1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.269.2.28 2016/10/27 22:53:48 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 GDBM_File;
144: use LONCAPA qw(:DEFAULT :match);
145: use HTML::Entities;
146:
147:
148: sub redirect_user {
149: my ($r,$title,$url,$msg) = @_;
150: $msg = $title if (! defined($msg));
151: &Apache::loncommon::content_type($r,'text/html');
152: &Apache::loncommon::no_cache($r);
153: $r->send_http_header;
154: my $swinfo=&Apache::lonmenu::rawconfig();
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: <script type="text/javascript">
170: // <![CDATA[
171: $swinfo
172: // ]]>
173: </script>
174: <p>$msg</p>
175: $end_page
176: ENDREDIR
177: return;
178: }
179:
180: sub error_page {
181: my ($r,$error,$dest)=@_;
182: &Apache::loncommon::content_type($r,'text/html');
183: &Apache::loncommon::no_cache($r);
184: $r->send_http_header;
185: return OK if $r->header_only;
186: # Breadcrumbs
187: my $brcrum = [{'href' => $dest,
188: 'text' => 'Problems during Course Initialization'},];
189: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
190: undef,
191: {'bread_crumbs' => $brcrum,})
192: );
193: $r->print(
194: '<script type="text/javascript">'.
195: '// <![CDATA['.
196: &Apache::lonmenu::rawconfig().
197: '// ]]>'.
198: '</script>'.
199: '<p class="LC_error">'.&mt('The following problems occurred:').
200: '<br />'.
201: $error.
202: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
203: );
204: $r->print(&Apache::loncommon::end_page());
205: }
206:
207: sub handler {
208:
209: my $r = shift;
210:
211: # Check for critical messages and redirect if present.
212: my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
213: if ($redirect) {
214: &Apache::loncommon::content_type($r,'text/html');
215: $r->header_out(Location => $url);
216: return REDIRECT;
217: }
218:
219: my $now=time;
220: my $then=$env{'user.login.time'};
221: my $refresh=$env{'user.refresh.time'};
222: my $update=$env{'user.update.time'};
223: if (!$refresh) {
224: $refresh = $then;
225: }
226: if (!$update) {
227: $update = $then;
228: }
229:
230: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
231:
232: # -------------------------------------------------- Check if setting hot list
233: my $hotlist;
234: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
235: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
236: }
237:
238: # -------------------------------------------------------- Check for new roles
239: my $updateresult;
240: if ($env{'form.state'} eq 'doupdate') {
241: my $show_course=&Apache::loncommon::show_course();
242: my $checkingtxt;
243: if ($show_course) {
244: $checkingtxt = &mt('Checking for new courses ...');
245: } else {
246: $checkingtxt = &mt('Checking for new roles ...');
247: }
248: $updateresult = $checkingtxt;
249: $updateresult .= &update_session_roles();
250: &Apache::lonnet::appenv({'user.update.time' => $now});
251: $update = $now;
252: &Apache::loncoursequeueadmin::reqauthor_check();
253: }
254:
255: # -------------------------------------------------- Check for author requests
256: my $reqauthor;
257: if ($env{'form.state'} eq 'requestauthor') {
258: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
259: }
260:
261: my $envkey;
262: my %dcroles = ();
263: my %dhroles = ();
264: my ($numdc,$numdh,$numadhoc) = &check_for_adhoc(\%dcroles,\%dhroles,$update,$then);
265: my $loncaparev = $r->dir_config('lonVersion');
266:
267: # ================================================================== Roles Init
268: if ($env{'form.selectrole'}) {
269:
270: my $locknum=&Apache::lonnet::get_locks();
271: if ($locknum) { return 409; }
272:
273: my $custom_adhoc;
274: if ($env{'form.newrole'}) {
275: $env{'form.'.$env{'form.newrole'}}=1;
276: # Check if this is a Domain Helpdesk role trying to enter a course
277: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
278: if ($dhroles{$1}) {
279: $custom_adhoc = 1;
280: }
281: }
282: }
283: if ($env{'request.course.id'}) {
284: # Check if user is CC trying to select a course role
285: if ($env{'form.switchrole'}) {
286: my $switch_is_active;
287: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
288: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
289: if (!$end || $end > $now) {
290: if (!$start || $start < $update) {
291: $switch_is_active = 1;
292: }
293: }
294: }
295: unless ($switch_is_active) {
296: &adhoc_course_role($refresh,$update,$then);
297: }
298: }
299: my %temp=('logout_'.$env{'request.course.id'} => time);
300: &Apache::lonnet::put('email_status',\%temp);
301: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
302: }
303: &Apache::lonnet::appenv({"request.course.id" => '',
304: "request.course.fn" => '',
305: "request.course.uri" => '',
306: "request.course.sec" => '',
307: "request.course.tied" => '',
308: "request.course.timechecked" => '',
309: "request.role" => 'cm',
310: "request.role.adv" => $env{'user.adv'},
311: "request.role.domain" => $env{'user.domain'}});
312: # Check if Domain Helpdesk role trying to enter a course needs privs to be created
313: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)$}) {
314: my $cdom = $1;
315: my $rolename = $2;
316: my $cnum = $3;
317: if ($custom_adhoc) {
318: my %adhocroles = &Apache::lonnet::userenvironment($env{'user.domain'},$env{'user.name'},
319: 'adhocroles.'.$cdom);
320: if (keys(%adhocroles)) {
321: my @adhoc = split(',',$adhocroles{'adhocroles.'.$cdom});
322: if (grep(/^\Q$rolename\E$/,@adhoc)) {
323: if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
324: "cr/$cdom/$cdom".'-domainconfig/'.$rolename)) {
325: &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time});
326: }
327: }
328: }
329: }
330: } elsif (($numdc > 0) || ($numdh > 0)) {
331: # Check if user is a DC trying to enter a course or author space and needs privs to be created
332: # Check if user is a DH trying to enter a course and needs privs to be created
333: foreach my $envkey (keys(%env)) {
334: if ($numdc) {
335: # Is this an ad-hoc Coordinator role?
336: if (my ($ccrole,$domain,$coursenum) =
337: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
338: if ($dcroles{$domain}) {
339: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
340: $update,$refresh,$now,$ccrole)) {
341: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
342: }
343: }
344: last;
345: }
346: # Is this an ad-hoc CA-role?
347: if (my ($domain,$user) =
348: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
349: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
350: delete($env{$envkey});
351: $env{'form.au./'.$domain.'/'} = 1;
352: my ($server_status,$home) = &check_author_homeserver($user,$domain);
353: if ($server_status eq 'switchserver') {
354: my $trolecode = 'au./'.$domain.'/';
355: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
356: $r->internal_redirect($switchserver);
357: return OK;
358: }
359: last;
360: }
361: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
362: if (((($castart) && ($castart < $now)) || !$castart) &&
363: ((!$caend) || (($caend) && ($caend > $now)))) {
364: my ($server_status,$home) = &check_author_homeserver($user,$domain);
365: if ($server_status eq 'switchserver') {
366: my $trolecode = 'ca./'.$domain.'/'.$user;
367: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
368: $r->internal_redirect($switchserver);
369: return OK;
370: }
371: last;
372: }
373: }
374: # Check if author blocked ca-access
375: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
376: if ($blocked{'domcoord.author'} eq 'blocked') {
377: delete($env{$envkey});
378: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
379: last;
380: }
381: if ($dcroles{$domain}) {
382: my ($server_status,$home) = &check_author_homeserver($user,$domain);
383: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
384: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
385: $refresh,$now,'ca');
386: if ($server_status eq 'switchserver') {
387: my $trolecode = 'ca./'.$domain.'/'.$user;
388: my $switchserver = '/adm/switchserver?'
389: .'otherserver='.$home.'&role='.$trolecode;
390: $r->internal_redirect($switchserver);
391: return OK;
392: }
393: } else {
394: delete($env{$envkey});
395: }
396: } else {
397: delete($env{$envkey});
398: }
399: last;
400: }
401: }
402: if ($numdh) {
403: # Is this an ad hoc custom role in a course/community?
404: if (my ($domain,$rolename,$coursenum) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)$})) {
405: if ($dhroles{$domain}) {
406: my @adhoc;
407: if ($env{'environment.adhocroles.'.$domain}) {
408: @adhoc = split(',',$env{'environment.adhocroles.'.$domain});
409: } else {
410: my %adhocroles = &Apache::lonnet::userenvironment($env{'user.domain'},$env{'user.name'},
411: 'adhocroles.'.$domain);
412: if (keys(%adhocroles)) {
413: @adhoc = split(',',$adhocroles{'adhocroles.'.$domain});
414: }
415: }
416: if ((@adhoc > 0) && ($rolename ne '')) {
417: if (grep(/^\Q$rolename\E$/,@adhoc)) {
418: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now,
419: "cr/$domain/$domain".'-domainconfig/'.$rolename)) {
420: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain".
421: '-domainconfig/'."$rolename.adhoc" => time});
422: }
423: } else {
424: delete($env{$envkey});
425: }
426: } else {
427: delete($env{$envkey});
428: }
429: } else {
430: delete($env{$envkey});
431: }
432: last;
433: }
434: }
435: }
436: }
437:
438: foreach $envkey (keys(%env)) {
439: next if ($envkey!~/^user\.role\./);
440: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
441: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
442: \$trolecode,\$tstatus,\$tstart,\$tend);
443: if ($env{'form.'.$trolecode}) {
444: if ($tstatus eq 'is') {
445: $where=~s/^\///;
446: my ($cdom,$cnum,$csec)=split(/\//,$where);
447: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
448: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
449: my @ids = &Apache::lonnet::current_machine_ids();
450: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
451: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
452: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
453: my ($switchserver,$switchwarning) =
454: &Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
455: $curr_reqd_hash{'internal.releaserequired'});
456: if ($switchwarning ne '' || $switchserver ne '') {
457: &Apache::loncommon::content_type($r,'text/html');
458: &Apache::loncommon::no_cache($r);
459: $r->send_http_header;
460: $r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
461: return OK;
462: }
463: }
464: }
465: }
466: # check for course groups
467: my %coursegroups = &Apache::lonnet::get_active_groups(
468: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
469: my $cgrps = join(':',keys(%coursegroups));
470:
471: # store role if recent_role list being kept
472: if ($env{'environment.recentroles'}) {
473: my %frozen_roles =
474: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
475: &Apache::lonhtmlcommon::store_recent('roles',
476: $trolecode,' ',$frozen_roles{$trolecode});
477: }
478:
479:
480: # check for keyed access
481: if (($role eq 'st') &&
482: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
483: # who is key authority?
484: my $authdom=$cdom;
485: my $authnum=$cnum;
486: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
487: ($authnum,$authdom)=
488: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
489: }
490: # check with key authority
491: unless (&Apache::lonnet::validate_access_key(
492: $env{'environment.key.'.$cdom.'_'.$cnum},
493: $authdom,$authnum)) {
494: # there is no valid key
495: if ($env{'form.newkey'}) {
496: # student attempts to register a new key
497: &Apache::loncommon::content_type($r,'text/html');
498: &Apache::loncommon::no_cache($r);
499: $r->send_http_header;
500: my $swinfo=&Apache::lonmenu::rawconfig();
501: my $start_page=&Apache::loncommon::start_page
502: ('Verifying Access Key to Unlock this Course');
503: my $end_page=&Apache::loncommon::end_page();
504: my $buttontext=&mt('Enter Course');
505: my $message=&mt('Successfully registered key');
506: my $assignresult=
507: &Apache::lonnet::assign_access_key(
508: $env{'form.newkey'},
509: $authdom,$authnum,
510: $cdom,$cnum,
511: $env{'user.domain'},
512: $env{'user.name'},
513: &mt('Assigned from [_1] at [_2] for [_3]'
514: ,$ENV{'REMOTE_ADDR'}
515: ,&Apache::lonlocal::locallocaltime()
516: ,$trolecode)
517: );
518: unless ($assignresult eq 'ok') {
519: $assignresult=~s/^error\:\s*//;
520: $message=&mt($assignresult).
521: '<br /><a href="/adm/logout">'.
522: &mt('Logout').'</a>';
523: $buttontext=&mt('Re-Enter Key');
524: }
525: $r->print(<<ENDENTEREDKEY);
526: $start_page
527: <script type="text/javascript">
528: // <![CDATA[
529: $swinfo
530: // ]]>
531: </script>
532: <form action="" method="post">
533: <input type="hidden" name="selectrole" value="1" />
534: <input type="hidden" name="$trolecode" value="1" />
535: <span class="LC_fontsize_large">$message</span><br />
536: <input type="submit" value="$buttontext" />
537: </form>
538: $end_page
539: ENDENTEREDKEY
540: return OK;
541: } else {
542: # print form to enter a new key
543: &Apache::loncommon::content_type($r,'text/html');
544: &Apache::loncommon::no_cache($r);
545: $r->send_http_header;
546: my $swinfo=&Apache::lonmenu::rawconfig();
547: my $start_page=&Apache::loncommon::start_page
548: ('Enter Access Key to Unlock this Course');
549: my $end_page=&Apache::loncommon::end_page();
550: $r->print(<<ENDENTERKEY);
551: $start_page
552: <script type="text/javascript">
553: // <![CDATA[
554: $swinfo
555: // ]]>
556: </script>
557: <form action="" method="post">
558: <input type="hidden" name="selectrole" value="1" />
559: <input type="hidden" name="$trolecode" value="1" />
560: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
561: <input type="submit" value="Enter key" />
562: </form>
563: $end_page
564: ENDENTERKEY
565: return OK;
566: }
567: }
568: }
569: &Apache::lonnet::log($env{'user.domain'},
570: $env{'user.name'},
571: $env{'user.home'},
572: "Role ".$trolecode);
573:
574: &Apache::lonnet::appenv(
575: {'request.role' => $trolecode,
576: 'request.role.domain' => $cdom,
577: 'request.course.sec' => $csec,
578: 'request.course.groups' => $cgrps});
579: my $tadv=0;
580:
581: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
582: my $msg;
583: my ($furl,$ferr)=
584: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
585: unless ($ferr) {
586: unless (($env{'form.switchrole'}) ||
587: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
588: &Apache::lonnet::put('nohist_crslastlogin',
589: {$env{'user.name'}.':'.$env{'user.domain'}.
590: ':'.$csec.':'.$role => $now},$cdom,$cnum);
591: }
592: my ($feeds,$syllabus_time);
593: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
594: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
595: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
596: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
597: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
598: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
599: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
600: $syllabus_time = $syllabus{'uploaded.lastmodified'};
601: if ($syllabus_time) {
602: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
603: }
604: }
605: }
606: }
607: if (($env{'form.orgurl'}) &&
608: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
609: ($env{'form.orgurl'} ne '/adm/roles')) {
610: my $dest=$env{'form.orgurl'};
611: if ($env{'form.symb'}) {
612: if ($dest =~ /\?/) {
613: $dest .= '&';
614: } else {
615: $dest .= '?';
616: }
617: $dest .= 'symb='.$env{'form.symb'};
618: }
619: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
620: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
621: if (($ferr) && ($tadv)) {
622: &error_page($r,$ferr,$dest);
623: } else {
624: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
625: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
626: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
627: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
628: $cdom.'_'.$cnum);
629: }
630: }
631: $r->internal_redirect($dest);
632: }
633: return OK;
634: } else {
635: if (!$env{'request.course.id'}) {
636: &Apache::lonnet::appenv(
637: {"request.course.id" => $cdom.'_'.$cnum});
638: $furl='/adm/roles?tryagain=1';
639: $msg='<p><span class="LC_error">'
640: .&mt('Could not initialize [_1] at this time.',
641: $env{'course.'.$cdom.'_'.$cnum.'.description'})
642: .'</span></p>'
643: .'<p>'.&mt('Please try again.').'</p>'
644: .'<p>'.$ferr.'</p>';
645: }
646: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
647: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
648:
649: if (($ferr) && ($tadv)) {
650: &error_page($r,$ferr,$furl);
651: } else {
652: # Check to see if the user is a CC entering a course
653: # for the first time
654: if ((($role eq 'cc') || ($role eq 'co'))
655: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
656: $furl = "/adm/helper/course.initialization.helper";
657: # Send the user to the course they selected
658: } elsif ($env{'request.course.id'}) {
659: my ($dest,$destsymb,$checkenc);
660: $dest = $env{'form.destinationurl'};
661: $destsymb = $env{'form.destsymb'};
662: if ($dest ne '') {
663: if ($env{'form.switchrole'}) {
664: if ($destsymb ne '') {
665: if ($destsymb !~ m{^/enc/}) {
666: unless ($env{'request.role.adv'}) {
667: $checkenc = 1;
668: }
669: }
670: }
671: if ($dest =~ m{^/enc/}) {
672: if ($env{'request.role.adv'}) {
673: $dest = &Apache::lonenc::unencrypted($dest);
674: if ($destsymb eq '') {
675: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
676: $destsymb = &unescape($destsymb);
677: }
678: }
679: } else {
680: if ($destsymb eq '') {
681: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
682: $destsymb = &unescape($destsymb);
683: }
684: unless ($env{'request.role.adv'}) {
685: $checkenc = 1;
686: }
687: }
688: if (($checkenc) && ($destsymb ne '')) {
689: my ($encstate,$unencsymb,$res);
690: $unencsymb = &Apache::lonnet::symbclean($destsymb);
691: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
692: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
693: if ($encstate) {
694: if (($dest ne '') && ($dest !~ m{^/enc/})) {
695: $dest=&Apache::lonenc::encrypted($dest);
696: }
697: }
698: }
699: }
700: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
701: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
702: my $esc_symb = &escape($destsymb);
703: $dest .= '?symb='.$esc_symb;
704: }
705: }
706: &redirect_user($r, &mt('Entering [_1]',
707: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
708: $dest, $msg);
709: return OK;
710: }
711: if (&Apache::lonnet::allowed('whn',
712: $env{'request.course.id'})
713: || &Apache::lonnet::allowed('whn',
714: $env{'request.course.id'}.'/'
715: .$env{'request.course.sec'})
716: ) {
717: my $startpage = &courseloadpage($env{'request.course.id'});
718: unless ($startpage eq 'firstres') {
719: $msg = &mt('Entering [_1] ...',
720: $env{'course.'.$env{'request.course.id'}.'.description'});
721: &redirect_user($r, &mt('New in course'),
722: '/adm/whatsnew?refpage=start', $msg);
723: return OK;
724: }
725: }
726: }
727: # Are we allowed to look at the first resource?
728: my $access;
729: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
730: # If it's an external resource,
731: # strip off the symb argument and possible query
732: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
733: # Unencode $symb
734: $symb = &unescape($symb);
735: # Then check for permission
736: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
737: # For other resources just check for permission
738: } else {
739: $access = &Apache::lonnet::allowed('bre',$furl);
740: }
741: if (!$access) {
742: $furl = &Apache::lonpageflip::first_accessible_resource();
743: } elsif ($access eq 'B') {
744: $furl = '/adm/navmaps?showOnlyHomework=1';
745: }
746: $msg = &mt('Entering [_1] ...',
747: $env{'course.'.$cdom.'_'.$cnum.'.description'});
748: &redirect_user($r, &mt('Entering [_1]',
749: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
750: $furl, $msg);
751: }
752: return OK;
753: }
754: }
755: #
756: # Send the user to the construction space they selected
757: if ($role =~ /^(au|ca|aa)$/) {
758: my $redirect_url = '/priv/';
759: if ($role eq 'au') {
760: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
761: } else {
762: $redirect_url .= $where;
763: }
764: $redirect_url .= '/';
765: &redirect_user($r,&mt('Entering Authoring Space'),
766: $redirect_url);
767: return OK;
768: }
769: if ($role eq 'dc') {
770: my $redirect_url = '/adm/menu/';
771: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
772: $redirect_url);
773: return OK;
774: }
775: if ($role eq 'dh') {
776: my $redirect_url = '/adm/menu/';
777: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
778: $redirect_url);
779: return OK;
780: }
781: if ($role eq 'sc') {
782: my $redirect_url = '/adm/grades?command=scantronupload';
783: &redirect_user($r,&mt('Loading Data Upload Page'),
784: $redirect_url);
785: return OK;
786: }
787: }
788: }
789: }
790: }
791:
792:
793: # =============================================================== No Roles Init
794:
795: &Apache::loncommon::content_type($r,'text/html');
796: &Apache::loncommon::no_cache($r);
797: $r->send_http_header;
798: return OK if $r->header_only;
799:
800: my $crumbtext = 'User Roles';
801: my $pagetitle = 'My Roles';
802: my $recent = &mt('Recent Roles');
803: my $standby = &mt('Role selected. Please stand by.');
804: my $show_course=&Apache::loncommon::show_course();
805: if ($show_course) {
806: $crumbtext = 'Courses';
807: $pagetitle = 'My Courses';
808: $recent = &mt('Recent Courses');
809: $standby = &mt('Course selected. Please stand by.');
810: }
811: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
812:
813: my %roles_in_env;
814: my $showcount = &roles_from_env(\%roles_in_env,$update);
815:
816: my $swinfo=&Apache::lonmenu::rawconfig();
817: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
818: my $cattype = 'std';
819: if ($domdefs{'catauth'}) {
820: $cattype = $domdefs{'catauth'};
821: }
822: my $funcs = &get_roles_functions($showcount,$cattype);
823: my $crumbsright;
824: if ($env{'browser.mobile'}) {
825: $crumbsright = $funcs;
826: undef($funcs);
827: }
828: my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
829: bread_crumbs_component=>$crumbsright});
830: &js_escape(\$standby);
831: 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 />';
832:
833: $r->print(<<ENDHEADER);
834: $start_page
835: $funcs
836: <noscript>
837: $noscript
838: </noscript>
839: <script type="text/javascript">
840: // <![CDATA[
841: $swinfo
842: window.focus();
843:
844: active=true;
845:
846: function enterrole (thisform,rolecode,buttonname) {
847: if (active) {
848: active=false;
849: document.title='$standby';
850: window.status='$standby';
851: thisform.newrole.value=rolecode;
852: thisform.submit();
853: } else {
854: alert('$standby');
855: }
856: }
857:
858: function rolesView (caller) {
859: if ((caller == 'showall') || (caller == 'noshowall')) {
860: document.rolechoice.display.value = caller;
861: } else {
862: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
863: (caller == 'queued')) {
864: document.rolechoice.state.value = caller;
865: }
866: }
867: document.rolechoice.selectrole.value='';
868: document.rolechoice.submit();
869: }
870:
871: // ]]>
872: </script>
873: ENDHEADER
874:
875: # ------------------------------------------ Get Error Message from Environment
876:
877: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
878: if ($env{'user.error.msg'}) {
879: $r->log_reason(
880: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
881: }
882:
883: # ------------------------------------------------- Can this user re-init, etc?
884:
885: my $advanced=$env{'user.adv'};
886: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
887: my $tryagain=$env{'form.tryagain'};
888: my $reinit=$env{'user.reinit'};
889: delete $env{'user.reinit'};
890:
891: # -------------------------------------------------------- Generate Page Output
892: # --------------------------------------------------------------- Error Header?
893: if ($error) {
894: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
895: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
896: if ($priv ne '') {
897: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
898: }
899: if ($fn ne '') {
900: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
901: }
902: if ($msg ne '') {
903: $r->print(&mt('Action : ').$msg."\n");
904: }
905: $r->print("</pre><hr />");
906: my $url=$fn;
907: my $last;
908: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
909: &GDBM_READER(),0640)) {
910: $last=$hash{'last_known'};
911: untie(%hash);
912: }
913: if ($last) { $fn.='?symb='.&escape($last); }
914:
915: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
916: &Apache::lonenc::check_encrypt($fn));
917: } else {
918: if ($env{'user.error.msg'}) {
919: if ($reinit) {
920: $r->print(
921: '<h3><span class="LC_error">'.
922: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
923: } else {
924: $r->print(
925: '<h3><span class="LC_error">'.
926: &mt('You need to choose another user role or enter a specific course or community for this function.').
927: '</span></h3>');
928: }
929: }
930: }
931: if ($nochoose) {
932: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
933: &mt('This action is currently not authorized.').'</span>'.
934: &Apache::loncommon::end_page());
935: return OK;
936: } else {
937: if ($updateresult || $reqauthor || $hotlist) {
938: my $showresult = '<div>';
939: if ($updateresult) {
940: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
941: }
942: if ($reqauthor) {
943: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
944: }
945: if ($hotlist) {
946: $showresult .= $hotlist;
947: }
948: $showresult .= '</div>';
949: $r->print($showresult);
950: } elsif ($env{'form.state'} eq 'queued') {
951: $r->print(&get_queued());
952: }
953: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
954: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
955: }
956: my $display = ($env{'form.display'} =~ /^(showall)$/);
957: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
958: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
959: $r->print('<input type="hidden" name="selectrole" value="1" />');
960: $r->print('<input type="hidden" name="newrole" value="" />');
961: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
962: $r->print('<input type="hidden" name="state" value="" />');
963: }
964: $r->rflush();
965:
966: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
967: my ($countactive,$countfuture,$inrole,$possiblerole) =
968: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
969: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
970: $refresh = $now;
971: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
972: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'})) {
973: if ($countactive > 0) {
974: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
975: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
976: $r->print(
977: '<p>'
978: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
979: .' to view all [_5] LON-CAPA courses and communities.'
980: ,'<b>'
981: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
982: ,'</a>'
983: ,'</b>'
984: ,'"'.$domdesc.'"')
985: .'<br />'
986: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
987: .' you may be able to enroll if self-enrollment is permitted.'
988: ,'<b>','</b>')
989: .'</p>'
990: );
991: }
992: }
993:
994: # No active roles
995: if ($countactive==0) {
996: &requestcourse_advice($r,$cattype,$inrole);
997: $r->print('</form>');
998: if ($countfuture) {
999: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1000: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1001: $nochoose);
1002: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1003: \%roletext);
1004: my $tremark='';
1005: my $tbg;
1006: if ($env{'request.role'} eq 'cm') {
1007: $tbg="LC_roles_selected";
1008: $tremark=&mt('Currently selected.').' ';
1009: } else {
1010: $tbg="LC_roles_is";
1011: }
1012: $r->print(&Apache::loncommon::start_data_table_row()
1013: .'<td class="'.$tbg.'"> </td>'
1014: .'<td colspan="3">'
1015: .&mt('No role specified')
1016: .'</td>'
1017: .'<td>'.$tremark.' </td>'
1018: .&Apache::loncommon::end_data_table_row()
1019: );
1020:
1021: $r->print(&Apache::loncommon::end_data_table());
1022: }
1023: $r->print(&Apache::loncommon::end_page());
1024: return OK;
1025: }
1026: # ----------------------------------------------------------------------- Table
1027:
1028: if (($numdc > 0) || (($numdh > 0) && ($numadhoc > 0))) {
1029: $r->print(&coursepick_jscript());
1030: $r->print(&Apache::loncommon::coursebrowser_javascript().
1031: &Apache::loncommon::authorbrowser_javascript());
1032: }
1033:
1034: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1035: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1036: }
1037: if ($env{'form.destinationurl'}) {
1038: $r->print('<input type="hidden" name="destinationurl" value="'.
1039: $env{'form.destinationurl'}.'" />');
1040: if ($env{'form.destsymb'} ne '') {
1041: $r->print('<input type="hidden" name="destsymb" value="'.
1042: $env{'form.destsymb'}.'" />');
1043: }
1044: }
1045:
1046: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1047: if ($env{'environment.recentroles'}) {
1048: my %recent_roles =
1049: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1050: my $output='';
1051: foreach my $role (sort(keys(%recent_roles))) {
1052: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1053: $output.= &Apache::loncommon::start_data_table_row().
1054: $roletext{'user.role.'.$role}->[0].
1055: &Apache::loncommon::end_data_table_row();
1056: if ($roletext{'user.role.'.$role}->[1] ne '') {
1057: $output .= &Apache::loncommon::continue_data_table_row().
1058: $roletext{'user.role.'.$role}->[1].
1059: &Apache::loncommon::end_data_table_row();
1060: }
1061: if ($role =~ m{^dc\./($match_domain)/$}
1062: && $dcroles{$1}) {
1063: $output .= &adhoc_roles_row($1,'recent');
1064: } elsif ($role =~ m{^dh\./($match_domain)/$}
1065: && ($env{'environment.adhocroles.'.$1} ne '')) {
1066: $output .= &adhoc_customroles_row($1,'recent');
1067: }
1068: } elsif ($numdc > 0) {
1069: unless ($role =~/^error\:/) {
1070: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1071: if ($roletext) {
1072: $output.= &Apache::loncommon::start_data_table_row().
1073: $roletext.
1074: &Apache::loncommon::end_data_table_row();
1075: if ($role_text_end) {
1076: $output .= &Apache::loncommon::continue_data_table_row().
1077: $role_text_end.
1078: &Apache::loncommon::end_data_table_row();
1079: }
1080: }
1081: }
1082: }
1083: }
1084: if ($output) {
1085: $r->print(&Apache::loncommon::start_data_table_empty_row()
1086: .'<td align="center" colspan="5">'
1087: .$recent
1088: .'</td>'
1089: .&Apache::loncommon::end_data_table_empty_row()
1090: );
1091: $r->print($output);
1092: $doheaders ++;
1093: }
1094: }
1095: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1096: if ($countactive > 1) {
1097: my $tremark='';
1098: my $tbg;
1099: if ($env{'request.role'} eq 'cm') {
1100: $tbg="LC_roles_selected";
1101: $tremark=&mt('Currently selected.').' ';
1102: } else {
1103: $tbg="LC_roles_is";
1104: }
1105: $r->print(&Apache::loncommon::start_data_table_row());
1106: unless ($nochoose) {
1107: if ($env{'request.role'} ne 'cm') {
1108: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1109: &mt('Select').'" name="cm" /></td>');
1110: } else {
1111: $r->print('<td class="'.$tbg.'"> </td>');
1112: }
1113: }
1114: $r->print('<td colspan="3">'
1115: .&mt('No role specified')
1116: .'</td>'
1117: .'<td>'.$tremark.' </td>'
1118: .&Apache::loncommon::end_data_table_row()
1119: );
1120: }
1121: $r->print(&Apache::loncommon::end_data_table());
1122: unless ($nochoose) {
1123: $r->print("</form>\n");
1124: }
1125: # ------------------------------------------------------------ Privileges Info
1126: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1127: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1128: $r->print(&privileges_info());
1129: }
1130: my $announcements = &Apache::lonnet::getannounce();
1131: $r->print(
1132: '<br />'.
1133: '<h2>'.&mt('Announcements').'</h2>'.
1134: $announcements
1135: ) unless (!$announcements);
1136: if ($advanced) {
1137: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1138: $r->print('<p><small><i>'
1139: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1140: .'</i></small></p>');
1141: }
1142: $r->print(&Apache::loncommon::end_page());
1143: return OK;
1144: }
1145:
1146: sub roles_from_env {
1147: my ($roleshash,$update) = @_;
1148: my $count = 0;
1149: if (ref($roleshash) eq 'HASH') {
1150: foreach my $envkey (keys(%env)) {
1151: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1152: next if ($1 eq 'gr');
1153: $roleshash->{$envkey} = $env{$envkey};
1154: my ($start,$end) = split(/\./,$env{$envkey});
1155: unless ($end && $end<$update) {
1156: $count ++;
1157: }
1158: }
1159: }
1160: }
1161: return $count;
1162: }
1163:
1164: sub gather_roles {
1165: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1166: $timezones,$loncaparev) = @_;
1167: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1168: my $advanced = $env{'user.adv'};
1169: my $tryagain = $env{'form.tryagain'};
1170: my @ids = &Apache::lonnet::current_machine_ids();
1171: if (ref($roles_in_env) eq 'HASH') {
1172: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1173: my $button = 1;
1174: my $switchserver='';
1175: my $switchwarning;
1176: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1177: $tend,$tremark,$tstatus,$tpstart,$tpend);
1178: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1179: \$trolecode,\$tstatus,\$tstart,\$tend);
1180: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1181: $tremark='';
1182: $tpstart=' ';
1183: $tpend=' ';
1184: if ($env{'request.role'} eq $trolecode) {
1185: $tstatus='selected';
1186: }
1187: my $tbg;
1188: if (($tstatus eq 'is')
1189: || ($tstatus eq 'selected')
1190: || ($tstatus eq 'future')
1191: || ($env{'form.display'} eq 'showall')) {
1192: my $timezone = &role_timezone($where,$timezones);
1193: if ($tstart) {
1194: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1195: }
1196: if ($tend) {
1197: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1198: }
1199: if ($tstatus eq 'is') {
1200: $tbg='LC_roles_is';
1201: $possiblerole=$trolecode;
1202: $countactive++;
1203: } elsif ($tstatus eq 'future') {
1204: $tbg='LC_roles_future';
1205: $button=0;
1206: $futureroles->{$trolecode} = $tstart.':'.$tend;
1207: $countfuture ++;
1208: } elsif ($tstatus eq 'expired') {
1209: $tbg='LC_roles_expired';
1210: $button=0;
1211: } elsif ($tstatus eq 'will_not') {
1212: $tbg='LC_roles_will_not';
1213: $tremark.=&mt('Expired after logout.').' ';
1214: } elsif ($tstatus eq 'selected') {
1215: $tbg='LC_roles_selected';
1216: $inrole=1;
1217: $countactive++;
1218: $tremark.=&mt('Currently selected.').' ';
1219: }
1220: my $trole;
1221: if ($role =~ /^cr\//) {
1222: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1223: if ($tremark) { $tremark.='<br />'; }
1224: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1225: }
1226: $trole=Apache::lonnet::plaintext($role);
1227: my $ttype;
1228: my $twhere;
1229: my ($tdom,$trest,$tsection)=
1230: split(/\//,Apache::lonnet::declutter($where));
1231: # First, Co-Authorship roles
1232: if (($role eq 'ca') || ($role eq 'aa')) {
1233: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1234: my $allowed=0;
1235: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1236: if (!$allowed) {
1237: $button=0;
1238: $switchserver='otherserver='.$home.'&role='.$trolecode;
1239: }
1240: #next if ($home eq 'no_host');
1241: $home = &Apache::lonnet::hostname($home);
1242: $ttype='Authoring Space';
1243: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1244: ': '.$tdom.'<br />'.
1245: ' '.&mt('Server').': '.$home;
1246: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1247: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1248: $sortkey=$role."$trest:$tdom";
1249: } elsif ($role eq 'au') {
1250: # Authors
1251: my $home = &Apache::lonnet::homeserver
1252: ($env{'user.name'},$env{'user.domain'});
1253: my $allowed=0;
1254: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1255: if (!$allowed) {
1256: $button=0;
1257: $switchserver='otherserver='.$home.'&role='.$trolecode;
1258: }
1259: #next if ($home eq 'no_host');
1260: $home = &Apache::lonnet::hostname($home);
1261: $ttype='Authoring Space';
1262: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1263: ': '.$home;
1264: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1265: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1266: $sortkey=$role;
1267: } elsif ($trest) {
1268: my $tcourseid=$tdom.'_'.$trest;
1269: $ttype = &Apache::loncommon::course_type($tcourseid);
1270: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1271: if ($env{'course.'.$tcourseid.'.description'}) {
1272: my $home=$env{'course.'.$tcourseid.'.home'};
1273: $twhere=$env{'course.'.$tcourseid.'.description'};
1274: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1275: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1276: unless ($twhere eq &mt('Currently not available')) {
1277: $twhere.=' <span class="LC_fontsize_small">'.
1278: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1279: '</span>';
1280: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1281: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1282: if ($required ne '') {
1283: ($switchserver,$switchwarning) =
1284: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1285: if ($switchserver || $switchwarning) {
1286: $button = 0;
1287: }
1288: }
1289: }
1290: }
1291: } else {
1292: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1293: if (%newhash) {
1294: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1295: "\0".$envkey;
1296: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1297: ' <span class="LC_fontsize_small">'.
1298: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1299: '</span>';
1300: $ttype = $newhash{'type'};
1301: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1302: my $home = $newhash{'home'};
1303: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1304: my $required = $newhash{'internal.releaserequired'};
1305: if ($required ne '') {
1306: ($switchserver,$switchwarning) =
1307: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1308: if ($switchserver || $switchwarning) {
1309: $button = 0;
1310: }
1311: }
1312: }
1313: } else {
1314: $twhere=&mt('Currently not available');
1315: $env{'course.'.$tcourseid.'.description'}=$twhere;
1316: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1317: $ttype = 'Unavailable';
1318: }
1319: }
1320: if ($tsection) {
1321: $twhere.='<br />'.&mt('Section').': '.$tsection;
1322: }
1323: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1324: } elsif ($tdom) {
1325: $ttype='Domain';
1326: $twhere=$tdom;
1327: $sortkey=$role.$twhere;
1328: } else {
1329: $ttype='System';
1330: $twhere=&mt('system wide');
1331: $sortkey=$role.$twhere;
1332: }
1333: ($role_text,$role_text_end) =
1334: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1335: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1336: $tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning);
1337: $roletext->{$envkey}=[$role_text,$role_text_end];
1338: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1339: $sortrole->{$sortkey}=$envkey;
1340: $roleclass->{$envkey}=$ttype;
1341: }
1342: }
1343: }
1344: return ($countactive,$countfuture,$inrole,$possiblerole);
1345: }
1346:
1347: sub role_timezone {
1348: my ($where,$timezones) = @_;
1349: my $timezone;
1350: if (ref($timezones) eq 'HASH') {
1351: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1352: my $cdom = $1;
1353: my $cnum = $2;
1354: if ($cdom && $cnum) {
1355: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1356: my $tz;
1357: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1358: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1359: } else {
1360: my %timehash =
1361: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1362: $tz = $timehash{'timezone'};
1363: }
1364: if ($tz eq '') {
1365: if (!exists($timezones->{$cdom})) {
1366: my %domdefaults =
1367: &Apache::lonnet::get_domain_defaults($cdom);
1368: if ($domdefaults{'timezone_def'} eq '') {
1369: $timezones->{$cdom} = 'local';
1370: } else {
1371: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1372: }
1373: }
1374: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1375: } else {
1376: $timezones->{$cdom.'_'.$cnum} =
1377: &Apache::lonlocal::gettimezone($tz);
1378: }
1379: }
1380: $timezone = $timezones->{$cdom.'_'.$cnum};
1381: }
1382: } else {
1383: my ($tdom) = ($where =~ m{^/($match_domain)});
1384: if ($tdom) {
1385: if (!exists($timezones->{$tdom})) {
1386: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1387: if ($domdefaults{'timezone_def'} eq '') {
1388: $timezones->{$tdom} = 'local';
1389: } else {
1390: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1391: }
1392: }
1393: $timezone = $timezones->{$tdom};
1394: }
1395: }
1396: if ($timezone eq 'local') {
1397: $timezone = undef;
1398: }
1399: }
1400: return $timezone;
1401: }
1402:
1403: sub roletable_headers {
1404: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1405: my $doheaders;
1406: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1407: $r->print('<br />'
1408: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1409: .&Apache::loncommon::start_data_table_header_row()
1410: );
1411: if (!$nochoose) { $r->print('<th> </th>'); }
1412: $r->print('<th>'.&mt('User Role').'</th>'
1413: .'<th>'.&mt('Extent').'</th>'
1414: .'<th>'.&mt('Start').'</th>'
1415: .'<th>'.&mt('End').'</th>'
1416: .&Apache::loncommon::end_data_table_header_row()
1417: );
1418: $doheaders=-1;
1419: my @roletypes = &roletypes();
1420: foreach my $type (@roletypes) {
1421: my $haverole=0;
1422: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1423: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1424: $haverole=1;
1425: }
1426: }
1427: if ($haverole) { $doheaders++; }
1428: }
1429: }
1430: return $doheaders;
1431: }
1432:
1433: sub roletypes {
1434: my @types = ('Domain','Authoring Space','Course','Community','Unavailable','System');
1435: return @types;
1436: }
1437:
1438: sub print_rolerows {
1439: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1440: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1441: my @types = &roletypes();
1442: foreach my $type (@types) {
1443: my $output;
1444: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1445: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1446: if (ref($roletext) eq 'HASH') {
1447: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1448: $output.= &Apache::loncommon::start_data_table_row().
1449: $roletext->{$sortrole->{$which}}->[0].
1450: &Apache::loncommon::end_data_table_row();
1451: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1452: $output .= &Apache::loncommon::continue_data_table_row().
1453: $roletext->{$sortrole->{$which}}->[1].
1454: &Apache::loncommon::end_data_table_row();
1455: }
1456: }
1457: if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
1458: if (ref($dcroles) eq 'HASH') {
1459: if ($dcroles->{$1}) {
1460: $output .= &adhoc_roles_row($1,'');
1461: }
1462: }
1463: } elsif (($sortrole->{$which} =~ m{^user\.role\.dh\./($match_domain)/}) &&
1464: ($env{'environment.adhocroles.'.$1} ne '')) {
1465: $output .= &adhoc_customroles_row($1,'');
1466: }
1467: }
1468: }
1469: }
1470: if ($output) {
1471: if ($doheaders > 0) {
1472: $r->print(&Apache::loncommon::start_data_table_empty_row()
1473: .'<td align="center" colspan="5">'
1474: .&mt($type)
1475: .'</td>'
1476: .&Apache::loncommon::end_data_table_empty_row()
1477: );
1478: }
1479: $r->print($output);
1480: }
1481: }
1482: }
1483: }
1484:
1485: sub findcourse_advice {
1486: my ($r,$cattype) = @_;
1487: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1488: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1489: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1490: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1491: <ul>
1492: <li>'.&mt('The course has yet to be created.').'</li>
1493: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1494: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1495: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1496: <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>
1497: </ul>');
1498: } else {
1499: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1500: }
1501: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1502: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1503: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1504: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1505: &Apache::loncoursequeueadmin::queued_selfenrollment());
1506: }
1507: return;
1508: }
1509:
1510: sub requestcourse_advice {
1511: my ($r,$cattype,$inrole) = @_;
1512: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1513: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1514: my (%can_request,%request_doms,$output);
1515: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1516: if (keys(%request_doms) > 0) {
1517: my ($types,$typename) = &Apache::loncommon::course_types();
1518: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1519: my (@reqdoms,@reqtypes);
1520: foreach my $type (sort(keys(%request_doms))) {
1521: push(@reqtypes,$type);
1522: if (ref($request_doms{$type}) eq 'ARRAY') {
1523: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1524: $output .=
1525: '<li>'
1526: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1527: '<i>',
1528: '</i>',
1529: '<b>'.$domstr.'</b>')
1530: .'</li>';
1531: foreach my $dom (@{$request_doms{$type}}) {
1532: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1533: push(@reqdoms,$dom);
1534: }
1535: }
1536: }
1537: }
1538: my @showtypes;
1539: foreach my $type (@{$types}) {
1540: if (grep(/^\Q$type\E$/,@reqtypes)) {
1541: push(@showtypes,$type);
1542: }
1543: }
1544: my $requrl = '/adm/requestcourse';
1545: if (@reqdoms == 1) {
1546: $requrl .= '?showdom='.$reqdoms[0];
1547: }
1548: if (@showtypes > 0) {
1549: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1550: }
1551: if (@reqdoms == 1 || @showtypes > 0) {
1552: $requrl .= '&state=crstype&action=new';
1553: }
1554: if ($output) {
1555: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1556: '<p>'.
1557: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1558: '<ul>'.
1559: $output.
1560: '</ul>'.
1561: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1562: '<a href="'.$requrl.'">','</a>').
1563: '</p>');
1564: }
1565: }
1566: } elsif (!$env{'user.adv'}) {
1567: if ($inrole) {
1568: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1569: } else {
1570: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1571: }
1572: &findcourse_advice($r,$cattype);
1573: }
1574: return;
1575: }
1576:
1577: sub privileges_info {
1578: my ($which) = @_;
1579: my $output;
1580:
1581: $which ||= $env{'request.role'};
1582:
1583: foreach my $envkey (sort(keys(%env))) {
1584: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1585:
1586: my $where=$1;
1587: my $ttype;
1588: my $twhere;
1589: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1590: if ($trest) {
1591: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1592: $ttype='Authoring Space';
1593: $twhere='User: '.$trest.', Domain: '.$tdom;
1594: } else {
1595: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1596: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1597: if ($tsec) {
1598: my $sec_type = 'Section';
1599: if (exists($env{"user.role.gr.$where"})) {
1600: $sec_type = 'Group';
1601: }
1602: $twhere.=' ('.$sec_type.': '.$tsec.')';
1603: }
1604: }
1605: } elsif ($tdom) {
1606: $ttype='Domain';
1607: $twhere=$tdom;
1608: } else {
1609: $ttype='System';
1610: $twhere='/';
1611: }
1612: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1613: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1614: next if (!$priv);
1615:
1616: my ($prv,$restr)=split(/\&/,$priv);
1617: my $trestr='';
1618: if ($restr ne 'F') {
1619: $trestr.=' ('.
1620: join(', ',
1621: map { &Apache::lonnet::plaintext($_) }
1622: (split('',$restr))).') ';
1623: }
1624: $output .= "\n\t".
1625: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1626: }
1627: $output .= "\n".'</ul>';
1628: }
1629: return $output;
1630: }
1631:
1632: sub build_roletext {
1633: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_;
1634: my ($roletext,$roletext_end);
1635: my $is_dc=($trolecode =~ m/^dc\./);
1636: my $rowspan=($is_dc) ? ''
1637: : ' rowspan="2" ';
1638:
1639: unless ($nochoose) {
1640: my $buttonname=$trolecode;
1641: $buttonname=~s/\W//g;
1642: if (!$button) {
1643: if ($switchserver) {
1644: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1645: .'<a href="/adm/switchserver?'.$switchserver.'">'
1646: .&mt('Switch Server')
1647: .'</a></td>';
1648: } else {
1649: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1650: }
1651: if ($switchwarning) {
1652: if ($tremark eq '') {
1653: $tremark = $switchwarning;
1654: } else {
1655: $tremark .= '<br />'.$switchwarning;
1656: }
1657: }
1658: } elsif ($tstatus eq 'is') {
1659: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1660: '<input name="'.$buttonname.'" type="button" value="'.
1661: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1662: $trolecode."','".$buttonname.'\');" /></td>';
1663: } elsif ($tryagain) {
1664: $roletext.=
1665: '<td'.$rowspan.' class="'.$tbg.'">'.
1666: '<input name="'.$buttonname.'" type="button" value="'.
1667: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1668: $trolecode."','".$buttonname.'\');" /></td>';
1669: } elsif ($advanced) {
1670: $roletext.=
1671: '<td'.$rowspan.' class="'.$tbg.'">'.
1672: '<input name="'.$buttonname.'" type="button" value="'.
1673: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1674: $trolecode."','".$buttonname.'\');" /></td>';
1675: } elsif ($reinit) {
1676: $roletext.=
1677: '<td'.$rowspan.' class="'.$tbg.'">'.
1678: '<input name="'.$buttonname.'" type="button" value="'.
1679: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1680: $trolecode."','".$buttonname.'\');" /></td>';
1681: } else {
1682: $roletext.=
1683: '<td'.$rowspan.' class="'.$tbg.'">'.
1684: '<input name="'.$buttonname.'" type="button" value="'.
1685: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1686: $trolecode."','".$buttonname.'\');" /></td>';
1687: }
1688: }
1689: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1690: $tremark.=&Apache::lonannounce::showday(time,1,
1691: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1692: }
1693: $roletext.='<td>'.$trole.'</td>'
1694: .'<td>'.$twhere.'</td>'
1695: .'<td>'.$tpstart.'</td>'
1696: .'<td>'.$tpend.'</td>';
1697: if (!$is_dc) {
1698: $roletext_end = '<td colspan="4">'.
1699: $tremark.' '.
1700: '</td>';
1701: }
1702: return ($roletext,$roletext_end);
1703: }
1704:
1705: sub check_author_homeserver {
1706: my ($uname,$udom)=@_;
1707: if (($uname eq '') || ($udom eq '')) {
1708: return ('fail','');
1709: }
1710: my $home = &Apache::lonnet::homeserver($uname,$udom);
1711: if (&Apache::lonnet::host_domain($home) ne $udom) {
1712: return ('fail',$home);
1713: }
1714: my @ids=&Apache::lonnet::current_machine_ids();
1715: if (grep(/^\Q$home\E$/,@ids)) {
1716: return ('ok',$home);
1717: } else {
1718: return ('switchserver',$home);
1719: }
1720: }
1721:
1722: sub check_for_adhoc {
1723: my ($dcroles,$dhroles,$update,$then) = @_;
1724: my $numdc = 0;
1725: my $numdh = 0;
1726: my $numadhoc = 0;
1727: my $num_custom_adhoc = 0;
1728: if ($env{'user.adv'}) {
1729: foreach my $envkey (sort(keys(%env))) {
1730: if ($envkey=~/^user\.role\.(dc|dh)\.\/($match_domain)\/$/) {
1731: my $role = $1;
1732: my $roledom = $2;
1733: my $liverole = 1;
1734: my ($tstart,$tend)=split(/\./,$env{$envkey});
1735: my $limit = $update;
1736: if ((($role eq 'dc') && ($env{'request.role'} eq 'dc./'.$roledom.'/')) ||
1737: (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$roledom.'/'))) {
1738: $limit = $then;
1739: }
1740: if ($tstart && $tstart>$limit) { $liverole = 0; }
1741: if ($tend && $tend <$limit) { $liverole = 0; }
1742: if ($liverole) {
1743: if ($role eq 'dc') {
1744: $dcroles->{$roledom} = $envkey;
1745: $numdc++;
1746: } else {
1747: $dhroles->{$roledom} = $envkey;
1748: if ($env{'environment.adhocroles.'.$roledom} ne '') {
1749: $numadhoc ++;
1750: }
1751: $numdh++;
1752: }
1753: }
1754: }
1755: }
1756: }
1757: return ($numdc,$numdh,$numadhoc);
1758: }
1759:
1760: sub adhoc_course_role {
1761: my ($refresh,$update,$then) = @_;
1762: my ($cdom,$cnum,$crstype);
1763: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1764: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1765: $crstype = &Apache::loncommon::course_type();
1766: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1767: my $setprivs;
1768: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1769: $setprivs = 1;
1770: } else {
1771: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1772: if (($start && ($start>$refresh || $start == -1)) ||
1773: ($end && $end<$update)) {
1774: $setprivs = 1;
1775: }
1776: }
1777: unless ($setprivs) {
1778: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1779: $setprivs = 1;
1780: }
1781: }
1782: if ($setprivs) {
1783: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1784: my $role = $1;
1785: my $custom_role = $2;
1786: my $usec = $3;
1787: if ($role eq 'cr') {
1788: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1789: $role .= $custom_role;
1790: } else {
1791: return;
1792: }
1793: }
1794: my (%userroles,%newrole,%newgroups,%group_privs);
1795: my %cgroups =
1796: &Apache::lonnet::get_active_groups($env{'user.domain'},
1797: $env{'user.name'},$cdom,$cnum);
1798: foreach my $group (keys(%cgroups)) {
1799: $group_privs{$group} =
1800: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1801: }
1802: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1803: my $area = '/'.$cdom.'/'.$cnum;
1804: my $spec = $role.'.'.$area;
1805: if ($usec ne '') {
1806: $spec .= '/'.$usec;
1807: $area .= '/'.$usec;
1808: }
1809: if ($role =~ /^cr/) {
1810: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1811: } else {
1812: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1813: }
1814: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1815: my $adhocstart = $refresh-1;
1816: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1817: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1818: }
1819: }
1820: }
1821: return;
1822: }
1823:
1824: sub check_forcc {
1825: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1826: my ($is_cc,$ccrole);
1827: if ($crstype eq 'Community') {
1828: $ccrole = 'co';
1829: } else {
1830: $ccrole = 'cc';
1831: }
1832: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1833: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1834: if (defined($env{$envkey})) {
1835: $is_cc = 1;
1836: my ($tstart,$tend)=split(/\./,$env{$envkey});
1837: my $limit = $update;
1838: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1839: $limit = $then;
1840: }
1841: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1842: if ($tend && $tend <$limit) { $is_cc = 0; }
1843: }
1844: }
1845: return $is_cc;
1846: }
1847:
1848: sub courselink {
1849: my ($roledom,$rowtype,$role) = @_;
1850: my $courseform=&Apache::loncommon::selectcourse_link
1851: ('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
1852: 'domain'.$rowtype.'_'.$roledom.'_'.$role,
1853: 'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
1854: $roledom.':'.$role,undef,'Course/Community');
1855: my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1856: '<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1857: '<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
1858: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
1859: return $courseform.$hiddenitems;
1860: }
1861:
1862: sub coursepick_jscript {
1863: my %js_lt = &Apache::lonlocal::texthash(
1864: 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.",
1865: youc => 'You can only use this screen to select courses and communities in the current domain.',
1866: );
1867: &js_escape(\%js_lt);
1868: my $verify_script = <<"END";
1869: <script type="text/javascript">
1870: // <![CDATA[
1871: function verifyCoursePick(caller) {
1872: var numbutton = getIndex(caller)
1873: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1874: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1875: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1876: if (pickedCourse != '') {
1877: if (numbutton != -1) {
1878: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1879: document.rolechoice.elements[numbutton+1].name = courseTarget
1880: document.rolechoice.submit()
1881: }
1882: }
1883: else {
1884: alert("$js_lt{'plsu'}");
1885: }
1886: }
1887: else {
1888: alert("$js_lt{'youc'}")
1889: }
1890: }
1891: function getIndex(caller) {
1892: for (var i=0;i<document.rolechoice.elements.length;i++) {
1893: if (document.rolechoice.elements[i] == caller) {
1894: return i;
1895: }
1896: }
1897: return -1;
1898: }
1899: // ]]>
1900: </script>
1901: END
1902: return $verify_script;
1903: }
1904:
1905: sub coauthorlink {
1906: my ($dcdom,$rowtype) = @_;
1907: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1908: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1909: return $coauthorform.$hiddenitems;
1910: }
1911:
1912: sub display_cc_role {
1913: my $rolekey = shift;
1914: my ($roletext,$roletext_end);
1915: my $advanced = $env{'user.adv'};
1916: my $tryagain = $env{'form.tryagain'};
1917: unless ($rolekey =~/^error\:/) {
1918: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1919: my $ccrole = $1;
1920: my $tdom = $2;
1921: my $trest = $3;
1922: my $tcourseid = $tdom.'_'.$trest;
1923: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1924: my $twhere;
1925: my $ttype;
1926: my $tbg='LC_roles_is';
1927: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1928: if (%newhash) {
1929: $twhere=$newhash{'description'}.
1930: ' <span class="LC_fontsize_small">'.
1931: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1932: '</span>';
1933: $ttype = $newhash{'type'};
1934: } else {
1935: $twhere=&mt('Currently not available');
1936: $env{'course.'.$tcourseid.'.description'}=$twhere;
1937: }
1938: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
1939: $twhere.="<br />".&mt('Domain').":".$tdom;
1940: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1941: }
1942: }
1943: return ($roletext,$roletext_end);
1944: }
1945:
1946: sub adhoc_roles_row {
1947: my ($dcdom,$rowtype) = @_;
1948: my $output = &Apache::loncommon::continue_data_table_row()
1949: .' <td colspan="5" class="LC_textsize_mobile">'
1950: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1951: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1952: .' ';
1953: my $role = 'cc';
1954: my $selectcclink = &courselink($dcdom,$rowtype,$role);
1955: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
1956: my $carole = &Apache::lonnet::plaintext('ca');
1957: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1958: $output.=$ccrole.': '.$selectcclink
1959: .' | '.$carole.': '.$selectcalink.'</td>'
1960: .&Apache::loncommon::end_data_table_row();
1961: return $output;
1962: }
1963:
1964: sub adhoc_customroles_row {
1965: my ($dhdom,$rowtype) = @_;
1966: my $output = &Apache::loncommon::continue_data_table_row()
1967: .' <td colspan="5" class="LC_textsize_mobile">'
1968: .&mt('[_1]Ad hoc[_2] course/community roles in domain [_3] --',
1969: '<span class="LC_cusr_emph">','</span>',$dhdom);
1970: my @customroles = split(/,/,$env{'environment.adhocroles.'.$dhdom});
1971: my $count = 0;
1972: foreach my $role (@customroles) {
1973: next if (($role eq '') || ($role =~ /\W/));
1974: $output .= ' '.$role.': '.&courselink($dhdom,$rowtype,$role).' |';
1975: $count ++;
1976: }
1977: if ($count) {
1978: return $output;
1979: }
1980: return;
1981: }
1982:
1983: sub recent_filename {
1984: my $area=shift;
1985: return 'nohist_recent_'.&escape($area);
1986: }
1987:
1988: sub courseloadpage {
1989: my ($courseid) = @_;
1990: my $startpage;
1991: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1992: [$courseid.':courseinit']);
1993: my ($tmp) = %entry_settings;
1994: unless ($tmp =~ /^error: 2 /) {
1995: $startpage = $entry_settings{$courseid.':courseinit'};
1996: }
1997: if ($startpage eq '') {
1998: if (exists($env{'environment.course_init_display'})) {
1999: $startpage = $env{'environment.course_init_display'};
2000: }
2001: }
2002: return $startpage;
2003: }
2004:
2005: sub update_session_roles {
2006: my $then=$env{'user.login.time'};
2007: my $refresh=$env{'user.refresh.time'};
2008: if (!$refresh) {
2009: $refresh = $then;
2010: }
2011: my $update = $env{'user.update.time'};
2012: if (!$update) {
2013: $update = $then;
2014: }
2015: my $now = time;
2016: my %roleshash =
2017: &Apache::lonnet::get_my_roles('','','userroles',
2018: ['active','future','previous'],
2019: undef,undef,1);
2020: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2021: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2022: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2023: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2024: @rolecodes);
2025: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2026: my %courseroles;
2027: foreach my $item (keys(%roleshash)) {
2028: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2029: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2030: my ($section,$group,@group_privs);
2031: if ($role =~ m{^gr/(\w*)$}) {
2032: $role = 'gr';
2033: my $priv = $1;
2034: next if ($tstart eq '-1');
2035: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2036: if ($priv ne '') {
2037: push(@group_privs,$priv);
2038: }
2039: }
2040: if ($remainder =~ /:/) {
2041: (my $additional_privs,$group) =
2042: ($remainder =~ /^([\w:]+):([^:]+)$/);
2043: if ($additional_privs ne '') {
2044: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2045: push(@group_privs,split(/:/,$additional_privs));
2046: @group_privs = sort(@group_privs);
2047: }
2048: }
2049: } else {
2050: $group = $remainder;
2051: }
2052: } else {
2053: $section = $remainder;
2054: }
2055: my $where = "/$udom/$uname";
2056: if ($section ne '') {
2057: $where .= "/$section";
2058: } elsif ($group ne '') {
2059: $where .= "/$group";
2060: }
2061: my $rolekey = "$role.$where";
2062: my $envkey = "user.role.$rolekey";
2063: $dbroles{$envkey} = 1;
2064: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2065: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2066: $currrole_expired = 1;
2067: }
2068: }
2069: if ($env{$envkey} eq '') {
2070: my $status_in_db =
2071: &curr_role_status($tstart,$tend,$now,$now);
2072: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2073: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2074: if ($status_in_db eq 'active') {
2075: if ($section eq '') {
2076: push(@newsec,'none');
2077: } else {
2078: push(@newsec,$section);
2079: }
2080: }
2081: } else {
2082: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2083: push(@changed_roles,$role);
2084: }
2085: if ($status_in_db ne 'previous') {
2086: if ($role eq 'gr') {
2087: $newgroup{$rolekey} = $status_in_db;
2088: if ($status_in_db eq 'active') {
2089: unless (ref($courseroles{$udom}) eq 'HASH') {
2090: %{$courseroles{$udom}} =
2091: &Apache::lonnet::get_my_roles('','','userroles',
2092: ['active'],\@possroles,
2093: [$udom],1);
2094: }
2095: &Apache::lonnet::get_groups_roles($udom,$uname,
2096: $courseroles{$udom},
2097: \@rolecodes,\%groups_roles);
2098: }
2099: } else {
2100: $newrole{$rolekey} = $status_in_db;
2101: }
2102: }
2103: }
2104: } else {
2105: my ($currstart,$currend) = split(/\./,$env{$envkey});
2106: if ($role eq 'gr') {
2107: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2108: $hasgroups = 1;
2109: }
2110: }
2111: if (($currstart ne $tstart) || ($currend ne $tend)) {
2112: my $status_in_env =
2113: &curr_role_status($currstart,$currend,$refresh,$update);
2114: my $status_in_db =
2115: &curr_role_status($tstart,$tend,$now,$now);
2116: if ($status_in_env ne $status_in_db) {
2117: if ($status_in_env eq 'active') {
2118: if ($role eq 'st') {
2119: if ($env{'request.role'} eq $rolekey) {
2120: my $switchsection;
2121: unless (ref($courseroles{$udom}) eq 'HASH') {
2122: %{$courseroles{$udom}} =
2123: &Apache::lonnet::get_my_roles('','','userroles',
2124: ['active'],
2125: \@possroles,[$udom],1);
2126: }
2127: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2128: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2129: $switchsection = 1;
2130: last;
2131: }
2132: }
2133: if ($switchsection) {
2134: if ($section eq '') {
2135: $oldsec = 'none';
2136: } else {
2137: $oldsec = $section;
2138: }
2139: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2140: } else {
2141: $currrole_expired = 1;
2142: next;
2143: }
2144: }
2145: }
2146: unless ($rolekey eq $env{'request.role'}) {
2147: if ($role eq 'gr') {
2148: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2149: } else {
2150: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2151: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2152: }
2153: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2154: }
2155: } elsif ($status_in_db eq 'active') {
2156: if (($role eq 'st') &&
2157: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2158: if ($section eq '') {
2159: push(@newsec,'none');
2160: } else {
2161: push(@newsec,$section);
2162: }
2163: } elsif ($role eq 'gr') {
2164: unless (ref($courseroles{$udom}) eq 'HASH') {
2165: %{$courseroles{$udom}} =
2166: &Apache::lonnet::get_my_roles('','','userroles',
2167: ['active'],
2168: \@possroles,[$udom],1);
2169: }
2170: &Apache::lonnet::get_groups_roles($udom,$uname,
2171: $courseroles{$udom},
2172: \@rolecodes,\%groups_roles);
2173: }
2174: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2175: }
2176: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2177: push(@changed_roles,$role);
2178: }
2179: if ($role eq 'gr') {
2180: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2181: } else {
2182: $rolechange{$rolekey} = $status_in_db;
2183: }
2184: }
2185: } else {
2186: if ($role eq 'gr') {
2187: unless ($checkedgroup{$where}) {
2188: my $status_in_db =
2189: &curr_role_status($tstart,$tend,$refresh,$now);
2190: if ($tstart eq '-1') {
2191: $status_in_db = 'deleted';
2192: }
2193: unless (ref($courseroles{$udom}) eq 'HASH') {
2194: %{$courseroles{$udom}} =
2195: &Apache::lonnet::get_my_roles('','','userroles',
2196: ['active'],
2197: \@possroles,[$udom],1);
2198: }
2199: if (ref($courseroles{$udom}) eq 'HASH') {
2200: foreach my $item (keys(%{$courseroles{$udom}})) {
2201: next unless ($item =~ /^\Q$uname\E/);
2202: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2203: my $area = '/'.$cdom.'/'.$cnum;
2204: if ($crssec ne '') {
2205: $area .= '/'.$crssec;
2206: }
2207: my $crsrolekey = $crsrole.'.'.$area;
2208: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2209: $currprivs =~ s/^://;
2210: $currprivs =~ s/\&F$//;
2211: my @curr_grp_privs = split(/\&F:/,$currprivs);
2212: @curr_grp_privs = sort(@curr_grp_privs);
2213: my @diffs;
2214: if (@group_privs > 0 || @curr_grp_privs > 0) {
2215: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2216: }
2217: if (@diffs == 0) {
2218: last;
2219: } else {
2220: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2221: push(@rolecodes,'gr');
2222: }
2223: &gather_roleprivs(\%allroles,\%allgroups,
2224: \%userroles,$where,$role,
2225: $tstart,$tend,$status_in_db);
2226: if ($status_in_db eq 'active') {
2227: &Apache::lonnet::get_groups_roles($udom,$uname,
2228: $courseroles{$udom},
2229: \@rolecodes,\%groups_roles);
2230: }
2231: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2232: last;
2233: }
2234: }
2235: }
2236: $checkedgroup{$where} = 1;
2237: }
2238: } elsif ($role =~ /^cr/) {
2239: my $status_in_db =
2240: &curr_role_status($tstart,$tend,$refresh,$now);
2241: my ($rdummy,$rest) = split(/\//,$role,2);
2242: my %currpriv;
2243: unless (exists($crprivs{$rest})) {
2244: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2245: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2246: if (&Apache::lonnet::hostname($homsvr) ne '') {
2247: my ($rdummy,$roledef)=
2248: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2249: $rdomain,$rauthor);
2250: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2251: my $i = 0;
2252: my @scopes = ('sys','dom','crs');
2253: my @privs = split(/\_/,$roledef);
2254: foreach my $priv (@privs) {
2255: my ($blank,@prv) = split(/:/,$priv);
2256: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2257: if (@prv) {
2258: $priv = ':'.join(':',sort(@prv));
2259: }
2260: $crprivs{$rest}{$scopes[$i]} = $priv;
2261: $i++;
2262: }
2263: }
2264: }
2265: }
2266: my $status_in_env =
2267: &curr_role_status($currstart,$currend,$refresh,$update);
2268: if ($status_in_env eq 'active') {
2269: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2270: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2271: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2272: if (keys(%crprivs)) {
2273: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2274: ($crprivs{$rest}{dom} ne $currpriv{dom})
2275: ||
2276: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2277: &gather_roleprivs(\%allroles,\%allgroups,
2278: \%userroles,$where,$role,
2279: $tstart,$tend,$status_in_db);
2280: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2281: push(@changed_roles,$role);
2282: }
2283: $customprivchg{$rolekey} = $status_in_env;
2284: }
2285: }
2286: }
2287: }
2288: }
2289: }
2290: }
2291: foreach my $envkey (keys(%env)) {
2292: next unless ($envkey =~ /^user\.role\./);
2293: next if ($dbroles{$envkey});
2294: next if ($envkey eq 'user.role.'.$env{'request.role'});
2295: my ($currstart,$currend) = split(/\./,$env{$envkey});
2296: my $status_in_env =
2297: &curr_role_status($currstart,$currend,$refresh,$update);
2298: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2299: my ($role,$rest)=split(m{\./},$rolekey,2);
2300: $rest = '/'.$rest;
2301: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2302: if ($status_in_env eq 'active') {
2303: if ($role eq 'gr') {
2304: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2305: \@possroles);
2306: } else {
2307: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2308: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2309: }
2310: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2311: push(@changed_roles,$role);
2312: }
2313: $deletedroles{$rolekey} = 1;
2314: }
2315: }
2316: }
2317: if (($oldsec) && (@newsec > 0)) {
2318: if (@newsec > 1) {
2319: $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>';
2320: } else {
2321: my $newrole = $env{'request.role'};
2322: if ($newsec[0] eq 'none') {
2323: $newrole =~ s{(/[^/])$}{};
2324: } elsif ($oldsec eq 'none') {
2325: $newrole .= '/'.$newsec[0];
2326: } else {
2327: $newrole =~ s{([^/]+)$}{$newsec[0]};
2328: }
2329: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2330: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2331: my %temp=('logout_'.$env{'request.course.id'} => time);
2332: &Apache::lonnet::put('email_status',\%temp);
2333: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2334: &Apache::lonnet::appenv({"request.course.id" => '',
2335: "request.course.fn" => '',
2336: "request.course.uri" => '',
2337: "request.course.sec" => '',
2338: "request.role" => 'cm',
2339: "request.role.adv" => $env{'user.adv'},
2340: "request.role.domain" => $env{'user.domain'}});
2341: my $rolename = &Apache::loncommon::plainname($curr_role);
2342: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2343: '<input type="hidden" name="newrole" value="" />'.
2344: '<input type="hidden" name="selectrole" value="1" />'.
2345: '<span class="LC_info">'.
2346: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2347: my $button = '<input type="button" name="sectionchanged" value="'.
2348: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2349: if ($newsec[0] eq 'none') {
2350: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2351: } else {
2352: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2353: }
2354: $msg .= '</form></p>';
2355: }
2356: } elsif ($currrole_expired) {
2357: $msg .= '<p class="LC_warning">';
2358: if (&Apache::loncommon::show_course()) {
2359: $msg .= &mt('Your role in the current course has expired.');
2360: } else {
2361: $msg .= &mt('Your current role has expired.');
2362: }
2363: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2364: }
2365: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2366: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2367: $curr_author = $env{'user.author'};
2368: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2369: ($env{'request.role'} =~/^aa/)) {
2370: $curr_role_author=1;
2371: }
2372: $curr_is_adv = $env{'user.adv'};
2373: $curr_role_adv = $env{'request.role.adv'};
2374: if (keys(%userroles) > 0) {
2375: foreach my $role (@changed_roles) {
2376: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2377: push(@rolecodes,$role);
2378: }
2379: }
2380: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2381: push(@rolecodes,'cm');
2382: }
2383: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2384: }
2385: my %newenv;
2386: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2387: unless ($curr_is_adv) {
2388: $newenv{'user.adv'} = 1;
2389: }
2390: } elsif ($curr_is_adv && !$curr_role_adv) {
2391: &Apache::lonnet::delenv('user.adv');
2392: }
2393: my %authorroleshash =
2394: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2395: if (keys(%authorroleshash)) {
2396: unless ($curr_author) {
2397: $newenv{'user.author'} = 1;
2398: }
2399: } elsif ($curr_author && !$curr_role_author) {
2400: &Apache::lonnet::delenv('user.author');
2401: }
2402: if ($env{'request.course.id'}) {
2403: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2404: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2405: my (@activecrsgroups,$crsgroupschanged);
2406: if ($env{'request.course.groups'}) {
2407: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2408: foreach my $item (keys(%deletedroles)) {
2409: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2410: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2411: $crsgroupschanged = 1;
2412: last;
2413: }
2414: }
2415: }
2416: }
2417: unless ($crsgroupschanged) {
2418: foreach my $item (keys(%newgroup)) {
2419: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2420: if ($newgroup{$item} eq 'active') {
2421: $crsgroupschanged = 1;
2422: last;
2423: }
2424: }
2425: }
2426: }
2427: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2428: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2429: ($crsgroupschanged)) {
2430: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2431: ['active'],['gr'],[$cdom],1);
2432: my @activegroups;
2433: foreach my $item (keys(%grouproles)) {
2434: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2435: my $group;
2436: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2437: if ($remainder =~ /:/) {
2438: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2439: } else {
2440: $group = $remainder;
2441: }
2442: if ($group ne '') {
2443: push(@activegroups,$group);
2444: }
2445: }
2446: $newenv{'request.course.groups'} = join(':',@activegroups);
2447: }
2448: }
2449: if (keys(%newenv)) {
2450: &Apache::lonnet::appenv(\%newenv);
2451: }
2452: if (!@changed_roles || !(keys(%changed_groups))) {
2453: my ($rolesmsg,$groupsmsg);
2454: if (!@changed_roles) {
2455: if (&Apache::loncommon::show_course()) {
2456: $rolesmsg = &mt('No new courses or communities');
2457: } else {
2458: $rolesmsg = &mt('No role changes');
2459: }
2460: }
2461: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2462: $groupsmsg = &mt('No changes in course/community groups');
2463: }
2464: if (!@changed_roles && !(keys(%changed_groups))) {
2465: if (($msg ne '') || ($groupsmsg ne '')) {
2466: $msg .= '<ul>';
2467: if ($rolesmsg) {
2468: $msg .= '<li>'.$rolesmsg.'</li>';
2469: }
2470: if ($groupsmsg) {
2471: $msg .= '<li>'.$groupsmsg.'</li>';
2472: }
2473: $msg .= '</ul>';
2474: } else {
2475: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2476: }
2477: return $msg;
2478: }
2479: }
2480: my $changemsg;
2481: if (@changed_roles > 0) {
2482: if (keys(%newgroup) > 0) {
2483: my $groupmsg;
2484: my (%curr_groups,%groupdescs,$currcrs);
2485: foreach my $item (sort(keys(%newgroup))) {
2486: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2487: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2488: my ($cdom,$cnum) = split(/\//,$1);
2489: my $group = $2;
2490: if ($currcrs ne $cdom.'_'.$cnum) {
2491: if ($currcrs) {
2492: $groupmsg .= '</ul><li>';
2493: }
2494: $groupmsg .= '<li><b>'.
2495: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2496: $currcrs = $cdom.'_'.$cnum;
2497: }
2498: my $groupdesc;
2499: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2500: %{$curr_groups{$cdom.'_'.$cnum}} =
2501: &Apache::longroup::coursegroups($cdom,$cnum);
2502: }
2503: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2504: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2505:
2506: my %groupinfo =
2507: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2508: $groupdescs{$cdom.'_'.$cnum}{$group} =
2509: &unescape($groupinfo{'description'});
2510: }
2511: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2512: if ($groupdesc) {
2513: $groupmsg .= '<li>'.
2514: &mt('[_1] with status: [_2].',
2515: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2516: }
2517: }
2518: }
2519: if ($groupmsg) {
2520: $groupmsg .= '</ul></li>';
2521: }
2522: }
2523: if ($groupmsg) {
2524: $changemsg .= '<li>'.
2525: &mt('Courses with new groups').'</li>'.
2526: '<ul>'.$groupmsg.'</ul></li>';
2527: }
2528: }
2529: if (keys(%newrole) > 0) {
2530: my $newmsg;
2531: foreach my $item (sort(keys(%newrole))) {
2532: my $desc = &role_desc($item,$update,$refresh,$now);
2533: if ($desc) {
2534: $newmsg .= '<li>'.
2535: &mt('[_1] with status: [_2].',
2536: $desc,&mt($newrole{$item})).'</li>';
2537: }
2538: }
2539: if ($newmsg) {
2540: $changemsg .= '<li>'.&mt('New roles').
2541: '<ul>'.$newmsg.'</ul>'.
2542: '</li>';
2543: }
2544: }
2545: if (keys(%customprivchg) > 0) {
2546: my $privmsg;
2547: foreach my $item (sort(keys(%customprivchg))) {
2548: my $desc = &role_desc($item,$update,$refresh,$now);
2549: if ($desc) {
2550: $privmsg .= '<li>'.$desc.'</li>';
2551: }
2552: }
2553: if ($privmsg) {
2554: $changemsg .= '<li>'.
2555: &mt('Custom roles with privilege changes').
2556: '<ul>'.$privmsg.'</ul>'.
2557: '</li>';
2558: }
2559: }
2560: if (keys(%rolechange) > 0) {
2561: my $rolemsg;
2562: foreach my $item (sort(keys(%rolechange))) {
2563: my $desc = &role_desc($item,$update,$refresh,$now);
2564: if ($desc) {
2565: $rolemsg .= '<li>'.
2566: &mt('[_1] status now: [_2].',$desc,
2567: $rolechange{$item}).'</li>';
2568: }
2569: }
2570: if ($rolemsg) {
2571: $changemsg .= '<li>'.
2572: &mt('Existing roles with status changes').'</li>'.
2573: '<ul>'.$rolemsg.'</ul>'.
2574: '</li>';
2575: }
2576: }
2577: if (keys(%deletedroles) > 0) {
2578: my $delmsg;
2579: foreach my $item (sort(keys(%deletedroles))) {
2580: my $desc = &role_desc($item,$update,$refresh,$now);
2581: if ($desc) {
2582: $delmsg .= '<li>'.$desc.'</li>';
2583: }
2584: }
2585: if ($delmsg) {
2586: $changemsg .= '<li>'.
2587: &mt('Existing roles now expired').'</li>'.
2588: '<ul>'.$delmsg.'</ul>'.
2589: '</li>';
2590: }
2591: }
2592: }
2593: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2594: my $groupchgmsg;
2595: foreach my $key (sort(keys(%changed_groups))) {
2596: my $crs = 'gr/'.$key;
2597: $crs =~ s/_/\//;
2598: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2599: if (ref($changed_groups{$key}) eq 'HASH') {
2600: my @showgroups;
2601: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2602: if ($changed_groups{$key}{$group} eq 'active') {
2603: push(@showgroups,$group);
2604: }
2605: }
2606: if (@showgroups > 0) {
2607: $groupchgmsg .= '<li>'.
2608: &mt('Course: [_1], groups: [_2].',$key,
2609: join(', ',@showgroups)).
2610: '</li>';
2611: }
2612: }
2613: }
2614: }
2615: if (keys(%groupchange) > 0) {
2616: $groupchgmsg .= '<li>'.
2617: &mt('Existing course/community groups with status changes').'</li>'.
2618: '<ul>';
2619: foreach my $crs (sort(keys(%groupchange))) {
2620: my $cid = $crs;
2621: $cid=~s{^/}{};
2622: $cid=~s{/}{_};
2623: my $crsdesc = $env{'course.'.$cid.'.description'};
2624: my $cdom = $env{'course.'.$cid.'.domain'};
2625: my $cnum = $env{'course.'.$cid.'.num'};
2626: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2627: my %groupdesc;
2628: if (ref($groupchange{$crs}) eq 'HASH') {
2629: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2630: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2631: unless ($groupdesc{$group}) {
2632: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2633: $groupdesc{$group} = &unescape($groupinfo{'description'});
2634: }
2635: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2636: }
2637: $groupchgmsg .= '</ul></li>';
2638: }
2639: }
2640: $groupchgmsg .= '</ul></li>';
2641: }
2642: if ($groupchgmsg) {
2643: $changemsg .= '<li>'.
2644: &mt('Courses with changes in groups').'</li>'.
2645: '<ul>'.$groupchgmsg.'</ul></li>';
2646: }
2647: }
2648: if ($changemsg) {
2649: $msg .= '<ul>'.$changemsg.'</ul>';
2650: } else {
2651: if (&Apache::loncommon::show_course()) {
2652: $msg = &mt('No new courses or communities');
2653: } else {
2654: $msg = &mt('No role changes');
2655: }
2656: }
2657: return $msg;
2658: }
2659:
2660: sub role_desc {
2661: my ($item,$update,$refresh,$now) = @_;
2662: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2663: $trole,$tremark);
2664: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2665: $now,\$role,\$where,\$trolecode,
2666: \$tstatus,\$tstart,\$tend);
2667: return unless ($role);
2668: if ($role =~ /^cr\//) {
2669: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2670: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2671: }
2672: $trole=Apache::lonnet::plaintext($role);
2673: my ($tdom,$trest,$tsection)=
2674: split(/\//,Apache::lonnet::declutter($where));
2675: if (($role eq 'ca') || ($role eq 'aa')) {
2676: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2677: $home = &Apache::lonnet::hostname($home);
2678: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2679: ': '.$tdom.' '.&mt('Server').': '.$home;
2680: } elsif ($role eq 'au') {
2681: my $home = &Apache::lonnet::homeserver
2682: ($env{'user.name'},$env{'user.domain'});
2683: $home = &Apache::lonnet::hostname($home);
2684: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2685: ': '.$home;
2686: } elsif ($trest) {
2687: my $tcourseid=$tdom.'_'.$trest;
2688: my $crstype = &Apache::loncommon::course_type($tcourseid);
2689: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2690: if ($env{'course.'.$tcourseid.'.description'}) {
2691: $twhere=$env{'course.'.$tcourseid.'.description'};
2692: } else {
2693: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2694: if (%newhash) {
2695: $twhere=$newhash{'description'};
2696: } else {
2697: $twhere=&mt('Currently not available');
2698: }
2699: }
2700: if ($tsection) {
2701: $twhere.= ' '.&mt('Section').': '.$tsection;
2702: }
2703: if ($role ne 'st') {
2704: $twhere.= ' '.&mt('Domain').': '.$tdom;
2705: }
2706: } elsif ($tdom) {
2707: $twhere = &mt('Domain').': '.$tdom;
2708: }
2709: my $output;
2710: if ($trole) {
2711: $output = $trole;
2712: if ($twhere) {
2713: $output .= " -- $twhere";
2714: }
2715: if ($tremark) {
2716: $output .= '<br />'.$tremark;
2717: }
2718: }
2719: return $output;
2720: }
2721:
2722: sub curr_role_status {
2723: my ($start,$end,$refresh,$update) = @_;
2724: if (($start) && ($start<0)) { return 'deleted' };
2725: my $status = 'active';
2726: if (($end) && ($end<=$update)) {
2727: $status = 'previous';
2728: }
2729: if (($start) && ($refresh<$start)) {
2730: $status = 'future';
2731: }
2732: return $status;
2733: }
2734:
2735: sub gather_roleprivs {
2736: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2737: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2738: if (($area ne '') && ($role ne '')) {
2739: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2740: $area,$tstart,$tend);
2741: my $spec=$role.'.'.$area;
2742: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2743: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2744: if ($status eq 'active') {
2745: if ($role =~ /^cr\//) {
2746: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2747: } elsif ($role eq 'gr') {
2748: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2749: $env{'user.domain'},
2750: $env{'user.name'});
2751: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2752: (undef,my $group_privs) = split(/\//,$trole);
2753: $group_privs = &unescape($group_privs);
2754: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2755: } else {
2756: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2757: }
2758: }
2759: }
2760: return;
2761: }
2762:
2763: sub is_active_course {
2764: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2765: return unless(ref($roleshashref) eq 'HASH');
2766: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2767: my $is_active;
2768: foreach my $key (keys(%{$roleshashref})) {
2769: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2770: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2771: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2772: if ($status eq 'active') {
2773: $is_active = 1;
2774: last;
2775: }
2776: }
2777: }
2778: return $is_active;
2779: }
2780:
2781: sub get_roles_functions {
2782: my ($rolescount,$cattype) = @_;
2783: my @links;
2784: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2785: if ($env{'environment.canrequest.author'}) {
2786: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2787: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2788: }
2789: }
2790: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2791: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2792: }
2793: if (&Apache::lonmenu::check_for_rcrs()) {
2794: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2795: }
2796: if ($env{'form.state'} eq 'queued') {
2797: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2798: } else {
2799: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2800: }
2801: if ($env{'user.adv'}) {
2802: if ($env{'form.display'} eq 'showall') {
2803: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2804: } else {
2805: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2806: }
2807: }
2808: unless ($cattype eq 'none') {
2809: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2810: }
2811: my $funcs;
2812: if ($env{'browser.mobile'}) {
2813: my @functions;
2814: foreach my $link (@links) {
2815: push(@functions,[$link->[0],$link->[2]]);
2816: }
2817: my $title = 'Display options';
2818: if ($env{'user.adv'}) {
2819: $title = 'Roles options';
2820: }
2821: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2822: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2823: } else {
2824: $funcs = &Apache::lonhtmlcommon::start_funclist();
2825: foreach my $link (@links) {
2826: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2827: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2828: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2829: $link->[2].'</a>');
2830: }
2831: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2832: $funcs = &Apache::loncommon::head_subbox($funcs);
2833: }
2834: return $funcs;
2835: }
2836:
2837: sub get_queued {
2838: my ($output,%reqcrs);
2839: my ($types,$typenames) = &Apache::loncommon::course_types();
2840: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2841: $env{'user.name'},'^status:');
2842: foreach my $key (keys(%statusinfo)) {
2843: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2844: (undef,my($cdom,$cnum)) = split(/:/,$key);
2845: my $requestkey = $cdom.'_'.$cnum;
2846: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2847: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2848: $env{'user.domain'},$env{'user.name'});
2849: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2850: my $reqtime = $history{'reqtime'};
2851: my $lastupdate = $history{'timestamp'};
2852: my $showtype = $history{'crstype'};
2853: if (defined($typenames->{$history{'crstype'}})) {
2854: $showtype = $typenames->{$history{'crstype'}};
2855: }
2856: my $description;
2857: if (ref($history{'details'}) eq 'HASH') {
2858: $description = $history{details}{'cdescr'};
2859: }
2860: @{$reqcrs{$reqtime}} = ($description,$showtype);
2861: }
2862: }
2863: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2864: if (@sortedtimes > 0) {
2865: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2866: &Apache::loncommon::start_data_table().
2867: &Apache::loncommon::start_data_table_header_row().
2868: '<th>'.&mt('Date requested').'</th>'.
2869: '<th>'.&mt('Course title').'</th>'.
2870: '<th>'.&mt('Course type').'</th>';
2871: &Apache::loncommon::end_data_table_header_row();
2872: foreach my $reqtime (@sortedtimes) {
2873: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2874: $output .= &Apache::loncommon::start_data_table_row().
2875: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2876: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2877: &Apache::loncommon::end_data_table_row();
2878: }
2879: $output .= &Apache::loncommon::end_data_table().
2880: '<br /></p>';
2881: }
2882: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2883: if ($queuedselfenroll) {
2884: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2885: $queuedselfenroll.'<br /></p>';
2886: }
2887: if ($env{'environment.canrequest.author'}) {
2888: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2889: my $requestauthor;
2890: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2891: if (($status eq 'approval') || ($status eq 'approved')) {
2892: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2893: if ($status eq 'approval') {
2894: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2895: &Apache::lonlocal::locallocaltime($timestamp));
2896: } elsif ($status eq 'approved') {
2897: my %roleshash =
2898: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2899: ['active'],['au'],[$env{'user.domain'}]);
2900: if (keys(%roleshash)) {
2901: $output .= '<span class="LC_info">'.
2902: &mt('Your request for an author role has been approved.').'<br />'.
2903: &mt('Use the "Check for changes" link to update your list of roles.').
2904: '</span>';
2905: }
2906: }
2907: $output .= '</p>';
2908: }
2909: }
2910: }
2911: unless ($output) {
2912: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2913: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2914: $output = &mt('No requests for courses, communities or authoring currently queued');
2915: } else {
2916: $output = &mt('No enrollment requests currently queued awaiting approval');
2917: }
2918: }
2919: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2920: $output.'</fieldset></div><br clear="all" />';
2921: }
2922:
2923: 1;
2924: __END__
2925:
2926: =head1 NAME
2927:
2928: Apache::lonroles - User Roles Screen
2929:
2930: =head1 SYNOPSIS
2931:
2932: Invoked by /etc/httpd/conf/srm.conf:
2933:
2934: <Location /adm/roles>
2935: PerlAccessHandler Apache::lonacc
2936: SetHandler perl-script
2937: PerlHandler Apache::lonroles
2938: ErrorDocument 403 /adm/login
2939: ErrorDocument 500 /adm/errorhandler
2940: </Location>
2941:
2942: =head1 OVERVIEW
2943:
2944: =head2 Choosing Roles
2945:
2946: C<lonroles> is a handler that allows a user to switch roles in
2947: mid-session. LON-CAPA attempts to work with "No Role Specified", the
2948: default role that a user has before selecting a role, as widely as
2949: possible, but certain handlers for example need specification which
2950: course they should act on, etc. Both in this scenario, and when the
2951: handler determines via C<lonnet>'s C<&allowed> function that a certain
2952: action is not allowed, C<lonroles> is used as error handler. This
2953: allows the user to select another role which may have permission to do
2954: what they were trying to do.
2955:
2956: =begin latex
2957:
2958: \begin{figure}
2959: \begin{center}
2960: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
2961: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
2962: \end{center}
2963: \end{figure}
2964:
2965: =end latex
2966:
2967: =head2 Role Initialization
2968:
2969: 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.
2970:
2971: =head1 INTRODUCTION
2972:
2973: This module enables a user to select what role he wishes to
2974: operate under (instructor, student, teaching assistant, course
2975: coordinator, etc). These roles are pre-established by the actions
2976: of upper-level users.
2977:
2978: This is part of the LearningOnline Network with CAPA project
2979: described at http://www.lon-capa.org.
2980:
2981: =head1 HANDLER SUBROUTINE
2982:
2983: This routine is called by Apache and mod_perl.
2984:
2985: =over 4
2986:
2987: =item *
2988:
2989: Roles Initialization (yes/no)
2990:
2991: =item *
2992:
2993: Get Error Message from Environment
2994:
2995: =item *
2996:
2997: Who is this?
2998:
2999: =item *
3000:
3001: Generate Page Output
3002:
3003: =item *
3004:
3005: Choice or no choice
3006:
3007: =item *
3008:
3009: Table
3010:
3011: =item *
3012:
3013: Privileges
3014:
3015: =back
3016:
3017: =cut
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