Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.797
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.797 ! raeburn 4: # $Id: lonnet.pm,v 1.796 2006/10/18 02:39:12 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:
1.1 albertel 30: package Apache::lonnet;
31:
32: use strict;
1.8 www 33: use LWP::UserAgent();
1.15 www 34: use HTTP::Headers;
1.486 www 35: use HTTP::Date;
36: # use Date::Parse;
1.11 www 37: use vars
1.599 albertel 38: qw(%perlvar %hostname %badServerCache %iphost %spareid %hostdom
39: %libserv %pr %prp $memcache %packagetab
1.662 raeburn 40: %courselogs %accesshash %userrolehash %domainrolehash $processmarker $dumpcount
1.741 raeburn 41: %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf %coursetypebuf
1.599 albertel 42: %domaindescription %domain_auth_def %domain_auth_arg_def
1.685 raeburn 43: %domain_lang_def %domain_city %domain_longi %domain_lati %domain_primary
44: $tmpdir $_64bit %env);
1.403 www 45:
1.1 albertel 46: use IO::Socket;
1.31 www 47: use GDBM_File;
1.208 albertel 48: use HTML::LCParser;
1.637 raeburn 49: use HTML::Parser;
1.88 www 50: use Fcntl qw(:flock);
1.557 albertel 51: use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw nfreeze);
1.539 albertel 52: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 53: use Cache::Memcached;
1.676 albertel 54: use Digest::MD5;
1.790 albertel 55: use Math::Random;
1.740 www 56: use lib '/home/httpd/lib/perl';
57: use LONCAPA;
58: use LONCAPA::Configuration;
1.676 albertel 59:
1.195 www 60: my $readit;
1.550 foxr 61: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 62:
1.619 albertel 63: require Exporter;
64:
65: our @ISA = qw (Exporter);
66: our @EXPORT = qw(%env);
67:
1.449 matthew 68: =pod
69:
70: =head1 Package Variables
71:
72: These are largely undocumented, so if you decipher one please note it here.
73:
74: =over 4
75:
76: =item $processmarker
77:
78: Contains the time this process was started and this servers host id.
79:
80: =item $dumpcount
81:
82: Counts the number of times a message log flush has been attempted (regardless
83: of success) by this process. Used as part of the filename when messages are
84: delayed.
85:
86: =back
87:
88: =cut
89:
90:
1.1 albertel 91: # --------------------------------------------------------------------- Logging
1.729 www 92: {
93: my $logid;
94: sub instructor_log {
95: my ($hash_name,$storehash,$delflag,$uname,$udom)=@_;
96: $logid++;
97: my $id=time().'00000'.$$.'00000'.$logid;
98: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 99: { $id => {
100: 'exe_uname' => $env{'user.name'},
101: 'exe_udom' => $env{'user.domain'},
102: 'exe_time' => time(),
103: 'exe_ip' => $ENV{'REMOTE_ADDR'},
104: 'delflag' => $delflag,
105: 'logentry' => $storehash,
106: 'uname' => $uname,
107: 'udom' => $udom,
108: }
109: },
1.729 www 110: $env{'course.'.$env{'request.course.id'}.'.domain'},
111: $env{'course.'.$env{'request.course.id'}.'.num'}
112: );
113: }
114: }
1.1 albertel 115:
1.163 harris41 116: sub logtouch {
117: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 118: unless (-e "$execdir/logs/lonnet.log") {
119: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 120: close $fh;
121: }
122: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
123: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
124: }
125:
1.1 albertel 126: sub logthis {
127: my $message=shift;
128: my $execdir=$perlvar{'lonDaemons'};
129: my $now=time;
130: my $local=localtime($now);
1.448 albertel 131: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
132: print $fh "$local ($$): $message\n";
133: close($fh);
134: }
1.1 albertel 135: return 1;
136: }
137:
138: sub logperm {
139: my $message=shift;
140: my $execdir=$perlvar{'lonDaemons'};
141: my $now=time;
142: my $local=localtime($now);
1.448 albertel 143: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
144: print $fh "$now:$message:$local\n";
145: close($fh);
146: }
1.1 albertel 147: return 1;
148: }
149:
150: # -------------------------------------------------- Non-critical communication
151: sub subreply {
152: my ($cmd,$server)=@_;
1.704 albertel 153: my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server};
1.549 foxr 154: #
155: # With loncnew process trimming, there's a timing hole between lonc server
156: # process exit and the master server picking up the listen on the AF_UNIX
157: # socket. In that time interval, a lock file will exist:
158:
159: my $lockfile=$peerfile.".lock";
160: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
161: sleep(1);
162: }
163: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 164: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 165: #
1.550 foxr 166: # We'll give the connection a few tries before abandoning it. If
167: # connection is not possible, we'll con_lost back to the client.
168: #
169: my $client;
170: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
171: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
172: Type => SOCK_STREAM,
173: Timeout => 10);
174: if($client) {
175: last; # Connected!
176: }
177: sleep(1); # Try again later if failed connection.
178: }
179: my $answer;
180: if ($client) {
1.704 albertel 181: print $client "sethost:$server:$cmd\n";
1.550 foxr 182: $answer=<$client>;
183: if (!$answer) { $answer="con_lost"; }
184: chomp($answer);
185: } else {
186: $answer = 'con_lost'; # Failed connection.
187: }
1.1 albertel 188: return $answer;
189: }
190:
191: sub reply {
192: my ($cmd,$server)=@_;
1.205 www 193: unless (defined($hostname{$server})) { return 'no_such_host'; }
1.1 albertel 194: my $answer=subreply($cmd,$server);
1.65 www 195: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 196: &logthis("<font color=\"blue\">WARNING:".
1.12 www 197: " $cmd to $server returned $answer</font>");
198: }
1.1 albertel 199: return $answer;
200: }
201:
202: # ----------------------------------------------------------- Send USR1 to lonc
203:
204: sub reconlonc {
205: my $peerfile=shift;
206: &logthis("Trying to reconnect for $peerfile");
207: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 208: if (open(my $fh,"<$loncfile")) {
1.1 albertel 209: my $loncpid=<$fh>;
210: chomp($loncpid);
211: if (kill 0 => $loncpid) {
212: &logthis("lonc at pid $loncpid responding, sending USR1");
213: kill USR1 => $loncpid;
214: sleep 1;
215: if (-e "$peerfile") { return; }
216: &logthis("$peerfile still not there, give it another try");
217: sleep 5;
218: if (-e "$peerfile") { return; }
1.12 www 219: &logthis(
1.672 albertel 220: "<font color=\"blue\">WARNING: $peerfile still not there, giving up</font>");
1.1 albertel 221: } else {
1.12 www 222: &logthis(
1.672 albertel 223: "<font color=\"blue\">WARNING:".
1.12 www 224: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 225: }
226: } else {
1.672 albertel 227: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 228: }
229: }
230:
231: # ------------------------------------------------------ Critical communication
1.12 www 232:
1.1 albertel 233: sub critical {
234: my ($cmd,$server)=@_;
1.89 www 235: unless ($hostname{$server}) {
1.672 albertel 236: &logthis("<font color=\"blue\">WARNING:".
1.89 www 237: " Critical message to unknown server ($server)</font>");
238: return 'no_such_host';
239: }
1.1 albertel 240: my $answer=reply($cmd,$server);
241: if ($answer eq 'con_lost') {
242: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 243: my $answer=reply($cmd,$server);
1.1 albertel 244: if ($answer eq 'con_lost') {
245: my $now=time;
246: my $middlename=$cmd;
1.5 www 247: $middlename=substr($middlename,0,16);
1.1 albertel 248: $middlename=~s/\W//g;
249: my $dfilename=
1.305 www 250: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
251: $dumpcount++;
1.1 albertel 252: {
1.448 albertel 253: my $dfh;
254: if (open($dfh,">$dfilename")) {
255: print $dfh "$cmd\n";
256: close($dfh);
257: }
1.1 albertel 258: }
259: sleep 2;
260: my $wcmd='';
261: {
1.448 albertel 262: my $dfh;
263: if (open($dfh,"<$dfilename")) {
264: $wcmd=<$dfh>;
265: close($dfh);
266: }
1.1 albertel 267: }
268: chomp($wcmd);
1.7 www 269: if ($wcmd eq $cmd) {
1.672 albertel 270: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 271: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 272: &logperm("D:$server:$cmd");
273: return 'con_delayed';
274: } else {
1.672 albertel 275: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 276: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 277: &logperm("F:$server:$cmd");
278: return 'con_failed';
279: }
280: }
281: }
282: return $answer;
1.405 albertel 283: }
284:
1.755 albertel 285: # ------------------------------------------- check if return value is an error
286:
287: sub error {
288: my ($result) = @_;
1.756 albertel 289: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 290: if ($2 == 2) { return undef; }
291: return $1;
292: }
293: return undef;
294: }
295:
1.783 albertel 296: sub convert_and_load_session_env {
297: my ($lonidsdir,$handle)=@_;
298: my @profile;
299: {
300: open(my $idf,"$lonidsdir/$handle.id");
301: flock($idf,LOCK_SH);
302: @profile=<$idf>;
303: close($idf);
304: }
305: my %temp_env;
306: foreach my $line (@profile) {
1.786 albertel 307: if ($line !~ m/=/) {
308: return 0;
309: }
1.783 albertel 310: chomp($line);
311: my ($envname,$envvalue)=split(/=/,$line,2);
312: $temp_env{&unescape($envname)} = &unescape($envvalue);
313: }
314: unlink("$lonidsdir/$handle.id");
315: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
316: 0640)) {
317: %disk_env = %temp_env;
318: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
319: untie(%disk_env);
320: }
1.786 albertel 321: return 1;
1.783 albertel 322: }
323:
1.374 www 324: # ------------------------------------------- Transfer profile into environment
1.780 albertel 325: my $env_loaded;
326: sub transfer_profile_to_env {
1.788 albertel 327: my ($lonidsdir,$handle,$force_transfer) = @_;
328: if (!$force_transfer && $env_loaded) { return; }
1.374 www 329:
1.720 albertel 330: if (!defined($lonidsdir)) {
331: $lonidsdir = $perlvar{'lonIDsDir'};
332: }
333: if (!defined($handle)) {
334: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
335: }
336:
1.786 albertel 337: my $convert;
338: {
339: open(my $idf,"$lonidsdir/$handle.id");
340: flock($idf,LOCK_SH);
341: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
342: &GDBM_READER(),0640)) {
343: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
344: untie(%disk_env);
345: } else {
346: $convert = 1;
347: }
348: }
349: if ($convert) {
350: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
351: &logthis("Failed to load session, or convert session.");
352: }
1.374 www 353: }
1.783 albertel 354:
1.786 albertel 355: my %remove;
1.783 albertel 356: while ( my $envname = each(%env) ) {
1.433 matthew 357: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
358: if ($time < time-300) {
1.783 albertel 359: $remove{$key}++;
1.433 matthew 360: }
361: }
362: }
1.783 albertel 363:
1.619 albertel 364: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 365: $env_loaded=1;
1.783 albertel 366: foreach my $expired_key (keys(%remove)) {
1.433 matthew 367: &delenv($expired_key);
1.374 www 368: }
1.1 albertel 369: }
370:
1.5 www 371: # ---------------------------------------------------------- Append Environment
372:
373: sub appenv {
1.6 www 374: my %newenv=@_;
1.692 albertel 375: foreach my $key (keys(%newenv)) {
376: if (($newenv{$key}=~/^user\.role/) || ($newenv{$key}=~/^user\.priv/)) {
1.672 albertel 377: &logthis("<font color=\"blue\">WARNING: ".
1.692 albertel 378: "Attempt to modify environment ".$key." to ".$newenv{$key}
1.151 www 379: .'</font>');
1.692 albertel 380: delete($newenv{$key});
1.35 www 381: } else {
1.692 albertel 382: $env{$key}=$newenv{$key};
1.35 www 383: }
1.191 harris41 384: }
1.783 albertel 385: if (tie(my %disk_env,'GDBM_File',$env{'user.environment'},&GDBM_WRITER(),
386: 0640)) {
387: while (my ($key,$value) = each(%newenv)) {
388: $disk_env{$key} = $value;
1.448 albertel 389: }
1.783 albertel 390: untie(%disk_env);
1.56 www 391: }
392: return 'ok';
393: }
394: # ----------------------------------------------------- Delete from Environment
395:
396: sub delenv {
397: my $delthis=shift;
398: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 399: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 400: "Attempt to delete from environment ".$delthis);
401: return 'error';
402: }
1.783 albertel 403: if (tie(my %disk_env,'GDBM_File',$env{'user.environment'},&GDBM_WRITER(),
404: 0640)) {
405: foreach my $key (keys(%disk_env)) {
406: if ($key=~/^$delthis/) {
1.619 albertel 407: delete($env{$key});
1.783 albertel 408: delete($disk_env{$key});
1.473 matthew 409: }
1.448 albertel 410: }
1.783 albertel 411: untie(%disk_env);
1.5 www 412: }
413: return 'ok';
1.369 albertel 414: }
415:
1.790 albertel 416: sub get_env_multiple {
417: my ($name) = @_;
418: my @values;
419: if (defined($env{$name})) {
420: # exists is it an array
421: if (ref($env{$name})) {
422: @values=@{ $env{$name} };
423: } else {
424: $values[0]=$env{$name};
425: }
426: }
427: return(@values);
428: }
429:
1.369 albertel 430: # ------------------------------------------ Find out current server userload
431: # there is a copy in lond
432: sub userload {
433: my $numusers=0;
434: {
435: opendir(LONIDS,$perlvar{'lonIDsDir'});
436: my $filename;
437: my $curtime=time;
438: while ($filename=readdir(LONIDS)) {
439: if ($filename eq '.' || $filename eq '..') {next;}
1.404 albertel 440: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 441: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 442: }
443: closedir(LONIDS);
444: }
445: my $userloadpercent=0;
446: my $maxuserload=$perlvar{'lonUserLoadLim'};
447: if ($maxuserload) {
1.371 albertel 448: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 449: }
1.372 albertel 450: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 451: return $userloadpercent;
1.283 www 452: }
453:
454: # ------------------------------------------ Fight off request when overloaded
455:
456: sub overloaderror {
457: my ($r,$checkserver)=@_;
458: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
459: my $loadavg;
460: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 461: open(my $loadfile,'/proc/loadavg');
1.283 www 462: $loadavg=<$loadfile>;
463: $loadavg =~ s/\s.*//g;
1.285 matthew 464: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 465: close($loadfile);
1.283 www 466: } else {
467: $loadavg=&reply('load',$checkserver);
468: }
1.285 matthew 469: my $overload=$loadavg-100;
1.283 www 470: if ($overload>0) {
1.285 matthew 471: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 472: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 473: return 413;
1.283 www 474: }
475: return '';
1.5 www 476: }
1.1 albertel 477:
478: # ------------------------------ Find server with least workload from spare.tab
1.11 www 479:
1.1 albertel 480: sub spareserver {
1.670 albertel 481: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 482: my $spare_server;
1.370 albertel 483: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 484: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
485: : $userloadpercent;
486:
487: foreach my $try_server (@{ $spareid{'primary'} }) {
488: ($spare_server, $lowest_load) =
489: &compare_server_load($try_server, $spare_server, $lowest_load);
490: }
491:
492: my $found_server = ($spare_server ne '' && $lowest_load < 100);
493:
494: if (!$found_server) {
495: foreach my $try_server (@{ $spareid{'default'} }) {
496: ($spare_server, $lowest_load) =
497: &compare_server_load($try_server, $spare_server, $lowest_load);
498: }
499: }
500:
501: if (!$want_server_name) {
502: $spare_server="http://$hostname{$spare_server}";
503: }
504: return $spare_server;
505: }
506:
507: sub compare_server_load {
508: my ($try_server, $spare_server, $lowest_load) = @_;
509:
510: my $loadans = &reply('load', $try_server);
511: my $userloadans = &reply('userload',$try_server);
512:
513: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
514: next; #didn't get a number from the server
515: }
516:
517: my $load;
518: if ($loadans =~ /\d/) {
519: if ($userloadans =~ /\d/) {
520: #both are numbers, pick the bigger one
521: $load = ($loadans > $userloadans) ? $loadans
522: : $userloadans;
1.411 albertel 523: } else {
1.784 albertel 524: $load = $loadans;
1.411 albertel 525: }
1.784 albertel 526: } else {
527: $load = $userloadans;
528: }
529:
530: if (($load =~ /\d/) && ($load < $lowest_load)) {
531: $spare_server = $try_server;
532: $lowest_load = $load;
1.370 albertel 533: }
1.784 albertel 534: return ($spare_server,$lowest_load);
1.202 matthew 535: }
536: # --------------------------------------------- Try to change a user's password
537:
538: sub changepass {
539: my ($uname,$udom,$currentpass,$newpass,$server)=@_;
540: $currentpass = &escape($currentpass);
541: $newpass = &escape($newpass);
542: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass",
543: $server);
544: if (! $answer) {
545: &logthis("No reply on password change request to $server ".
546: "by $uname in domain $udom.");
547: } elsif ($answer =~ "^ok") {
548: &logthis("$uname in $udom successfully changed their password ".
549: "on $server.");
550: } elsif ($answer =~ "^pwchange_failure") {
551: &logthis("$uname in $udom was unable to change their password ".
552: "on $server. The action was blocked by either lcpasswd ".
553: "or pwchange");
554: } elsif ($answer =~ "^non_authorized") {
555: &logthis("$uname in $udom did not get their password correct when ".
556: "attempting to change it on $server.");
557: } elsif ($answer =~ "^auth_mode_error") {
558: &logthis("$uname in $udom attempted to change their password despite ".
559: "not being locally or internally authenticated on $server.");
560: } elsif ($answer =~ "^unknown_user") {
561: &logthis("$uname in $udom attempted to change their password ".
562: "on $server but were unable to because $server is not ".
563: "their home server.");
564: } elsif ($answer =~ "^refused") {
565: &logthis("$server refused to change $uname in $udom password because ".
566: "it was sent an unencrypted request to change the password.");
567: }
568: return $answer;
1.1 albertel 569: }
570:
1.169 harris41 571: # ----------------------- Try to determine user's current authentication scheme
572:
573: sub queryauthenticate {
574: my ($uname,$udom)=@_;
1.456 albertel 575: my $uhome=&homeserver($uname,$udom);
576: if (!$uhome) {
577: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
578: return 'no_host';
579: }
580: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
581: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
582: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 583: }
1.456 albertel 584: return $answer;
1.169 harris41 585: }
586:
1.1 albertel 587: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 588:
1.1 albertel 589: sub authenticate {
590: my ($uname,$upass,$udom)=@_;
1.12 www 591: $upass=escape($upass);
1.199 www 592: $uname=~s/\W//g;
1.471 albertel 593: my $uhome=&homeserver($uname,$udom);
594: if (!$uhome) {
595: &logthis("User $uname at $udom is unknown in authenticate");
596: return 'no_host';
1.1 albertel 597: }
1.471 albertel 598: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);
599: if ($answer eq 'authorized') {
600: &logthis("User $uname at $udom authorized by $uhome");
601: return $uhome;
602: }
603: if ($answer eq 'non_authorized') {
604: &logthis("User $uname at $udom rejected by $uhome");
605: return 'no_host';
1.9 www 606: }
1.471 albertel 607: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 608: return 'no_host';
609: }
610:
611: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 612:
1.599 albertel 613: my %homecache;
1.1 albertel 614: sub homeserver {
1.230 stredwic 615: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 616: my $index="$uname:$udom";
1.426 albertel 617:
1.599 albertel 618: if (exists($homecache{$index})) { return $homecache{$index}; }
1.1 albertel 619: my $tryserver;
620: foreach $tryserver (keys %libserv) {
1.230 stredwic 621: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 622: exists($badServerCache{$tryserver}));
1.1 albertel 623: if ($hostdom{$tryserver} eq $udom) {
624: my $answer=reply("home:$udom:$uname",$tryserver);
625: if ($answer eq 'found') {
1.599 albertel 626: return $homecache{$index}=$tryserver;
1.231 stredwic 627: } elsif ($answer eq 'no_host') {
628: $badServerCache{$tryserver}=1;
1.221 matthew 629: }
1.1 albertel 630: }
631: }
632: return 'no_host';
1.70 www 633: }
634:
635: # ------------------------------------- Find the usernames behind a list of IDs
636:
637: sub idget {
638: my ($udom,@ids)=@_;
639: my %returnhash=();
640:
641: my $tryserver;
642: foreach $tryserver (keys %libserv) {
643: if ($hostdom{$tryserver} eq $udom) {
644: my $idlist=join('&',@ids);
645: $idlist=~tr/A-Z/a-z/;
646: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
647: my @answer=();
1.76 www 648: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1.70 www 649: @answer=split(/\&/,$reply);
650: } ;
651: my $i;
652: for ($i=0;$i<=$#ids;$i++) {
653: if ($answer[$i]) {
654: $returnhash{$ids[$i]}=$answer[$i];
655: }
656: }
657: }
658: }
659: return %returnhash;
660: }
661:
662: # ------------------------------------- Find the IDs behind a list of usernames
663:
664: sub idrget {
665: my ($udom,@unames)=@_;
666: my %returnhash=();
1.191 harris41 667: foreach (@unames) {
1.70 www 668: $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1];
1.191 harris41 669: }
1.70 www 670: return %returnhash;
671: }
672:
673: # ------------------------------- Store away a list of names and associated IDs
674:
675: sub idput {
676: my ($udom,%ids)=@_;
677: my %servers=();
1.191 harris41 678: foreach (keys %ids) {
1.487 albertel 679: &cput('environment',{'id'=>$ids{$_}},$udom,$_);
1.70 www 680: my $uhom=&homeserver($_,$udom);
681: if ($uhom ne 'no_host') {
682: my $id=&escape($ids{$_});
683: $id=~tr/A-Z/a-z/;
684: my $unam=&escape($_);
685: if ($servers{$uhom}) {
686: $servers{$uhom}.='&'.$id.'='.$unam;
687: } else {
688: $servers{$uhom}=$id.'='.$unam;
689: }
690: }
1.191 harris41 691: }
692: foreach (keys %servers) {
1.70 www 693: &critical('idput:'.$udom.':'.$servers{$_},$_);
1.191 harris41 694: }
1.344 www 695: }
696:
697: # --------------------------------------------------- Assign a key to a student
698:
699: sub assign_access_key {
1.364 www 700: #
701: # a valid key looks like uname:udom#comments
702: # comments are being appended
703: #
1.498 www 704: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
705: $kdom=
1.620 albertel 706: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 707: $knum=
1.620 albertel 708: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 709: $cdom=
1.620 albertel 710: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 711: $cnum=
1.620 albertel 712: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
713: $udom=$env{'user.name'} unless (defined($udom));
714: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 715: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 716: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 717: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 718: # assigned to this person
719: # - this should not happen,
1.345 www 720: # unless something went wrong
721: # the first time around
722: # ready to assign
1.364 www 723: $logentry=$1.'; '.$logentry;
1.496 www 724: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 725: $kdom,$knum) eq 'ok') {
1.345 www 726: # key now belongs to user
1.346 www 727: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 728: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
729: &appenv('environment.'.$envkey => $ckey);
730: return 'ok';
731: } else {
732: return
733: 'error: Count not permanently assign key, will need to be re-entered later.';
734: }
735: } else {
736: return 'error: Could not assign key, try again later.';
737: }
1.364 www 738: } elsif (!$existing{$ckey}) {
1.345 www 739: # the key does not exist
740: return 'error: The key does not exist';
741: } else {
742: # the key is somebody else's
743: return 'error: The key is already in use';
744: }
1.344 www 745: }
746:
1.364 www 747: # ------------------------------------------ put an additional comment on a key
748:
749: sub comment_access_key {
750: #
751: # a valid key looks like uname:udom#comments
752: # comments are being appended
753: #
754: my ($ckey,$cdom,$cnum,$logentry)=@_;
755: $cdom=
1.620 albertel 756: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 757: $cnum=
1.620 albertel 758: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 759: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
760: if ($existing{$ckey}) {
761: $existing{$ckey}.='; '.$logentry;
762: # ready to assign
1.367 www 763: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 764: $cdom,$cnum) eq 'ok') {
765: return 'ok';
766: } else {
767: return 'error: Count not store comment.';
768: }
769: } else {
770: # the key does not exist
771: return 'error: The key does not exist';
772: }
773: }
774:
1.344 www 775: # ------------------------------------------------------ Generate a set of keys
776:
777: sub generate_access_keys {
1.364 www 778: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 779: $cdom=
1.620 albertel 780: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 781: $cnum=
1.620 albertel 782: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 783: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 784: unless (($cdom) && ($cnum)) { return 0; }
785: if ($number>10000) { return 0; }
786: sleep(2); # make sure don't get same seed twice
787: srand(time()^($$+($$<<15))); # from "Programming Perl"
788: my $total=0;
789: for (my $i=1;$i<=$number;$i++) {
790: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
791: sprintf("%lx",int(100000*rand)).'-'.
792: sprintf("%lx",int(100000*rand));
793: $newkey=~s/1/g/g; # folks mix up 1 and l
794: $newkey=~s/0/h/g; # and also 0 and O
795: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
796: if ($existing{$newkey}) {
797: $i--;
798: } else {
1.364 www 799: if (&put('accesskeys',
800: { $newkey => '# generated '.localtime().
1.620 albertel 801: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 802: '; '.$logentry },
803: $cdom,$cnum) eq 'ok') {
1.344 www 804: $total++;
805: }
806: }
807: }
1.620 albertel 808: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 809: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
810: return $total;
811: }
812:
813: # ------------------------------------------------------- Validate an accesskey
814:
815: sub validate_access_key {
816: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
817: $cdom=
1.620 albertel 818: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 819: $cnum=
1.620 albertel 820: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
821: $udom=$env{'user.domain'} unless (defined($udom));
822: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 823: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 824: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 825: }
826:
827: # ------------------------------------- Find the section of student in a course
1.652 albertel 828: sub devalidate_getsection_cache {
829: my ($udom,$unam,$courseid)=@_;
830: $courseid=~s/\_/\//g;
831: $courseid=~s/^(\w)/\/$1/;
832: my $hashid="$udom:$unam:$courseid";
833: &devalidate_cache_new('getsection',$hashid);
834: }
1.298 matthew 835:
836: sub getsection {
837: my ($udom,$unam,$courseid)=@_;
1.599 albertel 838: my $cachetime=1800;
1.298 matthew 839: $courseid=~s/\_/\//g;
840: $courseid=~s/^(\w)/\/$1/;
1.551 albertel 841:
842: my $hashid="$udom:$unam:$courseid";
1.599 albertel 843: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 844: if (defined($cached)) { return $result; }
845:
1.298 matthew 846: my %Pending;
847: my %Expired;
848: #
849: # Each role can either have not started yet (pending), be active,
850: # or have expired.
851: #
852: # If there is an active role, we are done.
853: #
854: # If there is more than one role which has not started yet,
855: # choose the one which will start sooner
856: # If there is one role which has not started yet, return it.
857: #
858: # If there is more than one expired role, choose the one which ended last.
859: # If there is a role which has expired, return it.
860: #
861: foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
862: &homeserver($unam,$udom)))) {
863: my ($key,$value)=split(/\=/,$_);
864: $key=&unescape($key);
1.479 albertel 865: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 866: my $section=$1;
867: if ($key eq $courseid.'_st') { $section=''; }
868: my ($dummy,$end,$start)=split(/\_/,&unescape($value));
869: my $now=time;
1.548 albertel 870: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 871: $Expired{$end}=$section;
872: next;
873: }
1.548 albertel 874: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 875: $Pending{$start}=$section;
876: next;
877: }
1.599 albertel 878: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 879: }
880: #
881: # Presumedly there will be few matching roles from the above
882: # loop and the sorting time will be negligible.
883: if (scalar(keys(%Pending))) {
884: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 885: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 886: }
887: if (scalar(keys(%Expired))) {
888: my @sorted = sort {$a <=> $b} keys(%Expired);
889: my $time = pop(@sorted);
1.599 albertel 890: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 891: }
1.599 albertel 892: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 893: }
1.70 www 894:
1.599 albertel 895: sub save_cache {
896: &purge_remembered();
1.722 albertel 897: #&Apache::loncommon::validate_page();
1.620 albertel 898: undef(%env);
1.780 albertel 899: undef($env_loaded);
1.599 albertel 900: }
1.452 albertel 901:
1.599 albertel 902: my $to_remember=-1;
903: my %remembered;
904: my %accessed;
905: my $kicks=0;
906: my $hits=0;
907: sub devalidate_cache_new {
908: my ($name,$id,$debug) = @_;
909: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
910: $id=&escape($name.':'.$id);
911: $memcache->delete($id);
912: delete($remembered{$id});
913: delete($accessed{$id});
914: }
915:
916: sub is_cached_new {
917: my ($name,$id,$debug) = @_;
918: $id=&escape($name.':'.$id);
919: if (exists($remembered{$id})) {
920: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
921: $accessed{$id}=[&gettimeofday()];
922: $hits++;
923: return ($remembered{$id},1);
924: }
925: my $value = $memcache->get($id);
926: if (!(defined($value))) {
927: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 928: return (undef,undef);
1.416 albertel 929: }
1.599 albertel 930: if ($value eq '__undef__') {
931: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
932: $value=undef;
933: }
934: &make_room($id,$value,$debug);
935: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
936: return ($value,1);
937: }
938:
939: sub do_cache_new {
940: my ($name,$id,$value,$time,$debug) = @_;
941: $id=&escape($name.':'.$id);
942: my $setvalue=$value;
943: if (!defined($setvalue)) {
944: $setvalue='__undef__';
945: }
1.623 albertel 946: if (!defined($time) ) {
947: $time=600;
948: }
1.599 albertel 949: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.600 albertel 950: $memcache->set($id,$setvalue,$time);
951: # need to make a copy of $value
952: #&make_room($id,$value,$debug);
1.599 albertel 953: return $value;
954: }
955:
956: sub make_room {
957: my ($id,$value,$debug)=@_;
958: $remembered{$id}=$value;
959: if ($to_remember<0) { return; }
960: $accessed{$id}=[&gettimeofday()];
961: if (scalar(keys(%remembered)) <= $to_remember) { return; }
962: my $to_kick;
963: my $max_time=0;
964: foreach my $other (keys(%accessed)) {
965: if (&tv_interval($accessed{$other}) > $max_time) {
966: $to_kick=$other;
967: $max_time=&tv_interval($accessed{$other});
968: }
969: }
970: delete($remembered{$to_kick});
971: delete($accessed{$to_kick});
972: $kicks++;
973: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 974: return;
975: }
976:
1.599 albertel 977: sub purge_remembered {
1.604 albertel 978: #&logthis("Tossing ".scalar(keys(%remembered)));
979: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 980: undef(%remembered);
981: undef(%accessed);
1.428 albertel 982: }
1.70 www 983: # ------------------------------------- Read an entry from a user's environment
984:
985: sub userenvironment {
986: my ($udom,$unam,@what)=@_;
987: my %returnhash=();
988: my @answer=split(/\&/,
989: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
990: &homeserver($unam,$udom)));
991: my $i;
992: for ($i=0;$i<=$#what;$i++) {
993: $returnhash{$what[$i]}=&unescape($answer[$i]);
994: }
995: return %returnhash;
1.1 albertel 996: }
997:
1.617 albertel 998: # ---------------------------------------------------------- Get a studentphoto
999: sub studentphoto {
1000: my ($udom,$unam,$ext) = @_;
1001: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1002: if (defined($env{'request.course.id'})) {
1.708 raeburn 1003: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1004: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1005: return(&retrievestudentphoto($udom,$unam,$ext));
1006: } else {
1007: my ($result,$perm_reqd)=
1.707 albertel 1008: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1009: if ($result eq 'ok') {
1010: if (!($perm_reqd eq 'yes')) {
1011: return(&retrievestudentphoto($udom,$unam,$ext));
1012: }
1013: }
1014: }
1015: }
1016: } else {
1017: my ($result,$perm_reqd) =
1.707 albertel 1018: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1019: if ($result eq 'ok') {
1020: if (!($perm_reqd eq 'yes')) {
1021: return(&retrievestudentphoto($udom,$unam,$ext));
1022: }
1023: }
1024: }
1025: return '/adm/lonKaputt/lonlogo_broken.gif';
1026: }
1027:
1028: sub retrievestudentphoto {
1029: my ($udom,$unam,$ext,$type) = @_;
1030: my $home=&Apache::lonnet::homeserver($unam,$udom);
1031: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1032: if ($ret eq 'ok') {
1033: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1034: if ($type eq 'thumbnail') {
1035: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1036: }
1037: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1038: return $tokenurl;
1039: } else {
1040: if ($type eq 'thumbnail') {
1041: return '/adm/lonKaputt/genericstudent_tn.gif';
1042: } else {
1043: return '/adm/lonKaputt/lonlogo_broken.gif';
1044: }
1.617 albertel 1045: }
1046: }
1047:
1.263 www 1048: # -------------------------------------------------------------------- New chat
1049:
1050: sub chatsend {
1.724 raeburn 1051: my ($newentry,$anon,$group)=@_;
1.620 albertel 1052: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1053: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1054: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1055: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1056: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1057: &escape($newentry)).':'.$group,$chome);
1.292 www 1058: }
1059:
1060: # ------------------------------------------ Find current version of a resource
1061:
1062: sub getversion {
1063: my $fname=&clutter(shift);
1064: unless ($fname=~/^\/res\//) { return -1; }
1065: return ¤tversion(&filelocation('',$fname));
1066: }
1067:
1068: sub currentversion {
1069: my $fname=shift;
1.599 albertel 1070: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1071: if (defined($cached)) { return $result; }
1.292 www 1072: my $author=$fname;
1073: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1074: my ($udom,$uname)=split(/\//,$author);
1075: my $home=homeserver($uname,$udom);
1076: if ($home eq 'no_host') {
1077: return -1;
1078: }
1079: my $answer=reply("currentversion:$fname",$home);
1080: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1081: return -1;
1082: }
1.599 albertel 1083: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1084: }
1085:
1.1 albertel 1086: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1087:
1.1 albertel 1088: sub subscribe {
1089: my $fname=shift;
1.761 raeburn 1090: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1091: $fname=~s/[\n\r]//g;
1.1 albertel 1092: my $author=$fname;
1093: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1094: my ($udom,$uname)=split(/\//,$author);
1095: my $home=homeserver($uname,$udom);
1.335 albertel 1096: if ($home eq 'no_host') {
1097: return 'not_found';
1.1 albertel 1098: }
1099: my $answer=reply("sub:$fname",$home);
1.64 www 1100: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1101: $answer.=' by '.$home;
1102: }
1.1 albertel 1103: return $answer;
1104: }
1105:
1.8 www 1106: # -------------------------------------------------------------- Replicate file
1107:
1108: sub repcopy {
1109: my $filename=shift;
1.23 www 1110: $filename=~s/\/+/\//g;
1.607 raeburn 1111: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1112: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1113: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1114: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1115: return &repcopy_userfile($filename);
1116: }
1.532 albertel 1117: $filename=~s/[\n\r]//g;
1.8 www 1118: my $transname="$filename.in.transfer";
1.607 raeburn 1119: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1120: my $remoteurl=subscribe($filename);
1.64 www 1121: if ($remoteurl =~ /^con_lost by/) {
1122: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1123: return 'unavailable';
1.8 www 1124: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1125: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1126: return 'not_found';
1.64 www 1127: } elsif ($remoteurl =~ /^rejected by/) {
1128: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1129: return 'forbidden';
1.20 www 1130: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1131: return 'ok';
1.8 www 1132: } else {
1.290 www 1133: my $author=$filename;
1134: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1135: my ($udom,$uname)=split(/\//,$author);
1136: my $home=homeserver($uname,$udom);
1137: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1138: my @parts=split(/\//,$filename);
1139: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1140: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1141: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1142: return 'bad_request';
1.8 www 1143: }
1144: my $count;
1145: for ($count=5;$count<$#parts;$count++) {
1146: $path.="/$parts[$count]";
1147: if ((-e $path)!=1) {
1148: mkdir($path,0777);
1149: }
1150: }
1151: my $ua=new LWP::UserAgent;
1152: my $request=new HTTP::Request('GET',"$remoteurl");
1153: my $response=$ua->request($request,$transname);
1154: if ($response->is_error()) {
1155: unlink($transname);
1156: my $message=$response->status_line;
1.672 albertel 1157: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1158: ." LWP get: $message: $filename</font>");
1.607 raeburn 1159: return 'unavailable';
1.8 www 1160: } else {
1.16 www 1161: if ($remoteurl!~/\.meta$/) {
1162: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1163: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1164: if ($mresponse->is_error()) {
1165: unlink($filename.'.meta');
1166: &logthis(
1.672 albertel 1167: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1168: }
1169: }
1.8 www 1170: rename($transname,$filename);
1.607 raeburn 1171: return 'ok';
1.8 www 1172: }
1.290 www 1173: }
1.8 www 1174: }
1.330 www 1175: }
1176:
1177: # ------------------------------------------------ Get server side include body
1178: sub ssi_body {
1.381 albertel 1179: my ($filelink,%form)=@_;
1.606 matthew 1180: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1181: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1182: }
1.330 www 1183: my $output=($filelink=~/^http\:/?&externalssi($filelink):
1.381 albertel 1184: &ssi($filelink,%form));
1.778 albertel 1185: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1186: $output=~s/^.*?\<body[^\>]*\>//si;
1187: $output=~s/(.*)\<\/body\s*\>.*?$/$1/si;
1.330 www 1188: return $output;
1.8 www 1189: }
1190:
1.15 www 1191: # --------------------------------------------------------- Server Side Include
1192:
1.782 albertel 1193: sub absolute_url {
1194: my ($host_name) = @_;
1195: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1196: if ($host_name eq '') {
1197: $host_name = $ENV{'SERVER_NAME'};
1198: }
1199: return $protocol.$host_name;
1200: }
1201:
1.15 www 1202: sub ssi {
1203:
1.23 www 1204: my ($fn,%form)=@_;
1.15 www 1205:
1206: my $ua=new LWP::UserAgent;
1.23 www 1207:
1208: my $request;
1.711 albertel 1209:
1210: $form{'no_update_last_known'}=1;
1211:
1.23 www 1212: if (%form) {
1.782 albertel 1213: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.201 albertel 1214: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
1.23 www 1215: } else {
1.782 albertel 1216: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1217: }
1218:
1.15 www 1219: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1220: my $response=$ua->request($request);
1221:
1.324 www 1222: return $response->content;
1223: }
1224:
1225: sub externalssi {
1226: my ($url)=@_;
1227: my $ua=new LWP::UserAgent;
1228: my $request=new HTTP::Request('GET',$url);
1229: my $response=$ua->request($request);
1.15 www 1230: return $response->content;
1231: }
1.254 www 1232:
1.492 albertel 1233: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1234:
1235: sub allowuploaded {
1236: my ($srcurl,$url)=@_;
1237: $url=&clutter(&declutter($url));
1238: my $dir=$url;
1239: $dir=~s/\/[^\/]+$//;
1240: my %httpref=();
1241: my $httpurl=&hreflocation('',$url);
1242: $httpref{'httpref.'.$httpurl}=$srcurl;
1243: &Apache::lonnet::appenv(%httpref);
1.254 www 1244: }
1.477 raeburn 1245:
1.478 albertel 1246: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1247: # input: action, courseID, current domain, intended
1.637 raeburn 1248: # path to file, source of file, instruction to parse file for objects,
1249: # ref to hash for embedded objects,
1250: # ref to hash for codebase of java objects.
1251: #
1.485 raeburn 1252: # output: url to file (if action was uploaddoc),
1253: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1254: #
1.478 albertel 1255: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1256: # course.
1.477 raeburn 1257: #
1.478 albertel 1258: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1259: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1260: # course's home server.
1.477 raeburn 1261: #
1.478 albertel 1262: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1263: # be copied from $source (current location) to
1264: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1265: # and will then be copied to
1266: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1267: # course's home server.
1.485 raeburn 1268: #
1.481 raeburn 1269: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1270: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1271: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1272: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1273: # in course's home server.
1.637 raeburn 1274: #
1.477 raeburn 1275:
1276: sub process_coursefile {
1.638 albertel 1277: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1278: my $fetchresult;
1.638 albertel 1279: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1280: if ($action eq 'propagate') {
1.638 albertel 1281: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1282: $home);
1.481 raeburn 1283: } else {
1.477 raeburn 1284: my $fpath = '';
1285: my $fname = $file;
1.478 albertel 1286: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1287: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1288: my $filepath = &build_filepath($fpath);
1.481 raeburn 1289: if ($action eq 'copy') {
1290: if ($source eq '') {
1291: $fetchresult = 'no source file';
1292: return $fetchresult;
1293: } else {
1294: my $destination = $filepath.'/'.$fname;
1295: rename($source,$destination);
1296: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1297: $home);
1.481 raeburn 1298: }
1299: } elsif ($action eq 'uploaddoc') {
1300: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 1301: print $fh $env{'form.'.$source};
1.481 raeburn 1302: close($fh);
1.637 raeburn 1303: if ($parser eq 'parse') {
1304: my $parse_result = &extract_embedded_items($filepath,$fname,$allfiles,$codebase);
1305: unless ($parse_result eq 'ok') {
1306: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
1307: }
1308: }
1.477 raeburn 1309: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1310: $home);
1.481 raeburn 1311: if ($fetchresult eq 'ok') {
1312: return '/uploaded/'.$fpath.'/'.$fname;
1313: } else {
1314: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1315: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 1316: return '/adm/notfound.html';
1317: }
1.477 raeburn 1318: }
1319: }
1.485 raeburn 1320: unless ( $fetchresult eq 'ok') {
1.477 raeburn 1321: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1322: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 1323: }
1324: return $fetchresult;
1325: }
1326:
1.637 raeburn 1327: sub build_filepath {
1328: my ($fpath) = @_;
1329: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
1330: unless ($fpath eq '') {
1331: my @parts=split('/',$fpath);
1332: foreach my $part (@parts) {
1333: $filepath.= '/'.$part;
1334: if ((-e $filepath)!=1) {
1335: mkdir($filepath,0777);
1336: }
1337: }
1338: }
1339: return $filepath;
1340: }
1341:
1342: sub store_edited_file {
1.638 albertel 1343: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 1344: my $file = $primary_url;
1345: $file =~ s#^/uploaded/$docudom/$docuname/##;
1346: my $fpath = '';
1347: my $fname = $file;
1348: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1349: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1350: my $filepath = &build_filepath($fpath);
1351: open(my $fh,'>'.$filepath.'/'.$fname);
1352: print $fh $content;
1353: close($fh);
1.638 albertel 1354: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 1355: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1356: $home);
1.637 raeburn 1357: if ($$fetchresult eq 'ok') {
1358: return '/uploaded/'.$fpath.'/'.$fname;
1359: } else {
1.638 albertel 1360: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1361: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 1362: return '/adm/notfound.html';
1363: }
1364: }
1365:
1.531 albertel 1366: sub clean_filename {
1367: my ($fname)=@_;
1.315 www 1368: # Replace Windows backslashes by forward slashes
1.257 www 1369: $fname=~s/\\/\//g;
1.315 www 1370: # Get rid of everything but the actual filename
1.257 www 1371: $fname=~s/^.*\/([^\/]+)$/$1/;
1.315 www 1372: # Replace spaces by underscores
1373: $fname=~s/\s+/\_/g;
1374: # Replace all other weird characters by nothing
1.317 www 1375: $fname=~s/[^\w\.\-]//g;
1.540 albertel 1376: # Replace all .\d. sequences with _\d. so they no longer look like version
1377: # numbers
1378: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 1379: return $fname;
1380: }
1381:
1.608 albertel 1382: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 1383: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 1384: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 1385: # $coursedoc - if true up to the current course
1386: # if false
1387: # $subdir - directory in userfile to store the file into
1388: # $parser, $allfiles, $codebase - unknown
1389: #
1390: # output: url of file in userspace, or error: <message>
1391: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 1392:
1393:
1.531 albertel 1394: sub userfileupload {
1.719 banghart 1395: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,$destudom)=@_;
1.531 albertel 1396: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 1397: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 1398: $fname=&clean_filename($fname);
1.315 www 1399: # See if there is anything left
1.257 www 1400: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 1401: chop($env{'form.'.$formname});
1.523 raeburn 1402: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
1403: my $now = time;
1404: my $filepath = 'tmp/helprequests/'.$now;
1405: my @parts=split(/\//,$filepath);
1406: my $fullpath = $perlvar{'lonDaemons'};
1407: for (my $i=0;$i<@parts;$i++) {
1408: $fullpath .= '/'.$parts[$i];
1409: if ((-e $fullpath)!=1) {
1410: mkdir($fullpath,0777);
1411: }
1412: }
1413: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 1414: print $fh $env{'form.'.$formname};
1.523 raeburn 1415: close($fh);
1.741 raeburn 1416: return $fullpath.'/'.$fname;
1417: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
1418: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
1419: '_'.$env{'user.domain'}.'/pending';
1420: my @parts=split(/\//,$filepath);
1421: my $fullpath = $perlvar{'lonDaemons'};
1422: for (my $i=0;$i<@parts;$i++) {
1423: $fullpath .= '/'.$parts[$i];
1424: if ((-e $fullpath)!=1) {
1425: mkdir($fullpath,0777);
1426: }
1427: }
1428: open(my $fh,'>'.$fullpath.'/'.$fname);
1429: print $fh $env{'form.'.$formname};
1430: close($fh);
1431: return $fullpath.'/'.$fname;
1.523 raeburn 1432: }
1.719 banghart 1433:
1.258 www 1434: # Create the directory if not present
1.493 albertel 1435: $fname="$subdir/$fname";
1.259 www 1436: if ($coursedoc) {
1.638 albertel 1437: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1438: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 1439: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 1440: return &finishuserfileupload($docuname,$docudom,
1441: $formname,$fname,$parser,$allfiles,
1442: $codebase);
1.481 raeburn 1443: } else {
1.620 albertel 1444: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 1445: return &process_coursefile('uploaddoc',$docuname,$docudom,
1446: $fname,$formname,$parser,
1447: $allfiles,$codebase);
1.481 raeburn 1448: }
1.719 banghart 1449: } elsif (defined($destuname)) {
1450: my $docuname=$destuname;
1451: my $docudom=$destudom;
1452: return &finishuserfileupload($docuname,$docudom,$formname,
1453: $fname,$parser,$allfiles,$codebase);
1454:
1.259 www 1455: } else {
1.638 albertel 1456: my $docuname=$env{'user.name'};
1457: my $docudom=$env{'user.domain'};
1.714 raeburn 1458: if (exists($env{'form.group'})) {
1459: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1460: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1461: }
1.638 albertel 1462: return &finishuserfileupload($docuname,$docudom,$formname,
1463: $fname,$parser,$allfiles,$codebase);
1.259 www 1464: }
1.271 www 1465: }
1466:
1467: sub finishuserfileupload {
1.638 albertel 1468: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase) = @_;
1.477 raeburn 1469: my $path=$docudom.'/'.$docuname.'/';
1.258 www 1470: my $filepath=$perlvar{'lonDocRoot'};
1.494 albertel 1471: my ($fnamepath,$file);
1472: $file=$fname;
1473: if ($fname=~m|/|) {
1474: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
1475: $path.=$fnamepath.'/';
1476: }
1.259 www 1477: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 1478: my $count;
1479: for ($count=4;$count<=$#parts;$count++) {
1480: $filepath.="/$parts[$count]";
1481: if ((-e $filepath)!=1) {
1482: mkdir($filepath,0777);
1483: }
1484: }
1485: # Save the file
1486: {
1.701 albertel 1487: if (!open(FH,'>'.$filepath.'/'.$file)) {
1488: &logthis('Failed to create '.$filepath.'/'.$file);
1489: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
1490: return '/adm/notfound.html';
1491: }
1492: if (!print FH ($env{'form.'.$formname})) {
1493: &logthis('Failed to write to '.$filepath.'/'.$file);
1494: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
1495: return '/adm/notfound.html';
1496: }
1.570 albertel 1497: close(FH);
1.258 www 1498: }
1.637 raeburn 1499: if ($parser eq 'parse') {
1.638 albertel 1500: my $parse_result = &extract_embedded_items($filepath,$file,$allfiles,
1501: $codebase);
1.637 raeburn 1502: unless ($parse_result eq 'ok') {
1.638 albertel 1503: &logthis('Failed to parse '.$filepath.$file.
1504: ' for embedded media: '.$parse_result);
1.637 raeburn 1505: }
1506: }
1.259 www 1507: # Notify homeserver to grep it
1508: #
1.638 albertel 1509: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 1510: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 1511: if ($fetchresult eq 'ok') {
1.259 www 1512: #
1.258 www 1513: # Return the URL to it
1.494 albertel 1514: return '/uploaded/'.$path.$file;
1.263 www 1515: } else {
1.494 albertel 1516: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
1517: ': '.$fetchresult);
1.263 www 1518: return '/adm/notfound.html';
1519: }
1.493 albertel 1520: }
1521:
1.637 raeburn 1522: sub extract_embedded_items {
1.648 raeburn 1523: my ($filepath,$file,$allfiles,$codebase,$content) = @_;
1.637 raeburn 1524: my @state = ();
1525: my %javafiles = (
1526: codebase => '',
1527: code => '',
1528: archive => ''
1529: );
1530: my %mediafiles = (
1531: src => '',
1532: movie => '',
1533: );
1.648 raeburn 1534: my $p;
1535: if ($content) {
1536: $p = HTML::LCParser->new($content);
1537: } else {
1538: $p = HTML::LCParser->new($filepath.'/'.$file);
1539: }
1.641 albertel 1540: while (my $t=$p->get_token()) {
1.640 albertel 1541: if ($t->[0] eq 'S') {
1542: my ($tagname, $attr) = ($t->[1],$t->[2]);
1543: push (@state, $tagname);
1.648 raeburn 1544: if (lc($tagname) eq 'allow') {
1545: &add_filetype($allfiles,$attr->{'src'},'src');
1546: }
1.640 albertel 1547: if (lc($tagname) eq 'img') {
1548: &add_filetype($allfiles,$attr->{'src'},'src');
1549: }
1.645 raeburn 1550: if (lc($tagname) eq 'script') {
1551: if ($attr->{'archive'} =~ /\.jar$/i) {
1552: &add_filetype($allfiles,$attr->{'archive'},'archive');
1553: } else {
1554: &add_filetype($allfiles,$attr->{'src'},'src');
1555: }
1556: }
1557: if (lc($tagname) eq 'link') {
1558: if (lc($attr->{'rel'}) eq 'stylesheet') {
1559: &add_filetype($allfiles,$attr->{'href'},'href');
1560: }
1561: }
1.640 albertel 1562: if (lc($tagname) eq 'object' ||
1563: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
1564: foreach my $item (keys(%javafiles)) {
1565: $javafiles{$item} = '';
1566: }
1567: }
1568: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
1569: my $name = lc($attr->{'name'});
1570: foreach my $item (keys(%javafiles)) {
1571: if ($name eq $item) {
1572: $javafiles{$item} = $attr->{'value'};
1573: last;
1574: }
1575: }
1576: foreach my $item (keys(%mediafiles)) {
1577: if ($name eq $item) {
1578: &add_filetype($allfiles, $attr->{'value'}, 'value');
1579: last;
1580: }
1581: }
1582: }
1583: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
1584: foreach my $item (keys(%javafiles)) {
1585: if ($attr->{$item}) {
1586: $javafiles{$item} = $attr->{$item};
1587: last;
1588: }
1589: }
1590: foreach my $item (keys(%mediafiles)) {
1591: if ($attr->{$item}) {
1592: &add_filetype($allfiles,$attr->{$item},$item);
1593: last;
1594: }
1595: }
1596: }
1597: } elsif ($t->[0] eq 'E') {
1598: my ($tagname) = ($t->[1]);
1599: if ($javafiles{'codebase'} ne '') {
1600: $javafiles{'codebase'} .= '/';
1601: }
1602: if (lc($tagname) eq 'applet' ||
1603: lc($tagname) eq 'object' ||
1604: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
1605: ) {
1606: foreach my $item (keys(%javafiles)) {
1607: if ($item ne 'codebase' && $javafiles{$item} ne '') {
1608: my $file=$javafiles{'codebase'}.$javafiles{$item};
1609: &add_filetype($allfiles,$file,$item);
1610: }
1611: }
1612: }
1613: pop @state;
1614: }
1615: }
1.637 raeburn 1616: return 'ok';
1617: }
1618:
1.639 albertel 1619: sub add_filetype {
1620: my ($allfiles,$file,$type)=@_;
1621: if (exists($allfiles->{$file})) {
1622: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
1623: push(@{$allfiles->{$file}}, &escape($type));
1624: }
1625: } else {
1626: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 1627: }
1628: }
1629:
1.493 albertel 1630: sub removeuploadedurl {
1631: my ($url)=@_;
1632: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 1633: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 1634: }
1635:
1636: sub removeuserfile {
1637: my ($docuname,$docudom,$fname)=@_;
1638: my $home=&homeserver($docuname,$docudom);
1639: return &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.257 www 1640: }
1.15 www 1641:
1.530 albertel 1642: sub mkdiruserfile {
1643: my ($docuname,$docudom,$dir)=@_;
1644: my $home=&homeserver($docuname,$docudom);
1645: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
1646: }
1647:
1.531 albertel 1648: sub renameuserfile {
1649: my ($docuname,$docudom,$old,$new)=@_;
1650: my $home=&homeserver($docuname,$docudom);
1651: return &reply("renameuserfile:$docudom:$docuname:".&escape("$old").':'.
1652: &escape("$new"),$home);
1653: }
1654:
1.14 www 1655: # ------------------------------------------------------------------------- Log
1656:
1657: sub log {
1658: my ($dom,$nam,$hom,$what)=@_;
1.47 www 1659: return critical("log:$dom:$nam:$what",$hom);
1.157 www 1660: }
1661:
1662: # ------------------------------------------------------------------ Course Log
1.352 www 1663: #
1664: # This routine flushes several buffers of non-mission-critical nature
1665: #
1.157 www 1666:
1667: sub flushcourselogs {
1.352 www 1668: &logthis('Flushing log buffers');
1669: #
1670: # course logs
1671: # This is a log of all transactions in a course, which can be used
1672: # for data mining purposes
1673: #
1674: # It also collects the courseid database, which lists last transaction
1675: # times and course titles for all courseids
1676: #
1677: my %courseidbuffer=();
1.191 harris41 1678: foreach (keys %courselogs) {
1.157 www 1679: my $crsid=$_;
1.352 www 1680: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 1681: &escape($courselogs{$crsid}),
1682: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 1683: delete $courselogs{$crsid};
1684: } else {
1685: &logthis('Failed to flush log buffer for '.$crsid);
1686: if (length($courselogs{$crsid})>40000) {
1.672 albertel 1687: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 1688: " exceeded maximum size, deleting.</font>");
1689: delete $courselogs{$crsid};
1690: }
1.352 www 1691: }
1692: if ($courseidbuffer{$coursehombuf{$crsid}}) {
1693: $courseidbuffer{$coursehombuf{$crsid}}.='&'.
1.516 raeburn 1694: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 1695: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.352 www 1696: } else {
1697: $courseidbuffer{$coursehombuf{$crsid}}=
1.516 raeburn 1698: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 1699: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.571 raeburn 1700: }
1.191 harris41 1701: }
1.352 www 1702: #
1703: # Write course id database (reverse lookup) to homeserver of courses
1704: # Is used in pickcourse
1705: #
1706: foreach (keys %courseidbuffer) {
1.353 www 1707: &courseidput($hostdom{$_},$courseidbuffer{$_},$_);
1.352 www 1708: }
1709: #
1710: # File accesses
1711: # Writes to the dynamic metadata of resources to get hit counts, etc.
1712: #
1.449 matthew 1713: foreach my $entry (keys(%accesshash)) {
1.458 matthew 1714: if ($entry =~ /___count$/) {
1715: my ($dom,$name);
1716: ($dom,$name,undef)=($entry=~m:___(\w+)/(\w+)/(.*)___count$:);
1717: if (! defined($dom) || $dom eq '' ||
1718: ! defined($name) || $name eq '') {
1.620 albertel 1719: my $cid = $env{'request.course.id'};
1720: $dom = $env{'request.'.$cid.'.domain'};
1721: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 1722: }
1.450 matthew 1723: my $value = $accesshash{$entry};
1724: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
1725: my %temphash=($url => $value);
1.449 matthew 1726: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
1727: if ($result eq 'ok') {
1728: delete $accesshash{$entry};
1729: } elsif ($result eq 'unknown_cmd') {
1730: # Target server has old code running on it.
1.450 matthew 1731: my %temphash=($entry => $value);
1.449 matthew 1732: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1733: delete $accesshash{$entry};
1734: }
1735: }
1736: } else {
1.458 matthew 1737: my ($dom,$name) = ($entry=~m:___(\w+)/(\w+)/(.*)___(\w+)$:);
1.450 matthew 1738: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 1739: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1740: delete $accesshash{$entry};
1741: }
1.185 www 1742: }
1.191 harris41 1743: }
1.352 www 1744: #
1745: # Roles
1746: # Reverse lookup of user roles for course faculty/staff and co-authorship
1747: #
1.349 www 1748: foreach (keys %userrolehash) {
1749: my $entry=$_;
1.351 www 1750: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 1751: split(/\:/,$entry);
1752: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 1753: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 1754: $rudom,$runame) eq 'ok') {
1755: delete $userrolehash{$entry};
1756: }
1757: }
1.662 raeburn 1758: #
1759: # Reverse lookup of domain roles (dc, ad, li, sc, au)
1760: #
1761: my %domrolebuffer = ();
1762: foreach my $entry (keys %domainrolehash) {
1763: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split/:/,$entry;
1764: if ($domrolebuffer{$rudom}) {
1765: $domrolebuffer{$rudom}.='&'.&escape($entry).
1766: '='.&escape($domainrolehash{$entry});
1767: } else {
1768: $domrolebuffer{$rudom}.=&escape($entry).
1769: '='.&escape($domainrolehash{$entry});
1770: }
1771: delete $domainrolehash{$entry};
1772: }
1773: foreach my $dom (keys(%domrolebuffer)) {
1774: foreach my $tryserver (keys %libserv) {
1775: if ($hostdom{$tryserver} eq $dom) {
1776: unless (&reply('domroleput:'.$dom.':'.
1777: $domrolebuffer{$dom},$tryserver) eq 'ok') {
1778: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
1779: }
1780: }
1781: }
1782: }
1.186 www 1783: $dumpcount++;
1.157 www 1784: }
1785:
1786: sub courselog {
1787: my $what=shift;
1.158 www 1788: $what=time.':'.$what;
1.620 albertel 1789: unless ($env{'request.course.id'}) { return ''; }
1790: $coursedombuf{$env{'request.course.id'}}=
1791: $env{'course.'.$env{'request.course.id'}.'.domain'};
1792: $coursenumbuf{$env{'request.course.id'}}=
1793: $env{'course.'.$env{'request.course.id'}.'.num'};
1794: $coursehombuf{$env{'request.course.id'}}=
1795: $env{'course.'.$env{'request.course.id'}.'.home'};
1796: $coursedescrbuf{$env{'request.course.id'}}=
1797: $env{'course.'.$env{'request.course.id'}.'.description'};
1798: $courseinstcodebuf{$env{'request.course.id'}}=
1799: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
1800: $courseownerbuf{$env{'request.course.id'}}=
1801: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 1802: $coursetypebuf{$env{'request.course.id'}}=
1803: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 1804: if (defined $courselogs{$env{'request.course.id'}}) {
1805: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 1806: } else {
1.620 albertel 1807: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 1808: }
1.620 albertel 1809: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 1810: &flushcourselogs();
1811: }
1.158 www 1812: }
1813:
1814: sub courseacclog {
1815: my $fnsymb=shift;
1.620 albertel 1816: unless ($env{'request.course.id'}) { return ''; }
1817: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 1818: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 1819: $what.=':POST';
1.583 matthew 1820: # FIXME: Probably ought to escape things....
1.620 albertel 1821: foreach (keys %env) {
1.158 www 1822: if ($_=~/^form\.(.*)/) {
1.620 albertel 1823: $what.=':'.$1.'='.$env{$_};
1.158 www 1824: }
1.191 harris41 1825: }
1.583 matthew 1826: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
1827: # FIXME: We should not be depending on a form parameter that someone
1828: # editing lonsearchcat.pm might change in the future.
1.620 albertel 1829: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 1830: $what.= ':POST';
1831: # FIXME: Probably ought to escape things....
1832: foreach my $element ('courseexp','crsfulltext','crsrelated',
1833: 'crsdiscuss') {
1.620 albertel 1834: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 1835: }
1836: }
1.158 www 1837: }
1838: &courselog($what);
1.149 www 1839: }
1840:
1.185 www 1841: sub countacc {
1842: my $url=&declutter(shift);
1.458 matthew 1843: return if (! defined($url) || $url eq '');
1.620 albertel 1844: unless ($env{'request.course.id'}) { return ''; }
1845: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 1846: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 1847: $accesshash{$key}++;
1.185 www 1848: }
1.349 www 1849:
1.361 www 1850: sub linklog {
1851: my ($from,$to)=@_;
1852: $from=&declutter($from);
1853: $to=&declutter($to);
1854: $accesshash{$from.'___'.$to.'___comefrom'}=1;
1855: $accesshash{$to.'___'.$from.'___goto'}=1;
1856: }
1857:
1.349 www 1858: sub userrolelog {
1859: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 1860: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 1861: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 1862: ($trole=~/^ep/) || ($trole=~/^cr/) ||
1863: ($trole=~/^ta/)) {
1.350 www 1864: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
1865: $userrolehash
1866: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 1867: =$tend.':'.$tstart;
1.662 raeburn 1868: }
1869: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
1870: ($trole=~/^li/) || ($trole=~/^li/) ||
1871: ($trole=~/^au/) || ($trole=~/^dg/) ||
1872: ($trole=~/^sc/)) {
1873: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
1874: $domainrolehash
1875: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1876: = $tend.':'.$tstart;
1877: }
1.351 www 1878: }
1879:
1880: sub get_course_adv_roles {
1881: my $cid=shift;
1.620 albertel 1882: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 1883: my %coursehash=&coursedescription($cid);
1.470 www 1884: my %nothide=();
1885: foreach (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1886: $nothide{join(':',split(/[\@\:]/,$_))}=1;
1887: }
1.351 www 1888: my %returnhash=();
1889: my %dumphash=
1890: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
1891: my $now=time;
1892: foreach (keys %dumphash) {
1893: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1894: if (($tstart) && ($tstart<0)) { next; }
1895: if (($tend) && ($tend<$now)) { next; }
1896: if (($tstart) && ($now<$tstart)) { next; }
1897: my ($role,$username,$domain,$section)=split(/\:/,$_);
1.576 albertel 1898: if ($username eq '' || $domain eq '') { next; }
1.470 www 1899: if ((&privileged($username,$domain)) &&
1900: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 1901: if ($role eq 'cr') { next; }
1.351 www 1902: my $key=&plaintext($role);
1903: if ($section) { $key.=' (Sec/Grp '.$section.')'; }
1904: if ($returnhash{$key}) {
1905: $returnhash{$key}.=','.$username.':'.$domain;
1906: } else {
1907: $returnhash{$key}=$username.':'.$domain;
1908: }
1.400 www 1909: }
1910: return %returnhash;
1911: }
1912:
1913: sub get_my_roles {
1914: my ($uname,$udom)=@_;
1.620 albertel 1915: unless (defined($uname)) { $uname=$env{'user.name'}; }
1916: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.400 www 1917: my %dumphash=
1918: &dump('nohist_userroles',$udom,$uname);
1919: my %returnhash=();
1920: my $now=time;
1921: foreach (keys %dumphash) {
1922: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1923: if (($tstart) && ($tstart<0)) { next; }
1924: if (($tend) && ($tend<$now)) { next; }
1925: if (($tstart) && ($now<$tstart)) { next; }
1926: my ($role,$username,$domain,$section)=split(/\:/,$_);
1927: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
1.373 www 1928: }
1929: return %returnhash;
1.399 www 1930: }
1931:
1932: # ----------------------------------------------------- Frontpage Announcements
1933: #
1934: #
1935:
1936: sub postannounce {
1937: my ($server,$text)=@_;
1938: unless (&allowed('psa',$hostdom{$server})) { return 'refused'; }
1939: unless ($text=~/\w/) { $text=''; }
1940: return &reply('setannounce:'.&escape($text),$server);
1941: }
1942:
1943: sub getannounce {
1.448 albertel 1944:
1945: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 1946: my $announcement='';
1947: while (<$fh>) { $announcement .=$_; }
1.448 albertel 1948: close($fh);
1.399 www 1949: if ($announcement=~/\w/) {
1950: return
1951: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 1952: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 1953: } else {
1954: return '';
1955: }
1956: } else {
1957: return '';
1958: }
1.351 www 1959: }
1.353 www 1960:
1961: # ---------------------------------------------------------- Course ID routines
1962: # Deal with domain's nohist_courseid.db files
1963: #
1964:
1965: sub courseidput {
1966: my ($domain,$what,$coursehome)=@_;
1967: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
1968: }
1969:
1970: sub courseiddump {
1.791 raeburn 1971: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
1.353 www 1972: my %returnhash=();
1.355 www 1973: unless ($domfilter) { $domfilter=''; }
1.353 www 1974: foreach my $tryserver (keys %libserv) {
1.511 raeburn 1975: if ( ($hostidflag == 1 && grep/^$tryserver$/,@{$hostidref}) || (!defined($hostidflag)) ) {
1.506 raeburn 1976: if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
1977: foreach (
1978: split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
1.571 raeburn 1979: $sincefilter.':'.&escape($descfilter).':'.
1.791 raeburn 1980: &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
1.354 www 1981: $tryserver))) {
1.506 raeburn 1982: my ($key,$value)=split(/\=/,$_);
1983: if (($key) && ($value)) {
1.516 raeburn 1984: $returnhash{&unescape($key)}=$value;
1.506 raeburn 1985: }
1.353 www 1986: }
1987: }
1988: }
1989: }
1990: return %returnhash;
1991: }
1992:
1.658 raeburn 1993: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 1994:
1995: sub dcmailput {
1.685 raeburn 1996: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 1997: my $status = &Apache::lonnet::critical(
1.740 www 1998: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
1999: &escape($message),$server);
1.662 raeburn 2000: return $status;
2001: }
2002:
1.658 raeburn 2003: sub dcmaildump {
2004: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 2005: my %returnhash=();
2006: if (exists($domain_primary{$dom})) {
2007: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
2008: &escape($enddate).':';
2009: my @esc_senders=map { &escape($_)} @$senders;
2010: $cmd.=&escape(join('&',@esc_senders));
2011: foreach (split(/\&/,&reply($cmd,$domain_primary{$dom}))) {
2012: my ($key,$value) = split(/\=/,$_);
2013: if (($key) && ($value)) {
2014: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 2015: }
2016: }
2017: }
2018: return %returnhash;
2019: }
1.662 raeburn 2020: # ---------------------------------------------------------- Domain roles
2021:
2022: sub get_domain_roles {
2023: my ($dom,$roles,$startdate,$enddate)=@_;
2024: if (undef($startdate) || $startdate eq '') {
2025: $startdate = '.';
2026: }
2027: if (undef($enddate) || $enddate eq '') {
2028: $enddate = '.';
2029: }
2030: my $rolelist = join(':',@{$roles});
2031: my %personnel = ();
2032: foreach my $tryserver (keys(%libserv)) {
2033: if ($hostdom{$tryserver} eq $dom) {
2034: %{$personnel{$tryserver}}=();
2035: foreach (
2036: split(/\&/,&reply('domrolesdump:'.$dom.':'.
2037: &escape($startdate).':'.&escape($enddate).':'.
2038: &escape($rolelist), $tryserver))) {
2039: my($key,$value) = split(/\=/,$_);
2040: if (($key) && ($value)) {
2041: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
2042: }
2043: }
2044: }
2045: }
2046: return %personnel;
2047: }
1.658 raeburn 2048:
1.149 www 2049: # ----------------------------------------------------------- Check out an item
2050:
1.504 albertel 2051: sub get_first_access {
2052: my ($type,$argsymb)=@_;
1.790 albertel 2053: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2054: if ($argsymb) { $symb=$argsymb; }
2055: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2056: if ($type eq 'map') {
2057: $res=&symbread($map);
2058: } else {
2059: $res=$symb;
2060: }
2061: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
2062: return $times{"$courseid\0$res"};
1.504 albertel 2063: }
2064:
2065: sub set_first_access {
2066: my ($type)=@_;
1.790 albertel 2067: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2068: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2069: if ($type eq 'map') {
2070: $res=&symbread($map);
2071: } else {
2072: $res=$symb;
2073: }
2074: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 2075: if (!$firstaccess) {
1.588 albertel 2076: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 2077: }
2078: return 'already_set';
1.504 albertel 2079: }
2080:
1.149 www 2081: sub checkout {
2082: my ($symb,$tuname,$tudom,$tcrsid)=@_;
2083: my $now=time;
2084: my $lonhost=$perlvar{'lonHostID'};
2085: my $infostr=&escape(
1.234 www 2086: 'CHECKOUTTOKEN&'.
1.149 www 2087: $tuname.'&'.
2088: $tudom.'&'.
2089: $tcrsid.'&'.
2090: $symb.'&'.
2091: $now.'&'.$ENV{'REMOTE_ADDR'});
2092: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 2093: if ($token=~/^error\:/) {
1.672 albertel 2094: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2095: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
2096: "</font>");
2097: return '';
2098: }
2099:
1.149 www 2100: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
2101: $token=~tr/a-z/A-Z/;
2102:
1.153 www 2103: my %infohash=('resource.0.outtoken' => $token,
2104: 'resource.0.checkouttime' => $now,
2105: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 2106:
2107: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2108: return '';
1.151 www 2109: } else {
1.672 albertel 2110: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2111: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
2112: "</font>");
1.149 www 2113: }
2114:
2115: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2116: &escape('Checkout '.$infostr.' - '.
2117: $token)) ne 'ok') {
2118: return '';
1.151 www 2119: } else {
1.672 albertel 2120: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2121: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
2122: "</font>");
1.149 www 2123: }
1.151 www 2124: return $token;
1.149 www 2125: }
2126:
2127: # ------------------------------------------------------------ Check in an item
2128:
2129: sub checkin {
2130: my $token=shift;
1.150 www 2131: my $now=time;
2132: my ($ta,$tb,$lonhost)=split(/\*/,$token);
2133: $lonhost=~tr/A-Z/a-z/;
1.595 albertel 2134: my $dtoken=$ta.'_'.$hostname{$lonhost}.'_'.$tb;
1.150 www 2135: $dtoken=~s/\W/\_/g;
1.234 www 2136: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 2137: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
2138:
1.154 www 2139: unless (($tuname) && ($tudom)) {
2140: &logthis('Check in '.$token.' ('.$dtoken.') failed');
2141: return '';
2142: }
2143:
2144: unless (&allowed('mgr',$tcrsid)) {
2145: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 2146: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 2147: return '';
2148: }
2149:
1.153 www 2150: my %infohash=('resource.0.intoken' => $token,
2151: 'resource.0.checkintime' => $now,
2152: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 2153:
2154: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2155: return '';
2156: }
2157:
2158: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2159: &escape('Checkin - '.$token)) ne 'ok') {
2160: return '';
2161: }
2162:
2163: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 2164: }
2165:
2166: # --------------------------------------------- Set Expire Date for Spreadsheet
2167:
2168: sub expirespread {
2169: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 2170: my $cid=$env{'request.course.id'};
1.110 www 2171: if ($cid) {
2172: my $now=time;
2173: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 2174: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
2175: $env{'course.'.$cid.'.num'}.
1.110 www 2176: ':nohist_expirationdates:'.
2177: &escape($key).'='.$now,
1.620 albertel 2178: $env{'course.'.$cid.'.home'})
1.110 www 2179: }
2180: return 'ok';
1.14 www 2181: }
2182:
1.109 www 2183: # ----------------------------------------------------- Devalidate Spreadsheets
2184:
2185: sub devalidate {
1.325 www 2186: my ($symb,$uname,$udom)=@_;
1.620 albertel 2187: my $cid=$env{'request.course.id'};
1.109 www 2188: if ($cid) {
1.391 matthew 2189: # delete the stored spreadsheets for
2190: # - the student level sheet of this user in course's homespace
2191: # - the assessment level sheet for this resource
2192: # for this user in user's homespace
1.553 albertel 2193: # - current conditional state info
1.325 www 2194: my $key=$uname.':'.$udom.':';
1.109 www 2195: my $status=
1.299 matthew 2196: &del('nohist_calculatedsheets',
1.391 matthew 2197: [$key.'studentcalc:'],
1.620 albertel 2198: $env{'course.'.$cid.'.domain'},
2199: $env{'course.'.$cid.'.num'})
1.133 albertel 2200: .' '.
2201: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 2202: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 2203: unless ($status eq 'ok ok') {
2204: &logthis('Could not devalidate spreadsheet '.
1.325 www 2205: $uname.' at '.$udom.' for '.
1.109 www 2206: $symb.': '.$status);
1.133 albertel 2207: }
1.553 albertel 2208: &delenv('user.state.'.$cid);
1.109 www 2209: }
2210: }
2211:
1.265 albertel 2212: sub get_scalar {
2213: my ($string,$end) = @_;
2214: my $value;
2215: if ($$string =~ s/^([^&]*?)($end)/$2/) {
2216: $value = $1;
2217: } elsif ($$string =~ s/^([^&]*?)&//) {
2218: $value = $1;
2219: }
2220: return &unescape($value);
2221: }
2222:
2223: sub array2str {
2224: my (@array) = @_;
2225: my $result=&arrayref2str(\@array);
2226: $result=~s/^__ARRAY_REF__//;
2227: $result=~s/__END_ARRAY_REF__$//;
2228: return $result;
2229: }
2230:
1.204 albertel 2231: sub arrayref2str {
2232: my ($arrayref) = @_;
1.265 albertel 2233: my $result='__ARRAY_REF__';
1.204 albertel 2234: foreach my $elem (@$arrayref) {
1.265 albertel 2235: if(ref($elem) eq 'ARRAY') {
2236: $result.=&arrayref2str($elem).'&';
2237: } elsif(ref($elem) eq 'HASH') {
2238: $result.=&hashref2str($elem).'&';
2239: } elsif(ref($elem)) {
2240: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 2241: } else {
2242: $result.=&escape($elem).'&';
2243: }
2244: }
2245: $result=~s/\&$//;
1.265 albertel 2246: $result .= '__END_ARRAY_REF__';
1.204 albertel 2247: return $result;
2248: }
2249:
1.168 albertel 2250: sub hash2str {
1.204 albertel 2251: my (%hash) = @_;
2252: my $result=&hashref2str(\%hash);
1.265 albertel 2253: $result=~s/^__HASH_REF__//;
2254: $result=~s/__END_HASH_REF__$//;
1.204 albertel 2255: return $result;
2256: }
2257:
2258: sub hashref2str {
2259: my ($hashref)=@_;
1.265 albertel 2260: my $result='__HASH_REF__';
1.495 albertel 2261: foreach (sort(keys(%$hashref))) {
1.204 albertel 2262: if (ref($_) eq 'ARRAY') {
1.265 albertel 2263: $result.=&arrayref2str($_).'=';
1.204 albertel 2264: } elsif (ref($_) eq 'HASH') {
1.265 albertel 2265: $result.=&hashref2str($_).'=';
1.204 albertel 2266: } elsif (ref($_)) {
1.265 albertel 2267: $result.='=';
2268: #print("Got a ref of ".(ref($_))." skipping.");
1.204 albertel 2269: } else {
1.265 albertel 2270: if ($_) {$result.=&escape($_).'=';} else { last; }
1.204 albertel 2271: }
2272:
1.265 albertel 2273: if(ref($hashref->{$_}) eq 'ARRAY') {
2274: $result.=&arrayref2str($hashref->{$_}).'&';
2275: } elsif(ref($hashref->{$_}) eq 'HASH') {
2276: $result.=&hashref2str($hashref->{$_}).'&';
2277: } elsif(ref($hashref->{$_})) {
2278: $result.='&';
2279: #print("Got a ref of ".(ref($hashref->{$_}))." skipping.");
1.204 albertel 2280: } else {
1.265 albertel 2281: $result.=&escape($hashref->{$_}).'&';
1.204 albertel 2282: }
2283: }
1.168 albertel 2284: $result=~s/\&$//;
1.265 albertel 2285: $result .= '__END_HASH_REF__';
1.168 albertel 2286: return $result;
2287: }
2288:
2289: sub str2hash {
1.265 albertel 2290: my ($string)=@_;
2291: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
2292: return %$hash;
2293: }
2294:
2295: sub str2hashref {
1.168 albertel 2296: my ($string) = @_;
1.265 albertel 2297:
2298: my %hash;
2299:
2300: if($string !~ /^__HASH_REF__/) {
2301: if (! ($string eq '' || !defined($string))) {
2302: $hash{'error'}='Not hash reference';
2303: }
2304: return (\%hash, $string);
2305: }
2306:
2307: $string =~ s/^__HASH_REF__//;
2308:
2309: while($string !~ /^__END_HASH_REF__/) {
2310: #key
2311: my $key='';
2312: if($string =~ /^__HASH_REF__/) {
2313: ($key, $string)=&str2hashref($string);
2314: if(defined($key->{'error'})) {
2315: $hash{'error'}='Bad data';
2316: return (\%hash, $string);
2317: }
2318: } elsif($string =~ /^__ARRAY_REF__/) {
2319: ($key, $string)=&str2arrayref($string);
2320: if($key->[0] eq 'Array reference error') {
2321: $hash{'error'}='Bad data';
2322: return (\%hash, $string);
2323: }
2324: } else {
2325: $string =~ s/^(.*?)=//;
1.267 albertel 2326: $key=&unescape($1);
1.265 albertel 2327: }
2328: $string =~ s/^=//;
2329:
2330: #value
2331: my $value='';
2332: if($string =~ /^__HASH_REF__/) {
2333: ($value, $string)=&str2hashref($string);
2334: if(defined($value->{'error'})) {
2335: $hash{'error'}='Bad data';
2336: return (\%hash, $string);
2337: }
2338: } elsif($string =~ /^__ARRAY_REF__/) {
2339: ($value, $string)=&str2arrayref($string);
2340: if($value->[0] eq 'Array reference error') {
2341: $hash{'error'}='Bad data';
2342: return (\%hash, $string);
2343: }
2344: } else {
2345: $value=&get_scalar(\$string,'__END_HASH_REF__');
2346: }
2347: $string =~ s/^&//;
2348:
2349: $hash{$key}=$value;
1.204 albertel 2350: }
1.265 albertel 2351:
2352: $string =~ s/^__END_HASH_REF__//;
2353:
2354: return (\%hash, $string);
1.204 albertel 2355: }
2356:
2357: sub str2array {
1.265 albertel 2358: my ($string)=@_;
2359: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
2360: return @$array;
2361: }
2362:
2363: sub str2arrayref {
1.204 albertel 2364: my ($string) = @_;
1.265 albertel 2365: my @array;
2366:
2367: if($string !~ /^__ARRAY_REF__/) {
2368: if (! ($string eq '' || !defined($string))) {
2369: $array[0]='Array reference error';
2370: }
2371: return (\@array, $string);
2372: }
2373:
2374: $string =~ s/^__ARRAY_REF__//;
2375:
2376: while($string !~ /^__END_ARRAY_REF__/) {
2377: my $value='';
2378: if($string =~ /^__HASH_REF__/) {
2379: ($value, $string)=&str2hashref($string);
2380: if(defined($value->{'error'})) {
2381: $array[0] ='Array reference error';
2382: return (\@array, $string);
2383: }
2384: } elsif($string =~ /^__ARRAY_REF__/) {
2385: ($value, $string)=&str2arrayref($string);
2386: if($value->[0] eq 'Array reference error') {
2387: $array[0] ='Array reference error';
2388: return (\@array, $string);
2389: }
2390: } else {
2391: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
2392: }
2393: $string =~ s/^&//;
2394:
2395: push(@array, $value);
1.191 harris41 2396: }
1.265 albertel 2397:
2398: $string =~ s/^__END_ARRAY_REF__//;
2399:
2400: return (\@array, $string);
1.168 albertel 2401: }
2402:
1.167 albertel 2403: # -------------------------------------------------------------------Temp Store
2404:
1.168 albertel 2405: sub tmpreset {
2406: my ($symb,$namespace,$domain,$stuname) = @_;
2407: if (!$symb) {
2408: $symb=&symbread();
1.620 albertel 2409: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2410: }
2411: $symb=escape($symb);
2412:
1.620 albertel 2413: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 2414: $namespace=~s/\//\_/g;
2415: $namespace=~s/\W//g;
2416:
1.620 albertel 2417: if (!$domain) { $domain=$env{'user.domain'}; }
2418: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2419: if ($domain eq 'public' && $stuname eq 'public') {
2420: $stuname=$ENV{'REMOTE_ADDR'};
2421: }
1.168 albertel 2422: my $path=$perlvar{'lonDaemons'}.'/tmp';
2423: my %hash;
2424: if (tie(%hash,'GDBM_File',
2425: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2426: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2427: foreach my $key (keys %hash) {
1.180 albertel 2428: if ($key=~ /:$symb/) {
1.168 albertel 2429: delete($hash{$key});
2430: }
2431: }
2432: }
2433: }
2434:
1.167 albertel 2435: sub tmpstore {
1.168 albertel 2436: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2437:
2438: if (!$symb) {
2439: $symb=&symbread();
1.620 albertel 2440: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2441: }
2442: $symb=escape($symb);
2443:
2444: if (!$namespace) {
2445: # I don't think we would ever want to store this for a course.
2446: # it seems this will only be used if we don't have a course.
1.620 albertel 2447: #$namespace=$env{'request.course.id'};
1.168 albertel 2448: #if (!$namespace) {
1.620 albertel 2449: $namespace=$env{'request.state'};
1.168 albertel 2450: #}
2451: }
2452: $namespace=~s/\//\_/g;
2453: $namespace=~s/\W//g;
1.620 albertel 2454: if (!$domain) { $domain=$env{'user.domain'}; }
2455: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2456: if ($domain eq 'public' && $stuname eq 'public') {
2457: $stuname=$ENV{'REMOTE_ADDR'};
2458: }
1.168 albertel 2459: my $now=time;
2460: my %hash;
2461: my $path=$perlvar{'lonDaemons'}.'/tmp';
2462: if (tie(%hash,'GDBM_File',
2463: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2464: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2465: $hash{"version:$symb"}++;
2466: my $version=$hash{"version:$symb"};
2467: my $allkeys='';
2468: foreach my $key (keys(%$storehash)) {
2469: $allkeys.=$key.':';
1.591 albertel 2470: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 2471: }
2472: $hash{"$version:$symb:timestamp"}=$now;
2473: $allkeys.='timestamp';
2474: $hash{"$version:keys:$symb"}=$allkeys;
2475: if (untie(%hash)) {
2476: return 'ok';
2477: } else {
2478: return "error:$!";
2479: }
2480: } else {
2481: return "error:$!";
2482: }
2483: }
1.167 albertel 2484:
1.168 albertel 2485: # -----------------------------------------------------------------Temp Restore
1.167 albertel 2486:
1.168 albertel 2487: sub tmprestore {
2488: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 2489:
1.168 albertel 2490: if (!$symb) {
2491: $symb=&symbread();
1.620 albertel 2492: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2493: }
2494: $symb=escape($symb);
2495:
1.620 albertel 2496: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 2497:
1.620 albertel 2498: if (!$domain) { $domain=$env{'user.domain'}; }
2499: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2500: if ($domain eq 'public' && $stuname eq 'public') {
2501: $stuname=$ENV{'REMOTE_ADDR'};
2502: }
1.168 albertel 2503: my %returnhash;
2504: $namespace=~s/\//\_/g;
2505: $namespace=~s/\W//g;
2506: my %hash;
2507: my $path=$perlvar{'lonDaemons'}.'/tmp';
2508: if (tie(%hash,'GDBM_File',
2509: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2510: &GDBM_READER(),0640)) {
1.168 albertel 2511: my $version=$hash{"version:$symb"};
2512: $returnhash{'version'}=$version;
2513: my $scope;
2514: for ($scope=1;$scope<=$version;$scope++) {
2515: my $vkeys=$hash{"$scope:keys:$symb"};
2516: my @keys=split(/:/,$vkeys);
2517: my $key;
2518: $returnhash{"$scope:keys"}=$vkeys;
2519: foreach $key (@keys) {
1.591 albertel 2520: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
2521: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 2522: }
2523: }
1.168 albertel 2524: if (!(untie(%hash))) {
2525: return "error:$!";
2526: }
2527: } else {
2528: return "error:$!";
2529: }
2530: return %returnhash;
1.167 albertel 2531: }
2532:
1.9 www 2533: # ----------------------------------------------------------------------- Store
2534:
2535: sub store {
1.124 www 2536: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2537: my $home='';
2538:
1.168 albertel 2539: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2540:
1.213 www 2541: $symb=&symbclean($symb);
1.122 albertel 2542: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2543:
1.620 albertel 2544: if (!$domain) { $domain=$env{'user.domain'}; }
2545: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2546:
2547: &devalidate($symb,$stuname,$domain);
1.109 www 2548:
2549: $symb=escape($symb);
1.187 www 2550: if (!$namespace) {
1.620 albertel 2551: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2552: return '';
2553: }
2554: }
1.620 albertel 2555: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2556:
2557: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2558: $$storehash{'host'}=$perlvar{'lonHostID'};
2559:
1.12 www 2560: my $namevalue='';
1.191 harris41 2561: foreach (keys %$storehash) {
1.591 albertel 2562: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2563: }
1.12 www 2564: $namevalue=~s/\&$//;
1.187 www 2565: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 2566: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 2567: }
2568:
1.47 www 2569: # -------------------------------------------------------------- Critical Store
2570:
2571: sub cstore {
1.124 www 2572: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2573: my $home='';
2574:
1.168 albertel 2575: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2576:
1.213 www 2577: $symb=&symbclean($symb);
1.122 albertel 2578: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2579:
1.620 albertel 2580: if (!$domain) { $domain=$env{'user.domain'}; }
2581: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2582:
2583: &devalidate($symb,$stuname,$domain);
1.109 www 2584:
2585: $symb=escape($symb);
1.187 www 2586: if (!$namespace) {
1.620 albertel 2587: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2588: return '';
2589: }
2590: }
1.620 albertel 2591: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2592:
2593: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2594: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 2595:
1.47 www 2596: my $namevalue='';
1.191 harris41 2597: foreach (keys %$storehash) {
1.591 albertel 2598: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2599: }
1.47 www 2600: $namevalue=~s/\&$//;
1.187 www 2601: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 2602: return critical
2603: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 2604: }
2605:
1.9 www 2606: # --------------------------------------------------------------------- Restore
2607:
2608: sub restore {
1.124 www 2609: my ($symb,$namespace,$domain,$stuname) = @_;
2610: my $home='';
2611:
1.168 albertel 2612: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2613:
1.122 albertel 2614: if (!$symb) {
2615: unless ($symb=escape(&symbread())) { return ''; }
2616: } else {
1.213 www 2617: $symb=&escape(&symbclean($symb));
1.122 albertel 2618: }
1.188 www 2619: if (!$namespace) {
1.620 albertel 2620: unless ($namespace=$env{'request.course.id'}) {
1.188 www 2621: return '';
2622: }
2623: }
1.620 albertel 2624: if (!$domain) { $domain=$env{'user.domain'}; }
2625: if (!$stuname) { $stuname=$env{'user.name'}; }
2626: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 2627: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
2628:
1.12 www 2629: my %returnhash=();
1.191 harris41 2630: foreach (split(/\&/,$answer)) {
1.12 www 2631: my ($name,$value)=split(/\=/,$_);
1.591 albertel 2632: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 2633: }
1.75 www 2634: my $version;
2635: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.191 harris41 2636: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1.75 www 2637: $returnhash{$_}=$returnhash{$version.':'.$_};
1.191 harris41 2638: }
1.75 www 2639: }
1.13 www 2640: return %returnhash;
1.34 www 2641: }
2642:
2643: # ---------------------------------------------------------- Course Description
2644:
2645: sub coursedescription {
1.731 albertel 2646: my ($courseid,$args)=@_;
1.34 www 2647: $courseid=~s/^\///;
1.49 www 2648: $courseid=~s/\_/\//g;
1.34 www 2649: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 2650: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 2651: my $normalid=$cdomain.'_'.$cnum;
2652: # need to always cache even if we get errors otherwise we keep
2653: # trying and trying and trying to get the course description.
2654: my %envhash=();
2655: my %returnhash=();
1.731 albertel 2656:
2657: my $expiretime=600;
2658: if ($env{'request.course.id'} eq $normalid) {
2659: $expiretime=120;
2660: }
2661:
2662: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
2663: if (!$args->{'freshen_cache'}
2664: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
2665: foreach my $key (keys(%env)) {
2666: next if ($key !~ /^\Q$prefix\E(.*)/);
2667: my ($setting) = $1;
2668: $returnhash{$setting} = $env{$key};
2669: }
2670: return %returnhash;
2671: }
2672:
2673: # get the data agin
2674: if (!$args->{'one_time'}) {
2675: $envhash{'course.'.$normalid.'.last_cache'}=time;
2676: }
1.34 www 2677: if ($chome ne 'no_host') {
1.302 albertel 2678: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 2679: if (!exists($returnhash{'con_lost'})) {
2680: $returnhash{'home'}= $chome;
2681: $returnhash{'domain'} = $cdomain;
2682: $returnhash{'num'} = $cnum;
1.741 raeburn 2683: if (!defined($returnhash{'type'})) {
2684: $returnhash{'type'} = 'Course';
2685: }
1.130 albertel 2686: while (my ($name,$value) = each %returnhash) {
1.53 www 2687: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 2688: }
1.270 www 2689: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 2690: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 2691: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 2692: $envhash{'course.'.$normalid.'.home'}=$chome;
2693: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
2694: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 2695: }
2696: }
1.731 albertel 2697: if (!$args->{'one_time'}) {
2698: &appenv(%envhash);
2699: }
1.302 albertel 2700: return %returnhash;
1.461 www 2701: }
2702:
2703: # -------------------------------------------------See if a user is privileged
2704:
2705: sub privileged {
2706: my ($username,$domain)=@_;
2707: my $rolesdump=&reply("dump:$domain:$username:roles",
2708: &homeserver($username,$domain));
2709: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
2710: my $now=time;
2711: if ($rolesdump ne '') {
2712: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2713: if ($_!~/^rolesdef_/) {
1.461 www 2714: my ($area,$role)=split(/=/,$_);
2715: $area=~s/\_\w\w$//;
2716: my ($trole,$tend,$tstart)=split(/_/,$role);
2717: if (($trole eq 'dc') || ($trole eq 'su')) {
2718: my $active=1;
2719: if ($tend) {
2720: if ($tend<$now) { $active=0; }
2721: }
2722: if ($tstart) {
2723: if ($tstart>$now) { $active=0; }
2724: }
2725: if ($active) { return 1; }
2726: }
2727: }
2728: }
2729: }
2730: return 0;
1.9 www 2731: }
1.1 albertel 2732:
1.103 harris41 2733: # -------------------------------------------------------- Get user privileges
1.11 www 2734:
2735: sub rolesinit {
2736: my ($domain,$username,$authhost)=@_;
2737: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 2738: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 2739: my %allroles=();
1.678 raeburn 2740: my %allgroups=();
1.11 www 2741: my $now=time;
1.743 albertel 2742: my %userroles = ('user.login.time' => $now);
1.678 raeburn 2743: my $group_privs;
1.11 www 2744:
2745: if ($rolesdump ne '') {
1.191 harris41 2746: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2747: if ($_!~/^rolesdef_/) {
1.11 www 2748: my ($area,$role)=split(/=/,$_);
1.587 albertel 2749: $area=~s/\_\w\w$//;
1.678 raeburn 2750: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 2751: if ($role=~/^cr/) {
1.655 albertel 2752: if ($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|) {
2753: ($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
2754: ($tend,$tstart)=split('_',$trest);
2755: } else {
2756: $trole=$role;
2757: }
1.678 raeburn 2758: } elsif ($role =~ m|^gr/|) {
2759: ($trole,$tend,$tstart) = split(/_/,$role);
2760: ($trole,$group_privs) = split(/\//,$trole);
2761: $group_privs = &unescape($group_privs);
1.587 albertel 2762: } else {
2763: ($trole,$tend,$tstart)=split(/_/,$role);
2764: }
1.743 albertel 2765: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
2766: $username);
2767: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 2768: if (($tend!=0) && ($tend<$now)) { $trole=''; }
2769: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 2770: if (($area ne '') && ($trole ne '')) {
1.347 albertel 2771: my $spec=$trole.'.'.$area;
2772: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2773: if ($trole =~ /^cr\//) {
1.567 raeburn 2774: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 2775: } elsif ($trole eq 'gr') {
2776: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 2777: } else {
1.567 raeburn 2778: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 2779: }
1.12 www 2780: }
1.662 raeburn 2781: }
1.191 harris41 2782: }
1.743 albertel 2783: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
2784: $userroles{'user.adv'} = $adv;
2785: $userroles{'user.author'} = $author;
1.620 albertel 2786: $env{'user.adv'}=$adv;
1.11 www 2787: }
1.743 albertel 2788: return \%userroles;
1.11 www 2789: }
2790:
1.567 raeburn 2791: sub set_arearole {
2792: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
2793: # log the associated role with the area
2794: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 2795: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 2796: }
2797:
2798: sub custom_roleprivs {
2799: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
2800: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
2801: my $homsvr=homeserver($rauthor,$rdomain);
2802: if ($hostname{$homsvr} ne '') {
2803: my ($rdummy,$roledef)=
2804: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
2805: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2806: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
2807: if (defined($syspriv)) {
2808: $$allroles{'cm./'}.=':'.$syspriv;
2809: $$allroles{$spec.'./'}.=':'.$syspriv;
2810: }
2811: if ($tdomain ne '') {
2812: if (defined($dompriv)) {
2813: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
2814: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
2815: }
2816: if (($trest ne '') && (defined($coursepriv))) {
2817: $$allroles{'cm.'.$area}.=':'.$coursepriv;
2818: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
2819: }
2820: }
2821: }
2822: }
2823: }
2824:
1.678 raeburn 2825: sub group_roleprivs {
2826: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
2827: my $access = 1;
2828: my $now = time;
2829: if (($tend!=0) && ($tend<$now)) { $access = 0; }
2830: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
2831: if ($access) {
2832: my ($course,$group) = ($area =~ m|(/\w+/\w+)/([^/]+)$|);
2833: $$allgroups{$course}{$group} .=':'.$group_privs;
2834: }
2835: }
1.567 raeburn 2836:
2837: sub standard_roleprivs {
2838: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
2839: if (defined($pr{$trole.':s'})) {
2840: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
2841: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
2842: }
2843: if ($tdomain ne '') {
2844: if (defined($pr{$trole.':d'})) {
2845: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2846: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2847: }
2848: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
2849: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
2850: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
2851: }
2852: }
2853: }
2854:
2855: sub set_userprivs {
1.678 raeburn 2856: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 2857: my $author=0;
2858: my $adv=0;
1.678 raeburn 2859: my %grouproles = ();
2860: if (keys(%{$allgroups}) > 0) {
2861: foreach my $role (keys %{$allroles}) {
1.681 raeburn 2862: my ($trole,$area,$sec,$extendedarea);
1.771 raeburn 2863: if ($role =~ m-^(\w+|cr/\w+/\w+/\w+)\.(/\w+/\w+)(/?\w*)-) {
1.678 raeburn 2864: $trole = $1;
2865: $area = $2;
1.681 raeburn 2866: $sec = $3;
2867: $extendedarea = $area.$sec;
2868: if (exists($$allgroups{$area})) {
2869: foreach my $group (keys(%{$$allgroups{$area}})) {
2870: my $spec = $trole.'.'.$extendedarea;
2871: $grouproles{$spec.'.'.$area.'/'.$group} =
2872: $$allgroups{$area}{$group};
1.678 raeburn 2873: }
2874: }
2875: }
2876: }
2877: }
2878: foreach (keys(%grouproles)) {
2879: $$allroles{$_} = $grouproles{$_};
2880: }
1.567 raeburn 2881: foreach (keys %{$allroles}) {
2882: my %thesepriv=();
2883: if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
2884: foreach (split(/:/,$$allroles{$_})) {
2885: if ($_ ne '') {
2886: my ($privilege,$restrictions)=split(/&/,$_);
2887: if ($restrictions eq '') {
2888: $thesepriv{$privilege}='F';
2889: } elsif ($thesepriv{$privilege} ne 'F') {
2890: $thesepriv{$privilege}.=$restrictions;
2891: }
2892: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
2893: }
2894: }
2895: my $thesestr='';
2896: foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; }
1.743 albertel 2897: $userroles->{'user.priv.'.$_} = $thesestr;
1.567 raeburn 2898: }
2899: return ($author,$adv);
2900: }
2901:
1.12 www 2902: # --------------------------------------------------------------- get interface
2903:
2904: sub get {
1.131 albertel 2905: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 2906: my $items='';
1.191 harris41 2907: foreach (@$storearr) {
1.12 www 2908: $items.=escape($_).'&';
1.191 harris41 2909: }
1.12 www 2910: $items=~s/\&$//;
1.620 albertel 2911: if (!$udomain) { $udomain=$env{'user.domain'}; }
2912: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 2913: my $uhome=&homeserver($uname,$udomain);
2914:
1.133 albertel 2915: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2916: my @pairs=split(/\&/,$rep);
1.273 albertel 2917: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
2918: return @pairs;
2919: }
1.15 www 2920: my %returnhash=();
1.42 www 2921: my $i=0;
1.191 harris41 2922: foreach (@$storearr) {
1.557 albertel 2923: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 2924: $i++;
1.191 harris41 2925: }
1.15 www 2926: return %returnhash;
1.27 www 2927: }
2928:
2929: # --------------------------------------------------------------- del interface
2930:
2931: sub del {
1.133 albertel 2932: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 2933: my $items='';
1.191 harris41 2934: foreach (@$storearr) {
1.27 www 2935: $items.=escape($_).'&';
1.191 harris41 2936: }
1.27 www 2937: $items=~s/\&$//;
1.620 albertel 2938: if (!$udomain) { $udomain=$env{'user.domain'}; }
2939: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 2940: my $uhome=&homeserver($uname,$udomain);
2941:
2942: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2943: }
2944:
2945: # -------------------------------------------------------------- dump interface
2946:
2947: sub dump {
1.755 albertel 2948: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
2949: if (!$udomain) { $udomain=$env{'user.domain'}; }
2950: if (!$uname) { $uname=$env{'user.name'}; }
2951: my $uhome=&homeserver($uname,$udomain);
2952: if ($regexp) {
2953: $regexp=&escape($regexp);
2954: } else {
2955: $regexp='.';
2956: }
2957: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
2958: my @pairs=split(/\&/,$rep);
2959: my %returnhash=();
2960: foreach my $item (@pairs) {
2961: my ($key,$value)=split(/=/,$item,2);
2962: $key = &unescape($key);
2963: next if ($key =~ /^error: 2 /);
2964: $returnhash{$key}=&thaw_unescape($value);
2965: }
2966: return %returnhash;
1.407 www 2967: }
2968:
1.717 albertel 2969: # --------------------------------------------------------- dumpstore interface
2970:
2971: sub dumpstore {
2972: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
2973: return &dump($namespace,$udomain,$uname,$regexp,$range);
2974: }
2975:
1.407 www 2976: # -------------------------------------------------------------- keys interface
2977:
2978: sub getkeys {
2979: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 2980: if (!$udomain) { $udomain=$env{'user.domain'}; }
2981: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 2982: my $uhome=&homeserver($uname,$udomain);
2983: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
2984: my @keyarray=();
2985: foreach (split(/\&/,$rep)) {
2986: push (@keyarray,&unescape($_));
2987: }
2988: return @keyarray;
1.318 matthew 2989: }
2990:
1.319 matthew 2991: # --------------------------------------------------------------- currentdump
2992: sub currentdump {
1.328 matthew 2993: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 2994: $courseid = $env{'request.course.id'} if (! defined($courseid));
2995: $sdom = $env{'user.domain'} if (! defined($sdom));
2996: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 2997: my $uhome = &homeserver($sname,$sdom);
2998: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 2999: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 3000: #
1.318 matthew 3001: my %returnhash=();
1.319 matthew 3002: #
3003: if ($rep eq "unknown_cmd") {
3004: # an old lond will not know currentdump
3005: # Do a dump and make it look like a currentdump
1.326 matthew 3006: my @tmp = &dump($courseid,$sdom,$sname,'.');
1.319 matthew 3007: return if ($tmp[0] =~ /^(error:|no_such_host)/);
3008: my %hash = @tmp;
3009: @tmp=();
1.424 matthew 3010: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 3011: } else {
3012: my @pairs=split(/\&/,$rep);
3013: foreach (@pairs) {
3014: my ($key,$value)=split(/=/,$_);
3015: my ($symb,$param) = split(/:/,$key);
3016: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 3017: &thaw_unescape($value);
1.319 matthew 3018: }
1.191 harris41 3019: }
1.12 www 3020: return %returnhash;
1.424 matthew 3021: }
3022:
3023: sub convert_dump_to_currentdump{
3024: my %hash = %{shift()};
3025: my %returnhash;
3026: # Code ripped from lond, essentially. The only difference
3027: # here is the unescaping done by lonnet::dump(). Conceivably
3028: # we might run in to problems with parameter names =~ /^v\./
3029: while (my ($key,$value) = each(%hash)) {
3030: my ($v,$symb,$param) = split(/:/,$key);
3031: next if ($v eq 'version' || $symb eq 'keys');
3032: next if (exists($returnhash{$symb}) &&
3033: exists($returnhash{$symb}->{$param}) &&
3034: $returnhash{$symb}->{'v.'.$param} > $v);
3035: $returnhash{$symb}->{$param}=$value;
3036: $returnhash{$symb}->{'v.'.$param}=$v;
3037: }
3038: #
3039: # Remove all of the keys in the hashes which keep track of
3040: # the version of the parameter.
3041: while (my ($symb,$param_hash) = each(%returnhash)) {
3042: # use a foreach because we are going to delete from the hash.
3043: foreach my $key (keys(%$param_hash)) {
3044: delete($param_hash->{$key}) if ($key =~ /^v\./);
3045: }
3046: }
3047: return \%returnhash;
1.12 www 3048: }
3049:
1.627 albertel 3050: # ------------------------------------------------------ critical inc interface
3051:
3052: sub cinc {
3053: return &inc(@_,'critical');
3054: }
3055:
1.449 matthew 3056: # --------------------------------------------------------------- inc interface
3057:
3058: sub inc {
1.627 albertel 3059: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 3060: if (!$udomain) { $udomain=$env{'user.domain'}; }
3061: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 3062: my $uhome=&homeserver($uname,$udomain);
3063: my $items='';
3064: if (! ref($store)) {
3065: # got a single value, so use that instead
3066: $items = &escape($store).'=&';
3067: } elsif (ref($store) eq 'SCALAR') {
3068: $items = &escape($$store).'=&';
3069: } elsif (ref($store) eq 'ARRAY') {
3070: $items = join('=&',map {&escape($_);} @{$store});
3071: } elsif (ref($store) eq 'HASH') {
3072: while (my($key,$value) = each(%{$store})) {
3073: $items.= &escape($key).'='.&escape($value).'&';
3074: }
3075: }
3076: $items=~s/\&$//;
1.627 albertel 3077: if ($critical) {
3078: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
3079: } else {
3080: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
3081: }
1.449 matthew 3082: }
3083:
1.12 www 3084: # --------------------------------------------------------------- put interface
3085:
3086: sub put {
1.134 albertel 3087: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3088: if (!$udomain) { $udomain=$env{'user.domain'}; }
3089: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3090: my $uhome=&homeserver($uname,$udomain);
1.12 www 3091: my $items='';
1.191 harris41 3092: foreach (keys %$storehash) {
1.557 albertel 3093: $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 3094: }
1.12 www 3095: $items=~s/\&$//;
1.134 albertel 3096: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 3097: }
3098:
1.631 albertel 3099: # ------------------------------------------------------------ newput interface
3100:
3101: sub newput {
3102: my ($namespace,$storehash,$udomain,$uname)=@_;
3103: if (!$udomain) { $udomain=$env{'user.domain'}; }
3104: if (!$uname) { $uname=$env{'user.name'}; }
3105: my $uhome=&homeserver($uname,$udomain);
3106: my $items='';
3107: foreach my $key (keys(%$storehash)) {
3108: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
3109: }
3110: $items=~s/\&$//;
3111: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
3112: }
3113:
3114: # --------------------------------------------------------- putstore interface
3115:
1.524 raeburn 3116: sub putstore {
1.715 albertel 3117: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 3118: if (!$udomain) { $udomain=$env{'user.domain'}; }
3119: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 3120: my $uhome=&homeserver($uname,$udomain);
3121: my $items='';
1.715 albertel 3122: foreach my $key (keys(%$storehash)) {
3123: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 3124: }
1.715 albertel 3125: $items=~s/\&$//;
1.716 albertel 3126: my $esc_symb=&escape($symb);
3127: my $esc_v=&escape($version);
1.715 albertel 3128: my $reply =
1.716 albertel 3129: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 3130: $uhome);
3131: if ($reply eq 'unknown_cmd') {
1.716 albertel 3132: # gfall back to way things use to be done
1.715 albertel 3133: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
3134: $uname);
1.524 raeburn 3135: }
1.715 albertel 3136: return $reply;
3137: }
3138:
3139: sub old_putstore {
1.716 albertel 3140: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
3141: if (!$udomain) { $udomain=$env{'user.domain'}; }
3142: if (!$uname) { $uname=$env{'user.name'}; }
3143: my $uhome=&homeserver($uname,$udomain);
3144: my %newstorehash;
3145: foreach (keys %$storehash) {
3146: my $key = $version.':'.&escape($symb).':'.$_;
3147: $newstorehash{$key} = $storehash->{$_};
3148: }
3149: my $items='';
3150: my %allitems = ();
3151: foreach (keys %newstorehash) {
3152: if ($_ =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
3153: my $key = $1.':keys:'.$2;
3154: $allitems{$key} .= $3.':';
3155: }
3156: $items.=$_.'='.&freeze_escape($newstorehash{$_}).'&';
3157: }
3158: foreach (keys %allitems) {
3159: $allitems{$_} =~ s/\:$//;
3160: $items.= $_.'='.$allitems{$_}.'&';
3161: }
3162: $items=~s/\&$//;
3163: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 3164: }
3165:
1.47 www 3166: # ------------------------------------------------------ critical put interface
3167:
3168: sub cput {
1.134 albertel 3169: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3170: if (!$udomain) { $udomain=$env{'user.domain'}; }
3171: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3172: my $uhome=&homeserver($uname,$udomain);
1.47 www 3173: my $items='';
1.191 harris41 3174: foreach (keys %$storehash) {
1.715 albertel 3175: $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 3176: }
1.47 www 3177: $items=~s/\&$//;
1.134 albertel 3178: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3179: }
3180:
3181: # -------------------------------------------------------------- eget interface
3182:
3183: sub eget {
1.133 albertel 3184: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3185: my $items='';
1.191 harris41 3186: foreach (@$storearr) {
1.12 www 3187: $items.=escape($_).'&';
1.191 harris41 3188: }
1.12 www 3189: $items=~s/\&$//;
1.620 albertel 3190: if (!$udomain) { $udomain=$env{'user.domain'}; }
3191: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3192: my $uhome=&homeserver($uname,$udomain);
3193: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3194: my @pairs=split(/\&/,$rep);
3195: my %returnhash=();
1.42 www 3196: my $i=0;
1.191 harris41 3197: foreach (@$storearr) {
1.557 albertel 3198: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 3199: $i++;
1.191 harris41 3200: }
1.12 www 3201: return %returnhash;
3202: }
3203:
1.667 albertel 3204: # ------------------------------------------------------------ tmpput interface
3205: sub tmpput {
3206: my ($storehash,$server)=@_;
3207: my $items='';
3208: foreach (keys(%$storehash)) {
3209: $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
3210: }
3211: $items=~s/\&$//;
3212: return &reply("tmpput:$items",$server);
3213: }
3214:
3215: # ------------------------------------------------------------ tmpget interface
3216: sub tmpget {
1.688 albertel 3217: my ($token,$server)=@_;
3218: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3219: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 3220: my %returnhash;
3221: foreach my $item (split(/\&/,$rep)) {
3222: my ($key,$value)=split(/=/,$item);
3223: $returnhash{&unescape($key)}=&thaw_unescape($value);
3224: }
3225: return %returnhash;
3226: }
3227:
1.688 albertel 3228: # ------------------------------------------------------------ tmpget interface
3229: sub tmpdel {
3230: my ($token,$server)=@_;
3231: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3232: return &reply("tmpdel:$token",$server);
3233: }
3234:
1.765 albertel 3235: # -------------------------------------------------- portfolio access checking
3236:
3237: sub portfolio_access {
1.766 albertel 3238: my ($requrl) = @_;
1.765 albertel 3239: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
3240: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
3241: if ($result eq 'ok') {
1.766 albertel 3242: return 'F';
1.765 albertel 3243: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 3244: return 'A';
1.765 albertel 3245: }
1.766 albertel 3246: return '';
1.765 albertel 3247: }
3248:
3249: sub get_portfolio_access {
1.767 albertel 3250: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
3251:
3252: if (!ref($access_hash)) {
3253: my $current_perms = &get_portfile_permissions($udom,$unum);
3254: my %access_controls = &get_access_controls($current_perms,$group,
3255: $file_name);
3256: $access_hash = $access_controls{$file_name};
3257: }
3258:
1.765 albertel 3259: my ($public,$guest,@domains,@users,@courses,@groups);
3260: my $now = time;
3261: if (ref($access_hash) eq 'HASH') {
3262: foreach my $key (keys(%{$access_hash})) {
3263: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
3264: if ($start > $now) {
3265: next;
3266: }
3267: if ($end && $end<$now) {
3268: next;
3269: }
3270: if ($scope eq 'public') {
3271: $public = $key;
3272: last;
3273: } elsif ($scope eq 'guest') {
3274: $guest = $key;
3275: } elsif ($scope eq 'domains') {
3276: push(@domains,$key);
3277: } elsif ($scope eq 'users') {
3278: push(@users,$key);
3279: } elsif ($scope eq 'course') {
3280: push(@courses,$key);
3281: } elsif ($scope eq 'group') {
3282: push(@groups,$key);
3283: }
3284: }
3285: if ($public) {
3286: return 'ok';
3287: }
3288: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3289: if ($guest) {
3290: return $guest;
3291: }
3292: } else {
3293: if (@domains > 0) {
3294: foreach my $domkey (@domains) {
3295: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
3296: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
3297: return 'ok';
3298: }
3299: }
3300: }
3301: }
3302: if (@users > 0) {
3303: foreach my $userkey (@users) {
3304: if (exists($access_hash->{$userkey}{'users'}{$env{'user.name'}.':'.$env{'user.domain'}})) {
3305: return 'ok';
3306: }
3307: }
3308: }
3309: my %roleshash;
3310: my @courses_and_groups = @courses;
3311: push(@courses_and_groups,@groups);
3312: if (@courses_and_groups > 0) {
3313: my (%allgroups,%allroles);
3314: my ($start,$end,$role,$sec,$group);
3315: foreach my $envkey (%env) {
3316: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./([^/]+)/([^/]+)/?([^/]*)$-) {
3317: my $cid = $2.'_'.$3;
3318: if ($1 eq 'gr') {
3319: $group = $4;
3320: $allgroups{$cid}{$group} = $env{$envkey};
3321: } else {
3322: if ($4 eq '') {
3323: $sec = 'none';
3324: } else {
3325: $sec = $4;
3326: }
3327: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3328: }
3329: } elsif ($envkey =~ m-^user\.role\./cr/(\w+/\w+/\w*)./([^/]+)/([^/]+)/?([^/]*)$-) {
3330: my $cid = $2.'_'.$3;
3331: if ($4 eq '') {
3332: $sec = 'none';
3333: } else {
3334: $sec = $4;
3335: }
3336: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3337: }
3338: }
3339: if (keys(%allroles) == 0) {
3340: return;
3341: }
3342: foreach my $key (@courses_and_groups) {
3343: my %content = %{$$access_hash{$key}};
3344: my $cnum = $content{'number'};
3345: my $cdom = $content{'domain'};
3346: my $cid = $cdom.'_'.$cnum;
3347: if (!exists($allroles{$cid})) {
3348: next;
3349: }
3350: foreach my $role_id (keys(%{$content{'roles'}})) {
3351: my @sections = @{$content{'roles'}{$role_id}{'section'}};
3352: my @groups = @{$content{'roles'}{$role_id}{'group'}};
3353: my @status = @{$content{'roles'}{$role_id}{'access'}};
3354: my @roles = @{$content{'roles'}{$role_id}{'role'}};
3355: foreach my $role (keys(%{$allroles{$cid}})) {
3356: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
3357: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
3358: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
3359: if (grep/^all$/,@sections) {
3360: return 'ok';
3361: } else {
3362: if (grep/^$sec$/,@sections) {
3363: return 'ok';
3364: }
3365: }
3366: }
3367: }
3368: if (keys(%{$allgroups{$cid}}) == 0) {
3369: if (grep/^none$/,@groups) {
3370: return 'ok';
3371: }
3372: } else {
3373: if (grep/^all$/,@groups) {
3374: return 'ok';
3375: }
3376: foreach my $group (keys(%{$allgroups{$cid}})) {
3377: if (grep/^$group$/,@groups) {
3378: return 'ok';
3379: }
3380: }
3381: }
3382: }
3383: }
3384: }
3385: }
3386: }
3387: if ($guest) {
3388: return $guest;
3389: }
3390: }
3391: }
3392: return;
3393: }
3394:
3395: sub course_group_datechecker {
3396: my ($dates,$now,$status) = @_;
3397: my ($start,$end) = split(/\./,$dates);
3398: if (!$start && !$end) {
3399: return 'ok';
3400: }
3401: if (grep/^active$/,@{$status}) {
3402: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
3403: return 'ok';
3404: }
3405: }
3406: if (grep/^previous$/,@{$status}) {
3407: if ($end > $now ) {
3408: return 'ok';
3409: }
3410: }
3411: if (grep/^future$/,@{$status}) {
3412: if ($start > $now) {
3413: return 'ok';
3414: }
3415: }
3416: return;
3417: }
3418:
3419: sub parse_portfolio_url {
3420: my ($url) = @_;
3421:
3422: my ($type,$udom,$unum,$group,$file_name);
3423:
3424: if ($url =~ m-^/*uploaded/([^/]+)/([^/]+)/portfolio(/.+)$-) {
3425: $type = 1;
3426: $udom = $1;
3427: $unum = $2;
3428: $file_name = $3;
3429: } elsif ($url =~ m-^/*uploaded/([^/]+)/([^/]+)/groups/([^/]+)/portfolio/(.+)$-) {
3430: $type = 2;
3431: $udom = $1;
3432: $unum = $2;
3433: $group = $3;
3434: $file_name = $3.'/'.$4;
3435: }
3436: if (wantarray) {
3437: return ($type,$udom,$unum,$file_name,$group);
3438: }
3439: return $type;
3440: }
3441:
3442: sub is_portfolio_url {
3443: my ($url) = @_;
3444: return scalar(&parse_portfolio_url($url));
3445: }
3446:
1.341 www 3447: # ---------------------------------------------- Custom access rule evaluation
3448:
3449: sub customaccess {
3450: my ($priv,$uri)=@_;
1.620 albertel 3451: my ($urole,$urealm)=split(/\./,$env{'request.role'});
1.343 www 3452: $urealm=~s/^\W//;
3453: my ($udom,$ucrs,$usec)=split(/\//,$urealm);
1.341 www 3454: my $access=0;
3455: foreach (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.342 www 3456: my ($effect,$realm,$role)=split(/\:/,$_);
1.343 www 3457: if ($role) {
3458: if ($role ne $urole) { next; }
3459: }
3460: foreach (split(/\s*\,\s*/,$realm)) {
3461: my ($tdom,$tcrs,$tsec)=split(/\_/,$_);
3462: if ($tdom) {
3463: if ($tdom ne $udom) { next; }
3464: }
3465: if ($tcrs) {
3466: if ($tcrs ne $ucrs) { next; }
3467: }
3468: if ($tsec) {
3469: if ($tsec ne $usec) { next; }
3470: }
3471: $access=($effect eq 'allow');
3472: last;
1.342 www 3473: }
1.402 bowersj2 3474: if ($realm eq '' && $role eq '') {
3475: $access=($effect eq 'allow');
3476: }
1.341 www 3477: }
3478: return $access;
3479: }
3480:
1.103 harris41 3481: # ------------------------------------------------- Check for a user privilege
1.12 www 3482:
3483: sub allowed {
1.579 albertel 3484: my ($priv,$uri,$symb)=@_;
1.705 albertel 3485: my $ver_orguri=$uri;
1.439 www 3486: $uri=&deversion($uri);
1.152 www 3487: my $orguri=$uri;
1.52 www 3488: $uri=&declutter($uri);
1.545 banghart 3489:
1.620 albertel 3490: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 3491: # Free bre access to adm and meta resources
1.775 albertel 3492: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 3493: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
3494: && ($priv eq 'bre')) {
1.14 www 3495: return 'F';
1.159 www 3496: }
3497:
1.545 banghart 3498: # Free bre access to user's own portfolio contents
1.714 raeburn 3499: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 3500: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 3501: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.545 banghart 3502: return 'F';
3503: }
3504:
1.762 raeburn 3505: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 3506: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
3507: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
3508: if (exists($env{'request.course.id'})) {
3509: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3510: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3511: if (($domain eq $cdom) && ($name eq $cnum)) {
3512: my $courseprivid=$env{'request.course.id'};
3513: $courseprivid=~s/\_/\//;
3514: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
3515: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
3516: return $1;
1.762 raeburn 3517: } else {
3518: if ($env{'request.course.sec'}) {
3519: $courseprivid.='/'.$env{'request.course.sec'};
3520: }
3521: if ($env{'user.priv.'.$env{'request.role'}.'./'.
3522: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
3523: return $2;
3524: }
1.714 raeburn 3525: }
3526: }
3527: }
3528: }
3529:
1.159 www 3530: # Free bre to public access
3531:
3532: if ($priv eq 'bre') {
1.238 www 3533: my $copyright=&metadata($uri,'copyright');
1.620 albertel 3534: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 3535: return 'F';
3536: }
1.238 www 3537: if ($copyright eq 'priv') {
3538: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3539: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 3540: return '';
3541: }
3542: }
3543: if ($copyright eq 'domain') {
3544: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3545: unless (($env{'user.domain'} eq $1) ||
3546: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 3547: return '';
3548: }
1.262 matthew 3549: }
1.620 albertel 3550: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 3551: # Library role, so allow browsing of resources in this domain.
3552: return 'F';
1.238 www 3553: }
1.341 www 3554: if ($copyright eq 'custom') {
3555: unless (&customaccess($priv,$uri)) { return ''; }
3556: }
1.14 www 3557: }
1.264 matthew 3558: # Domain coordinator is trying to create a course
1.620 albertel 3559: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 3560: # uri is the requested domain in this case.
3561: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 3562: # a role of dc for the domain in question.
1.620 albertel 3563: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 3564: }
1.29 www 3565:
1.52 www 3566: my $thisallowed='';
3567: my $statecond=0;
3568: my $courseprivid='';
3569:
3570: # Course
3571:
1.620 albertel 3572: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3573: $thisallowed.=$1;
3574: }
1.29 www 3575:
1.52 www 3576: # Domain
3577:
1.620 albertel 3578: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 3579: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3580: $thisallowed.=$1;
3581: }
1.52 www 3582:
3583: # Course: uri itself is a course
1.66 www 3584: my $courseuri=$uri;
3585: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 3586: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 3587:
1.620 albertel 3588: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 3589: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3590: $thisallowed.=$1;
3591: }
1.29 www 3592:
1.665 albertel 3593: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 3594: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 3595: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 3596: $thisallowed='';
1.671 raeburn 3597: my ($match)=&is_on_map($uri);
3598: if ($match) {
3599: if ($env{'user.priv.'.$env{'request.role'}.'./'}
3600: =~/\Q$priv\E\&([^\:]*)/) {
3601: $thisallowed.=$1;
3602: }
3603: } else {
1.705 albertel 3604: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 3605: if ($refuri) {
3606: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 3607: $thisallowed='F';
1.671 raeburn 3608: } else {
3609: $refuri=&declutter($refuri);
3610: my ($match) = &is_on_map($refuri);
3611: if ($match) {
3612: $thisallowed='F';
3613: }
1.669 raeburn 3614: }
1.671 raeburn 3615: }
3616: }
1.314 www 3617: }
1.492 albertel 3618:
1.766 albertel 3619: if ($priv eq 'bre'
3620: && $thisallowed ne 'F'
3621: && $thisallowed ne '2'
3622: && &is_portfolio_url($uri)) {
3623: $thisallowed = &portfolio_access($uri);
3624: }
3625:
1.52 www 3626: # Full access at system, domain or course-wide level? Exit.
1.29 www 3627:
3628: if ($thisallowed=~/F/) {
3629: return 'F';
3630: }
3631:
1.52 www 3632: # If this is generating or modifying users, exit with special codes
1.29 www 3633:
1.643 www 3634: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
3635: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 3636: my ($audom,$auname)=split('/',$uri);
1.643 www 3637: # no author name given, so this just checks on the general right to make a co-author in this domain
3638: unless ($auname) { return $thisallowed; }
3639: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 3640: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
3641: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
3642: ($audom ne $env{'request.role.domain'}))) { return ''; }
3643: }
1.52 www 3644: return $thisallowed;
3645: }
3646: #
1.103 harris41 3647: # Gathered so far: system, domain and course wide privileges
1.52 www 3648: #
3649: # Course: See if uri or referer is an individual resource that is part of
3650: # the course
3651:
1.620 albertel 3652: if ($env{'request.course.id'}) {
1.232 www 3653:
1.620 albertel 3654: $courseprivid=$env{'request.course.id'};
3655: if ($env{'request.course.sec'}) {
3656: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 3657: }
3658: $courseprivid=~s/\_/\//;
3659: my $checkreferer=1;
1.232 www 3660: my ($match,$cond)=&is_on_map($uri);
3661: if ($match) {
3662: $statecond=$cond;
1.620 albertel 3663: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3664: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3665: $thisallowed.=$1;
3666: $checkreferer=0;
3667: }
1.29 www 3668: }
1.83 www 3669:
1.148 www 3670: if ($checkreferer) {
1.620 albertel 3671: my $refuri=$env{'httpref.'.$orguri};
1.148 www 3672: unless ($refuri) {
1.620 albertel 3673: foreach (keys %env) {
1.148 www 3674: if ($_=~/^httpref\..*\*/) {
3675: my $pattern=$_;
1.156 www 3676: $pattern=~s/^httpref\.\/res\///;
1.148 www 3677: $pattern=~s/\*/\[\^\/\]\+/g;
3678: $pattern=~s/\//\\\//g;
1.152 www 3679: if ($orguri=~/$pattern/) {
1.620 albertel 3680: $refuri=$env{$_};
1.148 www 3681: }
3682: }
1.191 harris41 3683: }
1.148 www 3684: }
1.232 www 3685:
1.148 www 3686: if ($refuri) {
1.152 www 3687: $refuri=&declutter($refuri);
1.232 www 3688: my ($match,$cond)=&is_on_map($refuri);
3689: if ($match) {
3690: my $refstatecond=$cond;
1.620 albertel 3691: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3692: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3693: $thisallowed.=$1;
1.53 www 3694: $uri=$refuri;
3695: $statecond=$refstatecond;
1.52 www 3696: }
3697: }
1.148 www 3698: }
1.29 www 3699: }
1.52 www 3700: }
1.29 www 3701:
1.52 www 3702: #
1.103 harris41 3703: # Gathered now: all privileges that could apply, and condition number
1.52 www 3704: #
3705: #
3706: # Full or no access?
3707: #
1.29 www 3708:
1.52 www 3709: if ($thisallowed=~/F/) {
3710: return 'F';
3711: }
1.29 www 3712:
1.52 www 3713: unless ($thisallowed) {
3714: return '';
3715: }
1.29 www 3716:
1.52 www 3717: # Restrictions exist, deal with them
3718: #
3719: # C:according to course preferences
3720: # R:according to resource settings
3721: # L:unless locked
3722: # X:according to user session state
3723: #
3724:
3725: # Possibly locked functionality, check all courses
1.54 www 3726: # Locks might take effect only after 10 minutes cache expiration for other
3727: # courses, and 2 minutes for current course
1.52 www 3728:
3729: my $envkey;
3730: if ($thisallowed=~/L/) {
1.620 albertel 3731: foreach $envkey (keys %env) {
1.54 www 3732: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
3733: my $courseid=$2;
3734: my $roleid=$1.'.'.$2;
1.92 www 3735: $courseid=~s/^\///;
1.54 www 3736: my $expiretime=600;
1.620 albertel 3737: if ($env{'request.role'} eq $roleid) {
1.54 www 3738: $expiretime=120;
3739: }
3740: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
3741: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 3742: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 3743: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 3744: }
1.620 albertel 3745: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
3746: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
3747: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
3748: &log($env{'user.domain'},$env{'user.name'},
3749: $env{'user.home'},
1.57 www 3750: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 3751: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3752: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3753: return '';
3754: }
3755: }
1.620 albertel 3756: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
3757: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
3758: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
3759: &log($env{'user.domain'},$env{'user.name'},
3760: $env{'user.home'},
1.57 www 3761: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 3762: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3763: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3764: return '';
3765: }
3766: }
3767: }
1.29 www 3768: }
1.52 www 3769: }
3770:
3771: #
3772: # Rest of the restrictions depend on selected course
3773: #
3774:
1.620 albertel 3775: unless ($env{'request.course.id'}) {
1.766 albertel 3776: if ($thisallowed eq 'A') {
3777: return 'A';
3778: } else {
3779: return '1';
3780: }
1.52 www 3781: }
1.29 www 3782:
1.52 www 3783: #
3784: # Now user is definitely in a course
3785: #
1.53 www 3786:
3787:
3788: # Course preferences
3789:
3790: if ($thisallowed=~/C/) {
1.620 albertel 3791: my $rolecode=(split(/\./,$env{'request.role'}))[0];
3792: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
3793: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 3794: =~/\Q$rolecode\E/) {
1.689 albertel 3795: if ($priv ne 'pch') {
3796: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
3797: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
3798: $env{'request.course.id'});
3799: }
1.237 www 3800: return '';
3801: }
3802:
1.620 albertel 3803: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 3804: =~/\Q$unamedom\E/) {
1.689 albertel 3805: if ($priv ne 'pch') {
3806: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
3807: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
3808: $env{'request.course.id'});
3809: }
1.54 www 3810: return '';
3811: }
1.53 www 3812: }
3813:
3814: # Resource preferences
3815:
3816: if ($thisallowed=~/R/) {
1.620 albertel 3817: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 3818: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 3819: if ($priv ne 'pch') {
3820: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
3821: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
3822: }
3823: return '';
1.54 www 3824: }
1.53 www 3825: }
1.30 www 3826:
1.246 www 3827: # Restricted by state or randomout?
1.30 www 3828:
1.52 www 3829: if ($thisallowed=~/X/) {
1.620 albertel 3830: if ($env{'acc.randomout'}) {
1.579 albertel 3831: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 3832: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 3833: return '';
3834: }
1.247 www 3835: }
3836: if (&condval($statecond)) {
1.52 www 3837: return '2';
3838: } else {
3839: return '';
3840: }
3841: }
1.30 www 3842:
1.766 albertel 3843: if ($thisallowed eq 'A') {
3844: return 'A';
3845: }
1.52 www 3846: return 'F';
1.232 www 3847: }
3848:
1.710 albertel 3849: sub split_uri_for_cond {
3850: my $uri=&deversion(&declutter(shift));
3851: my @uriparts=split(/\//,$uri);
3852: my $filename=pop(@uriparts);
3853: my $pathname=join('/',@uriparts);
3854: return ($pathname,$filename);
3855: }
1.232 www 3856: # --------------------------------------------------- Is a resource on the map?
3857:
3858: sub is_on_map {
1.710 albertel 3859: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 3860: #Trying to find the conditional for the file
1.620 albertel 3861: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 3862: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 3863: if ($match) {
1.289 bowersj2 3864: return (1,$1);
3865: } else {
1.434 www 3866: return (0,0);
1.289 bowersj2 3867: }
1.12 www 3868: }
3869:
1.427 www 3870: # --------------------------------------------------------- Get symb from alias
3871:
3872: sub get_symb_from_alias {
3873: my $symb=shift;
3874: my ($map,$resid,$url)=&decode_symb($symb);
3875: # Already is a symb
3876: if ($url) { return $symb; }
3877: # Must be an alias
3878: my $aliassymb='';
3879: my %bighash;
1.620 albertel 3880: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 3881: &GDBM_READER(),0640)) {
3882: my $rid=$bighash{'mapalias_'.$symb};
3883: if ($rid) {
3884: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 3885: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
3886: $resid,$bighash{'src_'.$rid});
1.427 www 3887: }
3888: untie %bighash;
3889: }
3890: return $aliassymb;
3891: }
3892:
1.12 www 3893: # ----------------------------------------------------------------- Define Role
3894:
3895: sub definerole {
3896: if (allowed('mcr','/')) {
3897: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.392 www 3898: foreach (split(':',$sysrole)) {
1.21 www 3899: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3900: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
3901: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
3902: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3903: return "refused:s:$crole&$cqual";
3904: }
3905: }
1.191 harris41 3906: }
1.392 www 3907: foreach (split(':',$domrole)) {
1.21 www 3908: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3909: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
3910: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
3911: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 3912: return "refused:d:$crole&$cqual";
3913: }
3914: }
1.191 harris41 3915: }
1.392 www 3916: foreach (split(':',$courole)) {
1.21 www 3917: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3918: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
3919: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
3920: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3921: return "refused:c:$crole&$cqual";
3922: }
3923: }
1.191 harris41 3924: }
1.620 albertel 3925: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
3926: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 3927: "rolesdef_$rolename=".
3928: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 3929: return reply($command,$env{'user.home'});
1.12 www 3930: } else {
3931: return 'refused';
3932: }
1.105 harris41 3933: }
3934:
3935: # ---------------- Make a metadata query against the network of library servers
3936:
3937: sub metadata_query {
1.244 matthew 3938: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 3939: my %rhash;
1.244 matthew 3940: my @server_list = (defined($server_array) ? @$server_array
3941: : keys(%libserv) );
3942: for my $server (@server_list) {
1.118 harris41 3943: unless ($custom or $customshow) {
3944: my $reply=&reply("querysend:".&escape($query),$server);
3945: $rhash{$server}=$reply;
3946: }
3947: else {
3948: my $reply=&reply("querysend:".&escape($query).':'.
3949: &escape($custom).':'.&escape($customshow),
3950: $server);
3951: $rhash{$server}=$reply;
3952: }
1.112 harris41 3953: }
1.118 harris41 3954: return \%rhash;
1.240 www 3955: }
3956:
3957: # ----------------------------------------- Send log queries and wait for reply
3958:
3959: sub log_query {
3960: my ($uname,$udom,$query,%filters)=@_;
3961: my $uhome=&homeserver($uname,$udom);
3962: if ($uhome eq 'no_host') { return 'error: no_host'; }
3963: my $uhost=$hostname{$uhome};
1.241 www 3964: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys %filters));
1.240 www 3965: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
3966: $uhome);
1.479 albertel 3967: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 3968: return get_query_reply($queryid);
3969: }
3970:
1.508 raeburn 3971: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 3972:
3973: sub fetch_enrollment_query {
1.511 raeburn 3974: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 3975: my $homeserver;
1.547 raeburn 3976: my $maxtries = 1;
1.508 raeburn 3977: if ($context eq 'automated') {
3978: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 3979: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 3980: } else {
3981: $homeserver = &homeserver($cnum,$dom);
3982: }
1.506 raeburn 3983: my $host=$hostname{$homeserver};
3984: my $cmd = '';
3985: foreach (keys %{$affiliatesref}) {
1.508 raeburn 3986: $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%';
1.506 raeburn 3987: }
3988: $cmd =~ s/%%$//;
3989: $cmd = &escape($cmd);
3990: my $query = 'fetchenrollment';
1.620 albertel 3991: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 3992: unless ($queryid=~/^\Q$host\E\_/) {
3993: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
3994: return 'error: '.$queryid;
3995: }
1.506 raeburn 3996: my $reply = &get_query_reply($queryid);
1.547 raeburn 3997: my $tries = 1;
3998: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
3999: $reply = &get_query_reply($queryid);
4000: $tries ++;
4001: }
1.526 raeburn 4002: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 4003: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 4004: } else {
1.515 raeburn 4005: my @responses = split/:/,$reply;
4006: if ($homeserver eq $perlvar{'lonHostID'}) {
4007: foreach (@responses) {
4008: my ($key,$value) = split/=/,$_;
4009: $$replyref{$key} = $value;
4010: }
4011: } else {
1.506 raeburn 4012: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
4013: foreach (@responses) {
4014: my ($key,$value) = split/=/,$_;
4015: $$replyref{$key} = $value;
4016: if ($value > 0) {
4017: foreach (@{$$affiliatesref{$key}}) {
4018: my $filename = $dom.'_'.$key.'_'.$_.'_classlist.xml';
4019: my $destname = $pathname.'/'.$filename;
4020: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 4021: if ($xml_classlist =~ /^error/) {
4022: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
4023: } else {
1.506 raeburn 4024: if ( open(FILE,">$destname") ) {
4025: print FILE &unescape($xml_classlist);
4026: close(FILE);
1.526 raeburn 4027: } else {
4028: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 4029: }
4030: }
4031: }
4032: }
4033: }
4034: }
4035: return 'ok';
4036: }
4037: return 'error';
4038: }
4039:
1.242 www 4040: sub get_query_reply {
4041: my $queryid=shift;
1.240 www 4042: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
4043: my $reply='';
4044: for (1..100) {
4045: sleep 2;
4046: if (-e $replyfile.'.end') {
1.448 albertel 4047: if (open(my $fh,$replyfile)) {
1.240 www 4048: $reply.=<$fh>;
1.448 albertel 4049: close($fh);
1.240 www 4050: } else { return 'error: reply_file_error'; }
1.242 www 4051: return &unescape($reply);
4052: }
1.240 www 4053: }
1.242 www 4054: return 'timeout:'.$queryid;
1.240 www 4055: }
4056:
4057: sub courselog_query {
1.241 www 4058: #
4059: # possible filters:
4060: # url: url or symb
4061: # username
4062: # domain
4063: # action: view, submit, grade
4064: # start: timestamp
4065: # end: timestamp
4066: #
1.240 www 4067: my (%filters)=@_;
1.620 albertel 4068: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 4069: if ($filters{'url'}) {
4070: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
4071: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
4072: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
4073: }
1.620 albertel 4074: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
4075: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 4076: return &log_query($cname,$cdom,'courselog',%filters);
4077: }
4078:
4079: sub userlog_query {
4080: my ($uname,$udom,%filters)=@_;
4081: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 4082: }
4083:
1.506 raeburn 4084: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
4085:
4086: sub auto_run {
1.508 raeburn 4087: my ($cnum,$cdom) = @_;
4088: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 4089: my $response = &reply('autorun:'.$cdom,$homeserver);
1.506 raeburn 4090: return $response;
4091: }
1.776 albertel 4092:
1.506 raeburn 4093: sub auto_get_sections {
1.508 raeburn 4094: my ($cnum,$cdom,$inst_coursecode) = @_;
4095: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 4096: my @secs = ();
1.511 raeburn 4097: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 4098: unless ($response eq 'refused') {
4099: @secs = split/:/,$response;
4100: }
4101: return @secs;
4102: }
1.776 albertel 4103:
1.506 raeburn 4104: sub auto_new_course {
1.508 raeburn 4105: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
4106: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 4107: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 4108: return $response;
4109: }
1.776 albertel 4110:
1.506 raeburn 4111: sub auto_validate_courseID {
1.508 raeburn 4112: my ($cnum,$cdom,$inst_course_id) = @_;
4113: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 4114: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 4115: return $response;
4116: }
1.776 albertel 4117:
1.506 raeburn 4118: sub auto_create_password {
1.508 raeburn 4119: my ($cnum,$cdom,$authparam) = @_;
4120: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 4121: my $create_passwd = 0;
4122: my $authchk = '';
1.511 raeburn 4123: my $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
1.506 raeburn 4124: if ($response eq 'refused') {
4125: $authchk = 'refused';
4126: } else {
4127: ($authparam,$create_passwd,$authchk) = split/:/,$response;
4128: }
4129: return ($authparam,$create_passwd,$authchk);
4130: }
4131:
1.706 raeburn 4132: sub auto_photo_permission {
4133: my ($cnum,$cdom,$students) = @_;
4134: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 4135: my ($outcome,$perm_reqd,$conditions) =
4136: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 4137: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4138: return (undef,undef);
4139: }
1.706 raeburn 4140: return ($outcome,$perm_reqd,$conditions);
4141: }
4142:
4143: sub auto_checkphotos {
4144: my ($uname,$udom,$pid) = @_;
4145: my $homeserver = &homeserver($uname,$udom);
4146: my ($result,$resulttype);
4147: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 4148: &escape($uname).':'.&escape($pid),
4149: $homeserver));
1.709 albertel 4150: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4151: return (undef,undef);
4152: }
1.706 raeburn 4153: if ($outcome) {
4154: ($result,$resulttype) = split(/:/,$outcome);
4155: }
4156: return ($result,$resulttype);
4157: }
4158:
4159: sub auto_photochoice {
4160: my ($cnum,$cdom) = @_;
4161: my $homeserver = &homeserver($cnum,$cdom);
4162: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 4163: &escape($cdom),
4164: $homeserver)));
1.709 albertel 4165: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4166: return (undef,undef);
4167: }
1.706 raeburn 4168: return ($update,$comment);
4169: }
4170:
4171: sub auto_photoupdate {
4172: my ($affiliatesref,$dom,$cnum,$photo) = @_;
4173: my $homeserver = &homeserver($cnum,$dom);
4174: my $host=$hostname{$homeserver};
4175: my $cmd = '';
4176: my $maxtries = 1;
4177: foreach (keys %{$affiliatesref}) {
4178: $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%';
4179: }
4180: $cmd =~ s/%%$//;
4181: $cmd = &escape($cmd);
4182: my $query = 'institutionalphotos';
4183: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
4184: unless ($queryid=~/^\Q$host\E\_/) {
4185: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
4186: return 'error: '.$queryid;
4187: }
4188: my $reply = &get_query_reply($queryid);
4189: my $tries = 1;
4190: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4191: $reply = &get_query_reply($queryid);
4192: $tries ++;
4193: }
4194: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
4195: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
4196: } else {
4197: my @responses = split(/:/,$reply);
4198: my $outcome = shift(@responses);
4199: foreach my $item (@responses) {
4200: my ($key,$value) = split(/=/,$item);
4201: $$photo{$key} = $value;
4202: }
4203: return $outcome;
4204: }
4205: return 'error';
4206: }
4207:
1.521 raeburn 4208: sub auto_instcode_format {
1.793 albertel 4209: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
4210: $cat_order) = @_;
1.521 raeburn 4211: my $courses = '';
1.772 raeburn 4212: my @homeservers;
1.521 raeburn 4213: if ($caller eq 'global') {
1.793 albertel 4214: foreach my $tryserver (keys(%libserv)) {
1.584 raeburn 4215: if ($hostdom{$tryserver} eq $codedom) {
1.793 albertel 4216: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
1.772 raeburn 4217: push(@homeservers,$tryserver);
4218: }
1.584 raeburn 4219: }
4220: }
1.521 raeburn 4221: } else {
1.772 raeburn 4222: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 4223: }
1.793 albertel 4224: foreach my $code (keys(%{$instcodes})) {
4225: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 4226: }
4227: chop($courses);
1.772 raeburn 4228: my $ok_response = 0;
4229: my $response;
4230: while (@homeservers > 0 && $ok_response == 0) {
4231: my $server = shift(@homeservers);
4232: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
4233: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
4234: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.793 albertel 4235: split/:/,$response;
1.772 raeburn 4236: %{$codes} = (%{$codes},&str2hash($codes_str));
4237: push(@{$codetitles},&str2array($codetitles_str));
4238: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
4239: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
4240: $ok_response = 1;
4241: }
4242: }
4243: if ($ok_response) {
1.521 raeburn 4244: return 'ok';
1.772 raeburn 4245: } else {
4246: return $response;
1.521 raeburn 4247: }
4248: }
4249:
1.792 raeburn 4250: sub auto_instcode_defaults {
4251: my ($domain,$returnhash,$code_order) = @_;
4252: my @homeservers;
1.793 albertel 4253: foreach my $tryserver (keys(%libserv)) {
1.792 raeburn 4254: if ($hostdom{$tryserver} eq $domain) {
1.793 albertel 4255: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
1.792 raeburn 4256: push(@homeservers,$tryserver);
4257: }
4258: }
4259: }
4260: my $ok_response = 0;
4261: my $response;
4262: while (@homeservers > 0 && $ok_response == 0) {
4263: my $server = shift(@homeservers);
4264: $response=&reply('autoinstcodedefaults:'.$domain,$server);
4265: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
1.793 albertel 4266: foreach my $pair (split(/\&/,$response)) {
4267: my ($name,$value)=split(/\=/,$pair);
1.792 raeburn 4268: if ($name eq 'code_order') {
1.796 raeburn 4269: @{$code_order} = split(/\&/,&unescape($value));
1.792 raeburn 4270: } else {
1.796 raeburn 4271: $returnhash->{&unescape($name)}=&unescape($value);
1.792 raeburn 4272: }
4273: }
4274: }
4275: $ok_response = 1;
4276: }
4277: if ($ok_response) {
4278: return 'ok';
4279: } else {
4280: return $response;
4281: }
4282: }
4283:
1.777 albertel 4284: sub auto_validate_class_sec {
1.773 raeburn 4285: my ($cdom,$cnum,$owner,$inst_class) = @_;
4286: my $homeserver = &homeserver($cnum,$cdom);
4287: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.774 banghart 4288: &escape($owner).':'.$cdom,$homeserver);
1.773 raeburn 4289: return $response;
4290: }
4291:
1.679 raeburn 4292: # ------------------------------------------------------- Course Group routines
4293:
4294: sub get_coursegroups {
1.683 raeburn 4295: my ($cdom,$cnum,$group) = @_;
4296: return(&dump('coursegroups',$cdom,$cnum,$group));
1.679 raeburn 4297: }
4298:
4299: sub modify_coursegroup {
4300: my ($cdom,$cnum,$groupsettings) = @_;
4301: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
4302: }
4303:
4304: sub modify_group_roles {
4305: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs) = @_;
4306: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
4307: my $role = 'gr/'.&escape($userprivs);
4308: my ($uname,$udom) = split(/:/,$user);
4309: my $result = &assignrole($udom,$uname,$url,$role,$end,$start);
1.684 raeburn 4310: if ($result eq 'ok') {
4311: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
4312: }
1.679 raeburn 4313: return $result;
4314: }
4315:
4316: sub modify_coursegroup_membership {
4317: my ($cdom,$cnum,$membership) = @_;
4318: my $result = &put('groupmembership',$membership,$cdom,$cnum);
4319: return $result;
4320: }
4321:
1.682 raeburn 4322: sub get_active_groups {
4323: my ($udom,$uname,$cdom,$cnum) = @_;
4324: my $now = time;
4325: my %groups = ();
4326: foreach my $key (keys(%env)) {
4327: if ($key =~ m-user\.role\.gr\./([^/]+)/([^/]+)/(\w+)$-) {
4328: my ($start,$end) = split(/\./,$env{$key});
4329: if (($end!=0) && ($end<$now)) { next; }
4330: if (($start!=0) && ($start>$now)) { next; }
4331: if ($1 eq $cdom && $2 eq $cnum) {
4332: $groups{$3} = $env{$key} ;
4333: }
4334: }
4335: }
4336: return %groups;
4337: }
4338:
1.683 raeburn 4339: sub get_group_membership {
4340: my ($cdom,$cnum,$group) = @_;
4341: return(&dump('groupmembership',$cdom,$cnum,$group));
4342: }
4343:
4344: sub get_users_groups {
4345: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 4346: my @usersgroups;
1.683 raeburn 4347: my $cachetime=1800;
4348: $courseid=~s/\_/\//g;
4349: $courseid=~s/^(\w)/\/$1/;
4350:
4351: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 4352: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
4353: if (defined($cached)) {
1.734 albertel 4354: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 4355: } else {
4356: $grouplist = '';
4357: my %roleshash = &dump('roles',$udom,$uname,$courseid);
4358: my ($tmp) = keys(%roleshash);
4359: if ($tmp=~/^error:/) {
4360: &logthis('Error retrieving roles: '.$tmp.' for '.$uname.':'.$udom);
4361: } else {
4362: my $access_end = $env{'course.'.$courseid.
4363: '.default_enrollment_end_date'};
4364: my $now = time;
1.734 albertel 4365: foreach my $key (keys(%roleshash)) {
1.733 raeburn 4366: if ($key =~ /^\Q$courseid\E\/(\w+)\_gr$/) {
4367: my $group = $1;
4368: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
4369: my $start = $2;
4370: my $end = $1;
4371: if ($start == -1) { next; } # deleted from group
4372: if (($start!=0) && ($start>$now)) { next; }
4373: if (($end!=0) && ($end<$now)) {
4374: if ($access_end && $access_end < $now) {
4375: if ($access_end - $end < 86400) {
4376: push(@usersgroups,$group);
4377: }
4378: }
4379: next;
4380: }
4381: push(@usersgroups,$group);
4382: }
1.683 raeburn 4383: }
4384: }
1.733 raeburn 4385: @usersgroups = &sort_course_groups($courseid,@usersgroups);
4386: $grouplist = join(':',@usersgroups);
4387: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 4388: }
4389: }
1.733 raeburn 4390: return @usersgroups;
1.683 raeburn 4391: }
4392:
4393: sub devalidate_getgroups_cache {
4394: my ($udom,$uname,$cdom,$cnum)=@_;
4395: my $courseid = $cdom.'_'.$cnum;
4396: $courseid=~s/\_/\//g;
4397: $courseid=~s/^(\w)/\/$1/;
4398: my $hashid="$udom:$uname:$courseid";
4399: &devalidate_cache_new('getgroups',$hashid);
4400: }
4401:
1.12 www 4402: # ------------------------------------------------------------------ Plain Text
4403:
4404: sub plaintext {
1.742 raeburn 4405: my ($short,$type,$cid) = @_;
1.758 albertel 4406: if ($short =~ /^cr/) {
4407: return (split('/',$short))[-1];
4408: }
1.742 raeburn 4409: if (!defined($cid)) {
4410: $cid = $env{'request.course.id'};
4411: }
4412: if (defined($cid) && defined($env{'course.'.$cid.'.'.$short.'.plaintext'})) {
4413: return &Apache::lonlocal::mt($env{'course.'.$cid.'.'.$short.
4414: '.plaintext'});
4415: }
4416: my %rolenames = (
4417: Course => 'std',
4418: Group => 'alt1',
4419: );
4420: if (defined($type) &&
4421: defined($rolenames{$type}) &&
4422: defined($prp{$short}{$rolenames{$type}})) {
4423: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
4424: } else {
4425: return &Apache::lonlocal::mt($prp{$short}{'std'});
4426: }
1.12 www 4427: }
4428:
4429: # ----------------------------------------------------------------- Assign Role
4430:
4431: sub assignrole {
1.357 www 4432: my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
1.21 www 4433: my $mrole;
4434: if ($role =~ /^cr\//) {
1.393 www 4435: my $cwosec=$url;
4436: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
4437: unless (&allowed('ccr',$cwosec)) {
1.104 www 4438: &logthis('Refused custom assignrole: '.
4439: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 4440: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 4441: return 'refused';
4442: }
1.21 www 4443: $mrole='cr';
1.678 raeburn 4444: } elsif ($role =~ /^gr\//) {
4445: my $cwogrp=$url;
4446: $cwogrp=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
4447: unless (&allowed('mdg',$cwogrp)) {
4448: &logthis('Refused group assignrole: '.
4449: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
4450: $env{'user.name'}.' at '.$env{'user.domain'});
4451: return 'refused';
4452: }
4453: $mrole='gr';
1.21 www 4454: } else {
1.82 www 4455: my $cwosec=$url;
1.83 www 4456: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
1.373 www 4457: unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) {
1.104 www 4458: &logthis('Refused assignrole: '.
4459: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 4460: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 4461: return 'refused';
4462: }
1.21 www 4463: $mrole=$role;
4464: }
1.620 albertel 4465: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 4466: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 4467: if ($end) { $command.='_'.$end; }
1.21 www 4468: if ($start) {
4469: if ($end) {
1.81 www 4470: $command.='_'.$start;
1.21 www 4471: } else {
1.81 www 4472: $command.='_0_'.$start;
1.21 www 4473: }
4474: }
1.739 raeburn 4475: my $origstart = $start;
4476: my $origend = $end;
1.357 www 4477: # actually delete
4478: if ($deleteflag) {
1.373 www 4479: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 4480: # modify command to delete the role
1.620 albertel 4481: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 4482: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 4483: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 4484: # set start and finish to negative values for userrolelog
4485: $start=-1;
4486: $end=-1;
4487: }
4488: }
4489: # send command
1.349 www 4490: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 4491: # log new user role if status is ok
1.349 www 4492: if ($answer eq 'ok') {
1.663 raeburn 4493: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 4494: # for course roles, perform group memberships changes triggered by role change.
4495: unless ($role =~ /^gr/) {
4496: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
4497: $origstart);
4498: }
1.349 www 4499: }
4500: return $answer;
1.169 harris41 4501: }
4502:
4503: # -------------------------------------------------- Modify user authentication
1.197 www 4504: # Overrides without validation
4505:
1.169 harris41 4506: sub modifyuserauth {
4507: my ($udom,$uname,$umode,$upass)=@_;
4508: my $uhome=&homeserver($uname,$udom);
1.197 www 4509: unless (&allowed('mau',$udom)) { return 'refused'; }
4510: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 4511: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
4512: ' in domain '.$env{'request.role.domain'});
1.169 harris41 4513: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
4514: &escape($upass),$uhome);
1.620 albertel 4515: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 4516: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
4517: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
4518: &log($udom,,$uname,$uhome,
1.620 albertel 4519: 'Authentication changed by '.$env{'user.domain'}.', '.
4520: $env{'user.name'}.', '.$umode.
1.197 www 4521: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 4522: unless ($reply eq 'ok') {
1.197 www 4523: &logthis('Authentication mode error: '.$reply);
1.169 harris41 4524: return 'error: '.$reply;
4525: }
1.170 harris41 4526: return 'ok';
1.80 www 4527: }
4528:
1.81 www 4529: # --------------------------------------------------------------- Modify a user
1.80 www 4530:
1.81 www 4531: sub modifyuser {
1.206 matthew 4532: my ($udom, $uname, $uid,
4533: $umode, $upass, $first,
4534: $middle, $last, $gene,
1.387 www 4535: $forceid, $desiredhome, $email)=@_;
1.198 www 4536: $udom=~s/\W//g;
4537: $uname=~s/\W//g;
1.81 www 4538: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 4539: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 4540: $last.', '.$gene.'(forceid: '.$forceid.')'.
4541: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
4542: ' desiredhome not specified').
1.620 albertel 4543: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
4544: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 4545: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 4546: # ----------------------------------------------------------------- Create User
1.406 albertel 4547: if (($uhome eq 'no_host') &&
4548: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 4549: my $unhome='';
1.209 matthew 4550: if (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) {
4551: $unhome = $desiredhome;
1.620 albertel 4552: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
4553: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 4554: } else { # load balancing routine for determining $unhome
1.80 www 4555: my $tryserver;
1.81 www 4556: my $loadm=10000000;
1.80 www 4557: foreach $tryserver (keys %libserv) {
4558: if ($hostdom{$tryserver} eq $udom) {
4559: my $answer=reply('load',$tryserver);
4560: if (($answer=~/\d+/) && ($answer<$loadm)) {
4561: $loadm=$answer;
4562: $unhome=$tryserver;
4563: }
4564: }
4565: }
4566: }
4567: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 4568: return 'error: unable to find a home server for '.$uname.
4569: ' in domain '.$udom;
1.80 www 4570: }
4571: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
4572: &escape($upass),$unhome);
4573: unless ($reply eq 'ok') {
4574: return 'error: '.$reply;
4575: }
1.230 stredwic 4576: $uhome=&homeserver($uname,$udom,'true');
1.80 www 4577: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 4578: return 'error: unable verify users home machine.';
1.80 www 4579: }
1.209 matthew 4580: } # End of creation of new user
1.80 www 4581: # ---------------------------------------------------------------------- Add ID
4582: if ($uid) {
4583: $uid=~tr/A-Z/a-z/;
4584: my %uidhash=&idrget($udom,$uname);
1.196 www 4585: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
4586: && (!$forceid)) {
1.80 www 4587: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 4588: return 'error: user id "'.$uid.'" does not match '.
4589: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 4590: }
4591: } else {
4592: &idput($udom,($uname => $uid));
4593: }
4594: }
4595: # -------------------------------------------------------------- Add names, etc
1.313 matthew 4596: my @tmp=&get('environment',
1.134 albertel 4597: ['firstname','middlename','lastname','generation'],
4598: $udom,$uname);
1.313 matthew 4599: my %names;
4600: if ($tmp[0] =~ m/^error:.*/) {
4601: %names=();
4602: } else {
4603: %names = @tmp;
4604: }
1.388 www 4605: #
4606: # Make sure to not trash student environment if instructor does not bother
4607: # to supply name and email information
4608: #
4609: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 4610: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 4611: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 4612: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 4613: if ($email) {
4614: $email=~s/[^\w\@\.\-\,]//gs;
4615: if ($email=~/\@/) { $names{'notification'} = $email;
4616: $names{'critnotification'} = $email;
4617: $names{'permanentemail'} = $email; }
4618: }
1.134 albertel 4619: my $reply = &put('environment', \%names, $udom,$uname);
4620: if ($reply ne 'ok') { return 'error: '.$reply; }
1.680 www 4621: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.81 www 4622: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 4623: $umode.', '.$first.', '.$middle.', '.
4624: $last.', '.$gene.' by '.
1.620 albertel 4625: $env{'user.name'}.' at '.$env{'user.domain'});
1.134 albertel 4626: return 'ok';
1.80 www 4627: }
4628:
1.81 www 4629: # -------------------------------------------------------------- Modify student
1.80 www 4630:
1.81 www 4631: sub modifystudent {
4632: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.515 raeburn 4633: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid)=@_;
1.455 albertel 4634: if (!$cid) {
1.620 albertel 4635: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 4636: return 'not_in_class';
4637: }
1.80 www 4638: }
4639: # --------------------------------------------------------------- Make the user
1.81 www 4640: my $reply=&modifyuser
1.209 matthew 4641: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 4642: $desiredhome,$email);
1.80 www 4643: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 4644: # This will cause &modify_student_enrollment to get the uid from the
4645: # students environment
4646: $uid = undef if (!$forceid);
1.455 albertel 4647: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.515 raeburn 4648: $gene,$usec,$end,$start,$type,$locktype,$cid);
1.297 matthew 4649: return $reply;
4650: }
4651:
4652: sub modify_student_enrollment {
1.515 raeburn 4653: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid) = @_;
1.455 albertel 4654: my ($cdom,$cnum,$chome);
4655: if (!$cid) {
1.620 albertel 4656: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 4657: return 'not_in_class';
4658: }
1.620 albertel 4659: $cdom=$env{'course.'.$cid.'.domain'};
4660: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 4661: } else {
4662: ($cdom,$cnum)=split(/_/,$cid);
4663: }
1.620 albertel 4664: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 4665: if (!$chome) {
1.457 raeburn 4666: $chome=&homeserver($cnum,$cdom);
1.297 matthew 4667: }
1.455 albertel 4668: if (!$chome) { return 'unknown_course'; }
1.297 matthew 4669: # Make sure the user exists
1.81 www 4670: my $uhome=&homeserver($uname,$udom);
4671: if (($uhome eq '') || ($uhome eq 'no_host')) {
4672: return 'error: no such user';
4673: }
1.297 matthew 4674: # Get student data if we were not given enough information
4675: if (!defined($first) || $first eq '' ||
4676: !defined($last) || $last eq '' ||
4677: !defined($uid) || $uid eq '' ||
4678: !defined($middle) || $middle eq '' ||
4679: !defined($gene) || $gene eq '') {
1.294 matthew 4680: # They did not supply us with enough data to enroll the student, so
4681: # we need to pick up more information.
1.297 matthew 4682: my %tmp = &get('environment',
1.294 matthew 4683: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 4684: ,$udom,$uname);
4685:
1.455 albertel 4686: #foreach (keys(%tmp)) {
4687: # &logthis("key $_ = ".$tmp{$_});
4688: #}
1.294 matthew 4689: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
4690: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
4691: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 4692: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 4693: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
4694: }
1.556 albertel 4695: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 4696: my $reply=cput('classlist',
4697: {"$uname:$udom" =>
1.515 raeburn 4698: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 4699: $cdom,$cnum);
1.81 www 4700: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
4701: return 'error: '.$reply;
1.652 albertel 4702: } else {
4703: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 4704: }
1.297 matthew 4705: # Add student role to user
1.83 www 4706: my $uurl='/'.$cid;
1.81 www 4707: $uurl=~s/\_/\//g;
4708: if ($usec) {
4709: $uurl.='/'.$usec;
4710: }
4711: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 4712: }
4713:
1.556 albertel 4714: sub format_name {
4715: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
4716: my $name;
4717: if ($first ne 'lastname') {
4718: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
4719: } else {
4720: if ($lastname=~/\S/) {
4721: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
4722: $name=~s/\s+,/,/;
4723: } else {
4724: $name.= $firstname.' '.$middlename.' '.$generation;
4725: }
4726: }
4727: $name=~s/^\s+//;
4728: $name=~s/\s+$//;
4729: $name=~s/\s+/ /g;
4730: return $name;
4731: }
4732:
1.84 www 4733: # ------------------------------------------------- Write to course preferences
4734:
4735: sub writecoursepref {
4736: my ($courseid,%prefs)=@_;
4737: $courseid=~s/^\///;
4738: $courseid=~s/\_/\//g;
4739: my ($cdomain,$cnum)=split(/\//,$courseid);
4740: my $chome=homeserver($cnum,$cdomain);
4741: if (($chome eq '') || ($chome eq 'no_host')) {
4742: return 'error: no such course';
4743: }
4744: my $cstring='';
1.191 harris41 4745: foreach (keys %prefs) {
1.84 www 4746: $cstring.=escape($_).'='.escape($prefs{$_}).'&';
1.191 harris41 4747: }
1.84 www 4748: $cstring=~s/\&$//;
4749: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
4750: }
4751:
4752: # ---------------------------------------------------------- Make/modify course
4753:
4754: sub createcourse {
1.741 raeburn 4755: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
4756: $course_owner,$crstype)=@_;
1.84 www 4757: $url=&declutter($url);
4758: my $cid='';
1.264 matthew 4759: unless (&allowed('ccc',$udom)) {
1.84 www 4760: return 'refused';
4761: }
4762: # ------------------------------------------------------------------- Create ID
1.674 www 4763: my $uname=int(1+rand(9)).
4764: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
4765: substr($$.time,0,5).unpack("H8",pack("I32",time)).
1.84 www 4766: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
4767: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 4768: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 4769: unless (($uhome eq '') || ($uhome eq 'no_host')) {
4770: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
4771: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 4772: $uhome=&homeserver($uname,$udom,'true');
1.84 www 4773: unless (($uhome eq '') || ($uhome eq 'no_host')) {
4774: return 'error: unable to generate unique course-ID';
4775: }
4776: }
1.264 matthew 4777: # ------------------------------------------------ Check supplied server name
1.620 albertel 4778: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.264 matthew 4779: if (! exists($libserv{$course_server})) {
4780: return 'error:bad server name '.$course_server;
4781: }
1.84 www 4782: # ------------------------------------------------------------- Make the course
4783: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 4784: $course_server);
1.84 www 4785: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 4786: $uhome=&homeserver($uname,$udom,'true');
1.84 www 4787: if (($uhome eq '') || ($uhome eq 'no_host')) {
4788: return 'error: no such course';
4789: }
1.271 www 4790: # ----------------------------------------------------------------- Course made
1.516 raeburn 4791: # log existence
4792: &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
1.741 raeburn 4793: ':'.&escape($inst_code).':'.&escape($course_owner).':'.
4794: &escape($crstype),$uhome);
1.358 www 4795: &flushcourselogs();
4796: # set toplevel url
1.271 www 4797: my $topurl=$url;
4798: unless ($nonstandard) {
4799: # ------------------------------------------ For standard courses, make top url
4800: my $mapurl=&clutter($url);
1.278 www 4801: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 4802: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 4803: <map>
4804: <resource id="1" type="start"></resource>
4805: <resource id="2" src="$mapurl"></resource>
4806: <resource id="3" type="finish"></resource>
4807: <link index="1" from="1" to="2"></link>
4808: <link index="2" from="2" to="3"></link>
4809: </map>
4810: ENDINITMAP
4811: $topurl=&declutter(
1.638 albertel 4812: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 4813: );
4814: }
4815: # ----------------------------------------------------------- Write preferences
1.84 www 4816: &writecoursepref($udom.'_'.$uname,
4817: ('description' => $description,
1.271 www 4818: 'url' => $topurl));
1.84 www 4819: return '/'.$udom.'/'.$uname;
4820: }
4821:
1.21 www 4822: # ---------------------------------------------------------- Assign Custom Role
4823:
4824: sub assigncustomrole {
1.357 www 4825: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
1.21 www 4826: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.357 www 4827: $end,$start,$deleteflag);
1.21 www 4828: }
4829:
4830: # ----------------------------------------------------------------- Revoke Role
4831:
4832: sub revokerole {
1.357 www 4833: my ($udom,$uname,$url,$role,$deleteflag)=@_;
1.21 www 4834: my $now=time;
1.357 www 4835: return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
1.21 www 4836: }
4837:
4838: # ---------------------------------------------------------- Revoke Custom Role
4839:
4840: sub revokecustomrole {
1.357 www 4841: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
1.21 www 4842: my $now=time;
1.357 www 4843: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
4844: $deleteflag);
1.17 www 4845: }
4846:
1.533 banghart 4847: # ------------------------------------------------------------ Disk usage
1.535 albertel 4848: sub diskusage {
1.533 banghart 4849: my ($udom,$uname,$directoryRoot)=@_;
4850: $directoryRoot =~ s/\/$//;
1.535 albertel 4851: my $listing=&reply('du:'.$directoryRoot,homeserver($uname,$udom));
1.514 albertel 4852: return $listing;
1.512 banghart 4853: }
4854:
1.566 banghart 4855: sub is_locked {
4856: my ($file_name, $domain, $user) = @_;
4857: my @check;
4858: my $is_locked;
4859: push @check, $file_name;
1.613 albertel 4860: my %locked = &get('file_permissions',\@check,
1.620 albertel 4861: $env{'user.domain'},$env{'user.name'});
1.615 albertel 4862: my ($tmp)=keys(%locked);
4863: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 4864:
1.566 banghart 4865: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 4866: $is_locked = 'false';
4867: foreach my $entry (@{$locked{$file_name}}) {
4868: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 4869: $is_locked = 'true';
4870: last;
1.745 raeburn 4871: }
4872: }
1.566 banghart 4873: } else {
4874: $is_locked = 'false';
4875: }
4876: }
4877:
1.759 albertel 4878: sub declutter_portfile {
4879: my ($file) = @_;
4880: &logthis("got $file");
4881: $file =~ s-^(/portfolio/|portfolio/)-/-;
4882: &logthis("ret $file");
4883: return $file;
4884: }
4885:
1.559 banghart 4886: # ------------------------------------------------------------- Mark as Read Only
4887:
4888: sub mark_as_readonly {
4889: my ($domain,$user,$files,$what) = @_;
1.613 albertel 4890: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4891: my ($tmp)=keys(%current_permissions);
4892: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 4893: foreach my $file (@{$files}) {
1.759 albertel 4894: $file = &declutter_portfile($file);
1.561 banghart 4895: push(@{$current_permissions{$file}},$what);
1.559 banghart 4896: }
1.613 albertel 4897: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 4898: return;
4899: }
4900:
1.572 banghart 4901: # ------------------------------------------------------------Save Selected Files
4902:
4903: sub save_selected_files {
4904: my ($user, $path, @files) = @_;
4905: my $filename = $user."savedfiles";
1.573 banghart 4906: my @other_files = &files_not_in_path($user, $path);
1.574 banghart 4907: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 4908: foreach my $file (@files) {
1.620 albertel 4909: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 4910: }
4911: foreach my $file (@other_files) {
1.574 banghart 4912: print (OUT $file."\n");
1.572 banghart 4913: }
1.574 banghart 4914: close (OUT);
1.572 banghart 4915: return 'ok';
4916: }
4917:
1.574 banghart 4918: sub clear_selected_files {
4919: my ($user) = @_;
4920: my $filename = $user."savedfiles";
4921: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
4922: print (OUT undef);
4923: close (OUT);
4924: return ("ok");
4925: }
4926:
1.572 banghart 4927: sub files_in_path {
4928: my ($user, $path) = @_;
4929: my $filename = $user."savedfiles";
4930: my %return_files;
1.574 banghart 4931: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 4932: while (my $line_in = <IN>) {
1.574 banghart 4933: chomp ($line_in);
4934: my @paths_and_file = split (m!/!, $line_in);
4935: my $file_part = pop (@paths_and_file);
4936: my $path_part = join ('/', @paths_and_file);
1.573 banghart 4937: $path_part.='/';
4938: my $path_and_file = $path_part.$file_part;
4939: if ($path_part eq $path) {
4940: $return_files{$file_part}= 'selected';
4941: }
4942: }
1.574 banghart 4943: close (IN);
4944: return (\%return_files);
1.572 banghart 4945: }
4946:
4947: # called in portfolio select mode, to show files selected NOT in current directory
4948: sub files_not_in_path {
4949: my ($user, $path) = @_;
4950: my $filename = $user."savedfiles";
4951: my @return_files;
4952: my $path_part;
1.574 banghart 4953: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.572 banghart 4954: while (<IN>) {
4955: #ok, I know it's clunky, but I want it to work
4956: my @paths_and_file = split m!/!, $_;
1.574 banghart 4957: my $file_part = pop (@paths_and_file);
4958: chomp ($file_part);
4959: my $path_part = join ('/', @paths_and_file);
1.572 banghart 4960: $path_part .= '/';
4961: my $path_and_file = $path_part.$file_part;
4962: if ($path_part ne $path) {
1.574 banghart 4963: push (@return_files, ($path_and_file));
1.572 banghart 4964: }
4965: }
1.574 banghart 4966: close (OUT);
4967: return (@return_files);
1.572 banghart 4968: }
4969:
1.745 raeburn 4970: #----------------------------------------------Get portfolio file permissions
1.629 banghart 4971:
1.745 raeburn 4972: sub get_portfile_permissions {
4973: my ($domain,$user) = @_;
1.613 albertel 4974: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4975: my ($tmp)=keys(%current_permissions);
4976: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 4977: return \%current_permissions;
4978: }
4979:
4980: #---------------------------------------------Get portfolio file access controls
4981:
1.749 raeburn 4982: sub get_access_controls {
1.745 raeburn 4983: my ($current_permissions,$group,$file) = @_;
1.769 albertel 4984: my %access;
4985: my $real_file = $file;
4986: $file =~ s/\.meta$//;
1.745 raeburn 4987: if (defined($file)) {
1.749 raeburn 4988: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
4989: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 4990: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 4991: }
4992: }
1.745 raeburn 4993: } else {
1.749 raeburn 4994: foreach my $key (keys(%{$current_permissions})) {
4995: if ($key =~ /\0accesscontrol$/) {
4996: if (defined($group)) {
4997: if ($key !~ m-^\Q$group\E/-) {
4998: next;
4999: }
5000: }
5001: my ($fullpath) = split(/\0/,$key);
5002: if (ref($$current_permissions{$key}) eq 'HASH') {
5003: foreach my $control (keys(%{$$current_permissions{$key}})) {
5004: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
5005: }
5006: }
5007: }
5008: }
5009: }
5010: return %access;
5011: }
5012:
5013: sub modify_access_controls {
5014: my ($file_name,$changes,$domain,$user)=@_;
5015: my ($outcome,$deloutcome);
5016: my %store_permissions;
5017: my %new_values;
5018: my %new_control;
5019: my %translation;
5020: my @deletions = ();
5021: my $now = time;
5022: if (exists($$changes{'activate'})) {
5023: if (ref($$changes{'activate'}) eq 'HASH') {
5024: my @newitems = sort(keys(%{$$changes{'activate'}}));
5025: my $numnew = scalar(@newitems);
5026: for (my $i=0; $i<$numnew; $i++) {
5027: my $newkey = $newitems[$i];
5028: my $newid = &Apache::loncommon::get_cgi_id();
1.797 ! raeburn 5029: if ($newkey =~ /^\d+:/) {
! 5030: $newkey =~ s/^(\d+)/$newid/;
! 5031: $translation{$1} = $newid;
! 5032: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
! 5033: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
! 5034: $translation{$1} = $newid;
! 5035: }
1.749 raeburn 5036: $new_values{$file_name."\0".$newkey} =
5037: $$changes{'activate'}{$newitems[$i]};
5038: $new_control{$newkey} = $now;
5039: }
5040: }
5041: }
5042: my %todelete;
5043: my %changed_items;
5044: foreach my $action ('delete','update') {
5045: if (exists($$changes{$action})) {
5046: if (ref($$changes{$action}) eq 'HASH') {
5047: foreach my $key (keys(%{$$changes{$action}})) {
5048: my ($itemnum) = ($key =~ /^([^:]+):/);
5049: if ($action eq 'delete') {
5050: $todelete{$itemnum} = 1;
5051: } else {
5052: $changed_items{$itemnum} = $key;
5053: }
5054: }
1.745 raeburn 5055: }
5056: }
1.749 raeburn 5057: }
5058: # get lock on access controls for file.
5059: my $lockhash = {
5060: $file_name."\0".'locked_access_records' => $env{'user.name'}.
5061: ':'.$env{'user.domain'},
5062: };
5063: my $tries = 0;
5064: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5065:
5066: while (($gotlock ne 'ok') && $tries <3) {
5067: $tries ++;
5068: sleep 1;
5069: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5070: }
5071: if ($gotlock eq 'ok') {
5072: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
5073: my ($tmp)=keys(%curr_permissions);
5074: if ($tmp=~/^error:/) { undef(%curr_permissions); }
5075: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
5076: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
5077: if (ref($curr_controls) eq 'HASH') {
5078: foreach my $control_item (keys(%{$curr_controls})) {
5079: my ($itemnum) = ($control_item =~ /^([^:]+):/);
5080: if (defined($todelete{$itemnum})) {
5081: push(@deletions,$file_name."\0".$control_item);
5082: } else {
5083: if (defined($changed_items{$itemnum})) {
5084: $new_control{$changed_items{$itemnum}} = $now;
5085: push(@deletions,$file_name."\0".$control_item);
5086: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
5087: } else {
5088: $new_control{$control_item} = $$curr_controls{$control_item};
5089: }
5090: }
1.745 raeburn 5091: }
5092: }
5093: }
1.749 raeburn 5094: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
5095: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
5096: $outcome = &put('file_permissions',\%new_values,$domain,$user);
5097: # remove lock
5098: my @del_lock = ($file_name."\0".'locked_access_records');
5099: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
5100: } else {
5101: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 5102: }
1.749 raeburn 5103: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 5104: }
5105:
5106: #------------------------------------------------------Get Marked as Read Only
5107:
5108: sub get_marked_as_readonly {
5109: my ($domain,$user,$what,$group) = @_;
5110: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 5111: my @readonly_files;
1.629 banghart 5112: my $cmp1=$what;
5113: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 5114: while (my ($file_name,$value) = each(%{$current_permissions})) {
5115: if (defined($group)) {
5116: if ($file_name !~ m-^\Q$group\E/-) {
5117: next;
5118: }
5119: }
1.561 banghart 5120: if (ref($value) eq "ARRAY"){
5121: foreach my $stored_what (@{$value}) {
1.629 banghart 5122: my $cmp2=$stored_what;
1.759 albertel 5123: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 5124: $cmp2=join('',@{$stored_what});
1.745 raeburn 5125: }
1.629 banghart 5126: if ($cmp1 eq $cmp2) {
1.561 banghart 5127: push(@readonly_files, $file_name);
1.745 raeburn 5128: last;
1.563 banghart 5129: } elsif (!defined($what)) {
5130: push(@readonly_files, $file_name);
1.745 raeburn 5131: last;
1.561 banghart 5132: }
5133: }
1.745 raeburn 5134: }
1.561 banghart 5135: }
5136: return @readonly_files;
5137: }
1.577 banghart 5138: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 5139:
1.577 banghart 5140: sub get_marked_as_readonly_hash {
1.745 raeburn 5141: my ($current_permissions,$group,$what) = @_;
1.577 banghart 5142: my %readonly_files;
1.745 raeburn 5143: while (my ($file_name,$value) = each(%{$current_permissions})) {
5144: if (defined($group)) {
5145: if ($file_name !~ m-^\Q$group\E/-) {
5146: next;
5147: }
5148: }
1.577 banghart 5149: if (ref($value) eq "ARRAY"){
5150: foreach my $stored_what (@{$value}) {
1.745 raeburn 5151: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 5152: foreach my $lock_descriptor(@{$stored_what}) {
5153: if ($lock_descriptor eq 'graded') {
5154: $readonly_files{$file_name} = 'graded';
5155: } elsif ($lock_descriptor eq 'handback') {
5156: $readonly_files{$file_name} = 'handback';
5157: } else {
5158: if (!exists($readonly_files{$file_name})) {
5159: $readonly_files{$file_name} = 'locked';
5160: }
5161: }
1.745 raeburn 5162: }
1.750 banghart 5163: }
1.577 banghart 5164: }
5165: }
5166: }
5167: return %readonly_files;
5168: }
1.559 banghart 5169: # ------------------------------------------------------------ Unmark as Read Only
5170:
5171: sub unmark_as_readonly {
1.629 banghart 5172: # unmarks $file_name (if $file_name is defined), or all files locked by $what
5173: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 5174: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 5175: $file_name = &declutter_portfile($file_name);
1.634 albertel 5176: my $symb_crs = $what;
5177: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 5178: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 5179: my ($tmp)=keys(%current_permissions);
5180: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 5181: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 5182: foreach my $file (@readonly_files) {
1.759 albertel 5183: my $clean_file = &declutter_portfile($file);
5184: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 5185: my $current_locks = $current_permissions{$file};
1.563 banghart 5186: my @new_locks;
5187: my @del_keys;
5188: if (ref($current_locks) eq "ARRAY"){
5189: foreach my $locker (@{$current_locks}) {
1.632 albertel 5190: my $compare=$locker;
1.749 raeburn 5191: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 5192: $compare=join('',@{$locker});
1.746 raeburn 5193: if ($compare ne $symb_crs) {
5194: push(@new_locks, $locker);
5195: }
1.563 banghart 5196: }
5197: }
1.650 albertel 5198: if (scalar(@new_locks) > 0) {
1.563 banghart 5199: $current_permissions{$file} = \@new_locks;
5200: } else {
5201: push(@del_keys, $file);
1.613 albertel 5202: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 5203: delete($current_permissions{$file});
1.563 banghart 5204: }
5205: }
1.561 banghart 5206: }
1.613 albertel 5207: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5208: return;
5209: }
1.512 banghart 5210:
1.17 www 5211: # ------------------------------------------------------------ Directory lister
5212:
5213: sub dirlist {
1.253 stredwic 5214: my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_;
5215:
1.18 www 5216: $uri=~s/^\///;
5217: $uri=~s/\/$//;
1.253 stredwic 5218: my ($udom, $uname);
5219: (undef,$udom,$uname)=split(/\//,$uri);
5220: if(defined($userdomain)) {
5221: $udom = $userdomain;
5222: }
5223: if(defined($username)) {
5224: $uname = $username;
5225: }
5226:
5227: my $dirRoot = $perlvar{'lonDocRoot'};
5228: if(defined($alternateDirectoryRoot)) {
5229: $dirRoot = $alternateDirectoryRoot;
5230: $dirRoot =~ s/\/$//;
1.751 banghart 5231: }
1.253 stredwic 5232:
5233: if($udom) {
5234: if($uname) {
1.605 matthew 5235: my $listing=reply('ls2:'.$dirRoot.'/'.$uri,
1.253 stredwic 5236: homeserver($uname,$udom));
1.605 matthew 5237: my @listing_results;
5238: if ($listing eq 'unknown_cmd') {
5239: $listing=reply('ls:'.$dirRoot.'/'.$uri,
5240: homeserver($uname,$udom));
5241: @listing_results = split(/:/,$listing);
5242: } else {
5243: @listing_results = map { &unescape($_); } split(/:/,$listing);
5244: }
5245: return @listing_results;
1.253 stredwic 5246: } elsif(!defined($alternateDirectoryRoot)) {
5247: my $tryserver;
5248: my %allusers=();
5249: foreach $tryserver (keys %libserv) {
5250: if($hostdom{$tryserver} eq $udom) {
1.605 matthew 5251: my $listing=reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
1.253 stredwic 5252: $udom, $tryserver);
1.605 matthew 5253: my @listing_results;
5254: if ($listing eq 'unknown_cmd') {
5255: $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
5256: $udom, $tryserver);
5257: @listing_results = split(/:/,$listing);
5258: } else {
5259: @listing_results =
5260: map { &unescape($_); } split(/:/,$listing);
5261: }
5262: if ($listing_results[0] ne 'no_such_dir' &&
5263: $listing_results[0] ne 'empty' &&
5264: $listing_results[0] ne 'con_lost') {
5265: foreach (@listing_results) {
1.253 stredwic 5266: my ($entry,@stat)=split(/&/,$_);
5267: $allusers{$entry}=1;
5268: }
5269: }
1.191 harris41 5270: }
1.253 stredwic 5271: }
5272: my $alluserstr='';
5273: foreach (sort keys %allusers) {
5274: $alluserstr.=$_.'&user:';
5275: }
5276: $alluserstr=~s/:$//;
5277: return split(/:/,$alluserstr);
5278: } else {
5279: my @emptyResults = ();
5280: push(@emptyResults, 'missing user name');
5281: return split(':',@emptyResults);
5282: }
5283: } elsif(!defined($alternateDirectoryRoot)) {
5284: my $tryserver;
5285: my %alldom=();
5286: foreach $tryserver (keys %libserv) {
5287: $alldom{$hostdom{$tryserver}}=1;
5288: }
5289: my $alldomstr='';
5290: foreach (sort keys %alldom) {
1.397 albertel 5291: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'/&domain:';
1.253 stredwic 5292: }
5293: $alldomstr=~s/:$//;
5294: return split(/:/,$alldomstr);
5295: } else {
5296: my @emptyResults = ();
5297: push(@emptyResults, 'missing domain');
5298: return split(':',@emptyResults);
1.275 stredwic 5299: }
5300: }
5301:
5302: # --------------------------------------------- GetFileTimestamp
5303: # This function utilizes dirlist and returns the date stamp for
5304: # when it was last modified. It will also return an error of -1
5305: # if an error occurs
5306:
1.410 matthew 5307: ##
5308: ## FIXME: This subroutine assumes its caller knows something about the
5309: ## directory structure of the home server for the student ($root).
5310: ## Not a good assumption to make. Since this is for looking up files
5311: ## in user directories, the full path should be constructed by lond, not
5312: ## whatever machine we request data from.
5313: ##
1.275 stredwic 5314: sub GetFileTimestamp {
5315: my ($studentDomain,$studentName,$filename,$root)=@_;
5316: $studentDomain=~s/\W//g;
5317: $studentName=~s/\W//g;
5318: my $subdir=$studentName.'__';
5319: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
5320: my $proname="$studentDomain/$subdir/$studentName";
5321: $proname .= '/'.$filename;
1.375 matthew 5322: my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain,
5323: $studentName, $root);
1.275 stredwic 5324: my @stats = split('&', $fileStat);
5325: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 5326: # @stats contains first the filename, then the stat output
5327: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 5328: } else {
5329: return -1;
1.253 stredwic 5330: }
1.26 www 5331: }
5332:
1.712 albertel 5333: sub stat_file {
5334: my ($uri) = @_;
1.787 albertel 5335: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 5336:
1.712 albertel 5337: my ($udom,$uname,$file,$dir);
5338: if ($uri =~ m-^/(uploaded|editupload)/-) {
5339: ($udom,$uname,$file) =
5340: ($uri =~ m-/(?:uploaded|editupload)/?([^/]*)/?([^/]*)/?(.*)-);
5341: $file = 'userfiles/'.$file;
1.740 www 5342: $dir = &propath($udom,$uname);
1.712 albertel 5343: }
5344: if ($uri =~ m-^/res/-) {
5345: ($udom,$uname) =
5346: ($uri =~ m-/(?:res)/?([^/]*)/?([^/]*)/-);
5347: $file = $uri;
5348: }
5349:
5350: if (!$udom || !$uname || !$file) {
5351: # unable to handle the uri
5352: return ();
5353: }
5354:
5355: my ($result) = &dirlist($file,$udom,$uname,$dir);
5356: my @stats = split('&', $result);
1.721 banghart 5357:
1.712 albertel 5358: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
5359: shift(@stats); #filename is first
5360: return @stats;
5361: }
5362: return ();
5363: }
5364:
1.26 www 5365: # -------------------------------------------------------- Value of a Condition
5366:
1.713 albertel 5367: # gets the value of a specific preevaluated condition
5368: # stored in the string $env{user.state.<cid>}
5369: # or looks up a condition reference in the bighash and if if hasn't
5370: # already been evaluated recurses into docondval to get the value of
5371: # the condition, then memoizing it to
5372: # $env{user.state.<cid>.<condition>}
1.40 www 5373: sub directcondval {
5374: my $number=shift;
1.620 albertel 5375: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 5376: &Apache::lonuserstate::evalstate();
5377: }
1.713 albertel 5378: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
5379: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
5380: } elsif ($number =~ /^_/) {
5381: my $sub_condition;
5382: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
5383: &GDBM_READER(),0640)) {
5384: $sub_condition=$bighash{'conditions'.$number};
5385: untie(%bighash);
5386: }
5387: my $value = &docondval($sub_condition);
5388: &appenv('user.state.'.$env{'request.course.id'}.".$number" => $value);
5389: return $value;
5390: }
1.620 albertel 5391: if ($env{'user.state.'.$env{'request.course.id'}}) {
5392: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 5393: } else {
5394: return 2;
5395: }
5396: }
5397:
1.713 albertel 5398: # get the collection of conditions for this resource
1.26 www 5399: sub condval {
5400: my $condidx=shift;
1.54 www 5401: my $allpathcond='';
1.713 albertel 5402: foreach my $cond (split(/\|/,$condidx)) {
5403: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
5404: $allpathcond.=
5405: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
5406: }
1.191 harris41 5407: }
1.54 www 5408: $allpathcond=~s/\|$//;
1.713 albertel 5409: return &docondval($allpathcond);
5410: }
5411:
5412: #evaluates an expression of conditions
5413: sub docondval {
5414: my ($allpathcond) = @_;
5415: my $result=0;
5416: if ($env{'request.course.id'}
5417: && defined($allpathcond)) {
5418: my $operand='|';
5419: my @stack;
5420: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
5421: if ($chunk eq '(') {
5422: push @stack,($operand,$result);
5423: } elsif ($chunk eq ')') {
5424: my $before=pop @stack;
5425: if (pop @stack eq '&') {
5426: $result=$result>$before?$before:$result;
5427: } else {
5428: $result=$result>$before?$result:$before;
5429: }
5430: } elsif (($chunk eq '&') || ($chunk eq '|')) {
5431: $operand=$chunk;
5432: } else {
5433: my $new=directcondval($chunk);
5434: if ($operand eq '&') {
5435: $result=$result>$new?$new:$result;
5436: } else {
5437: $result=$result>$new?$result:$new;
5438: }
5439: }
5440: }
1.26 www 5441: }
5442: return $result;
1.421 albertel 5443: }
5444:
5445: # ---------------------------------------------------- Devalidate courseresdata
5446:
5447: sub devalidatecourseresdata {
5448: my ($coursenum,$coursedomain)=@_;
5449: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 5450: &devalidate_cache_new('courseres',$hashid);
1.28 www 5451: }
5452:
1.763 www 5453:
1.200 www 5454: # --------------------------------------------------- Course Resourcedata Query
5455:
1.624 albertel 5456: sub get_courseresdata {
5457: my ($coursenum,$coursedomain)=@_;
1.200 www 5458: my $coursehom=&homeserver($coursenum,$coursedomain);
5459: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 5460: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 5461: my %dumpreply;
1.417 albertel 5462: unless (defined($cached)) {
1.624 albertel 5463: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 5464: $result=\%dumpreply;
1.251 albertel 5465: my ($tmp) = keys(%dumpreply);
5466: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 5467: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 5468: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
5469: return $tmp;
1.416 albertel 5470: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 5471: $result=undef;
1.599 albertel 5472: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 5473: }
5474: }
1.624 albertel 5475: return $result;
5476: }
5477:
1.633 albertel 5478: sub devalidateuserresdata {
5479: my ($uname,$udom)=@_;
5480: my $hashid="$udom:$uname";
5481: &devalidate_cache_new('userres',$hashid);
5482: }
5483:
1.624 albertel 5484: sub get_userresdata {
5485: my ($uname,$udom)=@_;
5486: #most student don\'t have any data set, check if there is some data
5487: if (&EXT_cache_status($udom,$uname)) { return undef; }
5488:
5489: my $hashid="$udom:$uname";
5490: my ($result,$cached)=&is_cached_new('userres',$hashid);
5491: if (!defined($cached)) {
5492: my %resourcedata=&dump('resourcedata',$udom,$uname);
5493: $result=\%resourcedata;
5494: &do_cache_new('userres',$hashid,$result,600);
5495: }
5496: my ($tmp)=keys(%$result);
5497: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
5498: return $result;
5499: }
5500: #error 2 occurs when the .db doesn't exist
5501: if ($tmp!~/error: 2 /) {
1.672 albertel 5502: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 5503: " Trying to get resource data for ".
5504: $uname." at ".$udom.": ".
5505: $tmp."</font>");
5506: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 5507: #&EXT_cache_set($udom,$uname);
5508: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 5509: undef($tmp); # not really an error so don't send it back
1.624 albertel 5510: }
5511: return $tmp;
5512: }
5513:
5514: sub resdata {
5515: my ($name,$domain,$type,@which)=@_;
5516: my $result;
5517: if ($type eq 'course') {
5518: $result=&get_courseresdata($name,$domain);
5519: } elsif ($type eq 'user') {
5520: $result=&get_userresdata($name,$domain);
5521: }
5522: if (!ref($result)) { return $result; }
1.251 albertel 5523: foreach my $item (@which) {
1.417 albertel 5524: if (defined($result->{$item})) {
5525: return $result->{$item};
1.251 albertel 5526: }
1.250 albertel 5527: }
1.291 albertel 5528: return undef;
1.200 www 5529: }
5530:
1.379 matthew 5531: #
5532: # EXT resource caching routines
5533: #
5534:
5535: sub clear_EXT_cache_status {
1.383 albertel 5536: &delenv('cache.EXT.');
1.379 matthew 5537: }
5538:
5539: sub EXT_cache_status {
5540: my ($target_domain,$target_user) = @_;
1.383 albertel 5541: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 5542: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 5543: # We know already the user has no data
5544: return 1;
5545: } else {
5546: return 0;
5547: }
5548: }
5549:
5550: sub EXT_cache_set {
5551: my ($target_domain,$target_user) = @_;
1.383 albertel 5552: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.633 albertel 5553: #&appenv($cachename => time);
1.379 matthew 5554: }
5555:
1.28 www 5556: # --------------------------------------------------------- Value of a Variable
1.58 www 5557: sub EXT {
1.715 albertel 5558:
1.395 albertel 5559: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 5560: unless ($varname) { return ''; }
1.218 albertel 5561: #get real user name/domain, courseid and symb
5562: my $courseid;
1.359 albertel 5563: my $publicuser;
1.427 www 5564: if ($symbparm) {
5565: $symbparm=&get_symb_from_alias($symbparm);
5566: }
1.218 albertel 5567: if (!($uname && $udom)) {
1.790 albertel 5568: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 5569: if (!$symbparm) { $symbparm=$cursymb; }
5570: } else {
1.620 albertel 5571: $courseid=$env{'request.course.id'};
1.218 albertel 5572: }
1.48 www 5573: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
5574: my $rest;
1.320 albertel 5575: if (defined($therest[0])) {
1.48 www 5576: $rest=join('.',@therest);
5577: } else {
5578: $rest='';
5579: }
1.320 albertel 5580:
1.57 www 5581: my $qualifierrest=$qualifier;
5582: if ($rest) { $qualifierrest.='.'.$rest; }
5583: my $spacequalifierrest=$space;
5584: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 5585: if ($realm eq 'user') {
1.48 www 5586: # --------------------------------------------------------------- user.resource
5587: if ($space eq 'resource') {
1.651 albertel 5588: if ( (defined($Apache::lonhomework::parsing_a_problem)
5589: || defined($Apache::lonhomework::parsing_a_task))
5590: &&
1.744 albertel 5591: ($symbparm eq &symbread()) ) {
5592: # if we are in the middle of processing the resource the
5593: # get the value we are planning on committing
5594: if (defined($Apache::lonhomework::results{$qualifierrest})) {
5595: return $Apache::lonhomework::results{$qualifierrest};
5596: } else {
5597: return $Apache::lonhomework::history{$qualifierrest};
5598: }
1.335 albertel 5599: } else {
1.359 albertel 5600: my %restored;
1.620 albertel 5601: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 5602: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
5603: } else {
5604: %restored=&restore($symbparm,$courseid,$udom,$uname);
5605: }
1.335 albertel 5606: return $restored{$qualifierrest};
5607: }
1.48 www 5608: # ----------------------------------------------------------------- user.access
5609: } elsif ($space eq 'access') {
1.218 albertel 5610: # FIXME - not supporting calls for a specific user
1.48 www 5611: return &allowed($qualifier,$rest);
5612: # ------------------------------------------ user.preferences, user.environment
5613: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 5614: if (($uname eq $env{'user.name'}) &&
5615: ($udom eq $env{'user.domain'})) {
5616: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 5617: } else {
1.359 albertel 5618: my %returnhash;
5619: if (!$publicuser) {
5620: %returnhash=&userenvironment($udom,$uname,
5621: $qualifierrest);
5622: }
1.218 albertel 5623: return $returnhash{$qualifierrest};
5624: }
1.48 www 5625: # ----------------------------------------------------------------- user.course
5626: } elsif ($space eq 'course') {
1.218 albertel 5627: # FIXME - not supporting calls for a specific user
1.620 albertel 5628: return $env{join('.',('request.course',$qualifier))};
1.48 www 5629: # ------------------------------------------------------------------- user.role
5630: } elsif ($space eq 'role') {
1.218 albertel 5631: # FIXME - not supporting calls for a specific user
1.620 albertel 5632: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 5633: if ($qualifier eq 'value') {
5634: return $role;
5635: } elsif ($qualifier eq 'extent') {
5636: return $where;
5637: }
5638: # ----------------------------------------------------------------- user.domain
5639: } elsif ($space eq 'domain') {
1.218 albertel 5640: return $udom;
1.48 www 5641: # ------------------------------------------------------------------- user.name
5642: } elsif ($space eq 'name') {
1.218 albertel 5643: return $uname;
1.48 www 5644: # ---------------------------------------------------- Any other user namespace
1.29 www 5645: } else {
1.359 albertel 5646: my %reply;
5647: if (!$publicuser) {
5648: %reply=&get($space,[$qualifierrest],$udom,$uname);
5649: }
5650: return $reply{$qualifierrest};
1.48 www 5651: }
1.236 www 5652: } elsif ($realm eq 'query') {
5653: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 5654: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
5655: [$spacequalifierrest]);
1.620 albertel 5656: return $env{'form.'.$spacequalifierrest};
1.236 www 5657: } elsif ($realm eq 'request') {
1.48 www 5658: # ------------------------------------------------------------- request.browser
5659: if ($space eq 'browser') {
1.430 www 5660: if ($qualifier eq 'textremote') {
1.676 albertel 5661: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 5662: return 1;
5663: } else {
5664: return 0;
5665: }
5666: } else {
1.620 albertel 5667: return $env{'browser.'.$qualifier};
1.430 www 5668: }
1.57 www 5669: # ------------------------------------------------------------ request.filename
5670: } else {
1.620 albertel 5671: return $env{'request.'.$spacequalifierrest};
1.29 www 5672: }
1.28 www 5673: } elsif ($realm eq 'course') {
1.48 www 5674: # ---------------------------------------------------------- course.description
1.620 albertel 5675: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 5676: } elsif ($realm eq 'resource') {
1.165 www 5677:
1.620 albertel 5678: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 5679: if (!$symbparm) { $symbparm=&symbread(); }
5680: }
1.693 albertel 5681:
5682: if ($space eq 'title') {
5683: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
5684: return &gettitle($symbparm);
5685: }
5686:
5687: if ($space eq 'map') {
5688: my ($map) = &decode_symb($symbparm);
5689: return &symbread($map);
5690: }
5691:
5692: my ($section, $group, @groups);
1.593 albertel 5693: my ($courselevelm,$courselevel);
1.539 albertel 5694: if ($symbparm && defined($courseid) &&
1.620 albertel 5695: $courseid eq $env{'request.course.id'}) {
1.165 www 5696:
1.218 albertel 5697: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 5698:
1.60 www 5699: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 5700: my $symbp=$symbparm;
1.735 albertel 5701: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 5702:
5703: my $symbparm=$symbp.'.'.$spacequalifierrest;
5704: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
5705:
1.620 albertel 5706: if (($env{'user.name'} eq $uname) &&
5707: ($env{'user.domain'} eq $udom)) {
5708: $section=$env{'request.course.sec'};
1.733 raeburn 5709: @groups = split(/:/,$env{'request.course.groups'});
5710: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 5711: } else {
1.539 albertel 5712: if (! defined($usection)) {
1.551 albertel 5713: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 5714: } else {
5715: $section = $usection;
5716: }
1.733 raeburn 5717: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 5718: }
5719:
5720: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
5721: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
5722: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
5723:
1.593 albertel 5724: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 5725: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 5726: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 5727:
1.60 www 5728: # ----------------------------------------------------------- first, check user
1.624 albertel 5729:
5730: my $userreply=&resdata($uname,$udom,'user',
5731: ($courselevelr,$courselevelm,
5732: $courselevel));
5733: if (defined($userreply)) { return $userreply; }
1.95 www 5734:
1.594 albertel 5735: # ------------------------------------------------ second, check some of course
1.684 raeburn 5736: my $coursereply;
1.691 raeburn 5737: if (@groups > 0) {
5738: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
5739: $mapparm,$spacequalifierrest);
1.684 raeburn 5740: if (defined($coursereply)) { return $coursereply; }
5741: }
1.96 www 5742:
1.684 raeburn 5743: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.624 albertel 5744: $env{'course.'.$courseid.'.domain'},
5745: 'course',
5746: ($seclevelr,$seclevelm,$seclevel,
5747: $courselevelr));
1.287 albertel 5748: if (defined($coursereply)) { return $coursereply; }
1.200 www 5749:
1.60 www 5750: # ------------------------------------------------------ third, check map parms
1.218 albertel 5751: my %parmhash=();
5752: my $thisparm='';
5753: if (tie(%parmhash,'GDBM_File',
1.620 albertel 5754: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 5755: &GDBM_READER(),0640)) {
1.218 albertel 5756: $thisparm=$parmhash{$symbparm};
5757: untie(%parmhash);
5758: }
5759: if ($thisparm) { return $thisparm; }
5760: }
1.594 albertel 5761: # ------------------------------------------ fourth, look in resource metadata
1.71 www 5762:
1.218 albertel 5763: $spacequalifierrest=~s/\./\_/;
1.282 albertel 5764: my $filename;
5765: if (!$symbparm) { $symbparm=&symbread(); }
5766: if ($symbparm) {
1.409 www 5767: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 5768: } else {
1.620 albertel 5769: $filename=$env{'request.filename'};
1.282 albertel 5770: }
5771: my $metadata=&metadata($filename,$spacequalifierrest);
1.288 albertel 5772: if (defined($metadata)) { return $metadata; }
1.282 albertel 5773: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.288 albertel 5774: if (defined($metadata)) { return $metadata; }
1.142 www 5775:
1.594 albertel 5776: # ---------------------------------------------- fourth, look in rest pf course
1.593 albertel 5777: if ($symbparm && defined($courseid) &&
1.620 albertel 5778: $courseid eq $env{'request.course.id'}) {
1.624 albertel 5779: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
5780: $env{'course.'.$courseid.'.domain'},
5781: 'course',
5782: ($courselevelm,$courselevel));
1.593 albertel 5783: if (defined($coursereply)) { return $coursereply; }
5784: }
1.145 www 5785: # ------------------------------------------------------------------ Cascade up
1.218 albertel 5786: unless ($space eq '0') {
1.336 albertel 5787: my @parts=split(/_/,$space);
5788: my $id=pop(@parts);
5789: my $part=join('_',@parts);
5790: if ($part eq '') { $part='0'; }
5791: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 5792: $symbparm,$udom,$uname,$section,1);
1.337 albertel 5793: if (defined($partgeneral)) { return $partgeneral; }
1.218 albertel 5794: }
1.395 albertel 5795: if ($recurse) { return undef; }
5796: my $pack_def=&packages_tab_default($filename,$varname);
5797: if (defined($pack_def)) { return $pack_def; }
1.71 www 5798:
1.48 www 5799: # ---------------------------------------------------- Any other user namespace
5800: } elsif ($realm eq 'environment') {
5801: # ----------------------------------------------------------------- environment
1.620 albertel 5802: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
5803: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 5804: } else {
1.770 albertel 5805: if ($uname eq 'anonymous' && $udom eq '') {
5806: return '';
5807: }
1.219 albertel 5808: my %returnhash=&userenvironment($udom,$uname,
5809: $spacequalifierrest);
5810: return $returnhash{$spacequalifierrest};
5811: }
1.28 www 5812: } elsif ($realm eq 'system') {
1.48 www 5813: # ----------------------------------------------------------------- system.time
5814: if ($space eq 'time') {
5815: return time;
5816: }
1.696 albertel 5817: } elsif ($realm eq 'server') {
5818: # ----------------------------------------------------------------- system.time
5819: if ($space eq 'name') {
5820: return $ENV{'SERVER_NAME'};
5821: }
1.28 www 5822: }
1.48 www 5823: return '';
1.61 www 5824: }
5825:
1.691 raeburn 5826: sub check_group_parms {
5827: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
5828: my @groupitems = ();
5829: my $resultitem;
5830: my @levels = ($symbparm,$mapparm,$what);
5831: foreach my $group (@{$groups}) {
5832: foreach my $level (@levels) {
5833: my $item = $courseid.'.['.$group.'].'.$level;
5834: push(@groupitems,$item);
5835: }
5836: }
5837: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
5838: $env{'course.'.$courseid.'.domain'},
5839: 'course',@groupitems);
5840: return $coursereply;
5841: }
5842:
5843: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 5844: my ($courseid,@groups) = @_;
5845: @groups = sort(@groups);
1.691 raeburn 5846: return @groups;
5847: }
5848:
1.395 albertel 5849: sub packages_tab_default {
5850: my ($uri,$varname)=@_;
5851: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 5852:
5853: my (@extension,@specifics,$do_default);
5854: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 5855: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 5856: if ($pack_type eq 'default') {
5857: $do_default=1;
5858: } elsif ($pack_type eq 'extension') {
5859: push(@extension,[$package,$pack_type,$pack_part]);
5860: } else {
5861: push(@specifics,[$package,$pack_type,$pack_part]);
5862: }
5863: }
5864: # first look for a package that matches the requested part id
5865: foreach my $package (@specifics) {
5866: my (undef,$pack_type,$pack_part)=@{$package};
5867: next if ($pack_part ne $part);
5868: if (defined($packagetab{"$pack_type&$name&default"})) {
5869: return $packagetab{"$pack_type&$name&default"};
5870: }
5871: }
5872: # look for any possible matching non extension_ package
5873: foreach my $package (@specifics) {
5874: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 5875: if (defined($packagetab{"$pack_type&$name&default"})) {
5876: return $packagetab{"$pack_type&$name&default"};
5877: }
1.585 albertel 5878: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 5879: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
5880: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 5881: }
5882: }
1.738 albertel 5883: # look for any posible extension_ match
5884: foreach my $package (@extension) {
5885: my ($package,$pack_type)=@{$package};
5886: if (defined($packagetab{"$pack_type&$name&default"})) {
5887: return $packagetab{"$pack_type&$name&default"};
5888: }
5889: if (defined($packagetab{$package."&$name&default"})) {
5890: return $packagetab{$package."&$name&default"};
5891: }
5892: }
5893: # look for a global default setting
5894: if ($do_default && defined($packagetab{"default&$name&default"})) {
5895: return $packagetab{"default&$name&default"};
5896: }
1.395 albertel 5897: return undef;
5898: }
5899:
1.334 albertel 5900: sub add_prefix_and_part {
5901: my ($prefix,$part)=@_;
5902: my $keyroot;
5903: if (defined($prefix) && $prefix !~ /^__/) {
5904: # prefix that has a part already
5905: $keyroot=$prefix;
5906: } elsif (defined($prefix)) {
5907: # prefix that is missing a part
5908: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
5909: } else {
5910: # no prefix at all
5911: if (defined($part)) { $keyroot='_'.$part; }
5912: }
5913: return $keyroot;
5914: }
5915:
1.71 www 5916: # ---------------------------------------------------------------- Get metadata
5917:
1.599 albertel 5918: my %metaentry;
1.71 www 5919: sub metadata {
1.176 www 5920: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 5921: $uri=&declutter($uri);
1.288 albertel 5922: # if it is a non metadata possible uri return quickly
1.529 albertel 5923: if (($uri eq '') ||
5924: (($uri =~ m|^/*adm/|) &&
1.698 albertel 5925: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.423 albertel 5926: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
1.489 albertel 5927: ($uri =~ m|home/[^/]+/public_html/|)) {
1.468 albertel 5928: return undef;
1.288 albertel 5929: }
1.73 www 5930: my $filename=$uri;
5931: $uri=~s/\.meta$//;
1.172 www 5932: #
5933: # Is the metadata already cached?
1.177 www 5934: # Look at timestamp of caching
1.172 www 5935: # Everything is cached by the main uri, libraries are never directly cached
5936: #
1.428 albertel 5937: if (!defined($liburi)) {
1.599 albertel 5938: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 5939: if (defined($cached)) { return $result->{':'.$what}; }
5940: }
5941: {
1.172 www 5942: #
5943: # Is this a recursive call for a library?
5944: #
1.599 albertel 5945: # if (! exists($metacache{$uri})) {
5946: # $metacache{$uri}={};
5947: # }
1.171 www 5948: if ($liburi) {
5949: $liburi=&declutter($liburi);
5950: $filename=$liburi;
1.401 bowersj2 5951: } else {
1.599 albertel 5952: &devalidate_cache_new('meta',$uri);
5953: undef(%metaentry);
1.401 bowersj2 5954: }
1.140 www 5955: my %metathesekeys=();
1.73 www 5956: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 5957: my $metastring;
1.768 albertel 5958: if ($uri !~ m -^(editupload)/-) {
1.543 albertel 5959: my $file=&filelocation('',&clutter($filename));
1.599 albertel 5960: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 5961: $metastring=&getfile($file);
1.489 albertel 5962: }
1.208 albertel 5963: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 5964: my $token;
1.140 www 5965: undef %metathesekeys;
1.71 www 5966: while ($token=$parser->get_token) {
1.339 albertel 5967: if ($token->[0] eq 'S') {
5968: if (defined($token->[2]->{'package'})) {
1.172 www 5969: #
5970: # This is a package - get package info
5971: #
1.339 albertel 5972: my $package=$token->[2]->{'package'};
5973: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
5974: if (defined($token->[2]->{'id'})) {
5975: $keyroot.='_'.$token->[2]->{'id'};
5976: }
1.599 albertel 5977: if ($metaentry{':packages'}) {
5978: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 5979: } else {
1.599 albertel 5980: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 5981: }
1.736 albertel 5982: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 5983: my $part=$keyroot;
5984: $part=~s/^\_//;
1.736 albertel 5985: if ($pack_entry=~/^\Q$package\E\&/ ||
5986: $pack_entry=~/^\Q$package\E_0\&/) {
5987: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 5988: # ignore package.tab specified default values
5989: # here &package_tab_default() will fetch those
5990: if ($subp eq 'default') { next; }
1.736 albertel 5991: my $value=$packagetab{$pack_entry};
1.432 albertel 5992: my $unikey;
5993: if ($pack =~ /_0$/) {
5994: $unikey='parameter_0_'.$name;
5995: $part=0;
5996: } else {
5997: $unikey='parameter'.$keyroot.'_'.$name;
5998: }
1.339 albertel 5999: if ($subp eq 'display') {
6000: $value.=' [Part: '.$part.']';
6001: }
1.599 albertel 6002: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 6003: $metathesekeys{$unikey}=1;
1.599 albertel 6004: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6005: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 6006: }
1.599 albertel 6007: if (defined($metaentry{':'.$unikey.'.default'})) {
6008: $metaentry{':'.$unikey}=
6009: $metaentry{':'.$unikey.'.default'};
1.356 albertel 6010: }
1.339 albertel 6011: }
6012: }
6013: } else {
1.172 www 6014: #
6015: # This is not a package - some other kind of start tag
1.339 albertel 6016: #
6017: my $entry=$token->[1];
6018: my $unikey;
6019: if ($entry eq 'import') {
6020: $unikey='';
6021: } else {
6022: $unikey=$entry;
6023: }
6024: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
6025:
6026: if (defined($token->[2]->{'id'})) {
6027: $unikey.='_'.$token->[2]->{'id'};
6028: }
1.175 www 6029:
1.339 albertel 6030: if ($entry eq 'import') {
1.175 www 6031: #
6032: # Importing a library here
1.339 albertel 6033: #
6034: if ($depthcount<20) {
6035: my $location=$parser->get_text('/import');
6036: my $dir=$filename;
6037: $dir=~s|[^/]*$||;
6038: $location=&filelocation($dir,$location);
1.736 albertel 6039: my $metadata =
6040: &metadata($uri,'keys', $location,$unikey,
6041: $depthcount+1);
6042: foreach my $meta (split(',',$metadata)) {
6043: $metaentry{':'.$meta}=$metaentry{':'.$meta};
6044: $metathesekeys{$meta}=1;
1.339 albertel 6045: }
6046: }
6047: } else {
6048:
6049: if (defined($token->[2]->{'name'})) {
6050: $unikey.='_'.$token->[2]->{'name'};
6051: }
6052: $metathesekeys{$unikey}=1;
1.736 albertel 6053: foreach my $param (@{$token->[3]}) {
6054: $metaentry{':'.$unikey.'.'.$param} =
6055: $token->[2]->{$param};
1.339 albertel 6056: }
6057: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 6058: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 6059: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
6060: # only ws inside the tag, and not in default, so use default
6061: # as value
1.599 albertel 6062: $metaentry{':'.$unikey}=$default;
1.339 albertel 6063: } else {
1.321 albertel 6064: # either something interesting inside the tag or default
6065: # uninteresting
1.599 albertel 6066: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 6067: }
1.172 www 6068: # end of not-a-package not-a-library import
1.339 albertel 6069: }
1.172 www 6070: # end of not-a-package start tag
1.339 albertel 6071: }
1.172 www 6072: # the next is the end of "start tag"
1.339 albertel 6073: }
6074: }
1.483 albertel 6075: my ($extension) = ($uri =~ /\.(\w+)$/);
1.737 albertel 6076: foreach my $key (keys(%packagetab)) {
1.483 albertel 6077: #no specific packages #how's our extension
6078: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 6079: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 6080: \%metathesekeys);
6081: }
1.599 albertel 6082: if (!exists($metaentry{':packages'})) {
1.737 albertel 6083: foreach my $key (keys(%packagetab)) {
1.483 albertel 6084: #no specific packages well let's get default then
6085: if ($key!~/^default&/) { next; }
1.488 albertel 6086: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 6087: \%metathesekeys);
6088: }
6089: }
1.338 www 6090: # are there custom rights to evaluate
1.599 albertel 6091: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 6092:
1.338 www 6093: #
6094: # Importing a rights file here
1.339 albertel 6095: #
6096: unless ($depthcount) {
1.599 albertel 6097: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 6098: my $dir=$filename;
6099: $dir=~s|[^/]*$||;
6100: $location=&filelocation($dir,$location);
1.736 albertel 6101: my $rights_metadata =
6102: &metadata($uri,'keys',$location,'_rights',
6103: $depthcount+1);
6104: foreach my $rights (split(',',$rights_metadata)) {
6105: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
6106: $metathesekeys{$rights}=1;
1.339 albertel 6107: }
6108: }
6109: }
1.737 albertel 6110: # uniqifiy package listing
6111: my %seen;
6112: my @uniq_packages =
6113: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
6114: $metaentry{':packages'} = join(',',@uniq_packages);
6115:
6116: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 6117: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
6118: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.699 albertel 6119: &do_cache_new('meta',$uri,\%metaentry,60*60);
1.177 www 6120: # this is the end of "was not already recently cached
1.71 www 6121: }
1.599 albertel 6122: return $metaentry{':'.$what};
1.261 albertel 6123: }
6124:
1.488 albertel 6125: sub metadata_create_package_def {
1.483 albertel 6126: my ($uri,$key,$package,$metathesekeys)=@_;
6127: my ($pack,$name,$subp)=split(/\&/,$key);
6128: if ($subp eq 'default') { next; }
6129:
1.599 albertel 6130: if (defined($metaentry{':packages'})) {
6131: $metaentry{':packages'}.=','.$package;
1.483 albertel 6132: } else {
1.599 albertel 6133: $metaentry{':packages'}=$package;
1.483 albertel 6134: }
6135: my $value=$packagetab{$key};
6136: my $unikey;
6137: $unikey='parameter_0_'.$name;
1.599 albertel 6138: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 6139: $$metathesekeys{$unikey}=1;
1.599 albertel 6140: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6141: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 6142: }
1.599 albertel 6143: if (defined($metaentry{':'.$unikey.'.default'})) {
6144: $metaentry{':'.$unikey}=
6145: $metaentry{':'.$unikey.'.default'};
1.483 albertel 6146: }
6147: }
6148:
1.261 albertel 6149: sub metadata_generate_part0 {
6150: my ($metadata,$metacache,$uri) = @_;
6151: my %allnames;
1.737 albertel 6152: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 6153: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 6154: my $part=$$metacache{':'.$metakey.'.part'};
6155: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 6156: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 6157: $allnames{$name}=$part;
6158: }
6159: }
6160: }
6161: foreach my $name (keys(%allnames)) {
6162: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 6163: my $key=":parameter_0_$name";
1.261 albertel 6164: $$metacache{"$key.part"}='0';
6165: $$metacache{"$key.name"}=$name;
1.428 albertel 6166: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 6167: $allnames{$name}.'_'.$name.
6168: '.type'};
1.428 albertel 6169: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 6170: '.display'};
1.644 www 6171: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 6172: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 6173: $$metacache{"$key.display"}=$olddis;
6174: }
1.71 www 6175: }
6176:
1.764 albertel 6177: # ------------------------------------------------------ Devalidate title cache
6178:
6179: sub devalidate_title_cache {
6180: my ($url)=@_;
6181: if (!$env{'request.course.id'}) { return; }
6182: my $symb=&symbread($url);
6183: if (!$symb) { return; }
6184: my $key=$env{'request.course.id'}."\0".$symb;
6185: &devalidate_cache_new('title',$key);
6186: }
6187:
1.301 www 6188: # ------------------------------------------------- Get the title of a resource
6189:
6190: sub gettitle {
6191: my $urlsymb=shift;
6192: my $symb=&symbread($urlsymb);
1.534 albertel 6193: if ($symb) {
1.620 albertel 6194: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 6195: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 6196: if (defined($cached)) {
6197: return $result;
6198: }
1.534 albertel 6199: my ($map,$resid,$url)=&decode_symb($symb);
6200: my $title='';
6201: my %bighash;
1.620 albertel 6202: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.534 albertel 6203: &GDBM_READER(),0640)) {
6204: my $mapid=$bighash{'map_pc_'.&clutter($map)};
6205: $title=$bighash{'title_'.$mapid.'.'.$resid};
6206: untie %bighash;
6207: }
6208: $title=~s/\&colon\;/\:/gs;
6209: if ($title) {
1.599 albertel 6210: return &do_cache_new('title',$key,$title,600);
1.534 albertel 6211: }
6212: $urlsymb=$url;
6213: }
6214: my $title=&metadata($urlsymb,'title');
6215: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
6216: return $title;
1.301 www 6217: }
1.613 albertel 6218:
1.614 albertel 6219: sub get_slot {
6220: my ($which,$cnum,$cdom)=@_;
6221: if (!$cnum || !$cdom) {
1.790 albertel 6222: (undef,my $courseid)=&whichuser();
1.620 albertel 6223: $cdom=$env{'course.'.$courseid.'.domain'};
6224: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 6225: }
1.703 albertel 6226: my $key=join("\0",'slots',$cdom,$cnum,$which);
6227: my %slotinfo;
6228: if (exists($remembered{$key})) {
6229: $slotinfo{$which} = $remembered{$key};
6230: } else {
6231: %slotinfo=&get('slots',[$which],$cdom,$cnum);
6232: &Apache::lonhomework::showhash(%slotinfo);
6233: my ($tmp)=keys(%slotinfo);
6234: if ($tmp=~/^error:/) { return (); }
6235: $remembered{$key} = $slotinfo{$which};
6236: }
1.616 albertel 6237: if (ref($slotinfo{$which}) eq 'HASH') {
6238: return %{$slotinfo{$which}};
6239: }
6240: return $slotinfo{$which};
1.614 albertel 6241: }
1.31 www 6242: # ------------------------------------------------- Update symbolic store links
6243:
6244: sub symblist {
6245: my ($mapname,%newhash)=@_;
1.438 www 6246: $mapname=&deversion(&declutter($mapname));
1.31 www 6247: my %hash;
1.620 albertel 6248: if (($env{'request.course.fn'}) && (%newhash)) {
6249: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 6250: &GDBM_WRCREAT(),0640)) {
1.711 albertel 6251: foreach my $url (keys %newhash) {
6252: next if ($url eq 'last_known'
6253: && $env{'form.no_update_last_known'});
6254: $hash{declutter($url)}=&encode_symb($mapname,
6255: $newhash{$url}->[1],
6256: $newhash{$url}->[0]);
1.191 harris41 6257: }
1.31 www 6258: if (untie(%hash)) {
6259: return 'ok';
6260: }
6261: }
6262: }
6263: return 'error';
1.212 www 6264: }
6265:
6266: # --------------------------------------------------------------- Verify a symb
6267:
6268: sub symbverify {
1.510 www 6269: my ($symb,$thisurl)=@_;
6270: my $thisfn=$thisurl;
1.439 www 6271: $thisfn=&declutter($thisfn);
1.215 www 6272: # direct jump to resource in page or to a sequence - will construct own symbs
6273: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
6274: # check URL part
1.409 www 6275: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 6276:
1.431 www 6277: unless ($url eq $thisfn) { return 0; }
1.213 www 6278:
1.216 www 6279: $symb=&symbclean($symb);
1.510 www 6280: $thisurl=&deversion($thisurl);
1.439 www 6281: $thisfn=&deversion($thisfn);
1.213 www 6282:
6283: my %bighash;
6284: my $okay=0;
1.431 www 6285:
1.620 albertel 6286: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 6287: &GDBM_READER(),0640)) {
1.510 www 6288: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 6289: unless ($ids) {
1.510 www 6290: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 6291: }
6292: if ($ids) {
6293: # ------------------------------------------------------------------- Has ID(s)
6294: foreach (split(/\,/,$ids)) {
1.644 www 6295: my ($mapid,$resid)=split(/\./,$_);
1.216 www 6296: if (
6297: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
6298: eq $symb) {
1.620 albertel 6299: if (($env{'request.role.adv'}) ||
6300: $bighash{'encrypted_'.$_} eq $env{'request.enc'}) {
1.582 albertel 6301: $okay=1;
6302: }
6303: }
1.216 www 6304: }
6305: }
1.213 www 6306: untie(%bighash);
6307: }
6308: return $okay;
1.31 www 6309: }
6310:
1.210 www 6311: # --------------------------------------------------------------- Clean-up symb
6312:
6313: sub symbclean {
6314: my $symb=shift;
1.568 albertel 6315: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 6316: # remove version from map
6317: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 6318:
1.210 www 6319: # remove version from URL
6320: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 6321:
1.507 www 6322: # remove wrapper
6323:
1.510 www 6324: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 6325: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 6326: return $symb;
1.409 www 6327: }
6328:
6329: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 6330:
6331: sub encode_symb {
6332: my ($map,$resid,$url)=@_;
6333: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
6334: }
1.409 www 6335:
6336: sub decode_symb {
1.568 albertel 6337: my $symb=shift;
6338: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
6339: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 6340: return (&fixversion($map),$resid,&fixversion($url));
6341: }
6342:
6343: sub fixversion {
6344: my $fn=shift;
1.609 banghart 6345: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 6346: my %bighash;
6347: my $uri=&clutter($fn);
1.620 albertel 6348: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 6349: # is this cached?
1.599 albertel 6350: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 6351: if (defined($cached)) { return $result; }
6352: # unfortunately not cached, or expired
1.620 albertel 6353: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 6354: &GDBM_READER(),0640)) {
6355: if ($bighash{'version_'.$uri}) {
6356: my $version=$bighash{'version_'.$uri};
1.444 www 6357: unless (($version eq 'mostrecent') ||
6358: ($version==&getversion($uri))) {
1.440 www 6359: $uri=~s/\.(\w+)$/\.$version\.$1/;
6360: }
6361: }
6362: untie %bighash;
1.413 www 6363: }
1.599 albertel 6364: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 6365: }
6366:
6367: sub deversion {
6368: my $url=shift;
6369: $url=~s/\.\d+\.(\w+)$/\.$1/;
6370: return $url;
1.210 www 6371: }
6372:
1.31 www 6373: # ------------------------------------------------------ Return symb list entry
6374:
6375: sub symbread {
1.249 www 6376: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 6377: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 6378: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 6379: # no filename provided? try from environment
1.44 www 6380: unless ($thisfn) {
1.620 albertel 6381: if ($env{'request.symb'}) {
6382: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 6383: }
1.620 albertel 6384: $thisfn=$env{'request.filename'};
1.44 www 6385: }
1.569 albertel 6386: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 6387: # is that filename actually a symb? Verify, clean, and return
6388: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 6389: if (&symbverify($thisfn,$1)) {
1.620 albertel 6390: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 6391: }
1.242 www 6392: }
1.44 www 6393: $thisfn=declutter($thisfn);
1.31 www 6394: my %hash;
1.37 www 6395: my %bighash;
6396: my $syval='';
1.620 albertel 6397: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 6398: my $targetfn = $thisfn;
1.609 banghart 6399: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 6400: $targetfn = 'adm/wrapper/'.$thisfn;
6401: }
1.687 albertel 6402: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
6403: $targetfn=$1;
6404: }
1.620 albertel 6405: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 6406: &GDBM_READER(),0640)) {
1.481 raeburn 6407: $syval=$hash{$targetfn};
1.37 www 6408: untie(%hash);
6409: }
6410: # ---------------------------------------------------------- There was an entry
6411: if ($syval) {
1.601 albertel 6412: #unless ($syval=~/\_\d+$/) {
1.620 albertel 6413: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.601 albertel 6414: #&appenv('request.ambiguous' => $thisfn);
1.620 albertel 6415: #return $env{$cache_str}='';
1.601 albertel 6416: #}
6417: #$syval.=$1;
6418: #}
1.37 www 6419: } else {
6420: # ------------------------------------------------------- Was not in symb table
1.620 albertel 6421: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 6422: &GDBM_READER(),0640)) {
1.37 www 6423: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 6424: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 6425: unless ($ids) {
6426: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 6427: }
6428: unless ($ids) {
6429: # alias?
6430: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 6431: }
1.37 www 6432: if ($ids) {
6433: # ------------------------------------------------------------------- Has ID(s)
6434: my @possibilities=split(/\,/,$ids);
1.39 www 6435: if ($#possibilities==0) {
6436: # ----------------------------------------------- There is only one possibility
1.37 www 6437: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 6438: $syval=&encode_symb($bighash{'map_id_'.$mapid},
6439: $resid,$thisfn);
1.249 www 6440: } elsif (!$donotrecurse) {
1.39 www 6441: # ------------------------------------------ There is more than one possibility
6442: my $realpossible=0;
1.191 harris41 6443: foreach (@possibilities) {
1.39 www 6444: my $file=$bighash{'src_'.$_};
6445: if (&allowed('bre',$file)) {
6446: my ($mapid,$resid)=split(/\./,$_);
6447: if ($bighash{'map_type_'.$mapid} ne 'page') {
6448: $realpossible++;
1.626 albertel 6449: $syval=&encode_symb($bighash{'map_id_'.$mapid},
6450: $resid,$thisfn);
1.39 www 6451: }
6452: }
1.191 harris41 6453: }
1.39 www 6454: if ($realpossible!=1) { $syval=''; }
1.249 www 6455: } else {
6456: $syval='';
1.37 www 6457: }
6458: }
6459: untie(%bighash)
1.481 raeburn 6460: }
1.31 www 6461: }
1.62 www 6462: if ($syval) {
1.620 albertel 6463: return $env{$cache_str}=$syval;
1.62 www 6464: }
1.31 www 6465: }
1.44 www 6466: &appenv('request.ambiguous' => $thisfn);
1.620 albertel 6467: return $env{$cache_str}='';
1.31 www 6468: }
6469:
6470: # ---------------------------------------------------------- Return random seed
6471:
1.32 www 6472: sub numval {
6473: my $txt=shift;
6474: $txt=~tr/A-J/0-9/;
6475: $txt=~tr/a-j/0-9/;
6476: $txt=~tr/K-T/0-9/;
6477: $txt=~tr/k-t/0-9/;
6478: $txt=~tr/U-Z/0-5/;
6479: $txt=~tr/u-z/0-5/;
6480: $txt=~s/\D//g;
1.564 albertel 6481: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 6482: return int($txt);
1.368 albertel 6483: }
6484:
1.484 albertel 6485: sub numval2 {
6486: my $txt=shift;
6487: $txt=~tr/A-J/0-9/;
6488: $txt=~tr/a-j/0-9/;
6489: $txt=~tr/K-T/0-9/;
6490: $txt=~tr/k-t/0-9/;
6491: $txt=~tr/U-Z/0-5/;
6492: $txt=~tr/u-z/0-5/;
6493: $txt=~s/\D//g;
6494: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
6495: my $total;
6496: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 6497: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 6498: return int($total);
6499: }
6500:
1.575 albertel 6501: sub numval3 {
6502: use integer;
6503: my $txt=shift;
6504: $txt=~tr/A-J/0-9/;
6505: $txt=~tr/a-j/0-9/;
6506: $txt=~tr/K-T/0-9/;
6507: $txt=~tr/k-t/0-9/;
6508: $txt=~tr/U-Z/0-5/;
6509: $txt=~tr/u-z/0-5/;
6510: $txt=~s/\D//g;
6511: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
6512: my $total;
6513: foreach my $val (@txts) { $total+=$val; }
6514: if ($_64bit) { $total=(($total<<32)>>32); }
6515: return $total;
6516: }
6517:
1.675 albertel 6518: sub digest {
6519: my ($data)=@_;
6520: my $digest=&Digest::MD5::md5($data);
6521: my ($a,$b,$c,$d)=unpack("iiii",$digest);
6522: my ($e,$f);
6523: {
6524: use integer;
6525: $e=($a+$b);
6526: $f=($c+$d);
6527: if ($_64bit) {
6528: $e=(($e<<32)>>32);
6529: $f=(($f<<32)>>32);
6530: }
6531: }
6532: if (wantarray) {
6533: return ($e,$f);
6534: } else {
6535: my $g;
6536: {
6537: use integer;
6538: $g=($e+$f);
6539: if ($_64bit) {
6540: $g=(($g<<32)>>32);
6541: }
6542: }
6543: return $g;
6544: }
6545: }
6546:
1.368 albertel 6547: sub latest_rnd_algorithm_id {
1.675 albertel 6548: return '64bit5';
1.366 albertel 6549: }
1.32 www 6550:
1.503 albertel 6551: sub get_rand_alg {
6552: my ($courseid)=@_;
1.790 albertel 6553: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 6554: if ($courseid) {
1.620 albertel 6555: return $env{"course.$courseid.rndseed"};
1.503 albertel 6556: }
6557: return &latest_rnd_algorithm_id();
6558: }
6559:
1.562 albertel 6560: sub validCODE {
6561: my ($CODE)=@_;
6562: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
6563: return 0;
6564: }
6565:
1.491 albertel 6566: sub getCODE {
1.620 albertel 6567: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 6568: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
6569: defined($Apache::lonhomework::parsing_a_task) ) &&
6570: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 6571: return $Apache::lonhomework::history{'resource.CODE'};
6572: }
6573: return undef;
6574: }
6575:
1.31 www 6576: sub rndseed {
1.155 albertel 6577: my ($symb,$courseid,$domain,$username)=@_;
1.366 albertel 6578:
1.790 albertel 6579: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.155 albertel 6580: if (!$symb) {
1.366 albertel 6581: unless ($symb=$wsymb) { return time; }
6582: }
6583: if (!$courseid) { $courseid=$wcourseid; }
6584: if (!$domain) { $domain=$wdomain; }
6585: if (!$username) { $username=$wusername }
1.503 albertel 6586: my $which=&get_rand_alg();
1.491 albertel 6587: if (defined(&getCODE())) {
1.675 albertel 6588: if ($which eq '64bit5') {
6589: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
6590: } elsif ($which eq '64bit4') {
1.575 albertel 6591: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
6592: } else {
6593: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
6594: }
1.675 albertel 6595: } elsif ($which eq '64bit5') {
6596: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 6597: } elsif ($which eq '64bit4') {
6598: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 6599: } elsif ($which eq '64bit3') {
6600: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 6601: } elsif ($which eq '64bit2') {
6602: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 6603: } elsif ($which eq '64bit') {
6604: return &rndseed_64bit($symb,$courseid,$domain,$username);
6605: }
6606: return &rndseed_32bit($symb,$courseid,$domain,$username);
6607: }
6608:
6609: sub rndseed_32bit {
6610: my ($symb,$courseid,$domain,$username)=@_;
6611: {
6612: use integer;
6613: my $symbchck=unpack("%32C*",$symb) << 27;
6614: my $symbseed=numval($symb) << 22;
6615: my $namechck=unpack("%32C*",$username) << 17;
6616: my $nameseed=numval($username) << 12;
6617: my $domainseed=unpack("%32C*",$domain) << 7;
6618: my $courseseed=unpack("%32C*",$courseid);
6619: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 6620: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
6621: #&logthis("rndseed :$num:$symb");
1.564 albertel 6622: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 6623: return $num;
6624: }
6625: }
6626:
6627: sub rndseed_64bit {
6628: my ($symb,$courseid,$domain,$username)=@_;
6629: {
6630: use integer;
6631: my $symbchck=unpack("%32S*",$symb) << 21;
6632: my $symbseed=numval($symb) << 10;
6633: my $namechck=unpack("%32S*",$username);
6634:
6635: my $nameseed=numval($username) << 21;
6636: my $domainseed=unpack("%32S*",$domain) << 10;
6637: my $courseseed=unpack("%32S*",$courseid);
6638:
6639: my $num1=$symbchck+$symbseed+$namechck;
6640: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 6641: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
6642: #&logthis("rndseed :$num:$symb");
1.564 albertel 6643: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
6644: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 6645: return "$num1,$num2";
1.155 albertel 6646: }
1.366 albertel 6647: }
6648:
1.443 albertel 6649: sub rndseed_64bit2 {
6650: my ($symb,$courseid,$domain,$username)=@_;
6651: {
6652: use integer;
6653: # strings need to be an even # of cahracters long, it it is odd the
6654: # last characters gets thrown away
6655: my $symbchck=unpack("%32S*",$symb.' ') << 21;
6656: my $symbseed=numval($symb) << 10;
6657: my $namechck=unpack("%32S*",$username.' ');
6658:
6659: my $nameseed=numval($username) << 21;
1.501 albertel 6660: my $domainseed=unpack("%32S*",$domain.' ') << 10;
6661: my $courseseed=unpack("%32S*",$courseid.' ');
6662:
6663: my $num1=$symbchck+$symbseed+$namechck;
6664: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 6665: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
6666: #&logthis("rndseed :$num:$symb");
1.501 albertel 6667: return "$num1,$num2";
6668: }
6669: }
6670:
6671: sub rndseed_64bit3 {
6672: my ($symb,$courseid,$domain,$username)=@_;
6673: {
6674: use integer;
6675: # strings need to be an even # of cahracters long, it it is odd the
6676: # last characters gets thrown away
6677: my $symbchck=unpack("%32S*",$symb.' ') << 21;
6678: my $symbseed=numval2($symb) << 10;
6679: my $namechck=unpack("%32S*",$username.' ');
6680:
6681: my $nameseed=numval2($username) << 21;
1.443 albertel 6682: my $domainseed=unpack("%32S*",$domain.' ') << 10;
6683: my $courseseed=unpack("%32S*",$courseid.' ');
6684:
6685: my $num1=$symbchck+$symbseed+$namechck;
6686: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 6687: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
6688: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 6689: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
6690:
1.503 albertel 6691: return "$num1:$num2";
1.443 albertel 6692: }
6693: }
6694:
1.575 albertel 6695: sub rndseed_64bit4 {
6696: my ($symb,$courseid,$domain,$username)=@_;
6697: {
6698: use integer;
6699: # strings need to be an even # of cahracters long, it it is odd the
6700: # last characters gets thrown away
6701: my $symbchck=unpack("%32S*",$symb.' ') << 21;
6702: my $symbseed=numval3($symb) << 10;
6703: my $namechck=unpack("%32S*",$username.' ');
6704:
6705: my $nameseed=numval3($username) << 21;
6706: my $domainseed=unpack("%32S*",$domain.' ') << 10;
6707: my $courseseed=unpack("%32S*",$courseid.' ');
6708:
6709: my $num1=$symbchck+$symbseed+$namechck;
6710: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 6711: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
6712: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 6713: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
6714:
6715: return "$num1:$num2";
6716: }
6717: }
6718:
1.675 albertel 6719: sub rndseed_64bit5 {
6720: my ($symb,$courseid,$domain,$username)=@_;
6721: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
6722: return "$num1:$num2";
6723: }
6724:
1.366 albertel 6725: sub rndseed_CODE_64bit {
6726: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 6727: {
1.366 albertel 6728: use integer;
1.443 albertel 6729: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 6730: my $symbseed=numval2($symb);
1.491 albertel 6731: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
6732: my $CODEseed=numval(&getCODE());
1.443 albertel 6733: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 6734: my $num1=$symbseed+$CODEchck;
6735: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 6736: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
6737: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 6738: if ($_64bit) { $num1=(($num1<<32)>>32); }
6739: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 6740: return "$num1:$num2";
1.366 albertel 6741: }
6742: }
6743:
1.575 albertel 6744: sub rndseed_CODE_64bit4 {
6745: my ($symb,$courseid,$domain,$username)=@_;
6746: {
6747: use integer;
6748: my $symbchck=unpack("%32S*",$symb.' ') << 16;
6749: my $symbseed=numval3($symb);
6750: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
6751: my $CODEseed=numval3(&getCODE());
6752: my $courseseed=unpack("%32S*",$courseid.' ');
6753: my $num1=$symbseed+$CODEchck;
6754: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 6755: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
6756: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 6757: if ($_64bit) { $num1=(($num1<<32)>>32); }
6758: if ($_64bit) { $num2=(($num2<<32)>>32); }
6759: return "$num1:$num2";
6760: }
6761: }
6762:
1.675 albertel 6763: sub rndseed_CODE_64bit5 {
6764: my ($symb,$courseid,$domain,$username)=@_;
6765: my $code = &getCODE();
6766: my ($num1,$num2)=&digest("$symb,$courseid,$code");
6767: return "$num1:$num2";
6768: }
6769:
1.366 albertel 6770: sub setup_random_from_rndseed {
6771: my ($rndseed)=@_;
1.503 albertel 6772: if ($rndseed =~/([,:])/) {
6773: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 6774: &Math::Random::random_set_seed(abs($num1),abs($num2));
6775: } else {
6776: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 6777: }
1.36 albertel 6778: }
6779:
1.474 albertel 6780: sub latest_receipt_algorithm_id {
6781: return 'receipt2';
6782: }
6783:
1.480 www 6784: sub recunique {
6785: my $fucourseid=shift;
6786: my $unique;
1.620 albertel 6787: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
6788: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 6789: } else {
6790: $unique=$perlvar{'lonReceipt'};
6791: }
6792: return unpack("%32C*",$unique);
6793: }
6794:
6795: sub recprefix {
6796: my $fucourseid=shift;
6797: my $prefix;
1.620 albertel 6798: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
6799: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 6800: } else {
6801: $prefix=$perlvar{'lonHostID'};
6802: }
6803: return unpack("%32C*",$prefix);
6804: }
6805:
1.76 www 6806: sub ireceipt {
1.474 albertel 6807: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.76 www 6808: my $cuname=unpack("%32C*",$funame);
6809: my $cudom=unpack("%32C*",$fudom);
6810: my $cucourseid=unpack("%32C*",$fucourseid);
6811: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 6812: my $cunique=&recunique($fucourseid);
1.474 albertel 6813: my $cpart=unpack("%32S*",$part);
1.480 www 6814: my $return =&recprefix($fucourseid).'-';
1.620 albertel 6815: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
6816: $env{'request.state'} eq 'construct') {
1.790 albertel 6817: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 6818:
6819: $return.= ($cunique%$cuname+
6820: $cunique%$cudom+
6821: $cusymb%$cuname+
6822: $cusymb%$cudom+
6823: $cucourseid%$cuname+
6824: $cucourseid%$cudom+
6825: $cpart%$cuname+
6826: $cpart%$cudom);
6827: } else {
6828: $return.= ($cunique%$cuname+
6829: $cunique%$cudom+
6830: $cusymb%$cuname+
6831: $cusymb%$cudom+
6832: $cucourseid%$cuname+
6833: $cucourseid%$cudom);
6834: }
6835: return $return;
1.76 www 6836: }
6837:
6838: sub receipt {
1.474 albertel 6839: my ($part)=@_;
1.790 albertel 6840: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 6841: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 6842: }
1.260 ng 6843:
1.790 albertel 6844: sub whichuser {
6845: my ($passedsymb)=@_;
6846: my ($symb,$courseid,$domain,$name,$publicuser);
6847: if (defined($env{'form.grade_symb'})) {
6848: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
6849: my $allowed=&allowed('vgr',$tmp_courseid);
6850: if (!$allowed &&
6851: exists($env{'request.course.sec'}) &&
6852: $env{'request.course.sec'} !~ /^\s*$/) {
6853: $allowed=&allowed('vgr',$tmp_courseid.
6854: '/'.$env{'request.course.sec'});
6855: }
6856: if ($allowed) {
6857: ($symb)=&get_env_multiple('form.grade_symb');
6858: $courseid=$tmp_courseid;
6859: ($domain)=&get_env_multiple('form.grade_domain');
6860: ($name)=&get_env_multiple('form.grade_username');
6861: return ($symb,$courseid,$domain,$name,$publicuser);
6862: }
6863: }
6864: if (!$passedsymb) {
6865: $symb=&symbread();
6866: } else {
6867: $symb=$passedsymb;
6868: }
6869: $courseid=$env{'request.course.id'};
6870: $domain=$env{'user.domain'};
6871: $name=$env{'user.name'};
6872: if ($name eq 'public' && $domain eq 'public') {
6873: if (!defined($env{'form.username'})) {
6874: $env{'form.username'}.=time.rand(10000000);
6875: }
6876: $name.=$env{'form.username'};
6877: }
6878: return ($symb,$courseid,$domain,$name,$publicuser);
6879:
6880: }
6881:
1.36 albertel 6882: # ------------------------------------------------------------ Serves up a file
1.472 albertel 6883: # returns either the contents of the file or
6884: # -1 if the file doesn't exist
1.481 raeburn 6885: #
6886: # if the target is a file that was uploaded via DOCS,
6887: # a check will be made to see if a current copy exists on the local server,
6888: # if it does this will be served, otherwise a copy will be retrieved from
6889: # the home server for the course and stored in /home/httpd/html/userfiles on
6890: # the local server.
1.472 albertel 6891:
1.36 albertel 6892: sub getfile {
1.538 albertel 6893: my ($file) = @_;
1.609 banghart 6894: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 6895: &repcopy($file);
6896: return &readfile($file);
6897: }
6898:
6899: sub repcopy_userfile {
6900: my ($file)=@_;
1.609 banghart 6901: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 6902: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 6903: my ($cdom,$cnum,$filename) =
6904: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+([^/]+)/+([^/]+)/+(.*)|);
6905: my ($info,$rtncode);
6906: my $uri="/uploaded/$cdom/$cnum/$filename";
6907: if (-e "$file") {
6908: my @fileinfo = stat($file);
6909: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 6910: if ($lwpresp ne 'ok') {
6911: if ($rtncode eq '404') {
1.538 albertel 6912: unlink($file);
1.482 albertel 6913: }
1.517 albertel 6914: #my $ua=new LWP::UserAgent;
1.538 albertel 6915: #my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 6916: #my $response=$ua->request($request);
6917: #if ($response->is_success()) {
6918: # return $response->content;
6919: # } else {
6920: # return -1;
6921: # }
1.482 albertel 6922: return -1;
6923: }
6924: if ($info < $fileinfo[9]) {
1.607 raeburn 6925: return 'ok';
1.482 albertel 6926: }
6927: $info = '';
1.538 albertel 6928: $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 6929: if ($lwpresp ne 'ok') {
6930: return -1;
6931: }
6932: } else {
1.538 albertel 6933: my $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 6934: if ($lwpresp ne 'ok') {
1.517 albertel 6935: my $ua=new LWP::UserAgent;
1.538 albertel 6936: my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 6937: my $response=$ua->request($request);
6938: if ($response->is_success()) {
1.538 albertel 6939: $info=$response->content;
1.517 albertel 6940: } else {
6941: return -1;
6942: }
1.482 albertel 6943: }
6944: my @parts = ($cdom,$cnum);
6945: if ($filename =~ m|^(.+)/[^/]+$|) {
6946: push @parts, split(/\//,$1);
1.518 albertel 6947: }
1.538 albertel 6948: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
1.482 albertel 6949: foreach my $part (@parts) {
6950: $path .= '/'.$part;
6951: if (!-e $path) {
6952: mkdir($path,0770);
6953: }
6954: }
6955: }
1.538 albertel 6956: open(FILE,">$file");
1.482 albertel 6957: print FILE $info;
6958: close(FILE);
1.607 raeburn 6959: return 'ok';
1.481 raeburn 6960: }
6961:
1.517 albertel 6962: sub tokenwrapper {
6963: my $uri=shift;
1.552 albertel 6964: $uri=~s|^http\://([^/]+)||;
6965: $uri=~s|^/||;
1.620 albertel 6966: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 6967: my $token=$1;
1.552 albertel 6968: my (undef,$udom,$uname,$file)=split('/',$uri,4);
6969: if ($udom && $uname && $file) {
6970: $file=~s|(\?\.*)*$||;
1.620 albertel 6971: &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
1.552 albertel 6972: return 'http://'.$hostname{ &homeserver($uname,$udom)}.'/'.$uri.
1.517 albertel 6973: (($uri=~/\?/)?'&':'?').'token='.$token.
6974: '&tokenissued='.$perlvar{'lonHostID'};
6975: } else {
6976: return '/adm/notfound.html';
6977: }
6978: }
6979:
1.481 raeburn 6980: sub getuploaded {
6981: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
6982: $uri=~s/^\///;
6983: $uri = 'http://'.$hostname{ &homeserver($cnum,$cdom)}.'/raw/'.$uri;
6984: my $ua=new LWP::UserAgent;
6985: my $request=new HTTP::Request($reqtype,$uri);
6986: my $response=$ua->request($request);
6987: $$rtncode = $response->code;
1.482 albertel 6988: if (! $response->is_success()) {
6989: return 'failed';
6990: }
6991: if ($reqtype eq 'HEAD') {
1.486 www 6992: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 6993: } elsif ($reqtype eq 'GET') {
6994: $$info = $response->content;
1.472 albertel 6995: }
1.482 albertel 6996: return 'ok';
1.36 albertel 6997: }
6998:
1.481 raeburn 6999: sub readfile {
7000: my $file = shift;
7001: if ( (! -e $file ) || ($file eq '') ) { return -1; };
7002: my $fh;
7003: open($fh,"<$file");
7004: my $a='';
7005: while (<$fh>) { $a .=$_; }
7006: return $a;
7007: }
7008:
1.36 albertel 7009: sub filelocation {
1.590 banghart 7010: my ($dir,$file) = @_;
7011: my $location;
7012: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 7013:
7014: if ($file =~ m-^/adm/-) {
7015: $file=~s-^/adm/wrapper/-/-;
7016: $file=~s-^/adm/coursedocs/showdoc/-/-;
7017: }
1.590 banghart 7018: if ($file=~m:^/~:) { # is a contruction space reference
7019: $location = $file;
7020: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.649 albertel 7021: } elsif ($file=~m:^/home/[^/]*/public_html/:) {
7022: # is a correct contruction space reference
7023: $location = $file;
1.609 banghart 7024: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 7025: my ($udom,$uname,$filename)=
1.609 banghart 7026: ($file=~m -^/+(?:uploaded|editupload)/+([^/]+)/+([^/]+)/+(.*)$-);
1.590 banghart 7027: my $home=&homeserver($uname,$udom);
7028: my $is_me=0;
7029: my @ids=¤t_machine_ids();
7030: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
7031: if ($is_me) {
1.740 www 7032: $location=&propath($udom,$uname).
1.590 banghart 7033: '/userfiles/'.$filename;
7034: } else {
7035: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
7036: $udom.'/'.$uname.'/'.$filename;
7037: }
7038: } else {
7039: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
7040: $file=~s:^/res/:/:;
7041: if ( !( $file =~ m:^/:) ) {
7042: $location = $dir. '/'.$file;
7043: } else {
7044: $location = '/home/httpd/html/res'.$file;
7045: }
1.59 albertel 7046: }
1.590 banghart 7047: $location=~s://+:/:g; # remove duplicate /
7048: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
7049: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
7050: return $location;
1.46 www 7051: }
1.36 albertel 7052:
1.46 www 7053: sub hreflocation {
7054: my ($dir,$file)=@_;
1.460 albertel 7055: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
1.666 albertel 7056: $file=filelocation($dir,$file);
1.700 albertel 7057: } elsif ($file=~m-^/adm/-) {
7058: $file=~s-^/adm/wrapper/-/-;
7059: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 7060: }
7061: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
7062: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
7063: } elsif ($file=~m-/home/(\w+)/public_html/-) {
1.462 albertel 7064: $file=~s-^/home/(\w+)/public_html/-/~$1/-;
1.666 albertel 7065: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
7066: $file=~s-^/home/httpd/lonUsers/([^/]*)/./././([^/]*)/userfiles/
7067: -/uploaded/$1/$2/-x;
1.46 www 7068: }
1.462 albertel 7069: return $file;
1.465 albertel 7070: }
7071:
7072: sub current_machine_domains {
7073: my $hostname=$hostname{$perlvar{'lonHostID'}};
7074: my @domains;
7075: while( my($id, $name) = each(%hostname)) {
1.467 matthew 7076: # &logthis("-$id-$name-$hostname-");
1.465 albertel 7077: if ($hostname eq $name) {
7078: push(@domains,$hostdom{$id});
7079: }
7080: }
7081: return @domains;
7082: }
7083:
7084: sub current_machine_ids {
7085: my $hostname=$hostname{$perlvar{'lonHostID'}};
7086: my @ids;
7087: while( my($id, $name) = each(%hostname)) {
1.467 matthew 7088: # &logthis("-$id-$name-$hostname-");
1.465 albertel 7089: if ($hostname eq $name) {
7090: push(@ids,$id);
7091: }
7092: }
7093: return @ids;
1.31 www 7094: }
7095:
7096: # ------------------------------------------------------------- Declutters URLs
7097:
7098: sub declutter {
7099: my $thisfn=shift;
1.569 albertel 7100: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 7101: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 7102: $thisfn=~s/^\///;
1.697 albertel 7103: $thisfn=~s|^adm/wrapper/||;
7104: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 7105: $thisfn=~s/^res\///;
1.235 www 7106: $thisfn=~s/\?.+$//;
1.268 www 7107: return $thisfn;
7108: }
7109:
7110: # ------------------------------------------------------------- Clutter up URLs
7111:
7112: sub clutter {
7113: my $thisfn='/'.&declutter(shift);
1.609 banghart 7114: unless ($thisfn=~/^\/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)\//) {
1.270 www 7115: $thisfn='/res'.$thisfn;
7116: }
1.694 albertel 7117: if ($thisfn !~m|/adm|) {
1.695 albertel 7118: if ($thisfn =~ m|/ext/|) {
1.694 albertel 7119: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 7120: } else {
7121: my ($ext) = ($thisfn =~ /\.(\w+)$/);
7122: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 7123: if ($embstyle eq 'ssi'
7124: || ($embstyle eq 'hdn')
7125: || ($embstyle eq 'rat')
7126: || ($embstyle eq 'prv')
7127: || ($embstyle eq 'ign')) {
7128: #do nothing with these
7129: } elsif (($embstyle eq 'img')
1.695 albertel 7130: || ($embstyle eq 'emb')
7131: || ($embstyle eq 'wrp')) {
7132: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 7133: } elsif ($embstyle eq 'unk'
7134: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 7135: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 7136: } else {
1.718 www 7137: # &logthis("Got a blank emb style");
1.695 albertel 7138: }
1.694 albertel 7139: }
7140: }
1.31 www 7141: return $thisfn;
1.12 www 7142: }
7143:
1.787 albertel 7144: sub clutter_with_no_wrapper {
7145: my $uri = &clutter(shift);
7146: if ($uri =~ m-^/adm/-) {
7147: $uri =~ s-^/adm/wrapper/-/-;
7148: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
7149: }
7150: return $uri;
7151: }
7152:
1.557 albertel 7153: sub freeze_escape {
7154: my ($value)=@_;
7155: if (ref($value)) {
7156: $value=&nfreeze($value);
7157: return '__FROZEN__'.&escape($value);
7158: }
7159: return &escape($value);
7160: }
7161:
1.11 www 7162:
1.557 albertel 7163: sub thaw_unescape {
7164: my ($value)=@_;
7165: if ($value =~ /^__FROZEN__/) {
7166: substr($value,0,10,undef);
7167: $value=&unescape($value);
7168: return &thaw($value);
7169: }
7170: return &unescape($value);
7171: }
7172:
1.436 albertel 7173: sub correct_line_ends {
7174: my ($result)=@_;
7175: $$result =~s/\r\n/\n/mg;
7176: $$result =~s/\r/\n/mg;
1.415 albertel 7177: }
1.1 albertel 7178: # ================================================================ Main Program
7179:
1.184 www 7180: sub goodbye {
1.204 albertel 7181: &logthis("Starting Shut down");
1.443 albertel 7182: #not converted to using infrastruture and probably shouldn't be
1.599 albertel 7183: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&freeze(\%badServerCache))));
1.443 albertel 7184: #converted
1.599 albertel 7185: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
7186: &logthis(sprintf("%-20s is %s",'%homecache',length(&freeze(\%homecache))));
7187: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&freeze(\%titlecache))));
7188: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&freeze(\%courseresdatacache))));
1.425 albertel 7189: #1.1 only
1.599 albertel 7190: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&freeze(\%userresdatacache))));
7191: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&freeze(\%getsectioncache))));
7192: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&freeze(\%courseresversioncache))));
7193: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&freeze(\%resversioncache))));
7194: &logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
7195: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
7196: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 7197: &flushcourselogs();
7198: &logthis("Shutting down");
7199: }
7200:
1.179 www 7201: BEGIN {
1.228 harris41 7202: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
1.195 www 7203: unless ($readit) {
1.217 harris41 7204: {
1.781 raeburn 7205: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
7206: %perlvar = (%perlvar,%{$configvars});
1.227 harris41 7207: }
1.1 albertel 7208:
1.327 albertel 7209: # ------------------------------------------------------------ Read domain file
7210: {
7211: %domaindescription = ();
7212: %domain_auth_def = ();
7213: %domain_auth_arg_def = ();
1.448 albertel 7214: my $fh;
7215: if (open($fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/domain.tab')) {
1.327 albertel 7216: while (<$fh>) {
1.390 matthew 7217: next if (/^(\#|\s*$)/);
7218: # next if /^\#/;
1.327 albertel 7219: chomp;
1.403 www 7220: my ($domain, $domain_description, $def_auth, $def_auth_arg,
1.685 raeburn 7221: $def_lang, $city, $longi, $lati, $primary) = split(/:/,$_);
1.403 www 7222: $domain_auth_def{$domain}=$def_auth;
1.327 albertel 7223: $domain_auth_arg_def{$domain}=$def_auth_arg;
1.403 www 7224: $domaindescription{$domain}=$domain_description;
7225: $domain_lang_def{$domain}=$def_lang;
7226: $domain_city{$domain}=$city;
7227: $domain_longi{$domain}=$longi;
7228: $domain_lati{$domain}=$lati;
1.685 raeburn 7229: $domain_primary{$domain}=$primary;
1.403 www 7230:
1.448 albertel 7231: # &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}");
1.327 albertel 7232: # &logthis("Domain.tab: $domain ".$domaindescription{$domain} );
1.448 albertel 7233: }
1.327 albertel 7234: }
1.448 albertel 7235: close ($fh);
1.327 albertel 7236: }
7237:
7238:
1.1 albertel 7239: # ------------------------------------------------------------- Read hosts file
7240: {
1.448 albertel 7241: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
1.1 albertel 7242:
7243: while (my $configline=<$config>) {
1.303 matthew 7244: next if ($configline =~ /^(\#|\s*$)/);
1.154 www 7245: chomp($configline);
1.595 albertel 7246: my ($id,$domain,$role,$name)=split(/:/,$configline);
1.597 albertel 7247: $name=~s/\s//g;
1.595 albertel 7248: if ($id && $domain && $role && $name) {
1.252 albertel 7249: $hostname{$id}=$name;
7250: $hostdom{$id}=$domain;
7251: if ($role eq 'library') { $libserv{$id}=$name; }
1.245 www 7252: }
1.1 albertel 7253: }
1.448 albertel 7254: close($config);
1.619 albertel 7255: # FIXME: dev server don't want this, production servers _do_ want this
1.654 albertel 7256: #&get_iphost();
1.1 albertel 7257: }
7258:
1.598 albertel 7259: sub get_iphost {
7260: if (%iphost) { return %iphost; }
1.653 albertel 7261: my %name_to_ip;
1.598 albertel 7262: foreach my $id (keys(%hostname)) {
7263: my $name=$hostname{$id};
1.653 albertel 7264: my $ip;
7265: if (!exists($name_to_ip{$name})) {
7266: $ip = gethostbyname($name);
7267: if (!$ip || length($ip) ne 4) {
7268: &logthis("Skipping host $id name $name no IP found\n");
7269: next;
7270: }
7271: $ip=inet_ntoa($ip);
7272: $name_to_ip{$name} = $ip;
7273: } else {
7274: $ip = $name_to_ip{$name};
1.598 albertel 7275: }
7276: push(@{$iphost{$ip}},$id);
7277: }
7278: return %iphost;
7279: }
7280:
1.1 albertel 7281: # ------------------------------------------------------ Read spare server file
7282: {
1.448 albertel 7283: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 7284:
7285: while (my $configline=<$config>) {
7286: chomp($configline);
1.284 matthew 7287: if ($configline) {
1.784 albertel 7288: my ($host,$type) = split(':',$configline,2);
1.785 albertel 7289: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 7290: push(@{ $spareid{$type} }, $host);
1.1 albertel 7291: }
7292: }
1.448 albertel 7293: close($config);
1.1 albertel 7294: }
1.11 www 7295: # ------------------------------------------------------------ Read permissions
7296: {
1.448 albertel 7297: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 7298:
7299: while (my $configline=<$config>) {
1.448 albertel 7300: chomp($configline);
7301: if ($configline) {
7302: my ($role,$perm)=split(/ /,$configline);
7303: if ($perm ne '') { $pr{$role}=$perm; }
7304: }
1.11 www 7305: }
1.448 albertel 7306: close($config);
1.11 www 7307: }
7308:
7309: # -------------------------------------------- Read plain texts for permissions
7310: {
1.448 albertel 7311: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 7312:
7313: while (my $configline=<$config>) {
1.448 albertel 7314: chomp($configline);
7315: if ($configline) {
1.742 raeburn 7316: my ($short,@plain)=split(/:/,$configline);
7317: %{$prp{$short}} = ();
7318: if (@plain > 0) {
7319: $prp{$short}{'std'} = $plain[0];
7320: for (my $i=1; $i<@plain; $i++) {
7321: $prp{$short}{'alt'.$i} = $plain[$i];
7322: }
7323: }
1.448 albertel 7324: }
1.135 www 7325: }
1.448 albertel 7326: close($config);
1.135 www 7327: }
7328:
7329: # ---------------------------------------------------------- Read package table
7330: {
1.448 albertel 7331: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 7332:
7333: while (my $configline=<$config>) {
1.483 albertel 7334: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 7335: chomp($configline);
7336: my ($short,$plain)=split(/:/,$configline);
7337: my ($pack,$name)=split(/\&/,$short);
7338: if ($plain ne '') {
7339: $packagetab{$pack.'&'.$name.'&name'}=$name;
7340: $packagetab{$short}=$plain;
7341: }
1.11 www 7342: }
1.448 albertel 7343: close($config);
1.329 matthew 7344: }
7345:
7346: # ------------- set up temporary directory
7347: {
7348: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
7349:
1.11 www 7350: }
7351:
1.794 albertel 7352: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
7353: 'compress_threshold'=> 20_000,
7354: });
1.185 www 7355:
1.281 www 7356: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 7357: $dumpcount=0;
1.22 www 7358:
1.163 harris41 7359: &logtouch();
1.672 albertel 7360: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 7361: $readit=1;
1.564 albertel 7362: {
7363: use integer;
7364: my $test=(2**32)+1;
1.568 albertel 7365: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 7366: &logthis(" Detected 64bit platform ($_64bit)");
7367: }
1.195 www 7368: }
1.1 albertel 7369: }
1.179 www 7370:
1.1 albertel 7371: 1;
1.191 harris41 7372: __END__
7373:
1.243 albertel 7374: =pod
7375:
1.191 harris41 7376: =head1 NAME
7377:
1.243 albertel 7378: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 7379:
7380: =head1 SYNOPSIS
7381:
1.243 albertel 7382: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 7383:
7384: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
7385:
1.243 albertel 7386: Common parameters:
7387:
7388: =over 4
7389:
7390: =item *
7391:
7392: $uname : an internal username (if $cname expecting a course Id specifically)
7393:
7394: =item *
7395:
7396: $udom : a domain (if $cdom expecting a course's domain specifically)
7397:
7398: =item *
7399:
7400: $symb : a resource instance identifier
7401:
7402: =item *
7403:
7404: $namespace : the name of a .db file that contains the data needed or
7405: being set.
7406:
7407: =back
7408:
1.394 bowersj2 7409: =head1 OVERVIEW
1.191 harris41 7410:
1.394 bowersj2 7411: lonnet provides subroutines which interact with the
7412: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
7413: about classes, users, and resources.
1.243 albertel 7414:
7415: For many of these objects you can also use this to store data about
7416: them or modify them in various ways.
1.191 harris41 7417:
1.394 bowersj2 7418: =head2 Symbs
1.191 harris41 7419:
1.394 bowersj2 7420: To identify a specific instance of a resource, LON-CAPA uses symbols
7421: or "symbs"X<symb>. These identifiers are built from the URL of the
7422: map, the resource number of the resource in the map, and the URL of
7423: the resource itself. The latter is somewhat redundant, but might help
7424: if maps change.
7425:
7426: An example is
7427:
7428: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
7429:
7430: The respective map entry is
7431:
7432: <resource id="19" src="/res/msu/korte/tests/part12.problem"
7433: title="Problem 2">
7434: </resource>
7435:
7436: Symbs are used by the random number generator, as well as to store and
7437: restore data specific to a certain instance of for example a problem.
7438:
7439: =head2 Storing And Retrieving Data
7440:
7441: X<store()>X<cstore()>X<restore()>Three of the most important functions
7442: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
7443: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
7444: is is the non-critical message twin of cstore. These functions are for
7445: handlers to store a perl hash to a user's permanent data space in an
7446: easy manner, and to retrieve it again on another call. It is expected
7447: that a handler would use this once at the beginning to retrieve data,
7448: and then again once at the end to send only the new data back.
7449:
7450: The data is stored in the user's data directory on the user's
7451: homeserver under the ID of the course.
7452:
7453: The hash that is returned by restore will have all of the previous
7454: value for all of the elements of the hash.
7455:
7456: Example:
7457:
7458: #creating a hash
7459: my %hash;
7460: $hash{'foo'}='bar';
7461:
7462: #storing it
7463: &Apache::lonnet::cstore(\%hash);
7464:
7465: #changing a value
7466: $hash{'foo'}='notbar';
7467:
7468: #adding a new value
7469: $hash{'bar'}='foo';
7470: &Apache::lonnet::cstore(\%hash);
7471:
7472: #retrieving the hash
7473: my %history=&Apache::lonnet::restore();
7474:
7475: #print the hash
7476: foreach my $key (sort(keys(%history))) {
7477: print("\%history{$key} = $history{$key}");
7478: }
7479:
7480: Will print out:
1.191 harris41 7481:
1.394 bowersj2 7482: %history{1:foo} = bar
7483: %history{1:keys} = foo:timestamp
7484: %history{1:timestamp} = 990455579
7485: %history{2:bar} = foo
7486: %history{2:foo} = notbar
7487: %history{2:keys} = foo:bar:timestamp
7488: %history{2:timestamp} = 990455580
7489: %history{bar} = foo
7490: %history{foo} = notbar
7491: %history{timestamp} = 990455580
7492: %history{version} = 2
7493:
7494: Note that the special hash entries C<keys>, C<version> and
7495: C<timestamp> were added to the hash. C<version> will be equal to the
7496: total number of versions of the data that have been stored. The
7497: C<timestamp> attribute will be the UNIX time the hash was
7498: stored. C<keys> is available in every historical section to list which
7499: keys were added or changed at a specific historical revision of a
7500: hash.
7501:
7502: B<Warning>: do not store the hash that restore returns directly. This
7503: will cause a mess since it will restore the historical keys as if the
7504: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 7505:
1.394 bowersj2 7506: Calling convention:
1.191 harris41 7507:
1.394 bowersj2 7508: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
7509: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 7510:
1.394 bowersj2 7511: For more detailed information, see lonnet specific documentation.
1.191 harris41 7512:
1.394 bowersj2 7513: =head1 RETURN MESSAGES
1.191 harris41 7514:
1.394 bowersj2 7515: =over 4
1.191 harris41 7516:
1.394 bowersj2 7517: =item * B<con_lost>: unable to contact remote host
1.191 harris41 7518:
1.394 bowersj2 7519: =item * B<con_delayed>: unable to contact remote host, message will be delivered
7520: when the connection is brought back up
1.191 harris41 7521:
1.394 bowersj2 7522: =item * B<con_failed>: unable to contact remote host and unable to save message
7523: for later delivery
1.191 harris41 7524:
1.394 bowersj2 7525: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 7526:
1.394 bowersj2 7527: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 7528: that was requested
1.191 harris41 7529:
1.243 albertel 7530: =back
1.191 harris41 7531:
1.243 albertel 7532: =head1 PUBLIC SUBROUTINES
1.191 harris41 7533:
1.243 albertel 7534: =head2 Session Environment Functions
1.191 harris41 7535:
1.243 albertel 7536: =over 4
1.191 harris41 7537:
1.394 bowersj2 7538: =item *
7539: X<appenv()>
7540: B<appenv(%hash)>: the value of %hash is written to
7541: the user envirnoment file, and will be restored for each access this
1.620 albertel 7542: user makes during this session, also modifies the %env for the current
1.394 bowersj2 7543: process
1.191 harris41 7544:
7545: =item *
1.394 bowersj2 7546: X<delenv()>
7547: B<delenv($regexp)>: removes all items from the session
7548: environment file that matches the regular expression in $regexp. The
1.620 albertel 7549: values are also delted from the current processes %env.
1.191 harris41 7550:
1.795 albertel 7551: =item * get_env_multiple($name)
7552:
7553: gets $name from the %env hash, it seemlessly handles the cases where multiple
7554: values may be defined and end up as an array ref.
7555:
7556: returns an array of values
7557:
1.243 albertel 7558: =back
7559:
7560: =head2 User Information
1.191 harris41 7561:
1.243 albertel 7562: =over 4
1.191 harris41 7563:
7564: =item *
1.394 bowersj2 7565: X<queryauthenticate()>
7566: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 7567: authentication scheme
7568:
7569: =item *
1.394 bowersj2 7570: X<authenticate()>
7571: B<authenticate($uname,$upass,$udom)>: try to
7572: authenticate user from domain's lib servers (first use the current
7573: one). C<$upass> should be the users password.
1.191 harris41 7574:
7575: =item *
1.394 bowersj2 7576: X<homeserver()>
7577: B<homeserver($uname,$udom)>: find the server which has
7578: the user's directory and files (there must be only one), this caches
7579: the answer, and also caches if there is a borken connection.
1.191 harris41 7580:
7581: =item *
1.394 bowersj2 7582: X<idget()>
7583: B<idget($udom,@ids)>: find the usernames behind a list of IDs
7584: (IDs are a unique resource in a domain, there must be only 1 ID per
7585: username, and only 1 username per ID in a specific domain) (returns
7586: hash: id=>name,id=>name)
1.191 harris41 7587:
7588: =item *
1.394 bowersj2 7589: X<idrget()>
7590: B<idrget($udom,@unames)>: find the IDs behind a list of
7591: usernames (returns hash: name=>id,name=>id)
1.191 harris41 7592:
7593: =item *
1.394 bowersj2 7594: X<idput()>
7595: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 7596:
7597: =item *
1.394 bowersj2 7598: X<rolesinit()>
7599: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 7600:
7601: =item *
1.551 albertel 7602: X<getsection()>
7603: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 7604: course $cname, return section name/number or '' for "not in course"
7605: and '-1' for "no section"
7606:
7607: =item *
1.394 bowersj2 7608: X<userenvironment()>
7609: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 7610: passed in @what from the requested user's environment, returns a hash
7611:
7612: =back
7613:
7614: =head2 User Roles
7615:
7616: =over 4
7617:
7618: =item *
7619:
7620: allowed($priv,$uri) : check for a user privilege; returns codes for allowed
7621: actions
7622: F: full access
7623: U,I,K: authentication modes (cxx only)
7624: '': forbidden
7625: 1: user needs to choose course
7626: 2: browse allowed
1.766 albertel 7627: A: passphrase authentication needed
1.243 albertel 7628:
7629: =item *
7630:
7631: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
7632: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
7633: and course level
7634:
7635: =item *
7636:
7637: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
7638: explanation of a user role term
7639:
7640: =back
7641:
7642: =head2 User Modification
7643:
7644: =over 4
7645:
7646: =item *
7647:
7648: assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a
7649: user for the level given by URL. Optional start and end dates (leave empty
7650: string or zero for "no date")
1.191 harris41 7651:
7652: =item *
7653:
1.243 albertel 7654: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
7655: change a users, password, possible return values are: ok,
7656: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
7657: refused
1.191 harris41 7658:
7659: =item *
7660:
1.243 albertel 7661: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 7662:
7663: =item *
7664:
1.243 albertel 7665: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) :
7666: modify user
1.191 harris41 7667:
7668: =item *
7669:
1.286 matthew 7670: modifystudent
7671:
7672: modify a students enrollment and identification information.
7673: The course id is resolved based on the current users environment.
7674: This means the envoking user must be a course coordinator or otherwise
7675: associated with a course.
7676:
1.297 matthew 7677: This call is essentially a wrapper for lonnet::modifyuser and
7678: lonnet::modify_student_enrollment
1.286 matthew 7679:
7680: Inputs:
7681:
7682: =over 4
7683:
7684: =item B<$udom> Students loncapa domain
7685:
7686: =item B<$uname> Students loncapa login name
7687:
7688: =item B<$uid> Students id/student number
7689:
7690: =item B<$umode> Students authentication mode
7691:
7692: =item B<$upass> Students password
7693:
7694: =item B<$first> Students first name
7695:
7696: =item B<$middle> Students middle name
7697:
7698: =item B<$last> Students last name
7699:
7700: =item B<$gene> Students generation
7701:
7702: =item B<$usec> Students section in course
7703:
7704: =item B<$end> Unix time of the roles expiration
7705:
7706: =item B<$start> Unix time of the roles start date
7707:
7708: =item B<$forceid> If defined, allow $uid to be changed
7709:
7710: =item B<$desiredhome> server to use as home server for student
7711:
7712: =back
1.297 matthew 7713:
7714: =item *
7715:
7716: modify_student_enrollment
7717:
7718: Change a students enrollment status in a class. The environment variable
7719: 'role.request.course' must be defined for this function to proceed.
7720:
7721: Inputs:
7722:
7723: =over 4
7724:
7725: =item $udom, students domain
7726:
7727: =item $uname, students name
7728:
7729: =item $uid, students user id
7730:
7731: =item $first, students first name
7732:
7733: =item $middle
7734:
7735: =item $last
7736:
7737: =item $gene
7738:
7739: =item $usec
7740:
7741: =item $end
7742:
7743: =item $start
7744:
7745: =back
7746:
1.191 harris41 7747:
7748: =item *
7749:
1.243 albertel 7750: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
7751: custom role; give a custom role to a user for the level given by URL. Specify
7752: name and domain of role author, and role name
1.191 harris41 7753:
7754: =item *
7755:
1.243 albertel 7756: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 7757:
7758: =item *
7759:
1.243 albertel 7760: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
7761:
7762: =back
7763:
7764: =head2 Course Infomation
7765:
7766: =over 4
1.191 harris41 7767:
7768: =item *
7769:
1.631 albertel 7770: coursedescription($courseid) : returns a hash of information about the
7771: specified course id, including all environment settings for the
7772: course, the description of the course will be in the hash under the
7773: key 'description'
1.191 harris41 7774:
7775: =item *
7776:
1.624 albertel 7777: resdata($name,$domain,$type,@which) : request for current parameter
7778: setting for a specific $type, where $type is either 'course' or 'user',
7779: @what should be a list of parameters to ask about. This routine caches
7780: answers for 5 minutes.
1.243 albertel 7781:
7782: =back
7783:
7784: =head2 Course Modification
7785:
7786: =over 4
1.191 harris41 7787:
7788: =item *
7789:
1.243 albertel 7790: writecoursepref($courseid,%prefs) : write preferences (environment
7791: database) for a course
1.191 harris41 7792:
7793: =item *
7794:
1.243 albertel 7795: createcourse($udom,$description,$url) : make/modify course
7796:
7797: =back
7798:
7799: =head2 Resource Subroutines
7800:
7801: =over 4
1.191 harris41 7802:
7803: =item *
7804:
1.243 albertel 7805: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 7806:
7807: =item *
7808:
1.243 albertel 7809: repcopy($filename) : subscribes to the requested file, and attempts to
7810: replicate from the owning library server, Might return
1.607 raeburn 7811: 'unavailable', 'not_found', 'forbidden', 'ok', or
7812: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 7813: resource. Expects the local filesystem pathname
7814: (/home/httpd/html/res/....)
7815:
7816: =back
7817:
7818: =head2 Resource Information
7819:
7820: =over 4
1.191 harris41 7821:
7822: =item *
7823:
1.243 albertel 7824: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
7825: a vairety of different possible values, $varname should be a request
7826: string, and the other parameters can be used to specify who and what
7827: one is asking about.
7828:
7829: Possible values for $varname are environment.lastname (or other item
7830: from the envirnment hash), user.name (or someother aspect about the
7831: user), resource.0.maxtries (or some other part and parameter of a
7832: resource)
1.204 albertel 7833:
7834: =item *
7835:
1.243 albertel 7836: directcondval($number) : get current value of a condition; reads from a state
7837: string
1.204 albertel 7838:
7839: =item *
7840:
1.243 albertel 7841: condval($condidx) : value of condition index based on state
1.204 albertel 7842:
7843: =item *
7844:
1.243 albertel 7845: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
7846: resource's metadata, $what should be either a specific key, or either
7847: 'keys' (to get a list of possible keys) or 'packages' to get a list of
7848: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
7849:
7850: this function automatically caches all requests
1.191 harris41 7851:
7852: =item *
7853:
1.243 albertel 7854: metadata_query($query,$custom,$customshow) : make a metadata query against the
7855: network of library servers; returns file handle of where SQL and regex results
7856: will be stored for query
1.191 harris41 7857:
7858: =item *
7859:
1.243 albertel 7860: symbread($filename) : return symbolic list entry (filename argument optional);
7861: returns the data handle
1.191 harris41 7862:
7863: =item *
7864:
1.243 albertel 7865: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 7866: a possible symb for the URL in $thisfn, and if is an encryypted
7867: resource that the user accessed using /enc/ returns a 1 on success, 0
7868: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 7869: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 7870:
1.191 harris41 7871:
7872: =item *
7873:
1.243 albertel 7874: symbclean($symb) : removes versions numbers from a symb, returns the
7875: cleaned symb
1.191 harris41 7876:
7877: =item *
7878:
1.243 albertel 7879: is_on_map($uri) : checks if the $uri is somewhere on the current
7880: course map, user must be in a course for it to work.
1.191 harris41 7881:
7882: =item *
7883:
1.243 albertel 7884: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 7885:
7886: =item *
7887:
1.243 albertel 7888: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
7889: a random seed, all arguments are optional, if they aren't sent it uses the
7890: environment to derive them. Note: if symb isn't sent and it can't get one
7891: from &symbread it will use the current time as its return value
1.191 harris41 7892:
7893: =item *
7894:
1.243 albertel 7895: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
7896: unfakeable, receipt
1.191 harris41 7897:
7898: =item *
7899:
1.620 albertel 7900: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 7901:
7902: =item *
7903:
1.243 albertel 7904: countacc($url) : count the number of accesses to a given URL
1.191 harris41 7905:
7906: =item *
7907:
1.243 albertel 7908: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 7909:
7910: =item *
7911:
1.243 albertel 7912: checkin($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 $tcrsid)
1.191 harris41 7913:
7914: =item *
7915:
1.243 albertel 7916: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 7917:
7918: =item *
7919:
1.243 albertel 7920: devalidate($symb) : devalidate temporary spreadsheet calculations,
7921: forcing spreadsheet to reevaluate the resource scores next time.
7922:
7923: =back
7924:
7925: =head2 Storing/Retreiving Data
7926:
7927: =over 4
1.191 harris41 7928:
7929: =item *
7930:
1.243 albertel 7931: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
7932: for this url; hashref needs to be given and should be a \%hashname; the
7933: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 7934: be derived from the env
1.191 harris41 7935:
7936: =item *
7937:
1.243 albertel 7938: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
7939: uses critical subroutine
1.191 harris41 7940:
7941: =item *
7942:
1.243 albertel 7943: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
7944: all args are optional
1.191 harris41 7945:
7946: =item *
7947:
1.717 albertel 7948: dumpstore($namespace,$udom,$uname,$regexp,$range) :
7949: dumps the complete (or key matching regexp) namespace into a hash
7950: ($udom, $uname, $regexp, $range are optional) for a namespace that is
7951: normally &store()ed into
7952:
7953: $range should be either an integer '100' (give me the first 100
7954: matching records)
7955: or be two integers sperated by a - with no spaces
7956: '30-50' (give me the 30th through the 50th matching
7957: records)
7958:
7959:
7960: =item *
7961:
7962: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
7963: replaces a &store() version of data with a replacement set of data
7964: for a particular resource in a namespace passed in the $storehash hash
7965: reference
7966:
7967: =item *
7968:
1.243 albertel 7969: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
7970: works very similar to store/cstore, but all data is stored in a
7971: temporary location and can be reset using tmpreset, $storehash should
7972: be a hash reference, returns nothing on success
1.191 harris41 7973:
7974: =item *
7975:
1.243 albertel 7976: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
7977: similar to restore, but all data is stored in a temporary location and
7978: can be reset using tmpreset. Returns a hash of values on success,
7979: error string otherwise.
1.191 harris41 7980:
7981: =item *
7982:
1.243 albertel 7983: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
7984: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 7985:
7986: =item *
7987:
1.243 albertel 7988: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
7989: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 7990:
7991: =item *
7992:
1.243 albertel 7993: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
7994: namesp ($udom and $uname are optional)
1.191 harris41 7995:
7996: =item *
7997:
1.702 albertel 7998: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 7999: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 8000: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 8001:
1.702 albertel 8002: $range should be either an integer '100' (give me the first 100
8003: matching records)
8004: or be two integers sperated by a - with no spaces
8005: '30-50' (give me the 30th through the 50th matching
8006: records)
1.449 matthew 8007: =item *
8008:
8009: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
8010: $store can be a scalar, an array reference, or if the amount to be
8011: incremented is > 1, a hash reference.
8012:
8013: ($udom and $uname are optional)
1.191 harris41 8014:
8015: =item *
8016:
1.243 albertel 8017: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
8018: ($udom and $uname are optional)
1.191 harris41 8019:
8020: =item *
8021:
1.243 albertel 8022: cput($namespace,$storehash,$udom,$uname) : critical put
8023: ($udom and $uname are optional)
1.191 harris41 8024:
8025: =item *
8026:
1.748 albertel 8027: newput($namespace,$storehash,$udom,$uname) :
8028:
8029: Attempts to store the items in the $storehash, but only if they don't
8030: currently exist, if this succeeds you can be certain that you have
8031: successfully created a new key value pair in the $namespace db.
8032:
8033:
8034: Args:
8035: $namespace: name of database to store values to
8036: $storehash: hashref to store to the db
8037: $udom: (optional) domain of user containing the db
8038: $uname: (optional) name of user caontaining the db
8039:
8040: Returns:
8041: 'ok' -> succeeded in storing all keys of $storehash
8042: 'key_exists: <key>' -> failed to anything out of $storehash, as at
8043: least <key> already existed in the db (other
8044: requested keys may also already exist)
8045: 'error: <msg>' -> unable to tie the DB or other erorr occured
8046: 'con_lost' -> unable to contact request server
8047: 'refused' -> action was not allowed by remote machine
8048:
8049:
8050: =item *
8051:
1.243 albertel 8052: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
8053: reference filled in from namesp (encrypts the return communication)
8054: ($udom and $uname are optional)
1.191 harris41 8055:
8056: =item *
8057:
1.243 albertel 8058: log($udom,$name,$home,$message) : write to permanent log for user; use
8059: critical subroutine
8060:
8061: =back
8062:
8063: =head2 Network Status Functions
8064:
8065: =over 4
1.191 harris41 8066:
8067: =item *
8068:
8069: dirlist($uri) : return directory list based on URI
8070:
8071: =item *
8072:
1.243 albertel 8073: spareserver() : find server with least workload from spare.tab
8074:
8075: =back
8076:
8077: =head2 Apache Request
8078:
8079: =over 4
1.191 harris41 8080:
8081: =item *
8082:
1.243 albertel 8083: ssi($url,%hash) : server side include, does a complete request cycle on url to
8084: localhost, posts hash
8085:
8086: =back
8087:
8088: =head2 Data to String to Data
8089:
8090: =over 4
1.191 harris41 8091:
8092: =item *
8093:
1.243 albertel 8094: hash2str(%hash) : convert a hash into a string complete with escaping and '='
8095: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 8096:
8097: =item *
8098:
1.243 albertel 8099: hashref2str($hashref) : convert a hashref into a string complete with
8100: escaping and '=' and '&' separators, supports elements that are
8101: arrayrefs and hashrefs
1.191 harris41 8102:
8103: =item *
8104:
1.243 albertel 8105: arrayref2str($arrayref) : convert an arrayref into a string complete
8106: with escaping and '&' separators, supports elements that are arrayrefs
8107: and hashrefs
1.191 harris41 8108:
8109: =item *
8110:
1.243 albertel 8111: str2hash($string) : convert string to hash using unescaping and
8112: splitting on '=' and '&', supports elements that are arrayrefs and
8113: hashrefs
1.191 harris41 8114:
8115: =item *
8116:
1.243 albertel 8117: str2array($string) : convert string to hash using unescaping and
8118: splitting on '&', supports elements that are arrayrefs and hashrefs
8119:
8120: =back
8121:
8122: =head2 Logging Routines
8123:
8124: =over 4
8125:
8126: These routines allow one to make log messages in the lonnet.log and
8127: lonnet.perm logfiles.
1.191 harris41 8128:
8129: =item *
8130:
1.243 albertel 8131: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 8132:
8133: =item *
8134:
1.243 albertel 8135: logthis() : append message to the normal lonnet.log file, it gets
8136: preiodically rolled over and deleted.
1.191 harris41 8137:
8138: =item *
8139:
1.243 albertel 8140: logperm() : append a permanent message to lonnet.perm.log, this log
8141: file never gets deleted by any automated portion of the system, only
8142: messages of critical importance should go in here.
8143:
8144: =back
8145:
8146: =head2 General File Helper Routines
8147:
8148: =over 4
1.191 harris41 8149:
8150: =item *
8151:
1.481 raeburn 8152: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
8153: (a) files in /uploaded
8154: (i) If a local copy of the file exists -
8155: compares modification date of local copy with last-modified date for
8156: definitive version stored on home server for course. If local copy is
8157: stale, requests a new version from the home server and stores it.
8158: If the original has been removed from the home server, then local copy
8159: is unlinked.
8160: (ii) If local copy does not exist -
8161: requests the file from the home server and stores it.
8162:
8163: If $caller is 'uploadrep':
8164: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
8165: for request for files originally uploaded via DOCS.
8166: - returns 'ok' if fresh local copy now available, -1 otherwise.
8167:
8168: Otherwise:
8169: This indicates a call from the content generation phase of the request.
8170: - returns the entire contents of the file or -1.
8171:
8172: (b) files in /res
8173: - returns the entire contents of a file or -1;
8174: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 8175:
1.712 albertel 8176:
8177: =item *
8178:
8179: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
8180: reference
8181:
8182: returns either a stat() list of data about the file or an empty list
8183: if the file doesn't exist or couldn't find out about it (connection
8184: problems or user unknown)
8185:
1.191 harris41 8186: =item *
8187:
1.243 albertel 8188: filelocation($dir,$file) : returns file system location of a file
8189: based on URI; meant to be "fairly clean" absolute reference, $dir is a
8190: directory that relative $file lookups are to looked in ($dir of /a/dir
8191: and a file of ../bob will become /a/bob)
1.191 harris41 8192:
8193: =item *
8194:
8195: hreflocation($dir,$file) : returns file system location or a URL; same as
8196: filelocation except for hrefs
8197:
8198: =item *
8199:
8200: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
8201:
1.243 albertel 8202: =back
8203:
1.608 albertel 8204: =head2 Usererfile file routines (/uploaded*)
8205:
8206: =over 4
8207:
8208: =item *
8209:
8210: userfileupload(): main rotine for putting a file in a user or course's
8211: filespace, arguments are,
8212:
1.620 albertel 8213: formname - required - this is the name of the element in $env where the
1.608 albertel 8214: filename, and the contents of the file to create/modifed exist
1.620 albertel 8215: the filename is in $env{'form.'.$formname.'.filename'} and the
8216: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 8217: coursedoc - if true, store the file in the course of the active role
8218: of the current user
8219: subdir - required - subdirectory to put the file in under ../userfiles/
8220: if undefined, it will be placed in "unknown"
8221:
8222: (This routine calls clean_filename() to remove any dangerous
8223: characters from the filename, and then calls finuserfileupload() to
8224: complete the transaction)
8225:
8226: returns either the url of the uploaded file (/uploaded/....) if successful
8227: and /adm/notfound.html if unsuccessful
8228:
8229: =item *
8230:
8231: clean_filename(): routine for cleaing a filename up for storage in
8232: userfile space, argument is:
8233:
8234: filename - proposed filename
8235:
8236: returns: the new clean filename
8237:
8238: =item *
8239:
8240: finishuserfileupload(): routine that creaes and sends the file to
8241: userspace, probably shouldn't be called directly
8242:
8243: docuname: username or courseid of destination for the file
8244: docudom: domain of user/course of destination for the file
8245: formname: same as for userfileupload()
8246: fname: filename (inculding subdirectories) for the file
8247:
8248: returns either the url of the uploaded file (/uploaded/....) if successful
8249: and /adm/notfound.html if unsuccessful
8250:
8251: =item *
8252:
8253: renameuserfile(): renames an existing userfile to a new name
8254:
8255: Args:
8256: docuname: username or courseid of destination for the file
8257: docudom: domain of user/course of destination for the file
8258: old: current file name (including any subdirs under userfiles)
8259: new: desired file name (including any subdirs under userfiles)
8260:
8261: =item *
8262:
8263: mkdiruserfile(): creates a directory is a userfiles dir
8264:
8265: Args:
8266: docuname: username or courseid of destination for the file
8267: docudom: domain of user/course of destination for the file
8268: dir: dir to create (including any subdirs under userfiles)
8269:
8270: =item *
8271:
8272: removeuserfile(): removes a file that exists in userfiles
8273:
8274: Args:
8275: docuname: username or courseid of destination for the file
8276: docudom: domain of user/course of destination for the file
8277: fname: filname to delete (including any subdirs under userfiles)
8278:
8279: =item *
8280:
8281: removeuploadedurl(): convience function for removeuserfile()
8282:
8283: Args:
8284: url: a full /uploaded/... url to delete
8285:
1.747 albertel 8286: =item *
8287:
8288: get_portfile_permissions():
8289: Args:
8290: domain: domain of user or course contain the portfolio files
8291: user: name of user or num of course contain the portfolio files
8292: Returns:
8293: hashref of a dump of the proper file_permissions.db
8294:
8295:
8296: =item *
8297:
8298: get_access_controls():
8299:
8300: Args:
8301: current_permissions: the hash ref returned from get_portfile_permissions()
8302: group: (optional) the group you want the files associated with
8303: file: (optional) the file you want access info on
8304:
8305: Returns:
1.749 raeburn 8306: a hash (keys are file names) of hashes containing
8307: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
8308: values are XML containing access control settings (see below)
1.747 albertel 8309:
8310: Internal notes:
8311:
1.749 raeburn 8312: access controls are stored in file_permissions.db as key=value pairs.
8313: key -> path to file/file_name\0uniqueID:scope_end_start
8314: where scope -> public,guest,course,group,domains or users.
8315: end -> UNIX time for end of access (0 -> no end date)
8316: start -> UNIX time for start of access
8317:
8318: value -> XML description of access control
8319: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
8320: <start></start>
8321: <end></end>
8322:
8323: <password></password> for scope type = guest
8324:
8325: <domain></domain> for scope type = course or group
8326: <number></number>
8327: <roles id="">
8328: <role></role>
8329: <access></access>
8330: <section></section>
8331: <group></group>
8332: </roles>
8333:
8334: <dom></dom> for scope type = domains
8335:
8336: <users> for scope type = users
8337: <user>
8338: <uname></uname>
8339: <udom></udom>
8340: </user>
8341: </users>
8342: </scope>
8343:
8344: Access data is also aggregated for each file in an additional key=value pair:
8345: key -> path to file/file_name\0accesscontrol
8346: value -> reference to hash
8347: hash contains key = value pairs
8348: where key = uniqueID:scope_end_start
8349: value = UNIX time record was last updated
8350:
8351: Used to improve speed of look-ups of access controls for each file.
8352:
8353: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
8354:
8355: modify_access_controls():
8356:
8357: Modifies access controls for a portfolio file
8358: Args
8359: 1. file name
8360: 2. reference to hash of required changes,
8361: 3. domain
8362: 4. username
8363: where domain,username are the domain of the portfolio owner
8364: (either a user or a course)
8365:
8366: Returns:
8367: 1. result of additions or updates ('ok' or 'error', with error message).
8368: 2. result of deletions ('ok' or 'error', with error message).
8369: 3. reference to hash of any new or updated access controls.
8370: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
8371: key = integer (inbound ID)
8372: value = uniqueID
1.747 albertel 8373:
1.608 albertel 8374: =back
8375:
1.243 albertel 8376: =head2 HTTP Helper Routines
8377:
8378: =over 4
8379:
1.191 harris41 8380: =item *
8381:
8382: escape() : unpack non-word characters into CGI-compatible hex codes
8383:
8384: =item *
8385:
8386: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
8387:
1.243 albertel 8388: =back
8389:
8390: =head1 PRIVATE SUBROUTINES
8391:
8392: =head2 Underlying communication routines (Shouldn't call)
8393:
8394: =over 4
8395:
8396: =item *
8397:
8398: subreply() : tries to pass a message to lonc, returns con_lost if incapable
8399:
8400: =item *
8401:
8402: reply() : uses subreply to send a message to remote machine, logs all failures
8403:
8404: =item *
8405:
8406: critical() : passes a critical message to another server; if cannot
8407: get through then place message in connection buffer directory and
8408: returns con_delayed, if incapable of saving message, returns
8409: con_failed
8410:
8411: =item *
8412:
8413: reconlonc() : tries to reconnect lonc client processes.
8414:
8415: =back
8416:
8417: =head2 Resource Access Logging
8418:
8419: =over 4
8420:
8421: =item *
8422:
8423: flushcourselogs() : flush (save) buffer logs and access logs
8424:
8425: =item *
8426:
8427: courselog($what) : save message for course in hash
8428:
8429: =item *
8430:
8431: courseacclog($what) : save message for course using &courselog(). Perform
8432: special processing for specific resource types (problems, exams, quizzes, etc).
8433:
1.191 harris41 8434: =item *
8435:
8436: goodbye() : flush course logs and log shutting down; it is called in srm.conf
8437: as a PerlChildExitHandler
1.243 albertel 8438:
8439: =back
8440:
8441: =head2 Other
8442:
8443: =over 4
8444:
8445: =item *
8446:
8447: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 8448:
8449: =back
8450:
8451: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonnet.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / lonnet / perl