1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.320 2016/10/27 22:51:08 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: =pod
31:
32: =head1 NAME
33:
34: Apache::lonroles - User Roles Screen
35:
36: =head1 SYNOPSIS
37:
38: Invoked by /etc/httpd/conf/srm.conf:
39:
40: <Location /adm/roles>
41: PerlAccessHandler Apache::lonacc
42: SetHandler perl-script
43: PerlHandler Apache::lonroles
44: ErrorDocument 403 /adm/login
45: ErrorDocument 500 /adm/errorhandler
46: </Location>
47:
48: =head1 OVERVIEW
49:
50: =head2 Choosing Roles
51:
52: C<lonroles> is a handler that allows a user to switch roles in
53: mid-session. LON-CAPA attempts to work with "No Role Specified", the
54: default role that a user has before selecting a role, as widely as
55: possible, but certain handlers for example need specification which
56: course they should act on, etc. Both in this scenario, and when the
57: handler determines via C<lonnet>'s C<&allowed> function that a certain
58: action is not allowed, C<lonroles> is used as error handler. This
59: allows the user to select another role which may have permission to do
60: what they were trying to do.
61:
62: =begin latex
63:
64: \begin{figure}
65: \begin{center}
66: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
67: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
68: \end{center}
69: \end{figure}
70:
71: =end latex
72:
73: =head2 Role Initialization
74:
75: The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
76:
77: =head1 INTRODUCTION
78:
79: This module enables a user to select what role he wishes to
80: operate under (instructor, student, teaching assistant, course
81: coordinator, etc). These roles are pre-established by the actions
82: of upper-level users.
83:
84: This is part of the LearningOnline Network with CAPA project
85: described at http://www.lon-capa.org.
86:
87: =head1 HANDLER SUBROUTINE
88:
89: This routine is called by Apache and mod_perl.
90:
91: =over 4
92:
93: =item *
94:
95: Roles Initialization (yes/no)
96:
97: =item *
98:
99: Get Error Message from Environment
100:
101: =item *
102:
103: Who is this?
104:
105: =item *
106:
107: Generate Page Output
108:
109: =item *
110:
111: Choice or no choice
112:
113: =item *
114:
115: Table
116:
117: =item *
118:
119: Privileges
120:
121: =back
122:
123: =cut
124:
125:
126: package Apache::lonroles;
127:
128: use strict;
129: use Apache::lonnet;
130: use Apache::lonuserstate();
131: use Apache::Constants qw(:common REDIRECT);
132: use Apache::File();
133: use Apache::lonmenu;
134: use Apache::loncommon;
135: use Apache::lonhtmlcommon;
136: use Apache::lonannounce;
137: use Apache::lonlocal;
138: use Apache::lonpageflip();
139: use Apache::lonnavdisplay();
140: use Apache::loncoursequeueadmin;
141: use Apache::longroup;
142: use Apache::lonrss;
143: use Apache::lonplacementtest;
144: use GDBM_File;
145: use LONCAPA qw(:DEFAULT :match);
146: use HTML::Entities;
147:
148:
149: sub redirect_user {
150: my ($r,$title,$url,$msg) = @_;
151: $msg = $title if (! defined($msg));
152: &Apache::loncommon::content_type($r,'text/html');
153: &Apache::loncommon::no_cache($r);
154: $r->send_http_header;
155:
156: # Breadcrumbs
157: my $brcrum = [{'href' => $url,
158: 'text' => 'Switching Role'},];
159: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
160: {'redirect' => [1,$url],
161: 'bread_crumbs' => $brcrum,});
162: my $end_page = &Apache::loncommon::end_page();
163:
164: # Note to style police:
165: # This must only replace the spaces, nothing else, or it bombs elsewhere.
166: $url=~s/ /\%20/g;
167: $r->print(<<ENDREDIR);
168: $start_page
169: <p>$msg</p>
170: $end_page
171: ENDREDIR
172: return;
173: }
174:
175: sub error_page {
176: my ($r,$error,$dest)=@_;
177: &Apache::loncommon::content_type($r,'text/html');
178: &Apache::loncommon::no_cache($r);
179: $r->send_http_header;
180: return OK if $r->header_only;
181: # Breadcrumbs
182: my $brcrum = [{'href' => $dest,
183: 'text' => 'Problems during Course Initialization'},];
184: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
185: undef,
186: {'bread_crumbs' => $brcrum,})
187: );
188: $r->print(
189: '<script type="text/javascript">'.
190: '// <![CDATA['.
191: &Apache::lonmenu::rawconfig().
192: '// ]]>'.
193: '</script>'.
194: '<p class="LC_error">'.&mt('The following problems occurred:').
195: '<br />'.
196: $error.
197: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
198: );
199: $r->print(&Apache::loncommon::end_page());
200: }
201:
202: sub handler {
203:
204: my $r = shift;
205:
206: # Check for critical messages and redirect if present.
207: my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
208: if ($redirect) {
209: &Apache::loncommon::content_type($r,'text/html');
210: $r->header_out(Location => $url);
211: return REDIRECT;
212: }
213:
214: my $now=time;
215: my $then=$env{'user.login.time'};
216: my $refresh=$env{'user.refresh.time'};
217: my $update=$env{'user.update.time'};
218: if (!$refresh) {
219: $refresh = $then;
220: }
221: if (!$update) {
222: $update = $then;
223: }
224:
225: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
226:
227: # -------------------------------------------------- Check if setting hot list
228: my $hotlist;
229: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
230: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
231: }
232:
233: # -------------------------------------------------------- Check for new roles
234: my $updateresult;
235: if ($env{'form.state'} eq 'doupdate') {
236: my $show_course=&Apache::loncommon::show_course();
237: my $checkingtxt;
238: if ($show_course) {
239: $checkingtxt = &mt('Checking for new courses ...');
240: } else {
241: $checkingtxt = &mt('Checking for new roles ...');
242: }
243: $updateresult = $checkingtxt;
244: $updateresult .= &update_session_roles();
245: &Apache::lonnet::appenv({'user.update.time' => $now});
246: $update = $now;
247: &Apache::loncoursequeueadmin::reqauthor_check();
248: }
249:
250: # -------------------------------------------------- Check for author requests
251: my $reqauthor;
252: if ($env{'form.state'} eq 'requestauthor') {
253: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
254: }
255:
256: my $envkey;
257: my %dcroles = ();
258: my %dhroles = ();
259: my ($numdc,$numdh,$numadhoc) = &check_for_adhoc(\%dcroles,\%dhroles,$update,$then);
260: my $loncaparev = $r->dir_config('lonVersion');
261:
262: # ================================================================== Roles Init
263: if ($env{'form.selectrole'}) {
264:
265: my $locknum=&Apache::lonnet::get_locks();
266: if ($locknum) { return 409; }
267:
268: my $custom_adhoc;
269: if ($env{'form.newrole'}) {
270: $env{'form.'.$env{'form.newrole'}}=1;
271: # Check if this is a Domain Helpdesk role trying to enter a course
272: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
273: if ($dhroles{$1}) {
274: $custom_adhoc = 1;
275: }
276: }
277: }
278: if ($env{'request.course.id'}) {
279: # Check if user is CC trying to select a course role
280: if ($env{'form.switchrole'}) {
281: my $switch_is_active;
282: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
283: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
284: if (!$end || $end > $now) {
285: if (!$start || $start < $update) {
286: $switch_is_active = 1;
287: }
288: }
289: }
290: unless ($switch_is_active) {
291: &adhoc_course_role($refresh,$update,$then);
292: }
293: }
294: my %temp=('logout_'.$env{'request.course.id'} => time);
295: &Apache::lonnet::put('email_status',\%temp);
296: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
297: }
298: &Apache::lonnet::appenv({"request.course.id" => '',
299: "request.course.fn" => '',
300: "request.course.uri" => '',
301: "request.course.sec" => '',
302: "request.course.tied" => '',
303: "request.course.timechecked" => '',
304: "request.role" => 'cm',
305: "request.role.adv" => $env{'user.adv'},
306: "request.role.domain" => $env{'user.domain'}});
307: # Check if Domain Helpdesk role trying to enter a course needs privs to be created
308: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)$}) {
309: my $cdom = $1;
310: my $rolename = $2;
311: my $cnum = $3;
312: if ($custom_adhoc) {
313: my %adhocroles = &Apache::lonnet::userenvironment($env{'user.domain'},$env{'user.name'},
314: 'adhocroles.'.$cdom);
315: if (keys(%adhocroles)) {
316: my @adhoc = split(',',$adhocroles{'adhocroles.'.$cdom});
317: if (grep(/^\Q$rolename\E$/,@adhoc)) {
318: if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
319: "cr/$cdom/$cdom".'-domainconfig/'.$rolename)) {
320: &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time});
321: }
322: }
323: }
324: }
325: } elsif (($numdc > 0) || ($numdh > 0)) {
326: # Check if user is a DC trying to enter a course or author space and needs privs to be created
327: # Check if user is a DH trying to enter a course and needs privs to be created
328: foreach my $envkey (keys(%env)) {
329: # Is this an ad-hoc Coordinator role?
330: if ($numdc) {
331: if (my ($ccrole,$domain,$coursenum) =
332: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
333: if ($dcroles{$domain}) {
334: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
335: $update,$refresh,$now,$ccrole)) {
336: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
337: }
338: }
339: last;
340: }
341: # Is this an ad-hoc CA-role?
342: if (my ($domain,$user) =
343: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
344: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
345: delete($env{$envkey});
346: $env{'form.au./'.$domain.'/'} = 1;
347: my ($server_status,$home) = &check_author_homeserver($user,$domain);
348: if ($server_status eq 'switchserver') {
349: my $trolecode = 'au./'.$domain.'/';
350: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
351: $r->internal_redirect($switchserver);
352: return OK;
353: }
354: last;
355: }
356: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
357: if (((($castart) && ($castart < $now)) || !$castart) &&
358: ((!$caend) || (($caend) && ($caend > $now)))) {
359: my ($server_status,$home) = &check_author_homeserver($user,$domain);
360: if ($server_status eq 'switchserver') {
361: my $trolecode = 'ca./'.$domain.'/'.$user;
362: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
363: $r->internal_redirect($switchserver);
364: return OK;
365: }
366: last;
367: }
368: }
369: # Check if author blocked ca-access
370: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
371: if ($blocked{'domcoord.author'} eq 'blocked') {
372: delete($env{$envkey});
373: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
374: last;
375: }
376: if ($dcroles{$domain}) {
377: my ($server_status,$home) = &check_author_homeserver($user,$domain);
378: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
379: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
380: $refresh,$now,'ca');
381: if ($server_status eq 'switchserver') {
382: my $trolecode = 'ca./'.$domain.'/'.$user;
383: my $switchserver = '/adm/switchserver?'
384: .'otherserver='.$home.'&role='.$trolecode;
385: $r->internal_redirect($switchserver);
386: return OK;
387: }
388: } else {
389: delete($env{$envkey});
390: }
391: } else {
392: delete($env{$envkey});
393: }
394: last;
395: }
396: }
397: if ($numdh) {
398: # Is this an ad hoc custom role in a course/community?
399: if (my ($domain,$rolename,$coursenum) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)$})) {
400: if ($dhroles{$domain}) {
401: my @adhoc;
402: if ($env{'environment.adhocroles.'.$domain}) {
403: @adhoc = split(',',$env{'environment.adhocroles.'.$domain});
404: } else {
405: my %adhocroles = &Apache::lonnet::userenvironment($env{'user.domain'},$env{'user.name'},
406: 'adhocroles.'.$domain);
407: if (keys(%adhocroles)) {
408: @adhoc = split(',',$adhocroles{'adhocroles.'.$domain});
409: }
410: }
411: if ((@adhoc > 0) && ($rolename ne '')) {
412: if (grep(/^\Q$rolename\E$/,@adhoc)) {
413: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now,
414: "cr/$domain/$domain".'-domainconfig/'.$rolename)) {
415: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain".
416: '-domainconfig/'."$rolename.adhoc" => time});
417: }
418: } else {
419: delete($env{$envkey});
420: }
421: } else {
422: delete($env{$envkey});
423: }
424: } else {
425: delete($env{$envkey});
426: }
427: last;
428: }
429: }
430: }
431: }
432: foreach $envkey (keys(%env)) {
433: next if ($envkey!~/^user\.role\./);
434: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
435: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
436: \$trolecode,\$tstatus,\$tstart,\$tend);
437: if ($env{'form.'.$trolecode}) {
438: if ($tstatus eq 'is') {
439: $where=~s/^\///;
440: my ($cdom,$cnum,$csec)=split(/\//,$where);
441: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
442: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
443: my @ids = &Apache::lonnet::current_machine_ids();
444: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
445: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
446: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
447: my ($switchserver,$switchwarning) =
448: &Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
449: $curr_reqd_hash{'internal.releaserequired'});
450: if ($switchwarning ne '' || $switchserver ne '') {
451: &Apache::loncommon::content_type($r,'text/html');
452: &Apache::loncommon::no_cache($r);
453: $r->send_http_header;
454: $r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
455: return OK;
456: }
457: }
458: }
459: }
460: # check for course groups
461: my %coursegroups = &Apache::lonnet::get_active_groups(
462: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
463: my $cgrps = join(':',keys(%coursegroups));
464:
465: # store role if recent_role list being kept
466: if ($env{'environment.recentroles'}) {
467: my %frozen_roles =
468: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
469: &Apache::lonhtmlcommon::store_recent('roles',
470: $trolecode,' ',$frozen_roles{$trolecode});
471: }
472:
473:
474: # check for keyed access
475: if (($role eq 'st') &&
476: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
477: # who is key authority?
478: my $authdom=$cdom;
479: my $authnum=$cnum;
480: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
481: ($authnum,$authdom)=
482: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
483: }
484: # check with key authority
485: unless (&Apache::lonnet::validate_access_key(
486: $env{'environment.key.'.$cdom.'_'.$cnum},
487: $authdom,$authnum)) {
488: # there is no valid key
489: if ($env{'form.newkey'}) {
490: # student attempts to register a new key
491: &Apache::loncommon::content_type($r,'text/html');
492: &Apache::loncommon::no_cache($r);
493: $r->send_http_header;
494: my $swinfo=&Apache::lonmenu::rawconfig();
495: my $start_page=&Apache::loncommon::start_page
496: ('Verifying Access Key to Unlock this Course');
497: my $end_page=&Apache::loncommon::end_page();
498: my $buttontext=&mt('Enter Course');
499: my $message=&mt('Successfully registered key');
500: my $assignresult=
501: &Apache::lonnet::assign_access_key(
502: $env{'form.newkey'},
503: $authdom,$authnum,
504: $cdom,$cnum,
505: $env{'user.domain'},
506: $env{'user.name'},
507: &mt('Assigned from [_1] at [_2] for [_3]'
508: ,$ENV{'REMOTE_ADDR'}
509: ,&Apache::lonlocal::locallocaltime()
510: ,$trolecode)
511: );
512: unless ($assignresult eq 'ok') {
513: $assignresult=~s/^error\:\s*//;
514: $message=&mt($assignresult).
515: '<br /><a href="/adm/logout">'.
516: &mt('Logout').'</a>';
517: $buttontext=&mt('Re-Enter Key');
518: }
519: $r->print(<<ENDENTEREDKEY);
520: $start_page
521: <script type="text/javascript">
522: // <![CDATA[
523: $swinfo
524: // ]]>
525: </script>
526: <form action="" method="post">
527: <input type="hidden" name="selectrole" value="1" />
528: <input type="hidden" name="$trolecode" value="1" />
529: <span class="LC_fontsize_large">$message</span><br />
530: <input type="submit" value="$buttontext" />
531: </form>
532: $end_page
533: ENDENTEREDKEY
534: return OK;
535: } else {
536: # print form to enter a new key
537: &Apache::loncommon::content_type($r,'text/html');
538: &Apache::loncommon::no_cache($r);
539: $r->send_http_header;
540: my $swinfo=&Apache::lonmenu::rawconfig();
541: my $start_page=&Apache::loncommon::start_page
542: ('Enter Access Key to Unlock this Course');
543: my $end_page=&Apache::loncommon::end_page();
544: $r->print(<<ENDENTERKEY);
545: $start_page
546: <script type="text/javascript">
547: // <![CDATA[
548: $swinfo
549: // ]]>
550: </script>
551: <form action="" method="post">
552: <input type="hidden" name="selectrole" value="1" />
553: <input type="hidden" name="$trolecode" value="1" />
554: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
555: <input type="submit" value="Enter key" />
556: </form>
557: $end_page
558: ENDENTERKEY
559: return OK;
560: }
561: }
562: }
563: &Apache::lonnet::log($env{'user.domain'},
564: $env{'user.name'},
565: $env{'user.home'},
566: "Role ".$trolecode);
567:
568: &Apache::lonnet::appenv(
569: {'request.role' => $trolecode,
570: 'request.role.domain' => $cdom,
571: 'request.course.sec' => $csec,
572: 'request.course.groups' => $cgrps});
573: my $tadv=0;
574:
575: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
576: my $msg;
577: my ($furl,$ferr)=
578: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
579: unless ($ferr) {
580: unless (($env{'form.switchrole'}) ||
581: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
582: &Apache::lonnet::put('nohist_crslastlogin',
583: {$env{'user.name'}.':'.$env{'user.domain'}.
584: ':'.$csec.':'.$role => $now},$cdom,$cnum);
585: }
586: my ($feeds,$syllabus_time);
587: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
588: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
589: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
590: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
591: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
592: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
593: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
594: $syllabus_time = $syllabus{'uploaded.lastmodified'};
595: if ($syllabus_time) {
596: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
597: }
598: }
599: }
600: }
601: if (($env{'form.orgurl'}) &&
602: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
603: ($env{'form.orgurl'} ne '/adm/roles')) {
604: my $dest=$env{'form.orgurl'};
605: if ($env{'form.symb'}) {
606: if ($dest =~ /\?/) {
607: $dest .= '&';
608: } else {
609: $dest .= '?';
610: }
611: $dest .= 'symb='.$env{'form.symb'};
612: }
613: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
614: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
615: if (($ferr) && ($tadv)) {
616: &error_page($r,$ferr,$dest);
617: } else {
618: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
619: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
620: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
621: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
622: $cdom.'_'.$cnum);
623: }
624: }
625: $r->internal_redirect($dest);
626: }
627: return OK;
628: } else {
629: if (!$env{'request.course.id'}) {
630: &Apache::lonnet::appenv(
631: {"request.course.id" => $cdom.'_'.$cnum});
632: $furl='/adm/roles?tryagain=1';
633: $msg='<p><span class="LC_error">'
634: .&mt('Could not initialize [_1] at this time.',
635: $env{'course.'.$cdom.'_'.$cnum.'.description'})
636: .'</span></p>'
637: .'<p>'.&mt('Please try again.').'</p>'
638: .'<p>'.$ferr.'</p>';
639: }
640: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
641: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
642:
643: if (($ferr) && ($tadv)) {
644: &error_page($r,$ferr,$furl);
645: } else {
646: # Check to see if the user is a CC entering a course
647: # for the first time
648: if ((($role eq 'cc') || ($role eq 'co'))
649: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
650: $furl = "/adm/helper/course.initialization.helper";
651: # Send the user to the course they selected
652: } elsif ($env{'request.course.id'}) {
653: if ((&Apache::loncommon::course_type() eq 'Placement') &&
654: (!$env{'request.role.adv'})) {
655: my ($score,$incomplete) =
656: &Apache::lonplacementtest::check_completion(undef,undef,1);
657: if (($incomplete) && ($incomplete < 100)) {
658: &redirect_user($r, &mt('Entering [_1]',
659: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
660: '/adm/placement', $msg);
661: return OK;
662: }
663: }
664: my ($dest,$destsymb,$checkenc);
665: $dest = $env{'form.destinationurl'};
666: $destsymb = $env{'form.destsymb'};
667: if ($dest ne '') {
668: if ($env{'form.switchrole'}) {
669: if ($destsymb ne '') {
670: if ($destsymb !~ m{^/enc/}) {
671: unless ($env{'request.role.adv'}) {
672: $checkenc = 1;
673: }
674: }
675: }
676: if ($dest =~ m{^/enc/}) {
677: if ($env{'request.role.adv'}) {
678: $dest = &Apache::lonenc::unencrypted($dest);
679: if ($destsymb eq '') {
680: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
681: $destsymb = &unescape($destsymb);
682: }
683: }
684: } else {
685: if ($destsymb eq '') {
686: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
687: $destsymb = &unescape($destsymb);
688: }
689: unless ($env{'request.role.adv'}) {
690: $checkenc = 1;
691: }
692: }
693: if (($checkenc) && ($destsymb ne '')) {
694: my ($encstate,$unencsymb,$res);
695: $unencsymb = &Apache::lonnet::symbclean($destsymb);
696: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
697: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
698: if ($encstate) {
699: if (($dest ne '') && ($dest !~ m{^/enc/})) {
700: $dest=&Apache::lonenc::encrypted($dest);
701: }
702: }
703: }
704: }
705: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
706: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
707: my $esc_symb = &escape($destsymb);
708: $dest .= '?symb='.$esc_symb;
709: }
710: }
711: &redirect_user($r, &mt('Entering [_1]',
712: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
713: $dest, $msg);
714: return OK;
715: }
716: if (&Apache::lonnet::allowed('whn',
717: $env{'request.course.id'})
718: || &Apache::lonnet::allowed('whn',
719: $env{'request.course.id'}.'/'
720: .$env{'request.course.sec'})
721: ) {
722: my $startpage = &courseloadpage($env{'request.course.id'});
723: unless ($startpage eq 'firstres') {
724: $msg = &mt('Entering [_1] ...',
725: $env{'course.'.$env{'request.course.id'}.'.description'});
726: &redirect_user($r, &mt('New in course'),
727: '/adm/whatsnew?refpage=start', $msg);
728: return OK;
729: }
730: }
731: }
732: # Are we allowed to look at the first resource?
733: my $access;
734: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
735: # If it's an external resource,
736: # strip off the symb argument and possible query
737: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
738: # Unencode $symb
739: $symb = &unescape($symb);
740: # Then check for permission
741: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
742: # For other resources just check for permission
743: } else {
744: $access = &Apache::lonnet::allowed('bre',$furl);
745: }
746: if (!$access) {
747: $furl = &Apache::lonpageflip::first_accessible_resource();
748: } elsif ($access eq 'B') {
749: $furl = '/adm/navmaps?showOnlyHomework=1';
750: }
751: $msg = &mt('Entering [_1] ...',
752: $env{'course.'.$cdom.'_'.$cnum.'.description'});
753: &redirect_user($r, &mt('Entering [_1]',
754: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
755: $furl, $msg);
756: }
757: return OK;
758: }
759: }
760: #
761: # Send the user to the construction space they selected
762: if ($role =~ /^(au|ca|aa)$/) {
763: my $redirect_url = '/priv/';
764: if ($role eq 'au') {
765: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
766: } else {
767: $redirect_url .= $where;
768: }
769: $redirect_url .= '/';
770: &redirect_user($r,&mt('Entering Authoring Space'),
771: $redirect_url);
772: return OK;
773: }
774: if ($role eq 'dc') {
775: my $redirect_url = '/adm/menu/';
776: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
777: $redirect_url);
778: return OK;
779: }
780: if ($role eq 'dh') {
781: my $redirect_url = '/adm/menu/';
782: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
783: $redirect_url);
784: return OK;
785: }
786: if ($role eq 'sc') {
787: my $redirect_url = '/adm/grades?command=scantronupload';
788: &redirect_user($r,&mt('Loading Data Upload Page'),
789: $redirect_url);
790: return OK;
791: }
792: }
793: }
794: }
795: }
796:
797:
798: # =============================================================== No Roles Init
799:
800: &Apache::loncommon::content_type($r,'text/html');
801: &Apache::loncommon::no_cache($r);
802: $r->send_http_header;
803: return OK if $r->header_only;
804:
805: my $crumbtext = 'User Roles';
806: my $pagetitle = 'My Roles';
807: my $recent = &mt('Recent Roles');
808: my $standby = &mt('Role selected. Please stand by.');
809: my $show_course=&Apache::loncommon::show_course();
810: if ($show_course) {
811: $crumbtext = 'Courses';
812: $pagetitle = 'My Courses';
813: $recent = &mt('Recent Courses');
814: $standby = &mt('Course selected. Please stand by.');
815: }
816: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
817:
818: my %roles_in_env;
819: my $showcount = &roles_from_env(\%roles_in_env,$update);
820:
821: my $swinfo=&Apache::lonmenu::rawconfig();
822: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
823: my $cattype = 'std';
824: if ($domdefs{'catauth'}) {
825: $cattype = $domdefs{'catauth'};
826: }
827: my $placementonly;
828: if ($showcount == 1) {
829: if ($env{'request.course.id'}) {
830: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
831: $placementonly = 1;
832: }
833: } else {
834: foreach my $rolecode (keys(%roles_in_env)) {
835: my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
836: if ($cid) {
837: my %coursedescription =
838: &Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
839: if ($coursedescription{'type'} eq 'Placement') {
840: $placementonly = 1;
841: }
842: last;
843: }
844: }
845: }
846: }
847: my ($start_page,$funcs);
848: if ($placementonly) {
849: $start_page=&Apache::loncommon::start_page($pagetitle,undef,
850: {bread_crumbs=>$brcrum,crstype=>'Placement'});
851: } else {
852: $funcs = &get_roles_functions($showcount,$cattype);
853: my $crumbsright;
854: if ($env{'browser.mobile'}) {
855: $crumbsright = $funcs;
856: undef($funcs);
857: }
858: $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
859: bread_crumbs_component=>$crumbsright});
860: }
861: &js_escape(\$standby);
862: 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 />';
863:
864: $r->print(<<ENDHEADER);
865: $start_page
866: $funcs
867: <noscript>
868: $noscript
869: </noscript>
870: <script type="text/javascript">
871: // <![CDATA[
872: $swinfo
873: window.focus();
874:
875: active=true;
876:
877: function enterrole (thisform,rolecode,buttonname) {
878: if (active) {
879: active=false;
880: document.title='$standby';
881: window.status='$standby';
882: thisform.newrole.value=rolecode;
883: thisform.submit();
884: } else {
885: alert('$standby');
886: }
887: }
888:
889: function rolesView (caller) {
890: if ((caller == 'showall') || (caller == 'noshowall')) {
891: document.rolechoice.display.value = caller;
892: } else {
893: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
894: (caller == 'queued')) {
895: document.rolechoice.state.value = caller;
896: }
897: }
898: document.rolechoice.selectrole.value='';
899: document.rolechoice.submit();
900: }
901:
902: // ]]>
903: </script>
904: ENDHEADER
905:
906: # ------------------------------------------ Get Error Message from Environment
907:
908: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
909: if ($env{'user.error.msg'}) {
910: $r->log_reason(
911: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
912: }
913:
914: # ------------------------------------------------- Can this user re-init, etc?
915:
916: my $advanced=$env{'user.adv'};
917: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
918: my $tryagain=$env{'form.tryagain'};
919: my $reinit=$env{'user.reinit'};
920: delete $env{'user.reinit'};
921:
922: # -------------------------------------------------------- Generate Page Output
923: # --------------------------------------------------------------- Error Header?
924: if ($error) {
925: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
926: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
927: if ($priv ne '') {
928: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
929: }
930: if ($fn ne '') {
931: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
932: }
933: if ($msg ne '') {
934: $r->print(&mt('Action : ').$msg."\n");
935: }
936: $r->print("</pre><hr />");
937: my $url=$fn;
938: my $last;
939: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
940: &GDBM_READER(),0640)) {
941: $last=$hash{'last_known'};
942: untie(%hash);
943: }
944: if ($last) { $fn.='?symb='.&escape($last); }
945:
946: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
947: &Apache::lonenc::check_encrypt($fn));
948: } else {
949: if ($env{'user.error.msg'}) {
950: if ($reinit) {
951: $r->print(
952: '<h3><span class="LC_error">'.
953: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
954: } else {
955: $r->print(
956: '<h3><span class="LC_error">'.
957: &mt('You need to choose another user role or enter a specific course or community for this function.').
958: '</span></h3>');
959: }
960: }
961: }
962: if ($nochoose) {
963: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
964: &mt('This action is currently not authorized.').'</span>'.
965: &Apache::loncommon::end_page());
966: return OK;
967: } else {
968: if ($updateresult || $reqauthor || $hotlist) {
969: my $showresult = '<div>';
970: if ($updateresult) {
971: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
972: }
973: if ($reqauthor) {
974: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
975: }
976: if ($hotlist) {
977: $showresult .= $hotlist;
978: }
979: $showresult .= '</div>';
980: $r->print($showresult);
981: } elsif ($env{'form.state'} eq 'queued') {
982: $r->print(&get_queued());
983: }
984: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
985: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
986: }
987: my $display = ($env{'form.display'} =~ /^(showall)$/);
988: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
989: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
990: $r->print('<input type="hidden" name="selectrole" value="1" />');
991: $r->print('<input type="hidden" name="newrole" value="" />');
992: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
993: $r->print('<input type="hidden" name="state" value="" />');
994: }
995: $r->rflush();
996:
997: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
998: my ($countactive,$countfuture,$inrole,$possiblerole) =
999: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
1000: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
1001: $refresh = $now;
1002: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
1003: if ($countactive == 1) {
1004: if ($env{'request.course.id'}) {
1005: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
1006: $placementonly = 1;
1007: }
1008: } elsif ($possiblerole) {
1009: if ($possiblerole =~ m{^st\./($match_domain)/($match_courseid)(?:/|$)}) {
1010: if ($env{'course.'.$1.'_'.$2.'.type'} eq 'Placement') {
1011: $placementonly = 1;
1012: }
1013: }
1014: }
1015: }
1016: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'}) &&
1017: (!$placementonly)) {
1018: if ($countactive > 0) {
1019: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1020: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1021: $r->print(
1022: '<p>'
1023: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
1024: .' to view all [_5] LON-CAPA courses and communities.'
1025: ,'<b>'
1026: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1027: ,'</a>'
1028: ,'</b>'
1029: ,'"'.$domdesc.'"')
1030: .'<br />'
1031: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
1032: .' you may be able to enroll if self-enrollment is permitted.'
1033: ,'<b>','</b>')
1034: .'</p>'
1035: );
1036: }
1037: }
1038:
1039: # No active roles
1040: if ($countactive==0) {
1041: &requestcourse_advice($r,$cattype,$inrole);
1042: $r->print('</form>');
1043: if ($countfuture) {
1044: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1045: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1046: $nochoose);
1047: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1048: \%roletext);
1049: my $tremark='';
1050: my $tbg;
1051: if ($env{'request.role'} eq 'cm') {
1052: $tbg="LC_roles_selected";
1053: $tremark=&mt('Currently selected.').' ';
1054: } else {
1055: $tbg="LC_roles_is";
1056: }
1057: $r->print(&Apache::loncommon::start_data_table_row()
1058: .'<td class="'.$tbg.'"> </td>'
1059: .'<td colspan="3">'
1060: .&mt('No role specified')
1061: .'</td>'
1062: .'<td>'.$tremark.' </td>'
1063: .&Apache::loncommon::end_data_table_row()
1064: );
1065:
1066: $r->print(&Apache::loncommon::end_data_table());
1067: }
1068: $r->print(&Apache::loncommon::end_page());
1069: return OK;
1070: } elsif (($placementonly) && ($env{'request.role'} eq 'cm')) {
1071: $r->print('<h3>'.&mt('Please stand by.').'</h3>
1072: <input type="hidden" name="'.$possiblerole.'" value="1" />
1073: <noscript><br />
1074: <input type="submit" name="submit" value="'.&mt('Continue').'" />
1075: </noscript></form>');
1076: $r->rflush();
1077: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
1078: $r->print(&Apache::loncommon::end_page());
1079: return OK;
1080: }
1081: # ----------------------------------------------------------------------- Table
1082:
1083: if (($numdc > 0) || (($numdh > 0) && ($numadhoc > 0))) {
1084: $r->print(&coursepick_jscript());
1085: $r->print(&Apache::loncommon::coursebrowser_javascript().
1086: &Apache::loncommon::authorbrowser_javascript());
1087: }
1088:
1089: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1090: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1091: }
1092: if ($env{'form.destinationurl'}) {
1093: $r->print('<input type="hidden" name="destinationurl" value="'.
1094: $env{'form.destinationurl'}.'" />');
1095: if ($env{'form.destsymb'} ne '') {
1096: $r->print('<input type="hidden" name="destsymb" value="'.
1097: $env{'form.destsymb'}.'" />');
1098: }
1099: }
1100:
1101: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1102: if ($env{'environment.recentroles'}) {
1103: my %recent_roles =
1104: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1105: my $output='';
1106: foreach my $role (sort(keys(%recent_roles))) {
1107: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1108: $output.= &Apache::loncommon::start_data_table_row().
1109: $roletext{'user.role.'.$role}->[0].
1110: &Apache::loncommon::end_data_table_row();
1111: if ($roletext{'user.role.'.$role}->[1] ne '') {
1112: $output .= &Apache::loncommon::continue_data_table_row().
1113: $roletext{'user.role.'.$role}->[1].
1114: &Apache::loncommon::end_data_table_row();
1115: }
1116: if ($role =~ m{^dc\./($match_domain)/$}
1117: && $dcroles{$1}) {
1118: $output .= &adhoc_roles_row($1,'recent');
1119: } elsif ($role =~ m{^dh\./($match_domain)/$}
1120: && ($env{'environment.adhocroles.'.$1} ne '')) {
1121: $output .= &adhoc_customroles_row($1,'recent');
1122: }
1123: } elsif ($numdc > 0) {
1124: unless ($role =~/^error\:/) {
1125: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1126: if ($roletext) {
1127: $output.= &Apache::loncommon::start_data_table_row().
1128: $roletext.
1129: &Apache::loncommon::end_data_table_row();
1130: if ($role_text_end) {
1131: $output .= &Apache::loncommon::continue_data_table_row().
1132: $role_text_end.
1133: &Apache::loncommon::end_data_table_row();
1134: }
1135: }
1136: }
1137: }
1138: }
1139: if ($output) {
1140: $r->print(&Apache::loncommon::start_data_table_empty_row()
1141: .'<td align="center" colspan="5">'
1142: .$recent
1143: .'</td>'
1144: .&Apache::loncommon::end_data_table_empty_row()
1145: );
1146: $r->print($output);
1147: $doheaders ++;
1148: }
1149: }
1150: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1151: if ($countactive > 1) {
1152: my $tremark='';
1153: my $tbg;
1154: if ($env{'request.role'} eq 'cm') {
1155: $tbg="LC_roles_selected";
1156: $tremark=&mt('Currently selected.').' ';
1157: } else {
1158: $tbg="LC_roles_is";
1159: }
1160: $r->print(&Apache::loncommon::start_data_table_row());
1161: unless ($nochoose) {
1162: if ($env{'request.role'} ne 'cm') {
1163: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1164: &mt('Select').'" name="cm" /></td>');
1165: } else {
1166: $r->print('<td class="'.$tbg.'"> </td>');
1167: }
1168: }
1169: $r->print('<td colspan="3">'
1170: .&mt('No role specified')
1171: .'</td>'
1172: .'<td>'.$tremark.' </td>'
1173: .&Apache::loncommon::end_data_table_row()
1174: );
1175: }
1176: $r->print(&Apache::loncommon::end_data_table());
1177: unless ($nochoose) {
1178: $r->print("</form>\n");
1179: }
1180: # ------------------------------------------------------------ Privileges Info
1181: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1182: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1183: $r->print(&privileges_info());
1184: }
1185: my $announcements = &Apache::lonnet::getannounce();
1186: $r->print(
1187: '<br />'.
1188: '<h2>'.&mt('Announcements').'</h2>'.
1189: $announcements
1190: ) unless (!$announcements);
1191: if ($advanced) {
1192: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1193: $r->print('<p><small><i>'
1194: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1195: .'</i></small></p>');
1196: }
1197: $r->print(&Apache::loncommon::end_page());
1198: return OK;
1199: }
1200:
1201: sub roles_from_env {
1202: my ($roleshash,$update) = @_;
1203: my $count = 0;
1204: if (ref($roleshash) eq 'HASH') {
1205: foreach my $envkey (keys(%env)) {
1206: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1207: next if ($1 eq 'gr');
1208: $roleshash->{$envkey} = $env{$envkey};
1209: my ($start,$end) = split(/\./,$env{$envkey});
1210: unless ($end && $end<$update) {
1211: $count ++;
1212: }
1213: }
1214: }
1215: }
1216: return $count;
1217: }
1218:
1219: sub gather_roles {
1220: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1221: $timezones,$loncaparev) = @_;
1222: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1223: my $advanced = $env{'user.adv'};
1224: my $tryagain = $env{'form.tryagain'};
1225: my @ids = &Apache::lonnet::current_machine_ids();
1226: if (ref($roles_in_env) eq 'HASH') {
1227: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1228: my $button = 1;
1229: my $switchserver='';
1230: my $switchwarning;
1231: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1232: $tend,$tremark,$tstatus,$tpstart,$tpend);
1233: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1234: \$trolecode,\$tstatus,\$tstart,\$tend);
1235: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1236: $tremark='';
1237: $tpstart=' ';
1238: $tpend=' ';
1239: if ($env{'request.role'} eq $trolecode) {
1240: $tstatus='selected';
1241: }
1242: my $tbg;
1243: if (($tstatus eq 'is')
1244: || ($tstatus eq 'selected')
1245: || ($tstatus eq 'future')
1246: || ($env{'form.display'} eq 'showall')) {
1247: my $timezone = &role_timezone($where,$timezones);
1248: if ($tstart) {
1249: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1250: }
1251: if ($tend) {
1252: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1253: }
1254: if ($tstatus eq 'is') {
1255: $tbg='LC_roles_is';
1256: $possiblerole=$trolecode;
1257: $countactive++;
1258: } elsif ($tstatus eq 'future') {
1259: $tbg='LC_roles_future';
1260: $button=0;
1261: $futureroles->{$trolecode} = $tstart.':'.$tend;
1262: $countfuture ++;
1263: } elsif ($tstatus eq 'expired') {
1264: $tbg='LC_roles_expired';
1265: $button=0;
1266: } elsif ($tstatus eq 'will_not') {
1267: $tbg='LC_roles_will_not';
1268: $tremark.=&mt('Expired after logout.').' ';
1269: } elsif ($tstatus eq 'selected') {
1270: $tbg='LC_roles_selected';
1271: $inrole=1;
1272: $countactive++;
1273: $tremark.=&mt('Currently selected.').' ';
1274: }
1275: my $trole;
1276: if ($role =~ /^cr\//) {
1277: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1278: if ($tremark) { $tremark.='<br />'; }
1279: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1280: }
1281: $trole=Apache::lonnet::plaintext($role);
1282: my $ttype;
1283: my $twhere;
1284: my $skipcal;
1285: my ($tdom,$trest,$tsection)=
1286: split(/\//,Apache::lonnet::declutter($where));
1287: # First, Co-Authorship roles
1288: if (($role eq 'ca') || ($role eq 'aa')) {
1289: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1290: my $allowed=0;
1291: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1292: if (!$allowed) {
1293: $button=0;
1294: $switchserver='otherserver='.$home.'&role='.$trolecode;
1295: }
1296: #next if ($home eq 'no_host');
1297: $home = &Apache::lonnet::hostname($home);
1298: $ttype='Authoring Space';
1299: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1300: ': '.$tdom.'<br />'.
1301: ' '.&mt('Server').': '.$home;
1302: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1303: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1304: $sortkey=$role."$trest:$tdom";
1305: } elsif ($role eq 'au') {
1306: # Authors
1307: my $home = &Apache::lonnet::homeserver
1308: ($env{'user.name'},$env{'user.domain'});
1309: my $allowed=0;
1310: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1311: if (!$allowed) {
1312: $button=0;
1313: $switchserver='otherserver='.$home.'&role='.$trolecode;
1314: }
1315: #next if ($home eq 'no_host');
1316: $home = &Apache::lonnet::hostname($home);
1317: $ttype='Authoring Space';
1318: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1319: ': '.$home;
1320: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1321: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1322: $sortkey=$role;
1323: } elsif ($trest) {
1324: my $tcourseid=$tdom.'_'.$trest;
1325: $ttype = &Apache::loncommon::course_type($tcourseid);
1326: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1327: if ($env{'course.'.$tcourseid.'.description'}) {
1328: my $home=$env{'course.'.$tcourseid.'.home'};
1329: $twhere=$env{'course.'.$tcourseid.'.description'};
1330: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1331: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1332: unless ($twhere eq &mt('Currently not available')) {
1333: $twhere.=' <span class="LC_fontsize_small">'.
1334: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1335: '</span>';
1336: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1337: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1338: if ($required ne '') {
1339: ($switchserver,$switchwarning) =
1340: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1341: if ($switchserver || $switchwarning) {
1342: $button = 0;
1343: }
1344: }
1345: }
1346: }
1347: } else {
1348: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1349: if (%newhash) {
1350: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1351: "\0".$envkey;
1352: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1353: ' <span class="LC_fontsize_small">'.
1354: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1355: '</span>';
1356: $ttype = $newhash{'type'};
1357: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1358: my $home = $newhash{'home'};
1359: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1360: my $required = $newhash{'internal.releaserequired'};
1361: if ($required ne '') {
1362: ($switchserver,$switchwarning) =
1363: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1364: if ($switchserver || $switchwarning) {
1365: $button = 0;
1366: }
1367: }
1368: }
1369: } else {
1370: $twhere=&mt('Currently not available');
1371: $env{'course.'.$tcourseid.'.description'}=$twhere;
1372: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1373: $ttype = 'Unavailable';
1374: $skipcal = 1;
1375: }
1376: }
1377: if ($ttype eq 'Placement') {
1378: $ttype = 'Placement Test';
1379: }
1380: if ($tsection) {
1381: $twhere.='<br />'.&mt('Section').': '.$tsection;
1382: }
1383: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1384: } elsif ($tdom) {
1385: $ttype='Domain';
1386: $twhere=$tdom;
1387: $sortkey=$role.$twhere;
1388: } else {
1389: $ttype='System';
1390: $twhere=&mt('system wide');
1391: $sortkey=$role.$twhere;
1392: }
1393: ($role_text,$role_text_end) =
1394: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1395: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1396: $tpend,$nochoose,$button,$switchserver,$reinit,
1397: $switchwarning,$skipcal);
1398: $roletext->{$envkey}=[$role_text,$role_text_end];
1399: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1400: $sortrole->{$sortkey}=$envkey;
1401: $roleclass->{$envkey}=$ttype;
1402: }
1403: }
1404: }
1405: return ($countactive,$countfuture,$inrole,$possiblerole);
1406: }
1407:
1408: sub role_timezone {
1409: my ($where,$timezones) = @_;
1410: my $timezone;
1411: if (ref($timezones) eq 'HASH') {
1412: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1413: my $cdom = $1;
1414: my $cnum = $2;
1415: if ($cdom && $cnum) {
1416: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1417: my $tz;
1418: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1419: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1420: } else {
1421: my %timehash =
1422: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1423: $tz = $timehash{'timezone'};
1424: }
1425: if ($tz eq '') {
1426: if (!exists($timezones->{$cdom})) {
1427: my %domdefaults =
1428: &Apache::lonnet::get_domain_defaults($cdom);
1429: if ($domdefaults{'timezone_def'} eq '') {
1430: $timezones->{$cdom} = 'local';
1431: } else {
1432: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1433: }
1434: }
1435: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1436: } else {
1437: $timezones->{$cdom.'_'.$cnum} =
1438: &Apache::lonlocal::gettimezone($tz);
1439: }
1440: }
1441: $timezone = $timezones->{$cdom.'_'.$cnum};
1442: }
1443: } else {
1444: my ($tdom) = ($where =~ m{^/($match_domain)});
1445: if ($tdom) {
1446: if (!exists($timezones->{$tdom})) {
1447: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1448: if ($domdefaults{'timezone_def'} eq '') {
1449: $timezones->{$tdom} = 'local';
1450: } else {
1451: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1452: }
1453: }
1454: $timezone = $timezones->{$tdom};
1455: }
1456: }
1457: if ($timezone eq 'local') {
1458: $timezone = undef;
1459: }
1460: }
1461: return $timezone;
1462: }
1463:
1464: sub roletable_headers {
1465: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1466: my $doheaders;
1467: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1468: $r->print('<br />'
1469: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1470: .&Apache::loncommon::start_data_table_header_row()
1471: );
1472: if (!$nochoose) { $r->print('<th> </th>'); }
1473: $r->print('<th>'.&mt('User Role').'</th>'
1474: .'<th>'.&mt('Extent').'</th>'
1475: .'<th>'.&mt('Start').'</th>'
1476: .'<th>'.&mt('End').'</th>'
1477: .&Apache::loncommon::end_data_table_header_row()
1478: );
1479: $doheaders=-1;
1480: my @roletypes = &roletypes();
1481: foreach my $type (@roletypes) {
1482: my $haverole=0;
1483: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1484: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1485: $haverole=1;
1486: }
1487: }
1488: if ($haverole) { $doheaders++; }
1489: }
1490: }
1491: return $doheaders;
1492: }
1493:
1494: sub roletypes {
1495: my @types = ('Domain','Authoring Space','Course','Placement Test','Community','Unavailable','System');
1496: return @types;
1497: }
1498:
1499: sub print_rolerows {
1500: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1501: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1502: my @types = &roletypes();
1503: foreach my $type (@types) {
1504: my $output;
1505: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1506: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1507: if (ref($roletext) eq 'HASH') {
1508: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1509: $output.= &Apache::loncommon::start_data_table_row().
1510: $roletext->{$sortrole->{$which}}->[0].
1511: &Apache::loncommon::end_data_table_row();
1512: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1513: $output .= &Apache::loncommon::continue_data_table_row().
1514: $roletext->{$sortrole->{$which}}->[1].
1515: &Apache::loncommon::end_data_table_row();
1516: }
1517: }
1518: if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
1519: if (ref($dcroles) eq 'HASH') {
1520: if ($dcroles->{$1}) {
1521: $output .= &adhoc_roles_row($1,'');
1522: }
1523: }
1524: } elsif (($sortrole->{$which} =~ m{^user\.role\.dh\./($match_domain)/}) &&
1525: ($env{'environment.adhocroles.'.$1} ne '')) {
1526: $output .= &adhoc_customroles_row($1,'');
1527: }
1528: }
1529: }
1530: }
1531: if ($output) {
1532: if ($doheaders > 0) {
1533: $r->print(&Apache::loncommon::start_data_table_empty_row()
1534: .'<td align="center" colspan="5">'
1535: .&mt($type)
1536: .'</td>'
1537: .&Apache::loncommon::end_data_table_empty_row()
1538: );
1539: }
1540: $r->print($output);
1541: }
1542: }
1543: }
1544: }
1545:
1546: sub findcourse_advice {
1547: my ($r,$cattype) = @_;
1548: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1549: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1550: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1551: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1552: <ul>
1553: <li>'.&mt('The course has yet to be created.').'</li>
1554: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1555: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1556: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1557: <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>
1558: </ul>');
1559: } else {
1560: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1561: }
1562: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1563: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1564: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1565: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1566: &Apache::loncoursequeueadmin::queued_selfenrollment());
1567: }
1568: return;
1569: }
1570:
1571: sub requestcourse_advice {
1572: my ($r,$cattype,$inrole) = @_;
1573: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1574: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1575: my (%can_request,%request_doms,$output);
1576: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1577: if (keys(%request_doms) > 0) {
1578: my ($types,$typename) = &Apache::loncommon::course_types();
1579: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1580: my (@reqdoms,@reqtypes);
1581: foreach my $type (sort(keys(%request_doms))) {
1582: push(@reqtypes,$type);
1583: if (ref($request_doms{$type}) eq 'ARRAY') {
1584: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1585: $output .=
1586: '<li>'
1587: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1588: '<i>',
1589: '</i>',
1590: '<b>'.$domstr.'</b>')
1591: .'</li>';
1592: foreach my $dom (@{$request_doms{$type}}) {
1593: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1594: push(@reqdoms,$dom);
1595: }
1596: }
1597: }
1598: }
1599: my @showtypes;
1600: foreach my $type (@{$types}) {
1601: if (grep(/^\Q$type\E$/,@reqtypes)) {
1602: push(@showtypes,$type);
1603: }
1604: }
1605: my $requrl = '/adm/requestcourse';
1606: if (@reqdoms == 1) {
1607: $requrl .= '?showdom='.$reqdoms[0];
1608: }
1609: if (@showtypes > 0) {
1610: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1611: }
1612: if (@reqdoms == 1 || @showtypes > 0) {
1613: $requrl .= '&state=crstype&action=new';
1614: }
1615: if ($output) {
1616: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1617: '<p>'.
1618: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1619: '<ul>'.
1620: $output.
1621: '</ul>'.
1622: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1623: '<a href="'.$requrl.'">','</a>').
1624: '</p>');
1625: }
1626: }
1627: } elsif (!$env{'user.adv'}) {
1628: if ($inrole) {
1629: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1630: } else {
1631: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1632: }
1633: &findcourse_advice($r,$cattype);
1634: }
1635: return;
1636: }
1637:
1638: sub privileges_info {
1639: my ($which) = @_;
1640: my $output;
1641:
1642: $which ||= $env{'request.role'};
1643:
1644: foreach my $envkey (sort(keys(%env))) {
1645: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1646:
1647: my $where=$1;
1648: my $ttype;
1649: my $twhere;
1650: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1651: if ($trest) {
1652: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1653: $ttype='Authoring Space';
1654: $twhere='User: '.$trest.', Domain: '.$tdom;
1655: } else {
1656: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1657: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1658: if ($tsec) {
1659: my $sec_type = 'Section';
1660: if (exists($env{"user.role.gr.$where"})) {
1661: $sec_type = 'Group';
1662: }
1663: $twhere.=' ('.$sec_type.': '.$tsec.')';
1664: }
1665: }
1666: } elsif ($tdom) {
1667: $ttype='Domain';
1668: $twhere=$tdom;
1669: } else {
1670: $ttype='System';
1671: $twhere='/';
1672: }
1673: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1674: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1675: next if (!$priv);
1676:
1677: my ($prv,$restr)=split(/\&/,$priv);
1678: my $trestr='';
1679: if ($restr ne 'F') {
1680: $trestr.=' ('.
1681: join(', ',
1682: map { &Apache::lonnet::plaintext($_) }
1683: (split('',$restr))).') ';
1684: }
1685: $output .= "\n\t".
1686: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1687: }
1688: $output .= "\n".'</ul>';
1689: }
1690: return $output;
1691: }
1692:
1693: sub build_roletext {
1694: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
1695: $tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning,$skipcal) = @_;
1696: my ($roletext,$roletext_end);
1697: my $is_dc=($trolecode =~ m/^dc\./);
1698: my $rowspan=($is_dc) ? ''
1699: : ' rowspan="2" ';
1700:
1701: unless ($nochoose) {
1702: my $buttonname=$trolecode;
1703: $buttonname=~s/\W//g;
1704: if (!$button) {
1705: if ($switchserver) {
1706: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1707: .'<a href="/adm/switchserver?'.$switchserver.'">'
1708: .&mt('Switch Server')
1709: .'</a></td>';
1710: } else {
1711: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1712: }
1713: if ($switchwarning) {
1714: if ($tremark eq '') {
1715: $tremark = $switchwarning;
1716: } else {
1717: $tremark .= '<br />'.$switchwarning;
1718: }
1719: }
1720: } elsif ($tstatus eq 'is') {
1721: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1722: '<input name="'.$buttonname.'" type="button" value="'.
1723: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1724: $trolecode."','".$buttonname.'\');" /></td>';
1725: } elsif ($tryagain) {
1726: $roletext.=
1727: '<td'.$rowspan.' class="'.$tbg.'">'.
1728: '<input name="'.$buttonname.'" type="button" value="'.
1729: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1730: $trolecode."','".$buttonname.'\');" /></td>';
1731: } elsif ($advanced) {
1732: $roletext.=
1733: '<td'.$rowspan.' class="'.$tbg.'">'.
1734: '<input name="'.$buttonname.'" type="button" value="'.
1735: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1736: $trolecode."','".$buttonname.'\');" /></td>';
1737: } elsif ($reinit) {
1738: $roletext.=
1739: '<td'.$rowspan.' class="'.$tbg.'">'.
1740: '<input name="'.$buttonname.'" type="button" value="'.
1741: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1742: $trolecode."','".$buttonname.'\');" /></td>';
1743: } else {
1744: $roletext.=
1745: '<td'.$rowspan.' class="'.$tbg.'">'.
1746: '<input name="'.$buttonname.'" type="button" value="'.
1747: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1748: $trolecode."','".$buttonname.'\');" /></td>';
1749: }
1750: }
1751: if (($trolecode !~ m/^(dc|ca|au|aa)\./) && (!$skipcal)) {
1752: $tremark.=&Apache::lonannounce::showday(time,1,
1753: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1754: }
1755: $roletext.='<td>'.$trole.'</td>'
1756: .'<td>'.$twhere.'</td>'
1757: .'<td>'.$tpstart.'</td>'
1758: .'<td>'.$tpend.'</td>';
1759: if (!$is_dc) {
1760: $roletext_end = '<td colspan="4">'.
1761: $tremark.' '.
1762: '</td>';
1763: }
1764: return ($roletext,$roletext_end);
1765: }
1766:
1767: sub check_author_homeserver {
1768: my ($uname,$udom)=@_;
1769: if (($uname eq '') || ($udom eq '')) {
1770: return ('fail','');
1771: }
1772: my $home = &Apache::lonnet::homeserver($uname,$udom);
1773: if (&Apache::lonnet::host_domain($home) ne $udom) {
1774: return ('fail',$home);
1775: }
1776: my @ids=&Apache::lonnet::current_machine_ids();
1777: if (grep(/^\Q$home\E$/,@ids)) {
1778: return ('ok',$home);
1779: } else {
1780: return ('switchserver',$home);
1781: }
1782: }
1783:
1784: sub check_for_adhoc {
1785: my ($dcroles,$dhroles,$update,$then) = @_;
1786: my $numdc = 0;
1787: my $numdh = 0;
1788: my $numadhoc = 0;
1789: my $num_custom_adhoc = 0;
1790: if ($env{'user.adv'}) {
1791: foreach my $envkey (sort(keys(%env))) {
1792: if ($envkey=~/^user\.role\.(dc|dh)\.\/($match_domain)\/$/) {
1793: my $role = $1;
1794: my $roledom = $2;
1795: my $liverole = 1;
1796: my ($tstart,$tend)=split(/\./,$env{$envkey});
1797: my $limit = $update;
1798: if ((($role eq 'dc') && ($env{'request.role'} eq 'dc./'.$roledom.'/')) ||
1799: (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$roledom.'/'))) {
1800: $limit = $then;
1801: }
1802: if ($tstart && $tstart>$limit) { $liverole = 0; }
1803: if ($tend && $tend <$limit) { $liverole = 0; }
1804: if ($liverole) {
1805: if ($role eq 'dc') {
1806: $dcroles->{$roledom} = $envkey;
1807: $numdc++;
1808: } else {
1809: $dhroles->{$roledom} = $envkey;
1810: if ($env{'environment.adhocroles.'.$roledom} ne '') {
1811: $numadhoc ++;
1812: }
1813: $numdh++;
1814: }
1815: }
1816: }
1817: }
1818: }
1819: return ($numdc,$numdh,$numadhoc);
1820: }
1821:
1822: sub adhoc_course_role {
1823: my ($refresh,$update,$then) = @_;
1824: my ($cdom,$cnum,$crstype);
1825: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1826: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1827: $crstype = &Apache::loncommon::course_type();
1828: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1829: my $setprivs;
1830: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1831: $setprivs = 1;
1832: } else {
1833: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1834: if (($start && ($start>$refresh || $start == -1)) ||
1835: ($end && $end<$update)) {
1836: $setprivs = 1;
1837: }
1838: }
1839: unless ($setprivs) {
1840: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1841: $setprivs = 1;
1842: }
1843: }
1844: if ($setprivs) {
1845: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1846: my $role = $1;
1847: my $custom_role = $2;
1848: my $usec = $3;
1849: if ($role eq 'cr') {
1850: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1851: $role .= $custom_role;
1852: } else {
1853: return;
1854: }
1855: }
1856: my (%userroles,%newrole,%newgroups,%group_privs);
1857: my %cgroups =
1858: &Apache::lonnet::get_active_groups($env{'user.domain'},
1859: $env{'user.name'},$cdom,$cnum);
1860: foreach my $group (keys(%cgroups)) {
1861: $group_privs{$group} =
1862: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1863: }
1864: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1865: my $area = '/'.$cdom.'/'.$cnum;
1866: my $spec = $role.'.'.$area;
1867: if ($usec ne '') {
1868: $spec .= '/'.$usec;
1869: $area .= '/'.$usec;
1870: }
1871: if ($role =~ /^cr/) {
1872: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1873: } else {
1874: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1875: }
1876: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1877: my $adhocstart = $refresh-1;
1878: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1879: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1880: }
1881: }
1882: }
1883: return;
1884: }
1885:
1886: sub check_forcc {
1887: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1888: my ($is_cc,$ccrole);
1889: if ($crstype eq 'Community') {
1890: $ccrole = 'co';
1891: } else {
1892: $ccrole = 'cc';
1893: }
1894: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1895: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1896: if (defined($env{$envkey})) {
1897: $is_cc = 1;
1898: my ($tstart,$tend)=split(/\./,$env{$envkey});
1899: my $limit = $update;
1900: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1901: $limit = $then;
1902: }
1903: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1904: if ($tend && $tend <$limit) { $is_cc = 0; }
1905: }
1906: }
1907: return $is_cc;
1908: }
1909:
1910: sub courselink {
1911: my ($roledom,$rowtype,$role) = @_;
1912: my $courseform=&Apache::loncommon::selectcourse_link
1913: ('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
1914: 'domain'.$rowtype.'_'.$roledom.'_'.$role,
1915: 'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
1916: $roledom.':'.$role,undef,'Course/Community');
1917: my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1918: '<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1919: '<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
1920: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
1921: return $courseform.$hiddenitems;
1922: }
1923:
1924: sub coursepick_jscript {
1925: my %js_lt = &Apache::lonlocal::texthash(
1926: 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.",
1927: youc => 'You can only use this screen to select courses and communities in the current domain.',
1928: );
1929: &js_escape(\%js_lt);
1930: my $verify_script = <<"END";
1931: <script type="text/javascript">
1932: // <![CDATA[
1933: function verifyCoursePick(caller) {
1934: var numbutton = getIndex(caller)
1935: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1936: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1937: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1938: if (pickedCourse != '') {
1939: if (numbutton != -1) {
1940: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1941: document.rolechoice.elements[numbutton+1].name = courseTarget
1942: document.rolechoice.submit()
1943: }
1944: }
1945: else {
1946: alert("$js_lt{'plsu'}");
1947: }
1948: }
1949: else {
1950: alert("$js_lt{'youc'}")
1951: }
1952: }
1953: function getIndex(caller) {
1954: for (var i=0;i<document.rolechoice.elements.length;i++) {
1955: if (document.rolechoice.elements[i] == caller) {
1956: return i;
1957: }
1958: }
1959: return -1;
1960: }
1961: // ]]>
1962: </script>
1963: END
1964: return $verify_script;
1965: }
1966:
1967: sub coauthorlink {
1968: my ($dcdom,$rowtype) = @_;
1969: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1970: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1971: return $coauthorform.$hiddenitems;
1972: }
1973:
1974: sub display_cc_role {
1975: my $rolekey = shift;
1976: my ($roletext,$roletext_end);
1977: my $advanced = $env{'user.adv'};
1978: my $tryagain = $env{'form.tryagain'};
1979: unless ($rolekey =~/^error\:/) {
1980: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1981: my $ccrole = $1;
1982: my $tdom = $2;
1983: my $trest = $3;
1984: my $tcourseid = $tdom.'_'.$trest;
1985: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1986: my $twhere;
1987: my $ttype;
1988: my $skipcal;
1989: my $tbg='LC_roles_is';
1990: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1991: if (%newhash) {
1992: $twhere=$newhash{'description'}.
1993: ' <span class="LC_fontsize_small">'.
1994: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1995: '</span>';
1996: $ttype = $newhash{'type'};
1997: } else {
1998: $twhere=&mt('Currently not available');
1999: $env{'course.'.$tcourseid.'.description'}=$twhere;
2000: $skipcal = 1;
2001: }
2002: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
2003: $twhere.="<br />".&mt('Domain').":".$tdom;
2004: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'','','',$skipcal);
2005: }
2006: }
2007: return ($roletext,$roletext_end);
2008: }
2009:
2010: sub adhoc_roles_row {
2011: my ($dcdom,$rowtype) = @_;
2012: my $output = &Apache::loncommon::continue_data_table_row()
2013: .' <td colspan="5" class="LC_textsize_mobile">'
2014: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
2015: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
2016: .' ';
2017: my $role = 'cc';
2018: my $selectcclink = &courselink($dcdom,$rowtype,$role);
2019: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
2020: my $carole = &Apache::lonnet::plaintext('ca');
2021: my $selectcalink = &coauthorlink($dcdom,$rowtype);
2022: $output.=$ccrole.': '.$selectcclink
2023: .' | '.$carole.': '.$selectcalink.'</td>'
2024: .&Apache::loncommon::end_data_table_row();
2025: return $output;
2026: }
2027:
2028: sub adhoc_customroles_row {
2029: my ($dhdom,$rowtype) = @_;
2030: my $output = &Apache::loncommon::continue_data_table_row()
2031: .' <td colspan="5" class="LC_textsize_mobile">'
2032: .&mt('[_1]Ad hoc[_2] course/community roles in domain [_3] --',
2033: '<span class="LC_cusr_emph">','</span>',$dhdom);
2034: my @customroles = split(/,/,$env{'environment.adhocroles.'.$dhdom});
2035: my $count = 0;
2036: foreach my $role (@customroles) {
2037: next if (($role eq '') || ($role =~ /\W/));
2038: $output .= ' '.$role.': '.&courselink($dhdom,$rowtype,$role).' |';
2039: $count ++;
2040: }
2041: if ($count) {
2042: return $output;
2043: }
2044: return;
2045: }
2046:
2047: sub recent_filename {
2048: my $area=shift;
2049: return 'nohist_recent_'.&escape($area);
2050: }
2051:
2052: sub courseloadpage {
2053: my ($courseid) = @_;
2054: my $startpage;
2055: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
2056: [$courseid.':courseinit']);
2057: my ($tmp) = %entry_settings;
2058: unless ($tmp =~ /^error: 2 /) {
2059: $startpage = $entry_settings{$courseid.':courseinit'};
2060: }
2061: if ($startpage eq '') {
2062: if (exists($env{'environment.course_init_display'})) {
2063: $startpage = $env{'environment.course_init_display'};
2064: }
2065: }
2066: return $startpage;
2067: }
2068:
2069: sub update_session_roles {
2070: my $then=$env{'user.login.time'};
2071: my $refresh=$env{'user.refresh.time'};
2072: if (!$refresh) {
2073: $refresh = $then;
2074: }
2075: my $update = $env{'user.update.time'};
2076: if (!$update) {
2077: $update = $then;
2078: }
2079: my $now = time;
2080: my %roleshash =
2081: &Apache::lonnet::get_my_roles('','','userroles',
2082: ['active','future','previous'],
2083: undef,undef,1);
2084: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2085: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2086: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2087: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2088: @rolecodes);
2089: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2090: my %courseroles;
2091: foreach my $item (keys(%roleshash)) {
2092: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2093: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2094: my ($section,$group,@group_privs);
2095: if ($role =~ m{^gr/(\w*)$}) {
2096: $role = 'gr';
2097: my $priv = $1;
2098: next if ($tstart eq '-1');
2099: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2100: if ($priv ne '') {
2101: push(@group_privs,$priv);
2102: }
2103: }
2104: if ($remainder =~ /:/) {
2105: (my $additional_privs,$group) =
2106: ($remainder =~ /^([\w:]+):([^:]+)$/);
2107: if ($additional_privs ne '') {
2108: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2109: push(@group_privs,split(/:/,$additional_privs));
2110: @group_privs = sort(@group_privs);
2111: }
2112: }
2113: } else {
2114: $group = $remainder;
2115: }
2116: } else {
2117: $section = $remainder;
2118: }
2119: my $where = "/$udom/$uname";
2120: if ($section ne '') {
2121: $where .= "/$section";
2122: } elsif ($group ne '') {
2123: $where .= "/$group";
2124: }
2125: my $rolekey = "$role.$where";
2126: my $envkey = "user.role.$rolekey";
2127: $dbroles{$envkey} = 1;
2128: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2129: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2130: $currrole_expired = 1;
2131: }
2132: }
2133: if ($env{$envkey} eq '') {
2134: my $status_in_db =
2135: &curr_role_status($tstart,$tend,$now,$now);
2136: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2137: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2138: if ($status_in_db eq 'active') {
2139: if ($section eq '') {
2140: push(@newsec,'none');
2141: } else {
2142: push(@newsec,$section);
2143: }
2144: }
2145: } else {
2146: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2147: push(@changed_roles,$role);
2148: }
2149: if ($status_in_db ne 'previous') {
2150: if ($role eq 'gr') {
2151: $newgroup{$rolekey} = $status_in_db;
2152: if ($status_in_db eq 'active') {
2153: unless (ref($courseroles{$udom}) eq 'HASH') {
2154: %{$courseroles{$udom}} =
2155: &Apache::lonnet::get_my_roles('','','userroles',
2156: ['active'],\@possroles,
2157: [$udom],1);
2158: }
2159: &Apache::lonnet::get_groups_roles($udom,$uname,
2160: $courseroles{$udom},
2161: \@rolecodes,\%groups_roles);
2162: }
2163: } else {
2164: $newrole{$rolekey} = $status_in_db;
2165: }
2166: }
2167: }
2168: } else {
2169: my ($currstart,$currend) = split(/\./,$env{$envkey});
2170: if ($role eq 'gr') {
2171: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2172: $hasgroups = 1;
2173: }
2174: }
2175: if (($currstart ne $tstart) || ($currend ne $tend)) {
2176: my $status_in_env =
2177: &curr_role_status($currstart,$currend,$refresh,$update);
2178: my $status_in_db =
2179: &curr_role_status($tstart,$tend,$now,$now);
2180: if ($status_in_env ne $status_in_db) {
2181: if ($status_in_env eq 'active') {
2182: if ($role eq 'st') {
2183: if ($env{'request.role'} eq $rolekey) {
2184: my $switchsection;
2185: unless (ref($courseroles{$udom}) eq 'HASH') {
2186: %{$courseroles{$udom}} =
2187: &Apache::lonnet::get_my_roles('','','userroles',
2188: ['active'],
2189: \@possroles,[$udom],1);
2190: }
2191: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2192: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2193: $switchsection = 1;
2194: last;
2195: }
2196: }
2197: if ($switchsection) {
2198: if ($section eq '') {
2199: $oldsec = 'none';
2200: } else {
2201: $oldsec = $section;
2202: }
2203: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2204: } else {
2205: $currrole_expired = 1;
2206: next;
2207: }
2208: }
2209: }
2210: unless ($rolekey eq $env{'request.role'}) {
2211: if ($role eq 'gr') {
2212: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2213: } else {
2214: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2215: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2216: }
2217: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2218: }
2219: } elsif ($status_in_db eq 'active') {
2220: if (($role eq 'st') &&
2221: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2222: if ($section eq '') {
2223: push(@newsec,'none');
2224: } else {
2225: push(@newsec,$section);
2226: }
2227: } elsif ($role eq 'gr') {
2228: unless (ref($courseroles{$udom}) eq 'HASH') {
2229: %{$courseroles{$udom}} =
2230: &Apache::lonnet::get_my_roles('','','userroles',
2231: ['active'],
2232: \@possroles,[$udom],1);
2233: }
2234: &Apache::lonnet::get_groups_roles($udom,$uname,
2235: $courseroles{$udom},
2236: \@rolecodes,\%groups_roles);
2237: }
2238: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2239: }
2240: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2241: push(@changed_roles,$role);
2242: }
2243: if ($role eq 'gr') {
2244: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2245: } else {
2246: $rolechange{$rolekey} = $status_in_db;
2247: }
2248: }
2249: } else {
2250: if ($role eq 'gr') {
2251: unless ($checkedgroup{$where}) {
2252: my $status_in_db =
2253: &curr_role_status($tstart,$tend,$refresh,$now);
2254: if ($tstart eq '-1') {
2255: $status_in_db = 'deleted';
2256: }
2257: unless (ref($courseroles{$udom}) eq 'HASH') {
2258: %{$courseroles{$udom}} =
2259: &Apache::lonnet::get_my_roles('','','userroles',
2260: ['active'],
2261: \@possroles,[$udom],1);
2262: }
2263: if (ref($courseroles{$udom}) eq 'HASH') {
2264: foreach my $item (keys(%{$courseroles{$udom}})) {
2265: next unless ($item =~ /^\Q$uname\E/);
2266: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2267: my $area = '/'.$cdom.'/'.$cnum;
2268: if ($crssec ne '') {
2269: $area .= '/'.$crssec;
2270: }
2271: my $crsrolekey = $crsrole.'.'.$area;
2272: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2273: $currprivs =~ s/^://;
2274: $currprivs =~ s/\&F$//;
2275: my @curr_grp_privs = split(/\&F:/,$currprivs);
2276: @curr_grp_privs = sort(@curr_grp_privs);
2277: my @diffs;
2278: if (@group_privs > 0 || @curr_grp_privs > 0) {
2279: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2280: }
2281: if (@diffs == 0) {
2282: last;
2283: } else {
2284: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2285: push(@rolecodes,'gr');
2286: }
2287: &gather_roleprivs(\%allroles,\%allgroups,
2288: \%userroles,$where,$role,
2289: $tstart,$tend,$status_in_db);
2290: if ($status_in_db eq 'active') {
2291: &Apache::lonnet::get_groups_roles($udom,$uname,
2292: $courseroles{$udom},
2293: \@rolecodes,\%groups_roles);
2294: }
2295: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2296: last;
2297: }
2298: }
2299: }
2300: $checkedgroup{$where} = 1;
2301: }
2302: } elsif ($role =~ /^cr/) {
2303: my $status_in_db =
2304: &curr_role_status($tstart,$tend,$refresh,$now);
2305: my ($rdummy,$rest) = split(/\//,$role,2);
2306: my %currpriv;
2307: unless (exists($crprivs{$rest})) {
2308: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2309: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2310: if (&Apache::lonnet::hostname($homsvr) ne '') {
2311: my ($rdummy,$roledef)=
2312: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2313: $rdomain,$rauthor);
2314: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2315: my $i = 0;
2316: my @scopes = ('sys','dom','crs');
2317: my @privs = split(/\_/,$roledef);
2318: foreach my $priv (@privs) {
2319: my ($blank,@prv) = split(/:/,$priv);
2320: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2321: if (@prv) {
2322: $priv = ':'.join(':',sort(@prv));
2323: }
2324: $crprivs{$rest}{$scopes[$i]} = $priv;
2325: $i++;
2326: }
2327: }
2328: }
2329: }
2330: my $status_in_env =
2331: &curr_role_status($currstart,$currend,$refresh,$update);
2332: if ($status_in_env eq 'active') {
2333: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2334: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2335: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2336: if (keys(%crprivs)) {
2337: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2338: ($crprivs{$rest}{dom} ne $currpriv{dom})
2339: ||
2340: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2341: &gather_roleprivs(\%allroles,\%allgroups,
2342: \%userroles,$where,$role,
2343: $tstart,$tend,$status_in_db);
2344: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2345: push(@changed_roles,$role);
2346: }
2347: $customprivchg{$rolekey} = $status_in_env;
2348: }
2349: }
2350: }
2351: }
2352: }
2353: }
2354: }
2355: foreach my $envkey (keys(%env)) {
2356: next unless ($envkey =~ /^user\.role\./);
2357: next if ($dbroles{$envkey});
2358: next if ($envkey eq 'user.role.'.$env{'request.role'});
2359: my ($currstart,$currend) = split(/\./,$env{$envkey});
2360: my $status_in_env =
2361: &curr_role_status($currstart,$currend,$refresh,$update);
2362: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2363: my ($role,$rest)=split(m{\./},$rolekey,2);
2364: $rest = '/'.$rest;
2365: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2366: if ($status_in_env eq 'active') {
2367: if ($role eq 'gr') {
2368: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2369: \@possroles);
2370: } else {
2371: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2372: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2373: }
2374: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2375: push(@changed_roles,$role);
2376: }
2377: $deletedroles{$rolekey} = 1;
2378: }
2379: }
2380: }
2381: if (($oldsec) && (@newsec > 0)) {
2382: if (@newsec > 1) {
2383: $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>';
2384: } else {
2385: my $newrole = $env{'request.role'};
2386: if ($newsec[0] eq 'none') {
2387: $newrole =~ s{(/[^/])$}{};
2388: } elsif ($oldsec eq 'none') {
2389: $newrole .= '/'.$newsec[0];
2390: } else {
2391: $newrole =~ s{([^/]+)$}{$newsec[0]};
2392: }
2393: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2394: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2395: my %temp=('logout_'.$env{'request.course.id'} => time);
2396: &Apache::lonnet::put('email_status',\%temp);
2397: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2398: &Apache::lonnet::appenv({"request.course.id" => '',
2399: "request.course.fn" => '',
2400: "request.course.uri" => '',
2401: "request.course.sec" => '',
2402: "request.role" => 'cm',
2403: "request.role.adv" => $env{'user.adv'},
2404: "request.role.domain" => $env{'user.domain'}});
2405: my $rolename = &Apache::loncommon::plainname($curr_role);
2406: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2407: '<input type="hidden" name="newrole" value="" />'.
2408: '<input type="hidden" name="selectrole" value="1" />'.
2409: '<span class="LC_info">'.
2410: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2411: my $button = '<input type="button" name="sectionchanged" value="'.
2412: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2413: if ($newsec[0] eq 'none') {
2414: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2415: } else {
2416: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2417: }
2418: $msg .= '</form></p>';
2419: }
2420: } elsif ($currrole_expired) {
2421: $msg .= '<p class="LC_warning">';
2422: if (&Apache::loncommon::show_course()) {
2423: $msg .= &mt('Your role in the current course has expired.');
2424: } else {
2425: $msg .= &mt('Your current role has expired.');
2426: }
2427: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2428: }
2429: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2430: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2431: $curr_author = $env{'user.author'};
2432: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2433: ($env{'request.role'} =~/^aa/)) {
2434: $curr_role_author=1;
2435: }
2436: $curr_is_adv = $env{'user.adv'};
2437: $curr_role_adv = $env{'request.role.adv'};
2438: if (keys(%userroles) > 0) {
2439: foreach my $role (@changed_roles) {
2440: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2441: push(@rolecodes,$role);
2442: }
2443: }
2444: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2445: push(@rolecodes,'cm');
2446: }
2447: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2448: }
2449: my %newenv;
2450: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2451: unless ($curr_is_adv) {
2452: $newenv{'user.adv'} = 1;
2453: }
2454: } elsif ($curr_is_adv && !$curr_role_adv) {
2455: &Apache::lonnet::delenv('user.adv');
2456: }
2457: my %authorroleshash =
2458: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2459: if (keys(%authorroleshash)) {
2460: unless ($curr_author) {
2461: $newenv{'user.author'} = 1;
2462: }
2463: } elsif ($curr_author && !$curr_role_author) {
2464: &Apache::lonnet::delenv('user.author');
2465: }
2466: if ($env{'request.course.id'}) {
2467: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2468: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2469: my (@activecrsgroups,$crsgroupschanged);
2470: if ($env{'request.course.groups'}) {
2471: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2472: foreach my $item (keys(%deletedroles)) {
2473: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2474: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2475: $crsgroupschanged = 1;
2476: last;
2477: }
2478: }
2479: }
2480: }
2481: unless ($crsgroupschanged) {
2482: foreach my $item (keys(%newgroup)) {
2483: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2484: if ($newgroup{$item} eq 'active') {
2485: $crsgroupschanged = 1;
2486: last;
2487: }
2488: }
2489: }
2490: }
2491: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2492: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2493: ($crsgroupschanged)) {
2494: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2495: ['active'],['gr'],[$cdom],1);
2496: my @activegroups;
2497: foreach my $item (keys(%grouproles)) {
2498: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2499: my $group;
2500: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2501: if ($remainder =~ /:/) {
2502: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2503: } else {
2504: $group = $remainder;
2505: }
2506: if ($group ne '') {
2507: push(@activegroups,$group);
2508: }
2509: }
2510: $newenv{'request.course.groups'} = join(':',@activegroups);
2511: }
2512: }
2513: if (keys(%newenv)) {
2514: &Apache::lonnet::appenv(\%newenv);
2515: }
2516: if (!@changed_roles || !(keys(%changed_groups))) {
2517: my ($rolesmsg,$groupsmsg);
2518: if (!@changed_roles) {
2519: if (&Apache::loncommon::show_course()) {
2520: $rolesmsg = &mt('No new courses or communities');
2521: } else {
2522: $rolesmsg = &mt('No role changes');
2523: }
2524: }
2525: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2526: $groupsmsg = &mt('No changes in course/community groups');
2527: }
2528: if (!@changed_roles && !(keys(%changed_groups))) {
2529: if (($msg ne '') || ($groupsmsg ne '')) {
2530: $msg .= '<ul>';
2531: if ($rolesmsg) {
2532: $msg .= '<li>'.$rolesmsg.'</li>';
2533: }
2534: if ($groupsmsg) {
2535: $msg .= '<li>'.$groupsmsg.'</li>';
2536: }
2537: $msg .= '</ul>';
2538: } else {
2539: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2540: }
2541: return $msg;
2542: }
2543: }
2544: my $changemsg;
2545: if (@changed_roles > 0) {
2546: if (keys(%newgroup) > 0) {
2547: my $groupmsg;
2548: my (%curr_groups,%groupdescs,$currcrs);
2549: foreach my $item (sort(keys(%newgroup))) {
2550: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2551: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2552: my ($cdom,$cnum) = split(/\//,$1);
2553: my $group = $2;
2554: if ($currcrs ne $cdom.'_'.$cnum) {
2555: if ($currcrs) {
2556: $groupmsg .= '</ul><li>';
2557: }
2558: $groupmsg .= '<li><b>'.
2559: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2560: $currcrs = $cdom.'_'.$cnum;
2561: }
2562: my $groupdesc;
2563: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2564: %{$curr_groups{$cdom.'_'.$cnum}} =
2565: &Apache::longroup::coursegroups($cdom,$cnum);
2566: }
2567: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2568: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2569:
2570: my %groupinfo =
2571: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2572: $groupdescs{$cdom.'_'.$cnum}{$group} =
2573: &unescape($groupinfo{'description'});
2574: }
2575: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2576: if ($groupdesc) {
2577: $groupmsg .= '<li>'.
2578: &mt('[_1] with status: [_2].',
2579: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2580: }
2581: }
2582: }
2583: if ($groupmsg) {
2584: $groupmsg .= '</ul></li>';
2585: }
2586: }
2587: if ($groupmsg) {
2588: $changemsg .= '<li>'.
2589: &mt('Courses with new groups').'</li>'.
2590: '<ul>'.$groupmsg.'</ul></li>';
2591: }
2592: }
2593: if (keys(%newrole) > 0) {
2594: my $newmsg;
2595: foreach my $item (sort(keys(%newrole))) {
2596: my $desc = &role_desc($item,$update,$refresh,$now);
2597: if ($desc) {
2598: $newmsg .= '<li>'.
2599: &mt('[_1] with status: [_2].',
2600: $desc,&mt($newrole{$item})).'</li>';
2601: }
2602: }
2603: if ($newmsg) {
2604: $changemsg .= '<li>'.&mt('New roles').
2605: '<ul>'.$newmsg.'</ul>'.
2606: '</li>';
2607: }
2608: }
2609: if (keys(%customprivchg) > 0) {
2610: my $privmsg;
2611: foreach my $item (sort(keys(%customprivchg))) {
2612: my $desc = &role_desc($item,$update,$refresh,$now);
2613: if ($desc) {
2614: $privmsg .= '<li>'.$desc.'</li>';
2615: }
2616: }
2617: if ($privmsg) {
2618: $changemsg .= '<li>'.
2619: &mt('Custom roles with privilege changes').
2620: '<ul>'.$privmsg.'</ul>'.
2621: '</li>';
2622: }
2623: }
2624: if (keys(%rolechange) > 0) {
2625: my $rolemsg;
2626: foreach my $item (sort(keys(%rolechange))) {
2627: my $desc = &role_desc($item,$update,$refresh,$now);
2628: if ($desc) {
2629: $rolemsg .= '<li>'.
2630: &mt('[_1] status now: [_2].',$desc,
2631: $rolechange{$item}).'</li>';
2632: }
2633: }
2634: if ($rolemsg) {
2635: $changemsg .= '<li>'.
2636: &mt('Existing roles with status changes').'</li>'.
2637: '<ul>'.$rolemsg.'</ul>'.
2638: '</li>';
2639: }
2640: }
2641: if (keys(%deletedroles) > 0) {
2642: my $delmsg;
2643: foreach my $item (sort(keys(%deletedroles))) {
2644: my $desc = &role_desc($item,$update,$refresh,$now);
2645: if ($desc) {
2646: $delmsg .= '<li>'.$desc.'</li>';
2647: }
2648: }
2649: if ($delmsg) {
2650: $changemsg .= '<li>'.
2651: &mt('Existing roles now expired').'</li>'.
2652: '<ul>'.$delmsg.'</ul>'.
2653: '</li>';
2654: }
2655: }
2656: }
2657: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2658: my $groupchgmsg;
2659: foreach my $key (sort(keys(%changed_groups))) {
2660: my $crs = 'gr/'.$key;
2661: $crs =~ s/_/\//;
2662: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2663: if (ref($changed_groups{$key}) eq 'HASH') {
2664: my @showgroups;
2665: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2666: if ($changed_groups{$key}{$group} eq 'active') {
2667: push(@showgroups,$group);
2668: }
2669: }
2670: if (@showgroups > 0) {
2671: $groupchgmsg .= '<li>'.
2672: &mt('Course: [_1], groups: [_2].',$key,
2673: join(', ',@showgroups)).
2674: '</li>';
2675: }
2676: }
2677: }
2678: }
2679: if (keys(%groupchange) > 0) {
2680: $groupchgmsg .= '<li>'.
2681: &mt('Existing course/community groups with status changes').'</li>'.
2682: '<ul>';
2683: foreach my $crs (sort(keys(%groupchange))) {
2684: my $cid = $crs;
2685: $cid=~s{^/}{};
2686: $cid=~s{/}{_};
2687: my $crsdesc = $env{'course.'.$cid.'.description'};
2688: my $cdom = $env{'course.'.$cid.'.domain'};
2689: my $cnum = $env{'course.'.$cid.'.num'};
2690: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2691: my %groupdesc;
2692: if (ref($groupchange{$crs}) eq 'HASH') {
2693: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2694: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2695: unless ($groupdesc{$group}) {
2696: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2697: $groupdesc{$group} = &unescape($groupinfo{'description'});
2698: }
2699: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2700: }
2701: $groupchgmsg .= '</ul></li>';
2702: }
2703: }
2704: $groupchgmsg .= '</ul></li>';
2705: }
2706: if ($groupchgmsg) {
2707: $changemsg .= '<li>'.
2708: &mt('Courses with changes in groups').'</li>'.
2709: '<ul>'.$groupchgmsg.'</ul></li>';
2710: }
2711: }
2712: if ($changemsg) {
2713: $msg .= '<ul>'.$changemsg.'</ul>';
2714: } else {
2715: if (&Apache::loncommon::show_course()) {
2716: $msg = &mt('No new courses or communities');
2717: } else {
2718: $msg = &mt('No role changes');
2719: }
2720: }
2721: return $msg;
2722: }
2723:
2724: sub role_desc {
2725: my ($item,$update,$refresh,$now) = @_;
2726: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2727: $trole,$tremark);
2728: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2729: $now,\$role,\$where,\$trolecode,
2730: \$tstatus,\$tstart,\$tend);
2731: return unless ($role);
2732: if ($role =~ /^cr\//) {
2733: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2734: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2735: }
2736: $trole=Apache::lonnet::plaintext($role);
2737: my ($tdom,$trest,$tsection)=
2738: split(/\//,Apache::lonnet::declutter($where));
2739: if (($role eq 'ca') || ($role eq 'aa')) {
2740: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2741: $home = &Apache::lonnet::hostname($home);
2742: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2743: ': '.$tdom.' '.&mt('Server').': '.$home;
2744: } elsif ($role eq 'au') {
2745: my $home = &Apache::lonnet::homeserver
2746: ($env{'user.name'},$env{'user.domain'});
2747: $home = &Apache::lonnet::hostname($home);
2748: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2749: ': '.$home;
2750: } elsif ($trest) {
2751: my $tcourseid=$tdom.'_'.$trest;
2752: my $crstype = &Apache::loncommon::course_type($tcourseid);
2753: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2754: if ($env{'course.'.$tcourseid.'.description'}) {
2755: $twhere=$env{'course.'.$tcourseid.'.description'};
2756: } else {
2757: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2758: if (%newhash) {
2759: $twhere=$newhash{'description'};
2760: } else {
2761: $twhere=&mt('Currently not available');
2762: }
2763: }
2764: if ($tsection) {
2765: $twhere.= ' '.&mt('Section').': '.$tsection;
2766: }
2767: if ($role ne 'st') {
2768: $twhere.= ' '.&mt('Domain').': '.$tdom;
2769: }
2770: } elsif ($tdom) {
2771: $twhere = &mt('Domain').': '.$tdom;
2772: }
2773: my $output;
2774: if ($trole) {
2775: $output = $trole;
2776: if ($twhere) {
2777: $output .= " -- $twhere";
2778: }
2779: if ($tremark) {
2780: $output .= '<br />'.$tremark;
2781: }
2782: }
2783: return $output;
2784: }
2785:
2786: sub curr_role_status {
2787: my ($start,$end,$refresh,$update) = @_;
2788: if (($start) && ($start<0)) { return 'deleted' };
2789: my $status = 'active';
2790: if (($end) && ($end<=$update)) {
2791: $status = 'previous';
2792: }
2793: if (($start) && ($refresh<$start)) {
2794: $status = 'future';
2795: }
2796: return $status;
2797: }
2798:
2799: sub gather_roleprivs {
2800: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2801: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2802: if (($area ne '') && ($role ne '')) {
2803: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2804: $area,$tstart,$tend);
2805: my $spec=$role.'.'.$area;
2806: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2807: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2808: if ($status eq 'active') {
2809: if ($role =~ /^cr\//) {
2810: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2811: } elsif ($role eq 'gr') {
2812: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2813: $env{'user.domain'},
2814: $env{'user.name'});
2815: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2816: (undef,my $group_privs) = split(/\//,$trole);
2817: $group_privs = &unescape($group_privs);
2818: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2819: } else {
2820: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2821: }
2822: }
2823: }
2824: return;
2825: }
2826:
2827: sub is_active_course {
2828: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2829: return unless(ref($roleshashref) eq 'HASH');
2830: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2831: my $is_active;
2832: foreach my $key (keys(%{$roleshashref})) {
2833: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2834: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2835: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2836: if ($status eq 'active') {
2837: $is_active = 1;
2838: last;
2839: }
2840: }
2841: }
2842: return $is_active;
2843: }
2844:
2845: sub get_roles_functions {
2846: my ($rolescount,$cattype) = @_;
2847: my @links;
2848: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2849: if ($env{'environment.canrequest.author'}) {
2850: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2851: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2852: }
2853: }
2854: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2855: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2856: }
2857: if (&Apache::lonmenu::check_for_rcrs()) {
2858: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2859: }
2860: if ($env{'form.state'} eq 'queued') {
2861: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2862: } else {
2863: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2864: }
2865: if ($env{'user.adv'}) {
2866: if ($env{'form.display'} eq 'showall') {
2867: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2868: } else {
2869: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2870: }
2871: }
2872: unless ($cattype eq 'none') {
2873: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2874: }
2875: my $funcs;
2876: if ($env{'browser.mobile'}) {
2877: my @functions;
2878: foreach my $link (@links) {
2879: push(@functions,[$link->[0],$link->[2]]);
2880: }
2881: my $title = 'Display options';
2882: if ($env{'user.adv'}) {
2883: $title = 'Roles options';
2884: }
2885: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2886: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2887: } else {
2888: $funcs = &Apache::lonhtmlcommon::start_funclist();
2889: foreach my $link (@links) {
2890: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2891: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2892: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2893: $link->[2].'</a>');
2894: }
2895: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2896: $funcs = &Apache::loncommon::head_subbox($funcs);
2897: }
2898: return $funcs;
2899: }
2900:
2901: sub get_queued {
2902: my ($output,%reqcrs);
2903: my ($types,$typenames) = &Apache::loncommon::course_types();
2904: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2905: $env{'user.name'},'^status:');
2906: foreach my $key (keys(%statusinfo)) {
2907: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2908: (undef,my($cdom,$cnum)) = split(/:/,$key);
2909: my $requestkey = $cdom.'_'.$cnum;
2910: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2911: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2912: $env{'user.domain'},$env{'user.name'});
2913: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2914: my $reqtime = $history{'reqtime'};
2915: my $lastupdate = $history{'timestamp'};
2916: my $showtype = $history{'crstype'};
2917: if (defined($typenames->{$history{'crstype'}})) {
2918: $showtype = $typenames->{$history{'crstype'}};
2919: }
2920: my $description;
2921: if (ref($history{'details'}) eq 'HASH') {
2922: $description = $history{details}{'cdescr'};
2923: }
2924: @{$reqcrs{$reqtime}} = ($description,$showtype);
2925: }
2926: }
2927: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2928: if (@sortedtimes > 0) {
2929: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2930: &Apache::loncommon::start_data_table().
2931: &Apache::loncommon::start_data_table_header_row().
2932: '<th>'.&mt('Date requested').'</th>'.
2933: '<th>'.&mt('Course title').'</th>'.
2934: '<th>'.&mt('Course type').'</th>';
2935: &Apache::loncommon::end_data_table_header_row();
2936: foreach my $reqtime (@sortedtimes) {
2937: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2938: $output .= &Apache::loncommon::start_data_table_row().
2939: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2940: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2941: &Apache::loncommon::end_data_table_row();
2942: }
2943: $output .= &Apache::loncommon::end_data_table().
2944: '<br /></p>';
2945: }
2946: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2947: if ($queuedselfenroll) {
2948: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2949: $queuedselfenroll.'<br /></p>';
2950: }
2951: if ($env{'environment.canrequest.author'}) {
2952: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2953: my $requestauthor;
2954: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2955: if (($status eq 'approval') || ($status eq 'approved')) {
2956: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2957: if ($status eq 'approval') {
2958: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2959: &Apache::lonlocal::locallocaltime($timestamp));
2960: } elsif ($status eq 'approved') {
2961: my %roleshash =
2962: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2963: ['active'],['au'],[$env{'user.domain'}]);
2964: if (keys(%roleshash)) {
2965: $output .= '<span class="LC_info">'.
2966: &mt('Your request for an author role has been approved.').'<br />'.
2967: &mt('Use the "Check for changes" link to update your list of roles.').
2968: '</span>';
2969: }
2970: }
2971: $output .= '</p>';
2972: }
2973: }
2974: }
2975: unless ($output) {
2976: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2977: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2978: $output = &mt('No requests for courses, communities or authoring currently queued');
2979: } else {
2980: $output = &mt('No enrollment requests currently queued awaiting approval');
2981: }
2982: }
2983: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2984: $output.'</fieldset></div><br clear="all" />';
2985: }
2986:
2987: 1;
2988: __END__
2989:
2990: =head1 NAME
2991:
2992: Apache::lonroles - User Roles Screen
2993:
2994: =head1 SYNOPSIS
2995:
2996: Invoked by /etc/httpd/conf/srm.conf:
2997:
2998: <Location /adm/roles>
2999: PerlAccessHandler Apache::lonacc
3000: SetHandler perl-script
3001: PerlHandler Apache::lonroles
3002: ErrorDocument 403 /adm/login
3003: ErrorDocument 500 /adm/errorhandler
3004: </Location>
3005:
3006: =head1 OVERVIEW
3007:
3008: =head2 Choosing Roles
3009:
3010: C<lonroles> is a handler that allows a user to switch roles in
3011: mid-session. LON-CAPA attempts to work with "No Role Specified", the
3012: default role that a user has before selecting a role, as widely as
3013: possible, but certain handlers for example need specification which
3014: course they should act on, etc. Both in this scenario, and when the
3015: handler determines via C<lonnet>'s C<&allowed> function that a certain
3016: action is not allowed, C<lonroles> is used as error handler. This
3017: allows the user to select another role which may have permission to do
3018: what they were trying to do.
3019:
3020: =begin latex
3021:
3022: \begin{figure}
3023: \begin{center}
3024: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
3025: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
3026: \end{center}
3027: \end{figure}
3028:
3029: =end latex
3030:
3031: =head2 Role Initialization
3032:
3033: 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.
3034:
3035: =head1 INTRODUCTION
3036:
3037: This module enables a user to select what role he wishes to
3038: operate under (instructor, student, teaching assistant, course
3039: coordinator, etc). These roles are pre-established by the actions
3040: of upper-level users.
3041:
3042: This is part of the LearningOnline Network with CAPA project
3043: described at http://www.lon-capa.org.
3044:
3045: =head1 HANDLER SUBROUTINE
3046:
3047: This routine is called by Apache and mod_perl.
3048:
3049: =over 4
3050:
3051: =item *
3052:
3053: Roles Initialization (yes/no)
3054:
3055: =item *
3056:
3057: Get Error Message from Environment
3058:
3059: =item *
3060:
3061: Who is this?
3062:
3063: =item *
3064:
3065: Generate Page Output
3066:
3067: =item *
3068:
3069: Choice or no choice
3070:
3071: =item *
3072:
3073: Table
3074:
3075: =item *
3076:
3077: Privileges
3078:
3079: =back
3080:
3081: =cut
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