Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1172.2.114
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1172.2.114! raeburn 4: # $Id: lonnet.pm,v 1.1172.2.113 2019/08/22 00:16:39 raeburn Exp $
1.178 www 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: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 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:
1.971 jms 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:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
1.1172.2.107 raeburn 77: use CGI::Cookie;
1.977 amueller 78:
1.1172.2.104 raeburn 79: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex
1.1138 raeburn 80: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
1.1172.2.114! raeburn 81: %managerstab $passwdmin);
1.871 albertel 82:
83: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
84: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
85: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 86: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 87:
1.1 albertel 88: use IO::Socket;
1.31 www 89: use GDBM_File;
1.208 albertel 90: use HTML::LCParser;
1.88 www 91: use Fcntl qw(:flock);
1.870 albertel 92: use Storable qw(thaw nfreeze);
1.1172.2.79 raeburn 93: use Time::HiRes qw( sleep gettimeofday tv_interval );
1.599 albertel 94: use Cache::Memcached;
1.676 albertel 95: use Digest::MD5;
1.790 albertel 96: use Math::Random;
1.1024 raeburn 97: use File::MMagic;
1.807 albertel 98: use LONCAPA qw(:DEFAULT :match);
1.740 www 99: use LONCAPA::Configuration;
1.1160 www 100: use LONCAPA::lonmetadata;
1.1172.2.22 raeburn 101: use LONCAPA::Lond;
1.1172.2.110 raeburn 102: use LONCAPA::transliterate;
1.1117 foxr 103:
1.1090 raeburn 104: use File::Copy;
1.676 albertel 105:
1.195 www 106: my $readit;
1.1172.2.79 raeburn 107: my $max_connection_retries = 20; # Or some such value.
1.1 albertel 108:
1.619 albertel 109: require Exporter;
110:
111: our @ISA = qw (Exporter);
112: our @EXPORT = qw(%env);
113:
1.1172.2.9 raeburn 114: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 115: {
116: my $logid;
1.1172.2.9 raeburn 117: sub write_log {
118: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
119: if ($context eq 'course') {
120: if (($cnum eq '') || ($cdom eq '')) {
121: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
122: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
123: }
1.957 raeburn 124: }
1.1172.2.13 raeburn 125: $logid ++;
1.957 raeburn 126: my $now = time();
127: my $id=$now.'00000'.$$.'00000'.$logid;
1.1172.2.9 raeburn 128: my $logentry = {
129: $id => {
130: 'exe_uname' => $env{'user.name'},
131: 'exe_udom' => $env{'user.domain'},
132: 'exe_time' => $now,
133: 'exe_ip' => $ENV{'REMOTE_ADDR'},
134: 'delflag' => $delflag,
135: 'logentry' => $storehash,
136: 'uname' => $uname,
137: 'udom' => $udom,
138: }
139: };
140: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 141: }
142: }
1.1 albertel 143:
1.163 harris41 144: sub logtouch {
145: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 146: unless (-e "$execdir/logs/lonnet.log") {
1.1172.2.96 raeburn 147: open(my $fh,">>","$execdir/logs/lonnet.log");
1.163 harris41 148: close $fh;
149: }
150: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
151: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
152: }
153:
1.1 albertel 154: sub logthis {
155: my $message=shift;
156: my $execdir=$perlvar{'lonDaemons'};
157: my $now=time;
158: my $local=localtime($now);
1.1172.2.96 raeburn 159: if (open(my $fh,">>","$execdir/logs/lonnet.log")) {
1.986 foxr 160: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
161: print $fh $logstring;
1.448 albertel 162: close($fh);
163: }
1.1 albertel 164: return 1;
165: }
166:
167: sub logperm {
168: my $message=shift;
169: my $execdir=$perlvar{'lonDaemons'};
170: my $now=time;
171: my $local=localtime($now);
1.1172.2.96 raeburn 172: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {
1.448 albertel 173: print $fh "$now:$message:$local\n";
174: close($fh);
175: }
1.1 albertel 176: return 1;
177: }
178:
1.850 albertel 179: sub create_connection {
1.853 albertel 180: my ($hostname,$lonid) = @_;
1.851 albertel 181: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 182: Type => SOCK_STREAM,
183: Timeout => 10);
184: return 0 if (!$client);
1.890 albertel 185: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 186: my $result = <$client>;
187: chomp($result);
188: return 1 if ($result eq 'done');
189: return 0;
190: }
191:
1.983 raeburn 192: sub get_server_timezone {
193: my ($cnum,$cdom) = @_;
194: my $home=&homeserver($cnum,$cdom);
195: if ($home ne 'no_host') {
196: my $cachetime = 24*3600;
197: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
198: if (defined($cached)) {
199: return $timezone;
200: } else {
201: my $timezone = &reply('servertimezone',$home);
202: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
203: }
204: }
205: }
1.850 albertel 206:
1.1106 raeburn 207: sub get_server_distarch {
208: my ($lonhost,$ignore_cache) = @_;
209: if (defined($lonhost)) {
210: if (!defined(&hostname($lonhost))) {
211: return;
212: }
213: my $cachetime = 12*3600;
214: if (!$ignore_cache) {
215: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
216: if (defined($cached)) {
217: return $distarch;
218: }
219: }
220: my $rep = &reply('serverdistarch',$lonhost);
221: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
222: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
223: $rep eq '') {
224: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
225: }
226: }
227: return;
228: }
229:
1.993 raeburn 230: sub get_server_loncaparev {
1.1073 raeburn 231: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 232: if (defined($lonhost)) {
233: if (!defined(&hostname($lonhost))) {
234: undef($lonhost);
235: }
236: }
237: if (!defined($lonhost)) {
238: if (defined(&domain($dom,'primary'))) {
239: $lonhost=&domain($dom,'primary');
240: if ($lonhost eq 'no_host') {
241: undef($lonhost);
242: }
243: }
244: }
245: if (defined($lonhost)) {
1.1073 raeburn 246: my $cachetime = 12*3600;
247: if (!$ignore_cache) {
248: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
249: if (defined($cached)) {
250: return $loncaparev;
251: }
252: }
253: my ($answer,$loncaparev);
254: my @ids=¤t_machine_ids();
255: if (grep(/^\Q$lonhost\E$/,@ids)) {
256: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 257: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 258: $loncaparev = $1;
259: }
260: } else {
261: $answer = &reply('serverloncaparev',$lonhost);
262: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
263: if ($caller eq 'loncron') {
264: my $ua=new LWP::UserAgent;
1.1082 raeburn 265: $ua->timeout(4);
1.1073 raeburn 266: my $protocol = $protocol{$lonhost};
267: $protocol = 'http' if ($protocol ne 'https');
268: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
269: my $request=new HTTP::Request('GET',$url);
270: my $response=$ua->request($request);
271: unless ($response->is_error()) {
272: my $content = $response->content;
1.1081 raeburn 273: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 274: $loncaparev = $1;
275: }
276: }
277: } else {
278: $loncaparev = $loncaparevs{$lonhost};
279: }
1.1081 raeburn 280: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 281: $loncaparev = $1;
282: }
1.993 raeburn 283: }
1.1073 raeburn 284: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 285: }
286: }
287:
1.1074 raeburn 288: sub get_server_homeID {
289: my ($hostname,$ignore_cache,$caller) = @_;
290: unless ($ignore_cache) {
291: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
292: if (defined($cached)) {
293: return $serverhomeID;
294: }
295: }
296: my $cachetime = 12*3600;
297: my $serverhomeID;
298: if ($caller eq 'loncron') {
299: my @machine_ids = &machine_ids($hostname);
300: foreach my $id (@machine_ids) {
301: my $response = &reply('serverhomeID',$id);
302: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
303: $serverhomeID = $response;
304: last;
305: }
306: }
307: if ($serverhomeID eq '') {
308: $serverhomeID = $machine_ids[-1];
309: }
310: } else {
311: $serverhomeID = $serverhomeIDs{$hostname};
312: }
313: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
314: }
315:
1.1121 raeburn 316: sub get_remote_globals {
317: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 318: my ($result,%returnhash,%whatneeded);
319: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 320: foreach my $what (sort(keys(%{$whathash}))) {
321: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 322: my ($response,$cached);
1.1121 raeburn 323: unless ($ignore_cache) {
1.1125 raeburn 324: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 325: }
326: if (defined($cached)) {
1.1125 raeburn 327: $returnhash{$what} = $response;
1.1121 raeburn 328: } else {
1.1125 raeburn 329: $whatneeded{$what} = 1;
1.1121 raeburn 330: }
331: }
1.1125 raeburn 332: if (keys(%whatneeded) == 0) {
333: $result = 'ok';
334: } else {
1.1121 raeburn 335: my $requested = &freeze_escape(\%whatneeded);
336: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 337: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
338: ($rep eq 'unknown_cmd')) {
339: $result = $rep;
340: } else {
341: $result = 'ok';
1.1121 raeburn 342: my @pairs=split(/\&/,$rep);
1.1125 raeburn 343: foreach my $item (@pairs) {
344: my ($key,$value)=split(/=/,$item,2);
345: my $what = &unescape($key);
346: my $hashid = $lonhost.'-'.$what;
347: $returnhash{$what}=&thaw_unescape($value);
348: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 349: }
350: }
351: }
352: }
1.1125 raeburn 353: return ($result,\%returnhash);
1.1121 raeburn 354: }
355:
1.1124 raeburn 356: sub remote_devalidate_cache {
1.1172.2.35 raeburn 357: my ($lonhost,$cachekeys) = @_;
358: my $items;
359: return unless (ref($cachekeys) eq 'ARRAY');
360: my $cachestr = join('&',@{$cachekeys});
361: return &reply('devalidatecache:'.&escape($cachestr),$lonhost);
1.1124 raeburn 362: }
363:
1.1 albertel 364: # -------------------------------------------------- Non-critical communication
365: sub subreply {
366: my ($cmd,$server)=@_;
1.838 albertel 367: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 368: #
369: # With loncnew process trimming, there's a timing hole between lonc server
370: # process exit and the master server picking up the listen on the AF_UNIX
371: # socket. In that time interval, a lock file will exist:
372:
373: my $lockfile=$peerfile.".lock";
374: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
1.1172.2.79 raeburn 375: sleep(0.1);
1.549 foxr 376: }
377: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 378: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 379: #
1.550 foxr 380: # We'll give the connection a few tries before abandoning it. If
381: # connection is not possible, we'll con_lost back to the client.
382: #
383: my $client;
384: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
385: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
386: Type => SOCK_STREAM,
387: Timeout => 10);
1.869 albertel 388: if ($client) {
1.550 foxr 389: last; # Connected!
1.850 albertel 390: } else {
1.853 albertel 391: &create_connection(&hostname($server),$server);
1.550 foxr 392: }
1.1172.2.79 raeburn 393: sleep(0.1); # Try again later if failed connection.
1.550 foxr 394: }
395: my $answer;
396: if ($client) {
1.704 albertel 397: print $client "sethost:$server:$cmd\n";
1.550 foxr 398: $answer=<$client>;
399: if (!$answer) { $answer="con_lost"; }
400: chomp($answer);
401: } else {
402: $answer = 'con_lost'; # Failed connection.
403: }
1.1 albertel 404: return $answer;
405: }
406:
407: sub reply {
408: my ($cmd,$server)=@_;
1.838 albertel 409: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 410: my $answer=subreply($cmd,$server);
1.65 www 411: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.1172.2.111 raeburn 412: my $logged = $cmd;
413: if ($cmd =~ /^encrypt:([^:]+):/) {
414: my $subcmd = $1;
415: if (($subcmd eq 'auth') || ($subcmd eq 'passwd') ||
416: ($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') ||
417: ($subcmd eq 'putdom') || ($subcmd eq 'autoexportgrades')) {
418: (undef,undef,my @rest) = split(/:/,$cmd);
419: if (($subcmd eq 'auth') || ($subcmd eq 'putdom')) {
420: splice(@rest,2,1,'Hidden');
421: } elsif ($subcmd eq 'passwd') {
422: splice(@rest,2,2,('Hidden','Hidden'));
423: } elsif (($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') ||
424: ($subcmd eq 'autoexportgrades')) {
425: splice(@rest,3,1,'Hidden');
426: }
427: $logged = join(':',('encrypt:'.$subcmd,@rest));
428: }
429: }
430: &logthis("<font color=\"blue\">WARNING:".
431: " $logged to $server returned $answer</font>");
1.12 www 432: }
1.1 albertel 433: return $answer;
434: }
435:
436: # ----------------------------------------------------------- Send USR1 to lonc
437:
438: sub reconlonc {
1.891 albertel 439: my ($lonid) = @_;
440: if ($lonid) {
1.1172.2.72 raeburn 441: my $hostname = &hostname($lonid);
1.891 albertel 442: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
443: if ($hostname && -e $peerfile) {
444: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
445: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
446: Type => SOCK_STREAM,
447: Timeout => 10);
448: if ($client) {
449: print $client ("reset_retries\n");
450: my $answer=<$client>;
451: #reset just this one.
452: }
453: }
454: return;
455: }
456:
1.836 www 457: &logthis("Trying to reconnect lonc");
1.1 albertel 458: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.1172.2.96 raeburn 459: if (open(my $fh,"<",$loncfile)) {
1.1 albertel 460: my $loncpid=<$fh>;
461: chomp($loncpid);
462: if (kill 0 => $loncpid) {
463: &logthis("lonc at pid $loncpid responding, sending USR1");
464: kill USR1 => $loncpid;
465: sleep 1;
1.836 www 466: } else {
1.12 www 467: &logthis(
1.672 albertel 468: "<font color=\"blue\">WARNING:".
1.12 www 469: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 470: }
471: } else {
1.836 www 472: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 473: }
474: }
475:
476: # ------------------------------------------------------ Critical communication
1.12 www 477:
1.1 albertel 478: sub critical {
479: my ($cmd,$server)=@_;
1.838 albertel 480: unless (&hostname($server)) {
1.672 albertel 481: &logthis("<font color=\"blue\">WARNING:".
1.89 www 482: " Critical message to unknown server ($server)</font>");
483: return 'no_such_host';
484: }
1.1 albertel 485: my $answer=reply($cmd,$server);
486: if ($answer eq 'con_lost') {
1.1172.2.72 raeburn 487: &reconlonc($server);
1.589 albertel 488: my $answer=reply($cmd,$server);
1.1 albertel 489: if ($answer eq 'con_lost') {
490: my $now=time;
491: my $middlename=$cmd;
1.5 www 492: $middlename=substr($middlename,0,16);
1.1 albertel 493: $middlename=~s/\W//g;
494: my $dfilename=
1.305 www 495: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
496: $dumpcount++;
1.1 albertel 497: {
1.448 albertel 498: my $dfh;
1.1172.2.96 raeburn 499: if (open($dfh,">",$dfilename)) {
1.448 albertel 500: print $dfh "$cmd\n";
501: close($dfh);
502: }
1.1 albertel 503: }
1.1172.2.79 raeburn 504: sleep 1;
1.1 albertel 505: my $wcmd='';
506: {
1.448 albertel 507: my $dfh;
1.1172.2.96 raeburn 508: if (open($dfh,"<",$dfilename)) {
1.448 albertel 509: $wcmd=<$dfh>;
510: close($dfh);
511: }
1.1 albertel 512: }
513: chomp($wcmd);
1.7 www 514: if ($wcmd eq $cmd) {
1.672 albertel 515: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 516: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 517: &logperm("D:$server:$cmd");
518: return 'con_delayed';
519: } else {
1.672 albertel 520: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 521: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 522: &logperm("F:$server:$cmd");
523: return 'con_failed';
524: }
525: }
526: }
527: return $answer;
1.405 albertel 528: }
529:
1.755 albertel 530: # ------------------------------------------- check if return value is an error
531:
532: sub error {
533: my ($result) = @_;
1.756 albertel 534: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 535: if ($2 == 2) { return undef; }
536: return $1;
537: }
538: return undef;
539: }
540:
1.783 albertel 541: sub convert_and_load_session_env {
542: my ($lonidsdir,$handle)=@_;
543: my @profile;
544: {
1.917 albertel 545: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
546: if (!$opened) {
1.915 albertel 547: return 0;
548: }
1.783 albertel 549: flock($idf,LOCK_SH);
550: @profile=<$idf>;
551: close($idf);
552: }
553: my %temp_env;
554: foreach my $line (@profile) {
1.786 albertel 555: if ($line !~ m/=/) {
556: return 0;
557: }
1.783 albertel 558: chomp($line);
559: my ($envname,$envvalue)=split(/=/,$line,2);
560: $temp_env{&unescape($envname)} = &unescape($envvalue);
561: }
562: unlink("$lonidsdir/$handle.id");
563: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
564: 0640)) {
565: %disk_env = %temp_env;
566: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
567: untie(%disk_env);
568: }
1.786 albertel 569: return 1;
1.783 albertel 570: }
571:
1.374 www 572: # ------------------------------------------- Transfer profile into environment
1.780 albertel 573: my $env_loaded;
574: sub transfer_profile_to_env {
1.788 albertel 575: my ($lonidsdir,$handle,$force_transfer) = @_;
576: if (!$force_transfer && $env_loaded) { return; }
1.374 www 577:
1.720 albertel 578: if (!defined($lonidsdir)) {
579: $lonidsdir = $perlvar{'lonIDsDir'};
580: }
581: if (!defined($handle)) {
582: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
583: }
584:
1.786 albertel 585: my $convert;
586: {
1.917 albertel 587: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
588: if (!$opened) {
1.915 albertel 589: return;
590: }
1.786 albertel 591: flock($idf,LOCK_SH);
592: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
593: &GDBM_READER(),0640)) {
594: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
595: untie(%disk_env);
596: } else {
597: $convert = 1;
598: }
599: }
600: if ($convert) {
601: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
602: &logthis("Failed to load session, or convert session.");
603: }
1.374 www 604: }
1.783 albertel 605:
1.786 albertel 606: my %remove;
1.783 albertel 607: while ( my $envname = each(%env) ) {
1.433 matthew 608: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
609: if ($time < time-300) {
1.783 albertel 610: $remove{$key}++;
1.433 matthew 611: }
612: }
613: }
1.783 albertel 614:
1.619 albertel 615: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 616: $env_loaded=1;
1.783 albertel 617: foreach my $expired_key (keys(%remove)) {
1.433 matthew 618: &delenv($expired_key);
1.374 www 619: }
1.1 albertel 620: }
621:
1.916 albertel 622: # ---------------------------------------------------- Check for valid session
623: sub check_for_valid_session {
1.1172.2.96 raeburn 624: my ($r,$name,$userhashref,$domref) = @_;
1.916 albertel 625: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1172.2.108 raeburn 626: my ($lonidsdir,$linkname,$pubname,$secure,$lonid);
1.1155 raeburn 627: if ($name eq 'lonDAV') {
628: $lonidsdir=$r->dir_config('lonDAVsessDir');
629: } else {
630: $lonidsdir=$r->dir_config('lonIDsDir');
1.1172.2.108 raeburn 631: if ($name eq '') {
632: $name = 'lonID';
633: }
634: }
635: if ($name eq 'lonID') {
636: $secure = 'lonSID';
637: $linkname = 'lonLinkID';
638: $pubname = 'lonPubID';
639: if (exists($cookies{$secure})) {
640: $lonid=$cookies{$secure};
641: } elsif (exists($cookies{$name})) {
642: $lonid=$cookies{$name};
643: } elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) {
644: $lonid=$cookies{$linkname};
645: } elsif (exists($cookies{$pubname})) {
646: $lonid=$cookies{$pubname};
647: }
648: } else {
649: $lonid=$cookies{$name};
650: }
651: return undef if (!$lonid);
652:
653: my $handle=&LONCAPA::clean_handle($lonid->value);
654: if (-l "$lonidsdir/$handle.id") {
655: my $link = readlink("$lonidsdir/$handle.id");
656: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
657: $handle = $1;
658: }
1.1155 raeburn 659: }
1.1172.2.96 raeburn 660: if (!-e "$lonidsdir/$handle.id") {
661: if ((ref($domref)) && ($name eq 'lonID') &&
662: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
663: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
664: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
665: $$domref = $possudom;
666: }
667: }
668: return undef;
669: }
1.916 albertel 670:
1.917 albertel 671: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
672: return undef if (!$opened);
1.916 albertel 673:
674: flock($idf,LOCK_SH);
675: my %disk_env;
676: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
677: &GDBM_READER(),0640)) {
678: return undef;
679: }
680:
681: if (!defined($disk_env{'user.name'})
682: || !defined($disk_env{'user.domain'})) {
1.1172.2.107 raeburn 683: untie(%disk_env);
1.916 albertel 684: return undef;
685: }
1.1172.2.18 raeburn 686:
1.1172.2.36 raeburn 687: if (ref($userhashref) eq 'HASH') {
688: $userhashref->{'name'} = $disk_env{'user.name'};
689: $userhashref->{'domain'} = $disk_env{'user.domain'};
1.1172.2.18 raeburn 690: }
1.1172.2.107 raeburn 691: untie(%disk_env);
1.1172.2.18 raeburn 692:
1.916 albertel 693: return $handle;
694: }
695:
1.830 albertel 696: sub timed_flock {
697: my ($file,$lock_type) = @_;
698: my $failed=0;
699: eval {
700: local $SIG{__DIE__}='DEFAULT';
701: local $SIG{ALRM}=sub {
702: $failed=1;
703: die("failed lock");
704: };
705: alarm(13);
706: flock($file,$lock_type);
707: alarm(0);
708: };
709: if ($failed) {
710: return undef;
711: } else {
712: return 1;
713: }
714: }
715:
1.1172.2.107 raeburn 716: sub get_sessionfile_vars {
717: my ($handle,$lonidsdir,$storearr) = @_;
718: my %returnhash;
719: unless (ref($storearr) eq 'ARRAY') {
720: return %returnhash;
721: }
722: if (-l "$lonidsdir/$handle.id") {
723: my $link = readlink("$lonidsdir/$handle.id");
724: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
725: $handle = $1;
726: }
727: }
728: if ((-e "$lonidsdir/$handle.id") &&
729: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
730: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
731: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
732: if (open(my $idf,'+<',"$lonidsdir/$handle.id")) {
733: flock($idf,LOCK_SH);
734: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
735: &GDBM_READER(),0640)) {
736: foreach my $item (@{$storearr}) {
737: $returnhash{$item} = $disk_env{$item};
738: }
739: untie(%disk_env);
740: }
741: }
742: }
743: }
744: return %returnhash;
745: }
746:
1.5 www 747: # ---------------------------------------------------------- Append Environment
748:
749: sub appenv {
1.949 raeburn 750: my ($newenv,$roles) = @_;
751: if (ref($newenv) eq 'HASH') {
752: foreach my $key (keys(%{$newenv})) {
753: my $refused = 0;
754: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
755: $refused = 1;
756: if (ref($roles) eq 'ARRAY') {
1.1172.2.40 raeburn 757: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./});
1.949 raeburn 758: if (grep(/^\Q$role\E$/,@{$roles})) {
759: $refused = 0;
760: }
761: }
762: }
763: if ($refused) {
764: &logthis("<font color=\"blue\">WARNING: ".
765: "Attempt to modify environment ".$key." to ".$newenv->{$key}
766: .'</font>');
767: delete($newenv->{$key});
768: } else {
769: $env{$key}=$newenv->{$key};
770: }
771: }
1.1172.2.96 raeburn 772: my $lonids = $perlvar{'lonIDsDir'};
773: if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) {
774: my $opened = open(my $env_file,'+<',$env{'user.environment'});
775: if ($opened
776: && &timed_flock($env_file,LOCK_EX)
777: &&
778: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
779: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
780: while (my ($key,$value) = each(%{$newenv})) {
781: $disk_env{$key} = $value;
782: }
783: untie(%disk_env);
784: }
1.35 www 785: }
1.191 harris41 786: }
1.56 www 787: return 'ok';
788: }
789: # ----------------------------------------------------- Delete from Environment
790:
791: sub delenv {
1.1104 raeburn 792: my ($delthis,$regexp,$roles) = @_;
793: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
794: my $refused = 1;
795: if (ref($roles) eq 'ARRAY') {
796: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
797: if (grep(/^\Q$role\E$/,@{$roles})) {
798: $refused = 0;
799: }
800: }
801: if ($refused) {
802: &logthis("<font color=\"blue\">WARNING: ".
803: "Attempt to delete from environment ".$delthis);
804: return 'error';
805: }
1.56 www 806: }
1.917 albertel 807: my $opened = open(my $env_file,'+<',$env{'user.environment'});
808: if ($opened
1.915 albertel 809: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 810: &&
811: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
812: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 813: foreach my $key (keys(%disk_env)) {
1.987 raeburn 814: if ($regexp) {
815: if ($key=~/^$delthis/) {
816: delete($env{$key});
817: delete($disk_env{$key});
818: }
819: } else {
820: if ($key=~/^\Q$delthis\E/) {
821: delete($env{$key});
822: delete($disk_env{$key});
823: }
824: }
1.448 albertel 825: }
1.783 albertel 826: untie(%disk_env);
1.5 www 827: }
828: return 'ok';
1.369 albertel 829: }
830:
1.790 albertel 831: sub get_env_multiple {
832: my ($name) = @_;
833: my @values;
834: if (defined($env{$name})) {
835: # exists is it an array
836: if (ref($env{$name})) {
837: @values=@{ $env{$name} };
838: } else {
839: $values[0]=$env{$name};
840: }
841: }
842: return(@values);
843: }
844:
1.958 www 845: # ------------------------------------------------------------------- Locking
846:
847: sub set_lock {
848: my ($text)=@_;
849: $locknum++;
850: my $id=$$.'-'.$locknum;
851: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
852: 'session.lock.'.$id => $text});
853: return $id;
854: }
855:
856: sub get_locks {
857: my $num=0;
858: my %texts=();
859: foreach my $lock (split(/\,/,$env{'session.locks'})) {
860: if ($lock=~/\w/) {
861: $num++;
862: $texts{$lock}=$env{'session.lock.'.$lock};
863: }
864: }
865: return ($num,%texts);
866: }
867:
868: sub remove_lock {
869: my ($id)=@_;
870: my $newlocks='';
871: foreach my $lock (split(/\,/,$env{'session.locks'})) {
872: if (($lock=~/\w/) && ($lock ne $id)) {
873: $newlocks.=','.$lock;
874: }
875: }
876: &appenv({'session.locks' => $newlocks});
877: &delenv('session.lock.'.$id);
878: }
879:
880: sub remove_all_locks {
881: my $activelocks=$env{'session.locks'};
882: foreach my $lock (split(/\,/,$env{'session.locks'})) {
883: if ($lock=~/\w/) {
884: &remove_lock($lock);
885: }
886: }
887: }
888:
889:
1.369 albertel 890: # ------------------------------------------ Find out current server userload
891: sub userload {
892: my $numusers=0;
893: {
894: opendir(LONIDS,$perlvar{'lonIDsDir'});
895: my $filename;
896: my $curtime=time;
897: while ($filename=readdir(LONIDS)) {
1.925 albertel 898: next if ($filename eq '.' || $filename eq '..');
899: next if ($filename =~ /publicuser_\d+\.id/);
1.1172.2.112 raeburn 900: next if ($filename =~ /^[a-f0-9]+_linked\.id$/);
1.404 albertel 901: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 902: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 903: }
904: closedir(LONIDS);
905: }
906: my $userloadpercent=0;
907: my $maxuserload=$perlvar{'lonUserLoadLim'};
908: if ($maxuserload) {
1.371 albertel 909: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 910: }
1.372 albertel 911: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 912: return $userloadpercent;
1.283 www 913: }
914:
1.1 albertel 915: # ------------------------------ Find server with least workload from spare.tab
1.11 www 916:
1.1 albertel 917: sub spareserver {
1.1083 raeburn 918: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 919: my $spare_server;
1.370 albertel 920: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 921: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
922: : $userloadpercent;
1.1083 raeburn 923: my ($uint_dom,$remotesessions);
924: if (($udom ne '') && (&domain($udom) ne '')) {
925: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
926: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
927: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
928: $remotesessions = $udomdefaults{'remotesessions'};
929: }
1.1123 raeburn 930: my $spareshash = &this_host_spares($udom);
931: if (ref($spareshash) eq 'HASH') {
932: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
933: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1.1172.2.62 raeburn 934: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
935: $try_server));
1.1123 raeburn 936: ($spare_server, $lowest_load) =
937: &compare_server_load($try_server, $spare_server, $lowest_load);
938: }
1.1083 raeburn 939: }
1.784 albertel 940:
1.1123 raeburn 941: my $found_server = ($spare_server ne '' && $lowest_load < 100);
942:
943: if (!$found_server) {
944: if (ref($spareshash->{'default'}) eq 'ARRAY') {
945: foreach my $try_server (@{ $spareshash->{'default'} }) {
1.1172.2.62 raeburn 946: next unless (&spare_can_host($udom,$uint_dom,
947: $remotesessions,$try_server));
1.1123 raeburn 948: ($spare_server, $lowest_load) =
949: &compare_server_load($try_server, $spare_server, $lowest_load);
950: }
951: }
952: }
1.784 albertel 953: }
954:
955: if (!$want_server_name) {
1.968 raeburn 956: my $protocol = 'http';
957: if ($protocol{$spare_server} eq 'https') {
958: $protocol = $protocol{$spare_server};
959: }
1.1001 raeburn 960: if (defined($spare_server)) {
961: my $hostname = &hostname($spare_server);
1.1083 raeburn 962: if (defined($hostname)) {
1.1001 raeburn 963: $spare_server = $protocol.'://'.$hostname;
964: }
965: }
1.784 albertel 966: }
967: return $spare_server;
968: }
969:
970: sub compare_server_load {
1.1172.2.41 raeburn 971: my ($try_server, $spare_server, $lowest_load, $required) = @_;
972:
973: if ($required) {
974: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
975: my $remoterev = &get_server_loncaparev(undef,$try_server);
976: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
977: if (($major eq '' && $minor eq '') ||
978: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
979: return ($spare_server,$lowest_load);
980: }
981: }
1.784 albertel 982:
983: my $loadans = &reply('load', $try_server);
984: my $userloadans = &reply('userload',$try_server);
985:
986: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 987: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 988: }
989:
990: my $load;
991: if ($loadans =~ /\d/) {
992: if ($userloadans =~ /\d/) {
993: #both are numbers, pick the bigger one
994: $load = ($loadans > $userloadans) ? $loadans
995: : $userloadans;
1.411 albertel 996: } else {
1.784 albertel 997: $load = $loadans;
1.411 albertel 998: }
1.784 albertel 999: } else {
1000: $load = $userloadans;
1001: }
1002:
1003: if (($load =~ /\d/) && ($load < $lowest_load)) {
1004: $spare_server = $try_server;
1005: $lowest_load = $load;
1.370 albertel 1006: }
1.784 albertel 1007: return ($spare_server,$lowest_load);
1.202 matthew 1008: }
1.914 albertel 1009:
1010: # --------------------------- ask offload servers if user already has a session
1011: sub find_existing_session {
1012: my ($udom,$uname) = @_;
1.1123 raeburn 1013: my $spareshash = &this_host_spares($udom);
1014: if (ref($spareshash) eq 'HASH') {
1015: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
1016: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1017: return $try_server if (&has_user_session($try_server, $udom, $uname));
1018: }
1019: }
1020: if (ref($spareshash->{'default'}) eq 'ARRAY') {
1021: foreach my $try_server (@{ $spareshash->{'default'} }) {
1022: return $try_server if (&has_user_session($try_server, $udom, $uname));
1023: }
1024: }
1.914 albertel 1025: }
1026: return;
1027: }
1028:
1.1172.2.107 raeburn 1029: # check if user's browser sent load balancer cookie and server still has session
1030: # and is not overloaded.
1031: sub check_for_balancer_cookie {
1032: my ($r,$update_mtime) = @_;
1033: my ($otherserver,$cookie);
1034: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1035: if (exists($cookies{'balanceID'})) {
1036: my $balid = $cookies{'balanceID'};
1037: $cookie=&LONCAPA::clean_handle($balid->value);
1038: my $balancedir=$r->dir_config('lonBalanceDir');
1039: if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) {
1040: if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) {
1041: my ($possudom,$possuname) = ($1,$2);
1042: my $has_session = 0;
1043: if ((&domain($possudom) ne '') &&
1044: (&homeserver($possuname,$possudom) ne 'no_host')) {
1045: my $try_server;
1046: my $opened = open(my $idf,'+<',"$balancedir/$cookie.id");
1047: if ($opened) {
1048: flock($idf,LOCK_SH);
1049: while (my $line = <$idf>) {
1050: chomp($line);
1051: if (&hostname($line) ne '') {
1052: $try_server = $line;
1053: last;
1054: }
1055: }
1056: close($idf);
1057: if (($try_server) &&
1058: (&has_user_session($try_server,$possudom,$possuname))) {
1059: my $lowest_load = 30000;
1060: ($otherserver,$lowest_load) =
1061: &compare_server_load($try_server,undef,$lowest_load);
1062: if ($otherserver ne '' && $lowest_load < 100) {
1063: $has_session = 1;
1064: } else {
1065: undef($otherserver);
1066: }
1067: }
1068: }
1069: }
1070: if ($has_session) {
1071: if ($update_mtime) {
1072: my $atime = my $mtime = time;
1073: utime($atime,$mtime,"$balancedir/$cookie.id");
1074: }
1075: } else {
1076: unlink("$balancedir/$cookie.id");
1077: }
1078: }
1079: }
1080: }
1081: return ($otherserver,$cookie);
1082: }
1083:
1084: sub delbalcookie {
1085: my ($cookie,$balancer) =@_;
1086: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
1087: my ($udom,$uname) = ($1,$2);
1088: my $uprimary_id = &domain($udom,'primary');
1089: my $uintdom = &internet_dom($uprimary_id);
1090: my $intdom = &internet_dom($balancer);
1091: my $serverhomedom = &host_domain($balancer);
1092: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1093: return &reply("delbalcookie:$cookie",$balancer);
1094: }
1095: }
1096: }
1097:
1.914 albertel 1098: # -------------------------------- ask if server already has a session for user
1099: sub has_user_session {
1100: my ($lonid,$udom,$uname) = @_;
1101: my $result = &reply(join(':','userhassession',
1102: map {&escape($_)} ($udom,$uname)),$lonid);
1103: return 1 if ($result eq 'ok');
1104:
1105: return 0;
1106: }
1107:
1.1076 raeburn 1108: # --------- determine least loaded server in a user's domain which allows login
1109:
1110: sub choose_server {
1.1172.2.47 raeburn 1111: my ($udom,$checkloginvia,$required,$skiploadbal) = @_;
1.1076 raeburn 1112: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 1113: my %servers = &get_servers($udom);
1.1076 raeburn 1114: my $lowest_load = 30000;
1.1172.2.47 raeburn 1115: my ($login_host,$hostname,$portal_path,$isredirect,$balancers);
1116: if ($skiploadbal) {
1117: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
1118: unless (defined($cached)) {
1119: my $cachetime = 60*60*24;
1120: my %domconfig =
1121: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1122: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1123: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
1124: $cachetime);
1125: }
1126: }
1127: }
1.1076 raeburn 1128: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 1129: my $loginvia;
1.1172.2.47 raeburn 1130: if ($skiploadbal) {
1131: if (ref($balancers) eq 'HASH') {
1132: next if (exists($balancers->{$lonhost}));
1133: }
1134: }
1.1115 raeburn 1135: if ($checkloginvia) {
1136: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 1137: if ($loginvia) {
1138: my ($server,$path) = split(/:/,$loginvia);
1139: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 1140: &compare_server_load($server, $login_host, $lowest_load, $required);
1.1116 raeburn 1141: if ($login_host eq $server) {
1142: $portal_path = $path;
1.1151 raeburn 1143: $isredirect = 1;
1.1116 raeburn 1144: }
1145: } else {
1146: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 1147: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1116 raeburn 1148: if ($login_host eq $lonhost) {
1149: $portal_path = '';
1.1151 raeburn 1150: $isredirect = '';
1.1116 raeburn 1151: }
1152: }
1153: } else {
1.1076 raeburn 1154: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 1155: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1076 raeburn 1156: }
1157: }
1158: if ($login_host ne '') {
1.1116 raeburn 1159: $hostname = &hostname($login_host);
1.1076 raeburn 1160: }
1.1172.2.88 raeburn 1161: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);
1.1076 raeburn 1162: }
1163:
1.202 matthew 1164: # --------------------------------------------- Try to change a user's password
1165:
1166: sub changepass {
1.799 raeburn 1167: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 1168: $currentpass = &escape($currentpass);
1169: $newpass = &escape($newpass);
1.1030 raeburn 1170: my $lonhost = $perlvar{'lonHostID'};
1171: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 1172: $server);
1173: if (! $answer) {
1174: &logthis("No reply on password change request to $server ".
1175: "by $uname in domain $udom.");
1176: } elsif ($answer =~ "^ok") {
1177: &logthis("$uname in $udom successfully changed their password ".
1178: "on $server.");
1179: } elsif ($answer =~ "^pwchange_failure") {
1180: &logthis("$uname in $udom was unable to change their password ".
1181: "on $server. The action was blocked by either lcpasswd ".
1182: "or pwchange");
1183: } elsif ($answer =~ "^non_authorized") {
1184: &logthis("$uname in $udom did not get their password correct when ".
1185: "attempting to change it on $server.");
1186: } elsif ($answer =~ "^auth_mode_error") {
1187: &logthis("$uname in $udom attempted to change their password despite ".
1188: "not being locally or internally authenticated on $server.");
1189: } elsif ($answer =~ "^unknown_user") {
1190: &logthis("$uname in $udom attempted to change their password ".
1191: "on $server but were unable to because $server is not ".
1192: "their home server.");
1193: } elsif ($answer =~ "^refused") {
1194: &logthis("$server refused to change $uname in $udom password because ".
1195: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1196: } elsif ($answer =~ "invalid_client") {
1197: &logthis("$server refused to change $uname in $udom password because ".
1198: "it was a reset by e-mail originating from an invalid server.");
1.1172.2.113 raeburn 1199: } elsif ($answer =~ "^prioruse") {
1200: &logthis("$server refused to change $uname in $udom password because ".
1201: "the password had been used before");
1.202 matthew 1202: }
1203: return $answer;
1.1 albertel 1204: }
1205:
1.169 harris41 1206: # ----------------------- Try to determine user's current authentication scheme
1207:
1208: sub queryauthenticate {
1209: my ($uname,$udom)=@_;
1.456 albertel 1210: my $uhome=&homeserver($uname,$udom);
1211: if (!$uhome) {
1212: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1213: return 'no_host';
1214: }
1215: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1216: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1217: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1218: }
1.456 albertel 1219: return $answer;
1.169 harris41 1220: }
1221:
1.1 albertel 1222: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1223:
1.1 albertel 1224: sub authenticate {
1.1073 raeburn 1225: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1226: $upass=&escape($upass);
1227: $uname= &LONCAPA::clean_username($uname);
1.836 www 1228: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1229: my $newhome;
1.836 www 1230: if ((!$uhome) || ($uhome eq 'no_host')) {
1231: # Maybe the machine was offline and only re-appeared again recently?
1232: &reconlonc();
1233: # One more
1.952 raeburn 1234: $uhome=&homeserver($uname,$udom,1);
1235: if (($uhome eq 'no_host') && $checkdefauth) {
1236: if (defined(&domain($udom,'primary'))) {
1237: $newhome=&domain($udom,'primary');
1238: }
1239: if ($newhome ne '') {
1240: $uhome = $newhome;
1241: }
1242: }
1.836 www 1243: if ((!$uhome) || ($uhome eq 'no_host')) {
1244: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1245: return 'no_host';
1246: }
1.1 albertel 1247: }
1.1073 raeburn 1248: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1249: if ($answer eq 'authorized') {
1.952 raeburn 1250: if ($newhome) {
1251: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1252: return 'no_account_on_host';
1253: } else {
1254: &logthis("User $uname at $udom authorized by $uhome");
1255: return $uhome;
1256: }
1.471 albertel 1257: }
1258: if ($answer eq 'non_authorized') {
1259: &logthis("User $uname at $udom rejected by $uhome");
1260: return 'no_host';
1.9 www 1261: }
1.471 albertel 1262: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1263: return 'no_host';
1264: }
1265:
1.1073 raeburn 1266: sub can_host_session {
1.1074 raeburn 1267: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1268: my $canhost = 1;
1.1074 raeburn 1269: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1270: if (ref($remotesessions) eq 'HASH') {
1271: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1272: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1273: $canhost = 0;
1274: } else {
1275: $canhost = 1;
1276: }
1277: }
1278: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1279: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1280: $canhost = 1;
1281: } else {
1282: $canhost = 0;
1283: }
1284: }
1285: if ($canhost) {
1286: if ($remotesessions->{'version'} ne '') {
1287: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1288: if ($reqmajor ne '' && $reqminor ne '') {
1289: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1290: my $major = $1;
1291: my $minor = $2;
1292: if (($major < $reqmajor ) ||
1293: (($major == $reqmajor) && ($minor < $reqminor))) {
1294: $canhost = 0;
1295: }
1296: } else {
1297: $canhost = 0;
1298: }
1299: }
1300: }
1301: }
1302: }
1303: if ($canhost) {
1304: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1305: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1306: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1307: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1308: if (($uint_dom ne '') &&
1309: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1310: $canhost = 0;
1311: } else {
1312: $canhost = 1;
1313: }
1314: }
1315: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1316: if (($uint_dom ne '') &&
1317: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1318: $canhost = 1;
1319: } else {
1320: $canhost = 0;
1321: }
1322: }
1323: }
1324: }
1325: return $canhost;
1326: }
1327:
1.1083 raeburn 1328: sub spare_can_host {
1329: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1330: my $canhost=1;
1.1172.2.62 raeburn 1331: my $try_server_hostname = &hostname($try_server);
1332: my $serverhomeID = &get_server_homeID($try_server_hostname);
1333: my $serverhomedom = &host_domain($serverhomeID);
1334: my %defdomdefaults = &get_domain_defaults($serverhomedom);
1335: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {
1336: if ($defdomdefaults{'offloadnow'}{$try_server}) {
1337: $canhost = 0;
1338: }
1339: }
1340: if (($canhost) && ($uint_dom)) {
1341: my @intdoms;
1342: my $internet_names = &get_internet_names($try_server);
1343: if (ref($internet_names) eq 'ARRAY') {
1344: @intdoms = @{$internet_names};
1345: }
1346: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1347: my $remoterev = &get_server_loncaparev(undef,$try_server);
1348: $canhost = &can_host_session($udom,$try_server,$remoterev,
1349: $remotesessions,
1350: $defdomdefaults{'hostedsessions'});
1351: }
1.1083 raeburn 1352: }
1353: return $canhost;
1354: }
1355:
1.1123 raeburn 1356: sub this_host_spares {
1357: my ($dom) = @_;
1.1126 raeburn 1358: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1359: my @hosts = ¤t_machine_ids();
1360: foreach my $lonhost (@hosts) {
1361: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1362: $dom_in_use = $dom;
1363: $lonhost_in_use = $lonhost;
1.1123 raeburn 1364: last;
1365: }
1366: }
1.1126 raeburn 1367: if ($dom_in_use ne '') {
1368: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1369: }
1370: if (ref($result) ne 'HASH') {
1371: $lonhost_in_use = $perlvar{'lonHostID'};
1372: $dom_in_use = &host_domain($lonhost_in_use);
1373: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1374: if (ref($result) ne 'HASH') {
1375: $result = \%spareid;
1376: }
1377: }
1378: return $result;
1379: }
1380:
1381: sub spares_for_offload {
1382: my ($dom_in_use,$lonhost_in_use) = @_;
1383: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1384: if (defined($cached)) {
1385: return $result;
1386: } else {
1.1126 raeburn 1387: my $cachetime = 60*60*24;
1388: my %domconfig =
1389: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1390: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1391: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1392: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1393: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1394: }
1395: }
1396: }
1397: }
1.1126 raeburn 1398: return;
1.1123 raeburn 1399: }
1400:
1.1129 raeburn 1401: sub get_lonbalancer_config {
1402: my ($servers) = @_;
1403: my ($currbalancer,$currtargets);
1404: if (ref($servers) eq 'HASH') {
1405: foreach my $server (keys(%{$servers})) {
1406: my %what = (
1407: spareid => 1,
1408: perlvar => 1,
1409: );
1410: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1411: if ($result eq 'ok') {
1412: if (ref($returnhash) eq 'HASH') {
1413: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1414: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1415: $currbalancer = $server;
1416: $currtargets = {};
1417: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1418: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1419: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1420: }
1421: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1422: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1423: }
1424: }
1425: last;
1426: }
1427: }
1428: }
1429: }
1430: }
1431: }
1432: return ($currbalancer,$currtargets);
1433: }
1434:
1435: sub check_loadbalancing {
1.1172.2.88 raeburn 1436: my ($uname,$udom,$caller) = @_;
1.1172.2.12 raeburn 1437: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1.1172.2.107 raeburn 1438: $rule_in_effect,$offloadto,$otherserver,$setcookie);
1.1129 raeburn 1439: my $lonhost = $perlvar{'lonHostID'};
1.1172.2.4 raeburn 1440: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1441: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1442: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1443: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1444: my $serverhomedom = &host_domain($lonhost);
1.1172.2.75 raeburn 1445: my $domneedscache;
1.1129 raeburn 1446: my $cachetime = 60*60*24;
1447:
1448: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1449: $dom_in_use = $udom;
1450: $homeintdom = 1;
1451: } else {
1452: $dom_in_use = $serverhomedom;
1453: }
1454: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1455: unless (defined($cached)) {
1456: my %domconfig =
1457: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1458: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1459: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1172.2.75 raeburn 1460: } else {
1461: $domneedscache = $dom_in_use;
1.1129 raeburn 1462: }
1463: }
1464: if (ref($result) eq 'HASH') {
1.1172.2.107 raeburn 1465: ($is_balancer,$currtargets,$currrules,$setcookie) =
1.1172.2.12 raeburn 1466: &check_balancer_result($result,@hosts);
1.1129 raeburn 1467: if ($is_balancer) {
1468: if (ref($currrules) eq 'HASH') {
1469: if ($homeintdom) {
1470: if ($uname ne '') {
1471: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1472: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1473: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1474: $rule_in_effect = $currrules->{'_LC_author'};
1475: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1476: $rule_in_effect = $currrules->{'_LC_adv'}
1477: }
1478: }
1479: if ($rule_in_effect eq '') {
1480: my %userenv = &userenvironment($udom,$uname,'inststatus');
1481: if ($userenv{'inststatus'} ne '') {
1482: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1483: my ($othertitle,$usertypes,$types) =
1484: &Apache::loncommon::sorted_inst_types($udom);
1485: if (ref($types) eq 'ARRAY') {
1486: foreach my $type (@{$types}) {
1487: if (grep(/^\Q$type\E$/,@statuses)) {
1488: if (exists($currrules->{$type})) {
1489: $rule_in_effect = $currrules->{$type};
1490: }
1491: }
1492: }
1493: }
1494: } else {
1495: if (exists($currrules->{'default'})) {
1496: $rule_in_effect = $currrules->{'default'};
1497: }
1498: }
1499: }
1500: } else {
1501: if (exists($currrules->{'default'})) {
1502: $rule_in_effect = $currrules->{'default'};
1503: }
1504: }
1505: } else {
1506: if ($currrules->{'_LC_external'} ne '') {
1507: $rule_in_effect = $currrules->{'_LC_external'};
1508: }
1509: }
1510: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1511: $uname,$udom);
1512: }
1513: }
1514: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1.1172.2.35 raeburn 1515: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1.1129 raeburn 1516: unless (defined($cached)) {
1517: my %domconfig =
1518: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1519: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1172.2.75 raeburn 1520: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);
1521: } else {
1522: $domneedscache = $serverhomedom;
1.1129 raeburn 1523: }
1524: }
1525: if (ref($result) eq 'HASH') {
1.1172.2.107 raeburn 1526: ($is_balancer,$currtargets,$currrules,$setcookie) =
1.1172.2.12 raeburn 1527: &check_balancer_result($result,@hosts);
1528: if ($is_balancer) {
1.1129 raeburn 1529: if (ref($currrules) eq 'HASH') {
1530: if ($currrules->{'_LC_internetdom'} ne '') {
1531: $rule_in_effect = $currrules->{'_LC_internetdom'};
1532: }
1533: }
1534: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1535: $uname,$udom);
1536: }
1537: } else {
1538: if ($perlvar{'lonBalancer'} eq 'yes') {
1539: $is_balancer = 1;
1540: $offloadto = &this_host_spares($dom_in_use);
1541: }
1.1172.2.75 raeburn 1542: unless (defined($cached)) {
1543: $domneedscache = $serverhomedom;
1544: }
1.1129 raeburn 1545: }
1546: } else {
1547: if ($perlvar{'lonBalancer'} eq 'yes') {
1548: $is_balancer = 1;
1549: $offloadto = &this_host_spares($dom_in_use);
1550: }
1.1172.2.75 raeburn 1551: unless (defined($cached)) {
1552: $domneedscache = $serverhomedom;
1553: }
1554: }
1555: if ($domneedscache) {
1556: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
1.1129 raeburn 1557: }
1.1172.2.5 raeburn 1558: if ($is_balancer) {
1559: my $lowest_load = 30000;
1560: if (ref($offloadto) eq 'HASH') {
1561: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1562: foreach my $try_server (@{$offloadto->{'primary'}}) {
1563: ($otherserver,$lowest_load) =
1564: &compare_server_load($try_server,$otherserver,$lowest_load);
1565: }
1.1129 raeburn 1566: }
1.1172.2.5 raeburn 1567: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1568:
1.1172.2.5 raeburn 1569: if (!$found_server) {
1570: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1571: foreach my $try_server (@{$offloadto->{'default'}}) {
1572: ($otherserver,$lowest_load) =
1573: &compare_server_load($try_server,$otherserver,$lowest_load);
1574: }
1575: }
1576: }
1577: } elsif (ref($offloadto) eq 'ARRAY') {
1578: if (@{$offloadto} == 1) {
1579: $otherserver = $offloadto->[0];
1580: } elsif (@{$offloadto} > 1) {
1581: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1582: ($otherserver,$lowest_load) =
1583: &compare_server_load($try_server,$otherserver,$lowest_load);
1584: }
1585: }
1586: }
1.1172.2.88 raeburn 1587: unless ($caller eq 'login') {
1588: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1589: $is_balancer = 0;
1590: if ($uname ne '' && $udom ne '') {
1591: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1592: &appenv({'user.loadbalexempt' => $lonhost,
1593: 'user.loadbalcheck.time' => time});
1594: }
1.1172.2.5 raeburn 1595: }
1.1129 raeburn 1596: }
1597: }
1.1172.2.107 raeburn 1598: unless ($homeintdom) {
1599: undef($setcookie);
1600: }
1.1129 raeburn 1601: }
1.1172.2.107 raeburn 1602: return ($is_balancer,$otherserver,$setcookie);
1.1129 raeburn 1603: }
1604:
1.1172.2.12 raeburn 1605: sub check_balancer_result {
1606: my ($result,@hosts) = @_;
1.1172.2.107 raeburn 1607: my ($is_balancer,$currtargets,$currrules,$setcookie);
1.1172.2.12 raeburn 1608: if (ref($result) eq 'HASH') {
1609: if ($result->{'lonhost'} ne '') {
1610: my $currbalancer = $result->{'lonhost'};
1611: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1612: $is_balancer = 1;
1613: $currtargets = $result->{'targets'};
1614: $currrules = $result->{'rules'};
1615: }
1616: } else {
1617: foreach my $key (keys(%{$result})) {
1618: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1619: (ref($result->{$key}) eq 'HASH')) {
1620: $is_balancer = 1;
1621: $currrules = $result->{$key}{'rules'};
1622: $currtargets = $result->{$key}{'targets'};
1.1172.2.107 raeburn 1623: $setcookie = $result->{$key}{'cookie'};
1.1172.2.12 raeburn 1624: last;
1625: }
1626: }
1627: }
1628: }
1.1172.2.107 raeburn 1629: return ($is_balancer,$currtargets,$currrules,$setcookie);
1.1172.2.12 raeburn 1630: }
1631:
1.1129 raeburn 1632: sub get_loadbalancer_targets {
1633: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1634: my $offloadto;
1.1172.2.4 raeburn 1635: if ($rule_in_effect eq 'none') {
1636: return [$perlvar{'lonHostID'}];
1637: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1638: $offloadto = $currtargets;
1639: } else {
1640: if ($rule_in_effect eq 'homeserver') {
1641: my $homeserver = &homeserver($uname,$udom);
1642: if ($homeserver ne 'no_host') {
1643: $offloadto = [$homeserver];
1644: }
1645: } elsif ($rule_in_effect eq 'externalbalancer') {
1646: my %domconfig =
1647: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1648: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1649: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1650: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1651: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1652: }
1653: }
1654: } else {
1.1172.2.7 raeburn 1655: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1656: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1657: if (&hostname($remotebalancer) ne '') {
1658: $offloadto = [$remotebalancer];
1659: }
1660: }
1661: } elsif (&hostname($rule_in_effect) ne '') {
1662: $offloadto = [$rule_in_effect];
1663: }
1664: }
1665: return $offloadto;
1666: }
1667:
1.1127 raeburn 1668: sub internet_dom_servers {
1669: my ($dom) = @_;
1670: my (%uniqservers,%servers);
1671: my $primaryserver = &hostname(&domain($dom,'primary'));
1672: my @machinedoms = &machine_domains($primaryserver);
1673: foreach my $mdom (@machinedoms) {
1674: my %currservers = %servers;
1675: my %server = &get_servers($mdom);
1676: %servers = (%currservers,%server);
1677: }
1678: my %by_hostname;
1679: foreach my $id (keys(%servers)) {
1680: push(@{$by_hostname{$servers{$id}}},$id);
1681: }
1682: foreach my $hostname (sort(keys(%by_hostname))) {
1683: if (@{$by_hostname{$hostname}} > 1) {
1684: my $match = 0;
1685: foreach my $id (@{$by_hostname{$hostname}}) {
1686: if (&host_domain($id) eq $dom) {
1687: $uniqservers{$id} = $hostname;
1688: $match = 1;
1689: }
1690: }
1691: unless ($match) {
1692: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1693: }
1694: } else {
1695: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1696: }
1697: }
1698: return %uniqservers;
1699: }
1700:
1.1 albertel 1701: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1702:
1.599 albertel 1703: my %homecache;
1.1 albertel 1704: sub homeserver {
1.230 stredwic 1705: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1706: my $index="$uname:$udom";
1.426 albertel 1707:
1.599 albertel 1708: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1709:
1710: my %servers = &get_servers($udom,'library');
1711: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1712: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1713: exists($badServerCache{$tryserver}));
1.841 albertel 1714:
1715: my $answer=reply("home:$udom:$uname",$tryserver);
1716: if ($answer eq 'found') {
1717: delete($badServerCache{$tryserver});
1718: return $homecache{$index}=$tryserver;
1719: } elsif ($answer eq 'no_host') {
1720: $badServerCache{$tryserver}=1;
1721: }
1.1 albertel 1722: }
1723: return 'no_host';
1.70 www 1724: }
1725:
1726: # ------------------------------------- Find the usernames behind a list of IDs
1727:
1728: sub idget {
1729: my ($udom,@ids)=@_;
1730: my %returnhash=();
1731:
1.841 albertel 1732: my %servers = &get_servers($udom,'library');
1733: foreach my $tryserver (keys(%servers)) {
1.1172.2.73 raeburn 1734: my $idlist=join('&', map { &escape($_); } @ids);
1.841 albertel 1735: $idlist=~tr/A-Z/a-z/;
1736: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1737: my @answer=();
1738: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1739: @answer=split(/\&/,$reply);
1740: } ;
1741: my $i;
1742: for ($i=0;$i<=$#ids;$i++) {
1743: if ($answer[$i]) {
1.1172.2.73 raeburn 1744: $returnhash{$ids[$i]}=&unescape($answer[$i]);
1.841 albertel 1745: }
1746: }
1747: }
1.70 www 1748: return %returnhash;
1749: }
1750:
1751: # ------------------------------------- Find the IDs behind a list of usernames
1752:
1753: sub idrget {
1754: my ($udom,@unames)=@_;
1755: my %returnhash=();
1.800 albertel 1756: foreach my $uname (@unames) {
1757: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1758: }
1.70 www 1759: return %returnhash;
1760: }
1761:
1762: # ------------------------------- Store away a list of names and associated IDs
1763:
1764: sub idput {
1765: my ($udom,%ids)=@_;
1766: my %servers=();
1.800 albertel 1767: foreach my $uname (keys(%ids)) {
1768: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1769: my $uhom=&homeserver($uname,$udom);
1.70 www 1770: if ($uhom ne 'no_host') {
1.800 albertel 1771: my $id=&escape($ids{$uname});
1.70 www 1772: $id=~tr/A-Z/a-z/;
1.800 albertel 1773: my $esc_unam=&escape($uname);
1.70 www 1774: if ($servers{$uhom}) {
1.800 albertel 1775: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1776: } else {
1.800 albertel 1777: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1778: }
1779: }
1.191 harris41 1780: }
1.800 albertel 1781: foreach my $server (keys(%servers)) {
1782: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1783: }
1.344 www 1784: }
1785:
1.1172.2.30 raeburn 1786: # ---------------------------------------- Delete unwanted IDs from ids.db file
1787:
1788: sub iddel {
1789: my ($udom,$idshashref,$uhome)=@_;
1790: my %result=();
1791: unless (ref($idshashref) eq 'HASH') {
1792: return %result;
1793: }
1794: my %servers=();
1795: while (my ($id,$uname) = each(%{$idshashref})) {
1796: my $uhom;
1797: if ($uhome) {
1798: $uhom = $uhome;
1799: } else {
1800: $uhom=&homeserver($uname,$udom);
1801: }
1802: if ($uhom ne 'no_host') {
1803: if ($servers{$uhom}) {
1804: $servers{$uhom}.='&'.&escape($id);
1805: } else {
1806: $servers{$uhom}=&escape($id);
1807: }
1808: }
1809: }
1810: foreach my $server (keys(%servers)) {
1811: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
1812: }
1813: return %result;
1814: }
1815:
1.1023 raeburn 1816: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1817: sub dump_dom {
1.1165 droeschl 1818: my ($namespace, $udom, $regexp) = @_;
1819:
1820: $udom ||= $env{'user.domain'};
1821:
1822: return () unless $udom;
1823:
1824: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1825: }
1826:
1.1023 raeburn 1827: # ------------------------------------------ get items from domain db files
1.806 raeburn 1828:
1829: sub get_dom {
1.860 raeburn 1830: my ($namespace,$storearr,$udom,$uhome)=@_;
1.1172.2.57 raeburn 1831: return if ($udom eq 'public');
1.806 raeburn 1832: my $items='';
1833: foreach my $item (@$storearr) {
1834: $items.=&escape($item).'&';
1835: }
1836: $items=~s/\&$//;
1.860 raeburn 1837: if (!$udom) {
1838: $udom=$env{'user.domain'};
1.1172.2.57 raeburn 1839: return if ($udom eq 'public');
1.860 raeburn 1840: if (defined(&domain($udom,'primary'))) {
1841: $uhome=&domain($udom,'primary');
1842: } else {
1.874 albertel 1843: undef($uhome);
1.860 raeburn 1844: }
1845: } else {
1846: if (!$uhome) {
1847: if (defined(&domain($udom,'primary'))) {
1848: $uhome=&domain($udom,'primary');
1849: }
1850: }
1851: }
1852: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1853: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1854: my %returnhash;
1.875 albertel 1855: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1856: return %returnhash;
1857: }
1.806 raeburn 1858: my @pairs=split(/\&/,$rep);
1859: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1860: return @pairs;
1861: }
1862: my $i=0;
1863: foreach my $item (@$storearr) {
1864: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1865: $i++;
1866: }
1867: return %returnhash;
1868: } else {
1.880 banghart 1869: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1870: }
1871: }
1872:
1873: # -------------------------------------------- put items in domain db files
1874:
1875: sub put_dom {
1.860 raeburn 1876: my ($namespace,$storehash,$udom,$uhome)=@_;
1877: if (!$udom) {
1878: $udom=$env{'user.domain'};
1879: if (defined(&domain($udom,'primary'))) {
1880: $uhome=&domain($udom,'primary');
1881: } else {
1.874 albertel 1882: undef($uhome);
1.860 raeburn 1883: }
1884: } else {
1885: if (!$uhome) {
1886: if (defined(&domain($udom,'primary'))) {
1887: $uhome=&domain($udom,'primary');
1888: }
1889: }
1890: }
1891: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1892: my $items='';
1893: foreach my $item (keys(%$storehash)) {
1894: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1895: }
1896: $items=~s/\&$//;
1897: return &reply("putdom:$udom:$namespace:$items",$uhome);
1898: } else {
1.860 raeburn 1899: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1900: }
1901: }
1902:
1.1023 raeburn 1903: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1904: sub newput_dom {
1.1023 raeburn 1905: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1906: my $result;
1907: if (!$udom) {
1908: $udom=$env{'user.domain'};
1909: }
1.1023 raeburn 1910: if ($udom) {
1911: my $uname = &get_domainconfiguser($udom);
1912: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1913: }
1914: return $result;
1915: }
1916:
1.1023 raeburn 1917: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1918: sub del_dom {
1.1023 raeburn 1919: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1920: if (ref($storearr) eq 'ARRAY') {
1921: if (!$udom) {
1922: $udom=$env{'user.domain'};
1923: }
1.1023 raeburn 1924: if ($udom) {
1925: my $uname = &get_domainconfiguser($udom);
1926: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1927: }
1928: }
1929: }
1930:
1.1023 raeburn 1931: # ----------------------------------construct domainconfig user for a domain
1932: sub get_domainconfiguser {
1933: my ($udom) = @_;
1934: return $udom.'-domainconfig';
1935: }
1936:
1.837 raeburn 1937: sub retrieve_inst_usertypes {
1938: my ($udom) = @_;
1939: my (%returnhash,@order);
1.989 raeburn 1940: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1941: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1942: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1.1172.2.44 raeburn 1943: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
1.989 raeburn 1944: } else {
1945: if (defined(&domain($udom,'primary'))) {
1946: my $uhome=&domain($udom,'primary');
1947: my $rep=&reply("inst_usertypes:$udom",$uhome);
1948: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1.1172.2.44 raeburn 1949: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
1.989 raeburn 1950: return (\%returnhash,\@order);
1951: }
1952: my ($hashitems,$orderitems) = split(/:/,$rep);
1953: my @pairs=split(/\&/,$hashitems);
1954: foreach my $item (@pairs) {
1955: my ($key,$value)=split(/=/,$item,2);
1956: $key = &unescape($key);
1957: next if ($key =~ /^error: 2 /);
1958: $returnhash{$key}=&thaw_unescape($value);
1959: }
1960: my @esc_order = split(/\&/,$orderitems);
1961: foreach my $item (@esc_order) {
1962: push(@order,&unescape($item));
1963: }
1964: } else {
1.1172.2.44 raeburn 1965: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
1.837 raeburn 1966: }
1.1172.2.44 raeburn 1967: return (\%returnhash,\@order);
1.837 raeburn 1968: }
1969: }
1970:
1.868 raeburn 1971: sub is_domainimage {
1972: my ($url) = @_;
1.1172.2.74 raeburn 1973: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+[^/]-) {
1.868 raeburn 1974: if (&domain($1) ne '') {
1975: return '1';
1976: }
1977: }
1978: return;
1979: }
1980:
1.899 raeburn 1981: sub inst_directory_query {
1982: my ($srch) = @_;
1983: my $udom = $srch->{'srchdomain'};
1984: my %results;
1985: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1986: my $outcome;
1.899 raeburn 1987: if ($homeserver ne '') {
1.904 albertel 1988: my $queryid=&reply("querysend:instdirsearch:".
1989: &escape($srch->{'srchby'}).':'.
1990: &escape($srch->{'srchterm'}).':'.
1991: &escape($srch->{'srchtype'}),$homeserver);
1992: my $host=&hostname($homeserver);
1993: if ($queryid !~/^\Q$host\E\_/) {
1.1172.2.96 raeburn 1994: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);
1.904 albertel 1995: return;
1996: }
1997: my $response = &get_query_reply($queryid);
1998: my $maxtries = 5;
1999: my $tries = 1;
2000: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2001: $response = &get_query_reply($queryid);
2002: $tries ++;
2003: }
2004:
2005: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 2006: if ($response eq 'unavailable') {
2007: $outcome = $response;
2008: } else {
2009: $outcome = 'ok';
2010: my @matches = split(/\n/,$response);
2011: foreach my $match (@matches) {
2012: my ($key,$value) = split(/=/,$match);
2013: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
2014: }
1.899 raeburn 2015: }
2016: }
2017: }
1.909 raeburn 2018: return ($outcome,%results);
1.899 raeburn 2019: }
2020:
2021: sub usersearch {
2022: my ($srch) = @_;
2023: my $dom = $srch->{'srchdomain'};
2024: my %results;
2025: my %libserv = &all_library();
2026: my $query = 'usersearch';
2027: foreach my $tryserver (keys(%libserv)) {
2028: if (&host_domain($tryserver) eq $dom) {
2029: my $host=&hostname($tryserver);
2030: my $queryid=
1.911 raeburn 2031: &reply("querysend:".&escape($query).':'.
2032: &escape($srch->{'srchby'}).':'.
1.899 raeburn 2033: &escape($srch->{'srchtype'}).':'.
2034: &escape($srch->{'srchterm'}),$tryserver);
2035: if ($queryid !~/^\Q$host\E\_/) {
2036: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 2037: next;
1.899 raeburn 2038: }
2039: my $reply = &get_query_reply($queryid);
2040: my $maxtries = 1;
2041: my $tries = 1;
2042: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
2043: $reply = &get_query_reply($queryid);
2044: $tries ++;
2045: }
2046: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
2047: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
2048: } else {
1.911 raeburn 2049: my @matches;
2050: if ($reply =~ /\n/) {
2051: @matches = split(/\n/,$reply);
2052: } else {
2053: @matches = split(/\&/,$reply);
2054: }
1.899 raeburn 2055: foreach my $match (@matches) {
2056: my ($uname,$udom,%userhash);
1.911 raeburn 2057: foreach my $entry (split(/:/,$match)) {
2058: my ($key,$value) =
2059: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 2060: $userhash{$key} = $value;
2061: if ($key eq 'username') {
2062: $uname = $value;
2063: } elsif ($key eq 'domain') {
2064: $udom = $value;
1.911 raeburn 2065: }
1.899 raeburn 2066: }
2067: $results{$uname.':'.$udom} = \%userhash;
2068: }
2069: }
2070: }
2071: }
2072: return %results;
2073: }
2074:
1.912 raeburn 2075: sub get_instuser {
2076: my ($udom,$uname,$id) = @_;
2077: my $homeserver = &domain($udom,'primary');
2078: my ($outcome,%results);
2079: if ($homeserver ne '') {
2080: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
2081: &escape($id).':'.&escape($udom),$homeserver);
2082: my $host=&hostname($homeserver);
2083: if ($queryid !~/^\Q$host\E\_/) {
2084: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
2085: return;
2086: }
2087: my $response = &get_query_reply($queryid);
2088: my $maxtries = 5;
2089: my $tries = 1;
2090: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2091: $response = &get_query_reply($queryid);
2092: $tries ++;
2093: }
2094: if (!&error($response) && $response ne 'refused') {
2095: if ($response eq 'unavailable') {
2096: $outcome = $response;
2097: } else {
2098: $outcome = 'ok';
2099: my @matches = split(/\n/,$response);
2100: foreach my $match (@matches) {
2101: my ($key,$value) = split(/=/,$match);
2102: $results{&unescape($key)} = &thaw_unescape($value);
2103: }
2104: }
2105: }
2106: }
2107: my %userinfo;
2108: if (ref($results{$uname}) eq 'HASH') {
2109: %userinfo = %{$results{$uname}};
2110: }
2111: return ($outcome,%userinfo);
2112: }
2113:
1.1172.2.69 raeburn 2114: sub get_multiple_instusers {
2115: my ($udom,$users,$caller) = @_;
2116: my ($outcome,$results);
2117: if (ref($users) eq 'HASH') {
2118: my $count = keys(%{$users});
2119: my $requested = &freeze_escape($users);
2120: my $homeserver = &domain($udom,'primary');
2121: if ($homeserver ne '') {
2122: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
2123: my $host=&hostname($homeserver);
2124: if ($queryid !~/^\Q$host\E\_/) {
2125: &logthis('get_multiple_instusers invalid queryid: '.$queryid.
2126: ' for host: '.$homeserver.'in domain '.$udom);
2127: return ($outcome,$results);
2128: }
2129: my $response = &get_query_reply($queryid);
2130: my $maxtries = 5;
2131: if ($count > 100) {
2132: $maxtries = 1+int($count/20);
2133: }
2134: my $tries = 1;
2135: while (($response=~/^timeout/) && ($tries <= $maxtries)) {
2136: $response = &get_query_reply($queryid);
2137: $tries ++;
2138: }
2139: if ($response eq '') {
2140: $results = {};
2141: foreach my $key (keys(%{$users})) {
2142: my ($uname,$id);
2143: if ($caller eq 'id') {
2144: $id = $key;
2145: } else {
2146: $uname = $key;
2147: }
2148: my ($resp,%info) = &get_instuser($udom,$uname,$id);
2149: $outcome = $resp;
2150: if ($resp eq 'ok') {
2151: %{$results} = (%{$results}, %info);
2152: } else {
2153: last;
2154: }
2155: }
2156: } elsif(!&error($response) && ($response ne 'refused')) {
2157: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) {
2158: $outcome = $response;
2159: } else {
2160: ($outcome,my $userdata) = split(/=/,$response,2);
2161: if ($outcome eq 'ok') {
2162: $results = &thaw_unescape($userdata);
2163: }
2164: }
2165: }
2166: }
2167: }
2168: return ($outcome,$results);
2169: }
2170:
1.912 raeburn 2171: sub inst_rulecheck {
1.923 raeburn 2172: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 2173: my %returnhash;
2174: if ($udom ne '') {
2175: if (ref($rules) eq 'ARRAY') {
2176: @{$rules} = map {&escape($_);} (@{$rules});
2177: my $rulestr = join(':',@{$rules});
2178: my $homeserver=&domain($udom,'primary');
2179: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2180: my $response;
2181: if ($item eq 'username') {
2182: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
2183: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 2184: $homeserver));
1.923 raeburn 2185: } elsif ($item eq 'id') {
2186: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
2187: ':'.&escape($id).':'.$rulestr,
2188: $homeserver));
1.945 raeburn 2189: } elsif ($item eq 'selfcreate') {
2190: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 2191: &escape($udom).':'.&escape($uname).
2192: ':'.$rulestr,$homeserver));
1.923 raeburn 2193: }
1.912 raeburn 2194: if ($response ne 'refused') {
2195: my @pairs=split(/\&/,$response);
2196: foreach my $item (@pairs) {
2197: my ($key,$value)=split(/=/,$item,2);
2198: $key = &unescape($key);
2199: next if ($key =~ /^error: 2 /);
2200: $returnhash{$key}=&thaw_unescape($value);
2201: }
2202: }
2203: }
2204: }
2205: }
2206: return %returnhash;
2207: }
2208:
2209: sub inst_userrules {
1.923 raeburn 2210: my ($udom,$check) = @_;
1.912 raeburn 2211: my (%ruleshash,@ruleorder);
2212: if ($udom ne '') {
2213: my $homeserver=&domain($udom,'primary');
2214: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2215: my $response;
2216: if ($check eq 'id') {
2217: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 2218: $homeserver);
1.943 raeburn 2219: } elsif ($check eq 'email') {
2220: $response=&reply('instemailrules:'.&escape($udom),
2221: $homeserver);
1.923 raeburn 2222: } else {
2223: $response=&reply('instuserrules:'.&escape($udom),
2224: $homeserver);
2225: }
1.912 raeburn 2226: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 2227: ($response ne 'unknown_cmd') &&
1.912 raeburn 2228: ($response ne 'no_such_host')) {
2229: my ($hashitems,$orderitems) = split(/:/,$response);
2230: my @pairs=split(/\&/,$hashitems);
2231: foreach my $item (@pairs) {
2232: my ($key,$value)=split(/=/,$item,2);
2233: $key = &unescape($key);
2234: next if ($key =~ /^error: 2 /);
2235: $ruleshash{$key}=&thaw_unescape($value);
2236: }
2237: my @esc_order = split(/\&/,$orderitems);
2238: foreach my $item (@esc_order) {
2239: push(@ruleorder,&unescape($item));
2240: }
2241: }
2242: }
2243: }
2244: return (\%ruleshash,\@ruleorder);
2245: }
2246:
1.976 raeburn 2247: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 2248:
2249: sub get_domain_defaults {
1.1172.2.35 raeburn 2250: my ($domain,$ignore_cache) = @_;
2251: return if (($domain eq '') || ($domain eq 'public'));
1.943 raeburn 2252: my $cachetime = 60*60*24;
1.1172.2.35 raeburn 2253: unless ($ignore_cache) {
2254: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
2255: if (defined($cached)) {
2256: if (ref($result) eq 'HASH') {
2257: return %{$result};
2258: }
1.943 raeburn 2259: }
2260: }
2261: my %domdefaults;
2262: my %domconfig =
1.989 raeburn 2263: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 2264: 'requestcourses','inststatus',
1.1172.2.9 raeburn 2265: 'coursedefaults','usersessions',
1.1172.2.46 raeburn 2266: 'requestauthor','selfenrollment',
1.1172.2.89 raeburn 2267: 'coursecategories','autoenroll',
2268: 'helpsettings'],$domain);
1.1172.2.41 raeburn 2269: my @coursetypes = ('official','unofficial','community','textbook');
1.943 raeburn 2270: if (ref($domconfig{'defaults'}) eq 'HASH') {
2271: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2272: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2273: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 2274: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 2275: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 2276: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.1172.2.91 raeburn 2277: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
2278: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
2279: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
1.943 raeburn 2280: } else {
2281: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2282: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2283: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2284: }
1.976 raeburn 2285: if (ref($domconfig{'quotas'}) eq 'HASH') {
2286: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2287: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2288: } else {
2289: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1.1172.2.29 raeburn 2290: }
1.1172.2.6 raeburn 2291: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 2292: foreach my $item (@usertools) {
2293: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2294: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2295: }
2296: }
1.1172.2.29 raeburn 2297: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2298: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2299: }
1.976 raeburn 2300: }
1.985 raeburn 2301: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1172.2.37 raeburn 2302: foreach my $item ('official','unofficial','community','textbook') {
1.985 raeburn 2303: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2304: }
2305: }
1.1172.2.9 raeburn 2306: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2307: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2308: }
1.989 raeburn 2309: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1.1172.2.44 raeburn 2310: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
1.989 raeburn 2311: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2312: }
2313: }
1.1047 raeburn 2314: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1.1172.2.60 raeburn 2315: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
2316: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
2317: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
2318: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
2319: }
1.1172.2.41 raeburn 2320: foreach my $type (@coursetypes) {
2321: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2322: unless ($type eq 'community') {
2323: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2324: }
2325: }
2326: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2327: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2328: }
1.1172.2.60 raeburn 2329: if ($domdefaults{'postsubmit'} eq 'on') {
2330: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
2331: $domdefaults{$type.'postsubtimeout'} =
2332: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
2333: }
2334: }
1.1172.2.30 raeburn 2335: }
1.1172.2.67 raeburn 2336: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
2337: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
2338: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
2339: if (@clonecodes) {
2340: $domdefaults{'canclone'} = join('+',@clonecodes);
2341: }
2342: }
2343: } elsif ($domconfig{'coursedefaults'}{'canclone'}) {
2344: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
2345: }
1.1172.2.103 raeburn 2346: if ($domconfig{'coursedefaults'}{'texengine'}) {
2347: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
2348: }
1.1047 raeburn 2349: }
1.1073 raeburn 2350: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2351: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2352: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2353: }
2354: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2355: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2356: }
1.1172.2.62 raeburn 2357: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
2358: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
2359: }
1.1073 raeburn 2360: }
1.1172.2.41 raeburn 2361: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2362: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2363: my @settings = ('types','registered','enroll_dates','access_dates','section',
2364: 'approval','limit');
2365: foreach my $type (@coursetypes) {
2366: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2367: my @mgrdc = ();
2368: foreach my $item (@settings) {
2369: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2370: push(@mgrdc,$item);
2371: }
2372: }
2373: if (@mgrdc) {
2374: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2375: }
2376: }
2377: }
2378: }
2379: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2380: foreach my $type (@coursetypes) {
2381: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2382: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2383: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2384: }
2385: }
2386: }
2387: }
2388: }
1.1172.2.46 raeburn 2389: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2390: $domdefaults{'catauth'} = 'std';
2391: $domdefaults{'catunauth'} = 'std';
2392: if ($domconfig{'coursecategories'}{'auth'}) {
2393: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2394: }
2395: if ($domconfig{'coursecategories'}{'unauth'}) {
2396: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2397: }
2398: }
1.1172.2.76 raeburn 2399: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
2400: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
2401: }
1.1172.2.89 raeburn 2402: if (ref($domconfig{'helpsettings'}) eq 'HASH') {
2403: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
2404: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
2405: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
2406: }
2407: }
1.1172.2.23 raeburn 2408: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
1.943 raeburn 2409: return %domdefaults;
2410: }
2411:
1.1172.2.106 raeburn 2412: sub get_dom_cats {
2413: my ($dom) = @_;
2414: return unless (&domain($dom));
2415: my ($cats,$cached)=&is_cached_new('cats',$dom);
2416: unless (defined($cached)) {
2417: my %domconfig = &get_dom('configuration',['coursecategories'],$dom);
2418: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2419: if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {
2420: %{$cats} = %{$domconfig{'coursecategories'}{'cats'}};
2421: } else {
2422: $cats = {};
2423: }
2424: } else {
2425: $cats = {};
2426: }
2427: &Apache::lonnet::do_cache_new('cats',$dom,$cats,3600);
2428: }
2429: return $cats;
2430: }
2431:
2432: sub get_dom_instcats {
2433: my ($dom) = @_;
2434: return unless (&domain($dom));
2435: my ($instcats,$cached)=&is_cached_new('instcats',$dom);
2436: unless (defined($cached)) {
2437: my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order);
2438: my $totcodes = &retrieve_instcodes(\%coursecodes,$dom);
2439: if ($totcodes > 0) {
2440: my $caller = 'global';
2441: if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes,
2442: \@codetitles,\%cat_titles,\%cat_order) eq 'ok') {
2443: $instcats = {
2444: codes => \%codes,
2445: codetitles => \@codetitles,
2446: cat_titles => \%cat_titles,
2447: cat_order => \%cat_order,
2448: };
2449: &do_cache_new('instcats',$dom,$instcats,3600);
2450: }
2451: }
2452: }
2453: return $instcats;
2454: }
2455:
2456: sub retrieve_instcodes {
2457: my ($coursecodes,$dom) = @_;
2458: my $totcodes;
2459: my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course');
2460: foreach my $course (keys(%courses)) {
2461: if (ref($courses{$course}) eq 'HASH') {
2462: if ($courses{$course}{'inst_code'} ne '') {
2463: $$coursecodes{$course} = $courses{$course}{'inst_code'};
2464: $totcodes ++;
2465: }
2466: }
2467: }
2468: return $totcodes;
2469: }
2470:
1.1172.2.113 raeburn 2471: # --------------------------------------------- Get domain config for passwords
2472:
2473: sub get_passwdconf {
2474: my ($dom) = @_;
2475: my (%passwdconf,$gotconf,$lookup);
2476: my ($result,$cached)=&is_cached_new('passwdconf',$dom);
2477: if (defined($cached)) {
2478: if (ref($result) eq 'HASH') {
2479: %passwdconf = %{$result};
2480: $gotconf = 1;
2481: }
2482: }
2483: unless ($gotconf) {
2484: my %domconfig = &get_dom('configuration',['passwords'],$dom);
2485: if (ref($domconfig{'passwords'}) eq 'HASH') {
2486: %passwdconf = %{$domconfig{'passwords'}};
2487: }
2488: my $cachetime = 24*60*60;
2489: &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
2490: }
2491: return %passwdconf;
2492: }
2493:
1.344 www 2494: # --------------------------------------------------- Assign a key to a student
2495:
2496: sub assign_access_key {
1.364 www 2497: #
2498: # a valid key looks like uname:udom#comments
2499: # comments are being appended
2500: #
1.498 www 2501: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2502: $kdom=
1.620 albertel 2503: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2504: $knum=
1.620 albertel 2505: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2506: $cdom=
1.620 albertel 2507: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2508: $cnum=
1.620 albertel 2509: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2510: $udom=$env{'user.name'} unless (defined($udom));
2511: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2512: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2513: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2514: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2515: # assigned to this person
2516: # - this should not happen,
1.345 www 2517: # unless something went wrong
2518: # the first time around
2519: # ready to assign
1.364 www 2520: $logentry=$1.'; '.$logentry;
1.496 www 2521: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2522: $kdom,$knum) eq 'ok') {
1.345 www 2523: # key now belongs to user
1.346 www 2524: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2525: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2526: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2527: return 'ok';
2528: } else {
2529: return
2530: 'error: Count not permanently assign key, will need to be re-entered later.';
2531: }
2532: } else {
2533: return 'error: Could not assign key, try again later.';
2534: }
1.364 www 2535: } elsif (!$existing{$ckey}) {
1.345 www 2536: # the key does not exist
2537: return 'error: The key does not exist';
2538: } else {
2539: # the key is somebody else's
2540: return 'error: The key is already in use';
2541: }
1.344 www 2542: }
2543:
1.364 www 2544: # ------------------------------------------ put an additional comment on a key
2545:
2546: sub comment_access_key {
2547: #
2548: # a valid key looks like uname:udom#comments
2549: # comments are being appended
2550: #
2551: my ($ckey,$cdom,$cnum,$logentry)=@_;
2552: $cdom=
1.620 albertel 2553: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2554: $cnum=
1.620 albertel 2555: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2556: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2557: if ($existing{$ckey}) {
2558: $existing{$ckey}.='; '.$logentry;
2559: # ready to assign
1.367 www 2560: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2561: $cdom,$cnum) eq 'ok') {
2562: return 'ok';
2563: } else {
2564: return 'error: Count not store comment.';
2565: }
2566: } else {
2567: # the key does not exist
2568: return 'error: The key does not exist';
2569: }
2570: }
2571:
1.344 www 2572: # ------------------------------------------------------ Generate a set of keys
2573:
2574: sub generate_access_keys {
1.364 www 2575: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2576: $cdom=
1.620 albertel 2577: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2578: $cnum=
1.620 albertel 2579: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2580: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2581: unless (($cdom) && ($cnum)) { return 0; }
2582: if ($number>10000) { return 0; }
2583: sleep(2); # make sure don't get same seed twice
2584: srand(time()^($$+($$<<15))); # from "Programming Perl"
2585: my $total=0;
2586: for (my $i=1;$i<=$number;$i++) {
2587: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2588: sprintf("%lx",int(100000*rand)).'-'.
2589: sprintf("%lx",int(100000*rand));
2590: $newkey=~s/1/g/g; # folks mix up 1 and l
2591: $newkey=~s/0/h/g; # and also 0 and O
2592: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2593: if ($existing{$newkey}) {
2594: $i--;
2595: } else {
1.364 www 2596: if (&put('accesskeys',
2597: { $newkey => '# generated '.localtime().
1.620 albertel 2598: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2599: '; '.$logentry },
2600: $cdom,$cnum) eq 'ok') {
1.344 www 2601: $total++;
2602: }
2603: }
2604: }
1.620 albertel 2605: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2606: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2607: return $total;
2608: }
2609:
2610: # ------------------------------------------------------- Validate an accesskey
2611:
2612: sub validate_access_key {
2613: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2614: $cdom=
1.620 albertel 2615: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2616: $cnum=
1.620 albertel 2617: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2618: $udom=$env{'user.domain'} unless (defined($udom));
2619: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2620: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2621: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2622: }
2623:
2624: # ------------------------------------- Find the section of student in a course
1.652 albertel 2625: sub devalidate_getsection_cache {
2626: my ($udom,$unam,$courseid)=@_;
2627: my $hashid="$udom:$unam:$courseid";
2628: &devalidate_cache_new('getsection',$hashid);
2629: }
1.298 matthew 2630:
1.815 albertel 2631: sub courseid_to_courseurl {
2632: my ($courseid) = @_;
2633: #already url style courseid
2634: return $courseid if ($courseid =~ m{^/});
2635:
2636: if (exists($env{'course.'.$courseid.'.num'})) {
2637: my $cnum = $env{'course.'.$courseid.'.num'};
2638: my $cdom = $env{'course.'.$courseid.'.domain'};
2639: return "/$cdom/$cnum";
2640: }
2641:
2642: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2643: if (exists($courseinfo{'num'})) {
2644: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2645: }
2646:
2647: return undef;
2648: }
2649:
1.298 matthew 2650: sub getsection {
2651: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2652: my $cachetime=1800;
1.551 albertel 2653:
2654: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2655: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2656: if (defined($cached)) { return $result; }
2657:
1.298 matthew 2658: my %Pending;
2659: my %Expired;
2660: #
2661: # Each role can either have not started yet (pending), be active,
2662: # or have expired.
2663: #
2664: # If there is an active role, we are done.
2665: #
2666: # If there is more than one role which has not started yet,
2667: # choose the one which will start sooner
2668: # If there is one role which has not started yet, return it.
2669: #
2670: # If there is more than one expired role, choose the one which ended last.
2671: # If there is a role which has expired, return it.
2672: #
1.815 albertel 2673: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2674: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2675: foreach my $key (keys(%roleshash)) {
1.479 albertel 2676: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2677: my $section=$1;
2678: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2679: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2680: my $now=time;
1.548 albertel 2681: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2682: $Expired{$end}=$section;
2683: next;
2684: }
1.548 albertel 2685: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2686: $Pending{$start}=$section;
2687: next;
2688: }
1.599 albertel 2689: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2690: }
2691: #
2692: # Presumedly there will be few matching roles from the above
2693: # loop and the sorting time will be negligible.
2694: if (scalar(keys(%Pending))) {
2695: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2696: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2697: }
2698: if (scalar(keys(%Expired))) {
2699: my @sorted = sort {$a <=> $b} keys(%Expired);
2700: my $time = pop(@sorted);
1.599 albertel 2701: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2702: }
1.599 albertel 2703: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2704: }
1.70 www 2705:
1.599 albertel 2706: sub save_cache {
2707: &purge_remembered();
1.722 albertel 2708: #&Apache::loncommon::validate_page();
1.620 albertel 2709: undef(%env);
1.780 albertel 2710: undef($env_loaded);
1.599 albertel 2711: }
1.452 albertel 2712:
1.599 albertel 2713: my $to_remember=-1;
2714: my %remembered;
2715: my %accessed;
2716: my $kicks=0;
2717: my $hits=0;
1.849 albertel 2718: sub make_key {
2719: my ($name,$id) = @_;
1.872 albertel 2720: if (length($id) > 65
2721: && length(&escape($id)) > 200) {
2722: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2723: }
1.849 albertel 2724: return &escape($name.':'.$id);
2725: }
2726:
1.599 albertel 2727: sub devalidate_cache_new {
2728: my ($name,$id,$debug) = @_;
2729: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.1172.2.81 raeburn 2730: my $remembered_id=$name.':'.$id;
1.849 albertel 2731: $id=&make_key($name,$id);
1.599 albertel 2732: $memcache->delete($id);
1.1172.2.81 raeburn 2733: delete($remembered{$remembered_id});
2734: delete($accessed{$remembered_id});
1.599 albertel 2735: }
2736:
2737: sub is_cached_new {
2738: my ($name,$id,$debug) = @_;
1.1172.2.81 raeburn 2739: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) for
2740: # keys in %remembered hash, which persists for
2741: # duration of request (no restriction on key length).
2742: if (exists($remembered{$remembered_id})) {
2743: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
2744: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2745: $hits++;
1.1172.2.81 raeburn 2746: return ($remembered{$remembered_id},1);
1.599 albertel 2747: }
1.1172.2.81 raeburn 2748: $id=&make_key($name,$id);
1.599 albertel 2749: my $value = $memcache->get($id);
2750: if (!(defined($value))) {
2751: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2752: return (undef,undef);
1.416 albertel 2753: }
1.599 albertel 2754: if ($value eq '__undef__') {
2755: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2756: $value=undef;
2757: }
1.1172.2.81 raeburn 2758: &make_room($remembered_id,$value,$debug);
1.599 albertel 2759: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2760: return ($value,1);
2761: }
2762:
2763: sub do_cache_new {
2764: my ($name,$id,$value,$time,$debug) = @_;
1.1172.2.81 raeburn 2765: my $remembered_id=$name.':'.$id;
1.849 albertel 2766: $id=&make_key($name,$id);
1.599 albertel 2767: my $setvalue=$value;
2768: if (!defined($setvalue)) {
2769: $setvalue='__undef__';
2770: }
1.623 albertel 2771: if (!defined($time) ) {
2772: $time=600;
2773: }
1.599 albertel 2774: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2775: my $result = $memcache->set($id,$setvalue,$time);
2776: if (! $result) {
1.872 albertel 2777: &logthis("caching of id -> $id failed");
1.910 albertel 2778: $memcache->disconnect_all();
1.872 albertel 2779: }
1.600 albertel 2780: # need to make a copy of $value
1.1172.2.81 raeburn 2781: &make_room($remembered_id,$value,$debug);
1.599 albertel 2782: return $value;
2783: }
2784:
2785: sub make_room {
1.1172.2.81 raeburn 2786: my ($remembered_id,$value,$debug)=@_;
1.919 albertel 2787:
1.1172.2.81 raeburn 2788: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)
1.919 albertel 2789: : $value;
1.599 albertel 2790: if ($to_remember<0) { return; }
1.1172.2.81 raeburn 2791: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2792: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2793: my $to_kick;
2794: my $max_time=0;
2795: foreach my $other (keys(%accessed)) {
2796: if (&tv_interval($accessed{$other}) > $max_time) {
2797: $to_kick=$other;
2798: $max_time=&tv_interval($accessed{$other});
2799: }
2800: }
2801: delete($remembered{$to_kick});
2802: delete($accessed{$to_kick});
2803: $kicks++;
2804: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2805: return;
2806: }
2807:
1.599 albertel 2808: sub purge_remembered {
1.604 albertel 2809: #&logthis("Tossing ".scalar(keys(%remembered)));
2810: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2811: undef(%remembered);
2812: undef(%accessed);
1.428 albertel 2813: }
1.70 www 2814: # ------------------------------------- Read an entry from a user's environment
2815:
2816: sub userenvironment {
2817: my ($udom,$unam,@what)=@_;
1.976 raeburn 2818: my $items;
2819: foreach my $item (@what) {
2820: $items.=&escape($item).'&';
2821: }
2822: $items=~s/\&$//;
1.70 www 2823: my %returnhash=();
1.1009 raeburn 2824: my $uhome = &homeserver($unam,$udom);
2825: unless ($uhome eq 'no_host') {
2826: my @answer=split(/\&/,
2827: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2828: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2829: return %returnhash;
2830: }
1.1009 raeburn 2831: my $i;
2832: for ($i=0;$i<=$#what;$i++) {
2833: $returnhash{$what[$i]}=&unescape($answer[$i]);
2834: }
1.70 www 2835: }
2836: return %returnhash;
1.1 albertel 2837: }
2838:
1.617 albertel 2839: # ---------------------------------------------------------- Get a studentphoto
2840: sub studentphoto {
2841: my ($udom,$unam,$ext) = @_;
2842: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2843: if (defined($env{'request.course.id'})) {
1.708 raeburn 2844: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2845: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2846: return(&retrievestudentphoto($udom,$unam,$ext));
2847: } else {
2848: my ($result,$perm_reqd)=
1.707 albertel 2849: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2850: if ($result eq 'ok') {
2851: if (!($perm_reqd eq 'yes')) {
2852: return(&retrievestudentphoto($udom,$unam,$ext));
2853: }
2854: }
2855: }
2856: }
2857: } else {
2858: my ($result,$perm_reqd) =
1.707 albertel 2859: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2860: if ($result eq 'ok') {
2861: if (!($perm_reqd eq 'yes')) {
2862: return(&retrievestudentphoto($udom,$unam,$ext));
2863: }
2864: }
2865: }
2866: return '/adm/lonKaputt/lonlogo_broken.gif';
2867: }
2868:
2869: sub retrievestudentphoto {
2870: my ($udom,$unam,$ext,$type) = @_;
2871: my $home=&Apache::lonnet::homeserver($unam,$udom);
2872: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2873: if ($ret eq 'ok') {
2874: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2875: if ($type eq 'thumbnail') {
2876: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2877: }
2878: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2879: return $tokenurl;
2880: } else {
2881: if ($type eq 'thumbnail') {
2882: return '/adm/lonKaputt/genericstudent_tn.gif';
2883: } else {
2884: return '/adm/lonKaputt/lonlogo_broken.gif';
2885: }
1.617 albertel 2886: }
2887: }
2888:
1.263 www 2889: # -------------------------------------------------------------------- New chat
2890:
2891: sub chatsend {
1.724 raeburn 2892: my ($newentry,$anon,$group)=@_;
1.620 albertel 2893: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2894: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2895: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2896: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2897: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2898: &escape($newentry)).':'.$group,$chome);
1.292 www 2899: }
2900:
2901: # ------------------------------------------ Find current version of a resource
2902:
2903: sub getversion {
2904: my $fname=&clutter(shift);
1.1172.2.10 raeburn 2905: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2906: return ¤tversion(&filelocation('',$fname));
2907: }
2908:
2909: sub currentversion {
2910: my $fname=shift;
2911: my $author=$fname;
2912: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2913: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2914: my $home=&homeserver($uname,$udom);
1.292 www 2915: if ($home eq 'no_host') {
2916: return -1;
2917: }
1.1112 www 2918: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2919: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2920: return -1;
2921: }
1.1112 www 2922: return $answer;
1.263 www 2923: }
2924:
1.1111 www 2925: #
2926: # Return special version number of resource if set by override, empty otherwise
2927: #
2928: sub usedversion {
2929: my $fname=shift;
2930: unless ($fname) { $fname=$env{'request.uri'}; }
2931: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2932: if ($urlversion) { return $urlversion; }
2933: return '';
2934: }
2935:
1.1 albertel 2936: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2937:
1.1 albertel 2938: sub subscribe {
2939: my $fname=shift;
1.761 raeburn 2940: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2941: $fname=~s/[\n\r]//g;
1.1 albertel 2942: my $author=$fname;
2943: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2944: my ($udom,$uname)=split(/\//,$author);
2945: my $home=homeserver($uname,$udom);
1.335 albertel 2946: if ($home eq 'no_host') {
2947: return 'not_found';
1.1 albertel 2948: }
2949: my $answer=reply("sub:$fname",$home);
1.64 www 2950: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2951: $answer.=' by '.$home;
2952: }
1.1 albertel 2953: return $answer;
2954: }
2955:
1.8 www 2956: # -------------------------------------------------------------- Replicate file
2957:
2958: sub repcopy {
2959: my $filename=shift;
1.23 www 2960: $filename=~s/\/+/\//g;
1.1142 raeburn 2961: my $londocroot = $perlvar{'lonDocRoot'};
2962: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2963: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2964: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2965: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2966: return &repcopy_userfile($filename);
2967: }
1.532 albertel 2968: $filename=~s/[\n\r]//g;
1.8 www 2969: my $transname="$filename.in.transfer";
1.828 www 2970: # FIXME: this should flock
1.607 raeburn 2971: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2972: my $remoteurl=subscribe($filename);
1.64 www 2973: if ($remoteurl =~ /^con_lost by/) {
2974: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2975: return 'unavailable';
1.8 www 2976: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2977: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2978: return 'not_found';
1.64 www 2979: } elsif ($remoteurl =~ /^rejected by/) {
2980: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2981: return 'forbidden';
1.20 www 2982: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2983: return 'ok';
1.8 www 2984: } else {
1.290 www 2985: my $author=$filename;
2986: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2987: my ($udom,$uname)=split(/\//,$author);
2988: my $home=homeserver($uname,$udom);
2989: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2990: my @parts=split(/\//,$filename);
2991: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2992: if ($path ne "$londocroot/res") {
1.8 www 2993: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2994: return 'bad_request';
1.8 www 2995: }
2996: my $count;
2997: for ($count=5;$count<$#parts;$count++) {
2998: $path.="/$parts[$count]";
2999: if ((-e $path)!=1) {
3000: mkdir($path,0777);
3001: }
3002: }
3003: my $ua=new LWP::UserAgent;
3004: my $request=new HTTP::Request('GET',"$remoteurl");
3005: my $response=$ua->request($request,$transname);
3006: if ($response->is_error()) {
3007: unlink($transname);
3008: my $message=$response->status_line;
1.672 albertel 3009: &logthis("<font color=\"blue\">WARNING:"
1.12 www 3010: ." LWP get: $message: $filename</font>");
1.607 raeburn 3011: return 'unavailable';
1.8 www 3012: } else {
1.16 www 3013: if ($remoteurl!~/\.meta$/) {
3014: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
3015: my $mresponse=$ua->request($mrequest,$filename.'.meta');
3016: if ($mresponse->is_error()) {
3017: unlink($filename.'.meta');
3018: &logthis(
1.672 albertel 3019: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 3020: }
3021: }
1.8 www 3022: rename($transname,$filename);
1.607 raeburn 3023: return 'ok';
1.8 www 3024: }
1.290 www 3025: }
1.8 www 3026: }
1.330 www 3027: }
3028:
3029: # ------------------------------------------------ Get server side include body
3030: sub ssi_body {
1.381 albertel 3031: my ($filelink,%form)=@_;
1.606 matthew 3032: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
3033: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
3034: }
1.953 www 3035: my $output='';
3036: my $response;
1.980 raeburn 3037: if ($filelink=~/^https?\:/) {
1.954 raeburn 3038: ($output,$response)=&externalssi($filelink);
1.953 www 3039: } else {
1.1004 droeschl 3040: $filelink .= $filelink=~/\?/ ? '&' : '?';
3041: $filelink .= 'inhibitmenu=yes';
1.953 www 3042: ($output,$response)=&ssi($filelink,%form);
3043: }
1.778 albertel 3044: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 3045: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 3046: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 3047: if (wantarray) {
3048: return ($output, $response);
3049: } else {
3050: return $output;
3051: }
1.8 www 3052: }
3053:
1.15 www 3054: # --------------------------------------------------------- Server Side Include
3055:
1.782 albertel 3056: sub absolute_url {
3057: my ($host_name) = @_;
3058: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
3059: if ($host_name eq '') {
3060: $host_name = $ENV{'SERVER_NAME'};
3061: }
3062: return $protocol.$host_name;
3063: }
3064:
1.942 foxr 3065: #
3066: # Server side include.
3067: # Parameters:
3068: # fn Possibly encrypted resource name/id.
3069: # form Hash that describes how the rendering should be done
3070: # and other things.
1.944 foxr 3071: # Returns:
1.950 raeburn 3072: # Scalar context: The content of the response.
3073: # Array context: 2 element list of the content and the full response object.
1.942 foxr 3074: #
1.15 www 3075: sub ssi {
3076:
1.944 foxr 3077: my ($fn,%form)=@_;
1.1172.2.100 raeburn 3078: my ($request,$response);
1.711 albertel 3079:
3080: $form{'no_update_last_known'}=1;
1.895 albertel 3081: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 3082: if (%form) {
1.782 albertel 3083: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1172.2.58 raeburn 3084: $request->content(join('&',map {
3085: my $name = escape($_);
3086: "$name=" . ( ref($form{$_}) eq 'ARRAY'
3087: ? join("&$name=", map {escape($_) } @{$form{$_}})
3088: : &escape($form{$_}) );
3089: } keys(%form)));
1.23 www 3090: } else {
1.782 albertel 3091: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 3092: }
3093:
1.15 www 3094: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1172.2.100 raeburn 3095:
1.1172.2.101 raeburn 3096: if (($env{'request.course.id'}) &&
3097: ($form{'grade_courseid'} eq $env{'request.course.id'}) &&
3098: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
3099: ($form{'grade_symb'} ne '') &&
3100: (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
3101: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
1.1172.2.100 raeburn 3102: if (LWP::UserAgent->VERSION >= 5.834) {
3103: my $ua=new LWP::UserAgent;
3104: $ua->local_address('127.0.0.1');
3105: $response = $ua->request($request);
3106: } else {
3107: {
3108: require LWP::Protocol::http;
3109: local @LWP::Protocol::http::EXTRA_SOCK_OPTS = (LocalAddr => '127.0.0.1');
3110: my $ua=new LWP::UserAgent;
3111: $response = $ua->request($request);
3112: @LWP::Protocol::http::EXTRA_SOCK_OPTS = ();
3113: }
3114: }
3115: } else {
3116: my $ua=new LWP::UserAgent;
3117: $response = $ua->request($request);
3118: }
1.944 foxr 3119: if (wantarray) {
1.1172.2.3 raeburn 3120: return ($response->content, $response);
1.944 foxr 3121: } else {
1.1172.2.3 raeburn 3122: return $response->content;
1.942 foxr 3123: }
1.324 www 3124: }
3125:
3126: sub externalssi {
3127: my ($url)=@_;
3128: my $ua=new LWP::UserAgent;
3129: my $request=new HTTP::Request('GET',$url);
3130: my $response=$ua->request($request);
1.954 raeburn 3131: if (wantarray) {
3132: return ($response->content, $response);
3133: } else {
3134: return $response->content;
3135: }
1.15 www 3136: }
1.254 www 3137:
1.1172.2.98 raeburn 3138: # If the local copy of a replicated resource is outdated, trigger a
3139: # connection from the homeserver to flush the delayed queue. If no update
3140: # happens, remove local copies of outdated resource (and corresponding
3141: # metadata file).
3142:
3143: sub remove_stale_resfile {
3144: my ($url) = @_;
3145: my $removed;
3146: if ($url=~m{^/res/($match_domain)/($match_username)/}) {
3147: my $audom = $1;
3148: my $auname = $2;
3149: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) {
3150: my $homeserver = &homeserver($auname,$audom);
3151: unless (($homeserver eq 'no_host') ||
3152: (grep { $_ eq $homeserver } ¤t_machine_ids())) {
3153: my $fname = &filelocation('',$url);
3154: if (-e $fname) {
3155: my $ua=new LWP::UserAgent;
3156: $ua->timeout(5);
3157: my $protocol = $protocol{$homeserver};
3158: $protocol = 'http' if ($protocol ne 'https');
3159: my $hostname = &hostname($homeserver);
3160: if ($hostname) {
3161: my $uri = $protocol.'://'.$hostname.'/raw/'.&declutter($url);
3162: my $request=new HTTP::Request('HEAD',$uri);
3163: my $response=$ua->request($request);
3164: if ($response->is_success()) {
3165: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
3166: my $locmodtime = (stat($fname))[9];
3167: if ($locmodtime < $remmodtime) {
3168: my $stale;
3169: my $answer = &reply('pong',$homeserver);
3170: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
3171: sleep(0.2);
3172: $locmodtime = (stat($fname))[9];
3173: if ($locmodtime < $remmodtime) {
3174: my $posstransfer = $fname.'.in.transfer';
3175: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
3176: $removed = 1;
3177: } else {
3178: $stale = 1;
3179: }
3180: } else {
3181: $removed = 1;
3182: }
3183: } else {
3184: $stale = 1;
3185: }
3186: if ($stale) {
3187: unlink($fname);
3188: if ($uri!~/\.meta$/) {
3189: unlink($fname.'.meta');
3190: }
3191: &reply("unsub:$fname",$homeserver);
3192: $removed = 1;
3193: }
3194: }
3195: }
3196: }
3197: }
3198: }
3199: }
3200: }
3201: return $removed;
3202: }
3203:
1.492 albertel 3204: # -------------------------------- Allow a /uploaded/ URI to be vouched for
3205:
3206: sub allowuploaded {
3207: my ($srcurl,$url)=@_;
3208: $url=&clutter(&declutter($url));
3209: my $dir=$url;
3210: $dir=~s/\/[^\/]+$//;
3211: my %httpref=();
3212: my $httpurl=&hreflocation('',$url);
3213: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 3214: &Apache::lonnet::appenv(\%httpref);
1.254 www 3215: }
1.477 raeburn 3216:
1.1172.2.13 raeburn 3217: #
3218: # Determine if the current user should be able to edit a particular resource,
3219: # when viewing in course context.
3220: # (a) When viewing resource used to determine if "Edit" item is included in
3221: # Functions.
3222: # (b) When displaying folder contents in course editor, used to determine if
3223: # "Edit" link will be displayed alongside resource.
3224: #
3225: # input: six args -- filename (decluttered), course number, course domain,
3226: # url, symb (if registered) and group (if this is a group
3227: # item -- e.g., bulletin board, group page etc.).
3228: # output: array of five scalars --
3229: # $cfile -- url for file editing if editable on current server
3230: # $home -- homeserver of resource (i.e., for author if published,
3231: # or course if uploaded.).
3232: # $switchserver -- 1 if server switch will be needed.
3233: # $forceedit -- 1 if icon/link should be to go to edit mode
3234: # $forceview -- 1 if icon/link should be to go to view mode
3235: #
3236:
3237: sub can_edit_resource {
3238: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
3239: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
3240: #
3241: # For aboutme pages user can only edit his/her own.
3242: #
3243: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
3244: my ($sdom,$sname) = ($1,$2);
3245: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
3246: $home = $env{'user.home'};
3247: $cfile = $resurl;
3248: if ($env{'form.forceedit'}) {
3249: $forceview = 1;
3250: } else {
3251: $forceedit = 1;
3252: }
3253: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3254: } else {
3255: return;
3256: }
3257: }
3258:
3259: if ($env{'request.course.id'}) {
3260: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
3261: if ($group ne '') {
3262: # if this is a group homepage or group bulletin board, check group privs
3263: my $allowed = 0;
3264: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
3265: if ((&allowed('mdg',$env{'request.course.id'}.
3266: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3267: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3268: $allowed = 1;
3269: }
3270: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
3271: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3272: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3273: $allowed = 1;
3274: }
3275: }
3276: if ($allowed) {
3277: $home=&homeserver($cnum,$cdom);
3278: if ($env{'form.forceedit'}) {
3279: $forceview = 1;
3280: } else {
3281: $forceedit = 1;
3282: }
3283: $cfile = $resurl;
3284: } else {
3285: return;
3286: }
3287: } else {
1.1172.2.15 raeburn 3288: if ($resurl =~ m{^/?adm/viewclasslist$}) {
3289: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
3290: return;
3291: }
3292: } elsif (!$crsedit) {
1.1172.2.13 raeburn 3293: #
3294: # No edit allowed where CC has switched to student role.
3295: #
3296: return;
3297: }
3298: }
3299: }
3300:
3301: if ($file ne '') {
3302: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
3303: if (&is_course_upload($file,$cnum,$cdom)) {
3304: $uploaded = 1;
3305: $incourse = 1;
3306: if ($file =~/\.(htm|html|css|js|txt)$/) {
3307: $cfile = &hreflocation('',$file);
3308: if ($env{'form.forceedit'}) {
3309: $forceview = 1;
3310: } else {
3311: $forceedit = 1;
3312: }
3313: }
3314: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
3315: $incourse = 1;
3316: if ($env{'form.forceedit'}) {
3317: $forceview = 1;
3318: } else {
3319: $forceedit = 1;
3320: }
3321: $cfile = $resurl;
3322: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
3323: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
3324: $incourse = 1;
3325: if ($env{'form.forceedit'}) {
3326: $forceview = 1;
3327: } else {
3328: $forceedit = 1;
3329: }
3330: $cfile = $resurl;
3331: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
3332: $incourse = 1;
3333: $cfile = $resurl.'/smpedit';
3334: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
3335: $incourse = 1;
3336: if ($env{'form.forceedit'}) {
3337: $forceview = 1;
3338: } else {
3339: $forceedit = 1;
3340: }
3341: $cfile = $resurl;
1.1172.2.15 raeburn 3342: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3343: $incourse = 1;
3344: if ($env{'form.forceedit'}) {
3345: $forceview = 1;
3346: } else {
3347: $forceedit = 1;
3348: }
3349: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1172.2.13 raeburn 3350: }
3351: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
3352: my $template = '/res/lib/templates/simpleproblem.problem';
3353: if (&is_on_map($template)) {
3354: $incourse = 1;
3355: $forceview = 1;
3356: $cfile = $template;
3357: }
3358: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
3359: $incourse = 1;
3360: if ($env{'form.forceedit'}) {
3361: $forceview = 1;
3362: } else {
3363: $forceedit = 1;
3364: }
3365: $cfile = $resurl;
3366: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
3367: $incourse = 1;
3368: $forceview = 1;
3369: if ($symb) {
3370: my ($map,$id,$res)=&decode_symb($symb);
3371: $env{'request.symb'} = $symb;
3372: $cfile = &clutter($res);
3373: } else {
3374: $cfile = $env{'form.suppurl'};
3375: $cfile =~ s{^http://}{};
3376: $cfile = '/adm/wrapper/ext/'.$cfile;
3377: }
1.1172.2.31 raeburn 3378: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3379: if ($env{'form.forceedit'}) {
3380: $forceview = 1;
3381: } else {
3382: $forceedit = 1;
3383: }
3384: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1172.2.13 raeburn 3385: }
3386: }
3387: if ($uploaded || $incourse) {
3388: $home=&homeserver($cnum,$cdom);
1.1172.2.14 raeburn 3389: } elsif ($file !~ m{/$}) {
1.1172.2.13 raeburn 3390: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
3391: $file=~s{^($match_domain/$match_username)}{/priv/$1};
3392: # Check that the user has permission to edit this resource
3393: my $setpriv = 1;
3394: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
3395: if (defined($cfudom)) {
3396: $home=&homeserver($cfuname,$cfudom);
3397: $cfile=$file;
3398: }
3399: }
3400: if (($cfile ne '') && (!$incourse || $uploaded) &&
3401: (($home ne '') && ($home ne 'no_host'))) {
3402: my @ids=¤t_machine_ids();
3403: unless (grep(/^\Q$home\E$/,@ids)) {
3404: $switchserver=1;
3405: }
3406: }
3407: }
3408: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3409: }
3410:
3411: sub is_course_upload {
3412: my ($file,$cnum,$cdom) = @_;
3413: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
3414: $uploadpath =~ s{^\/}{};
3415: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
3416: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
3417: return 1;
3418: }
3419: return;
3420: }
3421:
3422: sub in_course {
3423: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
3424: if ($hideprivileged) {
3425: my $skipuser;
1.1172.2.23 raeburn 3426: my %coursehash = &coursedescription($cdom.'_'.$cnum);
3427: my @possdoms = ($cdom);
3428: if ($coursehash{'checkforpriv'}) {
3429: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
3430: }
3431: if (&privileged($uname,$udom,\@possdoms)) {
1.1172.2.13 raeburn 3432: $skipuser = 1;
3433: if ($coursehash{'nothideprivileged'}) {
3434: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3435: my $user;
3436: if ($item =~ /:/) {
3437: $user = $item;
3438: } else {
3439: $user = join(':',split(/[\@]/,$item));
3440: }
3441: if ($user eq $uname.':'.$udom) {
3442: undef($skipuser);
3443: last;
3444: }
3445: }
3446: }
3447: if ($skipuser) {
3448: return 0;
3449: }
3450: }
3451: }
3452: $type ||= 'any';
3453: if (!defined($cdom) || !defined($cnum)) {
3454: my $cid = $env{'request.course.id'};
3455: $cdom = $env{'course.'.$cid.'.domain'};
3456: $cnum = $env{'course.'.$cid.'.num'};
3457: }
3458: my $typesref;
3459: if (($type eq 'any') || ($type eq 'all')) {
3460: $typesref = ['active','previous','future'];
3461: } elsif ($type eq 'previous' || $type eq 'future') {
3462: $typesref = [$type];
3463: }
3464: my %roles = &get_my_roles($uname,$udom,'userroles',
3465: $typesref,undef,[$cdom]);
3466: my ($tmp) = keys(%roles);
3467: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
3468: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
3469: if (@course_roles > 0) {
3470: return 1;
3471: }
3472: return 0;
3473: }
3474:
1.478 albertel 3475: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 3476: # input: action, courseID, current domain, intended
1.637 raeburn 3477: # path to file, source of file, instruction to parse file for objects,
3478: # ref to hash for embedded objects,
3479: # ref to hash for codebase of java objects.
1.1095 raeburn 3480: # reference to scalar to accommodate mime type determined
3481: # from File::MMagic if $parser = parse.
1.637 raeburn 3482: #
1.485 raeburn 3483: # output: url to file (if action was uploaddoc),
3484: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 3485: #
1.478 albertel 3486: # Allows directory structure to be used within lonUsers/../userfiles/ for a
3487: # course.
1.477 raeburn 3488: #
1.478 albertel 3489: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3490: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
3491: # course's home server.
1.477 raeburn 3492: #
1.478 albertel 3493: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
3494: # be copied from $source (current location) to
3495: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3496: # and will then be copied to
3497: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
3498: # course's home server.
1.485 raeburn 3499: #
1.481 raeburn 3500: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 3501: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 3502: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3503: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
3504: # in course's home server.
1.637 raeburn 3505: #
1.477 raeburn 3506:
3507: sub process_coursefile {
1.1095 raeburn 3508: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
3509: $mimetype)=@_;
1.477 raeburn 3510: my $fetchresult;
1.638 albertel 3511: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 3512: if ($action eq 'propagate') {
1.638 albertel 3513: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
3514: $home);
1.481 raeburn 3515: } else {
1.477 raeburn 3516: my $fpath = '';
3517: my $fname = $file;
1.478 albertel 3518: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 3519: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 3520: my $filepath = &build_filepath($fpath);
1.481 raeburn 3521: if ($action eq 'copy') {
3522: if ($source eq '') {
3523: $fetchresult = 'no source file';
3524: return $fetchresult;
3525: } else {
3526: my $destination = $filepath.'/'.$fname;
3527: rename($source,$destination);
3528: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3529: $home);
1.481 raeburn 3530: }
3531: } elsif ($action eq 'uploaddoc') {
1.1172.2.96 raeburn 3532: open(my $fh,'>',$filepath.'/'.$fname);
1.620 albertel 3533: print $fh $env{'form.'.$source};
1.481 raeburn 3534: close($fh);
1.637 raeburn 3535: if ($parser eq 'parse') {
1.1024 raeburn 3536: my $mm = new File::MMagic;
1.1095 raeburn 3537: my $type = $mm->checktype_filename($filepath.'/'.$fname);
3538: if ($type eq 'text/html') {
1.1024 raeburn 3539: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
3540: unless ($parse_result eq 'ok') {
3541: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
3542: }
1.637 raeburn 3543: }
1.1095 raeburn 3544: if (ref($mimetype)) {
3545: $$mimetype = $type;
3546: }
1.637 raeburn 3547: }
1.477 raeburn 3548: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3549: $home);
1.481 raeburn 3550: if ($fetchresult eq 'ok') {
3551: return '/uploaded/'.$fpath.'/'.$fname;
3552: } else {
3553: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3554: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 3555: return '/adm/notfound.html';
3556: }
1.477 raeburn 3557: }
3558: }
1.485 raeburn 3559: unless ( $fetchresult eq 'ok') {
1.477 raeburn 3560: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3561: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 3562: }
3563: return $fetchresult;
3564: }
3565:
1.637 raeburn 3566: sub build_filepath {
3567: my ($fpath) = @_;
3568: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
3569: unless ($fpath eq '') {
3570: my @parts=split('/',$fpath);
3571: foreach my $part (@parts) {
3572: $filepath.= '/'.$part;
3573: if ((-e $filepath)!=1) {
3574: mkdir($filepath,0777);
3575: }
3576: }
3577: }
3578: return $filepath;
3579: }
3580:
3581: sub store_edited_file {
1.638 albertel 3582: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 3583: my $file = $primary_url;
3584: $file =~ s#^/uploaded/$docudom/$docuname/##;
3585: my $fpath = '';
3586: my $fname = $file;
3587: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3588: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3589: my $filepath = &build_filepath($fpath);
1.1172.2.96 raeburn 3590: open(my $fh,'>',$filepath.'/'.$fname);
1.637 raeburn 3591: print $fh $content;
3592: close($fh);
1.638 albertel 3593: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3594: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3595: $home);
1.637 raeburn 3596: if ($$fetchresult eq 'ok') {
3597: return '/uploaded/'.$fpath.'/'.$fname;
3598: } else {
1.638 albertel 3599: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3600: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3601: return '/adm/notfound.html';
3602: }
3603: }
3604:
1.531 albertel 3605: sub clean_filename {
1.831 albertel 3606: my ($fname,$args)=@_;
1.315 www 3607: # Replace Windows backslashes by forward slashes
1.257 www 3608: $fname=~s/\\/\//g;
1.831 albertel 3609: if (!$args->{'keep_path'}) {
3610: # Get rid of everything but the actual filename
3611: $fname=~s/^.*\/([^\/]+)$/$1/;
3612: }
1.315 www 3613: # Replace spaces by underscores
3614: $fname=~s/\s+/\_/g;
1.1172.2.110 raeburn 3615: # Transliterate non-ascii text to ascii
3616: my $lang = &Apache::lonlocal::current_language();
3617: $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang);
1.315 www 3618: # Replace all other weird characters by nothing
1.831 albertel 3619: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3620: # Replace all .\d. sequences with _\d. so they no longer look like version
3621: # numbers
3622: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3623: return $fname;
3624: }
1.1172.2.110 raeburn 3625:
1.1051 raeburn 3626: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3627: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3628: # image with the same aspect ratio as the original, but with dimensions which do
3629: # not exceed $resizewidth and $resizeheight.
3630:
1.984 neumanie 3631: sub resizeImage {
1.1051 raeburn 3632: my ($img_path,$resizewidth,$resizeheight) = @_;
3633: my $ima = Image::Magick->new;
3634: my $resized;
3635: if (-e $img_path) {
3636: $ima->Read($img_path);
3637: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3638: my $width = $ima->Get('width');
3639: my $height = $ima->Get('height');
3640: if ($width > $resizewidth) {
3641: my $factor = $width/$resizewidth;
3642: my $newheight = $height/$factor;
3643: $ima->Scale(width=>$resizewidth,height=>$newheight);
3644: $resized = 1;
3645: }
3646: }
3647: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3648: my $width = $ima->Get('width');
3649: my $height = $ima->Get('height');
3650: if ($height > $resizeheight) {
3651: my $factor = $height/$resizeheight;
3652: my $newwidth = $width/$factor;
3653: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3654: $resized = 1;
3655: }
3656: }
3657: if ($resized) {
3658: $ima->Write($img_path);
3659: }
3660: }
3661: return;
1.977 amueller 3662: }
3663:
1.608 albertel 3664: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3665: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3666: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3667: # $context - possible values: coursedoc, existingfile, overwrite,
1.1172.2.109 raeburn 3668: # canceloverwrite, scantron or ''.
1.1090 raeburn 3669: # if 'coursedoc': upload to the current course
3670: # if 'existingfile': write file to tmp/overwrites directory
3671: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3672: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3673: # $subdir - directory in userfile to store the file into
1.1172.2.109 raeburn 3674: # $parser - instruction to parse file for objects ($parser = parse) or
3675: # if context is 'scantron', $parser is hashref of csv column mapping
3676: # (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
3677: # Section => 4, CODE => 5, FirstQuestion => 9 }).
1.858 raeburn 3678: # $allfiles - reference to hash for embedded objects
3679: # $codebase - reference to hash for codebase of java objects
3680: # $desuname - username for permanent storage of uploaded file
3681: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3682: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3683: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3684: # $resizewidth - width (pixels) to which to resize uploaded image
3685: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3686: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3687: # from File::MMagic.
1.858 raeburn 3688: #
1.686 albertel 3689: # output: url of file in userspace, or error: <message>
3690: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3691:
1.531 albertel 3692: sub userfileupload {
1.1090 raeburn 3693: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3694: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3695: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3696: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3697: $fname=&clean_filename($fname);
1.1090 raeburn 3698: # See if there is anything left
1.257 www 3699: unless ($fname) { return 'error: no uploaded file'; }
1.1172.2.110 raeburn 3700: # If filename now begins with a . prepend unix timestamp _ milliseconds
3701: if ($fname =~ /^\./) {
3702: my ($s,$usec) = &gettimeofday();
3703: while (length($usec) < 6) {
3704: $usec = '0'.$usec;
3705: }
3706: $fname = $s.'_'.substr($usec,0,3).$fname;
3707: }
1.1090 raeburn 3708: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3709: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3710: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3711: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3712: my $now = time;
1.1090 raeburn 3713: my $filepath;
1.1095 raeburn 3714: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3715: $filepath = 'tmp/helprequests/'.$now;
3716: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3717: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3718: '_'.$env{'user.domain'}.'/pending';
3719: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3720: my ($docuname,$docudom);
1.1172.2.96 raeburn 3721: if ($destudom =~ /^$match_domain$/) {
1.1090 raeburn 3722: $docudom = $destudom;
3723: } else {
3724: $docudom = $env{'user.domain'};
3725: }
1.1172.2.96 raeburn 3726: if ($destuname =~ /^$match_username$/) {
1.1090 raeburn 3727: $docuname = $destuname;
3728: } else {
3729: $docuname = $env{'user.name'};
3730: }
3731: if (exists($env{'form.group'})) {
3732: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3733: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3734: }
3735: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3736: if ($context eq 'canceloverwrite') {
3737: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3738: if (-e $tempfile) {
3739: my @info = stat($tempfile);
3740: if ($info[9] eq $env{'form.timestamp'}) {
3741: unlink($tempfile);
3742: }
3743: }
3744: return;
1.523 raeburn 3745: }
3746: }
1.1090 raeburn 3747: # Create the directory if not present
1.741 raeburn 3748: my @parts=split(/\//,$filepath);
3749: my $fullpath = $perlvar{'lonDaemons'};
3750: for (my $i=0;$i<@parts;$i++) {
3751: $fullpath .= '/'.$parts[$i];
3752: if ((-e $fullpath)!=1) {
3753: mkdir($fullpath,0777);
3754: }
3755: }
1.1172.2.96 raeburn 3756: open(my $fh,'>',$fullpath.'/'.$fname);
1.741 raeburn 3757: print $fh $env{'form.'.$formname};
3758: close($fh);
1.1090 raeburn 3759: if ($context eq 'existingfile') {
3760: my @info = stat($fullpath.'/'.$fname);
3761: return ($fullpath.'/'.$fname,$info[9]);
3762: } else {
3763: return $fullpath.'/'.$fname;
3764: }
1.523 raeburn 3765: }
1.995 raeburn 3766: if ($subdir eq 'scantron') {
3767: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3768: } else {
1.995 raeburn 3769: $fname="$subdir/$fname";
3770: }
1.1090 raeburn 3771: if ($context eq 'coursedoc') {
1.638 albertel 3772: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3773: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3774: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3775: return &finishuserfileupload($docuname,$docudom,
3776: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3777: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3778: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3779: } else {
1.1172.2.21 raeburn 3780: if ($env{'form.folder'}) {
3781: $fname=$env{'form.folder'}.'/'.$fname;
3782: }
1.638 albertel 3783: return &process_coursefile('uploaddoc',$docuname,$docudom,
3784: $fname,$formname,$parser,
1.1095 raeburn 3785: $allfiles,$codebase,$mimetype);
1.481 raeburn 3786: }
1.719 banghart 3787: } elsif (defined($destuname)) {
3788: my $docuname=$destuname;
3789: my $docudom=$destudom;
1.860 raeburn 3790: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3791: $parser,$allfiles,$codebase,
1.1051 raeburn 3792: $thumbwidth,$thumbheight,
1.1095 raeburn 3793: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3794: } else {
1.638 albertel 3795: my $docuname=$env{'user.name'};
3796: my $docudom=$env{'user.domain'};
1.1172.2.23 raeburn 3797: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
1.714 raeburn 3798: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3799: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3800: }
1.860 raeburn 3801: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3802: $parser,$allfiles,$codebase,
1.1051 raeburn 3803: $thumbwidth,$thumbheight,
1.1095 raeburn 3804: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3805: }
1.271 www 3806: }
3807:
3808: sub finishuserfileupload {
1.860 raeburn 3809: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3810: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3811: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3812: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3813:
1.860 raeburn 3814: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3815: $file=$fname;
3816: if ($fname=~m|/|) {
3817: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3818: $path.=$fnamepath.'/';
3819: }
1.259 www 3820: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3821: my $count;
3822: for ($count=4;$count<=$#parts;$count++) {
3823: $filepath.="/$parts[$count]";
3824: if ((-e $filepath)!=1) {
3825: mkdir($filepath,0777);
3826: }
3827: }
1.984 neumanie 3828:
1.258 www 3829: # Save the file
3830: {
1.1172.2.96 raeburn 3831: if (!open(FH,'>',$filepath.'/'.$file)) {
1.701 albertel 3832: &logthis('Failed to create '.$filepath.'/'.$file);
3833: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3834: return '/adm/notfound.html';
3835: }
1.1090 raeburn 3836: if ($context eq 'overwrite') {
1.1117 foxr 3837: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3838: my $target = $filepath.'/'.$file;
3839: if (-e $source) {
3840: my @info = stat($source);
3841: if ($info[9] eq $env{'form.timestamp'}) {
3842: unless (&File::Copy::move($source,$target)) {
3843: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3844: return "Moving from $source failed";
3845: }
3846: } else {
3847: return "Temporary file: $source had unexpected date/time for last modification";
3848: }
3849: } else {
3850: return "Temporary file: $source missing";
3851: }
3852: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3853: &logthis('Failed to write to '.$filepath.'/'.$file);
3854: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3855: return '/adm/notfound.html';
3856: }
1.570 albertel 3857: close(FH);
1.1051 raeburn 3858: if ($resizewidth && $resizeheight) {
3859: my $mm = new File::MMagic;
3860: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3861: if ($mime_type =~ m{^image/}) {
3862: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3863: }
1.977 amueller 3864: }
1.258 www 3865: }
1.1152 raeburn 3866: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3867: if (ref($mimetype)) {
3868: if ($$mimetype eq '') {
3869: my $mm = new File::MMagic;
3870: my $type = $mm->checktype_filename($filepath.'/'.$file);
3871: $$mimetype = $type;
3872: }
3873: }
3874: }
1.1172.2.109 raeburn 3875: if (($context ne 'scantron') && ($parser eq 'parse')) {
1.1152 raeburn 3876: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3877: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3878: $allfiles,$codebase);
3879: unless ($parse_result eq 'ok') {
3880: &logthis('Failed to parse '.$filepath.$file.
3881: ' for embedded media: '.$parse_result);
3882: }
1.637 raeburn 3883: }
1.1172.2.109 raeburn 3884: } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) {
3885: my $format = $env{'form.scantron_format'};
3886: &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format);
1.637 raeburn 3887: }
1.860 raeburn 3888: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3889: my $input = $filepath.'/'.$file;
3890: my $output = $filepath.'/'.'tn-'.$file;
3891: my $thumbsize = $thumbwidth.'x'.$thumbheight;
1.1172.2.96 raeburn 3892: my @args = ('convert','-sample',$thumbsize,$input,$output);
3893: system({$args[0]} @args);
1.860 raeburn 3894: if (-e $filepath.'/'.'tn-'.$file) {
3895: $fetchthumb = 1;
3896: }
3897: }
1.858 raeburn 3898:
1.259 www 3899: # Notify homeserver to grep it
3900: #
1.984 neumanie 3901: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3902: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3903: if ($fetchresult eq 'ok') {
1.860 raeburn 3904: if ($fetchthumb) {
3905: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3906: if ($thumbresult ne 'ok') {
3907: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3908: $docuhome.': '.$thumbresult);
3909: }
3910: }
1.259 www 3911: #
1.258 www 3912: # Return the URL to it
1.494 albertel 3913: return '/uploaded/'.$path.$file;
1.263 www 3914: } else {
1.494 albertel 3915: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3916: ': '.$fetchresult);
1.263 www 3917: return '/adm/notfound.html';
1.858 raeburn 3918: }
1.493 albertel 3919: }
3920:
1.637 raeburn 3921: sub extract_embedded_items {
1.961 raeburn 3922: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3923: my @state = ();
1.1164 raeburn 3924: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3925: my %javafiles = (
3926: codebase => '',
3927: code => '',
3928: archive => ''
3929: );
3930: my %mediafiles = (
3931: src => '',
3932: movie => '',
3933: );
1.648 raeburn 3934: my $p;
3935: if ($content) {
3936: $p = HTML::LCParser->new($content);
3937: } else {
1.961 raeburn 3938: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3939: }
1.641 albertel 3940: while (my $t=$p->get_token()) {
1.640 albertel 3941: if ($t->[0] eq 'S') {
3942: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3943: push(@state, $tagname);
1.648 raeburn 3944: if (lc($tagname) eq 'allow') {
3945: &add_filetype($allfiles,$attr->{'src'},'src');
3946: }
1.640 albertel 3947: if (lc($tagname) eq 'img') {
3948: &add_filetype($allfiles,$attr->{'src'},'src');
3949: }
1.886 albertel 3950: if (lc($tagname) eq 'a') {
1.1172.2.24 raeburn 3951: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
3952: &add_filetype($allfiles,$attr->{'href'},'href');
3953: }
1.886 albertel 3954: }
1.645 raeburn 3955: if (lc($tagname) eq 'script') {
1.1164 raeburn 3956: my $src;
1.645 raeburn 3957: if ($attr->{'archive'} =~ /\.jar$/i) {
3958: &add_filetype($allfiles,$attr->{'archive'},'archive');
3959: } else {
1.1164 raeburn 3960: if ($attr->{'src'} ne '') {
3961: $src = $attr->{'src'};
3962: &add_filetype($allfiles,$src,'src');
3963: }
3964: }
3965: my $text = $p->get_trimmed_text();
3966: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3967: my @swfargs = split(/,/,$1);
3968: foreach my $item (@swfargs) {
3969: $item =~ s/["']//g;
3970: $item =~ s/^\s+//;
3971: $item =~ s/\s+$//;
3972: }
3973: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3974: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3975: push(@{$related{$swfargs[0]}},$swfargs[2]);
3976: } else {
3977: $related{$swfargs[0]} = [$swfargs[2]];
3978: }
3979: }
1.645 raeburn 3980: }
3981: }
3982: if (lc($tagname) eq 'link') {
3983: if (lc($attr->{'rel'}) eq 'stylesheet') {
3984: &add_filetype($allfiles,$attr->{'href'},'href');
3985: }
3986: }
1.640 albertel 3987: if (lc($tagname) eq 'object' ||
3988: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3989: foreach my $item (keys(%javafiles)) {
3990: $javafiles{$item} = '';
3991: }
1.1164 raeburn 3992: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3993: $lastids{lc($tagname)} = $attr->{'id'};
3994: }
1.640 albertel 3995: }
3996: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3997: my $name = lc($attr->{'name'});
3998: foreach my $item (keys(%javafiles)) {
3999: if ($name eq $item) {
4000: $javafiles{$item} = $attr->{'value'};
4001: last;
4002: }
4003: }
1.1164 raeburn 4004: my $pathfrom;
1.640 albertel 4005: foreach my $item (keys(%mediafiles)) {
4006: if ($name eq $item) {
1.1164 raeburn 4007: $pathfrom = $attr->{'value'};
4008: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
4009: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 4010: last;
4011: }
4012: }
1.1164 raeburn 4013: if ($name eq 'flashvars') {
4014: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
4015: }
4016: if ($pathfrom ne '') {
4017: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
4018: $pathfrom);
4019: }
1.640 albertel 4020: }
4021: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
4022: foreach my $item (keys(%javafiles)) {
4023: if ($attr->{$item}) {
4024: $javafiles{$item} = $attr->{$item};
4025: last;
4026: }
4027: }
4028: foreach my $item (keys(%mediafiles)) {
4029: if ($attr->{$item}) {
4030: &add_filetype($allfiles,$attr->{$item},$item);
4031: last;
4032: }
4033: }
1.1164 raeburn 4034: if (lc($tagname) eq 'embed') {
4035: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
4036: &embedded_dependency($allfiles,\%related,$attr->{'name'},
4037: $attr->{'src'});
4038: }
4039: }
1.640 albertel 4040: }
1.1172.2.35 raeburn 4041: if (lc($tagname) eq 'iframe') {
4042: my $src = $attr->{'src'} ;
4043: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
4044: &add_filetype($allfiles,$src,'src');
4045: } elsif ($src =~ m{^/}) {
4046: if ($env{'request.course.id'}) {
4047: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4048: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4049: my $url = &hreflocation('',$fullpath);
4050: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
4051: my $relpath = $1;
4052: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
4053: &add_filetype($allfiles,$1,'src');
4054: }
4055: }
4056: }
4057: }
4058: }
1.1164 raeburn 4059: if ($t->[4] =~ m{/>$}) {
1.1172.2.35 raeburn 4060: pop(@state);
1.1164 raeburn 4061: }
1.640 albertel 4062: } elsif ($t->[0] eq 'E') {
4063: my ($tagname) = ($t->[1]);
4064: if ($javafiles{'codebase'} ne '') {
4065: $javafiles{'codebase'} .= '/';
4066: }
4067: if (lc($tagname) eq 'applet' ||
4068: lc($tagname) eq 'object' ||
4069: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
4070: ) {
4071: foreach my $item (keys(%javafiles)) {
4072: if ($item ne 'codebase' && $javafiles{$item} ne '') {
4073: my $file=$javafiles{'codebase'}.$javafiles{$item};
4074: &add_filetype($allfiles,$file,$item);
4075: }
4076: }
4077: }
4078: pop @state;
4079: }
4080: }
1.1164 raeburn 4081: foreach my $id (sort(keys(%flashvars))) {
4082: if ($shockwave{$id} ne '') {
4083: my @pairs = split(/\&/,$flashvars{$id});
4084: foreach my $pair (@pairs) {
4085: my ($key,$value) = split(/\=/,$pair);
4086: if ($key eq 'thumb') {
4087: &add_filetype($allfiles,$value,$key);
4088: } elsif ($key eq 'content') {
4089: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
4090: my ($ext) = ($value =~ /\.([^.]+)$/);
4091: if ($ext ne '') {
4092: &add_filetype($allfiles,$path.$value,$ext);
4093: }
4094: }
4095: }
4096: }
4097: }
1.637 raeburn 4098: return 'ok';
4099: }
4100:
1.639 albertel 4101: sub add_filetype {
4102: my ($allfiles,$file,$type)=@_;
4103: if (exists($allfiles->{$file})) {
4104: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
4105: push(@{$allfiles->{$file}}, &escape($type));
4106: }
4107: } else {
4108: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 4109: }
4110: }
4111:
1.1164 raeburn 4112: sub embedded_dependency {
4113: my ($allfiles,$related,$identifier,$pathfrom) = @_;
4114: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
4115: if (($identifier ne '') &&
4116: (ref($related->{$identifier}) eq 'ARRAY') &&
4117: ($pathfrom ne '')) {
4118: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
4119: foreach my $dep (@{$related->{$identifier}}) {
4120: &add_filetype($allfiles,$path.$dep,'object');
4121: }
4122: }
4123: }
4124: return;
4125: }
4126:
1.1172.2.109 raeburn 4127: sub bubblesheet_converter {
4128: my ($cdom,$fullpath,$config,$format) = @_;
4129: if ((&domain($cdom) ne '') &&
4130: ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
4131: (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
4132: my (%csvcols,%csvoptions);
4133: if (ref($config->{'fields'}) eq 'HASH') {
4134: %csvcols = %{$config->{'fields'}};
4135: }
4136: if (ref($config->{'options'}) eq 'HASH') {
4137: %csvoptions = %{$config->{'options'}};
4138: }
4139: my %csvbynum = reverse(%csvcols);
4140: my %scantronconf = &get_scantron_config($format,$cdom);
4141: if (keys(%scantronconf)) {
4142: my %bynum = (
4143: $scantronconf{CODEstart} => 'CODEstart',
4144: $scantronconf{IDstart} => 'IDstart',
4145: $scantronconf{PaperID} => 'PaperID',
4146: $scantronconf{FirstName} => 'FirstName',
4147: $scantronconf{LastName} => 'LastName',
4148: $scantronconf{Qstart} => 'Qstart',
4149: );
4150: my @ordered;
4151: foreach my $item (sort { $a <=> $b } keys(%bynum)) {
4152: push(@ordered,$bynum{$item});
4153: }
4154: my %mapstart = (
4155: CODEstart => 'CODE',
4156: IDstart => 'ID',
4157: PaperID => 'PaperID',
4158: FirstName => 'FirstName',
4159: LastName => 'LastName',
4160: Qstart => 'FirstQuestion',
4161: );
4162: my %maplength = (
4163: CODEstart => 'CODElength',
4164: IDstart => 'IDlength',
4165: PaperID => 'PaperIDlength',
4166: FirstName => 'FirstNamelength',
4167: LastName => 'LastNamelength',
4168: );
4169: if (open(my $fh,'<',$fullpath)) {
4170: my $output;
4171: my %lettdig = &letter_to_digits();
4172: my %diglett = reverse(%lettdig);
4173: my $numletts = scalar(keys(%lettdig));
4174: my $num = 0;
4175: while (my $line=<$fh>) {
4176: $num ++;
4177: next if (($num == 1) && ($csvoptions{'hdr'} == 1));
4178: $line =~ s{[\r\n]+$}{};
4179: my %found;
4180: my @values = split(/,/,$line);
4181: my ($qstart,$record);
4182: for (my $i=0; $i<@values; $i++) {
4183: if ((($qstart ne '') && ($i > $qstart)) ||
4184: ($csvbynum{$i} eq 'FirstQuestion')) {
4185: if ($values[$i] eq '') {
4186: $values[$i] = $scantronconf{'Qoff'};
4187: } elsif ($scantronconf{'Qon'} eq 'number') {
4188: if ($values[$i] =~ /^[A-Ja-j]$/) {
4189: $values[$i] = $lettdig{uc($values[$i])};
4190: }
4191: } elsif ($scantronconf{'Qon'} eq 'letter') {
4192: if ($values[$i] =~ /^[0-9]$/) {
4193: $values[$i] = $diglett{$values[$i]};
4194: }
4195: } else {
4196: if ($values[$i] =~ /^[0-9A-Ja-j]$/) {
4197: my $digit;
4198: if ($values[$i] =~ /^[A-Ja-j]$/) {
4199: $digit = $lettdig{uc($values[$i])}-1;
4200: if ($values[$i] eq 'J') {
4201: $digit += $numletts;
4202: }
4203: } elsif ($values[$i] =~ /^[0-9]$/) {
4204: $digit = $values[$i]-1;
4205: if ($values[$i] eq '0') {
4206: $digit += $numletts;
4207: }
4208: }
4209: my $qval='';
4210: for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) {
4211: if ($j == $digit) {
4212: $qval .= $scantronconf{'Qon'};
4213: } else {
4214: $qval .= $scantronconf{'Qoff'};
4215: }
4216: }
4217: $values[$i] = $qval;
4218: }
4219: }
4220: if (length($values[$i]) > $scantronconf{'Qlength'}) {
4221: $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'});
4222: }
4223: my $numblank = $scantronconf{'Qlength'} - length($values[$i]);
4224: if ($numblank > 0) {
4225: $values[$i] .= ($scantronconf{'Qoff'} x $numblank);
4226: }
4227: if ($csvbynum{$i} eq 'FirstQuestion') {
4228: $qstart = $i;
4229: $found{$csvbynum{$i}} = $values[$i];
4230: } else {
4231: $found{'FirstQuestion'} .= $values[$i];
4232: }
4233: } elsif (exists($csvbynum{$i})) {
4234: if ($csvoptions{'rem'}) {
4235: $values[$i] =~ s/^\s+//;
4236: }
4237: if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) {
4238: while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) {
4239: $values[$i] = '0'.$values[$i];
4240: }
4241: }
4242: $found{$csvbynum{$i}} = $values[$i];
4243: }
4244: }
4245: foreach my $item (@ordered) {
4246: my $currlength = 1+length($record);
4247: my $numspaces = $scantronconf{$item} - $currlength;
4248: if ($numspaces > 0) {
4249: $record .= (' ' x $numspaces);
4250: }
4251: if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) {
4252: unless ($item eq 'Qstart') {
4253: if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) {
4254: $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}});
4255: }
4256: }
4257: $record .= $found{$mapstart{$item}};
4258: }
4259: }
4260: $output .= "$record\n";
4261: }
4262: close($fh);
4263: if ($output) {
4264: if (open(my $fh,'>',$fullpath)) {
4265: print $fh $output;
4266: close($fh);
4267: }
4268: }
4269: }
4270: }
4271: return;
4272: }
4273: }
4274:
4275: sub letter_to_digits {
4276: my %lettdig = (
4277: A => 1,
4278: B => 2,
4279: C => 3,
4280: D => 4,
4281: E => 5,
4282: F => 6,
4283: G => 7,
4284: H => 8,
4285: I => 9,
4286: J => 0,
4287: );
4288: return %lettdig;
4289: }
4290:
4291: sub get_scantron_config {
4292: my ($which,$cdom) = @_;
4293: my @lines = &get_scantronformat_file($cdom);
4294: my %config;
4295: #FIXME probably should move to XML it has already gotten a bit much now
4296: foreach my $line (@lines) {
4297: my ($name,$descrip)=split(/:/,$line);
4298: if ($name ne $which ) { next; }
4299: chomp($line);
4300: my @config=split(/:/,$line);
4301: $config{'name'}=$config[0];
4302: $config{'description'}=$config[1];
4303: $config{'CODElocation'}=$config[2];
4304: $config{'CODEstart'}=$config[3];
4305: $config{'CODElength'}=$config[4];
4306: $config{'IDstart'}=$config[5];
4307: $config{'IDlength'}=$config[6];
4308: $config{'Qstart'}=$config[7];
4309: $config{'Qlength'}=$config[8];
4310: $config{'Qoff'}=$config[9];
4311: $config{'Qon'}=$config[10];
4312: $config{'PaperID'}=$config[11];
4313: $config{'PaperIDlength'}=$config[12];
4314: $config{'FirstName'}=$config[13];
4315: $config{'FirstNamelength'}=$config[14];
4316: $config{'LastName'}=$config[15];
4317: $config{'LastNamelength'}=$config[16];
4318: $config{'BubblesPerRow'}=$config[17];
4319: last;
4320: }
4321: return %config;
4322: }
4323:
4324: sub get_scantronformat_file {
4325: my ($cdom) = @_;
4326: if ($cdom eq '') {
4327: $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
4328: }
4329: my %domconfig = &get_dom('configuration',['scantron'],$cdom);
4330: my $gottab = 0;
4331: my @lines;
4332: if (ref($domconfig{'scantron'}) eq 'HASH') {
4333: if ($domconfig{'scantron'}{'scantronformat'} ne '') {
4334: my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
4335: if ($formatfile ne '-1') {
4336: @lines = split("\n",$formatfile,-1);
4337: $gottab = 1;
4338: }
4339: }
4340: }
4341: if (!$gottab) {
4342: my $confname = $cdom.'-domainconfig';
4343: my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
4344: my $formatfile = &getfile($default);
4345: if ($formatfile ne '-1') {
4346: @lines = split("\n",$formatfile,-1);
4347: $gottab = 1;
4348: }
4349: }
4350: if (!$gottab) {
4351: my @domains = ¤t_machine_domains();
4352: if (grep(/^\Q$cdom\E$/,@domains)) {
4353: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) {
4354: @lines = <$fh>;
4355: close($fh);
4356: }
4357: } else {
4358: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) {
4359: @lines = <$fh>;
4360: close($fh);
4361: }
4362: }
4363: }
4364: return @lines;
4365: }
4366:
1.493 albertel 4367: sub removeuploadedurl {
1.984 neumanie 4368: my ($url)=@_;
4369: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 4370: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 4371: }
4372:
4373: sub removeuserfile {
4374: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 4375: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 4376: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 4377: if ($result eq 'ok') {
1.798 raeburn 4378: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
4379: my $metafile = $fname.'.meta';
4380: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 4381: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 4382: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 4383: my $sqlresult =
1.823 albertel 4384: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 4385: 'portfolio_metadata',$group,
4386: 'delete');
1.798 raeburn 4387: }
4388: }
4389: return $result;
1.257 www 4390: }
1.15 www 4391:
1.530 albertel 4392: sub mkdiruserfile {
4393: my ($docuname,$docudom,$dir)=@_;
4394: my $home=&homeserver($docuname,$docudom);
4395: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
4396: }
4397:
1.531 albertel 4398: sub renameuserfile {
4399: my ($docuname,$docudom,$old,$new)=@_;
4400: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 4401: my $result = &reply("renameuserfile:$docudom:$docuname:".
4402: &escape("$old").':'.&escape("$new"),$home);
4403: if ($result eq 'ok') {
4404: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
4405: my $oldmeta = $old.'.meta';
4406: my $newmeta = $new.'.meta';
4407: my $metaresult =
4408: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 4409: my $url = "/uploaded/$docudom/$docuname/$old";
4410: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 4411: my $sqlresult =
1.823 albertel 4412: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 4413: 'portfolio_metadata',$group,
4414: 'delete');
1.798 raeburn 4415: }
4416: }
4417: return $result;
1.531 albertel 4418: }
4419:
1.14 www 4420: # ------------------------------------------------------------------------- Log
4421:
4422: sub log {
4423: my ($dom,$nam,$hom,$what)=@_;
1.47 www 4424: return critical("log:$dom:$nam:$what",$hom);
1.157 www 4425: }
4426:
4427: # ------------------------------------------------------------------ Course Log
1.352 www 4428: #
4429: # This routine flushes several buffers of non-mission-critical nature
4430: #
1.157 www 4431:
4432: sub flushcourselogs {
1.352 www 4433: &logthis('Flushing log buffers');
4434: #
4435: # course logs
4436: # This is a log of all transactions in a course, which can be used
4437: # for data mining purposes
4438: #
4439: # It also collects the courseid database, which lists last transaction
4440: # times and course titles for all courseids
4441: #
4442: my %courseidbuffer=();
1.921 raeburn 4443: foreach my $crsid (keys(%courselogs)) {
1.352 www 4444: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 4445: &escape($courselogs{$crsid}),
4446: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 4447: delete $courselogs{$crsid};
4448: } else {
4449: &logthis('Failed to flush log buffer for '.$crsid);
4450: if (length($courselogs{$crsid})>40000) {
1.672 albertel 4451: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 4452: " exceeded maximum size, deleting.</font>");
4453: delete $courselogs{$crsid};
4454: }
1.352 www 4455: }
1.920 raeburn 4456: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 4457: 'description' => $coursedescrbuf{$crsid},
4458: 'inst_code' => $courseinstcodebuf{$crsid},
4459: 'type' => $coursetypebuf{$crsid},
4460: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 4461: };
1.191 harris41 4462: }
1.352 www 4463: #
4464: # Write course id database (reverse lookup) to homeserver of courses
4465: # Is used in pickcourse
4466: #
1.840 albertel 4467: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 4468: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 4469: $courseidbuffer{$crs_home},
4470: $crs_home,'timeonly');
1.352 www 4471: }
4472: #
4473: # File accesses
4474: # Writes to the dynamic metadata of resources to get hit counts, etc.
4475: #
1.449 matthew 4476: foreach my $entry (keys(%accesshash)) {
1.458 matthew 4477: if ($entry =~ /___count$/) {
4478: my ($dom,$name);
1.807 albertel 4479: ($dom,$name,undef)=
1.811 albertel 4480: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 4481: if (! defined($dom) || $dom eq '' ||
4482: ! defined($name) || $name eq '') {
1.620 albertel 4483: my $cid = $env{'request.course.id'};
4484: $dom = $env{'request.'.$cid.'.domain'};
4485: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 4486: }
1.450 matthew 4487: my $value = $accesshash{$entry};
4488: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
4489: my %temphash=($url => $value);
1.449 matthew 4490: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
4491: if ($result eq 'ok') {
4492: delete $accesshash{$entry};
4493: }
4494: } else {
1.811 albertel 4495: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 4496: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 4497: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 4498: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
4499: delete $accesshash{$entry};
4500: }
1.185 www 4501: }
1.191 harris41 4502: }
1.352 www 4503: #
4504: # Roles
4505: # Reverse lookup of user roles for course faculty/staff and co-authorship
4506: #
1.800 albertel 4507: foreach my $entry (keys(%userrolehash)) {
1.351 www 4508: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 4509: split(/\:/,$entry);
4510: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 4511: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 4512: $rudom,$runame) eq 'ok') {
4513: delete $userrolehash{$entry};
4514: }
4515: }
1.662 raeburn 4516: #
1.1172.2.90 raeburn 4517: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)
1.662 raeburn 4518: #
4519: my %domrolebuffer = ();
1.1000 raeburn 4520: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 4521: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 4522: if ($domrolebuffer{$rudom}) {
4523: $domrolebuffer{$rudom}.='&'.&escape($entry).
4524: '='.&escape($domainrolehash{$entry});
4525: } else {
4526: $domrolebuffer{$rudom}.=&escape($entry).
4527: '='.&escape($domainrolehash{$entry});
4528: }
4529: delete $domainrolehash{$entry};
4530: }
4531: foreach my $dom (keys(%domrolebuffer)) {
1.1172.2.82 raeburn 4532: my %servers;
4533: if (defined(&domain($dom,'primary'))) {
4534: my $primary=&domain($dom,'primary');
4535: my $hostname=&hostname($primary);
4536: $servers{$primary} = $hostname;
4537: } else {
4538: %servers = &get_servers($dom,'library');
4539: }
1.841 albertel 4540: foreach my $tryserver (keys(%servers)) {
1.1172.2.82 raeburn 4541: if (&reply('domroleput:'.$dom.':'.
4542: $domrolebuffer{$dom},$tryserver) eq 'ok') {
4543: last;
4544: } else {
1.841 albertel 4545: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
4546: }
1.662 raeburn 4547: }
4548: }
1.186 www 4549: $dumpcount++;
1.157 www 4550: }
4551:
4552: sub courselog {
4553: my $what=shift;
1.158 www 4554: $what=time.':'.$what;
1.620 albertel 4555: unless ($env{'request.course.id'}) { return ''; }
4556: $coursedombuf{$env{'request.course.id'}}=
4557: $env{'course.'.$env{'request.course.id'}.'.domain'};
4558: $coursenumbuf{$env{'request.course.id'}}=
4559: $env{'course.'.$env{'request.course.id'}.'.num'};
4560: $coursehombuf{$env{'request.course.id'}}=
4561: $env{'course.'.$env{'request.course.id'}.'.home'};
4562: $coursedescrbuf{$env{'request.course.id'}}=
4563: $env{'course.'.$env{'request.course.id'}.'.description'};
4564: $courseinstcodebuf{$env{'request.course.id'}}=
4565: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
4566: $courseownerbuf{$env{'request.course.id'}}=
4567: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 4568: $coursetypebuf{$env{'request.course.id'}}=
4569: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 4570: if (defined $courselogs{$env{'request.course.id'}}) {
4571: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 4572: } else {
1.620 albertel 4573: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 4574: }
1.620 albertel 4575: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 4576: &flushcourselogs();
4577: }
1.158 www 4578: }
4579:
4580: sub courseacclog {
4581: my $fnsymb=shift;
1.620 albertel 4582: unless ($env{'request.course.id'}) { return ''; }
4583: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 4584: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 4585: $what.=':POST';
1.583 matthew 4586: # FIXME: Probably ought to escape things....
1.800 albertel 4587: foreach my $key (keys(%env)) {
4588: if ($key=~/^form\.(.*)/) {
1.975 raeburn 4589: my $formitem = $1;
4590: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
4591: $what.=':'.$formitem.'='.$env{$key};
4592: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
4593: $what.=':'.$formitem.'='.$env{$key};
4594: }
1.158 www 4595: }
1.191 harris41 4596: }
1.583 matthew 4597: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
4598: # FIXME: We should not be depending on a form parameter that someone
4599: # editing lonsearchcat.pm might change in the future.
1.620 albertel 4600: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 4601: $what.= ':POST';
4602: # FIXME: Probably ought to escape things....
4603: foreach my $element ('courseexp','crsfulltext','crsrelated',
4604: 'crsdiscuss') {
1.620 albertel 4605: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 4606: }
4607: }
1.158 www 4608: }
4609: &courselog($what);
1.149 www 4610: }
4611:
1.185 www 4612: sub countacc {
4613: my $url=&declutter(shift);
1.458 matthew 4614: return if (! defined($url) || $url eq '');
1.620 albertel 4615: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 4616: #
4617: # Mark that this url was used in this course
4618: #
1.620 albertel 4619: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 4620: #
4621: # Increase the access count for this resource in this child process
4622: #
1.281 www 4623: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 4624: $accesshash{$key}++;
1.185 www 4625: }
1.349 www 4626:
1.361 www 4627: sub linklog {
4628: my ($from,$to)=@_;
4629: $from=&declutter($from);
4630: $to=&declutter($to);
4631: $accesshash{$from.'___'.$to.'___comefrom'}=1;
4632: $accesshash{$to.'___'.$from.'___goto'}=1;
4633: }
1.1160 www 4634:
4635: sub statslog {
4636: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
4637: if ($users<2) { return; }
4638: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
4639: 'course' => $env{'request.course.id'},
4640: 'sections' => '"all"',
4641: 'num_students' => $users,
4642: 'part' => $part,
4643: 'symb' => $symb,
4644: 'mean_tries' => $av_attempts,
4645: 'deg_of_diff' => $degdiff});
4646: foreach my $key (keys(%dynstore)) {
4647: $accesshash{$key}=$dynstore{$key};
4648: }
4649: }
1.361 www 4650:
1.349 www 4651: sub userrolelog {
4652: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 4653: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 4654: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4655: $userrolehash
4656: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 4657: =$tend.':'.$tstart;
1.662 raeburn 4658: }
1.1169 droeschl 4659: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 4660: $userrolehash
4661: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
4662: =$tend.':'.$tstart;
4663: }
1.1172.2.90 raeburn 4664: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) {
1.662 raeburn 4665: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4666: $domainrolehash
4667: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
4668: = $tend.':'.$tstart;
4669: }
1.351 www 4670: }
4671:
1.957 raeburn 4672: sub courserolelog {
4673: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1172.2.9 raeburn 4674: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
4675: my $cdom = $1;
4676: my $cnum = $2;
4677: my $sec = $3;
4678: my $namespace = 'rolelog';
4679: my %storehash = (
4680: role => $trole,
4681: start => $tstart,
4682: end => $tend,
4683: selfenroll => $selfenroll,
4684: context => $context,
4685: );
4686: if ($trole eq 'gr') {
4687: $namespace = 'groupslog';
4688: $storehash{'group'} = $sec;
4689: } else {
4690: $storehash{'section'} = $sec;
4691: }
4692: &write_log('course',$namespace,\%storehash,$delflag,$username,
4693: $domain,$cnum,$cdom);
4694: if (($trole ne 'st') || ($sec ne '')) {
4695: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 4696: }
4697: }
4698: return;
4699: }
4700:
1.1172.2.9 raeburn 4701: sub domainrolelog {
4702: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4703: if ($area =~ m{^/($match_domain)/$}) {
4704: my $cdom = $1;
4705: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
4706: my $namespace = 'rolelog';
4707: my %storehash = (
4708: role => $trole,
4709: start => $tstart,
4710: end => $tend,
4711: context => $context,
4712: );
4713: &write_log('domain',$namespace,\%storehash,$delflag,$username,
4714: $domain,$domconfiguser,$cdom);
4715: }
4716: return;
4717:
4718: }
4719:
4720: sub coauthorrolelog {
4721: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4722: if ($area =~ m{^/($match_domain)/($match_username)$}) {
4723: my $audom = $1;
4724: my $auname = $2;
4725: my $namespace = 'rolelog';
4726: my %storehash = (
4727: role => $trole,
4728: start => $tstart,
4729: end => $tend,
4730: context => $context,
4731: );
4732: &write_log('author',$namespace,\%storehash,$delflag,$username,
4733: $domain,$auname,$audom);
4734: }
4735: return;
4736: }
4737:
1.351 www 4738: sub get_course_adv_roles {
1.948 raeburn 4739: my ($cid,$codes) = @_;
1.620 albertel 4740: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 4741: my %coursehash=&coursedescription($cid);
1.988 raeburn 4742: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 4743: my %nothide=();
1.800 albertel 4744: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 4745: if ($user !~ /:/) {
4746: $nothide{join(':',split(/[\@]/,$user))}=1;
4747: } else {
4748: $nothide{$user}=1;
4749: }
1.470 www 4750: }
1.1172.2.23 raeburn 4751: my @possdoms = ($coursehash{'domain'});
4752: if ($coursehash{'checkforpriv'}) {
4753: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4754: }
1.351 www 4755: my %returnhash=();
4756: my %dumphash=
4757: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
4758: my $now=time;
1.997 raeburn 4759: my %privileged;
1.1000 raeburn 4760: foreach my $entry (keys(%dumphash)) {
1.800 albertel 4761: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 4762: if (($tstart) && ($tstart<0)) { next; }
4763: if (($tend) && ($tend<$now)) { next; }
4764: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 4765: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 4766: if ($username eq '' || $domain eq '') { next; }
1.1172.2.23 raeburn 4767: if ((&privileged($username,$domain,\@possdoms)) &&
1.997 raeburn 4768: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 4769: if ($role eq 'cr') { next; }
1.948 raeburn 4770: if ($codes) {
4771: if ($section) { $role .= ':'.$section; }
4772: if ($returnhash{$role}) {
4773: $returnhash{$role}.=','.$username.':'.$domain;
4774: } else {
4775: $returnhash{$role}=$username.':'.$domain;
4776: }
1.351 www 4777: } else {
1.988 raeburn 4778: my $key=&plaintext($role,$crstype);
1.973 bisitz 4779: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 4780: if ($returnhash{$key}) {
4781: $returnhash{$key}.=','.$username.':'.$domain;
4782: } else {
4783: $returnhash{$key}=$username.':'.$domain;
4784: }
1.351 www 4785: }
1.948 raeburn 4786: }
1.400 www 4787: return %returnhash;
4788: }
4789:
4790: sub get_my_roles {
1.937 raeburn 4791: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 4792: unless (defined($uname)) { $uname=$env{'user.name'}; }
4793: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 4794: my (%dumphash,%nothide);
1.1086 raeburn 4795: if ($context eq 'userroles') {
1.1166 raeburn 4796: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 4797: } else {
1.1172.2.23 raeburn 4798: %dumphash = &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 4799: if ($hidepriv) {
4800: my %coursehash=&coursedescription($udom.'_'.$uname);
4801: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4802: if ($user !~ /:/) {
4803: $nothide{join(':',split(/[\@]/,$user))} = 1;
4804: } else {
4805: $nothide{$user} = 1;
4806: }
4807: }
4808: }
1.858 raeburn 4809: }
1.400 www 4810: my %returnhash=();
4811: my $now=time;
1.999 raeburn 4812: my %privileged;
1.800 albertel 4813: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 4814: my ($role,$tend,$tstart);
4815: if ($context eq 'userroles') {
1.1149 raeburn 4816: next if ($entry =~ /^rolesdef/);
1.867 raeburn 4817: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
4818: } else {
4819: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
4820: }
1.400 www 4821: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 4822: my $status = 'active';
1.939 raeburn 4823: if (($tend) && ($tend<=$now)) {
1.832 raeburn 4824: $status = 'previous';
4825: }
4826: if (($tstart) && ($now<$tstart)) {
4827: $status = 'future';
4828: }
4829: if (ref($types) eq 'ARRAY') {
4830: if (!grep(/^\Q$status\E$/,@{$types})) {
4831: next;
4832: }
4833: } else {
4834: if ($status ne 'active') {
4835: next;
4836: }
4837: }
1.867 raeburn 4838: my ($rolecode,$username,$domain,$section,$area);
4839: if ($context eq 'userroles') {
1.1172.2.9 raeburn 4840: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 4841: (undef,$domain,$username,$section) = split(/\//,$area);
4842: } else {
4843: ($role,$username,$domain,$section) = split(/\:/,$entry);
4844: }
1.832 raeburn 4845: if (ref($roledoms) eq 'ARRAY') {
4846: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
4847: next;
4848: }
4849: }
4850: if (ref($roles) eq 'ARRAY') {
4851: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 4852: if ($role =~ /^cr\//) {
4853: if (!grep(/^cr$/,@{$roles})) {
4854: next;
4855: }
1.1104 raeburn 4856: } elsif ($role =~ /^gr\//) {
4857: if (!grep(/^gr$/,@{$roles})) {
4858: next;
4859: }
1.922 raeburn 4860: } else {
4861: next;
4862: }
1.832 raeburn 4863: }
1.867 raeburn 4864: }
1.937 raeburn 4865: if ($hidepriv) {
1.1172.2.23 raeburn 4866: my @privroles = ('dc','su');
1.999 raeburn 4867: if ($context eq 'userroles') {
1.1172.2.23 raeburn 4868: next if (grep(/^\Q$role\E$/,@privroles));
1.999 raeburn 4869: } else {
1.1172.2.23 raeburn 4870: my $possdoms = [$domain];
4871: if (ref($roledoms) eq 'ARRAY') {
4872: push(@{$possdoms},@{$roledoms});
1.999 raeburn 4873: }
1.1172.2.23 raeburn 4874: if (&privileged($username,$domain,$possdoms,\@privroles)) {
1.999 raeburn 4875: if (!$nothide{$username.':'.$domain}) {
4876: next;
4877: }
4878: }
1.937 raeburn 4879: }
4880: }
1.933 raeburn 4881: if ($withsec) {
4882: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4883: $tstart.':'.$tend;
4884: } else {
4885: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4886: }
1.832 raeburn 4887: }
1.373 www 4888: return %returnhash;
1.399 www 4889: }
4890:
1.1172.2.89 raeburn 4891: sub get_all_adhocroles {
4892: my ($dom) = @_;
4893: my @roles_by_num = ();
4894: my %domdefaults = &get_domain_defaults($dom);
4895: my (%description,%access_in_dom,%access_info);
4896: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
4897: my $count = 0;
4898: my %domcurrent = %{$domdefaults{'adhocroles'}};
4899: my %ordered;
4900: foreach my $role (sort(keys(%domcurrent))) {
4901: my ($order,$desc,$access_in_dom);
4902: if (ref($domcurrent{$role}) eq 'HASH') {
4903: $order = $domcurrent{$role}{'order'};
4904: $desc = $domcurrent{$role}{'desc'};
4905: $access_in_dom{$role} = $domcurrent{$role}{'access'};
4906: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
4907: }
4908: if ($order eq '') {
4909: $order = $count;
4910: }
4911: $ordered{$order} = $role;
4912: if ($desc ne '') {
4913: $description{$role} = $desc;
4914: } else {
4915: $description{$role}= $role;
4916: }
4917: $count++;
4918: }
4919: foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
4920: push(@roles_by_num,$ordered{$item});
4921: }
4922: }
4923: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
4924: }
4925:
4926: sub get_my_adhocroles {
4927: my ($cid,$checkreg) = @_;
4928: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
4929: if ($env{'request.course.id'} eq $cid) {
4930: $cdom = $env{'course.'.$cid.'.domain'};
4931: $cnum = $env{'course.'.$cid.'.num'};
4932: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
4933: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
4934: $cdom = $1;
4935: $cnum = $2;
4936: %info = &Apache::lonnet::get('environment',['internal.coursecode'],
4937: $cdom,$cnum);
4938: }
4939: if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
4940: my $user = $env{'user.name'}.':'.$env{'user.domain'};
4941: my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
4942: if ($rosterhash{$user} ne '') {
4943: my $type = (split(/:/,$rosterhash{$user}))[5];
4944: return ([],{}) if ($type eq 'auto');
4945: }
4946: }
4947: if (($cdom ne '') && ($cnum ne '')) {
1.1172.2.90 raeburn 4948: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) {
1.1172.2.89 raeburn 4949: my $then=$env{'user.login.time'};
4950: my $update=$env{'user.update.time'};
1.1172.2.90 raeburn 4951: if (!$update) {
4952: $update = $then;
4953: }
4954: my @liveroles;
4955: foreach my $role ('dh','da') {
4956: if ($env{"user.role.$role./$cdom/"}) {
4957: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
4958: my $limit = $update;
4959: if ($env{'request.role'} eq "$role./$cdom/") {
4960: $limit = $then;
4961: }
4962: my $activerole = 1;
4963: if ($tstart && $tstart>$limit) { $activerole = 0; }
4964: if ($tend && $tend <$limit) { $activerole = 0; }
4965: if ($activerole) {
4966: push(@liveroles,$role);
4967: }
4968: }
4969: }
4970: if (@liveroles) {
1.1172.2.89 raeburn 4971: if (&homeserver($cnum,$cdom) ne 'no_host') {
4972: my ($accessref,$accessinfo,%access_in_dom);
4973: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
4974: if (ref($roles_by_num) eq 'ARRAY') {
4975: if (@{$roles_by_num}) {
4976: my %settings;
4977: if ($env{'request.course.id'} eq $cid) {
4978: foreach my $envkey (keys(%env)) {
4979: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
4980: $settings{$1} = $env{$envkey};
4981: }
4982: }
4983: } else {
4984: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
4985: }
4986: my %setincrs;
4987: if ($settings{'internal.adhocaccess'}) {
4988: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
4989: }
4990: my @statuses;
4991: if ($env{'environment.inststatus'}) {
4992: @statuses = split(/,/,$env{'environment.inststatus'});
4993: }
4994: my $user = $env{'user.name'}.':'.$env{'user.domain'};
4995: if (ref($accessref) eq 'HASH') {
4996: %access_in_dom = %{$accessref};
4997: }
4998: foreach my $role (@{$roles_by_num}) {
4999: my ($curraccess,@okstatus,@personnel);
5000: if ($setincrs{$role}) {
5001: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
5002: if ($curraccess eq 'status') {
5003: @okstatus = split(/\&/,$rest);
5004: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5005: @personnel = split(/\&/,$rest);
5006: }
5007: } else {
5008: $curraccess = $access_in_dom{$role};
5009: if (ref($accessinfo) eq 'HASH') {
5010: if ($curraccess eq 'status') {
5011: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5012: @okstatus = @{$accessinfo->{$role}};
5013: }
5014: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5015: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5016: @personnel = @{$accessinfo->{$role}};
5017: }
5018: }
5019: }
5020: }
5021: if ($curraccess eq 'none') {
5022: next;
5023: } elsif ($curraccess eq 'all') {
5024: push(@possroles,$role);
1.1172.2.90 raeburn 5025: } elsif ($curraccess eq 'dh') {
5026: if (grep(/^dh$/,@liveroles)) {
5027: push(@possroles,$role);
5028: } else {
5029: next;
5030: }
5031: } elsif ($curraccess eq 'da') {
5032: if (grep(/^da$/,@liveroles)) {
5033: push(@possroles,$role);
5034: } else {
5035: next;
5036: }
1.1172.2.89 raeburn 5037: } elsif ($curraccess eq 'status') {
5038: if (@okstatus) {
5039: if (!@statuses) {
5040: if (grep(/^default$/,@okstatus)) {
5041: push(@possroles,$role);
5042: }
5043: } else {
5044: foreach my $status (@okstatus) {
5045: if (grep(/^\Q$status\E$/,@statuses)) {
5046: push(@possroles,$role);
5047: last;
5048: }
5049: }
5050: }
5051: }
5052: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5053: if (grep(/^\Q$user\E$/,@personnel)) {
5054: if ($curraccess eq 'exc') {
5055: push(@possroles,$role);
5056: }
5057: } elsif ($curraccess eq 'inc') {
5058: push(@possroles,$role);
5059: }
5060: }
5061: }
5062: }
5063: }
5064: }
5065: }
5066: }
5067: }
5068: unless (ref($description) eq 'HASH') {
5069: if (ref($roles_by_num) eq 'ARRAY') {
5070: my %desc;
5071: map { $desc{$_} = $_; } (@{$roles_by_num});
5072: $description = \%desc;
5073: } else {
5074: $description = {};
5075: }
5076: }
5077: return (\@possroles,$description);
5078: }
5079:
1.399 www 5080: # ----------------------------------------------------- Frontpage Announcements
5081: #
5082: #
5083:
5084: sub postannounce {
5085: my ($server,$text)=@_;
1.844 albertel 5086: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 5087: unless ($text=~/\w/) { $text=''; }
5088: return &reply('setannounce:'.&escape($text),$server);
5089: }
5090:
5091: sub getannounce {
1.448 albertel 5092:
1.1172.2.96 raeburn 5093: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 5094: my $announcement='';
1.800 albertel 5095: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 5096: close($fh);
1.399 www 5097: if ($announcement=~/\w/) {
5098: return
5099: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 5100: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 5101: } else {
5102: return '';
5103: }
5104: } else {
5105: return '';
5106: }
1.351 www 5107: }
1.353 www 5108:
5109: # ---------------------------------------------------------- Course ID routines
5110: # Deal with domain's nohist_courseid.db files
5111: #
5112:
5113: sub courseidput {
1.921 raeburn 5114: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 5115: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 5116: my $outcome;
5117: if ($caller eq 'timeonly') {
5118: my $cids = '';
5119: foreach my $item (keys(%$storehash)) {
5120: $cids.=&escape($item).'&';
5121: }
5122: $cids=~s/\&$//;
5123: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
5124: $coursehome);
5125: } else {
5126: my $items = '';
5127: foreach my $item (keys(%$storehash)) {
5128: $items.= &escape($item).'='.
5129: &freeze_escape($$storehash{$item}).'&';
5130: }
5131: $items=~s/\&$//;
5132: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
5133: $coursehome);
1.918 raeburn 5134: }
5135: if ($outcome eq 'unknown_cmd') {
5136: my $what;
5137: foreach my $cid (keys(%$storehash)) {
5138: $what .= &escape($cid).'=';
1.921 raeburn 5139: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 5140: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 5141: }
5142: $what =~ s/\:$/&/;
5143: }
5144: $what =~ s/\&$//;
5145: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
5146: } else {
5147: return $outcome;
5148: }
1.353 www 5149: }
5150:
5151: sub courseiddump {
1.921 raeburn 5152: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 5153: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 5154: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1172.2.38 raeburn 5155: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
1.1172.2.68 raeburn 5156: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
1.918 raeburn 5157: my $as_hash = 1;
5158: my %returnhash;
5159: if (!$domfilter) { $domfilter=''; }
1.845 albertel 5160: my %libserv = &all_library();
5161: foreach my $tryserver (keys(%libserv)) {
5162: if ( ( $hostidflag == 1
5163: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
5164: || (!defined($hostidflag)) ) {
5165:
1.918 raeburn 5166: if (($domfilter eq '') ||
5167: (&host_domain($tryserver) eq $domfilter)) {
1.1172.2.22 raeburn 5168: my $rep;
5169: if (grep { $_ eq $tryserver } ¤t_machine_ids()) {
5170: $rep = &LONCAPA::Lond::dump_course_id_handler(
5171: join(":", (&host_domain($tryserver), $sincefilter,
5172: &escape($descfilter), &escape($instcodefilter),
5173: &escape($ownerfilter), &escape($coursefilter),
5174: &escape($typefilter), &escape($regexp_ok),
5175: $as_hash, &escape($selfenrollonly),
5176: &escape($catfilter), $showhidden, $caller,
5177: &escape($cloner), &escape($cc_clone), $cloneonly,
5178: &escape($createdbefore), &escape($createdafter),
1.1172.2.68 raeburn 5179: &escape($creationcontext),$domcloner,$hasuniquecode,
5180: $reqcrsdom,&escape($reqinstcode))));
1.1172.2.22 raeburn 5181: } else {
5182: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
5183: $sincefilter.':'.&escape($descfilter).':'.
5184: &escape($instcodefilter).':'.&escape($ownerfilter).
5185: ':'.&escape($coursefilter).':'.&escape($typefilter).
5186: ':'.&escape($regexp_ok).':'.$as_hash.':'.
5187: &escape($selfenrollonly).':'.&escape($catfilter).':'.
5188: $showhidden.':'.$caller.':'.&escape($cloner).':'.
5189: &escape($cc_clone).':'.$cloneonly.':'.
5190: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1172.2.68 raeburn 5191: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
5192: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);
1.1172.2.22 raeburn 5193: }
5194:
1.918 raeburn 5195: my @pairs=split(/\&/,$rep);
5196: foreach my $item (@pairs) {
5197: my ($key,$value)=split(/\=/,$item,2);
5198: $key = &unescape($key);
5199: next if ($key =~ /^error: 2 /);
5200: my $result = &thaw_unescape($value);
5201: if (ref($result) eq 'HASH') {
5202: $returnhash{$key}=$result;
5203: } else {
1.921 raeburn 5204: my @responses = split(/:/,$value);
5205: my @items = ('description','inst_code','owner','type');
1.918 raeburn 5206: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 5207: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 5208: }
1.1008 raeburn 5209: }
1.353 www 5210: }
5211: }
5212: }
5213: }
5214: return %returnhash;
5215: }
5216:
1.1055 raeburn 5217: sub courselastaccess {
5218: my ($cdom,$cnum,$hostidref) = @_;
5219: my %returnhash;
5220: if ($cdom && $cnum) {
5221: my $chome = &homeserver($cnum,$cdom);
5222: if ($chome ne 'no_host') {
5223: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
5224: &extract_lastaccess(\%returnhash,$rep);
5225: }
5226: } else {
5227: if (!$cdom) { $cdom=''; }
5228: my %libserv = &all_library();
5229: foreach my $tryserver (keys(%libserv)) {
5230: if (ref($hostidref) eq 'ARRAY') {
5231: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
5232: }
5233: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
5234: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
5235: &extract_lastaccess(\%returnhash,$rep);
5236: }
5237: }
5238: }
5239: return %returnhash;
5240: }
5241:
5242: sub extract_lastaccess {
5243: my ($returnhash,$rep) = @_;
5244: if (ref($returnhash) eq 'HASH') {
5245: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
5246: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
5247: $rep eq '') {
5248: my @pairs=split(/\&/,$rep);
5249: foreach my $item (@pairs) {
5250: my ($key,$value)=split(/\=/,$item,2);
5251: $key = &unescape($key);
5252: next if ($key =~ /^error: 2 /);
5253: $returnhash->{$key} = &thaw_unescape($value);
5254: }
5255: }
5256: }
5257: return;
5258: }
5259:
1.658 raeburn 5260: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 5261:
5262: sub dcmailput {
1.685 raeburn 5263: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 5264: my $status = &Apache::lonnet::critical(
1.740 www 5265: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
5266: &escape($message),$server);
1.662 raeburn 5267: return $status;
5268: }
5269:
1.658 raeburn 5270: sub dcmaildump {
5271: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 5272: my %returnhash=();
1.846 albertel 5273:
5274: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 5275: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
5276: &escape($enddate).':';
5277: my @esc_senders=map { &escape($_)} @$senders;
5278: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 5279: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 5280: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 5281: if (($key) && ($value)) {
5282: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 5283: }
5284: }
5285: }
5286: return %returnhash;
5287: }
1.662 raeburn 5288: # ---------------------------------------------------------- Domain roles
5289:
5290: sub get_domain_roles {
5291: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 5292: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 5293: $startdate = '.';
5294: }
1.1018 raeburn 5295: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 5296: $enddate = '.';
5297: }
1.922 raeburn 5298: my $rolelist;
5299: if (ref($roles) eq 'ARRAY') {
1.1172.2.23 raeburn 5300: $rolelist = join('&',@{$roles});
1.922 raeburn 5301: }
1.662 raeburn 5302: my %personnel = ();
1.841 albertel 5303:
5304: my %servers = &get_servers($dom,'library');
5305: foreach my $tryserver (keys(%servers)) {
5306: %{$personnel{$tryserver}}=();
5307: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
5308: &escape($startdate).':'.
5309: &escape($enddate).':'.
5310: &escape($rolelist), $tryserver))) {
5311: my ($key,$value) = split(/\=/,$line,2);
5312: if (($key) && ($value)) {
5313: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
5314: }
5315: }
1.662 raeburn 5316: }
5317: return %personnel;
5318: }
1.658 raeburn 5319:
1.1172.2.89 raeburn 5320: sub get_active_domroles {
5321: my ($dom,$roles) = @_;
5322: return () unless (ref($roles) eq 'ARRAY');
5323: my $now = time;
5324: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
5325: my %domroles;
5326: foreach my $server (keys(%dompersonnel)) {
5327: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
5328: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
5329: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
5330: }
5331: }
5332: return %domroles;
5333: }
5334:
1.1057 www 5335: # ----------------------------------------------------------- Interval timing
1.149 www 5336:
1.1153 www 5337: {
5338: # Caches needed for speedup of navmaps
5339: # We don't want to cache this for very long at all (5 seconds at most)
5340: #
5341: # The user for whom we cache
5342: my $cachedkey='';
5343: # The cached times for this user
5344: my %cachedtimes=();
5345: # When this was last done
1.1172.2.66 raeburn 5346: my $cachedtime='';
1.1153 www 5347:
5348: sub load_all_first_access {
1.1154 raeburn 5349: my ($uname,$udom)=@_;
1.1156 www 5350: if (($cachedkey eq $uname.':'.$udom) &&
1.1172.2.2 raeburn 5351: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 5352: return;
5353: }
5354: $cachedtime=time;
5355: $cachedkey=$uname.':'.$udom;
5356: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 5357: }
5358:
1.504 albertel 5359: sub get_first_access {
1.1162 raeburn 5360: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 5361: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 5362: if ($argsymb) { $symb=$argsymb; }
5363: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 5364: if ($argmap) { $map = $argmap; }
1.926 albertel 5365: if ($type eq 'course') {
5366: $res='course';
5367: } elsif ($type eq 'map') {
1.588 albertel 5368: $res=&symbread($map);
5369: } else {
5370: $res=$symb;
5371: }
1.1153 www 5372: &load_all_first_access($uname,$udom);
5373: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 5374: }
5375:
5376: sub set_first_access {
1.1162 raeburn 5377: my ($type,$interval)=@_;
1.790 albertel 5378: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 5379: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 5380: if ($type eq 'course') {
5381: $res='course';
5382: } elsif ($type eq 'map') {
1.588 albertel 5383: $res=&symbread($map);
5384: } else {
5385: $res=$symb;
5386: }
1.1153 www 5387: $cachedkey='';
1.1162 raeburn 5388: my $firstaccess=&get_first_access($type,$symb,$map);
1.1172.2.102 raeburn 5389: if ($firstaccess) {
5390: &logthis("First access time already set ($firstaccess) when attempting ".
5391: "to set new value (type: $type, extent: $res) for $uname:$udom ".
5392: "in $courseid");
5393: return 'already_set';
5394: } else {
1.1162 raeburn 5395: my $start = time;
5396: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
5397: $udom,$uname);
5398: if ($putres eq 'ok') {
5399: &put('timerinterval',{"$courseid\0$res"=>$interval},
5400: $udom,$uname);
5401: &appenv(
5402: {
5403: 'course.'.$courseid.'.firstaccess.'.$res => $start,
5404: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
5405: }
5406: );
1.1172.2.97 raeburn 5407: if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
5408: $cachedtimes{"$courseid\0$res"} = $start;
5409: }
1.1172.2.102 raeburn 5410: } elsif ($putres ne 'refused') {
5411: &logthis("Result: $putres when attempting to set first access time ".
5412: "(type: $type, extent: $res) for $uname:$udom in $courseid");
1.1162 raeburn 5413: }
5414: return $putres;
1.505 albertel 5415: }
5416: return 'already_set';
1.504 albertel 5417: }
1.1153 www 5418: }
1.1172.2.32 raeburn 5419:
5420: sub checkout {
5421: my ($symb,$tuname,$tudom,$tcrsid)=@_;
5422: my $now=time;
5423: my $lonhost=$perlvar{'lonHostID'};
5424: my $infostr=&escape(
5425: 'CHECKOUTTOKEN&'.
5426: $tuname.'&'.
5427: $tudom.'&'.
5428: $tcrsid.'&'.
5429: $symb.'&'.
5430: $now.'&'.$ENV{'REMOTE_ADDR'});
5431: my $token=&reply('tmpput:'.$infostr,$lonhost);
5432: if ($token=~/^error\:/) {
5433: &logthis("<font color=\"blue\">WARNING: ".
5434: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
5435: "</font>");
5436: return '';
5437: }
5438:
5439: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
5440: $token=~tr/a-z/A-Z/;
5441:
5442: my %infohash=('resource.0.outtoken' => $token,
5443: 'resource.0.checkouttime' => $now,
5444: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
5445:
5446: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
5447: return '';
5448: } else {
5449: &logthis("<font color=\"blue\">WARNING: ".
5450: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
5451: "</font>");
5452: }
5453:
5454: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
5455: &escape('Checkout '.$infostr.' - '.
5456: $token)) ne 'ok') {
5457: return '';
5458: } else {
5459: &logthis("<font color=\"blue\">WARNING: ".
5460: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
5461: "</font>");
5462: }
5463: return $token;
5464: }
5465:
5466: # ------------------------------------------------------------ Check in an item
5467:
5468: sub checkin {
5469: my $token=shift;
5470: my $now=time;
5471: my ($ta,$tb,$lonhost)=split(/\*/,$token);
5472: $lonhost=~tr/A-Z/a-z/;
5473: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
5474: $dtoken=~s/\W/\_/g;
5475: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
5476: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
5477:
5478: unless (($tuname) && ($tudom)) {
5479: &logthis('Check in '.$token.' ('.$dtoken.') failed');
5480: return '';
5481: }
5482:
5483: unless (&allowed('mgr',$tcrsid)) {
5484: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
5485: $env{'user.name'}.' - '.$env{'user.domain'});
5486: return '';
5487: }
5488:
5489: my %infohash=('resource.0.intoken' => $token,
5490: 'resource.0.checkintime' => $now,
5491: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
5492:
5493: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
5494: return '';
5495: }
5496:
5497: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
5498: &escape('Checkin - '.$token)) ne 'ok') {
5499: return '';
5500: }
5501:
5502: return ($symb,$tuname,$tudom,$tcrsid);
5503: }
5504:
1.110 www 5505: # --------------------------------------------- Set Expire Date for Spreadsheet
5506:
5507: sub expirespread {
5508: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 5509: my $cid=$env{'request.course.id'};
1.110 www 5510: if ($cid) {
5511: my $now=time;
5512: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 5513: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
5514: $env{'course.'.$cid.'.num'}.
1.110 www 5515: ':nohist_expirationdates:'.
5516: &escape($key).'='.$now,
1.620 albertel 5517: $env{'course.'.$cid.'.home'})
1.110 www 5518: }
5519: return 'ok';
1.14 www 5520: }
5521:
1.109 www 5522: # ----------------------------------------------------- Devalidate Spreadsheets
5523:
5524: sub devalidate {
1.325 www 5525: my ($symb,$uname,$udom)=@_;
1.620 albertel 5526: my $cid=$env{'request.course.id'};
1.109 www 5527: if ($cid) {
1.391 matthew 5528: # delete the stored spreadsheets for
5529: # - the student level sheet of this user in course's homespace
5530: # - the assessment level sheet for this resource
5531: # for this user in user's homespace
1.553 albertel 5532: # - current conditional state info
1.325 www 5533: my $key=$uname.':'.$udom.':';
1.109 www 5534: my $status=
1.299 matthew 5535: &del('nohist_calculatedsheets',
1.391 matthew 5536: [$key.'studentcalc:'],
1.620 albertel 5537: $env{'course.'.$cid.'.domain'},
5538: $env{'course.'.$cid.'.num'})
1.133 albertel 5539: .' '.
5540: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 5541: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 5542: unless ($status eq 'ok ok') {
5543: &logthis('Could not devalidate spreadsheet '.
1.325 www 5544: $uname.' at '.$udom.' for '.
1.109 www 5545: $symb.': '.$status);
1.133 albertel 5546: }
1.553 albertel 5547: &delenv('user.state.'.$cid);
1.109 www 5548: }
5549: }
5550:
1.265 albertel 5551: sub get_scalar {
5552: my ($string,$end) = @_;
5553: my $value;
5554: if ($$string =~ s/^([^&]*?)($end)/$2/) {
5555: $value = $1;
5556: } elsif ($$string =~ s/^([^&]*?)&//) {
5557: $value = $1;
5558: }
5559: return &unescape($value);
5560: }
5561:
5562: sub array2str {
5563: my (@array) = @_;
5564: my $result=&arrayref2str(\@array);
5565: $result=~s/^__ARRAY_REF__//;
5566: $result=~s/__END_ARRAY_REF__$//;
5567: return $result;
5568: }
5569:
1.204 albertel 5570: sub arrayref2str {
5571: my ($arrayref) = @_;
1.265 albertel 5572: my $result='__ARRAY_REF__';
1.204 albertel 5573: foreach my $elem (@$arrayref) {
1.265 albertel 5574: if(ref($elem) eq 'ARRAY') {
5575: $result.=&arrayref2str($elem).'&';
5576: } elsif(ref($elem) eq 'HASH') {
5577: $result.=&hashref2str($elem).'&';
5578: } elsif(ref($elem)) {
5579: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 5580: } else {
5581: $result.=&escape($elem).'&';
5582: }
5583: }
5584: $result=~s/\&$//;
1.265 albertel 5585: $result .= '__END_ARRAY_REF__';
1.204 albertel 5586: return $result;
5587: }
5588:
1.168 albertel 5589: sub hash2str {
1.204 albertel 5590: my (%hash) = @_;
5591: my $result=&hashref2str(\%hash);
1.265 albertel 5592: $result=~s/^__HASH_REF__//;
5593: $result=~s/__END_HASH_REF__$//;
1.204 albertel 5594: return $result;
5595: }
5596:
5597: sub hashref2str {
5598: my ($hashref)=@_;
1.265 albertel 5599: my $result='__HASH_REF__';
1.800 albertel 5600: foreach my $key (sort(keys(%$hashref))) {
5601: if (ref($key) eq 'ARRAY') {
5602: $result.=&arrayref2str($key).'=';
5603: } elsif (ref($key) eq 'HASH') {
5604: $result.=&hashref2str($key).'=';
5605: } elsif (ref($key)) {
1.265 albertel 5606: $result.='=';
1.800 albertel 5607: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 5608: } else {
1.1132 raeburn 5609: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 5610: }
5611:
1.800 albertel 5612: if(ref($hashref->{$key}) eq 'ARRAY') {
5613: $result.=&arrayref2str($hashref->{$key}).'&';
5614: } elsif(ref($hashref->{$key}) eq 'HASH') {
5615: $result.=&hashref2str($hashref->{$key}).'&';
5616: } elsif(ref($hashref->{$key})) {
1.265 albertel 5617: $result.='&';
1.800 albertel 5618: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 5619: } else {
1.800 albertel 5620: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 5621: }
5622: }
1.168 albertel 5623: $result=~s/\&$//;
1.265 albertel 5624: $result .= '__END_HASH_REF__';
1.168 albertel 5625: return $result;
5626: }
5627:
5628: sub str2hash {
1.265 albertel 5629: my ($string)=@_;
5630: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
5631: return %$hash;
5632: }
5633:
5634: sub str2hashref {
1.168 albertel 5635: my ($string) = @_;
1.265 albertel 5636:
5637: my %hash;
5638:
5639: if($string !~ /^__HASH_REF__/) {
5640: if (! ($string eq '' || !defined($string))) {
5641: $hash{'error'}='Not hash reference';
5642: }
5643: return (\%hash, $string);
5644: }
5645:
5646: $string =~ s/^__HASH_REF__//;
5647:
5648: while($string !~ /^__END_HASH_REF__/) {
5649: #key
5650: my $key='';
5651: if($string =~ /^__HASH_REF__/) {
5652: ($key, $string)=&str2hashref($string);
5653: if(defined($key->{'error'})) {
5654: $hash{'error'}='Bad data';
5655: return (\%hash, $string);
5656: }
5657: } elsif($string =~ /^__ARRAY_REF__/) {
5658: ($key, $string)=&str2arrayref($string);
5659: if($key->[0] eq 'Array reference error') {
5660: $hash{'error'}='Bad data';
5661: return (\%hash, $string);
5662: }
5663: } else {
5664: $string =~ s/^(.*?)=//;
1.267 albertel 5665: $key=&unescape($1);
1.265 albertel 5666: }
5667: $string =~ s/^=//;
5668:
5669: #value
5670: my $value='';
5671: if($string =~ /^__HASH_REF__/) {
5672: ($value, $string)=&str2hashref($string);
5673: if(defined($value->{'error'})) {
5674: $hash{'error'}='Bad data';
5675: return (\%hash, $string);
5676: }
5677: } elsif($string =~ /^__ARRAY_REF__/) {
5678: ($value, $string)=&str2arrayref($string);
5679: if($value->[0] eq 'Array reference error') {
5680: $hash{'error'}='Bad data';
5681: return (\%hash, $string);
5682: }
5683: } else {
5684: $value=&get_scalar(\$string,'__END_HASH_REF__');
5685: }
5686: $string =~ s/^&//;
5687:
5688: $hash{$key}=$value;
1.204 albertel 5689: }
1.265 albertel 5690:
5691: $string =~ s/^__END_HASH_REF__//;
5692:
5693: return (\%hash, $string);
1.204 albertel 5694: }
5695:
5696: sub str2array {
1.265 albertel 5697: my ($string)=@_;
5698: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
5699: return @$array;
5700: }
5701:
5702: sub str2arrayref {
1.204 albertel 5703: my ($string) = @_;
1.265 albertel 5704: my @array;
5705:
5706: if($string !~ /^__ARRAY_REF__/) {
5707: if (! ($string eq '' || !defined($string))) {
5708: $array[0]='Array reference error';
5709: }
5710: return (\@array, $string);
5711: }
5712:
5713: $string =~ s/^__ARRAY_REF__//;
5714:
5715: while($string !~ /^__END_ARRAY_REF__/) {
5716: my $value='';
5717: if($string =~ /^__HASH_REF__/) {
5718: ($value, $string)=&str2hashref($string);
5719: if(defined($value->{'error'})) {
5720: $array[0] ='Array reference error';
5721: return (\@array, $string);
5722: }
5723: } elsif($string =~ /^__ARRAY_REF__/) {
5724: ($value, $string)=&str2arrayref($string);
5725: if($value->[0] eq 'Array reference error') {
5726: $array[0] ='Array reference error';
5727: return (\@array, $string);
5728: }
5729: } else {
5730: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
5731: }
5732: $string =~ s/^&//;
5733:
5734: push(@array, $value);
1.191 harris41 5735: }
1.265 albertel 5736:
5737: $string =~ s/^__END_ARRAY_REF__//;
5738:
5739: return (\@array, $string);
1.168 albertel 5740: }
5741:
1.167 albertel 5742: # -------------------------------------------------------------------Temp Store
5743:
1.168 albertel 5744: sub tmpreset {
5745: my ($symb,$namespace,$domain,$stuname) = @_;
5746: if (!$symb) {
5747: $symb=&symbread();
1.620 albertel 5748: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5749: }
5750: $symb=escape($symb);
5751:
1.620 albertel 5752: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 5753: $namespace=~s/\//\_/g;
5754: $namespace=~s/\W//g;
5755:
1.620 albertel 5756: if (!$domain) { $domain=$env{'user.domain'}; }
5757: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5758: if ($domain eq 'public' && $stuname eq 'public') {
5759: $stuname=$ENV{'REMOTE_ADDR'};
5760: }
1.1117 foxr 5761: my $path=LONCAPA::tempdir();
1.168 albertel 5762: my %hash;
5763: if (tie(%hash,'GDBM_File',
5764: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5765: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 5766: foreach my $key (keys(%hash)) {
1.180 albertel 5767: if ($key=~ /:$symb/) {
1.168 albertel 5768: delete($hash{$key});
5769: }
5770: }
5771: }
5772: }
5773:
1.167 albertel 5774: sub tmpstore {
1.168 albertel 5775: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
5776:
5777: if (!$symb) {
5778: $symb=&symbread();
1.620 albertel 5779: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5780: }
5781: $symb=escape($symb);
5782:
5783: if (!$namespace) {
5784: # I don't think we would ever want to store this for a course.
5785: # it seems this will only be used if we don't have a course.
1.620 albertel 5786: #$namespace=$env{'request.course.id'};
1.168 albertel 5787: #if (!$namespace) {
1.620 albertel 5788: $namespace=$env{'request.state'};
1.168 albertel 5789: #}
5790: }
5791: $namespace=~s/\//\_/g;
5792: $namespace=~s/\W//g;
1.620 albertel 5793: if (!$domain) { $domain=$env{'user.domain'}; }
5794: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5795: if ($domain eq 'public' && $stuname eq 'public') {
5796: $stuname=$ENV{'REMOTE_ADDR'};
5797: }
1.168 albertel 5798: my $now=time;
5799: my %hash;
1.1117 foxr 5800: my $path=LONCAPA::tempdir();
1.168 albertel 5801: if (tie(%hash,'GDBM_File',
5802: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5803: &GDBM_WRCREAT(),0640)) {
1.168 albertel 5804: $hash{"version:$symb"}++;
5805: my $version=$hash{"version:$symb"};
5806: my $allkeys='';
5807: foreach my $key (keys(%$storehash)) {
5808: $allkeys.=$key.':';
1.591 albertel 5809: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 5810: }
5811: $hash{"$version:$symb:timestamp"}=$now;
5812: $allkeys.='timestamp';
5813: $hash{"$version:keys:$symb"}=$allkeys;
5814: if (untie(%hash)) {
5815: return 'ok';
5816: } else {
5817: return "error:$!";
5818: }
5819: } else {
5820: return "error:$!";
5821: }
5822: }
1.167 albertel 5823:
1.168 albertel 5824: # -----------------------------------------------------------------Temp Restore
1.167 albertel 5825:
1.168 albertel 5826: sub tmprestore {
5827: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 5828:
1.168 albertel 5829: if (!$symb) {
5830: $symb=&symbread();
1.620 albertel 5831: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5832: }
5833: $symb=escape($symb);
5834:
1.620 albertel 5835: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 5836:
1.620 albertel 5837: if (!$domain) { $domain=$env{'user.domain'}; }
5838: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5839: if ($domain eq 'public' && $stuname eq 'public') {
5840: $stuname=$ENV{'REMOTE_ADDR'};
5841: }
1.168 albertel 5842: my %returnhash;
5843: $namespace=~s/\//\_/g;
5844: $namespace=~s/\W//g;
5845: my %hash;
1.1117 foxr 5846: my $path=LONCAPA::tempdir();
1.168 albertel 5847: if (tie(%hash,'GDBM_File',
5848: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5849: &GDBM_READER(),0640)) {
1.168 albertel 5850: my $version=$hash{"version:$symb"};
5851: $returnhash{'version'}=$version;
5852: my $scope;
5853: for ($scope=1;$scope<=$version;$scope++) {
5854: my $vkeys=$hash{"$scope:keys:$symb"};
5855: my @keys=split(/:/,$vkeys);
5856: my $key;
5857: $returnhash{"$scope:keys"}=$vkeys;
5858: foreach $key (@keys) {
1.591 albertel 5859: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
5860: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 5861: }
5862: }
1.168 albertel 5863: if (!(untie(%hash))) {
5864: return "error:$!";
5865: }
5866: } else {
5867: return "error:$!";
5868: }
5869: return %returnhash;
1.167 albertel 5870: }
5871:
1.9 www 5872: # ----------------------------------------------------------------------- Store
5873:
5874: sub store {
1.1172.2.64 raeburn 5875: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5876: my $home='';
5877:
1.168 albertel 5878: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5879:
1.213 www 5880: $symb=&symbclean($symb);
1.122 albertel 5881: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5882:
1.620 albertel 5883: if (!$domain) { $domain=$env{'user.domain'}; }
5884: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5885:
5886: &devalidate($symb,$stuname,$domain);
1.109 www 5887:
5888: $symb=escape($symb);
1.187 www 5889: if (!$namespace) {
1.620 albertel 5890: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5891: return '';
5892: }
5893: }
1.620 albertel 5894: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5895:
5896: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5897: $$storehash{'host'}=$perlvar{'lonHostID'};
5898:
1.12 www 5899: my $namevalue='';
1.800 albertel 5900: foreach my $key (keys(%$storehash)) {
5901: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5902: }
1.12 www 5903: $namevalue=~s/\&$//;
1.187 www 5904: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.1172.2.64 raeburn 5905: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.9 www 5906: }
5907:
1.47 www 5908: # -------------------------------------------------------------- Critical Store
5909:
5910: sub cstore {
1.1172.2.64 raeburn 5911: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5912: my $home='';
5913:
1.168 albertel 5914: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5915:
1.213 www 5916: $symb=&symbclean($symb);
1.122 albertel 5917: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5918:
1.620 albertel 5919: if (!$domain) { $domain=$env{'user.domain'}; }
5920: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5921:
5922: &devalidate($symb,$stuname,$domain);
1.109 www 5923:
5924: $symb=escape($symb);
1.187 www 5925: if (!$namespace) {
1.620 albertel 5926: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5927: return '';
5928: }
5929: }
1.620 albertel 5930: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5931:
5932: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5933: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 5934:
1.47 www 5935: my $namevalue='';
1.800 albertel 5936: foreach my $key (keys(%$storehash)) {
5937: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5938: }
1.47 www 5939: $namevalue=~s/\&$//;
1.187 www 5940: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 5941: return critical
1.1172.2.64 raeburn 5942: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.47 www 5943: }
5944:
1.9 www 5945: # --------------------------------------------------------------------- Restore
5946:
5947: sub restore {
1.124 www 5948: my ($symb,$namespace,$domain,$stuname) = @_;
5949: my $home='';
5950:
1.168 albertel 5951: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5952:
1.122 albertel 5953: if (!$symb) {
1.1172.2.26 raeburn 5954: return if ($namespace eq 'courserequests');
5955: unless ($symb=escape(&symbread())) { return ''; }
1.122 albertel 5956: } else {
1.1172.2.26 raeburn 5957: unless ($namespace eq 'courserequests') {
5958: $symb=&escape(&symbclean($symb));
5959: }
1.122 albertel 5960: }
1.188 www 5961: if (!$namespace) {
1.620 albertel 5962: unless ($namespace=$env{'request.course.id'}) {
1.188 www 5963: return '';
5964: }
5965: }
1.620 albertel 5966: if (!$domain) { $domain=$env{'user.domain'}; }
5967: if (!$stuname) { $stuname=$env{'user.name'}; }
5968: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 5969: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
5970:
1.12 www 5971: my %returnhash=();
1.800 albertel 5972: foreach my $line (split(/\&/,$answer)) {
5973: my ($name,$value)=split(/\=/,$line);
1.591 albertel 5974: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 5975: }
1.75 www 5976: my $version;
5977: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 5978: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
5979: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 5980: }
1.75 www 5981: }
1.13 www 5982: return %returnhash;
1.34 www 5983: }
5984:
5985: # ---------------------------------------------------------- Course Description
1.1118 foxr 5986: #
5987: #
1.34 www 5988:
5989: sub coursedescription {
1.731 albertel 5990: my ($courseid,$args)=@_;
1.34 www 5991: $courseid=~s/^\///;
1.49 www 5992: $courseid=~s/\_/\//g;
1.34 www 5993: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 5994: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 5995: my $normalid=$cdomain.'_'.$cnum;
5996: # need to always cache even if we get errors otherwise we keep
5997: # trying and trying and trying to get the course description.
5998: my %envhash=();
5999: my %returnhash=();
1.731 albertel 6000:
6001: my $expiretime=600;
6002: if ($env{'request.course.id'} eq $normalid) {
6003: $expiretime=120;
6004: }
6005:
6006: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
6007: if (!$args->{'freshen_cache'}
6008: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
6009: foreach my $key (keys(%env)) {
6010: next if ($key !~ /^\Q$prefix\E(.*)/);
6011: my ($setting) = $1;
6012: $returnhash{$setting} = $env{$key};
6013: }
6014: return %returnhash;
6015: }
6016:
1.1118 foxr 6017: # get the data again
6018:
1.731 albertel 6019: if (!$args->{'one_time'}) {
6020: $envhash{'course.'.$normalid.'.last_cache'}=time;
6021: }
1.811 albertel 6022:
1.34 www 6023: if ($chome ne 'no_host') {
1.302 albertel 6024: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 6025: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 6026: my $username = $env{'user.name'}; # Defult username
6027: if(defined $args->{'user'}) {
6028: $username = $args->{'user'};
6029: }
1.129 albertel 6030: $returnhash{'home'}= $chome;
6031: $returnhash{'domain'} = $cdomain;
6032: $returnhash{'num'} = $cnum;
1.741 raeburn 6033: if (!defined($returnhash{'type'})) {
6034: $returnhash{'type'} = 'Course';
6035: }
1.130 albertel 6036: while (my ($name,$value) = each %returnhash) {
1.53 www 6037: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 6038: }
1.270 www 6039: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 6040: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 6041: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 6042: $envhash{'course.'.$normalid.'.home'}=$chome;
6043: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
6044: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 6045: }
6046: }
1.731 albertel 6047: if (!$args->{'one_time'}) {
1.949 raeburn 6048: &appenv(\%envhash);
1.731 albertel 6049: }
1.302 albertel 6050: return %returnhash;
1.461 www 6051: }
6052:
1.1080 raeburn 6053: sub update_released_required {
6054: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
6055: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
6056: $cid = $env{'request.course.id'};
6057: $cdom = $env{'course.'.$cid.'.domain'};
6058: $cnum = $env{'course.'.$cid.'.num'};
6059: $chome = $env{'course.'.$cid.'.home'};
6060: }
6061: if ($needsrelease) {
6062: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
6063: my $needsupdate;
6064: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
6065: $needsupdate = 1;
6066: } else {
6067: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
6068: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
6069: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
6070: $needsupdate = 1;
6071: }
6072: }
6073: if ($needsupdate) {
6074: my %needshash = (
6075: 'internal.releaserequired' => $needsrelease,
6076: );
6077: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
6078: if ($putresult eq 'ok') {
6079: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
6080: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
6081: if (ref($crsinfo{$cid}) eq 'HASH') {
6082: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
6083: &courseidput($cdom,\%crsinfo,$chome,'notime');
6084: }
6085: }
6086: }
6087: }
6088: return;
6089: }
6090:
1.461 www 6091: # -------------------------------------------------See if a user is privileged
6092:
6093: sub privileged {
1.1172.2.23 raeburn 6094: my ($username,$domain,$possdomains,$possroles)=@_;
1.1170 droeschl 6095: my $now = time;
1.1172.2.23 raeburn 6096: my $roles;
6097: if (ref($possroles) eq 'ARRAY') {
6098: $roles = $possroles;
6099: } else {
6100: $roles = ['dc','su'];
6101: }
6102: if (ref($possdomains) eq 'ARRAY') {
6103: my %privileged = &privileged_by_domain($possdomains,$roles);
6104: foreach my $dom (@{$possdomains}) {
6105: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
6106: (ref($privileged{$dom}) eq 'HASH')) {
6107: foreach my $role (@{$roles}) {
6108: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6109: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
6110: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
6111: return 1 unless (($end && $end < $now) ||
6112: ($start && $start > $now));
6113: }
6114: }
6115: }
6116: }
6117: }
6118: } else {
6119: my %rolesdump = &dump("roles", $domain, $username) or return 0;
6120: my $now = time;
1.1170 droeschl 6121:
1.1172.2.58 raeburn 6122: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
1.1170 droeschl 6123: my ($trole, $tend, $tstart) = split(/_/, $role);
1.1172.2.23 raeburn 6124: if (grep(/^\Q$trole\E$/,@{$roles})) {
6125: return 1 unless ($tend && $tend < $now)
6126: or ($tstart && $tstart > $now);
1.1170 droeschl 6127: }
1.1172.2.23 raeburn 6128: }
6129: }
1.461 www 6130: return 0;
1.9 www 6131: }
1.1 albertel 6132:
1.1172.2.23 raeburn 6133: sub privileged_by_domain {
6134: my ($domains,$roles) = @_;
6135: my %privileged = ();
6136: my $cachetime = 60*60*24;
6137: my $now = time;
6138: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
6139: return %privileged;
6140: }
6141: foreach my $dom (@{$domains}) {
6142: next if (ref($privileged{$dom}) eq 'HASH');
6143: my $needroles;
6144: foreach my $role (@{$roles}) {
6145: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
6146: if (defined($cached)) {
6147: if (ref($result) eq 'HASH') {
6148: $privileged{$dom}{$role} = $result;
6149: }
6150: } else {
6151: $needroles = 1;
6152: }
6153: }
6154: if ($needroles) {
6155: my %dompersonnel = &get_domain_roles($dom,$roles);
6156: $privileged{$dom} = {};
6157: foreach my $server (keys(%dompersonnel)) {
6158: if (ref($dompersonnel{$server}) eq 'HASH') {
6159: foreach my $item (keys(%{$dompersonnel{$server}})) {
6160: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
6161: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
6162: next if ($end && $end < $now);
6163: $privileged{$dom}{$trole}{$uname.':'.$udom} =
6164: $dompersonnel{$server}{$item};
6165: }
6166: }
6167: }
6168: if (ref($privileged{$dom}) eq 'HASH') {
6169: foreach my $role (@{$roles}) {
6170: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6171: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
6172: } else {
6173: my %hash = ();
6174: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
6175: }
6176: }
6177: }
6178: }
6179: }
6180: return %privileged;
6181: }
6182:
1.103 harris41 6183: # -------------------------------------------------------- Get user privileges
1.11 www 6184:
6185: sub rolesinit {
1.1169 droeschl 6186: my ($domain, $username) = @_;
6187: my %userroles = ('user.login.time' => time);
6188: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
6189:
6190: # firstaccess and timerinterval are related to timed maps/resources.
6191: # also, blocking can be triggered by an activating timer
6192: # it's saved in the user's %env.
6193: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
6194: my %timerinterval = &dump('timerinterval', $domain, $username);
6195: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
6196: %timerintchk, %timerintenv);
6197:
1.1162 raeburn 6198: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 6199: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 6200: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
6201: }
1.1169 droeschl 6202:
1.1162 raeburn 6203: foreach my $key (keys(%timerinterval)) {
6204: my ($cid,$rest) = split(/\0/,$key);
6205: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
6206: }
1.1169 droeschl 6207:
1.11 www 6208: my %allroles=();
1.1162 raeburn 6209: my %allgroups=();
1.11 www 6210:
1.1172.2.58 raeburn 6211: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
1.1169 droeschl 6212: my $role = $rolesdump{$area};
6213: $area =~ s/\_\w\w$//;
6214:
6215: my ($trole, $tend, $tstart, $group_privs);
6216:
6217: if ($role =~ /^cr/) {
6218: # Custom role, defined by a user
6219: # e.g., user.role.cr/msu/smith/mynewrole
6220: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
6221: $trole = $1;
6222: ($tend, $tstart) = split('_', $2);
6223: } else {
6224: $trole = $role;
6225: }
6226: } elsif ($role =~ m|^gr/|) {
6227: # Role of member in a group, defined within a course/community
6228: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
6229: ($trole, $tend, $tstart) = split(/_/, $role);
6230: next if $tstart eq '-1';
6231: ($trole, $group_privs) = split(/\//, $trole);
6232: $group_privs = &unescape($group_privs);
6233: } else {
6234: # Just a normal role, defined in roles.tab
6235: ($trole, $tend, $tstart) = split(/_/,$role);
6236: }
6237:
6238: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
6239: $username);
6240: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
6241:
6242: # role expired or not available yet?
6243: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
6244: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
6245:
6246: next if $area eq '' or $trole eq '';
6247:
6248: my $spec = "$trole.$area";
6249: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
6250:
6251: if ($trole =~ /^cr\//) {
6252: # Custom role, defined by a user
6253: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
6254: } elsif ($trole eq 'gr') {
6255: # Role of a member in a group, defined within a course/community
6256: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
6257: next;
6258: } else {
6259: # Normal role, defined in roles.tab
6260: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
6261: }
6262:
6263: my $cid = $tdomain.'_'.$trest;
6264: unless ($firstaccchk{$cid}) {
6265: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
6266: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
6267: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
6268: $coursetimerstarts{$cid}{$item};
6269: }
6270: }
6271: $firstaccchk{$cid} = 1;
6272: }
6273: unless ($timerintchk{$cid}) {
6274: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
6275: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
6276: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
6277: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 6278: }
1.12 www 6279: }
1.1169 droeschl 6280: $timerintchk{$cid} = 1;
1.191 harris41 6281: }
1.11 www 6282: }
1.1169 droeschl 6283:
1.1172.2.91 raeburn 6284: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,
6285: \%allroles, \%allgroups);
1.1169 droeschl 6286: $env{'user.adv'} = $userroles{'user.adv'};
1.1172.2.91 raeburn 6287: $env{'user.rar'} = $userroles{'user.rar'};
1.1169 droeschl 6288:
1.1162 raeburn 6289: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 6290: }
6291:
1.567 raeburn 6292: sub set_arearole {
1.1172.2.19 raeburn 6293: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
6294: unless ($nolog) {
1.567 raeburn 6295: # log the associated role with the area
1.1172.2.19 raeburn 6296: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
6297: }
1.743 albertel 6298: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 6299: }
6300:
6301: sub custom_roleprivs {
6302: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
6303: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
1.1172.2.40 raeburn 6304: my $homsvr = &homeserver($rauthor,$rdomain);
1.838 albertel 6305: if (&hostname($homsvr) ne '') {
1.567 raeburn 6306: my ($rdummy,$roledef)=
6307: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
6308: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
6309: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
6310: if (defined($syspriv)) {
1.1043 raeburn 6311: if ($trest =~ /^$match_community$/) {
6312: $syspriv =~ s/bre\&S//;
6313: }
1.567 raeburn 6314: $$allroles{'cm./'}.=':'.$syspriv;
6315: $$allroles{$spec.'./'}.=':'.$syspriv;
6316: }
6317: if ($tdomain ne '') {
6318: if (defined($dompriv)) {
6319: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
6320: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
6321: }
6322: if (($trest ne '') && (defined($coursepriv))) {
1.1172.2.89 raeburn 6323: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
6324: my $rolename = $1;
6325: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
6326: }
1.567 raeburn 6327: $$allroles{'cm.'.$area}.=':'.$coursepriv;
6328: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
6329: }
6330: }
6331: }
6332: }
6333: }
6334:
1.1172.2.89 raeburn 6335: sub course_adhocrole_privs {
6336: my ($rolename,$cdom,$cnum,$coursepriv) = @_;
6337: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
6338: if ($overrides{"internal.adhocpriv.$rolename"}) {
6339: my (%currprivs,%storeprivs);
6340: foreach my $item (split(/:/,$coursepriv)) {
6341: my ($priv,$restrict) = split(/\&/,$item);
6342: $currprivs{$priv} = $restrict;
6343: }
6344: my (%possadd,%possremove,%full);
6345: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
6346: my ($priv,$restrict)=split(/\&/,$item);
6347: $full{$priv} = $restrict;
6348: }
6349: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
6350: next if ($item eq '');
6351: my ($rule,$rest) = split(/=/,$item);
6352: next unless (($rule eq 'off') || ($rule eq 'on'));
6353: foreach my $priv (split(/:/,$rest)) {
6354: if ($priv ne '') {
6355: if ($rule eq 'off') {
6356: $possremove{$priv} = 1;
6357: } else {
6358: $possadd{$priv} = 1;
6359: }
6360: }
6361: }
6362: }
6363: foreach my $priv (sort(keys(%full))) {
6364: if (exists($currprivs{$priv})) {
6365: unless (exists($possremove{$priv})) {
6366: $storeprivs{$priv} = $currprivs{$priv};
6367: }
6368: } elsif (exists($possadd{$priv})) {
6369: $storeprivs{$priv} = $full{$priv};
6370: }
6371: }
6372: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
6373: }
6374: return $coursepriv;
6375: }
6376:
1.678 raeburn 6377: sub group_roleprivs {
6378: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
6379: my $access = 1;
6380: my $now = time;
6381: if (($tend!=0) && ($tend<$now)) { $access = 0; }
6382: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
6383: if ($access) {
1.811 albertel 6384: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 6385: $$allgroups{$course}{$group} .=':'.$group_privs;
6386: }
6387: }
1.567 raeburn 6388:
6389: sub standard_roleprivs {
6390: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
6391: if (defined($pr{$trole.':s'})) {
6392: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
6393: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
6394: }
6395: if ($tdomain ne '') {
6396: if (defined($pr{$trole.':d'})) {
6397: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
6398: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
6399: }
6400: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
6401: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
6402: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
6403: }
6404: }
6405: }
6406:
6407: sub set_userprivs {
1.1064 raeburn 6408: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 6409: my $author=0;
6410: my $adv=0;
1.1172.2.91 raeburn 6411: my $rar=0;
1.678 raeburn 6412: my %grouproles = ();
6413: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 6414: my @groupkeys;
1.1000 raeburn 6415: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 6416: push(@groupkeys,$role);
6417: }
6418: if (ref($groups_roles) eq 'HASH') {
6419: foreach my $key (keys(%{$groups_roles})) {
6420: unless (grep(/^\Q$key\E$/,@groupkeys)) {
6421: push(@groupkeys,$key);
6422: }
6423: }
6424: }
6425: if (@groupkeys > 0) {
6426: foreach my $role (@groupkeys) {
6427: my ($trole,$area,$sec,$extendedarea);
6428: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
6429: $trole = $1;
6430: $area = $2;
6431: $sec = $3;
6432: $extendedarea = $area.$sec;
6433: if (exists($$allgroups{$area})) {
6434: foreach my $group (keys(%{$$allgroups{$area}})) {
6435: my $spec = $trole.'.'.$extendedarea;
6436: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 6437: $$allgroups{$area}{$group};
1.1064 raeburn 6438: }
1.678 raeburn 6439: }
6440: }
6441: }
6442: }
6443: }
1.800 albertel 6444: foreach my $group (keys(%grouproles)) {
6445: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 6446: }
1.800 albertel 6447: foreach my $role (keys(%{$allroles})) {
6448: my %thesepriv;
1.941 raeburn 6449: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 6450: foreach my $item (split(/:/,$$allroles{$role})) {
6451: if ($item ne '') {
6452: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 6453: if ($restrictions eq '') {
6454: $thesepriv{$privilege}='F';
6455: } elsif ($thesepriv{$privilege} ne 'F') {
6456: $thesepriv{$privilege}.=$restrictions;
6457: }
6458: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
1.1172.2.91 raeburn 6459: if ($thesepriv{'rar'} eq 'F') { $rar=1; }
1.567 raeburn 6460: }
6461: }
6462: my $thesestr='';
1.1104 raeburn 6463: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 6464: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
6465: }
6466: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 6467: }
1.1172.2.91 raeburn 6468: return ($author,$adv,$rar);
1.567 raeburn 6469: }
6470:
1.994 raeburn 6471: sub role_status {
1.1104 raeburn 6472: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 6473: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.1172.2.40 raeburn 6474: my ($one,$two) = split(m{\./},$rolekey,2);
6475: (undef,undef,$$role) = split(/\./,$one,3);
1.994 raeburn 6476: unless (!defined($$role) || $$role eq '') {
1.1172.2.40 raeburn 6477: $$where = '/'.$two;
1.994 raeburn 6478: $$trolecode=$$role.'.'.$$where;
6479: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
6480: $$tstatus='is';
1.1104 raeburn 6481: if ($$tstart && $$tstart>$update) {
1.994 raeburn 6482: $$tstatus='future';
1.1034 raeburn 6483: if ($$tstart<$now) {
6484: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 6485: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 6486: my (%allroles,%allgroups,$group_privs,
6487: %groups_roles,@rolecodes);
1.1002 raeburn 6488: my %userroles = (
6489: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
6490: );
1.1064 raeburn 6491: @rolecodes = ('cm');
1.1002 raeburn 6492: my $spec=$$role.'.'.$$where;
6493: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
6494: if ($$role =~ /^cr\//) {
6495: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 6496: push(@rolecodes,'cr');
1.1002 raeburn 6497: } elsif ($$role eq 'gr') {
1.1064 raeburn 6498: push(@rolecodes,$$role);
1.1002 raeburn 6499: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
6500: $env{'user.name'});
1.1064 raeburn 6501: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 6502: (undef,my $group_privs) = split(/\//,$trole);
6503: $group_privs = &unescape($group_privs);
6504: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 6505: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 6506: &get_groups_roles($tdomain,$trest,
6507: \%course_roles,\@rolecodes,
6508: \%groups_roles);
1.1002 raeburn 6509: } else {
1.1064 raeburn 6510: push(@rolecodes,$$role);
1.1002 raeburn 6511: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
6512: }
1.1172.2.91 raeburn 6513: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,
6514: \%groups_roles);
1.1064 raeburn 6515: &appenv(\%userroles,\@rolecodes);
1.1172.2.92 raeburn 6516: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1002 raeburn 6517: }
6518: }
1.1034 raeburn 6519: $$tstatus = 'is';
1.1002 raeburn 6520: }
1.994 raeburn 6521: }
6522: if ($$tend) {
1.1104 raeburn 6523: if ($$tend<$update) {
1.994 raeburn 6524: $$tstatus='expired';
6525: } elsif ($$tend<$now) {
6526: $$tstatus='will_not';
6527: }
6528: }
6529: }
6530: }
6531: }
6532:
1.1104 raeburn 6533: sub get_groups_roles {
6534: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
6535: return unless((ref($cdom_courseroles) eq 'HASH') &&
6536: (ref($rolecodes) eq 'ARRAY') &&
6537: (ref($groups_roles) eq 'HASH'));
6538: if (keys(%{$cdom_courseroles}) > 0) {
6539: my ($cnum) = ($rest =~ /^($match_courseid)/);
6540: if ($cdom ne '' && $cnum ne '') {
6541: foreach my $key (keys(%{$cdom_courseroles})) {
6542: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
6543: my $crsrole = $1;
6544: my $crssec = $2;
6545: if ($crsrole =~ /^cr/) {
6546: unless (grep(/^cr$/,@{$rolecodes})) {
6547: push(@{$rolecodes},'cr');
6548: }
6549: } else {
6550: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
6551: push(@{$rolecodes},$crsrole);
6552: }
6553: }
6554: my $rolekey = "$crsrole./$cdom/$cnum";
6555: if ($crssec ne '') {
6556: $rolekey .= "/$crssec";
6557: }
6558: $rolekey .= './';
6559: $groups_roles->{$rolekey} = $rolecodes;
6560: }
6561: }
6562: }
6563: }
6564: return;
6565: }
6566:
6567: sub delete_env_groupprivs {
6568: my ($where,$courseroles,$possroles) = @_;
6569: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
6570: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
6571: unless (ref($courseroles->{$udom}) eq 'HASH') {
6572: %{$courseroles->{$udom}} =
6573: &get_my_roles('','','userroles',['active'],
6574: $possroles,[$udom],1);
6575: }
6576: if (ref($courseroles->{$udom}) eq 'HASH') {
6577: foreach my $item (keys(%{$courseroles->{$udom}})) {
6578: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
6579: my $area = '/'.$cdom.'/'.$cnum;
6580: my $privkey = "user.priv.$crsrole.$area";
6581: if ($crssec ne '') {
6582: $privkey .= '/'.$crssec;
6583: }
6584: $privkey .= ".$area/$group";
6585: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
6586: }
6587: }
6588: return;
6589: }
6590:
1.994 raeburn 6591: sub check_adhoc_privs {
1.1172.2.86 raeburn 6592: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;
1.994 raeburn 6593: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1172.2.86 raeburn 6594: if ($sec) {
6595: $cckey .= '/'.$sec;
6596: }
1.1172.2.9 raeburn 6597: my $setprivs;
1.994 raeburn 6598: if ($env{$cckey}) {
6599: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 6600: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 6601: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1172.2.86 raeburn 6602: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1172.2.9 raeburn 6603: $setprivs = 1;
1.994 raeburn 6604: }
6605: } else {
1.1172.2.87 raeburn 6606: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1172.2.9 raeburn 6607: $setprivs = 1;
1.994 raeburn 6608: }
1.1172.2.9 raeburn 6609: return $setprivs;
1.994 raeburn 6610: }
6611:
6612: sub set_adhoc_privileges {
1.1172.2.84 raeburn 6613: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role
1.1172.2.86 raeburn 6614: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;
1.994 raeburn 6615: my $area = '/'.$dcdom.'/'.$pickedcourse;
1.1172.2.86 raeburn 6616: if ($sec ne '') {
6617: $area .= '/'.$sec;
6618: }
1.994 raeburn 6619: my $spec = $role.'.'.$area;
6620: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
1.1172.2.19 raeburn 6621: $env{'user.name'},1);
1.1172.2.84 raeburn 6622: my %rolehash = ();
1.1172.2.89 raeburn 6623: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {
6624: my $rolename = $1;
1.1172.2.84 raeburn 6625: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
1.1172.2.89 raeburn 6626: my %domdef = &get_domain_defaults($dcdom);
6627: if (ref($domdef{'adhocroles'}) eq 'HASH') {
6628: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
6629: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
6630: }
6631: }
1.1172.2.84 raeburn 6632: } else {
6633: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
6634: }
1.1172.2.91 raeburn 6635: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
1.994 raeburn 6636: &appenv(\%userroles,[$role,'cm']);
1.1172.2.92 raeburn 6637: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1088 raeburn 6638: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
6639: &appenv( {'request.role' => $spec,
6640: 'request.role.domain' => $dcdom,
1.1172.2.89 raeburn 6641: 'request.course.sec' => $sec,
1.1088 raeburn 6642: }
6643: );
6644: my $tadv=0;
6645: if (&allowed('adv') eq 'F') { $tadv=1; }
6646: &appenv({'request.role.adv' => $tadv});
6647: }
1.994 raeburn 6648: }
6649:
1.12 www 6650: # --------------------------------------------------------------- get interface
6651:
6652: sub get {
1.131 albertel 6653: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6654: my $items='';
1.800 albertel 6655: foreach my $item (@$storearr) {
6656: $items.=&escape($item).'&';
1.191 harris41 6657: }
1.12 www 6658: $items=~s/\&$//;
1.620 albertel 6659: if (!$udomain) { $udomain=$env{'user.domain'}; }
6660: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 6661: my $uhome=&homeserver($uname,$udomain);
6662:
1.133 albertel 6663: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6664: my @pairs=split(/\&/,$rep);
1.273 albertel 6665: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
6666: return @pairs;
6667: }
1.15 www 6668: my %returnhash=();
1.42 www 6669: my $i=0;
1.800 albertel 6670: foreach my $item (@$storearr) {
6671: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6672: $i++;
1.191 harris41 6673: }
1.15 www 6674: return %returnhash;
1.27 www 6675: }
6676:
6677: # --------------------------------------------------------------- del interface
6678:
6679: sub del {
1.133 albertel 6680: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 6681: my $items='';
1.800 albertel 6682: foreach my $item (@$storearr) {
6683: $items.=&escape($item).'&';
1.191 harris41 6684: }
1.984 neumanie 6685:
1.27 www 6686: $items=~s/\&$//;
1.620 albertel 6687: if (!$udomain) { $udomain=$env{'user.domain'}; }
6688: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6689: my $uhome=&homeserver($uname,$udomain);
6690: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6691: }
6692:
6693: # -------------------------------------------------------------- dump interface
6694:
1.1172.2.22 raeburn 6695: sub unserialize {
6696: my ($rep, $escapedkeys) = @_;
6697:
6698: return {} if $rep =~ /^error/;
6699:
6700: my %returnhash=();
6701: foreach my $item (split(/\&/,$rep)) {
6702: my ($key, $value) = split(/=/, $item, 2);
6703: $key = unescape($key) unless $escapedkeys;
6704: next if $key =~ /^error: 2 /;
6705: $returnhash{$key} = &thaw_unescape($value);
6706: }
6707: return \%returnhash;
6708: }
6709:
6710: # see Lond::dump_with_regexp
6711: # if $escapedkeys hash keys won't get unescaped.
1.15 www 6712: sub dump {
1.1172.2.22 raeburn 6713: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 6714: if (!$udomain) { $udomain=$env{'user.domain'}; }
6715: if (!$uname) { $uname=$env{'user.name'}; }
6716: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 6717:
1.1172.2.55 raeburn 6718: if ($regexp) {
6719: $regexp=&escape($regexp);
6720: } else {
6721: $regexp='.';
6722: }
1.1172.2.22 raeburn 6723: if (grep { $_ eq $uhome } ¤t_machine_ids()) {
6724: # user is hosted on this machine
1.1172.2.55 raeburn 6725: my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,
1.1172.2.27 raeburn 6726: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
1.1172.2.22 raeburn 6727: return %{&unserialize($reply, $escapedkeys)};
6728: }
1.1166 raeburn 6729: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 6730: my @pairs=split(/\&/,$rep);
6731: my %returnhash=();
1.1098 foxr 6732: if (!($rep =~ /^error/ )) {
6733: foreach my $item (@pairs) {
6734: my ($key,$value)=split(/=/,$item,2);
1.1172.2.22 raeburn 6735: $key = &unescape($key) unless ($escapedkeys);
1.1098 foxr 6736: next if ($key =~ /^error: 2 /);
6737: $returnhash{$key}=&thaw_unescape($value);
6738: }
1.755 albertel 6739: }
6740: return %returnhash;
1.407 www 6741: }
6742:
1.1098 foxr 6743:
1.717 albertel 6744: # --------------------------------------------------------- dumpstore interface
6745:
6746: sub dumpstore {
6747: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1172.2.22 raeburn 6748: # same as dump but keys must be escaped. They may contain colon separated
6749: # lists of values that may themself contain colons (e.g. symbs).
6750: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 6751: }
6752:
1.407 www 6753: # -------------------------------------------------------------- keys interface
6754:
6755: sub getkeys {
6756: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 6757: if (!$udomain) { $udomain=$env{'user.domain'}; }
6758: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 6759: my $uhome=&homeserver($uname,$udomain);
6760: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
6761: my @keyarray=();
1.800 albertel 6762: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 6763: next if ($key =~ /^error: 2 /);
1.800 albertel 6764: push(@keyarray,&unescape($key));
1.407 www 6765: }
6766: return @keyarray;
1.318 matthew 6767: }
6768:
1.319 matthew 6769: # --------------------------------------------------------------- currentdump
6770: sub currentdump {
1.328 matthew 6771: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 6772: $courseid = $env{'request.course.id'} if (! defined($courseid));
6773: $sdom = $env{'user.domain'} if (! defined($sdom));
6774: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 6775: my $uhome = &homeserver($sname,$sdom);
1.1172.2.50 raeburn 6776: my $rep;
6777:
6778: if (grep { $_ eq $uhome } current_machine_ids()) {
6779: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
6780: $courseid)));
6781: } else {
6782: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
6783: }
6784:
1.318 matthew 6785: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 6786: #
1.318 matthew 6787: my %returnhash=();
1.319 matthew 6788: #
6789: if ($rep eq "unknown_cmd") {
6790: # an old lond will not know currentdump
6791: # Do a dump and make it look like a currentdump
1.822 albertel 6792: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 6793: return if ($tmp[0] =~ /^(error:|no_such_host)/);
6794: my %hash = @tmp;
6795: @tmp=();
1.424 matthew 6796: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 6797: } else {
6798: my @pairs=split(/\&/,$rep);
1.800 albertel 6799: foreach my $pair (@pairs) {
6800: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 6801: my ($symb,$param) = split(/:/,$key);
6802: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 6803: &thaw_unescape($value);
1.319 matthew 6804: }
1.191 harris41 6805: }
1.12 www 6806: return %returnhash;
1.424 matthew 6807: }
6808:
6809: sub convert_dump_to_currentdump{
6810: my %hash = %{shift()};
6811: my %returnhash;
6812: # Code ripped from lond, essentially. The only difference
6813: # here is the unescaping done by lonnet::dump(). Conceivably
6814: # we might run in to problems with parameter names =~ /^v\./
6815: while (my ($key,$value) = each(%hash)) {
6816: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 6817: $symb = &unescape($symb);
6818: $param = &unescape($param);
1.424 matthew 6819: next if ($v eq 'version' || $symb eq 'keys');
6820: next if (exists($returnhash{$symb}) &&
6821: exists($returnhash{$symb}->{$param}) &&
6822: $returnhash{$symb}->{'v.'.$param} > $v);
6823: $returnhash{$symb}->{$param}=$value;
6824: $returnhash{$symb}->{'v.'.$param}=$v;
6825: }
6826: #
6827: # Remove all of the keys in the hashes which keep track of
6828: # the version of the parameter.
6829: while (my ($symb,$param_hash) = each(%returnhash)) {
6830: # use a foreach because we are going to delete from the hash.
6831: foreach my $key (keys(%$param_hash)) {
6832: delete($param_hash->{$key}) if ($key =~ /^v\./);
6833: }
6834: }
6835: return \%returnhash;
1.12 www 6836: }
6837:
1.627 albertel 6838: # ------------------------------------------------------ critical inc interface
6839:
6840: sub cinc {
6841: return &inc(@_,'critical');
6842: }
6843:
1.449 matthew 6844: # --------------------------------------------------------------- inc interface
6845:
6846: sub inc {
1.627 albertel 6847: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 6848: if (!$udomain) { $udomain=$env{'user.domain'}; }
6849: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 6850: my $uhome=&homeserver($uname,$udomain);
6851: my $items='';
6852: if (! ref($store)) {
6853: # got a single value, so use that instead
6854: $items = &escape($store).'=&';
6855: } elsif (ref($store) eq 'SCALAR') {
6856: $items = &escape($$store).'=&';
6857: } elsif (ref($store) eq 'ARRAY') {
6858: $items = join('=&',map {&escape($_);} @{$store});
6859: } elsif (ref($store) eq 'HASH') {
6860: while (my($key,$value) = each(%{$store})) {
6861: $items.= &escape($key).'='.&escape($value).'&';
6862: }
6863: }
6864: $items=~s/\&$//;
1.627 albertel 6865: if ($critical) {
6866: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
6867: } else {
6868: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
6869: }
1.449 matthew 6870: }
6871:
1.12 www 6872: # --------------------------------------------------------------- put interface
6873:
6874: sub put {
1.134 albertel 6875: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6876: if (!$udomain) { $udomain=$env{'user.domain'}; }
6877: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6878: my $uhome=&homeserver($uname,$udomain);
1.12 www 6879: my $items='';
1.800 albertel 6880: foreach my $item (keys(%$storehash)) {
6881: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6882: }
1.12 www 6883: $items=~s/\&$//;
1.134 albertel 6884: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 6885: }
6886:
1.631 albertel 6887: # ------------------------------------------------------------ newput interface
6888:
6889: sub newput {
6890: my ($namespace,$storehash,$udomain,$uname)=@_;
6891: if (!$udomain) { $udomain=$env{'user.domain'}; }
6892: if (!$uname) { $uname=$env{'user.name'}; }
6893: my $uhome=&homeserver($uname,$udomain);
6894: my $items='';
6895: foreach my $key (keys(%$storehash)) {
6896: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6897: }
6898: $items=~s/\&$//;
6899: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
6900: }
6901:
6902: # --------------------------------------------------------- putstore interface
6903:
1.524 raeburn 6904: sub putstore {
1.1172.2.59 raeburn 6905: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
1.620 albertel 6906: if (!$udomain) { $udomain=$env{'user.domain'}; }
6907: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 6908: my $uhome=&homeserver($uname,$udomain);
6909: my $items='';
1.715 albertel 6910: foreach my $key (keys(%$storehash)) {
6911: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 6912: }
1.715 albertel 6913: $items=~s/\&$//;
1.716 albertel 6914: my $esc_symb=&escape($symb);
6915: my $esc_v=&escape($version);
1.715 albertel 6916: my $reply =
1.716 albertel 6917: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 6918: $uhome);
1.1172.2.59 raeburn 6919: if (($tolog) && ($reply eq 'ok')) {
6920: my $namevalue='';
6921: foreach my $key (keys(%{$storehash})) {
6922: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
6923: }
6924: $namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
6925: '&host='.&escape($perlvar{'lonHostID'}).
6926: '&version='.$esc_v.
6927: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
6928: &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
6929: }
1.715 albertel 6930: if ($reply eq 'unknown_cmd') {
1.716 albertel 6931: # gfall back to way things use to be done
1.715 albertel 6932: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
6933: $uname);
1.524 raeburn 6934: }
1.715 albertel 6935: return $reply;
6936: }
6937:
6938: sub old_putstore {
1.716 albertel 6939: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
6940: if (!$udomain) { $udomain=$env{'user.domain'}; }
6941: if (!$uname) { $uname=$env{'user.name'}; }
6942: my $uhome=&homeserver($uname,$udomain);
6943: my %newstorehash;
1.800 albertel 6944: foreach my $item (keys(%$storehash)) {
6945: my $key = $version.':'.&escape($symb).':'.$item;
6946: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 6947: }
6948: my $items='';
6949: my %allitems = ();
1.800 albertel 6950: foreach my $item (keys(%newstorehash)) {
6951: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 6952: my $key = $1.':keys:'.$2;
6953: $allitems{$key} .= $3.':';
6954: }
1.800 albertel 6955: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 6956: }
1.800 albertel 6957: foreach my $item (keys(%allitems)) {
6958: $allitems{$item} =~ s/\:$//;
6959: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 6960: }
6961: $items=~s/\&$//;
6962: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 6963: }
6964:
1.47 www 6965: # ------------------------------------------------------ critical put interface
6966:
6967: sub cput {
1.134 albertel 6968: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6969: if (!$udomain) { $udomain=$env{'user.domain'}; }
6970: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6971: my $uhome=&homeserver($uname,$udomain);
1.47 www 6972: my $items='';
1.800 albertel 6973: foreach my $item (keys(%$storehash)) {
6974: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6975: }
1.47 www 6976: $items=~s/\&$//;
1.134 albertel 6977: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6978: }
6979:
6980: # -------------------------------------------------------------- eget interface
6981:
6982: sub eget {
1.133 albertel 6983: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6984: my $items='';
1.800 albertel 6985: foreach my $item (@$storearr) {
6986: $items.=&escape($item).'&';
1.191 harris41 6987: }
1.12 www 6988: $items=~s/\&$//;
1.620 albertel 6989: if (!$udomain) { $udomain=$env{'user.domain'}; }
6990: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6991: my $uhome=&homeserver($uname,$udomain);
6992: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6993: my @pairs=split(/\&/,$rep);
6994: my %returnhash=();
1.42 www 6995: my $i=0;
1.800 albertel 6996: foreach my $item (@$storearr) {
6997: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6998: $i++;
1.191 harris41 6999: }
1.12 www 7000: return %returnhash;
7001: }
7002:
1.667 albertel 7003: # ------------------------------------------------------------ tmpput interface
7004: sub tmpput {
1.802 raeburn 7005: my ($storehash,$server,$context)=@_;
1.667 albertel 7006: my $items='';
1.800 albertel 7007: foreach my $item (keys(%$storehash)) {
7008: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 7009: }
7010: $items=~s/\&$//;
1.802 raeburn 7011: if (defined($context)) {
7012: $items .= ':'.&escape($context);
7013: }
1.667 albertel 7014: return &reply("tmpput:$items",$server);
7015: }
7016:
7017: # ------------------------------------------------------------ tmpget interface
7018: sub tmpget {
1.688 albertel 7019: my ($token,$server)=@_;
7020: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7021: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 7022: my %returnhash;
1.1172.2.85 raeburn 7023: if ($rep =~ /^(con_lost|error|no_such_host)/i) {
7024: return %returnhash;
7025: }
1.667 albertel 7026: foreach my $item (split(/\&/,$rep)) {
7027: my ($key,$value)=split(/=/,$item);
7028: $returnhash{&unescape($key)}=&thaw_unescape($value);
7029: }
7030: return %returnhash;
7031: }
7032:
1.1113 raeburn 7033: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 7034: sub tmpdel {
7035: my ($token,$server)=@_;
7036: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7037: return &reply("tmpdel:$token",$server);
7038: }
7039:
1.1172.2.13 raeburn 7040: # ------------------------------------------------------------ get_timebased_id
7041:
7042: sub get_timebased_id {
7043: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
7044: $maxtries) = @_;
7045: my ($newid,$error,$dellock);
7046: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
7047: return ('','ok','invalid call to get suffix');
7048: }
7049:
7050: # set defaults for any optional args for which values were not supplied
7051: if ($who eq '') {
7052: $who = $env{'user.name'}.':'.$env{'user.domain'};
7053: }
7054: if (!$locktries) {
7055: $locktries = 3;
7056: }
7057: if (!$maxtries) {
7058: $maxtries = 10;
7059: }
7060:
7061: if (($cdom eq '') || ($cnum eq '')) {
7062: if ($env{'request.course.id'}) {
7063: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7064: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7065: }
7066: if (($cdom eq '') || ($cnum eq '')) {
7067: return ('','ok','call to get suffix not in course context');
7068: }
7069: }
7070:
7071: # construct locking item
7072: my $lockhash = {
7073: $prefix."\0".'locked_'.$keyid => $who,
7074: };
7075: my $tries = 0;
7076:
7077: # attempt to get lock on nohist_$namespace file
7078: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7079: while (($gotlock ne 'ok') && $tries <$locktries) {
7080: $tries ++;
7081: sleep 1;
7082: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7083: }
7084:
7085: # attempt to get unique identifier, based on current timestamp
7086: if ($gotlock eq 'ok') {
7087: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
7088: my $id = time;
7089: $newid = $id;
1.1172.2.56 raeburn 7090: if ($idtype eq 'addcode') {
7091: $newid .= &sixnum_code();
7092: }
1.1172.2.13 raeburn 7093: my $idtries = 0;
7094: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
7095: if ($idtype eq 'concat') {
7096: $newid = $id.$idtries;
1.1172.2.56 raeburn 7097: } elsif ($idtype eq 'addcode') {
7098: $newid = $newid.&sixnum_code();
1.1172.2.13 raeburn 7099: } else {
7100: $newid ++;
7101: }
7102: $idtries ++;
7103: }
7104: if (!exists($inuse{$prefix."\0".$newid})) {
7105: my %new_item = (
7106: $prefix."\0".$newid => $who,
7107: );
7108: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
7109: $cdom,$cnum);
7110: if ($putresult ne 'ok') {
7111: undef($newid);
7112: $error = 'error saving new item: '.$putresult;
7113: }
7114: } else {
1.1172.2.56 raeburn 7115: undef($newid);
1.1172.2.13 raeburn 7116: $error = ('error: no unique suffix available for the new item ');
7117: }
7118: # remove lock
7119: my @del_lock = ($prefix."\0".'locked_'.$keyid);
7120: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
7121: } else {
7122: $error = "error: could not obtain lockfile\n";
7123: $dellock = 'ok';
1.1172.2.58 raeburn 7124: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
7125: $dellock = 'nolock';
7126: }
1.1172.2.13 raeburn 7127: }
7128: return ($newid,$dellock,$error);
7129: }
7130:
1.1172.2.56 raeburn 7131: sub sixnum_code {
7132: my $code;
7133: for (0..6) {
7134: $code .= int( rand(9) );
7135: }
7136: return $code;
7137: }
7138:
1.765 albertel 7139: # -------------------------------------------------- portfolio access checking
7140:
7141: sub portfolio_access {
1.1172.2.77 raeburn 7142: my ($requrl,$clientip) = @_;
1.765 albertel 7143: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
1.1172.2.77 raeburn 7144: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
1.814 raeburn 7145: if ($result) {
7146: my %setters;
7147: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
7148: my ($startblock,$endblock) =
7149: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
7150: if ($startblock && $endblock) {
7151: return 'B';
7152: }
7153: } else {
7154: my ($startblock,$endblock) =
7155: &Apache::loncommon::blockcheck(\%setters,'port');
7156: if ($startblock && $endblock) {
7157: return 'B';
7158: }
7159: }
7160: }
1.765 albertel 7161: if ($result eq 'ok') {
1.766 albertel 7162: return 'F';
1.765 albertel 7163: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 7164: return 'A';
1.765 albertel 7165: }
1.766 albertel 7166: return '';
1.765 albertel 7167: }
7168:
7169: sub get_portfolio_access {
1.1172.2.77 raeburn 7170: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;
1.767 albertel 7171:
7172: if (!ref($access_hash)) {
7173: my $current_perms = &get_portfile_permissions($udom,$unum);
7174: my %access_controls = &get_access_controls($current_perms,$group,
7175: $file_name);
7176: $access_hash = $access_controls{$file_name};
7177: }
7178:
1.1172.2.77 raeburn 7179: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
1.765 albertel 7180: my $now = time;
7181: if (ref($access_hash) eq 'HASH') {
7182: foreach my $key (keys(%{$access_hash})) {
7183: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
7184: if ($start > $now) {
7185: next;
7186: }
7187: if ($end && $end<$now) {
7188: next;
7189: }
7190: if ($scope eq 'public') {
7191: $public = $key;
7192: last;
7193: } elsif ($scope eq 'guest') {
7194: $guest = $key;
7195: } elsif ($scope eq 'domains') {
7196: push(@domains,$key);
7197: } elsif ($scope eq 'users') {
7198: push(@users,$key);
7199: } elsif ($scope eq 'course') {
7200: push(@courses,$key);
7201: } elsif ($scope eq 'group') {
7202: push(@groups,$key);
1.1172.2.77 raeburn 7203: } elsif ($scope eq 'ip') {
7204: push(@ips,$key);
1.765 albertel 7205: }
7206: }
7207: if ($public) {
7208: return 'ok';
1.1172.2.77 raeburn 7209: } elsif (@ips > 0) {
7210: my $allowed;
7211: foreach my $ipkey (@ips) {
7212: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
7213: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
7214: $allowed = 1;
7215: last;
7216: }
7217: }
7218: }
7219: if ($allowed) {
7220: return 'ok';
7221: }
1.765 albertel 7222: }
7223: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
7224: if ($guest) {
7225: return $guest;
7226: }
7227: } else {
7228: if (@domains > 0) {
7229: foreach my $domkey (@domains) {
7230: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
7231: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
7232: return 'ok';
7233: }
7234: }
7235: }
7236: }
7237: if (@users > 0) {
7238: foreach my $userkey (@users) {
1.865 raeburn 7239: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
7240: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
7241: if (ref($item) eq 'HASH') {
7242: if (($item->{'uname'} eq $env{'user.name'}) &&
7243: ($item->{'udom'} eq $env{'user.domain'})) {
7244: return 'ok';
7245: }
7246: }
7247: }
7248: }
1.765 albertel 7249: }
7250: }
7251: my %roleshash;
7252: my @courses_and_groups = @courses;
7253: push(@courses_and_groups,@groups);
7254: if (@courses_and_groups > 0) {
7255: my (%allgroups,%allroles);
7256: my ($start,$end,$role,$sec,$group);
7257: foreach my $envkey (%env) {
1.1060 raeburn 7258: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 7259: my $cid = $2.'_'.$3;
7260: if ($1 eq 'gr') {
7261: $group = $4;
7262: $allgroups{$cid}{$group} = $env{$envkey};
7263: } else {
7264: if ($4 eq '') {
7265: $sec = 'none';
7266: } else {
7267: $sec = $4;
7268: }
7269: $allroles{$cid}{$1}{$sec} = $env{$envkey};
7270: }
1.811 albertel 7271: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 7272: my $cid = $2.'_'.$3;
7273: if ($4 eq '') {
7274: $sec = 'none';
7275: } else {
7276: $sec = $4;
7277: }
7278: $allroles{$cid}{$1}{$sec} = $env{$envkey};
7279: }
7280: }
7281: if (keys(%allroles) == 0) {
7282: return;
7283: }
7284: foreach my $key (@courses_and_groups) {
7285: my %content = %{$$access_hash{$key}};
7286: my $cnum = $content{'number'};
7287: my $cdom = $content{'domain'};
7288: my $cid = $cdom.'_'.$cnum;
7289: if (!exists($allroles{$cid})) {
7290: next;
7291: }
7292: foreach my $role_id (keys(%{$content{'roles'}})) {
7293: my @sections = @{$content{'roles'}{$role_id}{'section'}};
7294: my @groups = @{$content{'roles'}{$role_id}{'group'}};
7295: my @status = @{$content{'roles'}{$role_id}{'access'}};
7296: my @roles = @{$content{'roles'}{$role_id}{'role'}};
7297: foreach my $role (keys(%{$allroles{$cid}})) {
7298: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
7299: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
7300: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
7301: if (grep/^all$/,@sections) {
7302: return 'ok';
7303: } else {
7304: if (grep/^$sec$/,@sections) {
7305: return 'ok';
7306: }
7307: }
7308: }
7309: }
7310: if (keys(%{$allgroups{$cid}}) == 0) {
7311: if (grep/^none$/,@groups) {
7312: return 'ok';
7313: }
7314: } else {
7315: if (grep/^all$/,@groups) {
7316: return 'ok';
7317: }
7318: foreach my $group (keys(%{$allgroups{$cid}})) {
7319: if (grep/^$group$/,@groups) {
7320: return 'ok';
7321: }
7322: }
7323: }
7324: }
7325: }
7326: }
7327: }
7328: }
7329: if ($guest) {
7330: return $guest;
7331: }
7332: }
7333: }
7334: return;
7335: }
7336:
7337: sub course_group_datechecker {
7338: my ($dates,$now,$status) = @_;
7339: my ($start,$end) = split(/\./,$dates);
7340: if (!$start && !$end) {
7341: return 'ok';
7342: }
7343: if (grep/^active$/,@{$status}) {
7344: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
7345: return 'ok';
7346: }
7347: }
7348: if (grep/^previous$/,@{$status}) {
7349: if ($end > $now ) {
7350: return 'ok';
7351: }
7352: }
7353: if (grep/^future$/,@{$status}) {
7354: if ($start > $now) {
7355: return 'ok';
7356: }
7357: }
7358: return;
7359: }
7360:
7361: sub parse_portfolio_url {
7362: my ($url) = @_;
7363:
7364: my ($type,$udom,$unum,$group,$file_name);
7365:
1.823 albertel 7366: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 7367: $type = 1;
7368: $udom = $1;
7369: $unum = $2;
7370: $file_name = $3;
1.823 albertel 7371: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 7372: $type = 2;
7373: $udom = $1;
7374: $unum = $2;
7375: $group = $3;
7376: $file_name = $3.'/'.$4;
7377: }
7378: if (wantarray) {
7379: return ($type,$udom,$unum,$file_name,$group);
7380: }
7381: return $type;
7382: }
7383:
7384: sub is_portfolio_url {
7385: my ($url) = @_;
7386: return scalar(&parse_portfolio_url($url));
7387: }
7388:
1.798 raeburn 7389: sub is_portfolio_file {
7390: my ($file) = @_;
1.820 raeburn 7391: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 7392: return 1;
7393: }
7394: return;
7395: }
7396:
1.976 raeburn 7397: sub usertools_access {
1.1084 raeburn 7398: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 7399: my ($access,%tools);
7400: if ($context eq '') {
7401: $context = 'tools';
7402: }
7403: if ($context eq 'requestcourses') {
7404: %tools = (
7405: official => 1,
7406: unofficial => 1,
1.1006 raeburn 7407: community => 1,
1.1172.2.37 raeburn 7408: textbook => 1,
1.985 raeburn 7409: );
1.1172.2.9 raeburn 7410: } elsif ($context eq 'requestauthor') {
7411: %tools = (
7412: requestauthor => 1,
7413: );
1.985 raeburn 7414: } else {
7415: %tools = (
7416: aboutme => 1,
7417: blog => 1,
1.1172.2.6 raeburn 7418: webdav => 1,
1.985 raeburn 7419: portfolio => 1,
7420: );
7421: }
1.976 raeburn 7422: return if (!defined($tools{$tool}));
7423:
1.1172.2.35 raeburn 7424: if (($udom eq '') || ($uname eq '')) {
1.976 raeburn 7425: $udom = $env{'user.domain'};
7426: $uname = $env{'user.name'};
7427: }
7428:
1.978 raeburn 7429: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
7430: if ($action ne 'reload') {
1.985 raeburn 7431: if ($context eq 'requestcourses') {
7432: return $env{'environment.canrequest.'.$tool};
1.1172.2.9 raeburn 7433: } elsif ($context eq 'requestauthor') {
7434: return $env{'environment.canrequest.author'};
1.985 raeburn 7435: } else {
7436: return $env{'environment.availabletools.'.$tool};
7437: }
7438: }
1.976 raeburn 7439: }
7440:
1.1172.2.9 raeburn 7441: my ($toolstatus,$inststatus,$envkey);
7442: if ($context eq 'requestauthor') {
7443: $envkey = $context;
7444: } else {
7445: $envkey = $context.'.'.$tool;
7446: }
1.976 raeburn 7447:
1.985 raeburn 7448: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
7449: ($action ne 'reload')) {
1.1172.2.9 raeburn 7450: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 7451: $inststatus = $env{'environment.inststatus'};
7452: } else {
1.1084 raeburn 7453: if (ref($userenvref) eq 'HASH') {
1.1172.2.9 raeburn 7454: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 7455: $inststatus = $userenvref->{'inststatus'};
7456: } else {
1.1172.2.9 raeburn 7457: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
7458: $toolstatus = $userenv{$envkey};
1.1084 raeburn 7459: $inststatus = $userenv{'inststatus'};
7460: }
1.976 raeburn 7461: }
7462:
7463: if ($toolstatus ne '') {
7464: if ($toolstatus) {
7465: $access = 1;
7466: } else {
7467: $access = 0;
7468: }
7469: return $access;
7470: }
7471:
1.1084 raeburn 7472: my ($is_adv,%domdef);
7473: if (ref($is_advref) eq 'HASH') {
7474: $is_adv = $is_advref->{'is_adv'};
7475: } else {
7476: $is_adv = &is_advanced_user($udom,$uname);
7477: }
7478: if (ref($domdefref) eq 'HASH') {
7479: %domdef = %{$domdefref};
7480: } else {
7481: %domdef = &get_domain_defaults($udom);
7482: }
1.976 raeburn 7483: if (ref($domdef{$tool}) eq 'HASH') {
7484: if ($is_adv) {
7485: if ($domdef{$tool}{'_LC_adv'} ne '') {
7486: if ($domdef{$tool}{'_LC_adv'}) {
7487: $access = 1;
7488: } else {
7489: $access = 0;
7490: }
7491: return $access;
7492: }
7493: }
7494: if ($inststatus ne '') {
7495: my ($hasaccess,$hasnoaccess);
7496: foreach my $affiliation (split(/:/,$inststatus)) {
7497: if ($domdef{$tool}{$affiliation} ne '') {
7498: if ($domdef{$tool}{$affiliation}) {
7499: $hasaccess = 1;
7500: } else {
7501: $hasnoaccess = 1;
7502: }
7503: }
7504: }
7505: if ($hasaccess || $hasnoaccess) {
7506: if ($hasaccess) {
7507: $access = 1;
7508: } elsif ($hasnoaccess) {
7509: $access = 0;
7510: }
7511: return $access;
7512: }
7513: } else {
7514: if ($domdef{$tool}{'default'} ne '') {
7515: if ($domdef{$tool}{'default'}) {
7516: $access = 1;
7517: } elsif ($domdef{$tool}{'default'} == 0) {
7518: $access = 0;
7519: }
7520: return $access;
7521: }
7522: }
7523: } else {
1.1172.2.6 raeburn 7524: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 7525: $access = 1;
7526: } else {
7527: $access = 0;
7528: }
1.976 raeburn 7529: return $access;
7530: }
7531: }
7532:
1.1050 raeburn 7533: sub is_course_owner {
7534: my ($cdom,$cnum,$udom,$uname) = @_;
7535: if (($udom eq '') || ($uname eq '')) {
7536: $udom = $env{'user.domain'};
7537: $uname = $env{'user.name'};
7538: }
7539: unless (($udom eq '') || ($uname eq '')) {
7540: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
7541: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
7542: return 1;
7543: } else {
7544: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
7545: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
7546: return 1;
7547: }
7548: }
7549: }
7550: }
7551: return;
7552: }
7553:
1.976 raeburn 7554: sub is_advanced_user {
7555: my ($udom,$uname) = @_;
1.1085 raeburn 7556: if ($udom ne '' && $uname ne '') {
7557: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 7558: if (wantarray) {
7559: return ($env{'user.adv'},$env{'user.author'});
7560: } else {
7561: return $env{'user.adv'};
7562: }
1.1085 raeburn 7563: }
7564: }
1.976 raeburn 7565: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
7566: my %allroles;
1.1128 raeburn 7567: my ($is_adv,$is_author);
1.976 raeburn 7568: foreach my $role (keys(%roleshash)) {
7569: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
7570: my $area = '/'.$tdomain.'/'.$trest;
7571: if ($sec ne '') {
7572: $area .= '/'.$sec;
7573: }
7574: if (($area ne '') && ($trole ne '')) {
7575: my $spec=$trole.'.'.$area;
7576: if ($trole =~ /^cr\//) {
7577: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
7578: } elsif ($trole ne 'gr') {
7579: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
7580: }
1.1128 raeburn 7581: if ($trole eq 'au') {
7582: $is_author = 1;
7583: }
1.976 raeburn 7584: }
7585: }
7586: foreach my $role (keys(%allroles)) {
7587: last if ($is_adv);
7588: foreach my $item (split(/:/,$allroles{$role})) {
7589: if ($item ne '') {
7590: my ($privilege,$restrictions)=split(/&/,$item);
7591: if ($privilege eq 'adv') {
7592: $is_adv = 1;
7593: last;
7594: }
7595: }
7596: }
7597: }
1.1128 raeburn 7598: if (wantarray) {
7599: return ($is_adv,$is_author);
7600: }
1.976 raeburn 7601: return $is_adv;
7602: }
1.798 raeburn 7603:
1.1035 raeburn 7604: sub check_can_request {
1.1036 raeburn 7605: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 7606: my $canreq = 0;
7607: my ($types,$typename) = &Apache::loncommon::course_types();
7608: my @options = ('approval','validate','autolimit');
7609: my $optregex = join('|',@options);
7610: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
7611: foreach my $type (@{$types}) {
7612: if (&usertools_access($env{'user.name'},
7613: $env{'user.domain'},
7614: $type,undef,'requestcourses')) {
7615: $canreq ++;
1.1036 raeburn 7616: if (ref($request_domains) eq 'HASH') {
7617: push(@{$request_domains->{$type}},$env{'user.domain'});
7618: }
1.1035 raeburn 7619: if ($dom eq $env{'user.domain'}) {
7620: $can_request->{$type} = 1;
7621: }
7622: }
7623: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
7624: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
7625: if (@curr > 0) {
1.1036 raeburn 7626: foreach my $item (@curr) {
7627: if (ref($request_domains) eq 'HASH') {
7628: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
7629: if ($otherdom ne '') {
7630: if (ref($request_domains->{$type}) eq 'ARRAY') {
7631: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
7632: push(@{$request_domains->{$type}},$otherdom);
7633: }
7634: } else {
7635: push(@{$request_domains->{$type}},$otherdom);
7636: }
7637: }
7638: }
7639: }
7640: unless($dom eq $env{'user.domain'}) {
7641: $canreq ++;
1.1035 raeburn 7642: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
7643: $can_request->{$type} = 1;
7644: }
7645: }
7646: }
7647: }
7648: }
7649: }
7650: return $canreq;
7651: }
7652:
1.341 www 7653: # ---------------------------------------------- Custom access rule evaluation
7654:
7655: sub customaccess {
7656: my ($priv,$uri)=@_;
1.807 albertel 7657: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 7658: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 7659: $udom = &LONCAPA::clean_domain($udom);
7660: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 7661: my $access=0;
1.800 albertel 7662: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 7663: my ($effect,$realm,$role,$type)=split(/\:/,$right);
7664: if ($type eq 'user') {
7665: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 7666: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 7667: if ($tdom) {
7668: if ($tdom ne $env{'user.domain'}) { next; }
7669: }
1.896 albertel 7670: if ($tuname) {
7671: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 7672: }
7673: $access=($effect eq 'allow');
7674: last;
7675: }
7676: } else {
7677: if ($role) {
7678: if ($role ne $urole) { next; }
7679: }
7680: foreach my $scope (split(/\s*\,\s*/,$realm)) {
7681: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
7682: if ($tdom) {
7683: if ($tdom ne $udom) { next; }
7684: }
7685: if ($tcrs) {
7686: if ($tcrs ne $ucrs) { next; }
7687: }
7688: if ($tsec) {
7689: if ($tsec ne $usec) { next; }
7690: }
7691: $access=($effect eq 'allow');
7692: last;
7693: }
7694: if ($realm eq '' && $role eq '') {
7695: $access=($effect eq 'allow');
7696: }
1.402 bowersj2 7697: }
1.341 www 7698: }
7699: return $access;
7700: }
7701:
1.103 harris41 7702: # ------------------------------------------------- Check for a user privilege
1.12 www 7703:
7704: sub allowed {
1.1172.2.65 raeburn 7705: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck)=@_;
1.705 albertel 7706: my $ver_orguri=$uri;
1.439 www 7707: $uri=&deversion($uri);
1.152 www 7708: my $orguri=$uri;
1.52 www 7709: $uri=&declutter($uri);
1.809 raeburn 7710:
1.810 raeburn 7711: if ($priv eq 'evb') {
7712: # Evade communication block restrictions for specified role in a course
7713: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
7714: return $1;
7715: } else {
7716: return;
7717: }
7718: }
7719:
1.620 albertel 7720: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 7721: # Free bre access to adm and meta resources
1.775 albertel 7722: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 7723: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
7724: && ($priv eq 'bre')) {
1.14 www 7725: return 'F';
1.159 www 7726: }
7727:
1.545 banghart 7728: # Free bre access to user's own portfolio contents
1.714 raeburn 7729: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 7730: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 7731: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 7732: my %setters;
7733: my ($startblock,$endblock) =
7734: &Apache::loncommon::blockcheck(\%setters,'port');
7735: if ($startblock && $endblock) {
7736: return 'B';
7737: } else {
7738: return 'F';
7739: }
1.545 banghart 7740: }
7741:
1.762 raeburn 7742: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 7743: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
7744: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
7745: if (exists($env{'request.course.id'})) {
7746: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7747: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7748: if (($domain eq $cdom) && ($name eq $cnum)) {
7749: my $courseprivid=$env{'request.course.id'};
7750: $courseprivid=~s/\_/\//;
7751: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
7752: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
7753: return $1;
1.762 raeburn 7754: } else {
7755: if ($env{'request.course.sec'}) {
7756: $courseprivid.='/'.$env{'request.course.sec'};
7757: }
7758: if ($env{'user.priv.'.$env{'request.role'}.'./'.
7759: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
7760: return $2;
7761: }
1.714 raeburn 7762: }
7763: }
7764: }
7765: }
7766:
1.159 www 7767: # Free bre to public access
7768:
7769: if ($priv eq 'bre') {
1.238 www 7770: my $copyright=&metadata($uri,'copyright');
1.620 albertel 7771: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 7772: return 'F';
7773: }
1.238 www 7774: if ($copyright eq 'priv') {
7775: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7776: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 7777: return '';
7778: }
7779: }
7780: if ($copyright eq 'domain') {
7781: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7782: unless (($env{'user.domain'} eq $1) ||
7783: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 7784: return '';
7785: }
1.262 matthew 7786: }
1.620 albertel 7787: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 7788: # Library role, so allow browsing of resources in this domain.
7789: return 'F';
1.238 www 7790: }
1.341 www 7791: if ($copyright eq 'custom') {
7792: unless (&customaccess($priv,$uri)) { return ''; }
7793: }
1.14 www 7794: }
1.264 matthew 7795: # Domain coordinator is trying to create a course
1.620 albertel 7796: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 7797: # uri is the requested domain in this case.
7798: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 7799: # a role of dc for the domain in question.
1.620 albertel 7800: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 7801: }
1.29 www 7802:
1.52 www 7803: my $thisallowed='';
7804: my $statecond=0;
7805: my $courseprivid='';
7806:
1.1039 raeburn 7807: my $ownaccess;
1.1043 raeburn 7808: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 7809: if (($priv eq 'bro') && ($env{'user.author'})) {
7810: if ($uri eq '') {
7811: $ownaccess = 1;
7812: } else {
7813: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
7814: my $udom = $env{'user.domain'};
7815: my $uname = $env{'user.name'};
7816: if ($uri =~ m{^\Q$udom\E/?$}) {
7817: $ownaccess = 1;
1.1040 raeburn 7818: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 7819: unless ($uri =~ m{\.\./}) {
7820: $ownaccess = 1;
7821: }
7822: } elsif (($udom ne 'public') && ($uname ne 'public')) {
7823: my $now = time;
7824: if ($uri =~ m{^([^/]+)/?$}) {
7825: my $adom = $1;
7826: foreach my $key (keys(%env)) {
1.1042 raeburn 7827: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 7828: my ($start,$end) = split('.',$env{$key});
7829: if (($now >= $start) && (!$end || $end < $now)) {
7830: $ownaccess = 1;
7831: last;
7832: }
7833: }
7834: }
7835: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
7836: my $adom = $1;
7837: my $aname = $2;
1.1042 raeburn 7838: foreach my $role ('ca','aa') {
7839: if ($env{"user.role.$role./$adom/$aname"}) {
7840: my ($start,$end) =
7841: split('.',$env{"user.role.$role./$adom/$aname"});
7842: if (($now >= $start) && (!$end || $end < $now)) {
7843: $ownaccess = 1;
7844: last;
7845: }
1.1039 raeburn 7846: }
7847: }
7848: }
7849: }
7850: }
7851: }
7852: }
7853:
1.52 www 7854: # Course
7855:
1.620 albertel 7856: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7857: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7858: $thisallowed.=$1;
7859: }
1.52 www 7860: }
1.29 www 7861:
1.52 www 7862: # Domain
7863:
1.620 albertel 7864: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 7865: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7866: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7867: $thisallowed.=$1;
7868: }
1.12 www 7869: }
1.52 www 7870:
1.1141 raeburn 7871: # User who is not author or co-author might still be able to edit
7872: # resource of an author in the domain (e.g., if Domain Coordinator).
7873: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
7874: (&allowed('mdc',$env{'request.course.id'}))) {
7875: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
7876: $thisallowed.=$1;
7877: }
7878: }
7879:
1.52 www 7880: # Course: uri itself is a course
1.66 www 7881: my $courseuri=$uri;
7882: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 7883: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 7884:
1.620 albertel 7885: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 7886: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7887: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7888: $thisallowed.=$1;
7889: }
1.12 www 7890: }
1.29 www 7891:
1.665 albertel 7892: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 7893: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 7894: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 7895: $thisallowed='';
1.671 raeburn 7896: my ($match)=&is_on_map($uri);
7897: if ($match) {
7898: if ($env{'user.priv.'.$env{'request.role'}.'./'}
7899: =~/\Q$priv\E\&([^\:]*)/) {
1.1172.2.65 raeburn 7900: my $value = $1;
7901: if ($noblockcheck) {
7902: $thisallowed.=$value;
1.1162 raeburn 7903: } else {
1.1172.2.65 raeburn 7904: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7905: if (@blockers > 0) {
7906: $thisallowed = 'B';
7907: } else {
7908: $thisallowed.=$value;
7909: }
1.1162 raeburn 7910: }
1.671 raeburn 7911: }
7912: } else {
1.705 albertel 7913: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 7914: if ($refuri) {
7915: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 7916: $thisallowed='F';
1.671 raeburn 7917: } else {
7918: $refuri=&declutter($refuri);
7919: my ($match) = &is_on_map($refuri);
7920: if ($match) {
1.1172.2.65 raeburn 7921: if ($noblockcheck) {
1.1162 raeburn 7922: $thisallowed='F';
1.1172.2.65 raeburn 7923: } else {
7924: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
7925: if (@blockers > 0) {
7926: $thisallowed = 'B';
7927: } else {
7928: $thisallowed='F';
7929: }
1.1162 raeburn 7930: }
1.671 raeburn 7931: }
1.669 raeburn 7932: }
1.671 raeburn 7933: }
7934: }
1.314 www 7935: }
1.492 albertel 7936:
1.766 albertel 7937: if ($priv eq 'bre'
7938: && $thisallowed ne 'F'
7939: && $thisallowed ne '2'
7940: && &is_portfolio_url($uri)) {
1.1172.2.77 raeburn 7941: $thisallowed = &portfolio_access($uri,$clientip);
1.766 albertel 7942: }
7943:
1.52 www 7944: # Full access at system, domain or course-wide level? Exit.
1.29 www 7945: if ($thisallowed=~/F/) {
7946: return 'F';
7947: }
7948:
1.52 www 7949: # If this is generating or modifying users, exit with special codes
1.29 www 7950:
1.643 www 7951: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
7952: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 7953: my ($audom,$auname)=split('/',$uri);
1.643 www 7954: # no author name given, so this just checks on the general right to make a co-author in this domain
7955: unless ($auname) { return $thisallowed; }
7956: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 7957: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
7958: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
7959: ($audom ne $env{'request.role.domain'}))) { return ''; }
7960: }
1.52 www 7961: return $thisallowed;
7962: }
7963: #
1.103 harris41 7964: # Gathered so far: system, domain and course wide privileges
1.52 www 7965: #
7966: # Course: See if uri or referer is an individual resource that is part of
7967: # the course
7968:
1.620 albertel 7969: if ($env{'request.course.id'}) {
1.232 www 7970:
1.620 albertel 7971: $courseprivid=$env{'request.course.id'};
7972: if ($env{'request.course.sec'}) {
7973: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 7974: }
7975: $courseprivid=~s/\_/\//;
7976: my $checkreferer=1;
1.232 www 7977: my ($match,$cond)=&is_on_map($uri);
7978: if ($match) {
7979: $statecond=$cond;
1.620 albertel 7980: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 7981: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 7982: my $value = $1;
7983: if ($priv eq 'bre') {
1.1172.2.65 raeburn 7984: if ($noblockcheck) {
1.1162 raeburn 7985: $thisallowed.=$value;
1.1172.2.65 raeburn 7986: } else {
7987: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7988: if (@blockers > 0) {
7989: $thisallowed = 'B';
7990: } else {
7991: $thisallowed.=$value;
7992: }
1.1162 raeburn 7993: }
7994: } else {
7995: $thisallowed.=$value;
7996: }
1.52 www 7997: $checkreferer=0;
7998: }
1.29 www 7999: }
1.83 www 8000:
1.148 www 8001: if ($checkreferer) {
1.620 albertel 8002: my $refuri=$env{'httpref.'.$orguri};
1.148 www 8003: unless ($refuri) {
1.800 albertel 8004: foreach my $key (keys(%env)) {
8005: if ($key=~/^httpref\..*\*/) {
8006: my $pattern=$key;
1.156 www 8007: $pattern=~s/^httpref\.\/res\///;
1.148 www 8008: $pattern=~s/\*/\[\^\/\]\+/g;
8009: $pattern=~s/\//\\\//g;
1.152 www 8010: if ($orguri=~/$pattern/) {
1.800 albertel 8011: $refuri=$env{$key};
1.148 www 8012: }
8013: }
1.191 harris41 8014: }
1.148 www 8015: }
1.232 www 8016:
1.148 www 8017: if ($refuri) {
1.152 www 8018: $refuri=&declutter($refuri);
1.232 www 8019: my ($match,$cond)=&is_on_map($refuri);
8020: if ($match) {
8021: my $refstatecond=$cond;
1.620 albertel 8022: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 8023: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 8024: my $value = $1;
8025: if ($priv eq 'bre') {
1.1172.2.65 raeburn 8026: if ($noblockcheck) {
1.1162 raeburn 8027: $thisallowed.=$value;
1.1172.2.65 raeburn 8028: } else {
8029: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
8030: if (@blockers > 0) {
8031: $thisallowed = 'B';
8032: } else {
8033: $thisallowed.=$value;
8034: }
1.1162 raeburn 8035: }
8036: } else {
8037: $thisallowed.=$value;
8038: }
1.53 www 8039: $uri=$refuri;
8040: $statecond=$refstatecond;
1.52 www 8041: }
8042: }
1.148 www 8043: }
1.29 www 8044: }
1.52 www 8045: }
1.29 www 8046:
1.52 www 8047: #
1.103 harris41 8048: # Gathered now: all privileges that could apply, and condition number
1.52 www 8049: #
8050: #
8051: # Full or no access?
8052: #
1.29 www 8053:
1.52 www 8054: if ($thisallowed=~/F/) {
8055: return 'F';
8056: }
1.29 www 8057:
1.52 www 8058: unless ($thisallowed) {
8059: return '';
8060: }
1.29 www 8061:
1.52 www 8062: # Restrictions exist, deal with them
8063: #
8064: # C:according to course preferences
8065: # R:according to resource settings
8066: # L:unless locked
8067: # X:according to user session state
8068: #
8069:
8070: # Possibly locked functionality, check all courses
1.54 www 8071: # Locks might take effect only after 10 minutes cache expiration for other
8072: # courses, and 2 minutes for current course
1.52 www 8073:
8074: my $envkey;
8075: if ($thisallowed=~/L/) {
1.1000 raeburn 8076: foreach $envkey (keys(%env)) {
1.54 www 8077: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
8078: my $courseid=$2;
8079: my $roleid=$1.'.'.$2;
1.92 www 8080: $courseid=~s/^\///;
1.54 www 8081: my $expiretime=600;
1.620 albertel 8082: if ($env{'request.role'} eq $roleid) {
1.54 www 8083: $expiretime=120;
8084: }
8085: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
8086: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 8087: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 8088: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 8089: }
1.620 albertel 8090: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
8091: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
8092: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
8093: &log($env{'user.domain'},$env{'user.name'},
8094: $env{'user.home'},
1.57 www 8095: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 8096: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 8097: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 8098: return '';
8099: }
8100: }
1.620 albertel 8101: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
8102: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
8103: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
8104: &log($env{'user.domain'},$env{'user.name'},
8105: $env{'user.home'},
1.57 www 8106: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 8107: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 8108: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 8109: return '';
8110: }
8111: }
8112: }
1.29 www 8113: }
1.52 www 8114: }
8115:
8116: #
8117: # Rest of the restrictions depend on selected course
8118: #
8119:
1.620 albertel 8120: unless ($env{'request.course.id'}) {
1.766 albertel 8121: if ($thisallowed eq 'A') {
8122: return 'A';
1.814 raeburn 8123: } elsif ($thisallowed eq 'B') {
8124: return 'B';
1.766 albertel 8125: } else {
8126: return '1';
8127: }
1.52 www 8128: }
1.29 www 8129:
1.52 www 8130: #
8131: # Now user is definitely in a course
8132: #
1.53 www 8133:
8134:
8135: # Course preferences
8136:
8137: if ($thisallowed=~/C/) {
1.620 albertel 8138: my $rolecode=(split(/\./,$env{'request.role'}))[0];
8139: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
8140: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 8141: =~/\Q$rolecode\E/) {
1.1103 raeburn 8142: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 8143: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
8144: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
8145: $env{'request.course.id'});
8146: }
1.237 www 8147: return '';
8148: }
8149:
1.620 albertel 8150: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 8151: =~/\Q$unamedom\E/) {
1.1103 raeburn 8152: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 8153: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
8154: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
8155: $env{'request.course.id'});
8156: }
1.54 www 8157: return '';
8158: }
1.53 www 8159: }
8160:
8161: # Resource preferences
8162:
8163: if ($thisallowed=~/R/) {
1.620 albertel 8164: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 8165: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 8166: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 8167: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
8168: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
8169: }
8170: return '';
1.54 www 8171: }
1.53 www 8172: }
1.30 www 8173:
1.246 www 8174: # Restricted by state or randomout?
1.30 www 8175:
1.52 www 8176: if ($thisallowed=~/X/) {
1.620 albertel 8177: if ($env{'acc.randomout'}) {
1.579 albertel 8178: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 8179: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 8180: return '';
8181: }
1.247 www 8182: }
8183: if (&condval($statecond)) {
1.52 www 8184: return '2';
8185: } else {
8186: return '';
8187: }
8188: }
1.30 www 8189:
1.766 albertel 8190: if ($thisallowed eq 'A') {
8191: return 'A';
1.814 raeburn 8192: } elsif ($thisallowed eq 'B') {
8193: return 'B';
1.766 albertel 8194: }
1.52 www 8195: return 'F';
1.232 www 8196: }
1.1162 raeburn 8197:
1.1172.2.13 raeburn 8198: # ------------------------------------------- Check construction space access
8199:
8200: sub constructaccess {
8201: my ($url,$setpriv)=@_;
8202:
8203: # We do not allow editing of previous versions of files
8204: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
8205:
8206: # Get username and domain from URL
8207: my ($ownername,$ownerdomain,$ownerhome);
8208:
8209: ($ownerdomain,$ownername) =
1.1172.2.83 raeburn 8210: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)(?:/|$)});
1.1172.2.13 raeburn 8211:
8212: # The URL does not really point to any authorspace, forget it
8213: unless (($ownername) && ($ownerdomain)) { return ''; }
8214:
8215: # Now we need to see if the user has access to the authorspace of
8216: # $ownername at $ownerdomain
8217:
8218: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
8219: # Real author for this?
8220: $ownerhome = $env{'user.home'};
8221: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
8222: return ($ownername,$ownerdomain,$ownerhome);
8223: }
8224: } else {
8225: # Co-author for this?
8226: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
8227: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
8228: $ownerhome = &homeserver($ownername,$ownerdomain);
8229: return ($ownername,$ownerdomain,$ownerhome);
8230: }
8231: }
8232:
8233: # We don't have any access right now. If we are not possibly going to do anything about this,
8234: # we might as well leave
8235: unless ($setpriv) { return ''; }
8236:
8237: # Backdoor access?
8238: my $allowed=&allowed('eco',$ownerdomain);
8239: # Nope
8240: unless ($allowed) { return ''; }
8241: # Looks like we may have access, but could be locked by the owner of the construction space
8242: if ($allowed eq 'U') {
8243: my %blocked=&get('environment',['domcoord.author'],
8244: $ownerdomain,$ownername);
8245: # Is blocked by owner
8246: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
8247: }
8248: if (($allowed eq 'F') || ($allowed eq 'U')) {
8249: # Grant temporary access
8250: my $then=$env{'user.login.time'};
1.1172.2.16 raeburn 8251: my $update=$env{'user.update.time'};
1.1172.2.13 raeburn 8252: if (!$update) { $update = $then; }
8253: my $refresh=$env{'user.refresh.time'};
8254: if (!$refresh) { $refresh = $update; }
8255: my $now = time;
8256: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
8257: $now,'ca','constructaccess');
8258: $ownerhome = &homeserver($ownername,$ownerdomain);
8259: return($ownername,$ownerdomain,$ownerhome);
8260: }
8261: # No business here
8262: return '';
8263: }
8264:
1.1172.2.66 raeburn 8265: # ----------------------------------------------------------- Content Blocking
8266:
8267: {
8268: # Caches for faster Course Contents display where content blocking
8269: # is in operation (i.e., interval param set) for timed quiz.
8270: #
8271: # User for whom data are being temporarily cached.
8272: my $cacheduser='';
8273: # Cached blockers for this user (a hash of blocking items).
8274: my %cachedblockers=();
8275: # When the data were last cached.
8276: my $cachedlast='';
8277:
8278: sub load_all_blockers {
8279: my ($uname,$udom,$blocks)=@_;
8280: if (($uname ne '') && ($udom ne '')) {
8281: if (($cacheduser eq $uname.':'.$udom) &&
8282: (abs($cachedlast-time)<5)) {
8283: return;
8284: }
8285: }
8286: $cachedlast=time;
8287: $cacheduser=$uname.':'.$udom;
8288: %cachedblockers = &get_commblock_resources($blocks);
8289: }
8290:
1.1162 raeburn 8291: sub get_comm_blocks {
8292: my ($cdom,$cnum) = @_;
8293: if ($cdom eq '' || $cnum eq '') {
8294: return unless ($env{'request.course.id'});
8295: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
8296: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8297: }
8298: my %commblocks;
8299: my $hashid=$cdom.'_'.$cnum;
8300: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
8301: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
8302: %commblocks = %{$blocksref};
8303: } else {
8304: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
8305: my $cachetime = 600;
8306: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
8307: }
8308: return %commblocks;
8309: }
8310:
1.1172.2.66 raeburn 8311: sub get_commblock_resources {
8312: my ($blocks) = @_;
8313: my %blockers = ();
8314: return %blockers unless ($env{'request.course.id'});
8315: return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
1.1162 raeburn 8316: my %commblocks;
8317: if (ref($blocks) eq 'HASH') {
8318: %commblocks = %{$blocks};
8319: } else {
8320: %commblocks = &get_comm_blocks();
8321: }
1.1172.2.66 raeburn 8322: return %blockers unless (keys(%commblocks) > 0);
1.1163 raeburn 8323: my $navmap = Apache::lonnavmaps::navmap->new();
1.1172.2.66 raeburn 8324: return %blockers unless (ref($navmap));
8325: my $now = time;
1.1162 raeburn 8326: foreach my $block (keys(%commblocks)) {
8327: if ($block =~ /^(\d+)____(\d+)$/) {
8328: my ($start,$end) = ($1,$2);
8329: if ($start <= $now && $end >= $now) {
8330: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
8331: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
8332: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
1.1172.2.66 raeburn 8333: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
8334: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
1.1162 raeburn 8335: }
8336: }
8337: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
1.1172.2.66 raeburn 8338: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
8339: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1162 raeburn 8340: }
8341: }
8342: }
8343: }
8344: }
8345: } elsif ($block =~ /^firstaccess____(.+)$/) {
8346: my $item = $1;
1.1163 raeburn 8347: my @to_test;
1.1162 raeburn 8348: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
8349: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
1.1172.2.66 raeburn 8350: my @interval;
8351: my $type = 'map';
8352: if ($item eq 'course') {
8353: $type = 'course';
8354: @interval=&EXT("resource.0.interval");
8355: } else {
8356: if ($item =~ /___\d+___/) {
8357: $type = 'resource';
8358: @interval=&EXT("resource.0.interval",$item);
8359: if (ref($navmap)) {
8360: my $res = $navmap->getBySymb($item);
8361: push(@to_test,$res);
8362: }
1.1162 raeburn 8363: } else {
1.1172.2.66 raeburn 8364: my $mapsymb = &symbread($item,1);
8365: if ($mapsymb) {
8366: if (ref($navmap)) {
8367: my $mapres = $navmap->getBySymb($mapsymb);
8368: @to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1);
8369: foreach my $res (@to_test) {
8370: my $symb = $res->symb();
8371: next if ($symb eq $mapsymb);
8372: if ($symb ne '') {
8373: @interval=&EXT("resource.0.interval",$symb);
8374: if ($interval[1] eq 'map') {
8375: last;
1.1162 raeburn 8376: }
8377: }
8378: }
8379: }
8380: }
8381: }
1.1172.2.66 raeburn 8382: }
8383: if ($interval[0] =~ /^\d+$/) {
8384: my $first_access;
8385: if ($type eq 'resource') {
8386: $first_access=&get_first_access($interval[1],$item);
8387: } elsif ($type eq 'map') {
8388: $first_access=&get_first_access($interval[1],undef,$item);
8389: } else {
8390: $first_access=&get_first_access($interval[1]);
8391: }
8392: if ($first_access) {
8393: my $timesup = $first_access+$interval[0];
8394: if ($timesup > $now) {
8395: my $activeblock;
8396: foreach my $res (@to_test) {
8397: if ($res->answerable()) {
8398: $activeblock = 1;
8399: last;
8400: }
8401: }
8402: if ($activeblock) {
8403: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
8404: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
8405: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
8406: }
8407: }
8408: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
8409: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
8410: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1163 raeburn 8411: }
1.1162 raeburn 8412: }
8413: }
8414: }
8415: }
8416: }
8417: }
8418: }
8419: }
8420: }
1.1172.2.66 raeburn 8421: return %blockers;
1.1162 raeburn 8422: }
8423:
1.1172.2.66 raeburn 8424: sub has_comm_blocking {
8425: my ($priv,$symb,$uri,$blocks) = @_;
8426: my @blockers;
8427: return unless ($env{'request.course.id'});
8428: return unless ($priv eq 'bre');
8429: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
8430: return if ($env{'request.state'} eq 'construct');
8431: &load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks);
8432: return unless (keys(%cachedblockers) > 0);
8433: my (%possibles,@symbs);
8434: if (!$symb) {
8435: $symb = &symbread($uri,1,1,1,\%possibles);
1.1162 raeburn 8436: }
1.1172.2.66 raeburn 8437: if ($symb) {
8438: @symbs = ($symb);
8439: } elsif (keys(%possibles)) {
8440: @symbs = keys(%possibles);
8441: }
8442: my $noblock;
8443: foreach my $symb (@symbs) {
8444: last if ($noblock);
8445: my ($map,$resid,$resurl)=&decode_symb($symb);
8446: foreach my $block (keys(%cachedblockers)) {
8447: if ($block =~ /^firstaccess____(.+)$/) {
8448: my $item = $1;
8449: if (($item eq $map) || ($item eq $symb)) {
8450: $noblock = 1;
8451: last;
8452: }
1.1162 raeburn 8453: }
1.1172.2.66 raeburn 8454: if (ref($cachedblockers{$block}) eq 'HASH') {
8455: if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') {
8456: if ($cachedblockers{$block}{'resources'}{$symb}) {
8457: unless (grep(/^\Q$block\E$/,@blockers)) {
8458: push(@blockers,$block);
8459: }
8460: }
8461: }
8462: }
8463: if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') {
8464: if ($cachedblockers{$block}{'maps'}{$map}) {
8465: unless (grep(/^\Q$block\E$/,@blockers)) {
8466: push(@blockers,$block);
8467: }
8468: }
1.1162 raeburn 8469: }
8470: }
8471: }
1.1172.2.66 raeburn 8472: return if ($noblock);
8473: return @blockers;
8474: }
1.1162 raeburn 8475: }
8476:
1.1172.2.66 raeburn 8477: # -------------------------------- Deversion and split uri into path an filename
8478:
1.1133 foxr 8479: #
1.1172.2.66 raeburn 8480: # Removes the version from a URI and
1.1133 foxr 8481: # splits it in to its filename and path to the filename.
8482: # Seems like File::Basename could have done this more clearly.
8483: # Parameters:
8484: # $uri - input URI
8485: # Returns:
8486: # Two element list consisting of
8487: # $pathname - the URI up to and excluding the trailing /
8488: # $filename - The part of the URI following the last /
8489: # NOTE:
8490: # Another realization of this is simply:
8491: # use File::Basename;
8492: # ...
8493: # $uri = shift;
8494: # $filename = basename($uri);
8495: # $path = dirname($uri);
8496: # return ($filename, $path);
8497: #
8498: # The implementation below is probably faster however.
8499: #
1.710 albertel 8500: sub split_uri_for_cond {
8501: my $uri=&deversion(&declutter(shift));
8502: my @uriparts=split(/\//,$uri);
8503: my $filename=pop(@uriparts);
8504: my $pathname=join('/',@uriparts);
8505: return ($pathname,$filename);
8506: }
1.232 www 8507: # --------------------------------------------------- Is a resource on the map?
8508:
8509: sub is_on_map {
1.710 albertel 8510: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 8511: #Trying to find the conditional for the file
1.620 albertel 8512: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 8513: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 8514: if ($match) {
1.289 bowersj2 8515: return (1,$1);
8516: } else {
1.434 www 8517: return (0,0);
1.289 bowersj2 8518: }
1.12 www 8519: }
8520:
1.427 www 8521: # --------------------------------------------------------- Get symb from alias
8522:
8523: sub get_symb_from_alias {
8524: my $symb=shift;
8525: my ($map,$resid,$url)=&decode_symb($symb);
8526: # Already is a symb
8527: if ($url) { return $symb; }
8528: # Must be an alias
8529: my $aliassymb='';
8530: my %bighash;
1.620 albertel 8531: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 8532: &GDBM_READER(),0640)) {
8533: my $rid=$bighash{'mapalias_'.$symb};
8534: if ($rid) {
8535: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 8536: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
8537: $resid,$bighash{'src_'.$rid});
1.427 www 8538: }
8539: untie %bighash;
8540: }
8541: return $aliassymb;
8542: }
8543:
1.12 www 8544: # ----------------------------------------------------------------- Define Role
8545:
8546: sub definerole {
8547: if (allowed('mcr','/')) {
1.1172.2.84 raeburn 8548: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;
1.800 albertel 8549: foreach my $role (split(':',$sysrole)) {
8550: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8551: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
8552: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
8553: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8554: return "refused:s:$crole&$cqual";
8555: }
8556: }
1.191 harris41 8557: }
1.800 albertel 8558: foreach my $role (split(':',$domrole)) {
8559: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8560: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
8561: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
8562: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 8563: return "refused:d:$crole&$cqual";
8564: }
8565: }
1.191 harris41 8566: }
1.800 albertel 8567: foreach my $role (split(':',$courole)) {
8568: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8569: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
8570: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
8571: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8572: return "refused:c:$crole&$cqual";
8573: }
8574: }
1.191 harris41 8575: }
1.1172.2.84 raeburn 8576: my $uhome;
8577: if (($uname ne '') && ($udom ne '')) {
8578: $uhome = &homeserver($uname,$udom);
8579: return $uhome if ($uhome eq 'no_host');
8580: } else {
8581: $uname = $env{'user.name'};
8582: $udom = $env{'user.domain'};
8583: $uhome = $env{'user.home'};
8584: }
1.620 albertel 8585: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.1172.2.84 raeburn 8586: "$udom:$uname:rolesdef_$rolename=".
1.21 www 8587: escape($sysrole.'_'.$domrole.'_'.$courole);
1.1172.2.84 raeburn 8588: return reply($command,$uhome);
1.12 www 8589: } else {
8590: return 'refused';
8591: }
1.105 harris41 8592: }
8593:
8594: # ---------------- Make a metadata query against the network of library servers
8595:
8596: sub metadata_query {
1.1172.2.33 raeburn 8597: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
1.120 harris41 8598: my %rhash;
1.845 albertel 8599: my %libserv = &all_library();
1.244 matthew 8600: my @server_list = (defined($server_array) ? @$server_array
8601: : keys(%libserv) );
8602: for my $server (@server_list) {
1.1172.2.33 raeburn 8603: my $domains = '';
8604: if (ref($domains_hash) eq 'HASH') {
8605: $domains = $domains_hash->{$server};
8606: }
1.118 harris41 8607: unless ($custom or $customshow) {
1.1172.2.33 raeburn 8608: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
1.118 harris41 8609: $rhash{$server}=$reply;
8610: }
8611: else {
8612: my $reply=&reply("querysend:".&escape($query).':'.
1.1172.2.33 raeburn 8613: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
1.118 harris41 8614: $server);
8615: $rhash{$server}=$reply;
8616: }
1.112 harris41 8617: }
1.118 harris41 8618: return \%rhash;
1.240 www 8619: }
8620:
8621: # ----------------------------------------- Send log queries and wait for reply
8622:
8623: sub log_query {
8624: my ($uname,$udom,$query,%filters)=@_;
8625: my $uhome=&homeserver($uname,$udom);
8626: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 8627: my $uhost=&hostname($uhome);
1.800 albertel 8628: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 8629: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
8630: $uhome);
1.479 albertel 8631: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 8632: return get_query_reply($queryid);
8633: }
8634:
1.818 raeburn 8635: # -------------------------- Update MySQL table for portfolio file
8636:
8637: sub update_portfolio_table {
1.821 raeburn 8638: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 8639: if ($group ne '') {
8640: $file_name =~s /^\Q$group\E//;
8641: }
1.818 raeburn 8642: my $homeserver = &homeserver($uname,$udom);
8643: my $queryid=
1.821 raeburn 8644: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
8645: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 8646: my $reply = &get_query_reply($queryid);
8647: return $reply;
8648: }
8649:
1.899 raeburn 8650: # -------------------------- Update MySQL allusers table
8651:
8652: sub update_allusers_table {
8653: my ($uname,$udom,$names) = @_;
8654: my $homeserver = &homeserver($uname,$udom);
8655: my $queryid=
8656: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
8657: 'lastname='.&escape($names->{'lastname'}).'%%'.
8658: 'firstname='.&escape($names->{'firstname'}).'%%'.
8659: 'middlename='.&escape($names->{'middlename'}).'%%'.
8660: 'generation='.&escape($names->{'generation'}).'%%'.
8661: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
8662: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 8663: return;
1.899 raeburn 8664: }
8665:
1.508 raeburn 8666: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 8667:
8668: sub fetch_enrollment_query {
1.511 raeburn 8669: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.1172.2.79 raeburn 8670: my ($homeserver,$sleep,$loopmax);
1.547 raeburn 8671: my $maxtries = 1;
1.508 raeburn 8672: if ($context eq 'automated') {
8673: $homeserver = $perlvar{'lonHostID'};
1.1172.2.79 raeburn 8674: $sleep = 2;
8675: $loopmax = 100;
1.547 raeburn 8676: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 8677: } else {
8678: $homeserver = &homeserver($cnum,$dom);
8679: }
1.838 albertel 8680: my $host=&hostname($homeserver);
1.506 raeburn 8681: my $cmd = '';
1.1000 raeburn 8682: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 8683: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 8684: }
8685: $cmd =~ s/%%$//;
8686: $cmd = &escape($cmd);
8687: my $query = 'fetchenrollment';
1.620 albertel 8688: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 8689: unless ($queryid=~/^\Q$host\E\_/) {
8690: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
8691: return 'error: '.$queryid;
8692: }
1.1172.2.93 raeburn 8693: my $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8694: my $tries = 1;
8695: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1.1172.2.79 raeburn 8696: $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8697: $tries ++;
8698: }
1.526 raeburn 8699: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 8700: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 8701: } else {
1.901 albertel 8702: my @responses = split(/:/,$reply);
1.1172.2.82 raeburn 8703: if (grep { $_ eq $homeserver } ¤t_machine_ids()) {
1.800 albertel 8704: foreach my $line (@responses) {
8705: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 8706: $$replyref{$key} = $value;
8707: }
8708: } else {
1.1117 foxr 8709: my $pathname = LONCAPA::tempdir();
1.800 albertel 8710: foreach my $line (@responses) {
8711: my ($key,$value) = split(/=/,$line);
1.506 raeburn 8712: $$replyref{$key} = $value;
8713: if ($value > 0) {
1.800 albertel 8714: foreach my $item (@{$$affiliatesref{$key}}) {
8715: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 8716: my $destname = $pathname.'/'.$filename;
8717: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 8718: if ($xml_classlist =~ /^error/) {
8719: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
8720: } else {
1.1172.2.96 raeburn 8721: if ( open(FILE,">",$destname) ) {
1.506 raeburn 8722: print FILE &unescape($xml_classlist);
8723: close(FILE);
1.526 raeburn 8724: } else {
8725: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 8726: }
8727: }
8728: }
8729: }
8730: }
8731: }
8732: return 'ok';
8733: }
8734: return 'error';
8735: }
8736:
1.242 www 8737: sub get_query_reply {
1.1172.2.79 raeburn 8738: my ($queryid,$sleep,$loopmax) = @_;
8739: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) {
8740: $sleep = 0.2;
8741: }
8742: if (($loopmax eq '') || ($loopmax =~ /\D/)) {
8743: $loopmax = 100;
8744: }
1.1117 foxr 8745: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 8746: my $reply='';
1.1172.2.79 raeburn 8747: for (1..$loopmax) {
8748: sleep($sleep);
1.240 www 8749: if (-e $replyfile.'.end') {
1.1172.2.96 raeburn 8750: if (open(my $fh,"<",$replyfile)) {
1.904 albertel 8751: $reply = join('',<$fh>);
8752: close($fh);
1.240 www 8753: } else { return 'error: reply_file_error'; }
1.242 www 8754: return &unescape($reply);
8755: }
1.240 www 8756: }
1.242 www 8757: return 'timeout:'.$queryid;
1.240 www 8758: }
8759:
8760: sub courselog_query {
1.241 www 8761: #
8762: # possible filters:
8763: # url: url or symb
8764: # username
8765: # domain
8766: # action: view, submit, grade
8767: # start: timestamp
8768: # end: timestamp
8769: #
1.240 www 8770: my (%filters)=@_;
1.620 albertel 8771: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 8772: if ($filters{'url'}) {
8773: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
8774: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
8775: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
8776: }
1.620 albertel 8777: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
8778: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 8779: return &log_query($cname,$cdom,'courselog',%filters);
8780: }
8781:
8782: sub userlog_query {
1.858 raeburn 8783: #
8784: # possible filters:
8785: # action: log check role
8786: # start: timestamp
8787: # end: timestamp
8788: #
1.240 www 8789: my ($uname,$udom,%filters)=@_;
8790: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 8791: }
8792:
1.506 raeburn 8793: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
8794:
8795: sub auto_run {
1.508 raeburn 8796: my ($cnum,$cdom) = @_;
1.876 raeburn 8797: my $response = 0;
8798: my $settings;
8799: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
8800: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
8801: $settings = $domconfig{'autoenroll'};
8802: if ($settings->{'run'} eq '1') {
8803: $response = 1;
8804: }
8805: } else {
1.934 raeburn 8806: my $homeserver;
8807: if (&is_course($cdom,$cnum)) {
8808: $homeserver = &homeserver($cnum,$cdom);
8809: } else {
8810: $homeserver = &domain($cdom,'primary');
8811: }
8812: if ($homeserver ne 'no_host') {
8813: $response = &reply('autorun:'.$cdom,$homeserver);
8814: }
1.876 raeburn 8815: }
1.506 raeburn 8816: return $response;
8817: }
1.776 albertel 8818:
1.506 raeburn 8819: sub auto_get_sections {
1.508 raeburn 8820: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 8821: my $homeserver;
8822: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8823: $homeserver = &homeserver($cnum,$cdom);
8824: }
8825: if (!defined($homeserver)) {
8826: if ($cdom =~ /^$match_domain$/) {
8827: $homeserver = &domain($cdom,'primary');
8828: }
8829: }
8830: my @secs;
8831: if (defined($homeserver)) {
8832: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
8833: unless ($response eq 'refused') {
8834: @secs = split(/:/,$response);
8835: }
1.506 raeburn 8836: }
8837: return @secs;
8838: }
1.776 albertel 8839:
1.506 raeburn 8840: sub auto_new_course {
1.1099 raeburn 8841: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 8842: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 8843: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 8844: return $response;
8845: }
1.776 albertel 8846:
1.506 raeburn 8847: sub auto_validate_courseID {
1.508 raeburn 8848: my ($cnum,$cdom,$inst_course_id) = @_;
8849: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 8850: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 8851: return $response;
8852: }
1.776 albertel 8853:
1.1007 raeburn 8854: sub auto_validate_instcode {
1.1020 raeburn 8855: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 8856: my ($homeserver,$response);
8857: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8858: $homeserver = &homeserver($cnum,$cdom);
8859: }
8860: if (!defined($homeserver)) {
8861: if ($cdom =~ /^$match_domain$/) {
8862: $homeserver = &domain($cdom,'primary');
8863: }
8864: }
1.1065 raeburn 8865: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
8866: &escape($instcode).':'.&escape($owner),$homeserver));
1.1172.2.19 raeburn 8867: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
8868: return ($outcome,$description,$defaultcredits);
1.1007 raeburn 8869: }
8870:
1.506 raeburn 8871: sub auto_create_password {
1.873 raeburn 8872: my ($cnum,$cdom,$authparam,$udom) = @_;
8873: my ($homeserver,$response);
1.506 raeburn 8874: my $create_passwd = 0;
8875: my $authchk = '';
1.873 raeburn 8876: if ($udom =~ /^$match_domain$/) {
8877: $homeserver = &domain($udom,'primary');
8878: }
8879: if ($homeserver eq '') {
8880: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8881: $homeserver = &homeserver($cnum,$cdom);
8882: }
8883: }
8884: if ($homeserver eq '') {
8885: $authchk = 'nodomain';
1.506 raeburn 8886: } else {
1.873 raeburn 8887: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
8888: if ($response eq 'refused') {
8889: $authchk = 'refused';
8890: } else {
1.901 albertel 8891: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 8892: }
1.506 raeburn 8893: }
8894: return ($authparam,$create_passwd,$authchk);
8895: }
8896:
1.706 raeburn 8897: sub auto_photo_permission {
8898: my ($cnum,$cdom,$students) = @_;
8899: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 8900: my ($outcome,$perm_reqd,$conditions) =
8901: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 8902: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8903: return (undef,undef);
8904: }
1.706 raeburn 8905: return ($outcome,$perm_reqd,$conditions);
8906: }
8907:
8908: sub auto_checkphotos {
8909: my ($uname,$udom,$pid) = @_;
8910: my $homeserver = &homeserver($uname,$udom);
8911: my ($result,$resulttype);
8912: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 8913: &escape($uname).':'.&escape($pid),
8914: $homeserver));
1.709 albertel 8915: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8916: return (undef,undef);
8917: }
1.706 raeburn 8918: if ($outcome) {
8919: ($result,$resulttype) = split(/:/,$outcome);
8920: }
8921: return ($result,$resulttype);
8922: }
8923:
8924: sub auto_photochoice {
8925: my ($cnum,$cdom) = @_;
8926: my $homeserver = &homeserver($cnum,$cdom);
8927: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 8928: &escape($cdom),
8929: $homeserver)));
1.709 albertel 8930: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8931: return (undef,undef);
8932: }
1.706 raeburn 8933: return ($update,$comment);
8934: }
8935:
8936: sub auto_photoupdate {
8937: my ($affiliatesref,$dom,$cnum,$photo) = @_;
8938: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 8939: my $host=&hostname($homeserver);
1.706 raeburn 8940: my $cmd = '';
8941: my $maxtries = 1;
1.800 albertel 8942: foreach my $affiliate (keys(%{$affiliatesref})) {
8943: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 8944: }
8945: $cmd =~ s/%%$//;
8946: $cmd = &escape($cmd);
8947: my $query = 'institutionalphotos';
8948: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
8949: unless ($queryid=~/^\Q$host\E\_/) {
8950: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
8951: return 'error: '.$queryid;
8952: }
8953: my $reply = &get_query_reply($queryid);
8954: my $tries = 1;
8955: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
8956: $reply = &get_query_reply($queryid);
8957: $tries ++;
8958: }
8959: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
8960: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
8961: } else {
8962: my @responses = split(/:/,$reply);
8963: my $outcome = shift(@responses);
8964: foreach my $item (@responses) {
8965: my ($key,$value) = split(/=/,$item);
8966: $$photo{$key} = $value;
8967: }
8968: return $outcome;
8969: }
8970: return 'error';
8971: }
8972:
1.521 raeburn 8973: sub auto_instcode_format {
1.793 albertel 8974: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
8975: $cat_order) = @_;
1.521 raeburn 8976: my $courses = '';
1.772 raeburn 8977: my @homeservers;
1.521 raeburn 8978: if ($caller eq 'global') {
1.841 albertel 8979: my %servers = &get_servers($codedom,'library');
8980: foreach my $tryserver (keys(%servers)) {
8981: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8982: push(@homeservers,$tryserver);
8983: }
1.584 raeburn 8984: }
1.1022 raeburn 8985: } elsif ($caller eq 'requests') {
8986: if ($codedom =~ /^$match_domain$/) {
8987: my $chome = &domain($codedom,'primary');
8988: unless ($chome eq 'no_host') {
8989: push(@homeservers,$chome);
8990: }
8991: }
1.521 raeburn 8992: } else {
1.772 raeburn 8993: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 8994: }
1.793 albertel 8995: foreach my $code (keys(%{$instcodes})) {
8996: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 8997: }
8998: chop($courses);
1.772 raeburn 8999: my $ok_response = 0;
9000: my $response;
9001: while (@homeservers > 0 && $ok_response == 0) {
9002: my $server = shift(@homeservers);
9003: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
9004: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
9005: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 9006: split(/:/,$response);
1.772 raeburn 9007: %{$codes} = (%{$codes},&str2hash($codes_str));
9008: push(@{$codetitles},&str2array($codetitles_str));
9009: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
9010: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
9011: $ok_response = 1;
9012: }
9013: }
9014: if ($ok_response) {
1.521 raeburn 9015: return 'ok';
1.772 raeburn 9016: } else {
9017: return $response;
1.521 raeburn 9018: }
9019: }
9020:
1.792 raeburn 9021: sub auto_instcode_defaults {
9022: my ($domain,$returnhash,$code_order) = @_;
9023: my @homeservers;
1.841 albertel 9024:
9025: my %servers = &get_servers($domain,'library');
9026: foreach my $tryserver (keys(%servers)) {
9027: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
9028: push(@homeservers,$tryserver);
9029: }
1.792 raeburn 9030: }
1.841 albertel 9031:
1.792 raeburn 9032: my $response;
1.841 albertel 9033: foreach my $server (@homeservers) {
1.792 raeburn 9034: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 9035: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
9036:
9037: foreach my $pair (split(/\&/,$response)) {
9038: my ($name,$value)=split(/\=/,$pair);
9039: if ($name eq 'code_order') {
9040: @{$code_order} = split(/\&/,&unescape($value));
9041: } else {
9042: $returnhash->{&unescape($name)}=&unescape($value);
9043: }
9044: }
9045: return 'ok';
1.792 raeburn 9046: }
1.841 albertel 9047:
9048: return $response;
1.1003 raeburn 9049: }
9050:
9051: sub auto_possible_instcodes {
1.1007 raeburn 9052: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
9053: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
9054: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
9055: return;
9056: }
1.1003 raeburn 9057: my (@homeservers,$uhome);
9058: if (defined(&domain($domain,'primary'))) {
9059: $uhome=&domain($domain,'primary');
9060: push(@homeservers,&domain($domain,'primary'));
9061: } else {
9062: my %servers = &get_servers($domain,'library');
9063: foreach my $tryserver (keys(%servers)) {
9064: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
9065: push(@homeservers,$tryserver);
9066: }
9067: }
9068: }
9069: my $response;
9070: foreach my $server (@homeservers) {
9071: $response=&reply('autopossibleinstcodes:'.$domain,$server);
9072: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 9073: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
9074: split(':',$response);
9075: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
9076: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 9077: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 9078: my ($name,$value)=split('=',$item);
9079: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 9080: }
9081: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 9082: my ($name,$value)=split('=',$item);
9083: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 9084: }
9085: return 'ok';
9086: }
9087: return $response;
9088: }
1.792 raeburn 9089:
1.1010 raeburn 9090: sub auto_courserequest_checks {
9091: my ($dom) = @_;
1.1020 raeburn 9092: my ($homeserver,%validations);
9093: if ($dom =~ /^$match_domain$/) {
9094: $homeserver = &domain($dom,'primary');
9095: }
9096: unless ($homeserver eq 'no_host') {
9097: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
9098: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
9099: my @items = split(/&/,$response);
9100: foreach my $item (@items) {
9101: my ($key,$value) = split('=',$item);
9102: $validations{&unescape($key)} = &thaw_unescape($value);
9103: }
9104: }
9105: }
1.1010 raeburn 9106: return %validations;
9107: }
9108:
1.1020 raeburn 9109: sub auto_courserequest_validation {
1.1172.2.43 raeburn 9110: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
1.1020 raeburn 9111: my ($homeserver,$response);
9112: if ($dom =~ /^$match_domain$/) {
9113: $homeserver = &domain($dom,'primary');
9114: }
1.1172.2.43 raeburn 9115: unless ($homeserver eq 'no_host') {
9116: my $customdata;
9117: if (ref($custominfo) eq 'HASH') {
9118: $customdata = &freeze_escape($custominfo);
9119: }
1.1020 raeburn 9120: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 9121: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1172.2.43 raeburn 9122: ':'.&escape($instcode).':'.&escape($instseclist).':'.
9123: $customdata,$homeserver));
1.1020 raeburn 9124: }
9125: return $response;
9126: }
9127:
1.777 albertel 9128: sub auto_validate_class_sec {
1.918 raeburn 9129: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 9130: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 9131: my $ownerlist;
9132: if (ref($owners) eq 'ARRAY') {
9133: $ownerlist = join(',',@{$owners});
9134: } else {
9135: $ownerlist = $owners;
9136: }
1.773 raeburn 9137: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 9138: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 9139: return $response;
9140: }
9141:
1.1172.2.94 raeburn 9142: sub auto_validate_instclasses {
9143: my ($cdom,$cnum,$owners,$classesref) = @_;
9144: my ($homeserver,%validations);
9145: $homeserver = &homeserver($cnum,$cdom);
9146: unless ($homeserver eq 'no_host') {
9147: my $ownerlist;
9148: if (ref($owners) eq 'ARRAY') {
9149: $ownerlist = join(',',@{$owners});
9150: } else {
9151: $ownerlist = $owners;
9152: }
9153: if (ref($classesref) eq 'HASH') {
9154: my $classes = &freeze_escape($classesref);
9155: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
9156: ':'.$cdom.':'.$classes,$homeserver);
9157: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
9158: my @items = split(/&/,$response);
9159: foreach my $item (@items) {
9160: my ($key,$value) = split('=',$item);
9161: $validations{&unescape($key)} = &thaw_unescape($value);
9162: }
9163: }
9164: }
9165: }
9166: return %validations;
9167: }
9168:
1.1172.2.38 raeburn 9169: sub auto_crsreq_update {
9170: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
1.1172.2.45 raeburn 9171: $code,$accessstart,$accessend,$inbound) = @_;
1.1172.2.38 raeburn 9172: my ($homeserver,%crsreqresponse);
9173: if ($cdom =~ /^$match_domain$/) {
9174: $homeserver = &domain($cdom,'primary');
9175: }
9176: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
9177: my $info;
9178: if (ref($inbound) eq 'HASH') {
9179: $info = &freeze_escape($inbound);
9180: }
9181: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
9182: ':'.&escape($action).':'.&escape($ownername).':'.
9183: &escape($ownerdomain).':'.&escape($fullname).':'.
1.1172.2.45 raeburn 9184: &escape($title).':'.&escape($code).':'.
9185: &escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);
1.1172.2.38 raeburn 9186: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
9187: my @items = split(/&/,$response);
9188: foreach my $item (@items) {
9189: my ($key,$value) = split('=',$item);
9190: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
9191: }
9192: }
9193: }
9194: return \%crsreqresponse;
9195: }
9196:
1.1172.2.78 raeburn 9197: sub auto_export_grades {
9198: my ($cdom,$cnum,$inforef,$gradesref) = @_;
9199: my ($homeserver,%exportresponse);
9200: if ($cdom =~ /^$match_domain$/) {
9201: $homeserver = &domain($cdom,'primary');
9202: }
9203: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
9204: my $info;
9205: if (ref($inforef) eq 'HASH') {
9206: $info = &freeze_escape($inforef);
9207: }
9208: if (ref($gradesref) eq 'HASH') {
9209: my $grades = &freeze_escape($gradesref);
9210: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
9211: $info.':'.$grades,$homeserver);
9212: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) {
9213: my @items = split(/&/,$response);
9214: foreach my $item (@items) {
9215: my ($key,$value) = split('=',$item);
9216: $exportresponse{&unescape($key)} = &thaw_unescape($value);
9217: }
9218: }
9219: }
9220: }
9221: return \%exportresponse;
9222: }
9223:
1.1172.2.68 raeburn 9224: sub check_instcode_cloning {
9225: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
9226: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
9227: return;
9228: }
9229: my $canclone;
9230: if (@{$code_order} > 0) {
9231: my $instcoderegexp ='^';
9232: my @clonecodes = split(/\&/,$cloner);
9233: foreach my $item (@{$code_order}) {
9234: if (grep(/^\Q$item\E=/,@clonecodes)) {
9235: foreach my $pair (@clonecodes) {
9236: my ($key,$val) = split(/\=/,$pair,2);
9237: $val = &unescape($val);
9238: if ($key eq $item) {
9239: $instcoderegexp .= '('.$val.')';
9240: last;
9241: }
9242: }
9243: } else {
9244: $instcoderegexp .= $codedefaults->{$item};
9245: }
9246: }
9247: $instcoderegexp .= '$';
9248: my (@from,@to);
9249: eval {
9250: (@from) = ($clonefromcode =~ /$instcoderegexp/);
9251: (@to) = ($clonetocode =~ /$instcoderegexp/);
9252: };
9253: if ((@from > 0) && (@to > 0)) {
9254: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
9255: if (!@diffs) {
9256: $canclone = 1;
9257: }
9258: }
9259: }
9260: return $canclone;
9261: }
9262:
9263: sub default_instcode_cloning {
9264: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
9265: my (%codedefaults,@code_order,$canclone);
9266: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
9267: %codedefaults = %{$codedefaultsref};
9268: @code_order = @{$codeorderref};
9269: } elsif ($clonedom) {
9270: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
9271: }
9272: if (($domdefclone) && (@code_order)) {
9273: my @clonecodes = split(/\+/,$domdefclone);
9274: my $instcoderegexp ='^';
9275: foreach my $item (@code_order) {
9276: if (grep(/^\Q$item\E$/,@clonecodes)) {
9277: $instcoderegexp .= '('.$codedefaults{$item}.')';
9278: } else {
9279: $instcoderegexp .= $codedefaults{$item};
9280: }
9281: }
9282: $instcoderegexp .= '$';
9283: my (@from,@to);
9284: eval {
9285: (@from) = ($clonefromcode =~ /$instcoderegexp/);
9286: (@to) = ($clonetocode =~ /$instcoderegexp/);
9287: };
9288: if ((@from > 0) && (@to > 0)) {
9289: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
9290: if (!@diffs) {
9291: $canclone = 1;
9292: }
9293: }
9294: }
9295: return $canclone;
9296: }
9297:
1.679 raeburn 9298: # ------------------------------------------------------- Course Group routines
9299:
9300: sub get_coursegroups {
1.809 raeburn 9301: my ($cdom,$cnum,$group,$namespace) = @_;
9302: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 9303: }
9304:
1.679 raeburn 9305: sub modify_coursegroup {
9306: my ($cdom,$cnum,$groupsettings) = @_;
9307: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
9308: }
9309:
1.809 raeburn 9310: sub toggle_coursegroup_status {
9311: my ($cdom,$cnum,$group,$action) = @_;
9312: my ($from_namespace,$to_namespace);
9313: if ($action eq 'delete') {
9314: $from_namespace = 'coursegroups';
9315: $to_namespace = 'deleted_groups';
9316: } else {
9317: $from_namespace = 'deleted_groups';
9318: $to_namespace = 'coursegroups';
9319: }
9320: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 9321: if (my $tmp = &error(%curr_group)) {
9322: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
9323: return ('read error',$tmp);
9324: } else {
9325: my %savedsettings = %curr_group;
1.809 raeburn 9326: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 9327: my $deloutcome;
9328: if ($result eq 'ok') {
1.809 raeburn 9329: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 9330: } else {
9331: return ('write error',$result);
9332: }
9333: if ($deloutcome eq 'ok') {
9334: return 'ok';
9335: } else {
9336: return ('delete error',$deloutcome);
9337: }
9338: }
9339: }
9340:
1.679 raeburn 9341: sub modify_group_roles {
1.957 raeburn 9342: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 9343: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
9344: my $role = 'gr/'.&escape($userprivs);
9345: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 9346: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 9347: if ($result eq 'ok') {
9348: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
9349: }
1.679 raeburn 9350: return $result;
9351: }
9352:
9353: sub modify_coursegroup_membership {
9354: my ($cdom,$cnum,$membership) = @_;
9355: my $result = &put('groupmembership',$membership,$cdom,$cnum);
9356: return $result;
9357: }
9358:
1.682 raeburn 9359: sub get_active_groups {
9360: my ($udom,$uname,$cdom,$cnum) = @_;
9361: my $now = time;
9362: my %groups = ();
9363: foreach my $key (keys(%env)) {
1.811 albertel 9364: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 9365: my ($start,$end) = split(/\./,$env{$key});
9366: if (($end!=0) && ($end<$now)) { next; }
9367: if (($start!=0) && ($start>$now)) { next; }
9368: if ($1 eq $cdom && $2 eq $cnum) {
9369: $groups{$3} = $env{$key} ;
9370: }
9371: }
9372: }
9373: return %groups;
9374: }
9375:
1.683 raeburn 9376: sub get_group_membership {
9377: my ($cdom,$cnum,$group) = @_;
9378: return(&dump('groupmembership',$cdom,$cnum,$group));
9379: }
9380:
9381: sub get_users_groups {
9382: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 9383: my @usersgroups;
1.683 raeburn 9384: my $cachetime=1800;
9385:
9386: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 9387: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
9388: if (defined($cached)) {
1.734 albertel 9389: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 9390: } else {
9391: $grouplist = '';
1.816 raeburn 9392: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 9393: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 9394: my $access_end = $env{'course.'.$courseid.
9395: '.default_enrollment_end_date'};
9396: my $now = time;
9397: foreach my $key (keys(%roleshash)) {
9398: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
9399: my $group = $1;
9400: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
9401: my $start = $2;
9402: my $end = $1;
9403: if ($start == -1) { next; } # deleted from group
9404: if (($start!=0) && ($start>$now)) { next; }
9405: if (($end!=0) && ($end<$now)) {
9406: if ($access_end && $access_end < $now) {
9407: if ($access_end - $end < 86400) {
9408: push(@usersgroups,$group);
1.733 raeburn 9409: }
9410: }
1.817 raeburn 9411: next;
1.733 raeburn 9412: }
1.817 raeburn 9413: push(@usersgroups,$group);
1.683 raeburn 9414: }
9415: }
9416: }
1.817 raeburn 9417: @usersgroups = &sort_course_groups($courseid,@usersgroups);
9418: $grouplist = join(':',@usersgroups);
9419: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 9420: }
1.733 raeburn 9421: return @usersgroups;
1.683 raeburn 9422: }
9423:
9424: sub devalidate_getgroups_cache {
9425: my ($udom,$uname,$cdom,$cnum)=@_;
9426: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 9427:
1.683 raeburn 9428: my $hashid="$udom:$uname:$courseid";
9429: &devalidate_cache_new('getgroups',$hashid);
9430: }
9431:
1.12 www 9432: # ------------------------------------------------------------------ Plain Text
9433:
9434: sub plaintext {
1.988 raeburn 9435: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 9436: if ($short =~ m{^cr/}) {
1.758 albertel 9437: return (split('/',$short))[-1];
9438: }
1.742 raeburn 9439: if (!defined($cid)) {
9440: $cid = $env{'request.course.id'};
9441: }
9442: my %rolenames = (
1.1008 raeburn 9443: Course => 'std',
9444: Community => 'alt1',
1.742 raeburn 9445: );
1.1037 raeburn 9446: if ($cid ne '') {
9447: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
9448: unless ($forcedefault) {
9449: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
9450: &Apache::lonlocal::mt_escape(\$roletext);
9451: return &Apache::lonlocal::mt($roletext);
9452: }
9453: }
9454: }
9455: if ((defined($type)) && (defined($rolenames{$type})) &&
9456: (defined($rolenames{$type})) &&
9457: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 9458: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 9459: } elsif ($cid ne '') {
9460: my $crstype = $env{'course.'.$cid.'.type'};
9461: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
9462: (defined($prp{$short}{$rolenames{$crstype}}))) {
9463: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
9464: }
1.742 raeburn 9465: }
1.1037 raeburn 9466: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 9467: }
9468:
9469: # ----------------------------------------------------------------- Assign Role
9470:
9471: sub assignrole {
1.957 raeburn 9472: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
9473: $context)=@_;
1.21 www 9474: my $mrole;
9475: if ($role =~ /^cr\//) {
1.393 www 9476: my $cwosec=$url;
1.811 albertel 9477: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 9478: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 9479: my $refused = 1;
9480: if ($context eq 'requestcourses') {
9481: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
9482: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
9483: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
9484: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
9485: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9486: if ($crsenv{'internal.courseowner'} eq
9487: $env{'user.name'}.':'.$env{'user.domain'}) {
9488: $refused = '';
9489: }
9490: }
9491: }
9492: }
9493: }
9494: if ($refused) {
9495: &logthis('Refused custom assignrole: '.
9496: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
9497: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
9498: return 'refused';
9499: }
1.104 www 9500: }
1.21 www 9501: $mrole='cr';
1.678 raeburn 9502: } elsif ($role =~ /^gr\//) {
9503: my $cwogrp=$url;
1.811 albertel 9504: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 9505: unless (&allowed('mdg',$cwogrp)) {
9506: &logthis('Refused group assignrole: '.
9507: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
9508: $env{'user.name'}.' at '.$env{'user.domain'});
9509: return 'refused';
9510: }
9511: $mrole='gr';
1.21 www 9512: } else {
1.82 www 9513: my $cwosec=$url;
1.811 albertel 9514: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 9515: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
9516: my $refused;
9517: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
9518: if (!(&allowed('c'.$role,$url))) {
9519: $refused = 1;
9520: }
9521: } else {
9522: $refused = 1;
9523: }
1.947 raeburn 9524: if ($refused) {
1.1045 raeburn 9525: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
9526: if (!$selfenroll && $context eq 'course') {
9527: my %crsenv;
9528: if ($role eq 'cc' || $role eq 'co') {
9529: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9530: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
9531: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
9532: if ($crsenv{'internal.courseowner'} eq
9533: $env{'user.name'}.':'.$env{'user.domain'}) {
9534: $refused = '';
9535: }
9536: }
9537: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
9538: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
9539: if ($crsenv{'internal.courseowner'} eq
9540: $env{'user.name'}.':'.$env{'user.domain'}) {
9541: $refused = '';
9542: }
9543: }
9544: }
9545: }
9546: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 9547: $refused = '';
1.1017 raeburn 9548: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 9549: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 9550: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 9551: my $wrongcc;
9552: if ($cnum =~ /^$match_community$/) {
9553: $wrongcc = 1 if ($role eq 'cc');
9554: } else {
9555: $wrongcc = 1 if ($role eq 'co');
9556: }
9557: unless ($wrongcc) {
9558: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9559: if ($crsenv{'internal.courseowner'} eq
9560: $env{'user.name'}.':'.$env{'user.domain'}) {
9561: $refused = '';
9562: }
1.1017 raeburn 9563: }
9564: }
1.1172.2.9 raeburn 9565: } elsif ($context eq 'requestauthor') {
9566: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
9567: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
9568: if ($env{'environment.requestauthor'} eq 'automatic') {
9569: $refused = '';
9570: } else {
9571: my %domdefaults = &get_domain_defaults($udom);
9572: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
9573: my $checkbystatus;
9574: if ($env{'user.adv'}) {
9575: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
9576: if ($disposition eq 'automatic') {
9577: $refused = '';
9578: } elsif ($disposition eq '') {
9579: $checkbystatus = 1;
9580: }
9581: } else {
9582: $checkbystatus = 1;
9583: }
9584: if ($checkbystatus) {
9585: if ($env{'environment.inststatus'}) {
9586: my @inststatuses = split(/,/,$env{'environment.inststatus'});
9587: foreach my $type (@inststatuses) {
9588: if (($type ne '') &&
9589: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
9590: $refused = '';
9591: }
9592: }
9593: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
9594: $refused = '';
9595: }
9596: }
9597: }
9598: }
9599: }
1.1017 raeburn 9600: }
9601: if ($refused) {
1.947 raeburn 9602: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
9603: ' '.$role.' '.$end.' '.$start.' by '.
9604: $env{'user.name'}.' at '.$env{'user.domain'});
9605: return 'refused';
9606: }
1.932 raeburn 9607: }
1.1131 raeburn 9608: } elsif ($role eq 'au') {
9609: if ($url ne '/'.$udom.'/') {
9610: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
9611: ' to assign author role for '.$uname.':'.$udom.
9612: ' in domain: '.$url.' refused (wrong domain).');
9613: return 'refused';
9614: }
1.104 www 9615: }
1.21 www 9616: $mrole=$role;
9617: }
1.620 albertel 9618: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 9619: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 9620: if ($end) { $command.='_'.$end; }
1.21 www 9621: if ($start) {
9622: if ($end) {
1.81 www 9623: $command.='_'.$start;
1.21 www 9624: } else {
1.81 www 9625: $command.='_0_'.$start;
1.21 www 9626: }
9627: }
1.739 raeburn 9628: my $origstart = $start;
9629: my $origend = $end;
1.957 raeburn 9630: my $delflag;
1.357 www 9631: # actually delete
9632: if ($deleteflag) {
1.373 www 9633: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 9634: # modify command to delete the role
1.620 albertel 9635: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 9636: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 9637: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 9638: # set start and finish to negative values for userrolelog
9639: $start=-1;
9640: $end=-1;
1.957 raeburn 9641: $delflag = 1;
1.357 www 9642: }
9643: }
9644: # send command
1.349 www 9645: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 9646: # log new user role if status is ok
1.349 www 9647: if ($answer eq 'ok') {
1.663 raeburn 9648: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1172.2.9 raeburn 9649: if (($role eq 'cc') || ($role eq 'in') ||
9650: ($role eq 'ep') || ($role eq 'ad') ||
9651: ($role eq 'ta') || ($role eq 'st') ||
9652: ($role=~/^cr/) || ($role eq 'gr') ||
9653: ($role eq 'co')) {
1.1172.2.13 raeburn 9654: # for course roles, perform group memberships changes triggered by role change.
9655: unless ($role =~ /^gr/) {
9656: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
9657: $origstart,$selfenroll,$context);
9658: }
1.1172.2.9 raeburn 9659: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9660: $selfenroll,$context);
9661: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
1.1172.2.90 raeburn 9662: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') ||
9663: ($role eq 'da')) {
1.1172.2.9 raeburn 9664: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9665: $context);
9666: } elsif (($role eq 'ca') || ($role eq 'aa')) {
9667: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9668: $context);
9669: }
1.1053 raeburn 9670: if ($role eq 'cc') {
9671: &autoupdate_coowners($url,$end,$start,$uname,$udom);
9672: }
1.349 www 9673: }
9674: return $answer;
1.169 harris41 9675: }
9676:
1.1053 raeburn 9677: sub autoupdate_coowners {
9678: my ($url,$end,$start,$uname,$udom) = @_;
9679: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
9680: if (($cdom ne '') && ($cnum ne '')) {
9681: my $now = time;
9682: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
9683: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
9684: my %coursehash = &coursedescription($cdom.'_'.$cnum);
9685: my $instcode = $coursehash{'internal.coursecode'};
9686: if ($instcode ne '') {
1.1056 raeburn 9687: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
9688: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 9689: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 9690: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
9691: if ($result eq 'valid') {
9692: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 9693: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9694: push(@newcoowners,$coowner);
9695: }
9696: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
9697: push(@newcoowners,$uname.':'.$udom);
9698: }
9699: @newcoowners = sort(@newcoowners);
9700: } else {
9701: push(@newcoowners,$uname.':'.$udom);
9702: }
9703: } else {
9704: if ($coursehash{'internal.co-owners'}) {
9705: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9706: unless ($coowner eq $uname.':'.$udom) {
9707: push(@newcoowners,$coowner);
9708: }
9709: }
9710: unless (@newcoowners > 0) {
9711: $delcoowners = 1;
9712: $coowners = '';
9713: }
9714: }
9715: }
9716: if (@newcoowners || $delcoowners) {
9717: &store_coowners($cdom,$cnum,$coursehash{'home'},
9718: $delcoowners,@newcoowners);
9719: }
9720: }
9721: }
9722: }
9723: }
9724: }
9725: }
9726:
9727: sub store_coowners {
9728: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
9729: my $cid = $cdom.'_'.$cnum;
9730: my ($coowners,$delresult,$putresult);
9731: if (@newcoowners) {
9732: $coowners = join(',',@newcoowners);
9733: my %coownershash = (
9734: 'internal.co-owners' => $coowners,
9735: );
9736: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
9737: if ($putresult eq 'ok') {
9738: if ($env{'course.'.$cid.'.num'} eq $cnum) {
9739: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
9740: }
9741: }
9742: }
9743: if ($delcoowners) {
9744: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
9745: if ($delresult eq 'ok') {
9746: if ($env{'course.'.$cid.'.internal.co-owners'}) {
9747: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
9748: }
9749: }
9750: }
9751: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
9752: my %crsinfo =
9753: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
9754: if (ref($crsinfo{$cid}) eq 'HASH') {
9755: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
9756: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
9757: }
9758: }
9759: }
9760:
1.169 harris41 9761: # -------------------------------------------------- Modify user authentication
1.197 www 9762: # Overrides without validation
9763:
1.169 harris41 9764: sub modifyuserauth {
9765: my ($udom,$uname,$umode,$upass)=@_;
9766: my $uhome=&homeserver($uname,$udom);
1.197 www 9767: unless (&allowed('mau',$udom)) { return 'refused'; }
9768: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 9769: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9770: ' in domain '.$env{'request.role.domain'});
1.169 harris41 9771: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
9772: &escape($upass),$uhome);
1.620 albertel 9773: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 9774: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
9775: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
9776: &log($udom,,$uname,$uhome,
1.620 albertel 9777: 'Authentication changed by '.$env{'user.domain'}.', '.
9778: $env{'user.name'}.', '.$umode.
1.197 www 9779: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 9780: unless ($reply eq 'ok') {
1.197 www 9781: &logthis('Authentication mode error: '.$reply);
1.169 harris41 9782: return 'error: '.$reply;
9783: }
1.170 harris41 9784: return 'ok';
1.80 www 9785: }
9786:
1.81 www 9787: # --------------------------------------------------------------- Modify a user
1.80 www 9788:
1.81 www 9789: sub modifyuser {
1.206 matthew 9790: my ($udom, $uname, $uid,
9791: $umode, $upass, $first,
9792: $middle, $last, $gene,
1.1058 raeburn 9793: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 9794: $udom= &LONCAPA::clean_domain($udom);
9795: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 9796: my $showcandelete = 'none';
9797: if (ref($candelete) eq 'ARRAY') {
9798: if (@{$candelete} > 0) {
9799: $showcandelete = join(', ',@{$candelete});
9800: }
9801: }
1.81 www 9802: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 9803: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 9804: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 9805: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
9806: ' desiredhome not specified').
1.620 albertel 9807: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9808: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 9809: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 9810: my $newuser;
9811: if ($uhome eq 'no_host') {
9812: $newuser = 1;
9813: }
1.80 www 9814: # ----------------------------------------------------------------- Create User
1.406 albertel 9815: if (($uhome eq 'no_host') &&
9816: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 9817: my $unhome='';
1.844 albertel 9818: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 9819: $unhome = $desiredhome;
1.620 albertel 9820: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
9821: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 9822: } else { # load balancing routine for determining $unhome
1.81 www 9823: my $loadm=10000000;
1.841 albertel 9824: my %servers = &get_servers($udom,'library');
9825: foreach my $tryserver (keys(%servers)) {
9826: my $answer=reply('load',$tryserver);
9827: if (($answer=~/\d+/) && ($answer<$loadm)) {
9828: $loadm=$answer;
9829: $unhome=$tryserver;
9830: }
1.80 www 9831: }
9832: }
9833: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 9834: return 'error: unable to find a home server for '.$uname.
9835: ' in domain '.$udom;
1.80 www 9836: }
9837: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
9838: &escape($upass),$unhome);
9839: unless ($reply eq 'ok') {
9840: return 'error: '.$reply;
9841: }
1.230 stredwic 9842: $uhome=&homeserver($uname,$udom,'true');
1.80 www 9843: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 9844: return 'error: unable verify users home machine.';
1.80 www 9845: }
1.209 matthew 9846: } # End of creation of new user
1.80 www 9847: # ---------------------------------------------------------------------- Add ID
9848: if ($uid) {
9849: $uid=~tr/A-Z/a-z/;
9850: my %uidhash=&idrget($udom,$uname);
1.196 www 9851: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
9852: && (!$forceid)) {
1.80 www 9853: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 9854: return 'error: user id "'.$uid.'" does not match '.
9855: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 9856: }
9857: } else {
9858: &idput($udom,($uname => $uid));
9859: }
9860: }
9861: # -------------------------------------------------------------- Add names, etc
1.313 matthew 9862: my @tmp=&get('environment',
1.899 raeburn 9863: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 9864: 'permanentemail','inststatus'],
1.134 albertel 9865: $udom,$uname);
1.1075 raeburn 9866: my (%names,%oldnames);
1.313 matthew 9867: if ($tmp[0] =~ m/^error:.*/) {
9868: %names=();
9869: } else {
9870: %names = @tmp;
1.1075 raeburn 9871: %oldnames = %names;
1.313 matthew 9872: }
1.388 www 9873: #
1.1058 raeburn 9874: # If name, email and/or uid are blank (e.g., because an uploaded file
9875: # of users did not contain them), do not overwrite existing values
9876: # unless field is in $candelete array ref.
9877: #
9878:
9879: my @fields = ('firstname','middlename','lastname','generation',
9880: 'permanentemail','id');
9881: my %newvalues;
9882: if (ref($candelete) eq 'ARRAY') {
9883: foreach my $field (@fields) {
9884: if (grep(/^\Q$field\E$/,@{$candelete})) {
9885: if ($field eq 'firstname') {
9886: $names{$field} = $first;
9887: } elsif ($field eq 'middlename') {
9888: $names{$field} = $middle;
9889: } elsif ($field eq 'lastname') {
9890: $names{$field} = $last;
9891: } elsif ($field eq 'generation') {
9892: $names{$field} = $gene;
9893: } elsif ($field eq 'permanentemail') {
9894: $names{$field} = $email;
9895: } elsif ($field eq 'id') {
9896: $names{$field} = $uid;
9897: }
9898: }
9899: }
9900: }
1.388 www 9901: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 9902: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 9903: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 9904: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 9905: if ($email) {
9906: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 9907: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 9908: }
1.899 raeburn 9909: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 9910: if (defined($inststatus)) {
9911: $names{'inststatus'} = '';
9912: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
9913: if (ref($usertypes) eq 'HASH') {
9914: my @okstatuses;
9915: foreach my $item (split(/:/,$inststatus)) {
9916: if (defined($usertypes->{$item})) {
9917: push(@okstatuses,$item);
9918: }
9919: }
9920: if (@okstatuses) {
9921: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
9922: }
9923: }
9924: }
1.1075 raeburn 9925: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 9926: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 9927: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 9928: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
9929: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
9930: } else {
9931: $logmsg .= ' during self creation';
9932: }
1.1075 raeburn 9933: my $changed;
9934: if ($newuser) {
9935: $changed = 1;
9936: } else {
9937: foreach my $field (@fields) {
9938: if ($names{$field} ne $oldnames{$field}) {
9939: $changed = 1;
9940: last;
9941: }
9942: }
9943: }
9944: unless ($changed) {
9945: $logmsg = 'No changes in user information needed for: '.$logmsg;
9946: &logthis($logmsg);
9947: return 'ok';
9948: }
9949: my $reply = &put('environment', \%names, $udom,$uname);
9950: if ($reply ne 'ok') {
9951: return 'error: '.$reply;
9952: }
1.1087 raeburn 9953: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
9954: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
9955: }
1.1075 raeburn 9956: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
9957: &devalidate_cache_new('namescache',$uname.':'.$udom);
9958: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 9959: &logthis($logmsg);
1.134 albertel 9960: return 'ok';
1.80 www 9961: }
9962:
1.81 www 9963: # -------------------------------------------------------------- Modify student
1.80 www 9964:
1.81 www 9965: sub modifystudent {
9966: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 9967: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.1172.2.76 raeburn 9968: $selfenroll,$context,$inststatus,$credits,$instsec)=@_;
1.455 albertel 9969: if (!$cid) {
1.620 albertel 9970: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9971: return 'not_in_class';
9972: }
1.80 www 9973: }
9974: # --------------------------------------------------------------- Make the user
1.81 www 9975: my $reply=&modifyuser
1.209 matthew 9976: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 9977: $desiredhome,$email,$inststatus);
1.80 www 9978: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 9979: # This will cause &modify_student_enrollment to get the uid from the
1.1172.2.31 raeburn 9980: # student's environment
1.297 matthew 9981: $uid = undef if (!$forceid);
1.455 albertel 9982: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.1172.2.19 raeburn 9983: $gene,$usec,$end,$start,$type,$locktype,
1.1172.2.76 raeburn 9984: $cid,$selfenroll,$context,$credits,$instsec);
1.297 matthew 9985: return $reply;
9986: }
9987:
9988: sub modify_student_enrollment {
1.1172.2.23 raeburn 9989: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
1.1172.2.76 raeburn 9990: $locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_;
1.455 albertel 9991: my ($cdom,$cnum,$chome);
9992: if (!$cid) {
1.620 albertel 9993: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9994: return 'not_in_class';
9995: }
1.620 albertel 9996: $cdom=$env{'course.'.$cid.'.domain'};
9997: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 9998: } else {
9999: ($cdom,$cnum)=split(/_/,$cid);
10000: }
1.620 albertel 10001: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 10002: if (!$chome) {
1.457 raeburn 10003: $chome=&homeserver($cnum,$cdom);
1.297 matthew 10004: }
1.455 albertel 10005: if (!$chome) { return 'unknown_course'; }
1.297 matthew 10006: # Make sure the user exists
1.81 www 10007: my $uhome=&homeserver($uname,$udom);
10008: if (($uhome eq '') || ($uhome eq 'no_host')) {
10009: return 'error: no such user';
10010: }
1.297 matthew 10011: # Get student data if we were not given enough information
10012: if (!defined($first) || $first eq '' ||
10013: !defined($last) || $last eq '' ||
10014: !defined($uid) || $uid eq '' ||
10015: !defined($middle) || $middle eq '' ||
10016: !defined($gene) || $gene eq '') {
1.294 matthew 10017: # They did not supply us with enough data to enroll the student, so
10018: # we need to pick up more information.
1.297 matthew 10019: my %tmp = &get('environment',
1.294 matthew 10020: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 10021: ,$udom,$uname);
10022:
1.800 albertel 10023: #foreach my $key (keys(%tmp)) {
10024: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 10025: #}
1.294 matthew 10026: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
10027: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
10028: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 10029: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 10030: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
10031: }
1.556 albertel 10032: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 10033: my $user = "$uname:$udom";
10034: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 10035: my $reply=cput('classlist',
1.1148 raeburn 10036: {$user =>
1.1172.2.76 raeburn 10037: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },
1.487 albertel 10038: $cdom,$cnum);
1.1148 raeburn 10039: if (($reply eq 'ok') || ($reply eq 'delayed')) {
10040: &devalidate_getsection_cache($udom,$uname,$cid);
10041: } else {
1.81 www 10042: return 'error: '.$reply;
10043: }
1.297 matthew 10044: # Add student role to user
1.83 www 10045: my $uurl='/'.$cid;
1.81 www 10046: $uurl=~s/\_/\//g;
10047: if ($usec) {
10048: $uurl.='/'.$usec;
10049: }
1.1148 raeburn 10050: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
10051: $selfenroll,$context);
10052: if ($result ne 'ok') {
10053: if ($old_entry{$user} ne '') {
10054: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
10055: } else {
10056: $reply = &del('classlist',[$user],$cdom,$cnum);
10057: }
10058: }
10059: return $result;
1.21 www 10060: }
10061:
1.556 albertel 10062: sub format_name {
10063: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
10064: my $name;
10065: if ($first ne 'lastname') {
10066: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
10067: } else {
10068: if ($lastname=~/\S/) {
10069: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
10070: $name=~s/\s+,/,/;
10071: } else {
10072: $name.= $firstname.' '.$middlename.' '.$generation;
10073: }
10074: }
10075: $name=~s/^\s+//;
10076: $name=~s/\s+$//;
10077: $name=~s/\s+/ /g;
10078: return $name;
10079: }
10080:
1.84 www 10081: # ------------------------------------------------- Write to course preferences
10082:
10083: sub writecoursepref {
10084: my ($courseid,%prefs)=@_;
10085: $courseid=~s/^\///;
10086: $courseid=~s/\_/\//g;
10087: my ($cdomain,$cnum)=split(/\//,$courseid);
10088: my $chome=homeserver($cnum,$cdomain);
10089: if (($chome eq '') || ($chome eq 'no_host')) {
10090: return 'error: no such course';
10091: }
10092: my $cstring='';
1.800 albertel 10093: foreach my $pref (keys(%prefs)) {
10094: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 10095: }
1.84 www 10096: $cstring=~s/\&$//;
10097: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
10098: }
10099:
10100: # ---------------------------------------------------------- Make/modify course
10101:
10102: sub createcourse {
1.741 raeburn 10103: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 10104: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 10105: $url=&declutter($url);
10106: my $cid='';
1.1028 raeburn 10107: if ($context eq 'requestcourses') {
10108: my $can_create = 0;
10109: my ($ownername,$ownerdom) = split(':',$course_owner);
10110: if ($udom eq $ownerdom) {
10111: if (&usertools_access($ownername,$ownerdom,$category,undef,
10112: $context)) {
10113: $can_create = 1;
10114: }
10115: } else {
10116: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
10117: $category);
10118: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
10119: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
10120: if (@curr > 0) {
10121: my @options = qw(approval validate autolimit);
10122: my $optregex = join('|',@options);
10123: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
10124: $can_create = 1;
10125: }
10126: }
10127: }
10128: }
10129: if ($can_create) {
10130: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
10131: unless (&allowed('ccc',$udom)) {
10132: return 'refused';
10133: }
1.1017 raeburn 10134: }
10135: } else {
10136: return 'refused';
10137: }
1.1028 raeburn 10138: } elsif (!&allowed('ccc',$udom)) {
10139: return 'refused';
1.84 www 10140: }
1.1011 raeburn 10141: # --------------------------------------------------------------- Get Unique ID
10142: my $uname;
10143: if ($cnum =~ /^$match_courseid$/) {
10144: my $chome=&homeserver($cnum,$udom,'true');
10145: if (($chome eq '') || ($chome eq 'no_host')) {
10146: $uname = $cnum;
10147: } else {
1.1038 raeburn 10148: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 10149: }
10150: } else {
1.1038 raeburn 10151: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 10152: }
10153: return $uname if ($uname =~ /^error/);
10154: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 10155: if (!defined($course_server)) {
10156: if (defined(&domain($udom,'primary'))) {
10157: $course_server = &domain($udom,'primary');
10158: } else {
10159: $course_server = $env{'user.home'};
10160: }
10161: }
10162: my %host_servers =
10163: &Apache::lonnet::get_servers($udom,'library');
10164: unless ($host_servers{$course_server}) {
10165: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 10166: }
1.84 www 10167: # ------------------------------------------------------------- Make the course
10168: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 10169: $course_server);
1.84 www 10170: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 10171: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 10172: if (($uhome eq '') || ($uhome eq 'no_host')) {
10173: return 'error: no such course';
10174: }
1.271 www 10175: # ----------------------------------------------------------------- Course made
1.516 raeburn 10176: # log existence
1.1029 raeburn 10177: my $now = time;
1.918 raeburn 10178: my $newcourse = {
10179: $udom.'_'.$uname => {
1.921 raeburn 10180: description => $description,
10181: inst_code => $inst_code,
10182: owner => $course_owner,
10183: type => $crstype,
1.1029 raeburn 10184: creator => $env{'user.name'}.':'.
10185: $env{'user.domain'},
10186: created => $now,
10187: context => $context,
1.918 raeburn 10188: },
10189: };
1.921 raeburn 10190: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 10191: # set toplevel url
1.271 www 10192: my $topurl=$url;
10193: unless ($nonstandard) {
10194: # ------------------------------------------ For standard courses, make top url
10195: my $mapurl=&clutter($url);
1.278 www 10196: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 10197: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 10198: <map>
10199: <resource id="1" type="start"></resource>
10200: <resource id="2" src="$mapurl"></resource>
10201: <resource id="3" type="finish"></resource>
10202: <link index="1" from="1" to="2"></link>
10203: <link index="2" from="2" to="3"></link>
10204: </map>
10205: ENDINITMAP
10206: $topurl=&declutter(
1.638 albertel 10207: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 10208: );
10209: }
10210: # ----------------------------------------------------------- Write preferences
1.84 www 10211: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 10212: ('description' => $description,
10213: 'url' => $topurl,
10214: 'internal.creator' => $env{'user.name'}.':'.
10215: $env{'user.domain'},
10216: 'internal.created' => $now,
10217: 'internal.creationcontext' => $context)
10218: );
1.84 www 10219: return '/'.$udom.'/'.$uname;
10220: }
10221:
1.1011 raeburn 10222: # ------------------------------------------------------------------- Create ID
10223: sub generate_coursenum {
1.1038 raeburn 10224: my ($udom,$crstype) = @_;
1.1011 raeburn 10225: my $domdesc = &domain($udom);
10226: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 10227: my $first;
10228: if ($crstype eq 'Community') {
10229: $first = '0';
10230: } else {
10231: $first = int(1+rand(9));
10232: }
10233: my $uname=$first.
1.1011 raeburn 10234: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
10235: substr($$.time,0,5).unpack("H8",pack("I32",time)).
10236: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
10237: # ----------------------------------------------- Make sure that does not exist
10238: my $uhome=&homeserver($uname,$udom,'true');
10239: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 10240: if ($crstype eq 'Community') {
10241: $first = '0';
10242: } else {
10243: $first = int(1+rand(9));
10244: }
10245: $uname=$first.
1.1011 raeburn 10246: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
10247: substr($$.time,0,5).unpack("H8",pack("I32",time)).
10248: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
10249: $uhome=&homeserver($uname,$udom,'true');
10250: unless (($uhome eq '') || ($uhome eq 'no_host')) {
10251: return 'error: unable to generate unique course-ID';
10252: }
10253: }
10254: return $uname;
10255: }
10256:
1.813 albertel 10257: sub is_course {
1.1167 droeschl 10258: my ($cdom, $cnum) = scalar(@_) == 1 ?
10259: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
1.1172.2.95 raeburn 10260: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
10261: my $uhome=&homeserver($cnum,$cdom);
10262: my $iscourse;
10263: if (grep { $_ eq $uhome } current_machine_ids()) {
10264: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);
10265: } else {
10266: my $hashid = $cdom.':'.$cnum;
10267: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
10268: unless (defined($cached)) {
10269: my %courses = &courseiddump($cdom, '.', 1, '.', '.',
10270: $cnum,undef,undef,'.');
10271: $iscourse = 0;
10272: if (exists($courses{$cdom.'_'.$cnum})) {
10273: $iscourse = 1;
10274: }
10275: &do_cache_new('iscourse',$hashid,$iscourse,3600);
10276: }
10277: }
10278: return unless($iscourse);
1.1167 droeschl 10279: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 10280: }
10281:
1.1015 raeburn 10282: sub store_userdata {
10283: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 10284: my $result;
1.1016 raeburn 10285: if ($datakey ne '') {
1.1013 raeburn 10286: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 10287: if ($udom eq '' || $uname eq '') {
10288: $udom = $env{'user.domain'};
10289: $uname = $env{'user.name'};
10290: }
10291: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 10292: if (($uhome eq '') || ($uhome eq 'no_host')) {
10293: $result = 'error: no_host';
10294: } else {
10295: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
10296: $storehash->{'host'} = $perlvar{'lonHostID'};
10297:
10298: my $namevalue='';
10299: foreach my $key (keys(%{$storehash})) {
10300: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
10301: }
10302: $namevalue=~s/\&$//;
1.1172.2.26 raeburn 10303: unless ($namespace eq 'courserequests') {
10304: $datakey = &escape($datakey);
10305: }
1.1105 raeburn 10306: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
10307: $namevalue,$uhome);
1.1013 raeburn 10308: }
10309: } else {
10310: $result = 'error: data to store was not a hash reference';
10311: }
10312: } else {
10313: $result= 'error: invalid requestkey';
10314: }
10315: return $result;
10316: }
10317:
1.21 www 10318: # ---------------------------------------------------------- Assign Custom Role
10319:
10320: sub assigncustomrole {
1.957 raeburn 10321: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10322: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 10323: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 10324: }
10325:
10326: # ----------------------------------------------------------------- Revoke Role
10327:
10328: sub revokerole {
1.957 raeburn 10329: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10330: my $now=time;
1.965 raeburn 10331: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 10332: }
10333:
10334: # ---------------------------------------------------------- Revoke Custom Role
10335:
10336: sub revokecustomrole {
1.957 raeburn 10337: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10338: my $now=time;
1.357 www 10339: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 10340: $deleteflag,$selfenroll,$context);
1.17 www 10341: }
10342:
1.533 banghart 10343: # ------------------------------------------------------------ Disk usage
1.535 albertel 10344: sub diskusage {
1.955 raeburn 10345: my ($udom,$uname,$directorypath,$getpropath)=@_;
10346: $directorypath =~ s/\/$//;
10347: my $listing=&reply('du2:'.&escape($directorypath).':'
10348: .&escape($getpropath).':'.&escape($uname).':'
10349: .&escape($udom),homeserver($uname,$udom));
10350: if ($listing eq 'unknown_cmd') {
10351: if ($getpropath) {
10352: $directorypath = &propath($udom,$uname).'/'.$directorypath;
10353: }
10354: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
10355: }
1.514 albertel 10356: return $listing;
1.512 banghart 10357: }
10358:
1.566 banghart 10359: sub is_locked {
1.1096 raeburn 10360: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 10361: my @check;
10362: my $is_locked;
1.1093 raeburn 10363: push (@check,$file_name);
1.613 albertel 10364: my %locked = &get('file_permissions',\@check,
1.620 albertel 10365: $env{'user.domain'},$env{'user.name'});
1.615 albertel 10366: my ($tmp)=keys(%locked);
10367: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 10368:
1.566 banghart 10369: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 10370: $is_locked = 'false';
10371: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 10372: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 10373: $is_locked = 'true';
1.1096 raeburn 10374: if (ref($which) eq 'ARRAY') {
10375: push(@{$which},$entry);
10376: } else {
10377: last;
10378: }
1.745 raeburn 10379: }
10380: }
1.566 banghart 10381: } else {
10382: $is_locked = 'false';
10383: }
1.1093 raeburn 10384: return $is_locked;
1.566 banghart 10385: }
10386:
1.759 albertel 10387: sub declutter_portfile {
10388: my ($file) = @_;
1.833 albertel 10389: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 10390: return $file;
10391: }
10392:
1.559 banghart 10393: # ------------------------------------------------------------- Mark as Read Only
10394:
10395: sub mark_as_readonly {
10396: my ($domain,$user,$files,$what) = @_;
1.613 albertel 10397: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 10398: my ($tmp)=keys(%current_permissions);
10399: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 10400: foreach my $file (@{$files}) {
1.759 albertel 10401: $file = &declutter_portfile($file);
1.561 banghart 10402: push(@{$current_permissions{$file}},$what);
1.559 banghart 10403: }
1.613 albertel 10404: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 10405: return;
10406: }
10407:
1.572 banghart 10408: # ------------------------------------------------------------Save Selected Files
10409:
10410: sub save_selected_files {
10411: my ($user, $path, @files) = @_;
10412: my $filename = $user."savedfiles";
1.573 banghart 10413: my @other_files = &files_not_in_path($user, $path);
1.1172.2.96 raeburn 10414: open (OUT,'>',LONCAPA::tempdir().$filename);
1.573 banghart 10415: foreach my $file (@files) {
1.620 albertel 10416: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 10417: }
10418: foreach my $file (@other_files) {
1.574 banghart 10419: print (OUT $file."\n");
1.572 banghart 10420: }
1.574 banghart 10421: close (OUT);
1.572 banghart 10422: return 'ok';
10423: }
10424:
1.574 banghart 10425: sub clear_selected_files {
10426: my ($user) = @_;
10427: my $filename = $user."savedfiles";
1.1172.2.96 raeburn 10428: open (OUT,'>',LONCAPA::tempdir().$filename);
1.574 banghart 10429: print (OUT undef);
10430: close (OUT);
10431: return ("ok");
10432: }
10433:
1.572 banghart 10434: sub files_in_path {
10435: my ($user, $path) = @_;
10436: my $filename = $user."savedfiles";
10437: my %return_files;
1.1172.2.96 raeburn 10438: open (IN,'<',LONCAPA::tempdir().$filename);
1.573 banghart 10439: while (my $line_in = <IN>) {
1.574 banghart 10440: chomp ($line_in);
10441: my @paths_and_file = split (m!/!, $line_in);
10442: my $file_part = pop (@paths_and_file);
10443: my $path_part = join ('/', @paths_and_file);
1.573 banghart 10444: $path_part.='/';
10445: my $path_and_file = $path_part.$file_part;
10446: if ($path_part eq $path) {
10447: $return_files{$file_part}= 'selected';
10448: }
10449: }
1.574 banghart 10450: close (IN);
10451: return (\%return_files);
1.572 banghart 10452: }
10453:
10454: # called in portfolio select mode, to show files selected NOT in current directory
10455: sub files_not_in_path {
10456: my ($user, $path) = @_;
10457: my $filename = $user."savedfiles";
10458: my @return_files;
10459: my $path_part;
1.1172.2.96 raeburn 10460: open(IN, '<',LONCAPA::tempdir().$filename);
1.800 albertel 10461: while (my $line = <IN>) {
1.572 banghart 10462: #ok, I know it's clunky, but I want it to work
1.800 albertel 10463: my @paths_and_file = split(m|/|, $line);
10464: my $file_part = pop(@paths_and_file);
10465: chomp($file_part);
10466: my $path_part = join('/', @paths_and_file);
1.572 banghart 10467: $path_part .= '/';
10468: my $path_and_file = $path_part.$file_part;
10469: if ($path_part ne $path) {
1.800 albertel 10470: push(@return_files, ($path_and_file));
1.572 banghart 10471: }
10472: }
1.800 albertel 10473: close(OUT);
1.574 banghart 10474: return (@return_files);
1.572 banghart 10475: }
10476:
1.745 raeburn 10477: #----------------------------------------------Get portfolio file permissions
1.629 banghart 10478:
1.745 raeburn 10479: sub get_portfile_permissions {
10480: my ($domain,$user) = @_;
1.613 albertel 10481: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 10482: my ($tmp)=keys(%current_permissions);
10483: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 10484: return \%current_permissions;
10485: }
10486:
10487: #---------------------------------------------Get portfolio file access controls
10488:
1.749 raeburn 10489: sub get_access_controls {
1.745 raeburn 10490: my ($current_permissions,$group,$file) = @_;
1.769 albertel 10491: my %access;
10492: my $real_file = $file;
10493: $file =~ s/\.meta$//;
1.745 raeburn 10494: if (defined($file)) {
1.749 raeburn 10495: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
10496: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 10497: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 10498: }
10499: }
1.745 raeburn 10500: } else {
1.749 raeburn 10501: foreach my $key (keys(%{$current_permissions})) {
10502: if ($key =~ /\0accesscontrol$/) {
10503: if (defined($group)) {
10504: if ($key !~ m-^\Q$group\E/-) {
10505: next;
10506: }
10507: }
10508: my ($fullpath) = split(/\0/,$key);
10509: if (ref($$current_permissions{$key}) eq 'HASH') {
10510: foreach my $control (keys(%{$$current_permissions{$key}})) {
10511: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
10512: }
10513: }
10514: }
10515: }
10516: }
10517: return %access;
10518: }
10519:
10520: sub modify_access_controls {
10521: my ($file_name,$changes,$domain,$user)=@_;
10522: my ($outcome,$deloutcome);
10523: my %store_permissions;
10524: my %new_values;
10525: my %new_control;
10526: my %translation;
10527: my @deletions = ();
10528: my $now = time;
10529: if (exists($$changes{'activate'})) {
10530: if (ref($$changes{'activate'}) eq 'HASH') {
10531: my @newitems = sort(keys(%{$$changes{'activate'}}));
10532: my $numnew = scalar(@newitems);
10533: for (my $i=0; $i<$numnew; $i++) {
10534: my $newkey = $newitems[$i];
10535: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 10536: if ($newkey =~ /^\d+:/) {
10537: $newkey =~ s/^(\d+)/$newid/;
10538: $translation{$1} = $newid;
10539: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
10540: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
10541: $translation{$1} = $newid;
10542: }
1.749 raeburn 10543: $new_values{$file_name."\0".$newkey} =
10544: $$changes{'activate'}{$newitems[$i]};
10545: $new_control{$newkey} = $now;
10546: }
10547: }
10548: }
10549: my %todelete;
10550: my %changed_items;
10551: foreach my $action ('delete','update') {
10552: if (exists($$changes{$action})) {
10553: if (ref($$changes{$action}) eq 'HASH') {
10554: foreach my $key (keys(%{$$changes{$action}})) {
10555: my ($itemnum) = ($key =~ /^([^:]+):/);
10556: if ($action eq 'delete') {
10557: $todelete{$itemnum} = 1;
10558: } else {
10559: $changed_items{$itemnum} = $key;
10560: }
10561: }
1.745 raeburn 10562: }
10563: }
1.749 raeburn 10564: }
10565: # get lock on access controls for file.
10566: my $lockhash = {
10567: $file_name."\0".'locked_access_records' => $env{'user.name'}.
10568: ':'.$env{'user.domain'},
10569: };
10570: my $tries = 0;
10571: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10572:
1.1172.2.79 raeburn 10573: while (($gotlock ne 'ok') && $tries < 10) {
1.749 raeburn 10574: $tries ++;
1.1172.2.79 raeburn 10575: sleep(0.1);
1.749 raeburn 10576: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10577: }
10578: if ($gotlock eq 'ok') {
10579: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
10580: my ($tmp)=keys(%curr_permissions);
10581: if ($tmp=~/^error:/) { undef(%curr_permissions); }
10582: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
10583: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
10584: if (ref($curr_controls) eq 'HASH') {
10585: foreach my $control_item (keys(%{$curr_controls})) {
10586: my ($itemnum) = ($control_item =~ /^([^:]+):/);
10587: if (defined($todelete{$itemnum})) {
10588: push(@deletions,$file_name."\0".$control_item);
10589: } else {
10590: if (defined($changed_items{$itemnum})) {
10591: $new_control{$changed_items{$itemnum}} = $now;
10592: push(@deletions,$file_name."\0".$control_item);
10593: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
10594: } else {
10595: $new_control{$control_item} = $$curr_controls{$control_item};
10596: }
10597: }
1.745 raeburn 10598: }
10599: }
10600: }
1.970 raeburn 10601: my ($group);
10602: if (&is_course($domain,$user)) {
10603: ($group,my $file) = split(/\//,$file_name,2);
10604: }
1.749 raeburn 10605: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
10606: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
10607: $outcome = &put('file_permissions',\%new_values,$domain,$user);
10608: # remove lock
10609: my @del_lock = ($file_name."\0".'locked_access_records');
10610: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 10611: my $sqlresult =
1.970 raeburn 10612: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 10613: $group);
1.749 raeburn 10614: } else {
10615: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 10616: }
1.749 raeburn 10617: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 10618: }
10619:
1.827 raeburn 10620: sub make_public_indefinitely {
10621: my ($requrl) = @_;
10622: my $now = time;
10623: my $action = 'activate';
10624: my $aclnum = 0;
10625: if (&is_portfolio_url($requrl)) {
10626: my (undef,$udom,$unum,$file_name,$group) =
10627: &parse_portfolio_url($requrl);
10628: my $current_perms = &get_portfile_permissions($udom,$unum);
10629: my %access_controls = &get_access_controls($current_perms,
10630: $group,$file_name);
10631: foreach my $key (keys(%{$access_controls{$file_name}})) {
10632: my ($num,$scope,$end,$start) =
10633: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
10634: if ($scope eq 'public') {
10635: if ($start <= $now && $end == 0) {
10636: $action = 'none';
10637: } else {
10638: $action = 'update';
10639: $aclnum = $num;
10640: }
10641: last;
10642: }
10643: }
10644: if ($action eq 'none') {
10645: return 'ok';
10646: } else {
10647: my %changes;
10648: my $newend = 0;
10649: my $newstart = $now;
10650: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
10651: $changes{$action}{$newkey} = {
10652: type => 'public',
10653: time => {
10654: start => $newstart,
10655: end => $newend,
10656: },
10657: };
10658: my ($outcome,$deloutcome,$new_values,$translation) =
10659: &modify_access_controls($file_name,\%changes,$udom,$unum);
10660: return $outcome;
10661: }
10662: } else {
10663: return 'invalid';
10664: }
10665: }
10666:
1.745 raeburn 10667: #------------------------------------------------------Get Marked as Read Only
10668:
10669: sub get_marked_as_readonly {
10670: my ($domain,$user,$what,$group) = @_;
10671: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 10672: my @readonly_files;
1.629 banghart 10673: my $cmp1=$what;
10674: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 10675: while (my ($file_name,$value) = each(%{$current_permissions})) {
10676: if (defined($group)) {
10677: if ($file_name !~ m-^\Q$group\E/-) {
10678: next;
10679: }
10680: }
1.561 banghart 10681: if (ref($value) eq "ARRAY"){
10682: foreach my $stored_what (@{$value}) {
1.629 banghart 10683: my $cmp2=$stored_what;
1.759 albertel 10684: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 10685: $cmp2=join('',@{$stored_what});
1.745 raeburn 10686: }
1.629 banghart 10687: if ($cmp1 eq $cmp2) {
1.561 banghart 10688: push(@readonly_files, $file_name);
1.745 raeburn 10689: last;
1.563 banghart 10690: } elsif (!defined($what)) {
10691: push(@readonly_files, $file_name);
1.745 raeburn 10692: last;
1.561 banghart 10693: }
10694: }
1.745 raeburn 10695: }
1.561 banghart 10696: }
10697: return @readonly_files;
10698: }
1.577 banghart 10699: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 10700:
1.577 banghart 10701: sub get_marked_as_readonly_hash {
1.745 raeburn 10702: my ($current_permissions,$group,$what) = @_;
1.577 banghart 10703: my %readonly_files;
1.745 raeburn 10704: while (my ($file_name,$value) = each(%{$current_permissions})) {
10705: if (defined($group)) {
10706: if ($file_name !~ m-^\Q$group\E/-) {
10707: next;
10708: }
10709: }
1.577 banghart 10710: if (ref($value) eq "ARRAY"){
10711: foreach my $stored_what (@{$value}) {
1.745 raeburn 10712: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 10713: foreach my $lock_descriptor(@{$stored_what}) {
10714: if ($lock_descriptor eq 'graded') {
10715: $readonly_files{$file_name} = 'graded';
10716: } elsif ($lock_descriptor eq 'handback') {
10717: $readonly_files{$file_name} = 'handback';
10718: } else {
10719: if (!exists($readonly_files{$file_name})) {
10720: $readonly_files{$file_name} = 'locked';
10721: }
10722: }
1.745 raeburn 10723: }
1.750 banghart 10724: }
1.577 banghart 10725: }
10726: }
10727: }
10728: return %readonly_files;
10729: }
1.559 banghart 10730: # ------------------------------------------------------------ Unmark as Read Only
10731:
10732: sub unmark_as_readonly {
1.629 banghart 10733: # unmarks $file_name (if $file_name is defined), or all files locked by $what
10734: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 10735: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 10736: $file_name = &declutter_portfile($file_name);
1.634 albertel 10737: my $symb_crs = $what;
10738: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 10739: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 10740: my ($tmp)=keys(%current_permissions);
10741: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 10742: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 10743: foreach my $file (@readonly_files) {
1.759 albertel 10744: my $clean_file = &declutter_portfile($file);
10745: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 10746: my $current_locks = $current_permissions{$file};
1.563 banghart 10747: my @new_locks;
10748: my @del_keys;
10749: if (ref($current_locks) eq "ARRAY"){
10750: foreach my $locker (@{$current_locks}) {
1.632 albertel 10751: my $compare=$locker;
1.749 raeburn 10752: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 10753: $compare=join('',@{$locker});
1.746 raeburn 10754: if ($compare ne $symb_crs) {
10755: push(@new_locks, $locker);
10756: }
1.563 banghart 10757: }
10758: }
1.650 albertel 10759: if (scalar(@new_locks) > 0) {
1.563 banghart 10760: $current_permissions{$file} = \@new_locks;
10761: } else {
10762: push(@del_keys, $file);
1.613 albertel 10763: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 10764: delete($current_permissions{$file});
1.563 banghart 10765: }
10766: }
1.561 banghart 10767: }
1.613 albertel 10768: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 10769: return;
10770: }
1.512 banghart 10771:
1.17 www 10772: # ------------------------------------------------------------ Directory lister
10773:
10774: sub dirlist {
1.955 raeburn 10775: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 10776: $uri=~s/^\///;
10777: $uri=~s/\/$//;
1.253 stredwic 10778: my ($udom, $uname);
1.955 raeburn 10779: if ($getuserdir) {
1.253 stredwic 10780: $udom = $userdomain;
10781: $uname = $username;
1.955 raeburn 10782: } else {
10783: (undef,$udom,$uname)=split(/\//,$uri);
10784: if(defined($userdomain)) {
10785: $udom = $userdomain;
10786: }
10787: if(defined($username)) {
10788: $uname = $username;
10789: }
1.253 stredwic 10790: }
1.955 raeburn 10791: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 10792:
1.955 raeburn 10793: $dirRoot = $perlvar{'lonDocRoot'};
10794: if (defined($getpropath)) {
10795: $dirRoot = &propath($udom,$uname);
1.253 stredwic 10796: $dirRoot =~ s/\/$//;
1.955 raeburn 10797: } elsif (defined($getuserdir)) {
10798: my $subdir=$uname.'__';
10799: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
10800: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
10801: ."/$udom/$subdir/$uname";
10802: } elsif (defined($alternateRoot)) {
10803: $dirRoot = $alternateRoot;
1.751 banghart 10804: }
1.253 stredwic 10805:
10806: if($udom) {
10807: if($uname) {
1.1135 raeburn 10808: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 10809: if ($uhome eq 'no_host') {
10810: return ([],'no_host');
10811: }
1.955 raeburn 10812: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 10813: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 10814: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 10815: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10816: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 10817: } else {
10818: @listing_results = map { &unescape($_); } split(/:/,$listing);
10819: }
1.605 matthew 10820: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10821: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 10822: @listing_results = split(/:/,$listing);
10823: } else {
10824: @listing_results = map { &unescape($_); } split(/:/,$listing);
10825: }
1.1135 raeburn 10826: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 10827: ($listing eq 'rejected') || ($listing eq 'refused') ||
10828: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10829: return ([],$listing);
10830: } else {
10831: return (\@listing_results);
1.1135 raeburn 10832: }
1.955 raeburn 10833: } elsif(!$alternateRoot) {
1.1136 raeburn 10834: my (%allusers,%listerror);
1.841 albertel 10835: my %servers = &get_servers($udom,'library');
1.955 raeburn 10836: foreach my $tryserver (keys(%servers)) {
10837: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
10838: &escape($udom),$tryserver);
10839: if ($listing eq 'unknown_cmd') {
10840: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
10841: $udom, $tryserver);
10842: } else {
10843: @listing_results = map { &unescape($_); } split(/:/,$listing);
10844: }
1.841 albertel 10845: if ($listing eq 'unknown_cmd') {
10846: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
10847: $udom, $tryserver);
10848: @listing_results = split(/:/,$listing);
10849: } else {
10850: @listing_results =
10851: map { &unescape($_); } split(/:/,$listing);
10852: }
1.1136 raeburn 10853: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
10854: ($listing eq 'rejected') || ($listing eq 'refused') ||
10855: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10856: $listerror{$tryserver} = $listing;
10857: } else {
1.841 albertel 10858: foreach my $line (@listing_results) {
10859: my ($entry) = split(/&/,$line,2);
10860: $allusers{$entry} = 1;
10861: }
10862: }
1.253 stredwic 10863: }
1.1136 raeburn 10864: my @alluserslist=();
1.800 albertel 10865: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 10866: push(@alluserslist,$user.'&user');
1.253 stredwic 10867: }
1.1172.2.80 raeburn 10868: if (!%listerror) {
10869: # no errors
10870: return (\@alluserslist);
10871: } elsif (scalar(keys(%servers)) == 1) {
10872: # one library server, one error
10873: my ($key) = keys(%listerror);
10874: return (\@alluserslist, $listerror{$key});
10875: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
10876: # con_lost indicates that we might miss data from at least one
10877: # library server
10878: return (\@alluserslist, 'con_lost');
10879: } else {
10880: # multiple library servers and no con_lost -> data should be
10881: # complete.
10882: return (\@alluserslist);
10883: }
10884:
1.253 stredwic 10885: } else {
1.1136 raeburn 10886: return ([],'missing username');
1.253 stredwic 10887: }
1.955 raeburn 10888: } elsif(!defined($getpropath)) {
1.1136 raeburn 10889: my $path = $perlvar{'lonDocRoot'}.'/res/';
10890: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
10891: return (\@all_domains);
1.955 raeburn 10892: } else {
1.1136 raeburn 10893: return ([],'missing domain');
1.275 stredwic 10894: }
10895: }
10896:
10897: # --------------------------------------------- GetFileTimestamp
10898: # This function utilizes dirlist and returns the date stamp for
10899: # when it was last modified. It will also return an error of -1
10900: # if an error occurs
10901:
10902: sub GetFileTimestamp {
1.955 raeburn 10903: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 10904: $studentDomain = &LONCAPA::clean_domain($studentDomain);
10905: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 10906: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
10907: undef,$getuserdir);
10908: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10909: return -1;
10910: }
10911: if (ref($fileref) eq 'ARRAY') {
10912: my @stats = split('&',$fileref->[0]);
1.375 matthew 10913: # @stats contains first the filename, then the stat output
10914: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 10915: } else {
10916: return -1;
1.253 stredwic 10917: }
1.26 www 10918: }
10919:
1.712 albertel 10920: sub stat_file {
10921: my ($uri) = @_;
1.787 albertel 10922: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 10923:
1.955 raeburn 10924: my ($udom,$uname,$file);
1.712 albertel 10925: if ($uri =~ m-^/(uploaded|editupload)/-) {
10926: ($udom,$uname,$file) =
1.811 albertel 10927: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 10928: $file = 'userfiles/'.$file;
10929: }
10930: if ($uri =~ m-^/res/-) {
10931: ($udom,$uname) =
1.807 albertel 10932: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 10933: $file = $uri;
10934: }
10935:
10936: if (!$udom || !$uname || !$file) {
10937: # unable to handle the uri
10938: return ();
10939: }
1.956 raeburn 10940: my $getpropath;
10941: if ($file =~ /^userfiles\//) {
10942: $getpropath = 1;
10943: }
1.1136 raeburn 10944: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
10945: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10946: return ();
10947: } else {
10948: if (ref($listref) eq 'ARRAY') {
10949: my @stats = split('&',$listref->[0]);
10950: shift(@stats); #filename is first
10951: return @stats;
10952: }
1.712 albertel 10953: }
10954: return ();
10955: }
10956:
1.26 www 10957: # -------------------------------------------------------- Value of a Condition
10958:
1.713 albertel 10959: # gets the value of a specific preevaluated condition
10960: # stored in the string $env{user.state.<cid>}
10961: # or looks up a condition reference in the bighash and if if hasn't
10962: # already been evaluated recurses into docondval to get the value of
10963: # the condition, then memoizing it to
10964: # $env{user.state.<cid>.<condition>}
1.40 www 10965: sub directcondval {
10966: my $number=shift;
1.620 albertel 10967: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 10968: &Apache::lonuserstate::evalstate();
10969: }
1.713 albertel 10970: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
10971: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
10972: } elsif ($number =~ /^_/) {
10973: my $sub_condition;
10974: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10975: &GDBM_READER(),0640)) {
10976: $sub_condition=$bighash{'conditions'.$number};
10977: untie(%bighash);
10978: }
10979: my $value = &docondval($sub_condition);
1.949 raeburn 10980: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 10981: return $value;
10982: }
1.620 albertel 10983: if ($env{'user.state.'.$env{'request.course.id'}}) {
10984: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 10985: } else {
10986: return 2;
10987: }
10988: }
10989:
1.713 albertel 10990: # get the collection of conditions for this resource
1.26 www 10991: sub condval {
10992: my $condidx=shift;
1.54 www 10993: my $allpathcond='';
1.713 albertel 10994: foreach my $cond (split(/\|/,$condidx)) {
10995: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
10996: $allpathcond.=
10997: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
10998: }
1.191 harris41 10999: }
1.54 www 11000: $allpathcond=~s/\|$//;
1.713 albertel 11001: return &docondval($allpathcond);
11002: }
11003:
11004: #evaluates an expression of conditions
11005: sub docondval {
11006: my ($allpathcond) = @_;
11007: my $result=0;
11008: if ($env{'request.course.id'}
11009: && defined($allpathcond)) {
11010: my $operand='|';
11011: my @stack;
11012: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
11013: if ($chunk eq '(') {
11014: push @stack,($operand,$result);
11015: } elsif ($chunk eq ')') {
11016: my $before=pop @stack;
11017: if (pop @stack eq '&') {
11018: $result=$result>$before?$before:$result;
11019: } else {
11020: $result=$result>$before?$result:$before;
11021: }
11022: } elsif (($chunk eq '&') || ($chunk eq '|')) {
11023: $operand=$chunk;
11024: } else {
11025: my $new=directcondval($chunk);
11026: if ($operand eq '&') {
11027: $result=$result>$new?$new:$result;
11028: } else {
11029: $result=$result>$new?$result:$new;
11030: }
11031: }
11032: }
1.26 www 11033: }
11034: return $result;
1.421 albertel 11035: }
11036:
11037: # ---------------------------------------------------- Devalidate courseresdata
11038:
11039: sub devalidatecourseresdata {
11040: my ($coursenum,$coursedomain)=@_;
11041: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 11042: &devalidate_cache_new('courseres',$hashid);
1.28 www 11043: }
11044:
1.763 www 11045:
1.200 www 11046: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 11047: #
11048: # Parameters:
11049: # $coursenum - Number of the course.
11050: # $coursedomain - Domain at which the course was created.
11051: # Returns:
11052: # A hash of the course parameters along (I think) with timestamps
11053: # and version info.
1.877 foxr 11054:
1.624 albertel 11055: sub get_courseresdata {
11056: my ($coursenum,$coursedomain)=@_;
1.200 www 11057: my $coursehom=&homeserver($coursenum,$coursedomain);
11058: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 11059: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 11060: my %dumpreply;
1.417 albertel 11061: unless (defined($cached)) {
1.624 albertel 11062: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 11063: $result=\%dumpreply;
1.251 albertel 11064: my ($tmp) = keys(%dumpreply);
11065: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 11066: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 11067: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
11068: return $tmp;
1.416 albertel 11069: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 11070: $result=undef;
1.599 albertel 11071: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 11072: }
11073: }
1.624 albertel 11074: return $result;
11075: }
11076:
1.633 albertel 11077: sub devalidateuserresdata {
11078: my ($uname,$udom)=@_;
11079: my $hashid="$udom:$uname";
11080: &devalidate_cache_new('userres',$hashid);
11081: }
11082:
1.624 albertel 11083: sub get_userresdata {
11084: my ($uname,$udom)=@_;
11085: #most student don\'t have any data set, check if there is some data
11086: if (&EXT_cache_status($udom,$uname)) { return undef; }
11087:
11088: my $hashid="$udom:$uname";
11089: my ($result,$cached)=&is_cached_new('userres',$hashid);
11090: if (!defined($cached)) {
11091: my %resourcedata=&dump('resourcedata',$udom,$uname);
11092: $result=\%resourcedata;
11093: &do_cache_new('userres',$hashid,$result,600);
11094: }
11095: my ($tmp)=keys(%$result);
11096: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
11097: return $result;
11098: }
11099: #error 2 occurs when the .db doesn't exist
11100: if ($tmp!~/error: 2 /) {
1.1172.2.71 raeburn 11101: if ((!defined($cached)) || ($tmp ne 'con_lost')) {
11102: &logthis("<font color=\"blue\">WARNING:".
11103: " Trying to get resource data for ".
11104: $uname." at ".$udom.": ".
11105: $tmp."</font>");
11106: }
1.624 albertel 11107: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 11108: #&EXT_cache_set($udom,$uname);
11109: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 11110: undef($tmp); # not really an error so don't send it back
1.624 albertel 11111: }
11112: return $tmp;
11113: }
1.879 foxr 11114: #----------------------------------------------- resdata - return resource data
11115: # Purpose:
11116: # Return resource data for either users or for a course.
11117: # Parameters:
11118: # $name - Course/user name.
11119: # $domain - Name of the domain the user/course is registered on.
11120: # $type - Type of thing $name is (must be 'course' or 'user'
11121: # @which - Array of names of resources desired.
11122: # Returns:
11123: # The value of the first reasource in @which that is found in the
11124: # resource hash.
11125: # Exceptional Conditions:
11126: # If the $type passed in is not valid (not the string 'course' or
11127: # 'user', an undefined reference is returned.
11128: # If none of the resources are found, an undef is returned
1.624 albertel 11129: sub resdata {
11130: my ($name,$domain,$type,@which)=@_;
11131: my $result;
11132: if ($type eq 'course') {
11133: $result=&get_courseresdata($name,$domain);
11134: } elsif ($type eq 'user') {
11135: $result=&get_userresdata($name,$domain);
11136: }
11137: if (!ref($result)) { return $result; }
1.251 albertel 11138: foreach my $item (@which) {
1.927 albertel 11139: if (defined($result->{$item->[0]})) {
11140: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 11141: }
1.250 albertel 11142: }
1.291 albertel 11143: return undef;
1.200 www 11144: }
11145:
1.1172.2.31 raeburn 11146: sub get_numsuppfiles {
11147: my ($cnum,$cdom,$ignorecache)=@_;
11148: my $hashid=$cnum.':'.$cdom;
11149: my ($suppcount,$cached);
11150: unless ($ignorecache) {
11151: ($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
11152: }
11153: unless (defined($cached)) {
11154: my $chome=&homeserver($cnum,$cdom);
11155: unless ($chome eq 'no_host') {
11156: ($suppcount,my $errors) = (0,0);
11157: my $suppmap = 'supplemental.sequence';
11158: ($suppcount,$errors) =
11159: &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
11160: }
11161: &do_cache_new('suppcount',$hashid,$suppcount,600);
11162: }
11163: return $suppcount;
11164: }
11165:
1.379 matthew 11166: #
11167: # EXT resource caching routines
11168: #
11169:
11170: sub clear_EXT_cache_status {
1.383 albertel 11171: &delenv('cache.EXT.');
1.379 matthew 11172: }
11173:
11174: sub EXT_cache_status {
11175: my ($target_domain,$target_user) = @_;
1.383 albertel 11176: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 11177: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 11178: # We know already the user has no data
11179: return 1;
11180: } else {
11181: return 0;
11182: }
11183: }
11184:
11185: sub EXT_cache_set {
11186: my ($target_domain,$target_user) = @_;
1.383 albertel 11187: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 11188: #&appenv({$cachename => time});
1.379 matthew 11189: }
11190:
1.28 www 11191: # --------------------------------------------------------- Value of a Variable
1.58 www 11192: sub EXT {
1.715 albertel 11193:
1.1172.2.28 raeburn 11194: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
1.68 www 11195: unless ($varname) { return ''; }
1.218 albertel 11196: #get real user name/domain, courseid and symb
11197: my $courseid;
1.359 albertel 11198: my $publicuser;
1.427 www 11199: if ($symbparm) {
11200: $symbparm=&get_symb_from_alias($symbparm);
11201: }
1.218 albertel 11202: if (!($uname && $udom)) {
1.790 albertel 11203: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 11204: if (!$symbparm) { $symbparm=$cursymb; }
11205: } else {
1.620 albertel 11206: $courseid=$env{'request.course.id'};
1.218 albertel 11207: }
1.48 www 11208: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
11209: my $rest;
1.320 albertel 11210: if (defined($therest[0])) {
1.48 www 11211: $rest=join('.',@therest);
11212: } else {
11213: $rest='';
11214: }
1.320 albertel 11215:
1.57 www 11216: my $qualifierrest=$qualifier;
11217: if ($rest) { $qualifierrest.='.'.$rest; }
11218: my $spacequalifierrest=$space;
11219: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 11220: if ($realm eq 'user') {
1.48 www 11221: # --------------------------------------------------------------- user.resource
11222: if ($space eq 'resource') {
1.651 albertel 11223: if ( (defined($Apache::lonhomework::parsing_a_problem)
11224: || defined($Apache::lonhomework::parsing_a_task))
11225: &&
1.744 albertel 11226: ($symbparm eq &symbread()) ) {
11227: # if we are in the middle of processing the resource the
11228: # get the value we are planning on committing
11229: if (defined($Apache::lonhomework::results{$qualifierrest})) {
11230: return $Apache::lonhomework::results{$qualifierrest};
11231: } else {
11232: return $Apache::lonhomework::history{$qualifierrest};
11233: }
1.335 albertel 11234: } else {
1.359 albertel 11235: my %restored;
1.620 albertel 11236: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 11237: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
11238: } else {
11239: %restored=&restore($symbparm,$courseid,$udom,$uname);
11240: }
1.335 albertel 11241: return $restored{$qualifierrest};
11242: }
1.48 www 11243: # ----------------------------------------------------------------- user.access
11244: } elsif ($space eq 'access') {
1.218 albertel 11245: # FIXME - not supporting calls for a specific user
1.48 www 11246: return &allowed($qualifier,$rest);
11247: # ------------------------------------------ user.preferences, user.environment
11248: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 11249: if (($uname eq $env{'user.name'}) &&
11250: ($udom eq $env{'user.domain'})) {
11251: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 11252: } else {
1.359 albertel 11253: my %returnhash;
11254: if (!$publicuser) {
11255: %returnhash=&userenvironment($udom,$uname,
11256: $qualifierrest);
11257: }
1.218 albertel 11258: return $returnhash{$qualifierrest};
11259: }
1.48 www 11260: # ----------------------------------------------------------------- user.course
11261: } elsif ($space eq 'course') {
1.218 albertel 11262: # FIXME - not supporting calls for a specific user
1.620 albertel 11263: return $env{join('.',('request.course',$qualifier))};
1.48 www 11264: # ------------------------------------------------------------------- user.role
11265: } elsif ($space eq 'role') {
1.218 albertel 11266: # FIXME - not supporting calls for a specific user
1.620 albertel 11267: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 11268: if ($qualifier eq 'value') {
11269: return $role;
11270: } elsif ($qualifier eq 'extent') {
11271: return $where;
11272: }
11273: # ----------------------------------------------------------------- user.domain
11274: } elsif ($space eq 'domain') {
1.218 albertel 11275: return $udom;
1.48 www 11276: # ------------------------------------------------------------------- user.name
11277: } elsif ($space eq 'name') {
1.218 albertel 11278: return $uname;
1.48 www 11279: # ---------------------------------------------------- Any other user namespace
1.29 www 11280: } else {
1.359 albertel 11281: my %reply;
11282: if (!$publicuser) {
11283: %reply=&get($space,[$qualifierrest],$udom,$uname);
11284: }
11285: return $reply{$qualifierrest};
1.48 www 11286: }
1.236 www 11287: } elsif ($realm eq 'query') {
11288: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 11289: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
11290: [$spacequalifierrest]);
1.620 albertel 11291: return $env{'form.'.$spacequalifierrest};
1.236 www 11292: } elsif ($realm eq 'request') {
1.48 www 11293: # ------------------------------------------------------------- request.browser
11294: if ($space eq 'browser') {
1.1145 bisitz 11295: return $env{'browser.'.$qualifier};
1.57 www 11296: # ------------------------------------------------------------ request.filename
11297: } else {
1.620 albertel 11298: return $env{'request.'.$spacequalifierrest};
1.29 www 11299: }
1.28 www 11300: } elsif ($realm eq 'course') {
1.48 www 11301: # ---------------------------------------------------------- course.description
1.620 albertel 11302: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 11303: } elsif ($realm eq 'resource') {
1.165 www 11304:
1.620 albertel 11305: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 11306: if (!$symbparm) { $symbparm=&symbread(); }
11307: }
1.693 albertel 11308:
1.1172.2.30 raeburn 11309: if ($qualifier eq '') {
11310: if ($space eq 'title') {
11311: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
11312: return &gettitle($symbparm);
11313: }
1.693 albertel 11314:
1.1172.2.30 raeburn 11315: if ($space eq 'map') {
11316: my ($map) = &decode_symb($symbparm);
11317: return &symbread($map);
11318: }
11319: if ($space eq 'maptitle') {
11320: my ($map) = &decode_symb($symbparm);
11321: return &gettitle($map);
11322: }
11323: if ($space eq 'filename') {
11324: if ($symbparm) {
11325: return &clutter((&decode_symb($symbparm))[2]);
11326: }
11327: return &hreflocation('',$env{'request.filename'});
1.905 albertel 11328: }
1.1172.2.30 raeburn 11329:
11330: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
11331: if ($space eq 'visibleparts') {
11332: my $navmap = Apache::lonnavmaps::navmap->new();
11333: my $item;
11334: if (ref($navmap)) {
11335: my $res = $navmap->getBySymb($symbparm);
11336: my $parts = $res->parts();
11337: if (ref($parts) eq 'ARRAY') {
11338: $item = join(',',@{$parts});
11339: }
11340: undef($navmap);
11341: }
11342: return $item;
11343: }
11344: }
11345: }
1.693 albertel 11346:
11347: my ($section, $group, @groups);
1.593 albertel 11348: my ($courselevelm,$courselevel);
1.1172.2.28 raeburn 11349: if (($courseid eq '') && ($cid)) {
11350: $courseid = $cid;
11351: }
11352: if (($symbparm && $courseid) &&
11353: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
1.165 www 11354:
1.218 albertel 11355: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 11356:
1.60 www 11357: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 11358: my $symbp=$symbparm;
1.735 albertel 11359: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 11360:
11361: my $symbparm=$symbp.'.'.$spacequalifierrest;
11362: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
11363:
1.620 albertel 11364: if (($env{'user.name'} eq $uname) &&
11365: ($env{'user.domain'} eq $udom)) {
11366: $section=$env{'request.course.sec'};
1.733 raeburn 11367: @groups = split(/:/,$env{'request.course.groups'});
11368: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 11369: } else {
1.539 albertel 11370: if (! defined($usection)) {
1.551 albertel 11371: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 11372: } else {
11373: $section = $usection;
11374: }
1.733 raeburn 11375: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 11376: }
11377:
11378: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
11379: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
11380: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
11381:
1.593 albertel 11382: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 11383: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 11384: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 11385:
1.60 www 11386: # ----------------------------------------------------------- first, check user
1.624 albertel 11387:
11388: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 11389: ([$courselevelr,'resource'],
11390: [$courselevelm,'map' ],
11391: [$courselevel, 'course' ]));
1.931 albertel 11392: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 11393:
1.594 albertel 11394: # ------------------------------------------------ second, check some of course
1.684 raeburn 11395: my $coursereply;
1.691 raeburn 11396: if (@groups > 0) {
11397: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
11398: $mapparm,$spacequalifierrest);
1.927 albertel 11399: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 11400: }
1.96 www 11401:
1.684 raeburn 11402: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 11403: $env{'course.'.$courseid.'.domain'},
11404: 'course',
11405: ([$seclevelr, 'resource'],
11406: [$seclevelm, 'map' ],
11407: [$seclevel, 'course' ],
11408: [$courselevelr,'resource']));
11409: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 11410:
1.60 www 11411: # ------------------------------------------------------ third, check map parms
1.218 albertel 11412: my %parmhash=();
11413: my $thisparm='';
11414: if (tie(%parmhash,'GDBM_File',
1.620 albertel 11415: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 11416: &GDBM_READER(),0640)) {
1.218 albertel 11417: $thisparm=$parmhash{$symbparm};
11418: untie(%parmhash);
11419: }
1.927 albertel 11420: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 11421: }
1.594 albertel 11422: # ------------------------------------------ fourth, look in resource metadata
1.71 www 11423:
1.218 albertel 11424: $spacequalifierrest=~s/\./\_/;
1.282 albertel 11425: my $filename;
11426: if (!$symbparm) { $symbparm=&symbread(); }
11427: if ($symbparm) {
1.409 www 11428: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 11429: } else {
1.620 albertel 11430: $filename=$env{'request.filename'};
1.282 albertel 11431: }
11432: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 11433: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 11434: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 11435: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 11436:
1.927 albertel 11437: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 11438: if ($symbparm && defined($courseid) &&
1.620 albertel 11439: $courseid eq $env{'request.course.id'}) {
1.624 albertel 11440: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
11441: $env{'course.'.$courseid.'.domain'},
11442: 'course',
1.927 albertel 11443: ([$courselevelm,'map' ],
11444: [$courselevel, 'course']));
11445: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 11446: }
1.145 www 11447: # ------------------------------------------------------------------ Cascade up
1.218 albertel 11448: unless ($space eq '0') {
1.336 albertel 11449: my @parts=split(/_/,$space);
11450: my $id=pop(@parts);
11451: my $part=join('_',@parts);
11452: if ($part eq '') { $part='0'; }
1.927 albertel 11453: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 11454: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 11455: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 11456: }
1.395 albertel 11457: if ($recurse) { return undef; }
11458: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 11459: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 11460: # ---------------------------------------------------- Any other user namespace
11461: } elsif ($realm eq 'environment') {
11462: # ----------------------------------------------------------------- environment
1.620 albertel 11463: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
11464: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 11465: } else {
1.770 albertel 11466: if ($uname eq 'anonymous' && $udom eq '') {
11467: return '';
11468: }
1.219 albertel 11469: my %returnhash=&userenvironment($udom,$uname,
11470: $spacequalifierrest);
11471: return $returnhash{$spacequalifierrest};
11472: }
1.28 www 11473: } elsif ($realm eq 'system') {
1.48 www 11474: # ----------------------------------------------------------------- system.time
11475: if ($space eq 'time') {
11476: return time;
11477: }
1.696 albertel 11478: } elsif ($realm eq 'server') {
11479: # ----------------------------------------------------------------- system.time
11480: if ($space eq 'name') {
11481: return $ENV{'SERVER_NAME'};
11482: }
1.28 www 11483: }
1.48 www 11484: return '';
1.61 www 11485: }
11486:
1.927 albertel 11487: sub get_reply {
11488: my ($reply_value) = @_;
1.940 raeburn 11489: if (ref($reply_value) eq 'ARRAY') {
11490: if (wantarray) {
11491: return @$reply_value;
11492: }
11493: return $reply_value->[0];
11494: } else {
11495: return $reply_value;
1.927 albertel 11496: }
11497: }
11498:
1.691 raeburn 11499: sub check_group_parms {
11500: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
11501: my @groupitems = ();
11502: my $resultitem;
1.927 albertel 11503: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 11504: foreach my $group (@{$groups}) {
11505: foreach my $level (@levels) {
1.927 albertel 11506: my $item = $courseid.'.['.$group.'].'.$level->[0];
11507: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 11508: }
11509: }
11510: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
11511: $env{'course.'.$courseid.'.domain'},
11512: 'course',@groupitems);
11513: return $coursereply;
11514: }
11515:
11516: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 11517: my ($courseid,@groups) = @_;
11518: @groups = sort(@groups);
1.691 raeburn 11519: return @groups;
11520: }
11521:
1.395 albertel 11522: sub packages_tab_default {
11523: my ($uri,$varname)=@_;
11524: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 11525:
11526: my (@extension,@specifics,$do_default);
11527: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 11528: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 11529: if ($pack_type eq 'default') {
11530: $do_default=1;
11531: } elsif ($pack_type eq 'extension') {
11532: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 11533: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 11534: # only look at packages defaults for packages that this id is
1.738 albertel 11535: push(@specifics,[$package,$pack_type,$pack_part]);
11536: }
11537: }
11538: # first look for a package that matches the requested part id
11539: foreach my $package (@specifics) {
11540: my (undef,$pack_type,$pack_part)=@{$package};
11541: next if ($pack_part ne $part);
11542: if (defined($packagetab{"$pack_type&$name&default"})) {
11543: return $packagetab{"$pack_type&$name&default"};
11544: }
11545: }
11546: # look for any possible matching non extension_ package
11547: foreach my $package (@specifics) {
11548: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 11549: if (defined($packagetab{"$pack_type&$name&default"})) {
11550: return $packagetab{"$pack_type&$name&default"};
11551: }
1.585 albertel 11552: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 11553: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
11554: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 11555: }
11556: }
1.738 albertel 11557: # look for any posible extension_ match
11558: foreach my $package (@extension) {
11559: my ($package,$pack_type)=@{$package};
11560: if (defined($packagetab{"$pack_type&$name&default"})) {
11561: return $packagetab{"$pack_type&$name&default"};
11562: }
11563: if (defined($packagetab{$package."&$name&default"})) {
11564: return $packagetab{$package."&$name&default"};
11565: }
11566: }
11567: # look for a global default setting
11568: if ($do_default && defined($packagetab{"default&$name&default"})) {
11569: return $packagetab{"default&$name&default"};
11570: }
1.395 albertel 11571: return undef;
11572: }
11573:
1.334 albertel 11574: sub add_prefix_and_part {
11575: my ($prefix,$part)=@_;
11576: my $keyroot;
11577: if (defined($prefix) && $prefix !~ /^__/) {
11578: # prefix that has a part already
11579: $keyroot=$prefix;
11580: } elsif (defined($prefix)) {
11581: # prefix that is missing a part
11582: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
11583: } else {
11584: # no prefix at all
11585: if (defined($part)) { $keyroot='_'.$part; }
11586: }
11587: return $keyroot;
11588: }
11589:
1.71 www 11590: # ---------------------------------------------------------------- Get metadata
11591:
1.599 albertel 11592: my %metaentry;
1.1070 www 11593: my %importedpartids;
1.1172.2.99 raeburn 11594: my %importedrespids;
1.71 www 11595: sub metadata {
1.176 www 11596: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 11597: $uri=&declutter($uri);
1.288 albertel 11598: # if it is a non metadata possible uri return quickly
1.529 albertel 11599: if (($uri eq '') ||
11600: (($uri =~ m|^/*adm/|) &&
1.1172.2.20 raeburn 11601: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard)$})) ||
1.1108 raeburn 11602: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 11603: return undef;
11604: }
1.1172.2.49 raeburn 11605: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
1.924 albertel 11606: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 11607: return undef;
1.288 albertel 11608: }
1.73 www 11609: my $filename=$uri;
11610: $uri=~s/\.meta$//;
1.172 www 11611: #
11612: # Is the metadata already cached?
1.177 www 11613: # Look at timestamp of caching
1.172 www 11614: # Everything is cached by the main uri, libraries are never directly cached
11615: #
1.428 albertel 11616: if (!defined($liburi)) {
1.599 albertel 11617: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 11618: if (defined($cached)) { return $result->{':'.$what}; }
11619: }
11620: {
1.1069 www 11621: # Imported parts would go here
1.1172.2.99 raeburn 11622: my @origfiletagids=();
1.1069 www 11623: my $importedparts=0;
1.1172.2.99 raeburn 11624:
11625: # Imported responseids would go here
11626: my $importedresponses=0;
1.172 www 11627: #
11628: # Is this a recursive call for a library?
11629: #
1.599 albertel 11630: # if (! exists($metacache{$uri})) {
11631: # $metacache{$uri}={};
11632: # }
1.924 albertel 11633: my $cachetime = 60*60;
1.171 www 11634: if ($liburi) {
11635: $liburi=&declutter($liburi);
11636: $filename=$liburi;
1.401 bowersj2 11637: } else {
1.599 albertel 11638: &devalidate_cache_new('meta',$uri);
11639: undef(%metaentry);
1.401 bowersj2 11640: }
1.140 www 11641: my %metathesekeys=();
1.73 www 11642: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 11643: my $metastring;
1.1140 www 11644: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 11645: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 11646: $metastring =
1.929 albertel 11647: &Apache::lonnet::ssi_body($which,
1.924 albertel 11648: ('grade_target' => 'meta'));
11649: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 11650: } elsif (($uri !~ m -^(editupload)/-) &&
11651: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 11652: my $file=&filelocation('',&clutter($filename));
1.599 albertel 11653: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 11654: $metastring=&getfile($file);
1.489 albertel 11655: }
1.208 albertel 11656: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 11657: my $token;
1.140 www 11658: undef %metathesekeys;
1.71 www 11659: while ($token=$parser->get_token) {
1.339 albertel 11660: if ($token->[0] eq 'S') {
11661: if (defined($token->[2]->{'package'})) {
1.172 www 11662: #
11663: # This is a package - get package info
11664: #
1.339 albertel 11665: my $package=$token->[2]->{'package'};
11666: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11667: if (defined($token->[2]->{'id'})) {
11668: $keyroot.='_'.$token->[2]->{'id'};
11669: }
1.599 albertel 11670: if ($metaentry{':packages'}) {
11671: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 11672: } else {
1.599 albertel 11673: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 11674: }
1.736 albertel 11675: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 11676: my $part=$keyroot;
11677: $part=~s/^\_//;
1.736 albertel 11678: if ($pack_entry=~/^\Q$package\E\&/ ||
11679: $pack_entry=~/^\Q$package\E_0\&/) {
11680: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 11681: # ignore package.tab specified default values
11682: # here &package_tab_default() will fetch those
11683: if ($subp eq 'default') { next; }
1.736 albertel 11684: my $value=$packagetab{$pack_entry};
1.432 albertel 11685: my $unikey;
11686: if ($pack =~ /_0$/) {
11687: $unikey='parameter_0_'.$name;
11688: $part=0;
11689: } else {
11690: $unikey='parameter'.$keyroot.'_'.$name;
11691: }
1.339 albertel 11692: if ($subp eq 'display') {
11693: $value.=' [Part: '.$part.']';
11694: }
1.599 albertel 11695: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 11696: $metathesekeys{$unikey}=1;
1.599 albertel 11697: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
11698: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 11699: }
1.599 albertel 11700: if (defined($metaentry{':'.$unikey.'.default'})) {
11701: $metaentry{':'.$unikey}=
11702: $metaentry{':'.$unikey.'.default'};
1.356 albertel 11703: }
1.339 albertel 11704: }
11705: }
11706: } else {
1.172 www 11707: #
11708: # This is not a package - some other kind of start tag
1.339 albertel 11709: #
11710: my $entry=$token->[1];
1.1068 www 11711: my $unikey='';
1.175 www 11712:
1.339 albertel 11713: if ($entry eq 'import') {
1.175 www 11714: #
11715: # Importing a library here
1.339 albertel 11716: #
1.1067 www 11717: my $location=$parser->get_text('/import');
11718: my $dir=$filename;
11719: $dir=~s|[^/]*$||;
11720: $location=&filelocation($dir,$location);
1.1172.2.99 raeburn 11721:
11722: my $importid=$token->[2]->{'id'};
1.1068 www 11723: my $importmode=$token->[2]->{'importmode'};
1.1172.2.99 raeburn 11724: #
11725: # Check metadata for imported file to
11726: # see if it contained response items
11727: #
11728: my %currmetaentry = %metaentry;
11729: my $libresponseorder = &metadata($location,'responseorder');
11730: my $origfile;
11731: if ($libresponseorder ne '') {
11732: if ($#origfiletagids<0) {
11733: undef(%importedrespids);
11734: undef(%importedpartids);
11735: }
11736: @{$importedrespids{$importid}} = split(/\s*,\s*/,$libresponseorder);
11737: if (@{$importedrespids{$importid}} > 0) {
11738: $importedresponses = 1;
11739: # We need to get the original file and the imported file to get the response order correct
11740: # Load and inspect original file
11741: if ($#origfiletagids<0) {
11742: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
11743: $origfile=&getfile($origfilelocation);
11744: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11745: }
11746: }
11747: }
11748: # Do not overwrite contents of %metaentry hash for resource itself with
11749: # hash populated for imported library file
11750: %metaentry = %currmetaentry;
11751: undef(%currmetaentry);
1.1068 www 11752: if ($importmode eq 'problem') {
1.1069 www 11753: # Import as problem/response
1.1068 www 11754: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11755: } elsif ($importmode eq 'part') {
11756: # Import as part(s)
1.1069 www 11757: $importedparts=1;
11758: # We need to get the original file and the imported file to get the part order correct
11759: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
1.1172.2.99 raeburn 11760: # Load and inspect original file if we didn't do that already
11761: if ($#origfiletagids<0) {
11762: undef(%importedrespids);
11763: undef(%importedpartids);
11764: if ($origfile eq '') {
11765: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
11766: $origfile=&getfile($origfilelocation);
11767: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11768: }
1.1070 www 11769: }
11770:
1.1069 www 11771: # Load and inspect imported file
11772: my $impfile=&getfile($location);
11773: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11774: if ($#impfilepartids>=0) {
11775: # This problem had parts
1.1070 www 11776: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 11777: } else {
11778: # Importing by turning a single problem into a problem part
11779: # It gets the import-tags ID as part-ID
11780: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 11781: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 11782: }
1.1068 www 11783: } else {
11784: # Normal import
11785: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11786: if (defined($token->[2]->{'id'})) {
11787: $unikey.='_'.$token->[2]->{'id'};
11788: }
1.1067 www 11789: }
11790:
1.339 albertel 11791: if ($depthcount<20) {
1.736 albertel 11792: my $metadata =
11793: &metadata($uri,'keys', $location,$unikey,
11794: $depthcount+1);
11795: foreach my $meta (split(',',$metadata)) {
11796: $metaentry{':'.$meta}=$metaentry{':'.$meta};
11797: $metathesekeys{$meta}=1;
1.339 albertel 11798: }
1.1068 www 11799:
11800: }
1.1067 www 11801: } else {
11802: #
11803: # Not importing, some other kind of non-package, non-library start tag
11804: #
11805: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
11806: if (defined($token->[2]->{'id'})) {
11807: $unikey.='_'.$token->[2]->{'id'};
11808: }
1.339 albertel 11809: if (defined($token->[2]->{'name'})) {
11810: $unikey.='_'.$token->[2]->{'name'};
11811: }
11812: $metathesekeys{$unikey}=1;
1.736 albertel 11813: foreach my $param (@{$token->[3]}) {
11814: $metaentry{':'.$unikey.'.'.$param} =
11815: $token->[2]->{$param};
1.339 albertel 11816: }
11817: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 11818: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 11819: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
11820: # only ws inside the tag, and not in default, so use default
11821: # as value
1.599 albertel 11822: $metaentry{':'.$unikey}=$default;
1.908 albertel 11823: } elsif ( $internaltext =~ /\S/ ) {
11824: # something interesting inside the tag
11825: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 11826: } else {
1.908 albertel 11827: # no interesting values, don't set a default
1.339 albertel 11828: }
1.172 www 11829: # end of not-a-package not-a-library import
1.339 albertel 11830: }
1.172 www 11831: # end of not-a-package start tag
1.339 albertel 11832: }
1.172 www 11833: # the next is the end of "start tag"
1.339 albertel 11834: }
11835: }
1.483 albertel 11836: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 11837: $extension = lc($extension);
11838: if ($extension eq 'htm') { $extension='html'; }
11839:
1.737 albertel 11840: foreach my $key (keys(%packagetab)) {
1.483 albertel 11841: #no specific packages #how's our extension
11842: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 11843: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 11844: \%metathesekeys);
11845: }
1.883 albertel 11846:
11847: if (!exists($metaentry{':packages'})
11848: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 11849: foreach my $key (keys(%packagetab)) {
1.483 albertel 11850: #no specific packages well let's get default then
11851: if ($key!~/^default&/) { next; }
1.488 albertel 11852: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 11853: \%metathesekeys);
11854: }
11855: }
1.338 www 11856: # are there custom rights to evaluate
1.599 albertel 11857: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 11858:
1.338 www 11859: #
11860: # Importing a rights file here
1.339 albertel 11861: #
11862: unless ($depthcount) {
1.599 albertel 11863: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 11864: my $dir=$filename;
11865: $dir=~s|[^/]*$||;
11866: $location=&filelocation($dir,$location);
1.736 albertel 11867: my $rights_metadata =
11868: &metadata($uri,'keys',$location,'_rights',
11869: $depthcount+1);
11870: foreach my $rights (split(',',$rights_metadata)) {
11871: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
11872: $metathesekeys{$rights}=1;
1.339 albertel 11873: }
11874: }
11875: }
1.737 albertel 11876: # uniqifiy package listing
11877: my %seen;
11878: my @uniq_packages =
11879: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
11880: $metaentry{':packages'} = join(',',@uniq_packages);
11881:
1.1172.2.99 raeburn 11882: if (($importedresponses) || ($importedparts)) {
11883: if ($importedparts) {
1.1070 www 11884: # We had imported parts and need to rebuild partorder
1.1172.2.99 raeburn 11885: $metaentry{':partorder'}='';
11886: $metathesekeys{'partorder'}=1;
11887: }
11888: if ($importedresponses) {
11889: # We had imported responses and need to rebuild responseorder
11890: $metaentry{':responseorder'}='';
11891: $metathesekeys{'responseorder'}=1;
11892: }
11893: for (my $index=0;$index<$#origfiletagids;$index+=2) {
11894: my $origid = $origfiletagids[$index+1];
11895: if ($origfiletagids[$index] eq 'part') {
11896: # Original part, part of the problem
11897: if ($importedparts) {
11898: $metaentry{':partorder'}.=','.$origid;
11899: }
11900: } elsif ($origfiletagids[$index] eq 'import') {
11901: if ($importedparts) {
11902: # We have imported parts at this position
11903: $metaentry{':partorder'}.=','.$importedpartids{$origid};
11904: }
11905: if ($importedresponses) {
11906: # We have imported responses at this position
11907: if (ref($importedrespids{$origid}) eq 'ARRAY') {
11908: $metaentry{':responseorder'}.=','.join(',',map { $origid.'_'.$_ } @{$importedrespids{$origid}});
11909: }
11910: }
11911: } else {
11912: # Original response item, part of the problem
11913: if ($importedresponses) {
11914: $metaentry{':responseorder'}.=','.$origid;
11915: }
11916: }
11917: }
11918: if ($importedparts) {
11919: $metaentry{':partorder'}=~s/^\,//;
11920: }
11921: if ($importedresponses) {
11922: $metaentry{':responseorder'}=~s/^\,//;
11923: }
1.1070 www 11924: }
11925:
1.737 albertel 11926: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 11927: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
1.1172.2.58 raeburn 11928: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
1.924 albertel 11929: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 11930: # this is the end of "was not already recently cached
1.71 www 11931: }
1.599 albertel 11932: return $metaentry{':'.$what};
1.261 albertel 11933: }
11934:
1.488 albertel 11935: sub metadata_create_package_def {
1.483 albertel 11936: my ($uri,$key,$package,$metathesekeys)=@_;
11937: my ($pack,$name,$subp)=split(/\&/,$key);
11938: if ($subp eq 'default') { next; }
11939:
1.599 albertel 11940: if (defined($metaentry{':packages'})) {
11941: $metaentry{':packages'}.=','.$package;
1.483 albertel 11942: } else {
1.599 albertel 11943: $metaentry{':packages'}=$package;
1.483 albertel 11944: }
11945: my $value=$packagetab{$key};
11946: my $unikey;
11947: $unikey='parameter_0_'.$name;
1.599 albertel 11948: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 11949: $$metathesekeys{$unikey}=1;
1.599 albertel 11950: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
11951: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 11952: }
1.599 albertel 11953: if (defined($metaentry{':'.$unikey.'.default'})) {
11954: $metaentry{':'.$unikey}=
11955: $metaentry{':'.$unikey.'.default'};
1.483 albertel 11956: }
11957: }
11958:
1.261 albertel 11959: sub metadata_generate_part0 {
11960: my ($metadata,$metacache,$uri) = @_;
11961: my %allnames;
1.737 albertel 11962: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 11963: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 11964: my $part=$$metacache{':'.$metakey.'.part'};
11965: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 11966: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 11967: $allnames{$name}=$part;
11968: }
11969: }
11970: }
11971: foreach my $name (keys(%allnames)) {
11972: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 11973: my $key=":parameter_0_$name";
1.261 albertel 11974: $$metacache{"$key.part"}='0';
11975: $$metacache{"$key.name"}=$name;
1.428 albertel 11976: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 11977: $allnames{$name}.'_'.$name.
11978: '.type'};
1.428 albertel 11979: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 11980: '.display'};
1.644 www 11981: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 11982: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 11983: $$metacache{"$key.display"}=$olddis;
11984: }
1.71 www 11985: }
11986:
1.764 albertel 11987: # ------------------------------------------------------ Devalidate title cache
11988:
11989: sub devalidate_title_cache {
11990: my ($url)=@_;
11991: if (!$env{'request.course.id'}) { return; }
11992: my $symb=&symbread($url);
11993: if (!$symb) { return; }
11994: my $key=$env{'request.course.id'}."\0".$symb;
11995: &devalidate_cache_new('title',$key);
11996: }
11997:
1.1014 droeschl 11998: # ------------------------------------------------- Get the title of a course
11999:
12000: sub current_course_title {
12001: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
12002: }
1.301 www 12003: # ------------------------------------------------- Get the title of a resource
12004:
12005: sub gettitle {
12006: my $urlsymb=shift;
12007: my $symb=&symbread($urlsymb);
1.534 albertel 12008: if ($symb) {
1.620 albertel 12009: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 12010: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 12011: if (defined($cached)) {
12012: return $result;
12013: }
1.534 albertel 12014: my ($map,$resid,$url)=&decode_symb($symb);
12015: my $title='';
1.907 albertel 12016: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
12017: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
12018: } else {
12019: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
12020: &GDBM_READER(),0640)) {
12021: my $mapid=$bighash{'map_pc_'.&clutter($map)};
12022: $title=$bighash{'title_'.$mapid.'.'.$resid};
12023: untie(%bighash);
12024: }
1.534 albertel 12025: }
12026: $title=~s/\&colon\;/\:/gs;
12027: if ($title) {
1.1159 www 12028: # Remember both $symb and $title for dynamic metadata
12029: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 12030: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 12031: # Cache this title and then return it
1.599 albertel 12032: return &do_cache_new('title',$key,$title,600);
1.534 albertel 12033: }
12034: $urlsymb=$url;
12035: }
12036: my $title=&metadata($urlsymb,'title');
12037: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
12038: return $title;
1.301 www 12039: }
1.613 albertel 12040:
1.614 albertel 12041: sub get_slot {
12042: my ($which,$cnum,$cdom)=@_;
12043: if (!$cnum || !$cdom) {
1.790 albertel 12044: (undef,my $courseid)=&whichuser();
1.620 albertel 12045: $cdom=$env{'course.'.$courseid.'.domain'};
12046: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 12047: }
1.703 albertel 12048: my $key=join("\0",'slots',$cdom,$cnum,$which);
12049: my %slotinfo;
12050: if (exists($remembered{$key})) {
12051: $slotinfo{$which} = $remembered{$key};
12052: } else {
12053: %slotinfo=&get('slots',[$which],$cdom,$cnum);
12054: &Apache::lonhomework::showhash(%slotinfo);
12055: my ($tmp)=keys(%slotinfo);
12056: if ($tmp=~/^error:/) { return (); }
12057: $remembered{$key} = $slotinfo{$which};
12058: }
1.616 albertel 12059: if (ref($slotinfo{$which}) eq 'HASH') {
12060: return %{$slotinfo{$which}};
12061: }
12062: return $slotinfo{$which};
1.614 albertel 12063: }
1.1150 raeburn 12064:
12065: sub get_reservable_slots {
12066: my ($cnum,$cdom,$uname,$udom) = @_;
12067: my $now = time;
12068: my $reservable_info;
12069: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
12070: if (exists($remembered{$key})) {
12071: $reservable_info = $remembered{$key};
12072: } else {
12073: my %resv;
12074: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
12075: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
12076: $reservable_info = \%resv;
12077: $remembered{$key} = $reservable_info;
12078: }
12079: return $reservable_info;
12080: }
12081:
12082: sub get_course_slots {
12083: my ($cnum,$cdom) = @_;
12084: my $hashid=$cnum.':'.$cdom;
12085: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
12086: if (defined($cached)) {
12087: if (ref($result) eq 'HASH') {
12088: return %{$result};
12089: }
12090: } else {
12091: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
12092: my ($tmp) = keys(%slots);
12093: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.1172.2.23 raeburn 12094: &do_cache_new('allslots',$hashid,\%slots,600);
1.1150 raeburn 12095: return %slots;
12096: }
12097: }
12098: return;
12099: }
12100:
12101: sub devalidate_slots_cache {
12102: my ($cnum,$cdom)=@_;
12103: my $hashid=$cnum.':'.$cdom;
12104: &devalidate_cache_new('allslots',$hashid);
12105: }
12106:
1.1172.2.8 raeburn 12107: sub get_coursechange {
12108: my ($cdom,$cnum) = @_;
12109: if ($cdom eq '' || $cnum eq '') {
12110: return unless ($env{'request.course.id'});
12111: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
12112: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
12113: }
12114: my $hashid=$cdom.'_'.$cnum;
12115: my ($change,$cached)=&is_cached_new('crschange',$hashid);
12116: if ((defined($cached)) && ($change ne '')) {
12117: return $change;
12118: } else {
12119: my %crshash;
12120: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
12121: if ($crshash{'internal.contentchange'} eq '') {
12122: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
12123: if ($change eq '') {
12124: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
12125: $change = $crshash{'internal.created'};
12126: }
12127: } else {
12128: $change = $crshash{'internal.contentchange'};
12129: }
12130: my $cachetime = 600;
12131: &do_cache_new('crschange',$hashid,$change,$cachetime);
12132: }
12133: return $change;
12134: }
12135:
12136: sub devalidate_coursechange_cache {
12137: my ($cnum,$cdom)=@_;
12138: my $hashid=$cnum.':'.$cdom;
12139: &devalidate_cache_new('crschange',$hashid);
12140: }
12141:
1.31 www 12142: # ------------------------------------------------- Update symbolic store links
12143:
12144: sub symblist {
12145: my ($mapname,%newhash)=@_;
1.438 www 12146: $mapname=&deversion(&declutter($mapname));
1.31 www 12147: my %hash;
1.620 albertel 12148: if (($env{'request.course.fn'}) && (%newhash)) {
12149: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 12150: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 12151: foreach my $url (keys(%newhash)) {
1.711 albertel 12152: next if ($url eq 'last_known'
12153: && $env{'form.no_update_last_known'});
12154: $hash{declutter($url)}=&encode_symb($mapname,
12155: $newhash{$url}->[1],
12156: $newhash{$url}->[0]);
1.191 harris41 12157: }
1.31 www 12158: if (untie(%hash)) {
12159: return 'ok';
12160: }
12161: }
12162: }
12163: return 'error';
1.212 www 12164: }
12165:
12166: # --------------------------------------------------------------- Verify a symb
12167:
12168: sub symbverify {
1.1172.2.11 raeburn 12169: my ($symb,$thisurl,$encstate)=@_;
1.510 www 12170: my $thisfn=$thisurl;
1.439 www 12171: $thisfn=&declutter($thisfn);
1.215 www 12172: # direct jump to resource in page or to a sequence - will construct own symbs
12173: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
12174: # check URL part
1.409 www 12175: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 12176:
1.431 www 12177: unless ($url eq $thisfn) { return 0; }
1.213 www 12178:
1.216 www 12179: $symb=&symbclean($symb);
1.510 www 12180: $thisurl=&deversion($thisurl);
1.439 www 12181: $thisfn=&deversion($thisfn);
1.213 www 12182:
12183: my %bighash;
12184: my $okay=0;
1.431 www 12185:
1.620 albertel 12186: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 12187: &GDBM_READER(),0640)) {
1.1172.2.13 raeburn 12188: my $noclutter;
1.1032 raeburn 12189: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
12190: $thisurl =~ s/\?.+$//;
1.1172.2.13 raeburn 12191: if ($map =~ m{^uploaded/.+\.page$}) {
12192: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
12193: $thisurl =~ s{^\Qhttp://https://\E}{https://};
12194: $noclutter = 1;
12195: }
12196: }
12197: my $ids;
12198: if ($noclutter) {
12199: $ids=$bighash{'ids_'.$thisurl};
12200: } else {
12201: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 12202: }
1.1102 raeburn 12203: unless ($ids) {
1.1172.2.13 raeburn 12204: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
1.1102 raeburn 12205: $ids=$bighash{$idkey};
1.216 www 12206: }
12207: if ($ids) {
12208: # ------------------------------------------------------------------- Has ID(s)
1.1172.2.13 raeburn 12209: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
12210: $symb =~ s/\?.+$//;
12211: }
1.800 albertel 12212: foreach my $id (split(/\,/,$ids)) {
12213: my ($mapid,$resid)=split(/\./,$id);
1.216 www 12214: if (
12215: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1172.2.13 raeburn 12216: eq $symb) {
1.1172.2.11 raeburn 12217: if (ref($encstate)) {
12218: $$encstate = $bighash{'encrypted_'.$id};
12219: }
1.1172.2.13 raeburn 12220: if (($env{'request.role.adv'}) ||
12221: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
1.1101 raeburn 12222: ($thisurl eq '/adm/navmaps')) {
1.1172.2.13 raeburn 12223: $okay=1;
12224: last;
12225: }
12226: }
12227: }
1.216 www 12228: }
1.213 www 12229: untie(%bighash);
12230: }
12231: return $okay;
1.31 www 12232: }
12233:
1.210 www 12234: # --------------------------------------------------------------- Clean-up symb
12235:
12236: sub symbclean {
12237: my $symb=shift;
1.568 albertel 12238: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 12239: # remove version from map
12240: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 12241:
1.210 www 12242: # remove version from URL
12243: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 12244:
1.507 www 12245: # remove wrapper
12246:
1.510 www 12247: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 12248: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 12249: return $symb;
1.409 www 12250: }
12251:
12252: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 12253:
12254: sub encode_symb {
12255: my ($map,$resid,$url)=@_;
12256: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
12257: }
1.409 www 12258:
12259: sub decode_symb {
1.568 albertel 12260: my $symb=shift;
12261: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
12262: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 12263: return (&fixversion($map),$resid,&fixversion($url));
12264: }
12265:
12266: sub fixversion {
12267: my $fn=shift;
1.609 banghart 12268: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 12269: my %bighash;
12270: my $uri=&clutter($fn);
1.620 albertel 12271: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 12272: # is this cached?
1.599 albertel 12273: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 12274: if (defined($cached)) { return $result; }
12275: # unfortunately not cached, or expired
1.620 albertel 12276: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 12277: &GDBM_READER(),0640)) {
12278: if ($bighash{'version_'.$uri}) {
12279: my $version=$bighash{'version_'.$uri};
1.444 www 12280: unless (($version eq 'mostrecent') ||
12281: ($version==&getversion($uri))) {
1.440 www 12282: $uri=~s/\.(\w+)$/\.$version\.$1/;
12283: }
12284: }
12285: untie %bighash;
1.413 www 12286: }
1.599 albertel 12287: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 12288: }
12289:
12290: sub deversion {
12291: my $url=shift;
12292: $url=~s/\.\d+\.(\w+)$/\.$1/;
12293: return $url;
1.210 www 12294: }
12295:
1.31 www 12296: # ------------------------------------------------------ Return symb list entry
12297:
12298: sub symbread {
1.1172.2.66 raeburn 12299: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_;
1.1172.2.54 raeburn 12300: my $cache_str='request.symbread.cached.'.$thisfn;
1.1172.2.66 raeburn 12301: if (defined($env{$cache_str})) {
12302: if ($ignorecachednull) {
12303: return $env{$cache_str} unless ($env{$cache_str} eq '');
12304: } else {
12305: return $env{$cache_str};
12306: }
12307: }
1.242 www 12308: # no filename provided? try from environment
1.1172.2.54 raeburn 12309: unless ($thisfn) {
1.620 albertel 12310: if ($env{'request.symb'}) {
1.1172.2.13 raeburn 12311: return $env{$cache_str}=&symbclean($env{'request.symb'});
12312: }
12313: $thisfn=$env{'request.filename'};
1.44 www 12314: }
1.569 albertel 12315: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 12316: # is that filename actually a symb? Verify, clean, and return
12317: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 12318: if (&symbverify($thisfn,$1)) {
1.620 albertel 12319: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 12320: }
1.242 www 12321: }
1.44 www 12322: $thisfn=declutter($thisfn);
1.31 www 12323: my %hash;
1.37 www 12324: my %bighash;
12325: my $syval='';
1.620 albertel 12326: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 12327: my $targetfn = $thisfn;
1.609 banghart 12328: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 12329: $targetfn = 'adm/wrapper/'.$thisfn;
12330: }
1.687 albertel 12331: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
12332: $targetfn=$1;
12333: }
1.620 albertel 12334: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 12335: &GDBM_READER(),0640)) {
1.481 raeburn 12336: $syval=$hash{$targetfn};
1.37 www 12337: untie(%hash);
12338: }
12339: # ---------------------------------------------------------- There was an entry
12340: if ($syval) {
1.601 albertel 12341: #unless ($syval=~/\_\d+$/) {
1.620 albertel 12342: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 12343: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 12344: #return $env{$cache_str}='';
1.601 albertel 12345: #}
12346: #$syval.=$1;
12347: #}
1.37 www 12348: } else {
12349: # ------------------------------------------------------- Was not in symb table
1.620 albertel 12350: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 12351: &GDBM_READER(),0640)) {
1.37 www 12352: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 12353: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 12354: unless ($ids) {
12355: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 12356: }
12357: unless ($ids) {
12358: # alias?
12359: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 12360: }
1.37 www 12361: if ($ids) {
12362: # ------------------------------------------------------------------- Has ID(s)
12363: my @possibilities=split(/\,/,$ids);
1.39 www 12364: if ($#possibilities==0) {
12365: # ----------------------------------------------- There is only one possibility
1.37 www 12366: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 12367: $syval=&encode_symb($bighash{'map_id_'.$mapid},
12368: $resid,$thisfn);
1.1172.2.66 raeburn 12369: if (ref($possibles) eq 'HASH') {
12370: $possibles->{$syval} = 1;
12371: }
12372: if ($checkforblock) {
12373: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids});
12374: if (@blockers) {
12375: $syval = '';
12376: return;
12377: }
12378: }
12379: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
1.39 www 12380: # ------------------------------------------ There is more than one possibility
12381: my $realpossible=0;
1.800 albertel 12382: foreach my $id (@possibilities) {
12383: my $file=$bighash{'src_'.$id};
1.1172.2.66 raeburn 12384: my $canaccess;
12385: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
12386: $canaccess = 1;
12387: } else {
12388: $canaccess = &allowed('bre',$file);
12389: }
12390: if ($canaccess) {
12391: my ($mapid,$resid)=split(/\./,$id);
12392: if ($bighash{'map_type_'.$mapid} ne 'page') {
12393: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
12394: $resid,$thisfn);
12395: if (ref($possibles) eq 'HASH') {
12396: $possibles->{$syval} = 1;
12397: }
12398: if ($checkforblock) {
12399: my @blockers = &has_comm_blocking('bre',$poss_syval,$file);
12400: unless (@blockers > 0) {
12401: $syval = $poss_syval;
12402: $realpossible++;
12403: }
12404: } else {
12405: $syval = $poss_syval;
12406: $realpossible++;
12407: }
12408: }
1.39 www 12409: }
1.191 harris41 12410: }
1.39 www 12411: if ($realpossible!=1) { $syval=''; }
1.249 www 12412: } else {
12413: $syval='';
1.37 www 12414: }
12415: }
1.1172.2.66 raeburn 12416: untie(%bighash);
1.481 raeburn 12417: }
1.31 www 12418: }
1.62 www 12419: if ($syval) {
1.620 albertel 12420: return $env{$cache_str}=$syval;
1.62 www 12421: }
1.31 www 12422: }
1.949 raeburn 12423: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 12424: return $env{$cache_str}='';
1.31 www 12425: }
12426:
12427: # ---------------------------------------------------------- Return random seed
12428:
1.32 www 12429: sub numval {
12430: my $txt=shift;
12431: $txt=~tr/A-J/0-9/;
12432: $txt=~tr/a-j/0-9/;
12433: $txt=~tr/K-T/0-9/;
12434: $txt=~tr/k-t/0-9/;
12435: $txt=~tr/U-Z/0-5/;
12436: $txt=~tr/u-z/0-5/;
12437: $txt=~s/\D//g;
1.564 albertel 12438: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 12439: return int($txt);
1.368 albertel 12440: }
12441:
1.484 albertel 12442: sub numval2 {
12443: my $txt=shift;
12444: $txt=~tr/A-J/0-9/;
12445: $txt=~tr/a-j/0-9/;
12446: $txt=~tr/K-T/0-9/;
12447: $txt=~tr/k-t/0-9/;
12448: $txt=~tr/U-Z/0-5/;
12449: $txt=~tr/u-z/0-5/;
12450: $txt=~s/\D//g;
12451: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
12452: my $total;
12453: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 12454: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 12455: return int($total);
12456: }
12457:
1.575 albertel 12458: sub numval3 {
12459: use integer;
12460: my $txt=shift;
12461: $txt=~tr/A-J/0-9/;
12462: $txt=~tr/a-j/0-9/;
12463: $txt=~tr/K-T/0-9/;
12464: $txt=~tr/k-t/0-9/;
12465: $txt=~tr/U-Z/0-5/;
12466: $txt=~tr/u-z/0-5/;
12467: $txt=~s/\D//g;
12468: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
12469: my $total;
12470: foreach my $val (@txts) { $total+=$val; }
12471: if ($_64bit) { $total=(($total<<32)>>32); }
12472: return $total;
12473: }
12474:
1.675 albertel 12475: sub digest {
12476: my ($data)=@_;
12477: my $digest=&Digest::MD5::md5($data);
12478: my ($a,$b,$c,$d)=unpack("iiii",$digest);
12479: my ($e,$f);
12480: {
12481: use integer;
12482: $e=($a+$b);
12483: $f=($c+$d);
12484: if ($_64bit) {
12485: $e=(($e<<32)>>32);
12486: $f=(($f<<32)>>32);
12487: }
12488: }
12489: if (wantarray) {
12490: return ($e,$f);
12491: } else {
12492: my $g;
12493: {
12494: use integer;
12495: $g=($e+$f);
12496: if ($_64bit) {
12497: $g=(($g<<32)>>32);
12498: }
12499: }
12500: return $g;
12501: }
12502: }
12503:
1.368 albertel 12504: sub latest_rnd_algorithm_id {
1.675 albertel 12505: return '64bit5';
1.366 albertel 12506: }
1.32 www 12507:
1.503 albertel 12508: sub get_rand_alg {
12509: my ($courseid)=@_;
1.790 albertel 12510: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 12511: if ($courseid) {
1.620 albertel 12512: return $env{"course.$courseid.rndseed"};
1.503 albertel 12513: }
12514: return &latest_rnd_algorithm_id();
12515: }
12516:
1.562 albertel 12517: sub validCODE {
12518: my ($CODE)=@_;
12519: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
12520: return 0;
12521: }
12522:
1.491 albertel 12523: sub getCODE {
1.620 albertel 12524: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 12525: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
12526: defined($Apache::lonhomework::parsing_a_task) ) &&
12527: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 12528: return $Apache::lonhomework::history{'resource.CODE'};
12529: }
12530: return undef;
12531: }
1.1133 foxr 12532: #
12533: # Determines the random seed for a specific context:
12534: #
12535: # parameters:
12536: # symb - in course context the symb for the seed.
12537: # course_id - The course id of the form domain_coursenum.
12538: # domain - Domain for the user.
12539: # course - Course for the user.
12540: # cenv - environment of the course.
12541: #
12542: # NOTE:
12543: # All parameters are picked out of the environment if missing
12544: # or not defined.
12545: # If a symb cannot be determined the current time is used instead.
12546: #
12547: # For a given well defined symb, courside, domain, username,
12548: # and course environment, the seed is reproducible.
12549: #
1.31 www 12550: sub rndseed {
1.1133 foxr 12551: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 12552: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 12553: if (!defined($symb)) {
1.366 albertel 12554: unless ($symb=$wsymb) { return time; }
12555: }
1.1146 foxr 12556: if (!defined $courseid) {
12557: $courseid=$wcourseid;
12558: }
12559: if (!defined $domain) { $domain=$wdomain; }
12560: if (!defined $username) { $username=$wusername }
1.1133 foxr 12561:
12562: my $which;
12563: if (defined($cenv->{'rndseed'})) {
12564: $which = $cenv->{'rndseed'};
12565: } else {
12566: $which =&get_rand_alg($courseid);
12567: }
1.491 albertel 12568: if (defined(&getCODE())) {
1.675 albertel 12569: if ($which eq '64bit5') {
12570: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
12571: } elsif ($which eq '64bit4') {
1.575 albertel 12572: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
12573: } else {
12574: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
12575: }
1.675 albertel 12576: } elsif ($which eq '64bit5') {
12577: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 12578: } elsif ($which eq '64bit4') {
12579: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 12580: } elsif ($which eq '64bit3') {
12581: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 12582: } elsif ($which eq '64bit2') {
12583: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 12584: } elsif ($which eq '64bit') {
12585: return &rndseed_64bit($symb,$courseid,$domain,$username);
12586: }
12587: return &rndseed_32bit($symb,$courseid,$domain,$username);
12588: }
12589:
12590: sub rndseed_32bit {
12591: my ($symb,$courseid,$domain,$username)=@_;
12592: {
12593: use integer;
12594: my $symbchck=unpack("%32C*",$symb) << 27;
12595: my $symbseed=numval($symb) << 22;
12596: my $namechck=unpack("%32C*",$username) << 17;
12597: my $nameseed=numval($username) << 12;
12598: my $domainseed=unpack("%32C*",$domain) << 7;
12599: my $courseseed=unpack("%32C*",$courseid);
12600: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 12601: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12602: #&logthis("rndseed :$num:$symb");
1.564 albertel 12603: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 12604: return $num;
12605: }
12606: }
12607:
12608: sub rndseed_64bit {
12609: my ($symb,$courseid,$domain,$username)=@_;
12610: {
12611: use integer;
12612: my $symbchck=unpack("%32S*",$symb) << 21;
12613: my $symbseed=numval($symb) << 10;
12614: my $namechck=unpack("%32S*",$username);
12615:
12616: my $nameseed=numval($username) << 21;
12617: my $domainseed=unpack("%32S*",$domain) << 10;
12618: my $courseseed=unpack("%32S*",$courseid);
12619:
12620: my $num1=$symbchck+$symbseed+$namechck;
12621: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12622: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12623: #&logthis("rndseed :$num:$symb");
1.564 albertel 12624: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 12625: return "$num1,$num2";
1.155 albertel 12626: }
1.366 albertel 12627: }
12628:
1.443 albertel 12629: sub rndseed_64bit2 {
12630: my ($symb,$courseid,$domain,$username)=@_;
12631: {
12632: use integer;
12633: # strings need to be an even # of cahracters long, it it is odd the
12634: # last characters gets thrown away
12635: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12636: my $symbseed=numval($symb) << 10;
12637: my $namechck=unpack("%32S*",$username.' ');
12638:
12639: my $nameseed=numval($username) << 21;
1.501 albertel 12640: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12641: my $courseseed=unpack("%32S*",$courseid.' ');
12642:
12643: my $num1=$symbchck+$symbseed+$namechck;
12644: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12645: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12646: #&logthis("rndseed :$num:$symb");
1.803 albertel 12647: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 12648: return "$num1,$num2";
12649: }
12650: }
12651:
12652: sub rndseed_64bit3 {
12653: my ($symb,$courseid,$domain,$username)=@_;
12654: {
12655: use integer;
12656: # strings need to be an even # of cahracters long, it it is odd the
12657: # last characters gets thrown away
12658: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12659: my $symbseed=numval2($symb) << 10;
12660: my $namechck=unpack("%32S*",$username.' ');
12661:
12662: my $nameseed=numval2($username) << 21;
1.443 albertel 12663: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12664: my $courseseed=unpack("%32S*",$courseid.' ');
12665:
12666: my $num1=$symbchck+$symbseed+$namechck;
12667: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12668: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12669: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 12670: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12671:
1.503 albertel 12672: return "$num1:$num2";
1.443 albertel 12673: }
12674: }
12675:
1.575 albertel 12676: sub rndseed_64bit4 {
12677: my ($symb,$courseid,$domain,$username)=@_;
12678: {
12679: use integer;
12680: # strings need to be an even # of cahracters long, it it is odd the
12681: # last characters gets thrown away
12682: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12683: my $symbseed=numval3($symb) << 10;
12684: my $namechck=unpack("%32S*",$username.' ');
12685:
12686: my $nameseed=numval3($username) << 21;
12687: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12688: my $courseseed=unpack("%32S*",$courseid.' ');
12689:
12690: my $num1=$symbchck+$symbseed+$namechck;
12691: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12692: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12693: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 12694: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12695:
1.575 albertel 12696: return "$num1:$num2";
12697: }
12698: }
12699:
1.675 albertel 12700: sub rndseed_64bit5 {
12701: my ($symb,$courseid,$domain,$username)=@_;
12702: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
12703: return "$num1:$num2";
12704: }
12705:
1.366 albertel 12706: sub rndseed_CODE_64bit {
12707: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 12708: {
1.366 albertel 12709: use integer;
1.443 albertel 12710: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 12711: my $symbseed=numval2($symb);
1.491 albertel 12712: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12713: my $CODEseed=numval(&getCODE());
1.443 albertel 12714: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 12715: my $num1=$symbseed+$CODEchck;
12716: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12717: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12718: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 12719: if ($_64bit) { $num1=(($num1<<32)>>32); }
12720: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 12721: return "$num1:$num2";
1.366 albertel 12722: }
12723: }
12724:
1.575 albertel 12725: sub rndseed_CODE_64bit4 {
12726: my ($symb,$courseid,$domain,$username)=@_;
12727: {
12728: use integer;
12729: my $symbchck=unpack("%32S*",$symb.' ') << 16;
12730: my $symbseed=numval3($symb);
12731: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12732: my $CODEseed=numval3(&getCODE());
12733: my $courseseed=unpack("%32S*",$courseid.' ');
12734: my $num1=$symbseed+$CODEchck;
12735: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12736: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12737: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 12738: if ($_64bit) { $num1=(($num1<<32)>>32); }
12739: if ($_64bit) { $num2=(($num2<<32)>>32); }
12740: return "$num1:$num2";
12741: }
12742: }
12743:
1.675 albertel 12744: sub rndseed_CODE_64bit5 {
12745: my ($symb,$courseid,$domain,$username)=@_;
12746: my $code = &getCODE();
12747: my ($num1,$num2)=&digest("$symb,$courseid,$code");
12748: return "$num1:$num2";
12749: }
12750:
1.366 albertel 12751: sub setup_random_from_rndseed {
12752: my ($rndseed)=@_;
1.503 albertel 12753: if ($rndseed =~/([,:])/) {
1.1172.2.51 raeburn 12754: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
12755: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
12756: &Math::Random::random_set_seed_from_phrase($rndseed);
12757: } else {
12758: &Math::Random::random_set_seed($num1,$num2);
12759: }
1.366 albertel 12760: } else {
12761: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 12762: }
1.36 albertel 12763: }
12764:
1.474 albertel 12765: sub latest_receipt_algorithm_id {
1.835 albertel 12766: return 'receipt3';
1.474 albertel 12767: }
12768:
1.480 www 12769: sub recunique {
12770: my $fucourseid=shift;
12771: my $unique;
1.835 albertel 12772: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
12773: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12774: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 12775: } else {
12776: $unique=$perlvar{'lonReceipt'};
12777: }
12778: return unpack("%32C*",$unique);
12779: }
12780:
12781: sub recprefix {
12782: my $fucourseid=shift;
12783: my $prefix;
1.835 albertel 12784: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
12785: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12786: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 12787: } else {
12788: $prefix=$perlvar{'lonHostID'};
12789: }
12790: return unpack("%32C*",$prefix);
12791: }
12792:
1.76 www 12793: sub ireceipt {
1.474 albertel 12794: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 12795:
12796: my $return =&recprefix($fucourseid).'-';
12797:
12798: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
12799: $env{'request.state'} eq 'construct') {
12800: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
12801: return $return;
12802: }
12803:
1.76 www 12804: my $cuname=unpack("%32C*",$funame);
12805: my $cudom=unpack("%32C*",$fudom);
12806: my $cucourseid=unpack("%32C*",$fucourseid);
12807: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 12808: my $cunique=&recunique($fucourseid);
1.474 albertel 12809: my $cpart=unpack("%32S*",$part);
1.835 albertel 12810: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
12811:
1.790 albertel 12812: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 12813:
12814: $return.= ($cunique%$cuname+
12815: $cunique%$cudom+
12816: $cusymb%$cuname+
12817: $cusymb%$cudom+
12818: $cucourseid%$cuname+
12819: $cucourseid%$cudom+
12820: $cpart%$cuname+
12821: $cpart%$cudom);
12822: } else {
12823: $return.= ($cunique%$cuname+
12824: $cunique%$cudom+
12825: $cusymb%$cuname+
12826: $cusymb%$cudom+
12827: $cucourseid%$cuname+
12828: $cucourseid%$cudom);
12829: }
12830: return $return;
1.76 www 12831: }
12832:
12833: sub receipt {
1.474 albertel 12834: my ($part)=@_;
1.790 albertel 12835: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 12836: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 12837: }
1.260 ng 12838:
1.790 albertel 12839: sub whichuser {
12840: my ($passedsymb)=@_;
12841: my ($symb,$courseid,$domain,$name,$publicuser);
12842: if (defined($env{'form.grade_symb'})) {
12843: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
12844: my $allowed=&allowed('vgr',$tmp_courseid);
12845: if (!$allowed &&
12846: exists($env{'request.course.sec'}) &&
12847: $env{'request.course.sec'} !~ /^\s*$/) {
12848: $allowed=&allowed('vgr',$tmp_courseid.
12849: '/'.$env{'request.course.sec'});
12850: }
12851: if ($allowed) {
12852: ($symb)=&get_env_multiple('form.grade_symb');
12853: $courseid=$tmp_courseid;
12854: ($domain)=&get_env_multiple('form.grade_domain');
12855: ($name)=&get_env_multiple('form.grade_username');
12856: return ($symb,$courseid,$domain,$name,$publicuser);
12857: }
12858: }
12859: if (!$passedsymb) {
12860: $symb=&symbread();
12861: } else {
12862: $symb=$passedsymb;
12863: }
12864: $courseid=$env{'request.course.id'};
12865: $domain=$env{'user.domain'};
12866: $name=$env{'user.name'};
12867: if ($name eq 'public' && $domain eq 'public') {
12868: if (!defined($env{'form.username'})) {
12869: $env{'form.username'}.=time.rand(10000000);
12870: }
12871: $name.=$env{'form.username'};
12872: }
12873: return ($symb,$courseid,$domain,$name,$publicuser);
12874:
12875: }
12876:
1.36 albertel 12877: # ------------------------------------------------------------ Serves up a file
1.472 albertel 12878: # returns either the contents of the file or
12879: # -1 if the file doesn't exist
1.481 raeburn 12880: #
12881: # if the target is a file that was uploaded via DOCS,
12882: # a check will be made to see if a current copy exists on the local server,
12883: # if it does this will be served, otherwise a copy will be retrieved from
12884: # the home server for the course and stored in /home/httpd/html/userfiles on
12885: # the local server.
1.472 albertel 12886:
1.36 albertel 12887: sub getfile {
1.538 albertel 12888: my ($file) = @_;
1.609 banghart 12889: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 12890: &repcopy($file);
12891: return &readfile($file);
12892: }
12893:
12894: sub repcopy_userfile {
12895: my ($file)=@_;
1.1142 raeburn 12896: my $londocroot = $perlvar{'lonDocRoot'};
12897: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 12898: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 12899: my ($cdom,$cnum,$filename) =
1.811 albertel 12900: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 12901: my $uri="/uploaded/$cdom/$cnum/$filename";
12902: if (-e "$file") {
1.828 www 12903: # we already have a local copy, check it out
1.538 albertel 12904: my @fileinfo = stat($file);
1.828 www 12905: my $rtncode;
12906: my $info;
1.538 albertel 12907: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 12908: if ($lwpresp ne 'ok') {
1.828 www 12909: # there is no such file anymore, even though we had a local copy
1.482 albertel 12910: if ($rtncode eq '404') {
1.538 albertel 12911: unlink($file);
1.482 albertel 12912: }
12913: return -1;
12914: }
12915: if ($info < $fileinfo[9]) {
1.828 www 12916: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 12917: return 'ok';
1.828 www 12918: } else {
12919: # the file is outdated, get rid of it
12920: unlink($file);
1.482 albertel 12921: }
1.828 www 12922: }
12923: # one way or the other, at this point, we don't have the file
12924: # construct the correct path for the file
12925: my @parts = ($cdom,$cnum);
12926: if ($filename =~ m|^(.+)/[^/]+$|) {
12927: push @parts, split(/\//,$1);
12928: }
12929: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
12930: foreach my $part (@parts) {
12931: $path .= '/'.$part;
12932: if (!-e $path) {
12933: mkdir($path,0770);
1.482 albertel 12934: }
12935: }
1.828 www 12936: # now the path exists for sure
12937: # get a user agent
12938: my $ua=new LWP::UserAgent;
12939: my $transferfile=$file.'.in.transfer';
12940: # FIXME: this should flock
12941: if (-e $transferfile) { return 'ok'; }
12942: my $request;
12943: $uri=~s/^\///;
1.980 raeburn 12944: my $homeserver = &homeserver($cnum,$cdom);
12945: my $protocol = $protocol{$homeserver};
12946: $protocol = 'http' if ($protocol ne 'https');
12947: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 12948: my $response=$ua->request($request,$transferfile);
12949: # did it work?
12950: if ($response->is_error()) {
12951: unlink($transferfile);
12952: &logthis("Userfile repcopy failed for $uri");
12953: return -1;
12954: }
12955: # worked, rename the transfer file
12956: rename($transferfile,$file);
1.607 raeburn 12957: return 'ok';
1.481 raeburn 12958: }
12959:
1.517 albertel 12960: sub tokenwrapper {
12961: my $uri=shift;
1.980 raeburn 12962: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 12963: $uri=~s|^/||;
1.620 albertel 12964: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 12965: my $token=$1;
1.552 albertel 12966: my (undef,$udom,$uname,$file)=split('/',$uri,4);
12967: if ($udom && $uname && $file) {
12968: $file=~s|(\?\.*)*$||;
1.949 raeburn 12969: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 12970: my $homeserver = &homeserver($uname,$udom);
12971: my $protocol = $protocol{$homeserver};
12972: $protocol = 'http' if ($protocol ne 'https');
12973: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 12974: (($uri=~/\?/)?'&':'?').'token='.$token.
12975: '&tokenissued='.$perlvar{'lonHostID'};
12976: } else {
12977: return '/adm/notfound.html';
12978: }
12979: }
12980:
1.828 www 12981: # call with reqtype HEAD: get last modification time
12982: # call with reqtype GET: get the file contents
12983: # Do not call this with reqtype GET for large files! It loads everything into memory
12984: #
1.481 raeburn 12985: sub getuploaded {
12986: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
12987: $uri=~s/^\///;
1.980 raeburn 12988: my $homeserver = &homeserver($cnum,$cdom);
12989: my $protocol = $protocol{$homeserver};
12990: $protocol = 'http' if ($protocol ne 'https');
12991: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 12992: my $ua=new LWP::UserAgent;
12993: my $request=new HTTP::Request($reqtype,$uri);
12994: my $response=$ua->request($request);
12995: $$rtncode = $response->code;
1.482 albertel 12996: if (! $response->is_success()) {
12997: return 'failed';
12998: }
12999: if ($reqtype eq 'HEAD') {
1.486 www 13000: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 13001: } elsif ($reqtype eq 'GET') {
13002: $$info = $response->content;
1.472 albertel 13003: }
1.482 albertel 13004: return 'ok';
1.36 albertel 13005: }
13006:
1.481 raeburn 13007: sub readfile {
13008: my $file = shift;
13009: if ( (! -e $file ) || ($file eq '') ) { return -1; };
13010: my $fh;
1.1172.2.96 raeburn 13011: open($fh,"<",$file);
1.481 raeburn 13012: my $a='';
1.800 albertel 13013: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 13014: return $a;
13015: }
13016:
1.36 albertel 13017: sub filelocation {
1.590 banghart 13018: my ($dir,$file) = @_;
13019: my $location;
13020: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 13021:
13022: if ($file =~ m-^/adm/-) {
13023: $file=~s-^/adm/wrapper/-/-;
13024: $file=~s-^/adm/coursedocs/showdoc/-/-;
13025: }
1.882 albertel 13026:
1.1139 www 13027: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 13028: $location = $file;
1.609 banghart 13029: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 13030: my ($udom,$uname,$filename)=
1.811 albertel 13031: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 13032: my $home=&homeserver($uname,$udom);
13033: my $is_me=0;
13034: my @ids=¤t_machine_ids();
13035: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
13036: if ($is_me) {
1.1117 foxr 13037: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 13038: } else {
13039: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
13040: $udom.'/'.$uname.'/'.$filename;
13041: }
1.882 albertel 13042: } elsif ($file =~ m-^/adm/-) {
13043: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 13044: } else {
13045: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 13046: $file=~s:^/(res|priv)/:/:;
13047: my $space=$1;
1.590 banghart 13048: if ( !( $file =~ m:^/:) ) {
13049: $location = $dir. '/'.$file;
13050: } else {
1.1142 raeburn 13051: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 13052: }
1.59 albertel 13053: }
1.590 banghart 13054: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 13055: while ($location=~m{/\.\./}) {
13056: if ($location =~ m{/[^/]+/\.\./}) {
13057: $location=~ s{/[^/]+/\.\./}{/}g;
13058: } else {
13059: $location=~ s{/\.\./}{/}g;
13060: }
13061: } #remove dir/..
1.590 banghart 13062: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
13063: return $location;
1.46 www 13064: }
1.36 albertel 13065:
1.46 www 13066: sub hreflocation {
13067: my ($dir,$file)=@_;
1.980 raeburn 13068: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 13069: $file=filelocation($dir,$file);
1.700 albertel 13070: } elsif ($file=~m-^/adm/-) {
13071: $file=~s-^/adm/wrapper/-/-;
13072: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 13073: }
13074: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
13075: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
13076: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 13077: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
13078: {/uploaded/$1/$2/}x;
1.46 www 13079: }
1.913 albertel 13080: if ($file=~ m{^/userfiles/}) {
13081: $file =~ s{^/userfiles/}{/uploaded/};
13082: }
1.462 albertel 13083: return $file;
1.465 albertel 13084: }
13085:
1.1139 www 13086:
13087:
13088:
13089:
1.465 albertel 13090: sub current_machine_domains {
1.853 albertel 13091: return &machine_domains(&hostname($perlvar{'lonHostID'}));
13092: }
13093:
13094: sub machine_domains {
13095: my ($hostname) = @_;
1.465 albertel 13096: my @domains;
1.838 albertel 13097: my %hostname = &all_hostnames();
1.465 albertel 13098: while( my($id, $name) = each(%hostname)) {
1.467 matthew 13099: # &logthis("-$id-$name-$hostname-");
1.465 albertel 13100: if ($hostname eq $name) {
1.844 albertel 13101: push(@domains,&host_domain($id));
1.465 albertel 13102: }
13103: }
13104: return @domains;
13105: }
13106:
13107: sub current_machine_ids {
1.853 albertel 13108: return &machine_ids(&hostname($perlvar{'lonHostID'}));
13109: }
13110:
13111: sub machine_ids {
13112: my ($hostname) = @_;
13113: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 13114: my @ids;
1.888 albertel 13115: my %name_to_host = &all_names();
1.889 albertel 13116: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
13117: return @{ $name_to_host{$hostname} };
13118: }
13119: return;
1.31 www 13120: }
13121:
1.824 raeburn 13122: sub additional_machine_domains {
13123: my @domains;
1.1172.2.96 raeburn 13124: open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab");
1.824 raeburn 13125: while( my $line = <$fh>) {
13126: $line =~ s/\s//g;
13127: push(@domains,$line);
13128: }
13129: return @domains;
13130: }
13131:
13132: sub default_login_domain {
13133: my $domain = $perlvar{'lonDefDomain'};
13134: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
13135: foreach my $posdom (¤t_machine_domains(),
13136: &additional_machine_domains()) {
13137: if (lc($posdom) eq lc($testdomain)) {
13138: $domain=$posdom;
13139: last;
13140: }
13141: }
13142: return $domain;
13143: }
13144:
1.1172.2.106 raeburn 13145: sub shared_institution {
13146: my ($dom) = @_;
13147: my $same_intdom;
13148: my $hostintdom = &internet_dom($perlvar{'lonHostID'});
13149: if ($hostintdom ne '') {
13150: my %iphost = &get_iphost();
13151: my $primary_id = &domain($dom,'primary');
13152: my $primary_ip = &get_host_ip($primary_id);
13153: if (ref($iphost{$primary_ip}) eq 'ARRAY') {
13154: foreach my $id (@{$iphost{$primary_ip}}) {
13155: my $intdom = &internet_dom($id);
13156: if ($intdom eq $hostintdom) {
13157: $same_intdom = 1;
13158: last;
13159: }
13160: }
13161: }
13162: }
13163: return $same_intdom;
13164: }
13165:
1.31 www 13166: # ------------------------------------------------------------- Declutters URLs
13167:
13168: sub declutter {
13169: my $thisfn=shift;
1.569 albertel 13170: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.1172.2.49 raeburn 13171: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
13172: $thisfn=~s{^/home/httpd/html}{};
13173: }
1.31 www 13174: $thisfn=~s/^\///;
1.697 albertel 13175: $thisfn=~s|^adm/wrapper/||;
13176: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 13177: $thisfn=~s/^res\///;
1.1172 bisitz 13178: $thisfn=~s/^priv\///;
1.1032 raeburn 13179: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
13180: $thisfn=~s/\?.+$//;
13181: }
1.268 www 13182: return $thisfn;
13183: }
13184:
13185: # ------------------------------------------------------------- Clutter up URLs
13186:
13187: sub clutter {
13188: my $thisfn='/'.&declutter(shift);
1.887 albertel 13189: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 13190: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 13191: $thisfn='/res'.$thisfn;
13192: }
1.1031 raeburn 13193: if ($thisfn !~m|^/adm|) {
13194: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 13195: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 13196: } else {
13197: my ($ext) = ($thisfn =~ /\.(\w+)$/);
13198: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 13199: if ($embstyle eq 'ssi'
13200: || ($embstyle eq 'hdn')
13201: || ($embstyle eq 'rat')
13202: || ($embstyle eq 'prv')
13203: || ($embstyle eq 'ign')) {
13204: #do nothing with these
13205: } elsif (($embstyle eq 'img')
1.695 albertel 13206: || ($embstyle eq 'emb')
13207: || ($embstyle eq 'wrp')) {
13208: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 13209: } elsif ($embstyle eq 'unk'
13210: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 13211: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 13212: } else {
1.718 www 13213: # &logthis("Got a blank emb style");
1.695 albertel 13214: }
1.694 albertel 13215: }
13216: }
1.31 www 13217: return $thisfn;
1.12 www 13218: }
13219:
1.787 albertel 13220: sub clutter_with_no_wrapper {
13221: my $uri = &clutter(shift);
13222: if ($uri =~ m-^/adm/-) {
13223: $uri =~ s-^/adm/wrapper/-/-;
13224: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
13225: }
13226: return $uri;
13227: }
13228:
1.557 albertel 13229: sub freeze_escape {
13230: my ($value)=@_;
13231: if (ref($value)) {
13232: $value=&nfreeze($value);
13233: return '__FROZEN__'.&escape($value);
13234: }
13235: return &escape($value);
13236: }
13237:
1.11 www 13238:
1.557 albertel 13239: sub thaw_unescape {
13240: my ($value)=@_;
13241: if ($value =~ /^__FROZEN__/) {
13242: substr($value,0,10,undef);
13243: $value=&unescape($value);
13244: return &thaw($value);
13245: }
13246: return &unescape($value);
13247: }
13248:
1.436 albertel 13249: sub correct_line_ends {
13250: my ($result)=@_;
13251: $$result =~s/\r\n/\n/mg;
13252: $$result =~s/\r/\n/mg;
1.415 albertel 13253: }
1.1 albertel 13254: # ================================================================ Main Program
13255:
1.184 www 13256: sub goodbye {
1.204 albertel 13257: &logthis("Starting Shut down");
1.443 albertel 13258: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 13259: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 13260: #converted
1.599 albertel 13261: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 13262: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
13263: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
13264: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 13265: #1.1 only
1.870 albertel 13266: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
13267: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
13268: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
13269: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
13270: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 13271: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
13272: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 13273: &flushcourselogs();
13274: &logthis("Shutting down");
13275: }
13276:
1.852 albertel 13277: sub get_dns {
1.1172.2.17 raeburn 13278: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 13279: if (!$ignore_cache) {
13280: my ($content,$cached)=
13281: &Apache::lonnet::is_cached_new('dns',$url);
13282: if ($cached) {
1.1172.2.17 raeburn 13283: &$func($content,$hashref);
1.869 albertel 13284: return;
13285: }
13286: }
13287:
13288: my %alldns;
1.1172.2.96 raeburn 13289: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {
13290: foreach my $dns (<$config>) {
13291: next if ($dns !~ /^\^(\S*)/x);
13292: my $line = $1;
13293: my ($host,$protocol) = split(/:/,$line);
13294: if ($protocol ne 'https') {
13295: $protocol = 'http';
13296: }
13297: $alldns{$host} = $protocol;
1.979 raeburn 13298: }
1.1172.2.96 raeburn 13299: close($config);
1.869 albertel 13300: }
13301: while (%alldns) {
1.1172.2.52 raeburn 13302: my ($dns) = sort { $b cmp $a } keys(%alldns);
1.852 albertel 13303: my $ua=new LWP::UserAgent;
1.1134 raeburn 13304: $ua->timeout(30);
1.979 raeburn 13305: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 13306: my $response=$ua->request($request);
1.979 raeburn 13307: delete($alldns{$dns});
1.852 albertel 13308: next if ($response->is_error());
13309: my @content = split("\n",$response->content);
1.1172.2.17 raeburn 13310: unless ($nocache) {
1.1172.2.23 raeburn 13311: &do_cache_new('dns',$url,\@content,30*24*60*60);
1.1172.2.17 raeburn 13312: }
13313: &$func(\@content,$hashref);
1.869 albertel 13314: return;
1.852 albertel 13315: }
1.871 albertel 13316: my $which = (split('/',$url))[3];
13317: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
1.1172.2.105 raeburn 13318: if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {
13319: my @content = <$config>;
13320: &$func(\@content,$hashref);
13321: }
1.1172.2.17 raeburn 13322: return;
13323: }
13324:
13325: # ------------------------------------------------------Get DNS checksums file
13326: sub parse_dns_checksums_tab {
13327: my ($lines,$hashref) = @_;
1.1172.2.53 raeburn 13328: my $lonhost = $perlvar{'lonHostID'};
13329: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
1.1172.2.17 raeburn 13330: my $loncaparev = &get_server_loncaparev($machine_dom);
1.1172.2.53 raeburn 13331: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
13332: my $webconfdir = '/etc/httpd/conf';
13333: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
13334: $webconfdir = '/etc/apache2';
13335: } elsif ($distro =~ /^sles(\d+)$/) {
13336: if ($1 >= 10) {
13337: $webconfdir = '/etc/apache2';
13338: }
13339: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
13340: if ($1 >= 10.0) {
13341: $webconfdir = '/etc/apache2';
13342: }
13343: }
1.1172.2.17 raeburn 13344: my ($release,$timestamp) = split(/\-/,$loncaparev);
13345: my (%chksum,%revnum);
13346: if (ref($lines) eq 'ARRAY') {
13347: chomp(@{$lines});
1.1172.2.34 raeburn 13348: my $version = shift(@{$lines});
13349: if ($version eq $release) {
1.1172.2.17 raeburn 13350: foreach my $line (@{$lines}) {
1.1172.2.34 raeburn 13351: my ($file,$version,$shasum) = split(/,/,$line);
1.1172.2.53 raeburn 13352: if ($file =~ m{^/etc/httpd/conf}) {
13353: if ($webconfdir eq '/etc/apache2') {
13354: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
13355: }
13356: }
1.1172.2.34 raeburn 13357: $chksum{$file} = $shasum;
13358: $revnum{$file} = $version;
1.1172.2.17 raeburn 13359: }
13360: if (ref($hashref) eq 'HASH') {
13361: %{$hashref} = (
13362: sums => \%chksum,
13363: versions => \%revnum,
13364: );
13365: }
13366: }
13367: }
1.869 albertel 13368: return;
1.852 albertel 13369: }
1.1172.2.17 raeburn 13370:
13371: sub fetch_dns_checksums {
13372: my %checksums;
1.1172.2.34 raeburn 13373: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
1.1172.2.48 raeburn 13374: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
1.1172.2.34 raeburn 13375: my ($release,$timestamp) = split(/\-/,$loncaparev);
13376: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
1.1172.2.17 raeburn 13377: \%checksums);
13378: return \%checksums;
13379: }
13380:
1.327 albertel 13381: # ------------------------------------------------------------ Read domain file
13382: {
1.852 albertel 13383: my $loaded;
1.846 albertel 13384: my %domain;
13385:
1.852 albertel 13386: sub parse_domain_tab {
13387: my ($lines) = @_;
13388: foreach my $line (@$lines) {
13389: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 13390:
1.846 albertel 13391: chomp($line);
1.852 albertel 13392: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 13393: my %this_domain;
13394: foreach my $field ('description', 'auth_def', 'auth_arg_def',
13395: 'lang_def', 'city', 'longi', 'lati',
13396: 'primary') {
13397: $this_domain{$field} = shift(@elements);
13398: }
13399: $domain{$name} = \%this_domain;
1.852 albertel 13400: }
13401: }
1.864 albertel 13402:
13403: sub reset_domain_info {
13404: undef($loaded);
13405: undef(%domain);
13406: }
13407:
1.852 albertel 13408: sub load_domain_tab {
1.1172.2.70 raeburn 13409: my ($ignore_cache,$nocache) = @_;
13410: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
1.852 albertel 13411: my $fh;
1.1172.2.96 raeburn 13412: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {
1.852 albertel 13413: my @lines = <$fh>;
13414: &parse_domain_tab(\@lines);
1.448 albertel 13415: }
1.852 albertel 13416: close($fh);
13417: $loaded = 1;
1.327 albertel 13418: }
1.846 albertel 13419:
13420: sub domain {
1.852 albertel 13421: &load_domain_tab() if (!$loaded);
13422:
1.846 albertel 13423: my ($name,$what) = @_;
13424: return if ( !exists($domain{$name}) );
13425:
13426: if (!$what) {
13427: return $domain{$name}{'description'};
13428: }
13429: return $domain{$name}{$what};
13430: }
1.974 raeburn 13431:
13432: sub domain_info {
13433: &load_domain_tab() if (!$loaded);
13434: return %domain;
13435: }
13436:
1.327 albertel 13437: }
13438:
13439:
1.1 albertel 13440: # ------------------------------------------------------------- Read hosts file
13441: {
1.838 albertel 13442: my %hostname;
1.844 albertel 13443: my %hostdom;
1.845 albertel 13444: my %libserv;
1.852 albertel 13445: my $loaded;
1.888 albertel 13446: my %name_to_host;
1.1074 raeburn 13447: my %internetdom;
1.1107 raeburn 13448: my %LC_dns_serv;
1.852 albertel 13449:
13450: sub parse_hosts_tab {
13451: my ($file) = @_;
13452: foreach my $configline (@$file) {
13453: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 13454: chomp($configline);
13455: if ($configline =~ /^\^/) {
13456: if ($configline =~ /^\^([\w.\-]+)/) {
13457: $LC_dns_serv{$1} = 1;
13458: }
13459: next;
13460: }
1.1074 raeburn 13461: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 13462: $name=~s/\s//g;
13463: if ($id && $domain && $role && $name) {
1.1172.2.96 raeburn 13464: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
13465: my $curr = $hostname{$id};
13466: my $skip;
13467: if (ref($name_to_host{$curr}) eq 'ARRAY') {
13468: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
13469: $skip = 1;
13470: } else {
13471: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
13472: }
13473: }
13474: unless ($skip) {
13475: push(@{$name_to_host{$name}},$id);
13476: }
13477: } else {
13478: push(@{$name_to_host{$name}},$id);
13479: }
1.852 albertel 13480: $hostname{$id}=$name;
13481: $hostdom{$id}=$domain;
13482: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 13483: if (defined($protocol)) {
13484: if ($protocol eq 'https') {
13485: $protocol{$id} = $protocol;
13486: } else {
13487: $protocol{$id} = 'http';
13488: }
1.968 raeburn 13489: } else {
1.969 raeburn 13490: $protocol{$id} = 'http';
1.968 raeburn 13491: }
1.1074 raeburn 13492: if (defined($intdom)) {
13493: $internetdom{$id} = $intdom;
13494: }
1.852 albertel 13495: }
13496: }
13497: }
1.864 albertel 13498:
13499: sub reset_hosts_info {
1.897 albertel 13500: &purge_remembered();
1.864 albertel 13501: &reset_domain_info();
13502: &reset_hosts_ip_info();
1.892 albertel 13503: undef(%name_to_host);
1.864 albertel 13504: undef(%hostname);
13505: undef(%hostdom);
13506: undef(%libserv);
13507: undef($loaded);
13508: }
1.1 albertel 13509:
1.852 albertel 13510: sub load_hosts_tab {
1.1172.2.70 raeburn 13511: my ($ignore_cache,$nocache) = @_;
13512: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
1.1172.2.96 raeburn 13513: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
1.852 albertel 13514: my @config = <$config>;
13515: &parse_hosts_tab(\@config);
13516: close($config);
13517: $loaded=1;
1.1 albertel 13518: }
1.852 albertel 13519:
1.838 albertel 13520: sub hostname {
1.852 albertel 13521: &load_hosts_tab() if (!$loaded);
13522:
1.838 albertel 13523: my ($lonid) = @_;
13524: return $hostname{$lonid};
13525: }
1.845 albertel 13526:
1.838 albertel 13527: sub all_hostnames {
1.852 albertel 13528: &load_hosts_tab() if (!$loaded);
13529:
1.838 albertel 13530: return %hostname;
13531: }
1.845 albertel 13532:
1.888 albertel 13533: sub all_names {
1.1172.2.70 raeburn 13534: my ($ignore_cache,$nocache) = @_;
13535: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded);
1.888 albertel 13536:
13537: return %name_to_host;
13538: }
13539:
1.974 raeburn 13540: sub all_host_domain {
13541: &load_hosts_tab() if (!$loaded);
13542: return %hostdom;
13543: }
13544:
1.845 albertel 13545: sub is_library {
1.852 albertel 13546: &load_hosts_tab() if (!$loaded);
13547:
1.845 albertel 13548: return exists($libserv{$_[0]});
13549: }
13550:
13551: sub all_library {
1.852 albertel 13552: &load_hosts_tab() if (!$loaded);
13553:
1.845 albertel 13554: return %libserv;
13555: }
13556:
1.1062 droeschl 13557: sub unique_library {
13558: #2x reverse removes all hostnames that appear more than once
13559: my %unique = reverse &all_library();
13560: return reverse %unique;
13561: }
13562:
1.841 albertel 13563: sub get_servers {
1.852 albertel 13564: &load_hosts_tab() if (!$loaded);
13565:
1.841 albertel 13566: my ($domain,$type) = @_;
13567: my %possible_hosts = ($type eq 'library') ? %libserv
13568: : %hostname;
13569: my %result;
1.842 albertel 13570: if (ref($domain) eq 'ARRAY') {
13571: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 13572: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 13573: $result{$host} = $hostname;
13574: }
13575: }
13576: } else {
13577: while ( my ($host,$hostname) = each(%possible_hosts)) {
13578: if ($hostdom{$host} eq $domain) {
13579: $result{$host} = $hostname;
13580: }
1.841 albertel 13581: }
13582: }
13583: return %result;
13584: }
1.845 albertel 13585:
1.1062 droeschl 13586: sub get_unique_servers {
13587: my %unique = reverse &get_servers(@_);
13588: return reverse %unique;
13589: }
13590:
1.844 albertel 13591: sub host_domain {
1.852 albertel 13592: &load_hosts_tab() if (!$loaded);
13593:
1.844 albertel 13594: my ($lonid) = @_;
13595: return $hostdom{$lonid};
13596: }
13597:
1.841 albertel 13598: sub all_domains {
1.852 albertel 13599: &load_hosts_tab() if (!$loaded);
13600:
1.841 albertel 13601: my %seen;
13602: my @uniq = grep(!$seen{$_}++, values(%hostdom));
13603: return @uniq;
13604: }
1.1074 raeburn 13605:
13606: sub internet_dom {
13607: &load_hosts_tab() if (!$loaded);
13608:
13609: my ($lonid) = @_;
13610: return $internetdom{$lonid};
13611: }
1.1107 raeburn 13612:
13613: sub is_LC_dns {
13614: &load_hosts_tab() if (!$loaded);
13615:
13616: my ($hostname) = @_;
13617: return exists($LC_dns_serv{$hostname});
13618: }
13619:
1.1 albertel 13620: }
13621:
1.847 albertel 13622: {
13623: my %iphost;
1.856 albertel 13624: my %name_to_ip;
13625: my %lonid_to_ip;
1.869 albertel 13626:
1.847 albertel 13627: sub get_hosts_from_ip {
13628: my ($ip) = @_;
13629: my %iphosts = &get_iphost();
13630: if (ref($iphosts{$ip})) {
13631: return @{$iphosts{$ip}};
13632: }
13633: return;
1.839 albertel 13634: }
1.864 albertel 13635:
13636: sub reset_hosts_ip_info {
13637: undef(%iphost);
13638: undef(%name_to_ip);
13639: undef(%lonid_to_ip);
13640: }
1.856 albertel 13641:
13642: sub get_host_ip {
13643: my ($lonid) = @_;
13644: if (exists($lonid_to_ip{$lonid})) {
13645: return $lonid_to_ip{$lonid};
13646: }
13647: my $name=&hostname($lonid);
13648: my $ip = gethostbyname($name);
13649: return if (!$ip || length($ip) ne 4);
13650: $ip=inet_ntoa($ip);
13651: $name_to_ip{$name} = $ip;
13652: $lonid_to_ip{$lonid} = $ip;
13653: return $ip;
13654: }
1.847 albertel 13655:
13656: sub get_iphost {
1.1172.2.70 raeburn 13657: my ($ignore_cache,$nocache) = @_;
1.894 albertel 13658:
1.869 albertel 13659: if (!$ignore_cache) {
13660: if (%iphost) {
13661: return %iphost;
13662: }
13663: my ($ip_info,$cached)=
13664: &Apache::lonnet::is_cached_new('iphost','iphost');
13665: if ($cached) {
13666: %iphost = %{$ip_info->[0]};
13667: %name_to_ip = %{$ip_info->[1]};
13668: %lonid_to_ip = %{$ip_info->[2]};
13669: return %iphost;
13670: }
13671: }
1.894 albertel 13672:
13673: # get yesterday's info for fallback
13674: my %old_name_to_ip;
13675: my ($ip_info,$cached)=
13676: &Apache::lonnet::is_cached_new('iphost','iphost');
13677: if ($cached) {
13678: %old_name_to_ip = %{$ip_info->[1]};
13679: }
13680:
1.1172.2.70 raeburn 13681: my %name_to_host = &all_names($ignore_cache,$nocache);
1.888 albertel 13682: foreach my $name (keys(%name_to_host)) {
1.847 albertel 13683: my $ip;
13684: if (!exists($name_to_ip{$name})) {
13685: $ip = gethostbyname($name);
13686: if (!$ip || length($ip) ne 4) {
1.894 albertel 13687: if (defined($old_name_to_ip{$name})) {
13688: $ip = $old_name_to_ip{$name};
13689: &logthis("Can't find $name defaulting to old $ip");
13690: } else {
13691: &logthis("Name $name no IP found");
13692: next;
13693: }
13694: } else {
13695: $ip=inet_ntoa($ip);
1.847 albertel 13696: }
13697: $name_to_ip{$name} = $ip;
13698: } else {
13699: $ip = $name_to_ip{$name};
1.653 albertel 13700: }
1.888 albertel 13701: foreach my $id (@{ $name_to_host{$name} }) {
13702: $lonid_to_ip{$id} = $ip;
13703: }
13704: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 13705: }
1.1172.2.70 raeburn 13706: unless ($nocache) {
13707: &do_cache_new('iphost','iphost',
13708: [\%iphost,\%name_to_ip,\%lonid_to_ip],
13709: 48*60*60);
13710: }
1.869 albertel 13711:
1.847 albertel 13712: return %iphost;
1.598 albertel 13713: }
13714:
1.992 raeburn 13715: #
13716: # Given a DNS returns the loncapa host name for that DNS
13717: #
13718: sub host_from_dns {
13719: my ($dns) = @_;
13720: my @hosts;
13721: my $ip;
13722:
1.993 raeburn 13723: if (exists($name_to_ip{$dns})) {
1.992 raeburn 13724: $ip = $name_to_ip{$dns};
13725: }
13726: if (!$ip) {
13727: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
13728: if (length($ip) == 4) {
13729: $ip = &IO::Socket::inet_ntoa($ip);
13730: }
13731: }
13732: if ($ip) {
13733: @hosts = get_hosts_from_ip($ip);
13734: return $hosts[0];
13735: }
13736: return undef;
1.986 foxr 13737: }
1.992 raeburn 13738:
1.1074 raeburn 13739: sub get_internet_names {
13740: my ($lonid) = @_;
13741: return if ($lonid eq '');
13742: my ($idnref,$cached)=
13743: &Apache::lonnet::is_cached_new('internetnames',$lonid);
13744: if ($cached) {
13745: return $idnref;
13746: }
13747: my $ip = &get_host_ip($lonid);
13748: my @hosts = &get_hosts_from_ip($ip);
13749: my %iphost = &get_iphost();
13750: my (@idns,%seen);
13751: foreach my $id (@hosts) {
13752: my $dom = &host_domain($id);
13753: my $prim_id = &domain($dom,'primary');
13754: my $prim_ip = &get_host_ip($prim_id);
13755: next if ($seen{$prim_ip});
13756: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
13757: foreach my $id (@{$iphost{$prim_ip}}) {
13758: my $intdom = &internet_dom($id);
13759: unless (grep(/^\Q$intdom\E$/,@idns)) {
13760: push(@idns,$intdom);
13761: }
13762: }
13763: }
13764: $seen{$prim_ip} = 1;
13765: }
1.1172.2.23 raeburn 13766: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
1.1074 raeburn 13767: }
13768:
1.986 foxr 13769: }
13770:
1.1079 raeburn 13771: sub all_loncaparevs {
1.1172.2.39 raeburn 13772: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
1.1079 raeburn 13773: }
13774:
1.1172.2.27 raeburn 13775: # ------------------------------------------------------- Read loncaparev table
13776: {
13777: sub load_loncaparevs {
13778: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
1.1172.2.96 raeburn 13779: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
1.1172.2.27 raeburn 13780: while (my $configline=<$config>) {
13781: chomp($configline);
13782: my ($hostid,$loncaparev)=split(/:/,$configline);
13783: $loncaparevs{$hostid}=$loncaparev;
13784: }
13785: close($config);
13786: }
13787: }
13788: }
13789: }
13790:
13791: # ----------------------------------------------------- Read serverhostID table
13792: {
13793: sub load_serverhomeIDs {
13794: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
1.1172.2.96 raeburn 13795: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1.1172.2.27 raeburn 13796: while (my $configline=<$config>) {
13797: chomp($configline);
13798: my ($name,$id)=split(/:/,$configline);
13799: $serverhomeIDs{$name}=$id;
13800: }
13801: close($config);
13802: }
13803: }
13804: }
13805: }
13806:
13807:
1.862 albertel 13808: BEGIN {
13809:
13810: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
13811: unless ($readit) {
13812: {
13813: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
13814: %perlvar = (%perlvar,%{$configvars});
13815: }
13816:
13817:
1.1 albertel 13818: # ------------------------------------------------------ Read spare server file
13819: {
1.1172.2.96 raeburn 13820: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 13821:
13822: while (my $configline=<$config>) {
13823: chomp($configline);
1.284 matthew 13824: if ($configline) {
1.784 albertel 13825: my ($host,$type) = split(':',$configline,2);
1.785 albertel 13826: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 13827: push(@{ $spareid{$type} }, $host);
1.1 albertel 13828: }
13829: }
1.448 albertel 13830: close($config);
1.1 albertel 13831: }
1.11 www 13832: # ------------------------------------------------------------ Read permissions
13833: {
1.1172.2.96 raeburn 13834: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");
1.11 www 13835:
13836: while (my $configline=<$config>) {
1.448 albertel 13837: chomp($configline);
13838: if ($configline) {
13839: my ($role,$perm)=split(/ /,$configline);
13840: if ($perm ne '') { $pr{$role}=$perm; }
13841: }
1.11 www 13842: }
1.448 albertel 13843: close($config);
1.11 www 13844: }
13845:
13846: # -------------------------------------------- Read plain texts for permissions
13847: {
1.1172.2.96 raeburn 13848: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 13849:
13850: while (my $configline=<$config>) {
1.448 albertel 13851: chomp($configline);
13852: if ($configline) {
1.742 raeburn 13853: my ($short,@plain)=split(/:/,$configline);
13854: %{$prp{$short}} = ();
13855: if (@plain > 0) {
13856: $prp{$short}{'std'} = $plain[0];
13857: for (my $i=1; $i<@plain; $i++) {
13858: $prp{$short}{'alt'.$i} = $plain[$i];
13859: }
13860: }
1.448 albertel 13861: }
1.135 www 13862: }
1.448 albertel 13863: close($config);
1.135 www 13864: }
13865:
13866: # ---------------------------------------------------------- Read package table
13867: {
1.1172.2.96 raeburn 13868: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");
1.135 www 13869:
13870: while (my $configline=<$config>) {
1.483 albertel 13871: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 13872: chomp($configline);
13873: my ($short,$plain)=split(/:/,$configline);
13874: my ($pack,$name)=split(/\&/,$short);
13875: if ($plain ne '') {
13876: $packagetab{$pack.'&'.$name.'&name'}=$name;
13877: $packagetab{$short}=$plain;
13878: }
1.11 www 13879: }
1.448 albertel 13880: close($config);
1.329 matthew 13881: }
13882:
1.1172.2.27 raeburn 13883: # --------------------------------------------------------- Read loncaparev table
1.1073 raeburn 13884:
1.1172.2.27 raeburn 13885: &load_loncaparevs();
13886:
13887: # ------------------------------------------------------- Read serverhostID table
13888:
13889: &load_serverhomeIDs();
1.1074 raeburn 13890:
1.1172.2.27 raeburn 13891: # ---------------------------------------------------------- Read releaseslist XML
1.1079 raeburn 13892: {
13893: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
13894: if (-e $file) {
13895: my $parser = HTML::LCParser->new($file);
13896: while (my $token = $parser->get_token()) {
13897: if ($token->[0] eq 'S') {
13898: my $item = $token->[1];
13899: my $name = $token->[2]{'name'};
13900: my $value = $token->[2]{'value'};
13901: if ($item ne '' && $name ne '' && $value ne '') {
13902: my $release = $parser->get_text();
13903: $release =~ s/(^\s*|\s*$ )//gx;
13904: $needsrelease{$item.':'.$name.':'.$value} = $release;
13905: }
13906: }
13907: }
13908: }
1.1073 raeburn 13909: }
13910:
1.1138 raeburn 13911: # ---------------------------------------------------------- Read managers table
13912: {
13913: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
1.1172.2.96 raeburn 13914: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {
1.1138 raeburn 13915: while (my $configline=<$config>) {
13916: chomp($configline);
13917: next if ($configline =~ /^\#/);
13918: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
13919: $managerstab{$configline} = 1;
13920: }
13921: }
13922: close($config);
13923: }
13924: }
13925: }
13926:
1.329 matthew 13927: # ------------- set up temporary directory
13928: {
1.1117 foxr 13929: $tmpdir = LONCAPA::tempdir();
1.329 matthew 13930:
1.11 www 13931: }
13932:
1.1172.2.104 raeburn 13933: # ------------- set default texengine (domain default overrides this)
13934: {
13935: $deftex = LONCAPA::texengine();
13936: }
13937:
1.1172.2.114! raeburn 13938: # ------------- set default minimum length for passwords for internal auth users
! 13939: {
! 13940: $passwdmin = LONCAPA::passwd_min();
! 13941: }
! 13942:
1.794 albertel 13943: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
13944: 'compress_threshold'=> 20_000,
13945: });
1.185 www 13946:
1.281 www 13947: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 13948: $dumpcount=0;
1.958 www 13949: $locknum=0;
1.22 www 13950:
1.163 harris41 13951: &logtouch();
1.672 albertel 13952: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 13953: $readit=1;
1.564 albertel 13954: {
13955: use integer;
13956: my $test=(2**32)+1;
1.568 albertel 13957: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 13958: &logthis(" Detected 64bit platform ($_64bit)");
13959: }
1.195 www 13960: }
1.1 albertel 13961: }
1.179 www 13962:
1.1 albertel 13963: 1;
1.191 harris41 13964: __END__
13965:
1.243 albertel 13966: =pod
13967:
1.191 harris41 13968: =head1 NAME
13969:
1.243 albertel 13970: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 13971:
13972: =head1 SYNOPSIS
13973:
1.243 albertel 13974: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 13975:
13976: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
13977:
1.243 albertel 13978: Common parameters:
13979:
13980: =over 4
13981:
13982: =item *
13983:
13984: $uname : an internal username (if $cname expecting a course Id specifically)
13985:
13986: =item *
13987:
13988: $udom : a domain (if $cdom expecting a course's domain specifically)
13989:
13990: =item *
13991:
13992: $symb : a resource instance identifier
13993:
13994: =item *
13995:
13996: $namespace : the name of a .db file that contains the data needed or
13997: being set.
13998:
13999: =back
14000:
1.394 bowersj2 14001: =head1 OVERVIEW
1.191 harris41 14002:
1.394 bowersj2 14003: lonnet provides subroutines which interact with the
14004: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
14005: about classes, users, and resources.
1.243 albertel 14006:
14007: For many of these objects you can also use this to store data about
14008: them or modify them in various ways.
1.191 harris41 14009:
1.394 bowersj2 14010: =head2 Symbs
1.191 harris41 14011:
1.394 bowersj2 14012: To identify a specific instance of a resource, LON-CAPA uses symbols
14013: or "symbs"X<symb>. These identifiers are built from the URL of the
14014: map, the resource number of the resource in the map, and the URL of
14015: the resource itself. The latter is somewhat redundant, but might help
14016: if maps change.
14017:
14018: An example is
14019:
14020: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
14021:
14022: The respective map entry is
14023:
14024: <resource id="19" src="/res/msu/korte/tests/part12.problem"
14025: title="Problem 2">
14026: </resource>
14027:
14028: Symbs are used by the random number generator, as well as to store and
14029: restore data specific to a certain instance of for example a problem.
14030:
14031: =head2 Storing And Retrieving Data
14032:
14033: X<store()>X<cstore()>X<restore()>Three of the most important functions
14034: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
14035: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
14036: is is the non-critical message twin of cstore. These functions are for
14037: handlers to store a perl hash to a user's permanent data space in an
14038: easy manner, and to retrieve it again on another call. It is expected
14039: that a handler would use this once at the beginning to retrieve data,
14040: and then again once at the end to send only the new data back.
14041:
14042: The data is stored in the user's data directory on the user's
14043: homeserver under the ID of the course.
14044:
14045: The hash that is returned by restore will have all of the previous
14046: value for all of the elements of the hash.
14047:
14048: Example:
14049:
14050: #creating a hash
14051: my %hash;
14052: $hash{'foo'}='bar';
14053:
14054: #storing it
14055: &Apache::lonnet::cstore(\%hash);
14056:
14057: #changing a value
14058: $hash{'foo'}='notbar';
14059:
14060: #adding a new value
14061: $hash{'bar'}='foo';
14062: &Apache::lonnet::cstore(\%hash);
14063:
14064: #retrieving the hash
14065: my %history=&Apache::lonnet::restore();
14066:
14067: #print the hash
14068: foreach my $key (sort(keys(%history))) {
14069: print("\%history{$key} = $history{$key}");
14070: }
14071:
14072: Will print out:
1.191 harris41 14073:
1.394 bowersj2 14074: %history{1:foo} = bar
14075: %history{1:keys} = foo:timestamp
14076: %history{1:timestamp} = 990455579
14077: %history{2:bar} = foo
14078: %history{2:foo} = notbar
14079: %history{2:keys} = foo:bar:timestamp
14080: %history{2:timestamp} = 990455580
14081: %history{bar} = foo
14082: %history{foo} = notbar
14083: %history{timestamp} = 990455580
14084: %history{version} = 2
14085:
14086: Note that the special hash entries C<keys>, C<version> and
14087: C<timestamp> were added to the hash. C<version> will be equal to the
14088: total number of versions of the data that have been stored. The
14089: C<timestamp> attribute will be the UNIX time the hash was
14090: stored. C<keys> is available in every historical section to list which
14091: keys were added or changed at a specific historical revision of a
14092: hash.
14093:
14094: B<Warning>: do not store the hash that restore returns directly. This
14095: will cause a mess since it will restore the historical keys as if the
14096: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 14097:
1.394 bowersj2 14098: Calling convention:
1.191 harris41 14099:
1.1172.2.27 raeburn 14100: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
1.1172.2.64 raeburn 14101: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
1.191 harris41 14102:
1.394 bowersj2 14103: For more detailed information, see lonnet specific documentation.
1.191 harris41 14104:
1.394 bowersj2 14105: =head1 RETURN MESSAGES
1.191 harris41 14106:
1.394 bowersj2 14107: =over 4
1.191 harris41 14108:
1.394 bowersj2 14109: =item * B<con_lost>: unable to contact remote host
1.191 harris41 14110:
1.394 bowersj2 14111: =item * B<con_delayed>: unable to contact remote host, message will be delivered
14112: when the connection is brought back up
1.191 harris41 14113:
1.394 bowersj2 14114: =item * B<con_failed>: unable to contact remote host and unable to save message
14115: for later delivery
1.191 harris41 14116:
1.967 bisitz 14117: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 14118:
1.394 bowersj2 14119: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 14120: that was requested
1.191 harris41 14121:
1.243 albertel 14122: =back
1.191 harris41 14123:
1.243 albertel 14124: =head1 PUBLIC SUBROUTINES
1.191 harris41 14125:
1.243 albertel 14126: =head2 Session Environment Functions
1.191 harris41 14127:
1.243 albertel 14128: =over 4
1.191 harris41 14129:
1.394 bowersj2 14130: =item *
14131: X<appenv()>
1.949 raeburn 14132: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 14133: the user envirnoment file, and will be restored for each access this
1.620 albertel 14134: user makes during this session, also modifies the %env for the current
1.949 raeburn 14135: process. Optional rolesarrayref - if defined contains a reference to an array
14136: of roles which are exempt from the restriction on modifying user.role entries
14137: in the user's environment.db and in %env.
1.191 harris41 14138:
14139: =item *
1.394 bowersj2 14140: X<delenv()>
1.987 raeburn 14141: B<delenv($delthis,$regexp)>: removes all items from the session
14142: environment file that begin with $delthis. If the
14143: optional second arg - $regexp - is true, $delthis is treated as a
14144: regular expression, otherwise \Q$delthis\E is used.
14145: The values are also deleted from the current processes %env.
1.191 harris41 14146:
1.795 albertel 14147: =item * get_env_multiple($name)
14148:
14149: gets $name from the %env hash, it seemlessly handles the cases where multiple
14150: values may be defined and end up as an array ref.
14151:
14152: returns an array of values
14153:
1.243 albertel 14154: =back
14155:
14156: =head2 User Information
1.191 harris41 14157:
1.243 albertel 14158: =over 4
1.191 harris41 14159:
14160: =item *
1.394 bowersj2 14161: X<queryauthenticate()>
14162: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 14163: authentication scheme
14164:
14165: =item *
1.394 bowersj2 14166: X<authenticate()>
1.1073 raeburn 14167: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 14168: authenticate user from domain's lib servers (first use the current
14169: one). C<$upass> should be the users password.
1.1073 raeburn 14170: $checkdefauth is optional (value is 1 if a check should be made to
14171: authenticate user using default authentication method, and allow
14172: account creation if username does not have account in the domain).
14173: $clientcancheckhost is optional (value is 1 if checking whether the
14174: server can host will occur on the client side in lonauth.pm).
1.191 harris41 14175:
14176: =item *
1.394 bowersj2 14177: X<homeserver()>
14178: B<homeserver($uname,$udom)>: find the server which has
14179: the user's directory and files (there must be only one), this caches
14180: the answer, and also caches if there is a borken connection.
1.191 harris41 14181:
14182: =item *
1.394 bowersj2 14183: X<idget()>
14184: B<idget($udom,@ids)>: find the usernames behind a list of IDs
14185: (IDs are a unique resource in a domain, there must be only 1 ID per
14186: username, and only 1 username per ID in a specific domain) (returns
14187: hash: id=>name,id=>name)
1.191 harris41 14188:
14189: =item *
1.394 bowersj2 14190: X<idrget()>
14191: B<idrget($udom,@unames)>: find the IDs behind a list of
14192: usernames (returns hash: name=>id,name=>id)
1.191 harris41 14193:
14194: =item *
1.394 bowersj2 14195: X<idput()>
14196: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 14197:
14198: =item *
1.394 bowersj2 14199: X<rolesinit()>
1.1169 droeschl 14200: B<rolesinit($udom,$username)>: get user privileges.
14201: returns user role, first access and timer interval hashes
1.243 albertel 14202:
14203: =item *
1.1171 droeschl 14204: X<privileged()>
14205: B<privileged($username,$domain)>: returns a true if user has a
14206: privileged and active role (i.e. su or dc), false otherwise.
14207:
14208: =item *
1.551 albertel 14209: X<getsection()>
14210: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 14211: course $cname, return section name/number or '' for "not in course"
14212: and '-1' for "no section"
14213:
14214: =item *
1.394 bowersj2 14215: X<userenvironment()>
14216: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 14217: passed in @what from the requested user's environment, returns a hash
14218:
1.858 raeburn 14219: =item *
14220: X<userlog_query()>
1.859 albertel 14221: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
14222: activity.log file. %filters defines filters applied when parsing the
14223: log file. These can be start or end timestamps, or the type of action
14224: - log to look for Login or Logout events, check for Checkin or
14225: Checkout, role for role selection. The response is in the form
14226: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
14227: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 14228:
1.243 albertel 14229: =back
14230:
14231: =head2 User Roles
14232:
14233: =over 4
14234:
14235: =item *
14236:
1.1172.2.65 raeburn 14237: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;
14238: returns codes for allowed actions.
14239:
14240: The first argument is required, all others are optional.
14241:
14242: $priv is the privilege being checked.
14243: $uri contains additional information about what is being checked for access (e.g.,
14244: URL, course ID etc.).
14245: $symb is the unique resource instance identifier in a course; if needed,
14246: but not provided, it will be retrieved via a call to &symbread().
14247: $role is the role for which a priv is being checked (only used if priv is evb).
14248: $clientip is the user's IP address (only used when checking for access to portfolio
14249: files).
14250: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
14251: prevents recursive calls to &allowed.
14252:
1.243 albertel 14253: F: full access
14254: U,I,K: authentication modes (cxx only)
14255: '': forbidden
14256: 1: user needs to choose course
14257: 2: browse allowed
1.766 albertel 14258: A: passphrase authentication needed
1.1172.2.65 raeburn 14259: B: access temporarily blocked because of a blocking event in a course.
1.243 albertel 14260:
14261: =item *
14262:
1.1172.2.13 raeburn 14263: constructaccess($url,$setpriv) : check for access to construction space URL
14264:
14265: See if the owner domain and name in the URL match those in the
14266: expected environment. If so, return three element list
14267: ($ownername,$ownerdomain,$ownerhome).
14268:
14269: Otherwise return the null string.
14270:
14271: If second argument 'setpriv' is true, it assigns the privileges,
14272: and returns the same three element list, unless the owner has
14273: blocked "ad hoc" Domain Coordinator access to the Author Space,
14274: in which case the null string is returned.
14275:
14276: =item *
14277:
1.1172.2.84 raeburn 14278: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;
14279: define a custom role rolename set privileges in format of lonTabs/roles.tab
14280: for system, domain, and course level. $uname and $udom are optional (current
14281: user's username and domain will be used when either of $uname or $udom are absent.
1.243 albertel 14282:
14283: =item *
14284:
1.988 raeburn 14285: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
14286: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 14287: $type is Course (default) or Community.
1.988 raeburn 14288: If $forcedefault evaluates to true, text returned will be default
14289: text for $type. Otherwise, if this is a course, the text returned
14290: will be a custom name for the role (if defined in the course's
14291: environment). If no custom name is defined the default is returned.
14292:
1.832 raeburn 14293: =item *
14294:
1.1172.2.23 raeburn 14295: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
1.858 raeburn 14296: All arguments are optional. Returns a hash of a roles, either for
14297: co-author/assistant author roles for a user's Construction Space
1.906 albertel 14298: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 14299: In the hash, keys are set to colon-separated $uname,$udom,$role, and
14300: (optionally) if $withsec is true, a fourth colon-separated item - $section.
14301: For each key, value is set to colon-separated start and end times for
14302: the role. If no username and domain are specified, will default to
1.934 raeburn 14303: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 14304: of role statuses (active, future or previous), roles
14305: (e.g., cc,in, st etc.) and domains of the roles which can be used
14306: to restrict the list of roles reported. If no array ref is
14307: provided for types, will default to return only active roles.
1.834 albertel 14308:
1.1172.2.13 raeburn 14309: =item *
14310:
14311: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
14312: user: $uname:$udom has a role in the course: $cdom_$cnum.
14313:
14314: Additional optional arguments are: $type (if role checking is to be restricted
14315: to certain user status types -- previous (expired roles), active (currently
14316: available roles) or future (roles available in the future), and
14317: $hideprivileged -- if true will not report course roles for users who
1.1172.2.23 raeburn 14318: have active Domain Coordinator role in course's domain or in additional
14319: domains (specified in 'Domains to check for privileged users' in course
14320: environment -- set via: Course Settings -> Classlists and staff listing).
14321:
14322: =item *
14323:
14324: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
14325: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
14326: $possdomains and $possroles are optional array refs -- to domains to check and
14327: roles to check. If $possdomains is not specified, a dump will be done of the
14328: users' roles.db to check for a dc or su role in any domain. This can be
14329: time consuming if &privileged is called repeatedly (e.g., when displaying a
14330: classlist), so in such cases, supplying a $possdomains array is preferred, as
14331: this then allows &privileged_by_domain() to be used, which caches the identity
14332: of privileged users, eliminating the need for repeated calls to &dump().
14333:
14334: =item *
14335:
14336: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
14337: where the outer hash keys are domains specified in the $possdomains array ref,
14338: next inner hash keys are privileged roles specified in the $roles array ref,
14339: and the innermost hash contains key = value pairs for username:domain = end:start
14340: for active or future "privileged" users with that role in that domain. To avoid
14341: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
14342: innerhash are cached using priv_$role and $dom as the identifiers.
1.1172.2.13 raeburn 14343:
1.243 albertel 14344: =back
14345:
14346: =head2 User Modification
14347:
14348: =over 4
14349:
14350: =item *
14351:
1.957 raeburn 14352: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 14353: user for the level given by URL. Optional start and end dates (leave empty
14354: string or zero for "no date")
1.191 harris41 14355:
14356: =item *
14357:
1.243 albertel 14358: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
14359: change a users, password, possible return values are: ok,
14360: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
14361: refused
1.191 harris41 14362:
14363: =item *
14364:
1.243 albertel 14365: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 14366:
14367: =item *
14368:
1.1058 raeburn 14369: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
14370: $forceid,$desiredhome,$email,$inststatus,$candelete) :
14371:
14372: will update user information (firstname,middlename,lastname,generation,
14373: permanentemail), and if forceid is true, student/employee ID also.
14374: A user's institutional affiliation(s) can also be updated.
14375: User information fields will not be overwritten with empty entries
14376: unless the field is included in the $candelete array reference.
14377: This array is included when a single user is modified via "Manage Users",
14378: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 14379:
14380: =item *
14381:
1.286 matthew 14382: modifystudent
14383:
1.957 raeburn 14384: modify a student's enrollment and identification information.
1.1172.2.31 raeburn 14385: The course id is resolved based on the current user's environment.
14386: This means the invoking user must be a course coordinator or otherwise
1.286 matthew 14387: associated with a course.
14388:
1.297 matthew 14389: This call is essentially a wrapper for lonnet::modifyuser and
14390: lonnet::modify_student_enrollment
1.286 matthew 14391:
14392: Inputs:
14393:
14394: =over 4
14395:
1.957 raeburn 14396: =item B<$udom> Student's loncapa domain
1.286 matthew 14397:
1.957 raeburn 14398: =item B<$uname> Student's loncapa login name
1.286 matthew 14399:
1.964 bisitz 14400: =item B<$uid> Student/Employee ID
1.286 matthew 14401:
1.957 raeburn 14402: =item B<$umode> Student's authentication mode
1.286 matthew 14403:
1.957 raeburn 14404: =item B<$upass> Student's password
1.286 matthew 14405:
1.957 raeburn 14406: =item B<$first> Student's first name
1.286 matthew 14407:
1.957 raeburn 14408: =item B<$middle> Student's middle name
1.286 matthew 14409:
1.957 raeburn 14410: =item B<$last> Student's last name
1.286 matthew 14411:
1.957 raeburn 14412: =item B<$gene> Student's generation
1.286 matthew 14413:
1.957 raeburn 14414: =item B<$usec> Student's section in course
1.286 matthew 14415:
14416: =item B<$end> Unix time of the roles expiration
14417:
14418: =item B<$start> Unix time of the roles start date
14419:
14420: =item B<$forceid> If defined, allow $uid to be changed
14421:
14422: =item B<$desiredhome> server to use as home server for student
14423:
1.957 raeburn 14424: =item B<$email> Student's permanent e-mail address
14425:
14426: =item B<$type> Type of enrollment (auto or manual)
14427:
1.963 raeburn 14428: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
14429:
14430: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 14431:
1.963 raeburn 14432: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 14433:
1.963 raeburn 14434: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 14435:
1.1172.2.19 raeburn 14436: =item B<$inststatus> institutional status of user - : separated string of escaped status types
14437:
14438: =item B<$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.
1.957 raeburn 14439:
1.286 matthew 14440: =back
1.297 matthew 14441:
14442: =item *
14443:
14444: modify_student_enrollment
14445:
1.1172.2.31 raeburn 14446: Change a student's enrollment status in a class. The environment variable
1.297 matthew 14447: 'role.request.course' must be defined for this function to proceed.
14448:
14449: Inputs:
14450:
14451: =over 4
14452:
1.1172.2.31 raeburn 14453: =item $udom, student's domain
1.297 matthew 14454:
1.1172.2.31 raeburn 14455: =item $uname, student's name
1.297 matthew 14456:
1.1172.2.31 raeburn 14457: =item $uid, student's user id
1.297 matthew 14458:
1.1172.2.31 raeburn 14459: =item $first, student's first name
1.297 matthew 14460:
14461: =item $middle
14462:
14463: =item $last
14464:
14465: =item $gene
14466:
14467: =item $usec
14468:
14469: =item $end
14470:
14471: =item $start
14472:
1.957 raeburn 14473: =item $type
14474:
14475: =item $locktype
14476:
14477: =item $cid
14478:
14479: =item $selfenroll
14480:
14481: =item $context
14482:
1.1172.2.19 raeburn 14483: =item $credits, number of credits student will earn from this class
14484:
1.1172.2.76 raeburn 14485: =item $instsec, institutional course section code for student
14486:
1.297 matthew 14487: =back
14488:
1.191 harris41 14489:
14490: =item *
14491:
1.243 albertel 14492: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
14493: custom role; give a custom role to a user for the level given by URL. Specify
14494: name and domain of role author, and role name
1.191 harris41 14495:
14496: =item *
14497:
1.243 albertel 14498: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 14499:
14500: =item *
14501:
1.243 albertel 14502: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
14503:
14504: =back
14505:
14506: =head2 Course Infomation
14507:
14508: =over 4
1.191 harris41 14509:
14510: =item *
14511:
1.1118 foxr 14512: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 14513: specified course id, including all environment settings for the
14514: course, the description of the course will be in the hash under the
14515: key 'description'
1.191 harris41 14516:
1.1118 foxr 14517: $options is an optional parameter that if supplied is a hash reference that controls
14518: what how this function works. It has the following key/values:
14519:
14520: =over 4
14521:
14522: =item freshen_cache
14523:
14524: If defined, and the environment cache for the course is valid, it is
14525: returned in the returned hash.
14526:
14527: =item one_time
14528:
14529: If defined, the last cache time is set to _now_
14530:
14531: =item user
14532:
14533: If defined, the supplied username is used instead of the current user.
14534:
14535:
14536: =back
14537:
1.191 harris41 14538: =item *
14539:
1.624 albertel 14540: resdata($name,$domain,$type,@which) : request for current parameter
14541: setting for a specific $type, where $type is either 'course' or 'user',
14542: @what should be a list of parameters to ask about. This routine caches
1.1172.2.31 raeburn 14543: answers for 10 minutes.
1.243 albertel 14544:
1.877 foxr 14545: =item *
14546:
14547: get_courseresdata($courseid, $domain) : dump the entire course resource
14548: data base, returning a hash that is keyed by the resource name and has
14549: values that are the resource value. I believe that the timestamps and
14550: versions are also returned.
14551:
1.1172.2.31 raeburn 14552: get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
14553: supplemental content area. This routine caches the number of files for
14554: 10 minutes.
14555:
1.243 albertel 14556: =back
14557:
14558: =head2 Course Modification
14559:
14560: =over 4
1.191 harris41 14561:
14562: =item *
14563:
1.243 albertel 14564: writecoursepref($courseid,%prefs) : write preferences (environment
14565: database) for a course
1.191 harris41 14566:
14567: =item *
14568:
1.1011 raeburn 14569: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
14570:
14571: =item *
14572:
1.1038 raeburn 14573: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 14574:
1.1167 droeschl 14575: =item *
14576:
14577: is_course($courseid), is_course($cdom, $cnum)
14578:
14579: Accepts either a combined $courseid (in the form of domain_courseid) or the
14580: two component version $cdom, $cnum. It checks if the specified course exists.
14581:
14582: Returns:
14583: undef if the course doesn't exist, otherwise
14584: in scalar context the combined courseid.
14585: in list context the two components of the course identifier, domain and
14586: courseid.
14587:
1.243 albertel 14588: =back
14589:
1.1172.2.109 raeburn 14590: =head2 Bubblesheet Configuration
14591:
14592: =over 4
14593:
14594: =item *
14595:
14596: get_scantron_config($which)
14597:
14598: $which - the name of the configuration to parse from the file.
14599:
14600: Parses and returns the bubblesheet configuration line selected as a
14601: hash of configuration file fields.
14602:
14603:
14604: Returns:
14605: If the named configuration is not in the file, an empty
14606: hash is returned.
14607:
14608: a hash with the fields
14609: name - internal name for the this configuration setup
14610: description - text to display to operator that describes this config
14611: CODElocation - if 0 or the string 'none'
14612: - no CODE exists for this config
14613: if -1 || the string 'letter'
14614: - a CODE exists for this config and is
14615: a string of letters
14616: Unsupported value (but planned for future support)
14617: if a positive integer
14618: - The CODE exists as the first n items from
14619: the question section of the form
14620: if the string 'number'
14621: - The CODE exists for this config and is
14622: a string of numbers
14623: CODEstart - (only matter if a CODE exists) column in the line where
14624: the CODE starts
14625: CODElength - length of the CODE
14626: IDstart - column where the student/employee ID starts
14627: IDlength - length of the student/employee ID info
14628: Qstart - column where the information from the bubbled
14629: 'questions' start
14630: Qlength - number of columns comprising a single bubble line from
14631: the sheet. (usually either 1 or 10)
14632: Qon - either a single character representing the character used
14633: to signal a bubble was chosen in the positional setup, or
14634: the string 'letter' if the letter of the chosen bubble is
14635: in the final, or 'number' if a number representing the
14636: chosen bubble is in the file (1->A 0->J)
14637: Qoff - the character used to represent that a bubble was
14638: left blank
14639: PaperID - if the scanning process generates a unique number for each
14640: sheet scanned the column that this ID number starts in
14641: PaperIDlength - number of columns that comprise the unique ID number
14642: for the sheet of paper
14643: FirstName - column that the first name starts in
14644: FirstNameLength - number of columns that the first name spans
14645: LastName - column that the last name starts in
14646: LastNameLength - number of columns that the last name spans
14647: BubblesPerRow - number of bubbles available in each row used to
14648: bubble an answer. (If not specified, 10 assumed).
14649:
14650:
14651: =item *
14652:
14653: get_scantronformat_file($cdom)
14654:
14655: $cdom - the course's domain (optional); if not supplied, uses
14656: domain for current $env{'request.course.id'}.
14657:
14658: Returns an array containing lines from the scantron format file for
14659: the domain of the course.
14660:
14661: If a url for a custom.tab file is listed in domain's configuration.db,
14662: lines are from this file.
14663:
14664: Otherwise, if a default.tab has been published in RES space by the
14665: domainconfig user, lines are from this file.
14666:
14667: Otherwise, fall back to getting lines from the legacy file on the
14668: local server: /home/httpd/lonTabs/default_scantronformat.tab
14669:
14670: =back
14671:
1.243 albertel 14672: =head2 Resource Subroutines
14673:
14674: =over 4
1.191 harris41 14675:
14676: =item *
14677:
1.243 albertel 14678: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 14679:
14680: =item *
14681:
1.243 albertel 14682: repcopy($filename) : subscribes to the requested file, and attempts to
14683: replicate from the owning library server, Might return
1.607 raeburn 14684: 'unavailable', 'not_found', 'forbidden', 'ok', or
14685: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 14686: resource. Expects the local filesystem pathname
14687: (/home/httpd/html/res/....)
14688:
14689: =back
14690:
14691: =head2 Resource Information
14692:
14693: =over 4
1.191 harris41 14694:
14695: =item *
14696:
1.1172.2.28 raeburn 14697: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
14698: and returns the value of a variety of different possible values,
14699: $varname should be a request string, and the other parameters can be
14700: used to specify who and what one is asking about. Ordinarily, $cid
14701: does not need to be specified, as it is retrived from
14702: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
14703: within lonuserstate::loadmap() when initializing a course, before
14704: $env{'request.course.id'} has been set, so it needs to be provided
14705: in that one case.
1.243 albertel 14706:
14707: Possible values for $varname are environment.lastname (or other item
14708: from the envirnment hash), user.name (or someother aspect about the
14709: user), resource.0.maxtries (or some other part and parameter of a
14710: resource)
1.204 albertel 14711:
14712: =item *
14713:
1.243 albertel 14714: directcondval($number) : get current value of a condition; reads from a state
14715: string
1.204 albertel 14716:
14717: =item *
14718:
1.243 albertel 14719: condval($condidx) : value of condition index based on state
1.204 albertel 14720:
14721: =item *
14722:
1.243 albertel 14723: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
14724: resource's metadata, $what should be either a specific key, or either
14725: 'keys' (to get a list of possible keys) or 'packages' to get a list of
14726: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
14727:
14728: this function automatically caches all requests
1.191 harris41 14729:
14730: =item *
14731:
1.243 albertel 14732: metadata_query($query,$custom,$customshow) : make a metadata query against the
14733: network of library servers; returns file handle of where SQL and regex results
14734: will be stored for query
1.191 harris41 14735:
14736: =item *
14737:
1.1172.2.66 raeburn 14738: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :
14739: return symbolic list entry (all arguments optional).
14740:
14741: Args: filename is the filename (including path) for the file for which a symb
14742: is required; donotrecurse, if true will prevent calls to allowed() being made
14743: to check access status if more than one resource was found in the bighash
14744: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
14745: a randompick); ignorecachednull, if true will prevent a symb of '' being
14746: returned if $env{$cache_str} is defined as ''; checkforblock if true will
14747: cause possible symbs to be checked to determine if they are subject to content
14748: blocking, if so they will not be included as possible symbs; possibles is a
14749: ref to a hash, which, as a side effect, will be populated with all possible
14750: symbs (content blocking not tested).
14751:
1.243 albertel 14752: returns the data handle
1.191 harris41 14753:
14754: =item *
14755:
1.1172.2.17 raeburn 14756: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
1.1172.2.11 raeburn 14757: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 14758: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1172.2.11 raeburn 14759: on failure, user must be in a course, as it assumes the existence of
14760: the course initial hash, and uses $env('request.course.id'}. The third
14761: arg is an optional reference to a scalar. If this arg is passed in the
14762: call to symbverify, it will be set to 1 if the symb has been set to be
14763: encrypted; otherwise it will be null.
1.243 albertel 14764:
1.191 harris41 14765: =item *
14766:
1.243 albertel 14767: symbclean($symb) : removes versions numbers from a symb, returns the
14768: cleaned symb
1.191 harris41 14769:
14770: =item *
14771:
1.243 albertel 14772: is_on_map($uri) : checks if the $uri is somewhere on the current
14773: course map, user must be in a course for it to work.
1.191 harris41 14774:
14775: =item *
14776:
1.243 albertel 14777: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 14778:
14779: =item *
14780:
1.243 albertel 14781: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
14782: a random seed, all arguments are optional, if they aren't sent it uses the
14783: environment to derive them. Note: if symb isn't sent and it can't get one
14784: from &symbread it will use the current time as its return value
1.191 harris41 14785:
14786: =item *
14787:
1.243 albertel 14788: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
14789: unfakeable, receipt
1.191 harris41 14790:
14791: =item *
14792:
1.620 albertel 14793: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 14794:
14795: =item *
14796:
1.243 albertel 14797: countacc($url) : count the number of accesses to a given URL
1.191 harris41 14798:
14799: =item *
14800:
1.243 albertel 14801: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 14802:
14803: =item *
14804:
1.243 albertel 14805: checkin($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 $tcrsid)
1.191 harris41 14806:
14807: =item *
14808:
1.243 albertel 14809: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 14810:
14811: =item *
14812:
1.243 albertel 14813: devalidate($symb) : devalidate temporary spreadsheet calculations,
14814: forcing spreadsheet to reevaluate the resource scores next time.
14815:
1.1172.2.13 raeburn 14816: =item *
14817:
14818: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
14819: when viewing in course context.
14820:
14821: input: six args -- filename (decluttered), course number, course domain,
14822: url, symb (if registered) and group (if this is a
14823: group item -- e.g., bulletin board, group page etc.).
14824:
14825: output: array of five scalars --
14826: $cfile -- url for file editing if editable on current server
14827: $home -- homeserver of resource (i.e., for author if published,
14828: or course if uploaded.).
14829: $switchserver -- 1 if server switch will be needed.
14830: $forceedit -- 1 if icon/link should be to go to edit mode
14831: $forceview -- 1 if icon/link should be to go to view mode
14832:
14833: =item *
14834:
14835: is_course_upload($file,$cnum,$cdom)
14836:
14837: Used in course context to determine if current file was uploaded to
14838: the course (i.e., would be found in /userfiles/docs on the course's
14839: homeserver.
14840:
14841: input: 3 args -- filename (decluttered), course number and course domain.
14842: output: boolean -- 1 if file was uploaded.
14843:
1.243 albertel 14844: =back
14845:
14846: =head2 Storing/Retreiving Data
14847:
14848: =over 4
1.191 harris41 14849:
14850: =item *
14851:
1.1172.2.64 raeburn 14852: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
14853: permanently for this url; hashref needs to be given and should be a \%hashname;
14854: the remaining args aren't required and if they aren't passed or are '' they will
14855: be derived from the env (with the exception of $laststore, which is an
14856: optional arg used when a user's submission is stored in grading).
14857: $laststore is $version=$timestamp, where $version is the most recent version
14858: number retrieved for the corresponding $symb in the $namespace db file, and
14859: $timestamp is the timestamp for that transaction (UNIX time).
14860: $laststore is currently only passed when cstore() is called by
14861: structuretags::finalize_storage().
1.191 harris41 14862:
14863: =item *
14864:
1.1172.2.64 raeburn 14865: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
14866: but uses critical subroutine
1.191 harris41 14867:
14868: =item *
14869:
1.243 albertel 14870: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
14871: all args are optional
1.191 harris41 14872:
14873: =item *
14874:
1.717 albertel 14875: dumpstore($namespace,$udom,$uname,$regexp,$range) :
14876: dumps the complete (or key matching regexp) namespace into a hash
14877: ($udom, $uname, $regexp, $range are optional) for a namespace that is
14878: normally &store()ed into
14879:
14880: $range should be either an integer '100' (give me the first 100
14881: matching records)
14882: or be two integers sperated by a - with no spaces
14883: '30-50' (give me the 30th through the 50th matching
14884: records)
14885:
14886:
14887: =item *
14888:
1.1172.2.59 raeburn 14889: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
1.717 albertel 14890: replaces a &store() version of data with a replacement set of data
14891: for a particular resource in a namespace passed in the $storehash hash
1.1172.2.59 raeburn 14892: reference. If $tolog is true, the transaction is logged in the courselog
14893: with an action=PUTSTORE.
1.717 albertel 14894:
14895: =item *
14896:
1.243 albertel 14897: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
14898: works very similar to store/cstore, but all data is stored in a
14899: temporary location and can be reset using tmpreset, $storehash should
14900: be a hash reference, returns nothing on success
1.191 harris41 14901:
14902: =item *
14903:
1.243 albertel 14904: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
14905: similar to restore, but all data is stored in a temporary location and
14906: can be reset using tmpreset. Returns a hash of values on success,
14907: error string otherwise.
1.191 harris41 14908:
14909: =item *
14910:
1.243 albertel 14911: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
14912: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 14913:
14914: =item *
14915:
1.243 albertel 14916: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
14917: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 14918:
14919: =item *
14920:
1.243 albertel 14921: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
14922: namesp ($udom and $uname are optional)
1.191 harris41 14923:
14924: =item *
14925:
1.702 albertel 14926: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 14927: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 14928: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 14929:
1.702 albertel 14930: $range should be either an integer '100' (give me the first 100
14931: matching records)
14932: or be two integers sperated by a - with no spaces
14933: '30-50' (give me the 30th through the 50th matching
14934: records)
1.449 matthew 14935: =item *
14936:
14937: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
14938: $store can be a scalar, an array reference, or if the amount to be
14939: incremented is > 1, a hash reference.
14940:
14941: ($udom and $uname are optional)
1.191 harris41 14942:
14943: =item *
14944:
1.243 albertel 14945: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
14946: ($udom and $uname are optional)
1.191 harris41 14947:
14948: =item *
14949:
1.243 albertel 14950: cput($namespace,$storehash,$udom,$uname) : critical put
14951: ($udom and $uname are optional)
1.191 harris41 14952:
14953: =item *
14954:
1.748 albertel 14955: newput($namespace,$storehash,$udom,$uname) :
14956:
14957: Attempts to store the items in the $storehash, but only if they don't
14958: currently exist, if this succeeds you can be certain that you have
14959: successfully created a new key value pair in the $namespace db.
14960:
14961:
14962: Args:
14963: $namespace: name of database to store values to
14964: $storehash: hashref to store to the db
14965: $udom: (optional) domain of user containing the db
14966: $uname: (optional) name of user caontaining the db
14967:
14968: Returns:
14969: 'ok' -> succeeded in storing all keys of $storehash
14970: 'key_exists: <key>' -> failed to anything out of $storehash, as at
14971: least <key> already existed in the db (other
14972: requested keys may also already exist)
1.967 bisitz 14973: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 14974: 'con_lost' -> unable to contact request server
14975: 'refused' -> action was not allowed by remote machine
14976:
14977:
14978: =item *
14979:
1.243 albertel 14980: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
14981: reference filled in from namesp (encrypts the return communication)
14982: ($udom and $uname are optional)
1.191 harris41 14983:
14984: =item *
14985:
1.243 albertel 14986: log($udom,$name,$home,$message) : write to permanent log for user; use
14987: critical subroutine
14988:
1.806 raeburn 14989: =item *
14990:
1.860 raeburn 14991: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
14992: array reference filled in from namespace found in domain level on either
14993: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 14994:
14995: =item *
14996:
1.860 raeburn 14997: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
14998: domain level either on specified domain server ($uhome) or primary domain
14999: server ($udom and $uhome are optional)
1.806 raeburn 15000:
1.943 raeburn 15001: =item *
15002:
1.1172.2.35 raeburn 15003: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
15004: for: authentication, language, quotas, timezone, date locale, and portal URL in
15005: the target domain.
15006:
15007: May also include additional key => value pairs for the following groups:
15008:
15009: =over
15010:
15011: =item
15012: disk quotas (MB allocated by default to portfolios and authoring spaces).
15013:
15014: =over
15015:
15016: =item defaultquota, authorquota
15017:
15018: =back
15019:
15020: =item
15021: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
15022: portfolio for users).
15023:
15024: =over
15025:
15026: =item
15027: aboutme, blog, webdav, portfolio
15028:
15029: =back
15030:
15031: =item
15032: requestcourses: ability to request courses, and how requests are processed.
15033:
15034: =over
15035:
15036: =item
1.1172.2.37 raeburn 15037: official, unofficial, community, textbook
1.1172.2.35 raeburn 15038:
15039: =back
15040:
15041: =item
15042: inststatus: types of institutional affiliation, and order in which they are displayed.
15043:
15044: =over
15045:
15046: =item
1.1172.2.44 raeburn 15047: inststatustypes, inststatusorder, inststatusguest
1.1172.2.35 raeburn 15048:
15049: =back
15050:
15051: =item
15052: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
15053: for course's uploaded content.
15054:
15055: =over
15056:
15057: =item
1.1172.2.68 raeburn 15058: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
15059: communityquota, textbookquota
1.1172.2.35 raeburn 15060:
15061: =back
15062:
15063: =item
15064: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
15065: on your servers.
15066:
15067: =over
15068:
15069: =item
15070: remotesessions, hostedsessions
15071:
15072: =back
15073:
15074: =back
15075:
15076: In cases where a domain coordinator has never used the "Set Domain Configuration"
15077: utility to create a configuration.db file on a domain's primary library server
15078: only the following domain defaults: auth_def, auth_arg_def, lang_def
15079: -- corresponding values are authentication type (internal, krb4, krb5,
15080: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
15081: will be available. Values are retrieved from cache (if current), unless the
15082: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
15083: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
15084:
15085: Typical usage:
1.943 raeburn 15086:
1.1172.2.35 raeburn 15087: %domdefaults = &get_domain_defaults($target_domain);
1.943 raeburn 15088:
1.243 albertel 15089: =back
15090:
15091: =head2 Network Status Functions
15092:
15093: =over 4
1.191 harris41 15094:
15095: =item *
15096:
1.1137 raeburn 15097: dirlist() : return directory list based on URI (first arg).
15098:
15099: Inputs: 1 required, 5 optional.
15100:
15101: =over
15102:
15103: =item
15104: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
15105:
15106: =item
15107: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
15108:
15109: =item
15110: $username - username of user/course to be listed. Extracted from $uri if absent.
15111:
15112: =item
15113: $getpropath - boolean: 1 if prepend path using &propath().
15114:
15115: =item
15116: $getuserdir - boolean: 1 if prepend path for "userfiles".
15117:
15118: =item
15119: $alternateRoot - path to prepend in place of path from $uri.
15120:
15121: =back
15122:
15123: Returns: Array of up to two items.
15124:
15125: =over
15126:
15127: a reference to an array of files/subdirectories
15128:
15129: =over
15130:
15131: Each element in the array of files/subdirectories is a & separated list of
15132: item name and the result of running stat on the item. If dirlist was requested
15133: for a file instead of a directory, the item name will be ''. For a directory
15134: listing, if the item is a metadata file, the element will end &N&M
15135: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
15136: default copyright set (1).
15137:
15138: =back
15139:
15140: a scalar containing error condition (if encountered).
15141:
15142: =over
15143:
15144: =item
15145: no_host (no homeserver identified for $username:$domain).
15146:
15147: =item
15148: no_such_host (server contacted for listing not identified as valid host).
15149:
15150: =item
15151: con_lost (connection to remote server failed).
15152:
15153: =item
15154: refused (invalid $username:$domain received on lond side).
15155:
15156: =item
15157: no_such_dir (directory at specified path on lond side does not exist).
15158:
15159: =item
15160: empty (directory at specified path on lond side is empty).
15161:
15162: =over
15163:
15164: This is currently not encountered because the &ls3, &ls2,
15165: &ls (_handler) routines on the lond side do not filter out
15166: . and .. from a directory listing.
15167:
15168: =back
15169:
15170: =back
15171:
15172: =back
1.191 harris41 15173:
15174: =item *
15175:
1.243 albertel 15176: spareserver() : find server with least workload from spare.tab
15177:
1.986 foxr 15178:
15179: =item *
15180:
15181: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
15182: if there is no corresponding loncapa host.
15183:
1.243 albertel 15184: =back
15185:
1.986 foxr 15186:
1.243 albertel 15187: =head2 Apache Request
15188:
15189: =over 4
1.191 harris41 15190:
15191: =item *
15192:
1.243 albertel 15193: ssi($url,%hash) : server side include, does a complete request cycle on url to
15194: localhost, posts hash
15195:
15196: =back
15197:
15198: =head2 Data to String to Data
15199:
15200: =over 4
1.191 harris41 15201:
15202: =item *
15203:
1.243 albertel 15204: hash2str(%hash) : convert a hash into a string complete with escaping and '='
15205: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 15206:
15207: =item *
15208:
1.243 albertel 15209: hashref2str($hashref) : convert a hashref into a string complete with
15210: escaping and '=' and '&' separators, supports elements that are
15211: arrayrefs and hashrefs
1.191 harris41 15212:
15213: =item *
15214:
1.243 albertel 15215: arrayref2str($arrayref) : convert an arrayref into a string complete
15216: with escaping and '&' separators, supports elements that are arrayrefs
15217: and hashrefs
1.191 harris41 15218:
15219: =item *
15220:
1.243 albertel 15221: str2hash($string) : convert string to hash using unescaping and
15222: splitting on '=' and '&', supports elements that are arrayrefs and
15223: hashrefs
1.191 harris41 15224:
15225: =item *
15226:
1.243 albertel 15227: str2array($string) : convert string to hash using unescaping and
15228: splitting on '&', supports elements that are arrayrefs and hashrefs
15229:
15230: =back
15231:
15232: =head2 Logging Routines
15233:
15234:
15235: These routines allow one to make log messages in the lonnet.log and
15236: lonnet.perm logfiles.
1.191 harris41 15237:
1.1119 foxr 15238: =over 4
15239:
1.191 harris41 15240: =item *
15241:
1.243 albertel 15242: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 15243:
15244: =item *
15245:
1.243 albertel 15246: logthis() : append message to the normal lonnet.log file, it gets
15247: preiodically rolled over and deleted.
1.191 harris41 15248:
15249: =item *
15250:
1.243 albertel 15251: logperm() : append a permanent message to lonnet.perm.log, this log
15252: file never gets deleted by any automated portion of the system, only
15253: messages of critical importance should go in here.
15254:
1.1119 foxr 15255:
1.243 albertel 15256: =back
15257:
15258: =head2 General File Helper Routines
15259:
15260: =over 4
1.191 harris41 15261:
15262: =item *
15263:
1.481 raeburn 15264: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
15265: (a) files in /uploaded
15266: (i) If a local copy of the file exists -
15267: compares modification date of local copy with last-modified date for
15268: definitive version stored on home server for course. If local copy is
15269: stale, requests a new version from the home server and stores it.
15270: If the original has been removed from the home server, then local copy
15271: is unlinked.
15272: (ii) If local copy does not exist -
15273: requests the file from the home server and stores it.
15274:
15275: If $caller is 'uploadrep':
15276: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
15277: for request for files originally uploaded via DOCS.
15278: - returns 'ok' if fresh local copy now available, -1 otherwise.
15279:
15280: Otherwise:
15281: This indicates a call from the content generation phase of the request.
15282: - returns the entire contents of the file or -1.
15283:
15284: (b) files in /res
15285: - returns the entire contents of a file or -1;
15286: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 15287:
1.712 albertel 15288:
15289: =item *
15290:
15291: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
15292: reference
15293:
15294: returns either a stat() list of data about the file or an empty list
15295: if the file doesn't exist or couldn't find out about it (connection
15296: problems or user unknown)
15297:
1.191 harris41 15298: =item *
15299:
1.243 albertel 15300: filelocation($dir,$file) : returns file system location of a file
15301: based on URI; meant to be "fairly clean" absolute reference, $dir is a
15302: directory that relative $file lookups are to looked in ($dir of /a/dir
15303: and a file of ../bob will become /a/bob)
1.191 harris41 15304:
15305: =item *
15306:
15307: hreflocation($dir,$file) : returns file system location or a URL; same as
15308: filelocation except for hrefs
15309:
15310: =item *
15311:
1.1172.2.49 raeburn 15312: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
15313: also removes beginning /home/httpd/html unless /priv/ follows it.
1.191 harris41 15314:
1.243 albertel 15315: =back
15316:
1.608 albertel 15317: =head2 Usererfile file routines (/uploaded*)
15318:
15319: =over 4
15320:
15321: =item *
15322:
15323: userfileupload(): main rotine for putting a file in a user or course's
15324: filespace, arguments are,
15325:
1.620 albertel 15326: formname - required - this is the name of the element in $env where the
1.608 albertel 15327: filename, and the contents of the file to create/modifed exist
1.620 albertel 15328: the filename is in $env{'form.'.$formname.'.filename'} and the
15329: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 15330: context - if coursedoc, store the file in the course of the active role
15331: of the current user;
15332: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
15333: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 15334: subdir - required - subdirectory to put the file in under ../userfiles/
15335: if undefined, it will be placed in "unknown"
15336:
15337: (This routine calls clean_filename() to remove any dangerous
15338: characters from the filename, and then calls finuserfileupload() to
15339: complete the transaction)
15340:
15341: returns either the url of the uploaded file (/uploaded/....) if successful
15342: and /adm/notfound.html if unsuccessful
15343:
15344: =item *
15345:
15346: clean_filename(): routine for cleaing a filename up for storage in
15347: userfile space, argument is:
15348:
15349: filename - proposed filename
15350:
15351: returns: the new clean filename
15352:
15353: =item *
15354:
1.1090 raeburn 15355: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 15356: userspace, probably shouldn't be called directly
15357:
15358: docuname: username or courseid of destination for the file
15359: docudom: domain of user/course of destination for the file
15360: formname: same as for userfileupload()
1.1090 raeburn 15361: fname: filename (including subdirectories) for the file
15362: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
1.1172.2.109 raeburn 15363: if hashref, and context is scantron, will convert csv format to standard format
1.1090 raeburn 15364: allfiles: reference to hash used to store objects found by parser
15365: codebase: reference to hash used for codebases of java objects found by parser
15366: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
15367: thumbheight: height (pixels) of thumbnail to be created for uploaded image
15368: resizewidth: width to be used to resize image using resizeImage from ImageMagick
15369: resizeheight: height to be used to resize image using resizeImage from ImageMagick
15370: context: if 'overwrite', will move the uploaded file from its temporary location to
15371: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 15372: mimetype: reference to scalar to accommodate mime type determined
15373: from File::MMagic if $parser = parse.
1.608 albertel 15374:
15375: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 15376: and /adm/notfound.html if unsuccessful (or an error message if context
15377: was 'overwrite').
15378:
1.608 albertel 15379:
15380: =item *
15381:
15382: renameuserfile(): renames an existing userfile to a new name
15383:
15384: Args:
15385: docuname: username or courseid of destination for the file
15386: docudom: domain of user/course of destination for the file
15387: old: current file name (including any subdirs under userfiles)
15388: new: desired file name (including any subdirs under userfiles)
15389:
15390: =item *
15391:
15392: mkdiruserfile(): creates a directory is a userfiles dir
15393:
15394: Args:
15395: docuname: username or courseid of destination for the file
15396: docudom: domain of user/course of destination for the file
15397: dir: dir to create (including any subdirs under userfiles)
15398:
15399: =item *
15400:
15401: removeuserfile(): removes a file that exists in userfiles
15402:
15403: Args:
15404: docuname: username or courseid of destination for the file
15405: docudom: domain of user/course of destination for the file
15406: fname: filname to delete (including any subdirs under userfiles)
15407:
15408: =item *
15409:
15410: removeuploadedurl(): convience function for removeuserfile()
15411:
15412: Args:
15413: url: a full /uploaded/... url to delete
15414:
1.747 albertel 15415: =item *
15416:
15417: get_portfile_permissions():
15418: Args:
15419: domain: domain of user or course contain the portfolio files
15420: user: name of user or num of course contain the portfolio files
15421: Returns:
15422: hashref of a dump of the proper file_permissions.db
15423:
15424:
15425: =item *
15426:
15427: get_access_controls():
15428:
15429: Args:
15430: current_permissions: the hash ref returned from get_portfile_permissions()
15431: group: (optional) the group you want the files associated with
15432: file: (optional) the file you want access info on
15433:
15434: Returns:
1.749 raeburn 15435: a hash (keys are file names) of hashes containing
15436: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
15437: values are XML containing access control settings (see below)
1.747 albertel 15438:
15439: Internal notes:
15440:
1.749 raeburn 15441: access controls are stored in file_permissions.db as key=value pairs.
15442: key -> path to file/file_name\0uniqueID:scope_end_start
15443: where scope -> public,guest,course,group,domains or users.
15444: end -> UNIX time for end of access (0 -> no end date)
15445: start -> UNIX time for start of access
15446:
15447: value -> XML description of access control
15448: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
15449: <start></start>
15450: <end></end>
15451:
15452: <password></password> for scope type = guest
15453:
15454: <domain></domain> for scope type = course or group
15455: <number></number>
15456: <roles id="">
15457: <role></role>
15458: <access></access>
15459: <section></section>
15460: <group></group>
15461: </roles>
15462:
15463: <dom></dom> for scope type = domains
15464:
15465: <users> for scope type = users
15466: <user>
15467: <uname></uname>
15468: <udom></udom>
15469: </user>
15470: </users>
15471: </scope>
15472:
15473: Access data is also aggregated for each file in an additional key=value pair:
15474: key -> path to file/file_name\0accesscontrol
15475: value -> reference to hash
15476: hash contains key = value pairs
15477: where key = uniqueID:scope_end_start
15478: value = UNIX time record was last updated
15479:
15480: Used to improve speed of look-ups of access controls for each file.
15481:
15482: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
15483:
1.1172.2.13 raeburn 15484: =item *
15485:
1.749 raeburn 15486: modify_access_controls():
15487:
15488: Modifies access controls for a portfolio file
15489: Args
15490: 1. file name
15491: 2. reference to hash of required changes,
15492: 3. domain
15493: 4. username
15494: where domain,username are the domain of the portfolio owner
15495: (either a user or a course)
15496:
15497: Returns:
15498: 1. result of additions or updates ('ok' or 'error', with error message).
15499: 2. result of deletions ('ok' or 'error', with error message).
15500: 3. reference to hash of any new or updated access controls.
15501: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
15502: key = integer (inbound ID)
1.1172.2.13 raeburn 15503: value = uniqueID
15504:
15505: =item *
15506:
15507: get_timebased_id():
15508:
15509: Attempts to get a unique timestamp-based suffix for use with items added to a
15510: course via the Course Editor (e.g., folders, composite pages,
15511: group bulletin boards).
15512:
15513: Args: (first three required; six others optional)
15514:
15515: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
15516: docssequence, or name of group
15517:
15518: 2. keyid (alphanumeric): name of temporary locking key in hash,
15519: e.g., num, boardids
15520:
15521: 3. namespace: name of gdbm file used to store suffixes already assigned;
15522: file will be named nohist_namespace.db
15523:
15524: 4. cdom: domain of course; default is current course domain from %env
15525:
15526: 5. cnum: course number; default is current course number from %env
15527:
15528: 6. idtype: set to concat if an additional digit is to be appended to the
15529: unix timestamp to form the suffix, if the plain timestamp is already
15530: in use. Default is to not do this, but simply increment the unix
15531: timestamp by 1 until a unique key is obtained.
15532:
15533: 7. who: holder of locking key; defaults to user:domain for user.
15534:
15535: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
15536: retrying); default is 3.
15537:
15538: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
15539:
15540: Returns:
15541:
15542: 1. suffix obtained (numeric)
15543:
15544: 2. result of deleting locking key (ok if deleted, or lock never obtained)
15545:
15546: 3. error: contains (localized) error message if an error occurred.
15547:
1.747 albertel 15548:
1.608 albertel 15549: =back
15550:
1.243 albertel 15551: =head2 HTTP Helper Routines
15552:
15553: =over 4
15554:
1.191 harris41 15555: =item *
15556:
15557: escape() : unpack non-word characters into CGI-compatible hex codes
15558:
15559: =item *
15560:
15561: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
15562:
1.243 albertel 15563: =back
15564:
15565: =head1 PRIVATE SUBROUTINES
15566:
15567: =head2 Underlying communication routines (Shouldn't call)
15568:
15569: =over 4
15570:
15571: =item *
15572:
15573: subreply() : tries to pass a message to lonc, returns con_lost if incapable
15574:
15575: =item *
15576:
15577: reply() : uses subreply to send a message to remote machine, logs all failures
15578:
15579: =item *
15580:
15581: critical() : passes a critical message to another server; if cannot
15582: get through then place message in connection buffer directory and
15583: returns con_delayed, if incapable of saving message, returns
15584: con_failed
15585:
15586: =item *
15587:
15588: reconlonc() : tries to reconnect lonc client processes.
15589:
15590: =back
15591:
15592: =head2 Resource Access Logging
15593:
15594: =over 4
15595:
15596: =item *
15597:
15598: flushcourselogs() : flush (save) buffer logs and access logs
15599:
15600: =item *
15601:
15602: courselog($what) : save message for course in hash
15603:
15604: =item *
15605:
15606: courseacclog($what) : save message for course using &courselog(). Perform
15607: special processing for specific resource types (problems, exams, quizzes, etc).
15608:
1.191 harris41 15609: =item *
15610:
15611: goodbye() : flush course logs and log shutting down; it is called in srm.conf
15612: as a PerlChildExitHandler
1.243 albertel 15613:
15614: =back
15615:
15616: =head2 Other
15617:
15618: =over 4
15619:
15620: =item *
15621:
15622: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 15623:
15624: =back
15625:
15626: =cut
1.877 foxr 15627:
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