1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.269.2.34 2017/05/19 19:53:00 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 $envkey;
262: my %dcroles = ();
263: my %helpdeskroles = ();
264: my ($numdc,$numhelpdesk,$numadhoc) =
265: &check_for_adhoc(\%dcroles,\%helpdeskroles,$update,$then);
266: my $loncaparev = $r->dir_config('lonVersion');
267:
268: # ================================================================== Roles Init
269: if ($env{'form.selectrole'}) {
270:
271: my $locknum=&Apache::lonnet::get_locks();
272: if ($locknum) { return 409; }
273:
274: my $custom_adhoc;
275: if ($env{'form.newrole'}) {
276: $env{'form.'.$env{'form.newrole'}}=1;
277: # Check if this is a Domain Helpdesk or Domain Helpdesk Assistant role trying to enter a course
278: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
279: if ($helpdeskroles{$1}) {
280: $custom_adhoc = 1;
281: }
282: }
283: }
284: if ($env{'request.course.id'}) {
285: # Check if user is CC trying to select a course role
286: if ($env{'form.switchrole'}) {
287: my $switch_is_active;
288: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
289: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
290: if (!$end || $end > $now) {
291: if (!$start || $start < $update) {
292: $switch_is_active = 1;
293: }
294: }
295: }
296: unless ($switch_is_active) {
297: &adhoc_course_role($refresh,$update,$then);
298: }
299: }
300: my %temp=('logout_'.$env{'request.course.id'} => time);
301: &Apache::lonnet::put('email_status',\%temp);
302: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
303: }
304: &Apache::lonnet::appenv({"request.course.id" => '',
305: "request.course.fn" => '',
306: "request.course.uri" => '',
307: "request.course.sec" => '',
308: "request.course.tied" => '',
309: "request.course.timechecked" => '',
310: "request.role" => 'cm',
311: "request.role.adv" => $env{'user.adv'},
312: "request.role.domain" => $env{'user.domain'}});
313: # Check if Domain Helpdesk role trying to enter a course needs privs to be created
314: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)}) {
315: my $cdom = $1;
316: my $rolename = $2;
317: my $cnum = $3;
318: my $sec = $4;
319: if ($custom_adhoc) {
320: my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($cdom.'_'.$cnum,1);
321: if (ref($possroles) eq 'ARRAY') {
322: if (grep(/^\Q$rolename\E$/,@{$possroles})) {
323: if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
324: "cr/$cdom/$cdom".'-domainconfig/'.$rolename,undef,$sec)) {
325: &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time});
326: }
327: }
328: }
329: }
330: } elsif (($numdc > 0) || ($numhelpdesk > 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 or DA 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 ($numhelpdesk) {
403: # Is this an ad hoc custom role in a course/community?
404: if (my ($domain,$rolename,$coursenum,$sec) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)})) {
405: if ($helpdeskroles{$domain}) {
406: my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($domain.'_'.$coursenum,1);
407: if (ref($possroles) eq 'ARRAY') {
408: if (grep(/^\Q$rolename\E$/,@{$possroles})) {
409: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now,
410: "cr/$domain/$domain".'-domainconfig/'.$rolename,
411: undef,$sec)) {
412: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain".
413: '-domainconfig/'."$rolename.adhoc" => time});
414: }
415: } else {
416: delete($env{$envkey});
417: }
418: } else {
419: delete($env{$envkey});
420: }
421: } else {
422: delete($env{$envkey});
423: }
424: last;
425: }
426: }
427: }
428: }
429:
430: foreach $envkey (keys(%env)) {
431: next if ($envkey!~/^user\.role\./);
432: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
433: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
434: \$trolecode,\$tstatus,\$tstart,\$tend);
435: if ($env{'form.'.$trolecode}) {
436: if ($tstatus eq 'is') {
437: $where=~s/^\///;
438: my ($cdom,$cnum,$csec)=split(/\//,$where);
439: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
440: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
441: my @ids = &Apache::lonnet::current_machine_ids();
442: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
443: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
444: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
445: my ($switchserver,$switchwarning) =
446: &Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
447: $curr_reqd_hash{'internal.releaserequired'});
448: if ($switchwarning ne '' || $switchserver ne '') {
449: &Apache::loncommon::content_type($r,'text/html');
450: &Apache::loncommon::no_cache($r);
451: $r->send_http_header;
452: $r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
453: return OK;
454: }
455: }
456: }
457: }
458: # check for course groups
459: my %coursegroups = &Apache::lonnet::get_active_groups(
460: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
461: my $cgrps = join(':',keys(%coursegroups));
462:
463: # store role if recent_role list being kept
464: if ($env{'environment.recentroles'}) {
465: my %frozen_roles =
466: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
467: &Apache::lonhtmlcommon::store_recent('roles',
468: $trolecode,' ',$frozen_roles{$trolecode});
469: }
470:
471:
472: # check for keyed access
473: if (($role eq 'st') &&
474: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
475: # who is key authority?
476: my $authdom=$cdom;
477: my $authnum=$cnum;
478: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
479: ($authnum,$authdom)=
480: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
481: }
482: # check with key authority
483: unless (&Apache::lonnet::validate_access_key(
484: $env{'environment.key.'.$cdom.'_'.$cnum},
485: $authdom,$authnum)) {
486: # there is no valid key
487: if ($env{'form.newkey'}) {
488: # student attempts to register a new key
489: &Apache::loncommon::content_type($r,'text/html');
490: &Apache::loncommon::no_cache($r);
491: $r->send_http_header;
492: my $swinfo=&Apache::lonmenu::rawconfig();
493: my $start_page=&Apache::loncommon::start_page
494: ('Verifying Access Key to Unlock this Course');
495: my $end_page=&Apache::loncommon::end_page();
496: my $buttontext=&mt('Enter Course');
497: my $message=&mt('Successfully registered key');
498: my $assignresult=
499: &Apache::lonnet::assign_access_key(
500: $env{'form.newkey'},
501: $authdom,$authnum,
502: $cdom,$cnum,
503: $env{'user.domain'},
504: $env{'user.name'},
505: &mt('Assigned from [_1] at [_2] for [_3]'
506: ,$ENV{'REMOTE_ADDR'}
507: ,&Apache::lonlocal::locallocaltime()
508: ,$trolecode)
509: );
510: unless ($assignresult eq 'ok') {
511: $assignresult=~s/^error\:\s*//;
512: $message=&mt($assignresult).
513: '<br /><a href="/adm/logout">'.
514: &mt('Logout').'</a>';
515: $buttontext=&mt('Re-Enter Key');
516: }
517: $r->print(<<ENDENTEREDKEY);
518: $start_page
519: <script type="text/javascript">
520: // <![CDATA[
521: $swinfo
522: // ]]>
523: </script>
524: <form action="" method="post">
525: <input type="hidden" name="selectrole" value="1" />
526: <input type="hidden" name="$trolecode" value="1" />
527: <span class="LC_fontsize_large">$message</span><br />
528: <input type="submit" value="$buttontext" />
529: </form>
530: $end_page
531: ENDENTEREDKEY
532: return OK;
533: } else {
534: # print form to enter a new key
535: &Apache::loncommon::content_type($r,'text/html');
536: &Apache::loncommon::no_cache($r);
537: $r->send_http_header;
538: my $swinfo=&Apache::lonmenu::rawconfig();
539: my $start_page=&Apache::loncommon::start_page
540: ('Enter Access Key to Unlock this Course');
541: my $end_page=&Apache::loncommon::end_page();
542: $r->print(<<ENDENTERKEY);
543: $start_page
544: <script type="text/javascript">
545: // <![CDATA[
546: $swinfo
547: // ]]>
548: </script>
549: <form action="" method="post">
550: <input type="hidden" name="selectrole" value="1" />
551: <input type="hidden" name="$trolecode" value="1" />
552: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
553: <input type="submit" value="Enter key" />
554: </form>
555: $end_page
556: ENDENTERKEY
557: return OK;
558: }
559: }
560: }
561: &Apache::lonnet::log($env{'user.domain'},
562: $env{'user.name'},
563: $env{'user.home'},
564: "Role ".$trolecode);
565:
566: &Apache::lonnet::appenv(
567: {'request.role' => $trolecode,
568: 'request.role.domain' => $cdom,
569: 'request.course.sec' => $csec,
570: 'request.course.groups' => $cgrps});
571: my $tadv=0;
572:
573: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
574: if ($role =~ m{^\Qcr/$cdom/$cdom\E\-domainconfig/(\w+)$}) {
575: my $rolename = $1;
576: my %domdef = &Apache::lonnet::get_domain_defaults($cdom);
577: if (ref($domdef{'adhocroles'}) eq 'HASH') {
578: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
579: &Apache::lonnet::appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'}});
580: }
581: }
582: }
583: my $msg;
584: my ($furl,$ferr)=
585: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
586: unless ($ferr) {
587: unless (($env{'form.switchrole'}) ||
588: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
589: &Apache::lonnet::put('nohist_crslastlogin',
590: {$env{'user.name'}.':'.$env{'user.domain'}.
591: ':'.$csec.':'.$role => $now},$cdom,$cnum);
592: }
593: my ($feeds,$syllabus_time);
594: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
595: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
596: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
597: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
598: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
599: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
600: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
601: $syllabus_time = $syllabus{'uploaded.lastmodified'};
602: if ($syllabus_time) {
603: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
604: }
605: }
606: }
607: }
608: if (($env{'form.orgurl'}) &&
609: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
610: ($env{'form.orgurl'} ne '/adm/roles')) {
611: my $dest=$env{'form.orgurl'};
612: if ($env{'form.symb'}) {
613: if ($dest =~ /\?/) {
614: $dest .= '&';
615: } else {
616: $dest .= '?';
617: }
618: $dest .= 'symb='.$env{'form.symb'};
619: }
620: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
621: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
622: if (($ferr) && ($tadv)) {
623: &error_page($r,$ferr,$dest);
624: } else {
625: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
626: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
627: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
628: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
629: $cdom.'_'.$cnum);
630: }
631: }
632: $r->internal_redirect($dest);
633: }
634: return OK;
635: } else {
636: if (!$env{'request.course.id'}) {
637: &Apache::lonnet::appenv(
638: {"request.course.id" => $cdom.'_'.$cnum});
639: $furl='/adm/roles?tryagain=1';
640: $msg='<p><span class="LC_error">'
641: .&mt('Could not initialize [_1] at this time.',
642: $env{'course.'.$cdom.'_'.$cnum.'.description'})
643: .'</span></p>'
644: .'<p>'.&mt('Please try again.').'</p>'
645: .'<p>'.$ferr.'</p>';
646: }
647: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
648: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
649:
650: if (($ferr) && ($tadv)) {
651: &error_page($r,$ferr,$furl);
652: } else {
653: # Check to see if the user is a CC entering a course
654: # for the first time
655: if ((($role eq 'cc') || ($role eq 'co'))
656: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
657: $furl = "/adm/helper/course.initialization.helper";
658: # Send the user to the course they selected
659: } elsif ($env{'request.course.id'}) {
660: my ($dest,$destsymb,$checkenc);
661: $dest = $env{'form.destinationurl'};
662: $destsymb = $env{'form.destsymb'};
663: if ($dest ne '') {
664: if ($env{'form.switchrole'}) {
665: if ($destsymb ne '') {
666: if ($destsymb !~ m{^/enc/}) {
667: unless ($env{'request.role.adv'}) {
668: $checkenc = 1;
669: }
670: }
671: }
672: if ($dest =~ m{^/enc/}) {
673: if ($env{'request.role.adv'}) {
674: $dest = &Apache::lonenc::unencrypted($dest);
675: if ($destsymb eq '') {
676: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
677: $destsymb = &unescape($destsymb);
678: }
679: }
680: } else {
681: if ($destsymb eq '') {
682: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
683: $destsymb = &unescape($destsymb);
684: }
685: unless ($env{'request.role.adv'}) {
686: $checkenc = 1;
687: }
688: }
689: if (($checkenc) && ($destsymb ne '')) {
690: my ($encstate,$unencsymb,$res);
691: $unencsymb = &Apache::lonnet::symbclean($destsymb);
692: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
693: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
694: if ($encstate) {
695: if (($dest ne '') && ($dest !~ m{^/enc/})) {
696: $dest=&Apache::lonenc::encrypted($dest);
697: }
698: }
699: }
700: }
701: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
702: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
703: my $esc_symb = &escape($destsymb);
704: $dest .= '?symb='.$esc_symb;
705: }
706: }
707: &redirect_user($r, &mt('Entering [_1]',
708: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
709: $dest, $msg);
710: return OK;
711: }
712: if (&Apache::lonnet::allowed('whn',
713: $env{'request.course.id'})
714: || &Apache::lonnet::allowed('whn',
715: $env{'request.course.id'}.'/'
716: .$env{'request.course.sec'})
717: ) {
718: my $startpage = &courseloadpage($env{'request.course.id'});
719: unless ($startpage eq 'firstres') {
720: $msg = &mt('Entering [_1] ...',
721: $env{'course.'.$env{'request.course.id'}.'.description'});
722: &redirect_user($r, &mt('New in course'),
723: '/adm/whatsnew?refpage=start', $msg);
724: return OK;
725: }
726: }
727: }
728: # Are we allowed to look at the first resource?
729: my $access;
730: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
731: # If it's an external resource,
732: # strip off the symb argument and possible query
733: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
734: # Unencode $symb
735: $symb = &unescape($symb);
736: # Then check for permission
737: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
738: # For other resources just check for permission
739: } else {
740: $access = &Apache::lonnet::allowed('bre',$furl);
741: }
742: if (!$access) {
743: $furl = &Apache::lonpageflip::first_accessible_resource();
744: } elsif ($access eq 'B') {
745: $furl = '/adm/navmaps?showOnlyHomework=1';
746: }
747: $msg = &mt('Entering [_1] ...',
748: $env{'course.'.$cdom.'_'.$cnum.'.description'});
749: &redirect_user($r, &mt('Entering [_1]',
750: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
751: $furl, $msg);
752: }
753: return OK;
754: }
755: }
756: #
757: # Send the user to the construction space they selected
758: if ($role =~ /^(au|ca|aa)$/) {
759: my $redirect_url = '/priv/';
760: if ($role eq 'au') {
761: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
762: } else {
763: $redirect_url .= $where;
764: }
765: $redirect_url .= '/';
766: &redirect_user($r,&mt('Entering Authoring Space'),
767: $redirect_url);
768: return OK;
769: }
770: if ($role eq 'dc') {
771: my $redirect_url = '/adm/menu/';
772: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
773: $redirect_url);
774: return OK;
775: }
776: if ($role eq 'dh') {
777: my $redirect_url = '/adm/menu/';
778: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
779: $redirect_url);
780: return OK;
781: }
782: if ($role eq 'da') {
783: my $redirect_url = '/adm/menu/';
784: &redirect_user($r,&mt('Loading Domain Helpdesk Assistant Menu'),
785: $redirect_url);
786: return OK;
787: }
788: if ($role eq 'sc') {
789: my $redirect_url = '/adm/grades?command=scantronupload';
790: &redirect_user($r,&mt('Loading Data Upload Page'),
791: $redirect_url);
792: return OK;
793: }
794: }
795: }
796: }
797: }
798:
799:
800: # =============================================================== No Roles Init
801:
802: &Apache::loncommon::content_type($r,'text/html');
803: &Apache::loncommon::no_cache($r);
804: $r->send_http_header;
805: return OK if $r->header_only;
806:
807: my $crumbtext = 'User Roles';
808: my $pagetitle = 'My Roles';
809: my $recent = &mt('Recent Roles');
810: my $standby = &mt('Role selected. Please stand by.');
811: my $show_course=&Apache::loncommon::show_course();
812: if ($show_course) {
813: $crumbtext = 'Courses';
814: $pagetitle = 'My Courses';
815: $recent = &mt('Recent Courses');
816: $standby = &mt('Course selected. Please stand by.');
817: }
818: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
819:
820: my %roles_in_env;
821: my $showcount = &roles_from_env(\%roles_in_env,$update);
822:
823: my $swinfo=&Apache::lonmenu::rawconfig();
824: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
825: my $cattype = 'std';
826: if ($domdefs{'catauth'}) {
827: $cattype = $domdefs{'catauth'};
828: }
829: my $funcs = &get_roles_functions($showcount,$cattype);
830: my $crumbsright;
831: if ($env{'browser.mobile'}) {
832: $crumbsright = $funcs;
833: undef($funcs);
834: }
835: my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
836: bread_crumbs_component=>$crumbsright});
837: &js_escape(\$standby);
838: 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 />';
839:
840: $r->print(<<ENDHEADER);
841: $start_page
842: $funcs
843: <noscript>
844: $noscript
845: </noscript>
846: <script type="text/javascript">
847: // <![CDATA[
848: $swinfo
849: window.focus();
850:
851: active=true;
852:
853: function enterrole (thisform,rolecode,buttonname) {
854: if (active) {
855: active=false;
856: document.title='$standby';
857: window.status='$standby';
858: thisform.newrole.value=rolecode;
859: thisform.submit();
860: } else {
861: alert('$standby');
862: }
863: }
864:
865: function rolesView (caller) {
866: if ((caller == 'showall') || (caller == 'noshowall')) {
867: document.rolechoice.display.value = caller;
868: } else {
869: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
870: (caller == 'queued')) {
871: document.rolechoice.state.value = caller;
872: }
873: }
874: document.rolechoice.selectrole.value='';
875: document.rolechoice.submit();
876: }
877:
878: // ]]>
879: </script>
880: ENDHEADER
881:
882: # ------------------------------------------ Get Error Message from Environment
883:
884: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
885: if ($env{'user.error.msg'}) {
886: $r->log_reason(
887: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
888: }
889:
890: # ------------------------------------------------- Can this user re-init, etc?
891:
892: my $advanced=$env{'user.adv'};
893: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
894: my $tryagain=$env{'form.tryagain'};
895: my $reinit=$env{'user.reinit'};
896: delete $env{'user.reinit'};
897:
898: # -------------------------------------------------------- Generate Page Output
899: # --------------------------------------------------------------- Error Header?
900: if ($error) {
901: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
902: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
903: if ($priv ne '') {
904: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
905: }
906: if ($fn ne '') {
907: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
908: }
909: if ($msg ne '') {
910: $r->print(&mt('Action : ').$msg."\n");
911: }
912: $r->print("</pre><hr />");
913: my $url=$fn;
914: my $last;
915: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
916: &GDBM_READER(),0640)) {
917: $last=$hash{'last_known'};
918: untie(%hash);
919: }
920: if ($last) { $fn.='?symb='.&escape($last); }
921:
922: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
923: &Apache::lonenc::check_encrypt($fn));
924: } else {
925: if ($env{'user.error.msg'}) {
926: if ($reinit) {
927: $r->print(
928: '<h3><span class="LC_error">'.
929: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
930: } else {
931: $r->print(
932: '<h3><span class="LC_error">'.
933: &mt('You need to choose another user role or enter a specific course or community for this function.').
934: '</span></h3>');
935: }
936: }
937: }
938: if ($nochoose) {
939: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
940: &mt('This action is currently not authorized.').'</span>'.
941: &Apache::loncommon::end_page());
942: return OK;
943: } else {
944: if ($updateresult || $reqauthor || $hotlist) {
945: my $showresult = '<div>';
946: if ($updateresult) {
947: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
948: }
949: if ($reqauthor) {
950: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
951: }
952: if ($hotlist) {
953: $showresult .= $hotlist;
954: }
955: $showresult .= '</div>';
956: $r->print($showresult);
957: } elsif ($env{'form.state'} eq 'queued') {
958: $r->print(&get_queued());
959: }
960: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
961: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
962: }
963: my $display = ($env{'form.display'} =~ /^(showall)$/);
964: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
965: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
966: $r->print('<input type="hidden" name="selectrole" value="1" />');
967: $r->print('<input type="hidden" name="newrole" value="" />');
968: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
969: $r->print('<input type="hidden" name="state" value="" />');
970: }
971: $r->rflush();
972:
973: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
974: my ($countactive,$countfuture,$inrole,$possiblerole) =
975: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
976: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
977: $refresh = $now;
978: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
979: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'})) {
980: if ($countactive > 0) {
981: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
982: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
983: $r->print(
984: '<p>'
985: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
986: .' to view all [_5] LON-CAPA courses and communities.'
987: ,'<b>'
988: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
989: ,'</a>'
990: ,'</b>'
991: ,'"'.$domdesc.'"')
992: .'<br />'
993: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
994: .' you may be able to enroll if self-enrollment is permitted.'
995: ,'<b>','</b>')
996: .'</p>'
997: );
998: }
999: }
1000:
1001: # No active roles
1002: if ($countactive==0) {
1003: &requestcourse_advice($r,$cattype,$inrole);
1004: $r->print('</form>');
1005: if ($countfuture) {
1006: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1007: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1008: $nochoose);
1009: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1010: \%roletext,$update,$then);
1011: my $tremark='';
1012: my $tbg;
1013: if ($env{'request.role'} eq 'cm') {
1014: $tbg="LC_roles_selected";
1015: $tremark=&mt('Currently selected.').' ';
1016: } else {
1017: $tbg="LC_roles_is";
1018: }
1019: $r->print(&Apache::loncommon::start_data_table_row()
1020: .'<td class="'.$tbg.'"> </td>'
1021: .'<td colspan="3">'
1022: .&mt('No role specified')
1023: .'</td>'
1024: .'<td>'.$tremark.' </td>'
1025: .&Apache::loncommon::end_data_table_row()
1026: );
1027:
1028: $r->print(&Apache::loncommon::end_data_table());
1029: }
1030: $r->print(&Apache::loncommon::end_page());
1031: return OK;
1032: }
1033: # ----------------------------------------------------------------------- Table
1034:
1035: if (($numdc > 0) || (($numhelpdesk > 0) && ($numadhoc > 0))) {
1036: $r->print(&coursepick_jscript().
1037: &Apache::loncommon::coursebrowser_javascript());
1038: }
1039: if ($numdc > 0) {
1040: $r->print(&Apache::loncommon::authorbrowser_javascript());
1041: }
1042:
1043: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1044: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1045: }
1046: if ($env{'form.destinationurl'}) {
1047: $r->print('<input type="hidden" name="destinationurl" value="'.
1048: $env{'form.destinationurl'}.'" />');
1049: if ($env{'form.destsymb'} ne '') {
1050: $r->print('<input type="hidden" name="destsymb" value="'.
1051: $env{'form.destsymb'}.'" />');
1052: }
1053: }
1054:
1055: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1056: if ($env{'environment.recentroles'}) {
1057: my %recent_roles =
1058: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1059: my $output='';
1060: foreach my $role (sort(keys(%recent_roles))) {
1061: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1062: $output.= &Apache::loncommon::start_data_table_row().
1063: $roletext{'user.role.'.$role}->[0].
1064: &Apache::loncommon::end_data_table_row();
1065: if ($roletext{'user.role.'.$role}->[1] ne '') {
1066: $output .= &Apache::loncommon::continue_data_table_row().
1067: $roletext{'user.role.'.$role}->[1].
1068: &Apache::loncommon::end_data_table_row();
1069: }
1070: if ($role =~ m{^dc\./($match_domain)/$}
1071: && $dcroles{$1}) {
1072: $output .= &adhoc_roles_row($1,'recent');
1073: } elsif ($role =~ m{^(dh|da)\./($match_domain)/$}) {
1074: $output .= &adhoc_customroles_row($1,$2,'recent',$update,$then);
1075: }
1076: } elsif ($numdc > 0) {
1077: unless ($role =~/^error\:/) {
1078: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1079: if ($roletext) {
1080: $output.= &Apache::loncommon::start_data_table_row().
1081: $roletext.
1082: &Apache::loncommon::end_data_table_row();
1083: if ($role_text_end) {
1084: $output .= &Apache::loncommon::continue_data_table_row().
1085: $role_text_end.
1086: &Apache::loncommon::end_data_table_row();
1087: }
1088: }
1089: }
1090: }
1091: }
1092: if ($output) {
1093: $r->print(&Apache::loncommon::start_data_table_empty_row()
1094: .'<td align="center" colspan="5">'
1095: .$recent
1096: .'</td>'
1097: .&Apache::loncommon::end_data_table_empty_row()
1098: );
1099: $r->print($output);
1100: $doheaders ++;
1101: }
1102: }
1103: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext,$update,$then);
1104: if ($countactive > 1) {
1105: my $tremark='';
1106: my $tbg;
1107: if ($env{'request.role'} eq 'cm') {
1108: $tbg="LC_roles_selected";
1109: $tremark=&mt('Currently selected.').' ';
1110: } else {
1111: $tbg="LC_roles_is";
1112: }
1113: $r->print(&Apache::loncommon::start_data_table_row());
1114: unless ($nochoose) {
1115: if ($env{'request.role'} ne 'cm') {
1116: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1117: &mt('Select').'" name="cm" /></td>');
1118: } else {
1119: $r->print('<td class="'.$tbg.'"> </td>');
1120: }
1121: }
1122: $r->print('<td colspan="3">'
1123: .&mt('No role specified')
1124: .'</td>'
1125: .'<td>'.$tremark.' </td>'
1126: .&Apache::loncommon::end_data_table_row()
1127: );
1128: }
1129: $r->print(&Apache::loncommon::end_data_table());
1130: unless ($nochoose) {
1131: $r->print("</form>\n");
1132: }
1133: # ------------------------------------------------------------ Privileges Info
1134: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1135: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1136: $r->print(&privileges_info());
1137: }
1138: my $announcements = &Apache::lonnet::getannounce();
1139: $r->print(
1140: '<br />'.
1141: '<h2>'.&mt('Announcements').'</h2>'.
1142: $announcements
1143: ) unless (!$announcements);
1144: if ($advanced) {
1145: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1146: $r->print('<p><small><i>'
1147: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1148: .'</i></small></p>');
1149: }
1150: $r->print(&Apache::loncommon::end_page());
1151: return OK;
1152: }
1153:
1154: sub roles_from_env {
1155: my ($roleshash,$update) = @_;
1156: my $count = 0;
1157: if (ref($roleshash) eq 'HASH') {
1158: foreach my $envkey (keys(%env)) {
1159: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1160: next if ($1 eq 'gr');
1161: $roleshash->{$envkey} = $env{$envkey};
1162: my ($start,$end) = split(/\./,$env{$envkey});
1163: unless ($end && $end<$update) {
1164: $count ++;
1165: }
1166: }
1167: }
1168: }
1169: return $count;
1170: }
1171:
1172: sub gather_roles {
1173: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1174: $timezones,$loncaparev) = @_;
1175: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1176: my $advanced = $env{'user.adv'};
1177: my $tryagain = $env{'form.tryagain'};
1178: my @ids = &Apache::lonnet::current_machine_ids();
1179: if (ref($roles_in_env) eq 'HASH') {
1180: my %adhocdesc;
1181: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1182: my $button = 1;
1183: my $switchserver='';
1184: my $switchwarning;
1185: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1186: $tend,$tremark,$tstatus,$tpstart,$tpend);
1187: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1188: \$trolecode,\$tstatus,\$tstart,\$tend);
1189: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1190: $tremark='';
1191: $tpstart=' ';
1192: $tpend=' ';
1193: if ($env{'request.role'} eq $trolecode) {
1194: $tstatus='selected';
1195: }
1196: my $tbg;
1197: if (($tstatus eq 'is')
1198: || ($tstatus eq 'selected')
1199: || ($tstatus eq 'future')
1200: || ($env{'form.display'} eq 'showall')) {
1201: my $timezone = &role_timezone($where,$timezones);
1202: if ($tstart) {
1203: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1204: }
1205: if ($tend) {
1206: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1207: }
1208: if ($tstatus eq 'is') {
1209: $tbg='LC_roles_is';
1210: $possiblerole=$trolecode;
1211: $countactive++;
1212: } elsif ($tstatus eq 'future') {
1213: $tbg='LC_roles_future';
1214: $button=0;
1215: $futureroles->{$trolecode} = $tstart.':'.$tend;
1216: $countfuture ++;
1217: } elsif ($tstatus eq 'expired') {
1218: $tbg='LC_roles_expired';
1219: $button=0;
1220: } elsif ($tstatus eq 'will_not') {
1221: $tbg='LC_roles_will_not';
1222: $tremark.=&mt('Expired after logout.').' ';
1223: } elsif ($tstatus eq 'selected') {
1224: $tbg='LC_roles_selected';
1225: $inrole=1;
1226: $countactive++;
1227: $tremark.=&mt('Currently selected.').' ';
1228: }
1229: my $trole;
1230: if ($role =~ /^cr\//) {
1231: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1232: unless ($rauthor eq $rdomain.'-domainconfig') {
1233: if ($tremark) { $tremark.='<br />'; }
1234: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1235: }
1236: }
1237: $trole=Apache::lonnet::plaintext($role);
1238: my $ttype;
1239: my $twhere;
1240: my ($tdom,$trest,$tsection)=
1241: split(/\//,Apache::lonnet::declutter($where));
1242: # First, Co-Authorship roles
1243: if (($role eq 'ca') || ($role eq 'aa')) {
1244: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1245: my $allowed=0;
1246: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1247: if (!$allowed) {
1248: $button=0;
1249: $switchserver='otherserver='.$home.'&role='.$trolecode;
1250: }
1251: #next if ($home eq 'no_host');
1252: $home = &Apache::lonnet::hostname($home);
1253: $ttype='Authoring Space';
1254: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1255: ': '.$tdom.'<br />'.
1256: ' '.&mt('Server').': '.$home;
1257: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1258: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1259: $sortkey=$role."$trest:$tdom";
1260: } elsif ($role eq 'au') {
1261: # Authors
1262: my $home = &Apache::lonnet::homeserver
1263: ($env{'user.name'},$env{'user.domain'});
1264: my $allowed=0;
1265: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1266: if (!$allowed) {
1267: $button=0;
1268: $switchserver='otherserver='.$home.'&role='.$trolecode;
1269: }
1270: #next if ($home eq 'no_host');
1271: $home = &Apache::lonnet::hostname($home);
1272: $ttype='Authoring Space';
1273: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1274: ': '.$home;
1275: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1276: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1277: $sortkey=$role;
1278: } elsif ($trest) {
1279: my $tcourseid=$tdom.'_'.$trest;
1280: $ttype = &Apache::loncommon::course_type($tcourseid);
1281: if ($role !~ /^cr/) {
1282: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1283: } elsif ($role =~ m{^\Qcr/$tdom/$tdom\E\-domainconfig/(\w+)$}) {
1284: my $rolename = $1;
1285: my $desc;
1286: if (ref($adhocdesc{$tdom}) eq 'HASH') {
1287: $desc = $adhocdesc{$tdom}{$rolename};
1288: } else {
1289: my %domdef = &Apache::lonnet::get_domain_defaults($tdom);
1290: if (ref($domdef{'adhocroles'}) eq 'HASH') {
1291: foreach my $rolename (sort(keys(%{$domdef{'adhocroles'}}))) {
1292: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
1293: $adhocdesc{$tdom}{$rolename} = $domdef{'adhocroles'}{$rolename}{'desc'};
1294: $desc = $adhocdesc{$tdom}{$rolename};
1295: }
1296: }
1297: }
1298: }
1299: if ($desc ne '') {
1300: $trole = $desc;
1301: } else {
1302: $trole = &mt('Helpdesk[_1]',' '.$rolename);
1303: }
1304: } else {
1305: $trole = (split(/\//,$role,4))[-1];
1306: }
1307: if ($env{'course.'.$tcourseid.'.description'}) {
1308: my $home=$env{'course.'.$tcourseid.'.home'};
1309: $twhere=$env{'course.'.$tcourseid.'.description'};
1310: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1311: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1312: unless ($twhere eq &mt('Currently not available')) {
1313: $twhere.=' <span class="LC_fontsize_small">'.
1314: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1315: '</span>';
1316: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1317: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1318: if ($required ne '') {
1319: ($switchserver,$switchwarning) =
1320: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1321: if ($switchserver || $switchwarning) {
1322: $button = 0;
1323: }
1324: }
1325: }
1326: }
1327: } else {
1328: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1329: if (%newhash) {
1330: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1331: "\0".$envkey;
1332: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1333: ' <span class="LC_fontsize_small">'.
1334: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1335: '</span>';
1336: $ttype = $newhash{'type'};
1337: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1338: my $home = $newhash{'home'};
1339: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1340: my $required = $newhash{'internal.releaserequired'};
1341: if ($required ne '') {
1342: ($switchserver,$switchwarning) =
1343: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1344: if ($switchserver || $switchwarning) {
1345: $button = 0;
1346: }
1347: }
1348: }
1349: } else {
1350: $twhere=&mt('Currently not available');
1351: $env{'course.'.$tcourseid.'.description'}=$twhere;
1352: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1353: $ttype = 'Unavailable';
1354: }
1355: }
1356: if ($tsection) {
1357: $twhere.='<br />'.&mt('Section').': '.$tsection;
1358: }
1359: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1360: } elsif ($tdom) {
1361: $ttype='Domain';
1362: $twhere=$tdom;
1363: $sortkey=$role.$twhere;
1364: } else {
1365: $ttype='System';
1366: $twhere=&mt('system wide');
1367: $sortkey=$role.$twhere;
1368: }
1369: ($role_text,$role_text_end) =
1370: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1371: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1372: $tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning);
1373: $roletext->{$envkey}=[$role_text,$role_text_end];
1374: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1375: $sortrole->{$sortkey}=$envkey;
1376: $roleclass->{$envkey}=$ttype;
1377: }
1378: }
1379: }
1380: return ($countactive,$countfuture,$inrole,$possiblerole);
1381: }
1382:
1383: sub role_timezone {
1384: my ($where,$timezones) = @_;
1385: my $timezone;
1386: if (ref($timezones) eq 'HASH') {
1387: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1388: my $cdom = $1;
1389: my $cnum = $2;
1390: if ($cdom && $cnum) {
1391: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1392: my $tz;
1393: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1394: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1395: } else {
1396: my %timehash =
1397: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1398: $tz = $timehash{'timezone'};
1399: }
1400: if ($tz eq '') {
1401: if (!exists($timezones->{$cdom})) {
1402: my %domdefaults =
1403: &Apache::lonnet::get_domain_defaults($cdom);
1404: if ($domdefaults{'timezone_def'} eq '') {
1405: $timezones->{$cdom} = 'local';
1406: } else {
1407: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1408: }
1409: }
1410: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1411: } else {
1412: $timezones->{$cdom.'_'.$cnum} =
1413: &Apache::lonlocal::gettimezone($tz);
1414: }
1415: }
1416: $timezone = $timezones->{$cdom.'_'.$cnum};
1417: }
1418: } else {
1419: my ($tdom) = ($where =~ m{^/($match_domain)});
1420: if ($tdom) {
1421: if (!exists($timezones->{$tdom})) {
1422: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1423: if ($domdefaults{'timezone_def'} eq '') {
1424: $timezones->{$tdom} = 'local';
1425: } else {
1426: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1427: }
1428: }
1429: $timezone = $timezones->{$tdom};
1430: }
1431: }
1432: if ($timezone eq 'local') {
1433: $timezone = undef;
1434: }
1435: }
1436: return $timezone;
1437: }
1438:
1439: sub roletable_headers {
1440: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1441: my $doheaders;
1442: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1443: $r->print('<br />'
1444: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1445: .&Apache::loncommon::start_data_table_header_row()
1446: );
1447: if (!$nochoose) { $r->print('<th> </th>'); }
1448: $r->print('<th>'.&mt('User Role').'</th>'
1449: .'<th>'.&mt('Extent').'</th>'
1450: .'<th>'.&mt('Start').'</th>'
1451: .'<th>'.&mt('End').'</th>'
1452: .&Apache::loncommon::end_data_table_header_row()
1453: );
1454: $doheaders=-1;
1455: my @roletypes = &roletypes();
1456: foreach my $type (@roletypes) {
1457: my $haverole=0;
1458: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1459: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1460: $haverole=1;
1461: }
1462: }
1463: if ($haverole) { $doheaders++; }
1464: }
1465: }
1466: return $doheaders;
1467: }
1468:
1469: sub roletypes {
1470: my @types = ('Domain','Authoring Space','Course','Community','Unavailable','System');
1471: return @types;
1472: }
1473:
1474: sub print_rolerows {
1475: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext,$update,$then) = @_;
1476: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1477: my @types = &roletypes();
1478: foreach my $type (@types) {
1479: my $output;
1480: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1481: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1482: if (ref($roletext) eq 'HASH') {
1483: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1484: $output.= &Apache::loncommon::start_data_table_row().
1485: $roletext->{$sortrole->{$which}}->[0].
1486: &Apache::loncommon::end_data_table_row();
1487: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1488: $output .= &Apache::loncommon::continue_data_table_row().
1489: $roletext->{$sortrole->{$which}}->[1].
1490: &Apache::loncommon::end_data_table_row();
1491: }
1492: }
1493: if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
1494: if (ref($dcroles) eq 'HASH') {
1495: if ($dcroles->{$1}) {
1496: $output .= &adhoc_roles_row($1,'');
1497: }
1498: }
1499: } elsif ($sortrole->{$which} =~ m{^user\.role\.(dh|da)\./($match_domain)/}) {
1500: $output .= &adhoc_customroles_row($1,$2,'',$update,$then);
1501: }
1502: }
1503: }
1504: }
1505: if ($output) {
1506: if ($doheaders > 0) {
1507: $r->print(&Apache::loncommon::start_data_table_empty_row()
1508: .'<td align="center" colspan="5">'
1509: .&mt($type)
1510: .'</td>'
1511: .&Apache::loncommon::end_data_table_empty_row()
1512: );
1513: }
1514: $r->print($output);
1515: }
1516: }
1517: }
1518: }
1519:
1520: sub findcourse_advice {
1521: my ($r,$cattype) = @_;
1522: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1523: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1524: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1525: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1526: <ul>
1527: <li>'.&mt('The course has yet to be created.').'</li>
1528: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1529: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1530: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1531: <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>
1532: </ul>');
1533: } else {
1534: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1535: }
1536: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1537: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1538: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1539: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1540: &Apache::loncoursequeueadmin::queued_selfenrollment());
1541: }
1542: return;
1543: }
1544:
1545: sub requestcourse_advice {
1546: my ($r,$cattype,$inrole) = @_;
1547: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1548: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1549: my (%can_request,%request_doms,$output);
1550: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1551: if (keys(%request_doms) > 0) {
1552: my ($types,$typename) = &Apache::loncommon::course_types();
1553: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1554: my (@reqdoms,@reqtypes);
1555: foreach my $type (sort(keys(%request_doms))) {
1556: push(@reqtypes,$type);
1557: if (ref($request_doms{$type}) eq 'ARRAY') {
1558: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1559: $output .=
1560: '<li>'
1561: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1562: '<i>',
1563: '</i>',
1564: '<b>'.$domstr.'</b>')
1565: .'</li>';
1566: foreach my $dom (@{$request_doms{$type}}) {
1567: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1568: push(@reqdoms,$dom);
1569: }
1570: }
1571: }
1572: }
1573: my @showtypes;
1574: foreach my $type (@{$types}) {
1575: if (grep(/^\Q$type\E$/,@reqtypes)) {
1576: push(@showtypes,$type);
1577: }
1578: }
1579: my $requrl = '/adm/requestcourse';
1580: if (@reqdoms == 1) {
1581: $requrl .= '?showdom='.$reqdoms[0];
1582: }
1583: if (@showtypes > 0) {
1584: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1585: }
1586: if (@reqdoms == 1 || @showtypes > 0) {
1587: $requrl .= '&state=crstype&action=new';
1588: }
1589: if ($output) {
1590: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1591: '<p>'.
1592: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1593: '<ul>'.
1594: $output.
1595: '</ul>'.
1596: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1597: '<a href="'.$requrl.'">','</a>').
1598: '</p>');
1599: }
1600: }
1601: } elsif (!$env{'user.adv'}) {
1602: if ($inrole) {
1603: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1604: } else {
1605: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1606: }
1607: &findcourse_advice($r,$cattype);
1608: }
1609: return;
1610: }
1611:
1612: sub privileges_info {
1613: my ($which) = @_;
1614: my $output;
1615:
1616: $which ||= $env{'request.role'};
1617:
1618: foreach my $envkey (sort(keys(%env))) {
1619: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1620:
1621: my $where=$1;
1622: my $ttype;
1623: my $twhere;
1624: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1625: if ($trest) {
1626: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1627: $ttype='Authoring Space';
1628: $twhere='User: '.$trest.', Domain: '.$tdom;
1629: } else {
1630: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1631: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1632: if ($tsec) {
1633: my $sec_type = 'Section';
1634: if (exists($env{"user.role.gr.$where"})) {
1635: $sec_type = 'Group';
1636: }
1637: $twhere.=' ('.$sec_type.': '.$tsec.')';
1638: }
1639: }
1640: } elsif ($tdom) {
1641: $ttype='Domain';
1642: $twhere=$tdom;
1643: } else {
1644: $ttype='System';
1645: $twhere='/';
1646: }
1647: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1648: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1649: next if (!$priv);
1650:
1651: my ($prv,$restr)=split(/\&/,$priv);
1652: my $trestr='';
1653: if ($restr ne 'F') {
1654: $trestr.=' ('.
1655: join(', ',
1656: map { &Apache::lonnet::plaintext($_) }
1657: (split('',$restr))).') ';
1658: }
1659: $output .= "\n\t".
1660: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1661: }
1662: $output .= "\n".'</ul>';
1663: }
1664: return $output;
1665: }
1666:
1667: sub build_roletext {
1668: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
1669: $tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_;
1670: my ($roletext,$roletext_end,$poss_adhoc);
1671: if ($trolecode =~ m/^d(c|h|a)\./) {
1672: $poss_adhoc = 1;
1673: }
1674: my $rowspan=($poss_adhoc) ? ''
1675: : ' rowspan="2" ';
1676:
1677: unless ($nochoose) {
1678: my $buttonname=$trolecode;
1679: $buttonname=~s/\W//g;
1680: if (!$button) {
1681: if ($switchserver) {
1682: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1683: .'<a href="/adm/switchserver?'.$switchserver.'">'
1684: .&mt('Switch Server')
1685: .'</a></td>';
1686: } else {
1687: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1688: }
1689: if ($switchwarning) {
1690: if ($tremark eq '') {
1691: $tremark = $switchwarning;
1692: } else {
1693: $tremark .= '<br />'.$switchwarning;
1694: }
1695: }
1696: } elsif ($tstatus eq 'is') {
1697: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1698: '<input name="'.$buttonname.'" type="button" value="'.
1699: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1700: $trolecode."','".$buttonname.'\');" /></td>';
1701: } elsif ($tryagain) {
1702: $roletext.=
1703: '<td'.$rowspan.' class="'.$tbg.'">'.
1704: '<input name="'.$buttonname.'" type="button" value="'.
1705: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1706: $trolecode."','".$buttonname.'\');" /></td>';
1707: } elsif ($advanced) {
1708: $roletext.=
1709: '<td'.$rowspan.' class="'.$tbg.'">'.
1710: '<input name="'.$buttonname.'" type="button" value="'.
1711: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1712: $trolecode."','".$buttonname.'\');" /></td>';
1713: } elsif ($reinit) {
1714: $roletext.=
1715: '<td'.$rowspan.' class="'.$tbg.'">'.
1716: '<input name="'.$buttonname.'" type="button" value="'.
1717: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1718: $trolecode."','".$buttonname.'\');" /></td>';
1719: } else {
1720: $roletext.=
1721: '<td'.$rowspan.' class="'.$tbg.'">'.
1722: '<input name="'.$buttonname.'" type="button" value="'.
1723: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1724: $trolecode."','".$buttonname.'\');" /></td>';
1725: }
1726: }
1727: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1728: $tremark.=&Apache::lonannounce::showday(time,1,
1729: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1730: }
1731: $roletext.='<td>'.$trole.'</td>'
1732: .'<td>'.$twhere.'</td>'
1733: .'<td>'.$tpstart.'</td>'
1734: .'<td>'.$tpend.'</td>';
1735: unless ($poss_adhoc) {
1736: $roletext_end = '<td colspan="4">'.
1737: $tremark.' '.
1738: '</td>';
1739: }
1740: return ($roletext,$roletext_end);
1741: }
1742:
1743: sub check_author_homeserver {
1744: my ($uname,$udom)=@_;
1745: if (($uname eq '') || ($udom eq '')) {
1746: return ('fail','');
1747: }
1748: my $home = &Apache::lonnet::homeserver($uname,$udom);
1749: if (&Apache::lonnet::host_domain($home) ne $udom) {
1750: return ('fail',$home);
1751: }
1752: my @ids=&Apache::lonnet::current_machine_ids();
1753: if (grep(/^\Q$home\E$/,@ids)) {
1754: return ('ok',$home);
1755: } else {
1756: return ('switchserver',$home);
1757: }
1758: }
1759:
1760: sub check_for_adhoc {
1761: my ($dcroles,$helpdeskroles,$update,$then) = @_;
1762: my $numdc = 0;
1763: my $numhelpdesk = 0;
1764: my $numadhoc = 0;
1765: my $num_custom_adhoc = 0;
1766: if (($env{'user.adv'}) || ($env{'user.rar'})) {
1767: foreach my $envkey (sort(keys(%env))) {
1768: if ($envkey=~/^user\.role\.(dc|dh|da)\.\/($match_domain)\/$/) {
1769: my $role = $1;
1770: my $roledom = $2;
1771: my $liverole = 1;
1772: my ($tstart,$tend)=split(/\./,$env{$envkey});
1773: my $limit = $update;
1774: if ($env{'request.role'} eq "$role./$roledom/") {
1775: $limit = $then;
1776: }
1777: if ($tstart && $tstart>$limit) { $liverole = 0; }
1778: if ($tend && $tend <$limit) { $liverole = 0; }
1779: if ($liverole) {
1780: if ($role eq 'dc') {
1781: $dcroles->{$roledom} = $envkey;
1782: $numdc++;
1783: } else {
1784: $helpdeskroles->{$roledom} = $envkey;
1785: my %domdefaults = &Apache::lonnet::get_domain_defaults($roledom);
1786: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
1787: if (keys(%{$domdefaults{'adhocroles'}})) {
1788: $numadhoc ++;
1789: }
1790: }
1791: $numhelpdesk++;
1792: }
1793: }
1794: }
1795: }
1796: }
1797: return ($numdc,$numhelpdesk,$numadhoc);
1798: }
1799:
1800: sub adhoc_course_role {
1801: my ($refresh,$update,$then) = @_;
1802: my ($cdom,$cnum,$crstype);
1803: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1804: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1805: $crstype = &Apache::loncommon::course_type();
1806: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1807: my $setprivs;
1808: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1809: $setprivs = 1;
1810: } else {
1811: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1812: if (($start && ($start>$refresh || $start == -1)) ||
1813: ($end && $end<$update)) {
1814: $setprivs = 1;
1815: }
1816: }
1817: unless ($setprivs) {
1818: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1819: $setprivs = 1;
1820: }
1821: }
1822: if ($setprivs) {
1823: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1824: my $role = $1;
1825: my $custom_role = $2;
1826: my $usec = $3;
1827: if ($role eq 'cr') {
1828: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1829: $role .= $custom_role;
1830: } else {
1831: return;
1832: }
1833: }
1834: my (%userroles,%newrole,%newgroups,%group_privs);
1835: my %cgroups =
1836: &Apache::lonnet::get_active_groups($env{'user.domain'},
1837: $env{'user.name'},$cdom,$cnum);
1838: my $ccrole;
1839: if ($crstype eq 'Community') {
1840: $ccrole = 'co';
1841: } else {
1842: $ccrole = 'cc';
1843: }
1844: foreach my $group (keys(%cgroups)) {
1845: $group_privs{$group} =
1846: $env{'user.priv.'.$ccrole.'./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1847: }
1848: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1849: my $area = '/'.$cdom.'/'.$cnum;
1850: my $spec = $role.'.'.$area;
1851: if ($usec ne '') {
1852: $spec .= '/'.$usec;
1853: $area .= '/'.$usec;
1854: }
1855: if ($role =~ /^cr/) {
1856: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1857: } else {
1858: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1859: }
1860: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1861: my $adhocstart = $refresh-1;
1862: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1863: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1864: }
1865: }
1866: }
1867: return;
1868: }
1869:
1870: sub check_forcc {
1871: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1872: my ($is_cc,$ccrole);
1873: if ($crstype eq 'Community') {
1874: $ccrole = 'co';
1875: } else {
1876: $ccrole = 'cc';
1877: }
1878: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1879: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1880: if (defined($env{$envkey})) {
1881: $is_cc = 1;
1882: my ($tstart,$tend)=split(/\./,$env{$envkey});
1883: my $limit = $update;
1884: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1885: $limit = $then;
1886: }
1887: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1888: if ($tend && $tend <$limit) { $is_cc = 0; }
1889: }
1890: }
1891: return $is_cc;
1892: }
1893:
1894: sub courselink {
1895: my ($roledom,$rowtype,$role) = @_;
1896: my $courseform=&Apache::loncommon::selectcourse_link
1897: ('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
1898: 'domain'.$rowtype.'_'.$roledom.'_'.$role,
1899: 'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
1900: $roledom.':'.$role,undef,'Course/Community');
1901: my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1902: '<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1903: '<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
1904: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
1905: return $courseform.$hiddenitems;
1906: }
1907:
1908: sub coursepick_jscript {
1909: my %js_lt = &Apache::lonlocal::texthash(
1910: 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.",
1911: youc => 'You can only use this screen to select courses and communities in the current domain.',
1912: );
1913: &js_escape(\%js_lt);
1914: my $verify_script = <<"END";
1915: <script type="text/javascript">
1916: // <![CDATA[
1917: function verifyCoursePick(caller) {
1918: var numbutton = getIndex(caller)
1919: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1920: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1921: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1922: if (pickedCourse != '') {
1923: if (numbutton != -1) {
1924: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1925: document.rolechoice.elements[numbutton+1].name = courseTarget
1926: document.rolechoice.submit()
1927: }
1928: }
1929: else {
1930: alert("$js_lt{'plsu'}");
1931: }
1932: }
1933: else {
1934: alert("$js_lt{'youc'}")
1935: }
1936: }
1937: function getIndex(caller) {
1938: for (var i=0;i<document.rolechoice.elements.length;i++) {
1939: if (document.rolechoice.elements[i] == caller) {
1940: return i;
1941: }
1942: }
1943: return -1;
1944: }
1945: // ]]>
1946: </script>
1947: END
1948: return $verify_script;
1949: }
1950:
1951: sub coauthorlink {
1952: my ($dcdom,$rowtype) = @_;
1953: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1954: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1955: return $coauthorform.$hiddenitems;
1956: }
1957:
1958: sub display_cc_role {
1959: my $rolekey = shift;
1960: my ($roletext,$roletext_end);
1961: my $advanced = $env{'user.adv'};
1962: my $tryagain = $env{'form.tryagain'};
1963: unless ($rolekey =~/^error\:/) {
1964: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1965: my $ccrole = $1;
1966: my $tdom = $2;
1967: my $trest = $3;
1968: my $tcourseid = $tdom.'_'.$trest;
1969: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1970: my $twhere;
1971: my $ttype;
1972: my $tbg='LC_roles_is';
1973: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1974: if (%newhash) {
1975: $twhere=$newhash{'description'}.
1976: ' <span class="LC_fontsize_small">'.
1977: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1978: '</span>';
1979: $ttype = $newhash{'type'};
1980: } else {
1981: $twhere=&mt('Currently not available');
1982: $env{'course.'.$tcourseid.'.description'}=$twhere;
1983: }
1984: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
1985: $twhere.="<br />".&mt('Domain').":".$tdom;
1986: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1987: }
1988: }
1989: return ($roletext,$roletext_end);
1990: }
1991:
1992: sub adhoc_roles_row {
1993: my ($dcdom,$rowtype) = @_;
1994: my $output = &Apache::loncommon::continue_data_table_row()
1995: .' <td colspan="5" class="LC_textsize_mobile">'
1996: .&mt('[_1]Ad hoc[_2] roles in domain [_3]'
1997: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1998: .' -- ';
1999: my $role = 'cc';
2000: my $selectcclink = &courselink($dcdom,$rowtype,$role);
2001: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
2002: my $carole = &Apache::lonnet::plaintext('ca');
2003: my $selectcalink = &coauthorlink($dcdom,$rowtype);
2004: $output.=$ccrole.': '.$selectcclink
2005: .' | '.$carole.': '.$selectcalink.'</td>'
2006: .&Apache::loncommon::end_data_table_row();
2007: return $output;
2008: }
2009:
2010: sub adhoc_customroles_row {
2011: my ($role,$dhdom,$rowtype,$update,$then) = @_;
2012: my $liverole = 1;
2013: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$dhdom/"});
2014: my $limit = $update;
2015: if (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$dhdom.'/')) {
2016: $limit = $then;
2017: }
2018: if ($tstart && $tstart>$limit) { $liverole = 0; }
2019: if ($tend && $tend <$limit) { $liverole = 0; }
2020: return unless ($liverole);
2021: my %domdefaults = &Apache::lonnet::get_domain_defaults($dhdom);
2022: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
2023: if (scalar(keys(%{$domdefaults{'adhocroles'}})) > 0) {
2024: return &Apache::loncommon::continue_data_table_row()
2025: .' <td colspan="5" class="LC_textsize_mobile">'
2026: .&mt('[_1]Ad hoc[_2] course/community roles in domain [_3]',
2027: '<span class="LC_cusr_emph">','</span>',$dhdom)
2028: .' -- '.&courselink($dhdom,$rowtype,$role);
2029: }
2030: }
2031: return;
2032: }
2033:
2034: sub recent_filename {
2035: my $area=shift;
2036: return 'nohist_recent_'.&escape($area);
2037: }
2038:
2039: sub courseloadpage {
2040: my ($courseid) = @_;
2041: my $startpage;
2042: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
2043: [$courseid.':courseinit']);
2044: my ($tmp) = %entry_settings;
2045: unless ($tmp =~ /^error: 2 /) {
2046: $startpage = $entry_settings{$courseid.':courseinit'};
2047: }
2048: if ($startpage eq '') {
2049: if (exists($env{'environment.course_init_display'})) {
2050: $startpage = $env{'environment.course_init_display'};
2051: }
2052: }
2053: return $startpage;
2054: }
2055:
2056: sub update_session_roles {
2057: my $then=$env{'user.login.time'};
2058: my $refresh=$env{'user.refresh.time'};
2059: if (!$refresh) {
2060: $refresh = $then;
2061: }
2062: my $update = $env{'user.update.time'};
2063: if (!$update) {
2064: $update = $then;
2065: }
2066: my $now = time;
2067: my %roleshash =
2068: &Apache::lonnet::get_my_roles('','','userroles',
2069: ['active','future','previous'],
2070: undef,undef,1);
2071: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2072: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2073: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2074: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2075: @rolecodes);
2076: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2077: my %courseroles;
2078: foreach my $item (keys(%roleshash)) {
2079: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2080: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2081: my ($section,$group,@group_privs);
2082: if ($role =~ m{^gr/(\w*)$}) {
2083: $role = 'gr';
2084: my $priv = $1;
2085: next if ($tstart eq '-1');
2086: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2087: if ($priv ne '') {
2088: push(@group_privs,$priv);
2089: }
2090: }
2091: if ($remainder =~ /:/) {
2092: (my $additional_privs,$group) =
2093: ($remainder =~ /^([\w:]+):([^:]+)$/);
2094: if ($additional_privs ne '') {
2095: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2096: push(@group_privs,split(/:/,$additional_privs));
2097: @group_privs = sort(@group_privs);
2098: }
2099: }
2100: } else {
2101: $group = $remainder;
2102: }
2103: } else {
2104: $section = $remainder;
2105: }
2106: my $where = "/$udom/$uname";
2107: if ($section ne '') {
2108: $where .= "/$section";
2109: } elsif ($group ne '') {
2110: $where .= "/$group";
2111: }
2112: my $rolekey = "$role.$where";
2113: my $envkey = "user.role.$rolekey";
2114: $dbroles{$envkey} = 1;
2115: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2116: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2117: $currrole_expired = 1;
2118: }
2119: }
2120: if ($env{$envkey} eq '') {
2121: my $status_in_db =
2122: &curr_role_status($tstart,$tend,$now,$now);
2123: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2124: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2125: if ($status_in_db eq 'active') {
2126: if ($section eq '') {
2127: push(@newsec,'none');
2128: } else {
2129: push(@newsec,$section);
2130: }
2131: }
2132: } else {
2133: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2134: push(@changed_roles,$role);
2135: }
2136: if ($status_in_db ne 'previous') {
2137: if ($role eq 'gr') {
2138: $newgroup{$rolekey} = $status_in_db;
2139: if ($status_in_db eq 'active') {
2140: unless (ref($courseroles{$udom}) eq 'HASH') {
2141: %{$courseroles{$udom}} =
2142: &Apache::lonnet::get_my_roles('','','userroles',
2143: ['active'],\@possroles,
2144: [$udom],1);
2145: }
2146: &Apache::lonnet::get_groups_roles($udom,$uname,
2147: $courseroles{$udom},
2148: \@rolecodes,\%groups_roles);
2149: }
2150: } else {
2151: $newrole{$rolekey} = $status_in_db;
2152: }
2153: }
2154: }
2155: } else {
2156: my ($currstart,$currend) = split(/\./,$env{$envkey});
2157: if ($role eq 'gr') {
2158: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2159: $hasgroups = 1;
2160: }
2161: }
2162: if (($currstart ne $tstart) || ($currend ne $tend)) {
2163: my $status_in_env =
2164: &curr_role_status($currstart,$currend,$refresh,$update);
2165: my $status_in_db =
2166: &curr_role_status($tstart,$tend,$now,$now);
2167: if ($status_in_env ne $status_in_db) {
2168: if ($status_in_env eq 'active') {
2169: if ($role eq 'st') {
2170: if ($env{'request.role'} eq $rolekey) {
2171: my $switchsection;
2172: unless (ref($courseroles{$udom}) eq 'HASH') {
2173: %{$courseroles{$udom}} =
2174: &Apache::lonnet::get_my_roles('','','userroles',
2175: ['active'],
2176: \@possroles,[$udom],1);
2177: }
2178: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2179: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2180: $switchsection = 1;
2181: last;
2182: }
2183: }
2184: if ($switchsection) {
2185: if ($section eq '') {
2186: $oldsec = 'none';
2187: } else {
2188: $oldsec = $section;
2189: }
2190: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2191: } else {
2192: $currrole_expired = 1;
2193: next;
2194: }
2195: }
2196: }
2197: unless ($rolekey eq $env{'request.role'}) {
2198: if ($role eq 'gr') {
2199: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2200: } else {
2201: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2202: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2203: }
2204: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2205: }
2206: } elsif ($status_in_db eq 'active') {
2207: if (($role eq 'st') &&
2208: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2209: if ($section eq '') {
2210: push(@newsec,'none');
2211: } else {
2212: push(@newsec,$section);
2213: }
2214: } elsif ($role eq 'gr') {
2215: unless (ref($courseroles{$udom}) eq 'HASH') {
2216: %{$courseroles{$udom}} =
2217: &Apache::lonnet::get_my_roles('','','userroles',
2218: ['active'],
2219: \@possroles,[$udom],1);
2220: }
2221: &Apache::lonnet::get_groups_roles($udom,$uname,
2222: $courseroles{$udom},
2223: \@rolecodes,\%groups_roles);
2224: }
2225: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2226: }
2227: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2228: push(@changed_roles,$role);
2229: }
2230: if ($role eq 'gr') {
2231: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2232: } else {
2233: $rolechange{$rolekey} = $status_in_db;
2234: }
2235: }
2236: } else {
2237: if ($role eq 'gr') {
2238: unless ($checkedgroup{$where}) {
2239: my $status_in_db =
2240: &curr_role_status($tstart,$tend,$refresh,$now);
2241: if ($tstart eq '-1') {
2242: $status_in_db = 'deleted';
2243: }
2244: unless (ref($courseroles{$udom}) eq 'HASH') {
2245: %{$courseroles{$udom}} =
2246: &Apache::lonnet::get_my_roles('','','userroles',
2247: ['active'],
2248: \@possroles,[$udom],1);
2249: }
2250: if (ref($courseroles{$udom}) eq 'HASH') {
2251: foreach my $item (keys(%{$courseroles{$udom}})) {
2252: next unless ($item =~ /^\Q$uname\E/);
2253: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2254: my $area = '/'.$cdom.'/'.$cnum;
2255: if ($crssec ne '') {
2256: $area .= '/'.$crssec;
2257: }
2258: my $crsrolekey = $crsrole.'.'.$area;
2259: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2260: $currprivs =~ s/^://;
2261: $currprivs =~ s/\&F$//;
2262: my @curr_grp_privs = split(/\&F:/,$currprivs);
2263: @curr_grp_privs = sort(@curr_grp_privs);
2264: my @diffs;
2265: if (@group_privs > 0 || @curr_grp_privs > 0) {
2266: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2267: }
2268: if (@diffs == 0) {
2269: last;
2270: } else {
2271: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2272: push(@rolecodes,'gr');
2273: }
2274: &gather_roleprivs(\%allroles,\%allgroups,
2275: \%userroles,$where,$role,
2276: $tstart,$tend,$status_in_db);
2277: if ($status_in_db eq 'active') {
2278: &Apache::lonnet::get_groups_roles($udom,$uname,
2279: $courseroles{$udom},
2280: \@rolecodes,\%groups_roles);
2281: }
2282: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2283: last;
2284: }
2285: }
2286: }
2287: $checkedgroup{$where} = 1;
2288: }
2289: } elsif ($role =~ /^cr/) {
2290: my $status_in_db =
2291: &curr_role_status($tstart,$tend,$refresh,$now);
2292: my ($rdummy,$rest) = split(/\//,$role,2);
2293: my %currpriv;
2294: unless (exists($crprivs{$rest})) {
2295: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2296: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2297: if (&Apache::lonnet::hostname($homsvr) ne '') {
2298: my ($rdummy,$roledef)=
2299: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2300: $rdomain,$rauthor);
2301: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2302: my $i = 0;
2303: my @scopes = ('sys','dom','crs');
2304: my @privs = split(/\_/,$roledef);
2305: foreach my $priv (@privs) {
2306: my ($blank,@prv) = split(/:/,$priv);
2307: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2308: if (@prv) {
2309: $priv = ':'.join(':',sort(@prv));
2310: }
2311: $crprivs{$rest}{$scopes[$i]} = $priv;
2312: $i++;
2313: }
2314: }
2315: }
2316: }
2317: my $status_in_env =
2318: &curr_role_status($currstart,$currend,$refresh,$update);
2319: if ($status_in_env eq 'active') {
2320: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2321: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2322: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2323: if (keys(%crprivs)) {
2324: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2325: ($crprivs{$rest}{dom} ne $currpriv{dom})
2326: ||
2327: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2328: &gather_roleprivs(\%allroles,\%allgroups,
2329: \%userroles,$where,$role,
2330: $tstart,$tend,$status_in_db);
2331: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2332: push(@changed_roles,$role);
2333: }
2334: $customprivchg{$rolekey} = $status_in_env;
2335: }
2336: }
2337: }
2338: }
2339: }
2340: }
2341: }
2342: foreach my $envkey (keys(%env)) {
2343: next unless ($envkey =~ /^user\.role\./);
2344: next if ($dbroles{$envkey});
2345: next if ($envkey eq 'user.role.'.$env{'request.role'});
2346: my ($currstart,$currend) = split(/\./,$env{$envkey});
2347: my $status_in_env =
2348: &curr_role_status($currstart,$currend,$refresh,$update);
2349: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2350: my ($role,$rest)=split(m{\./},$rolekey,2);
2351: $rest = '/'.$rest;
2352: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2353: if ($status_in_env eq 'active') {
2354: if ($role eq 'gr') {
2355: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2356: \@possroles);
2357: } else {
2358: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2359: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2360: }
2361: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2362: push(@changed_roles,$role);
2363: }
2364: $deletedroles{$rolekey} = 1;
2365: }
2366: }
2367: }
2368: if (($oldsec) && (@newsec > 0)) {
2369: if (@newsec > 1) {
2370: $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>';
2371: } else {
2372: my $newrole = $env{'request.role'};
2373: if ($newsec[0] eq 'none') {
2374: $newrole =~ s{(/[^/])$}{};
2375: } elsif ($oldsec eq 'none') {
2376: $newrole .= '/'.$newsec[0];
2377: } else {
2378: $newrole =~ s{([^/]+)$}{$newsec[0]};
2379: }
2380: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2381: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2382: my %temp=('logout_'.$env{'request.course.id'} => time);
2383: &Apache::lonnet::put('email_status',\%temp);
2384: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2385: &Apache::lonnet::appenv({"request.course.id" => '',
2386: "request.course.fn" => '',
2387: "request.course.uri" => '',
2388: "request.course.sec" => '',
2389: "request.role" => 'cm',
2390: "request.role.adv" => $env{'user.adv'},
2391: "request.role.domain" => $env{'user.domain'}});
2392: my $rolename = &Apache::loncommon::plainname($curr_role);
2393: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2394: '<input type="hidden" name="newrole" value="" />'.
2395: '<input type="hidden" name="selectrole" value="1" />'.
2396: '<span class="LC_info">'.
2397: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2398: my $button = '<input type="button" name="sectionchanged" value="'.
2399: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2400: if ($newsec[0] eq 'none') {
2401: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2402: } else {
2403: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2404: }
2405: $msg .= '</form></p>';
2406: }
2407: } elsif ($currrole_expired) {
2408: $msg .= '<p class="LC_warning">';
2409: if (&Apache::loncommon::show_course()) {
2410: $msg .= &mt('Your role in the current course has expired.');
2411: } else {
2412: $msg .= &mt('Your current role has expired.');
2413: }
2414: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2415: }
2416: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2417: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2418: $curr_author = $env{'user.author'};
2419: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2420: ($env{'request.role'} =~/^aa/)) {
2421: $curr_role_author=1;
2422: }
2423: $curr_is_adv = $env{'user.adv'};
2424: $curr_role_adv = $env{'request.role.adv'};
2425: if (keys(%userroles) > 0) {
2426: foreach my $role (@changed_roles) {
2427: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2428: push(@rolecodes,$role);
2429: }
2430: }
2431: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2432: push(@rolecodes,'cm');
2433: }
2434: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2435: }
2436: my %newenv;
2437: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2438: unless ($curr_is_adv) {
2439: $newenv{'user.adv'} = 1;
2440: }
2441: } elsif ($curr_is_adv && !$curr_role_adv) {
2442: &Apache::lonnet::delenv('user.adv');
2443: }
2444: my %authorroleshash =
2445: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2446: if (keys(%authorroleshash)) {
2447: unless ($curr_author) {
2448: $newenv{'user.author'} = 1;
2449: }
2450: } elsif ($curr_author && !$curr_role_author) {
2451: &Apache::lonnet::delenv('user.author');
2452: }
2453: if ($env{'request.course.id'}) {
2454: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2455: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2456: my (@activecrsgroups,$crsgroupschanged);
2457: if ($env{'request.course.groups'}) {
2458: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2459: foreach my $item (keys(%deletedroles)) {
2460: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2461: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2462: $crsgroupschanged = 1;
2463: last;
2464: }
2465: }
2466: }
2467: }
2468: unless ($crsgroupschanged) {
2469: foreach my $item (keys(%newgroup)) {
2470: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2471: if ($newgroup{$item} eq 'active') {
2472: $crsgroupschanged = 1;
2473: last;
2474: }
2475: }
2476: }
2477: }
2478: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2479: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2480: ($crsgroupschanged)) {
2481: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2482: ['active'],['gr'],[$cdom],1);
2483: my @activegroups;
2484: foreach my $item (keys(%grouproles)) {
2485: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2486: my $group;
2487: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2488: if ($remainder =~ /:/) {
2489: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2490: } else {
2491: $group = $remainder;
2492: }
2493: if ($group ne '') {
2494: push(@activegroups,$group);
2495: }
2496: }
2497: $newenv{'request.course.groups'} = join(':',@activegroups);
2498: }
2499: }
2500: if (keys(%newenv)) {
2501: &Apache::lonnet::appenv(\%newenv);
2502: }
2503: if (!@changed_roles || !(keys(%changed_groups))) {
2504: my ($rolesmsg,$groupsmsg);
2505: if (!@changed_roles) {
2506: if (&Apache::loncommon::show_course()) {
2507: $rolesmsg = &mt('No new courses or communities');
2508: } else {
2509: $rolesmsg = &mt('No role changes');
2510: }
2511: }
2512: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2513: $groupsmsg = &mt('No changes in course/community groups');
2514: }
2515: if (!@changed_roles && !(keys(%changed_groups))) {
2516: if (($msg ne '') || ($groupsmsg ne '')) {
2517: $msg .= '<ul>';
2518: if ($rolesmsg) {
2519: $msg .= '<li>'.$rolesmsg.'</li>';
2520: }
2521: if ($groupsmsg) {
2522: $msg .= '<li>'.$groupsmsg.'</li>';
2523: }
2524: $msg .= '</ul>';
2525: } else {
2526: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2527: }
2528: return $msg;
2529: }
2530: }
2531: my $changemsg;
2532: if (@changed_roles > 0) {
2533: if (keys(%newgroup) > 0) {
2534: my $groupmsg;
2535: my (%curr_groups,%groupdescs,$currcrs);
2536: foreach my $item (sort(keys(%newgroup))) {
2537: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2538: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2539: my ($cdom,$cnum) = split(/\//,$1);
2540: my $group = $2;
2541: if ($currcrs ne $cdom.'_'.$cnum) {
2542: if ($currcrs) {
2543: $groupmsg .= '</ul><li>';
2544: }
2545: $groupmsg .= '<li><b>'.
2546: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2547: $currcrs = $cdom.'_'.$cnum;
2548: }
2549: my $groupdesc;
2550: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2551: %{$curr_groups{$cdom.'_'.$cnum}} =
2552: &Apache::longroup::coursegroups($cdom,$cnum);
2553: }
2554: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2555: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2556:
2557: my %groupinfo =
2558: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2559: $groupdescs{$cdom.'_'.$cnum}{$group} =
2560: &unescape($groupinfo{'description'});
2561: }
2562: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2563: if ($groupdesc) {
2564: $groupmsg .= '<li>'.
2565: &mt('[_1] with status: [_2].',
2566: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2567: }
2568: }
2569: }
2570: if ($groupmsg) {
2571: $groupmsg .= '</ul></li>';
2572: }
2573: }
2574: if ($groupmsg) {
2575: $changemsg .= '<li>'.
2576: &mt('Courses with new groups').'</li>'.
2577: '<ul>'.$groupmsg.'</ul></li>';
2578: }
2579: }
2580: if (keys(%newrole) > 0) {
2581: my $newmsg;
2582: foreach my $item (sort(keys(%newrole))) {
2583: my $desc = &role_desc($item,$update,$refresh,$now);
2584: if ($desc) {
2585: $newmsg .= '<li>'.
2586: &mt('[_1] with status: [_2].',
2587: $desc,&mt($newrole{$item})).'</li>';
2588: }
2589: }
2590: if ($newmsg) {
2591: $changemsg .= '<li>'.&mt('New roles').
2592: '<ul>'.$newmsg.'</ul>'.
2593: '</li>';
2594: }
2595: }
2596: if (keys(%customprivchg) > 0) {
2597: my $privmsg;
2598: foreach my $item (sort(keys(%customprivchg))) {
2599: my $desc = &role_desc($item,$update,$refresh,$now);
2600: if ($desc) {
2601: $privmsg .= '<li>'.$desc.'</li>';
2602: }
2603: }
2604: if ($privmsg) {
2605: $changemsg .= '<li>'.
2606: &mt('Custom roles with privilege changes').
2607: '<ul>'.$privmsg.'</ul>'.
2608: '</li>';
2609: }
2610: }
2611: if (keys(%rolechange) > 0) {
2612: my $rolemsg;
2613: foreach my $item (sort(keys(%rolechange))) {
2614: my $desc = &role_desc($item,$update,$refresh,$now);
2615: if ($desc) {
2616: $rolemsg .= '<li>'.
2617: &mt('[_1] status now: [_2].',$desc,
2618: $rolechange{$item}).'</li>';
2619: }
2620: }
2621: if ($rolemsg) {
2622: $changemsg .= '<li>'.
2623: &mt('Existing roles with status changes').'</li>'.
2624: '<ul>'.$rolemsg.'</ul>'.
2625: '</li>';
2626: }
2627: }
2628: if (keys(%deletedroles) > 0) {
2629: my $delmsg;
2630: foreach my $item (sort(keys(%deletedroles))) {
2631: my $desc = &role_desc($item,$update,$refresh,$now);
2632: if ($desc) {
2633: $delmsg .= '<li>'.$desc.'</li>';
2634: }
2635: }
2636: if ($delmsg) {
2637: $changemsg .= '<li>'.
2638: &mt('Existing roles now expired').'</li>'.
2639: '<ul>'.$delmsg.'</ul>'.
2640: '</li>';
2641: }
2642: }
2643: }
2644: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2645: my $groupchgmsg;
2646: foreach my $key (sort(keys(%changed_groups))) {
2647: my $crs = 'gr/'.$key;
2648: $crs =~ s/_/\//;
2649: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2650: if (ref($changed_groups{$key}) eq 'HASH') {
2651: my @showgroups;
2652: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2653: if ($changed_groups{$key}{$group} eq 'active') {
2654: push(@showgroups,$group);
2655: }
2656: }
2657: if (@showgroups > 0) {
2658: $groupchgmsg .= '<li>'.
2659: &mt('Course: [_1], groups: [_2].',$key,
2660: join(', ',@showgroups)).
2661: '</li>';
2662: }
2663: }
2664: }
2665: }
2666: if (keys(%groupchange) > 0) {
2667: $groupchgmsg .= '<li>'.
2668: &mt('Existing course/community groups with status changes').'</li>'.
2669: '<ul>';
2670: foreach my $crs (sort(keys(%groupchange))) {
2671: my $cid = $crs;
2672: $cid=~s{^/}{};
2673: $cid=~s{/}{_};
2674: my $crsdesc = $env{'course.'.$cid.'.description'};
2675: my $cdom = $env{'course.'.$cid.'.domain'};
2676: my $cnum = $env{'course.'.$cid.'.num'};
2677: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2678: my %groupdesc;
2679: if (ref($groupchange{$crs}) eq 'HASH') {
2680: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2681: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2682: unless ($groupdesc{$group}) {
2683: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2684: $groupdesc{$group} = &unescape($groupinfo{'description'});
2685: }
2686: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2687: }
2688: $groupchgmsg .= '</ul></li>';
2689: }
2690: }
2691: $groupchgmsg .= '</ul></li>';
2692: }
2693: if ($groupchgmsg) {
2694: $changemsg .= '<li>'.
2695: &mt('Courses with changes in groups').'</li>'.
2696: '<ul>'.$groupchgmsg.'</ul></li>';
2697: }
2698: }
2699: if ($changemsg) {
2700: $msg .= '<ul>'.$changemsg.'</ul>';
2701: } else {
2702: if (&Apache::loncommon::show_course()) {
2703: $msg = &mt('No new courses or communities');
2704: } else {
2705: $msg = &mt('No role changes');
2706: }
2707: }
2708: return $msg;
2709: }
2710:
2711: sub role_desc {
2712: my ($item,$update,$refresh,$now) = @_;
2713: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2714: $trole,$tremark);
2715: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2716: $now,\$role,\$where,\$trolecode,
2717: \$tstatus,\$tstart,\$tend);
2718: return unless ($role);
2719: if ($role =~ /^cr\//) {
2720: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2721: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2722: }
2723: $trole=Apache::lonnet::plaintext($role);
2724: my ($tdom,$trest,$tsection)=
2725: split(/\//,Apache::lonnet::declutter($where));
2726: if (($role eq 'ca') || ($role eq 'aa')) {
2727: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2728: $home = &Apache::lonnet::hostname($home);
2729: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2730: ': '.$tdom.' '.&mt('Server').': '.$home;
2731: } elsif ($role eq 'au') {
2732: my $home = &Apache::lonnet::homeserver
2733: ($env{'user.name'},$env{'user.domain'});
2734: $home = &Apache::lonnet::hostname($home);
2735: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2736: ': '.$home;
2737: } elsif ($trest) {
2738: my $tcourseid=$tdom.'_'.$trest;
2739: my $crstype = &Apache::loncommon::course_type($tcourseid);
2740: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2741: if ($env{'course.'.$tcourseid.'.description'}) {
2742: $twhere=$env{'course.'.$tcourseid.'.description'};
2743: } else {
2744: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2745: if (%newhash) {
2746: $twhere=$newhash{'description'};
2747: } else {
2748: $twhere=&mt('Currently not available');
2749: }
2750: }
2751: if ($tsection) {
2752: $twhere.= ' '.&mt('Section').': '.$tsection;
2753: }
2754: if ($role ne 'st') {
2755: $twhere.= ' '.&mt('Domain').': '.$tdom;
2756: }
2757: } elsif ($tdom) {
2758: $twhere = &mt('Domain').': '.$tdom;
2759: }
2760: my $output;
2761: if ($trole) {
2762: $output = $trole;
2763: if ($twhere) {
2764: $output .= " -- $twhere";
2765: }
2766: if ($tremark) {
2767: $output .= '<br />'.$tremark;
2768: }
2769: }
2770: return $output;
2771: }
2772:
2773: sub curr_role_status {
2774: my ($start,$end,$refresh,$update) = @_;
2775: if (($start) && ($start<0)) { return 'deleted' };
2776: my $status = 'active';
2777: if (($end) && ($end<=$update)) {
2778: $status = 'previous';
2779: }
2780: if (($start) && ($refresh<$start)) {
2781: $status = 'future';
2782: }
2783: return $status;
2784: }
2785:
2786: sub gather_roleprivs {
2787: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2788: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2789: if (($area ne '') && ($role ne '')) {
2790: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2791: $area,$tstart,$tend);
2792: my $spec=$role.'.'.$area;
2793: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2794: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2795: if ($status eq 'active') {
2796: if ($role =~ /^cr\//) {
2797: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2798: } elsif ($role eq 'gr') {
2799: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2800: $env{'user.domain'},
2801: $env{'user.name'});
2802: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2803: (undef,my $group_privs) = split(/\//,$trole);
2804: $group_privs = &unescape($group_privs);
2805: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2806: } else {
2807: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2808: }
2809: }
2810: }
2811: return;
2812: }
2813:
2814: sub is_active_course {
2815: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2816: return unless(ref($roleshashref) eq 'HASH');
2817: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2818: my $is_active;
2819: foreach my $key (keys(%{$roleshashref})) {
2820: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2821: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2822: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2823: if ($status eq 'active') {
2824: $is_active = 1;
2825: last;
2826: }
2827: }
2828: }
2829: return $is_active;
2830: }
2831:
2832: sub get_roles_functions {
2833: my ($rolescount,$cattype) = @_;
2834: my @links;
2835: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2836: if ($env{'environment.canrequest.author'}) {
2837: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2838: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2839: }
2840: }
2841: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2842: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2843: }
2844: if (&Apache::lonmenu::check_for_rcrs()) {
2845: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2846: }
2847: if ($env{'form.state'} eq 'queued') {
2848: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2849: } else {
2850: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2851: }
2852: if ($env{'user.adv'}) {
2853: if ($env{'form.display'} eq 'showall') {
2854: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2855: } else {
2856: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2857: }
2858: }
2859: unless ($cattype eq 'none') {
2860: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2861: }
2862: my $funcs;
2863: if ($env{'browser.mobile'}) {
2864: my @functions;
2865: foreach my $link (@links) {
2866: push(@functions,[$link->[0],$link->[2]]);
2867: }
2868: my $title = 'Display options';
2869: if ($env{'user.adv'}) {
2870: $title = 'Roles options';
2871: }
2872: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2873: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2874: } else {
2875: $funcs = &Apache::lonhtmlcommon::start_funclist();
2876: foreach my $link (@links) {
2877: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2878: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2879: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2880: $link->[2].'</a>');
2881: }
2882: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2883: $funcs = &Apache::loncommon::head_subbox($funcs);
2884: }
2885: return $funcs;
2886: }
2887:
2888: sub get_queued {
2889: my ($output,%reqcrs);
2890: my ($types,$typenames) = &Apache::loncommon::course_types();
2891: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2892: $env{'user.name'},'^status:');
2893: foreach my $key (keys(%statusinfo)) {
2894: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2895: (undef,my($cdom,$cnum)) = split(/:/,$key);
2896: my $requestkey = $cdom.'_'.$cnum;
2897: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2898: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2899: $env{'user.domain'},$env{'user.name'});
2900: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2901: my $reqtime = $history{'reqtime'};
2902: my $lastupdate = $history{'timestamp'};
2903: my $showtype = $history{'crstype'};
2904: if (defined($typenames->{$history{'crstype'}})) {
2905: $showtype = $typenames->{$history{'crstype'}};
2906: }
2907: my $description;
2908: if (ref($history{'details'}) eq 'HASH') {
2909: $description = $history{details}{'cdescr'};
2910: }
2911: @{$reqcrs{$reqtime}} = ($description,$showtype);
2912: }
2913: }
2914: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2915: if (@sortedtimes > 0) {
2916: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2917: &Apache::loncommon::start_data_table().
2918: &Apache::loncommon::start_data_table_header_row().
2919: '<th>'.&mt('Date requested').'</th>'.
2920: '<th>'.&mt('Course title').'</th>'.
2921: '<th>'.&mt('Course type').'</th>';
2922: &Apache::loncommon::end_data_table_header_row();
2923: foreach my $reqtime (@sortedtimes) {
2924: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2925: $output .= &Apache::loncommon::start_data_table_row().
2926: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2927: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2928: &Apache::loncommon::end_data_table_row();
2929: }
2930: $output .= &Apache::loncommon::end_data_table().
2931: '<br /></p>';
2932: }
2933: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2934: if ($queuedselfenroll) {
2935: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2936: $queuedselfenroll.'<br /></p>';
2937: }
2938: if ($env{'environment.canrequest.author'}) {
2939: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2940: my $requestauthor;
2941: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2942: if (($status eq 'approval') || ($status eq 'approved')) {
2943: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2944: if ($status eq 'approval') {
2945: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2946: &Apache::lonlocal::locallocaltime($timestamp));
2947: } elsif ($status eq 'approved') {
2948: my %roleshash =
2949: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2950: ['active'],['au'],[$env{'user.domain'}]);
2951: if (keys(%roleshash)) {
2952: $output .= '<span class="LC_info">'.
2953: &mt('Your request for an author role has been approved.').'<br />'.
2954: &mt('Use the "Check for changes" link to update your list of roles.').
2955: '</span>';
2956: }
2957: }
2958: $output .= '</p>';
2959: }
2960: }
2961: }
2962: unless ($output) {
2963: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2964: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2965: $output = &mt('No requests for courses, communities or authoring currently queued');
2966: } else {
2967: $output = &mt('No enrollment requests currently queued awaiting approval');
2968: }
2969: }
2970: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2971: $output.'</fieldset></div><br clear="all" />';
2972: }
2973:
2974: 1;
2975: __END__
2976:
2977: =head1 NAME
2978:
2979: Apache::lonroles - User Roles Screen
2980:
2981: =head1 SYNOPSIS
2982:
2983: Invoked by /etc/httpd/conf/srm.conf:
2984:
2985: <Location /adm/roles>
2986: PerlAccessHandler Apache::lonacc
2987: SetHandler perl-script
2988: PerlHandler Apache::lonroles
2989: ErrorDocument 403 /adm/login
2990: ErrorDocument 500 /adm/errorhandler
2991: </Location>
2992:
2993: =head1 OVERVIEW
2994:
2995: =head2 Choosing Roles
2996:
2997: C<lonroles> is a handler that allows a user to switch roles in
2998: mid-session. LON-CAPA attempts to work with "No Role Specified", the
2999: default role that a user has before selecting a role, as widely as
3000: possible, but certain handlers for example need specification which
3001: course they should act on, etc. Both in this scenario, and when the
3002: handler determines via C<lonnet>'s C<&allowed> function that a certain
3003: action is not allowed, C<lonroles> is used as error handler. This
3004: allows the user to select another role which may have permission to do
3005: what they were trying to do.
3006:
3007: =begin latex
3008:
3009: \begin{figure}
3010: \begin{center}
3011: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
3012: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
3013: \end{center}
3014: \end{figure}
3015:
3016: =end latex
3017:
3018: =head2 Role Initialization
3019:
3020: 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.
3021:
3022: =head1 INTRODUCTION
3023:
3024: This module enables a user to select what role he wishes to
3025: operate under (instructor, student, teaching assistant, course
3026: coordinator, etc). These roles are pre-established by the actions
3027: of upper-level users.
3028:
3029: This is part of the LearningOnline Network with CAPA project
3030: described at http://www.lon-capa.org.
3031:
3032: =head1 HANDLER SUBROUTINE
3033:
3034: This routine is called by Apache and mod_perl.
3035:
3036: =over 4
3037:
3038: =item *
3039:
3040: Roles Initialization (yes/no)
3041:
3042: =item *
3043:
3044: Get Error Message from Environment
3045:
3046: =item *
3047:
3048: Who is this?
3049:
3050: =item *
3051:
3052: Generate Page Output
3053:
3054: =item *
3055:
3056: Choice or no choice
3057:
3058: =item *
3059:
3060: Table
3061:
3062: =item *
3063:
3064: Privileges
3065:
3066: =back
3067:
3068: =cut
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