1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.269.2.18 2014/05/04 22:24:44 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);
132: use Apache::File();
133: use Apache::lonmenu;
134: use Apache::loncommon;
135: use Apache::lonhtmlcommon;
136: use Apache::lonannounce;
137: use Apache::lonlocal;
138: use Apache::lonpageflip();
139: use Apache::lonnavdisplay();
140: use Apache::loncoursequeueadmin;
141: use Apache::longroup;
142: use Apache::lonrss;
143: use GDBM_File;
144: use LONCAPA qw(:DEFAULT :match);
145: use HTML::Entities;
146:
147:
148: sub redirect_user {
149: my ($r,$title,$url,$msg) = @_;
150: $msg = $title if (! defined($msg));
151: &Apache::loncommon::content_type($r,'text/html');
152: &Apache::loncommon::no_cache($r);
153: $r->send_http_header;
154: my $swinfo=&Apache::lonmenu::rawconfig();
155:
156: # Breadcrumbs
157: my $brcrum = [{'href' => $url,
158: 'text' => 'Switching Role'},];
159: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
160: {'redirect' => [1,$url],
161: 'bread_crumbs' => $brcrum,});
162: my $end_page = &Apache::loncommon::end_page();
163:
164: # Note to style police:
165: # This must only replace the spaces, nothing else, or it bombs elsewhere.
166: $url=~s/ /\%20/g;
167: $r->print(<<ENDREDIR);
168: $start_page
169: <script type="text/javascript">
170: // <![CDATA[
171: $swinfo
172: // ]]>
173: </script>
174: <p>$msg</p>
175: $end_page
176: ENDREDIR
177: return;
178: }
179:
180: sub error_page {
181: my ($r,$error,$dest)=@_;
182: &Apache::loncommon::content_type($r,'text/html');
183: &Apache::loncommon::no_cache($r);
184: $r->send_http_header;
185: return OK if $r->header_only;
186: # Breadcrumbs
187: my $brcrum = [{'href' => $dest,
188: 'text' => 'Problems during Course Initialization'},];
189: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
190: undef,
191: {'bread_crumbs' => $brcrum,})
192: );
193: $r->print(
194: '<script type="text/javascript">'.
195: '// <![CDATA['.
196: &Apache::lonmenu::rawconfig().
197: '// ]]>'.
198: '</script>'.
199: '<p class="LC_error">'.&mt('The following problems occurred:').
200: '<br />'.
201: $error.
202: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
203: );
204: $r->print(&Apache::loncommon::end_page());
205: }
206:
207: sub handler {
208:
209: my $r = shift;
210:
211: my $now=time;
212: my $then=$env{'user.login.time'};
213: my $refresh=$env{'user.refresh.time'};
214: my $update=$env{'user.update.time'};
215: if (!$refresh) {
216: $refresh = $then;
217: }
218: if (!$update) {
219: $update = $then;
220: }
221:
222: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
223:
224: # -------------------------------------------------- Check if setting hot list
225: my $hotlist;
226: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
227: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
228: }
229:
230: # -------------------------------------------------------- Check for new roles
231: my $updateresult;
232: if ($env{'form.state'} eq 'doupdate') {
233: my $show_course=&Apache::loncommon::show_course();
234: my $checkingtxt;
235: if ($show_course) {
236: $checkingtxt = &mt('Checking for new courses ...');
237: } else {
238: $checkingtxt = &mt('Checking for new roles ...');
239: }
240: $updateresult = $checkingtxt;
241: $updateresult .= &update_session_roles();
242: &Apache::lonnet::appenv({'user.update.time' => $now});
243: $update = $now;
244: &Apache::loncoursequeueadmin::reqauthor_check();
245: }
246:
247: # -------------------------------------------------- Check for author requests
248: my $reqauthor;
249: if ($env{'form.state'} eq 'requestauthor') {
250: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
251: }
252:
253: my $envkey;
254: my %dcroles = ();
255: my $numdc = &check_fordc(\%dcroles,$update,$then);
256: my $loncaparev = $Apache::lonnet::perlvar{'lonVersion'};
257:
258: # ================================================================== Roles Init
259: if ($env{'form.selectrole'}) {
260:
261: my $locknum=&Apache::lonnet::get_locks();
262: if ($locknum) { return 409; }
263:
264: if ($env{'form.newrole'}) {
265: $env{'form.'.$env{'form.newrole'}}=1;
266: }
267: if ($env{'request.course.id'}) {
268: # Check if user is CC trying to select a course role
269: if ($env{'form.switchrole'}) {
270: my $switch_is_active;
271: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
272: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
273: if (!$end || $end > $now) {
274: if (!$start || $start < $update) {
275: $switch_is_active = 1;
276: }
277: }
278: }
279: unless ($switch_is_active) {
280: &adhoc_course_role($refresh,$update,$then);
281: }
282: }
283: my %temp=('logout_'.$env{'request.course.id'} => time);
284: &Apache::lonnet::put('email_status',\%temp);
285: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
286: }
287: &Apache::lonnet::appenv({"request.course.id" => '',
288: "request.course.fn" => '',
289: "request.course.uri" => '',
290: "request.course.sec" => '',
291: "request.course.tied" => '',
292: "request.role" => 'cm',
293: "request.role.adv" => $env{'user.adv'},
294: "request.role.domain" => $env{'user.domain'}});
295: # Check if user is a DC trying to enter a course or author space and needs privs to be created
296: if ($numdc > 0) {
297: foreach my $envkey (keys(%env)) {
298: # Is this an ad-hoc Coordinator role?
299: if (my ($ccrole,$domain,$coursenum) =
300: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
301: if ($dcroles{$domain}) {
302: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
303: $update,$refresh,$now,$ccrole)) {
304: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
305: }
306: }
307: last;
308: }
309: # Is this an ad-hoc CA-role?
310: if (my ($domain,$user) =
311: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
312: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
313: delete($env{$envkey});
314: $env{'form.au./'.$domain.'/'} = 1;
315: my ($server_status,$home) = &check_author_homeserver($user,$domain);
316: if ($server_status eq 'switchserver') {
317: my $trolecode = 'au./'.$domain.'/';
318: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
319: $r->internal_redirect($switchserver);
320: return OK;
321: }
322: last;
323: }
324: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
325: if (((($castart) && ($castart < $now)) || !$castart) &&
326: ((!$caend) || (($caend) && ($caend > $now)))) {
327: my ($server_status,$home) = &check_author_homeserver($user,$domain);
328: if ($server_status eq 'switchserver') {
329: my $trolecode = 'ca./'.$domain.'/'.$user;
330: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
331: $r->internal_redirect($switchserver);
332: return OK;
333: }
334: last;
335: }
336: }
337: # Check if author blocked ca-access
338: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
339: if ($blocked{'domcoord.author'} eq 'blocked') {
340: delete($env{$envkey});
341: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
342: last;
343: }
344: if ($dcroles{$domain}) {
345: my ($server_status,$home) = &check_author_homeserver($user,$domain);
346: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
347: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
348: $refresh,$now,'ca');
349: if ($server_status eq 'switchserver') {
350: my $trolecode = 'ca./'.$domain.'/'.$user;
351: my $switchserver = '/adm/switchserver?'
352: .'otherserver='.$home.'&role='.$trolecode;
353: $r->internal_redirect($switchserver);
354: return OK;
355: }
356: } else {
357: delete($env{$envkey});
358: }
359: } else {
360: delete($env{$envkey});
361: }
362: last;
363: }
364: }
365: }
366:
367: foreach $envkey (keys(%env)) {
368: next if ($envkey!~/^user\.role\./);
369: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
370: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
371: \$trolecode,\$tstatus,\$tstart,\$tend);
372: if ($env{'form.'.$trolecode}) {
373: if ($tstatus eq 'is') {
374: $where=~s/^\///;
375: my ($cdom,$cnum,$csec)=split(/\//,$where);
376: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
377: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
378: my @ids = &Apache::lonnet::current_machine_ids();
379: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
380: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
381: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
382: my ($switchserver,$switchwarning) =
383: &check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,$curr_reqd_hash{'internal.releaserequired'});
384: if ($switchwarning ne '' || $switchserver ne '') {
385: &Apache::loncommon::content_type($r,'text/html');
386: &Apache::loncommon::no_cache($r);
387: $r->send_http_header;
388: my $end_page=&Apache::loncommon::end_page();
389: $r->print(&Apache::loncommon::start_page('Selected course unavailable on this server').
390: '<p class="LC_warning">');
391: if ($switchwarning) {
392: $r->print($switchwarning.'<br /><a href="/adm/roles">');
393: if (&Apache::loncommon::show_course()) {
394: $r->print(&mt('Display courses'));
395: } else {
396: $r->print(&mt('Display roles'));
397: }
398: $r->print('</a>');
399: } elsif ($switchserver) {
400: $r->print(&mt('This course requires a newer version of LON-CAPA than is installed on this server.').
401: '<br />'.
402: '<a href="/adm/switchserver?'.$switchserver.'">'.
403: &mt('Switch Server').
404: '</a>');
405: }
406: $r->print('</p>'.&Apache::loncommon::end_page());
407: return OK;
408: }
409: }
410: }
411: }
412: # check for course groups
413: my %coursegroups = &Apache::lonnet::get_active_groups(
414: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
415: my $cgrps = join(':',keys(%coursegroups));
416:
417: # store role if recent_role list being kept
418: if ($env{'environment.recentroles'}) {
419: my %frozen_roles =
420: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
421: &Apache::lonhtmlcommon::store_recent('roles',
422: $trolecode,' ',$frozen_roles{$trolecode});
423: }
424:
425:
426: # check for keyed access
427: if (($role eq 'st') &&
428: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
429: # who is key authority?
430: my $authdom=$cdom;
431: my $authnum=$cnum;
432: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
433: ($authnum,$authdom)=
434: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
435: }
436: # check with key authority
437: unless (&Apache::lonnet::validate_access_key(
438: $env{'environment.key.'.$cdom.'_'.$cnum},
439: $authdom,$authnum)) {
440: # there is no valid key
441: if ($env{'form.newkey'}) {
442: # student attempts to register a new key
443: &Apache::loncommon::content_type($r,'text/html');
444: &Apache::loncommon::no_cache($r);
445: $r->send_http_header;
446: my $swinfo=&Apache::lonmenu::rawconfig();
447: my $start_page=&Apache::loncommon::start_page
448: ('Verifying Access Key to Unlock this Course');
449: my $end_page=&Apache::loncommon::end_page();
450: my $buttontext=&mt('Enter Course');
451: my $message=&mt('Successfully registered key');
452: my $assignresult=
453: &Apache::lonnet::assign_access_key(
454: $env{'form.newkey'},
455: $authdom,$authnum,
456: $cdom,$cnum,
457: $env{'user.domain'},
458: $env{'user.name'},
459: &mt('Assigned from [_1] at [_2] for [_3]'
460: ,$ENV{'REMOTE_ADDR'}
461: ,&Apache::lonlocal::locallocaltime()
462: ,$trolecode)
463: );
464: unless ($assignresult eq 'ok') {
465: $assignresult=~s/^error\:\s*//;
466: $message=&mt($assignresult).
467: '<br /><a href="/adm/logout">'.
468: &mt('Logout').'</a>';
469: $buttontext=&mt('Re-Enter Key');
470: }
471: $r->print(<<ENDENTEREDKEY);
472: $start_page
473: <script type="text/javascript">
474: // <![CDATA[
475: $swinfo
476: // ]]>
477: </script>
478: <form action="" method="post">
479: <input type="hidden" name="selectrole" value="1" />
480: <input type="hidden" name="$trolecode" value="1" />
481: <span class="LC_fontsize_large">$message</span><br />
482: <input type="submit" value="$buttontext" />
483: </form>
484: $end_page
485: ENDENTEREDKEY
486: return OK;
487: } else {
488: # print form to enter a new key
489: &Apache::loncommon::content_type($r,'text/html');
490: &Apache::loncommon::no_cache($r);
491: $r->send_http_header;
492: my $swinfo=&Apache::lonmenu::rawconfig();
493: my $start_page=&Apache::loncommon::start_page
494: ('Enter Access Key to Unlock this Course');
495: my $end_page=&Apache::loncommon::end_page();
496: $r->print(<<ENDENTERKEY);
497: $start_page
498: <script type="text/javascript">
499: // <![CDATA[
500: $swinfo
501: // ]]>
502: </script>
503: <form action="" method="post">
504: <input type="hidden" name="selectrole" value="1" />
505: <input type="hidden" name="$trolecode" value="1" />
506: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
507: <input type="submit" value="Enter key" />
508: </form>
509: $end_page
510: ENDENTERKEY
511: return OK;
512: }
513: }
514: }
515: &Apache::lonnet::log($env{'user.domain'},
516: $env{'user.name'},
517: $env{'user.home'},
518: "Role ".$trolecode);
519:
520: &Apache::lonnet::appenv(
521: {'request.role' => $trolecode,
522: 'request.role.domain' => $cdom,
523: 'request.course.sec' => $csec,
524: 'request.course.groups' => $cgrps});
525: my $tadv=0;
526:
527: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
528: my $msg;
529: my ($furl,$ferr)=
530: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
531: unless ($ferr) {
532: unless (($env{'form.switchrole'}) ||
533: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
534: &Apache::lonnet::put('nohist_crslastlogin',
535: {$env{'user.name'}.':'.$env{'user.domain'}.
536: ':'.$csec.':'.$role => $now},$cdom,$cnum);
537: }
538: my ($feeds,$syllabus_time);
539: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
540: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
541: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
542: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
543: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
544: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
545: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
546: $syllabus_time = $syllabus{'uploaded.lastmodified'};
547: if ($syllabus_time) {
548: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
549: }
550: }
551: }
552: }
553: if (($env{'form.orgurl'}) &&
554: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
555: ($env{'form.orgurl'} ne '/adm/roles')) {
556: my $dest=$env{'form.orgurl'};
557: if ($env{'form.symb'}) {
558: if ($dest =~ /\?/) {
559: $dest .= '&';
560: } else {
561: $dest .= '?';
562: }
563: $dest .= 'symb='.$env{'form.symb'};
564: }
565: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
566: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
567: if (($ferr) && ($tadv)) {
568: &error_page($r,$ferr,$dest);
569: } else {
570: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
571: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
572: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
573: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
574: $cdom.'_'.$cnum);
575: }
576: }
577: $r->internal_redirect($dest);
578: }
579: return OK;
580: } else {
581: if (!$env{'request.course.id'}) {
582: &Apache::lonnet::appenv(
583: {"request.course.id" => $cdom.'_'.$cnum});
584: $furl='/adm/roles?tryagain=1';
585: $msg='<p><span class="LC_error">'
586: .&mt('Could not initialize [_1] at this time.',
587: $env{'course.'.$cdom.'_'.$cnum.'.description'})
588: .'</span></p>'
589: .'<p>'.&mt('Please try again.').'</p>'
590: .'<p>'.$ferr.'</p>';
591: }
592: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
593: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
594:
595: if (($ferr) && ($tadv)) {
596: &error_page($r,$ferr,$furl);
597: } else {
598: # Check to see if the user is a CC entering a course
599: # for the first time
600: if ((($role eq 'cc') || ($role eq 'co'))
601: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
602: $furl = "/adm/helper/course.initialization.helper";
603: # Send the user to the course they selected
604: } elsif ($env{'request.course.id'}) {
605: my ($dest,$destsymb,$checkenc);
606: $dest = $env{'form.destinationurl'};
607: $destsymb = $env{'form.destsymb'};
608: if ($dest ne '') {
609: if ($env{'form.switchrole'}) {
610: if ($destsymb ne '') {
611: if ($destsymb !~ m{^/enc/}) {
612: unless ($env{'request.role.adv'}) {
613: $checkenc = 1;
614: }
615: }
616: }
617: if ($dest =~ m{^/enc/}) {
618: if ($env{'request.role.adv'}) {
619: $dest = &Apache::lonenc::unencrypted($dest);
620: if ($destsymb eq '') {
621: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
622: $destsymb = &unescape($destsymb);
623: }
624: }
625: } else {
626: if ($destsymb eq '') {
627: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
628: $destsymb = &unescape($destsymb);
629: }
630: unless ($env{'request.role.adv'}) {
631: $checkenc = 1;
632: }
633: }
634: if (($checkenc) && ($destsymb ne '')) {
635: my ($encstate,$unencsymb,$res);
636: $unencsymb = &Apache::lonnet::symbclean($destsymb);
637: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
638: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
639: if ($encstate) {
640: if (($dest ne '') && ($dest !~ m{^/enc/})) {
641: $dest=&Apache::lonenc::encrypted($dest);
642: }
643: }
644: }
645: }
646: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
647: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
648: my $esc_symb = &escape($destsymb);
649: $dest .= '?symb='.$esc_symb;
650: }
651: }
652: &redirect_user($r, &mt('Entering [_1]',
653: $env{'course.'.$env{'request.course.id'}.'.description'}),
654: $dest, $msg);
655: return OK;
656: }
657: if (&Apache::lonnet::allowed('whn',
658: $env{'request.course.id'})
659: || &Apache::lonnet::allowed('whn',
660: $env{'request.course.id'}.'/'
661: .$env{'request.course.sec'})
662: ) {
663: my $startpage = &courseloadpage($env{'request.course.id'});
664: unless ($startpage eq 'firstres') {
665: $msg = &mt('Entering [_1] ...',
666: $env{'course.'.$env{'request.course.id'}.'.description'});
667: &redirect_user($r, &mt('New in course'),
668: '/adm/whatsnew?refpage=start', $msg);
669: return OK;
670: }
671: }
672: }
673: # Are we allowed to look at the first resource?
674: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
675: # If it's an external resource,
676: # strip off the symb argument and possible query
677: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
678: # Unencode $symb
679: $symb = &unescape($symb);
680: # Then check for permission
681: if (!&Apache::lonnet::allowed('bre',$exturl,$symb)) {
682: $furl = &Apache::lonpageflip::first_accessible_resource();
683: }
684: # For other resources just check for permission
685: } elsif (!&Apache::lonnet::allowed('bre',$furl)) {
686: $furl = &Apache::lonpageflip::first_accessible_resource();
687: }
688:
689: $msg = &mt('Entering [_1] ...',
690: $env{'course.'.$cdom.'_'.$cnum.'.description'});
691: &redirect_user($r, &mt('Entering [_1]',
692: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
693: $furl, $msg);
694: }
695: return OK;
696: }
697: }
698: #
699: # Send the user to the construction space they selected
700: if ($role =~ /^(au|ca|aa)$/) {
701: my $redirect_url = '/priv/';
702: if ($role eq 'au') {
703: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
704: } else {
705: $redirect_url .= $where;
706: }
707: $redirect_url .= '/';
708: &redirect_user($r,&mt('Entering Authoring Space'),
709: $redirect_url);
710: return OK;
711: }
712: if ($role eq 'dc') {
713: my $redirect_url = '/adm/menu/';
714: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
715: $redirect_url);
716: return OK;
717: }
718: if ($role eq 'sc') {
719: my $redirect_url = '/adm/grades?command=scantronupload';
720: &redirect_user($r,&mt('Loading Data Upload Page'),
721: $redirect_url);
722: return OK;
723: }
724: }
725: }
726: }
727: }
728:
729:
730: # =============================================================== No Roles Init
731:
732: &Apache::loncommon::content_type($r,'text/html');
733: &Apache::loncommon::no_cache($r);
734: $r->send_http_header;
735: return OK if $r->header_only;
736:
737: my $crumbtext = 'User Roles';
738: my $pagetitle = 'My Roles';
739: my $recent = &mt('Recent Roles');
740: my $standby = &mt('Role selected. Please stand by.');
741: my $show_course=&Apache::loncommon::show_course();
742: if ($show_course) {
743: $crumbtext = 'Courses';
744: $pagetitle = 'My Courses';
745: $recent = &mt('Recent Courses');
746: $standby = &mt('Course selected. Please stand by.');
747: }
748: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
749:
750: my %roles_in_env;
751: my $showcount = &roles_from_env(\%roles_in_env,$update);
752:
753: my $swinfo=&Apache::lonmenu::rawconfig();
754: my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum});
755: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
756: my $cattype = 'std';
757: if ($domdefs{'catauth'}) {
758: $cattype = $domdefs{'catauth'};
759: }
760: my $funcs = &get_roles_functions($showcount,$cattype);
761: $standby=~s/\n/\\n/g;
762: 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 />';
763:
764: $r->print(<<ENDHEADER);
765: $start_page
766: $funcs
767: <noscript>
768: $noscript
769: </noscript>
770: <script type="text/javascript">
771: // <![CDATA[
772: $swinfo
773: window.focus();
774:
775: active=true;
776:
777: function enterrole (thisform,rolecode,buttonname) {
778: if (active) {
779: active=false;
780: document.title='$standby';
781: window.status='$standby';
782: thisform.newrole.value=rolecode;
783: thisform.submit();
784: } else {
785: alert('$standby');
786: }
787: }
788:
789: function rolesView (caller) {
790: if ((caller == 'showall') || (caller == 'noshowall')) {
791: document.rolechoice.display.value = caller;
792: } else {
793: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
794: (caller == 'queued')) {
795: document.rolechoice.state.value = caller;
796: }
797: }
798: document.rolechoice.selectrole.value='';
799: document.rolechoice.submit();
800: }
801:
802: // ]]>
803: </script>
804: ENDHEADER
805:
806: # ------------------------------------------ Get Error Message from Environment
807:
808: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
809: if ($env{'user.error.msg'}) {
810: $r->log_reason(
811: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
812: }
813:
814: # ------------------------------------------------- Can this user re-init, etc?
815:
816: my $advanced=$env{'user.adv'};
817: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
818: my $tryagain=$env{'form.tryagain'};
819: my $reinit=$env{'user.reinit'};
820: delete $env{'user.reinit'};
821:
822: # -------------------------------------------------------- Generate Page Output
823: # --------------------------------------------------------------- Error Header?
824: if ($error) {
825: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
826: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
827: if ($priv ne '') {
828: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
829: }
830: if ($fn ne '') {
831: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
832: }
833: if ($msg ne '') {
834: $r->print(&mt('Action : ').$msg."\n");
835: }
836: $r->print("</pre><hr />");
837: my $url=$fn;
838: my $last;
839: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
840: &GDBM_READER(),0640)) {
841: $last=$hash{'last_known'};
842: untie(%hash);
843: }
844: if ($last) { $fn.='?symb='.&escape($last); }
845:
846: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
847: &Apache::lonenc::check_encrypt($fn));
848: } else {
849: if ($env{'user.error.msg'}) {
850: if ($reinit) {
851: $r->print(
852: '<h3><span class="LC_error">'.
853: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
854: } else {
855: $r->print(
856: '<h3><span class="LC_error">'.
857: &mt('You need to choose another user role or enter a specific course or community for this function.').
858: '</span></h3>');
859: }
860: }
861: }
862: if ($nochoose) {
863: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
864: &mt('This action is currently not authorized.').'</span>'.
865: &Apache::loncommon::end_page());
866: return OK;
867: } else {
868: if ($updateresult || $reqauthor || $hotlist) {
869: my $showresult = '<div>';
870: if ($updateresult) {
871: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
872: }
873: if ($reqauthor) {
874: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
875: }
876: if ($hotlist) {
877: $showresult .= $hotlist;
878: }
879: $showresult .= '</div>';
880: $r->print($showresult);
881: } elsif ($env{'form.state'} eq 'queued') {
882: $r->print(&get_queued());
883: }
884: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
885: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
886: }
887: my $display = ($env{'form.display'} =~ /^(showall)$/);
888: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
889: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
890: $r->print('<input type="hidden" name="selectrole" value="1" />');
891: $r->print('<input type="hidden" name="newrole" value="" />');
892: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
893: $r->print('<input type="hidden" name="state" value="" />');
894: }
895: $r->rflush();
896:
897: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
898: my ($countactive,$countfuture,$inrole,$possiblerole) =
899: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
900: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
901: $refresh = $now;
902: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
903: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'})) {
904: if ($countactive > 0) {
905: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
906: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
907: $r->print(
908: '<p>'
909: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
910: .' to view all [_5] LON-CAPA courses and communities.'
911: ,'<b>'
912: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
913: ,'</a>'
914: ,'</b>'
915: ,'"'.$domdesc.'"')
916: .'<br />'
917: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
918: .' you may be able to enroll if self-enrollment is permitted.'
919: ,'<b>','</b>')
920: .'</p>'
921: );
922: }
923: }
924:
925: # No active roles
926: if ($countactive==0) {
927: if ($inrole) {
928: $r->print('<h2>'.&mt('Currently no additional roles, courses or communities').'</h2>');
929: } else {
930: $r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');
931: }
932: &requestcourse_advice($r,$cattype);
933: $r->print('</form>');
934: if ($countfuture) {
935: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
936: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
937: $nochoose);
938: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
939: \%roletext);
940: my $tremark='';
941: my $tbg;
942: if ($env{'request.role'} eq 'cm') {
943: $tbg="LC_roles_selected";
944: $tremark=&mt('Currently selected.').' ';
945: } else {
946: $tbg="LC_roles_is";
947: }
948: $r->print(&Apache::loncommon::start_data_table_row()
949: .'<td class="'.$tbg.'"> </td>'
950: .'<td colspan="3">'
951: .&mt('No role specified')
952: .'</td>'
953: .'<td>'.$tremark.' </td>'
954: .&Apache::loncommon::end_data_table_row()
955: );
956:
957: $r->print(&Apache::loncommon::end_data_table());
958: }
959: $r->print(&Apache::loncommon::end_page());
960: return OK;
961: }
962: # ----------------------------------------------------------------------- Table
963:
964: if ($numdc > 0) {
965: $r->print(&coursepick_jscript());
966: $r->print(&Apache::loncommon::coursebrowser_javascript().
967: &Apache::loncommon::authorbrowser_javascript());
968: }
969:
970: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
971: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
972: }
973: if ($env{'form.destinationurl'}) {
974: $r->print('<input type="hidden" name="destinationurl" value="'.
975: $env{'form.destinationurl'}.'" />');
976: if ($env{'form.destsymb'} ne '') {
977: $r->print('<input type="hidden" name="destsymb" value="'.
978: $env{'form.destsymb'}.'" />');
979: }
980: }
981:
982: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
983: if ($env{'environment.recentroles'}) {
984: my %recent_roles =
985: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
986: my $output='';
987: foreach my $role (sort(keys(%recent_roles))) {
988: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
989: $output.= &Apache::loncommon::start_data_table_row().
990: $roletext{'user.role.'.$role}->[0].
991: &Apache::loncommon::end_data_table_row();
992: if ($roletext{'user.role.'.$role}->[1] ne '') {
993: $output .= &Apache::loncommon::continue_data_table_row().
994: $roletext{'user.role.'.$role}->[1].
995: &Apache::loncommon::end_data_table_row();
996: }
997: if ($role =~ m{dc\./($match_domain)/}
998: && $dcroles{$1}) {
999: $output .= &adhoc_roles_row($1,'recent');
1000: }
1001: } elsif ($numdc > 0) {
1002: unless ($role =~/^error\:/) {
1003: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1004: if ($roletext) {
1005: $output.= &Apache::loncommon::start_data_table_row().
1006: $roletext.
1007: &Apache::loncommon::end_data_table_row();
1008: if ($role_text_end) {
1009: $output .= &Apache::loncommon::continue_data_table_row().
1010: $role_text_end.
1011: &Apache::loncommon::end_data_table_row();
1012: }
1013: }
1014: }
1015: }
1016: }
1017: if ($output) {
1018: $r->print(&Apache::loncommon::start_data_table_empty_row()
1019: .'<td align="center" colspan="5">'
1020: .$recent
1021: .'</td>'
1022: .&Apache::loncommon::end_data_table_empty_row()
1023: );
1024: $r->print($output);
1025: $doheaders ++;
1026: }
1027: }
1028: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1029: if ($countactive > 1) {
1030: my $tremark='';
1031: my $tbg;
1032: if ($env{'request.role'} eq 'cm') {
1033: $tbg="LC_roles_selected";
1034: $tremark=&mt('Currently selected.').' ';
1035: } else {
1036: $tbg="LC_roles_is";
1037: }
1038: $r->print(&Apache::loncommon::start_data_table_row());
1039: unless ($nochoose) {
1040: if ($env{'request.role'} ne 'cm') {
1041: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1042: &mt('Select').'" name="cm" /></td>');
1043: } else {
1044: $r->print('<td class="'.$tbg.'"> </td>');
1045: }
1046: }
1047: $r->print('<td colspan="3">'
1048: .&mt('No role specified')
1049: .'</td>'
1050: .'<td>'.$tremark.' </td>'
1051: .&Apache::loncommon::end_data_table_row()
1052: );
1053: }
1054: $r->print(&Apache::loncommon::end_data_table());
1055: unless ($nochoose) {
1056: $r->print("</form>\n");
1057: }
1058: # ------------------------------------------------------------ Privileges Info
1059: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1060: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1061: $r->print(&privileges_info());
1062: }
1063: my $announcements = &Apache::lonnet::getannounce();
1064: $r->print(
1065: '<br />'.
1066: '<h2>'.&mt('Announcements').'</h2>'.
1067: $announcements
1068: ) unless (!$announcements);
1069: if ($advanced) {
1070: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1071: $r->print('<p><small><i>'
1072: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1073: .'</i><br />'
1074: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1075: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1076: .&mt('Course/Community Catalog')
1077: .'</a></small></p>');
1078: }
1079: $r->print(&Apache::loncommon::end_page());
1080: return OK;
1081: }
1082:
1083: sub roles_from_env {
1084: my ($roleshash,$update) = @_;
1085: my $count = 0;
1086: if (ref($roleshash) eq 'HASH') {
1087: foreach my $envkey (keys(%env)) {
1088: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1089: next if ($1 eq 'gr');
1090: $roleshash->{$envkey} = $env{$envkey};
1091: my ($start,$end) = split(/\./,$env{$envkey});
1092: unless ($end && $end<$update) {
1093: $count ++;
1094: }
1095: }
1096: }
1097: }
1098: return $count;
1099: }
1100:
1101: sub gather_roles {
1102: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1103: $timezones,$loncaparev) = @_;
1104: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1105: my $advanced = $env{'user.adv'};
1106: my $tryagain = $env{'form.tryagain'};
1107: my @ids = &Apache::lonnet::current_machine_ids();
1108: if (ref($roles_in_env) eq 'HASH') {
1109: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1110: my $button = 1;
1111: my $switchserver='';
1112: my $switchwarning;
1113: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1114: $tend,$tremark,$tstatus,$tpstart,$tpend);
1115: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1116: \$trolecode,\$tstatus,\$tstart,\$tend);
1117: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1118: $tremark='';
1119: $tpstart=' ';
1120: $tpend=' ';
1121: if ($env{'request.role'} eq $trolecode) {
1122: $tstatus='selected';
1123: }
1124: my $tbg;
1125: if (($tstatus eq 'is')
1126: || ($tstatus eq 'selected')
1127: || ($tstatus eq 'future')
1128: || ($env{'form.display'} eq 'showall')) {
1129: my $timezone = &role_timezone($where,$timezones);
1130: if ($tstart) {
1131: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1132: }
1133: if ($tend) {
1134: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1135: }
1136: if ($tstatus eq 'is') {
1137: $tbg='LC_roles_is';
1138: $possiblerole=$trolecode;
1139: $countactive++;
1140: } elsif ($tstatus eq 'future') {
1141: $tbg='LC_roles_future';
1142: $button=0;
1143: $futureroles->{$trolecode} = $tstart.':'.$tend;
1144: $countfuture ++;
1145: } elsif ($tstatus eq 'expired') {
1146: $tbg='LC_roles_expired';
1147: $button=0;
1148: } elsif ($tstatus eq 'will_not') {
1149: $tbg='LC_roles_will_not';
1150: $tremark.=&mt('Expired after logout.').' ';
1151: } elsif ($tstatus eq 'selected') {
1152: $tbg='LC_roles_selected';
1153: $inrole=1;
1154: $countactive++;
1155: $tremark.=&mt('Currently selected.').' ';
1156: }
1157: my $trole;
1158: if ($role =~ /^cr\//) {
1159: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1160: if ($tremark) { $tremark.='<br />'; }
1161: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1162: }
1163: $trole=Apache::lonnet::plaintext($role);
1164: my $ttype;
1165: my $twhere;
1166: my ($tdom,$trest,$tsection)=
1167: split(/\//,Apache::lonnet::declutter($where));
1168: # First, Co-Authorship roles
1169: if (($role eq 'ca') || ($role eq 'aa')) {
1170: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1171: my $allowed=0;
1172: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1173: if (!$allowed) {
1174: $button=0;
1175: $switchserver='otherserver='.$home.'&role='.$trolecode;
1176: }
1177: #next if ($home eq 'no_host');
1178: $home = &Apache::lonnet::hostname($home);
1179: $ttype='Authoring Space';
1180: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1181: ': '.$tdom.'<br />'.
1182: ' '.&mt('Server').': '.$home;
1183: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1184: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1185: $sortkey=$role."$trest:$tdom";
1186: } elsif ($role eq 'au') {
1187: # Authors
1188: my $home = &Apache::lonnet::homeserver
1189: ($env{'user.name'},$env{'user.domain'});
1190: my $allowed=0;
1191: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1192: if (!$allowed) {
1193: $button=0;
1194: $switchserver='otherserver='.$home.'&role='.$trolecode;
1195: }
1196: #next if ($home eq 'no_host');
1197: $home = &Apache::lonnet::hostname($home);
1198: $ttype='Authoring Space';
1199: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1200: ': '.$home;
1201: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1202: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1203: $sortkey=$role;
1204: } elsif ($trest) {
1205: my $tcourseid=$tdom.'_'.$trest;
1206: $ttype = &Apache::loncommon::course_type($tcourseid);
1207: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1208: if ($env{'course.'.$tcourseid.'.description'}) {
1209: my $home=$env{'course.'.$tcourseid.'.home'};
1210: $twhere=$env{'course.'.$tcourseid.'.description'};
1211: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1212: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1213: unless ($twhere eq &mt('Currently not available')) {
1214: $twhere.=' <span class="LC_fontsize_small">'.
1215: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1216: '</span>';
1217: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1218: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1219: if ($required ne '') {
1220: ($switchserver,$switchwarning) =
1221: &check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1222: if ($switchserver || $switchwarning) {
1223: $button = 0;
1224: }
1225: }
1226: }
1227: }
1228: } else {
1229: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1230: if (%newhash) {
1231: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1232: "\0".$envkey;
1233: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1234: ' <span class="LC_fontsize_small">'.
1235: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1236: '</span>';
1237: $ttype = $newhash{'type'};
1238: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1239: my $home = $newhash{'home'};
1240: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1241: my $required = $newhash{'internal.releaserequired'};
1242: if ($required ne '') {
1243: ($switchserver,$switchwarning) =
1244: &check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1245: if ($switchserver || $switchwarning) {
1246: $button = 0;
1247: }
1248: }
1249: }
1250: } else {
1251: $twhere=&mt('Currently not available');
1252: $env{'course.'.$tcourseid.'.description'}=$twhere;
1253: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1254: $ttype = 'Unavailable';
1255: }
1256: }
1257: if ($tsection) {
1258: $twhere.='<br />'.&mt('Section').': '.$tsection;
1259: }
1260: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1261: } elsif ($tdom) {
1262: $ttype='Domain';
1263: $twhere=$tdom;
1264: $sortkey=$role.$twhere;
1265: } else {
1266: $ttype='System';
1267: $twhere=&mt('system wide');
1268: $sortkey=$role.$twhere;
1269: }
1270: ($role_text,$role_text_end) =
1271: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1272: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1273: $tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning);
1274: $roletext->{$envkey}=[$role_text,$role_text_end];
1275: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1276: $sortrole->{$sortkey}=$envkey;
1277: $roleclass->{$envkey}=$ttype;
1278: }
1279: }
1280: }
1281: return ($countactive,$countfuture,$inrole,$possiblerole);
1282: }
1283:
1284: sub role_timezone {
1285: my ($where,$timezones) = @_;
1286: my $timezone;
1287: if (ref($timezones) eq 'HASH') {
1288: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1289: my $cdom = $1;
1290: my $cnum = $2;
1291: if ($cdom && $cnum) {
1292: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1293: my $tz;
1294: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1295: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1296: } else {
1297: my %timehash =
1298: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1299: $tz = $timehash{'timezone'};
1300: }
1301: if ($tz eq '') {
1302: if (!exists($timezones->{$cdom})) {
1303: my %domdefaults =
1304: &Apache::lonnet::get_domain_defaults($cdom);
1305: if ($domdefaults{'timezone_def'} eq '') {
1306: $timezones->{$cdom} = 'local';
1307: } else {
1308: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1309: }
1310: }
1311: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1312: } else {
1313: $timezones->{$cdom.'_'.$cnum} =
1314: &Apache::lonlocal::gettimezone($tz);
1315: }
1316: }
1317: $timezone = $timezones->{$cdom.'_'.$cnum};
1318: }
1319: } else {
1320: my ($tdom) = ($where =~ m{^/($match_domain)});
1321: if ($tdom) {
1322: if (!exists($timezones->{$tdom})) {
1323: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1324: if ($domdefaults{'timezone_def'} eq '') {
1325: $timezones->{$tdom} = 'local';
1326: } else {
1327: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1328: }
1329: }
1330: $timezone = $timezones->{$tdom};
1331: }
1332: }
1333: if ($timezone eq 'local') {
1334: $timezone = undef;
1335: }
1336: }
1337: return $timezone;
1338: }
1339:
1340: sub roletable_headers {
1341: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1342: my $doheaders;
1343: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1344: $r->print('<br />'
1345: .&Apache::loncommon::start_data_table()
1346: .&Apache::loncommon::start_data_table_header_row()
1347: );
1348: if (!$nochoose) { $r->print('<th> </th>'); }
1349: $r->print('<th>'.&mt('User Role').'</th>'
1350: .'<th>'.&mt('Extent').'</th>'
1351: .'<th>'.&mt('Start').'</th>'
1352: .'<th>'.&mt('End').'</th>'
1353: .&Apache::loncommon::end_data_table_header_row()
1354: );
1355: $doheaders=-1;
1356: my @roletypes = &roletypes();
1357: foreach my $type (@roletypes) {
1358: my $haverole=0;
1359: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1360: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1361: $haverole=1;
1362: }
1363: }
1364: if ($haverole) { $doheaders++; }
1365: }
1366: }
1367: return $doheaders;
1368: }
1369:
1370: sub roletypes {
1371: my @types = ('Domain','Authoring Space','Course','Community','Unavailable','System');
1372: return @types;
1373: }
1374:
1375: sub print_rolerows {
1376: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1377: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1378: my @types = &roletypes();
1379: foreach my $type (@types) {
1380: my $output;
1381: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1382: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1383: if (ref($roletext) eq 'HASH') {
1384: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1385: $output.= &Apache::loncommon::start_data_table_row().
1386: $roletext->{$sortrole->{$which}}->[0].
1387: &Apache::loncommon::end_data_table_row();
1388: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1389: $output .= &Apache::loncommon::continue_data_table_row().
1390: $roletext->{$sortrole->{$which}}->[1].
1391: &Apache::loncommon::end_data_table_row();
1392: }
1393: }
1394: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
1395: if (ref($dcroles) eq 'HASH') {
1396: if ($dcroles->{$1}) {
1397: $output .= &adhoc_roles_row($1,'');
1398: }
1399: }
1400: }
1401: }
1402: }
1403: }
1404: if ($output) {
1405: if ($doheaders > 0) {
1406: $r->print(&Apache::loncommon::start_data_table_empty_row()
1407: .'<td align="center" colspan="5">'
1408: .&mt($type)
1409: .'</td>'
1410: .&Apache::loncommon::end_data_table_empty_row()
1411: );
1412: }
1413: $r->print($output);
1414: }
1415: }
1416: }
1417: }
1418:
1419: sub findcourse_advice {
1420: my ($r,$cattype) = @_;
1421: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1422: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1423: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1424: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1425: <ul>
1426: <li>'.&mt('The course has yet to be created.').'</li>
1427: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1428: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1429: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1430: <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>
1431: </ul>');
1432: } else {
1433: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1434: }
1435: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1436: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1437: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1438: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1439: &Apache::loncoursequeueadmin::queued_selfenrollment());
1440: }
1441: return;
1442: }
1443:
1444: sub requestcourse_advice {
1445: my ($r,$cattype) = @_;
1446: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1447: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1448: my (%can_request,%request_doms);
1449: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1450: if (keys(%request_doms) > 0) {
1451: my ($types,$typename) = &Apache::loncommon::course_types();
1452: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1453: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1454: '<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');
1455: my (@reqdoms,@reqtypes);
1456: foreach my $type (sort(keys(%request_doms))) {
1457: push(@reqtypes,$type);
1458: if (ref($request_doms{$type}) eq 'ARRAY') {
1459: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1460: $r->print(
1461: '<li>'
1462: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1463: '<i>',
1464: '</i>',
1465: '<b>'.$domstr.'</b>')
1466: .'</li>'
1467: );
1468: foreach my $dom (@{$request_doms{$type}}) {
1469: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1470: push(@reqdoms,$dom);
1471: }
1472: }
1473: }
1474: }
1475: my @showtypes;
1476: foreach my $type (@{$types}) {
1477: if (grep(/^\Q$type\E$/,@reqtypes)) {
1478: push(@showtypes,$type);
1479: }
1480: }
1481: my $requrl = '/adm/requestcourse';
1482: if (@reqdoms == 1) {
1483: $requrl .= '?showdom='.$reqdoms[0];
1484: }
1485: if (@showtypes > 0) {
1486: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1487: }
1488: if (@reqdoms == 1 || @showtypes > 0) {
1489: $requrl .= '&state=crstype&action=new';
1490: }
1491: $r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');
1492: }
1493: } elsif (!$env{'user.adv'}) {
1494: &findcourse_advice($r,$cattype);
1495: }
1496: return;
1497: }
1498:
1499: sub privileges_info {
1500: my ($which) = @_;
1501: my $output;
1502:
1503: $which ||= $env{'request.role'};
1504:
1505: foreach my $envkey (sort(keys(%env))) {
1506: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1507:
1508: my $where=$1;
1509: my $ttype;
1510: my $twhere;
1511: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1512: if ($trest) {
1513: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1514: $ttype='Authoring Space';
1515: $twhere='User: '.$trest.', Domain: '.$tdom;
1516: } else {
1517: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1518: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1519: if ($tsec) {
1520: my $sec_type = 'Section';
1521: if (exists($env{"user.role.gr.$where"})) {
1522: $sec_type = 'Group';
1523: }
1524: $twhere.=' ('.$sec_type.': '.$tsec.')';
1525: }
1526: }
1527: } elsif ($tdom) {
1528: $ttype='Domain';
1529: $twhere=$tdom;
1530: } else {
1531: $ttype='System';
1532: $twhere='/';
1533: }
1534: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1535: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1536: next if (!$priv);
1537:
1538: my ($prv,$restr)=split(/\&/,$priv);
1539: my $trestr='';
1540: if ($restr ne 'F') {
1541: $trestr.=' ('.
1542: join(', ',
1543: map { &Apache::lonnet::plaintext($_) }
1544: (split('',$restr))).') ';
1545: }
1546: $output .= "\n\t".
1547: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1548: }
1549: $output .= "\n".'</ul>';
1550: }
1551: return $output;
1552: }
1553:
1554: sub build_roletext {
1555: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning) = @_;
1556: my ($roletext,$roletext_end);
1557: my $is_dc=($trolecode =~ m/^dc\./);
1558: my $rowspan=($is_dc) ? ''
1559: : ' rowspan="2" ';
1560:
1561: unless ($nochoose) {
1562: my $buttonname=$trolecode;
1563: $buttonname=~s/\W//g;
1564: if (!$button) {
1565: if ($switchserver) {
1566: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1567: .'<a href="/adm/switchserver?'.$switchserver.'">'
1568: .&mt('Switch Server')
1569: .'</a></td>';
1570: } else {
1571: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1572: }
1573: if ($switchwarning) {
1574: if ($tremark eq '') {
1575: $tremark = $switchwarning;
1576: } else {
1577: $tremark .= '<br />'.$switchwarning;
1578: }
1579: }
1580: } elsif ($tstatus eq 'is') {
1581: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1582: '<input name="'.$buttonname.'" type="button" value="'.
1583: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1584: $trolecode."','".$buttonname.'\');" /></td>';
1585: } elsif ($tryagain) {
1586: $roletext.=
1587: '<td'.$rowspan.' class="'.$tbg.'">'.
1588: '<input name="'.$buttonname.'" type="button" value="'.
1589: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1590: $trolecode."','".$buttonname.'\');" /></td>';
1591: } elsif ($advanced) {
1592: $roletext.=
1593: '<td'.$rowspan.' class="'.$tbg.'">'.
1594: '<input name="'.$buttonname.'" type="button" value="'.
1595: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1596: $trolecode."','".$buttonname.'\');" /></td>';
1597: } elsif ($reinit) {
1598: $roletext.=
1599: '<td'.$rowspan.' class="'.$tbg.'">'.
1600: '<input name="'.$buttonname.'" type="button" value="'.
1601: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1602: $trolecode."','".$buttonname.'\');" /></td>';
1603: } else {
1604: $roletext.=
1605: '<td'.$rowspan.' class="'.$tbg.'">'.
1606: '<input name="'.$buttonname.'" type="button" value="'.
1607: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1608: $trolecode."','".$buttonname.'\');" /></td>';
1609: }
1610: }
1611: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1612: $tremark.=&Apache::lonannounce::showday(time,1,
1613: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1614: }
1615: $roletext.='<td>'.$trole.'</td>'
1616: .'<td>'.$twhere.'</td>'
1617: .'<td>'.$tpstart.'</td>'
1618: .'<td>'.$tpend.'</td>';
1619: if (!$is_dc) {
1620: $roletext_end = '<td colspan="4">'.
1621: $tremark.' '.
1622: '</td>';
1623: }
1624: return ($roletext,$roletext_end);
1625: }
1626:
1627: sub check_author_homeserver {
1628: my ($uname,$udom)=@_;
1629: if (($uname eq '') || ($udom eq '')) {
1630: return ('fail','');
1631: }
1632: my $home = &Apache::lonnet::homeserver($uname,$udom);
1633: if (&Apache::lonnet::host_domain($home) ne $udom) {
1634: return ('fail',$home);
1635: }
1636: my @ids=&Apache::lonnet::current_machine_ids();
1637: if (grep(/^\Q$home\E$/,@ids)) {
1638: return ('ok',$home);
1639: } else {
1640: return ('switchserver',$home);
1641: }
1642: }
1643:
1644: sub check_fordc {
1645: my ($dcroles,$update,$then) = @_;
1646: my $numdc = 0;
1647: if ($env{'user.adv'}) {
1648: foreach my $envkey (sort keys %env) {
1649: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1650: my $dcdom = $1;
1651: my $livedc = 1;
1652: my ($tstart,$tend)=split(/\./,$env{$envkey});
1653: my $limit = $update;
1654: if ($env{'request.role'} eq 'dc./'.$dcdom.'/') {
1655: $limit = $then;
1656: }
1657: if ($tstart && $tstart>$limit) { $livedc = 0; }
1658: if ($tend && $tend <$limit) { $livedc = 0; }
1659: if ($livedc) {
1660: $$dcroles{$dcdom} = $envkey;
1661: $numdc++;
1662: }
1663: }
1664: }
1665: }
1666: return $numdc;
1667: }
1668:
1669: sub adhoc_course_role {
1670: my ($refresh,$update,$then) = @_;
1671: my ($cdom,$cnum,$crstype);
1672: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1673: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1674: $crstype = &Apache::loncommon::course_type();
1675: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1676: my $setprivs;
1677: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1678: $setprivs = 1;
1679: } else {
1680: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1681: if (($start && ($start>$refresh || $start == -1)) ||
1682: ($end && $end<$update)) {
1683: $setprivs = 1;
1684: }
1685: }
1686: unless ($setprivs) {
1687: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1688: $setprivs = 1;
1689: }
1690: }
1691: if ($setprivs) {
1692: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1693: my $role = $1;
1694: my $custom_role = $2;
1695: my $usec = $3;
1696: if ($role eq 'cr') {
1697: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1698: $role .= $custom_role;
1699: } else {
1700: return;
1701: }
1702: }
1703: my (%userroles,%newrole,%newgroups,%group_privs);
1704: my %cgroups =
1705: &Apache::lonnet::get_active_groups($env{'user.domain'},
1706: $env{'user.name'},$cdom,$cnum);
1707: foreach my $group (keys(%cgroups)) {
1708: $group_privs{$group} =
1709: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1710: }
1711: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1712: my $area = '/'.$cdom.'/'.$cnum;
1713: my $spec = $role.'.'.$area;
1714: if ($usec ne '') {
1715: $spec .= '/'.$usec;
1716: $area .= '/'.$usec;
1717: }
1718: if ($role =~ /^cr/) {
1719: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1720: } else {
1721: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1722: }
1723: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1724: my $adhocstart = $refresh-1;
1725: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1726: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1727: }
1728: }
1729: }
1730: return;
1731: }
1732:
1733: sub check_forcc {
1734: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1735: my ($is_cc,$ccrole);
1736: if ($crstype eq 'Community') {
1737: $ccrole = 'co';
1738: } else {
1739: $ccrole = 'cc';
1740: }
1741: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1742: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1743: if (defined($env{$envkey})) {
1744: $is_cc = 1;
1745: my ($tstart,$tend)=split(/\./,$env{$envkey});
1746: my $limit = $update;
1747: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1748: $limit = $then;
1749: }
1750: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1751: if ($tend && $tend <$limit) { $is_cc = 0; }
1752: }
1753: }
1754: return $is_cc;
1755: }
1756:
1757: sub check_release_required {
1758: my ($loncaparev,$tcourseid,$trolecode,$required) = @_;
1759: my ($switchserver,$warning);
1760: if ($required ne '') {
1761: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
1762: my ($major,$minor) = ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
1763: if ($reqdmajor ne '' && $reqdminor ne '') {
1764: my $otherserver;
1765: if (($major eq '' && $minor eq '') ||
1766: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
1767: my ($userdomserver) = &Apache::lonnet::choose_server($env{'user.domain'},undef,$required);
1768: my $switchlcrev =
1769: &Apache::lonnet::get_server_loncaparev($env{'user.domain'},
1770: $userdomserver);
1771: my ($swmajor,$swminor) = ($switchlcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
1772: if (($swmajor eq '' && $swminor eq '') || ($reqdmajor > $swmajor) ||
1773: (($reqdmajor == $swmajor) && ($reqdminor > $swminor))) {
1774: my $cdom = $env{'course.'.$tcourseid.'.domain'};
1775: if ($cdom ne $env{'user.domain'}) {
1776: my ($coursedomserver,$coursehostname) = &Apache::lonnet::choose_server($cdom);
1777: my $serverhomeID = &Apache::lonnet::get_server_homeID($coursehostname);
1778: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1779: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1780: my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'});
1781: my $remoterev = &Apache::lonnet::get_server_loncaparev($serverhomedom,$coursedomserver);
1782: my $canhost =
1783: &Apache::lonnet::can_host_session($env{'user.domain'},
1784: $coursedomserver,
1785: $remoterev,
1786: $udomdefaults{'remotesessions'},
1787: $defdomdefaults{'hostedsessions'});
1788:
1789: if ($canhost) {
1790: $otherserver = $coursedomserver;
1791: } else {
1792: $warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'. &mt("No suitable server could be found amongst servers in either your own domain or in the course's domain.");
1793: }
1794: } else {
1795: $warning = &mt('Requires LON-CAPA version [_1].',$env{'course.'.$tcourseid.'.internal.releaserequired'}).'<br />'.&mt("No suitable server could be found amongst servers in your own domain (which is also the course's domain).");
1796: }
1797: } else {
1798: $otherserver = $userdomserver;
1799: }
1800: }
1801: if ($otherserver ne '') {
1802: $switchserver = 'otherserver='.$otherserver.'&role='.$trolecode;
1803: }
1804: }
1805: }
1806: return ($switchserver,$warning);
1807: }
1808:
1809: sub courselink {
1810: my ($dcdom,$rowtype) = @_;
1811: my $courseform=&Apache::loncommon::selectcourse_link
1812: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1813: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1814: $dcdom,$dcdom,undef,'Course/Community');
1815: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1816: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1817: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1818: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1819: return $courseform.$hiddenitems;
1820: }
1821:
1822: sub coursepick_jscript {
1823: my %lt = &Apache::lonlocal::texthash(
1824: 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.",
1825: youc => 'You can only use this screen to select courses and communities in the current domain.',
1826: );
1827: my $verify_script = <<"END";
1828: <script type="text/javascript">
1829: // <![CDATA[
1830: function verifyCoursePick(caller) {
1831: var numbutton = getIndex(caller)
1832: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1833: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1834: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1835: if (pickedCourse != '') {
1836: if (numbutton != -1) {
1837: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1838: document.rolechoice.elements[numbutton+1].name = courseTarget
1839: document.rolechoice.submit()
1840: }
1841: }
1842: else {
1843: alert("$lt{'plsu'}");
1844: }
1845: }
1846: else {
1847: alert("$lt{'youc'}")
1848: }
1849: }
1850: function getIndex(caller) {
1851: for (var i=0;i<document.rolechoice.elements.length;i++) {
1852: if (document.rolechoice.elements[i] == caller) {
1853: return i;
1854: }
1855: }
1856: return -1;
1857: }
1858: // ]]>
1859: </script>
1860: END
1861: return $verify_script;
1862: }
1863:
1864: sub coauthorlink {
1865: my ($dcdom,$rowtype) = @_;
1866: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1867: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1868: return $coauthorform.$hiddenitems;
1869: }
1870:
1871: sub display_cc_role {
1872: my $rolekey = shift;
1873: my ($roletext,$roletext_end);
1874: my $advanced = $env{'user.adv'};
1875: my $tryagain = $env{'form.tryagain'};
1876: unless ($rolekey =~/^error\:/) {
1877: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
1878: my $ccrole = $1;
1879: my $tdom = $2;
1880: my $trest = $3;
1881: my $tcourseid = $tdom.'_'.$trest;
1882: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
1883: my $twhere;
1884: my $ttype;
1885: my $tbg='LC_roles_is';
1886: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1887: if (%newhash) {
1888: $twhere=$newhash{'description'}.
1889: ' <span class="LC_fontsize_small">'.
1890: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1891: '</span>';
1892: $ttype = $newhash{'type'};
1893: } else {
1894: $twhere=&mt('Currently not available');
1895: $env{'course.'.$tcourseid.'.description'}=$twhere;
1896: }
1897: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
1898: $twhere.="<br />".&mt('Domain').":".$tdom;
1899: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1900: }
1901: }
1902: return ($roletext,$roletext_end);
1903: }
1904:
1905: sub adhoc_roles_row {
1906: my ($dcdom,$rowtype) = @_;
1907: my $output = &Apache::loncommon::continue_data_table_row()
1908: .' <td colspan="5">'
1909: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1910: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1911: .' ';
1912: my $selectcclink = &courselink($dcdom,$rowtype);
1913: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
1914: my $carole = &Apache::lonnet::plaintext('ca');
1915: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1916: $output.=$ccrole.': '.$selectcclink
1917: .' | '.$carole.': '.$selectcalink.'</td>'
1918: .&Apache::loncommon::end_data_table_row();
1919: return $output;
1920: }
1921:
1922: sub recent_filename {
1923: my $area=shift;
1924: return 'nohist_recent_'.&escape($area);
1925: }
1926:
1927: sub courseloadpage {
1928: my ($courseid) = @_;
1929: my $startpage;
1930: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1931: [$courseid.':courseinit']);
1932: my ($tmp) = %entry_settings;
1933: unless ($tmp =~ /^error: 2 /) {
1934: $startpage = $entry_settings{$courseid.':courseinit'};
1935: }
1936: if ($startpage eq '') {
1937: if (exists($env{'environment.course_init_display'})) {
1938: $startpage = $env{'environment.course_init_display'};
1939: }
1940: }
1941: return $startpage;
1942: }
1943:
1944: sub update_session_roles {
1945: my $then=$env{'user.login.time'};
1946: my $refresh=$env{'user.refresh.time'};
1947: if (!$refresh) {
1948: $refresh = $then;
1949: }
1950: my $update = $env{'user.update.time'};
1951: if (!$update) {
1952: $update = $then;
1953: }
1954: my $now = time;
1955: my %roleshash =
1956: &Apache::lonnet::get_my_roles('','','userroles',
1957: ['active','future','previous'],
1958: undef,undef,1);
1959: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
1960: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
1961: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
1962: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
1963: @rolecodes);
1964: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
1965: my %courseroles;
1966: foreach my $item (keys(%roleshash)) {
1967: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
1968: my ($tstart,$tend) = split(/:/,$roleshash{$item});
1969: my ($section,$group,@group_privs);
1970: if ($role =~ m{^gr/(\w*)$}) {
1971: $role = 'gr';
1972: my $priv = $1;
1973: next if ($tstart eq '-1');
1974: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
1975: if ($priv ne '') {
1976: push(@group_privs,$priv);
1977: }
1978: }
1979: if ($remainder =~ /:/) {
1980: (my $additional_privs,$group) =
1981: ($remainder =~ /^([\w:]+):([^:]+)$/);
1982: if ($additional_privs ne '') {
1983: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
1984: push(@group_privs,split(/:/,$additional_privs));
1985: @group_privs = sort(@group_privs);
1986: }
1987: }
1988: } else {
1989: $group = $remainder;
1990: }
1991: } else {
1992: $section = $remainder;
1993: }
1994: my $where = "/$udom/$uname";
1995: if ($section ne '') {
1996: $where .= "/$section";
1997: } elsif ($group ne '') {
1998: $where .= "/$group";
1999: }
2000: my $rolekey = "$role.$where";
2001: my $envkey = "user.role.$rolekey";
2002: $dbroles{$envkey} = 1;
2003: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2004: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2005: $currrole_expired = 1;
2006: }
2007: }
2008: if ($env{$envkey} eq '') {
2009: my $status_in_db =
2010: &curr_role_status($tstart,$tend,$now,$now);
2011: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2012: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2013: if ($status_in_db eq 'active') {
2014: if ($section eq '') {
2015: push(@newsec,'none');
2016: } else {
2017: push(@newsec,$section);
2018: }
2019: }
2020: } else {
2021: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2022: push(@changed_roles,$role);
2023: }
2024: if ($status_in_db ne 'previous') {
2025: if ($role eq 'gr') {
2026: $newgroup{$rolekey} = $status_in_db;
2027: if ($status_in_db eq 'active') {
2028: unless (ref($courseroles{$udom}) eq 'HASH') {
2029: %{$courseroles{$udom}} =
2030: &Apache::lonnet::get_my_roles('','','userroles',
2031: ['active'],\@possroles,
2032: [$udom],1);
2033: }
2034: &Apache::lonnet::get_groups_roles($udom,$uname,
2035: $courseroles{$udom},
2036: \@rolecodes,\%groups_roles);
2037: }
2038: } else {
2039: $newrole{$rolekey} = $status_in_db;
2040: }
2041: }
2042: }
2043: } else {
2044: my ($currstart,$currend) = split(/\./,$env{$envkey});
2045: if ($role eq 'gr') {
2046: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2047: $hasgroups = 1;
2048: }
2049: }
2050: if (($currstart ne $tstart) || ($currend ne $tend)) {
2051: my $status_in_env =
2052: &curr_role_status($currstart,$currend,$refresh,$update);
2053: my $status_in_db =
2054: &curr_role_status($tstart,$tend,$now,$now);
2055: if ($status_in_env ne $status_in_db) {
2056: if ($status_in_env eq 'active') {
2057: if ($role eq 'st') {
2058: if ($env{'request.role'} eq $rolekey) {
2059: my $switchsection;
2060: unless (ref($courseroles{$udom}) eq 'HASH') {
2061: %{$courseroles{$udom}} =
2062: &Apache::lonnet::get_my_roles('','','userroles',
2063: ['active'],
2064: \@possroles,[$udom],1);
2065: }
2066: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2067: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2068: $switchsection = 1;
2069: last;
2070: }
2071: }
2072: if ($switchsection) {
2073: if ($section eq '') {
2074: $oldsec = 'none';
2075: } else {
2076: $oldsec = $section;
2077: }
2078: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2079: } else {
2080: $currrole_expired = 1;
2081: next;
2082: }
2083: }
2084: }
2085: unless ($rolekey eq $env{'request.role'}) {
2086: if ($role eq 'gr') {
2087: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2088: } else {
2089: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2090: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2091: }
2092: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2093: }
2094: } elsif ($status_in_db eq 'active') {
2095: if (($role eq 'st') &&
2096: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2097: if ($section eq '') {
2098: push(@newsec,'none');
2099: } else {
2100: push(@newsec,$section);
2101: }
2102: } elsif ($role eq 'gr') {
2103: unless (ref($courseroles{$udom}) eq 'HASH') {
2104: %{$courseroles{$udom}} =
2105: &Apache::lonnet::get_my_roles('','','userroles',
2106: ['active'],
2107: \@possroles,[$udom],1);
2108: }
2109: &Apache::lonnet::get_groups_roles($udom,$uname,
2110: $courseroles{$udom},
2111: \@rolecodes,\%groups_roles);
2112: }
2113: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2114: }
2115: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2116: push(@changed_roles,$role);
2117: }
2118: if ($role eq 'gr') {
2119: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2120: } else {
2121: $rolechange{$rolekey} = $status_in_db;
2122: }
2123: }
2124: } else {
2125: if ($role eq 'gr') {
2126: unless ($checkedgroup{$where}) {
2127: my $status_in_db =
2128: &curr_role_status($tstart,$tend,$refresh,$now);
2129: if ($tstart eq '-1') {
2130: $status_in_db = 'deleted';
2131: }
2132: unless (ref($courseroles{$udom}) eq 'HASH') {
2133: %{$courseroles{$udom}} =
2134: &Apache::lonnet::get_my_roles('','','userroles',
2135: ['active'],
2136: \@possroles,[$udom],1);
2137: }
2138: if (ref($courseroles{$udom}) eq 'HASH') {
2139: foreach my $item (keys(%{$courseroles{$udom}})) {
2140: next unless ($item =~ /^\Q$uname\E/);
2141: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2142: my $area = '/'.$cdom.'/'.$cnum;
2143: if ($crssec ne '') {
2144: $area .= '/'.$crssec;
2145: }
2146: my $crsrolekey = $crsrole.'.'.$area;
2147: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2148: $currprivs =~ s/^://;
2149: $currprivs =~ s/\&F$//;
2150: my @curr_grp_privs = split(/\&F:/,$currprivs);
2151: @curr_grp_privs = sort(@curr_grp_privs);
2152: my @diffs;
2153: if (@group_privs > 0 || @curr_grp_privs > 0) {
2154: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2155: }
2156: if (@diffs == 0) {
2157: last;
2158: } else {
2159: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2160: push(@rolecodes,'gr');
2161: }
2162: &gather_roleprivs(\%allroles,\%allgroups,
2163: \%userroles,$where,$role,
2164: $tstart,$tend,$status_in_db);
2165: if ($status_in_db eq 'active') {
2166: &Apache::lonnet::get_groups_roles($udom,$uname,
2167: $courseroles{$udom},
2168: \@rolecodes,\%groups_roles);
2169: }
2170: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2171: last;
2172: }
2173: }
2174: }
2175: $checkedgroup{$where} = 1;
2176: }
2177: } elsif ($role =~ /^cr/) {
2178: my $status_in_db =
2179: &curr_role_status($tstart,$tend,$refresh,$now);
2180: my ($rdummy,$rest) = split(/\//,$role,2);
2181: my %currpriv;
2182: unless (exists($crprivs{$rest})) {
2183: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2184: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2185: if (&Apache::lonnet::hostname($homsvr) ne '') {
2186: my ($rdummy,$roledef)=
2187: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2188: $rdomain,$rauthor);
2189: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2190: my $i = 0;
2191: my @scopes = ('sys','dom','crs');
2192: my @privs = split(/\_/,$roledef);
2193: foreach my $priv (@privs) {
2194: my ($blank,@prv) = split(/:/,$priv);
2195: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2196: if (@prv) {
2197: $priv = ':'.join(':',sort(@prv));
2198: }
2199: $crprivs{$rest}{$scopes[$i]} = $priv;
2200: $i++;
2201: }
2202: }
2203: }
2204: }
2205: my $status_in_env =
2206: &curr_role_status($currstart,$currend,$refresh,$update);
2207: if ($status_in_env eq 'active') {
2208: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2209: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2210: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2211: if (keys(%crprivs)) {
2212: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2213: ($crprivs{$rest}{dom} ne $currpriv{dom})
2214: ||
2215: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2216: &gather_roleprivs(\%allroles,\%allgroups,
2217: \%userroles,$where,$role,
2218: $tstart,$tend,$status_in_db);
2219: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2220: push(@changed_roles,$role);
2221: }
2222: $customprivchg{$rolekey} = $status_in_env;
2223: }
2224: }
2225: }
2226: }
2227: }
2228: }
2229: }
2230: foreach my $envkey (keys(%env)) {
2231: next unless ($envkey =~ /^user\.role\./);
2232: next if ($dbroles{$envkey});
2233: next if ($envkey eq 'user.role.'.$env{'request.role'});
2234: my ($currstart,$currend) = split(/\./,$env{$envkey});
2235: my $status_in_env =
2236: &curr_role_status($currstart,$currend,$refresh,$update);
2237: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2238: my ($role,$rest)=split(m{\./},$rolekey,2);
2239: $rest = '/'.$rest;
2240: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2241: if ($status_in_env eq 'active') {
2242: if ($role eq 'gr') {
2243: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2244: \@possroles);
2245: } else {
2246: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2247: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2248: }
2249: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2250: push(@changed_roles,$role);
2251: }
2252: $deletedroles{$rolekey} = 1;
2253: }
2254: }
2255: }
2256: if (($oldsec) && (@newsec > 0)) {
2257: if (@newsec > 1) {
2258: $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>';
2259: } else {
2260: my $newrole = $env{'request.role'};
2261: if ($newsec[0] eq 'none') {
2262: $newrole =~ s{(/[^/])$}{};
2263: } elsif ($oldsec eq 'none') {
2264: $newrole .= '/'.$newsec[0];
2265: } else {
2266: $newrole =~ s{([^/]+)$}{$newsec[0]};
2267: }
2268: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2269: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2270: my %temp=('logout_'.$env{'request.course.id'} => time);
2271: &Apache::lonnet::put('email_status',\%temp);
2272: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2273: &Apache::lonnet::appenv({"request.course.id" => '',
2274: "request.course.fn" => '',
2275: "request.course.uri" => '',
2276: "request.course.sec" => '',
2277: "request.role" => 'cm',
2278: "request.role.adv" => $env{'user.adv'},
2279: "request.role.domain" => $env{'user.domain'}});
2280: my $rolename = &Apache::loncommon::plainname($curr_role);
2281: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2282: '<input type="hidden" name="newrole" value="" />'.
2283: '<input type="hidden" name="selectrole" value="1" />'.
2284: '<span class="LC_info">'.
2285: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2286: my $button = '<input type="button" name="sectionchanged" value="'.
2287: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2288: if ($newsec[0] eq 'none') {
2289: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2290: } else {
2291: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2292: }
2293: $msg .= '</form></p>';
2294: }
2295: } elsif ($currrole_expired) {
2296: $msg .= '<p class="LC_warning">';
2297: if (&Apache::loncommon::show_course()) {
2298: $msg .= &mt('Your role in the current course has expired.');
2299: } else {
2300: $msg .= &mt('Your current role has expired.');
2301: }
2302: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2303: }
2304: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2305: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2306: $curr_author = $env{'user.author'};
2307: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2308: ($env{'request.role'} =~/^aa/)) {
2309: $curr_role_author=1;
2310: }
2311: $curr_is_adv = $env{'user.adv'};
2312: $curr_role_adv = $env{'request.role.adv'};
2313: if (keys(%userroles) > 0) {
2314: foreach my $role (@changed_roles) {
2315: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2316: push(@rolecodes,$role);
2317: }
2318: }
2319: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2320: push(@rolecodes,'cm');
2321: }
2322: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2323: }
2324: my %newenv;
2325: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2326: unless ($curr_is_adv) {
2327: $newenv{'user.adv'} = 1;
2328: }
2329: } elsif ($curr_is_adv && !$curr_role_adv) {
2330: &Apache::lonnet::delenv('user.adv');
2331: }
2332: my %authorroleshash =
2333: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2334: if (keys(%authorroleshash)) {
2335: unless ($curr_author) {
2336: $newenv{'user.author'} = 1;
2337: }
2338: } elsif ($curr_author && !$curr_role_author) {
2339: &Apache::lonnet::delenv('user.author');
2340: }
2341: if ($env{'request.course.id'}) {
2342: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2343: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2344: my (@activecrsgroups,$crsgroupschanged);
2345: if ($env{'request.course.groups'}) {
2346: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2347: foreach my $item (keys(%deletedroles)) {
2348: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2349: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2350: $crsgroupschanged = 1;
2351: last;
2352: }
2353: }
2354: }
2355: }
2356: unless ($crsgroupschanged) {
2357: foreach my $item (keys(%newgroup)) {
2358: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2359: if ($newgroup{$item} eq 'active') {
2360: $crsgroupschanged = 1;
2361: last;
2362: }
2363: }
2364: }
2365: }
2366: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2367: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2368: ($crsgroupschanged)) {
2369: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2370: ['active'],['gr'],[$cdom],1);
2371: my @activegroups;
2372: foreach my $item (keys(%grouproles)) {
2373: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2374: my $group;
2375: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2376: if ($remainder =~ /:/) {
2377: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2378: } else {
2379: $group = $remainder;
2380: }
2381: if ($group ne '') {
2382: push(@activegroups,$group);
2383: }
2384: }
2385: $newenv{'request.course.groups'} = join(':',@activegroups);
2386: }
2387: }
2388: if (keys(%newenv)) {
2389: &Apache::lonnet::appenv(\%newenv);
2390: }
2391: if (!@changed_roles || !(keys(%changed_groups))) {
2392: my ($rolesmsg,$groupsmsg);
2393: if (!@changed_roles) {
2394: if (&Apache::loncommon::show_course()) {
2395: $rolesmsg = &mt('No new courses or communities');
2396: } else {
2397: $rolesmsg = &mt('No role changes');
2398: }
2399: }
2400: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2401: $groupsmsg = &mt('No changes in course/community groups');
2402: }
2403: if (!@changed_roles && !(keys(%changed_groups))) {
2404: if (($msg ne '') || ($groupsmsg ne '')) {
2405: $msg .= '<ul>';
2406: if ($rolesmsg) {
2407: $msg .= '<li>'.$rolesmsg.'</li>';
2408: }
2409: if ($groupsmsg) {
2410: $msg .= '<li>'.$groupsmsg.'</li>';
2411: }
2412: $msg .= '</ul>';
2413: } else {
2414: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2415: }
2416: return $msg;
2417: }
2418: }
2419: my $changemsg;
2420: if (@changed_roles > 0) {
2421: if (keys(%newgroup) > 0) {
2422: my $groupmsg;
2423: my (%curr_groups,%groupdescs,$currcrs);
2424: foreach my $item (sort(keys(%newgroup))) {
2425: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2426: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2427: my ($cdom,$cnum) = split(/\//,$1);
2428: my $group = $2;
2429: if ($currcrs ne $cdom.'_'.$cnum) {
2430: if ($currcrs) {
2431: $groupmsg .= '</ul><li>';
2432: }
2433: $groupmsg .= '<li><b>'.
2434: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2435: $currcrs = $cdom.'_'.$cnum;
2436: }
2437: my $groupdesc;
2438: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2439: %{$curr_groups{$cdom.'_'.$cnum}} =
2440: &Apache::longroup::coursegroups($cdom,$cnum);
2441: }
2442: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2443: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2444:
2445: my %groupinfo =
2446: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2447: $groupdescs{$cdom.'_'.$cnum}{$group} =
2448: &unescape($groupinfo{'description'});
2449: }
2450: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2451: if ($groupdesc) {
2452: $groupmsg .= '<li>'.
2453: &mt('[_1] with status: [_2].',
2454: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2455: }
2456: }
2457: }
2458: if ($groupmsg) {
2459: $groupmsg .= '</ul></li>';
2460: }
2461: }
2462: if ($groupmsg) {
2463: $changemsg .= '<li>'.
2464: &mt('Courses with new groups').'</li>'.
2465: '<ul>'.$groupmsg.'</ul></li>';
2466: }
2467: }
2468: if (keys(%newrole) > 0) {
2469: my $newmsg;
2470: foreach my $item (sort(keys(%newrole))) {
2471: my $desc = &role_desc($item,$update,$refresh,$now);
2472: if ($desc) {
2473: $newmsg .= '<li>'.
2474: &mt('[_1] with status: [_2].',
2475: $desc,&mt($newrole{$item})).'</li>';
2476: }
2477: }
2478: if ($newmsg) {
2479: $changemsg .= '<li>'.&mt('New roles').
2480: '<ul>'.$newmsg.'</ul>'.
2481: '</li>';
2482: }
2483: }
2484: if (keys(%customprivchg) > 0) {
2485: my $privmsg;
2486: foreach my $item (sort(keys(%customprivchg))) {
2487: my $desc = &role_desc($item,$update,$refresh,$now);
2488: if ($desc) {
2489: $privmsg .= '<li>'.$desc.'</li>';
2490: }
2491: }
2492: if ($privmsg) {
2493: $changemsg .= '<li>'.
2494: &mt('Custom roles with privilege changes').
2495: '<ul>'.$privmsg.'</ul>'.
2496: '</li>';
2497: }
2498: }
2499: if (keys(%rolechange) > 0) {
2500: my $rolemsg;
2501: foreach my $item (sort(keys(%rolechange))) {
2502: my $desc = &role_desc($item,$update,$refresh,$now);
2503: if ($desc) {
2504: $rolemsg .= '<li>'.
2505: &mt('[_1] status now: [_2].',$desc,
2506: $rolechange{$item}).'</li>';
2507: }
2508: }
2509: if ($rolemsg) {
2510: $changemsg .= '<li>'.
2511: &mt('Existing roles with status changes').'</li>'.
2512: '<ul>'.$rolemsg.'</ul>'.
2513: '</li>';
2514: }
2515: }
2516: if (keys(%deletedroles) > 0) {
2517: my $delmsg;
2518: foreach my $item (sort(keys(%deletedroles))) {
2519: my $desc = &role_desc($item,$update,$refresh,$now);
2520: if ($desc) {
2521: $delmsg .= '<li>'.$desc.'</li>';
2522: }
2523: }
2524: if ($delmsg) {
2525: $changemsg .= '<li>'.
2526: &mt('Existing roles now expired').'</li>'.
2527: '<ul>'.$delmsg.'</ul>'.
2528: '</li>';
2529: }
2530: }
2531: }
2532: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2533: my $groupchgmsg;
2534: foreach my $key (sort(keys(%changed_groups))) {
2535: my $crs = 'gr/'.$key;
2536: $crs =~ s/_/\//;
2537: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2538: if (ref($changed_groups{$key}) eq 'HASH') {
2539: my @showgroups;
2540: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2541: if ($changed_groups{$key}{$group} eq 'active') {
2542: push(@showgroups,$group);
2543: }
2544: }
2545: if (@showgroups > 0) {
2546: $groupchgmsg .= '<li>'.
2547: &mt('Course: [_1], groups: [_2].',$key,
2548: join(', ',@showgroups)).
2549: '</li>';
2550: }
2551: }
2552: }
2553: }
2554: if (keys(%groupchange) > 0) {
2555: $groupchgmsg .= '<li>'.
2556: &mt('Existing course/community groups with status changes').'</li>'.
2557: '<ul>';
2558: foreach my $crs (sort(keys(%groupchange))) {
2559: my $cid = $crs;
2560: $cid=~s{^/}{};
2561: $cid=~s{/}{_};
2562: my $crsdesc = $env{'course.'.$cid.'.description'};
2563: my $cdom = $env{'course.'.$cid.'.domain'};
2564: my $cnum = $env{'course.'.$cid.'.num'};
2565: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2566: my %groupdesc;
2567: if (ref($groupchange{$crs}) eq 'HASH') {
2568: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2569: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2570: unless ($groupdesc{$group}) {
2571: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2572: $groupdesc{$group} = &unescape($groupinfo{'description'});
2573: }
2574: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2575: }
2576: $groupchgmsg .= '</ul></li>';
2577: }
2578: }
2579: $groupchgmsg .= '</ul></li>';
2580: }
2581: if ($groupchgmsg) {
2582: $changemsg .= '<li>'.
2583: &mt('Courses with changes in groups').'</li>'.
2584: '<ul>'.$groupchgmsg.'</ul></li>';
2585: }
2586: }
2587: if ($changemsg) {
2588: $msg .= '<ul>'.$changemsg.'</ul>';
2589: } else {
2590: if (&Apache::loncommon::show_course()) {
2591: $msg = &mt('No new courses or communities');
2592: } else {
2593: $msg = &mt('No role changes');
2594: }
2595: }
2596: return $msg;
2597: }
2598:
2599: sub role_desc {
2600: my ($item,$update,$refresh,$now) = @_;
2601: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2602: $trole,$tremark);
2603: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2604: $now,\$role,\$where,\$trolecode,
2605: \$tstatus,\$tstart,\$tend);
2606: return unless ($role);
2607: if ($role =~ /^cr\//) {
2608: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2609: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2610: }
2611: $trole=Apache::lonnet::plaintext($role);
2612: my ($tdom,$trest,$tsection)=
2613: split(/\//,Apache::lonnet::declutter($where));
2614: if (($role eq 'ca') || ($role eq 'aa')) {
2615: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2616: $home = &Apache::lonnet::hostname($home);
2617: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2618: ': '.$tdom.' '.&mt('Server').': '.$home;
2619: } elsif ($role eq 'au') {
2620: my $home = &Apache::lonnet::homeserver
2621: ($env{'user.name'},$env{'user.domain'});
2622: $home = &Apache::lonnet::hostname($home);
2623: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2624: ': '.$home;
2625: } elsif ($trest) {
2626: my $tcourseid=$tdom.'_'.$trest;
2627: my $crstype = &Apache::loncommon::course_type($tcourseid);
2628: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2629: if ($env{'course.'.$tcourseid.'.description'}) {
2630: $twhere=$env{'course.'.$tcourseid.'.description'};
2631: } else {
2632: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2633: if (%newhash) {
2634: $twhere=$newhash{'description'};
2635: } else {
2636: $twhere=&mt('Currently not available');
2637: }
2638: }
2639: if ($tsection) {
2640: $twhere.= ' '.&mt('Section').': '.$tsection;
2641: }
2642: if ($role ne 'st') {
2643: $twhere.= ' '.&mt('Domain').': '.$tdom;
2644: }
2645: } elsif ($tdom) {
2646: $twhere = &mt('Domain').': '.$tdom;
2647: }
2648: my $output;
2649: if ($trole) {
2650: $output = $trole;
2651: if ($twhere) {
2652: $output .= " -- $twhere";
2653: }
2654: if ($tremark) {
2655: $output .= '<br />'.$tremark;
2656: }
2657: }
2658: return $output;
2659: }
2660:
2661: sub curr_role_status {
2662: my ($start,$end,$refresh,$update) = @_;
2663: if (($start) && ($start<0)) { return 'deleted' };
2664: my $status = 'active';
2665: if (($end) && ($end<=$update)) {
2666: $status = 'previous';
2667: }
2668: if (($start) && ($refresh<$start)) {
2669: $status = 'future';
2670: }
2671: return $status;
2672: }
2673:
2674: sub gather_roleprivs {
2675: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2676: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2677: if (($area ne '') && ($role ne '')) {
2678: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2679: $area,$tstart,$tend);
2680: my $spec=$role.'.'.$area;
2681: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2682: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2683: if ($status eq 'active') {
2684: if ($role =~ /^cr\//) {
2685: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2686: } elsif ($role eq 'gr') {
2687: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2688: $env{'user.domain'},
2689: $env{'user.name'});
2690: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2691: (undef,my $group_privs) = split(/\//,$trole);
2692: $group_privs = &unescape($group_privs);
2693: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2694: } else {
2695: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2696: }
2697: }
2698: }
2699: return;
2700: }
2701:
2702: sub is_active_course {
2703: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2704: return unless(ref($roleshashref) eq 'HASH');
2705: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2706: my $is_active;
2707: foreach my $key (keys(%{$roleshashref})) {
2708: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2709: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2710: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2711: if ($status eq 'active') {
2712: $is_active = 1;
2713: last;
2714: }
2715: }
2716: }
2717: return $is_active;
2718: }
2719:
2720: sub get_roles_functions {
2721: my ($rolescount,$cattype) = @_;
2722: my @links;
2723: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2724: if ($env{'environment.canrequest.author'}) {
2725: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2726: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2727: }
2728: }
2729: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2730: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2731: }
2732: if (&Apache::lonmenu::check_for_rcrs()) {
2733: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2734: }
2735: if ($env{'form.state'} eq 'queued') {
2736: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2737: } else {
2738: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2739: }
2740: if ($env{'user.adv'}) {
2741: if ($env{'form.display'} eq 'showall') {
2742: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2743: } else {
2744: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2745: }
2746: }
2747: unless ($cattype eq 'none') {
2748: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2749: }
2750: my $funcs = &Apache::lonhtmlcommon::start_funclist();
2751: foreach my $link (@links) {
2752: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2753: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2754: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2755: $link->[2].'</a>');
2756: }
2757: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2758: return &Apache::loncommon::head_subbox($funcs);
2759: }
2760:
2761: sub get_queued {
2762: my ($output,%reqcrs);
2763: my ($types,$typenames) = &Apache::loncommon::course_types();
2764: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2765: $env{'user.name'},'^status:');
2766: foreach my $key (keys(%statusinfo)) {
2767: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2768: (undef,my($cdom,$cnum)) = split(/:/,$key);
2769: my $requestkey = $cdom.'_'.$cnum;
2770: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2771: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2772: $env{'user.domain'},$env{'user.name'});
2773: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2774: my $reqtime = $history{'reqtime'};
2775: my $lastupdate = $history{'timestamp'};
2776: my $showtype = $history{'crstype'};
2777: if (defined($typenames->{$history{'crstype'}})) {
2778: $showtype = $typenames->{$history{'crstype'}};
2779: }
2780: my $description;
2781: if (ref($history{'details'}) eq 'HASH') {
2782: $description = $history{details}{'cdescr'};
2783: }
2784: @{$reqcrs{$reqtime}} = ($description,$showtype);
2785: }
2786: }
2787: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2788: if (@sortedtimes > 0) {
2789: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2790: &Apache::loncommon::start_data_table().
2791: &Apache::loncommon::start_data_table_header_row().
2792: '<th>'.&mt('Date requested').'</th>'.
2793: '<th>'.&mt('Course title').'</th>'.
2794: '<th>'.&mt('Course type').'</th>';
2795: &Apache::loncommon::end_data_table_header_row();
2796: foreach my $reqtime (@sortedtimes) {
2797: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2798: $output .= &Apache::loncommon::start_data_table_row().
2799: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2800: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2801: &Apache::loncommon::end_data_table_row();
2802: }
2803: $output .= &Apache::loncommon::end_data_table().
2804: '<br /></p>';
2805: }
2806: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
2807: if ($queuedselfenroll) {
2808: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
2809: $queuedselfenroll.'<br /></p>';
2810: }
2811: if ($env{'environment.canrequest.author'}) {
2812: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2813: my $requestauthor;
2814: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
2815: if (($status eq 'approval') || ($status eq 'approved')) {
2816: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
2817: if ($status eq 'approval') {
2818: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
2819: &Apache::lonlocal::locallocaltime($timestamp));
2820: } elsif ($status eq 'approved') {
2821: my %roleshash =
2822: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
2823: ['active'],['au'],[$env{'user.domain'}]);
2824: if (keys(%roleshash)) {
2825: $output .= '<span class="LC_info">'.
2826: &mt('Your request for an author role has been approved.').'<br />'.
2827: &mt('Use the "Check for changes" link to update your list of roles.').
2828: '</span>';
2829: }
2830: }
2831: $output .= '</p>';
2832: }
2833: }
2834: }
2835: unless ($output) {
2836: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
2837: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
2838: $output = &mt('No requests for courses, communities or authoring currently queued');
2839: } else {
2840: $output = &mt('No enrollment requests currently queued awaiting approval');
2841: }
2842: }
2843: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
2844: $output.'</fieldset></div><br clear="all" />';
2845: }
2846:
2847: 1;
2848: __END__
2849:
2850: =head1 NAME
2851:
2852: Apache::lonroles - User Roles Screen
2853:
2854: =head1 SYNOPSIS
2855:
2856: Invoked by /etc/httpd/conf/srm.conf:
2857:
2858: <Location /adm/roles>
2859: PerlAccessHandler Apache::lonacc
2860: SetHandler perl-script
2861: PerlHandler Apache::lonroles
2862: ErrorDocument 403 /adm/login
2863: ErrorDocument 500 /adm/errorhandler
2864: </Location>
2865:
2866: =head1 OVERVIEW
2867:
2868: =head2 Choosing Roles
2869:
2870: C<lonroles> is a handler that allows a user to switch roles in
2871: mid-session. LON-CAPA attempts to work with "No Role Specified", the
2872: default role that a user has before selecting a role, as widely as
2873: possible, but certain handlers for example need specification which
2874: course they should act on, etc. Both in this scenario, and when the
2875: handler determines via C<lonnet>'s C<&allowed> function that a certain
2876: action is not allowed, C<lonroles> is used as error handler. This
2877: allows the user to select another role which may have permission to do
2878: what they were trying to do.
2879:
2880: =begin latex
2881:
2882: \begin{figure}
2883: \begin{center}
2884: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
2885: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
2886: \end{center}
2887: \end{figure}
2888:
2889: =end latex
2890:
2891: =head2 Role Initialization
2892:
2893: 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.
2894:
2895: =head1 INTRODUCTION
2896:
2897: This module enables a user to select what role he wishes to
2898: operate under (instructor, student, teaching assistant, course
2899: coordinator, etc). These roles are pre-established by the actions
2900: of upper-level users.
2901:
2902: This is part of the LearningOnline Network with CAPA project
2903: described at http://www.lon-capa.org.
2904:
2905: =head1 HANDLER SUBROUTINE
2906:
2907: This routine is called by Apache and mod_perl.
2908:
2909: =over 4
2910:
2911: =item *
2912:
2913: Roles Initialization (yes/no)
2914:
2915: =item *
2916:
2917: Get Error Message from Environment
2918:
2919: =item *
2920:
2921: Who is this?
2922:
2923: =item *
2924:
2925: Generate Page Output
2926:
2927: =item *
2928:
2929: Choice or no choice
2930:
2931: =item *
2932:
2933: Table
2934:
2935: =item *
2936:
2937: Privileges
2938:
2939: =back
2940:
2941: =cut
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