1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.315 2016/10/05 13:30:16 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: =pod
31:
32: =head1 NAME
33:
34: Apache::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 Apache::lonplacementtest;
144: use GDBM_File;
145: use LONCAPA qw(:DEFAULT :match);
146: use HTML::Entities;
147:
148:
149: sub redirect_user {
150: my ($r,$title,$url,$msg) = @_;
151: $msg = $title if (! defined($msg));
152: &Apache::loncommon::content_type($r,'text/html');
153: &Apache::loncommon::no_cache($r);
154: $r->send_http_header;
155:
156: # Breadcrumbs
157: my $brcrum = [{'href' => $url,
158: 'text' => 'Switching Role'},];
159: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
160: {'redirect' => [1,$url],
161: 'bread_crumbs' => $brcrum,});
162: my $end_page = &Apache::loncommon::end_page();
163:
164: # Note to style police:
165: # This must only replace the spaces, nothing else, or it bombs elsewhere.
166: $url=~s/ /\%20/g;
167: $r->print(<<ENDREDIR);
168: $start_page
169: <p>$msg</p>
170: $end_page
171: ENDREDIR
172: return;
173: }
174:
175: sub error_page {
176: my ($r,$error,$dest)=@_;
177: &Apache::loncommon::content_type($r,'text/html');
178: &Apache::loncommon::no_cache($r);
179: $r->send_http_header;
180: return OK if $r->header_only;
181: # Breadcrumbs
182: my $brcrum = [{'href' => $dest,
183: 'text' => 'Problems during Course Initialization'},];
184: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
185: undef,
186: {'bread_crumbs' => $brcrum,})
187: );
188: $r->print(
189: '<script type="text/javascript">'.
190: '// <![CDATA['.
191: &Apache::lonmenu::rawconfig().
192: '// ]]>'.
193: '</script>'.
194: '<p class="LC_error">'.&mt('The following problems occurred:').
195: '<br />'.
196: $error.
197: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
198: );
199: $r->print(&Apache::loncommon::end_page());
200: }
201:
202: sub handler {
203:
204: my $r = shift;
205:
206: # Check for critical messages and redirect if present.
207: my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
208: if ($redirect) {
209: &Apache::loncommon::content_type($r,'text/html');
210: $r->header_out(Location => $url);
211: return REDIRECT;
212: }
213:
214: my $now=time;
215: my $then=$env{'user.login.time'};
216: my $refresh=$env{'user.refresh.time'};
217: my $update=$env{'user.update.time'};
218: if (!$refresh) {
219: $refresh = $then;
220: }
221: if (!$update) {
222: $update = $then;
223: }
224:
225: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
226:
227: # -------------------------------------------------- Check if setting hot list
228: my $hotlist;
229: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
230: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
231: }
232:
233: # -------------------------------------------------------- Check for new roles
234: my $updateresult;
235: if ($env{'form.state'} eq 'doupdate') {
236: my $show_course=&Apache::loncommon::show_course();
237: my $checkingtxt;
238: if ($show_course) {
239: $checkingtxt = &mt('Checking for new courses ...');
240: } else {
241: $checkingtxt = &mt('Checking for new roles ...');
242: }
243: $updateresult = $checkingtxt;
244: $updateresult .= &update_session_roles();
245: &Apache::lonnet::appenv({'user.update.time' => $now});
246: $update = $now;
247: &Apache::loncoursequeueadmin::reqauthor_check();
248: }
249:
250: # -------------------------------------------------- Check for author requests
251: my $reqauthor;
252: if ($env{'form.state'} eq 'requestauthor') {
253: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
254: }
255:
256: my $envkey;
257: my %dcroles = ();
258: my $numdc = &check_fordc(\%dcroles,$update,$then);
259: my $loncaparev = $r->dir_config('lonVersion');
260:
261: # ================================================================== Roles Init
262: if ($env{'form.selectrole'}) {
263:
264: my $locknum=&Apache::lonnet::get_locks();
265: if ($locknum) { return 409; }
266:
267: my $custom_adhoc;
268: if ($env{'form.newrole'}) {
269: $env{'form.'.$env{'form.newrole'}}=1;
270: # Check if this is a Domain Helpdesk role trying to enter a course
271: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
272: if (&Apache::lonnet::allowed('rar',$1)) {
273: $custom_adhoc = 1;
274: }
275: }
276: }
277: if ($env{'request.course.id'}) {
278: # Check if user is CC trying to select a course role
279: if ($env{'form.switchrole'}) {
280: my $switch_is_active;
281: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
282: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
283: if (!$end || $end > $now) {
284: if (!$start || $start < $update) {
285: $switch_is_active = 1;
286: }
287: }
288: }
289: unless ($switch_is_active) {
290: &adhoc_course_role($refresh,$update,$then);
291: }
292: }
293: my %temp=('logout_'.$env{'request.course.id'} => time);
294: &Apache::lonnet::put('email_status',\%temp);
295: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
296: }
297: &Apache::lonnet::appenv({"request.course.id" => '',
298: "request.course.fn" => '',
299: "request.course.uri" => '',
300: "request.course.sec" => '',
301: "request.course.tied" => '',
302: "request.course.timechecked" => '',
303: "request.role" => 'cm',
304: "request.role.adv" => $env{'user.adv'},
305: "request.role.domain" => $env{'user.domain'}});
306: # Check if Domain Helpdesk role trying to enter a course needs privs to be created
307: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)$}) {
308: my $cdom = $1;
309: my $rolename = $2;
310: my $cnum = $3;
311: if ($custom_adhoc) {
312: my %adhocroles = &Apache::lonnet::userenvironment($env{'user.domain'},$env{'user.name'},
313: 'adhocroles.'.$cdom);
314: if (keys(%adhocroles)) {
315: my @adhoc = split(',',$adhocroles{'adhocroles.'.$cdom});
316: if (grep(/^\Q$rolename\E$/,@adhoc)) {
317: if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
318: "cr/$cdom/$cdom".'-domainconfig/'.$rolename)) {
319: &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig'."$rolename.adhoc" => time});
320: }
321: }
322: }
323: }
324: } elsif ($numdc > 0) {
325: # Check if user is a DC trying to enter a course or author space and needs privs to be created
326: foreach my $envkey (keys(%env)) {
327: # Is this an ad-hoc Coordinator role?
328: if (my ($ccrole,$domain,$coursenum) =
329: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
330: if ($dcroles{$domain}) {
331: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
332: $update,$refresh,$now,$ccrole)) {
333: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
334: }
335: }
336: last;
337: }
338: # Is this an ad-hoc CA-role?
339: if (my ($domain,$user) =
340: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
341: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
342: delete($env{$envkey});
343: $env{'form.au./'.$domain.'/'} = 1;
344: my ($server_status,$home) = &check_author_homeserver($user,$domain);
345: if ($server_status eq 'switchserver') {
346: my $trolecode = 'au./'.$domain.'/';
347: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
348: $r->internal_redirect($switchserver);
349: return OK;
350: }
351: last;
352: }
353: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
354: if (((($castart) && ($castart < $now)) || !$castart) &&
355: ((!$caend) || (($caend) && ($caend > $now)))) {
356: my ($server_status,$home) = &check_author_homeserver($user,$domain);
357: if ($server_status eq 'switchserver') {
358: my $trolecode = 'ca./'.$domain.'/'.$user;
359: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
360: $r->internal_redirect($switchserver);
361: return OK;
362: }
363: last;
364: }
365: }
366: # Check if author blocked ca-access
367: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
368: if ($blocked{'domcoord.author'} eq 'blocked') {
369: delete($env{$envkey});
370: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
371: last;
372: }
373: if ($dcroles{$domain}) {
374: my ($server_status,$home) = &check_author_homeserver($user,$domain);
375: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
376: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
377: $refresh,$now,'ca');
378: if ($server_status eq 'switchserver') {
379: my $trolecode = 'ca./'.$domain.'/'.$user;
380: my $switchserver = '/adm/switchserver?'
381: .'otherserver='.$home.'&role='.$trolecode;
382: $r->internal_redirect($switchserver);
383: return OK;
384: }
385: } else {
386: delete($env{$envkey});
387: }
388: } else {
389: delete($env{$envkey});
390: }
391: last;
392: }
393: }
394: }
395:
396: foreach $envkey (keys(%env)) {
397: next if ($envkey!~/^user\.role\./);
398: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
399: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
400: \$trolecode,\$tstatus,\$tstart,\$tend);
401: if ($env{'form.'.$trolecode}) {
402: if ($tstatus eq 'is') {
403: $where=~s/^\///;
404: my ($cdom,$cnum,$csec)=split(/\//,$where);
405: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
406: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
407: my @ids = &Apache::lonnet::current_machine_ids();
408: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
409: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
410: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
411: my ($switchserver,$switchwarning) =
412: &Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
413: $curr_reqd_hash{'internal.releaserequired'});
414: if ($switchwarning ne '' || $switchserver ne '') {
415: &Apache::loncommon::content_type($r,'text/html');
416: &Apache::loncommon::no_cache($r);
417: $r->send_http_header;
418: $r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
419: return OK;
420: }
421: }
422: }
423: }
424: # check for course groups
425: my %coursegroups = &Apache::lonnet::get_active_groups(
426: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
427: my $cgrps = join(':',keys(%coursegroups));
428:
429: # store role if recent_role list being kept
430: if ($env{'environment.recentroles'}) {
431: my %frozen_roles =
432: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
433: &Apache::lonhtmlcommon::store_recent('roles',
434: $trolecode,' ',$frozen_roles{$trolecode});
435: }
436:
437:
438: # check for keyed access
439: if (($role eq 'st') &&
440: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
441: # who is key authority?
442: my $authdom=$cdom;
443: my $authnum=$cnum;
444: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
445: ($authnum,$authdom)=
446: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
447: }
448: # check with key authority
449: unless (&Apache::lonnet::validate_access_key(
450: $env{'environment.key.'.$cdom.'_'.$cnum},
451: $authdom,$authnum)) {
452: # there is no valid key
453: if ($env{'form.newkey'}) {
454: # student attempts to register a new key
455: &Apache::loncommon::content_type($r,'text/html');
456: &Apache::loncommon::no_cache($r);
457: $r->send_http_header;
458: my $swinfo=&Apache::lonmenu::rawconfig();
459: my $start_page=&Apache::loncommon::start_page
460: ('Verifying Access Key to Unlock this Course');
461: my $end_page=&Apache::loncommon::end_page();
462: my $buttontext=&mt('Enter Course');
463: my $message=&mt('Successfully registered key');
464: my $assignresult=
465: &Apache::lonnet::assign_access_key(
466: $env{'form.newkey'},
467: $authdom,$authnum,
468: $cdom,$cnum,
469: $env{'user.domain'},
470: $env{'user.name'},
471: &mt('Assigned from [_1] at [_2] for [_3]'
472: ,$ENV{'REMOTE_ADDR'}
473: ,&Apache::lonlocal::locallocaltime()
474: ,$trolecode)
475: );
476: unless ($assignresult eq 'ok') {
477: $assignresult=~s/^error\:\s*//;
478: $message=&mt($assignresult).
479: '<br /><a href="/adm/logout">'.
480: &mt('Logout').'</a>';
481: $buttontext=&mt('Re-Enter Key');
482: }
483: $r->print(<<ENDENTEREDKEY);
484: $start_page
485: <script type="text/javascript">
486: // <![CDATA[
487: $swinfo
488: // ]]>
489: </script>
490: <form action="" method="post">
491: <input type="hidden" name="selectrole" value="1" />
492: <input type="hidden" name="$trolecode" value="1" />
493: <span class="LC_fontsize_large">$message</span><br />
494: <input type="submit" value="$buttontext" />
495: </form>
496: $end_page
497: ENDENTEREDKEY
498: return OK;
499: } else {
500: # print form to enter a new key
501: &Apache::loncommon::content_type($r,'text/html');
502: &Apache::loncommon::no_cache($r);
503: $r->send_http_header;
504: my $swinfo=&Apache::lonmenu::rawconfig();
505: my $start_page=&Apache::loncommon::start_page
506: ('Enter Access Key to Unlock this Course');
507: my $end_page=&Apache::loncommon::end_page();
508: $r->print(<<ENDENTERKEY);
509: $start_page
510: <script type="text/javascript">
511: // <![CDATA[
512: $swinfo
513: // ]]>
514: </script>
515: <form action="" method="post">
516: <input type="hidden" name="selectrole" value="1" />
517: <input type="hidden" name="$trolecode" value="1" />
518: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
519: <input type="submit" value="Enter key" />
520: </form>
521: $end_page
522: ENDENTERKEY
523: return OK;
524: }
525: }
526: }
527: &Apache::lonnet::log($env{'user.domain'},
528: $env{'user.name'},
529: $env{'user.home'},
530: "Role ".$trolecode);
531:
532: &Apache::lonnet::appenv(
533: {'request.role' => $trolecode,
534: 'request.role.domain' => $cdom,
535: 'request.course.sec' => $csec,
536: 'request.course.groups' => $cgrps});
537: my $tadv=0;
538:
539: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
540: my $msg;
541: my ($furl,$ferr)=
542: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
543: unless ($ferr) {
544: unless (($env{'form.switchrole'}) ||
545: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
546: &Apache::lonnet::put('nohist_crslastlogin',
547: {$env{'user.name'}.':'.$env{'user.domain'}.
548: ':'.$csec.':'.$role => $now},$cdom,$cnum);
549: }
550: my ($feeds,$syllabus_time);
551: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
552: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
553: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
554: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
555: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
556: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
557: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
558: $syllabus_time = $syllabus{'uploaded.lastmodified'};
559: if ($syllabus_time) {
560: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
561: }
562: }
563: }
564: }
565: if (($env{'form.orgurl'}) &&
566: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
567: ($env{'form.orgurl'} ne '/adm/roles')) {
568: my $dest=$env{'form.orgurl'};
569: if ($env{'form.symb'}) {
570: if ($dest =~ /\?/) {
571: $dest .= '&';
572: } else {
573: $dest .= '?';
574: }
575: $dest .= 'symb='.$env{'form.symb'};
576: }
577: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
578: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
579: if (($ferr) && ($tadv)) {
580: &error_page($r,$ferr,$dest);
581: } else {
582: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
583: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
584: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
585: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
586: $cdom.'_'.$cnum);
587: }
588: }
589: $r->internal_redirect($dest);
590: }
591: return OK;
592: } else {
593: if (!$env{'request.course.id'}) {
594: &Apache::lonnet::appenv(
595: {"request.course.id" => $cdom.'_'.$cnum});
596: $furl='/adm/roles?tryagain=1';
597: $msg='<p><span class="LC_error">'
598: .&mt('Could not initialize [_1] at this time.',
599: $env{'course.'.$cdom.'_'.$cnum.'.description'})
600: .'</span></p>'
601: .'<p>'.&mt('Please try again.').'</p>'
602: .'<p>'.$ferr.'</p>';
603: }
604: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
605: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
606:
607: if (($ferr) && ($tadv)) {
608: &error_page($r,$ferr,$furl);
609: } else {
610: # Check to see if the user is a CC entering a course
611: # for the first time
612: if ((($role eq 'cc') || ($role eq 'co'))
613: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
614: $furl = "/adm/helper/course.initialization.helper";
615: # Send the user to the course they selected
616: } elsif ($env{'request.course.id'}) {
617: if ((&Apache::loncommon::course_type() eq 'Placement') &&
618: (!$env{'request.role.adv'})) {
619: my ($score,$incomplete) =
620: &Apache::lonplacementtest::check_completion(undef,undef,1);
621: if (($incomplete) && ($incomplete < 100)) {
622: &redirect_user($r, &mt('Entering [_1]',
623: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
624: '/adm/placement', $msg);
625: return OK;
626: }
627: }
628: my ($dest,$destsymb,$checkenc);
629: $dest = $env{'form.destinationurl'};
630: $destsymb = $env{'form.destsymb'};
631: if ($dest ne '') {
632: if ($env{'form.switchrole'}) {
633: if ($destsymb ne '') {
634: if ($destsymb !~ m{^/enc/}) {
635: unless ($env{'request.role.adv'}) {
636: $checkenc = 1;
637: }
638: }
639: }
640: if ($dest =~ m{^/enc/}) {
641: if ($env{'request.role.adv'}) {
642: $dest = &Apache::lonenc::unencrypted($dest);
643: if ($destsymb eq '') {
644: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
645: $destsymb = &unescape($destsymb);
646: }
647: }
648: } else {
649: if ($destsymb eq '') {
650: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
651: $destsymb = &unescape($destsymb);
652: }
653: unless ($env{'request.role.adv'}) {
654: $checkenc = 1;
655: }
656: }
657: if (($checkenc) && ($destsymb ne '')) {
658: my ($encstate,$unencsymb,$res);
659: $unencsymb = &Apache::lonnet::symbclean($destsymb);
660: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
661: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
662: if ($encstate) {
663: if (($dest ne '') && ($dest !~ m{^/enc/})) {
664: $dest=&Apache::lonenc::encrypted($dest);
665: }
666: }
667: }
668: }
669: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
670: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
671: my $esc_symb = &escape($destsymb);
672: $dest .= '?symb='.$esc_symb;
673: }
674: }
675: &redirect_user($r, &mt('Entering [_1]',
676: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
677: $dest, $msg);
678: return OK;
679: }
680: if (&Apache::lonnet::allowed('whn',
681: $env{'request.course.id'})
682: || &Apache::lonnet::allowed('whn',
683: $env{'request.course.id'}.'/'
684: .$env{'request.course.sec'})
685: ) {
686: my $startpage = &courseloadpage($env{'request.course.id'});
687: unless ($startpage eq 'firstres') {
688: $msg = &mt('Entering [_1] ...',
689: $env{'course.'.$env{'request.course.id'}.'.description'});
690: &redirect_user($r, &mt('New in course'),
691: '/adm/whatsnew?refpage=start', $msg);
692: return OK;
693: }
694: }
695: }
696: # Are we allowed to look at the first resource?
697: my $access;
698: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
699: # If it's an external resource,
700: # strip off the symb argument and possible query
701: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
702: # Unencode $symb
703: $symb = &unescape($symb);
704: # Then check for permission
705: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
706: # For other resources just check for permission
707: } else {
708: $access = &Apache::lonnet::allowed('bre',$furl);
709: }
710: if (!$access) {
711: $furl = &Apache::lonpageflip::first_accessible_resource();
712: } elsif ($access eq 'B') {
713: $furl = '/adm/navmaps?showOnlyHomework=1';
714: }
715: $msg = &mt('Entering [_1] ...',
716: $env{'course.'.$cdom.'_'.$cnum.'.description'});
717: &redirect_user($r, &mt('Entering [_1]',
718: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
719: $furl, $msg);
720: }
721: return OK;
722: }
723: }
724: #
725: # Send the user to the construction space they selected
726: if ($role =~ /^(au|ca|aa)$/) {
727: my $redirect_url = '/priv/';
728: if ($role eq 'au') {
729: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
730: } else {
731: $redirect_url .= $where;
732: }
733: $redirect_url .= '/';
734: &redirect_user($r,&mt('Entering Authoring Space'),
735: $redirect_url);
736: return OK;
737: }
738: if ($role eq 'dc') {
739: my $redirect_url = '/adm/menu/';
740: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
741: $redirect_url);
742: return OK;
743: }
744: if ($role eq 'dh') {
745: my $redirect_url = '/adm/menu/';
746: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
747: $redirect_url);
748: return OK;
749: }
750: if ($role eq 'sc') {
751: my $redirect_url = '/adm/grades?command=scantronupload';
752: &redirect_user($r,&mt('Loading Data Upload Page'),
753: $redirect_url);
754: return OK;
755: }
756: }
757: }
758: }
759: }
760:
761:
762: # =============================================================== No Roles Init
763:
764: &Apache::loncommon::content_type($r,'text/html');
765: &Apache::loncommon::no_cache($r);
766: $r->send_http_header;
767: return OK if $r->header_only;
768:
769: my $crumbtext = 'User Roles';
770: my $pagetitle = 'My Roles';
771: my $recent = &mt('Recent Roles');
772: my $standby = &mt('Role selected. Please stand by.');
773: my $show_course=&Apache::loncommon::show_course();
774: if ($show_course) {
775: $crumbtext = 'Courses';
776: $pagetitle = 'My Courses';
777: $recent = &mt('Recent Courses');
778: $standby = &mt('Course selected. Please stand by.');
779: }
780: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
781:
782: my %roles_in_env;
783: my $showcount = &roles_from_env(\%roles_in_env,$update);
784:
785: my $swinfo=&Apache::lonmenu::rawconfig();
786: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
787: my $cattype = 'std';
788: if ($domdefs{'catauth'}) {
789: $cattype = $domdefs{'catauth'};
790: }
791: my $placementonly;
792: if ($showcount == 1) {
793: if ($env{'request.course.id'}) {
794: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
795: $placementonly = 1;
796: }
797: } else {
798: foreach my $rolecode (keys(%roles_in_env)) {
799: my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
800: if ($cid) {
801: my %coursedescription =
802: &Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
803: if ($coursedescription{'type'} eq 'Placement') {
804: $placementonly = 1;
805: }
806: last;
807: }
808: }
809: }
810: }
811: my ($start_page,$funcs);
812: if ($placementonly) {
813: $start_page=&Apache::loncommon::start_page($pagetitle,undef,
814: {bread_crumbs=>$brcrum,crstype=>'Placement'});
815: } else {
816: $funcs = &get_roles_functions($showcount,$cattype);
817: my $crumbsright;
818: if ($env{'browser.mobile'}) {
819: $crumbsright = $funcs;
820: undef($funcs);
821: }
822: $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
823: bread_crumbs_component=>$crumbsright});
824: }
825: &js_escape(\$standby);
826: 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 />';
827:
828: $r->print(<<ENDHEADER);
829: $start_page
830: $funcs
831: <noscript>
832: $noscript
833: </noscript>
834: <script type="text/javascript">
835: // <![CDATA[
836: $swinfo
837: window.focus();
838:
839: active=true;
840:
841: function enterrole (thisform,rolecode,buttonname) {
842: if (active) {
843: active=false;
844: document.title='$standby';
845: window.status='$standby';
846: thisform.newrole.value=rolecode;
847: thisform.submit();
848: } else {
849: alert('$standby');
850: }
851: }
852:
853: function rolesView (caller) {
854: if ((caller == 'showall') || (caller == 'noshowall')) {
855: document.rolechoice.display.value = caller;
856: } else {
857: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
858: (caller == 'queued')) {
859: document.rolechoice.state.value = caller;
860: }
861: }
862: document.rolechoice.selectrole.value='';
863: document.rolechoice.submit();
864: }
865:
866: // ]]>
867: </script>
868: ENDHEADER
869:
870: # ------------------------------------------ Get Error Message from Environment
871:
872: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
873: if ($env{'user.error.msg'}) {
874: $r->log_reason(
875: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
876: }
877:
878: # ------------------------------------------------- Can this user re-init, etc?
879:
880: my $advanced=$env{'user.adv'};
881: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
882: my $tryagain=$env{'form.tryagain'};
883: my $reinit=$env{'user.reinit'};
884: delete $env{'user.reinit'};
885:
886: # -------------------------------------------------------- Generate Page Output
887: # --------------------------------------------------------------- Error Header?
888: if ($error) {
889: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
890: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
891: if ($priv ne '') {
892: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
893: }
894: if ($fn ne '') {
895: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
896: }
897: if ($msg ne '') {
898: $r->print(&mt('Action : ').$msg."\n");
899: }
900: $r->print("</pre><hr />");
901: my $url=$fn;
902: my $last;
903: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
904: &GDBM_READER(),0640)) {
905: $last=$hash{'last_known'};
906: untie(%hash);
907: }
908: if ($last) { $fn.='?symb='.&escape($last); }
909:
910: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
911: &Apache::lonenc::check_encrypt($fn));
912: } else {
913: if ($env{'user.error.msg'}) {
914: if ($reinit) {
915: $r->print(
916: '<h3><span class="LC_error">'.
917: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
918: } else {
919: $r->print(
920: '<h3><span class="LC_error">'.
921: &mt('You need to choose another user role or enter a specific course or community for this function.').
922: '</span></h3>');
923: }
924: }
925: }
926: if ($nochoose) {
927: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
928: &mt('This action is currently not authorized.').'</span>'.
929: &Apache::loncommon::end_page());
930: return OK;
931: } else {
932: if ($updateresult || $reqauthor || $hotlist) {
933: my $showresult = '<div>';
934: if ($updateresult) {
935: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
936: }
937: if ($reqauthor) {
938: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
939: }
940: if ($hotlist) {
941: $showresult .= $hotlist;
942: }
943: $showresult .= '</div>';
944: $r->print($showresult);
945: } elsif ($env{'form.state'} eq 'queued') {
946: $r->print(&get_queued());
947: }
948: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
949: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
950: }
951: my $display = ($env{'form.display'} =~ /^(showall)$/);
952: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
953: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
954: $r->print('<input type="hidden" name="selectrole" value="1" />');
955: $r->print('<input type="hidden" name="newrole" value="" />');
956: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
957: $r->print('<input type="hidden" name="state" value="" />');
958: }
959: $r->rflush();
960:
961: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
962: my ($countactive,$countfuture,$inrole,$possiblerole) =
963: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
964: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
965: $refresh = $now;
966: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
967: if ($countactive == 1) {
968: if ($env{'request.course.id'}) {
969: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
970: $placementonly = 1;
971: }
972: } elsif ($possiblerole) {
973: if ($possiblerole =~ m{^st\./($match_domain)/($match_courseid)(?:/|$)}) {
974: if ($env{'course.'.$1.'_'.$2.'.type'} eq 'Placement') {
975: $placementonly = 1;
976: }
977: }
978: }
979: }
980: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'}) &&
981: (!$placementonly)) {
982: if ($countactive > 0) {
983: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
984: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
985: $r->print(
986: '<p>'
987: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
988: .' to view all [_5] LON-CAPA courses and communities.'
989: ,'<b>'
990: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
991: ,'</a>'
992: ,'</b>'
993: ,'"'.$domdesc.'"')
994: .'<br />'
995: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
996: .' you may be able to enroll if self-enrollment is permitted.'
997: ,'<b>','</b>')
998: .'</p>'
999: );
1000: }
1001: }
1002:
1003: # No active roles
1004: if ($countactive==0) {
1005: &requestcourse_advice($r,$cattype,$inrole);
1006: $r->print('</form>');
1007: if ($countfuture) {
1008: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1009: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1010: $nochoose);
1011: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1012: \%roletext);
1013: my $tremark='';
1014: my $tbg;
1015: if ($env{'request.role'} eq 'cm') {
1016: $tbg="LC_roles_selected";
1017: $tremark=&mt('Currently selected.').' ';
1018: } else {
1019: $tbg="LC_roles_is";
1020: }
1021: $r->print(&Apache::loncommon::start_data_table_row()
1022: .'<td class="'.$tbg.'"> </td>'
1023: .'<td colspan="3">'
1024: .&mt('No role specified')
1025: .'</td>'
1026: .'<td>'.$tremark.' </td>'
1027: .&Apache::loncommon::end_data_table_row()
1028: );
1029:
1030: $r->print(&Apache::loncommon::end_data_table());
1031: }
1032: $r->print(&Apache::loncommon::end_page());
1033: return OK;
1034: } elsif (($placementonly) && ($env{'request.role'} eq 'cm')) {
1035: $r->print('<h3>'.&mt('Please stand by.').'</h3>
1036: <input type="hidden" name="'.$possiblerole.'" value="1" />
1037: <noscript><br />
1038: <input type="submit" name="submit" value="'.&mt('Continue').'" />
1039: </noscript></form>');
1040: $r->rflush();
1041: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
1042: $r->print(&Apache::loncommon::end_page());
1043: return OK;
1044: }
1045: # ----------------------------------------------------------------------- Table
1046:
1047: if ($numdc > 0) {
1048: $r->print(&coursepick_jscript());
1049: $r->print(&Apache::loncommon::coursebrowser_javascript().
1050: &Apache::loncommon::authorbrowser_javascript());
1051: }
1052:
1053: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1054: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1055: }
1056: if ($env{'form.destinationurl'}) {
1057: $r->print('<input type="hidden" name="destinationurl" value="'.
1058: $env{'form.destinationurl'}.'" />');
1059: if ($env{'form.destsymb'} ne '') {
1060: $r->print('<input type="hidden" name="destsymb" value="'.
1061: $env{'form.destsymb'}.'" />');
1062: }
1063: }
1064:
1065: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1066: if ($env{'environment.recentroles'}) {
1067: my %recent_roles =
1068: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1069: my $output='';
1070: foreach my $role (sort(keys(%recent_roles))) {
1071: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1072: $output.= &Apache::loncommon::start_data_table_row().
1073: $roletext{'user.role.'.$role}->[0].
1074: &Apache::loncommon::end_data_table_row();
1075: if ($roletext{'user.role.'.$role}->[1] ne '') {
1076: $output .= &Apache::loncommon::continue_data_table_row().
1077: $roletext{'user.role.'.$role}->[1].
1078: &Apache::loncommon::end_data_table_row();
1079: }
1080: if ($role =~ m{dc\./($match_domain)/}
1081: && $dcroles{$1}) {
1082: $output .= &adhoc_roles_row($1,'recent');
1083: }
1084: } elsif ($numdc > 0) {
1085: unless ($role =~/^error\:/) {
1086: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1087: if ($roletext) {
1088: $output.= &Apache::loncommon::start_data_table_row().
1089: $roletext.
1090: &Apache::loncommon::end_data_table_row();
1091: if ($role_text_end) {
1092: $output .= &Apache::loncommon::continue_data_table_row().
1093: $role_text_end.
1094: &Apache::loncommon::end_data_table_row();
1095: }
1096: }
1097: }
1098: }
1099: }
1100: if ($output) {
1101: $r->print(&Apache::loncommon::start_data_table_empty_row()
1102: .'<td align="center" colspan="5">'
1103: .$recent
1104: .'</td>'
1105: .&Apache::loncommon::end_data_table_empty_row()
1106: );
1107: $r->print($output);
1108: $doheaders ++;
1109: }
1110: }
1111: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1112: if ($countactive > 1) {
1113: my $tremark='';
1114: my $tbg;
1115: if ($env{'request.role'} eq 'cm') {
1116: $tbg="LC_roles_selected";
1117: $tremark=&mt('Currently selected.').' ';
1118: } else {
1119: $tbg="LC_roles_is";
1120: }
1121: $r->print(&Apache::loncommon::start_data_table_row());
1122: unless ($nochoose) {
1123: if ($env{'request.role'} ne 'cm') {
1124: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1125: &mt('Select').'" name="cm" /></td>');
1126: } else {
1127: $r->print('<td class="'.$tbg.'"> </td>');
1128: }
1129: }
1130: $r->print('<td colspan="3">'
1131: .&mt('No role specified')
1132: .'</td>'
1133: .'<td>'.$tremark.' </td>'
1134: .&Apache::loncommon::end_data_table_row()
1135: );
1136: }
1137: $r->print(&Apache::loncommon::end_data_table());
1138: unless ($nochoose) {
1139: $r->print("</form>\n");
1140: }
1141: # ------------------------------------------------------------ Privileges Info
1142: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1143: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1144: $r->print(&privileges_info());
1145: }
1146: my $announcements = &Apache::lonnet::getannounce();
1147: $r->print(
1148: '<br />'.
1149: '<h2>'.&mt('Announcements').'</h2>'.
1150: $announcements
1151: ) unless (!$announcements);
1152: if ($advanced) {
1153: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1154: $r->print('<p><small><i>'
1155: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1156: .'</i></small></p>');
1157: }
1158: $r->print(&Apache::loncommon::end_page());
1159: return OK;
1160: }
1161:
1162: sub roles_from_env {
1163: my ($roleshash,$update) = @_;
1164: my $count = 0;
1165: if (ref($roleshash) eq 'HASH') {
1166: foreach my $envkey (keys(%env)) {
1167: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1168: next if ($1 eq 'gr');
1169: $roleshash->{$envkey} = $env{$envkey};
1170: my ($start,$end) = split(/\./,$env{$envkey});
1171: unless ($end && $end<$update) {
1172: $count ++;
1173: }
1174: }
1175: }
1176: }
1177: return $count;
1178: }
1179:
1180: sub gather_roles {
1181: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1182: $timezones,$loncaparev) = @_;
1183: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1184: my $advanced = $env{'user.adv'};
1185: my $tryagain = $env{'form.tryagain'};
1186: my @ids = &Apache::lonnet::current_machine_ids();
1187: if (ref($roles_in_env) eq 'HASH') {
1188: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1189: my $button = 1;
1190: my $switchserver='';
1191: my $switchwarning;
1192: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1193: $tend,$tremark,$tstatus,$tpstart,$tpend);
1194: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1195: \$trolecode,\$tstatus,\$tstart,\$tend);
1196: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1197: $tremark='';
1198: $tpstart=' ';
1199: $tpend=' ';
1200: if ($env{'request.role'} eq $trolecode) {
1201: $tstatus='selected';
1202: }
1203: my $tbg;
1204: if (($tstatus eq 'is')
1205: || ($tstatus eq 'selected')
1206: || ($tstatus eq 'future')
1207: || ($env{'form.display'} eq 'showall')) {
1208: my $timezone = &role_timezone($where,$timezones);
1209: if ($tstart) {
1210: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1211: }
1212: if ($tend) {
1213: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1214: }
1215: if ($tstatus eq 'is') {
1216: $tbg='LC_roles_is';
1217: $possiblerole=$trolecode;
1218: $countactive++;
1219: } elsif ($tstatus eq 'future') {
1220: $tbg='LC_roles_future';
1221: $button=0;
1222: $futureroles->{$trolecode} = $tstart.':'.$tend;
1223: $countfuture ++;
1224: } elsif ($tstatus eq 'expired') {
1225: $tbg='LC_roles_expired';
1226: $button=0;
1227: } elsif ($tstatus eq 'will_not') {
1228: $tbg='LC_roles_will_not';
1229: $tremark.=&mt('Expired after logout.').' ';
1230: } elsif ($tstatus eq 'selected') {
1231: $tbg='LC_roles_selected';
1232: $inrole=1;
1233: $countactive++;
1234: $tremark.=&mt('Currently selected.').' ';
1235: }
1236: my $trole;
1237: if ($role =~ /^cr\//) {
1238: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1239: if ($tremark) { $tremark.='<br />'; }
1240: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1241: }
1242: $trole=Apache::lonnet::plaintext($role);
1243: my $ttype;
1244: my $twhere;
1245: my $skipcal;
1246: my ($tdom,$trest,$tsection)=
1247: split(/\//,Apache::lonnet::declutter($where));
1248: # First, Co-Authorship roles
1249: if (($role eq 'ca') || ($role eq 'aa')) {
1250: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1251: my $allowed=0;
1252: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1253: if (!$allowed) {
1254: $button=0;
1255: $switchserver='otherserver='.$home.'&role='.$trolecode;
1256: }
1257: #next if ($home eq 'no_host');
1258: $home = &Apache::lonnet::hostname($home);
1259: $ttype='Authoring Space';
1260: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1261: ': '.$tdom.'<br />'.
1262: ' '.&mt('Server').': '.$home;
1263: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1264: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1265: $sortkey=$role."$trest:$tdom";
1266: } elsif ($role eq 'au') {
1267: # Authors
1268: my $home = &Apache::lonnet::homeserver
1269: ($env{'user.name'},$env{'user.domain'});
1270: my $allowed=0;
1271: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1272: if (!$allowed) {
1273: $button=0;
1274: $switchserver='otherserver='.$home.'&role='.$trolecode;
1275: }
1276: #next if ($home eq 'no_host');
1277: $home = &Apache::lonnet::hostname($home);
1278: $ttype='Authoring Space';
1279: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1280: ': '.$home;
1281: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1282: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1283: $sortkey=$role;
1284: } elsif ($trest) {
1285: my $tcourseid=$tdom.'_'.$trest;
1286: $ttype = &Apache::loncommon::course_type($tcourseid);
1287: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1288: if ($env{'course.'.$tcourseid.'.description'}) {
1289: my $home=$env{'course.'.$tcourseid.'.home'};
1290: $twhere=$env{'course.'.$tcourseid.'.description'};
1291: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1292: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1293: unless ($twhere eq &mt('Currently not available')) {
1294: $twhere.=' <span class="LC_fontsize_small">'.
1295: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1296: '</span>';
1297: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1298: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1299: if ($required ne '') {
1300: ($switchserver,$switchwarning) =
1301: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1302: if ($switchserver || $switchwarning) {
1303: $button = 0;
1304: }
1305: }
1306: }
1307: }
1308: } else {
1309: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1310: if (%newhash) {
1311: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1312: "\0".$envkey;
1313: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1314: ' <span class="LC_fontsize_small">'.
1315: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1316: '</span>';
1317: $ttype = $newhash{'type'};
1318: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1319: my $home = $newhash{'home'};
1320: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1321: my $required = $newhash{'internal.releaserequired'};
1322: if ($required ne '') {
1323: ($switchserver,$switchwarning) =
1324: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1325: if ($switchserver || $switchwarning) {
1326: $button = 0;
1327: }
1328: }
1329: }
1330: } else {
1331: $twhere=&mt('Currently not available');
1332: $env{'course.'.$tcourseid.'.description'}=$twhere;
1333: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1334: $ttype = 'Unavailable';
1335: $skipcal = 1;
1336: }
1337: }
1338: if ($ttype eq 'Placement') {
1339: $ttype = 'Placement Test';
1340: }
1341: if ($tsection) {
1342: $twhere.='<br />'.&mt('Section').': '.$tsection;
1343: }
1344: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1345: } elsif ($tdom) {
1346: $ttype='Domain';
1347: $twhere=$tdom;
1348: $sortkey=$role.$twhere;
1349: } else {
1350: $ttype='System';
1351: $twhere=&mt('system wide');
1352: $sortkey=$role.$twhere;
1353: }
1354: ($role_text,$role_text_end) =
1355: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1356: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1357: $tpend,$nochoose,$button,$switchserver,$reinit,
1358: $switchwarning,$skipcal);
1359: $roletext->{$envkey}=[$role_text,$role_text_end];
1360: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1361: $sortrole->{$sortkey}=$envkey;
1362: $roleclass->{$envkey}=$ttype;
1363: }
1364: }
1365: }
1366: return ($countactive,$countfuture,$inrole,$possiblerole);
1367: }
1368:
1369: sub role_timezone {
1370: my ($where,$timezones) = @_;
1371: my $timezone;
1372: if (ref($timezones) eq 'HASH') {
1373: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1374: my $cdom = $1;
1375: my $cnum = $2;
1376: if ($cdom && $cnum) {
1377: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1378: my $tz;
1379: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1380: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1381: } else {
1382: my %timehash =
1383: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1384: $tz = $timehash{'timezone'};
1385: }
1386: if ($tz eq '') {
1387: if (!exists($timezones->{$cdom})) {
1388: my %domdefaults =
1389: &Apache::lonnet::get_domain_defaults($cdom);
1390: if ($domdefaults{'timezone_def'} eq '') {
1391: $timezones->{$cdom} = 'local';
1392: } else {
1393: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1394: }
1395: }
1396: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1397: } else {
1398: $timezones->{$cdom.'_'.$cnum} =
1399: &Apache::lonlocal::gettimezone($tz);
1400: }
1401: }
1402: $timezone = $timezones->{$cdom.'_'.$cnum};
1403: }
1404: } else {
1405: my ($tdom) = ($where =~ m{^/($match_domain)});
1406: if ($tdom) {
1407: if (!exists($timezones->{$tdom})) {
1408: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1409: if ($domdefaults{'timezone_def'} eq '') {
1410: $timezones->{$tdom} = 'local';
1411: } else {
1412: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1413: }
1414: }
1415: $timezone = $timezones->{$tdom};
1416: }
1417: }
1418: if ($timezone eq 'local') {
1419: $timezone = undef;
1420: }
1421: }
1422: return $timezone;
1423: }
1424:
1425: sub roletable_headers {
1426: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1427: my $doheaders;
1428: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1429: $r->print('<br />'
1430: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1431: .&Apache::loncommon::start_data_table_header_row()
1432: );
1433: if (!$nochoose) { $r->print('<th> </th>'); }
1434: $r->print('<th>'.&mt('User Role').'</th>'
1435: .'<th>'.&mt('Extent').'</th>'
1436: .'<th>'.&mt('Start').'</th>'
1437: .'<th>'.&mt('End').'</th>'
1438: .&Apache::loncommon::end_data_table_header_row()
1439: );
1440: $doheaders=-1;
1441: my @roletypes = &roletypes();
1442: foreach my $type (@roletypes) {
1443: my $haverole=0;
1444: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1445: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1446: $haverole=1;
1447: }
1448: }
1449: if ($haverole) { $doheaders++; }
1450: }
1451: }
1452: return $doheaders;
1453: }
1454:
1455: sub roletypes {
1456: my @types = ('Domain','Authoring Space','Course','Placement Test','Community','Unavailable','System');
1457: return @types;
1458: }
1459:
1460: sub print_rolerows {
1461: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1462: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1463: my @types = &roletypes();
1464: foreach my $type (@types) {
1465: my $output;
1466: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1467: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1468: if (ref($roletext) eq 'HASH') {
1469: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1470: $output.= &Apache::loncommon::start_data_table_row().
1471: $roletext->{$sortrole->{$which}}->[0].
1472: &Apache::loncommon::end_data_table_row();
1473: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1474: $output .= &Apache::loncommon::continue_data_table_row().
1475: $roletext->{$sortrole->{$which}}->[1].
1476: &Apache::loncommon::end_data_table_row();
1477: }
1478: }
1479: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
1480: if (ref($dcroles) eq 'HASH') {
1481: if ($dcroles->{$1}) {
1482: $output .= &adhoc_roles_row($1,'');
1483: }
1484: }
1485: }
1486: }
1487: }
1488: }
1489: if ($output) {
1490: if ($doheaders > 0) {
1491: $r->print(&Apache::loncommon::start_data_table_empty_row()
1492: .'<td align="center" colspan="5">'
1493: .&mt($type)
1494: .'</td>'
1495: .&Apache::loncommon::end_data_table_empty_row()
1496: );
1497: }
1498: $r->print($output);
1499: }
1500: }
1501: }
1502: }
1503:
1504: sub findcourse_advice {
1505: my ($r,$cattype) = @_;
1506: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1507: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1508: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1509: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1510: <ul>
1511: <li>'.&mt('The course has yet to be created.').'</li>
1512: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1513: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1514: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1515: <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>
1516: </ul>');
1517: } else {
1518: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1519: }
1520: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1521: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1522: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1523: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1524: &Apache::loncoursequeueadmin::queued_selfenrollment());
1525: }
1526: return;
1527: }
1528:
1529: sub requestcourse_advice {
1530: my ($r,$cattype,$inrole) = @_;
1531: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1532: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1533: my (%can_request,%request_doms,$output);
1534: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1535: if (keys(%request_doms) > 0) {
1536: my ($types,$typename) = &Apache::loncommon::course_types();
1537: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1538: my (@reqdoms,@reqtypes);
1539: foreach my $type (sort(keys(%request_doms))) {
1540: push(@reqtypes,$type);
1541: if (ref($request_doms{$type}) eq 'ARRAY') {
1542: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1543: $output .=
1544: '<li>'
1545: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1546: '<i>',
1547: '</i>',
1548: '<b>'.$domstr.'</b>')
1549: .'</li>';
1550: foreach my $dom (@{$request_doms{$type}}) {
1551: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1552: push(@reqdoms,$dom);
1553: }
1554: }
1555: }
1556: }
1557: my @showtypes;
1558: foreach my $type (@{$types}) {
1559: if (grep(/^\Q$type\E$/,@reqtypes)) {
1560: push(@showtypes,$type);
1561: }
1562: }
1563: my $requrl = '/adm/requestcourse';
1564: if (@reqdoms == 1) {
1565: $requrl .= '?showdom='.$reqdoms[0];
1566: }
1567: if (@showtypes > 0) {
1568: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1569: }
1570: if (@reqdoms == 1 || @showtypes > 0) {
1571: $requrl .= '&state=crstype&action=new';
1572: }
1573: if ($output) {
1574: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1575: '<p>'.
1576: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1577: '<ul>'.
1578: $output.
1579: '</ul>'.
1580: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1581: '<a href="'.$requrl.'">','</a>').
1582: '</p>');
1583: }
1584: }
1585: } elsif (!$env{'user.adv'}) {
1586: if ($inrole) {
1587: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1588: } else {
1589: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1590: }
1591: &findcourse_advice($r,$cattype);
1592: }
1593: return;
1594: }
1595:
1596: sub privileges_info {
1597: my ($which) = @_;
1598: my $output;
1599:
1600: $which ||= $env{'request.role'};
1601:
1602: foreach my $envkey (sort(keys(%env))) {
1603: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1604:
1605: my $where=$1;
1606: my $ttype;
1607: my $twhere;
1608: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1609: if ($trest) {
1610: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1611: $ttype='Authoring Space';
1612: $twhere='User: '.$trest.', Domain: '.$tdom;
1613: } else {
1614: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1615: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1616: if ($tsec) {
1617: my $sec_type = 'Section';
1618: if (exists($env{"user.role.gr.$where"})) {
1619: $sec_type = 'Group';
1620: }
1621: $twhere.=' ('.$sec_type.': '.$tsec.')';
1622: }
1623: }
1624: } elsif ($tdom) {
1625: $ttype='Domain';
1626: $twhere=$tdom;
1627: } else {
1628: $ttype='System';
1629: $twhere='/';
1630: }
1631: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1632: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1633: next if (!$priv);
1634:
1635: my ($prv,$restr)=split(/\&/,$priv);
1636: my $trestr='';
1637: if ($restr ne 'F') {
1638: $trestr.=' ('.
1639: join(', ',
1640: map { &Apache::lonnet::plaintext($_) }
1641: (split('',$restr))).') ';
1642: }
1643: $output .= "\n\t".
1644: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1645: }
1646: $output .= "\n".'</ul>';
1647: }
1648: return $output;
1649: }
1650:
1651: sub build_roletext {
1652: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
1653: $tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning,$skipcal) = @_;
1654: my ($roletext,$roletext_end);
1655: my $is_dc=($trolecode =~ m/^dc\./);
1656: my $rowspan=($is_dc) ? ''
1657: : ' rowspan="2" ';
1658:
1659: unless ($nochoose) {
1660: my $buttonname=$trolecode;
1661: $buttonname=~s/\W//g;
1662: if (!$button) {
1663: if ($switchserver) {
1664: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1665: .'<a href="/adm/switchserver?'.$switchserver.'">'
1666: .&mt('Switch Server')
1667: .'</a></td>';
1668: } else {
1669: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1670: }
1671: if ($switchwarning) {
1672: if ($tremark eq '') {
1673: $tremark = $switchwarning;
1674: } else {
1675: $tremark .= '<br />'.$switchwarning;
1676: }
1677: }
1678: } elsif ($tstatus eq 'is') {
1679: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1680: '<input name="'.$buttonname.'" type="button" value="'.
1681: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1682: $trolecode."','".$buttonname.'\');" /></td>';
1683: } elsif ($tryagain) {
1684: $roletext.=
1685: '<td'.$rowspan.' class="'.$tbg.'">'.
1686: '<input name="'.$buttonname.'" type="button" value="'.
1687: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1688: $trolecode."','".$buttonname.'\');" /></td>';
1689: } elsif ($advanced) {
1690: $roletext.=
1691: '<td'.$rowspan.' class="'.$tbg.'">'.
1692: '<input name="'.$buttonname.'" type="button" value="'.
1693: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1694: $trolecode."','".$buttonname.'\');" /></td>';
1695: } elsif ($reinit) {
1696: $roletext.=
1697: '<td'.$rowspan.' class="'.$tbg.'">'.
1698: '<input name="'.$buttonname.'" type="button" value="'.
1699: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1700: $trolecode."','".$buttonname.'\');" /></td>';
1701: } else {
1702: $roletext.=
1703: '<td'.$rowspan.' class="'.$tbg.'">'.
1704: '<input name="'.$buttonname.'" type="button" value="'.
1705: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1706: $trolecode."','".$buttonname.'\');" /></td>';
1707: }
1708: }
1709: if (($trolecode !~ m/^(dc|ca|au|aa)\./) && (!$skipcal)) {
1710: $tremark.=&Apache::lonannounce::showday(time,1,
1711: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1712: }
1713: $roletext.='<td>'.$trole.'</td>'
1714: .'<td>'.$twhere.'</td>'
1715: .'<td>'.$tpstart.'</td>'
1716: .'<td>'.$tpend.'</td>';
1717: if (!$is_dc) {
1718: $roletext_end = '<td colspan="4">'.
1719: $tremark.' '.
1720: '</td>';
1721: }
1722: return ($roletext,$roletext_end);
1723: }
1724:
1725: sub check_author_homeserver {
1726: my ($uname,$udom)=@_;
1727: if (($uname eq '') || ($udom eq '')) {
1728: return ('fail','');
1729: }
1730: my $home = &Apache::lonnet::homeserver($uname,$udom);
1731: if (&Apache::lonnet::host_domain($home) ne $udom) {
1732: return ('fail',$home);
1733: }
1734: my @ids=&Apache::lonnet::current_machine_ids();
1735: if (grep(/^\Q$home\E$/,@ids)) {
1736: return ('ok',$home);
1737: } else {
1738: return ('switchserver',$home);
1739: }
1740: }
1741:
1742: sub check_fordc {
1743: my ($dcroles,$update,$then) = @_;
1744: my $numdc = 0;
1745: if ($env{'user.adv'}) {
1746: foreach my $envkey (sort(keys(%env))) {
1747: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1748: my $dcdom = $1;
1749: my $livedc = 1;
1750: my ($tstart,$tend)=split(/\./,$env{$envkey});
1751: my $limit = $update;
1752: if ($env{'request.role'} eq 'dc./'.$dcdom.'/') {
1753: $limit = $then;
1754: }
1755: if ($tstart && $tstart>$limit) { $livedc = 0; }
1756: if ($tend && $tend <$limit) { $livedc = 0; }
1757: if ($livedc) {
1758: $$dcroles{$dcdom} = $envkey;
1759: $numdc++;
1760: }
1761: }
1762: }
1763: }
1764: return $numdc;
1765: }
1766:
1767: sub adhoc_course_role {
1768: my ($refresh,$update,$then) = @_;
1769: my ($cdom,$cnum,$crstype);
1770: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1771: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1772: $crstype = &Apache::loncommon::course_type();
1773: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1774: my $setprivs;
1775: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1776: $setprivs = 1;
1777: } else {
1778: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1779: if (($start && ($start>$refresh || $start == -1)) ||
1780: ($end && $end<$update)) {
1781: $setprivs = 1;
1782: }
1783: }
1784: unless ($setprivs) {
1785: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1786: $setprivs = 1;
1787: }
1788: }
1789: if ($setprivs) {
1790: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1791: my $role = $1;
1792: my $custom_role = $2;
1793: my $usec = $3;
1794: if ($role eq 'cr') {
1795: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1796: $role .= $custom_role;
1797: } else {
1798: return;
1799: }
1800: }
1801: my (%userroles,%newrole,%newgroups,%group_privs);
1802: my %cgroups =
1803: &Apache::lonnet::get_active_groups($env{'user.domain'},
1804: $env{'user.name'},$cdom,$cnum);
1805: foreach my $group (keys(%cgroups)) {
1806: $group_privs{$group} =
1807: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1808: }
1809: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1810: my $area = '/'.$cdom.'/'.$cnum;
1811: my $spec = $role.'.'.$area;
1812: if ($usec ne '') {
1813: $spec .= '/'.$usec;
1814: $area .= '/'.$usec;
1815: }
1816: if ($role =~ /^cr/) {
1817: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1818: } else {
1819: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1820: }
1821: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1822: my $adhocstart = $refresh-1;
1823: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1824: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1825: }
1826: }
1827: }
1828: return;
1829: }
1830:
1831: sub check_forcc {
1832: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1833: my ($is_cc,$ccrole);
1834: if ($crstype eq 'Community') {
1835: $ccrole = 'co';
1836: } else {
1837: $ccrole = 'cc';
1838: }
1839: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1840: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1841: if (defined($env{$envkey})) {
1842: $is_cc = 1;
1843: my ($tstart,$tend)=split(/\./,$env{$envkey});
1844: my $limit = $update;
1845: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1846: $limit = $then;
1847: }
1848: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1849: if ($tend && $tend <$limit) { $is_cc = 0; }
1850: }
1851: }
1852: return $is_cc;
1853: }
1854:
1855: sub courselink {
1856: my ($dcdom,$rowtype) = @_;
1857: my $courseform=&Apache::loncommon::selectcourse_link
1858: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1859: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1860: $dcdom,$dcdom,undef,'Course/Community');
1861: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1862: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1863: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1864: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1865: return $courseform.$hiddenitems;
1866: }
1867:
1868: sub coursepick_jscript {
1869: my %js_lt = &Apache::lonlocal::texthash(
1870: 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.",
1871: youc => 'You can only use this screen to select courses and communities in the current domain.',
1872: );
1873: &js_escape(\%js_lt);
1874: my $verify_script = <<"END";
1875: <script type="text/javascript">
1876: // <![CDATA[
1877: function verifyCoursePick(caller) {
1878: var numbutton = getIndex(caller)
1879: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1880: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1881: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1882: if (pickedCourse != '') {
1883: if (numbutton != -1) {
1884: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1885: document.rolechoice.elements[numbutton+1].name = courseTarget
1886: document.rolechoice.submit()
1887: }
1888: }
1889: else {
1890: alert("$js_lt{'plsu'}");
1891: }
1892: }
1893: else {
1894: alert("$js_lt{'youc'}")
1895: }
1896: }
1897: function getIndex(caller) {
1898: for (var i=0;i<document.rolechoice.elements.length;i++) {
1899: if (document.rolechoice.elements[i] == caller) {
1900: return i;
1901: }
1902: }
1903: return -1;
1904: }
1905: // ]]>
1906: </script>
1907: END
1908: return $verify_script;
1909: }
1910:
1911: sub coauthorlink {
1912: my ($dcdom,$rowtype) = @_;
1913: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1914: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1915: return $coauthorform.$hiddenitems;
1916: }
1917:
1918: sub display_cc_role {
1919: my $rolekey = shift;
1920: my ($roletext,$roletext_end);
1921: my $advanced = $env{'user.adv'};
1922: my $tryagain = $env{'form.tryagain'};
1923: unless ($rolekey =~/^error\:/) {
1924: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1925: my $ccrole = $1;
1926: my $tdom = $2;
1927: my $trest = $3;
1928: my $tcourseid = $tdom.'_'.$trest;
1929: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1930: my $twhere;
1931: my $ttype;
1932: my $skipcal;
1933: my $tbg='LC_roles_is';
1934: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1935: if (%newhash) {
1936: $twhere=$newhash{'description'}.
1937: ' <span class="LC_fontsize_small">'.
1938: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1939: '</span>';
1940: $ttype = $newhash{'type'};
1941: } else {
1942: $twhere=&mt('Currently not available');
1943: $env{'course.'.$tcourseid.'.description'}=$twhere;
1944: $skipcal = 1;
1945: }
1946: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
1947: $twhere.="<br />".&mt('Domain').":".$tdom;
1948: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'','','',$skipcal);
1949: }
1950: }
1951: return ($roletext,$roletext_end);
1952: }
1953:
1954: sub adhoc_roles_row {
1955: my ($dcdom,$rowtype) = @_;
1956: my $output = &Apache::loncommon::continue_data_table_row()
1957: .' <td colspan="5" class="LC_textsize_mobile">'
1958: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1959: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1960: .' ';
1961: my $selectcclink = &courselink($dcdom,$rowtype);
1962: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
1963: my $carole = &Apache::lonnet::plaintext('ca');
1964: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1965: $output.=$ccrole.': '.$selectcclink
1966: .' | '.$carole.': '.$selectcalink.'</td>'
1967: .&Apache::loncommon::end_data_table_row();
1968: return $output;
1969: }
1970:
1971: sub recent_filename {
1972: my $area=shift;
1973: return 'nohist_recent_'.&escape($area);
1974: }
1975:
1976: sub courseloadpage {
1977: my ($courseid) = @_;
1978: my $startpage;
1979: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1980: [$courseid.':courseinit']);
1981: my ($tmp) = %entry_settings;
1982: unless ($tmp =~ /^error: 2 /) {
1983: $startpage = $entry_settings{$courseid.':courseinit'};
1984: }
1985: if ($startpage eq '') {
1986: if (exists($env{'environment.course_init_display'})) {
1987: $startpage = $env{'environment.course_init_display'};
1988: }
1989: }
1990: return $startpage;
1991: }
1992:
1993: sub update_session_roles {
1994: my $then=$env{'user.login.time'};
1995: my $refresh=$env{'user.refresh.time'};
1996: if (!$refresh) {
1997: $refresh = $then;
1998: }
1999: my $update = $env{'user.update.time'};
2000: if (!$update) {
2001: $update = $then;
2002: }
2003: my $now = time;
2004: my %roleshash =
2005: &Apache::lonnet::get_my_roles('','','userroles',
2006: ['active','future','previous'],
2007: undef,undef,1);
2008: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2009: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2010: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2011: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2012: @rolecodes);
2013: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2014: my %courseroles;
2015: foreach my $item (keys(%roleshash)) {
2016: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2017: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2018: my ($section,$group,@group_privs);
2019: if ($role =~ m{^gr/(\w*)$}) {
2020: $role = 'gr';
2021: my $priv = $1;
2022: next if ($tstart eq '-1');
2023: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2024: if ($priv ne '') {
2025: push(@group_privs,$priv);
2026: }
2027: }
2028: if ($remainder =~ /:/) {
2029: (my $additional_privs,$group) =
2030: ($remainder =~ /^([\w:]+):([^:]+)$/);
2031: if ($additional_privs ne '') {
2032: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2033: push(@group_privs,split(/:/,$additional_privs));
2034: @group_privs = sort(@group_privs);
2035: }
2036: }
2037: } else {
2038: $group = $remainder;
2039: }
2040: } else {
2041: $section = $remainder;
2042: }
2043: my $where = "/$udom/$uname";
2044: if ($section ne '') {
2045: $where .= "/$section";
2046: } elsif ($group ne '') {
2047: $where .= "/$group";
2048: }
2049: my $rolekey = "$role.$where";
2050: my $envkey = "user.role.$rolekey";
2051: $dbroles{$envkey} = 1;
2052: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2053: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2054: $currrole_expired = 1;
2055: }
2056: }
2057: if ($env{$envkey} eq '') {
2058: my $status_in_db =
2059: &curr_role_status($tstart,$tend,$now,$now);
2060: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2061: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2062: if ($status_in_db eq 'active') {
2063: if ($section eq '') {
2064: push(@newsec,'none');
2065: } else {
2066: push(@newsec,$section);
2067: }
2068: }
2069: } else {
2070: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2071: push(@changed_roles,$role);
2072: }
2073: if ($status_in_db ne 'previous') {
2074: if ($role eq 'gr') {
2075: $newgroup{$rolekey} = $status_in_db;
2076: if ($status_in_db eq 'active') {
2077: unless (ref($courseroles{$udom}) eq 'HASH') {
2078: %{$courseroles{$udom}} =
2079: &Apache::lonnet::get_my_roles('','','userroles',
2080: ['active'],\@possroles,
2081: [$udom],1);
2082: }
2083: &Apache::lonnet::get_groups_roles($udom,$uname,
2084: $courseroles{$udom},
2085: \@rolecodes,\%groups_roles);
2086: }
2087: } else {
2088: $newrole{$rolekey} = $status_in_db;
2089: }
2090: }
2091: }
2092: } else {
2093: my ($currstart,$currend) = split(/\./,$env{$envkey});
2094: if ($role eq 'gr') {
2095: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2096: $hasgroups = 1;
2097: }
2098: }
2099: if (($currstart ne $tstart) || ($currend ne $tend)) {
2100: my $status_in_env =
2101: &curr_role_status($currstart,$currend,$refresh,$update);
2102: my $status_in_db =
2103: &curr_role_status($tstart,$tend,$now,$now);
2104: if ($status_in_env ne $status_in_db) {
2105: if ($status_in_env eq 'active') {
2106: if ($role eq 'st') {
2107: if ($env{'request.role'} eq $rolekey) {
2108: my $switchsection;
2109: unless (ref($courseroles{$udom}) eq 'HASH') {
2110: %{$courseroles{$udom}} =
2111: &Apache::lonnet::get_my_roles('','','userroles',
2112: ['active'],
2113: \@possroles,[$udom],1);
2114: }
2115: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2116: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2117: $switchsection = 1;
2118: last;
2119: }
2120: }
2121: if ($switchsection) {
2122: if ($section eq '') {
2123: $oldsec = 'none';
2124: } else {
2125: $oldsec = $section;
2126: }
2127: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2128: } else {
2129: $currrole_expired = 1;
2130: next;
2131: }
2132: }
2133: }
2134: unless ($rolekey eq $env{'request.role'}) {
2135: if ($role eq 'gr') {
2136: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2137: } else {
2138: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2139: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2140: }
2141: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2142: }
2143: } elsif ($status_in_db eq 'active') {
2144: if (($role eq 'st') &&
2145: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2146: if ($section eq '') {
2147: push(@newsec,'none');
2148: } else {
2149: push(@newsec,$section);
2150: }
2151: } elsif ($role eq 'gr') {
2152: unless (ref($courseroles{$udom}) eq 'HASH') {
2153: %{$courseroles{$udom}} =
2154: &Apache::lonnet::get_my_roles('','','userroles',
2155: ['active'],
2156: \@possroles,[$udom],1);
2157: }
2158: &Apache::lonnet::get_groups_roles($udom,$uname,
2159: $courseroles{$udom},
2160: \@rolecodes,\%groups_roles);
2161: }
2162: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2163: }
2164: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2165: push(@changed_roles,$role);
2166: }
2167: if ($role eq 'gr') {
2168: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2169: } else {
2170: $rolechange{$rolekey} = $status_in_db;
2171: }
2172: }
2173: } else {
2174: if ($role eq 'gr') {
2175: unless ($checkedgroup{$where}) {
2176: my $status_in_db =
2177: &curr_role_status($tstart,$tend,$refresh,$now);
2178: if ($tstart eq '-1') {
2179: $status_in_db = 'deleted';
2180: }
2181: unless (ref($courseroles{$udom}) eq 'HASH') {
2182: %{$courseroles{$udom}} =
2183: &Apache::lonnet::get_my_roles('','','userroles',
2184: ['active'],
2185: \@possroles,[$udom],1);
2186: }
2187: if (ref($courseroles{$udom}) eq 'HASH') {
2188: foreach my $item (keys(%{$courseroles{$udom}})) {
2189: next unless ($item =~ /^\Q$uname\E/);
2190: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2191: my $area = '/'.$cdom.'/'.$cnum;
2192: if ($crssec ne '') {
2193: $area .= '/'.$crssec;
2194: }
2195: my $crsrolekey = $crsrole.'.'.$area;
2196: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2197: $currprivs =~ s/^://;
2198: $currprivs =~ s/\&F$//;
2199: my @curr_grp_privs = split(/\&F:/,$currprivs);
2200: @curr_grp_privs = sort(@curr_grp_privs);
2201: my @diffs;
2202: if (@group_privs > 0 || @curr_grp_privs > 0) {
2203: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2204: }
2205: if (@diffs == 0) {
2206: last;
2207: } else {
2208: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2209: push(@rolecodes,'gr');
2210: }
2211: &gather_roleprivs(\%allroles,\%allgroups,
2212: \%userroles,$where,$role,
2213: $tstart,$tend,$status_in_db);
2214: if ($status_in_db eq 'active') {
2215: &Apache::lonnet::get_groups_roles($udom,$uname,
2216: $courseroles{$udom},
2217: \@rolecodes,\%groups_roles);
2218: }
2219: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2220: last;
2221: }
2222: }
2223: }
2224: $checkedgroup{$where} = 1;
2225: }
2226: } elsif ($role =~ /^cr/) {
2227: my $status_in_db =
2228: &curr_role_status($tstart,$tend,$refresh,$now);
2229: my ($rdummy,$rest) = split(/\//,$role,2);
2230: my %currpriv;
2231: unless (exists($crprivs{$rest})) {
2232: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2233: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2234: if (&Apache::lonnet::hostname($homsvr) ne '') {
2235: my ($rdummy,$roledef)=
2236: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2237: $rdomain,$rauthor);
2238: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2239: my $i = 0;
2240: my @scopes = ('sys','dom','crs');
2241: my @privs = split(/\_/,$roledef);
2242: foreach my $priv (@privs) {
2243: my ($blank,@prv) = split(/:/,$priv);
2244: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2245: if (@prv) {
2246: $priv = ':'.join(':',sort(@prv));
2247: }
2248: $crprivs{$rest}{$scopes[$i]} = $priv;
2249: $i++;
2250: }
2251: }
2252: }
2253: }
2254: my $status_in_env =
2255: &curr_role_status($currstart,$currend,$refresh,$update);
2256: if ($status_in_env eq 'active') {
2257: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2258: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2259: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2260: if (keys(%crprivs)) {
2261: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2262: ($crprivs{$rest}{dom} ne $currpriv{dom})
2263: ||
2264: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2265: &gather_roleprivs(\%allroles,\%allgroups,
2266: \%userroles,$where,$role,
2267: $tstart,$tend,$status_in_db);
2268: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2269: push(@changed_roles,$role);
2270: }
2271: $customprivchg{$rolekey} = $status_in_env;
2272: }
2273: }
2274: }
2275: }
2276: }
2277: }
2278: }
2279: foreach my $envkey (keys(%env)) {
2280: next unless ($envkey =~ /^user\.role\./);
2281: next if ($dbroles{$envkey});
2282: next if ($envkey eq 'user.role.'.$env{'request.role'});
2283: my ($currstart,$currend) = split(/\./,$env{$envkey});
2284: my $status_in_env =
2285: &curr_role_status($currstart,$currend,$refresh,$update);
2286: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2287: my ($role,$rest)=split(m{\./},$rolekey,2);
2288: $rest = '/'.$rest;
2289: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2290: if ($status_in_env eq 'active') {
2291: if ($role eq 'gr') {
2292: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2293: \@possroles);
2294: } else {
2295: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2296: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2297: }
2298: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2299: push(@changed_roles,$role);
2300: }
2301: $deletedroles{$rolekey} = 1;
2302: }
2303: }
2304: }
2305: if (($oldsec) && (@newsec > 0)) {
2306: if (@newsec > 1) {
2307: $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>';
2308: } else {
2309: my $newrole = $env{'request.role'};
2310: if ($newsec[0] eq 'none') {
2311: $newrole =~ s{(/[^/])$}{};
2312: } elsif ($oldsec eq 'none') {
2313: $newrole .= '/'.$newsec[0];
2314: } else {
2315: $newrole =~ s{([^/]+)$}{$newsec[0]};
2316: }
2317: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2318: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2319: my %temp=('logout_'.$env{'request.course.id'} => time);
2320: &Apache::lonnet::put('email_status',\%temp);
2321: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2322: &Apache::lonnet::appenv({"request.course.id" => '',
2323: "request.course.fn" => '',
2324: "request.course.uri" => '',
2325: "request.course.sec" => '',
2326: "request.role" => 'cm',
2327: "request.role.adv" => $env{'user.adv'},
2328: "request.role.domain" => $env{'user.domain'}});
2329: my $rolename = &Apache::loncommon::plainname($curr_role);
2330: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2331: '<input type="hidden" name="newrole" value="" />'.
2332: '<input type="hidden" name="selectrole" value="1" />'.
2333: '<span class="LC_info">'.
2334: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2335: my $button = '<input type="button" name="sectionchanged" value="'.
2336: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2337: if ($newsec[0] eq 'none') {
2338: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2339: } else {
2340: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2341: }
2342: $msg .= '</form></p>';
2343: }
2344: } elsif ($currrole_expired) {
2345: $msg .= '<p class="LC_warning">';
2346: if (&Apache::loncommon::show_course()) {
2347: $msg .= &mt('Your role in the current course has expired.');
2348: } else {
2349: $msg .= &mt('Your current role has expired.');
2350: }
2351: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2352: }
2353: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2354: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2355: $curr_author = $env{'user.author'};
2356: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2357: ($env{'request.role'} =~/^aa/)) {
2358: $curr_role_author=1;
2359: }
2360: $curr_is_adv = $env{'user.adv'};
2361: $curr_role_adv = $env{'request.role.adv'};
2362: if (keys(%userroles) > 0) {
2363: foreach my $role (@changed_roles) {
2364: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2365: push(@rolecodes,$role);
2366: }
2367: }
2368: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2369: push(@rolecodes,'cm');
2370: }
2371: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2372: }
2373: my %newenv;
2374: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2375: unless ($curr_is_adv) {
2376: $newenv{'user.adv'} = 1;
2377: }
2378: } elsif ($curr_is_adv && !$curr_role_adv) {
2379: &Apache::lonnet::delenv('user.adv');
2380: }
2381: my %authorroleshash =
2382: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2383: if (keys(%authorroleshash)) {
2384: unless ($curr_author) {
2385: $newenv{'user.author'} = 1;
2386: }
2387: } elsif ($curr_author && !$curr_role_author) {
2388: &Apache::lonnet::delenv('user.author');
2389: }
2390: if ($env{'request.course.id'}) {
2391: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2392: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2393: my (@activecrsgroups,$crsgroupschanged);
2394: if ($env{'request.course.groups'}) {
2395: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2396: foreach my $item (keys(%deletedroles)) {
2397: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2398: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2399: $crsgroupschanged = 1;
2400: last;
2401: }
2402: }
2403: }
2404: }
2405: unless ($crsgroupschanged) {
2406: foreach my $item (keys(%newgroup)) {
2407: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2408: if ($newgroup{$item} eq 'active') {
2409: $crsgroupschanged = 1;
2410: last;
2411: }
2412: }
2413: }
2414: }
2415: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2416: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2417: ($crsgroupschanged)) {
2418: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2419: ['active'],['gr'],[$cdom],1);
2420: my @activegroups;
2421: foreach my $item (keys(%grouproles)) {
2422: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2423: my $group;
2424: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2425: if ($remainder =~ /:/) {
2426: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2427: } else {
2428: $group = $remainder;
2429: }
2430: if ($group ne '') {
2431: push(@activegroups,$group);
2432: }
2433: }
2434: $newenv{'request.course.groups'} = join(':',@activegroups);
2435: }
2436: }
2437: if (keys(%newenv)) {
2438: &Apache::lonnet::appenv(\%newenv);
2439: }
2440: if (!@changed_roles || !(keys(%changed_groups))) {
2441: my ($rolesmsg,$groupsmsg);
2442: if (!@changed_roles) {
2443: if (&Apache::loncommon::show_course()) {
2444: $rolesmsg = &mt('No new courses or communities');
2445: } else {
2446: $rolesmsg = &mt('No role changes');
2447: }
2448: }
2449: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2450: $groupsmsg = &mt('No changes in course/community groups');
2451: }
2452: if (!@changed_roles && !(keys(%changed_groups))) {
2453: if (($msg ne '') || ($groupsmsg ne '')) {
2454: $msg .= '<ul>';
2455: if ($rolesmsg) {
2456: $msg .= '<li>'.$rolesmsg.'</li>';
2457: }
2458: if ($groupsmsg) {
2459: $msg .= '<li>'.$groupsmsg.'</li>';
2460: }
2461: $msg .= '</ul>';
2462: } else {
2463: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2464: }
2465: return $msg;
2466: }
2467: }
2468: my $changemsg;
2469: if (@changed_roles > 0) {
2470: if (keys(%newgroup) > 0) {
2471: my $groupmsg;
2472: my (%curr_groups,%groupdescs,$currcrs);
2473: foreach my $item (sort(keys(%newgroup))) {
2474: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2475: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2476: my ($cdom,$cnum) = split(/\//,$1);
2477: my $group = $2;
2478: if ($currcrs ne $cdom.'_'.$cnum) {
2479: if ($currcrs) {
2480: $groupmsg .= '</ul><li>';
2481: }
2482: $groupmsg .= '<li><b>'.
2483: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2484: $currcrs = $cdom.'_'.$cnum;
2485: }
2486: my $groupdesc;
2487: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2488: %{$curr_groups{$cdom.'_'.$cnum}} =
2489: &Apache::longroup::coursegroups($cdom,$cnum);
2490: }
2491: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2492: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2493:
2494: my %groupinfo =
2495: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2496: $groupdescs{$cdom.'_'.$cnum}{$group} =
2497: &unescape($groupinfo{'description'});
2498: }
2499: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2500: if ($groupdesc) {
2501: $groupmsg .= '<li>'.
2502: &mt('[_1] with status: [_2].',
2503: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2504: }
2505: }
2506: }
2507: if ($groupmsg) {
2508: $groupmsg .= '</ul></li>';
2509: }
2510: }
2511: if ($groupmsg) {
2512: $changemsg .= '<li>'.
2513: &mt('Courses with new groups').'</li>'.
2514: '<ul>'.$groupmsg.'</ul></li>';
2515: }
2516: }
2517: if (keys(%newrole) > 0) {
2518: my $newmsg;
2519: foreach my $item (sort(keys(%newrole))) {
2520: my $desc = &role_desc($item,$update,$refresh,$now);
2521: if ($desc) {
2522: $newmsg .= '<li>'.
2523: &mt('[_1] with status: [_2].',
2524: $desc,&mt($newrole{$item})).'</li>';
2525: }
2526: }
2527: if ($newmsg) {
2528: $changemsg .= '<li>'.&mt('New roles').
2529: '<ul>'.$newmsg.'</ul>'.
2530: '</li>';
2531: }
2532: }
2533: if (keys(%customprivchg) > 0) {
2534: my $privmsg;
2535: foreach my $item (sort(keys(%customprivchg))) {
2536: my $desc = &role_desc($item,$update,$refresh,$now);
2537: if ($desc) {
2538: $privmsg .= '<li>'.$desc.'</li>';
2539: }
2540: }
2541: if ($privmsg) {
2542: $changemsg .= '<li>'.
2543: &mt('Custom roles with privilege changes').
2544: '<ul>'.$privmsg.'</ul>'.
2545: '</li>';
2546: }
2547: }
2548: if (keys(%rolechange) > 0) {
2549: my $rolemsg;
2550: foreach my $item (sort(keys(%rolechange))) {
2551: my $desc = &role_desc($item,$update,$refresh,$now);
2552: if ($desc) {
2553: $rolemsg .= '<li>'.
2554: &mt('[_1] status now: [_2].',$desc,
2555: $rolechange{$item}).'</li>';
2556: }
2557: }
2558: if ($rolemsg) {
2559: $changemsg .= '<li>'.
2560: &mt('Existing roles with status changes').'</li>'.
2561: '<ul>'.$rolemsg.'</ul>'.
2562: '</li>';
2563: }
2564: }
2565: if (keys(%deletedroles) > 0) {
2566: my $delmsg;
2567: foreach my $item (sort(keys(%deletedroles))) {
2568: my $desc = &role_desc($item,$update,$refresh,$now);
2569: if ($desc) {
2570: $delmsg .= '<li>'.$desc.'</li>';
2571: }
2572: }
2573: if ($delmsg) {
2574: $changemsg .= '<li>'.
2575: &mt('Existing roles now expired').'</li>'.
2576: '<ul>'.$delmsg.'</ul>'.
2577: '</li>';
2578: }
2579: }
2580: }
2581: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2582: my $groupchgmsg;
2583: foreach my $key (sort(keys(%changed_groups))) {
2584: my $crs = 'gr/'.$key;
2585: $crs =~ s/_/\//;
2586: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2587: if (ref($changed_groups{$key}) eq 'HASH') {
2588: my @showgroups;
2589: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2590: if ($changed_groups{$key}{$group} eq 'active') {
2591: push(@showgroups,$group);
2592: }
2593: }
2594: if (@showgroups > 0) {
2595: $groupchgmsg .= '<li>'.
2596: &mt('Course: [_1], groups: [_2].',$key,
2597: join(', ',@showgroups)).
2598: '</li>';
2599: }
2600: }
2601: }
2602: }
2603: if (keys(%groupchange) > 0) {
2604: $groupchgmsg .= '<li>'.
2605: &mt('Existing course/community groups with status changes').'</li>'.
2606: '<ul>';
2607: foreach my $crs (sort(keys(%groupchange))) {
2608: my $cid = $crs;
2609: $cid=~s{^/}{};
2610: $cid=~s{/}{_};
2611: my $crsdesc = $env{'course.'.$cid.'.description'};
2612: my $cdom = $env{'course.'.$cid.'.domain'};
2613: my $cnum = $env{'course.'.$cid.'.num'};
2614: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2615: my %groupdesc;
2616: if (ref($groupchange{$crs}) eq 'HASH') {
2617: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2618: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2619: unless ($groupdesc{$group}) {
2620: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2621: $groupdesc{$group} = &unescape($groupinfo{'description'});
2622: }
2623: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2624: }
2625: $groupchgmsg .= '</ul></li>';
2626: }
2627: }
2628: $groupchgmsg .= '</ul></li>';
2629: }
2630: if ($groupchgmsg) {
2631: $changemsg .= '<li>'.
2632: &mt('Courses with changes in groups').'</li>'.
2633: '<ul>'.$groupchgmsg.'</ul></li>';
2634: }
2635: }
2636: if ($changemsg) {
2637: $msg .= '<ul>'.$changemsg.'</ul>';
2638: } else {
2639: if (&Apache::loncommon::show_course()) {
2640: $msg = &mt('No new courses or communities');
2641: } else {
2642: $msg = &mt('No role changes');
2643: }
2644: }
2645: return $msg;
2646: }
2647:
2648: sub role_desc {
2649: my ($item,$update,$refresh,$now) = @_;
2650: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2651: $trole,$tremark);
2652: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2653: $now,\$role,\$where,\$trolecode,
2654: \$tstatus,\$tstart,\$tend);
2655: return unless ($role);
2656: if ($role =~ /^cr\//) {
2657: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2658: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2659: }
2660: $trole=Apache::lonnet::plaintext($role);
2661: my ($tdom,$trest,$tsection)=
2662: split(/\//,Apache::lonnet::declutter($where));
2663: if (($role eq 'ca') || ($role eq 'aa')) {
2664: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2665: $home = &Apache::lonnet::hostname($home);
2666: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2667: ': '.$tdom.' '.&mt('Server').': '.$home;
2668: } elsif ($role eq 'au') {
2669: my $home = &Apache::lonnet::homeserver
2670: ($env{'user.name'},$env{'user.domain'});
2671: $home = &Apache::lonnet::hostname($home);
2672: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2673: ': '.$home;
2674: } elsif ($trest) {
2675: my $tcourseid=$tdom.'_'.$trest;
2676: my $crstype = &Apache::loncommon::course_type($tcourseid);
2677: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2678: if ($env{'course.'.$tcourseid.'.description'}) {
2679: $twhere=$env{'course.'.$tcourseid.'.description'};
2680: } else {
2681: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2682: if (%newhash) {
2683: $twhere=$newhash{'description'};
2684: } else {
2685: $twhere=&mt('Currently not available');
2686: }
2687: }
2688: if ($tsection) {
2689: $twhere.= ' '.&mt('Section').': '.$tsection;
2690: }
2691: if ($role ne 'st') {
2692: $twhere.= ' '.&mt('Domain').': '.$tdom;
2693: }
2694: } elsif ($tdom) {
2695: $twhere = &mt('Domain').': '.$tdom;
2696: }
2697: my $output;
2698: if ($trole) {
2699: $output = $trole;
2700: if ($twhere) {
2701: $output .= " -- $twhere";
2702: }
2703: if ($tremark) {
2704: $output .= '<br />'.$tremark;
2705: }
2706: }
2707: return $output;
2708: }
2709:
2710: sub curr_role_status {
2711: my ($start,$end,$refresh,$update) = @_;
2712: if (($start) && ($start<0)) { return 'deleted' };
2713: my $status = 'active';
2714: if (($end) && ($end<=$update)) {
2715: $status = 'previous';
2716: }
2717: if (($start) && ($refresh<$start)) {
2718: $status = 'future';
2719: }
2720: return $status;
2721: }
2722:
2723: sub gather_roleprivs {
2724: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2725: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2726: if (($area ne '') && ($role ne '')) {
2727: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2728: $area,$tstart,$tend);
2729: my $spec=$role.'.'.$area;
2730: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2731: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2732: if ($status eq 'active') {
2733: if ($role =~ /^cr\//) {
2734: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2735: } elsif ($role eq 'gr') {
2736: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2737: $env{'user.domain'},
2738: $env{'user.name'});
2739: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2740: (undef,my $group_privs) = split(/\//,$trole);
2741: $group_privs = &unescape($group_privs);
2742: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2743: } else {
2744: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2745: }
2746: }
2747: }
2748: return;
2749: }
2750:
2751: sub is_active_course {
2752: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2753: return unless(ref($roleshashref) eq 'HASH');
2754: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2755: my $is_active;
2756: foreach my $key (keys(%{$roleshashref})) {
2757: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2758: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2759: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2760: if ($status eq 'active') {
2761: $is_active = 1;
2762: last;
2763: }
2764: }
2765: }
2766: return $is_active;
2767: }
2768:
2769: sub get_roles_functions {
2770: my ($rolescount,$cattype) = @_;
2771: my @links;
2772: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2773: if ($env{'environment.canrequest.author'}) {
2774: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2775: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2776: }
2777: }
2778: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2779: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2780: }
2781: if (&Apache::lonmenu::check_for_rcrs()) {
2782: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2783: }
2784: if ($env{'form.state'} eq 'queued') {
2785: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2786: } else {
2787: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2788: }
2789: if ($env{'user.adv'}) {
2790: if ($env{'form.display'} eq 'showall') {
2791: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2792: } else {
2793: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2794: }
2795: }
2796: unless ($cattype eq 'none') {
2797: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2798: }
2799: my $funcs;
2800: if ($env{'browser.mobile'}) {
2801: my @functions;
2802: foreach my $link (@links) {
2803: push(@functions,[$link->[0],$link->[2]]);
2804: }
2805: my $title = 'Display options';
2806: if ($env{'user.adv'}) {
2807: $title = 'Roles options';
2808: }
2809: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2810: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2811: } else {
2812: $funcs = &Apache::lonhtmlcommon::start_funclist();
2813: foreach my $link (@links) {
2814: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2815: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2816: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2817: $link->[2].'</a>');
2818: }
2819: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2820: $funcs = &Apache::loncommon::head_subbox($funcs);
2821: }
2822: return $funcs;
2823: }
2824:
2825: sub get_queued {
2826: my ($output,%reqcrs);
2827: my ($types,$typenames) = &Apache::loncommon::course_types();
2828: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2829: $env{'user.name'},'^status:');
2830: foreach my $key (keys(%statusinfo)) {
2831: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2832: (undef,my($cdom,$cnum)) = split(/:/,$key);
2833: my $requestkey = $cdom.'_'.$cnum;
2834: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2835: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2836: $env{'user.domain'},$env{'user.name'});
2837: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2838: my $reqtime = $history{'reqtime'};
2839: my $lastupdate = $history{'timestamp'};
2840: my $showtype = $history{'crstype'};
2841: if (defined($typenames->{$history{'crstype'}})) {
2842: $showtype = $typenames->{$history{'crstype'}};
2843: }
2844: my $description;
2845: if (ref($history{'details'}) eq 'HASH') {
2846: $description = $history{details}{'cdescr'};
2847: }
2848: @{$reqcrs{$reqtime}} = ($description,$showtype);
2849: }
2850: }
2851: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2852: if (@sortedtimes > 0) {
2853: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2854: &Apache::loncommon::start_data_table().
2855: &Apache::loncommon::start_data_table_header_row().
2856: '<th>'.&mt('Date requested').'</th>'.
2857: '<th>'.&mt('Course title').'</th>'.
2858: '<th>'.&mt('Course type').'</th>';
2859: &Apache::loncommon::end_data_table_header_row();
2860: foreach my $reqtime (@sortedtimes) {
2861: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2862: $output .= &Apache::loncommon::start_data_table_row().
2863: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2864: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2865: &Apache::loncommon::end_data_table_row();
2866: }
2867: $output .= &Apache::loncommon::end_data_table().
2868: '<br /></p>';
2869: }
2870: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2871: if ($queuedselfenroll) {
2872: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2873: $queuedselfenroll.'<br /></p>';
2874: }
2875: if ($env{'environment.canrequest.author'}) {
2876: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2877: my $requestauthor;
2878: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2879: if (($status eq 'approval') || ($status eq 'approved')) {
2880: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2881: if ($status eq 'approval') {
2882: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2883: &Apache::lonlocal::locallocaltime($timestamp));
2884: } elsif ($status eq 'approved') {
2885: my %roleshash =
2886: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2887: ['active'],['au'],[$env{'user.domain'}]);
2888: if (keys(%roleshash)) {
2889: $output .= '<span class="LC_info">'.
2890: &mt('Your request for an author role has been approved.').'<br />'.
2891: &mt('Use the "Check for changes" link to update your list of roles.').
2892: '</span>';
2893: }
2894: }
2895: $output .= '</p>';
2896: }
2897: }
2898: }
2899: unless ($output) {
2900: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2901: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2902: $output = &mt('No requests for courses, communities or authoring currently queued');
2903: } else {
2904: $output = &mt('No enrollment requests currently queued awaiting approval');
2905: }
2906: }
2907: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2908: $output.'</fieldset></div><br clear="all" />';
2909: }
2910:
2911: 1;
2912: __END__
2913:
2914: =head1 NAME
2915:
2916: Apache::lonroles - User Roles Screen
2917:
2918: =head1 SYNOPSIS
2919:
2920: Invoked by /etc/httpd/conf/srm.conf:
2921:
2922: <Location /adm/roles>
2923: PerlAccessHandler Apache::lonacc
2924: SetHandler perl-script
2925: PerlHandler Apache::lonroles
2926: ErrorDocument 403 /adm/login
2927: ErrorDocument 500 /adm/errorhandler
2928: </Location>
2929:
2930: =head1 OVERVIEW
2931:
2932: =head2 Choosing Roles
2933:
2934: C<lonroles> is a handler that allows a user to switch roles in
2935: mid-session. LON-CAPA attempts to work with "No Role Specified", the
2936: default role that a user has before selecting a role, as widely as
2937: possible, but certain handlers for example need specification which
2938: course they should act on, etc. Both in this scenario, and when the
2939: handler determines via C<lonnet>'s C<&allowed> function that a certain
2940: action is not allowed, C<lonroles> is used as error handler. This
2941: allows the user to select another role which may have permission to do
2942: what they were trying to do.
2943:
2944: =begin latex
2945:
2946: \begin{figure}
2947: \begin{center}
2948: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
2949: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
2950: \end{center}
2951: \end{figure}
2952:
2953: =end latex
2954:
2955: =head2 Role Initialization
2956:
2957: 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.
2958:
2959: =head1 INTRODUCTION
2960:
2961: This module enables a user to select what role he wishes to
2962: operate under (instructor, student, teaching assistant, course
2963: coordinator, etc). These roles are pre-established by the actions
2964: of upper-level users.
2965:
2966: This is part of the LearningOnline Network with CAPA project
2967: described at http://www.lon-capa.org.
2968:
2969: =head1 HANDLER SUBROUTINE
2970:
2971: This routine is called by Apache and mod_perl.
2972:
2973: =over 4
2974:
2975: =item *
2976:
2977: Roles Initialization (yes/no)
2978:
2979: =item *
2980:
2981: Get Error Message from Environment
2982:
2983: =item *
2984:
2985: Who is this?
2986:
2987: =item *
2988:
2989: Generate Page Output
2990:
2991: =item *
2992:
2993: Choice or no choice
2994:
2995: =item *
2996:
2997: Table
2998:
2999: =item *
3000:
3001: Privileges
3002:
3003: =back
3004:
3005: =cut
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