1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.304 2014/05/20 20:36:16 musolffc Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: =pod
31:
32: =head1 NAME
33:
34: Apache::lonroles - User Roles Screen
35:
36: =head1 SYNOPSIS
37:
38: Invoked by /etc/httpd/conf/srm.conf:
39:
40: <Location /adm/roles>
41: PerlAccessHandler Apache::lonacc
42: SetHandler perl-script
43: PerlHandler Apache::lonroles
44: ErrorDocument 403 /adm/login
45: ErrorDocument 500 /adm/errorhandler
46: </Location>
47:
48: =head1 OVERVIEW
49:
50: =head2 Choosing Roles
51:
52: C<lonroles> is a handler that allows a user to switch roles in
53: mid-session. LON-CAPA attempts to work with "No Role Specified", the
54: default role that a user has before selecting a role, as widely as
55: possible, but certain handlers for example need specification which
56: course they should act on, etc. Both in this scenario, and when the
57: handler determines via C<lonnet>'s C<&allowed> function that a certain
58: action is not allowed, C<lonroles> is used as error handler. This
59: allows the user to select another role which may have permission to do
60: what they were trying to do.
61:
62: =begin latex
63:
64: \begin{figure}
65: \begin{center}
66: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
67: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
68: \end{center}
69: \end{figure}
70:
71: =end latex
72:
73: =head2 Role Initialization
74:
75: The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
76:
77: =head1 INTRODUCTION
78:
79: This module enables a user to select what role he wishes to
80: operate under (instructor, student, teaching assistant, course
81: coordinator, etc). These roles are pre-established by the actions
82: of upper-level users.
83:
84: This is part of the LearningOnline Network with CAPA project
85: described at http://www.lon-capa.org.
86:
87: =head1 HANDLER SUBROUTINE
88:
89: This routine is called by Apache and mod_perl.
90:
91: =over 4
92:
93: =item *
94:
95: Roles Initialization (yes/no)
96:
97: =item *
98:
99: Get Error Message from Environment
100:
101: =item *
102:
103: Who is this?
104:
105: =item *
106:
107: Generate Page Output
108:
109: =item *
110:
111: Choice or no choice
112:
113: =item *
114:
115: Table
116:
117: =item *
118:
119: Privileges
120:
121: =back
122:
123: =cut
124:
125:
126: package Apache::lonroles;
127:
128: use strict;
129: use Apache::lonnet;
130: use Apache::lonuserstate();
131: use Apache::Constants qw(:common REDIRECT);
132: use Apache::File();
133: use Apache::lonmenu;
134: use Apache::loncommon;
135: use Apache::lonhtmlcommon;
136: use Apache::lonannounce;
137: use Apache::lonlocal;
138: use Apache::lonpageflip();
139: use Apache::lonnavdisplay();
140: use Apache::loncoursequeueadmin;
141: use Apache::longroup;
142: use Apache::lonrss;
143: use GDBM_File;
144: use LONCAPA qw(:DEFAULT :match);
145: use HTML::Entities;
146:
147:
148: sub redirect_user {
149: my ($r,$title,$url,$msg) = @_;
150: $msg = $title if (! defined($msg));
151: &Apache::loncommon::content_type($r,'text/html');
152: &Apache::loncommon::no_cache($r);
153: $r->send_http_header;
154:
155: # Breadcrumbs
156: my $brcrum = [{'href' => $url,
157: 'text' => 'Switching Role'},];
158: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
159: {'redirect' => [1,$url],
160: 'bread_crumbs' => $brcrum,});
161: my $end_page = &Apache::loncommon::end_page();
162:
163: # Note to style police:
164: # This must only replace the spaces, nothing else, or it bombs elsewhere.
165: $url=~s/ /\%20/g;
166: $r->print(<<ENDREDIR);
167: $start_page
168: <p>$msg</p>
169: $end_page
170: ENDREDIR
171: return;
172: }
173:
174: sub error_page {
175: my ($r,$error,$dest)=@_;
176: &Apache::loncommon::content_type($r,'text/html');
177: &Apache::loncommon::no_cache($r);
178: $r->send_http_header;
179: return OK if $r->header_only;
180: # Breadcrumbs
181: my $brcrum = [{'href' => $dest,
182: 'text' => 'Problems during Course Initialization'},];
183: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
184: undef,
185: {'bread_crumbs' => $brcrum,})
186: );
187: $r->print(
188: '<script type="text/javascript">'.
189: '// <![CDATA['.
190: &Apache::lonmenu::rawconfig().
191: '// ]]>'.
192: '</script>'.
193: '<p class="LC_error">'.&mt('The following problems occurred:').
194: '<br />'.
195: $error.
196: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
197: );
198: $r->print(&Apache::loncommon::end_page());
199: }
200:
201: sub handler {
202:
203: my $r = shift;
204:
205: # Check for critical messages and redirect if present.
206: print STDERR "crit check\n";
207: my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
208: print STDERR "(redirect, url) = $redirect, $url\n";
209: if ($redirect) {
210: print STDERR "check passed. Redirecting to $url\n";
211: &Apache::loncommon::content_type($r,'text/html');
212: $r->header_out(Location => $url);
213: return REDIRECT;
214: }
215:
216: my $now=time;
217: my $then=$env{'user.login.time'};
218: my $refresh=$env{'user.refresh.time'};
219: my $update=$env{'user.update.time'};
220: if (!$refresh) {
221: $refresh = $then;
222: }
223: if (!$update) {
224: $update = $then;
225: }
226:
227: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
228:
229: # -------------------------------------------------- Check if setting hot list
230: my $hotlist;
231: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
232: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
233: }
234:
235: # -------------------------------------------------------- Check for new roles
236: my $updateresult;
237: if ($env{'form.state'} eq 'doupdate') {
238: my $show_course=&Apache::loncommon::show_course();
239: my $checkingtxt;
240: if ($show_course) {
241: $checkingtxt = &mt('Checking for new courses ...');
242: } else {
243: $checkingtxt = &mt('Checking for new roles ...');
244: }
245: $updateresult = $checkingtxt;
246: $updateresult .= &update_session_roles();
247: &Apache::lonnet::appenv({'user.update.time' => $now});
248: $update = $now;
249: &Apache::loncoursequeueadmin::reqauthor_check();
250: }
251:
252: # -------------------------------------------------- Check for author requests
253: my $reqauthor;
254: if ($env{'form.state'} eq 'requestauthor') {
255: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
256: }
257:
258: my $envkey;
259: my %dcroles = ();
260: my $numdc = &check_fordc(\%dcroles,$update,$then);
261: #my $loncaparev = $Apache::lonnet::perlvar{'lonVersion'};
262: my $loncaparev = $r->dir_config('lonVersion');
263: print STDERR "loncaparev set ||$loncaparev||\n";
264:
265: # ================================================================== Roles Init
266: if ($env{'form.selectrole'}) {
267:
268: my $locknum=&Apache::lonnet::get_locks();
269: if ($locknum) { return 409; }
270:
271: if ($env{'form.newrole'}) {
272: $env{'form.'.$env{'form.newrole'}}=1;
273: }
274: if ($env{'request.course.id'}) {
275: # Check if user is CC trying to select a course role
276: if ($env{'form.switchrole'}) {
277: my $switch_is_active;
278: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
279: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
280: if (!$end || $end > $now) {
281: if (!$start || $start < $update) {
282: $switch_is_active = 1;
283: }
284: }
285: }
286: unless ($switch_is_active) {
287: &adhoc_course_role($refresh,$update,$then);
288: }
289: }
290: my %temp=('logout_'.$env{'request.course.id'} => time);
291: &Apache::lonnet::put('email_status',\%temp);
292: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
293: }
294: &Apache::lonnet::appenv({"request.course.id" => '',
295: "request.course.fn" => '',
296: "request.course.uri" => '',
297: "request.course.sec" => '',
298: "request.course.tied" => '',
299: "request.role" => 'cm',
300: "request.role.adv" => $env{'user.adv'},
301: "request.role.domain" => $env{'user.domain'}});
302: # Check if user is a DC trying to enter a course or author space and needs privs to be created
303: if ($numdc > 0) {
304: foreach my $envkey (keys(%env)) {
305: # Is this an ad-hoc Coordinator role?
306: if (my ($ccrole,$domain,$coursenum) =
307: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
308: if ($dcroles{$domain}) {
309: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
310: $update,$refresh,$now,$ccrole)) {
311: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
312: }
313: }
314: last;
315: }
316: # Is this an ad-hoc CA-role?
317: if (my ($domain,$user) =
318: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
319: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
320: delete($env{$envkey});
321: $env{'form.au./'.$domain.'/'} = 1;
322: my ($server_status,$home) = &check_author_homeserver($user,$domain);
323: if ($server_status eq 'switchserver') {
324: my $trolecode = 'au./'.$domain.'/';
325: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
326: $r->internal_redirect($switchserver);
327: return OK;
328: }
329: last;
330: }
331: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
332: if (((($castart) && ($castart < $now)) || !$castart) &&
333: ((!$caend) || (($caend) && ($caend > $now)))) {
334: my ($server_status,$home) = &check_author_homeserver($user,$domain);
335: if ($server_status eq 'switchserver') {
336: my $trolecode = 'ca./'.$domain.'/'.$user;
337: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
338: $r->internal_redirect($switchserver);
339: return OK;
340: }
341: last;
342: }
343: }
344: # Check if author blocked ca-access
345: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
346: if ($blocked{'domcoord.author'} eq 'blocked') {
347: delete($env{$envkey});
348: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
349: last;
350: }
351: if ($dcroles{$domain}) {
352: my ($server_status,$home) = &check_author_homeserver($user,$domain);
353: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
354: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
355: $refresh,$now,'ca');
356: if ($server_status eq 'switchserver') {
357: my $trolecode = 'ca./'.$domain.'/'.$user;
358: my $switchserver = '/adm/switchserver?'
359: .'otherserver='.$home.'&role='.$trolecode;
360: $r->internal_redirect($switchserver);
361: return OK;
362: }
363: } else {
364: delete($env{$envkey});
365: }
366: } else {
367: delete($env{$envkey});
368: }
369: last;
370: }
371: }
372: }
373:
374: foreach $envkey (keys(%env)) {
375: next if ($envkey!~/^user\.role\./);
376: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
377: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
378: \$trolecode,\$tstatus,\$tstart,\$tend);
379: if ($env{'form.'.$trolecode}) {
380: if ($tstatus eq 'is') {
381: $where=~s/^\///;
382: my ($cdom,$cnum,$csec)=split(/\//,$where);
383: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
384: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
385: my @ids = &Apache::lonnet::current_machine_ids();
386: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
387: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
388: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
389: my ($switchserver,$switchwarning) =
390: &check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,$curr_reqd_hash{'internal.releaserequired'});
391: if ($switchwarning ne '' || $switchserver ne '') {
392: &Apache::loncommon::content_type($r,'text/html');
393: &Apache::loncommon::no_cache($r);
394: $r->send_http_header;
395: my $end_page=&Apache::loncommon::end_page();
396: $r->print(&Apache::loncommon::start_page('Selected course unavailable on this server').
397: '<p class="LC_warning">');
398: if ($switchwarning) {
399: $r->print($switchwarning.'<br /><a href="/adm/roles">');
400: if (&Apache::loncommon::show_course()) {
401: $r->print(&mt('Display courses'));
402: } else {
403: $r->print(&mt('Display roles'));
404: }
405: $r->print('</a>');
406: } elsif ($switchserver) {
407: $r->print(&mt('This course requires a newer version of LON-CAPA than is installed on this server.').
408: '<br />'.
409: '<a href="/adm/switchserver?'.$switchserver.'">'.
410: &mt('Switch Server').
411: '</a>');
412: }
413: $r->print('</p>'.&Apache::loncommon::end_page());
414: return OK;
415: }
416: }
417: }
418: }
419: # check for course groups
420: my %coursegroups = &Apache::lonnet::get_active_groups(
421: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
422: my $cgrps = join(':',keys(%coursegroups));
423:
424: # store role if recent_role list being kept
425: if ($env{'environment.recentroles'}) {
426: my %frozen_roles =
427: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
428: &Apache::lonhtmlcommon::store_recent('roles',
429: $trolecode,' ',$frozen_roles{$trolecode});
430: }
431:
432:
433: # check for keyed access
434: if (($role eq 'st') &&
435: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
436: # who is key authority?
437: my $authdom=$cdom;
438: my $authnum=$cnum;
439: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
440: ($authnum,$authdom)=
441: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
442: }
443: # check with key authority
444: unless (&Apache::lonnet::validate_access_key(
445: $env{'environment.key.'.$cdom.'_'.$cnum},
446: $authdom,$authnum)) {
447: # there is no valid key
448: if ($env{'form.newkey'}) {
449: # student attempts to register a new key
450: &Apache::loncommon::content_type($r,'text/html');
451: &Apache::loncommon::no_cache($r);
452: $r->send_http_header;
453: my $swinfo=&Apache::lonmenu::rawconfig();
454: my $start_page=&Apache::loncommon::start_page
455: ('Verifying Access Key to Unlock this Course');
456: my $end_page=&Apache::loncommon::end_page();
457: my $buttontext=&mt('Enter Course');
458: my $message=&mt('Successfully registered key');
459: my $assignresult=
460: &Apache::lonnet::assign_access_key(
461: $env{'form.newkey'},
462: $authdom,$authnum,
463: $cdom,$cnum,
464: $env{'user.domain'},
465: $env{'user.name'},
466: &mt('Assigned from [_1] at [_2] for [_3]'
467: ,$ENV{'REMOTE_ADDR'}
468: ,&Apache::lonlocal::locallocaltime()
469: ,$trolecode)
470: );
471: unless ($assignresult eq 'ok') {
472: $assignresult=~s/^error\:\s*//;
473: $message=&mt($assignresult).
474: '<br /><a href="/adm/logout">'.
475: &mt('Logout').'</a>';
476: $buttontext=&mt('Re-Enter Key');
477: }
478: $r->print(<<ENDENTEREDKEY);
479: $start_page
480: <script type="text/javascript">
481: // <![CDATA[
482: $swinfo
483: // ]]>
484: </script>
485: <form action="" method="post">
486: <input type="hidden" name="selectrole" value="1" />
487: <input type="hidden" name="$trolecode" value="1" />
488: <span class="LC_fontsize_large">$message</span><br />
489: <input type="submit" value="$buttontext" />
490: </form>
491: $end_page
492: ENDENTEREDKEY
493: return OK;
494: } else {
495: # print form to enter a new key
496: &Apache::loncommon::content_type($r,'text/html');
497: &Apache::loncommon::no_cache($r);
498: $r->send_http_header;
499: my $swinfo=&Apache::lonmenu::rawconfig();
500: my $start_page=&Apache::loncommon::start_page
501: ('Enter Access Key to Unlock this Course');
502: my $end_page=&Apache::loncommon::end_page();
503: $r->print(<<ENDENTERKEY);
504: $start_page
505: <script type="text/javascript">
506: // <![CDATA[
507: $swinfo
508: // ]]>
509: </script>
510: <form action="" method="post">
511: <input type="hidden" name="selectrole" value="1" />
512: <input type="hidden" name="$trolecode" value="1" />
513: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
514: <input type="submit" value="Enter key" />
515: </form>
516: $end_page
517: ENDENTERKEY
518: return OK;
519: }
520: }
521: }
522: &Apache::lonnet::log($env{'user.domain'},
523: $env{'user.name'},
524: $env{'user.home'},
525: "Role ".$trolecode);
526:
527: &Apache::lonnet::appenv(
528: {'request.role' => $trolecode,
529: 'request.role.domain' => $cdom,
530: 'request.course.sec' => $csec,
531: 'request.course.groups' => $cgrps});
532: my $tadv=0;
533:
534: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
535: my $msg;
536: my ($furl,$ferr)=
537: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
538: unless ($ferr) {
539: unless (($env{'form.switchrole'}) ||
540: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
541: &Apache::lonnet::put('nohist_crslastlogin',
542: {$env{'user.name'}.':'.$env{'user.domain'}.
543: ':'.$csec.':'.$role => $now},$cdom,$cnum);
544: }
545: my ($feeds,$syllabus_time);
546: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
547: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
548: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
549: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
550: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
551: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
552: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
553: $syllabus_time = $syllabus{'uploaded.lastmodified'};
554: if ($syllabus_time) {
555: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
556: }
557: }
558: }
559: }
560: if (($env{'form.orgurl'}) &&
561: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
562: ($env{'form.orgurl'} ne '/adm/roles')) {
563: my $dest=$env{'form.orgurl'};
564: if ($env{'form.symb'}) {
565: if ($dest =~ /\?/) {
566: $dest .= '&';
567: } else {
568: $dest .= '?';
569: }
570: $dest .= 'symb='.$env{'form.symb'};
571: }
572: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
573: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
574: if (($ferr) && ($tadv)) {
575: &error_page($r,$ferr,$dest);
576: } else {
577: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
578: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
579: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
580: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
581: $cdom.'_'.$cnum);
582: }
583: }
584: $r->internal_redirect($dest);
585: }
586: return OK;
587: } else {
588: if (!$env{'request.course.id'}) {
589: &Apache::lonnet::appenv(
590: {"request.course.id" => $cdom.'_'.$cnum});
591: $furl='/adm/roles?tryagain=1';
592: $msg='<p><span class="LC_error">'
593: .&mt('Could not initialize [_1] at this time.',
594: $env{'course.'.$cdom.'_'.$cnum.'.description'})
595: .'</span></p>'
596: .'<p>'.&mt('Please try again.').'</p>'
597: .'<p>'.$ferr.'</p>';
598: }
599: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
600: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
601:
602: if (($ferr) && ($tadv)) {
603: &error_page($r,$ferr,$furl);
604: } else {
605: # Check to see if the user is a CC entering a course
606: # for the first time
607: if ((($role eq 'cc') || ($role eq 'co'))
608: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
609: $furl = "/adm/helper/course.initialization.helper";
610: # Send the user to the course they selected
611: } elsif ($env{'request.course.id'}) {
612: my ($dest,$destsymb,$checkenc);
613: $dest = $env{'form.destinationurl'};
614: $destsymb = $env{'form.destsymb'};
615: if ($dest ne '') {
616: if ($env{'form.switchrole'}) {
617: if ($destsymb ne '') {
618: if ($destsymb !~ m{^/enc/}) {
619: unless ($env{'request.role.adv'}) {
620: $checkenc = 1;
621: }
622: }
623: }
624: if ($dest =~ m{^/enc/}) {
625: if ($env{'request.role.adv'}) {
626: $dest = &Apache::lonenc::unencrypted($dest);
627: if ($destsymb eq '') {
628: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
629: $destsymb = &unescape($destsymb);
630: }
631: }
632: } else {
633: if ($destsymb eq '') {
634: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
635: $destsymb = &unescape($destsymb);
636: }
637: unless ($env{'request.role.adv'}) {
638: $checkenc = 1;
639: }
640: }
641: if (($checkenc) && ($destsymb ne '')) {
642: my ($encstate,$unencsymb,$res);
643: $unencsymb = &Apache::lonnet::symbclean($destsymb);
644: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
645: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
646: if ($encstate) {
647: if (($dest ne '') && ($dest !~ m{^/enc/})) {
648: $dest=&Apache::lonenc::encrypted($dest);
649: }
650: }
651: }
652: }
653: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
654: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
655: my $esc_symb = &escape($destsymb);
656: $dest .= '?symb='.$esc_symb;
657: }
658: }
659: &redirect_user($r, &mt('Entering [_1]',
660: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
661: $dest, $msg);
662: return OK;
663: }
664: if (&Apache::lonnet::allowed('whn',
665: $env{'request.course.id'})
666: || &Apache::lonnet::allowed('whn',
667: $env{'request.course.id'}.'/'
668: .$env{'request.course.sec'})
669: ) {
670: my $startpage = &courseloadpage($env{'request.course.id'});
671: unless ($startpage eq 'firstres') {
672: $msg = &mt('Entering [_1] ...',
673: $env{'course.'.$env{'request.course.id'}.'.description'});
674: &redirect_user($r, &mt('New in course'),
675: '/adm/whatsnew?refpage=start', $msg);
676: return OK;
677: }
678: }
679: }
680: # Are we allowed to look at the first resource?
681: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
682: # If it's an external resource,
683: # strip off the symb argument and possible query
684: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
685: # Unencode $symb
686: $symb = &unescape($symb);
687: # Then check for permission
688: if (!&Apache::lonnet::allowed('bre',$exturl,$symb)) {
689: $furl = &Apache::lonpageflip::first_accessible_resource();
690: }
691: # For other resources just check for permission
692: } elsif (!&Apache::lonnet::allowed('bre',$furl)) {
693: $furl = &Apache::lonpageflip::first_accessible_resource();
694: }
695:
696: $msg = &mt('Entering [_1] ...',
697: $env{'course.'.$cdom.'_'.$cnum.'.description'});
698: &redirect_user($r, &mt('Entering [_1]',
699: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
700: $furl, $msg);
701: }
702: return OK;
703: }
704: }
705: #
706: # Send the user to the construction space they selected
707: if ($role =~ /^(au|ca|aa)$/) {
708: my $redirect_url = '/priv/';
709: if ($role eq 'au') {
710: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
711: } else {
712: $redirect_url .= $where;
713: }
714: $redirect_url .= '/';
715: &redirect_user($r,&mt('Entering Authoring Space'),
716: $redirect_url);
717: return OK;
718: }
719: if ($role eq 'dc') {
720: my $redirect_url = '/adm/menu/';
721: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
722: $redirect_url);
723: return OK;
724: }
725: if ($role eq 'sc') {
726: my $redirect_url = '/adm/grades?command=scantronupload';
727: &redirect_user($r,&mt('Loading Data Upload Page'),
728: $redirect_url);
729: return OK;
730: }
731: }
732: }
733: }
734: }
735:
736:
737: # =============================================================== No Roles Init
738:
739: &Apache::loncommon::content_type($r,'text/html');
740: &Apache::loncommon::no_cache($r);
741: $r->send_http_header;
742: return OK if $r->header_only;
743:
744: my $crumbtext = 'User Roles';
745: my $pagetitle = 'My Roles';
746: my $recent = &mt('Recent Roles');
747: my $standby = &mt('Role selected. Please stand by.');
748: my $show_course=&Apache::loncommon::show_course();
749: if ($show_course) {
750: $crumbtext = 'Courses';
751: $pagetitle = 'My Courses';
752: $recent = &mt('Recent Courses');
753: $standby = &mt('Course selected. Please stand by.');
754: }
755: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
756:
757: my %roles_in_env;
758: my $showcount = &roles_from_env(\%roles_in_env,$update);
759:
760: my $swinfo=&Apache::lonmenu::rawconfig();
761: my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum});
762: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
763: my $cattype = 'std';
764: if ($domdefs{'catauth'}) {
765: $cattype = $domdefs{'catauth'};
766: }
767: my $funcs = &get_roles_functions($showcount,$cattype);
768: $standby=~s/\n/\\n/g;
769: my $noscript='<br /><span class="LC_error">'.&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.').'<br />'.&mt('As this is not the case, most functionality in the system will be unavailable.').'</span><br />';
770:
771: $r->print(<<ENDHEADER);
772: $start_page
773: $funcs
774: <noscript>
775: $noscript
776: </noscript>
777: <script type="text/javascript">
778: // <![CDATA[
779: $swinfo
780: window.focus();
781:
782: active=true;
783:
784: function enterrole (thisform,rolecode,buttonname) {
785: if (active) {
786: active=false;
787: document.title='$standby';
788: window.status='$standby';
789: thisform.newrole.value=rolecode;
790: thisform.submit();
791: } else {
792: alert('$standby');
793: }
794: }
795:
796: function rolesView (caller) {
797: if ((caller == 'showall') || (caller == 'noshowall')) {
798: document.rolechoice.display.value = caller;
799: } else {
800: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
801: (caller == 'queued')) {
802: document.rolechoice.state.value = caller;
803: }
804: }
805: document.rolechoice.selectrole.value='';
806: document.rolechoice.submit();
807: }
808:
809: // ]]>
810: </script>
811: ENDHEADER
812:
813: # ------------------------------------------ Get Error Message from Environment
814:
815: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
816: if ($env{'user.error.msg'}) {
817: $r->log_reason(
818: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
819: }
820:
821: # ------------------------------------------------- Can this user re-init, etc?
822:
823: my $advanced=$env{'user.adv'};
824: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
825: my $tryagain=$env{'form.tryagain'};
826: my $reinit=$env{'user.reinit'};
827: delete $env{'user.reinit'};
828:
829: # -------------------------------------------------------- Generate Page Output
830: # --------------------------------------------------------------- Error Header?
831: if ($error) {
832: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
833: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
834: if ($priv ne '') {
835: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
836: }
837: if ($fn ne '') {
838: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
839: }
840: if ($msg ne '') {
841: $r->print(&mt('Action : ').$msg."\n");
842: }
843: $r->print("</pre><hr />");
844: my $url=$fn;
845: my $last;
846: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
847: &GDBM_READER(),0640)) {
848: $last=$hash{'last_known'};
849: untie(%hash);
850: }
851: if ($last) { $fn.='?symb='.&escape($last); }
852:
853: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
854: &Apache::lonenc::check_encrypt($fn));
855: } else {
856: if ($env{'user.error.msg'}) {
857: if ($reinit) {
858: $r->print(
859: '<h3><span class="LC_error">'.
860: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
861: } else {
862: $r->print(
863: '<h3><span class="LC_error">'.
864: &mt('You need to choose another user role or enter a specific course or community for this function.').
865: '</span></h3>');
866: }
867: }
868: }
869: if ($nochoose) {
870: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
871: &mt('This action is currently not authorized.').'</span>'.
872: &Apache::loncommon::end_page());
873: return OK;
874: } else {
875: if ($updateresult || $reqauthor || $hotlist) {
876: my $showresult = '<div>';
877: if ($updateresult) {
878: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
879: }
880: if ($reqauthor) {
881: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
882: }
883: if ($hotlist) {
884: $showresult .= $hotlist;
885: }
886: $showresult .= '</div>';
887: $r->print($showresult);
888: } elsif ($env{'form.state'} eq 'queued') {
889: $r->print(&get_queued());
890: }
891: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
892: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
893: }
894: my $display = ($env{'form.display'} =~ /^(showall)$/);
895: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
896: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
897: $r->print('<input type="hidden" name="selectrole" value="1" />');
898: $r->print('<input type="hidden" name="newrole" value="" />');
899: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
900: $r->print('<input type="hidden" name="state" value="" />');
901: }
902: $r->rflush();
903:
904: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
905: my ($countactive,$countfuture,$inrole,$possiblerole) =
906: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
907: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
908: $refresh = $now;
909: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
910: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'})) {
911: if ($countactive > 0) {
912: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
913: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
914: $r->print(
915: '<p>'
916: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
917: .' to view all [_5] LON-CAPA courses and communities.'
918: ,'<b>'
919: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
920: ,'</a>'
921: ,'</b>'
922: ,'"'.$domdesc.'"')
923: .'<br />'
924: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
925: .' you may be able to enroll if self-enrollment is permitted.'
926: ,'<b>','</b>')
927: .'</p>'
928: );
929: }
930: }
931:
932: # No active roles
933: if ($countactive==0) {
934: if ($inrole) {
935: $r->print('<h2>'.&mt('Currently no additional roles, courses or communities').'</h2>');
936: } else {
937: $r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');
938: }
939: &requestcourse_advice($r,$cattype);
940: $r->print('</form>');
941: if ($countfuture) {
942: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
943: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
944: $nochoose);
945: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
946: \%roletext);
947: my $tremark='';
948: my $tbg;
949: if ($env{'request.role'} eq 'cm') {
950: $tbg="LC_roles_selected";
951: $tremark=&mt('Currently selected.').' ';
952: } else {
953: $tbg="LC_roles_is";
954: }
955: $r->print(&Apache::loncommon::start_data_table_row()
956: .'<td class="'.$tbg.'"> </td>'
957: .'<td colspan="3">'
958: .&mt('No role specified')
959: .'</td>'
960: .'<td>'.$tremark.' </td>'
961: .&Apache::loncommon::end_data_table_row()
962: );
963:
964: $r->print(&Apache::loncommon::end_data_table());
965: }
966: $r->print(&Apache::loncommon::end_page());
967: return OK;
968: }
969: # ----------------------------------------------------------------------- Table
970:
971: if ($numdc > 0) {
972: $r->print(&coursepick_jscript());
973: $r->print(&Apache::loncommon::coursebrowser_javascript().
974: &Apache::loncommon::authorbrowser_javascript());
975: }
976:
977: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
978: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
979: }
980: if ($env{'form.destinationurl'}) {
981: $r->print('<input type="hidden" name="destinationurl" value="'.
982: $env{'form.destinationurl'}.'" />');
983: if ($env{'form.destsymb'} ne '') {
984: $r->print('<input type="hidden" name="destsymb" value="'.
985: $env{'form.destsymb'}.'" />');
986: }
987: }
988:
989: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
990: if ($env{'environment.recentroles'}) {
991: my %recent_roles =
992: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
993: my $output='';
994: foreach my $role (sort(keys(%recent_roles))) {
995: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
996: $output.= &Apache::loncommon::start_data_table_row().
997: $roletext{'user.role.'.$role}->[0].
998: &Apache::loncommon::end_data_table_row();
999: if ($roletext{'user.role.'.$role}->[1] ne '') {
1000: $output .= &Apache::loncommon::continue_data_table_row().
1001: $roletext{'user.role.'.$role}->[1].
1002: &Apache::loncommon::end_data_table_row();
1003: }
1004: if ($role =~ m{dc\./($match_domain)/}
1005: && $dcroles{$1}) {
1006: $output .= &adhoc_roles_row($1,'recent');
1007: }
1008: } elsif ($numdc > 0) {
1009: unless ($role =~/^error\:/) {
1010: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1011: if ($roletext) {
1012: $output.= &Apache::loncommon::start_data_table_row().
1013: $roletext.
1014: &Apache::loncommon::end_data_table_row();
1015: if ($role_text_end) {
1016: $output .= &Apache::loncommon::continue_data_table_row().
1017: $role_text_end.
1018: &Apache::loncommon::end_data_table_row();
1019: }
1020: }
1021: }
1022: }
1023: }
1024: if ($output) {
1025: $r->print(&Apache::loncommon::start_data_table_empty_row()
1026: .'<td align="center" colspan="5">'
1027: .$recent
1028: .'</td>'
1029: .&Apache::loncommon::end_data_table_empty_row()
1030: );
1031: $r->print($output);
1032: $doheaders ++;
1033: }
1034: }
1035: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1036: if ($countactive > 1) {
1037: my $tremark='';
1038: my $tbg;
1039: if ($env{'request.role'} eq 'cm') {
1040: $tbg="LC_roles_selected";
1041: $tremark=&mt('Currently selected.').' ';
1042: } else {
1043: $tbg="LC_roles_is";
1044: }
1045: $r->print(&Apache::loncommon::start_data_table_row());
1046: unless ($nochoose) {
1047: if ($env{'request.role'} ne 'cm') {
1048: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1049: &mt('Select').'" name="cm" /></td>');
1050: } else {
1051: $r->print('<td class="'.$tbg.'"> </td>');
1052: }
1053: }
1054: $r->print('<td colspan="3">'
1055: .&mt('No role specified')
1056: .'</td>'
1057: .'<td>'.$tremark.' </td>'
1058: .&Apache::loncommon::end_data_table_row()
1059: );
1060: }
1061: $r->print(&Apache::loncommon::end_data_table());
1062: unless ($nochoose) {
1063: $r->print("</form>\n");
1064: }
1065: # ------------------------------------------------------------ Privileges Info
1066: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1067: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1068: $r->print(&privileges_info());
1069: }
1070: my $announcements = &Apache::lonnet::getannounce();
1071: $r->print(
1072: '<br />'.
1073: '<h2>'.&mt('Announcements').'</h2>'.
1074: $announcements
1075: ) unless (!$announcements);
1076: if ($advanced) {
1077: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1078: $r->print('<p><small><i>'
1079: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1080: .'</i><br />'
1081: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1082: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1083: .&mt('Course/Community Catalog')
1084: .'</a></small></p>');
1085: }
1086: $r->print(&Apache::loncommon::end_page());
1087: return OK;
1088: }
1089:
1090: sub roles_from_env {
1091: my ($roleshash,$update) = @_;
1092: my $count = 0;
1093: if (ref($roleshash) eq 'HASH') {
1094: foreach my $envkey (keys(%env)) {
1095: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1096: next if ($1 eq 'gr');
1097: $roleshash->{$envkey} = $env{$envkey};
1098: my ($start,$end) = split(/\./,$env{$envkey});
1099: unless ($end && $end<$update) {
1100: $count ++;
1101: }
1102: }
1103: }
1104: }
1105: return $count;
1106: }
1107:
1108: sub gather_roles {
1109: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1110: $timezones,$loncaparev) = @_;
1111: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1112: my $advanced = $env{'user.adv'};
1113: my $tryagain = $env{'form.tryagain'};
1114: my @ids = &Apache::lonnet::current_machine_ids();
1115: if (ref($roles_in_env) eq 'HASH') {
1116: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1117: my $button = 1;
1118: my $switchserver='';
1119: my $switchwarning;
1120: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1121: $tend,$tremark,$tstatus,$tpstart,$tpend);
1122: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1123: \$trolecode,\$tstatus,\$tstart,\$tend);
1124: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1125: $tremark='';
1126: $tpstart=' ';
1127: $tpend=' ';
1128: if ($env{'request.role'} eq $trolecode) {
1129: $tstatus='selected';
1130: }
1131: my $tbg;
1132: if (($tstatus eq 'is')
1133: || ($tstatus eq 'selected')
1134: || ($tstatus eq 'future')
1135: || ($env{'form.display'} eq 'showall')) {
1136: my $timezone = &role_timezone($where,$timezones);
1137: if ($tstart) {
1138: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1139: }
1140: if ($tend) {
1141: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1142: }
1143: if ($tstatus eq 'is') {
1144: $tbg='LC_roles_is';
1145: $possiblerole=$trolecode;
1146: $countactive++;
1147: } elsif ($tstatus eq 'future') {
1148: $tbg='LC_roles_future';
1149: $button=0;
1150: $futureroles->{$trolecode} = $tstart.':'.$tend;
1151: $countfuture ++;
1152: } elsif ($tstatus eq 'expired') {
1153: $tbg='LC_roles_expired';
1154: $button=0;
1155: } elsif ($tstatus eq 'will_not') {
1156: $tbg='LC_roles_will_not';
1157: $tremark.=&mt('Expired after logout.').' ';
1158: } elsif ($tstatus eq 'selected') {
1159: $tbg='LC_roles_selected';
1160: $inrole=1;
1161: $countactive++;
1162: $tremark.=&mt('Currently selected.').' ';
1163: }
1164: my $trole;
1165: if ($role =~ /^cr\//) {
1166: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1167: if ($tremark) { $tremark.='<br />'; }
1168: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1169: }
1170: $trole=Apache::lonnet::plaintext($role);
1171: my $ttype;
1172: my $twhere;
1173: my ($tdom,$trest,$tsection)=
1174: split(/\//,Apache::lonnet::declutter($where));
1175: # First, Co-Authorship roles
1176: if (($role eq 'ca') || ($role eq 'aa')) {
1177: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1178: my $allowed=0;
1179: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1180: if (!$allowed) {
1181: $button=0;
1182: $switchserver='otherserver='.$home.'&role='.$trolecode;
1183: }
1184: #next if ($home eq 'no_host');
1185: $home = &Apache::lonnet::hostname($home);
1186: $ttype='Authoring Space';
1187: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1188: ': '.$tdom.'<br />'.
1189: ' '.&mt('Server').': '.$home;
1190: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1191: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1192: $sortkey=$role."$trest:$tdom";
1193: } elsif ($role eq 'au') {
1194: # Authors
1195: my $home = &Apache::lonnet::homeserver
1196: ($env{'user.name'},$env{'user.domain'});
1197: my $allowed=0;
1198: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1199: if (!$allowed) {
1200: $button=0;
1201: $switchserver='otherserver='.$home.'&role='.$trolecode;
1202: }
1203: #next if ($home eq 'no_host');
1204: $home = &Apache::lonnet::hostname($home);
1205: $ttype='Authoring Space';
1206: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1207: ': '.$home;
1208: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1209: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1210: $sortkey=$role;
1211: } elsif ($trest) {
1212: my $tcourseid=$tdom.'_'.$trest;
1213: $ttype = &Apache::loncommon::course_type($tcourseid);
1214: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1215: if ($env{'course.'.$tcourseid.'.description'}) {
1216: my $home=$env{'course.'.$tcourseid.'.home'};
1217: $twhere=$env{'course.'.$tcourseid.'.description'};
1218: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1219: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1220: unless ($twhere eq &mt('Currently not available')) {
1221: $twhere.=' <span class="LC_fontsize_small">'.
1222: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1223: '</span>';
1224: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1225: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1226: if ($required ne '') {
1227: ($switchserver,$switchwarning) =
1228: &check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1229: if ($switchserver || $switchwarning) {
1230: $button = 0;
1231: }
1232: }
1233: }
1234: }
1235: } else {
1236: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1237: if (%newhash) {
1238: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1239: "\0".$envkey;
1240: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1241: ' <span class="LC_fontsize_small">'.
1242: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1243: '</span>';
1244: $ttype = $newhash{'type'};
1245: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1246: my $home = $newhash{'home'};
1247: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1248: my $required = $newhash{'internal.releaserequired'};
1249: if ($required ne '') {
1250: ($switchserver,$switchwarning) =
1251: &check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1252: if ($switchserver || $switchwarning) {
1253: $button = 0;
1254: }
1255: }
1256: }
1257: } else {
1258: $twhere=&mt('Currently not available');
1259: $env{'course.'.$tcourseid.'.description'}=$twhere;
1260: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1261: $ttype = 'Unavailable';
1262: }
1263: }
1264: if ($tsection) {
1265: $twhere.='<br />'.&mt('Section').': '.$tsection;
1266: }
1267: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1268: } elsif ($tdom) {
1269: $ttype='Domain';
1270: $twhere=$tdom;
1271: $sortkey=$role.$twhere;
1272: } else {
1273: $ttype='System';
1274: $twhere=&mt('system wide');
1275: $sortkey=$role.$twhere;
1276: }
1277: ($role_text,$role_text_end) =
1278: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1279: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1280: $tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning);
1281: $roletext->{$envkey}=[$role_text,$role_text_end];
1282: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1283: $sortrole->{$sortkey}=$envkey;
1284: $roleclass->{$envkey}=$ttype;
1285: }
1286: }
1287: }
1288: return ($countactive,$countfuture,$inrole,$possiblerole);
1289: }
1290:
1291: sub role_timezone {
1292: my ($where,$timezones) = @_;
1293: my $timezone;
1294: if (ref($timezones) eq 'HASH') {
1295: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1296: my $cdom = $1;
1297: my $cnum = $2;
1298: if ($cdom && $cnum) {
1299: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1300: my $tz;
1301: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1302: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1303: } else {
1304: my %timehash =
1305: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1306: $tz = $timehash{'timezone'};
1307: }
1308: if ($tz eq '') {
1309: if (!exists($timezones->{$cdom})) {
1310: my %domdefaults =
1311: &Apache::lonnet::get_domain_defaults($cdom);
1312: if ($domdefaults{'timezone_def'} eq '') {
1313: $timezones->{$cdom} = 'local';
1314: } else {
1315: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1316: }
1317: }
1318: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1319: } else {
1320: $timezones->{$cdom.'_'.$cnum} =
1321: &Apache::lonlocal::gettimezone($tz);
1322: }
1323: }
1324: $timezone = $timezones->{$cdom.'_'.$cnum};
1325: }
1326: } else {
1327: my ($tdom) = ($where =~ m{^/($match_domain)});
1328: if ($tdom) {
1329: if (!exists($timezones->{$tdom})) {
1330: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1331: if ($domdefaults{'timezone_def'} eq '') {
1332: $timezones->{$tdom} = 'local';
1333: } else {
1334: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1335: }
1336: }
1337: $timezone = $timezones->{$tdom};
1338: }
1339: }
1340: if ($timezone eq 'local') {
1341: $timezone = undef;
1342: }
1343: }
1344: return $timezone;
1345: }
1346:
1347: sub roletable_headers {
1348: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1349: my $doheaders;
1350: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1351: $r->print('<br />'
1352: .&Apache::loncommon::start_data_table()
1353: .&Apache::loncommon::start_data_table_header_row()
1354: );
1355: if (!$nochoose) { $r->print('<th> </th>'); }
1356: $r->print('<th>'.&mt('User Role').'</th>'
1357: .'<th>'.&mt('Extent').'</th>'
1358: .'<th>'.&mt('Start').'</th>'
1359: .'<th>'.&mt('End').'</th>'
1360: .&Apache::loncommon::end_data_table_header_row()
1361: );
1362: $doheaders=-1;
1363: my @roletypes = &roletypes();
1364: foreach my $type (@roletypes) {
1365: my $haverole=0;
1366: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1367: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1368: $haverole=1;
1369: }
1370: }
1371: if ($haverole) { $doheaders++; }
1372: }
1373: }
1374: return $doheaders;
1375: }
1376:
1377: sub roletypes {
1378: my @types = ('Domain','Authoring Space','Course','Community','Unavailable','System');
1379: return @types;
1380: }
1381:
1382: sub print_rolerows {
1383: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1384: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1385: my @types = &roletypes();
1386: foreach my $type (@types) {
1387: my $output;
1388: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1389: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1390: if (ref($roletext) eq 'HASH') {
1391: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1392: $output.= &Apache::loncommon::start_data_table_row().
1393: $roletext->{$sortrole->{$which}}->[0].
1394: &Apache::loncommon::end_data_table_row();
1395: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1396: $output .= &Apache::loncommon::continue_data_table_row().
1397: $roletext->{$sortrole->{$which}}->[1].
1398: &Apache::loncommon::end_data_table_row();
1399: }
1400: }
1401: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
1402: if (ref($dcroles) eq 'HASH') {
1403: if ($dcroles->{$1}) {
1404: $output .= &adhoc_roles_row($1,'');
1405: }
1406: }
1407: }
1408: }
1409: }
1410: }
1411: if ($output) {
1412: if ($doheaders > 0) {
1413: $r->print(&Apache::loncommon::start_data_table_empty_row()
1414: .'<td align="center" colspan="5">'
1415: .&mt($type)
1416: .'</td>'
1417: .&Apache::loncommon::end_data_table_empty_row()
1418: );
1419: }
1420: $r->print($output);
1421: }
1422: }
1423: }
1424: }
1425:
1426: sub findcourse_advice {
1427: my ($r,$cattype) = @_;
1428: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1429: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1430: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1431: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1432: <ul>
1433: <li>'.&mt('The course has yet to be created.').'</li>
1434: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1435: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1436: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1437: <li>'.&mt('You registered for the course recently and there is a time lag between the time you register, and the time this information becomes available for the update of LON-CAPA course rosters.').'</li>
1438: </ul>');
1439: } else {
1440: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1441: }
1442: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1443: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1444: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1445: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1446: &Apache::loncoursequeueadmin::queued_selfenrollment());
1447: }
1448: return;
1449: }
1450:
1451: sub requestcourse_advice {
1452: my ($r,$cattype) = @_;
1453: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1454: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1455: my (%can_request,%request_doms);
1456: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1457: if (keys(%request_doms) > 0) {
1458: my ($types,$typename) = &Apache::loncommon::course_types();
1459: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1460: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1461: '<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');
1462: my (@reqdoms,@reqtypes);
1463: foreach my $type (sort(keys(%request_doms))) {
1464: push(@reqtypes,$type);
1465: if (ref($request_doms{$type}) eq 'ARRAY') {
1466: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1467: $r->print(
1468: '<li>'
1469: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1470: '<i>',
1471: '</i>',
1472: '<b>'.$domstr.'</b>')
1473: .'</li>'
1474: );
1475: foreach my $dom (@{$request_doms{$type}}) {
1476: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1477: push(@reqdoms,$dom);
1478: }
1479: }
1480: }
1481: }
1482: my @showtypes;
1483: foreach my $type (@{$types}) {
1484: if (grep(/^\Q$type\E$/,@reqtypes)) {
1485: push(@showtypes,$type);
1486: }
1487: }
1488: my $requrl = '/adm/requestcourse';
1489: if (@reqdoms == 1) {
1490: $requrl .= '?showdom='.$reqdoms[0];
1491: }
1492: if (@showtypes > 0) {
1493: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1494: }
1495: if (@reqdoms == 1 || @showtypes > 0) {
1496: $requrl .= '&state=crstype&action=new';
1497: }
1498: $r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');
1499: }
1500: } elsif (!$env{'user.adv'}) {
1501: &findcourse_advice($r,$cattype);
1502: }
1503: return;
1504: }
1505:
1506: sub privileges_info {
1507: my ($which) = @_;
1508: my $output;
1509:
1510: $which ||= $env{'request.role'};
1511:
1512: foreach my $envkey (sort(keys(%env))) {
1513: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1514:
1515: my $where=$1;
1516: my $ttype;
1517: my $twhere;
1518: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1519: if ($trest) {
1520: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1521: $ttype='Authoring Space';
1522: $twhere='User: '.$trest.', Domain: '.$tdom;
1523: } else {
1524: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1525: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1526: if ($tsec) {
1527: my $sec_type = 'Section';
1528: if (exists($env{"user.role.gr.$where"})) {
1529: $sec_type = 'Group';
1530: }
1531: $twhere.=' ('.$sec_type.': '.$tsec.')';
1532: }
1533: }
1534: } elsif ($tdom) {
1535: $ttype='Domain';
1536: $twhere=$tdom;
1537: } else {
1538: $ttype='System';
1539: $twhere='/';
1540: }
1541: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1542: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1543: next if (!$priv);
1544:
1545: my ($prv,$restr)=split(/\&/,$priv);
1546: my $trestr='';
1547: if ($restr ne 'F') {
1548: $trestr.=' ('.
1549: join(', ',
1550: map { &Apache::lonnet::plaintext($_) }
1551: (split('',$restr))).') ';
1552: }
1553: $output .= "\n\t".
1554: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1555: }
1556: $output .= "\n".'</ul>';
1557: }
1558: return $output;
1559: }
1560:
1561: sub build_roletext {
1562: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_;
1563: my ($roletext,$roletext_end);
1564: my $is_dc=($trolecode =~ m/^dc\./);
1565: my $rowspan=($is_dc) ? ''
1566: : ' rowspan="2" ';
1567:
1568: unless ($nochoose) {
1569: my $buttonname=$trolecode;
1570: $buttonname=~s/\W//g;
1571: if (!$button) {
1572: if ($switchserver) {
1573: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1574: .'<a href="/adm/switchserver?'.$switchserver.'">'
1575: .&mt('Switch Server')
1576: .'</a></td>';
1577: } else {
1578: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1579: }
1580: if ($switchwarning) {
1581: if ($tremark eq '') {
1582: $tremark = $switchwarning;
1583: } else {
1584: $tremark .= '<br />'.$switchwarning;
1585: }
1586: }
1587: } elsif ($tstatus eq 'is') {
1588: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1589: '<input name="'.$buttonname.'" type="button" value="'.
1590: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1591: $trolecode."','".$buttonname.'\');" /></td>';
1592: } elsif ($tryagain) {
1593: $roletext.=
1594: '<td'.$rowspan.' class="'.$tbg.'">'.
1595: '<input name="'.$buttonname.'" type="button" value="'.
1596: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1597: $trolecode."','".$buttonname.'\');" /></td>';
1598: } elsif ($advanced) {
1599: $roletext.=
1600: '<td'.$rowspan.' class="'.$tbg.'">'.
1601: '<input name="'.$buttonname.'" type="button" value="'.
1602: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1603: $trolecode."','".$buttonname.'\');" /></td>';
1604: } elsif ($reinit) {
1605: $roletext.=
1606: '<td'.$rowspan.' class="'.$tbg.'">'.
1607: '<input name="'.$buttonname.'" type="button" value="'.
1608: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1609: $trolecode."','".$buttonname.'\');" /></td>';
1610: } else {
1611: $roletext.=
1612: '<td'.$rowspan.' class="'.$tbg.'">'.
1613: '<input name="'.$buttonname.'" type="button" value="'.
1614: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1615: $trolecode."','".$buttonname.'\');" /></td>';
1616: }
1617: }
1618: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1619: $tremark.=&Apache::lonannounce::showday(time,1,
1620: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1621: }
1622: $roletext.='<td>'.$trole.'</td>'
1623: .'<td>'.$twhere.'</td>'
1624: .'<td>'.$tpstart.'</td>'
1625: .'<td>'.$tpend.'</td>';
1626: if (!$is_dc) {
1627: $roletext_end = '<td colspan="4">'.
1628: $tremark.' '.
1629: '</td>';
1630: }
1631: return ($roletext,$roletext_end);
1632: }
1633:
1634: sub check_author_homeserver {
1635: my ($uname,$udom)=@_;
1636: if (($uname eq '') || ($udom eq '')) {
1637: return ('fail','');
1638: }
1639: my $home = &Apache::lonnet::homeserver($uname,$udom);
1640: if (&Apache::lonnet::host_domain($home) ne $udom) {
1641: return ('fail',$home);
1642: }
1643: my @ids=&Apache::lonnet::current_machine_ids();
1644: if (grep(/^\Q$home\E$/,@ids)) {
1645: return ('ok',$home);
1646: } else {
1647: return ('switchserver',$home);
1648: }
1649: }
1650:
1651: sub check_fordc {
1652: my ($dcroles,$update,$then) = @_;
1653: my $numdc = 0;
1654: if ($env{'user.adv'}) {
1655: foreach my $envkey (sort keys %env) {
1656: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1657: my $dcdom = $1;
1658: my $livedc = 1;
1659: my ($tstart,$tend)=split(/\./,$env{$envkey});
1660: my $limit = $update;
1661: if ($env{'request.role'} eq 'dc./'.$dcdom.'/') {
1662: $limit = $then;
1663: }
1664: if ($tstart && $tstart>$limit) { $livedc = 0; }
1665: if ($tend && $tend <$limit) { $livedc = 0; }
1666: if ($livedc) {
1667: $$dcroles{$dcdom} = $envkey;
1668: $numdc++;
1669: }
1670: }
1671: }
1672: }
1673: return $numdc;
1674: }
1675:
1676: sub adhoc_course_role {
1677: my ($refresh,$update,$then) = @_;
1678: my ($cdom,$cnum,$crstype);
1679: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1680: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1681: $crstype = &Apache::loncommon::course_type();
1682: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1683: my $setprivs;
1684: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1685: $setprivs = 1;
1686: } else {
1687: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1688: if (($start && ($start>$refresh || $start == -1)) ||
1689: ($end && $end<$update)) {
1690: $setprivs = 1;
1691: }
1692: }
1693: unless ($setprivs) {
1694: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1695: $setprivs = 1;
1696: }
1697: }
1698: if ($setprivs) {
1699: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1700: my $role = $1;
1701: my $custom_role = $2;
1702: my $usec = $3;
1703: if ($role eq 'cr') {
1704: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1705: $role .= $custom_role;
1706: } else {
1707: return;
1708: }
1709: }
1710: my (%userroles,%newrole,%newgroups,%group_privs);
1711: my %cgroups =
1712: &Apache::lonnet::get_active_groups($env{'user.domain'},
1713: $env{'user.name'},$cdom,$cnum);
1714: foreach my $group (keys(%cgroups)) {
1715: $group_privs{$group} =
1716: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1717: }
1718: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1719: my $area = '/'.$cdom.'/'.$cnum;
1720: my $spec = $role.'.'.$area;
1721: if ($usec ne '') {
1722: $spec .= '/'.$usec;
1723: $area .= '/'.$usec;
1724: }
1725: if ($role =~ /^cr/) {
1726: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1727: } else {
1728: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1729: }
1730: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1731: my $adhocstart = $refresh-1;
1732: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1733: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1734: }
1735: }
1736: }
1737: return;
1738: }
1739:
1740: sub check_forcc {
1741: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1742: my ($is_cc,$ccrole);
1743: if ($crstype eq 'Community') {
1744: $ccrole = 'co';
1745: } else {
1746: $ccrole = 'cc';
1747: }
1748: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1749: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1750: if (defined($env{$envkey})) {
1751: $is_cc = 1;
1752: my ($tstart,$tend)=split(/\./,$env{$envkey});
1753: my $limit = $update;
1754: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1755: $limit = $then;
1756: }
1757: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1758: if ($tend && $tend <$limit) { $is_cc = 0; }
1759: }
1760: }
1761: return $is_cc;
1762: }
1763:
1764: sub check_release_required {
1765: my ($loncaparev,$tcourseid,$trolecode,$required) = @_;
1766: my ($switchserver,$warning);
1767: if ($required ne '') {
1768: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
1769: my ($major,$minor) = ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
1770: print STDERR "version: required ||$required|| loncaparev ||$loncaparev||\n";
1771: if ($reqdmajor ne '' && $reqdminor ne '') {
1772: my $otherserver;
1773: if (($major eq '' && $minor eq '') ||
1774: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
1775: my ($userdomserver) = &Apache::lonnet::choose_server($env{'user.domain'},undef,$required,1);
1776: my $switchlcrev =
1777: &Apache::lonnet::get_server_loncaparev($env{'user.domain'},
1778: $userdomserver);
1779: my ($swmajor,$swminor) = ($switchlcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
1780: if (($swmajor eq '' && $swminor eq '') || ($reqdmajor > $swmajor) ||
1781: (($reqdmajor == $swmajor) && ($reqdminor > $swminor))) {
1782: my $cdom = $env{'course.'.$tcourseid.'.domain'};
1783: if ($cdom ne $env{'user.domain'}) {
1784: my ($coursedomserver,$coursehostname) = &Apache::lonnet::choose_server($cdom,undef,$required,1);
1785: my $serverhomeID = &Apache::lonnet::get_server_homeID($coursehostname);
1786: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1787: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1788: my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'});
1789: my $remoterev = &Apache::lonnet::get_server_loncaparev($serverhomedom,$coursedomserver);
1790: my $canhost =
1791: &Apache::lonnet::can_host_session($env{'user.domain'},
1792: $coursedomserver,
1793: $remoterev,
1794: $udomdefaults{'remotesessions'},
1795: $defdomdefaults{'hostedsessions'});
1796:
1797: if ($canhost) {
1798: $otherserver = $coursedomserver;
1799: } else {
1800: $warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'. &mt("No suitable server could be found amongst servers in either your own domain or in the course's domain.");
1801: }
1802: } else {
1803: $warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'.&mt("No suitable server could be found amongst servers in your own domain (which is also the course's domain).");
1804: }
1805: } else {
1806: $otherserver = $userdomserver;
1807: }
1808: }
1809: if ($otherserver ne '') {
1810: $switchserver = 'otherserver='.$otherserver.'&role='.$trolecode;
1811: }
1812: }
1813: }
1814: return ($switchserver,$warning);
1815: }
1816:
1817: sub courselink {
1818: my ($dcdom,$rowtype) = @_;
1819: my $courseform=&Apache::loncommon::selectcourse_link
1820: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1821: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1822: $dcdom,$dcdom,undef,'Course/Community');
1823: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1824: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1825: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1826: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1827: return $courseform.$hiddenitems;
1828: }
1829:
1830: sub coursepick_jscript {
1831: my %lt = &Apache::lonlocal::texthash(
1832: plsu => "Please use the 'Select Course/Community' link to open a separate pick course window where you may select the course or community you wish to enter.",
1833: youc => 'You can only use this screen to select courses and communities in the current domain.',
1834: );
1835: my $verify_script = <<"END";
1836: <script type="text/javascript">
1837: // <![CDATA[
1838: function verifyCoursePick(caller) {
1839: var numbutton = getIndex(caller)
1840: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1841: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1842: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1843: if (pickedCourse != '') {
1844: if (numbutton != -1) {
1845: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1846: document.rolechoice.elements[numbutton+1].name = courseTarget
1847: document.rolechoice.submit()
1848: }
1849: }
1850: else {
1851: alert("$lt{'plsu'}");
1852: }
1853: }
1854: else {
1855: alert("$lt{'youc'}")
1856: }
1857: }
1858: function getIndex(caller) {
1859: for (var i=0;i<document.rolechoice.elements.length;i++) {
1860: if (document.rolechoice.elements[i] == caller) {
1861: return i;
1862: }
1863: }
1864: return -1;
1865: }
1866: // ]]>
1867: </script>
1868: END
1869: return $verify_script;
1870: }
1871:
1872: sub coauthorlink {
1873: my ($dcdom,$rowtype) = @_;
1874: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1875: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1876: return $coauthorform.$hiddenitems;
1877: }
1878:
1879: sub display_cc_role {
1880: my $rolekey = shift;
1881: my ($roletext,$roletext_end);
1882: my $advanced = $env{'user.adv'};
1883: my $tryagain = $env{'form.tryagain'};
1884: unless ($rolekey =~/^error\:/) {
1885: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1886: my $ccrole = $1;
1887: my $tdom = $2;
1888: my $trest = $3;
1889: my $tcourseid = $tdom.'_'.$trest;
1890: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1891: my $twhere;
1892: my $ttype;
1893: my $tbg='LC_roles_is';
1894: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1895: if (%newhash) {
1896: $twhere=$newhash{'description'}.
1897: ' <span class="LC_fontsize_small">'.
1898: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1899: '</span>';
1900: $ttype = $newhash{'type'};
1901: } else {
1902: $twhere=&mt('Currently not available');
1903: $env{'course.'.$tcourseid.'.description'}=$twhere;
1904: }
1905: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
1906: $twhere.="<br />".&mt('Domain').":".$tdom;
1907: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1908: }
1909: }
1910: return ($roletext,$roletext_end);
1911: }
1912:
1913: sub adhoc_roles_row {
1914: my ($dcdom,$rowtype) = @_;
1915: my $output = &Apache::loncommon::continue_data_table_row()
1916: .' <td colspan="5">'
1917: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1918: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1919: .' ';
1920: my $selectcclink = &courselink($dcdom,$rowtype);
1921: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
1922: my $carole = &Apache::lonnet::plaintext('ca');
1923: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1924: $output.=$ccrole.': '.$selectcclink
1925: .' | '.$carole.': '.$selectcalink.'</td>'
1926: .&Apache::loncommon::end_data_table_row();
1927: return $output;
1928: }
1929:
1930: sub recent_filename {
1931: my $area=shift;
1932: return 'nohist_recent_'.&escape($area);
1933: }
1934:
1935: sub courseloadpage {
1936: my ($courseid) = @_;
1937: my $startpage;
1938: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1939: [$courseid.':courseinit']);
1940: my ($tmp) = %entry_settings;
1941: unless ($tmp =~ /^error: 2 /) {
1942: $startpage = $entry_settings{$courseid.':courseinit'};
1943: }
1944: if ($startpage eq '') {
1945: if (exists($env{'environment.course_init_display'})) {
1946: $startpage = $env{'environment.course_init_display'};
1947: }
1948: }
1949: return $startpage;
1950: }
1951:
1952: sub update_session_roles {
1953: my $then=$env{'user.login.time'};
1954: my $refresh=$env{'user.refresh.time'};
1955: if (!$refresh) {
1956: $refresh = $then;
1957: }
1958: my $update = $env{'user.update.time'};
1959: if (!$update) {
1960: $update = $then;
1961: }
1962: my $now = time;
1963: my %roleshash =
1964: &Apache::lonnet::get_my_roles('','','userroles',
1965: ['active','future','previous'],
1966: undef,undef,1);
1967: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
1968: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
1969: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
1970: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
1971: @rolecodes);
1972: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
1973: my %courseroles;
1974: foreach my $item (keys(%roleshash)) {
1975: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
1976: my ($tstart,$tend) = split(/:/,$roleshash{$item});
1977: my ($section,$group,@group_privs);
1978: if ($role =~ m{^gr/(\w*)$}) {
1979: $role = 'gr';
1980: my $priv = $1;
1981: next if ($tstart eq '-1');
1982: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
1983: if ($priv ne '') {
1984: push(@group_privs,$priv);
1985: }
1986: }
1987: if ($remainder =~ /:/) {
1988: (my $additional_privs,$group) =
1989: ($remainder =~ /^([\w:]+):([^:]+)$/);
1990: if ($additional_privs ne '') {
1991: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
1992: push(@group_privs,split(/:/,$additional_privs));
1993: @group_privs = sort(@group_privs);
1994: }
1995: }
1996: } else {
1997: $group = $remainder;
1998: }
1999: } else {
2000: $section = $remainder;
2001: }
2002: my $where = "/$udom/$uname";
2003: if ($section ne '') {
2004: $where .= "/$section";
2005: } elsif ($group ne '') {
2006: $where .= "/$group";
2007: }
2008: my $rolekey = "$role.$where";
2009: my $envkey = "user.role.$rolekey";
2010: $dbroles{$envkey} = 1;
2011: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2012: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2013: $currrole_expired = 1;
2014: }
2015: }
2016: if ($env{$envkey} eq '') {
2017: my $status_in_db =
2018: &curr_role_status($tstart,$tend,$now,$now);
2019: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2020: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2021: if ($status_in_db eq 'active') {
2022: if ($section eq '') {
2023: push(@newsec,'none');
2024: } else {
2025: push(@newsec,$section);
2026: }
2027: }
2028: } else {
2029: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2030: push(@changed_roles,$role);
2031: }
2032: if ($status_in_db ne 'previous') {
2033: if ($role eq 'gr') {
2034: $newgroup{$rolekey} = $status_in_db;
2035: if ($status_in_db eq 'active') {
2036: unless (ref($courseroles{$udom}) eq 'HASH') {
2037: %{$courseroles{$udom}} =
2038: &Apache::lonnet::get_my_roles('','','userroles',
2039: ['active'],\@possroles,
2040: [$udom],1);
2041: }
2042: &Apache::lonnet::get_groups_roles($udom,$uname,
2043: $courseroles{$udom},
2044: \@rolecodes,\%groups_roles);
2045: }
2046: } else {
2047: $newrole{$rolekey} = $status_in_db;
2048: }
2049: }
2050: }
2051: } else {
2052: my ($currstart,$currend) = split(/\./,$env{$envkey});
2053: if ($role eq 'gr') {
2054: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2055: $hasgroups = 1;
2056: }
2057: }
2058: if (($currstart ne $tstart) || ($currend ne $tend)) {
2059: my $status_in_env =
2060: &curr_role_status($currstart,$currend,$refresh,$update);
2061: my $status_in_db =
2062: &curr_role_status($tstart,$tend,$now,$now);
2063: if ($status_in_env ne $status_in_db) {
2064: if ($status_in_env eq 'active') {
2065: if ($role eq 'st') {
2066: if ($env{'request.role'} eq $rolekey) {
2067: my $switchsection;
2068: unless (ref($courseroles{$udom}) eq 'HASH') {
2069: %{$courseroles{$udom}} =
2070: &Apache::lonnet::get_my_roles('','','userroles',
2071: ['active'],
2072: \@possroles,[$udom],1);
2073: }
2074: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2075: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2076: $switchsection = 1;
2077: last;
2078: }
2079: }
2080: if ($switchsection) {
2081: if ($section eq '') {
2082: $oldsec = 'none';
2083: } else {
2084: $oldsec = $section;
2085: }
2086: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2087: } else {
2088: $currrole_expired = 1;
2089: next;
2090: }
2091: }
2092: }
2093: unless ($rolekey eq $env{'request.role'}) {
2094: if ($role eq 'gr') {
2095: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2096: } else {
2097: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2098: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2099: }
2100: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2101: }
2102: } elsif ($status_in_db eq 'active') {
2103: if (($role eq 'st') &&
2104: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2105: if ($section eq '') {
2106: push(@newsec,'none');
2107: } else {
2108: push(@newsec,$section);
2109: }
2110: } elsif ($role eq 'gr') {
2111: unless (ref($courseroles{$udom}) eq 'HASH') {
2112: %{$courseroles{$udom}} =
2113: &Apache::lonnet::get_my_roles('','','userroles',
2114: ['active'],
2115: \@possroles,[$udom],1);
2116: }
2117: &Apache::lonnet::get_groups_roles($udom,$uname,
2118: $courseroles{$udom},
2119: \@rolecodes,\%groups_roles);
2120: }
2121: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2122: }
2123: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2124: push(@changed_roles,$role);
2125: }
2126: if ($role eq 'gr') {
2127: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2128: } else {
2129: $rolechange{$rolekey} = $status_in_db;
2130: }
2131: }
2132: } else {
2133: if ($role eq 'gr') {
2134: unless ($checkedgroup{$where}) {
2135: my $status_in_db =
2136: &curr_role_status($tstart,$tend,$refresh,$now);
2137: if ($tstart eq '-1') {
2138: $status_in_db = 'deleted';
2139: }
2140: unless (ref($courseroles{$udom}) eq 'HASH') {
2141: %{$courseroles{$udom}} =
2142: &Apache::lonnet::get_my_roles('','','userroles',
2143: ['active'],
2144: \@possroles,[$udom],1);
2145: }
2146: if (ref($courseroles{$udom}) eq 'HASH') {
2147: foreach my $item (keys(%{$courseroles{$udom}})) {
2148: next unless ($item =~ /^\Q$uname\E/);
2149: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2150: my $area = '/'.$cdom.'/'.$cnum;
2151: if ($crssec ne '') {
2152: $area .= '/'.$crssec;
2153: }
2154: my $crsrolekey = $crsrole.'.'.$area;
2155: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2156: $currprivs =~ s/^://;
2157: $currprivs =~ s/\&F$//;
2158: my @curr_grp_privs = split(/\&F:/,$currprivs);
2159: @curr_grp_privs = sort(@curr_grp_privs);
2160: my @diffs;
2161: if (@group_privs > 0 || @curr_grp_privs > 0) {
2162: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2163: }
2164: if (@diffs == 0) {
2165: last;
2166: } else {
2167: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2168: push(@rolecodes,'gr');
2169: }
2170: &gather_roleprivs(\%allroles,\%allgroups,
2171: \%userroles,$where,$role,
2172: $tstart,$tend,$status_in_db);
2173: if ($status_in_db eq 'active') {
2174: &Apache::lonnet::get_groups_roles($udom,$uname,
2175: $courseroles{$udom},
2176: \@rolecodes,\%groups_roles);
2177: }
2178: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2179: last;
2180: }
2181: }
2182: }
2183: $checkedgroup{$where} = 1;
2184: }
2185: } elsif ($role =~ /^cr/) {
2186: my $status_in_db =
2187: &curr_role_status($tstart,$tend,$refresh,$now);
2188: my ($rdummy,$rest) = split(/\//,$role,2);
2189: my %currpriv;
2190: unless (exists($crprivs{$rest})) {
2191: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2192: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2193: if (&Apache::lonnet::hostname($homsvr) ne '') {
2194: my ($rdummy,$roledef)=
2195: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2196: $rdomain,$rauthor);
2197: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2198: my $i = 0;
2199: my @scopes = ('sys','dom','crs');
2200: my @privs = split(/\_/,$roledef);
2201: foreach my $priv (@privs) {
2202: my ($blank,@prv) = split(/:/,$priv);
2203: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2204: if (@prv) {
2205: $priv = ':'.join(':',sort(@prv));
2206: }
2207: $crprivs{$rest}{$scopes[$i]} = $priv;
2208: $i++;
2209: }
2210: }
2211: }
2212: }
2213: my $status_in_env =
2214: &curr_role_status($currstart,$currend,$refresh,$update);
2215: if ($status_in_env eq 'active') {
2216: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2217: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2218: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2219: if (keys(%crprivs)) {
2220: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2221: ($crprivs{$rest}{dom} ne $currpriv{dom})
2222: ||
2223: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2224: &gather_roleprivs(\%allroles,\%allgroups,
2225: \%userroles,$where,$role,
2226: $tstart,$tend,$status_in_db);
2227: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2228: push(@changed_roles,$role);
2229: }
2230: $customprivchg{$rolekey} = $status_in_env;
2231: }
2232: }
2233: }
2234: }
2235: }
2236: }
2237: }
2238: foreach my $envkey (keys(%env)) {
2239: next unless ($envkey =~ /^user\.role\./);
2240: next if ($dbroles{$envkey});
2241: next if ($envkey eq 'user.role.'.$env{'request.role'});
2242: my ($currstart,$currend) = split(/\./,$env{$envkey});
2243: my $status_in_env =
2244: &curr_role_status($currstart,$currend,$refresh,$update);
2245: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2246: my ($role,$rest)=split(m{\./},$rolekey,2);
2247: $rest = '/'.$rest;
2248: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2249: if ($status_in_env eq 'active') {
2250: if ($role eq 'gr') {
2251: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2252: \@possroles);
2253: } else {
2254: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2255: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2256: }
2257: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2258: push(@changed_roles,$role);
2259: }
2260: $deletedroles{$rolekey} = 1;
2261: }
2262: }
2263: }
2264: if (($oldsec) && (@newsec > 0)) {
2265: if (@newsec > 1) {
2266: $msg = '<p class="LC_warning">'.&mt('The section has changed for your current role. Log-out and log-in again to select a role for the new section.').'</p>';
2267: } else {
2268: my $newrole = $env{'request.role'};
2269: if ($newsec[0] eq 'none') {
2270: $newrole =~ s{(/[^/])$}{};
2271: } elsif ($oldsec eq 'none') {
2272: $newrole .= '/'.$newsec[0];
2273: } else {
2274: $newrole =~ s{([^/]+)$}{$newsec[0]};
2275: }
2276: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2277: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2278: my %temp=('logout_'.$env{'request.course.id'} => time);
2279: &Apache::lonnet::put('email_status',\%temp);
2280: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2281: &Apache::lonnet::appenv({"request.course.id" => '',
2282: "request.course.fn" => '',
2283: "request.course.uri" => '',
2284: "request.course.sec" => '',
2285: "request.role" => 'cm',
2286: "request.role.adv" => $env{'user.adv'},
2287: "request.role.domain" => $env{'user.domain'}});
2288: my $rolename = &Apache::loncommon::plainname($curr_role);
2289: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2290: '<input type="hidden" name="newrole" value="" />'.
2291: '<input type="hidden" name="selectrole" value="1" />'.
2292: '<span class="LC_info">'.
2293: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2294: my $button = '<input type="button" name="sectionchanged" value="'.
2295: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2296: if ($newsec[0] eq 'none') {
2297: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2298: } else {
2299: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2300: }
2301: $msg .= '</form></p>';
2302: }
2303: } elsif ($currrole_expired) {
2304: $msg .= '<p class="LC_warning">';
2305: if (&Apache::loncommon::show_course()) {
2306: $msg .= &mt('Your role in the current course has expired.');
2307: } else {
2308: $msg .= &mt('Your current role has expired.');
2309: }
2310: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2311: }
2312: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2313: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2314: $curr_author = $env{'user.author'};
2315: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2316: ($env{'request.role'} =~/^aa/)) {
2317: $curr_role_author=1;
2318: }
2319: $curr_is_adv = $env{'user.adv'};
2320: $curr_role_adv = $env{'request.role.adv'};
2321: if (keys(%userroles) > 0) {
2322: foreach my $role (@changed_roles) {
2323: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2324: push(@rolecodes,$role);
2325: }
2326: }
2327: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2328: push(@rolecodes,'cm');
2329: }
2330: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2331: }
2332: my %newenv;
2333: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2334: unless ($curr_is_adv) {
2335: $newenv{'user.adv'} = 1;
2336: }
2337: } elsif ($curr_is_adv && !$curr_role_adv) {
2338: &Apache::lonnet::delenv('user.adv');
2339: }
2340: my %authorroleshash =
2341: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2342: if (keys(%authorroleshash)) {
2343: unless ($curr_author) {
2344: $newenv{'user.author'} = 1;
2345: }
2346: } elsif ($curr_author && !$curr_role_author) {
2347: &Apache::lonnet::delenv('user.author');
2348: }
2349: if ($env{'request.course.id'}) {
2350: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2351: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2352: my (@activecrsgroups,$crsgroupschanged);
2353: if ($env{'request.course.groups'}) {
2354: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2355: foreach my $item (keys(%deletedroles)) {
2356: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2357: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2358: $crsgroupschanged = 1;
2359: last;
2360: }
2361: }
2362: }
2363: }
2364: unless ($crsgroupschanged) {
2365: foreach my $item (keys(%newgroup)) {
2366: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2367: if ($newgroup{$item} eq 'active') {
2368: $crsgroupschanged = 1;
2369: last;
2370: }
2371: }
2372: }
2373: }
2374: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2375: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2376: ($crsgroupschanged)) {
2377: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2378: ['active'],['gr'],[$cdom],1);
2379: my @activegroups;
2380: foreach my $item (keys(%grouproles)) {
2381: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2382: my $group;
2383: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2384: if ($remainder =~ /:/) {
2385: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2386: } else {
2387: $group = $remainder;
2388: }
2389: if ($group ne '') {
2390: push(@activegroups,$group);
2391: }
2392: }
2393: $newenv{'request.course.groups'} = join(':',@activegroups);
2394: }
2395: }
2396: if (keys(%newenv)) {
2397: &Apache::lonnet::appenv(\%newenv);
2398: }
2399: if (!@changed_roles || !(keys(%changed_groups))) {
2400: my ($rolesmsg,$groupsmsg);
2401: if (!@changed_roles) {
2402: if (&Apache::loncommon::show_course()) {
2403: $rolesmsg = &mt('No new courses or communities');
2404: } else {
2405: $rolesmsg = &mt('No role changes');
2406: }
2407: }
2408: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2409: $groupsmsg = &mt('No changes in course/community groups');
2410: }
2411: if (!@changed_roles && !(keys(%changed_groups))) {
2412: if (($msg ne '') || ($groupsmsg ne '')) {
2413: $msg .= '<ul>';
2414: if ($rolesmsg) {
2415: $msg .= '<li>'.$rolesmsg.'</li>';
2416: }
2417: if ($groupsmsg) {
2418: $msg .= '<li>'.$groupsmsg.'</li>';
2419: }
2420: $msg .= '</ul>';
2421: } else {
2422: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2423: }
2424: return $msg;
2425: }
2426: }
2427: my $changemsg;
2428: if (@changed_roles > 0) {
2429: if (keys(%newgroup) > 0) {
2430: my $groupmsg;
2431: my (%curr_groups,%groupdescs,$currcrs);
2432: foreach my $item (sort(keys(%newgroup))) {
2433: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2434: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2435: my ($cdom,$cnum) = split(/\//,$1);
2436: my $group = $2;
2437: if ($currcrs ne $cdom.'_'.$cnum) {
2438: if ($currcrs) {
2439: $groupmsg .= '</ul><li>';
2440: }
2441: $groupmsg .= '<li><b>'.
2442: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2443: $currcrs = $cdom.'_'.$cnum;
2444: }
2445: my $groupdesc;
2446: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2447: %{$curr_groups{$cdom.'_'.$cnum}} =
2448: &Apache::longroup::coursegroups($cdom,$cnum);
2449: }
2450: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2451: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2452:
2453: my %groupinfo =
2454: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2455: $groupdescs{$cdom.'_'.$cnum}{$group} =
2456: &unescape($groupinfo{'description'});
2457: }
2458: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2459: if ($groupdesc) {
2460: $groupmsg .= '<li>'.
2461: &mt('[_1] with status: [_2].',
2462: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2463: }
2464: }
2465: }
2466: if ($groupmsg) {
2467: $groupmsg .= '</ul></li>';
2468: }
2469: }
2470: if ($groupmsg) {
2471: $changemsg .= '<li>'.
2472: &mt('Courses with new groups').'</li>'.
2473: '<ul>'.$groupmsg.'</ul></li>';
2474: }
2475: }
2476: if (keys(%newrole) > 0) {
2477: my $newmsg;
2478: foreach my $item (sort(keys(%newrole))) {
2479: my $desc = &role_desc($item,$update,$refresh,$now);
2480: if ($desc) {
2481: $newmsg .= '<li>'.
2482: &mt('[_1] with status: [_2].',
2483: $desc,&mt($newrole{$item})).'</li>';
2484: }
2485: }
2486: if ($newmsg) {
2487: $changemsg .= '<li>'.&mt('New roles').
2488: '<ul>'.$newmsg.'</ul>'.
2489: '</li>';
2490: }
2491: }
2492: if (keys(%customprivchg) > 0) {
2493: my $privmsg;
2494: foreach my $item (sort(keys(%customprivchg))) {
2495: my $desc = &role_desc($item,$update,$refresh,$now);
2496: if ($desc) {
2497: $privmsg .= '<li>'.$desc.'</li>';
2498: }
2499: }
2500: if ($privmsg) {
2501: $changemsg .= '<li>'.
2502: &mt('Custom roles with privilege changes').
2503: '<ul>'.$privmsg.'</ul>'.
2504: '</li>';
2505: }
2506: }
2507: if (keys(%rolechange) > 0) {
2508: my $rolemsg;
2509: foreach my $item (sort(keys(%rolechange))) {
2510: my $desc = &role_desc($item,$update,$refresh,$now);
2511: if ($desc) {
2512: $rolemsg .= '<li>'.
2513: &mt('[_1] status now: [_2].',$desc,
2514: $rolechange{$item}).'</li>';
2515: }
2516: }
2517: if ($rolemsg) {
2518: $changemsg .= '<li>'.
2519: &mt('Existing roles with status changes').'</li>'.
2520: '<ul>'.$rolemsg.'</ul>'.
2521: '</li>';
2522: }
2523: }
2524: if (keys(%deletedroles) > 0) {
2525: my $delmsg;
2526: foreach my $item (sort(keys(%deletedroles))) {
2527: my $desc = &role_desc($item,$update,$refresh,$now);
2528: if ($desc) {
2529: $delmsg .= '<li>'.$desc.'</li>';
2530: }
2531: }
2532: if ($delmsg) {
2533: $changemsg .= '<li>'.
2534: &mt('Existing roles now expired').'</li>'.
2535: '<ul>'.$delmsg.'</ul>'.
2536: '</li>';
2537: }
2538: }
2539: }
2540: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2541: my $groupchgmsg;
2542: foreach my $key (sort(keys(%changed_groups))) {
2543: my $crs = 'gr/'.$key;
2544: $crs =~ s/_/\//;
2545: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2546: if (ref($changed_groups{$key}) eq 'HASH') {
2547: my @showgroups;
2548: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2549: if ($changed_groups{$key}{$group} eq 'active') {
2550: push(@showgroups,$group);
2551: }
2552: }
2553: if (@showgroups > 0) {
2554: $groupchgmsg .= '<li>'.
2555: &mt('Course: [_1], groups: [_2].',$key,
2556: join(', ',@showgroups)).
2557: '</li>';
2558: }
2559: }
2560: }
2561: }
2562: if (keys(%groupchange) > 0) {
2563: $groupchgmsg .= '<li>'.
2564: &mt('Existing course/community groups with status changes').'</li>'.
2565: '<ul>';
2566: foreach my $crs (sort(keys(%groupchange))) {
2567: my $cid = $crs;
2568: $cid=~s{^/}{};
2569: $cid=~s{/}{_};
2570: my $crsdesc = $env{'course.'.$cid.'.description'};
2571: my $cdom = $env{'course.'.$cid.'.domain'};
2572: my $cnum = $env{'course.'.$cid.'.num'};
2573: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2574: my %groupdesc;
2575: if (ref($groupchange{$crs}) eq 'HASH') {
2576: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2577: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2578: unless ($groupdesc{$group}) {
2579: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2580: $groupdesc{$group} = &unescape($groupinfo{'description'});
2581: }
2582: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2583: }
2584: $groupchgmsg .= '</ul></li>';
2585: }
2586: }
2587: $groupchgmsg .= '</ul></li>';
2588: }
2589: if ($groupchgmsg) {
2590: $changemsg .= '<li>'.
2591: &mt('Courses with changes in groups').'</li>'.
2592: '<ul>'.$groupchgmsg.'</ul></li>';
2593: }
2594: }
2595: if ($changemsg) {
2596: $msg .= '<ul>'.$changemsg.'</ul>';
2597: } else {
2598: if (&Apache::loncommon::show_course()) {
2599: $msg = &mt('No new courses or communities');
2600: } else {
2601: $msg = &mt('No role changes');
2602: }
2603: }
2604: return $msg;
2605: }
2606:
2607: sub role_desc {
2608: my ($item,$update,$refresh,$now) = @_;
2609: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2610: $trole,$tremark);
2611: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2612: $now,\$role,\$where,\$trolecode,
2613: \$tstatus,\$tstart,\$tend);
2614: return unless ($role);
2615: if ($role =~ /^cr\//) {
2616: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2617: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2618: }
2619: $trole=Apache::lonnet::plaintext($role);
2620: my ($tdom,$trest,$tsection)=
2621: split(/\//,Apache::lonnet::declutter($where));
2622: if (($role eq 'ca') || ($role eq 'aa')) {
2623: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2624: $home = &Apache::lonnet::hostname($home);
2625: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2626: ': '.$tdom.' '.&mt('Server').': '.$home;
2627: } elsif ($role eq 'au') {
2628: my $home = &Apache::lonnet::homeserver
2629: ($env{'user.name'},$env{'user.domain'});
2630: $home = &Apache::lonnet::hostname($home);
2631: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2632: ': '.$home;
2633: } elsif ($trest) {
2634: my $tcourseid=$tdom.'_'.$trest;
2635: my $crstype = &Apache::loncommon::course_type($tcourseid);
2636: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2637: if ($env{'course.'.$tcourseid.'.description'}) {
2638: $twhere=$env{'course.'.$tcourseid.'.description'};
2639: } else {
2640: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2641: if (%newhash) {
2642: $twhere=$newhash{'description'};
2643: } else {
2644: $twhere=&mt('Currently not available');
2645: }
2646: }
2647: if ($tsection) {
2648: $twhere.= ' '.&mt('Section').': '.$tsection;
2649: }
2650: if ($role ne 'st') {
2651: $twhere.= ' '.&mt('Domain').': '.$tdom;
2652: }
2653: } elsif ($tdom) {
2654: $twhere = &mt('Domain').': '.$tdom;
2655: }
2656: my $output;
2657: if ($trole) {
2658: $output = $trole;
2659: if ($twhere) {
2660: $output .= " -- $twhere";
2661: }
2662: if ($tremark) {
2663: $output .= '<br />'.$tremark;
2664: }
2665: }
2666: return $output;
2667: }
2668:
2669: sub curr_role_status {
2670: my ($start,$end,$refresh,$update) = @_;
2671: if (($start) && ($start<0)) { return 'deleted' };
2672: my $status = 'active';
2673: if (($end) && ($end<=$update)) {
2674: $status = 'previous';
2675: }
2676: if (($start) && ($refresh<$start)) {
2677: $status = 'future';
2678: }
2679: return $status;
2680: }
2681:
2682: sub gather_roleprivs {
2683: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2684: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2685: if (($area ne '') && ($role ne '')) {
2686: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2687: $area,$tstart,$tend);
2688: my $spec=$role.'.'.$area;
2689: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2690: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2691: if ($status eq 'active') {
2692: if ($role =~ /^cr\//) {
2693: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2694: } elsif ($role eq 'gr') {
2695: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2696: $env{'user.domain'},
2697: $env{'user.name'});
2698: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2699: (undef,my $group_privs) = split(/\//,$trole);
2700: $group_privs = &unescape($group_privs);
2701: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2702: } else {
2703: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2704: }
2705: }
2706: }
2707: return;
2708: }
2709:
2710: sub is_active_course {
2711: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2712: return unless(ref($roleshashref) eq 'HASH');
2713: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2714: my $is_active;
2715: foreach my $key (keys(%{$roleshashref})) {
2716: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2717: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2718: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2719: if ($status eq 'active') {
2720: $is_active = 1;
2721: last;
2722: }
2723: }
2724: }
2725: return $is_active;
2726: }
2727:
2728: sub get_roles_functions {
2729: my ($rolescount,$cattype) = @_;
2730: my @links;
2731: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2732: if ($env{'environment.canrequest.author'}) {
2733: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2734: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2735: }
2736: }
2737: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2738: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2739: }
2740: if (&Apache::lonmenu::check_for_rcrs()) {
2741: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2742: }
2743: if ($env{'form.state'} eq 'queued') {
2744: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2745: } else {
2746: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2747: }
2748: if ($env{'user.adv'}) {
2749: if ($env{'form.display'} eq 'showall') {
2750: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2751: } else {
2752: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2753: }
2754: }
2755: unless ($cattype eq 'none') {
2756: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2757: }
2758: my $funcs = &Apache::lonhtmlcommon::start_funclist();
2759: foreach my $link (@links) {
2760: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2761: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2762: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2763: $link->[2].'</a>');
2764: }
2765: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2766: return &Apache::loncommon::head_subbox($funcs);
2767: }
2768:
2769: sub get_queued {
2770: my ($output,%reqcrs);
2771: my ($types,$typenames) = &Apache::loncommon::course_types();
2772: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2773: $env{'user.name'},'^status:');
2774: foreach my $key (keys(%statusinfo)) {
2775: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2776: (undef,my($cdom,$cnum)) = split(/:/,$key);
2777: my $requestkey = $cdom.'_'.$cnum;
2778: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2779: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2780: $env{'user.domain'},$env{'user.name'});
2781: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2782: my $reqtime = $history{'reqtime'};
2783: my $lastupdate = $history{'timestamp'};
2784: my $showtype = $history{'crstype'};
2785: if (defined($typenames->{$history{'crstype'}})) {
2786: $showtype = $typenames->{$history{'crstype'}};
2787: }
2788: my $description;
2789: if (ref($history{'details'}) eq 'HASH') {
2790: $description = $history{details}{'cdescr'};
2791: }
2792: @{$reqcrs{$reqtime}} = ($description,$showtype);
2793: }
2794: }
2795: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2796: if (@sortedtimes > 0) {
2797: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2798: &Apache::loncommon::start_data_table().
2799: &Apache::loncommon::start_data_table_header_row().
2800: '<th>'.&mt('Date requested').'</th>'.
2801: '<th>'.&mt('Course title').'</th>'.
2802: '<th>'.&mt('Course type').'</th>';
2803: &Apache::loncommon::end_data_table_header_row();
2804: foreach my $reqtime (@sortedtimes) {
2805: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2806: $output .= &Apache::loncommon::start_data_table_row().
2807: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2808: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2809: &Apache::loncommon::end_data_table_row();
2810: }
2811: $output .= &Apache::loncommon::end_data_table().
2812: '<br /></p>';
2813: }
2814: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2815: if ($queuedselfenroll) {
2816: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2817: $queuedselfenroll.'<br /></p>';
2818: }
2819: if ($env{'environment.canrequest.author'}) {
2820: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2821: my $requestauthor;
2822: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2823: if (($status eq 'approval') || ($status eq 'approved')) {
2824: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2825: if ($status eq 'approval') {
2826: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2827: &Apache::lonlocal::locallocaltime($timestamp));
2828: } elsif ($status eq 'approved') {
2829: my %roleshash =
2830: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2831: ['active'],['au'],[$env{'user.domain'}]);
2832: if (keys(%roleshash)) {
2833: $output .= '<span class="LC_info">'.
2834: &mt('Your request for an author role has been approved.').'<br />'.
2835: &mt('Use the "Check for changes" link to update your list of roles.').
2836: '</span>';
2837: }
2838: }
2839: $output .= '</p>';
2840: }
2841: }
2842: }
2843: unless ($output) {
2844: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2845: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2846: $output = &mt('No requests for courses, communities or authoring currently queued');
2847: } else {
2848: $output = &mt('No enrollment requests currently queued awaiting approval');
2849: }
2850: }
2851: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2852: $output.'</fieldset></div><br clear="all" />';
2853: }
2854:
2855: 1;
2856: __END__
2857:
2858: =head1 NAME
2859:
2860: Apache::lonroles - User Roles Screen
2861:
2862: =head1 SYNOPSIS
2863:
2864: Invoked by /etc/httpd/conf/srm.conf:
2865:
2866: <Location /adm/roles>
2867: PerlAccessHandler Apache::lonacc
2868: SetHandler perl-script
2869: PerlHandler Apache::lonroles
2870: ErrorDocument 403 /adm/login
2871: ErrorDocument 500 /adm/errorhandler
2872: </Location>
2873:
2874: =head1 OVERVIEW
2875:
2876: =head2 Choosing Roles
2877:
2878: C<lonroles> is a handler that allows a user to switch roles in
2879: mid-session. LON-CAPA attempts to work with "No Role Specified", the
2880: default role that a user has before selecting a role, as widely as
2881: possible, but certain handlers for example need specification which
2882: course they should act on, etc. Both in this scenario, and when the
2883: handler determines via C<lonnet>'s C<&allowed> function that a certain
2884: action is not allowed, C<lonroles> is used as error handler. This
2885: allows the user to select another role which may have permission to do
2886: what they were trying to do.
2887:
2888: =begin latex
2889:
2890: \begin{figure}
2891: \begin{center}
2892: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
2893: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
2894: \end{center}
2895: \end{figure}
2896:
2897: =end latex
2898:
2899: =head2 Role Initialization
2900:
2901: The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
2902:
2903: =head1 INTRODUCTION
2904:
2905: This module enables a user to select what role he wishes to
2906: operate under (instructor, student, teaching assistant, course
2907: coordinator, etc). These roles are pre-established by the actions
2908: of upper-level users.
2909:
2910: This is part of the LearningOnline Network with CAPA project
2911: described at http://www.lon-capa.org.
2912:
2913: =head1 HANDLER SUBROUTINE
2914:
2915: This routine is called by Apache and mod_perl.
2916:
2917: =over 4
2918:
2919: =item *
2920:
2921: Roles Initialization (yes/no)
2922:
2923: =item *
2924:
2925: Get Error Message from Environment
2926:
2927: =item *
2928:
2929: Who is this?
2930:
2931: =item *
2932:
2933: Generate Page Output
2934:
2935: =item *
2936:
2937: Choice or no choice
2938:
2939: =item *
2940:
2941: Table
2942:
2943: =item *
2944:
2945: Privileges
2946:
2947: =back
2948:
2949: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonroles.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / auth