ($type eq 'map') { 8787: $first_access=&get_first_access($interval[1],undef,$item); 8788: } else { 8789: $first_access=&get_first_access($interval[1]); 8790: } 8791: if ($first_access) { 8792: my $timesup = $first_access+$timelimit; 8793: if ($timesup > $now) { 8794: my $activeblock; 8795: foreach my $res (@to_test) { 8796: if ($res->answerable()) { 8797: $activeblock = 1; 8798: last; 8799: } 8800: } 8801: if ($activeblock) { 8802: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { 8803: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { 8804: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; 8805: } 8806: } 8807: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { 8808: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { 8809: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; 8810: } 8811: } 8812: } 8813: } 8814: } 8815: } 8816: } 8817: } 8818: } 8819: } 8820: return %blockers; 8821: } 8822: 8823: sub has_comm_blocking { 8824: my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_; 8825: my @blockers; 8826: return unless ($env{'request.course.id'}); 8827: return unless ($priv eq 'bre'); 8828: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); 8829: return if ($env{'request.state'} eq 'construct'); 8830: my %blockinfo; 8831: if (ref($blocks) eq 'HASH') { 8832: %blockinfo = &get_commblock_resources($blocks); 8833: } else { 8834: &load_all_blockers($env{'user.name'},$env{'user.domain'}); 8835: %blockinfo = %cachedblockers; 8836: } 8837: return unless (keys(%blockinfo) > 0); 8838: my (%possibles,@symbs); 8839: if (!$symb) { 8840: $symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck); 8841: } 8842: if ($symb) { 8843: @symbs = ($symb); 8844: } elsif (keys(%possibles)) { 8845: @symbs = keys(%possibles); 8846: } 8847: my $noblock; 8848: foreach my $symb (@symbs) { 8849: last if ($noblock); 8850: my ($map,$resid,$resurl)=&decode_symb($symb); 8851: foreach my $block (keys(%blockinfo)) { 8852: if ($block =~ /^firstaccess____(.+)$/) { 8853: my $item = $1; 8854: unless ($blocked) { 8855: if (($item eq $map) || ($item eq $symb)) { 8856: $noblock = 1; 8857: last; 8858: } 8859: } 8860: } 8861: if (ref($blockinfo{$block}) eq 'HASH') { 8862: if (ref($blockinfo{$block}{'resources'}) eq 'HASH') { 8863: if ($blockinfo{$block}{'resources'}{$symb}) { 8864: unless (grep(/^\Q$block\E$/,@blockers)) { 8865: push(@blockers,$block); 8866: } 8867: } 8868: } 8869: if (ref($blockinfo{$block}{'maps'}) eq 'HASH') { 8870: if ($blockinfo{$block}{'maps'}{$map}) { 8871: unless (grep(/^\Q$block\E$/,@blockers)) { 8872: push(@blockers,$block); 8873: } 8874: } 8875: } 8876: } 8877: } 8878: } 8879: unless ($noblock) { 8880: return @blockers; 8881: } 8882: return; 8883: } 8884: } 8885: 8886: sub deeplink_check { 8887: my ($priv,$symb,$uri) = @_; 8888: return unless ($env{'request.course.id'}); 8889: return unless ($priv eq 'bre'); 8890: return if ($env{'request.state'} eq 'construct'); 8891: return if ($env{'request.role.adv'}); 8892: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 8893: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 8894: my (%possibles,@symbs); 8895: if (!$symb) { 8896: $symb = &symbread($uri,1,1,1,\%possibles); 8897: } 8898: if ($symb) { 8899: @symbs = ($symb); 8900: } elsif (keys(%possibles)) { 8901: @symbs = keys(%possibles); 8902: } 8903: 8904: my ($login,$switchrole,$allow); 8905: if ($env{'request.deeplink.login'} =~ m{^\Q/tiny/$cdom/\E(\w+)$}) { 8906: my $key = $1; 8907: my $tinyurl; 8908: my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$cdom."\0".$key); 8909: if (defined($cached)) { 8910: $tinyurl = $result; 8911: } else { 8912: my $configuname = &Apache::lonnet::get_domainconfiguser($cdom); 8913: my %currtiny = &Apache::lonnet::get('tiny',[$key],$cdom,$configuname); 8914: if ($currtiny{$key} ne '') { 8915: $tinyurl = $currtiny{$key}; 8916: &Apache::lonnet::do_cache_new('tiny',$cdom."\0".$key,$currtiny{$key},600); 8917: } 8918: } 8919: if ($tinyurl ne '') { 8920: my ($cnumreq,$posslogin) = split(/\&/,$tinyurl); 8921: if ($cnumreq eq $cnum) { 8922: $login = $posslogin; 8923: } else { 8924: $switchrole = 1; 8925: } 8926: } 8927: } 8928: foreach my $symb (@symbs) { 8929: last if ($allow); 8930: my $deeplink = &EXT("resource.0.deeplink",$symb); 8931: if ($deeplink eq '') { 8932: $allow = 1; 8933: } else { 8934: my ($listed,$scope,$access) = split(/,/,$deeplink); 8935: if ($access eq 'any') { 8936: $allow = 1; 8937: } elsif ($login) { 8938: if ($access eq 'only') { 8939: if ($scope eq 'res') { 8940: if ($symb eq $login) { 8941: $allow = 1; 8942: } 8943: } elsif ($scope eq 'map') { 8944: #FIXME Compare map for $env{'request.deeplink.login'} with map for $symb 8945: } elsif ($scope eq 'rec') { 8946: #FIXME Recurse up for $env{'request.deeplink.login'} with map for $symb 8947: } 8948: } else { 8949: my ($acctype,$item) = split(/:/,$access); 8950: if (($acctype eq 'lti') && ($env{'user.linkprotector'})) { 8951: if (grep(/^\Q$item\E$/,split(/,/,$env{'user.linkprotector'}))) { 8952: my %tinyurls = &get('tiny',[$symb],$cdom,$cnum); 8953: if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.linkproturis'}))) { 8954: $allow = 1; 8955: } 8956: } 8957: } elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) { 8958: if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) { 8959: my %tinyurls = &get('tiny',[$symb],$cdom,$cnum); 8960: if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.keyedlinkuri'}))) { 8961: $allow = 1; 8962: } 8963: } 8964: } 8965: } 8966: } 8967: } 8968: } 8969: return if ($allow); 8970: return 1; 8971: } 8972: 8973: # -------------------------------- Deversion and split uri into path an filename 8974: 8975: # 8976: # Removes the version from a URI and 8977: # splits it in to its filename and path to the filename. 8978: # Seems like File::Basename could have done this more clearly. 8979: # Parameters: 8980: # $uri - input URI 8981: # Returns: 8982: # Two element list consisting of 8983: # $pathname - the URI up to and excluding the trailing / 8984: # $filename - The part of the URI following the last / 8985: # NOTE: 8986: # Another realization of this is simply: 8987: # use File::Basename; 8988: # ... 8989: # $uri = shift; 8990: # $filename = basename($uri); 8991: # $path = dirname($uri); 8992: # return ($filename, $path); 8993: # 8994: # The implementation below is probably faster however. 8995: # 8996: sub split_uri_for_cond { 8997: my $uri=&deversion(&declutter(shift)); 8998: my @uriparts=split(/\//,$uri); 8999: my $filename=pop(@uriparts); 9000: my $pathname=join('/',@uriparts); 9001: return ($pathname,$filename); 9002: } 9003: # --------------------------------------------------- Is a resource on the map? 9004: 9005: sub is_on_map { 9006: my ($pathname,$filename) = &split_uri_for_cond(shift); 9007: #Trying to find the conditional for the file 9008: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~ 9009: /\&\Q$filename\E\:([\d\|]+)\&/); 9010: if ($match) { 9011: return (1,$1); 9012: } else { 9013: return (0,0); 9014: } 9015: } 9016: 9017: # --------------------------------------------------------- Get symb from alias 9018: 9019: sub get_symb_from_alias { 9020: my $symb=shift; 9021: my ($map,$resid,$url)=&decode_symb($symb); 9022: # Already is a symb 9023: if ($url) { return $symb; } 9024: # Must be an alias 9025: my $aliassymb=''; 9026: my %bighash; 9027: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 9028: &GDBM_READER(),0640)) { 9029: my $rid=$bighash{'mapalias_'.$symb}; 9030: if ($rid) { 9031: my ($mapid,$resid)=split(/\./,$rid); 9032: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid}, 9033: $resid,$bighash{'src_'.$rid}); 9034: } 9035: untie %bighash; 9036: } 9037: return $aliassymb; 9038: } 9039: 9040: # ----------------------------------------------------------------- Define Role 9041: 9042: sub definerole { 9043: if (allowed('mcr','/')) { 9044: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_; 9045: foreach my $role (split(':',$sysrole)) { 9046: my ($crole,$cqual)=split(/\&/,$role); 9047: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; } 9048: if ($pr{'cr:s'}=~/\Q$crole\E\&/) { 9049: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { 9050: return "refused:s:$crole&$cqual"; 9051: } 9052: } 9053: } 9054: foreach my $role (split(':',$domrole)) { 9055: my ($crole,$cqual)=split(/\&/,$role); 9056: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; } 9057: if ($pr{'cr:d'}=~/\Q$crole\E\&/) { 9058: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) { 9059: return "refused:d:$crole&$cqual"; 9060: } 9061: } 9062: } 9063: foreach my $role (split(':',$courole)) { 9064: my ($crole,$cqual)=split(/\&/,$role); 9065: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; } 9066: if ($pr{'cr:c'}=~/\Q$crole\E\&/) { 9067: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { 9068: return "refused:c:$crole&$cqual"; 9069: } 9070: } 9071: } 9072: my $uhome; 9073: if (($uname ne '') && ($udom ne '')) { 9074: $uhome = &homeserver($uname,$udom); 9075: return $uhome if ($uhome eq 'no_host'); 9076: } else { 9077: $uname = $env{'user.name'}; 9078: $udom = $env{'user.domain'}; 9079: $uhome = $env{'user.home'}; 9080: } 9081: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". 9082: "$udom:$uname:rolesdef_$rolename=". 9083: escape($sysrole.'_'.$domrole.'_'.$courole); 9084: return reply($command,$uhome); 9085: } else { 9086: return 'refused'; 9087: } 9088: } 9089: 9090: # ---------------- Make a metadata query against the network of library servers 9091: 9092: sub metadata_query { 9093: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_; 9094: my %rhash; 9095: my %libserv = &all_library(); 9096: my @server_list = (defined($server_array) ? @$server_array 9097: : keys(%libserv) ); 9098: for my $server (@server_list) { 9099: my $domains = ''; 9100: if (ref($domains_hash) eq 'HASH') { 9101: $domains = $domains_hash->{$server}; 9102: } 9103: unless ($custom or $customshow) { 9104: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server); 9105: $rhash{$server}=$reply; 9106: } 9107: else { 9108: my $reply=&reply("querysend:".&escape($query).':'. 9109: &escape($custom).':'.&escape($customshow).':'.&escape($domains), 9110: $server); 9111: $rhash{$server}=$reply; 9112: } 9113: } 9114: return \%rhash; 9115: } 9116: 9117: # ----------------------------------------- Send log queries and wait for reply 9118: 9119: sub log_query { 9120: my ($uname,$udom,$query,%filters)=@_; 9121: my $uhome=&homeserver($uname,$udom); 9122: if ($uhome eq 'no_host') { return 'error: no_host'; } 9123: my $uhost=&hostname($uhome); 9124: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters))); 9125: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command, 9126: $uhome); 9127: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; } 9128: return get_query_reply($queryid); 9129: } 9130: 9131: # -------------------------- Update MySQL table for portfolio file 9132: 9133: sub update_portfolio_table { 9134: my ($uname,$udom,$file_name,$query,$group,$action) = @_; 9135: if ($group ne '') { 9136: $file_name =~s /^\Q$group\E//; 9137: } 9138: my $homeserver = &homeserver($uname,$udom); 9139: my $queryid= 9140: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group). 9141: ':'.&escape($file_name).':'.$action,$homeserver); 9142: my $reply = &get_query_reply($queryid); 9143: return $reply; 9144: } 9145: 9146: # -------------------------- Update MySQL allusers table 9147: 9148: sub update_allusers_table { 9149: my ($uname,$udom,$names) = @_; 9150: my $homeserver = &homeserver($uname,$udom); 9151: my $queryid= 9152: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'. 9153: 'lastname='.&escape($names->{'lastname'}).'%%'. 9154: 'firstname='.&escape($names->{'firstname'}).'%%'. 9155: 'middlename='.&escape($names->{'middlename'}).'%%'. 9156: 'generation='.&escape($names->{'generation'}).'%%'. 9157: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'. 9158: 'id='.&escape($names->{'id'}),$homeserver); 9159: return; 9160: } 9161: 9162: # ------- Request retrieval of institutional classlists for course(s) 9163: 9164: sub fetch_enrollment_query { 9165: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_; 9166: my ($homeserver,$sleep,$loopmax); 9167: my $maxtries = 1; 9168: if ($context eq 'automated') { 9169: $homeserver = $perlvar{'lonHostID'}; 9170: $sleep = 2; 9171: $loopmax = 100; 9172: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout 9173: } else { 9174: $homeserver = &homeserver($cnum,$dom); 9175: } 9176: my $host=&hostname($homeserver); 9177: my $cmd = ''; 9178: foreach my $affiliate (keys(%{$affiliatesref})) { 9179: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; 9180: } 9181: $cmd =~ s/%%$//; 9182: $cmd = &escape($cmd); 9183: my $query = 'fetchenrollment'; 9184: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver); 9185: unless ($queryid=~/^\Q$host\E\_/) { 9186: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum); 9187: return 'error: '.$queryid; 9188: } 9189: my $reply = &get_query_reply($queryid,$sleep,$loopmax); 9190: my $tries = 1; 9191: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 9192: $reply = &get_query_reply($queryid,$sleep,$loopmax); 9193: $tries ++; 9194: } 9195: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 9196: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); 9197: } else { 9198: my @responses = split(/:/,$reply); 9199: if (grep { $_ eq $homeserver } &current_machine_ids()) { 9200: foreach my $line (@responses) { 9201: my ($key,$value) = split(/=/,$line,2); 9202: $$replyref{$key} = $value; 9203: } 9204: } else { 9205: my $pathname = LONCAPA::tempdir(); 9206: foreach my $line (@responses) { 9207: my ($key,$value) = split(/=/,$line); 9208: $$replyref{$key} = $value; 9209: if ($value > 0) { 9210: foreach my $item (@{$$affiliatesref{$key}}) { 9211: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml'; 9212: my $destname = $pathname.'/'.$filename; 9213: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver); 9214: if ($xml_classlist =~ /^error/) { 9215: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum); 9216: } else { 9217: if ( open(FILE,">",$destname) ) { 9218: print FILE &unescape($xml_classlist); 9219: close(FILE); 9220: } else { 9221: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum); 9222: } 9223: } 9224: } 9225: } 9226: } 9227: } 9228: return 'ok'; 9229: } 9230: return 'error'; 9231: } 9232: 9233: sub get_query_reply { 9234: my ($queryid,$sleep,$loopmax) = @_;; 9235: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) { 9236: $sleep = 0.2; 9237: } 9238: if (($loopmax eq '') || ($loopmax =~ /\D/)) { 9239: $loopmax = 100; 9240: } 9241: my $replyfile=LONCAPA::tempdir().$queryid; 9242: my $reply=''; 9243: for (1..$loopmax) { 9244: sleep($sleep); 9245: if (-e $replyfile.'.end') { 9246: if (open(my $fh,"<",$replyfile)) { 9247: $reply = join('',<$fh>); 9248: close($fh); 9249: } else { return 'error: reply_file_error'; } 9250: return &unescape($reply); 9251: } 9252: } 9253: return 'timeout:'.$queryid; 9254: } 9255: 9256: sub courselog_query { 9257: # 9258: # possible filters: 9259: # url: url or symb 9260: # username 9261: # domain 9262: # action: view, submit, grade 9263: # start: timestamp 9264: # end: timestamp 9265: # 9266: my (%filters)=@_; 9267: unless ($env{'request.course.id'}) { return 'no_course'; } 9268: if ($filters{'url'}) { 9269: $filters{'url'}=&symbclean(&declutter($filters{'url'})); 9270: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/; 9271: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/; 9272: } 9273: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'}; 9274: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; 9275: return &log_query($cname,$cdom,'courselog',%filters); 9276: } 9277: 9278: sub userlog_query { 9279: # 9280: # possible filters: 9281: # action: log check role 9282: # start: timestamp 9283: # end: timestamp 9284: # 9285: my ($uname,$udom,%filters)=@_; 9286: return &log_query($uname,$udom,'userlog',%filters); 9287: } 9288: 9289: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course 9290: 9291: sub auto_run { 9292: my ($cnum,$cdom) = @_; 9293: my $response = 0; 9294: my $settings; 9295: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom); 9296: if (ref($domconfig{'autoenroll'}) eq 'HASH') { 9297: $settings = $domconfig{'autoenroll'}; 9298: if ($settings->{'run'} eq '1') { 9299: $response = 1; 9300: } 9301: } else { 9302: my $homeserver; 9303: if (&is_course($cdom,$cnum)) { 9304: $homeserver = &homeserver($cnum,$cdom); 9305: } else { 9306: $homeserver = &domain($cdom,'primary'); 9307: } 9308: if ($homeserver ne 'no_host') { 9309: $response = &reply('autorun:'.$cdom,$homeserver); 9310: } 9311: } 9312: return $response; 9313: } 9314: 9315: sub auto_get_sections { 9316: my ($cnum,$cdom,$inst_coursecode) = @_; 9317: my $homeserver; 9318: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 9319: $homeserver = &homeserver($cnum,$cdom); 9320: } 9321: if (!defined($homeserver)) { 9322: if ($cdom =~ /^$match_domain$/) { 9323: $homeserver = &domain($cdom,'primary'); 9324: } 9325: } 9326: my @secs; 9327: if (defined($homeserver)) { 9328: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver)); 9329: unless ($response eq 'refused') { 9330: @secs = split(/:/,$response); 9331: } 9332: } 9333: return @secs; 9334: } 9335: 9336: sub auto_new_course { 9337: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_; 9338: my $homeserver = &homeserver($cnum,$cdom); 9339: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver)); 9340: return $response; 9341: } 9342: 9343: sub auto_validate_courseID { 9344: my ($cnum,$cdom,$inst_course_id) = @_; 9345: my $homeserver = &homeserver($cnum,$cdom); 9346: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver)); 9347: return $response; 9348: } 9349: 9350: sub auto_validate_instcode { 9351: my ($cnum,$cdom,$instcode,$owner) = @_; 9352: my ($homeserver,$response); 9353: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 9354: $homeserver = &homeserver($cnum,$cdom); 9355: } 9356: if (!defined($homeserver)) { 9357: if ($cdom =~ /^$match_domain$/) { 9358: $homeserver = &domain($cdom,'primary'); 9359: } 9360: } 9361: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'. 9362: &escape($instcode).':'.&escape($owner),$homeserver)); 9363: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3); 9364: return ($outcome,$description,$defaultcredits); 9365: } 9366: 9367: sub auto_create_password { 9368: my ($cnum,$cdom,$authparam,$udom) = @_; 9369: my ($homeserver,$response); 9370: my $create_passwd = 0; 9371: my $authchk = ''; 9372: if ($udom =~ /^$match_domain$/) { 9373: $homeserver = &domain($udom,'primary'); 9374: } 9375: if ($homeserver eq '') { 9376: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { 9377: $homeserver = &homeserver($cnum,$cdom); 9378: } 9379: } 9380: if ($homeserver eq '') { 9381: $authchk = 'nodomain'; 9382: } else { 9383: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver)); 9384: if ($response eq 'refused') { 9385: $authchk = 'refused'; 9386: } else { 9387: ($authparam,$create_passwd,$authchk) = split(/:/,$response); 9388: } 9389: } 9390: return ($authparam,$create_passwd,$authchk); 9391: } 9392: 9393: sub auto_photo_permission { 9394: my ($cnum,$cdom,$students) = @_; 9395: my $homeserver = &homeserver($cnum,$cdom); 9396: my ($outcome,$perm_reqd,$conditions) = 9397: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3); 9398: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 9399: return (undef,undef); 9400: } 9401: return ($outcome,$perm_reqd,$conditions); 9402: } 9403: 9404: sub auto_checkphotos { 9405: my ($uname,$udom,$pid) = @_; 9406: my $homeserver = &homeserver($uname,$udom); 9407: my ($result,$resulttype); 9408: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'. 9409: &escape($uname).':'.&escape($pid), 9410: $homeserver)); 9411: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 9412: return (undef,undef); 9413: } 9414: if ($outcome) { 9415: ($result,$resulttype) = split(/:/,$outcome); 9416: } 9417: return ($result,$resulttype); 9418: } 9419: 9420: sub auto_photochoice { 9421: my ($cnum,$cdom) = @_; 9422: my $homeserver = &homeserver($cnum,$cdom); 9423: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'. 9424: &escape($cdom), 9425: $homeserver))); 9426: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) { 9427: return (undef,undef); 9428: } 9429: return ($update,$comment); 9430: } 9431: 9432: sub auto_photoupdate { 9433: my ($affiliatesref,$dom,$cnum,$photo) = @_; 9434: my $homeserver = &homeserver($cnum,$dom); 9435: my $host=&hostname($homeserver); 9436: my $cmd = ''; 9437: my $maxtries = 1; 9438: foreach my $affiliate (keys(%{$affiliatesref})) { 9439: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; 9440: } 9441: $cmd =~ s/%%$//; 9442: $cmd = &escape($cmd); 9443: my $query = 'institutionalphotos'; 9444: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver); 9445: unless ($queryid=~/^\Q$host\E\_/) { 9446: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum); 9447: return 'error: '.$queryid; 9448: } 9449: my $reply = &get_query_reply($queryid); 9450: my $tries = 1; 9451: while (($reply=~/^timeout/) && ($tries < $maxtries)) { 9452: $reply = &get_query_reply($queryid); 9453: $tries ++; 9454: } 9455: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { 9456: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); 9457: } else { 9458: my @responses = split(/:/,$reply); 9459: my $outcome = shift(@responses); 9460: foreach my $item (@responses) { 9461: my ($key,$value) = split(/=/,$item); 9462: $$photo{$key} = $value; 9463: } 9464: return $outcome; 9465: } 9466: return 'error'; 9467: } 9468: 9469: sub auto_instcode_format { 9470: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles, 9471: $cat_order) = @_; 9472: my $courses = ''; 9473: my @homeservers; 9474: if ($caller eq 'global') { 9475: my %servers = &get_servers($codedom,'library'); 9476: foreach my $tryserver (keys(%servers)) { 9477: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 9478: push(@homeservers,$tryserver); 9479: } 9480: } 9481: } elsif ($caller eq 'requests') { 9482: if ($codedom =~ /^$match_domain$/) { 9483: my $chome = &domain($codedom,'primary'); 9484: unless ($chome eq 'no_host') { 9485: push(@homeservers,$chome); 9486: } 9487: } 9488: } else { 9489: push(@homeservers,&homeserver($caller,$codedom)); 9490: } 9491: foreach my $code (keys(%{$instcodes})) { 9492: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&'; 9493: } 9494: chop($courses); 9495: my $ok_response = 0; 9496: my $response; 9497: while (@homeservers > 0 && $ok_response == 0) { 9498: my $server = shift(@homeservers); 9499: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server); 9500: if ($response !~ /(con_lost|error|no_such_host|refused)/) { 9501: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) = 9502: split(/:/,$response); 9503: %{$codes} = (%{$codes},&str2hash($codes_str)); 9504: push(@{$codetitles},&str2array($codetitles_str)); 9505: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str)); 9506: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str)); 9507: $ok_response = 1; 9508: } 9509: } 9510: if ($ok_response) { 9511: return 'ok'; 9512: } else { 9513: return $response; 9514: } 9515: } 9516: 9517: sub auto_instcode_defaults { 9518: my ($domain,$returnhash,$code_order) = @_; 9519: my @homeservers; 9520: 9521: my %servers = &get_servers($domain,'library'); 9522: foreach my $tryserver (keys(%servers)) { 9523: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 9524: push(@homeservers,$tryserver); 9525: } 9526: } 9527: 9528: my $response; 9529: foreach my $server (@homeservers) { 9530: $response=&reply('autoinstcodedefaults:'.$domain,$server); 9531: next if ($response =~ /(con_lost|error|no_such_host|refused)/); 9532: 9533: foreach my $pair (split(/\&/,$response)) { 9534: my ($name,$value)=split(/\=/,$pair); 9535: if ($name eq 'code_order') { 9536: @{$code_order} = split(/\&/,&unescape($value)); 9537: } else { 9538: $returnhash->{&unescape($name)}=&unescape($value); 9539: } 9540: } 9541: return 'ok'; 9542: } 9543: 9544: return $response; 9545: } 9546: 9547: sub auto_possible_instcodes { 9548: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_; 9549: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') && 9550: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { 9551: return; 9552: } 9553: my (@homeservers,$uhome); 9554: if (defined(&domain($domain,'primary'))) { 9555: $uhome=&domain($domain,'primary'); 9556: push(@homeservers,&domain($domain,'primary')); 9557: } else { 9558: my %servers = &get_servers($domain,'library'); 9559: foreach my $tryserver (keys(%servers)) { 9560: if (!grep(/^\Q$tryserver\E$/,@homeservers)) { 9561: push(@homeservers,$tryserver); 9562: } 9563: } 9564: } 9565: my $response; 9566: foreach my $server (@homeservers) { 9567: $response=&reply('autopossibleinstcodes:'.$domain,$server); 9568: next if ($response =~ /(con_lost|error|no_such_host|refused)/); 9569: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) = 9570: split(':',$response); 9571: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr)); 9572: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr)); 9573: foreach my $item (split('&',$cat_title)) { 9574: my ($name,$value)=split('=',$item); 9575: $cat_titles->{&unescape($name)}=&thaw_unescape($value); 9576: } 9577: foreach my $item (split('&',$cat_order)) { 9578: my ($name,$value)=split('=',$item); 9579: $cat_orders->{&unescape($name)}=&thaw_unescape($value); 9580: } 9581: return 'ok'; 9582: } 9583: return $response; 9584: } 9585: 9586: sub auto_courserequest_checks { 9587: my ($dom) = @_; 9588: my ($homeserver,%validations); 9589: if ($dom =~ /^$match_domain$/) { 9590: $homeserver = &domain($dom,'primary'); 9591: } 9592: unless ($homeserver eq 'no_host') { 9593: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver); 9594: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 9595: my @items = split(/&/,$response); 9596: foreach my $item (@items) { 9597: my ($key,$value) = split('=',$item); 9598: $validations{&unescape($key)} = &thaw_unescape($value); 9599: } 9600: } 9601: } 9602: return %validations; 9603: } 9604: 9605: sub auto_courserequest_validation { 9606: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_; 9607: my ($homeserver,$response); 9608: if ($dom =~ /^$match_domain$/) { 9609: $homeserver = &domain($dom,'primary'); 9610: } 9611: unless ($homeserver eq 'no_host') { 9612: my $customdata; 9613: if (ref($custominfo) eq 'HASH') { 9614: $customdata = &freeze_escape($custominfo); 9615: } 9616: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner). 9617: ':'.&escape($crstype).':'.&escape($inststatuslist). 9618: ':'.&escape($instcode).':'.&escape($instseclist).':'. 9619: $customdata,$homeserver)); 9620: } 9621: return $response; 9622: } 9623: 9624: sub auto_validate_class_sec { 9625: my ($cdom,$cnum,$owners,$inst_class) = @_; 9626: my $homeserver = &homeserver($cnum,$cdom); 9627: my $ownerlist; 9628: if (ref($owners) eq 'ARRAY') { 9629: $ownerlist = join(',',@{$owners}); 9630: } else { 9631: $ownerlist = $owners; 9632: } 9633: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'. 9634: &escape($ownerlist).':'.$cdom,$homeserver); 9635: return $response; 9636: } 9637: 9638: sub auto_validate_instclasses { 9639: my ($cdom,$cnum,$owners,$classesref) = @_; 9640: my ($homeserver,%validations); 9641: $homeserver = &homeserver($cnum,$cdom); 9642: unless ($homeserver eq 'no_host') { 9643: my $ownerlist; 9644: if (ref($owners) eq 'ARRAY') { 9645: $ownerlist = join(',',@{$owners}); 9646: } else { 9647: $ownerlist = $owners; 9648: } 9649: if (ref($classesref) eq 'HASH') { 9650: my $classes = &freeze_escape($classesref); 9651: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist). 9652: ':'.$cdom.':'.$classes,$homeserver); 9653: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 9654: my @items = split(/&/,$response); 9655: foreach my $item (@items) { 9656: my ($key,$value) = split('=',$item); 9657: $validations{&unescape($key)} = &thaw_unescape($value); 9658: } 9659: } 9660: } 9661: } 9662: return %validations; 9663: } 9664: 9665: sub auto_crsreq_update { 9666: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title, 9667: $code,$accessstart,$accessend,$inbound) = @_; 9668: my ($homeserver,%crsreqresponse); 9669: if ($cdom =~ /^$match_domain$/) { 9670: $homeserver = &domain($cdom,'primary'); 9671: } 9672: unless (($homeserver eq 'no_host') || ($homeserver eq '')) { 9673: my $info; 9674: if (ref($inbound) eq 'HASH') { 9675: $info = &freeze_escape($inbound); 9676: } 9677: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype). 9678: ':'.&escape($action).':'.&escape($ownername).':'. 9679: &escape($ownerdomain).':'.&escape($fullname).':'. 9680: &escape($title).':'.&escape($code).':'. 9681: &escape($accessstart).':'.&escape($accessend).':'.$info, 9682: $homeserver); 9683: unless ($response =~ /(con_lost|error|no_such_host|refused)/) { 9684: my @items = split(/&/,$response); 9685: foreach my $item (@items) { 9686: my ($key,$value) = split('=',$item); 9687: $crsreqresponse{&unescape($key)} = &thaw_unescape($value); 9688: } 9689: } 9690: } 9691: return \%crsreqresponse; 9692: } 9693: 9694: sub auto_export_grades { 9695: my ($cdom,$cnum,$inforef,$gradesref) = @_; 9696: my ($homeserver,%exportresponse); 9697: if ($cdom =~ /^$match_domain$/) { 9698: $homeserver = &domain($cdom,'primary'); 9699: } 9700: unless (($homeserver eq 'no_host') || ($homeserver eq '')) { 9701: my $info; 9702: if (ref($inforef) eq 'HASH') { 9703: $info = &freeze_escape($inforef); 9704: } 9705: if (ref($gradesref) eq 'HASH') { 9706: my $grades = &freeze_escape($gradesref); 9707: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'. 9708: $info.':'.$grades,$homeserver); 9709: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) { 9710: my @items = split(/&/,$response); 9711: foreach my $item (@items) { 9712: my ($key,$value) = split('=',$item); 9713: $exportresponse{&unescape($key)} = &thaw_unescape($value); 9714: } 9715: } 9716: } 9717: } 9718: return \%exportresponse; 9719: } 9720: 9721: sub check_instcode_cloning { 9722: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_; 9723: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { 9724: return; 9725: } 9726: my $canclone; 9727: if (@{$code_order} > 0) { 9728: my $instcoderegexp ='^'; 9729: my @clonecodes = split(/\&/,$cloner); 9730: foreach my $item (@{$code_order}) { 9731: if (grep(/^\Q$item\E=/,@clonecodes)) { 9732: foreach my $pair (@clonecodes) { 9733: my ($key,$val) = split(/\=/,$pair,2); 9734: $val = &unescape($val); 9735: if ($key eq $item) { 9736: $instcoderegexp .= '('.$val.')'; 9737: last; 9738: } 9739: } 9740: } else { 9741: $instcoderegexp .= $codedefaults->{$item}; 9742: } 9743: } 9744: $instcoderegexp .= '$'; 9745: my (@from,@to); 9746: eval { 9747: (@from) = ($clonefromcode =~ /$instcoderegexp/); 9748: (@to) = ($clonetocode =~ /$instcoderegexp/); 9749: }; 9750: if ((@from > 0) && (@to > 0)) { 9751: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); 9752: if (!@diffs) { 9753: $canclone = 1; 9754: } 9755: } 9756: } 9757: return $canclone; 9758: } 9759: 9760: sub default_instcode_cloning { 9761: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_; 9762: my (%codedefaults,@code_order,$canclone); 9763: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) { 9764: %codedefaults = %{$codedefaultsref}; 9765: @code_order = @{$codeorderref}; 9766: } elsif ($clonedom) { 9767: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order); 9768: } 9769: if (($domdefclone) && (@code_order)) { 9770: my @clonecodes = split(/\+/,$domdefclone); 9771: my $instcoderegexp ='^'; 9772: foreach my $item (@code_order) { 9773: if (grep(/^\Q$item\E$/,@clonecodes)) { 9774: $instcoderegexp .= '('.$codedefaults{$item}.')'; 9775: } else { 9776: $instcoderegexp .= $codedefaults{$item}; 9777: } 9778: } 9779: $instcoderegexp .= '$'; 9780: my (@from,@to); 9781: eval { 9782: (@from) = ($clonefromcode =~ /$instcoderegexp/); 9783: (@to) = ($clonetocode =~ /$instcoderegexp/); 9784: }; 9785: if ((@from > 0) && (@to > 0)) { 9786: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); 9787: if (!@diffs) { 9788: $canclone = 1; 9789: } 9790: } 9791: } 9792: return $canclone; 9793: } 9794: 9795: # ------------------------------------------------------- Course Group routines 9796: 9797: sub get_coursegroups { 9798: my ($cdom,$cnum,$group,$namespace) = @_; 9799: return(&dump($namespace,$cdom,$cnum,$group)); 9800: } 9801: 9802: sub modify_coursegroup { 9803: my ($cdom,$cnum,$groupsettings) = @_; 9804: return(&put('coursegroups',$groupsettings,$cdom,$cnum)); 9805: } 9806: 9807: sub toggle_coursegroup_status { 9808: my ($cdom,$cnum,$group,$action) = @_; 9809: my ($from_namespace,$to_namespace); 9810: if ($action eq 'delete') { 9811: $from_namespace = 'coursegroups'; 9812: $to_namespace = 'deleted_groups'; 9813: } else { 9814: $from_namespace = 'deleted_groups'; 9815: $to_namespace = 'coursegroups'; 9816: } 9817: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace); 9818: if (my $tmp = &error(%curr_group)) { 9819: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom); 9820: return ('read error',$tmp); 9821: } else { 9822: my %savedsettings = %curr_group; 9823: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum); 9824: my $deloutcome; 9825: if ($result eq 'ok') { 9826: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum); 9827: } else { 9828: return ('write error',$result); 9829: } 9830: if ($deloutcome eq 'ok') { 9831: return 'ok'; 9832: } else { 9833: return ('delete error',$deloutcome); 9834: } 9835: } 9836: } 9837: 9838: sub modify_group_roles { 9839: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_; 9840: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id; 9841: my $role = 'gr/'.&escape($userprivs); 9842: my ($uname,$udom) = split(/:/,$user); 9843: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context); 9844: if ($result eq 'ok') { 9845: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum); 9846: } 9847: return $result; 9848: } 9849: 9850: sub modify_coursegroup_membership { 9851: my ($cdom,$cnum,$membership) = @_; 9852: my $result = &put('groupmembership',$membership,$cdom,$cnum); 9853: return $result; 9854: } 9855: 9856: sub get_active_groups { 9857: my ($udom,$uname,$cdom,$cnum) = @_; 9858: my $now = time; 9859: my %groups = (); 9860: foreach my $key (keys(%env)) { 9861: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) { 9862: my ($start,$end) = split(/\./,$env{$key}); 9863: if (($end!=0) && ($end<$now)) { next; } 9864: if (($start!=0) && ($start>$now)) { next; } 9865: if ($1 eq $cdom && $2 eq $cnum) { 9866: $groups{$3} = $env{$key} ; 9867: } 9868: } 9869: } 9870: return %groups; 9871: } 9872: 9873: sub get_group_membership { 9874: my ($cdom,$cnum,$group) = @_; 9875: return(&dump('groupmembership',$cdom,$cnum,$group)); 9876: } 9877: 9878: sub get_users_groups { 9879: my ($udom,$uname,$courseid) = @_; 9880: my @usersgroups; 9881: my $cachetime=1800; 9882: 9883: my $hashid="$udom:$uname:$courseid"; 9884: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid); 9885: if (defined($cached)) { 9886: @usersgroups = split(/:/,$grouplist); 9887: } else { 9888: $grouplist = ''; 9889: my $courseurl = &courseid_to_courseurl($courseid); 9890: my %roleshash = &dump('roles',$udom,$uname,$courseurl); 9891: my $access_end = $env{'course.'.$courseid. 9892: '.default_enrollment_end_date'}; 9893: my $now = time; 9894: foreach my $key (keys(%roleshash)) { 9895: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) { 9896: my $group = $1; 9897: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) { 9898: my $start = $2; 9899: my $end = $1; 9900: if ($start == -1) { next; } # deleted from group 9901: if (($start!=0) && ($start>$now)) { next; } 9902: if (($end!=0) && ($end<$now)) { 9903: if ($access_end && $access_end < $now) { 9904: if ($access_end - $end < 86400) { 9905: push(@usersgroups,$group); 9906: } 9907: } 9908: next; 9909: } 9910: push(@usersgroups,$group); 9911: } 9912: } 9913: } 9914: @usersgroups = &sort_course_groups($courseid,@usersgroups); 9915: $grouplist = join(':',@usersgroups); 9916: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime); 9917: } 9918: return @usersgroups; 9919: } 9920: 9921: sub devalidate_getgroups_cache { 9922: my ($udom,$uname,$cdom,$cnum)=@_; 9923: my $courseid = $cdom.'_'.$cnum; 9924: 9925: my $hashid="$udom:$uname:$courseid"; 9926: &devalidate_cache_new('getgroups',$hashid); 9927: } 9928: 9929: # ------------------------------------------------------------------ Plain Text 9930: 9931: sub plaintext { 9932: my ($short,$type,$cid,$forcedefault) = @_; 9933: if ($short =~ m{^cr/}) { 9934: return (split('/',$short))[-1]; 9935: } 9936: if (!defined($cid)) { 9937: $cid = $env{'request.course.id'}; 9938: } 9939: my %rolenames = ( 9940: Course => 'std', 9941: Community => 'alt1', 9942: Placement => 'std', 9943: ); 9944: if ($cid ne '') { 9945: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') { 9946: unless ($forcedefault) { 9947: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'}; 9948: &Apache::lonlocal::mt_escape(\$roletext); 9949: return &Apache::lonlocal::mt($roletext); 9950: } 9951: } 9952: } 9953: if ((defined($type)) && (defined($rolenames{$type})) && 9954: (defined($rolenames{$type})) && 9955: (defined($prp{$short}{$rolenames{$type}}))) { 9956: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}}); 9957: } elsif ($cid ne '') { 9958: my $crstype = $env{'course.'.$cid.'.type'}; 9959: if (($crstype ne '') && (defined($rolenames{$crstype})) && 9960: (defined($prp{$short}{$rolenames{$crstype}}))) { 9961: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}}); 9962: } 9963: } 9964: return &Apache::lonlocal::mt($prp{$short}{'std'}); 9965: } 9966: 9967: # ----------------------------------------------------------------- Assign Role 9968: 9969: sub assignrole { 9970: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll, 9971: $context)=@_; 9972: my $mrole; 9973: if ($role =~ /^cr\//) { 9974: my $cwosec=$url; 9975: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; 9976: unless (&allowed('ccr',$cwosec)) { 9977: my $refused = 1; 9978: if ($context eq 'requestcourses') { 9979: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { 9980: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) { 9981: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) { 9982: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); 9983: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 9984: if ($crsenv{'internal.courseowner'} eq 9985: $env{'user.name'}.':'.$env{'user.domain'}) { 9986: $refused = ''; 9987: } 9988: } 9989: } 9990: } 9991: } 9992: if ($refused) { 9993: &logthis('Refused custom assignrole: '. 9994: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start. 9995: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}); 9996: return 'refused'; 9997: } 9998: } 9999: $mrole='cr'; 10000: } elsif ($role =~ /^gr\//) { 10001: my $cwogrp=$url; 10002: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2}; 10003: unless (&allowed('mdg',$cwogrp)) { 10004: &logthis('Refused group assignrole: '. 10005: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. 10006: $env{'user.name'}.' at '.$env{'user.domain'}); 10007: return 'refused'; 10008: } 10009: $mrole='gr'; 10010: } else { 10011: my $cwosec=$url; 10012: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; 10013: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) { 10014: my $refused; 10015: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) { 10016: if (!(&allowed('c'.$role,$url))) { 10017: $refused = 1; 10018: } 10019: } else { 10020: $refused = 1; 10021: } 10022: if ($refused) { 10023: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); 10024: if (!$selfenroll && (($context eq 'course') || ($context eq 'ltienroll' && $env{'request.lti.login'}))) { 10025: my %crsenv; 10026: if ($role eq 'cc' || $role eq 'co') { 10027: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10028: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) { 10029: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) { 10030: if ($crsenv{'internal.courseowner'} eq 10031: $env{'user.name'}.':'.$env{'user.domain'}) { 10032: $refused = ''; 10033: } 10034: } 10035: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) { 10036: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) { 10037: if ($crsenv{'internal.courseowner'} eq 10038: $env{'user.name'}.':'.$env{'user.domain'}) { 10039: $refused = ''; 10040: } 10041: } 10042: } 10043: } 10044: } elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { 10045: if ($role eq 'st') { 10046: $refused = ''; 10047: } elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) { 10048: $refused = ''; 10049: } 10050: } elsif ($context eq 'requestcourses') { 10051: my @possroles = ('st','ta','ep','in','cc','co'); 10052: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) { 10053: my $wrongcc; 10054: if ($cnum =~ /^$match_community$/) { 10055: $wrongcc = 1 if ($role eq 'cc'); 10056: } else { 10057: $wrongcc = 1 if ($role eq 'co'); 10058: } 10059: unless ($wrongcc) { 10060: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); 10061: if ($crsenv{'internal.courseowner'} eq 10062: $env{'user.name'}.':'.$env{'user.domain'}) { 10063: $refused = ''; 10064: } 10065: } 10066: } 10067: } elsif ($context eq 'requestauthor') { 10068: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && 10069: ($url eq '/'.$udom.'/') && ($role eq 'au')) { 10070: if ($env{'environment.requestauthor'} eq 'automatic') { 10071: $refused = ''; 10072: } else { 10073: my %domdefaults = &get_domain_defaults($udom); 10074: if (ref($domdefaults{'requestauthor'}) eq 'HASH') { 10075: my $checkbystatus; 10076: if ($env{'user.adv'}) { 10077: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'}; 10078: if ($disposition eq 'automatic') { 10079: $refused = ''; 10080: } elsif ($disposition eq '') { 10081: $checkbystatus = 1; 10082: } 10083: } else { 10084: $checkbystatus = 1; 10085: } 10086: if ($checkbystatus) { 10087: if ($env{'environment.inststatus'}) { 10088: my @inststatuses = split(/,/,$env{'environment.inststatus'}); 10089: foreach my $type (@inststatuses) { 10090: if (($type ne '') && 10091: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) { 10092: $refused = ''; 10093: } 10094: } 10095: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') { 10096: $refused = ''; 10097: } 10098: } 10099: } 10100: } 10101: } 10102: } 10103: if ($refused) { 10104: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url. 10105: ' '.$role.' '.$end.' '.$start.' by '. 10106: $env{'user.name'}.' at '.$env{'user.domain'}); 10107: return 'refused'; 10108: } 10109: } 10110: } elsif ($role eq 'au') { 10111: if ($url ne '/'.$udom.'/') { 10112: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}. 10113: ' to assign author role for '.$uname.':'.$udom. 10114: ' in domain: '.$url.' refused (wrong domain).'); 10115: return 'refused'; 10116: } 10117: } 10118: $mrole=$role; 10119: } 10120: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". 10121: "$udom:$uname:$url".'_'."$mrole=$role"; 10122: if ($end) { $command.='_'.$end; } 10123: if ($start) { 10124: if ($end) { 10125: $command.='_'.$start; 10126: } else { 10127: $command.='_0_'.$start; 10128: } 10129: } 10130: my $origstart = $start; 10131: my $origend = $end; 10132: my $delflag; 10133: # actually delete 10134: if ($deleteflag) { 10135: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) { 10136: # modify command to delete the role 10137: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:". 10138: "$udom:$uname:$url".'_'."$mrole"; 10139: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom"); 10140: # set start and finish to negative values for userrolelog 10141: $start=-1; 10142: $end=-1; 10143: $delflag = 1; 10144: } 10145: } 10146: # send command 10147: my $answer=&reply($command,&homeserver($uname,$udom)); 10148: # log new user role if status is ok 10149: if ($answer eq 'ok') { 10150: &userrolelog($role,$uname,$udom,$url,$start,$end); 10151: if (($role eq 'cc') || ($role eq 'in') || 10152: ($role eq 'ep') || ($role eq 'ad') || 10153: ($role eq 'ta') || ($role eq 'st') || 10154: ($role=~/^cr/) || ($role eq 'gr') || 10155: ($role eq 'co')) { 10156: # for course roles, perform group memberships changes triggered by role change. 10157: unless ($role =~ /^gr/) { 10158: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend, 10159: $origstart,$selfenroll,$context); 10160: } 10161: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10162: $selfenroll,$context); 10163: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') || 10164: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') || 10165: ($role eq 'da')) { 10166: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10167: $context); 10168: } elsif (($role eq 'ca') || ($role eq 'aa')) { 10169: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, 10170: $context); 10171: } 10172: if ($role eq 'cc') { 10173: &autoupdate_coowners($url,$end,$start,$uname,$udom); 10174: } 10175: } 10176: return $answer; 10177: } 10178: 10179: sub autoupdate_coowners { 10180: my ($url,$end,$start,$uname,$udom) = @_; 10181: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)}); 10182: if (($cdom ne '') && ($cnum ne '')) { 10183: my $now = time; 10184: my %domdesign = &Apache::loncommon::get_domainconf($cdom); 10185: if ($domdesign{$cdom.'.autoassign.co-owners'}) { 10186: my %coursehash = &coursedescription($cdom.'_'.$cnum); 10187: my $instcode = $coursehash{'internal.coursecode'}; 10188: if ($instcode ne '') { 10189: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) { 10190: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) { 10191: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners); 10192: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom); 10193: if ($result eq 'valid') { 10194: if ($coursehash{'internal.co-owners'}) { 10195: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { 10196: push(@newcoowners,$coowner); 10197: } 10198: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) { 10199: push(@newcoowners,$uname.':'.$udom); 10200: } 10201: @newcoowners = sort(@newcoowners); 10202: } else { 10203: push(@newcoowners,$uname.':'.$udom); 10204: } 10205: } else { 10206: if ($coursehash{'internal.co-owners'}) { 10207: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { 10208: unless ($coowner eq $uname.':'.$udom) { 10209: push(@newcoowners,$coowner); 10210: } 10211: } 10212: unless (@newcoowners > 0) { 10213: $delcoowners = 1; 10214: $coowners = ''; 10215: } 10216: } 10217: } 10218: if (@newcoowners || $delcoowners) { 10219: &store_coowners($cdom,$cnum,$coursehash{'home'}, 10220: $delcoowners,@newcoowners); 10221: } 10222: } 10223: } 10224: } 10225: } 10226: } 10227: } 10228: 10229: sub store_coowners { 10230: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_; 10231: my $cid = $cdom.'_'.$cnum; 10232: my ($coowners,$delresult,$putresult); 10233: if (@newcoowners) { 10234: $coowners = join(',',@newcoowners); 10235: my %coownershash = ( 10236: 'internal.co-owners' => $coowners, 10237: ); 10238: $putresult = &put('environment',\%coownershash,$cdom,$cnum); 10239: if ($putresult eq 'ok') { 10240: if ($env{'course.'.$cid.'.num'} eq $cnum) { 10241: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners}); 10242: } 10243: } 10244: } 10245: if ($delcoowners) { 10246: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum); 10247: if ($delresult eq 'ok') { 10248: if ($env{'course.'.$cid.'.internal.co-owners'}) { 10249: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners'); 10250: } 10251: } 10252: } 10253: if (($putresult eq 'ok') || ($delresult eq 'ok')) { 10254: my %crsinfo = 10255: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); 10256: if (ref($crsinfo{$cid}) eq 'HASH') { 10257: $crsinfo{$cid}{'co-owners'} = \@newcoowners; 10258: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime'); 10259: } 10260: } 10261: } 10262: 10263: # -------------------------------------------------- Modify user authentication 10264: # Overrides without validation 10265: 10266: sub modifyuserauth { 10267: my ($udom,$uname,$umode,$upass)=@_; 10268: my $uhome=&homeserver($uname,$udom); 10269: my $allowed; 10270: if (&allowed('mau',$udom)) { 10271: $allowed = 1; 10272: } elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) && 10273: ($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) && 10274: (!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) { 10275: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 10276: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 10277: if (($cdom ne '') && ($cnum ne '')) { 10278: my $is_owner = &is_course_owner($cdom,$cnum); 10279: if ($is_owner) { 10280: $allowed = 1; 10281: } 10282: } 10283: } 10284: unless ($allowed) { return 'refused'; } 10285: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '. 10286: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}. 10287: ' in domain '.$env{'request.role.domain'}); 10288: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'. 10289: &escape($upass),$uhome); 10290: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 10291: 'Authentication changed for '.$udom.', '.$uname.', '.$umode. 10292: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); 10293: &log($udom,,$uname,$uhome, 10294: 'Authentication changed by '.$env{'user.domain'}.', '. 10295: $env{'user.name'}.', '.$umode. 10296: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); 10297: unless ($reply eq 'ok') { 10298: &logthis('Authentication mode error: '.$reply); 10299: return 'error: '.$reply; 10300: } 10301: return 'ok'; 10302: } 10303: 10304: # --------------------------------------------------------------- Modify a user 10305: 10306: sub modifyuser { 10307: my ($udom, $uname, $uid, 10308: $umode, $upass, $first, 10309: $middle, $last, $gene, 10310: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_; 10311: $udom= &LONCAPA::clean_domain($udom); 10312: $uname=&LONCAPA::clean_username($uname); 10313: my $showcandelete = 'none'; 10314: if (ref($candelete) eq 'ARRAY') { 10315: if (@{$candelete} > 0) { 10316: $showcandelete = join(', ',@{$candelete}); 10317: } 10318: } 10319: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '. 10320: $umode.', '.$first.', '.$middle.', '. 10321: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'. 10322: (defined($desiredhome) ? ' desiredhome = '.$desiredhome : 10323: ' desiredhome not specified'). 10324: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}. 10325: ' in domain '.$env{'request.role.domain'}); 10326: my $uhome=&homeserver($uname,$udom,'true'); 10327: my $newuser; 10328: if ($uhome eq 'no_host') { 10329: $newuser = 1; 10330: unless (($umode && ($upass ne '')) || ($umode eq 'localauth') || 10331: ($umode eq 'lti')) { 10332: return 'error: more information needed to create new user'; 10333: } 10334: } 10335: # ----------------------------------------------------------------- Create User 10336: if (($uhome eq 'no_host') && 10337: (($umode && $upass) || ($umode eq 'localauth') || ($umode eq 'lti'))) { 10338: my $unhome=''; 10339: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) { 10340: $unhome = $desiredhome; 10341: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) { 10342: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'}; 10343: } else { # load balancing routine for determining $unhome 10344: my $loadm=10000000; 10345: my %servers = &get_servers($udom,'library'); 10346: foreach my $tryserver (keys(%servers)) { 10347: my $answer=reply('load',$tryserver); 10348: if (($answer=~/\d+/) && ($answer<$loadm)) { 10349: $loadm=$answer; 10350: $unhome=$tryserver; 10351: } 10352: } 10353: } 10354: if (($unhome eq '') || ($unhome eq 'no_host')) { 10355: return 'error: unable to find a home server for '.$uname. 10356: ' in domain '.$udom; 10357: } 10358: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'. 10359: &escape($upass),$unhome); 10360: unless ($reply eq 'ok') { 10361: return 'error: '.$reply; 10362: } 10363: $uhome=&homeserver($uname,$udom,'true'); 10364: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) { 10365: return 'error: unable verify users home machine.'; 10366: } 10367: } # End of creation of new user 10368: # ---------------------------------------------------------------------- Add ID 10369: if ($uid) { 10370: $uid=~tr/A-Z/a-z/; 10371: my %uidhash=&idrget($udom,$uname); 10372: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/) 10373: && (!$forceid)) { 10374: unless ($uid eq $uidhash{$uname}) { 10375: return 'error: user id "'.$uid.'" does not match '. 10376: 'current user id "'.$uidhash{$uname}.'".'; 10377: } 10378: } else { 10379: &idput($udom,{$uname => $uid},$uhome,'ids'); 10380: } 10381: } 10382: # -------------------------------------------------------------- Add names, etc 10383: my @tmp=&get('environment', 10384: ['firstname','middlename','lastname','generation','id', 10385: 'permanentemail','inststatus'], 10386: $udom,$uname); 10387: my (%names,%oldnames); 10388: if ($tmp[0] =~ m/^error:.*/) { 10389: %names=(); 10390: } else { 10391: %names = @tmp; 10392: %oldnames = %names; 10393: } 10394: # 10395: # If name, email and/or uid are blank (e.g., because an uploaded file 10396: # of users did not contain them), do not overwrite existing values 10397: # unless field is in $candelete array ref. 10398: # 10399: 10400: my @fields = ('firstname','middlename','lastname','generation', 10401: 'permanentemail','id'); 10402: my %newvalues; 10403: if (ref($candelete) eq 'ARRAY') { 10404: foreach my $field (@fields) { 10405: if (grep(/^\Q$field\E$/,@{$candelete})) { 10406: if ($field eq 'firstname') { 10407: $names{$field} = $first; 10408: } elsif ($field eq 'middlename') { 10409: $names{$field} = $middle; 10410: } elsif ($field eq 'lastname') { 10411: $names{$field} = $last; 10412: } elsif ($field eq 'generation') { 10413: $names{$field} = $gene; 10414: } elsif ($field eq 'permanentemail') { 10415: $names{$field} = $email; 10416: } elsif ($field eq 'id') { 10417: $names{$field} = $uid; 10418: } 10419: } 10420: } 10421: } 10422: if ($first) { $names{'firstname'} = $first; } 10423: if (defined($middle)) { $names{'middlename'} = $middle; } 10424: if ($last) { $names{'lastname'} = $last; } 10425: if (defined($gene)) { $names{'generation'} = $gene; } 10426: if ($email) { 10427: $email=~s/[^\w\@\.\-\,]//gs; 10428: if ($email=~/\@/) { $names{'permanentemail'} = $email; } 10429: } 10430: if ($uid) { $names{'id'} = $uid; } 10431: if (defined($inststatus)) { 10432: $names{'inststatus'} = ''; 10433: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom); 10434: if (ref($usertypes) eq 'HASH') { 10435: my @okstatuses; 10436: foreach my $item (split(/:/,$inststatus)) { 10437: if (defined($usertypes->{$item})) { 10438: push(@okstatuses,$item); 10439: } 10440: } 10441: if (@okstatuses) { 10442: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses); 10443: } 10444: } 10445: } 10446: my $logmsg = $udom.', '.$uname.', '.$uid.', '. 10447: $umode.', '.$first.', '.$middle.', '. 10448: $last.', '.$gene.', '.$email.', '.$inststatus; 10449: if ($env{'user.name'} ne '' && $env{'user.domain'}) { 10450: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'}; 10451: } else { 10452: $logmsg .= ' during self creation'; 10453: } 10454: my $changed; 10455: if ($newuser) { 10456: $changed = 1; 10457: } else { 10458: foreach my $field (@fields) { 10459: if ($names{$field} ne $oldnames{$field}) { 10460: $changed = 1; 10461: last; 10462: } 10463: } 10464: } 10465: unless ($changed) { 10466: $logmsg = 'No changes in user information needed for: '.$logmsg; 10467: &logthis($logmsg); 10468: return 'ok'; 10469: } 10470: my $reply = &put('environment', \%names, $udom,$uname); 10471: if ($reply ne 'ok') { 10472: return 'error: '.$reply; 10473: } 10474: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) { 10475: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom); 10476: } 10477: my $sqlresult = &update_allusers_table($uname,$udom,\%names); 10478: &devalidate_cache_new('namescache',$uname.':'.$udom); 10479: $logmsg = 'Success modifying user '.$logmsg; 10480: &logthis($logmsg); 10481: return 'ok'; 10482: } 10483: 10484: # -------------------------------------------------------------- Modify student 10485: 10486: sub modifystudent { 10487: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec, 10488: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid, 10489: $selfenroll,$context,$inststatus,$credits,$instsec)=@_; 10490: if (!$cid) { 10491: unless ($cid=$env{'request.course.id'}) { 10492: return 'not_in_class'; 10493: } 10494: } 10495: # --------------------------------------------------------------- Make the user 10496: my $reply=&modifyuser 10497: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid, 10498: $desiredhome,$email,$inststatus); 10499: unless ($reply eq 'ok') { return $reply; } 10500: # This will cause &modify_student_enrollment to get the uid from the 10501: # student's environment 10502: $uid = undef if (!$forceid); 10503: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last, 10504: $gene,$usec,$end,$start,$type,$locktype, 10505: $cid,$selfenroll,$context,$credits,$instsec); 10506: return $reply; 10507: } 10508: 10509: sub modify_student_enrollment { 10510: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type, 10511: $locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_; 10512: my ($cdom,$cnum,$chome); 10513: if (!$cid) { 10514: unless ($cid=$env{'request.course.id'}) { 10515: return 'not_in_class'; 10516: } 10517: $cdom=$env{'course.'.$cid.'.domain'}; 10518: $cnum=$env{'course.'.$cid.'.num'}; 10519: } else { 10520: ($cdom,$cnum)=split(/_/,$cid); 10521: } 10522: $chome=$env{'course.'.$cid.'.home'}; 10523: if (!$chome) { 10524: $chome=&homeserver($cnum,$cdom); 10525: } 10526: if (!$chome) { return 'unknown_course'; } 10527: # Make sure the user exists 10528: my $uhome=&homeserver($uname,$udom); 10529: if (($uhome eq '') || ($uhome eq 'no_host')) { 10530: return 'error: no such user'; 10531: } 10532: # Get student data if we were not given enough information 10533: if (!defined($first) || $first eq '' || 10534: !defined($last) || $last eq '' || 10535: !defined($uid) || $uid eq '' || 10536: !defined($middle) || $middle eq '' || 10537: !defined($gene) || $gene eq '') { 10538: # They did not supply us with enough data to enroll the student, so 10539: # we need to pick up more information. 10540: my %tmp = &get('environment', 10541: ['firstname','middlename','lastname', 'generation','id'] 10542: ,$udom,$uname); 10543: 10544: #foreach my $key (keys(%tmp)) { 10545: # &logthis("key $key = ".$tmp{$key}); 10546: #} 10547: $first = $tmp{'firstname'} if (!defined($first) || $first eq ''); 10548: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq ''); 10549: $last = $tmp{'lastname'} if (!defined($last) || $last eq ''); 10550: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq ''); 10551: $uid = $tmp{'id'} if (!defined($uid) || $uid eq ''); 10552: } 10553: my $fullname = &format_name($first,$middle,$last,$gene,'lastname'); 10554: my $user = "$uname:$udom"; 10555: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum); 10556: my $reply=cput('classlist', 10557: {$user => 10558: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) }, 10559: $cdom,$cnum); 10560: if (($reply eq 'ok') || ($reply eq 'delayed')) { 10561: &devalidate_getsection_cache($udom,$uname,$cid); 10562: } else { 10563: return 'error: '.$reply; 10564: } 10565: # Add student role to user 10566: my $uurl='/'.$cid; 10567: $uurl=~s/\_/\//g; 10568: if ($usec) { 10569: $uurl.='/'.$usec; 10570: } 10571: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef, 10572: $selfenroll,$context); 10573: if ($result ne 'ok') { 10574: if ($old_entry{$user} ne '') { 10575: $reply = &cput('classlist',\%old_entry,$cdom,$cnum); 10576: } else { 10577: $reply = &del('classlist',[$user],$cdom,$cnum); 10578: } 10579: } 10580: return $result; 10581: } 10582: 10583: sub format_name { 10584: my ($firstname,$middlename,$lastname,$generation,$first)=@_; 10585: my $name; 10586: if ($first ne 'lastname') { 10587: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation; 10588: } else { 10589: if ($lastname=~/\S/) { 10590: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename; 10591: $name=~s/\s+,/,/; 10592: } else { 10593: $name.= $firstname.' '.$middlename.' '.$generation; 10594: } 10595: } 10596: $name=~s/^\s+//; 10597: $name=~s/\s+$//; 10598: $name=~s/\s+/ /g; 10599: return $name; 10600: } 10601: 10602: # ------------------------------------------------- Write to course preferences 10603: 10604: sub writecoursepref { 10605: my ($courseid,%prefs)=@_; 10606: $courseid=~s/^\///; 10607: $courseid=~s/\_/\//g; 10608: my ($cdomain,$cnum)=split(/\//,$courseid); 10609: my $chome=homeserver($cnum,$cdomain); 10610: if (($chome eq '') || ($chome eq 'no_host')) { 10611: return 'error: no such course'; 10612: } 10613: my $cstring=''; 10614: foreach my $pref (keys(%prefs)) { 10615: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&'; 10616: } 10617: $cstring=~s/\&$//; 10618: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome); 10619: } 10620: 10621: # ---------------------------------------------------------- Make/modify course 10622: 10623: sub createcourse { 10624: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code, 10625: $course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_; 10626: $url=&declutter($url); 10627: my $cid=''; 10628: if ($context eq 'requestcourses') { 10629: my $can_create = 0; 10630: my ($ownername,$ownerdom) = split(':',$course_owner); 10631: if ($udom eq $ownerdom) { 10632: my $reload; 10633: if (($callercontext eq 'auto') && 10634: ($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) { 10635: $reload = 'reload'; 10636: } 10637: if (&usertools_access($ownername,$ownerdom,$category,$reload, 10638: $context)) { 10639: $can_create = 1; 10640: } 10641: } else { 10642: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'. 10643: $category); 10644: if ($userenv{'reqcrsotherdom.'.$category} ne '') { 10645: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category}); 10646: if (@curr > 0) { 10647: my @options = qw(approval validate autolimit); 10648: my $optregex = join('|',@options); 10649: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) { 10650: $can_create = 1; 10651: } 10652: } 10653: } 10654: } 10655: if ($can_create) { 10656: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) { 10657: unless (&allowed('ccc',$udom)) { 10658: return 'refused'; 10659: } 10660: } 10661: } else { 10662: return 'refused'; 10663: } 10664: } elsif (!&allowed('ccc',$udom)) { 10665: return 'refused'; 10666: } 10667: # --------------------------------------------------------------- Get Unique ID 10668: my $uname; 10669: if ($cnum =~ /^$match_courseid$/) { 10670: my $chome=&homeserver($cnum,$udom,'true'); 10671: if (($chome eq '') || ($chome eq 'no_host')) { 10672: $uname = $cnum; 10673: } else { 10674: $uname = &generate_coursenum($udom,$crstype); 10675: } 10676: } else { 10677: $uname = &generate_coursenum($udom,$crstype); 10678: } 10679: return $uname if ($uname =~ /^error/); 10680: # -------------------------------------------------- Check supplied server name 10681: if (!defined($course_server)) { 10682: if (defined(&domain($udom,'primary'))) { 10683: $course_server = &domain($udom,'primary'); 10684: } else { 10685: $course_server = $env{'user.home'}; 10686: } 10687: } 10688: my %host_servers = 10689: &Apache::lonnet::get_servers($udom,'library'); 10690: unless ($host_servers{$course_server}) { 10691: return 'error: invalid home server for course: '.$course_server; 10692: } 10693: # ------------------------------------------------------------- Make the course 10694: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::', 10695: $course_server); 10696: unless ($reply eq 'ok') { return 'error: '.$reply; } 10697: my $uhome=&homeserver($uname,$udom,'true'); 10698: if (($uhome eq '') || ($uhome eq 'no_host')) { 10699: return 'error: no such course'; 10700: } 10701: # ----------------------------------------------------------------- Course made 10702: # log existence 10703: my $now = time; 10704: my $newcourse = { 10705: $udom.'_'.$uname => { 10706: description => $description, 10707: inst_code => $inst_code, 10708: owner => $course_owner, 10709: type => $crstype, 10710: creator => $env{'user.name'}.':'. 10711: $env{'user.domain'}, 10712: created => $now, 10713: context => $context, 10714: }, 10715: }; 10716: &courseidput($udom,$newcourse,$uhome,'notime'); 10717: # set toplevel url 10718: my $topurl=$url; 10719: unless ($nonstandard) { 10720: # ------------------------------------------ For standard courses, make top url 10721: my $mapurl=&clutter($url); 10722: if ($mapurl eq '/res/') { $mapurl=''; } 10723: $env{'form.initmap'}=(<<ENDINITMAP); 10724: <map> 10725: <resource id="1" type="start"></resource> 10726: <resource id="2" src="$mapurl"></resource> 10727: <resource id="3" type="finish"></resource> 10728: <link index="1" from="1" to="2"></link> 10729: <link index="2" from="2" to="3"></link> 10730: </map> 10731: ENDINITMAP 10732: $topurl=&declutter( 10733: &finishuserfileupload($uname,$udom,'initmap','default.sequence') 10734: ); 10735: } 10736: # ----------------------------------------------------------- Write preferences 10737: &writecoursepref($udom.'_'.$uname, 10738: ('description' => $description, 10739: 'url' => $topurl, 10740: 'internal.creator' => $env{'user.name'}.':'. 10741: $env{'user.domain'}, 10742: 'internal.created' => $now, 10743: 'internal.creationcontext' => $context) 10744: ); 10745: return '/'.$udom.'/'.$uname; 10746: } 10747: 10748: # ------------------------------------------------------------------- Create ID 10749: sub generate_coursenum { 10750: my ($udom,$crstype) = @_; 10751: my $domdesc = &domain($udom); 10752: return 'error: invalid domain' if ($domdesc eq ''); 10753: my $first; 10754: if ($crstype eq 'Community') { 10755: $first = '0'; 10756: } else { 10757: $first = int(1+rand(9)); 10758: } 10759: my $uname=$first. 10760: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. 10761: substr($$.time,0,5).unpack("H8",pack("I32",time)). 10762: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; 10763: # ----------------------------------------------- Make sure that does not exist 10764: my $uhome=&homeserver($uname,$udom,'true'); 10765: unless (($uhome eq '') || ($uhome eq 'no_host')) { 10766: if ($crstype eq 'Community') { 10767: $first = '0'; 10768: } else { 10769: $first = int(1+rand(9)); 10770: } 10771: $uname=$first. 10772: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. 10773: substr($$.time,0,5).unpack("H8",pack("I32",time)). 10774: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; 10775: $uhome=&homeserver($uname,$udom,'true'); 10776: unless (($uhome eq '') || ($uhome eq 'no_host')) { 10777: return 'error: unable to generate unique course-ID'; 10778: } 10779: } 10780: return $uname; 10781: } 10782: 10783: sub is_course { 10784: my ($cdom, $cnum) = scalar(@_) == 1 ? 10785: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_; 10786: 10787: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)); 10788: my $uhome=&homeserver($cnum,$cdom); 10789: my $iscourse; 10790: if (grep { $_ eq $uhome } current_machine_ids()) { 10791: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum); 10792: } else { 10793: my $hashid = $cdom.':'.$cnum; 10794: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid); 10795: unless (defined($cached)) { 10796: my %courses = &courseiddump($cdom, '.', 1, '.', '.', 10797: $cnum,undef,undef,'.'); 10798: $iscourse = 0; 10799: if (exists($courses{$cdom.'_'.$cnum})) { 10800: $iscourse = 1; 10801: } 10802: &do_cache_new('iscourse',$hashid,$iscourse,3600); 10803: } 10804: } 10805: return unless ($iscourse); 10806: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum; 10807: } 10808: 10809: sub store_userdata { 10810: my ($storehash,$datakey,$namespace,$udom,$uname) = @_; 10811: my $result; 10812: if ($datakey ne '') { 10813: if (ref($storehash) eq 'HASH') { 10814: if ($udom eq '' || $uname eq '') { 10815: $udom = $env{'user.domain'}; 10816: $uname = $env{'user.name'}; 10817: } 10818: my $uhome=&homeserver($uname,$udom); 10819: if (($uhome eq '') || ($uhome eq 'no_host')) { 10820: $result = 'error: no_host'; 10821: } else { 10822: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'}; 10823: $storehash->{'host'} = $perlvar{'lonHostID'}; 10824: 10825: my $namevalue=''; 10826: foreach my $key (keys(%{$storehash})) { 10827: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; 10828: } 10829: $namevalue=~s/\&$//; 10830: unless ($namespace eq 'courserequests') { 10831: $datakey = &escape($datakey); 10832: } 10833: $result = &reply("store:$udom:$uname:$namespace:$datakey:". 10834: $namevalue,$uhome); 10835: } 10836: } else { 10837: $result = 'error: data to store was not a hash reference'; 10838: } 10839: } else { 10840: $result= 'error: invalid requestkey'; 10841: } 10842: return $result; 10843: } 10844: 10845: # ---------------------------------------------------------- Assign Custom Role 10846: 10847: sub assigncustomrole { 10848: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_; 10849: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename, 10850: $end,$start,$deleteflag,$selfenroll,$context); 10851: } 10852: 10853: # ----------------------------------------------------------------- Revoke Role 10854: 10855: sub revokerole { 10856: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_; 10857: my $now=time; 10858: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context); 10859: } 10860: 10861: # ---------------------------------------------------------- Revoke Custom Role 10862: 10863: sub revokecustomrole { 10864: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_; 10865: my $now=time; 10866: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now, 10867: $deleteflag,$selfenroll,$context); 10868: } 10869: 10870: # ------------------------------------------------------------ Disk usage 10871: sub diskusage { 10872: my ($udom,$uname,$directorypath,$getpropath)=@_; 10873: $directorypath =~ s/\/$//; 10874: my $listing=&reply('du2:'.&escape($directorypath).':' 10875: .&escape($getpropath).':'.&escape($uname).':' 10876: .&escape($udom),homeserver($uname,$udom)); 10877: if ($listing eq 'unknown_cmd') { 10878: if ($getpropath) { 10879: $directorypath = &propath($udom,$uname).'/'.$directorypath; 10880: } 10881: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom)); 10882: } 10883: return $listing; 10884: } 10885: 10886: sub is_locked { 10887: my ($file_name, $domain, $user, $which) = @_; 10888: my @check; 10889: my $is_locked; 10890: push (@check,$file_name); 10891: my %locked = &get('file_permissions',\@check, 10892: $env{'user.domain'},$env{'user.name'}); 10893: my ($tmp)=keys(%locked); 10894: if ($tmp=~/^error:/) { undef(%locked); } 10895: 10896: if (ref($locked{$file_name}) eq 'ARRAY') { 10897: $is_locked = 'false'; 10898: foreach my $entry (@{$locked{$file_name}}) { 10899: if (ref($entry) eq 'ARRAY') { 10900: $is_locked = 'true'; 10901: if (ref($which) eq 'ARRAY') { 10902: push(@{$which},$entry); 10903: } else { 10904: last; 10905: } 10906: } 10907: } 10908: } else { 10909: $is_locked = 'false'; 10910: } 10911: return $is_locked; 10912: } 10913: 10914: sub declutter_portfile { 10915: my ($file) = @_; 10916: $file =~ s{^(/portfolio/|portfolio/)}{/}; 10917: return $file; 10918: } 10919: 10920: # ------------------------------------------------------------- Mark as Read Only 10921: 10922: sub mark_as_readonly { 10923: my ($domain,$user,$files,$what) = @_; 10924: my %current_permissions = &dump('file_permissions',$domain,$user); 10925: my ($tmp)=keys(%current_permissions); 10926: if ($tmp=~/^error:/) { undef(%current_permissions); } 10927: foreach my $file (@{$files}) { 10928: $file = &declutter_portfile($file); 10929: push(@{$current_permissions{$file}},$what); 10930: } 10931: &put('file_permissions',\%current_permissions,$domain,$user); 10932: return; 10933: } 10934: 10935: # ------------------------------------------------------------Save Selected Files 10936: 10937: sub save_selected_files { 10938: my ($user, $path, @files) = @_; 10939: my $filename = $user."savedfiles"; 10940: my @other_files = &files_not_in_path($user, $path); 10941: open (OUT,'>',LONCAPA::tempdir().$filename); 10942: foreach my $file (@files) { 10943: print (OUT $env{'form.currentpath'}.$file."\n"); 10944: } 10945: foreach my $file (@other_files) { 10946: print (OUT $file."\n"); 10947: } 10948: close (OUT); 10949: return 'ok'; 10950: } 10951: 10952: sub clear_selected_files { 10953: my ($user) = @_; 10954: my $filename = $user."savedfiles"; 10955: open (OUT,'>',LONCAPA::tempdir().$filename); 10956: print (OUT undef); 10957: close (OUT); 10958: return ("ok"); 10959: } 10960: 10961: sub files_in_path { 10962: my ($user, $path) = @_; 10963: my $filename = $user."savedfiles"; 10964: my %return_files; 10965: open (IN,'<',LONCAPA::tempdir().$filename); 10966: while (my $line_in = <IN>) { 10967: chomp ($line_in); 10968: my @paths_and_file = split (m!/!, $line_in); 10969: my $file_part = pop (@paths_and_file); 10970: my $path_part = join ('/', @paths_and_file); 10971: $path_part.='/'; 10972: my $path_and_file = $path_part.$file_part; 10973: if ($path_part eq $path) { 10974: $return_files{$file_part}= 'selected'; 10975: } 10976: } 10977: close (IN); 10978: return (\%return_files); 10979: } 10980: 10981: # called in portfolio select mode, to show files selected NOT in current directory 10982: sub files_not_in_path { 10983: my ($user, $path) = @_; 10984: my $filename = $user."savedfiles"; 10985: my @return_files; 10986: my $path_part; 10987: open(IN, '<',LONCAPA::tempdir().$filename); 10988: while (my $line = <IN>) { 10989: #ok, I know it's clunky, but I want it to work 10990: my @paths_and_file = split(m|/|, $line); 10991: my $file_part = pop(@paths_and_file); 10992: chomp($file_part); 10993: my $path_part = join('/', @paths_and_file); 10994: $path_part .= '/'; 10995: my $path_and_file = $path_part.$file_part; 10996: if ($path_part ne $path) { 10997: push(@return_files, ($path_and_file)); 10998: } 10999: } 11000: close(OUT); 11001: return (@return_files); 11002: } 11003: 11004: #------------------------------Submitted/Handedback Portfolio Files Versioning 11005: 11006: sub portfiles_versioning { 11007: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_; 11008: my $portfolio_root = '/userfiles/portfolio'; 11009: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY')); 11010: foreach my $file (@{$portfiles}) { 11011: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file); 11012: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/); 11013: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file); 11014: my $getpropath = 1; 11015: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain, 11016: $stu_name,$getpropath); 11017: my $version = &get_next_version($answer_name,$answer_ext,$dir_list); 11018: my $new_answer = 11019: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version); 11020: if ($new_answer ne 'problem getting file') { 11021: push(@{$versioned_portfiles}, $directory.$new_answer); 11022: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer], 11023: [$symb,$env{'request.course.id'},'graded']); 11024: } 11025: } 11026: } 11027: 11028: sub get_next_version { 11029: my ($answer_name, $answer_ext, $dir_list) = @_; 11030: my $version; 11031: if (ref($dir_list) eq 'ARRAY') { 11032: foreach my $row (@{$dir_list}) { 11033: my ($file) = split(/\&/,$row,2); 11034: my ($file_name,$file_version,$file_ext) = 11035: &file_name_version_ext($file); 11036: if (($file_name eq $answer_name) && 11037: ($file_ext eq $answer_ext)) { 11038: # gets here if filename and extension match, 11039: # regardless of version 11040: if ($file_version ne '') { 11041: # a versioned file is found so save it for later 11042: if ($file_version > $version) { 11043: $version = $file_version; 11044: } 11045: } 11046: } 11047: } 11048: } 11049: $version ++; 11050: return($version); 11051: } 11052: 11053: sub version_selected_portfile { 11054: my ($domain,$stu_name,$directory,$file_name,$version) = @_; 11055: my ($answer_name,$answer_ver,$answer_ext) = 11056: &file_name_version_ext($file_name); 11057: my $new_answer; 11058: $env{'form.copy'} = 11059: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name"); 11060: if($env{'form.copy'} eq '-1') { 11061: $new_answer = 'problem getting file'; 11062: } else { 11063: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext; 11064: my $copy_result = 11065: &finishuserfileupload($stu_name,$domain,'copy', 11066: '/portfolio'.$directory.$new_answer); 11067: } 11068: undef($env{'form.copy'}); 11069: return ($new_answer); 11070: } 11071: 11072: sub file_name_version_ext { 11073: my ($file)=@_; 11074: my @file_parts = split(/\./, $file); 11075: my ($name,$version,$ext); 11076: if (@file_parts > 1) { 11077: $ext=pop(@file_parts); 11078: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) { 11079: $version=pop(@file_parts); 11080: } 11081: $name=join('.',@file_parts); 11082: } else { 11083: $name=join('.',@file_parts); 11084: } 11085: return($name,$version,$ext); 11086: } 11087: 11088: #----------------------------------------------Get portfolio file permissions 11089: 11090: sub get_portfile_permissions { 11091: my ($domain,$user) = @_; 11092: my %current_permissions = &dump('file_permissions',$domain,$user); 11093: my ($tmp)=keys(%current_permissions); 11094: if ($tmp=~/^error:/) { undef(%current_permissions); } 11095: return \%current_permissions; 11096: } 11097: 11098: #---------------------------------------------Get portfolio file access controls 11099: 11100: sub get_access_controls { 11101: my ($current_permissions,$group,$file) = @_; 11102: my %access; 11103: my $real_file = $file; 11104: $file =~ s/\.meta$//; 11105: if (defined($file)) { 11106: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') { 11107: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) { 11108: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control}; 11109: } 11110: } 11111: } else { 11112: foreach my $key (keys(%{$current_permissions})) { 11113: if ($key =~ /\0accesscontrol$/) { 11114: if (defined($group)) { 11115: if ($key !~ m-^\Q$group\E/-) { 11116: next; 11117: } 11118: } 11119: my ($fullpath) = split(/\0/,$key); 11120: if (ref($$current_permissions{$key}) eq 'HASH') { 11121: foreach my $control (keys(%{$$current_permissions{$key}})) { 11122: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control}; 11123: } 11124: } 11125: } 11126: } 11127: } 11128: return %access; 11129: } 11130: 11131: sub modify_access_controls { 11132: my ($file_name,$changes,$domain,$user)=@_; 11133: my ($outcome,$deloutcome); 11134: my %store_permissions; 11135: my %new_values; 11136: my %new_control; 11137: my %translation; 11138: my @deletions = (); 11139: my $now = time; 11140: if (exists($$changes{'activate'})) { 11141: if (ref($$changes{'activate'}) eq 'HASH') { 11142: my @newitems = sort(keys(%{$$changes{'activate'}})); 11143: my $numnew = scalar(@newitems); 11144: for (my $i=0; $i<$numnew; $i++) { 11145: my $newkey = $newitems[$i]; 11146: my $newid = &Apache::loncommon::get_cgi_id(); 11147: if ($newkey =~ /^\d+:/) { 11148: $newkey =~ s/^(\d+)/$newid/; 11149: $translation{$1} = $newid; 11150: } elsif ($newkey =~ /^\d+_\d+_\d+:/) { 11151: $newkey =~ s/^(\d+_\d+_\d+)/$newid/; 11152: $translation{$1} = $newid; 11153: } 11154: $new_values{$file_name."\0".$newkey} = 11155: $$changes{'activate'}{$newitems[$i]}; 11156: $new_control{$newkey} = $now; 11157: } 11158: } 11159: } 11160: my %todelete; 11161: my %changed_items; 11162: foreach my $action ('delete','update') { 11163: if (exists($$changes{$action})) { 11164: if (ref($$changes{$action}) eq 'HASH') { 11165: foreach my $key (keys(%{$$changes{$action}})) { 11166: my ($itemnum) = ($key =~ /^([^:]+):/); 11167: if ($action eq 'delete') { 11168: $todelete{$itemnum} = 1; 11169: } else { 11170: $changed_items{$itemnum} = $key; 11171: } 11172: } 11173: } 11174: } 11175: } 11176: # get lock on access controls for file. 11177: my $lockhash = { 11178: $file_name."\0".'locked_access_records' => $env{'user.name'}. 11179: ':'.$env{'user.domain'}, 11180: }; 11181: my $tries = 0; 11182: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user); 11183: 11184: while (($gotlock ne 'ok') && $tries < 10) { 11185: $tries ++; 11186: sleep(0.1); 11187: $gotlock = &newput('file_permissions',$lockhash,$domain,$user); 11188: } 11189: if ($gotlock eq 'ok') { 11190: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name); 11191: my ($tmp)=keys(%curr_permissions); 11192: if ($tmp=~/^error:/) { undef(%curr_permissions); } 11193: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) { 11194: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'}; 11195: if (ref($curr_controls) eq 'HASH') { 11196: foreach my $control_item (keys(%{$curr_controls})) { 11197: my ($itemnum) = ($control_item =~ /^([^:]+):/); 11198: if (defined($todelete{$itemnum})) { 11199: push(@deletions,$file_name."\0".$control_item); 11200: } else { 11201: if (defined($changed_items{$itemnum})) { 11202: $new_control{$changed_items{$itemnum}} = $now; 11203: push(@deletions,$file_name."\0".$control_item); 11204: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}}; 11205: } else { 11206: $new_control{$control_item} = $$curr_controls{$control_item}; 11207: } 11208: } 11209: } 11210: } 11211: } 11212: my ($group); 11213: if (&is_course($domain,$user)) { 11214: ($group,my $file) = split(/\//,$file_name,2); 11215: } 11216: $deloutcome = &del('file_permissions',\@deletions,$domain,$user); 11217: $new_values{$file_name."\0".'accesscontrol'} = \%new_control; 11218: $outcome = &put('file_permissions',\%new_values,$domain,$user); 11219: # remove lock 11220: my @del_lock = ($file_name."\0".'locked_access_records'); 11221: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user); 11222: my $sqlresult = 11223: &update_portfolio_table($user,$domain,$file_name,'portfolio_access', 11224: $group); 11225: } else { 11226: $outcome = "error: could not obtain lockfile\n"; 11227: } 11228: return ($outcome,$deloutcome,\%new_values,\%translation); 11229: } 11230: 11231: sub make_public_indefinitely { 11232: my (@requrl) = @_; 11233: return &automated_portfile_access('public',\@requrl); 11234: } 11235: 11236: sub automated_portfile_access { 11237: my ($accesstype,$addsref,$delsref,$info) = @_; 11238: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) { 11239: return 'invalid'; 11240: } 11241: my %urls; 11242: if (ref($addsref) eq 'ARRAY') { 11243: foreach my $requrl (@{$addsref}) { 11244: if (&is_portfolio_url($requrl)) { 11245: unless (exists($urls{$requrl})) { 11246: $urls{$requrl} = 'add'; 11247: } 11248: } 11249: } 11250: } 11251: if (ref($delsref) eq 'ARRAY') { 11252: foreach my $requrl (@{$delsref}) { 11253: if (&is_portfolio_url($requrl)) { 11254: unless (exists($urls{$requrl})) { 11255: $urls{$requrl} = 'delete'; 11256: } 11257: } 11258: } 11259: } 11260: unless (keys(%urls)) { 11261: return 'invalid'; 11262: } 11263: my $ip; 11264: if ($accesstype eq 'ip') { 11265: if (ref($info) eq 'HASH') { 11266: if ($info->{'ip'} ne '') { 11267: $ip = $info->{'ip'}; 11268: } 11269: } 11270: if ($ip eq '') { 11271: return 'invalid'; 11272: } 11273: } 11274: my $errors; 11275: my $now = time; 11276: my %current_perms; 11277: foreach my $requrl (sort(keys(%urls))) { 11278: my $action; 11279: if ($urls{$requrl} eq 'add') { 11280: $action = 'activate'; 11281: } else { 11282: $action = 'none'; 11283: } 11284: my $aclnum = 0; 11285: my (undef,$udom,$unum,$file_name,$group) = 11286: &parse_portfolio_url($requrl); 11287: unless (exists($current_perms{$unum.':'.$udom})) { 11288: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum); 11289: } 11290: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom}, 11291: $group,$file_name); 11292: foreach my $key (keys(%{$access_controls{$file_name}})) { 11293: my ($num,$scope,$end,$start) = 11294: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); 11295: if ($scope eq $accesstype) { 11296: if (($start <= $now) && ($end == 0)) { 11297: if ($accesstype eq 'ip') { 11298: if (ref($access_controls{$file_name}{$key}) eq 'HASH') { 11299: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') { 11300: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) { 11301: if ($urls{$requrl} eq 'add') { 11302: $action = 'none'; 11303: last; 11304: } else { 11305: $action = 'delete'; 11306: $aclnum = $num; 11307: last; 11308: } 11309: } 11310: } 11311: } 11312: } elsif ($accesstype eq 'public') { 11313: if ($urls{$requrl} eq 'add') { 11314: $action = 'none'; 11315: last; 11316: } else { 11317: $action = 'delete'; 11318: $aclnum = $num; 11319: last; 11320: } 11321: } 11322: } elsif ($accesstype eq 'public') { 11323: $action = 'update'; 11324: $aclnum = $num; 11325: last; 11326: } 11327: } 11328: } 11329: if ($action eq 'none') { 11330: next; 11331: } else { 11332: my %changes; 11333: my $newend = 0; 11334: my $newstart = $now; 11335: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart; 11336: $changes{$action}{$newkey} = { 11337: type => $accesstype, 11338: time => { 11339: start => $newstart, 11340: end => $newend, 11341: }, 11342: }; 11343: if ($accesstype eq 'ip') { 11344: $changes{$action}{$newkey}{'ip'} = [$ip]; 11345: } 11346: my ($outcome,$deloutcome,$new_values,$translation) = 11347: &modify_access_controls($file_name,\%changes,$udom,$unum); 11348: unless ($outcome eq 'ok') { 11349: $errors .= $outcome.' '; 11350: } 11351: } 11352: } 11353: if ($errors) { 11354: $errors =~ s/\s$//; 11355: return $errors; 11356: } else { 11357: return 'ok'; 11358: } 11359: } 11360: 11361: #------------------------------------------------------Get Marked as Read Only 11362: 11363: sub get_marked_as_readonly { 11364: my ($domain,$user,$what,$group) = @_; 11365: my $current_permissions = &get_portfile_permissions($domain,$user); 11366: my @readonly_files; 11367: my $cmp1=$what; 11368: if (ref($what)) { $cmp1=join('',@{$what}) }; 11369: while (my ($file_name,$value) = each(%{$current_permissions})) { 11370: if (defined($group)) { 11371: if ($file_name !~ m-^\Q$group\E/-) { 11372: next; 11373: } 11374: } 11375: if (ref($value) eq "ARRAY"){ 11376: foreach my $stored_what (@{$value}) { 11377: my $cmp2=$stored_what; 11378: if (ref($stored_what) eq 'ARRAY') { 11379: $cmp2=join('',@{$stored_what}); 11380: } 11381: if ($cmp1 eq $cmp2) { 11382: push(@readonly_files, $file_name); 11383: last; 11384: } elsif (!defined($what)) { 11385: push(@readonly_files, $file_name); 11386: last; 11387: } 11388: } 11389: } 11390: } 11391: return @readonly_files; 11392: } 11393: #-----------------------------------------------------------Get Marked as Read Only Hash 11394: 11395: sub get_marked_as_readonly_hash { 11396: my ($current_permissions,$group,$what) = @_; 11397: my %readonly_files; 11398: while (my ($file_name,$value) = each(%{$current_permissions})) { 11399: if (defined($group)) { 11400: if ($file_name !~ m-^\Q$group\E/-) { 11401: next; 11402: } 11403: } 11404: if (ref($value) eq "ARRAY"){ 11405: foreach my $stored_what (@{$value}) { 11406: if (ref($stored_what) eq 'ARRAY') { 11407: foreach my $lock_descriptor(@{$stored_what}) { 11408: if ($lock_descriptor eq 'graded') { 11409: $readonly_files{$file_name} = 'graded'; 11410: } elsif ($lock_descriptor eq 'handback') { 11411: $readonly_files{$file_name} = 'handback'; 11412: } else { 11413: if (!exists($readonly_files{$file_name})) { 11414: $readonly_files{$file_name} = 'locked'; 11415: } 11416: } 11417: } 11418: } 11419: } 11420: } 11421: } 11422: return %readonly_files; 11423: } 11424: # ------------------------------------------------------------ Unmark as Read Only 11425: 11426: sub unmark_as_readonly { 11427: # unmarks $file_name (if $file_name is defined), or all files locked by $what 11428: # for portfolio submissions, $what contains [$symb,$crsid] 11429: my ($domain,$user,$what,$file_name,$group) = @_; 11430: $file_name = &declutter_portfile($file_name); 11431: my $symb_crs = $what; 11432: if (ref($what)) { $symb_crs=join('',@$what); } 11433: my %current_permissions = &dump('file_permissions',$domain,$user,$group); 11434: my ($tmp)=keys(%current_permissions); 11435: if ($tmp=~/^error:/) { undef(%current_permissions); } 11436: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group); 11437: foreach my $file (@readonly_files) { 11438: my $clean_file = &declutter_portfile($file); 11439: if (defined($file_name) && ($file_name ne $clean_file)) { next; } 11440: my $current_locks = $current_permissions{$file}; 11441: my @new_locks; 11442: my @del_keys; 11443: if (ref($current_locks) eq "ARRAY"){ 11444: foreach my $locker (@{$current_locks}) { 11445: my $compare=$locker; 11446: if (ref($locker) eq 'ARRAY') { 11447: $compare=join('',@{$locker}); 11448: if ($compare ne $symb_crs) { 11449: push(@new_locks, $locker); 11450: } 11451: } 11452: } 11453: if (scalar(@new_locks) > 0) { 11454: $current_permissions{$file} = \@new_locks; 11455: } else { 11456: push(@del_keys, $file); 11457: &del('file_permissions',\@del_keys, $domain, $user); 11458: delete($current_permissions{$file}); 11459: } 11460: } 11461: } 11462: &put('file_permissions',\%current_permissions,$domain,$user); 11463: return; 11464: } 11465: 11466: # ------------------------------------------------------------ Directory lister 11467: 11468: sub dirlist { 11469: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_; 11470: $uri=~s/^\///; 11471: $uri=~s/\/$//; 11472: my ($udom, $uname); 11473: if ($getuserdir) { 11474: $udom = $userdomain; 11475: $uname = $username; 11476: } else { 11477: (undef,$udom,$uname)=split(/\//,$uri); 11478: if(defined($userdomain)) { 11479: $udom = $userdomain; 11480: } 11481: if(defined($username)) { 11482: $uname = $username; 11483: } 11484: } 11485: my ($dirRoot,$listing,@listing_results); 11486: 11487: $dirRoot = $perlvar{'lonDocRoot'}; 11488: if (defined($getpropath)) { 11489: $dirRoot = &propath($udom,$uname); 11490: $dirRoot =~ s/\/$//; 11491: } elsif (defined($getuserdir)) { 11492: my $subdir=$uname.'__'; 11493: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; 11494: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'} 11495: ."/$udom/$subdir/$uname"; 11496: } elsif (defined($alternateRoot)) { 11497: $dirRoot = $alternateRoot; 11498: } 11499: 11500: if($udom) { 11501: if($uname) { 11502: my $uhome = &homeserver($uname,$udom); 11503: if ($uhome eq 'no_host') { 11504: return ([],'no_host'); 11505: } 11506: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':' 11507: .$getuserdir.':'.&escape($dirRoot) 11508: .':'.&escape($uname).':'.&escape($udom),$uhome); 11509: if ($listing eq 'unknown_cmd') { 11510: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome); 11511: } else { 11512: @listing_results = map { &unescape($_); } split(/:/,$listing); 11513: } 11514: if ($listing eq 'unknown_cmd') { 11515: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome); 11516: @listing_results = split(/:/,$listing); 11517: } else { 11518: @listing_results = map { &unescape($_); } split(/:/,$listing); 11519: } 11520: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || 11521: ($listing eq 'rejected') || ($listing eq 'refused') || 11522: ($listing eq 'no_such_dir') || ($listing eq 'empty')) { 11523: return ([],$listing); 11524: } else { 11525: return (\@listing_results); 11526: } 11527: } elsif(!$alternateRoot) { 11528: my (%allusers,%listerror); 11529: my %servers = &get_servers($udom,'library'); 11530: foreach my $tryserver (keys(%servers)) { 11531: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'. 11532: &escape($udom),$tryserver); 11533: if ($listing eq 'unknown_cmd') { 11534: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'. 11535: $udom, $tryserver); 11536: } else { 11537: @listing_results = map { &unescape($_); } split(/:/,$listing); 11538: } 11539: if ($listing eq 'unknown_cmd') { 11540: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'. 11541: $udom, $tryserver); 11542: @listing_results = split(/:/,$listing); 11543: } else { 11544: @listing_results = 11545: map { &unescape($_); } split(/:/,$listing); 11546: } 11547: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || 11548: ($listing eq 'rejected') || ($listing eq 'refused') || 11549: ($listing eq 'no_such_dir') || ($listing eq 'empty')) { 11550: $listerror{$tryserver} = $listing; 11551: } else { 11552: foreach my $line (@listing_results) { 11553: my ($entry) = split(/&/,$line,2); 11554: $allusers{$entry} = 1; 11555: } 11556: } 11557: } 11558: my @alluserslist=(); 11559: foreach my $user (sort(keys(%allusers))) { 11560: push(@alluserslist,$user.'&user'); 11561: } 11562: 11563: if (!%listerror) { 11564: # no errors 11565: return (\@alluserslist); 11566: } elsif (scalar(keys(%servers)) == 1) { 11567: # one library server, one error 11568: my ($key) = keys(%listerror); 11569: return (\@alluserslist, $listerror{$key}); 11570: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) { 11571: # con_lost indicates that we might miss data from at least one 11572: # library server 11573: return (\@alluserslist, 'con_lost'); 11574: } else { 11575: # multiple library servers and no con_lost -> data should be 11576: # complete. 11577: return (\@alluserslist); 11578: } 11579: 11580: } else { 11581: return ([],'missing username'); 11582: } 11583: } elsif(!defined($getpropath)) { 11584: my $path = $perlvar{'lonDocRoot'}.'/res/'; 11585: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains())); 11586: return (\@all_domains); 11587: } else { 11588: return ([],'missing domain'); 11589: } 11590: } 11591: 11592: # --------------------------------------------- GetFileTimestamp 11593: # This function utilizes dirlist and returns the date stamp for 11594: # when it was last modified. It will also return an error of -1 11595: # if an error occurs 11596: 11597: sub GetFileTimestamp { 11598: my ($studentDomain,$studentName,$filename,$getuserdir)=@_; 11599: $studentDomain = &LONCAPA::clean_domain($studentDomain); 11600: $studentName = &LONCAPA::clean_username($studentName); 11601: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName, 11602: undef,$getuserdir); 11603: if (($error eq 'empty') || ($error eq 'no_such_dir')) { 11604: return -1; 11605: } 11606: if (ref($fileref) eq 'ARRAY') { 11607: my @stats = split('&',$fileref->[0]); 11608: # @stats contains first the filename, then the stat output 11609: return $stats[10]; # so this is 10 instead of 9. 11610: } else { 11611: return -1; 11612: } 11613: } 11614: 11615: sub stat_file { 11616: my ($uri) = @_; 11617: $uri = &clutter_with_no_wrapper($uri); 11618: 11619: my ($udom,$uname,$file); 11620: if ($uri =~ m-^/(uploaded|editupload)/-) { 11621: ($udom,$uname,$file) = 11622: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-); 11623: $file = 'userfiles/'.$file; 11624: } 11625: if ($uri =~ m-^/res/-) { 11626: ($udom,$uname) = 11627: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-); 11628: $file = $uri; 11629: } 11630: 11631: if (!$udom || !$uname || !$file) { 11632: # unable to handle the uri 11633: return (); 11634: } 11635: my $getpropath; 11636: if ($file =~ /^userfiles\//) { 11637: $getpropath = 1; 11638: } 11639: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath); 11640: if (($error eq 'empty') || ($error eq 'no_such_dir')) { 11641: return (); 11642: } else { 11643: if (ref($listref) eq 'ARRAY') { 11644: my @stats = split('&',$listref->[0]); 11645: shift(@stats); #filename is first 11646: return @stats; 11647: } 11648: } 11649: return (); 11650: } 11651: 11652: # --------------------------------------------------------- recursedirs 11653: # Recursive function to traverse either a specific user's Authoring Space 11654: # or corresponding Published Resource Space, and populate the hash ref: 11655: # $dirhashref with URLs of all directories, and if $filehashref hash 11656: # ref arg is provided, the URLs of any files, excluding versioned, .meta, 11657: # or .rights files in resource space, and .meta, .save, .log, and .bak 11658: # files in Authoring Space. 11659: # 11660: # Inputs: 11661: # 11662: # $is_home - true if current server is home server for user's space 11663: # $context - either: priv, or res respectively for Authoring or Resource Space. 11664: # $docroot - Document root (i.e., /home/httpd/html 11665: # $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname 11666: # $relpath - Current path (relative to top level). 11667: # $dirhashref - reference to hash to populate with URLs of directories (Required) 11668: # $filehashref - reference to hash to populate with URLs of files (Optional) 11669: # 11670: # Returns: nothing 11671: # 11672: # Side Effects: populates $dirhashref, and $filehashref (if provided). 11673: # 11674: # Currently used by interface/londocs.pm to create linked select boxes for 11675: # directory and filename to import a Course "Author" resource into a course, and 11676: # also to create linked select boxes for Authoring Space and Directory to choose 11677: # save location for creation of a new "standard" problem from the Course Editor. 11678: # 11679: 11680: sub recursedirs { 11681: my ($is_home,$context,$docroot,$toppath,$relpath,$dirhashref,$filehashref) = @_; 11682: return unless (ref($dirhashref) eq 'HASH'); 11683: my $currpath = $docroot.$toppath; 11684: if ($relpath) { 11685: $currpath .= "/$relpath"; 11686: } 11687: my $savefile; 11688: if (ref($filehashref)) { 11689: $savefile = 1; 11690: } 11691: if ($is_home) { 11692: if (opendir(my $dirh,$currpath)) { 11693: foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) { 11694: next if ($item eq ''); 11695: if (-d "$currpath/$item") { 11696: my $newpath; 11697: if ($relpath) { 11698: $newpath = "$relpath/$item"; 11699: } else { 11700: $newpath = $item; 11701: } 11702: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; 11703: &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref); 11704: } elsif ($savefile) { 11705: if ($context eq 'priv') { 11706: unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) { 11707: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; 11708: } 11709: } else { 11710: unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/) || ($item =~ /\.rights$/)) { 11711: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; 11712: } 11713: } 11714: } 11715: } 11716: closedir($dirh); 11717: } 11718: } else { 11719: my ($dirlistref,$listerror) = 11720: &dirlist($toppath.$relpath); 11721: my @dir_lines; 11722: my $dirptr=16384; 11723: if (ref($dirlistref) eq 'ARRAY') { 11724: foreach my $dir_line (sort 11725: { 11726: my ($afile)=split('&',$a,2); 11727: my ($bfile)=split('&',$b,2); 11728: return (lc($afile) cmp lc($bfile)); 11729: } (@{$dirlistref})) { 11730: my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) = 11731: split(/\&/,$dir_line,16); 11732: $item =~ s/\s+$//; 11733: next if (($item =~ /^\.\.?$/) || ($obs)); 11734: if ($dirptr&$testdir) { 11735: my $newpath; 11736: if ($relpath) { 11737: $newpath = "$relpath/$item"; 11738: } else { 11739: $relpath = '/'; 11740: $newpath = $item; 11741: } 11742: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; 11743: &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref); 11744: } elsif ($savefile) { 11745: if ($context eq 'priv') { 11746: unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) { 11747: $filehashref->{$relpath}{$item} = 1; 11748: } 11749: } else { 11750: unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/)) { 11751: $filehashref->{$relpath}{$item} = 1; 11752: } 11753: } 11754: } 11755: } 11756: } 11757: } 11758: return; 11759: } 11760: 11761: # -------------------------------------------------------- Value of a Condition 11762: 11763: # gets the value of a specific preevaluated condition 11764: # stored in the string $env{user.state.<cid>} 11765: # or looks up a condition reference in the bighash and if if hasn't 11766: # already been evaluated recurses into docondval to get the value of 11767: # the condition, then memoizing it to 11768: # $env{user.state.<cid>.<condition>} 11769: sub directcondval { 11770: my $number=shift; 11771: if (!defined($env{'user.state.'.$env{'request.course.id'}})) { 11772: &Apache::lonuserstate::evalstate(); 11773: } 11774: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) { 11775: return $env{'user.state.'.$env{'request.course.id'}.".$number"}; 11776: } elsif ($number =~ /^_/) { 11777: my $sub_condition; 11778: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 11779: &GDBM_READER(),0640)) { 11780: $sub_condition=$bighash{'conditions'.$number}; 11781: untie(%bighash); 11782: } 11783: my $value = &docondval($sub_condition); 11784: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value}); 11785: return $value; 11786: } 11787: if ($env{'user.state.'.$env{'request.course.id'}}) { 11788: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1); 11789: } else { 11790: return 2; 11791: } 11792: } 11793: 11794: # get the collection of conditions for this resource 11795: sub condval { 11796: my $condidx=shift; 11797: my $allpathcond=''; 11798: foreach my $cond (split(/\|/,$condidx)) { 11799: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) { 11800: $allpathcond.= 11801: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|'; 11802: } 11803: } 11804: $allpathcond=~s/\|$//; 11805: return &docondval($allpathcond); 11806: } 11807: 11808: #evaluates an expression of conditions 11809: sub docondval { 11810: my ($allpathcond) = @_; 11811: my $result=0; 11812: if ($env{'request.course.id'} 11813: && defined($allpathcond)) { 11814: my $operand='|'; 11815: my @stack; 11816: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|$|$|\&|\|)/g) { 11817: if ($chunk eq '(') { 11818: push @stack,($operand,$result); 11819: } elsif ($chunk eq ')') { 11820: my $before=pop @stack; 11821: if (pop @stack eq '&') { 11822: $result=$result>$before?$before:$result; 11823: } else { 11824: $result=$result>$before?$result:$before; 11825: } 11826: } elsif (($chunk eq '&') || ($chunk eq '|')) { 11827: $operand=$chunk; 11828: } else { 11829: my $new=directcondval($chunk); 11830: if ($operand eq '&') { 11831: $result=$result>$new?$new:$result; 11832: } else { 11833: $result=$result>$new?$result:$new; 11834: } 11835: } 11836: } 11837: } 11838: return $result; 11839: } 11840: 11841: # ---------------------------------------------------- Devalidate courseresdata 11842: 11843: sub devalidatecourseresdata { 11844: my ($coursenum,$coursedomain)=@_; 11845: my $hashid=$coursenum.':'.$coursedomain; 11846: &devalidate_cache_new('courseres',$hashid); 11847: } 11848: 11849: 11850: # --------------------------------------------------- Course Resourcedata Query 11851: # 11852: # Parameters: 11853: # $coursenum - Number of the course. 11854: # $coursedomain - Domain at which the course was created. 11855: # Returns: 11856: # A hash of the course parameters along (I think) with timestamps 11857: # and version info. 11858: 11859: sub get_courseresdata { 11860: my ($coursenum,$coursedomain)=@_; 11861: my $coursehom=&homeserver($coursenum,$coursedomain); 11862: my $hashid=$coursenum.':'.$coursedomain; 11863: my ($result,$cached)=&is_cached_new('courseres',$hashid); 11864: my %dumpreply; 11865: unless (defined($cached)) { 11866: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum); 11867: $result=\%dumpreply; 11868: my ($tmp) = keys(%dumpreply); 11869: if ($tmp !~ /^(con_lost|error|no_such_host)/i) { 11870: &do_cache_new('courseres',$hashid,$result,600); 11871: } elsif ($tmp =~ /^(con_lost|no_such_host)/) { 11872: return $tmp; 11873: } elsif ($tmp =~ /^(error)/) { 11874: $result=undef; 11875: &do_cache_new('courseres',$hashid,$result,600); 11876: } 11877: } 11878: return $result; 11879: } 11880: 11881: sub devalidateuserresdata { 11882: my ($uname,$udom)=@_; 11883: my $hashid="$udom:$uname"; 11884: &devalidate_cache_new('userres',$hashid); 11885: } 11886: 11887: sub get_userresdata { 11888: my ($uname,$udom)=@_; 11889: #most student don\'t have any data set, check if there is some data 11890: if (&EXT_cache_status($udom,$uname)) { return undef; } 11891: 11892: my $hashid="$udom:$uname"; 11893: my ($result,$cached)=&is_cached_new('userres',$hashid); 11894: if (!defined($cached)) { 11895: my %resourcedata=&dump('resourcedata',$udom,$uname); 11896: $result=\%resourcedata; 11897: &do_cache_new('userres',$hashid,$result,600); 11898: } 11899: my ($tmp)=keys(%$result); 11900: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) { 11901: return $result; 11902: } 11903: #error 2 occurs when the .db doesn't exist 11904: if ($tmp!~/error: 2 /) { 11905: if ((!defined($cached)) || ($tmp ne 'con_lost')) { 11906: &logthis("WARNING:". 11907: " Trying to get resource data for ". 11908: $uname." at ".$udom.": ". 11909: $tmp.""); 11910: } 11911: } elsif ($tmp=~/error: 2 /) { 11912: #&EXT_cache_set($udom,$uname); 11913: &do_cache_new('userres',$hashid,undef,600); 11914: undef($tmp); # not really an error so don't send it back 11915: } 11916: return $tmp; 11917: } 11918: #----------------------------------------------- resdata - return resource data 11919: # Purpose: 11920: # Return resource data for either users or for a course. 11921: # Parameters: 11922: # $name - Course/user name. 11923: # $domain - Name of the domain the user/course is registered on. 11924: # $type - Type of thing $name is (must be 'course' or 'user') 11925: # $mapp - decluttered URL of enclosing map 11926: # $recursed - Ref to scalar -- set to 1, if nested maps have been recursed. 11927: # $recurseup - Ref to array of map URLs, starting with map containing 11928: # $mapp up through hierarchy of nested maps to top level map. 11929: # $courseid - CourseID (first part of param identifier). 11930: # $modifier - Middle part of param identifier. 11931: # $what - Last part of param identifier. 11932: # @which - Array of names of resources desired. 11933: # Returns: 11934: # The value of the first reasource in @which that is found in the 11935: # resource hash. 11936: # Exceptional Conditions: 11937: # If the $type passed in is not valid (not the string 'course' or 11938: # 'user', an undefined reference is returned. 11939: # If none of the resources are found, an undef is returned 11940: sub resdata { 11941: my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid, 11942: $modifier,$what,@which)=@_; 11943: my $result; 11944: if ($type eq 'course') { 11945: $result=&get_courseresdata($name,$domain); 11946: } elsif ($type eq 'user') { 11947: $result=&get_userresdata($name,$domain); 11948: } 11949: if (!ref($result)) { return $result; } 11950: foreach my $item (@which) { 11951: if ($item->[1] eq 'course') { 11952: if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) { 11953: unless ($$recursed) { 11954: @{$recurseup} = &get_map_hierarchy($mapp,$courseid); 11955: $$recursed = 1; 11956: } 11957: foreach my $item (@${recurseup}) { 11958: my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what; 11959: last if (defined($result->{$norecursechk})); 11960: my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what; 11961: if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; } 11962: } 11963: } 11964: } 11965: if (defined($result->{$item->[0]})) { 11966: return [$result->{$item->[0]},$item->[1]]; 11967: } 11968: } 11969: return undef; 11970: } 11971: 11972: sub get_domain_lti { 11973: my ($cdom,$context) = @_; 11974: my ($name,%lti); 11975: if ($context eq 'consumer') { 11976: $name = 'ltitools'; 11977: } elsif ($context eq 'provider') { 11978: $name = 'lti'; 11979: } else { 11980: return %lti; 11981: } 11982: my ($result,$cached)=&is_cached_new($name,$cdom); 11983: if (defined($cached)) { 11984: if (ref($result) eq 'HASH') { 11985: %lti = %{$result}; 11986: } 11987: } else { 11988: my %domconfig = &get_dom('configuration',[$name],$cdom); 11989: if (ref($domconfig{$name}) eq 'HASH') { 11990: %lti = %{$domconfig{$name}}; 11991: my %encdomconfig = &get_dom('encconfig',[$name],$cdom); 11992: if (ref($encdomconfig{$name}) eq 'HASH') { 11993: foreach my $id (keys(%lti)) { 11994: if (ref($encdomconfig{$name}{$id}) eq 'HASH') { 11995: foreach my $item ('key','secret') { 11996: $lti{$id}{$item} = $encdomconfig{$name}{$id}{$item}; 11997: } 11998: } 11999: } 12000: } 12001: } 12002: my $cachetime = 24*60*60; 12003: &do_cache_new($name,$cdom,\%lti,$cachetime); 12004: } 12005: return %lti; 12006: } 12007: 12008: sub get_numsuppfiles { 12009: my ($cnum,$cdom,$ignorecache)=@_; 12010: my $hashid=$cnum.':'.$cdom; 12011: my ($suppcount,$cached); 12012: unless ($ignorecache) { 12013: ($suppcount,$cached) = &is_cached_new('suppcount',$hashid); 12014: } 12015: unless (defined($cached)) { 12016: my $chome=&homeserver($cnum,$cdom); 12017: unless ($chome eq 'no_host') { 12018: ($suppcount,my $supptools,my $errors) = (0,0,0); 12019: my $suppmap = 'supplemental.sequence'; 12020: ($suppcount,$supptools,$errors) = 12021: &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount, 12022: $supptools,$errors); 12023: } 12024: &do_cache_new('suppcount',$hashid,$suppcount,600); 12025: } 12026: return $suppcount; 12027: } 12028: 12029: # 12030: # EXT resource caching routines 12031: # 12032: 12033: { 12034: # Cache (5 seconds) of map hierarchy for speedup of navmaps display 12035: # 12036: # The course for which we cache 12037: my $cachedmapkey=''; 12038: # The cached recursive maps for this course 12039: my %cachedmaps=(); 12040: # When this was last done 12041: my $cachedmaptime=''; 12042: 12043: sub clear_EXT_cache_status { 12044: &delenv('cache.EXT.'); 12045: } 12046: 12047: sub EXT_cache_status { 12048: my ($target_domain,$target_user) = @_; 12049: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; 12050: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) { 12051: # We know already the user has no data 12052: return 1; 12053: } else { 12054: return 0; 12055: } 12056: } 12057: 12058: sub EXT_cache_set { 12059: my ($target_domain,$target_user) = @_; 12060: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; 12061: #&appenv({$cachename => time}); 12062: } 12063: 12064: # --------------------------------------------------------- Value of a Variable 12065: sub EXT { 12066: 12067: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_; 12068: unless ($varname) { return ''; } 12069: #get real user name/domain, courseid and symb 12070: my $courseid; 12071: my $publicuser; 12072: if ($symbparm) { 12073: $symbparm=&get_symb_from_alias($symbparm); 12074: } 12075: if (!($uname && $udom)) { 12076: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm); 12077: if (!$symbparm) { $symbparm=$cursymb; } 12078: } else { 12079: $courseid=$env{'request.course.id'}; 12080: } 12081: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname); 12082: my $rest; 12083: if (defined($therest[0])) { 12084: $rest=join('.',@therest); 12085: } else { 12086: $rest=''; 12087: } 12088: 12089: my $qualifierrest=$qualifier; 12090: if ($rest) { $qualifierrest.='.'.$rest; } 12091: my $spacequalifierrest=$space; 12092: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; } 12093: if ($realm eq 'user') { 12094: # --------------------------------------------------------------- user.resource 12095: if ($space eq 'resource') { 12096: if ( (defined($Apache::lonhomework::parsing_a_problem) 12097: || defined($Apache::lonhomework::parsing_a_task)) 12098: && 12099: ($symbparm eq &symbread()) ) { 12100: # if we are in the middle of processing the resource the 12101: # get the value we are planning on committing 12102: if (defined($Apache::lonhomework::results{$qualifierrest})) { 12103: return $Apache::lonhomework::results{$qualifierrest}; 12104: } else { 12105: return $Apache::lonhomework::history{$qualifierrest}; 12106: } 12107: } else { 12108: my %restored; 12109: if ($publicuser || $env{'request.state'} eq 'construct') { 12110: %restored=&tmprestore($symbparm,$courseid,$udom,$uname); 12111: } else { 12112: %restored=&restore($symbparm,$courseid,$udom,$uname); 12113: } 12114: return $restored{$qualifierrest}; 12115: } 12116: # ----------------------------------------------------------------- user.access 12117: } elsif ($space eq 'access') { 12118: # FIXME - not supporting calls for a specific user 12119: return &allowed($qualifier,$rest); 12120: # ------------------------------------------ user.preferences, user.environment 12121: } elsif (($space eq 'preferences') || ($space eq 'environment')) { 12122: if (($uname eq $env{'user.name'}) && 12123: ($udom eq $env{'user.domain'})) { 12124: return $env{join('.',('environment',$qualifierrest))}; 12125: } else { 12126: my %returnhash; 12127: if (!$publicuser) { 12128: %returnhash=&userenvironment($udom,$uname, 12129: $qualifierrest); 12130: } 12131: return $returnhash{$qualifierrest}; 12132: } 12133: # ----------------------------------------------------------------- user.course 12134: } elsif ($space eq 'course') { 12135: # FIXME - not supporting calls for a specific user 12136: return $env{join('.',('request.course',$qualifier))}; 12137: # ------------------------------------------------------------------- user.role 12138: } elsif ($space eq 'role') { 12139: # FIXME - not supporting calls for a specific user 12140: my ($role,$where)=split(/\./,$env{'request.role'}); 12141: if ($qualifier eq 'value') { 12142: return $role; 12143: } elsif ($qualifier eq 'extent') { 12144: return $where; 12145: } 12146: # ----------------------------------------------------------------- user.domain 12147: } elsif ($space eq 'domain') { 12148: return $udom; 12149: # ------------------------------------------------------------------- user.name 12150: } elsif ($space eq 'name') { 12151: return $uname; 12152: # ---------------------------------------------------- Any other user namespace 12153: } else { 12154: my %reply; 12155: if (!$publicuser) { 12156: %reply=&get($space,[$qualifierrest],$udom,$uname); 12157: } 12158: return $reply{$qualifierrest}; 12159: } 12160: } elsif ($realm eq 'query') { 12161: # ---------------------------------------------- pull stuff out of query string 12162: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 12163: [$spacequalifierrest]); 12164: return $env{'form.'.$spacequalifierrest}; 12165: } elsif ($realm eq 'request') { 12166: # ------------------------------------------------------------- request.browser 12167: if ($space eq 'browser') { 12168: return $env{'browser.'.$qualifier}; 12169: # ------------------------------------------------------------ request.filename 12170: } else { 12171: return $env{'request.'.$spacequalifierrest}; 12172: } 12173: } elsif ($realm eq 'course') { 12174: # ---------------------------------------------------------- course.description 12175: return $env{'course.'.$courseid.'.'.$spacequalifierrest}; 12176: } elsif ($realm eq 'resource') { 12177: 12178: if (defined($courseid) && $courseid eq $env{'request.course.id'}) { 12179: if (!$symbparm) { $symbparm=&symbread(); } 12180: } 12181: 12182: if ($qualifier eq '') { 12183: if ($space eq 'title') { 12184: if (!$symbparm) { $symbparm = $env{'request.filename'}; } 12185: return &gettitle($symbparm); 12186: } 12187: 12188: if ($space eq 'map') { 12189: my ($map) = &decode_symb($symbparm); 12190: return &symbread($map); 12191: } 12192: if ($space eq 'maptitle') { 12193: my ($map) = &decode_symb($symbparm); 12194: return &gettitle($map); 12195: } 12196: if ($space eq 'filename') { 12197: if ($symbparm) { 12198: return &clutter((&decode_symb($symbparm))[2]); 12199: } 12200: return &hreflocation('',$env{'request.filename'}); 12201: } 12202: 12203: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) { 12204: if ($space eq 'visibleparts') { 12205: my $navmap = Apache::lonnavmaps::navmap->new(); 12206: my $item; 12207: if (ref($navmap)) { 12208: my $res = $navmap->getBySymb($symbparm); 12209: my $parts = $res->parts(); 12210: if (ref($parts) eq 'ARRAY') { 12211: $item = join(',',@{$parts}); 12212: } 12213: undef($navmap); 12214: } 12215: return $item; 12216: } 12217: } 12218: } 12219: 12220: my ($section, $group, @groups, @recurseup, $recursed); 12221: my ($courselevelm,$courseleveli,$courselevel,$mapp); 12222: if (($courseid eq '') && ($cid)) { 12223: $courseid = $cid; 12224: } 12225: if (($symbparm && $courseid) && 12226: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) { 12227: 12228: #print ' '.$space.' - '.$qualifier.' - '.$spacequalifierrest; 12229: 12230: # ----------------------------------------------------- Cascading lookup scheme 12231: my $symbp=$symbparm; 12232: $mapp=&deversion((&decode_symb($symbp))[0]); 12233: my $symbparm=$symbp.'.'.$spacequalifierrest; 12234: my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest; 12235: my $mapparm=$mapp.'___(all).'.$spacequalifierrest; 12236: if (($env{'user.name'} eq $uname) && 12237: ($env{'user.domain'} eq $udom)) { 12238: $section=$env{'request.course.sec'}; 12239: @groups = split(/:/,$env{'request.course.groups'}); 12240: @groups=&sort_course_groups($courseid,@groups); 12241: } else { 12242: if (! defined($usection)) { 12243: $section=&getsection($udom,$uname,$courseid); 12244: } else { 12245: $section = $usection; 12246: } 12247: @groups = &get_users_groups($udom,$uname,$courseid); 12248: } 12249: 12250: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest; 12251: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm; 12252: my $secleveli=$courseid.'.['.$section.'].'.$recurseparm; 12253: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm; 12254: 12255: $courselevel=$courseid.'.'.$spacequalifierrest; 12256: my $courselevelr=$courseid.'.'.$symbparm; 12257: $courseleveli=$courseid.'.'.$recurseparm; 12258: $courselevelm=$courseid.'.'.$mapparm; 12259: 12260: # ----------------------------------------------------------- first, check user 12261: 12262: my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed, 12263: \@recurseup,$courseid,'.',$spacequalifierrest, 12264: ([$courselevelr,'resource'], 12265: [$courselevelm,'map' ], 12266: [$courseleveli,'map' ], 12267: [$courselevel, 'course' ])); 12268: if (defined($userreply)) { return &get_reply($userreply); } 12269: 12270: # ------------------------------------------------ second, check some of course 12271: my $coursereply; 12272: if (@groups > 0) { 12273: $coursereply = &check_group_parms($courseid,\@groups,$symbparm, 12274: $recurseparm,$mapparm,$spacequalifierrest, 12275: $mapp,\$recursed,\@recurseup); 12276: if (defined($coursereply)) { return &get_reply($coursereply); } 12277: } 12278: 12279: $coursereply=&resdata($env{'course.'.$courseid.'.num'}, 12280: $env{'course.'.$courseid.'.domain'}, 12281: 'course',$mapp,\$recursed,\@recurseup, 12282: $courseid,'.['.$section.'].',$spacequalifierrest, 12283: ([$seclevelr, 'resource'], 12284: [$seclevelm, 'map' ], 12285: [$secleveli, 'map' ], 12286: [$seclevel, 'course' ], 12287: [$courselevelr,'resource'])); 12288: if (defined($coursereply)) { return &get_reply($coursereply); } 12289: 12290: # ------------------------------------------------------ third, check map parms 12291: my %parmhash=(); 12292: my $thisparm=''; 12293: if (tie(%parmhash,'GDBM_File', 12294: $env{'request.course.fn'}.'_parms.db', 12295: &GDBM_READER(),0640)) { 12296: $thisparm=$parmhash{$symbparm}; 12297: untie(%parmhash); 12298: } 12299: if ($thisparm) { return &get_reply([$thisparm,'resource']); } 12300: } 12301: # ------------------------------------------ fourth, look in resource metadata 12302: 12303: my $what = $spacequalifierrest; 12304: $what=~s/\./\_/; 12305: my $filename; 12306: if (!$symbparm) { $symbparm=&symbread(); } 12307: if ($symbparm) { 12308: $filename=(&decode_symb($symbparm))[2]; 12309: } else { 12310: $filename=$env{'request.filename'}; 12311: } 12312: my $toolsymb; 12313: if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) { 12314: $toolsymb = $symbparm; 12315: } 12316: my $metadata=&metadata($filename,$what,$toolsymb); 12317: if (defined($metadata)) { return &get_reply([$metadata,'resource']); } 12318: $metadata=&metadata($filename,'parameter_'.$what,$toolsymb); 12319: if (defined($metadata)) { return &get_reply([$metadata,'resource']); } 12320: 12321: # ----------------------------------------------- fifth, look in rest of course 12322: if ($symbparm && defined($courseid) && 12323: $courseid eq $env{'request.course.id'}) { 12324: my $coursereply=&resdata($env{'course.'.$courseid.'.num'}, 12325: $env{'course.'.$courseid.'.domain'}, 12326: 'course',$mapp,\$recursed,\@recurseup, 12327: $courseid,'.',$spacequalifierrest, 12328: ([$courselevelm,'map' ], 12329: [$courseleveli,'map' ], 12330: [$courselevel, 'course'])); 12331: if (defined($coursereply)) { return &get_reply($coursereply); } 12332: } 12333: # ------------------------------------------------------------------ Cascade up 12334: unless ($space eq '0') { 12335: my @parts=split(/_/,$space); 12336: my $id=pop(@parts); 12337: my $part=join('_',@parts); 12338: if ($part eq '') { $part='0'; } 12339: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest, 12340: $symbparm,$udom,$uname,$section,1); 12341: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); } 12342: } 12343: if ($recurse) { return undef; } 12344: my $pack_def=&packages_tab_default($filename,$varname,$toolsymb); 12345: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); } 12346: # ---------------------------------------------------- Any other user namespace 12347: } elsif ($realm eq 'environment') { 12348: # ----------------------------------------------------------------- environment 12349: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) { 12350: return $env{'environment.'.$spacequalifierrest}; 12351: } else { 12352: if ($uname eq 'anonymous' && $udom eq '') { 12353: return ''; 12354: } 12355: my %returnhash=&userenvironment($udom,$uname, 12356: $spacequalifierrest); 12357: return $returnhash{$spacequalifierrest}; 12358: } 12359: } elsif ($realm eq 'system') { 12360: # ----------------------------------------------------------------- system.time 12361: if ($space eq 'time') { 12362: return time; 12363: } 12364: } elsif ($realm eq 'server') { 12365: # ----------------------------------------------------------------- system.time 12366: if ($space eq 'name') { 12367: return $ENV{'SERVER_NAME'}; 12368: } 12369: } elsif ($realm eq 'client') { 12370: if ($space eq 'remote_addr') { 12371: return $ENV{'REMOTE_ADDR'}; 12372: } 12373: } 12374: return ''; 12375: } 12376: 12377: sub get_reply { 12378: my ($reply_value) = @_; 12379: if (ref($reply_value) eq 'ARRAY') { 12380: if (wantarray) { 12381: return @$reply_value; 12382: } 12383: return $reply_value->[0]; 12384: } else { 12385: return $reply_value; 12386: } 12387: } 12388: 12389: sub check_group_parms { 12390: my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp, 12391: $recursed,$recurseupref) = @_; 12392: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'], 12393: [$what,'course']); 12394: my $coursereply; 12395: foreach my $group (@{$groups}) { 12396: my @groupitems = (); 12397: foreach my $level (@levels) { 12398: my $item = $courseid.'.['.$group.'].'.$level->[0]; 12399: push(@groupitems,[$item,$level->[1]]); 12400: } 12401: my $coursereply = &resdata($env{'course.'.$courseid.'.num'}, 12402: $env{'course.'.$courseid.'.domain'}, 12403: 'course',$mapp,$recursed,$recurseupref, 12404: $courseid,'.['.$group.'].',$what, 12405: @groupitems); 12406: last if (defined($coursereply)); 12407: } 12408: return $coursereply; 12409: } 12410: 12411: sub get_map_hierarchy { 12412: my ($mapname,$courseid) = @_; 12413: my @recurseup = (); 12414: if ($mapname) { 12415: if (($cachedmapkey eq $courseid) && 12416: (abs($cachedmaptime-time)<5)) { 12417: if (ref($cachedmaps{$mapname}) eq 'ARRAY') { 12418: return @{$cachedmaps{$mapname}}; 12419: } 12420: } 12421: my $navmap = Apache::lonnavmaps::navmap->new(); 12422: if (ref($navmap)) { 12423: @recurseup = $navmap->recurseup_maps($mapname); 12424: undef($navmap); 12425: $cachedmaps{$mapname} = \@recurseup; 12426: $cachedmaptime=time; 12427: $cachedmapkey=$courseid; 12428: } 12429: } 12430: return @recurseup; 12431: } 12432: 12433: } 12434: 12435: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort(). 12436: my ($courseid,@groups) = @_; 12437: @groups = sort(@groups); 12438: return @groups; 12439: } 12440: 12441: sub packages_tab_default { 12442: my ($uri,$varname,$toolsymb)=@_; 12443: my (undef,$part,$name)=split(/\./,$varname); 12444: 12445: my (@extension,@specifics,$do_default); 12446: foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) { 12447: my ($pack_type,$pack_part)=split(/_/,$package,2); 12448: if ($pack_type eq 'default') { 12449: $do_default=1; 12450: } elsif ($pack_type eq 'extension') { 12451: push(@extension,[$package,$pack_type,$pack_part]); 12452: } elsif ($pack_part eq $part || $pack_type eq 'part') { 12453: # only look at packages defaults for packages that this id is 12454: push(@specifics,[$package,$pack_type,$pack_part]); 12455: } 12456: } 12457: # first look for a package that matches the requested part id 12458: foreach my $package (@specifics) { 12459: my (undef,$pack_type,$pack_part)=@{$package}; 12460: next if ($pack_part ne $part); 12461: if (defined($packagetab{"$pack_type&$name&default"})) { 12462: return $packagetab{"$pack_type&$name&default"}; 12463: } 12464: } 12465: # look for any possible matching non extension_ package 12466: foreach my $package (@specifics) { 12467: my (undef,$pack_type,$pack_part)=@{$package}; 12468: if (defined($packagetab{"$pack_type&$name&default"})) { 12469: return $packagetab{"$pack_type&$name&default"}; 12470: } 12471: if ($pack_type eq 'part') { $pack_part='0'; } 12472: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) { 12473: return $packagetab{$pack_type."_".$pack_part."&$name&default"}; 12474: } 12475: } 12476: # look for any posible extension_ match 12477: foreach my $package (@extension) { 12478: my ($package,$pack_type)=@{$package}; 12479: if (defined($packagetab{"$pack_type&$name&default"})) { 12480: return $packagetab{"$pack_type&$name&default"}; 12481: } 12482: if (defined($packagetab{$package."&$name&default"})) { 12483: return $packagetab{$package."&$name&default"}; 12484: } 12485: } 12486: # look for a global default setting 12487: if ($do_default && defined($packagetab{"default&$name&default"})) { 12488: return $packagetab{"default&$name&default"}; 12489: } 12490: return undef; 12491: } 12492: 12493: sub add_prefix_and_part { 12494: my ($prefix,$part)=@_; 12495: my $keyroot; 12496: if (defined($prefix) && $prefix !~ /^__/) { 12497: # prefix that has a part already 12498: $keyroot=$prefix; 12499: } elsif (defined($prefix)) { 12500: # prefix that is missing a part 12501: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); } 12502: } else { 12503: # no prefix at all 12504: if (defined($part)) { $keyroot='_'.$part; } 12505: } 12506: return $keyroot; 12507: } 12508: 12509: # ---------------------------------------------------------------- Get metadata 12510: 12511: my %metaentry; 12512: my %importedpartids; 12513: my %importedrespids; 12514: sub metadata { 12515: my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_; 12516: $uri=&declutter($uri); 12517: # if it is a non metadata possible uri return quickly 12518: if (($uri eq '') || 12519: (($uri =~ m|^/*adm/|) && 12520: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) || 12521: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) { 12522: return undef; 12523: } 12524: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv}) 12525: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) { 12526: return undef; 12527: } 12528: my $filename=$uri; 12529: $uri=~s/\.meta$//; 12530: # 12531: # Is the metadata already cached? 12532: # Look at timestamp of caching 12533: # Everything is cached by the main uri, libraries are never directly cached 12534: # 12535: if (!defined($liburi)) { 12536: my ($result,$cached)=&is_cached_new('meta',$uri); 12537: if (defined($cached)) { return $result->{':'.$what}; } 12538: } 12539: 12540: # 12541: # If the uri is for an external tool the file from 12542: # which metadata should be retrieved depends on whether 12543: # the tool had been configured to be gradable (set in the Course 12544: # Editor or Resource Editor). 12545: # 12546: # If a valid symb has been included as the third arg in the call 12547: # to &metadata() that can be used to retrieve the value of 12548: # parameter_0_gradable set for the resource, and included in the 12549: # uploaded map containing the tool. The value is retrieved via 12550: # &EXT(), if a valid symb is available. Otherwise the value of 12551: # gradable in the exttool_$marker.db file for the tool instance 12552: # is retrieved via &get(). 12553: # 12554: # When lonuserstate::traceroute() calls lonnet::EXT() for 12555: # hiddenresource and encrypturl (during course initialization) 12556: # the map-level parameter for resource.0.gradable included in the 12557: # uploaded map containing the tool will not yet have been stored 12558: # in the user_course_parms.db file for the user's session, so in 12559: # this case fall back to retrieving gradable status from the 12560: # exttool_$marker.db file. 12561: # 12562: # In order to avoid an infinite loop, &metadata() will return 12563: # before a call to &EXT(), if the uri is for an external tool 12564: # and the $what for which metadata is being requested is 12565: # parameter_0_gradable or 0_gradable. 12566: # 12567: 12568: if ($uri =~ /ext\.tool$/) { 12569: if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) { 12570: return; 12571: } else { 12572: my ($checked,$use_passback); 12573: if ($toolsymb ne '') { 12574: (undef,undef,my $tooluri) = &decode_symb($toolsymb); 12575: if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) { 12576: $checked = 1; 12577: if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) { 12578: $use_passback = 1; 12579: } 12580: } 12581: } 12582: unless ($checked) { 12583: my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri); 12584: $marker=~s/\D//g; 12585: if ($marker) { 12586: my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum); 12587: $use_passback = $toolsettings{'gradable'}; 12588: } 12589: } 12590: if ($use_passback) { 12591: $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool'; 12592: } else { 12593: $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool'; 12594: } 12595: } 12596: } 12597: 12598: { 12599: # Imported parts would go here 12600: my @origfiletagids=(); 12601: my $importedparts=0; 12602: 12603: # Imported responseids would go here 12604: my $importedresponses=0; 12605: # 12606: # Is this a recursive call for a library? 12607: # 12608: # if (! exists($metacache{$uri})) { 12609: # $metacache{$uri}={}; 12610: # } 12611: my $cachetime = 60*60; 12612: if ($liburi) { 12613: $liburi=&declutter($liburi); 12614: $filename=$liburi; 12615: } else { 12616: &devalidate_cache_new('meta',$uri); 12617: undef(%metaentry); 12618: } 12619: my %metathesekeys=(); 12620: unless ($filename=~/\.meta$/) { $filename.='.meta'; } 12621: my $metastring; 12622: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) { 12623: my $which = &hreflocation('','/'.($liburi || $uri)); 12624: $metastring = 12625: &Apache::lonnet::ssi_body($which, 12626: ('grade_target' => 'meta')); 12627: $cachetime = 1; # only want this cached in the child not long term 12628: } elsif (($uri !~ m -^(editupload)/-) && 12629: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) { 12630: my $file=&filelocation('',&clutter($filename)); 12631: #push(@{$metaentry{$uri.'.file'}},$file); 12632: $metastring=&getfile($file); 12633: } 12634: my $parser=HTML::LCParser->new(\$metastring); 12635: my $token; 12636: undef %metathesekeys; 12637: while ($token=$parser->get_token) { 12638: if ($token->[0] eq 'S') { 12639: if (defined($token->[2]->{'package'})) { 12640: # 12641: # This is a package - get package info 12642: # 12643: my $package=$token->[2]->{'package'}; 12644: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'}); 12645: if (defined($token->[2]->{'id'})) { 12646: $keyroot.='_'.$token->[2]->{'id'}; 12647: } 12648: if ($metaentry{':packages'}) { 12649: $metaentry{':packages'}.=','.$package.$keyroot; 12650: } else { 12651: $metaentry{':packages'}=$package.$keyroot; 12652: } 12653: foreach my $pack_entry (keys(%packagetab)) { 12654: my $part=$keyroot; 12655: $part=~s/^\_//; 12656: if ($pack_entry=~/^\Q$package\E\&/ || 12657: $pack_entry=~/^\Q$package\E_0\&/) { 12658: my ($pack,$name,$subp)=split(/\&/,$pack_entry); 12659: # ignore package.tab specified default values 12660: # here &package_tab_default() will fetch those 12661: if ($subp eq 'default') { next; } 12662: my $value=$packagetab{$pack_entry}; 12663: my $unikey; 12664: if ($pack =~ /_0$/) { 12665: $unikey='parameter_0_'.$name; 12666: $part=0; 12667: } else { 12668: $unikey='parameter'.$keyroot.'_'.$name; 12669: } 12670: if ($subp eq 'display') { 12671: $value.=' [Part: '.$part.']'; 12672: } 12673: $metaentry{':'.$unikey.'.part'}=$part; 12674: $metathesekeys{$unikey}=1; 12675: unless (defined($metaentry{':'.$unikey.'.'.$subp})) { 12676: $metaentry{':'.$unikey.'.'.$subp}=$value; 12677: } 12678: if (defined($metaentry{':'.$unikey.'.default'})) { 12679: $metaentry{':'.$unikey}= 12680: $metaentry{':'.$unikey.'.default'}; 12681: } 12682: } 12683: } 12684: } else { 12685: # 12686: # This is not a package - some other kind of start tag 12687: # 12688: my $entry=$token->[1]; 12689: my $unikey=''; 12690: 12691: if ($entry eq 'import') { 12692: # 12693: # Importing a library here 12694: # 12695: my $location=$parser->get_text('/import'); 12696: my $dir=$filename; 12697: $dir=~s|[^/]*$||; 12698: $location=&filelocation($dir,$location); 12699: 12700: my $importid=$token->[2]->{'id'}; 12701: my $importmode=$token->[2]->{'importmode'}; 12702: # 12703: # Check metadata for imported file to 12704: # see if it contained response items 12705: # 12706: my ($origfile,@libfilekeys); 12707: my %currmetaentry = %metaentry; 12708: @libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef, 12709: $depthcount+1)); 12710: if (grep(/^responseorder$/,@libfilekeys)) { 12711: my $libresponseorder = &metadata($location,'responseorder',undef,undef, 12712: undef,$depthcount+1); 12713: if ($libresponseorder ne '') { 12714: if ($#origfiletagids<0) { 12715: undef(%importedrespids); 12716: undef(%importedpartids); 12717: } 12718: my @respids = split(/\s*,\s*/,$libresponseorder); 12719: if (@respids) { 12720: $importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids); 12721: } 12722: if ($importedrespids{$importid} ne '') { 12723: $importedresponses = 1; 12724: # We need to get the original file and the imported file to get the response order correct 12725: # Load and inspect original file 12726: if ($#origfiletagids<0) { 12727: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); 12728: $origfile=&getfile($origfilelocation); 12729: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 12730: } 12731: } 12732: } 12733: } 12734: # Do not overwrite contents of %metaentry hash for resource itself with 12735: # hash populated for imported library file 12736: %metaentry = %currmetaentry; 12737: undef(%currmetaentry); 12738: if ($importmode eq 'part') { 12739: # Import as part(s) 12740: $importedparts=1; 12741: # We need to get the original file and the imported file to get the part order correct 12742: # Good news: we do not need to worry about nested libraries, since parts cannot be nested 12743: # Load and inspect original file if we didn't do that already 12744: if ($#origfiletagids<0) { 12745: undef(%importedrespids); 12746: undef(%importedpartids); 12747: if ($origfile eq '') { 12748: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); 12749: $origfile=&getfile($origfilelocation); 12750: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 12751: } 12752: } 12753: my @impfilepartids; 12754: # If <partorder> tag is included in metadata for the imported file 12755: # get the parts in the imported file from that. 12756: if (grep(/^partorder$/,@libfilekeys)) { 12757: %currmetaentry = %metaentry; 12758: my $libpartorder = &metadata($location,'partorder',undef,undef,undef, 12759: $depthcount+1); 12760: %metaentry = %currmetaentry; 12761: undef(%currmetaentry); 12762: if ($libpartorder ne '') { 12763: @impfilepartids=split(/\s*,\s*/,$libpartorder); 12764: } 12765: } else { 12766: # If no <partorder> tag available, load and inspect imported file 12767: my $impfile=&getfile($location); 12768: @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); 12769: } 12770: if ($#impfilepartids>=0) { 12771: # This problem had parts 12772: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids); 12773: } else { 12774: # Importing by turning a single problem into a problem part 12775: # It gets the import-tags ID as part-ID 12776: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'}); 12777: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'}; 12778: } 12779: } else { 12780: # Import as problem or as normal import 12781: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'}); 12782: unless ($importmode eq 'problem') { 12783: # Normal import 12784: if (defined($token->[2]->{'id'})) { 12785: $unikey.='_'.$token->[2]->{'id'}; 12786: } 12787: } 12788: # Check metadata for imported file to 12789: # see if it contained parts 12790: if (grep(/^partorder$/,@libfilekeys)) { 12791: %currmetaentry = %metaentry; 12792: my $libpartorder = &metadata($location,'partorder',undef,undef,undef, 12793: $depthcount+1); 12794: %metaentry = %currmetaentry; 12795: undef(%currmetaentry); 12796: if ($libpartorder ne '') { 12797: $importedparts = 1; 12798: $importedpartids{$token->[2]->{'id'}}=$libpartorder; 12799: } 12800: } 12801: } 12802: if ($depthcount<20) { 12803: my $metadata = 12804: &metadata($uri,'keys',$toolsymb,$location,$unikey, 12805: $depthcount+1); 12806: foreach my $meta (split(',',$metadata)) { 12807: $metaentry{':'.$meta}=$metaentry{':'.$meta}; 12808: $metathesekeys{$meta}=1; 12809: } 12810: } 12811: } else { 12812: # 12813: # Not importing, some other kind of non-package, non-library start tag 12814: # 12815: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'}); 12816: if (defined($token->[2]->{'id'})) { 12817: $unikey.='_'.$token->[2]->{'id'}; 12818: } 12819: if (defined($token->[2]->{'name'})) { 12820: $unikey.='_'.$token->[2]->{'name'}; 12821: } 12822: $metathesekeys{$unikey}=1; 12823: foreach my $param (@{$token->[3]}) { 12824: $metaentry{':'.$unikey.'.'.$param} = 12825: $token->[2]->{$param}; 12826: } 12827: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry)); 12828: my $default=$metaentry{':'.$unikey.'.default'}; 12829: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) { 12830: # only ws inside the tag, and not in default, so use default 12831: # as value 12832: $metaentry{':'.$unikey}=$default; 12833: } elsif ( $internaltext =~ /\S/ ) { 12834: # something interesting inside the tag 12835: $metaentry{':'.$unikey}=$internaltext; 12836: } else { 12837: # no interesting values, don't set a default 12838: } 12839: # end of not-a-package not-a-library import 12840: } 12841: # end of not-a-package start tag 12842: } 12843: # the next is the end of "start tag" 12844: } 12845: } 12846: my ($extension) = ($uri =~ /\.(\w+)$/); 12847: $extension = lc($extension); 12848: if ($extension eq 'htm') { $extension='html'; } 12849: 12850: foreach my $key (keys(%packagetab)) { 12851: #no specific packages #how's our extension 12852: if ($key!~/^extension_\Q$extension\E&/) { next; } 12853: &metadata_create_package_def($uri,$key,'extension_'.$extension, 12854: \%metathesekeys); 12855: } 12856: 12857: if (!exists($metaentry{':packages'}) 12858: || $packagetab{"import_defaults&extension_$extension"}) { 12859: foreach my $key (keys(%packagetab)) { 12860: #no specific packages well let's get default then 12861: if ($key!~/^default&/) { next; } 12862: &metadata_create_package_def($uri,$key,'default', 12863: \%metathesekeys); 12864: } 12865: } 12866: # are there custom rights to evaluate 12867: if ($metaentry{':copyright'} eq 'custom') { 12868: 12869: # 12870: # Importing a rights file here 12871: # 12872: unless ($depthcount) { 12873: my $location=$metaentry{':customdistributionfile'}; 12874: my $dir=$filename; 12875: $dir=~s|[^/]*$||; 12876: $location=&filelocation($dir,$location); 12877: my $rights_metadata = 12878: &metadata($uri,'keys',$toolsymb,$location,'_rights', 12879: $depthcount+1); 12880: foreach my $rights (split(',',$rights_metadata)) { 12881: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights}; 12882: $metathesekeys{$rights}=1; 12883: } 12884: } 12885: } 12886: # uniqifiy package listing 12887: my %seen; 12888: my @uniq_packages = 12889: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'})); 12890: $metaentry{':packages'} = join(',',@uniq_packages); 12891: 12892: if (($importedresponses) || ($importedparts)) { 12893: if ($importedparts) { 12894: # We had imported parts and need to rebuild partorder 12895: $metaentry{':partorder'}=''; 12896: $metathesekeys{'partorder'}=1; 12897: } 12898: if ($importedresponses) { 12899: # We had imported responses and need to rebuil responseorder 12900: $metaentry{':responseorder'}=''; 12901: $metathesekeys{'responseorder'}=1; 12902: } 12903: for (my $index=0;$index<$#origfiletagids;$index+=2) { 12904: my $origid = $origfiletagids[$index+1]; 12905: if ($origfiletagids[$index] eq 'part') { 12906: # Original part, part of the problem 12907: if ($importedparts) { 12908: $metaentry{':partorder'}.=','.$origid; 12909: } 12910: } elsif ($origfiletagids[$index] eq 'import') { 12911: if ($importedparts) { 12912: # We have imported parts at this position 12913: if ($importedpartids{$origid} ne '') { 12914: $metaentry{':partorder'}.=','.$importedpartids{$origid}; 12915: } 12916: } 12917: if ($importedresponses) { 12918: # We have imported responses at this position 12919: if ($importedrespids{$origid} ne '') { 12920: $metaentry{':responseorder'}.=','.$importedrespids{$origid}; 12921: } 12922: } 12923: } else { 12924: # Original response item, part of the problem 12925: if ($importedresponses) { 12926: $metaentry{':responseorder'}.=','.$origid; 12927: } 12928: } 12929: } 12930: if ($importedparts) { 12931: $metaentry{':partorder'}=~s/^\,//; 12932: } 12933: if ($importedresponses) { 12934: $metaentry{':responseorder'}=~s/^\,//; 12935: } 12936: } 12937: $metaentry{':keys'} = join(',',keys(%metathesekeys)); 12938: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri); 12939: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys)); 12940: unless ($liburi) { 12941: &do_cache_new('meta',$uri,\%metaentry,$cachetime); 12942: } 12943: # this is the end of "was not already recently cached 12944: } 12945: return $metaentry{':'.$what}; 12946: } 12947: 12948: sub metadata_create_package_def { 12949: my ($uri,$key,$package,$metathesekeys)=@_; 12950: my ($pack,$name,$subp)=split(/\&/,$key); 12951: if ($subp eq 'default') { next; } 12952: 12953: if (defined($metaentry{':packages'})) { 12954: $metaentry{':packages'}.=','.$package; 12955: } else { 12956: $metaentry{':packages'}=$package; 12957: } 12958: my $value=$packagetab{$key}; 12959: my $unikey; 12960: $unikey='parameter_0_'.$name; 12961: $metaentry{':'.$unikey.'.part'}=0; 12962: $$metathesekeys{$unikey}=1; 12963: unless (defined($metaentry{':'.$unikey.'.'.$subp})) { 12964: $metaentry{':'.$unikey.'.'.$subp}=$value; 12965: } 12966: if (defined($metaentry{':'.$unikey.'.default'})) { 12967: $metaentry{':'.$unikey}= 12968: $metaentry{':'.$unikey.'.default'}; 12969: } 12970: } 12971: 12972: sub metadata_generate_part0 { 12973: my ($metadata,$metacache,$uri) = @_; 12974: my %allnames; 12975: foreach my $metakey (keys(%$metadata)) { 12976: if ($metakey=~/^parameter\_(.*)/) { 12977: my $part=$$metacache{':'.$metakey.'.part'}; 12978: my $name=$$metacache{':'.$metakey.'.name'}; 12979: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) { 12980: $allnames{$name}=$part; 12981: } 12982: } 12983: } 12984: foreach my $name (keys(%allnames)) { 12985: $$metadata{"parameter_0_$name"}=1; 12986: my $key=":parameter_0_$name"; 12987: $$metacache{"$key.part"}='0'; 12988: $$metacache{"$key.name"}=$name; 12989: $$metacache{"$key.type"}=$$metacache{':parameter_'. 12990: $allnames{$name}.'_'.$name. 12991: '.type'}; 12992: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name. 12993: '.display'}; 12994: my $expr='[Part: '.$allnames{$name}.']'; 12995: $olddis=~s/\Q$expr\E/\[Part: 0\]/; 12996: $$metacache{"$key.display"}=$olddis; 12997: } 12998: } 12999: 13000: # ------------------------------------------------------ Devalidate title cache 13001: 13002: sub devalidate_title_cache { 13003: my ($url)=@_; 13004: if (!$env{'request.course.id'}) { return; } 13005: my $symb=&symbread($url); 13006: if (!$symb) { return; } 13007: my $key=$env{'request.course.id'}."\0".$symb; 13008: &devalidate_cache_new('title',$key); 13009: } 13010: 13011: # ------------------------------------------------- Get the title of a course 13012: 13013: sub current_course_title { 13014: return $env{ 'course.' . $env{'request.course.id'} . '.description' }; 13015: } 13016: # ------------------------------------------------- Get the title of a resource 13017: 13018: sub gettitle { 13019: my $urlsymb=shift; 13020: my $symb=&symbread($urlsymb); 13021: if ($symb) { 13022: my $key=$env{'request.course.id'}."\0".$symb; 13023: my ($result,$cached)=&is_cached_new('title',$key); 13024: if (defined($cached)) { 13025: return $result; 13026: } 13027: my ($map,$resid,$url)=&decode_symb($symb); 13028: my $title=''; 13029: if (!$map && $resid == 0 && $url =~/default\.sequence$/) { 13030: $title = $env{'course.'.$env{'request.course.id'}.'.description'}; 13031: } else { 13032: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 13033: &GDBM_READER(),0640)) { 13034: my $mapid=$bighash{'map_pc_'.&clutter($map)}; 13035: $title=$bighash{'title_'.$mapid.'.'.$resid}; 13036: untie(%bighash); 13037: } 13038: } 13039: $title=~s/\&colon\;/\:/gs; 13040: if ($title) { 13041: # Remember both $symb and $title for dynamic metadata 13042: $accesshash{$symb.'___crstitle'}=$title; 13043: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time; 13044: # Cache this title and then return it 13045: return &do_cache_new('title',$key,$title,600); 13046: } 13047: $urlsymb=$url; 13048: } 13049: my $title=&metadata($urlsymb,'title'); 13050: if (!$title) { $title=(split('/',$urlsymb))[-1]; } 13051: return $title; 13052: } 13053: 13054: sub get_slot { 13055: my ($which,$cnum,$cdom)=@_; 13056: if (!$cnum || !$cdom) { 13057: (undef,my $courseid)=&whichuser(); 13058: $cdom=$env{'course.'.$courseid.'.domain'}; 13059: $cnum=$env{'course.'.$courseid.'.num'}; 13060: } 13061: my $key=join("\0",'slots',$cdom,$cnum,$which); 13062: my %slotinfo; 13063: if (exists($remembered{$key})) { 13064: $slotinfo{$which} = $remembered{$key}; 13065: } else { 13066: %slotinfo=&get('slots',[$which],$cdom,$cnum); 13067: &Apache::lonhomework::showhash(%slotinfo); 13068: my ($tmp)=keys(%slotinfo); 13069: if ($tmp=~/^error:/) { return (); } 13070: $remembered{$key} = $slotinfo{$which}; 13071: } 13072: if (ref($slotinfo{$which}) eq 'HASH') { 13073: return %{$slotinfo{$which}}; 13074: } 13075: return $slotinfo{$which}; 13076: } 13077: 13078: sub get_reservable_slots { 13079: my ($cnum,$cdom,$uname,$udom) = @_; 13080: my $now = time; 13081: my $reservable_info; 13082: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom); 13083: if (exists($remembered{$key})) { 13084: $reservable_info = $remembered{$key}; 13085: } else { 13086: my %resv; 13087: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) = 13088: &Apache::loncommon::get_future_slots($cnum,$cdom,$now); 13089: $reservable_info = \%resv; 13090: $remembered{$key} = $reservable_info; 13091: } 13092: return $reservable_info; 13093: } 13094: 13095: sub get_course_slots { 13096: my ($cnum,$cdom) = @_; 13097: my $hashid=$cnum.':'.$cdom; 13098: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid); 13099: if (defined($cached)) { 13100: if (ref($result) eq 'HASH') { 13101: return %{$result}; 13102: } 13103: } else { 13104: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum); 13105: my ($tmp) = keys(%slots); 13106: if ($tmp !~ /^(con_lost|error|no_such_host)/i) { 13107: &do_cache_new('allslots',$hashid,\%slots,600); 13108: return %slots; 13109: } 13110: } 13111: return; 13112: } 13113: 13114: sub devalidate_slots_cache { 13115: my ($cnum,$cdom)=@_; 13116: my $hashid=$cnum.':'.$cdom; 13117: &devalidate_cache_new('allslots',$hashid); 13118: } 13119: 13120: sub get_coursechange { 13121: my ($cdom,$cnum) = @_; 13122: if ($cdom eq '' || $cnum eq '') { 13123: return unless ($env{'request.course.id'}); 13124: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; 13125: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; 13126: } 13127: my $hashid=$cdom.'_'.$cnum; 13128: my ($change,$cached)=&is_cached_new('crschange',$hashid); 13129: if ((defined($cached)) && ($change ne '')) { 13130: return $change; 13131: } else { 13132: my %crshash; 13133: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum); 13134: if ($crshash{'internal.contentchange'} eq '') { 13135: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'}; 13136: if ($change eq '') { 13137: %crshash = &get('environment',['internal.created'],$cdom,$cnum); 13138: $change = $crshash{'internal.created'}; 13139: } 13140: } else { 13141: $change = $crshash{'internal.contentchange'}; 13142: } 13143: my $cachetime = 600; 13144: &do_cache_new('crschange',$hashid,$change,$cachetime); 13145: } 13146: return $change; 13147: } 13148: 13149: sub devalidate_coursechange_cache { 13150: my ($cnum,$cdom)=@_; 13151: my $hashid=$cnum.':'.$cdom; 13152: &devalidate_cache_new('crschange',$hashid); 13153: } 13154: 13155: # ------------------------------------------------- Update symbolic store links 13156: 13157: sub symblist { 13158: my ($mapname,%newhash)=@_; 13159: $mapname=&deversion(&declutter($mapname)); 13160: my %hash; 13161: if (($env{'request.course.fn'}) && (%newhash)) { 13162: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', 13163: &GDBM_WRCREAT(),0640)) { 13164: foreach my $url (keys(%newhash)) { 13165: next if ($url eq 'last_known' 13166: && $env{'form.no_update_last_known'}); 13167: $hash{declutter($url)}=&encode_symb($mapname, 13168: $newhash{$url}->[1], 13169: $newhash{$url}->[0]); 13170: } 13171: if (untie(%hash)) { 13172: return 'ok'; 13173: } 13174: } 13175: } 13176: return 'error'; 13177: } 13178: 13179: # --------------------------------------------------------------- Verify a symb 13180: 13181: sub symbverify { 13182: my ($symb,$thisurl,$encstate)=@_; 13183: my $thisfn=$thisurl; 13184: $thisfn=&declutter($thisfn); 13185: # direct jump to resource in page or to a sequence - will construct own symbs 13186: if ($thisfn=~/\.(page|sequence)$/) { return 1; } 13187: # check URL part 13188: my ($map,$resid,$url)=&decode_symb($symb); 13189: 13190: unless ($url eq $thisfn) { return 0; } 13191: 13192: $symb=&symbclean($symb); 13193: $thisurl=&deversion($thisurl); 13194: $thisfn=&deversion($thisfn); 13195: 13196: my %bighash; 13197: my $okay=0; 13198: 13199: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 13200: &GDBM_READER(),0640)) { 13201: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) { 13202: $thisurl =~ s/\?.+$//; 13203: if ($map =~ m{^uploaded/.+\.page$}) { 13204: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://}; 13205: $thisurl =~ s{^\Qhttp://https://\E}{https://}; 13206: } 13207: } 13208: my $ids; 13209: if ($map =~ m{^uploaded/.+\.page$}) { 13210: $ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)}; 13211: } else { 13212: $ids=$bighash{'ids_'.&clutter($thisurl)}; 13213: } 13214: unless ($ids) { 13215: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl; 13216: $ids=$bighash{$idkey}; 13217: } 13218: if ($ids) { 13219: # ------------------------------------------------------------------- Has ID(s) 13220: if ($thisfn =~ m{^/adm/wrapper/ext/}) { 13221: $symb =~ s/\?.+$//; 13222: } 13223: foreach my $id (split(/\,/,$ids)) { 13224: my ($mapid,$resid)=split(/\./,$id); 13225: if ( 13226: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn) 13227: eq $symb) { 13228: if (ref($encstate)) { 13229: $$encstate = $bighash{'encrypted_'.$id}; 13230: } 13231: if (($env{'request.role.adv'}) || 13232: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) || 13233: ($thisurl eq '/adm/navmaps')) { 13234: $okay=1; 13235: last; 13236: } 13237: } 13238: } 13239: } 13240: untie(%bighash); 13241: } 13242: return $okay; 13243: } 13244: 13245: # --------------------------------------------------------------- Clean-up symb 13246: 13247: sub symbclean { 13248: my $symb=shift; 13249: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } 13250: # remove version from map 13251: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/; 13252: 13253: # remove version from URL 13254: $symb=~s/\.(\d+)\.(\w+)$/\.$2/; 13255: 13256: # remove wrapper 13257: 13258: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/; 13259: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/; 13260: return $symb; 13261: } 13262: 13263: # ---------------------------------------------- Split symb to find map and url 13264: 13265: sub encode_symb { 13266: my ($map,$resid,$url)=@_; 13267: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url)); 13268: } 13269: 13270: sub decode_symb { 13271: my $symb=shift; 13272: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } 13273: my ($map,$resid,$url)=split(/___/,$symb); 13274: return (&fixversion($map),$resid,&fixversion($url)); 13275: } 13276: 13277: sub fixversion { 13278: my $fn=shift; 13279: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; } 13280: my %bighash; 13281: my $uri=&clutter($fn); 13282: my $key=$env{'request.course.id'}.'_'.$uri; 13283: # is this cached? 13284: my ($result,$cached)=&is_cached_new('courseresversion',$key); 13285: if (defined($cached)) { return $result; } 13286: # unfortunately not cached, or expired 13287: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 13288: &GDBM_READER(),0640)) { 13289: if ($bighash{'version_'.$uri}) { 13290: my $version=$bighash{'version_'.$uri}; 13291: unless (($version eq 'mostrecent') || 13292: ($version==&getversion($uri))) { 13293: $uri=~s/\.(\w+)$/\.$version\.$1/; 13294: } 13295: } 13296: untie %bighash; 13297: } 13298: return &do_cache_new('courseresversion',$key,&declutter($uri),600); 13299: } 13300: 13301: sub deversion { 13302: my $url=shift; 13303: $url=~s/\.\d+\.(\w+)$/\.$1/; 13304: return $url; 13305: } 13306: 13307: # ------------------------------------------------------ Return symb list entry 13308: 13309: sub symbread { 13310: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles, 13311: $ignoresymbdb,$noenccheck)=@_; 13312: my $cache_str='request.symbread.cached.'.$thisfn; 13313: if (defined($env{$cache_str})) { 13314: unless (ref($possibles) eq 'HASH') { 13315: if ($ignorecachednull) { 13316: return $env{$cache_str} unless ($env{$cache_str} eq ''); 13317: } else { 13318: return $env{$cache_str}; 13319: } 13320: } 13321: } 13322: # no filename provided? try from environment 13323: unless ($thisfn) { 13324: if ($env{'request.symb'}) { 13325: return $env{$cache_str}=&symbclean($env{'request.symb'}); 13326: } 13327: $thisfn=$env{'request.filename'}; 13328: } 13329: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } 13330: # is that filename actually a symb? Verify, clean, and return 13331: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) { 13332: if (&symbverify($thisfn,$1)) { 13333: return $env{$cache_str}=&symbclean($thisfn); 13334: } 13335: } 13336: $thisfn=declutter($thisfn); 13337: my %hash; 13338: my %bighash; 13339: my $syval=''; 13340: if (($env{'request.course.fn'}) && ($thisfn)) { 13341: my $targetfn = $thisfn; 13342: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) { 13343: $targetfn = 'adm/wrapper/'.$thisfn; 13344: } 13345: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) { 13346: $targetfn=$1; 13347: } 13348: unless ($ignoresymbdb) { 13349: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', 13350: &GDBM_READER(),0640)) { 13351: $syval=$hash{$targetfn}; 13352: untie(%hash); 13353: } 13354: if ($syval && $checkforblock) { 13355: my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck); 13356: if (@blockers) { 13357: $syval=''; 13358: } 13359: } 13360: } 13361: # ---------------------------------------------------------- There was an entry 13362: if ($syval) { 13363: #unless ($syval=~/\_\d+$/) { 13364: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) { 13365: #&appenv({'request.ambiguous' => $thisfn}); 13366: #return $env{$cache_str}=''; 13367: #} 13368: #$syval.=$1; 13369: #} 13370: } else { 13371: # ------------------------------------------------------- Was not in symb table 13372: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', 13373: &GDBM_READER(),0640)) { 13374: # ---------------------------------------------- Get ID(s) for current resource 13375: my $ids=$bighash{'ids_'.&clutter($thisfn)}; 13376: unless ($ids) { 13377: $ids=$bighash{'ids_/'.$thisfn}; 13378: } 13379: unless ($ids) { 13380: # alias? 13381: $ids=$bighash{'mapalias_'.$thisfn}; 13382: } 13383: if ($ids) { 13384: # ------------------------------------------------------------------- Has ID(s) 13385: my @possibilities=split(/\,/,$ids); 13386: if ($#possibilities==0) { 13387: # ----------------------------------------------- There is only one possibility 13388: my ($mapid,$resid)=split(/\./,$ids); 13389: $syval=&encode_symb($bighash{'map_id_'.$mapid}, 13390: $resid,$thisfn); 13391: if (ref($possibles) eq 'HASH') { 13392: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { 13393: $possibles->{$syval} = 1; 13394: } 13395: } 13396: if ($checkforblock) { 13397: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { 13398: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck); 13399: if (@blockers) { 13400: $syval = ''; 13401: untie(%bighash); 13402: return $env{$cache_str}=''; 13403: } 13404: } 13405: } 13406: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { 13407: # ------------------------------------------ There is more than one possibility 13408: my $realpossible=0; 13409: foreach my $id (@possibilities) { 13410: my $file=$bighash{'src_'.$id}; 13411: my $canaccess; 13412: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { 13413: $canaccess = 1; 13414: } else { 13415: $canaccess = &allowed('bre',$file); 13416: } 13417: if ($canaccess) { 13418: my ($mapid,$resid)=split(/\./,$id); 13419: if ($bighash{'map_type_'.$mapid} ne 'page') { 13420: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, 13421: $resid,$thisfn); 13422: next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'}); 13423: next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'})); 13424: if ($checkforblock) { 13425: my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck); 13426: if (@blockers > 0) { 13427: $syval = ''; 13428: } else { 13429: $syval = $poss_syval; 13430: $realpossible++; 13431: } 13432: } else { 13433: $syval = $poss_syval; 13434: $realpossible++; 13435: } 13436: if ($syval) { 13437: if (ref($possibles) eq 'HASH') { 13438: $possibles->{$syval} = 1; 13439: } 13440: } 13441: } 13442: } 13443: } 13444: if ($realpossible!=1) { $syval=''; } 13445: } else { 13446: $syval=''; 13447: } 13448: } 13449: untie(%bighash); 13450: } 13451: } 13452: if ($syval) { 13453: return $env{$cache_str}=$syval; 13454: } 13455: } 13456: &appenv({'request.ambiguous' => $thisfn}); 13457: return $env{$cache_str}=''; 13458: } 13459: 13460: # ---------------------------------------------------------- Return random seed 13461: 13462: sub numval { 13463: my $txt=shift; 13464: $txt=~tr/A-J/0-9/; 13465: $txt=~tr/a-j/0-9/; 13466: $txt=~tr/K-T/0-9/; 13467: $txt=~tr/k-t/0-9/; 13468: $txt=~tr/U-Z/0-5/; 13469: $txt=~tr/u-z/0-5/; 13470: $txt=~s/\D//g; 13471: if ($_64bit) { if ($txt > 2**32) { return -1; } } 13472: return int($txt); 13473: } 13474: 13475: sub numval2 { 13476: my $txt=shift; 13477: $txt=~tr/A-J/0-9/; 13478: $txt=~tr/a-j/0-9/; 13479: $txt=~tr/K-T/0-9/; 13480: $txt=~tr/k-t/0-9/; 13481: $txt=~tr/U-Z/0-5/; 13482: $txt=~tr/u-z/0-5/; 13483: $txt=~s/\D//g; 13484: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); 13485: my $total; 13486: foreach my $val (@txts) { $total+=$val; } 13487: if ($_64bit) { if ($total > 2**32) { return -1; } } 13488: return int($total); 13489: } 13490: 13491: sub numval3 { 13492: use integer; 13493: my $txt=shift; 13494: $txt=~tr/A-J/0-9/; 13495: $txt=~tr/a-j/0-9/; 13496: $txt=~tr/K-T/0-9/; 13497: $txt=~tr/k-t/0-9/; 13498: $txt=~tr/U-Z/0-5/; 13499: $txt=~tr/u-z/0-5/; 13500: $txt=~s/\D//g; 13501: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); 13502: my $total; 13503: foreach my $val (@txts) { $total+=$val; } 13504: if ($_64bit) { $total=(($total<<32)>>32); } 13505: return $total; 13506: } 13507: 13508: sub digest { 13509: my ($data)=@_; 13510: my $digest=&Digest::MD5::md5($data); 13511: my ($a,$b,$c,$d)=unpack("iiii",$digest); 13512: my ($e,$f); 13513: { 13514: use integer; 13515: $e=($a+$b); 13516: $f=($c+$d); 13517: if ($_64bit) { 13518: $e=(($e<<32)>>32); 13519: $f=(($f<<32)>>32); 13520: } 13521: } 13522: if (wantarray) { 13523: return ($e,$f); 13524: } else { 13525: my $g; 13526: { 13527: use integer; 13528: $g=($e+$f); 13529: if ($_64bit) { 13530: $g=(($g<<32)>>32); 13531: } 13532: } 13533: return $g; 13534: } 13535: } 13536: 13537: sub latest_rnd_algorithm_id { 13538: return '64bit5'; 13539: } 13540: 13541: sub get_rand_alg { 13542: my ($courseid)=@_; 13543: if (!$courseid) { $courseid=(&whichuser())[1]; } 13544: if ($courseid) { 13545: return $env{"course.$courseid.rndseed"}; 13546: } 13547: return &latest_rnd_algorithm_id(); 13548: } 13549: 13550: sub validCODE { 13551: my ($CODE)=@_; 13552: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; } 13553: return 0; 13554: } 13555: 13556: sub getCODE { 13557: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; } 13558: if ( (defined($Apache::lonhomework::parsing_a_problem) || 13559: defined($Apache::lonhomework::parsing_a_task) ) && 13560: &validCODE($Apache::lonhomework::history{'resource.CODE'})) { 13561: return $Apache::lonhomework::history{'resource.CODE'}; 13562: } 13563: return undef; 13564: } 13565: # 13566: # Determines the random seed for a specific context: 13567: # 13568: # parameters: 13569: # symb - in course context the symb for the seed. 13570: # course_id - The course id of the form domain_coursenum. 13571: # domain - Domain for the user. 13572: # course - Course for the user. 13573: # cenv - environment of the course. 13574: # 13575: # NOTE: 13576: # All parameters are picked out of the environment if missing 13577: # or not defined. 13578: # If a symb cannot be determined the current time is used instead. 13579: # 13580: # For a given well defined symb, courside, domain, username, 13581: # and course environment, the seed is reproducible. 13582: # 13583: sub rndseed { 13584: my ($symb,$courseid,$domain,$username, $cenv)=@_; 13585: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser(); 13586: if (!defined($symb)) { 13587: unless ($symb=$wsymb) { return time; } 13588: } 13589: if (!defined $courseid) { 13590: $courseid=$wcourseid; 13591: } 13592: if (!defined $domain) { $domain=$wdomain; } 13593: if (!defined $username) { $username=$wusername } 13594: 13595: my $which; 13596: if (defined($cenv->{'rndseed'})) { 13597: $which = $cenv->{'rndseed'}; 13598: } else { 13599: $which =&get_rand_alg($courseid); 13600: } 13601: if (defined(&getCODE())) { 13602: 13603: if ($which eq '64bit5') { 13604: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username); 13605: } elsif ($which eq '64bit4') { 13606: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username); 13607: } else { 13608: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username); 13609: } 13610: } elsif ($which eq '64bit5') { 13611: return &rndseed_64bit5($symb,$courseid,$domain,$username); 13612: } elsif ($which eq '64bit4') { 13613: return &rndseed_64bit4($symb,$courseid,$domain,$username); 13614: } elsif ($which eq '64bit3') { 13615: return &rndseed_64bit3($symb,$courseid,$domain,$username); 13616: } elsif ($which eq '64bit2') { 13617: return &rndseed_64bit2($symb,$courseid,$domain,$username); 13618: } elsif ($which eq '64bit') { 13619: return &rndseed_64bit($symb,$courseid,$domain,$username); 13620: } 13621: return &rndseed_32bit($symb,$courseid,$domain,$username); 13622: } 13623: 13624: sub rndseed_32bit { 13625: my ($symb,$courseid,$domain,$username)=@_; 13626: { 13627: use integer; 13628: my $symbchck=unpack("%32C*",$symb) << 27; 13629: my $symbseed=numval($symb) << 22; 13630: my $namechck=unpack("%32C*",$username) << 17; 13631: my $nameseed=numval($username) << 12; 13632: my $domainseed=unpack("%32C*",$domain) << 7; 13633: my $courseseed=unpack("%32C*",$courseid); 13634: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck; 13635: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 13636: #&logthis("rndseed :$num:$symb"); 13637: if ($_64bit) { $num=(($num<<32)>>32); } 13638: return $num; 13639: } 13640: } 13641: 13642: sub rndseed_64bit { 13643: my ($symb,$courseid,$domain,$username)=@_; 13644: { 13645: use integer; 13646: my $symbchck=unpack("%32S*",$symb) << 21; 13647: my $symbseed=numval($symb) << 10; 13648: my $namechck=unpack("%32S*",$username); 13649: 13650: my $nameseed=numval($username) << 21; 13651: my $domainseed=unpack("%32S*",$domain) << 10; 13652: my $courseseed=unpack("%32S*",$courseid); 13653: 13654: my $num1=$symbchck+$symbseed+$namechck; 13655: my $num2=$nameseed+$domainseed+$courseseed; 13656: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 13657: #&logthis("rndseed :$num:$symb"); 13658: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 13659: return "$num1,$num2"; 13660: } 13661: } 13662: 13663: sub rndseed_64bit2 { 13664: my ($symb,$courseid,$domain,$username)=@_; 13665: { 13666: use integer; 13667: # strings need to be an even # of cahracters long, it it is odd the 13668: # last characters gets thrown away 13669: my $symbchck=unpack("%32S*",$symb.' ') << 21; 13670: my $symbseed=numval($symb) << 10; 13671: my $namechck=unpack("%32S*",$username.' '); 13672: 13673: my $nameseed=numval($username) << 21; 13674: my $domainseed=unpack("%32S*",$domain.' ') << 10; 13675: my $courseseed=unpack("%32S*",$courseid.' '); 13676: 13677: my $num1=$symbchck+$symbseed+$namechck; 13678: my $num2=$nameseed+$domainseed+$courseseed; 13679: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 13680: #&logthis("rndseed :$num:$symb"); 13681: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 13682: return "$num1,$num2"; 13683: } 13684: } 13685: 13686: sub rndseed_64bit3 { 13687: my ($symb,$courseid,$domain,$username)=@_; 13688: { 13689: use integer; 13690: # strings need to be an even # of cahracters long, it it is odd the 13691: # last characters gets thrown away 13692: my $symbchck=unpack("%32S*",$symb.' ') << 21; 13693: my $symbseed=numval2($symb) << 10; 13694: my $namechck=unpack("%32S*",$username.' '); 13695: 13696: my $nameseed=numval2($username) << 21; 13697: my $domainseed=unpack("%32S*",$domain.' ') << 10; 13698: my $courseseed=unpack("%32S*",$courseid.' '); 13699: 13700: my $num1=$symbchck+$symbseed+$namechck; 13701: my $num2=$nameseed+$domainseed+$courseseed; 13702: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 13703: #&logthis("rndseed :$num1:$num2:$_64bit"); 13704: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 13705: 13706: return "$num1:$num2"; 13707: } 13708: } 13709: 13710: sub rndseed_64bit4 { 13711: my ($symb,$courseid,$domain,$username)=@_; 13712: { 13713: use integer; 13714: # strings need to be an even # of cahracters long, it it is odd the 13715: # last characters gets thrown away 13716: my $symbchck=unpack("%32S*",$symb.' ') << 21; 13717: my $symbseed=numval3($symb) << 10; 13718: my $namechck=unpack("%32S*",$username.' '); 13719: 13720: my $nameseed=numval3($username) << 21; 13721: my $domainseed=unpack("%32S*",$domain.' ') << 10; 13722: my $courseseed=unpack("%32S*",$courseid.' '); 13723: 13724: my $num1=$symbchck+$symbseed+$namechck; 13725: my $num2=$nameseed+$domainseed+$courseseed; 13726: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); 13727: #&logthis("rndseed :$num1:$num2:$_64bit"); 13728: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 13729: 13730: return "$num1:$num2"; 13731: } 13732: } 13733: 13734: sub rndseed_64bit5 { 13735: my ($symb,$courseid,$domain,$username)=@_; 13736: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username"); 13737: return "$num1:$num2"; 13738: } 13739: 13740: sub rndseed_CODE_64bit { 13741: my ($symb,$courseid,$domain,$username)=@_; 13742: { 13743: use integer; 13744: my $symbchck=unpack("%32S*",$symb.' ') << 16; 13745: my $symbseed=numval2($symb); 13746: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; 13747: my $CODEseed=numval(&getCODE()); 13748: my $courseseed=unpack("%32S*",$courseid.' '); 13749: my $num1=$symbseed+$CODEchck; 13750: my $num2=$CODEseed+$courseseed+$symbchck; 13751: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); 13752: #&logthis("rndseed :$num1:$num2:$symb"); 13753: if ($_64bit) { $num1=(($num1<<32)>>32); } 13754: if ($_64bit) { $num2=(($num2<<32)>>32); } 13755: return "$num1:$num2"; 13756: } 13757: } 13758: 13759: sub rndseed_CODE_64bit4 { 13760: my ($symb,$courseid,$domain,$username)=@_; 13761: { 13762: use integer; 13763: my $symbchck=unpack("%32S*",$symb.' ') << 16; 13764: my $symbseed=numval3($symb); 13765: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; 13766: my $CODEseed=numval3(&getCODE()); 13767: my $courseseed=unpack("%32S*",$courseid.' '); 13768: my $num1=$symbseed+$CODEchck; 13769: my $num2=$CODEseed+$courseseed+$symbchck; 13770: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); 13771: #&logthis("rndseed :$num1:$num2:$symb"); 13772: if ($_64bit) { $num1=(($num1<<32)>>32); } 13773: if ($_64bit) { $num2=(($num2<<32)>>32); } 13774: return "$num1:$num2"; 13775: } 13776: } 13777: 13778: sub rndseed_CODE_64bit5 { 13779: my ($symb,$courseid,$domain,$username)=@_; 13780: my $code = &getCODE(); 13781: my ($num1,$num2)=&digest("$symb,$courseid,$code"); 13782: return "$num1:$num2"; 13783: } 13784: 13785: sub setup_random_from_rndseed { 13786: my ($rndseed)=@_; 13787: if ($rndseed =~/([,:])/) { 13788: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed)); 13789: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) { 13790: &Math::Random::random_set_seed_from_phrase($rndseed); 13791: } else { 13792: &Math::Random::random_set_seed($num1,$num2); 13793: } 13794: } else { 13795: &Math::Random::random_set_seed_from_phrase($rndseed); 13796: } 13797: } 13798: 13799: sub latest_receipt_algorithm_id { 13800: return 'receipt3'; 13801: } 13802: 13803: sub recunique { 13804: my $fucourseid=shift; 13805: my $unique; 13806: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' || 13807: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { 13808: $unique=$env{"course.$fucourseid.internal.encseed"}; 13809: } else { 13810: $unique=$perlvar{'lonReceipt'}; 13811: } 13812: return unpack("%32C*",$unique); 13813: } 13814: 13815: sub recprefix { 13816: my $fucourseid=shift; 13817: my $prefix; 13818: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'|| 13819: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { 13820: $prefix=$env{"course.$fucourseid.internal.encpref"}; 13821: } else { 13822: $prefix=$perlvar{'lonHostID'}; 13823: } 13824: return unpack("%32C*",$prefix); 13825: } 13826: 13827: sub ireceipt { 13828: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_; 13829: 13830: my $return =&recprefix($fucourseid).'-'; 13831: 13832: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' || 13833: $env{'request.state'} eq 'construct') { 13834: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000); 13835: return $return; 13836: } 13837: 13838: my $cuname=unpack("%32C*",$funame); 13839: my $cudom=unpack("%32C*",$fudom); 13840: my $cucourseid=unpack("%32C*",$fucourseid); 13841: my $cusymb=unpack("%32C*",$fusymb); 13842: my $cunique=&recunique($fucourseid); 13843: my $cpart=unpack("%32S*",$part); 13844: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') { 13845: 13846: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom)); 13847: 13848: $return.= ($cunique%$cuname+ 13849: $cunique%$cudom+ 13850: $cusymb%$cuname+ 13851: $cusymb%$cudom+ 13852: $cucourseid%$cuname+ 13853: $cucourseid%$cudom+ 13854: $cpart%$cuname+ 13855: $cpart%$cudom); 13856: } else { 13857: $return.= ($cunique%$cuname+ 13858: $cunique%$cudom+ 13859: $cusymb%$cuname+ 13860: $cusymb%$cudom+ 13861: $cucourseid%$cuname+ 13862: $cucourseid%$cudom); 13863: } 13864: return $return; 13865: } 13866: 13867: sub receipt { 13868: my ($part)=@_; 13869: my ($symb,$courseid,$domain,$name) = &whichuser(); 13870: return &ireceipt($name,$domain,$courseid,$symb,$part); 13871: } 13872: 13873: sub whichuser { 13874: my ($passedsymb)=@_; 13875: my ($symb,$courseid,$domain,$name,$publicuser); 13876: if (defined($env{'form.grade_symb'})) { 13877: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid'); 13878: my $allowed=&allowed('vgr',$tmp_courseid); 13879: if (!$allowed && 13880: exists($env{'request.course.sec'}) && 13881: $env{'request.course.sec'} !~ /^\s*$/) { 13882: $allowed=&allowed('vgr',$tmp_courseid. 13883: '/'.$env{'request.course.sec'}); 13884: } 13885: if ($allowed) { 13886: ($symb)=&get_env_multiple('form.grade_symb'); 13887: $courseid=$tmp_courseid; 13888: ($domain)=&get_env_multiple('form.grade_domain'); 13889: ($name)=&get_env_multiple('form.grade_username'); 13890: return ($symb,$courseid,$domain,$name,$publicuser); 13891: } 13892: } 13893: if (!$passedsymb) { 13894: $symb=&symbread(); 13895: } else { 13896: $symb=$passedsymb; 13897: } 13898: $courseid=$env{'request.course.id'}; 13899: $domain=$env{'user.domain'}; 13900: $name=$env{'user.name'}; 13901: if ($name eq 'public' && $domain eq 'public') { 13902: if (!defined($env{'form.username'})) { 13903: $env{'form.username'}.=time.rand(10000000); 13904: } 13905: $name.=$env{'form.username'}; 13906: } 13907: return ($symb,$courseid,$domain,$name,$publicuser); 13908: 13909: } 13910: 13911: # ------------------------------------------------------------ Serves up a file 13912: # returns either the contents of the file or 13913: # -1 if the file doesn't exist 13914: # 13915: # if the target is a file that was uploaded via DOCS, 13916: # a check will be made to see if a current copy exists on the local server, 13917: # if it does this will be served, otherwise a copy will be retrieved from 13918: # the home server for the course and stored in /home/httpd/html/userfiles on 13919: # the local server. 13920: 13921: sub getfile { 13922: my ($file) = @_; 13923: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); } 13924: &repcopy($file); 13925: return &readfile($file); 13926: } 13927: 13928: sub repcopy_userfile { 13929: my ($file)=@_; 13930: my $londocroot = $perlvar{'lonDocRoot'}; 13931: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); } 13932: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } 13933: my ($cdom,$cnum,$filename) = 13934: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|); 13935: my $uri="/uploaded/$cdom/$cnum/$filename"; 13936: if (-e "$file") { 13937: # we already have a local copy, check it out 13938: my @fileinfo = stat($file); 13939: my $rtncode; 13940: my $info; 13941: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode); 13942: if ($lwpresp ne 'ok') { 13943: # there is no such file anymore, even though we had a local copy 13944: if ($rtncode eq '404') { 13945: unlink($file); 13946: } 13947: return -1; 13948: } 13949: if ($info < $fileinfo[9]) { 13950: # nice, the file we have is up-to-date, just say okay 13951: return 'ok'; 13952: } else { 13953: # the file is outdated, get rid of it 13954: unlink($file); 13955: } 13956: } 13957: # one way or the other, at this point, we don't have the file 13958: # construct the correct path for the file 13959: my @parts = ($cdom,$cnum); 13960: if ($filename =~ m|^(.+)/[^/]+$|) { 13961: push @parts, split(/\//,$1); 13962: } 13963: my $path = $perlvar{'lonDocRoot'}.'/userfiles'; 13964: foreach my $part (@parts) { 13965: $path .= '/'.$part; 13966: if (!-e $path) { 13967: mkdir($path,0770); 13968: } 13969: } 13970: # now the path exists for sure 13971: # get a user agent 13972: my $transferfile=$file.'.in.transfer'; 13973: # FIXME: this should flock 13974: if (-e $transferfile) { return 'ok'; } 13975: my $request; 13976: $uri=~s/^\///; 13977: my $homeserver = &homeserver($cnum,$cdom); 13978: my $hostname = &hostname($homeserver); 13979: my $protocol = $protocol{$homeserver}; 13980: $protocol = 'http' if ($protocol ne 'https'); 13981: $request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri); 13982: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1); 13983: # did it work? 13984: if ($response->is_error()) { 13985: unlink($transferfile); 13986: &logthis("Userfile repcopy failed for $uri"); 13987: return -1; 13988: } 13989: # worked, rename the transfer file 13990: rename($transferfile,$file); 13991: return 'ok'; 13992: } 13993: 13994: sub tokenwrapper { 13995: my $uri=shift; 13996: $uri=~s|^https?\://([^/]+)||; 13997: $uri=~s|^/||; 13998: $env{'user.environment'}=~/\/([^\/]+)\.id/; 13999: my $token=$1; 14000: my (undef,$udom,$uname,$file)=split('/',$uri,4); 14001: if ($udom && $uname && $file) { 14002: $file=~s|(\?\.*)*$||; 14003: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}}); 14004: my $homeserver = &homeserver($uname,$udom); 14005: my $hostname = &hostname($homeserver); 14006: my $protocol = $protocol{$homeserver}; 14007: $protocol = 'http' if ($protocol ne 'https'); 14008: return $protocol.'://'.$hostname.'/'.$uri. 14009: (($uri=~/\?/)?'&':'?').'token='.$token. 14010: '&tokenissued='.$perlvar{'lonHostID'}; 14011: } else { 14012: return '/adm/notfound.html'; 14013: } 14014: } 14015: 14016: # call with reqtype HEAD: get last modification time 14017: # call with reqtype GET: get the file contents 14018: # Do not call this with reqtype GET for large files! It loads everything into memory 14019: # 14020: sub getuploaded { 14021: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_; 14022: $uri=~s/^\///; 14023: my $homeserver = &homeserver($cnum,$cdom); 14024: my $hostname = &hostname($homeserver); 14025: my $protocol = $protocol{$homeserver}; 14026: $protocol = 'http' if ($protocol ne 'https'); 14027: $uri = $protocol.'://'.$hostname.'/raw/'.$uri; 14028: my $request=new HTTP::Request($reqtype,$uri); 14029: my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1); 14030: $$rtncode = $response->code; 14031: if (! $response->is_success()) { 14032: return 'failed'; 14033: } 14034: if ($reqtype eq 'HEAD') { 14035: $$info = &HTTP::Date::str2time( $response->header('Last-modified') ); 14036: } elsif ($reqtype eq 'GET') { 14037: $$info = $response->content; 14038: } 14039: return 'ok'; 14040: } 14041: 14042: sub readfile { 14043: my $file = shift; 14044: if ( (! -e $file ) || ($file eq '') ) { return -1; }; 14045: my $fh; 14046: open($fh,"<",$file); 14047: my $a=''; 14048: while (my $line = <$fh>) { $a .= $line; } 14049: return $a; 14050: } 14051: 14052: sub filelocation { 14053: my ($dir,$file) = @_; 14054: my $location; 14055: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces 14056: 14057: if ($file =~ m-^/adm/-) { 14058: $file=~s-^/adm/wrapper/-/-; 14059: $file=~s-^/adm/coursedocs/showdoc/-/-; 14060: } 14061: 14062: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) { 14063: $location = $file; 14064: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file 14065: my ($udom,$uname,$filename)= 14066: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-); 14067: my $home=&homeserver($uname,$udom); 14068: my $is_me=0; 14069: my @ids=&current_machine_ids(); 14070: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } } 14071: if ($is_me) { 14072: $location=propath($udom,$uname).'/userfiles/'.$filename; 14073: } else { 14074: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'. 14075: $udom.'/'.$uname.'/'.$filename; 14076: } 14077: } elsif ($file =~ m-^/adm/-) { 14078: $location = $perlvar{'lonDocRoot'}.'/'.$file; 14079: } else { 14080: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//; 14081: $file=~s:^/(res|priv)/:/:; 14082: my $space=$1; 14083: if ( !( $file =~ m:^/:) ) { 14084: $location = $dir. '/'.$file; 14085: } else { 14086: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file; 14087: } 14088: } 14089: $location=~s://+:/:g; # remove duplicate / 14090: while ($location=~m{/\.\./}) { 14091: if ($location =~ m{/[^/]+/\.\./}) { 14092: $location=~ s{/[^/]+/\.\./}{/}g; 14093: } else { 14094: $location=~ s{/\.\./}{/}g; 14095: } 14096: } #remove dir/.. 14097: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./ 14098: return $location; 14099: } 14100: 14101: sub hreflocation { 14102: my ($dir,$file)=@_; 14103: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) { 14104: $file=filelocation($dir,$file); 14105: } elsif ($file=~m-^/adm/-) { 14106: $file=~s-^/adm/wrapper/-/-; 14107: $file=~s-^/adm/coursedocs/showdoc/-/-; 14108: } 14109: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) { 14110: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--; 14111: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) { 14112: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/} 14113: {/uploaded/$1/$2/}x; 14114: } 14115: if ($file=~ m{^/userfiles/}) { 14116: $file =~ s{^/userfiles/}{/uploaded/}; 14117: } 14118: return $file; 14119: } 14120: 14121: 14122: 14123: 14124: 14125: sub current_machine_domains { 14126: return &machine_domains(&hostname($perlvar{'lonHostID'})); 14127: } 14128: 14129: sub machine_domains { 14130: my ($hostname) = @_; 14131: my @domains; 14132: my %hostname = &all_hostnames(); 14133: while( my($id, $name) = each(%hostname)) { 14134: # &logthis("-$id-$name-$hostname-"); 14135: if ($hostname eq $name) { 14136: push(@domains,&host_domain($id)); 14137: } 14138: } 14139: return @domains; 14140: } 14141: 14142: sub current_machine_ids { 14143: return &machine_ids(&hostname($perlvar{'lonHostID'})); 14144: } 14145: 14146: sub machine_ids { 14147: my ($hostname) = @_; 14148: $hostname ||= &hostname($perlvar{'lonHostID'}); 14149: my @ids; 14150: my %name_to_host = &all_names(); 14151: if (ref($name_to_host{$hostname}) eq 'ARRAY') { 14152: return @{ $name_to_host{$hostname} }; 14153: } 14154: return; 14155: } 14156: 14157: sub additional_machine_domains { 14158: my @domains; 14159: open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab"); 14160: while( my $line = <$fh>) { 14161: $line =~ s/\s//g; 14162: push(@domains,$line); 14163: } 14164: return @domains; 14165: } 14166: 14167: sub default_login_domain { 14168: my $domain = $perlvar{'lonDefDomain'}; 14169: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0]; 14170: foreach my $posdom (&current_machine_domains(), 14171: &additional_machine_domains()) { 14172: if (lc($posdom) eq lc($testdomain)) { 14173: $domain=$posdom; 14174: last; 14175: } 14176: } 14177: return $domain; 14178: } 14179: 14180: sub shared_institution { 14181: my ($dom) = @_; 14182: my $same_intdom; 14183: my $hostintdom = &internet_dom($perlvar{'lonHostID'}); 14184: if ($hostintdom ne '') { 14185: my %iphost = &get_iphost(); 14186: my $primary_id = &domain($dom,'primary'); 14187: my $primary_ip = &get_host_ip($primary_id); 14188: if (ref($iphost{$primary_ip}) eq 'ARRAY') { 14189: foreach my $id (@{$iphost{$primary_ip}}) { 14190: my $intdom = &internet_dom($id); 14191: if ($intdom eq $hostintdom) { 14192: $same_intdom = 1; 14193: last; 14194: } 14195: } 14196: } 14197: } 14198: return $same_intdom; 14199: } 14200: 14201: sub uses_sts { 14202: my ($ignore_cache) = @_; 14203: my $lonhost = $perlvar{'lonHostID'}; 14204: my $hostname = &hostname($lonhost); 14205: my $sts_on; 14206: if ($protocol{$lonhost} eq 'https') { 14207: my $cachetime = 12*3600; 14208: if (!$ignore_cache) { 14209: ($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost); 14210: if (defined($cached)) { 14211: return $sts_on; 14212: } 14213: } 14214: my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html'; 14215: my $request=new HTTP::Request('HEAD',$url); 14216: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1); 14217: if ($response->is_success) { 14218: my $has_sts = $response->header('Strict-Transport-Security'); 14219: if ($has_sts eq '') { 14220: $sts_on = 0; 14221: } else { 14222: if ($has_sts =~ /\Qmax-age=\E(\d+)/) { 14223: my $maxage = $1; 14224: if ($maxage) { 14225: $sts_on = 1; 14226: } else { 14227: $sts_on = 0; 14228: } 14229: } else { 14230: $sts_on = 0; 14231: } 14232: } 14233: return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime); 14234: } 14235: } 14236: return; 14237: } 14238: 14239: # ------------------------------------------------------------- Declutters URLs 14240: 14241: sub declutter { 14242: my $thisfn=shift; 14243: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } 14244: unless ($thisfn=~m{^/home/httpd/html/priv/}) { 14245: $thisfn=~s{^/home/httpd/html}{}; 14246: } 14247: $thisfn=~s/^\///; 14248: $thisfn=~s|^adm/wrapper/||; 14249: $thisfn=~s|^adm/coursedocs/showdoc/||; 14250: $thisfn=~s/^res\///; 14251: $thisfn=~s/^priv\///; 14252: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) { 14253: $thisfn=~s/\?.+$//; 14254: } 14255: return $thisfn; 14256: } 14257: 14258: # ------------------------------------------------------------- Clutter up URLs 14259: 14260: sub clutter { 14261: my $thisfn='/'.&declutter(shift); 14262: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/} 14263: || $thisfn =~ m{^/adm/(includes|pages)} ) { 14264: $thisfn='/res'.$thisfn; 14265: } 14266: if ($thisfn !~m|^/adm|) { 14267: if ($thisfn =~ m|^/ext/|) { 14268: $thisfn='/adm/wrapper'.$thisfn; 14269: } else { 14270: my ($ext) = ($thisfn =~ /\.(\w+)$/); 14271: my $embstyle=&Apache::loncommon::fileembstyle($ext); 14272: if ($embstyle eq 'ssi' 14273: || ($embstyle eq 'hdn') 14274: || ($embstyle eq 'rat') 14275: || ($embstyle eq 'prv') 14276: || ($embstyle eq 'ign')) { 14277: #do nothing with these 14278: } elsif (($embstyle eq 'img') 14279: || ($embstyle eq 'emb') 14280: || ($embstyle eq 'wrp')) { 14281: $thisfn='/adm/wrapper'.$thisfn; 14282: } elsif ($embstyle eq 'unk' 14283: && $thisfn!~/\.(sequence|page)$/) { 14284: $thisfn='/adm/coursedocs/showdoc'.$thisfn; 14285: } else { 14286: # &logthis("Got a blank emb style"); 14287: } 14288: } 14289: } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) { 14290: $thisfn='/adm/wrapper'.$thisfn; 14291: } 14292: return $thisfn; 14293: } 14294: 14295: sub clutter_with_no_wrapper { 14296: my $uri = &clutter(shift); 14297: if ($uri =~ m-^/adm/-) { 14298: $uri =~ s-^/adm/wrapper/-/-; 14299: $uri =~ s-^/adm/coursedocs/showdoc/-/-; 14300: } 14301: return $uri; 14302: } 14303: 14304: sub freeze_escape { 14305: my ($value)=@_; 14306: if (ref($value)) { 14307: $value=&nfreeze($value); 14308: return '__FROZEN__'.&escape($value); 14309: } 14310: return &escape($value); 14311: } 14312: 14313: 14314: sub thaw_unescape { 14315: my ($value)=@_; 14316: if ($value =~ /^__FROZEN__/) { 14317: substr($value,0,10,undef); 14318: $value=&unescape($value); 14319: return &thaw($value); 14320: } 14321: return &unescape($value); 14322: } 14323: 14324: sub correct_line_ends { 14325: my ($result)=@_; 14326: $$result =~s/\r\n/\n/mg; 14327: $$result =~s/\r/\n/mg; 14328: } 14329: # ================================================================ Main Program 14330: 14331: sub goodbye { 14332: &logthis("Starting Shut down"); 14333: #not converted to using infrastruture and probably shouldn't be 14334: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache)))); 14335: #converted 14336: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache))); 14337: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache)))); 14338: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache)))); 14339: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache)))); 14340: #1.1 only 14341: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache)))); 14342: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache)))); 14343: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache)))); 14344: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache)))); 14345: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered)))); 14346: &logthis(sprintf("%-20s is %s",'kicks',$kicks)); 14347: &logthis(sprintf("%-20s is %s",'hits',$hits)); 14348: &flushcourselogs(); 14349: &logthis("Shutting down"); 14350: } 14351: 14352: sub get_dns { 14353: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_; 14354: if (!$ignore_cache) { 14355: my ($content,$cached)= 14356: &Apache::lonnet::is_cached_new('dns',$url); 14357: if ($cached) { 14358: &$func($content,$hashref); 14359: return; 14360: } 14361: } 14362: 14363: my %alldns; 14364: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) { 14365: foreach my $dns (<$config>) { 14366: next if ($dns !~ /^\^(\S*)/x); 14367: my $line = $1; 14368: my ($host,$protocol) = split(/:/,$line); 14369: if ($protocol ne 'https') { 14370: $protocol = 'http'; 14371: } 14372: $alldns{$host} = $protocol; 14373: } 14374: close($config); 14375: } 14376: while (%alldns) { 14377: my ($dns) = sort { $b cmp $a } keys(%alldns); 14378: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url"); 14379: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0); 14380: delete($alldns{$dns}); 14381: next if ($response->is_error()); 14382: if ($url eq '/adm/dns/loncapaCRL') { 14383: return &$func($response); 14384: } else { 14385: my @content = split("\n",$response->content); 14386: unless ($nocache) { 14387: &do_cache_new('dns',$url,\@content,30*24*60*60); 14388: } 14389: &$func(\@content,$hashref); 14390: return; 14391: } 14392: } 14393: my $which = (split('/',$url,4))[3]; 14394: if ($which eq 'loncapaCRL') { 14395: my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; 14396: if (-e $diskfile) { 14397: &logthis("unable to contact DNS, on disk file $diskfile not updated"); 14398: } else { 14399: &logthis("unable to contact DNS, no on disk file $diskfile available"); 14400: } 14401: } else { 14402: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n"); 14403: if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) { 14404: my @content = <$config>; 14405: close($config); 14406: &$func(\@content,$hashref); 14407: } 14408: } 14409: return; 14410: } 14411: 14412: # ------------------------------------------------------Get DNS checksums file 14413: sub parse_dns_checksums_tab { 14414: my ($lines,$hashref) = @_; 14415: my $lonhost = $perlvar{'lonHostID'}; 14416: my $machine_dom = &Apache::lonnet::host_domain($lonhost); 14417: my $loncaparev = &get_server_loncaparev($machine_dom); 14418: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; 14419: my $webconfdir = '/etc/httpd/conf'; 14420: if ($distro =~ /^(ubuntu|debian)(\d+)$/) { 14421: $webconfdir = '/etc/apache2'; 14422: } elsif ($distro =~ /^sles(\d+)$/) { 14423: if ($1 >= 10) { 14424: $webconfdir = '/etc/apache2'; 14425: } 14426: } elsif ($distro =~ /^suse(\d+\.\d+)$/) { 14427: if ($1 >= 10.0) { 14428: $webconfdir = '/etc/apache2'; 14429: } 14430: } 14431: my ($release,$timestamp) = split(/\-/,$loncaparev); 14432: my (%chksum,%revnum); 14433: if (ref($lines) eq 'ARRAY') { 14434: chomp(@{$lines}); 14435: my $version = shift(@{$lines}); 14436: if ($version eq $release) { 14437: foreach my $line (@{$lines}) { 14438: my ($file,$version,$shasum) = split(/,/,$line); 14439: if ($file =~ m{^/etc/httpd/conf}) { 14440: if ($webconfdir eq '/etc/apache2') { 14441: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/}; 14442: } 14443: } 14444: $chksum{$file} = $shasum; 14445: $revnum{$file} = $version; 14446: } 14447: if (ref($hashref) eq 'HASH') { 14448: %{$hashref} = ( 14449: sums => \%chksum, 14450: versions => \%revnum, 14451: ); 14452: } 14453: } 14454: } 14455: return; 14456: } 14457: 14458: sub fetch_dns_checksums { 14459: my %checksums; 14460: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'}); 14461: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'}); 14462: my ($release,$timestamp) = split(/\-/,$loncaparev); 14463: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1, 14464: \%checksums); 14465: return \%checksums; 14466: } 14467: 14468: sub fetch_crl_pemfile { 14469: return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1); 14470: } 14471: 14472: sub save_crl_pem { 14473: my ($response) = @_; 14474: my ($msg,$hadchanges); 14475: if (ref($response)) { 14476: my $now = time; 14477: my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'}; 14478: my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp'; 14479: if (open(my $fh,'>',"$tmpcrl")) { 14480: print $fh $response->content; 14481: close($fh); 14482: if (-e $lonca) { 14483: if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 |")) { 14484: my $check = <PIPE>; 14485: close(PIPE); 14486: chomp($check); 14487: if ($check eq 'verify OK') { 14488: my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; 14489: my $backup; 14490: if (-e $dest) { 14491: if (&File::Copy::move($dest,"$dest.bak")) { 14492: $backup = 'ok'; 14493: } 14494: } 14495: if (&File::Copy::move($tmpcrl,$dest)) { 14496: $msg = 'ok'; 14497: if ($backup) { 14498: my (%oldnums,%newnums); 14499: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak |grep 'Serial Number' |")) { 14500: while (<PIPE>) { 14501: $oldnums{(split(/:/))[1]} = 1; 14502: } 14503: close(PIPE); 14504: } 14505: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest |grep 'Serial Number' |")) { 14506: while(<PIPE>) { 14507: $newnums{(split(/:/))[1]} = 1; 14508: } 14509: close(PIPE); 14510: } 14511: foreach my $key (sort {$b <=> $a } (keys(%newnums))) { 14512: unless (exists($oldnums{$key})) { 14513: $hadchanges = 1; 14514: last; 14515: } 14516: } 14517: unless ($hadchanges) { 14518: foreach my $key (sort {$b <=> $a } (keys(%oldnums))) { 14519: unless (exists($newnums{$key})) { 14520: $hadchanges = 1; 14521: last; 14522: } 14523: } 14524: } 14525: } 14526: } 14527: } else { 14528: unlink($tmpcrl); 14529: } 14530: } else { 14531: unlink($tmpcrl); 14532: } 14533: } else { 14534: unlink($tmpcrl); 14535: } 14536: } 14537: } 14538: return ($msg,$hadchanges); 14539: } 14540: 14541: # ------------------------------------------------------------ Read domain file 14542: { 14543: my $loaded; 14544: my %domain; 14545: 14546: sub parse_domain_tab { 14547: my ($lines) = @_; 14548: foreach my $line (@$lines) { 14549: next if ($line =~ /^(\#|\s*$ )/x); 14550: 14551: chomp($line); 14552: my ($name,@elements) = split(/:/,$line,9); 14553: my %this_domain; 14554: foreach my $field ('description', 'auth_def', 'auth_arg_def', 14555: 'lang_def', 'city', 'longi', 'lati', 14556: 'primary') { 14557: $this_domain{$field} = shift(@elements); 14558: } 14559: $domain{$name} = \%this_domain; 14560: } 14561: } 14562: 14563: sub reset_domain_info { 14564: undef($loaded); 14565: undef(%domain); 14566: } 14567: 14568: sub load_domain_tab { 14569: my ($ignore_cache,$nocache) = @_; 14570: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache); 14571: my $fh; 14572: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) { 14573: my @lines = <$fh>; 14574: &parse_domain_tab(\@lines); 14575: } 14576: close($fh); 14577: $loaded = 1; 14578: } 14579: 14580: sub domain { 14581: &load_domain_tab() if (!$loaded); 14582: 14583: my ($name,$what) = @_; 14584: return if ( !exists($domain{$name}) ); 14585: 14586: if (!$what) { 14587: return $domain{$name}{'description'}; 14588: } 14589: return $domain{$name}{$what}; 14590: } 14591: 14592: sub domain_info { 14593: &load_domain_tab() if (!$loaded); 14594: return %domain; 14595: } 14596: 14597: } 14598: 14599: 14600: # ------------------------------------------------------------- Read hosts file 14601: { 14602: my %hostname; 14603: my %hostdom; 14604: my %libserv; 14605: my $loaded; 14606: my %name_to_host; 14607: my %internetdom; 14608: my %LC_dns_serv; 14609: 14610: sub parse_hosts_tab { 14611: my ($file) = @_; 14612: foreach my $configline (@$file) { 14613: next if ($configline =~ /^(\#|\s*$ )/x); 14614: chomp($configline); 14615: if ($configline =~ /^\^/) { 14616: if ($configline =~ /^\^([\w.\-]+)/) { 14617: $LC_dns_serv{$1} = 1; 14618: } 14619: next; 14620: } 14621: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline); 14622: $name=~s/\s//g; 14623: if ($id && $domain && $role && $name) { 14624: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) { 14625: my $curr = $hostname{$id}; 14626: my $skip; 14627: if (ref($name_to_host{$curr}) eq 'ARRAY') { 14628: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) { 14629: $skip = 1; 14630: } else { 14631: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}}; 14632: } 14633: } 14634: unless ($skip) { 14635: push(@{$name_to_host{$name}},$id); 14636: } 14637: } else { 14638: push(@{$name_to_host{$name}},$id); 14639: } 14640: $hostname{$id}=$name; 14641: $hostdom{$id}=$domain; 14642: if ($role eq 'library') { $libserv{$id}=$name; } 14643: if (defined($protocol)) { 14644: if ($protocol eq 'https') { 14645: $protocol{$id} = $protocol; 14646: } else { 14647: $protocol{$id} = 'http'; 14648: } 14649: } else { 14650: $protocol{$id} = 'http'; 14651: } 14652: if (defined($intdom)) { 14653: $internetdom{$id} = $intdom; 14654: } 14655: } 14656: } 14657: } 14658: 14659: sub reset_hosts_info { 14660: &purge_remembered(); 14661: &reset_domain_info(); 14662: &reset_hosts_ip_info(); 14663: undef(%internetdom); 14664: undef(%name_to_host); 14665: undef(%hostname); 14666: undef(%hostdom); 14667: undef(%libserv); 14668: undef($loaded); 14669: } 14670: 14671: sub load_hosts_tab { 14672: my ($ignore_cache,$nocache) = @_; 14673: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache); 14674: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab"); 14675: my @config = <$config>; 14676: &parse_hosts_tab(\@config); 14677: close($config); 14678: $loaded=1; 14679: } 14680: 14681: sub hostname { 14682: &load_hosts_tab() if (!$loaded); 14683: 14684: my ($lonid) = @_; 14685: return $hostname{$lonid}; 14686: } 14687: 14688: sub all_hostnames { 14689: &load_hosts_tab() if (!$loaded); 14690: 14691: return %hostname; 14692: } 14693: 14694: sub all_names { 14695: my ($ignore_cache,$nocache) = @_; 14696: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded); 14697: 14698: return %name_to_host; 14699: } 14700: 14701: sub all_host_domain { 14702: &load_hosts_tab() if (!$loaded); 14703: return %hostdom; 14704: } 14705: 14706: sub all_host_intdom { 14707: &load_hosts_tab() if (!$loaded); 14708: return %internetdom; 14709: } 14710: 14711: sub is_library { 14712: &load_hosts_tab() if (!$loaded); 14713: 14714: return exists($libserv{$_[0]}); 14715: } 14716: 14717: sub all_library { 14718: &load_hosts_tab() if (!$loaded); 14719: 14720: return %libserv; 14721: } 14722: 14723: sub unique_library { 14724: #2x reverse removes all hostnames that appear more than once 14725: my %unique = reverse &all_library(); 14726: return reverse %unique; 14727: } 14728: 14729: sub get_servers { 14730: &load_hosts_tab() if (!$loaded); 14731: 14732: my ($domain,$type) = @_; 14733: my %possible_hosts = ($type eq 'library') ? %libserv 14734: : %hostname; 14735: my %result; 14736: if (ref($domain) eq 'ARRAY') { 14737: while ( my ($host,$hostname) = each(%possible_hosts)) { 14738: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) { 14739: $result{$host} = $hostname; 14740: } 14741: } 14742: } else { 14743: while ( my ($host,$hostname) = each(%possible_hosts)) { 14744: if ($hostdom{$host} eq $domain) { 14745: $result{$host} = $hostname; 14746: } 14747: } 14748: } 14749: return %result; 14750: } 14751: 14752: sub get_unique_servers { 14753: my %unique = reverse &get_servers(@_); 14754: return reverse %unique; 14755: } 14756: 14757: sub host_domain { 14758: &load_hosts_tab() if (!$loaded); 14759: 14760: my ($lonid) = @_; 14761: return $hostdom{$lonid}; 14762: } 14763: 14764: sub all_domains { 14765: &load_hosts_tab() if (!$loaded); 14766: 14767: my %seen; 14768: my @uniq = grep(!$seen{$_}++, values(%hostdom)); 14769: return @uniq; 14770: } 14771: 14772: sub internet_dom { 14773: &load_hosts_tab() if (!$loaded); 14774: 14775: my ($lonid) = @_; 14776: return $internetdom{$lonid}; 14777: } 14778: 14779: sub is_LC_dns { 14780: &load_hosts_tab() if (!$loaded); 14781: 14782: my ($hostname) = @_; 14783: return exists($LC_dns_serv{$hostname}); 14784: } 14785: 14786: } 14787: 14788: { 14789: my %iphost; 14790: my %name_to_ip; 14791: my %lonid_to_ip; 14792: 14793: sub get_hosts_from_ip { 14794: my ($ip) = @_; 14795: my %iphosts = &get_iphost(); 14796: if (ref($iphosts{$ip})) { 14797: return @{$iphosts{$ip}}; 14798: } 14799: return; 14800: } 14801: 14802: sub reset_hosts_ip_info { 14803: undef(%iphost); 14804: undef(%name_to_ip); 14805: undef(%lonid_to_ip); 14806: } 14807: 14808: sub get_host_ip { 14809: my ($lonid) = @_; 14810: if (exists($lonid_to_ip{$lonid})) { 14811: return $lonid_to_ip{$lonid}; 14812: } 14813: my $name=&hostname($lonid); 14814: my $ip = gethostbyname($name); 14815: return if (!$ip || length($ip) ne 4); 14816: $ip=inet_ntoa($ip); 14817: $name_to_ip{$name} = $ip; 14818: $lonid_to_ip{$lonid} = $ip; 14819: return $ip; 14820: } 14821: 14822: sub get_iphost { 14823: my ($ignore_cache,$nocache) = @_; 14824: 14825: if (!$ignore_cache) { 14826: if (%iphost) { 14827: return %iphost; 14828: } 14829: my ($ip_info,$cached)= 14830: &Apache::lonnet::is_cached_new('iphost','iphost'); 14831: if ($cached) { 14832: %iphost = %{$ip_info->[0]}; 14833: %name_to_ip = %{$ip_info->[1]}; 14834: %lonid_to_ip = %{$ip_info->[2]}; 14835: return %iphost; 14836: } 14837: } 14838: 14839: # get yesterday's info for fallback 14840: my %old_name_to_ip; 14841: my ($ip_info,$cached)= 14842: &Apache::lonnet::is_cached_new('iphost','iphost'); 14843: if ($cached) { 14844: %old_name_to_ip = %{$ip_info->[1]}; 14845: } 14846: 14847: my %name_to_host = &all_names($ignore_cache,$nocache); 14848: foreach my $name (keys(%name_to_host)) { 14849: my $ip; 14850: if (!exists($name_to_ip{$name})) { 14851: $ip = gethostbyname($name); 14852: if (!$ip || length($ip) ne 4) { 14853: if (defined($old_name_to_ip{$name})) { 14854: $ip = $old_name_to_ip{$name}; 14855: &logthis("Can't find $name defaulting to old $ip"); 14856: } else { 14857: &logthis("Name $name no IP found"); 14858: next; 14859: } 14860: } else { 14861: $ip=inet_ntoa($ip); 14862: } 14863: $name_to_ip{$name} = $ip; 14864: } else { 14865: $ip = $name_to_ip{$name}; 14866: } 14867: foreach my $id (@{ $name_to_host{$name} }) { 14868: $lonid_to_ip{$id} = $ip; 14869: } 14870: push(@{$iphost{$ip}},@{$name_to_host{$name}}); 14871: } 14872: unless ($nocache) { 14873: &do_cache_new('iphost','iphost', 14874: [\%iphost,\%name_to_ip,\%lonid_to_ip], 14875: 48*60*60); 14876: } 14877: 14878: return %iphost; 14879: } 14880: 14881: # 14882: # Given a DNS returns the loncapa host name for that DNS 14883: # 14884: sub host_from_dns { 14885: my ($dns) = @_; 14886: my @hosts; 14887: my $ip; 14888: 14889: if (exists($name_to_ip{$dns})) { 14890: $ip = $name_to_ip{$dns}; 14891: } 14892: if (!$ip) { 14893: $ip = gethostbyname($dns); # Initial translation to IP is in net order. 14894: if (length($ip) == 4) { 14895: $ip = &IO::Socket::inet_ntoa($ip); 14896: } 14897: } 14898: if ($ip) { 14899: @hosts = get_hosts_from_ip($ip); 14900: return $hosts[0]; 14901: } 14902: return undef; 14903: } 14904: 14905: sub get_internet_names { 14906: my ($lonid) = @_; 14907: return if ($lonid eq ''); 14908: my ($idnref,$cached)= 14909: &Apache::lonnet::is_cached_new('internetnames',$lonid); 14910: if ($cached) { 14911: return $idnref; 14912: } 14913: my $ip = &get_host_ip($lonid); 14914: my @hosts = &get_hosts_from_ip($ip); 14915: my %iphost = &get_iphost(); 14916: my (@idns,%seen); 14917: foreach my $id (@hosts) { 14918: my $dom = &host_domain($id); 14919: my $prim_id = &domain($dom,'primary'); 14920: my $prim_ip = &get_host_ip($prim_id); 14921: next if ($seen{$prim_ip}); 14922: if (ref($iphost{$prim_ip}) eq 'ARRAY') { 14923: foreach my $id (@{$iphost{$prim_ip}}) { 14924: my $intdom = &internet_dom($id); 14925: unless (grep(/^\Q$intdom\E$/,@idns)) { 14926: push(@idns,$intdom); 14927: } 14928: } 14929: } 14930: $seen{$prim_ip} = 1; 14931: } 14932: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60); 14933: } 14934: 14935: } 14936: 14937: sub all_loncaparevs { 14938: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11); 14939: } 14940: 14941: # ---------------------------------------------------------- Read loncaparev table 14942: { 14943: sub load_loncaparevs { 14944: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") { 14945: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) { 14946: while (my $configline=<$config>) { 14947: chomp($configline); 14948: my ($hostid,$loncaparev)=split(/:/,$configline); 14949: $loncaparevs{$hostid}=$loncaparev; 14950: } 14951: close($config); 14952: } 14953: } 14954: } 14955: } 14956: 14957: # ---------------------------------------------------------- Read serverhostID table 14958: { 14959: sub load_serverhomeIDs { 14960: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") { 14961: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) { 14962: while (my $configline=<$config>) { 14963: chomp($configline); 14964: my ($name,$id)=split(/:/,$configline); 14965: $serverhomeIDs{$name}=$id; 14966: } 14967: close($config); 14968: } 14969: } 14970: } 14971: } 14972: 14973: 14974: BEGIN { 14975: 14976: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf 14977: unless ($readit) { 14978: { 14979: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf'); 14980: %perlvar = (%perlvar,%{$configvars}); 14981: } 14982: 14983: 14984: # ------------------------------------------------------ Read spare server file 14985: { 14986: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab"); 14987: 14988: while (my $configline=<$config>) { 14989: chomp($configline); 14990: if ($configline) { 14991: my ($host,$type) = split(':',$configline,2); 14992: if (!defined($type) || $type eq '') { $type = 'default' }; 14993: push(@{ $spareid{$type} }, $host); 14994: } 14995: } 14996: close($config); 14997: } 14998: # ------------------------------------------------------------ Read permissions 14999: { 15000: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab"); 15001: 15002: while (my $configline=<$config>) { 15003: chomp($configline); 15004: if ($configline) { 15005: my ($role,$perm)=split(/ /,$configline); 15006: if ($perm ne '') { $pr{$role}=$perm; } 15007: } 15008: } 15009: close($config); 15010: } 15011: 15012: # -------------------------------------------- Read plain texts for permissions 15013: { 15014: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab"); 15015: 15016: while (my $configline=<$config>) { 15017: chomp($configline); 15018: if ($configline) { 15019: my ($short,@plain)=split(/:/,$configline); 15020: %{$prp{$short}} = (); 15021: if (@plain > 0) { 15022: $prp{$short}{'std'} = $plain[0]; 15023: for (my $i=1; $i<@plain; $i++) { 15024: $prp{$short}{'alt'.$i} = $plain[$i]; 15025: } 15026: } 15027: } 15028: } 15029: close($config); 15030: } 15031: 15032: # ---------------------------------------------------------- Read package table 15033: { 15034: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab"); 15035: 15036: while (my $configline=<$config>) { 15037: if ($configline !~ /\S/ || $configline=~/^#/) { next; } 15038: chomp($configline); 15039: my ($short,$plain)=split(/:/,$configline); 15040: my ($pack,$name)=split(/\&/,$short); 15041: if ($plain ne '') { 15042: $packagetab{$pack.'&'.$name.'&name'}=$name; 15043: $packagetab{$short}=$plain; 15044: } 15045: } 15046: close($config); 15047: } 15048: 15049: # ---------------------------------------------------------- Read loncaparev table 15050: 15051: &load_loncaparevs(); 15052: 15053: # ---------------------------------------------------------- Read serverhostID table 15054: 15055: &load_serverhomeIDs(); 15056: 15057: # ---------------------------------------------------------- Read releaseslist XML 15058: { 15059: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml'; 15060: if (-e $file) { 15061: my $parser = HTML::LCParser->new($file); 15062: while (my $token = $parser->get_token()) { 15063: if ($token->[0] eq 'S') { 15064: my $item = $token->[1]; 15065: my $name = $token->[2]{'name'}; 15066: my $value = $token->[2]{'value'}; 15067: my $valuematch = $token->[2]{'valuematch'}; 15068: my $namematch = $token->[2]{'namematch'}; 15069: if ($item eq 'parameter') { 15070: if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) { 15071: my $release = $parser->get_text(); 15072: $release =~ s/(^\s*|\s*$ )//gx; 15073: $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release; 15074: } 15075: } elsif ($item ne '' && $name ne '') { 15076: my $release = $parser->get_text(); 15077: $release =~ s/(^\s*|\s*$ )//gx; 15078: $needsrelease{$item.':'.$name.':'.$value} = $release; 15079: } 15080: } 15081: } 15082: } 15083: } 15084: 15085: # ---------------------------------------------------------- Read managers table 15086: { 15087: if (-e "$perlvar{'lonTabDir'}/managers.tab") { 15088: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) { 15089: while (my $configline=<$config>) { 15090: chomp($configline); 15091: next if ($configline =~ /^\#/); 15092: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) { 15093: $managerstab{$configline} = 1; 15094: } 15095: } 15096: close($config); 15097: } 15098: } 15099: } 15100: 15101: # ------------- set up temporary directory 15102: { 15103: $tmpdir = LONCAPA::tempdir(); 15104: 15105: } 15106: 15107: # ------------- set default texengine (domain default overrides this) 15108: { 15109: $deftex = LONCAPA::texengine(); 15110: } 15111: 15112: # ------------- set default minimum length for passwords for internal auth users 15113: { 15114: $passwdmin = LONCAPA::passwd_min(); 15115: } 15116: 15117: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'], 15118: 'compress_threshold'=> 20_000, 15119: }); 15120: 15121: $processmarker='_'.time.'_'.$perlvar{'lonHostID'}; 15122: $dumpcount=0; 15123: $locknum=0; 15124: 15125: &logtouch(); 15126: &logthis('INFO: Read configuration'); 15127: $readit=1; 15128: { 15129: use integer; 15130: my $test=(2**32)+1; 15131: if ($test != 0) { $_64bit=1; } else { $_64bit=0; } 15132: &logthis(" Detected 64bit platform ($_64bit)"); 15133: } 15134: } 15135: } 15136: 15137: 1; 15138: __END__ 15139: 15140: =pod 15141: 15142: =head1 NAME 15143: 15144: Apache::lonnet - Subroutines to ask questions about things in the network. 15145: 15146: =head1 SYNOPSIS 15147: 15148: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network. 15149: 15150: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS); 15151: 15152: Common parameters: 15153: 15154: =over 4 15155: 15156: =item * 15157: 15158: $uname : an internal username (if $cname expecting a course Id specifically) 15159: 15160: =item * 15161: 15162: $udom : a domain (if $cdom expecting a course's domain specifically) 15163: 15164: =item * 15165: 15166: $symb : a resource instance identifier 15167: 15168: =item * 15169: 15170: $namespace : the name of a .db file that contains the data needed or 15171: being set. 15172: 15173: =back 15174: 15175: =head1 OVERVIEW 15176: 15177: lonnet provides subroutines which interact with the 15178: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask 15179: about classes, users, and resources. 15180: 15181: For many of these objects you can also use this to store data about 15182: them or modify them in various ways. 15183: 15184: =head2 Symbs 15185: 15186: To identify a specific instance of a resource, LON-CAPA uses symbols 15187: or "symbs"X<symb>. These identifiers are built from the URL of the 15188: map, the resource number of the resource in the map, and the URL of 15189: the resource itself. The latter is somewhat redundant, but might help 15190: if maps change. 15191: 15192: An example is 15193: 15194: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem 15195: 15196: The respective map entry is 15197: 15198: <resource id="19" src="/res/msu/korte/tests/part12.problem" 15199: title="Problem 2"> 15200: </resource> 15201: 15202: Symbs are used by the random number generator, as well as to store and 15203: restore data specific to a certain instance of for example a problem. 15204: 15205: =head2 Storing And Retrieving Data 15206: 15207: X<store()>X<cstore()>X<restore()>Three of the most important functions 15208: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>, 15209: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which 15210: is is the non-critical message twin of cstore. These functions are for 15211: handlers to store a perl hash to a user's permanent data space in an 15212: easy manner, and to retrieve it again on another call. It is expected 15213: that a handler would use this once at the beginning to retrieve data, 15214: and then again once at the end to send only the new data back. 15215: 15216: The data is stored in the user's data directory on the user's 15217: homeserver under the ID of the course. 15218: 15219: The hash that is returned by restore will have all of the previous 15220: value for all of the elements of the hash. 15221: 15222: Example: 15223: 15224: #creating a hash 15225: my %hash; 15226: $hash{'foo'}='bar'; 15227: 15228: #storing it 15229: &Apache::lonnet::cstore(\%hash); 15230: 15231: #changing a value 15232: $hash{'foo'}='notbar'; 15233: 15234: #adding a new value 15235: $hash{'bar'}='foo'; 15236: &Apache::lonnet::cstore(\%hash); 15237: 15238: #retrieving the hash 15239: my %history=&Apache::lonnet::restore(); 15240: 15241: #print the hash 15242: foreach my $key (sort(keys(%history))) { 15243: print("\%history{$key} = $history{$key}"); 15244: } 15245: 15246: Will print out: 15247: 15248: %history{1:foo} = bar 15249: %history{1:keys} = foo:timestamp 15250: %history{1:timestamp} = 990455579 15251: %history{2:bar} = foo 15252: %history{2:foo} = notbar 15253: %history{2:keys} = foo:bar:timestamp 15254: %history{2:timestamp} = 990455580 15255: %history{bar} = foo 15256: %history{foo} = notbar 15257: %history{timestamp} = 990455580 15258: %history{version} = 2 15259: 15260: Note that the special hash entries C<keys>, C<version> and 15261: C<timestamp> were added to the hash. C<version> will be equal to the 15262: total number of versions of the data that have been stored. The 15263: C<timestamp> attribute will be the UNIX time the hash was 15264: stored. C<keys> is available in every historical section to list which 15265: keys were added or changed at a specific historical revision of a 15266: hash. 15267: 15268: B<Warning>: do not store the hash that restore returns directly. This 15269: will cause a mess since it will restore the historical keys as if the 15270: were new keys. I.E. 1:foo will become 1:1:foo etc. 15271: 15272: Calling convention: 15273: 15274: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname); 15275: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore); 15276: 15277: For more detailed information, see lonnet specific documentation. 15278: 15279: =head1 RETURN MESSAGES 15280: 15281: =over 4 15282: 15283: =item * B<con_lost>: unable to contact remote host 15284: 15285: =item * B<con_delayed>: unable to contact remote host, message will be delivered 15286: when the connection is brought back up 15287: 15288: =item * B<con_failed>: unable to contact remote host and unable to save message 15289: for later delivery 15290: 15291: =item * B<error:>: an error a occurred, a description of the error follows the : 15292: 15293: =item * B<no_such_host>: unable to fund a host associated with the user/domain 15294: that was requested 15295: 15296: =back 15297: 15298: =head1 PUBLIC SUBROUTINES 15299: 15300: =head2 Session Environment Functions 15301: 15302: =over 4 15303: 15304: =item * 15305: X<appenv()> 15306: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to 15307: the user envirnoment file, and will be restored for each access this 15308: user makes during this session, also modifies the %env for the current 15309: process. Optional rolesarrayref - if defined contains a reference to an array 15310: of roles which are exempt from the restriction on modifying user.role entries 15311: in the user's environment.db and in %env. 15312: 15313: =item * 15314: X<delenv()> 15315: B<delenv($delthis,$regexp)>: removes all items from the session 15316: environment file that begin with $delthis. If the 15317: optional second arg - $regexp - is true, $delthis is treated as a 15318: regular expression, otherwise \Q$delthis\E is used. 15319: The values are also deleted from the current processes %env. 15320: 15321: =item * get_env_multiple($name) 15322: 15323: gets $name from the %env hash, it seemlessly handles the cases where multiple 15324: values may be defined and end up as an array ref. 15325: 15326: returns an array of values 15327: 15328: =back 15329: 15330: =head2 User Information 15331: 15332: =over 4 15333: 15334: =item * 15335: X<queryauthenticate()> 15336: B<queryauthenticate($uname,$udom)>: try to determine user's current 15337: authentication scheme 15338: 15339: =item * 15340: X<authenticate()> 15341: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to 15342: authenticate user from domain's lib servers (first use the current 15343: one). C<$upass> should be the users password. 15344: $checkdefauth is optional (value is 1 if a check should be made to 15345: authenticate user using default authentication method, and allow 15346: account creation if username does not have account in the domain). 15347: $clientcancheckhost is optional (value is 1 if checking whether the 15348: server can host will occur on the client side in lonauth.pm). 15349: 15350: =item * 15351: X<homeserver()> 15352: B<homeserver($uname,$udom)>: find the server which has 15353: the user's directory and files (there must be only one), this caches 15354: the answer, and also caches if there is a borken connection. 15355: 15356: =item * 15357: X<idget()> 15358: B<idget($udom,$idsref,$namespace)>: find the usernames behind either 15359: a list of student/employee IDs or clicker IDs 15360: (student/employee IDs are a unique resource in a domain, there must be 15361: only 1 ID per username, and only 1 username per ID in a specific domain). 15362: clickerIDs are not necessarily unique, as students might share clickers. 15363: (returns hash: id=>name,id=>name) 15364: 15365: =item * 15366: X<idrget()> 15367: B<idrget($udom,@unames)>: find the IDs behind a list of 15368: usernames (returns hash: name=>id,name=>id) 15369: 15370: =item * 15371: X<idput()> 15372: B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of 15373: names and associated student/employee IDs or clicker IDs. 15374: 15375: =item * 15376: X<iddel()> 15377: B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted 15378: student/employee ID or clicker ID username look-ups from domain. 15379: The homeserver ($uhome) and namespace ($namespace) are optional. 15380: If no $uhome is provided, it will be determined usig &homeserver() 15381: for each user. If no $namespace is provided, the default is ids. 15382: 15383: =item * 15384: X<updateclickers()> 15385: B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update 15386: clicker ID-to-username look-ups in clickers.db on library server. 15387: Permitted actions are add or del (i.e., add or delete). The 15388: clickers.db contains clickerID as keys (escaped), and each corresponding 15389: value is an escaped comma-separated list of usernames (for whom the 15390: library server is the homeserver), who registered that particular ID. 15391: If $critical is true, the update will be sent via &critical, otherwise 15392: &reply() will be used. 15393: 15394: =item * 15395: X<rolesinit()> 15396: B<rolesinit($udom,$username)>: get user privileges. 15397: returns user role, first access and timer interval hashes 15398: 15399: =item * 15400: X<privileged()> 15401: B<privileged($username,$domain)>: returns a true if user has a 15402: privileged and active role (i.e. su or dc), false otherwise. 15403: 15404: =item * 15405: X<getsection()> 15406: B<getsection($udom,$uname,$cname)>: finds the section of student in the 15407: course $cname, return section name/number or '' for "not in course" 15408: and '-1' for "no section" 15409: 15410: =item * 15411: X<userenvironment()> 15412: B<userenvironment($udom,$uname,@what)>: gets the values of the keys 15413: passed in @what from the requested user's environment, returns a hash 15414: 15415: =item * 15416: X<userlog_query()> 15417: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's 15418: activity.log file. %filters defines filters applied when parsing the 15419: log file. These can be start or end timestamps, or the type of action 15420: - log to look for Login or Logout events, check for Checkin or 15421: Checkout, role for role selection. The response is in the form 15422: timestamp1:hostid1:event1&timestamp2:hostid2:event2 where events are 15423: escaped strings of the action recorded in the activity.log file. 15424: 15425: =back 15426: 15427: =head2 User Roles 15428: 15429: =over 4 15430: 15431: =item * 15432: 15433: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege; 15434: returns codes for allowed actions. 15435: 15436: The first argument is required, all others are optional. 15437: 15438: $priv is the privilege being checked. 15439: $uri contains additional information about what is being checked for access (e.g., 15440: URL, course ID etc.). 15441: $symb is the unique resource instance identifier in a course; if needed, 15442: but not provided, it will be retrieved via a call to &symbread(). 15443: $role is the role for which a priv is being checked (only used if priv is evb). 15444: $clientip is the user's IP address (only used when checking for access to portfolio 15445: files). 15446: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This 15447: prevents recursive calls to &allowed. 15448: 15449: F: full access 15450: U,I,K: authentication modes (cxx only) 15451: '': forbidden 15452: 1: user needs to choose course 15453: 2: browse allowed 15454: A: passphrase authentication needed 15455: B: access temporarily blocked because of a blocking event in a course. 15456: D: access blocked because access is required via session initiated via deep-link 15457: 15458: =item * 15459: 15460: constructaccess($url,$setpriv) : check for access to construction space URL 15461: 15462: See if the owner domain and name in the URL match those in the 15463: expected environment. If so, return three element list 15464: ($ownername,$ownerdomain,$ownerhome). 15465: 15466: Otherwise return the null string. 15467: 15468: If second argument 'setpriv' is true, it assigns the privileges, 15469: and returns the same three element list, unless the owner has 15470: blocked "ad hoc" Domain Coordinator access to the Author Space, 15471: in which case the null string is returned. 15472: 15473: =item * 15474: 15475: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role; 15476: define a custom role rolename set privileges in format of lonTabs/roles.tab 15477: for system, domain, and course level. $uname and $udom are optional (current 15478: user's username and domain will be used when either of $uname or $udom are absent. 15479: 15480: =item * 15481: 15482: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash 15483: (rolesplain.tab); plain text explanation of a user role term. 15484: $type is Course (default) or Community. 15485: If $forcedefault evaluates to true, text returned will be default 15486: text for $type. Otherwise, if this is a course, the text returned 15487: will be a custom name for the role (if defined in the course's 15488: environment). If no custom name is defined the default is returned. 15489: 15490: =item * 15491: 15492: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) : 15493: All arguments are optional. Returns a hash of a roles, either for 15494: co-author/assistant author roles for a user's Construction Space 15495: (default), or if $context is 'userroles', roles for the user himself, 15496: In the hash, keys are set to colon-separated $uname,$udom,$role, and 15497: (optionally) if $withsec is true, a fourth colon-separated item - $section. 15498: For each key, value is set to colon-separated start and end times for 15499: the role. If no username and domain are specified, will default to 15500: current user/domain. Types, roles, and roledoms are references to arrays 15501: of role statuses (active, future or previous), roles 15502: (e.g., cc,in, st etc.) and domains of the roles which can be used 15503: to restrict the list of roles reported. If no array ref is 15504: provided for types, will default to return only active roles. 15505: 15506: =item * 15507: 15508: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if 15509: user: $uname:$udom has a role in the course: $cdom_$cnum. 15510: 15511: Additional optional arguments are: $type (if role checking is to be restricted 15512: to certain user status types -- previous (expired roles), active (currently 15513: available roles) or future (roles available in the future), and 15514: $hideprivileged -- if true will not report course roles for users who 15515: have active Domain Coordinator role in course's domain or in additional 15516: domains (specified in 'Domains to check for privileged users' in course 15517: environment -- set via: Course Settings -> Classlists and staff listing). 15518: 15519: =item * 15520: 15521: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user 15522: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User) 15523: $possdomains and $possroles are optional array refs -- to domains to check and 15524: roles to check. If $possdomains is not specified, a dump will be done of the 15525: users' roles.db to check for a dc or su role in any domain. This can be 15526: time consuming if &privileged is called repeatedly (e.g., when displaying a 15527: classlist), so in such cases, supplying a $possdomains array is preferred, as 15528: this then allows &privileged_by_domain() to be used, which caches the identity 15529: of privileged users, eliminating the need for repeated calls to &dump(). 15530: 15531: =item * 15532: 15533: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash, 15534: where the outer hash keys are domains specified in the $possdomains array ref, 15535: next inner hash keys are privileged roles specified in the $roles array ref, 15536: and the innermost hash contains key = value pairs for username:domain = end:start 15537: for active or future "privileged" users with that role in that domain. To avoid 15538: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the 15539: innerhash are cached using priv_$role and $dom as the identifiers. 15540: 15541: =back 15542: 15543: =head2 User Modification 15544: 15545: =over 4 15546: 15547: =item * 15548: 15549: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a 15550: user for the level given by URL. Optional start and end dates (leave empty 15551: string or zero for "no date") 15552: 15553: =item * 15554: 15555: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to 15556: change a users, password, possible return values are: ok, 15557: pwchange_failure, non_authorized, auth_mode_error, unknown_user, 15558: refused 15559: 15560: =item * 15561: 15562: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication 15563: 15564: =item * 15565: 15566: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene, 15567: $forceid,$desiredhome,$email,$inststatus,$candelete) : 15568: 15569: will update user information (firstname,middlename,lastname,generation, 15570: permanentemail), and if forceid is true, student/employee ID also. 15571: A user's institutional affiliation(s) can also be updated. 15572: User information fields will not be overwritten with empty entries 15573: unless the field is included in the $candelete array reference. 15574: This array is included when a single user is modified via "Manage Users", 15575: or when Autoupdate.pl is run by cron in a domain. 15576: 15577: =item * 15578: 15579: modifystudent 15580: 15581: modify a student's enrollment and identification information. 15582: The course id is resolved based on the current user's environment. 15583: This means the invoking user must be a course coordinator or otherwise 15584: associated with a course. 15585: 15586: This call is essentially a wrapper for lonnet::modifyuser and 15587: lonnet::modify_student_enrollment 15588: 15589: Inputs: 15590: 15591: =over 4 15592: 15593: =item B<$udom> Student's loncapa domain 15594: 15595: =item B<$uname> Student's loncapa login name 15596: 15597: =item B<$uid> Student/Employee ID 15598: 15599: =item B<$umode> Student's authentication mode 15600: 15601: =item B<$upass> Student's password 15602: 15603: =item B<$first> Student's first name 15604: 15605: =item B<$middle> Student's middle name 15606: 15607: =item B<$last> Student's last name 15608: 15609: =item B<$gene> Student's generation 15610: 15611: =item B<$usec> Student's section in course 15612: 15613: =item B<$end> Unix time of the roles expiration 15614: 15615: =item B<$start> Unix time of the roles start date 15616: 15617: =item B<$forceid> If defined, allow $uid to be changed 15618: 15619: =item B<$desiredhome> server to use as home server for student 15620: 15621: =item B<$email> Student's permanent e-mail address 15622: 15623: =item B<$type> Type of enrollment (auto or manual) 15624: 15625: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto 15626: 15627: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC 15628: 15629: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment 15630: 15631: =item B<$context> role change context (shown in User Management Logs display in a course) 15632: 15633: =item B<$inststatus> institutional status of user - : separated string of escaped status types 15634: 15635: =item B<$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. 15636: 15637: =back 15638: 15639: =item * 15640: 15641: modify_student_enrollment 15642: 15643: Change a student's enrollment status in a class. The environment variable 15644: 'role.request.course' must be defined for this function to proceed. 15645: 15646: Inputs: 15647: 15648: =over 4 15649: 15650: =item $udom, student's domain 15651: 15652: =item $uname, student's name 15653: 15654: =item $uid, student's user id 15655: 15656: =item $first, student's first name 15657: 15658: =item $middle 15659: 15660: =item $last 15661: 15662: =item $gene 15663: 15664: =item $usec 15665: 15666: =item $end 15667: 15668: =item $start 15669: 15670: =item $type 15671: 15672: =item $locktype 15673: 15674: =item $cid 15675: 15676: =item $selfenroll 15677: 15678: =item $context 15679: 15680: =item $credits, number of credits student will earn from this class 15681: 15682: =item $instsec, institutional course section code for student 15683: 15684: =back 15685: 15686: 15687: =item * 15688: 15689: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign 15690: custom role; give a custom role to a user for the level given by URL. Specify 15691: name and domain of role author, and role name 15692: 15693: =item * 15694: 15695: revokerole($udom,$uname,$url,$role) : revoke a role for url 15696: 15697: =item * 15698: 15699: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role 15700: 15701: =back 15702: 15703: =head2 Course Infomation 15704: 15705: =over 4 15706: 15707: =item * 15708: 15709: coursedescription($courseid,$options) : returns a hash of information about the 15710: specified course id, including all environment settings for the 15711: course, the description of the course will be in the hash under the 15712: key 'description' 15713: 15714: $options is an optional parameter that if supplied is a hash reference that controls 15715: what how this function works. It has the following key/values: 15716: 15717: =over 4 15718: 15719: =item freshen_cache 15720: 15721: If defined, and the environment cache for the course is valid, it is 15722: returned in the returned hash. 15723: 15724: =item one_time 15725: 15726: If defined, the last cache time is set to _now_ 15727: 15728: =item user 15729: 15730: If defined, the supplied username is used instead of the current user. 15731: 15732: 15733: =back 15734: 15735: =item * 15736: 15737: resdata($name,$domain,$type,@which) : request for current parameter 15738: setting for a specific $type, where $type is either 'course' or 'user', 15739: @what should be a list of parameters to ask about. This routine caches 15740: answers for 10 minutes. 15741: 15742: =item * 15743: 15744: get_courseresdata($courseid, $domain) : dump the entire course resource 15745: data base, returning a hash that is keyed by the resource name and has 15746: values that are the resource value. I believe that the timestamps and 15747: versions are also returned. 15748: 15749: get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's 15750: supplemental content area. This routine caches the number of files for 15751: 10 minutes. 15752: 15753: =back 15754: 15755: =head2 Course Modification 15756: 15757: =over 4 15758: 15759: =item * 15760: 15761: writecoursepref($courseid,%prefs) : write preferences (environment 15762: database) for a course 15763: 15764: =item * 15765: 15766: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course 15767: 15768: =item * 15769: 15770: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community). 15771: 15772: =item * 15773: 15774: is_course($courseid), is_course($cdom, $cnum) 15775: 15776: Accepts either a combined $courseid (in the form of domain_courseid) or the 15777: two component version $cdom, $cnum. It checks if the specified course exists. 15778: 15779: Returns: 15780: undef if the course doesn't exist, otherwise 15781: in scalar context the combined courseid. 15782: in list context the two components of the course identifier, domain and 15783: courseid. 15784: 15785: =back 15786: 15787: =head2 Bubblesheet Configuration 15788: 15789: =over 4 15790: 15791: =item * 15792: 15793: get_scantron_config($which) 15794: 15795: $which - the name of the configuration to parse from the file. 15796: 15797: Parses and returns the bubblesheet configuration line selected as a 15798: hash of configuration file fields. 15799: 15800: 15801: Returns: 15802: If the named configuration is not in the file, an empty 15803: hash is returned. 15804: 15805: a hash with the fields 15806: name - internal name for the this configuration setup 15807: description - text to display to operator that describes this config 15808: CODElocation - if 0 or the string 'none' 15809: - no CODE exists for this config 15810: if -1 || the string 'letter' 15811: - a CODE exists for this config and is 15812: a string of letters 15813: Unsupported value (but planned for future support) 15814: if a positive integer 15815: - The CODE exists as the first n items from 15816: the question section of the form 15817: if the string 'number' 15818: - The CODE exists for this config and is 15819: a string of numbers 15820: CODEstart - (only matter if a CODE exists) column in the line where 15821: the CODE starts 15822: CODElength - length of the CODE 15823: IDstart - column where the student/employee ID starts 15824: IDlength - length of the student/employee ID info 15825: Qstart - column where the information from the bubbled 15826: 'questions' start 15827: Qlength - number of columns comprising a single bubble line from 15828: the sheet. (usually either 1 or 10) 15829: Qon - either a single character representing the character used 15830: to signal a bubble was chosen in the positional setup, or 15831: the string 'letter' if the letter of the chosen bubble is 15832: in the final, or 'number' if a number representing the 15833: chosen bubble is in the file (1->A 0->J) 15834: Qoff - the character used to represent that a bubble was 15835: left blank 15836: PaperID - if the scanning process generates a unique number for each 15837: sheet scanned the column that this ID number starts in 15838: PaperIDlength - number of columns that comprise the unique ID number 15839: for the sheet of paper 15840: FirstName - column that the first name starts in 15841: FirstNameLength - number of columns that the first name spans 15842: LastName - column that the last name starts in 15843: LastNameLength - number of columns that the last name spans 15844: BubblesPerRow - number of bubbles available in each row used to 15845: bubble an answer. (If not specified, 10 assumed). 15846: 15847: 15848: =item * 15849: 15850: get_scantronformat_file($cdom) 15851: 15852: $cdom - the course's domain (optional); if not supplied, uses 15853: domain for current $env{'request.course.id'}. 15854: 15855: Returns an array containing lines from the scantron format file for 15856: the domain of the course. 15857: 15858: If a url for a custom.tab file is listed in domain's configuration.db, 15859: lines are from this file. 15860: 15861: Otherwise, if a default.tab has been published in RES space by the 15862: domainconfig user, lines are from this file. 15863: 15864: Otherwise, fall back to getting lines from the legacy file on the 15865: local server: /home/httpd/lonTabs/default_scantronformat.tab 15866: 15867: =back 15868: 15869: =head2 Resource Subroutines 15870: 15871: =over 4 15872: 15873: =item * 15874: 15875: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead) 15876: 15877: =item * 15878: 15879: repcopy($filename) : subscribes to the requested file, and attempts to 15880: replicate from the owning library server, Might return 15881: 'unavailable', 'not_found', 'forbidden', 'ok', or 15882: 'bad_request', also attempts to grab the metadata for the 15883: resource. Expects the local filesystem pathname 15884: (/home/httpd/html/res/....) 15885: 15886: =back 15887: 15888: =head2 Resource Information 15889: 15890: =over 4 15891: 15892: =item * 15893: 15894: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates 15895: and returns the value of a variety of different possible values, 15896: $varname should be a request string, and the other parameters can be 15897: used to specify who and what one is asking about. Ordinarily, $cid 15898: does not need to be specified, as it is retrived from 15899: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called 15900: within lonuserstate::loadmap() when initializing a course, before 15901: $env{'request.course.id'} has been set, so it needs to be provided 15902: in that one case. 15903: 15904: Possible values for $varname are environment.lastname (or other item 15905: from the envirnment hash), user.name (or someother aspect about the 15906: user), resource.0.maxtries (or some other part and parameter of a 15907: resource) 15908: 15909: =item * 15910: 15911: directcondval($number) : get current value of a condition; reads from a state 15912: string 15913: 15914: =item * 15915: 15916: condval($condidx) : value of condition index based on state 15917: 15918: =item * 15919: 15920: metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a 15921: resource's metadata, $what should be either a specific key, or either 15922: 'keys' (to get a list of possible keys) or 'packages' to get a list of 15923: packages that this resource currently uses, the last 3 arguments are 15924: only used internally for recursive metadata. 15925: 15926: the toolsymb is only used where the uri is for an external tool (for which 15927: the uri as well as the symb are guaranteed to be unique). 15928: 15929: this function automatically caches all requests except any made recursively 15930: to retrieve a list of metadata keys for an imported library file ($liburi is 15931: defined). 15932: 15933: =item * 15934: 15935: metadata_query($query,$custom,$customshow) : make a metadata query against the 15936: network of library servers; returns file handle of where SQL and regex results 15937: will be stored for query 15938: 15939: =item * 15940: 15941: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) : 15942: return symbolic list entry (all arguments optional). 15943: 15944: Args: filename is the filename (including path) for the file for which a symb 15945: is required; donotrecurse, if true will prevent calls to allowed() being made 15946: to check access status if more than one resource was found in the bighash 15947: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of 15948: a randompick); ignorecachednull, if true will prevent a symb of '' being 15949: returned if $env{$cache_str} is defined as ''; checkforblock if true will 15950: cause possible symbs to be checked to determine if they are subject to content 15951: blocking, if so they will not be included as possible symbs; possibles is a 15952: ref to a hash, which, as a side effect, will be populated with all possible 15953: symbs (content blocking not tested). 15954: 15955: returns the data handle 15956: 15957: =item * 15958: 15959: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists 15960: and is a possible symb for the URL in $thisfn, and if is an encrypted 15961: resource that the user accessed using /enc/ returns a 1 on success, 0 15962: on failure, user must be in a course, as it assumes the existence of 15963: the course initial hash, and uses $env('request.course.id'}. The third 15964: arg is an optional reference to a scalar. If this arg is passed in the 15965: call to symbverify, it will be set to 1 if the symb has been set to be 15966: encrypted; otherwise it will be null. 15967: 15968: =item * 15969: 15970: symbclean($symb) : removes versions numbers from a symb, returns the 15971: cleaned symb 15972: 15973: =item * 15974: 15975: is_on_map($uri) : checks if the $uri is somewhere on the current 15976: course map, user must be in a course for it to work. 15977: 15978: =item * 15979: 15980: numval($salt) : return random seed value (addend for rndseed) 15981: 15982: =item * 15983: 15984: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns 15985: a random seed, all arguments are optional, if they aren't sent it uses the 15986: environment to derive them. Note: if symb isn't sent and it can't get one 15987: from &symbread it will use the current time as its return value 15988: 15989: =item * 15990: 15991: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique, 15992: unfakeable, receipt 15993: 15994: =item * 15995: 15996: receipt() : API to ireceipt working off of env values; given out to users 15997: 15998: =item * 15999: 16000: countacc($url) : count the number of accesses to a given URL 16001: 16002: =item * 16003: 16004: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource 16005: 16006: =item * 16007: 16008: checkin($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 $tcrsid) 16009: 16010: =item * 16011: 16012: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet 16013: 16014: =item * 16015: 16016: devalidate($symb) : devalidate temporary spreadsheet calculations, 16017: forcing spreadsheet to reevaluate the resource scores next time. 16018: 16019: =item * 16020: 16021: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource, 16022: when viewing in course context. 16023: 16024: input: six args -- filename (decluttered), course number, course domain, 16025: url, symb (if registered) and group (if this is a 16026: group item -- e.g., bulletin board, group page etc.). 16027: 16028: output: array of five scalars -- 16029: $cfile -- url for file editing if editable on current server 16030: $home -- homeserver of resource (i.e., for author if published, 16031: or course if uploaded.). 16032: $switchserver -- 1 if server switch will be needed. 16033: $forceedit -- 1 if icon/link should be to go to edit mode 16034: $forceview -- 1 if icon/link should be to go to view mode 16035: 16036: =item * 16037: 16038: is_course_upload($file,$cnum,$cdom) 16039: 16040: Used in course context to determine if current file was uploaded to 16041: the course (i.e., would be found in /userfiles/docs on the course's 16042: homeserver. 16043: 16044: input: 3 args -- filename (decluttered), course number and course domain. 16045: output: boolean -- 1 if file was uploaded. 16046: 16047: =back 16048: 16049: =head2 Storing/Retreiving Data 16050: 16051: =over 4 16052: 16053: =item * 16054: 16055: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash 16056: permanently for this url; hashref needs to be given and should be a \%hashname; 16057: the remaining args aren't required and if they aren't passed or are '' they will 16058: be derived from the env (with the exception of $laststore, which is an 16059: optional arg used when a user's submission is stored in grading). 16060: $laststore is $version=$timestamp, where $version is the most recent version 16061: number retrieved for the corresponding $symb in the $namespace db file, and 16062: $timestamp is the timestamp for that transaction (UNIX time). 16063: $laststore is currently only passed when cstore() is called by 16064: structuretags::finalize_storage(). 16065: 16066: =item * 16067: 16068: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store 16069: but uses critical subroutine 16070: 16071: =item * 16072: 16073: restore($symb,$namespace,$udom,$uname) : returns hash for this symb; 16074: all args are optional 16075: 16076: =item * 16077: 16078: dumpstore($namespace,$udom,$uname,$regexp,$range) : 16079: dumps the complete (or key matching regexp) namespace into a hash 16080: ($udom, $uname, $regexp, $range are optional) for a namespace that is 16081: normally &store()ed into 16082: 16083: $range should be either an integer '100' (give me the first 100 16084: matching records) 16085: or be two integers sperated by a - with no spaces 16086: '30-50' (give me the 30th through the 50th matching 16087: records) 16088: 16089: 16090: =item * 16091: 16092: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) : 16093: replaces a &store() version of data with a replacement set of data 16094: for a particular resource in a namespace passed in the $storehash hash 16095: reference. If $tolog is true, the transaction is logged in the courselog 16096: with an action=PUTSTORE. 16097: 16098: =item * 16099: 16100: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that 16101: works very similar to store/cstore, but all data is stored in a 16102: temporary location and can be reset using tmpreset, $storehash should 16103: be a hash reference, returns nothing on success 16104: 16105: =item * 16106: 16107: tmprestore($symb,$namespace,$udom,$uname) : storage that works very 16108: similar to restore, but all data is stored in a temporary location and 16109: can be reset using tmpreset. Returns a hash of values on success, 16110: error string otherwise. 16111: 16112: =item * 16113: 16114: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset, 16115: deltes all keys for $symb form the temporary storage hash. 16116: 16117: =item * 16118: 16119: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array 16120: reference filled in from namesp ($udom and $uname are optional) 16121: 16122: =item * 16123: 16124: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from 16125: namesp ($udom and $uname are optional) 16126: 16127: =item * 16128: 16129: dump($namespace,$udom,$uname,$regexp,$range) : 16130: dumps the complete (or key matching regexp) namespace into a hash 16131: ($udom, $uname, $regexp, $range are optional) 16132: 16133: $range should be either an integer '100' (give me the first 100 16134: matching records) 16135: or be two integers sperated by a - with no spaces 16136: '30-50' (give me the 30th through the 50th matching 16137: records) 16138: =item * 16139: 16140: inc($namespace,$store,$udom,$uname) : increments $store in $namespace. 16141: $store can be a scalar, an array reference, or if the amount to be 16142: incremented is > 1, a hash reference. 16143: 16144: ($udom and $uname are optional) 16145: 16146: =item * 16147: 16148: put($namespace,$storehash,$udom,$uname) : stores hash in namesp 16149: ($udom and $uname are optional) 16150: 16151: =item * 16152: 16153: cput($namespace,$storehash,$udom,$uname) : critical put 16154: ($udom and $uname are optional) 16155: 16156: =item * 16157: 16158: newput($namespace,$storehash,$udom,$uname) : 16159: 16160: Attempts to store the items in the $storehash, but only if they don't 16161: currently exist, if this succeeds you can be certain that you have 16162: successfully created a new key value pair in the $namespace db. 16163: 16164: 16165: Args: 16166: $namespace: name of database to store values to 16167: $storehash: hashref to store to the db 16168: $udom: (optional) domain of user containing the db 16169: $uname: (optional) name of user caontaining the db 16170: 16171: Returns: 16172: 'ok' -> succeeded in storing all keys of $storehash 16173: 'key_exists: <key>' -> failed to anything out of $storehash, as at 16174: least <key> already existed in the db (other 16175: requested keys may also already exist) 16176: 'error: <msg>' -> unable to tie the DB or other error occurred 16177: 'con_lost' -> unable to contact request server 16178: 'refused' -> action was not allowed by remote machine 16179: 16180: 16181: =item * 16182: 16183: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array 16184: reference filled in from namesp (encrypts the return communication) 16185: ($udom and $uname are optional) 16186: 16187: =item * 16188: 16189: log($udom,$name,$home,$message) : write to permanent log for user; use 16190: critical subroutine 16191: 16192: =item * 16193: 16194: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from 16195: array reference filled in from namespace found in domain level on either 16196: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional). 16197: 16198: =item * 16199: 16200: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at 16201: domain level either on specified domain server ($uhome) or primary domain 16202: server ($udom and $uhome are optional) 16203: 16204: =item * 16205: 16206: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults 16207: for: authentication, language, quotas, timezone, date locale, and portal URL in 16208: the target domain. 16209: 16210: May also include additional key => value pairs for the following groups: 16211: 16212: =over 16213: 16214: =item 16215: disk quotas (MB allocated by default to portfolios and authoring spaces). 16216: 16217: =over 16218: 16219: =item defaultquota, authorquota 16220: 16221: =back 16222: 16223: =item 16224: tools (availability of aboutme page, blog, webDAV access for authoring spaces, 16225: portfolio for users). 16226: 16227: =over 16228: 16229: =item 16230: aboutme, blog, webdav, portfolio 16231: 16232: =back 16233: 16234: =item 16235: requestcourses: ability to request courses, and how requests are processed. 16236: 16237: =over 16238: 16239: =item 16240: official, unofficial, community, textbook, placement 16241: 16242: =back 16243: 16244: =item 16245: inststatus: types of institutional affiliation, and order in which they are displayed. 16246: 16247: =over 16248: 16249: =item 16250: inststatustypes, inststatusorder, inststatusguest 16251: 16252: =back 16253: 16254: =item 16255: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB) 16256: for course's uploaded content. 16257: 16258: =over 16259: 16260: =item 16261: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota, 16262: communityquota, textbookquota, placementquota 16263: 16264: =back 16265: 16266: =item 16267: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains 16268: on your servers. 16269: 16270: =over 16271: 16272: =item 16273: remotesessions, hostedsessions 16274: 16275: =back 16276: 16277: =back 16278: 16279: In cases where a domain coordinator has never used the "Set Domain Configuration" 16280: utility to create a configuration.db file on a domain's primary library server 16281: only the following domain defaults: auth_def, auth_arg_def, lang_def 16282: -- corresponding values are authentication type (internal, krb4, krb5, 16283: or localauth), initial password or a kerberos realm, language (e.g., en-us) -- 16284: will be available. Values are retrieved from cache (if current), unless the 16285: optional $ignore_cache arg is true, or from domain's configuration.db (if available), 16286: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab. 16287: 16288: Typical usage: 16289: 16290: %domdefaults = &get_domain_defaults($target_domain); 16291: 16292: =back 16293: 16294: =head2 Network Status Functions 16295: 16296: =over 4 16297: 16298: =item * 16299: 16300: dirlist() : return directory list based on URI (first arg). 16301: 16302: Inputs: 1 required, 5 optional. 16303: 16304: =over 16305: 16306: =item 16307: $uri - path to file in filesystem (starts: /res or /userfiles/). Required. 16308: 16309: =item 16310: $userdomain - domain of user/course to be listed. Extracted from $uri if absent. 16311: 16312: =item 16313: $username - username of user/course to be listed. Extracted from $uri if absent. 16314: 16315: =item 16316: $getpropath - boolean: 1 if prepend path using &propath(). 16317: 16318: =item 16319: $getuserdir - boolean: 1 if prepend path for "userfiles". 16320: 16321: =item 16322: $alternateRoot - path to prepend in place of path from $uri. 16323: 16324: =back 16325: 16326: Returns: Array of up to two items. 16327: 16328: =over 16329: 16330: a reference to an array of files/subdirectories 16331: 16332: =over 16333: 16334: Each element in the array of files/subdirectories is a & separated list of 16335: item name and the result of running stat on the item. If dirlist was requested 16336: for a file instead of a directory, the item name will be ''. For a directory 16337: listing, if the item is a metadata file, the element will end &N&M 16338: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or 16339: default copyright set (1). 16340: 16341: =back 16342: 16343: a scalar containing error condition (if encountered). 16344: 16345: =over 16346: 16347: =item 16348: no_host (no homeserver identified for $username:$domain). 16349: 16350: =item 16351: no_such_host (server contacted for listing not identified as valid host). 16352: 16353: =item 16354: con_lost (connection to remote server failed). 16355: 16356: =item 16357: refused (invalid $username:$domain received on lond side). 16358: 16359: =item 16360: no_such_dir (directory at specified path on lond side does not exist). 16361: 16362: =item 16363: empty (directory at specified path on lond side is empty). 16364: 16365: =over 16366: 16367: This is currently not encountered because the &ls3, &ls2, 16368: &ls (_handler) routines on the lond side do not filter out 16369: . and .. from a directory listing. 16370: 16371: =back 16372: 16373: =back 16374: 16375: =back 16376: 16377: =item * 16378: 16379: spareserver() : find server with least workload from spare.tab 16380: 16381: 16382: =item * 16383: 16384: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef 16385: if there is no corresponding loncapa host. 16386: 16387: =back 16388: 16389: 16390: =head2 Apache Request 16391: 16392: =over 4 16393: 16394: =item * 16395: 16396: ssi($url,%hash) : server side include, does a complete request cycle on url to 16397: localhost, posts hash 16398: 16399: =back 16400: 16401: =head2 Data to String to Data 16402: 16403: =over 4 16404: 16405: =item * 16406: 16407: hash2str(%hash) : convert a hash into a string complete with escaping and '=' 16408: and '&' separators, supports elements that are arrayrefs and hashrefs 16409: 16410: =item * 16411: 16412: hashref2str($hashref) : convert a hashref into a string complete with 16413: escaping and '=' and '&' separators, supports elements that are 16414: arrayrefs and hashrefs 16415: 16416: =item * 16417: 16418: arrayref2str($arrayref) : convert an arrayref into a string complete 16419: with escaping and '&' separators, supports elements that are arrayrefs 16420: and hashrefs 16421: 16422: =item * 16423: 16424: str2hash($string) : convert string to hash using unescaping and 16425: splitting on '=' and '&', supports elements that are arrayrefs and 16426: hashrefs 16427: 16428: =item * 16429: 16430: str2array($string) : convert string to hash using unescaping and 16431: splitting on '&', supports elements that are arrayrefs and hashrefs 16432: 16433: =back 16434: 16435: =head2 Logging Routines 16436: 16437: 16438: These routines allow one to make log messages in the lonnet.log and 16439: lonnet.perm logfiles. 16440: 16441: =over 4 16442: 16443: =item * 16444: 16445: logtouch() : make sure the logfile, lonnet.log, exists 16446: 16447: =item * 16448: 16449: logthis() : append message to the normal lonnet.log file, it gets 16450: preiodically rolled over and deleted. 16451: 16452: =item * 16453: 16454: logperm() : append a permanent message to lonnet.perm.log, this log 16455: file never gets deleted by any automated portion of the system, only 16456: messages of critical importance should go in here. 16457: 16458: 16459: =back 16460: 16461: =head2 General File Helper Routines 16462: 16463: =over 4 16464: 16465: =item * 16466: 16467: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded. 16468: (a) files in /uploaded 16469: (i) If a local copy of the file exists - 16470: compares modification date of local copy with last-modified date for 16471: definitive version stored on home server for course. If local copy is 16472: stale, requests a new version from the home server and stores it. 16473: If the original has been removed from the home server, then local copy 16474: is unlinked. 16475: (ii) If local copy does not exist - 16476: requests the file from the home server and stores it. 16477: 16478: If $caller is 'uploadrep': 16479: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase) 16480: for request for files originally uploaded via DOCS. 16481: - returns 'ok' if fresh local copy now available, -1 otherwise. 16482: 16483: Otherwise: 16484: This indicates a call from the content generation phase of the request. 16485: - returns the entire contents of the file or -1. 16486: 16487: (b) files in /res 16488: - returns the entire contents of a file or -1; 16489: it properly subscribes to and replicates the file if neccessary. 16490: 16491: 16492: =item * 16493: 16494: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file 16495: reference 16496: 16497: returns either a stat() list of data about the file or an empty list 16498: if the file doesn't exist or couldn't find out about it (connection 16499: problems or user unknown) 16500: 16501: =item * 16502: 16503: filelocation($dir,$file) : returns file system location of a file 16504: based on URI; meant to be "fairly clean" absolute reference, $dir is a 16505: directory that relative $file lookups are to looked in ($dir of /a/dir 16506: and a file of ../bob will become /a/bob) 16507: 16508: =item * 16509: 16510: hreflocation($dir,$file) : returns file system location or a URL; same as 16511: filelocation except for hrefs 16512: 16513: =item * 16514: 16515: declutter() : declutters URLs -- remove beginning slashes, 'res' etc. 16516: also removes beginning /home/httpd/html unless /priv/ follows it. 16517: 16518: =back 16519: 16520: =head2 Usererfile file routines (/uploaded*) 16521: 16522: =over 4 16523: 16524: =item * 16525: 16526: userfileupload(): main rotine for putting a file in a user or course's 16527: filespace, arguments are, 16528: 16529: formname - required - this is the name of the element in $env where the 16530: filename, and the contents of the file to create/modifed exist 16531: the filename is in $env{'form.'.$formname.'.filename'} and the 16532: contents of the file is located in $env{'form.'.$formname} 16533: context - if coursedoc, store the file in the course of the active role 16534: of the current user; 16535: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp 16536: if 'canceloverwrite': delete file in tmp/overwrites directory 16537: subdir - required - subdirectory to put the file in under ../userfiles/ 16538: if undefined, it will be placed in "unknown" 16539: 16540: (This routine calls clean_filename() to remove any dangerous 16541: characters from the filename, and then calls finuserfileupload() to 16542: complete the transaction) 16543: 16544: returns either the url of the uploaded file (/uploaded/....) if successful 16545: and /adm/notfound.html if unsuccessful 16546: 16547: =item * 16548: 16549: clean_filename(): routine for cleaing a filename up for storage in 16550: userfile space, argument is: 16551: 16552: filename - proposed filename 16553: 16554: returns: the new clean filename 16555: 16556: =item * 16557: 16558: finishuserfileupload(): routine that creates and sends the file to 16559: userspace, probably shouldn't be called directly 16560: 16561: docuname: username or courseid of destination for the file 16562: docudom: domain of user/course of destination for the file 16563: formname: same as for userfileupload() 16564: fname: filename (including subdirectories) for the file 16565: parser: if 'parse', will parse (html) file to extract references to objects, links etc. 16566: if hashref, and context is scantron, will convert csv format to standard format 16567: allfiles: reference to hash used to store objects found by parser 16568: codebase: reference to hash used for codebases of java objects found by parser 16569: thumbwidth: width (pixels) of thumbnail to be created for uploaded image 16570: thumbheight: height (pixels) of thumbnail to be created for uploaded image 16571: resizewidth: width to be used to resize image using resizeImage from ImageMagick 16572: resizeheight: height to be used to resize image using resizeImage from ImageMagick 16573: context: if 'overwrite', will move the uploaded file from its temporary location to 16574: userfiles to facilitate overwriting a previously uploaded file with same name. 16575: mimetype: reference to scalar to accommodate mime type determined 16576: from File::MMagic if $parser = parse. 16577: 16578: returns either the url of the uploaded file (/uploaded/....) if successful 16579: and /adm/notfound.html if unsuccessful (or an error message if context 16580: was 'overwrite'). 16581: 16582: 16583: =item * 16584: 16585: renameuserfile(): renames an existing userfile to a new name 16586: 16587: Args: 16588: docuname: username or courseid of destination for the file 16589: docudom: domain of user/course of destination for the file 16590: old: current file name (including any subdirs under userfiles) 16591: new: desired file name (including any subdirs under userfiles) 16592: 16593: =item * 16594: 16595: mkdiruserfile(): creates a directory is a userfiles dir 16596: 16597: Args: 16598: docuname: username or courseid of destination for the file 16599: docudom: domain of user/course of destination for the file 16600: dir: dir to create (including any subdirs under userfiles) 16601: 16602: =item * 16603: 16604: removeuserfile(): removes a file that exists in userfiles 16605: 16606: Args: 16607: docuname: username or courseid of destination for the file 16608: docudom: domain of user/course of destination for the file 16609: fname: filname to delete (including any subdirs under userfiles) 16610: 16611: =item * 16612: 16613: removeuploadedurl(): convience function for removeuserfile() 16614: 16615: Args: 16616: url: a full /uploaded/... url to delete 16617: 16618: =item * 16619: 16620: get_portfile_permissions(): 16621: Args: 16622: domain: domain of user or course contain the portfolio files 16623: user: name of user or num of course contain the portfolio files 16624: Returns: 16625: hashref of a dump of the proper file_permissions.db 16626: 16627: 16628: =item * 16629: 16630: get_access_controls(): 16631: 16632: Args: 16633: current_permissions: the hash ref returned from get_portfile_permissions() 16634: group: (optional) the group you want the files associated with 16635: file: (optional) the file you want access info on 16636: 16637: Returns: 16638: a hash (keys are file names) of hashes containing 16639: keys are: path to file/file_name\0uniqueID:scope_end_start (see below) 16640: values are XML containing access control settings (see below) 16641: 16642: Internal notes: 16643: 16644: access controls are stored in file_permissions.db as key=value pairs. 16645: key -> path to file/file_name\0uniqueID:scope_end_start 16646: where scope -> public,guest,course,group,domains or users. 16647: end -> UNIX time for end of access (0 -> no end date) 16648: start -> UNIX time for start of access 16649: 16650: value -> XML description of access control 16651: <scope type=""> (type =1 of: public,guest,course,group,domains,users"> 16652: <start></start> 16653: <end></end> 16654: 16655: <password></password> for scope type = guest 16656: 16657: <domain></domain> for scope type = course or group 16658: <number></number> 16659: <roles id=""> 16660: <role></role> 16661: <access></access> 16662: <section></section> 16663: <group></group> 16664: </roles> 16665: 16666: <dom></dom> for scope type = domains 16667: 16668: <users> for scope type = users 16669: <user> 16670: <uname></uname> 16671: <udom></udom> 16672: </user> 16673: </users> 16674: </scope> 16675: 16676: Access data is also aggregated for each file in an additional key=value pair: 16677: key -> path to file/file_name\0accesscontrol 16678: value -> reference to hash 16679: hash contains key = value pairs 16680: where key = uniqueID:scope_end_start 16681: value = UNIX time record was last updated 16682: 16683: Used to improve speed of look-ups of access controls for each file. 16684: 16685: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays. 16686: 16687: =item * 16688: 16689: modify_access_controls(): 16690: 16691: Modifies access controls for a portfolio file 16692: Args 16693: 1. file name 16694: 2. reference to hash of required changes, 16695: 3. domain 16696: 4. username 16697: where domain,username are the domain of the portfolio owner 16698: (either a user or a course) 16699: 16700: Returns: 16701: 1. result of additions or updates ('ok' or 'error', with error message). 16702: 2. result of deletions ('ok' or 'error', with error message). 16703: 3. reference to hash of any new or updated access controls. 16704: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control. 16705: key = integer (inbound ID) 16706: value = uniqueID 16707: 16708: =item * 16709: 16710: get_timebased_id(): 16711: 16712: Attempts to get a unique timestamp-based suffix for use with items added to a 16713: course via the Course Editor (e.g., folders, composite pages, 16714: group bulletin boards). 16715: 16716: Args: (first three required; six others optional) 16717: 16718: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage, 16719: docssequence, or name of group 16720: 16721: 2. keyid (alphanumeric): name of temporary locking key in hash, 16722: e.g., num, boardids 16723: 16724: 3. namespace: name of gdbm file used to store suffixes already assigned; 16725: file will be named nohist_namespace.db 16726: 16727: 4. cdom: domain of course; default is current course domain from %env 16728: 16729: 5. cnum: course number; default is current course number from %env 16730: 16731: 6. idtype: set to concat if an additional digit is to be appended to the 16732: unix timestamp to form the suffix, if the plain timestamp is already 16733: in use. Default is to not do this, but simply increment the unix 16734: timestamp by 1 until a unique key is obtained. 16735: 16736: 7. who: holder of locking key; defaults to user:domain for user. 16737: 16738: 8. locktries: number of attempts to obtain a lock (sleep of 1s before 16739: retrying); default is 3. 16740: 16741: 9. maxtries: number of attempts to obtain a unique suffix; default is 20. 16742: 16743: Returns: 16744: 16745: 1. suffix obtained (numeric) 16746: 16747: 2. result of deleting locking key (ok if deleted, or lock never obtained) 16748: 16749: 3. error: contains (localized) error message if an error occurred. 16750: 16751: 16752: =back 16753: 16754: =head2 HTTP Helper Routines 16755: 16756: =over 4 16757: 16758: =item * 16759: 16760: escape() : unpack non-word characters into CGI-compatible hex codes 16761: 16762: =item * 16763: 16764: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character 16765: 16766: =back 16767: 16768: =head1 PRIVATE SUBROUTINES 16769: 16770: =head2 Underlying communication routines (Shouldn't call) 16771: 16772: =over 4 16773: 16774: =item * 16775: 16776: subreply() : tries to pass a message to lonc, returns con_lost if incapable 16777: 16778: =item * 16779: 16780: reply() : uses subreply to send a message to remote machine, logs all failures 16781: 16782: =item * 16783: 16784: critical() : passes a critical message to another server; if cannot 16785: get through then place message in connection buffer directory and 16786: returns con_delayed, if incapable of saving message, returns 16787: con_failed 16788: 16789: =item * 16790: 16791: reconlonc() : tries to reconnect lonc client processes. 16792: 16793: =back 16794: 16795: =head2 Resource Access Logging 16796: 16797: =over 4 16798: 16799: =item * 16800: 16801: flushcourselogs() : flush (save) buffer logs and access logs 16802: 16803: =item * 16804: 16805: courselog($what) : save message for course in hash 16806: 16807: =item * 16808: 16809: courseacclog($what) : save message for course using &courselog(). Perform 16810: special processing for specific resource types (problems, exams, quizzes, etc). 16811: 16812: =item * 16813: 16814: goodbye() : flush course logs and log shutting down; it is called in srm.conf 16815: as a PerlChildExitHandler 16816: 16817: =back 16818: 16819: =head2 Other 16820: 16821: =over 4 16822: 16823: =item * 16824: 16825: symblist($mapname,%newhash) : update symbolic storage links 16826: 16827: =back 16828: 16829: =cut 16830: