1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.327 2017/03/08 02:51:13 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: =pod
31:
32: =head1 NAME
33:
34: Apache::lonroles - User Roles Screen
35:
36: =head1 SYNOPSIS
37:
38: Invoked by /etc/httpd/conf/srm.conf:
39:
40: <Location /adm/roles>
41: PerlAccessHandler Apache::lonacc
42: SetHandler perl-script
43: PerlHandler Apache::lonroles
44: ErrorDocument 403 /adm/login
45: ErrorDocument 500 /adm/errorhandler
46: </Location>
47:
48: =head1 OVERVIEW
49:
50: =head2 Choosing Roles
51:
52: C<lonroles> is a handler that allows a user to switch roles in
53: mid-session. LON-CAPA attempts to work with "No Role Specified", the
54: default role that a user has before selecting a role, as widely as
55: possible, but certain handlers for example need specification which
56: course they should act on, etc. Both in this scenario, and when the
57: handler determines via C<lonnet>'s C<&allowed> function that a certain
58: action is not allowed, C<lonroles> is used as error handler. This
59: allows the user to select another role which may have permission to do
60: what they were trying to do.
61:
62: =begin latex
63:
64: \begin{figure}
65: \begin{center}
66: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
67: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
68: \end{center}
69: \end{figure}
70:
71: =end latex
72:
73: =head2 Role Initialization
74:
75: The privileges for a user are established at login time and stored in the session environment. As a consequence, a new role does not become active till the next login. Handlers are able to query for privileges using C<lonnet>'s C<&allowed> function. When a user first logs in, their role is the "common" role, which means that they have the sum of all of their privileges. During a session it might become necessary to choose a particular role, which as a consequence also limits the user to only the privileges in that particular role.
76:
77: =head1 INTRODUCTION
78:
79: This module enables a user to select what role he wishes to
80: operate under (instructor, student, teaching assistant, course
81: coordinator, etc). These roles are pre-established by the actions
82: of upper-level users.
83:
84: This is part of the LearningOnline Network with CAPA project
85: described at http://www.lon-capa.org.
86:
87: =head1 HANDLER SUBROUTINE
88:
89: This routine is called by Apache and mod_perl.
90:
91: =over 4
92:
93: =item *
94:
95: Roles Initialization (yes/no)
96:
97: =item *
98:
99: Get Error Message from Environment
100:
101: =item *
102:
103: Who is this?
104:
105: =item *
106:
107: Generate Page Output
108:
109: =item *
110:
111: Choice or no choice
112:
113: =item *
114:
115: Table
116:
117: =item *
118:
119: Privileges
120:
121: =back
122:
123: =cut
124:
125:
126: package Apache::lonroles;
127:
128: use strict;
129: use Apache::lonnet;
130: use Apache::lonuserstate();
131: use Apache::Constants qw(:common REDIRECT);
132: use Apache::File();
133: use Apache::lonmenu;
134: use Apache::loncommon;
135: use Apache::lonhtmlcommon;
136: use Apache::lonannounce;
137: use Apache::lonlocal;
138: use Apache::lonpageflip();
139: use Apache::lonnavdisplay();
140: use Apache::loncoursequeueadmin;
141: use Apache::longroup;
142: use Apache::lonrss;
143: use Apache::lonplacementtest;
144: use GDBM_File;
145: use LONCAPA qw(:DEFAULT :match);
146: use HTML::Entities;
147:
148:
149: sub redirect_user {
150: my ($r,$title,$url,$msg) = @_;
151: $msg = $title if (! defined($msg));
152: &Apache::loncommon::content_type($r,'text/html');
153: &Apache::loncommon::no_cache($r);
154: $r->send_http_header;
155:
156: # Breadcrumbs
157: my $brcrum = [{'href' => $url,
158: 'text' => 'Switching Role'},];
159: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
160: {'redirect' => [1,$url],
161: 'bread_crumbs' => $brcrum,});
162: my $end_page = &Apache::loncommon::end_page();
163:
164: # Note to style police:
165: # This must only replace the spaces, nothing else, or it bombs elsewhere.
166: $url=~s/ /\%20/g;
167: $r->print(<<ENDREDIR);
168: $start_page
169: <p>$msg</p>
170: $end_page
171: ENDREDIR
172: return;
173: }
174:
175: sub error_page {
176: my ($r,$error,$dest)=@_;
177: &Apache::loncommon::content_type($r,'text/html');
178: &Apache::loncommon::no_cache($r);
179: $r->send_http_header;
180: return OK if $r->header_only;
181: # Breadcrumbs
182: my $brcrum = [{'href' => $dest,
183: 'text' => 'Problems during Course Initialization'},];
184: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization',
185: undef,
186: {'bread_crumbs' => $brcrum,})
187: );
188: $r->print(
189: '<script type="text/javascript">'.
190: '// <![CDATA['.
191: &Apache::lonmenu::rawconfig().
192: '// ]]>'.
193: '</script>'.
194: '<p class="LC_error">'.&mt('The following problems occurred:').
195: '<br />'.
196: $error.
197: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'
198: );
199: $r->print(&Apache::loncommon::end_page());
200: }
201:
202: sub handler {
203:
204: my $r = shift;
205:
206: # Check for critical messages and redirect if present.
207: my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
208: if ($redirect) {
209: &Apache::loncommon::content_type($r,'text/html');
210: $r->header_out(Location => $url);
211: return REDIRECT;
212: }
213:
214: my $now=time;
215: my $then=$env{'user.login.time'};
216: my $refresh=$env{'user.refresh.time'};
217: my $update=$env{'user.update.time'};
218: if (!$refresh) {
219: $refresh = $then;
220: }
221: if (!$update) {
222: $update = $then;
223: }
224:
225: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
226:
227: # -------------------------------------------------- Check if setting hot list
228: my $hotlist;
229: if ($env{'form.action'} eq 'verify_and_change_rolespref') {
230: $hotlist = &Apache::lonpreferences::verify_and_change_rolespref($r);
231: }
232:
233: # -------------------------------------------------------- Check for new roles
234: my $updateresult;
235: if ($env{'form.state'} eq 'doupdate') {
236: my $show_course=&Apache::loncommon::show_course();
237: my $checkingtxt;
238: if ($show_course) {
239: $checkingtxt = &mt('Checking for new courses ...');
240: } else {
241: $checkingtxt = &mt('Checking for new roles ...');
242: }
243: $updateresult = $checkingtxt;
244: $updateresult .= &update_session_roles();
245: &Apache::lonnet::appenv({'user.update.time' => $now});
246: $update = $now;
247: &Apache::loncoursequeueadmin::reqauthor_check();
248: }
249:
250: # -------------------------------------------------- Check for author requests
251: my $reqauthor;
252: if ($env{'form.state'} eq 'requestauthor') {
253: $reqauthor = &Apache::loncoursequeueadmin::process_reqauthor(\$update);
254: }
255:
256: my $envkey;
257: my %dcroles = ();
258: my %helpdeskroles = ();
259: my ($numdc,$numhelpdesk,$numadhoc) =
260: &check_for_adhoc(\%dcroles,\%helpdeskroles,$update,$then);
261: my $loncaparev = $r->dir_config('lonVersion');
262:
263: # ================================================================== Roles Init
264: if ($env{'form.selectrole'}) {
265:
266: my $locknum=&Apache::lonnet::get_locks();
267: if ($locknum) { return 409; }
268:
269: my $custom_adhoc;
270: if ($env{'form.newrole'}) {
271: $env{'form.'.$env{'form.newrole'}}=1;
272: # Check if this is a Domain Helpdesk or Domain Helpdesk Assistant role trying to enter a course
273: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/\w+\./\1/$match_courseid$}) {
274: if ($helpdeskroles{$1}) {
275: $custom_adhoc = 1;
276: }
277: }
278: }
279: if ($env{'request.course.id'}) {
280: # Check if user is CC trying to select a course role
281: if ($env{'form.switchrole'}) {
282: my $switch_is_active;
283: if (defined($env{'user.role.'.$env{'form.switchrole'}})) {
284: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
285: if (!$end || $end > $now) {
286: if (!$start || $start < $update) {
287: $switch_is_active = 1;
288: }
289: }
290: }
291: unless ($switch_is_active) {
292: &adhoc_course_role($refresh,$update,$then);
293: }
294: }
295: my %temp=('logout_'.$env{'request.course.id'} => time);
296: &Apache::lonnet::put('email_status',\%temp);
297: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
298: }
299: &Apache::lonnet::appenv({"request.course.id" => '',
300: "request.course.fn" => '',
301: "request.course.uri" => '',
302: "request.course.sec" => '',
303: "request.course.tied" => '',
304: "request.course.timechecked" => '',
305: "request.role" => 'cm',
306: "request.role.adv" => $env{'user.adv'},
307: "request.role.domain" => $env{'user.domain'}});
308: # Check if Domain Helpdesk role trying to enter a course needs privs to be created
309: if ($env{'form.newrole'} =~ m{^cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)}) {
310: my $cdom = $1;
311: my $rolename = $2;
312: my $cnum = $3;
313: my $sec = $4;
314: if ($custom_adhoc) {
315: my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($cdom.'_'.$cnum,1);
316: if (ref($possroles) eq 'ARRAY') {
317: if (grep(/^\Q$rolename\E$/,@{$possroles})) {
318: if (&Apache::lonnet::check_adhoc_privs($cdom,$cnum,$update,$refresh,$now,
319: "cr/$cdom/$cdom".'-domainconfig/'.$rolename,undef,$sec)) {
320: &Apache::lonnet::appenv({"environment.internal.$cdom.$cnum.cr/$cdom/$cdom".'-domainconfig/'."$rolename.adhoc" => time});
321: }
322: }
323: }
324: }
325: } elsif (($numdc > 0) || ($numhelpdesk > 0)) {
326: # Check if user is a DC trying to enter a course or author space and needs privs to be created
327: # Check if user is a DH or DA trying to enter a course and needs privs to be created
328: foreach my $envkey (keys(%env)) {
329: # Is this an ad-hoc Coordinator role?
330: if ($numdc) {
331: if (my ($ccrole,$domain,$coursenum) =
332: ($envkey =~ m-^form\.(cc|co)\./($match_domain)/($match_courseid)$-)) {
333: if ($dcroles{$domain}) {
334: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,
335: $update,$refresh,$now,$ccrole)) {
336: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.$ccrole.adhoc" => time});
337: }
338: }
339: last;
340: }
341: # Is this an ad-hoc CA-role?
342: if (my ($domain,$user) =
343: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
344: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
345: delete($env{$envkey});
346: $env{'form.au./'.$domain.'/'} = 1;
347: my ($server_status,$home) = &check_author_homeserver($user,$domain);
348: if ($server_status eq 'switchserver') {
349: my $trolecode = 'au./'.$domain.'/';
350: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
351: $r->internal_redirect($switchserver);
352: return OK;
353: }
354: last;
355: }
356: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
357: if (((($castart) && ($castart < $now)) || !$castart) &&
358: ((!$caend) || (($caend) && ($caend > $now)))) {
359: my ($server_status,$home) = &check_author_homeserver($user,$domain);
360: if ($server_status eq 'switchserver') {
361: my $trolecode = 'ca./'.$domain.'/'.$user;
362: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
363: $r->internal_redirect($switchserver);
364: return OK;
365: }
366: last;
367: }
368: }
369: # Check if author blocked ca-access
370: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
371: if ($blocked{'domcoord.author'} eq 'blocked') {
372: delete($env{$envkey});
373: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
374: last;
375: }
376: if ($dcroles{$domain}) {
377: my ($server_status,$home) = &check_author_homeserver($user,$domain);
378: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
379: &Apache::lonnet::check_adhoc_privs($domain,$user,$update,
380: $refresh,$now,'ca');
381: if ($server_status eq 'switchserver') {
382: my $trolecode = 'ca./'.$domain.'/'.$user;
383: my $switchserver = '/adm/switchserver?'
384: .'otherserver='.$home.'&role='.$trolecode;
385: $r->internal_redirect($switchserver);
386: return OK;
387: }
388: } else {
389: delete($env{$envkey});
390: }
391: } else {
392: delete($env{$envkey});
393: }
394: last;
395: }
396: }
397: if ($numhelpdesk) {
398: # Is this an ad hoc custom role in a course/community?
399: if (my ($domain,$rolename,$coursenum,$sec) = ($envkey =~ m{^form\.cr/($match_domain)/\1\-domainconfig/(\w+)\./\1/($match_courseid)(?:/(\w+)|$)})) {
400: if ($helpdeskroles{$domain}) {
401: my ($possroles,$description) = &Apache::lonnet::get_my_adhocroles($domain.'_'.$coursenum,1);
402: if (ref($possroles) eq 'ARRAY') {
403: if (grep(/^\Q$rolename\E$/,@{$possroles})) {
404: if (&Apache::lonnet::check_adhoc_privs($domain,$coursenum,$update,$refresh,$now,
405: "cr/$domain/$domain".'-domainconfig/'.$rolename,
406: undef,$sec)) {
407: &Apache::lonnet::appenv({"environment.internal.$domain.$coursenum.cr/$domain/$domain".
408: '-domainconfig/'."$rolename.adhoc" => time});
409: }
410: } else {
411: delete($env{$envkey});
412: }
413: } else {
414: delete($env{$envkey});
415: }
416: } else {
417: delete($env{$envkey});
418: }
419: last;
420: }
421: }
422: }
423: }
424: foreach $envkey (keys(%env)) {
425: next if ($envkey!~/^user\.role\./);
426: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
427: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
428: \$trolecode,\$tstatus,\$tstart,\$tend);
429: if ($env{'form.'.$trolecode}) {
430: if ($tstatus eq 'is') {
431: $where=~s/^\///;
432: my ($cdom,$cnum,$csec)=split(/\//,$where);
433: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
434: my $home = $env{'course.'.$cdom.'_'.$cnum.'.home'};
435: my @ids = &Apache::lonnet::current_machine_ids();
436: unless ($loncaparev eq '' && $home && grep(/^\Q$home\E$/,@ids)) {
437: my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
438: if ($curr_reqd_hash{'internal.releaserequired'} ne '') {
439: my ($switchserver,$switchwarning) =
440: &Apache::loncommon::check_release_required($loncaparev,$cdom.'_'.$cnum,$trolecode,
441: $curr_reqd_hash{'internal.releaserequired'});
442: if ($switchwarning ne '' || $switchserver ne '') {
443: &Apache::loncommon::content_type($r,'text/html');
444: &Apache::loncommon::no_cache($r);
445: $r->send_http_header;
446: $r->print(&Apache::loncommon::check_release_result($switchwarning,$switchserver));
447: return OK;
448: }
449: }
450: }
451: }
452: # check for course groups
453: my %coursegroups = &Apache::lonnet::get_active_groups(
454: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
455: my $cgrps = join(':',keys(%coursegroups));
456:
457: # store role if recent_role list being kept
458: if ($env{'environment.recentroles'}) {
459: my %frozen_roles =
460: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
461: &Apache::lonhtmlcommon::store_recent('roles',
462: $trolecode,' ',$frozen_roles{$trolecode});
463: }
464:
465:
466: # check for keyed access
467: if (($role eq 'st') &&
468: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
469: # who is key authority?
470: my $authdom=$cdom;
471: my $authnum=$cnum;
472: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
473: ($authnum,$authdom)=
474: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
475: }
476: # check with key authority
477: unless (&Apache::lonnet::validate_access_key(
478: $env{'environment.key.'.$cdom.'_'.$cnum},
479: $authdom,$authnum)) {
480: # there is no valid key
481: if ($env{'form.newkey'}) {
482: # student attempts to register a new key
483: &Apache::loncommon::content_type($r,'text/html');
484: &Apache::loncommon::no_cache($r);
485: $r->send_http_header;
486: my $swinfo=&Apache::lonmenu::rawconfig();
487: my $start_page=&Apache::loncommon::start_page
488: ('Verifying Access Key to Unlock this Course');
489: my $end_page=&Apache::loncommon::end_page();
490: my $buttontext=&mt('Enter Course');
491: my $message=&mt('Successfully registered key');
492: my $assignresult=
493: &Apache::lonnet::assign_access_key(
494: $env{'form.newkey'},
495: $authdom,$authnum,
496: $cdom,$cnum,
497: $env{'user.domain'},
498: $env{'user.name'},
499: &mt('Assigned from [_1] at [_2] for [_3]'
500: ,$ENV{'REMOTE_ADDR'}
501: ,&Apache::lonlocal::locallocaltime()
502: ,$trolecode)
503: );
504: unless ($assignresult eq 'ok') {
505: $assignresult=~s/^error\:\s*//;
506: $message=&mt($assignresult).
507: '<br /><a href="/adm/logout">'.
508: &mt('Logout').'</a>';
509: $buttontext=&mt('Re-Enter Key');
510: }
511: $r->print(<<ENDENTEREDKEY);
512: $start_page
513: <script type="text/javascript">
514: // <![CDATA[
515: $swinfo
516: // ]]>
517: </script>
518: <form action="" method="post">
519: <input type="hidden" name="selectrole" value="1" />
520: <input type="hidden" name="$trolecode" value="1" />
521: <span class="LC_fontsize_large">$message</span><br />
522: <input type="submit" value="$buttontext" />
523: </form>
524: $end_page
525: ENDENTEREDKEY
526: return OK;
527: } else {
528: # print form to enter a new key
529: &Apache::loncommon::content_type($r,'text/html');
530: &Apache::loncommon::no_cache($r);
531: $r->send_http_header;
532: my $swinfo=&Apache::lonmenu::rawconfig();
533: my $start_page=&Apache::loncommon::start_page
534: ('Enter Access Key to Unlock this Course');
535: my $end_page=&Apache::loncommon::end_page();
536: $r->print(<<ENDENTERKEY);
537: $start_page
538: <script type="text/javascript">
539: // <![CDATA[
540: $swinfo
541: // ]]>
542: </script>
543: <form action="" method="post">
544: <input type="hidden" name="selectrole" value="1" />
545: <input type="hidden" name="$trolecode" value="1" />
546: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
547: <input type="submit" value="Enter key" />
548: </form>
549: $end_page
550: ENDENTERKEY
551: return OK;
552: }
553: }
554: }
555: &Apache::lonnet::log($env{'user.domain'},
556: $env{'user.name'},
557: $env{'user.home'},
558: "Role ".$trolecode);
559:
560: &Apache::lonnet::appenv(
561: {'request.role' => $trolecode,
562: 'request.role.domain' => $cdom,
563: 'request.course.sec' => $csec,
564: 'request.course.groups' => $cgrps});
565: my $tadv=0;
566:
567: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
568: if ($role =~ m{^\Qcr/$cdom/$cdom\E\-domainconfig/(\w+)$}) {
569: my $rolename = $1;
570: my %domdef = &Apache::lonnet::get_domain_defaults($cdom);
571: if (ref($domdef{'adhocroles'}) eq 'HASH') {
572: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
573: &Apache::lonnet::appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'}});
574: }
575: }
576: }
577: my $msg;
578: my ($furl,$ferr)=
579: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
580: unless ($ferr) {
581: unless (($env{'form.switchrole'}) ||
582: ($env{"environment.internal.$cdom.$cnum.$role.adhoc"})) {
583: &Apache::lonnet::put('nohist_crslastlogin',
584: {$env{'user.name'}.':'.$env{'user.domain'}.
585: ':'.$csec.':'.$role => $now},$cdom,$cnum);
586: }
587: my ($feeds,$syllabus_time);
588: &Apache::lonrss::advertisefeeds($cnum,$cdom,undef,\$feeds);
589: &Apache::lonnet::appenv({'request.course.feeds' => $feeds});
590: &Apache::lonnet::get_numsuppfiles($cnum,$cdom,1);
591: unless ($env{'course.'.$cdom.'_'.$cnum.'.updatedsyllabus'}) {
592: unless (($env{'course.'.$cdom.'_'.$cnum.'.externalsyllabus'}) ||
593: ($env{'course.'.$cdom.'_'.$cnum.'.uploadedsyllabus'})) {
594: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
595: $syllabus_time = $syllabus{'uploaded.lastmodified'};
596: if ($syllabus_time) {
597: &Apache::lonnet::appenv({'request.course.syllabustime' => $syllabus_time});
598: }
599: }
600: }
601: }
602: if (($env{'form.orgurl'}) &&
603: ($env{'form.orgurl'}!~/^\/adm\/flip/) &&
604: ($env{'form.orgurl'} ne '/adm/roles')) {
605: my $dest=$env{'form.orgurl'};
606: if ($env{'form.symb'}) {
607: if ($dest =~ /\?/) {
608: $dest .= '&';
609: } else {
610: $dest .= '?';
611: }
612: $dest .= 'symb='.$env{'form.symb'};
613: }
614: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
615: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
616: if (($ferr) && ($tadv)) {
617: &error_page($r,$ferr,$dest);
618: } else {
619: if ($dest =~ m{^/adm/coursedocs\?folderpath}) {
620: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
621: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
622: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
623: $cdom.'_'.$cnum);
624: }
625: }
626: $r->internal_redirect($dest);
627: }
628: return OK;
629: } else {
630: if (!$env{'request.course.id'}) {
631: &Apache::lonnet::appenv(
632: {"request.course.id" => $cdom.'_'.$cnum});
633: $furl='/adm/roles?tryagain=1';
634: $msg='<p><span class="LC_error">'
635: .&mt('Could not initialize [_1] at this time.',
636: $env{'course.'.$cdom.'_'.$cnum.'.description'})
637: .'</span></p>'
638: .'<p>'.&mt('Please try again.').'</p>'
639: .'<p>'.$ferr.'</p>';
640: }
641: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
642: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
643:
644: if (($ferr) && ($tadv)) {
645: &error_page($r,$ferr,$furl);
646: } else {
647: # Check to see if the user is a CC entering a course
648: # for the first time
649: if ((($role eq 'cc') || ($role eq 'co'))
650: && ($env{'course.'.$cdom.'_'.$cnum.'.course.helper.not.run'})) {
651: $furl = "/adm/helper/course.initialization.helper";
652: # Send the user to the course they selected
653: } elsif ($env{'request.course.id'}) {
654: if ((&Apache::loncommon::course_type() eq 'Placement') &&
655: (!$env{'request.role.adv'})) {
656: my ($score,$incomplete) =
657: &Apache::lonplacementtest::check_completion(undef,undef,1);
658: if (($incomplete) && ($incomplete < 100)) {
659: &redirect_user($r, &mt('Entering [_1]',
660: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
661: '/adm/placement', $msg);
662: return OK;
663: }
664: }
665: my ($dest,$destsymb,$checkenc);
666: $dest = $env{'form.destinationurl'};
667: $destsymb = $env{'form.destsymb'};
668: if ($dest ne '') {
669: if ($env{'form.switchrole'}) {
670: if ($destsymb ne '') {
671: if ($destsymb !~ m{^/enc/}) {
672: unless ($env{'request.role.adv'}) {
673: $checkenc = 1;
674: }
675: }
676: }
677: if (($dest =~ m{^\Q/public/$cdom/$cnum/syllabus\E.*(\?|\&)usehttp=1}) ||
678: ($dest =~ m{^\Q/adm/wrapper/ext/\E(?!https:)})) {
679: if ($ENV{'SERVER_PORT'} == 443) {
680: my $hostname = $r->hostname();
681: if ($hostname ne '') {
682: $dest = 'http://'.$hostname.$dest;
683: }
684: }
685: }
686: if ($dest =~ m{^/enc/}) {
687: if ($env{'request.role.adv'}) {
688: $dest = &Apache::lonenc::unencrypted($dest);
689: if ($destsymb eq '') {
690: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
691: $destsymb = &unescape($destsymb);
692: }
693: }
694: } else {
695: if ($destsymb eq '') {
696: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
697: $destsymb = &unescape($destsymb);
698: }
699: unless ($env{'request.role.adv'}) {
700: $checkenc = 1;
701: }
702: }
703: if (($checkenc) && ($destsymb ne '')) {
704: my ($encstate,$unencsymb,$res);
705: $unencsymb = &Apache::lonnet::symbclean($destsymb);
706: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
707: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
708: if ($encstate) {
709: if (($dest ne '') && ($dest !~ m{^/enc/})) {
710: $dest=&Apache::lonenc::encrypted($dest);
711: }
712: }
713: }
714: }
715: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
716: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
717: my $esc_symb = &escape($destsymb);
718: $dest .= (($dest =~/\?/)? '&':'?').'symb='.$esc_symb;
719: }
720: }
721: &redirect_user($r, &mt('Entering [_1]',
722: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
723: $dest, $msg);
724: return OK;
725: }
726: if (&Apache::lonnet::allowed('whn',
727: $env{'request.course.id'})
728: || &Apache::lonnet::allowed('whn',
729: $env{'request.course.id'}.'/'
730: .$env{'request.course.sec'})
731: ) {
732: my $startpage = &courseloadpage($env{'request.course.id'});
733: unless ($startpage eq 'firstres') {
734: $msg = &mt('Entering [_1] ...',
735: $env{'course.'.$env{'request.course.id'}.'.description'});
736: &redirect_user($r, &mt('New in course'),
737: '/adm/whatsnew?refpage=start', $msg);
738: return OK;
739: }
740: }
741: }
742: # Are we allowed to look at the first resource?
743: my $access;
744: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
745: # If it's an external resource,
746: # strip off the symb argument and possible query
747: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
748: # Unencode $symb
749: $symb = &unescape($symb);
750: # Then check for permission
751: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
752: # For other resources just check for permission
753: } else {
754: $access = &Apache::lonnet::allowed('bre',$furl);
755: }
756: if (!$access) {
757: $furl = &Apache::lonpageflip::first_accessible_resource();
758: } elsif ($access eq 'B') {
759: $furl = '/adm/navmaps?showOnlyHomework=1';
760: }
761: $msg = &mt('Entering [_1] ...',
762: $env{'course.'.$cdom.'_'.$cnum.'.description'});
763: &redirect_user($r, &mt('Entering [_1]',
764: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
765: $furl, $msg);
766: }
767: return OK;
768: }
769: }
770: #
771: # Send the user to the construction space they selected
772: if ($role =~ /^(au|ca|aa)$/) {
773: my $redirect_url = '/priv/';
774: if ($role eq 'au') {
775: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
776: } else {
777: $redirect_url .= $where;
778: }
779: $redirect_url .= '/';
780: &redirect_user($r,&mt('Entering Authoring Space'),
781: $redirect_url);
782: return OK;
783: }
784: if ($role eq 'dc') {
785: my $redirect_url = '/adm/menu/';
786: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
787: $redirect_url);
788: return OK;
789: }
790: if ($role eq 'dh') {
791: my $redirect_url = '/adm/menu/';
792: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
793: $redirect_url);
794: return OK;
795: }
796: if ($role eq 'da') {
797: my $redirect_url = '/adm/menu/';
798: &redirect_user($r,&mt('Loading Domain Helpdesk Assistant Menu'),
799: $redirect_url);
800: return OK;
801: }
802: if ($role eq 'sc') {
803: my $redirect_url = '/adm/grades?command=scantronupload';
804: &redirect_user($r,&mt('Loading Data Upload Page'),
805: $redirect_url);
806: return OK;
807: }
808: }
809: }
810: }
811: }
812:
813:
814: # =============================================================== No Roles Init
815:
816: &Apache::loncommon::content_type($r,'text/html');
817: &Apache::loncommon::no_cache($r);
818: $r->send_http_header;
819: return OK if $r->header_only;
820:
821: my $crumbtext = 'User Roles';
822: my $pagetitle = 'My Roles';
823: my $recent = &mt('Recent Roles');
824: my $standby = &mt('Role selected. Please stand by.');
825: my $show_course=&Apache::loncommon::show_course();
826: if ($show_course) {
827: $crumbtext = 'Courses';
828: $pagetitle = 'My Courses';
829: $recent = &mt('Recent Courses');
830: $standby = &mt('Course selected. Please stand by.');
831: }
832: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
833:
834: my %roles_in_env;
835: my $showcount = &roles_from_env(\%roles_in_env,$update);
836:
837: my $swinfo=&Apache::lonmenu::rawconfig();
838: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
839: my $cattype = 'std';
840: if ($domdefs{'catauth'}) {
841: $cattype = $domdefs{'catauth'};
842: }
843: my $placementonly;
844: if ($showcount == 1) {
845: if ($env{'request.course.id'}) {
846: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
847: $placementonly = 1;
848: }
849: } else {
850: foreach my $rolecode (keys(%roles_in_env)) {
851: my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
852: if ($cid) {
853: my %coursedescription =
854: &Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
855: if ($coursedescription{'type'} eq 'Placement') {
856: $placementonly = 1;
857: }
858: last;
859: }
860: }
861: }
862: }
863: my ($start_page,$funcs);
864: if ($placementonly) {
865: $start_page=&Apache::loncommon::start_page($pagetitle,undef,
866: {bread_crumbs=>$brcrum,crstype=>'Placement'});
867: } else {
868: $funcs = &get_roles_functions($showcount,$cattype);
869: my $crumbsright;
870: if ($env{'browser.mobile'}) {
871: $crumbsright = $funcs;
872: undef($funcs);
873: }
874: $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
875: bread_crumbs_component=>$crumbsright});
876: }
877: &js_escape(\$standby);
878: 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 />';
879:
880: $r->print(<<ENDHEADER);
881: $start_page
882: $funcs
883: <noscript>
884: $noscript
885: </noscript>
886: <script type="text/javascript">
887: // <![CDATA[
888: $swinfo
889: window.focus();
890:
891: active=true;
892:
893: function enterrole (thisform,rolecode,buttonname) {
894: if (active) {
895: active=false;
896: document.title='$standby';
897: window.status='$standby';
898: thisform.newrole.value=rolecode;
899: thisform.submit();
900: } else {
901: alert('$standby');
902: }
903: }
904:
905: function rolesView (caller) {
906: if ((caller == 'showall') || (caller == 'noshowall')) {
907: document.rolechoice.display.value = caller;
908: } else {
909: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
910: (caller == 'queued')) {
911: document.rolechoice.state.value = caller;
912: }
913: }
914: document.rolechoice.selectrole.value='';
915: document.rolechoice.submit();
916: }
917:
918: // ]]>
919: </script>
920: ENDHEADER
921:
922: # ------------------------------------------ Get Error Message from Environment
923:
924: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
925: if ($env{'user.error.msg'}) {
926: $r->log_reason(
927: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
928: }
929:
930: # ------------------------------------------------- Can this user re-init, etc?
931:
932: my $advanced=$env{'user.adv'};
933: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
934: my $tryagain=$env{'form.tryagain'};
935: my $reinit=$env{'user.reinit'};
936: delete $env{'user.reinit'};
937:
938: # -------------------------------------------------------- Generate Page Output
939: # --------------------------------------------------------------- Error Header?
940: if ($error) {
941: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
942: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
943: if ($priv ne '') {
944: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
945: }
946: if ($fn ne '') {
947: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
948: }
949: if ($msg ne '') {
950: $r->print(&mt('Action : ').$msg."\n");
951: }
952: $r->print("</pre><hr />");
953: my $url=$fn;
954: my $last;
955: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
956: &GDBM_READER(),0640)) {
957: $last=$hash{'last_known'};
958: untie(%hash);
959: }
960: if ($last) { $fn.='?symb='.&escape($last); }
961:
962: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
963: &Apache::lonenc::check_encrypt($fn));
964: } else {
965: if ($env{'user.error.msg'}) {
966: if ($reinit) {
967: $r->print(
968: '<h3><span class="LC_error">'.
969: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
970: } else {
971: $r->print(
972: '<h3><span class="LC_error">'.
973: &mt('You need to choose another user role or enter a specific course or community for this function.').
974: '</span></h3>');
975: }
976: }
977: }
978: if ($nochoose) {
979: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
980: &mt('This action is currently not authorized.').'</span>'.
981: &Apache::loncommon::end_page());
982: return OK;
983: } else {
984: if ($updateresult || $reqauthor || $hotlist) {
985: my $showresult = '<div>';
986: if ($updateresult) {
987: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
988: }
989: if ($reqauthor) {
990: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
991: }
992: if ($hotlist) {
993: $showresult .= $hotlist;
994: }
995: $showresult .= '</div>';
996: $r->print($showresult);
997: } elsif ($env{'form.state'} eq 'queued') {
998: $r->print(&get_queued());
999: }
1000: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
1001: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1002: }
1003: my $display = ($env{'form.display'} =~ /^(showall)$/);
1004: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1005: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
1006: $r->print('<input type="hidden" name="selectrole" value="1" />');
1007: $r->print('<input type="hidden" name="newrole" value="" />');
1008: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
1009: $r->print('<input type="hidden" name="state" value="" />');
1010: }
1011: $r->rflush();
1012:
1013: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
1014: my ($countactive,$countfuture,$inrole,$possiblerole) =
1015: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
1016: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
1017: $refresh = $now;
1018: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
1019: if ($countactive == 1) {
1020: if ($env{'request.course.id'}) {
1021: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
1022: $placementonly = 1;
1023: }
1024: } elsif ($possiblerole) {
1025: if ($possiblerole =~ m{^st\./($match_domain)/($match_courseid)(?:/|$)}) {
1026: if ($env{'course.'.$1.'_'.$2.'.type'} eq 'Placement') {
1027: $placementonly = 1;
1028: }
1029: }
1030: }
1031: }
1032: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'}) &&
1033: (!$placementonly)) {
1034: if ($countactive > 0) {
1035: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1036: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1037: $r->print(
1038: '<p>'
1039: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
1040: .' to view all [_5] LON-CAPA courses and communities.'
1041: ,'<b>'
1042: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1043: ,'</a>'
1044: ,'</b>'
1045: ,'"'.$domdesc.'"')
1046: .'<br />'
1047: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
1048: .' you may be able to enroll if self-enrollment is permitted.'
1049: ,'<b>','</b>')
1050: .'</p>'
1051: );
1052: }
1053: }
1054:
1055: # No active roles
1056: if ($countactive==0) {
1057: &requestcourse_advice($r,$cattype,$inrole);
1058: $r->print('</form>');
1059: if ($countfuture) {
1060: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1061: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1062: $nochoose);
1063: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1064: \%roletext,$update,$then);
1065: my $tremark='';
1066: my $tbg;
1067: if ($env{'request.role'} eq 'cm') {
1068: $tbg="LC_roles_selected";
1069: $tremark=&mt('Currently selected.').' ';
1070: } else {
1071: $tbg="LC_roles_is";
1072: }
1073: $r->print(&Apache::loncommon::start_data_table_row()
1074: .'<td class="'.$tbg.'"> </td>'
1075: .'<td colspan="3">'
1076: .&mt('No role specified')
1077: .'</td>'
1078: .'<td>'.$tremark.' </td>'
1079: .&Apache::loncommon::end_data_table_row()
1080: );
1081:
1082: $r->print(&Apache::loncommon::end_data_table());
1083: }
1084: $r->print(&Apache::loncommon::end_page());
1085: return OK;
1086: } elsif (($placementonly) && ($env{'request.role'} eq 'cm')) {
1087: $r->print('<h3>'.&mt('Please stand by.').'</h3>
1088: <input type="hidden" name="'.$possiblerole.'" value="1" />
1089: <noscript><br />
1090: <input type="submit" name="submit" value="'.&mt('Continue').'" />
1091: </noscript></form>');
1092: $r->rflush();
1093: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
1094: $r->print(&Apache::loncommon::end_page());
1095: return OK;
1096: }
1097: # ----------------------------------------------------------------------- Table
1098:
1099: if (($numdc > 0) || (($numhelpdesk > 0) && ($numadhoc > 0))) {
1100: $r->print(&coursepick_jscript());
1101: $r->print(&Apache::loncommon::coursebrowser_javascript().
1102: &Apache::loncommon::authorbrowser_javascript());
1103: }
1104:
1105: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1106: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1107: }
1108: if ($env{'form.destinationurl'}) {
1109: $r->print('<input type="hidden" name="destinationurl" value="'.
1110: $env{'form.destinationurl'}.'" />');
1111: if ($env{'form.destsymb'} ne '') {
1112: $r->print('<input type="hidden" name="destsymb" value="'.
1113: $env{'form.destsymb'}.'" />');
1114: }
1115: }
1116:
1117: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1118: if ($env{'environment.recentroles'}) {
1119: my %recent_roles =
1120: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1121: my $output='';
1122: foreach my $role (sort(keys(%recent_roles))) {
1123: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1124: $output.= &Apache::loncommon::start_data_table_row().
1125: $roletext{'user.role.'.$role}->[0].
1126: &Apache::loncommon::end_data_table_row();
1127: if ($roletext{'user.role.'.$role}->[1] ne '') {
1128: $output .= &Apache::loncommon::continue_data_table_row().
1129: $roletext{'user.role.'.$role}->[1].
1130: &Apache::loncommon::end_data_table_row();
1131: }
1132: if ($role =~ m{^dc\./($match_domain)/$}
1133: && $dcroles{$1}) {
1134: $output .= &adhoc_roles_row($1,'recent');
1135: } elsif ($role =~ m{^(dh|da)\./($match_domain)/$}) {
1136: $output .= &adhoc_customroles_row($1,$2,'recent',$update,$then);
1137: }
1138: } elsif ($numdc > 0) {
1139: unless ($role =~/^error\:/) {
1140: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1141: if ($roletext) {
1142: $output.= &Apache::loncommon::start_data_table_row().
1143: $roletext.
1144: &Apache::loncommon::end_data_table_row();
1145: if ($role_text_end) {
1146: $output .= &Apache::loncommon::continue_data_table_row().
1147: $role_text_end.
1148: &Apache::loncommon::end_data_table_row();
1149: }
1150: }
1151: }
1152: }
1153: }
1154: if ($output) {
1155: $r->print(&Apache::loncommon::start_data_table_empty_row()
1156: .'<td align="center" colspan="5">'
1157: .$recent
1158: .'</td>'
1159: .&Apache::loncommon::end_data_table_empty_row()
1160: );
1161: $r->print($output);
1162: $doheaders ++;
1163: }
1164: }
1165: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext,$update,$then);
1166: if ($countactive > 1) {
1167: my $tremark='';
1168: my $tbg;
1169: if ($env{'request.role'} eq 'cm') {
1170: $tbg="LC_roles_selected";
1171: $tremark=&mt('Currently selected.').' ';
1172: } else {
1173: $tbg="LC_roles_is";
1174: }
1175: $r->print(&Apache::loncommon::start_data_table_row());
1176: unless ($nochoose) {
1177: if ($env{'request.role'} ne 'cm') {
1178: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1179: &mt('Select').'" name="cm" /></td>');
1180: } else {
1181: $r->print('<td class="'.$tbg.'"> </td>');
1182: }
1183: }
1184: $r->print('<td colspan="3">'
1185: .&mt('No role specified')
1186: .'</td>'
1187: .'<td>'.$tremark.' </td>'
1188: .&Apache::loncommon::end_data_table_row()
1189: );
1190: }
1191: $r->print(&Apache::loncommon::end_data_table());
1192: unless ($nochoose) {
1193: $r->print("</form>\n");
1194: }
1195: # ------------------------------------------------------------ Privileges Info
1196: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1197: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1198: $r->print(&privileges_info());
1199: }
1200: my $announcements = &Apache::lonnet::getannounce();
1201: $r->print(
1202: '<br />'.
1203: '<h2>'.&mt('Announcements').'</h2>'.
1204: $announcements
1205: ) unless (!$announcements);
1206: if ($advanced) {
1207: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1208: $r->print('<p><small><i>'
1209: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1210: .'</i></small></p>');
1211: }
1212: $r->print(&Apache::loncommon::end_page());
1213: return OK;
1214: }
1215:
1216: sub roles_from_env {
1217: my ($roleshash,$update) = @_;
1218: my $count = 0;
1219: if (ref($roleshash) eq 'HASH') {
1220: foreach my $envkey (keys(%env)) {
1221: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1222: next if ($1 eq 'gr');
1223: $roleshash->{$envkey} = $env{$envkey};
1224: my ($start,$end) = split(/\./,$env{$envkey});
1225: unless ($end && $end<$update) {
1226: $count ++;
1227: }
1228: }
1229: }
1230: }
1231: return $count;
1232: }
1233:
1234: sub gather_roles {
1235: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1236: $timezones,$loncaparev) = @_;
1237: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1238: my $advanced = $env{'user.adv'};
1239: my $tryagain = $env{'form.tryagain'};
1240: my @ids = &Apache::lonnet::current_machine_ids();
1241: if (ref($roles_in_env) eq 'HASH') {
1242: my %adhocdesc;
1243: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1244: my $button = 1;
1245: my $switchserver='';
1246: my $switchwarning;
1247: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1248: $tend,$tremark,$tstatus,$tpstart,$tpend);
1249: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1250: \$trolecode,\$tstatus,\$tstart,\$tend);
1251: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1252: $tremark='';
1253: $tpstart=' ';
1254: $tpend=' ';
1255: if ($env{'request.role'} eq $trolecode) {
1256: $tstatus='selected';
1257: }
1258: my $tbg;
1259: if (($tstatus eq 'is')
1260: || ($tstatus eq 'selected')
1261: || ($tstatus eq 'future')
1262: || ($env{'form.display'} eq 'showall')) {
1263: my $timezone = &role_timezone($where,$timezones);
1264: if ($tstart) {
1265: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1266: }
1267: if ($tend) {
1268: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1269: }
1270: if ($tstatus eq 'is') {
1271: $tbg='LC_roles_is';
1272: $possiblerole=$trolecode;
1273: $countactive++;
1274: } elsif ($tstatus eq 'future') {
1275: $tbg='LC_roles_future';
1276: $button=0;
1277: $futureroles->{$trolecode} = $tstart.':'.$tend;
1278: $countfuture ++;
1279: } elsif ($tstatus eq 'expired') {
1280: $tbg='LC_roles_expired';
1281: $button=0;
1282: } elsif ($tstatus eq 'will_not') {
1283: $tbg='LC_roles_will_not';
1284: $tremark.=&mt('Expired after logout.').' ';
1285: } elsif ($tstatus eq 'selected') {
1286: $tbg='LC_roles_selected';
1287: $inrole=1;
1288: $countactive++;
1289: $tremark.=&mt('Currently selected.').' ';
1290: }
1291: my $trole;
1292: if ($role =~ /^cr\//) {
1293: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1294: unless ($rauthor eq $rdomain.'-domainconfig') {
1295: if ($tremark) { $tremark.='<br />'; }
1296: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1297: }
1298: }
1299: $trole=Apache::lonnet::plaintext($role);
1300: my $ttype;
1301: my $twhere;
1302: my $skipcal;
1303: my ($tdom,$trest,$tsection)=
1304: split(/\//,Apache::lonnet::declutter($where));
1305: # First, Co-Authorship roles
1306: if (($role eq 'ca') || ($role eq 'aa')) {
1307: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1308: my $allowed=0;
1309: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1310: if (!$allowed) {
1311: $button=0;
1312: $switchserver='otherserver='.$home.'&role='.$trolecode;
1313: }
1314: #next if ($home eq 'no_host');
1315: $home = &Apache::lonnet::hostname($home);
1316: $ttype='Authoring Space';
1317: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1318: ': '.$tdom.'<br />'.
1319: ' '.&mt('Server').': '.$home;
1320: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1321: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1322: $sortkey=$role."$trest:$tdom";
1323: } elsif ($role eq 'au') {
1324: # Authors
1325: my $home = &Apache::lonnet::homeserver
1326: ($env{'user.name'},$env{'user.domain'});
1327: my $allowed=0;
1328: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1329: if (!$allowed) {
1330: $button=0;
1331: $switchserver='otherserver='.$home.'&role='.$trolecode;
1332: }
1333: #next if ($home eq 'no_host');
1334: $home = &Apache::lonnet::hostname($home);
1335: $ttype='Authoring Space';
1336: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1337: ': '.$home;
1338: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1339: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1340: $sortkey=$role;
1341: } elsif ($trest) {
1342: my $tcourseid=$tdom.'_'.$trest;
1343: $ttype = &Apache::loncommon::course_type($tcourseid);
1344: if ($role !~ /^cr/) {
1345: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1346: } elsif ($role =~ m{^\Qcr/$tdom/$tdom\E\-domainconfig/(\w+)$}) {
1347: my $rolename = $1;
1348: my $desc;
1349: if (ref($adhocdesc{$tdom}) eq 'HASH') {
1350: $desc = $adhocdesc{$tdom}{$rolename};
1351: } else {
1352: my %domdef = &Apache::lonnet::get_domain_defaults($tdom);
1353: if (ref($domdef{'adhocroles'}) eq 'HASH') {
1354: foreach my $rolename (sort(keys(%{$domdef{'adhocroles'}}))) {
1355: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
1356: $adhocdesc{$tdom}{$rolename} = $domdef{'adhocroles'}{$rolename}{'desc'};
1357: $desc = $adhocdesc{$tdom}{$rolename};
1358: }
1359: }
1360: }
1361: }
1362: if ($desc ne '') {
1363: $trole = $desc;
1364: } else {
1365: $trole = &mt('Helpdesk[_1]',' '.$rolename);
1366: }
1367: } else {
1368: $trole = (split(/\//,$role,4))[-1];
1369: }
1370: if ($env{'course.'.$tcourseid.'.description'}) {
1371: my $home=$env{'course.'.$tcourseid.'.home'};
1372: $twhere=$env{'course.'.$tcourseid.'.description'};
1373: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1374: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1375: unless ($twhere eq &mt('Currently not available')) {
1376: $twhere.=' <span class="LC_fontsize_small">'.
1377: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1378: '</span>';
1379: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1380: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1381: if ($required ne '') {
1382: ($switchserver,$switchwarning) =
1383: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1384: if ($switchserver || $switchwarning) {
1385: $button = 0;
1386: }
1387: }
1388: }
1389: }
1390: } else {
1391: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1392: if (%newhash) {
1393: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1394: "\0".$envkey;
1395: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1396: ' <span class="LC_fontsize_small">'.
1397: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1398: '</span>';
1399: $ttype = $newhash{'type'};
1400: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1401: my $home = $newhash{'home'};
1402: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1403: my $required = $newhash{'internal.releaserequired'};
1404: if ($required ne '') {
1405: ($switchserver,$switchwarning) =
1406: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1407: if ($switchserver || $switchwarning) {
1408: $button = 0;
1409: }
1410: }
1411: }
1412: } else {
1413: $twhere=&mt('Currently not available');
1414: $env{'course.'.$tcourseid.'.description'}=$twhere;
1415: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1416: $ttype = 'Unavailable';
1417: $skipcal = 1;
1418: }
1419: }
1420: if ($ttype eq 'Placement') {
1421: $ttype = 'Placement Test';
1422: }
1423: if ($tsection) {
1424: $twhere.='<br />'.&mt('Section').': '.$tsection;
1425: }
1426: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1427: } elsif ($tdom) {
1428: $ttype='Domain';
1429: $twhere=$tdom;
1430: $sortkey=$role.$twhere;
1431: } else {
1432: $ttype='System';
1433: $twhere=&mt('system wide');
1434: $sortkey=$role.$twhere;
1435: }
1436: ($role_text,$role_text_end) =
1437: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1438: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1439: $tpend,$nochoose,$button,$switchserver,$reinit,
1440: $switchwarning,$skipcal);
1441: $roletext->{$envkey}=[$role_text,$role_text_end];
1442: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1443: $sortrole->{$sortkey}=$envkey;
1444: $roleclass->{$envkey}=$ttype;
1445: }
1446: }
1447: }
1448: return ($countactive,$countfuture,$inrole,$possiblerole);
1449: }
1450:
1451: sub role_timezone {
1452: my ($where,$timezones) = @_;
1453: my $timezone;
1454: if (ref($timezones) eq 'HASH') {
1455: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1456: my $cdom = $1;
1457: my $cnum = $2;
1458: if ($cdom && $cnum) {
1459: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1460: my $tz;
1461: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1462: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1463: } else {
1464: my %timehash =
1465: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1466: $tz = $timehash{'timezone'};
1467: }
1468: if ($tz eq '') {
1469: if (!exists($timezones->{$cdom})) {
1470: my %domdefaults =
1471: &Apache::lonnet::get_domain_defaults($cdom);
1472: if ($domdefaults{'timezone_def'} eq '') {
1473: $timezones->{$cdom} = 'local';
1474: } else {
1475: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1476: }
1477: }
1478: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1479: } else {
1480: $timezones->{$cdom.'_'.$cnum} =
1481: &Apache::lonlocal::gettimezone($tz);
1482: }
1483: }
1484: $timezone = $timezones->{$cdom.'_'.$cnum};
1485: }
1486: } else {
1487: my ($tdom) = ($where =~ m{^/($match_domain)});
1488: if ($tdom) {
1489: if (!exists($timezones->{$tdom})) {
1490: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1491: if ($domdefaults{'timezone_def'} eq '') {
1492: $timezones->{$tdom} = 'local';
1493: } else {
1494: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1495: }
1496: }
1497: $timezone = $timezones->{$tdom};
1498: }
1499: }
1500: if ($timezone eq 'local') {
1501: $timezone = undef;
1502: }
1503: }
1504: return $timezone;
1505: }
1506:
1507: sub roletable_headers {
1508: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1509: my $doheaders;
1510: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1511: $r->print('<br />'
1512: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1513: .&Apache::loncommon::start_data_table_header_row()
1514: );
1515: if (!$nochoose) { $r->print('<th> </th>'); }
1516: $r->print('<th>'.&mt('User Role').'</th>'
1517: .'<th>'.&mt('Extent').'</th>'
1518: .'<th>'.&mt('Start').'</th>'
1519: .'<th>'.&mt('End').'</th>'
1520: .&Apache::loncommon::end_data_table_header_row()
1521: );
1522: $doheaders=-1;
1523: my @roletypes = &roletypes();
1524: foreach my $type (@roletypes) {
1525: my $haverole=0;
1526: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1527: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1528: $haverole=1;
1529: }
1530: }
1531: if ($haverole) { $doheaders++; }
1532: }
1533: }
1534: return $doheaders;
1535: }
1536:
1537: sub roletypes {
1538: my @types = ('Domain','Authoring Space','Course','Placement Test','Community','Unavailable','System');
1539: return @types;
1540: }
1541:
1542: sub print_rolerows {
1543: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext,$update,$then) = @_;
1544: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1545: my @types = &roletypes();
1546: foreach my $type (@types) {
1547: my $output;
1548: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1549: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1550: if (ref($roletext) eq 'HASH') {
1551: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1552: $output.= &Apache::loncommon::start_data_table_row().
1553: $roletext->{$sortrole->{$which}}->[0].
1554: &Apache::loncommon::end_data_table_row();
1555: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1556: $output .= &Apache::loncommon::continue_data_table_row().
1557: $roletext->{$sortrole->{$which}}->[1].
1558: &Apache::loncommon::end_data_table_row();
1559: }
1560: }
1561: if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
1562: if (ref($dcroles) eq 'HASH') {
1563: if ($dcroles->{$1}) {
1564: $output .= &adhoc_roles_row($1,'');
1565: }
1566: }
1567: } elsif ($sortrole->{$which} =~ m{^user\.role\.(dh|da)\./($match_domain)/}) {
1568: $output .= &adhoc_customroles_row($1,$2,'',$update,$then);
1569: }
1570: }
1571: }
1572: }
1573: if ($output) {
1574: if ($doheaders > 0) {
1575: $r->print(&Apache::loncommon::start_data_table_empty_row()
1576: .'<td align="center" colspan="5">'
1577: .&mt($type)
1578: .'</td>'
1579: .&Apache::loncommon::end_data_table_empty_row()
1580: );
1581: }
1582: $r->print($output);
1583: }
1584: }
1585: }
1586: }
1587:
1588: sub findcourse_advice {
1589: my ($r,$cattype) = @_;
1590: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1591: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1592: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1593: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1594: <ul>
1595: <li>'.&mt('The course has yet to be created.').'</li>
1596: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1597: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1598: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1599: <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>
1600: </ul>');
1601: } else {
1602: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1603: }
1604: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1605: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1606: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1607: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1608: &Apache::loncoursequeueadmin::queued_selfenrollment());
1609: }
1610: return;
1611: }
1612:
1613: sub requestcourse_advice {
1614: my ($r,$cattype,$inrole) = @_;
1615: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1616: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1617: my (%can_request,%request_doms,$output);
1618: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1619: if (keys(%request_doms) > 0) {
1620: my ($types,$typename) = &Apache::loncommon::course_types();
1621: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1622: my (@reqdoms,@reqtypes);
1623: foreach my $type (sort(keys(%request_doms))) {
1624: push(@reqtypes,$type);
1625: if (ref($request_doms{$type}) eq 'ARRAY') {
1626: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1627: $output .=
1628: '<li>'
1629: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1630: '<i>',
1631: '</i>',
1632: '<b>'.$domstr.'</b>')
1633: .'</li>';
1634: foreach my $dom (@{$request_doms{$type}}) {
1635: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1636: push(@reqdoms,$dom);
1637: }
1638: }
1639: }
1640: }
1641: my @showtypes;
1642: foreach my $type (@{$types}) {
1643: if (grep(/^\Q$type\E$/,@reqtypes)) {
1644: push(@showtypes,$type);
1645: }
1646: }
1647: my $requrl = '/adm/requestcourse';
1648: if (@reqdoms == 1) {
1649: $requrl .= '?showdom='.$reqdoms[0];
1650: }
1651: if (@showtypes > 0) {
1652: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1653: }
1654: if (@reqdoms == 1 || @showtypes > 0) {
1655: $requrl .= '&state=crstype&action=new';
1656: }
1657: if ($output) {
1658: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1659: '<p>'.
1660: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1661: '<ul>'.
1662: $output.
1663: '</ul>'.
1664: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1665: '<a href="'.$requrl.'">','</a>').
1666: '</p>');
1667: }
1668: }
1669: } elsif (!$env{'user.adv'}) {
1670: if ($inrole) {
1671: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1672: } else {
1673: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1674: }
1675: &findcourse_advice($r,$cattype);
1676: }
1677: return;
1678: }
1679:
1680: sub privileges_info {
1681: my ($which) = @_;
1682: my $output;
1683:
1684: $which ||= $env{'request.role'};
1685:
1686: foreach my $envkey (sort(keys(%env))) {
1687: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1688:
1689: my $where=$1;
1690: my $ttype;
1691: my $twhere;
1692: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1693: if ($trest) {
1694: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1695: $ttype='Authoring Space';
1696: $twhere='User: '.$trest.', Domain: '.$tdom;
1697: } else {
1698: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1699: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1700: if ($tsec) {
1701: my $sec_type = 'Section';
1702: if (exists($env{"user.role.gr.$where"})) {
1703: $sec_type = 'Group';
1704: }
1705: $twhere.=' ('.$sec_type.': '.$tsec.')';
1706: }
1707: }
1708: } elsif ($tdom) {
1709: $ttype='Domain';
1710: $twhere=$tdom;
1711: } else {
1712: $ttype='System';
1713: $twhere='/';
1714: }
1715: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1716: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1717: next if (!$priv);
1718:
1719: my ($prv,$restr)=split(/\&/,$priv);
1720: my $trestr='';
1721: if ($restr ne 'F') {
1722: $trestr.=' ('.
1723: join(', ',
1724: map { &Apache::lonnet::plaintext($_) }
1725: (split('',$restr))).') ';
1726: }
1727: $output .= "\n\t".
1728: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1729: }
1730: $output .= "\n".'</ul>';
1731: }
1732: return $output;
1733: }
1734:
1735: sub build_roletext {
1736: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
1737: $tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning,$skipcal) = @_;
1738: my ($roletext,$roletext_end);
1739: my $is_dc=($trolecode =~ m/^dc\./);
1740: my $rowspan=($is_dc) ? ''
1741: : ' rowspan="2" ';
1742:
1743: unless ($nochoose) {
1744: my $buttonname=$trolecode;
1745: $buttonname=~s/\W//g;
1746: if (!$button) {
1747: if ($switchserver) {
1748: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1749: .'<a href="/adm/switchserver?'.$switchserver.'">'
1750: .&mt('Switch Server')
1751: .'</a></td>';
1752: } else {
1753: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1754: }
1755: if ($switchwarning) {
1756: if ($tremark eq '') {
1757: $tremark = $switchwarning;
1758: } else {
1759: $tremark .= '<br />'.$switchwarning;
1760: }
1761: }
1762: } elsif ($tstatus eq 'is') {
1763: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1764: '<input name="'.$buttonname.'" type="button" value="'.
1765: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1766: $trolecode."','".$buttonname.'\');" /></td>';
1767: } elsif ($tryagain) {
1768: $roletext.=
1769: '<td'.$rowspan.' class="'.$tbg.'">'.
1770: '<input name="'.$buttonname.'" type="button" value="'.
1771: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1772: $trolecode."','".$buttonname.'\');" /></td>';
1773: } elsif ($advanced) {
1774: $roletext.=
1775: '<td'.$rowspan.' class="'.$tbg.'">'.
1776: '<input name="'.$buttonname.'" type="button" value="'.
1777: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1778: $trolecode."','".$buttonname.'\');" /></td>';
1779: } elsif ($reinit) {
1780: $roletext.=
1781: '<td'.$rowspan.' class="'.$tbg.'">'.
1782: '<input name="'.$buttonname.'" type="button" value="'.
1783: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1784: $trolecode."','".$buttonname.'\');" /></td>';
1785: } else {
1786: $roletext.=
1787: '<td'.$rowspan.' class="'.$tbg.'">'.
1788: '<input name="'.$buttonname.'" type="button" value="'.
1789: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1790: $trolecode."','".$buttonname.'\');" /></td>';
1791: }
1792: }
1793: if (($trolecode !~ m/^(dc|ca|au|aa)\./) && (!$skipcal)) {
1794: $tremark.=&Apache::lonannounce::showday(time,1,
1795: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1796: }
1797: $roletext.='<td>'.$trole.'</td>'
1798: .'<td>'.$twhere.'</td>'
1799: .'<td>'.$tpstart.'</td>'
1800: .'<td>'.$tpend.'</td>';
1801: if (!$is_dc) {
1802: $roletext_end = '<td colspan="4">'.
1803: $tremark.' '.
1804: '</td>';
1805: }
1806: return ($roletext,$roletext_end);
1807: }
1808:
1809: sub check_author_homeserver {
1810: my ($uname,$udom)=@_;
1811: if (($uname eq '') || ($udom eq '')) {
1812: return ('fail','');
1813: }
1814: my $home = &Apache::lonnet::homeserver($uname,$udom);
1815: if (&Apache::lonnet::host_domain($home) ne $udom) {
1816: return ('fail',$home);
1817: }
1818: my @ids=&Apache::lonnet::current_machine_ids();
1819: if (grep(/^\Q$home\E$/,@ids)) {
1820: return ('ok',$home);
1821: } else {
1822: return ('switchserver',$home);
1823: }
1824: }
1825:
1826: sub check_for_adhoc {
1827: my ($dcroles,$helpdeskroles,$update,$then) = @_;
1828: my $numdc = 0;
1829: my $numhelpdesk = 0;
1830: my $numadhoc = 0;
1831: my $num_custom_adhoc = 0;
1832: if ($env{'user.adv'}) {
1833: foreach my $envkey (sort(keys(%env))) {
1834: if ($envkey=~/^user\.role\.(dc|dh|da)\.\/($match_domain)\/$/) {
1835: my $role = $1;
1836: my $roledom = $2;
1837: my $liverole = 1;
1838: my ($tstart,$tend)=split(/\./,$env{$envkey});
1839: my $limit = $update;
1840: if ($env{'request.role'} eq "$role./$roledom/") {
1841: $limit = $then;
1842: }
1843: if ($tstart && $tstart>$limit) { $liverole = 0; }
1844: if ($tend && $tend <$limit) { $liverole = 0; }
1845: if ($liverole) {
1846: if ($role eq 'dc') {
1847: $dcroles->{$roledom} = $envkey;
1848: $numdc++;
1849: } else {
1850: $helpdeskroles->{$roledom} = $envkey;
1851: my %domdefaults = &Apache::lonnet::get_domain_defaults($roledom);
1852: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
1853: if (keys(%{$domdefaults{'adhocroles'}})) {
1854: $numadhoc ++;
1855: }
1856: }
1857: $numhelpdesk++;
1858: }
1859: }
1860: }
1861: }
1862: }
1863: return ($numdc,$numhelpdesk,$numadhoc);
1864: }
1865:
1866: sub adhoc_course_role {
1867: my ($refresh,$update,$then) = @_;
1868: my ($cdom,$cnum,$crstype);
1869: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1870: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1871: $crstype = &Apache::loncommon::course_type();
1872: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1873: my $setprivs;
1874: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1875: $setprivs = 1;
1876: } else {
1877: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1878: if (($start && ($start>$refresh || $start == -1)) ||
1879: ($end && $end<$update)) {
1880: $setprivs = 1;
1881: }
1882: }
1883: unless ($setprivs) {
1884: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1885: $setprivs = 1;
1886: }
1887: }
1888: if ($setprivs) {
1889: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1890: my $role = $1;
1891: my $custom_role = $2;
1892: my $usec = $3;
1893: if ($role eq 'cr') {
1894: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1895: $role .= $custom_role;
1896: } else {
1897: return;
1898: }
1899: }
1900: my (%userroles,%newrole,%newgroups,%group_privs);
1901: my %cgroups =
1902: &Apache::lonnet::get_active_groups($env{'user.domain'},
1903: $env{'user.name'},$cdom,$cnum);
1904: my $ccrole;
1905: if ($crstype eq 'Community') {
1906: $ccrole = 'co';
1907: } else {
1908: $ccrole = 'cc';
1909: }
1910: foreach my $group (keys(%cgroups)) {
1911: $group_privs{$group} =
1912: $env{'user.priv.'.$ccrole.'./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1913: }
1914: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1915: my $area = '/'.$cdom.'/'.$cnum;
1916: my $spec = $role.'.'.$area;
1917: if ($usec ne '') {
1918: $spec .= '/'.$usec;
1919: $area .= '/'.$usec;
1920: }
1921: if ($role =~ /^cr/) {
1922: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1923: } else {
1924: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1925: }
1926: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1927: my $adhocstart = $refresh-1;
1928: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1929: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1930: }
1931: }
1932: }
1933: return;
1934: }
1935:
1936: sub check_forcc {
1937: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1938: my ($is_cc,$ccrole);
1939: if ($crstype eq 'Community') {
1940: $ccrole = 'co';
1941: } else {
1942: $ccrole = 'cc';
1943: }
1944: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1945: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1946: if (defined($env{$envkey})) {
1947: $is_cc = 1;
1948: my ($tstart,$tend)=split(/\./,$env{$envkey});
1949: my $limit = $update;
1950: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1951: $limit = $then;
1952: }
1953: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1954: if ($tend && $tend <$limit) { $is_cc = 0; }
1955: }
1956: }
1957: return $is_cc;
1958: }
1959:
1960: sub courselink {
1961: my ($roledom,$rowtype,$role) = @_;
1962: my $courseform=&Apache::loncommon::selectcourse_link
1963: ('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
1964: 'domain'.$rowtype.'_'.$roledom.'_'.$role,
1965: 'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
1966: $roledom.':'.$role,undef,'Course/Community');
1967: my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1968: '<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1969: '<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
1970: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
1971: return $courseform.$hiddenitems;
1972: }
1973:
1974: sub coursepick_jscript {
1975: my %js_lt = &Apache::lonlocal::texthash(
1976: 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.",
1977: youc => 'You can only use this screen to select courses and communities in the current domain.',
1978: );
1979: &js_escape(\%js_lt);
1980: my $verify_script = <<"END";
1981: <script type="text/javascript">
1982: // <![CDATA[
1983: function verifyCoursePick(caller) {
1984: var numbutton = getIndex(caller)
1985: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1986: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1987: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1988: if (pickedCourse != '') {
1989: if (numbutton != -1) {
1990: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1991: document.rolechoice.elements[numbutton+1].name = courseTarget
1992: document.rolechoice.submit()
1993: }
1994: }
1995: else {
1996: alert("$js_lt{'plsu'}");
1997: }
1998: }
1999: else {
2000: alert("$js_lt{'youc'}")
2001: }
2002: }
2003: function getIndex(caller) {
2004: for (var i=0;i<document.rolechoice.elements.length;i++) {
2005: if (document.rolechoice.elements[i] == caller) {
2006: return i;
2007: }
2008: }
2009: return -1;
2010: }
2011: // ]]>
2012: </script>
2013: END
2014: return $verify_script;
2015: }
2016:
2017: sub coauthorlink {
2018: my ($dcdom,$rowtype) = @_;
2019: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
2020: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
2021: return $coauthorform.$hiddenitems;
2022: }
2023:
2024: sub display_cc_role {
2025: my $rolekey = shift;
2026: my ($roletext,$roletext_end);
2027: my $advanced = $env{'user.adv'};
2028: my $tryagain = $env{'form.tryagain'};
2029: unless ($rolekey =~/^error\:/) {
2030: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
2031: my $ccrole = $1;
2032: my $tdom = $2;
2033: my $trest = $3;
2034: my $tcourseid = $tdom.'_'.$trest;
2035: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
2036: my $twhere;
2037: my $ttype;
2038: my $skipcal;
2039: my $tbg='LC_roles_is';
2040: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2041: if (%newhash) {
2042: $twhere=$newhash{'description'}.
2043: ' <span class="LC_fontsize_small">'.
2044: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
2045: '</span>';
2046: $ttype = $newhash{'type'};
2047: } else {
2048: $twhere=&mt('Currently not available');
2049: $env{'course.'.$tcourseid.'.description'}=$twhere;
2050: $skipcal = 1;
2051: }
2052: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
2053: $twhere.="<br />".&mt('Domain').":".$tdom;
2054: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'','','',$skipcal);
2055: }
2056: }
2057: return ($roletext,$roletext_end);
2058: }
2059:
2060: sub adhoc_roles_row {
2061: my ($dcdom,$rowtype) = @_;
2062: my $output = &Apache::loncommon::continue_data_table_row()
2063: .' <td colspan="5" class="LC_textsize_mobile">'
2064: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
2065: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
2066: .' ';
2067: my $role = 'cc';
2068: my $selectcclink = &courselink($dcdom,$rowtype,$role);
2069: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
2070: my $carole = &Apache::lonnet::plaintext('ca');
2071: my $selectcalink = &coauthorlink($dcdom,$rowtype);
2072: $output.=$ccrole.': '.$selectcclink
2073: .' | '.$carole.': '.$selectcalink.'</td>'
2074: .&Apache::loncommon::end_data_table_row();
2075: return $output;
2076: }
2077:
2078: sub adhoc_customroles_row {
2079: my ($role,$dhdom,$rowtype,$update,$then) = @_;
2080: my $liverole = 1;
2081: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$dhdom/"});
2082: my $limit = $update;
2083: if (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$dhdom.'/')) {
2084: $limit = $then;
2085: }
2086: if ($tstart && $tstart>$limit) { $liverole = 0; }
2087: if ($tend && $tend <$limit) { $liverole = 0; }
2088: return unless ($liverole);
2089: my %domdefaults = &Apache::lonnet::get_domain_defaults($dhdom);
2090: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
2091: if (scalar(keys(%{$domdefaults{'adhocroles'}})) > 0) {
2092: return &Apache::loncommon::continue_data_table_row()
2093: .' <td colspan="5" class="LC_textsize_mobile">'
2094: .&mt('[_1]Ad hoc[_2] course/community roles in domain [_3] --',
2095: '<span class="LC_cusr_emph">','</span>',$dhdom)
2096: .' '.&courselink($dhdom,$rowtype,$role);
2097: }
2098: }
2099: return;
2100: }
2101:
2102: sub recent_filename {
2103: my $area=shift;
2104: return 'nohist_recent_'.&escape($area);
2105: }
2106:
2107: sub courseloadpage {
2108: my ($courseid) = @_;
2109: my $startpage;
2110: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
2111: [$courseid.':courseinit']);
2112: my ($tmp) = %entry_settings;
2113: unless ($tmp =~ /^error: 2 /) {
2114: $startpage = $entry_settings{$courseid.':courseinit'};
2115: }
2116: if ($startpage eq '') {
2117: if (exists($env{'environment.course_init_display'})) {
2118: $startpage = $env{'environment.course_init_display'};
2119: }
2120: }
2121: return $startpage;
2122: }
2123:
2124: sub update_session_roles {
2125: my $then=$env{'user.login.time'};
2126: my $refresh=$env{'user.refresh.time'};
2127: if (!$refresh) {
2128: $refresh = $then;
2129: }
2130: my $update = $env{'user.update.time'};
2131: if (!$update) {
2132: $update = $then;
2133: }
2134: my $now = time;
2135: my %roleshash =
2136: &Apache::lonnet::get_my_roles('','','userroles',
2137: ['active','future','previous'],
2138: undef,undef,1);
2139: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2140: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2141: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2142: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2143: @rolecodes);
2144: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2145: my %courseroles;
2146: foreach my $item (keys(%roleshash)) {
2147: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2148: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2149: my ($section,$group,@group_privs);
2150: if ($role =~ m{^gr/(\w*)$}) {
2151: $role = 'gr';
2152: my $priv = $1;
2153: next if ($tstart eq '-1');
2154: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2155: if ($priv ne '') {
2156: push(@group_privs,$priv);
2157: }
2158: }
2159: if ($remainder =~ /:/) {
2160: (my $additional_privs,$group) =
2161: ($remainder =~ /^([\w:]+):([^:]+)$/);
2162: if ($additional_privs ne '') {
2163: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2164: push(@group_privs,split(/:/,$additional_privs));
2165: @group_privs = sort(@group_privs);
2166: }
2167: }
2168: } else {
2169: $group = $remainder;
2170: }
2171: } else {
2172: $section = $remainder;
2173: }
2174: my $where = "/$udom/$uname";
2175: if ($section ne '') {
2176: $where .= "/$section";
2177: } elsif ($group ne '') {
2178: $where .= "/$group";
2179: }
2180: my $rolekey = "$role.$where";
2181: my $envkey = "user.role.$rolekey";
2182: $dbroles{$envkey} = 1;
2183: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2184: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2185: $currrole_expired = 1;
2186: }
2187: }
2188: if ($env{$envkey} eq '') {
2189: my $status_in_db =
2190: &curr_role_status($tstart,$tend,$now,$now);
2191: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2192: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2193: if ($status_in_db eq 'active') {
2194: if ($section eq '') {
2195: push(@newsec,'none');
2196: } else {
2197: push(@newsec,$section);
2198: }
2199: }
2200: } else {
2201: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2202: push(@changed_roles,$role);
2203: }
2204: if ($status_in_db ne 'previous') {
2205: if ($role eq 'gr') {
2206: $newgroup{$rolekey} = $status_in_db;
2207: if ($status_in_db eq 'active') {
2208: unless (ref($courseroles{$udom}) eq 'HASH') {
2209: %{$courseroles{$udom}} =
2210: &Apache::lonnet::get_my_roles('','','userroles',
2211: ['active'],\@possroles,
2212: [$udom],1);
2213: }
2214: &Apache::lonnet::get_groups_roles($udom,$uname,
2215: $courseroles{$udom},
2216: \@rolecodes,\%groups_roles);
2217: }
2218: } else {
2219: $newrole{$rolekey} = $status_in_db;
2220: }
2221: }
2222: }
2223: } else {
2224: my ($currstart,$currend) = split(/\./,$env{$envkey});
2225: if ($role eq 'gr') {
2226: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2227: $hasgroups = 1;
2228: }
2229: }
2230: if (($currstart ne $tstart) || ($currend ne $tend)) {
2231: my $status_in_env =
2232: &curr_role_status($currstart,$currend,$refresh,$update);
2233: my $status_in_db =
2234: &curr_role_status($tstart,$tend,$now,$now);
2235: if ($status_in_env ne $status_in_db) {
2236: if ($status_in_env eq 'active') {
2237: if ($role eq 'st') {
2238: if ($env{'request.role'} eq $rolekey) {
2239: my $switchsection;
2240: unless (ref($courseroles{$udom}) eq 'HASH') {
2241: %{$courseroles{$udom}} =
2242: &Apache::lonnet::get_my_roles('','','userroles',
2243: ['active'],
2244: \@possroles,[$udom],1);
2245: }
2246: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2247: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2248: $switchsection = 1;
2249: last;
2250: }
2251: }
2252: if ($switchsection) {
2253: if ($section eq '') {
2254: $oldsec = 'none';
2255: } else {
2256: $oldsec = $section;
2257: }
2258: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2259: } else {
2260: $currrole_expired = 1;
2261: next;
2262: }
2263: }
2264: }
2265: unless ($rolekey eq $env{'request.role'}) {
2266: if ($role eq 'gr') {
2267: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2268: } else {
2269: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2270: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2271: }
2272: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2273: }
2274: } elsif ($status_in_db eq 'active') {
2275: if (($role eq 'st') &&
2276: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2277: if ($section eq '') {
2278: push(@newsec,'none');
2279: } else {
2280: push(@newsec,$section);
2281: }
2282: } elsif ($role eq 'gr') {
2283: unless (ref($courseroles{$udom}) eq 'HASH') {
2284: %{$courseroles{$udom}} =
2285: &Apache::lonnet::get_my_roles('','','userroles',
2286: ['active'],
2287: \@possroles,[$udom],1);
2288: }
2289: &Apache::lonnet::get_groups_roles($udom,$uname,
2290: $courseroles{$udom},
2291: \@rolecodes,\%groups_roles);
2292: }
2293: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2294: }
2295: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2296: push(@changed_roles,$role);
2297: }
2298: if ($role eq 'gr') {
2299: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2300: } else {
2301: $rolechange{$rolekey} = $status_in_db;
2302: }
2303: }
2304: } else {
2305: if ($role eq 'gr') {
2306: unless ($checkedgroup{$where}) {
2307: my $status_in_db =
2308: &curr_role_status($tstart,$tend,$refresh,$now);
2309: if ($tstart eq '-1') {
2310: $status_in_db = 'deleted';
2311: }
2312: unless (ref($courseroles{$udom}) eq 'HASH') {
2313: %{$courseroles{$udom}} =
2314: &Apache::lonnet::get_my_roles('','','userroles',
2315: ['active'],
2316: \@possroles,[$udom],1);
2317: }
2318: if (ref($courseroles{$udom}) eq 'HASH') {
2319: foreach my $item (keys(%{$courseroles{$udom}})) {
2320: next unless ($item =~ /^\Q$uname\E/);
2321: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2322: my $area = '/'.$cdom.'/'.$cnum;
2323: if ($crssec ne '') {
2324: $area .= '/'.$crssec;
2325: }
2326: my $crsrolekey = $crsrole.'.'.$area;
2327: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2328: $currprivs =~ s/^://;
2329: $currprivs =~ s/\&F$//;
2330: my @curr_grp_privs = split(/\&F:/,$currprivs);
2331: @curr_grp_privs = sort(@curr_grp_privs);
2332: my @diffs;
2333: if (@group_privs > 0 || @curr_grp_privs > 0) {
2334: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2335: }
2336: if (@diffs == 0) {
2337: last;
2338: } else {
2339: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2340: push(@rolecodes,'gr');
2341: }
2342: &gather_roleprivs(\%allroles,\%allgroups,
2343: \%userroles,$where,$role,
2344: $tstart,$tend,$status_in_db);
2345: if ($status_in_db eq 'active') {
2346: &Apache::lonnet::get_groups_roles($udom,$uname,
2347: $courseroles{$udom},
2348: \@rolecodes,\%groups_roles);
2349: }
2350: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2351: last;
2352: }
2353: }
2354: }
2355: $checkedgroup{$where} = 1;
2356: }
2357: } elsif ($role =~ /^cr/) {
2358: my $status_in_db =
2359: &curr_role_status($tstart,$tend,$refresh,$now);
2360: my ($rdummy,$rest) = split(/\//,$role,2);
2361: my %currpriv;
2362: unless (exists($crprivs{$rest})) {
2363: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2364: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2365: if (&Apache::lonnet::hostname($homsvr) ne '') {
2366: my ($rdummy,$roledef)=
2367: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2368: $rdomain,$rauthor);
2369: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2370: my $i = 0;
2371: my @scopes = ('sys','dom','crs');
2372: my @privs = split(/\_/,$roledef);
2373: foreach my $priv (@privs) {
2374: my ($blank,@prv) = split(/:/,$priv);
2375: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2376: if (@prv) {
2377: $priv = ':'.join(':',sort(@prv));
2378: }
2379: $crprivs{$rest}{$scopes[$i]} = $priv;
2380: $i++;
2381: }
2382: }
2383: }
2384: }
2385: my $status_in_env =
2386: &curr_role_status($currstart,$currend,$refresh,$update);
2387: if ($status_in_env eq 'active') {
2388: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2389: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2390: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2391: if (keys(%crprivs)) {
2392: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2393: ($crprivs{$rest}{dom} ne $currpriv{dom})
2394: ||
2395: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2396: &gather_roleprivs(\%allroles,\%allgroups,
2397: \%userroles,$where,$role,
2398: $tstart,$tend,$status_in_db);
2399: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2400: push(@changed_roles,$role);
2401: }
2402: $customprivchg{$rolekey} = $status_in_env;
2403: }
2404: }
2405: }
2406: }
2407: }
2408: }
2409: }
2410: foreach my $envkey (keys(%env)) {
2411: next unless ($envkey =~ /^user\.role\./);
2412: next if ($dbroles{$envkey});
2413: next if ($envkey eq 'user.role.'.$env{'request.role'});
2414: my ($currstart,$currend) = split(/\./,$env{$envkey});
2415: my $status_in_env =
2416: &curr_role_status($currstart,$currend,$refresh,$update);
2417: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2418: my ($role,$rest)=split(m{\./},$rolekey,2);
2419: $rest = '/'.$rest;
2420: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2421: if ($status_in_env eq 'active') {
2422: if ($role eq 'gr') {
2423: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2424: \@possroles);
2425: } else {
2426: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2427: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2428: }
2429: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2430: push(@changed_roles,$role);
2431: }
2432: $deletedroles{$rolekey} = 1;
2433: }
2434: }
2435: }
2436: if (($oldsec) && (@newsec > 0)) {
2437: if (@newsec > 1) {
2438: $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>';
2439: } else {
2440: my $newrole = $env{'request.role'};
2441: if ($newsec[0] eq 'none') {
2442: $newrole =~ s{(/[^/])$}{};
2443: } elsif ($oldsec eq 'none') {
2444: $newrole .= '/'.$newsec[0];
2445: } else {
2446: $newrole =~ s{([^/]+)$}{$newsec[0]};
2447: }
2448: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2449: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2450: my %temp=('logout_'.$env{'request.course.id'} => time);
2451: &Apache::lonnet::put('email_status',\%temp);
2452: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2453: &Apache::lonnet::appenv({"request.course.id" => '',
2454: "request.course.fn" => '',
2455: "request.course.uri" => '',
2456: "request.course.sec" => '',
2457: "request.role" => 'cm',
2458: "request.role.adv" => $env{'user.adv'},
2459: "request.role.domain" => $env{'user.domain'}});
2460: my $rolename = &Apache::loncommon::plainname($curr_role);
2461: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2462: '<input type="hidden" name="newrole" value="" />'.
2463: '<input type="hidden" name="selectrole" value="1" />'.
2464: '<span class="LC_info">'.
2465: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2466: my $button = '<input type="button" name="sectionchanged" value="'.
2467: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2468: if ($newsec[0] eq 'none') {
2469: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2470: } else {
2471: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2472: }
2473: $msg .= '</form></p>';
2474: }
2475: } elsif ($currrole_expired) {
2476: $msg .= '<p class="LC_warning">';
2477: if (&Apache::loncommon::show_course()) {
2478: $msg .= &mt('Your role in the current course has expired.');
2479: } else {
2480: $msg .= &mt('Your current role has expired.');
2481: }
2482: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2483: }
2484: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2485: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2486: $curr_author = $env{'user.author'};
2487: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2488: ($env{'request.role'} =~/^aa/)) {
2489: $curr_role_author=1;
2490: }
2491: $curr_is_adv = $env{'user.adv'};
2492: $curr_role_adv = $env{'request.role.adv'};
2493: if (keys(%userroles) > 0) {
2494: foreach my $role (@changed_roles) {
2495: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2496: push(@rolecodes,$role);
2497: }
2498: }
2499: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2500: push(@rolecodes,'cm');
2501: }
2502: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2503: }
2504: my %newenv;
2505: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2506: unless ($curr_is_adv) {
2507: $newenv{'user.adv'} = 1;
2508: }
2509: } elsif ($curr_is_adv && !$curr_role_adv) {
2510: &Apache::lonnet::delenv('user.adv');
2511: }
2512: my %authorroleshash =
2513: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2514: if (keys(%authorroleshash)) {
2515: unless ($curr_author) {
2516: $newenv{'user.author'} = 1;
2517: }
2518: } elsif ($curr_author && !$curr_role_author) {
2519: &Apache::lonnet::delenv('user.author');
2520: }
2521: if ($env{'request.course.id'}) {
2522: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2523: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2524: my (@activecrsgroups,$crsgroupschanged);
2525: if ($env{'request.course.groups'}) {
2526: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2527: foreach my $item (keys(%deletedroles)) {
2528: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2529: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2530: $crsgroupschanged = 1;
2531: last;
2532: }
2533: }
2534: }
2535: }
2536: unless ($crsgroupschanged) {
2537: foreach my $item (keys(%newgroup)) {
2538: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2539: if ($newgroup{$item} eq 'active') {
2540: $crsgroupschanged = 1;
2541: last;
2542: }
2543: }
2544: }
2545: }
2546: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2547: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2548: ($crsgroupschanged)) {
2549: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2550: ['active'],['gr'],[$cdom],1);
2551: my @activegroups;
2552: foreach my $item (keys(%grouproles)) {
2553: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2554: my $group;
2555: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2556: if ($remainder =~ /:/) {
2557: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2558: } else {
2559: $group = $remainder;
2560: }
2561: if ($group ne '') {
2562: push(@activegroups,$group);
2563: }
2564: }
2565: $newenv{'request.course.groups'} = join(':',@activegroups);
2566: }
2567: }
2568: if (keys(%newenv)) {
2569: &Apache::lonnet::appenv(\%newenv);
2570: }
2571: if (!@changed_roles || !(keys(%changed_groups))) {
2572: my ($rolesmsg,$groupsmsg);
2573: if (!@changed_roles) {
2574: if (&Apache::loncommon::show_course()) {
2575: $rolesmsg = &mt('No new courses or communities');
2576: } else {
2577: $rolesmsg = &mt('No role changes');
2578: }
2579: }
2580: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2581: $groupsmsg = &mt('No changes in course/community groups');
2582: }
2583: if (!@changed_roles && !(keys(%changed_groups))) {
2584: if (($msg ne '') || ($groupsmsg ne '')) {
2585: $msg .= '<ul>';
2586: if ($rolesmsg) {
2587: $msg .= '<li>'.$rolesmsg.'</li>';
2588: }
2589: if ($groupsmsg) {
2590: $msg .= '<li>'.$groupsmsg.'</li>';
2591: }
2592: $msg .= '</ul>';
2593: } else {
2594: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2595: }
2596: return $msg;
2597: }
2598: }
2599: my $changemsg;
2600: if (@changed_roles > 0) {
2601: if (keys(%newgroup) > 0) {
2602: my $groupmsg;
2603: my (%curr_groups,%groupdescs,$currcrs);
2604: foreach my $item (sort(keys(%newgroup))) {
2605: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2606: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2607: my ($cdom,$cnum) = split(/\//,$1);
2608: my $group = $2;
2609: if ($currcrs ne $cdom.'_'.$cnum) {
2610: if ($currcrs) {
2611: $groupmsg .= '</ul><li>';
2612: }
2613: $groupmsg .= '<li><b>'.
2614: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2615: $currcrs = $cdom.'_'.$cnum;
2616: }
2617: my $groupdesc;
2618: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2619: %{$curr_groups{$cdom.'_'.$cnum}} =
2620: &Apache::longroup::coursegroups($cdom,$cnum);
2621: }
2622: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2623: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2624:
2625: my %groupinfo =
2626: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2627: $groupdescs{$cdom.'_'.$cnum}{$group} =
2628: &unescape($groupinfo{'description'});
2629: }
2630: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2631: if ($groupdesc) {
2632: $groupmsg .= '<li>'.
2633: &mt('[_1] with status: [_2].',
2634: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2635: }
2636: }
2637: }
2638: if ($groupmsg) {
2639: $groupmsg .= '</ul></li>';
2640: }
2641: }
2642: if ($groupmsg) {
2643: $changemsg .= '<li>'.
2644: &mt('Courses with new groups').'</li>'.
2645: '<ul>'.$groupmsg.'</ul></li>';
2646: }
2647: }
2648: if (keys(%newrole) > 0) {
2649: my $newmsg;
2650: foreach my $item (sort(keys(%newrole))) {
2651: my $desc = &role_desc($item,$update,$refresh,$now);
2652: if ($desc) {
2653: $newmsg .= '<li>'.
2654: &mt('[_1] with status: [_2].',
2655: $desc,&mt($newrole{$item})).'</li>';
2656: }
2657: }
2658: if ($newmsg) {
2659: $changemsg .= '<li>'.&mt('New roles').
2660: '<ul>'.$newmsg.'</ul>'.
2661: '</li>';
2662: }
2663: }
2664: if (keys(%customprivchg) > 0) {
2665: my $privmsg;
2666: foreach my $item (sort(keys(%customprivchg))) {
2667: my $desc = &role_desc($item,$update,$refresh,$now);
2668: if ($desc) {
2669: $privmsg .= '<li>'.$desc.'</li>';
2670: }
2671: }
2672: if ($privmsg) {
2673: $changemsg .= '<li>'.
2674: &mt('Custom roles with privilege changes').
2675: '<ul>'.$privmsg.'</ul>'.
2676: '</li>';
2677: }
2678: }
2679: if (keys(%rolechange) > 0) {
2680: my $rolemsg;
2681: foreach my $item (sort(keys(%rolechange))) {
2682: my $desc = &role_desc($item,$update,$refresh,$now);
2683: if ($desc) {
2684: $rolemsg .= '<li>'.
2685: &mt('[_1] status now: [_2].',$desc,
2686: $rolechange{$item}).'</li>';
2687: }
2688: }
2689: if ($rolemsg) {
2690: $changemsg .= '<li>'.
2691: &mt('Existing roles with status changes').'</li>'.
2692: '<ul>'.$rolemsg.'</ul>'.
2693: '</li>';
2694: }
2695: }
2696: if (keys(%deletedroles) > 0) {
2697: my $delmsg;
2698: foreach my $item (sort(keys(%deletedroles))) {
2699: my $desc = &role_desc($item,$update,$refresh,$now);
2700: if ($desc) {
2701: $delmsg .= '<li>'.$desc.'</li>';
2702: }
2703: }
2704: if ($delmsg) {
2705: $changemsg .= '<li>'.
2706: &mt('Existing roles now expired').'</li>'.
2707: '<ul>'.$delmsg.'</ul>'.
2708: '</li>';
2709: }
2710: }
2711: }
2712: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2713: my $groupchgmsg;
2714: foreach my $key (sort(keys(%changed_groups))) {
2715: my $crs = 'gr/'.$key;
2716: $crs =~ s/_/\//;
2717: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2718: if (ref($changed_groups{$key}) eq 'HASH') {
2719: my @showgroups;
2720: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2721: if ($changed_groups{$key}{$group} eq 'active') {
2722: push(@showgroups,$group);
2723: }
2724: }
2725: if (@showgroups > 0) {
2726: $groupchgmsg .= '<li>'.
2727: &mt('Course: [_1], groups: [_2].',$key,
2728: join(', ',@showgroups)).
2729: '</li>';
2730: }
2731: }
2732: }
2733: }
2734: if (keys(%groupchange) > 0) {
2735: $groupchgmsg .= '<li>'.
2736: &mt('Existing course/community groups with status changes').'</li>'.
2737: '<ul>';
2738: foreach my $crs (sort(keys(%groupchange))) {
2739: my $cid = $crs;
2740: $cid=~s{^/}{};
2741: $cid=~s{/}{_};
2742: my $crsdesc = $env{'course.'.$cid.'.description'};
2743: my $cdom = $env{'course.'.$cid.'.domain'};
2744: my $cnum = $env{'course.'.$cid.'.num'};
2745: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2746: my %groupdesc;
2747: if (ref($groupchange{$crs}) eq 'HASH') {
2748: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2749: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2750: unless ($groupdesc{$group}) {
2751: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2752: $groupdesc{$group} = &unescape($groupinfo{'description'});
2753: }
2754: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2755: }
2756: $groupchgmsg .= '</ul></li>';
2757: }
2758: }
2759: $groupchgmsg .= '</ul></li>';
2760: }
2761: if ($groupchgmsg) {
2762: $changemsg .= '<li>'.
2763: &mt('Courses with changes in groups').'</li>'.
2764: '<ul>'.$groupchgmsg.'</ul></li>';
2765: }
2766: }
2767: if ($changemsg) {
2768: $msg .= '<ul>'.$changemsg.'</ul>';
2769: } else {
2770: if (&Apache::loncommon::show_course()) {
2771: $msg = &mt('No new courses or communities');
2772: } else {
2773: $msg = &mt('No role changes');
2774: }
2775: }
2776: return $msg;
2777: }
2778:
2779: sub role_desc {
2780: my ($item,$update,$refresh,$now) = @_;
2781: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2782: $trole,$tremark);
2783: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2784: $now,\$role,\$where,\$trolecode,
2785: \$tstatus,\$tstart,\$tend);
2786: return unless ($role);
2787: if ($role =~ /^cr\//) {
2788: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2789: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2790: }
2791: $trole=Apache::lonnet::plaintext($role);
2792: my ($tdom,$trest,$tsection)=
2793: split(/\//,Apache::lonnet::declutter($where));
2794: if (($role eq 'ca') || ($role eq 'aa')) {
2795: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2796: $home = &Apache::lonnet::hostname($home);
2797: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2798: ': '.$tdom.' '.&mt('Server').': '.$home;
2799: } elsif ($role eq 'au') {
2800: my $home = &Apache::lonnet::homeserver
2801: ($env{'user.name'},$env{'user.domain'});
2802: $home = &Apache::lonnet::hostname($home);
2803: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2804: ': '.$home;
2805: } elsif ($trest) {
2806: my $tcourseid=$tdom.'_'.$trest;
2807: my $crstype = &Apache::loncommon::course_type($tcourseid);
2808: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2809: if ($env{'course.'.$tcourseid.'.description'}) {
2810: $twhere=$env{'course.'.$tcourseid.'.description'};
2811: } else {
2812: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2813: if (%newhash) {
2814: $twhere=$newhash{'description'};
2815: } else {
2816: $twhere=&mt('Currently not available');
2817: }
2818: }
2819: if ($tsection) {
2820: $twhere.= ' '.&mt('Section').': '.$tsection;
2821: }
2822: if ($role ne 'st') {
2823: $twhere.= ' '.&mt('Domain').': '.$tdom;
2824: }
2825: } elsif ($tdom) {
2826: $twhere = &mt('Domain').': '.$tdom;
2827: }
2828: my $output;
2829: if ($trole) {
2830: $output = $trole;
2831: if ($twhere) {
2832: $output .= " -- $twhere";
2833: }
2834: if ($tremark) {
2835: $output .= '<br />'.$tremark;
2836: }
2837: }
2838: return $output;
2839: }
2840:
2841: sub curr_role_status {
2842: my ($start,$end,$refresh,$update) = @_;
2843: if (($start) && ($start<0)) { return 'deleted' };
2844: my $status = 'active';
2845: if (($end) && ($end<=$update)) {
2846: $status = 'previous';
2847: }
2848: if (($start) && ($refresh<$start)) {
2849: $status = 'future';
2850: }
2851: return $status;
2852: }
2853:
2854: sub gather_roleprivs {
2855: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2856: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2857: if (($area ne '') && ($role ne '')) {
2858: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2859: $area,$tstart,$tend);
2860: my $spec=$role.'.'.$area;
2861: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2862: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2863: if ($status eq 'active') {
2864: if ($role =~ /^cr\//) {
2865: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2866: } elsif ($role eq 'gr') {
2867: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2868: $env{'user.domain'},
2869: $env{'user.name'});
2870: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2871: (undef,my $group_privs) = split(/\//,$trole);
2872: $group_privs = &unescape($group_privs);
2873: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2874: } else {
2875: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2876: }
2877: }
2878: }
2879: return;
2880: }
2881:
2882: sub is_active_course {
2883: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2884: return unless(ref($roleshashref) eq 'HASH');
2885: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2886: my $is_active;
2887: foreach my $key (keys(%{$roleshashref})) {
2888: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2889: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2890: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2891: if ($status eq 'active') {
2892: $is_active = 1;
2893: last;
2894: }
2895: }
2896: }
2897: return $is_active;
2898: }
2899:
2900: sub get_roles_functions {
2901: my ($rolescount,$cattype) = @_;
2902: my @links;
2903: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2904: if ($env{'environment.canrequest.author'}) {
2905: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2906: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2907: }
2908: }
2909: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2910: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2911: }
2912: if (&Apache::lonmenu::check_for_rcrs()) {
2913: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2914: }
2915: if ($env{'form.state'} eq 'queued') {
2916: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2917: } else {
2918: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2919: }
2920: if ($env{'user.adv'}) {
2921: if ($env{'form.display'} eq 'showall') {
2922: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2923: } else {
2924: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2925: }
2926: }
2927: unless ($cattype eq 'none') {
2928: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2929: }
2930: my $funcs;
2931: if ($env{'browser.mobile'}) {
2932: my @functions;
2933: foreach my $link (@links) {
2934: push(@functions,[$link->[0],$link->[2]]);
2935: }
2936: my $title = 'Display options';
2937: if ($env{'user.adv'}) {
2938: $title = 'Roles options';
2939: }
2940: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2941: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2942: } else {
2943: $funcs = &Apache::lonhtmlcommon::start_funclist();
2944: foreach my $link (@links) {
2945: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2946: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2947: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2948: $link->[2].'</a>');
2949: }
2950: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2951: $funcs = &Apache::loncommon::head_subbox($funcs);
2952: }
2953: return $funcs;
2954: }
2955:
2956: sub get_queued {
2957: my ($output,%reqcrs);
2958: my ($types,$typenames) = &Apache::loncommon::course_types();
2959: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2960: $env{'user.name'},'^status:');
2961: foreach my $key (keys(%statusinfo)) {
2962: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2963: (undef,my($cdom,$cnum)) = split(/:/,$key);
2964: my $requestkey = $cdom.'_'.$cnum;
2965: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2966: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2967: $env{'user.domain'},$env{'user.name'});
2968: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2969: my $reqtime = $history{'reqtime'};
2970: my $lastupdate = $history{'timestamp'};
2971: my $showtype = $history{'crstype'};
2972: if (defined($typenames->{$history{'crstype'}})) {
2973: $showtype = $typenames->{$history{'crstype'}};
2974: }
2975: my $description;
2976: if (ref($history{'details'}) eq 'HASH') {
2977: $description = $history{details}{'cdescr'};
2978: }
2979: @{$reqcrs{$reqtime}} = ($description,$showtype);
2980: }
2981: }
2982: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2983: if (@sortedtimes > 0) {
2984: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2985: &Apache::loncommon::start_data_table().
2986: &Apache::loncommon::start_data_table_header_row().
2987: '<th>'.&mt('Date requested').'</th>'.
2988: '<th>'.&mt('Course title').'</th>'.
2989: '<th>'.&mt('Course type').'</th>';
2990: &Apache::loncommon::end_data_table_header_row();
2991: foreach my $reqtime (@sortedtimes) {
2992: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2993: $output .= &Apache::loncommon::start_data_table_row().
2994: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2995: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2996: &Apache::loncommon::end_data_table_row();
2997: }
2998: $output .= &Apache::loncommon::end_data_table().
2999: '<br /></p>';
3000: }
3001: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
3002: if ($queuedselfenroll) {
3003: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
3004: $queuedselfenroll.'<br /></p>';
3005: }
3006: if ($env{'environment.canrequest.author'}) {
3007: unless (&Apache::loncoursequeueadmin::is_active_author()) {
3008: my $requestauthor;
3009: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
3010: if (($status eq 'approval') || ($status eq 'approved')) {
3011: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
3012: if ($status eq 'approval') {
3013: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
3014: &Apache::lonlocal::locallocaltime($timestamp));
3015: } elsif ($status eq 'approved') {
3016: my %roleshash =
3017: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
3018: ['active'],['au'],[$env{'user.domain'}]);
3019: if (keys(%roleshash)) {
3020: $output .= '<span class="LC_info">'.
3021: &mt('Your request for an author role has been approved.').'<br />'.
3022: &mt('Use the "Check for changes" link to update your list of roles.').
3023: '</span>';
3024: }
3025: }
3026: $output .= '</p>';
3027: }
3028: }
3029: }
3030: unless ($output) {
3031: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
3032: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
3033: $output = &mt('No requests for courses, communities or authoring currently queued');
3034: } else {
3035: $output = &mt('No enrollment requests currently queued awaiting approval');
3036: }
3037: }
3038: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
3039: $output.'</fieldset></div><br clear="all" />';
3040: }
3041:
3042: 1;
3043: __END__
3044:
3045: =head1 NAME
3046:
3047: Apache::lonroles - User Roles Screen
3048:
3049: =head1 SYNOPSIS
3050:
3051: Invoked by /etc/httpd/conf/srm.conf:
3052:
3053: <Location /adm/roles>
3054: PerlAccessHandler Apache::lonacc
3055: SetHandler perl-script
3056: PerlHandler Apache::lonroles
3057: ErrorDocument 403 /adm/login
3058: ErrorDocument 500 /adm/errorhandler
3059: </Location>
3060:
3061: =head1 OVERVIEW
3062:
3063: =head2 Choosing Roles
3064:
3065: C<lonroles> is a handler that allows a user to switch roles in
3066: mid-session. LON-CAPA attempts to work with "No Role Specified", the
3067: default role that a user has before selecting a role, as widely as
3068: possible, but certain handlers for example need specification which
3069: course they should act on, etc. Both in this scenario, and when the
3070: handler determines via C<lonnet>'s C<&allowed> function that a certain
3071: action is not allowed, C<lonroles> is used as error handler. This
3072: allows the user to select another role which may have permission to do
3073: what they were trying to do.
3074:
3075: =begin latex
3076:
3077: \begin{figure}
3078: \begin{center}
3079: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
3080: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
3081: \end{center}
3082: \end{figure}
3083:
3084: =end latex
3085:
3086: =head2 Role Initialization
3087:
3088: 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.
3089:
3090: =head1 INTRODUCTION
3091:
3092: This module enables a user to select what role he wishes to
3093: operate under (instructor, student, teaching assistant, course
3094: coordinator, etc). These roles are pre-established by the actions
3095: of upper-level users.
3096:
3097: This is part of the LearningOnline Network with CAPA project
3098: described at http://www.lon-capa.org.
3099:
3100: =head1 HANDLER SUBROUTINE
3101:
3102: This routine is called by Apache and mod_perl.
3103:
3104: =over 4
3105:
3106: =item *
3107:
3108: Roles Initialization (yes/no)
3109:
3110: =item *
3111:
3112: Get Error Message from Environment
3113:
3114: =item *
3115:
3116: Who is this?
3117:
3118: =item *
3119:
3120: Generate Page Output
3121:
3122: =item *
3123:
3124: Choice or no choice
3125:
3126: =item *
3127:
3128: Table
3129:
3130: =item *
3131:
3132: Privileges
3133:
3134: =back
3135:
3136: =cut
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