1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: #
4: # $Id: lonroles.pm,v 1.326 2017/02/20 18:29:28 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: if ($ENV{'SERVER_PORT'} == 443) {
679: my $hostname = $r->hostname();
680: if ($hostname ne '') {
681: $dest = 'http://'.$hostname.$dest;
682: }
683: }
684: }
685: if ($dest =~ m{^/enc/}) {
686: if ($env{'request.role.adv'}) {
687: $dest = &Apache::lonenc::unencrypted($dest);
688: if ($destsymb eq '') {
689: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]*)/);
690: $destsymb = &unescape($destsymb);
691: }
692: }
693: } else {
694: if ($destsymb eq '') {
695: ($destsymb) = ($dest =~ /(?:\?|\&)symb=([^\&]+)/);
696: $destsymb = &unescape($destsymb);
697: }
698: unless ($env{'request.role.adv'}) {
699: $checkenc = 1;
700: }
701: }
702: if (($checkenc) && ($destsymb ne '')) {
703: my ($encstate,$unencsymb,$res);
704: $unencsymb = &Apache::lonnet::symbclean($destsymb);
705: (undef,undef,$res) = &Apache::lonnet::decode_symb($unencsymb);
706: &Apache::lonnet::symbverify($unencsymb,$res,\$encstate);
707: if ($encstate) {
708: if (($dest ne '') && ($dest !~ m{^/enc/})) {
709: $dest=&Apache::lonenc::encrypted($dest);
710: }
711: }
712: }
713: }
714: unless (($dest =~ m{^/enc/}) || ($dest =~ /(\?|\&)symb=.+___\d+___.+/)) {
715: if (($destsymb ne '') && ($destsymb !~ m{^/enc/})) {
716: my $esc_symb = &escape($destsymb);
717: $dest .= (($dest =~/\?/)? '&':'?').'symb='.$esc_symb;
718: }
719: }
720: &redirect_user($r, &mt('Entering [_1]',
721: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
722: $dest, $msg);
723: return OK;
724: }
725: if (&Apache::lonnet::allowed('whn',
726: $env{'request.course.id'})
727: || &Apache::lonnet::allowed('whn',
728: $env{'request.course.id'}.'/'
729: .$env{'request.course.sec'})
730: ) {
731: my $startpage = &courseloadpage($env{'request.course.id'});
732: unless ($startpage eq 'firstres') {
733: $msg = &mt('Entering [_1] ...',
734: $env{'course.'.$env{'request.course.id'}.'.description'});
735: &redirect_user($r, &mt('New in course'),
736: '/adm/whatsnew?refpage=start', $msg);
737: return OK;
738: }
739: }
740: }
741: # Are we allowed to look at the first resource?
742: my $access;
743: if ($furl =~ m{^(/adm/wrapper|)/ext/}) {
744: # If it's an external resource,
745: # strip off the symb argument and possible query
746: my ($exturl,$symb) = ($furl =~ m{^(.+)(?:\?|\&)symb=(.+)$});
747: # Unencode $symb
748: $symb = &unescape($symb);
749: # Then check for permission
750: $access = &Apache::lonnet::allowed('bre',$exturl,$symb);
751: # For other resources just check for permission
752: } else {
753: $access = &Apache::lonnet::allowed('bre',$furl);
754: }
755: if (!$access) {
756: $furl = &Apache::lonpageflip::first_accessible_resource();
757: } elsif ($access eq 'B') {
758: $furl = '/adm/navmaps?showOnlyHomework=1';
759: }
760: $msg = &mt('Entering [_1] ...',
761: $env{'course.'.$cdom.'_'.$cnum.'.description'});
762: &redirect_user($r, &mt('Entering [_1]',
763: $env{'course.'.$cdom.'_'.$cnum.'.description'}),
764: $furl, $msg);
765: }
766: return OK;
767: }
768: }
769: #
770: # Send the user to the construction space they selected
771: if ($role =~ /^(au|ca|aa)$/) {
772: my $redirect_url = '/priv/';
773: if ($role eq 'au') {
774: $redirect_url.=$env{'user.domain'}.'/'.$env{'user.name'};
775: } else {
776: $redirect_url .= $where;
777: }
778: $redirect_url .= '/';
779: &redirect_user($r,&mt('Entering Authoring Space'),
780: $redirect_url);
781: return OK;
782: }
783: if ($role eq 'dc') {
784: my $redirect_url = '/adm/menu/';
785: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
786: $redirect_url);
787: return OK;
788: }
789: if ($role eq 'dh') {
790: my $redirect_url = '/adm/menu/';
791: &redirect_user($r,&mt('Loading Domain Helpdesk Menu'),
792: $redirect_url);
793: return OK;
794: }
795: if ($role eq 'da') {
796: my $redirect_url = '/adm/menu/';
797: &redirect_user($r,&mt('Loading Domain Helpdesk Assistant Menu'),
798: $redirect_url);
799: return OK;
800: }
801: if ($role eq 'sc') {
802: my $redirect_url = '/adm/grades?command=scantronupload';
803: &redirect_user($r,&mt('Loading Data Upload Page'),
804: $redirect_url);
805: return OK;
806: }
807: }
808: }
809: }
810: }
811:
812:
813: # =============================================================== No Roles Init
814:
815: &Apache::loncommon::content_type($r,'text/html');
816: &Apache::loncommon::no_cache($r);
817: $r->send_http_header;
818: return OK if $r->header_only;
819:
820: my $crumbtext = 'User Roles';
821: my $pagetitle = 'My Roles';
822: my $recent = &mt('Recent Roles');
823: my $standby = &mt('Role selected. Please stand by.');
824: my $show_course=&Apache::loncommon::show_course();
825: if ($show_course) {
826: $crumbtext = 'Courses';
827: $pagetitle = 'My Courses';
828: $recent = &mt('Recent Courses');
829: $standby = &mt('Course selected. Please stand by.');
830: }
831: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
832:
833: my %roles_in_env;
834: my $showcount = &roles_from_env(\%roles_in_env,$update);
835:
836: my $swinfo=&Apache::lonmenu::rawconfig();
837: my %domdefs=&Apache::lonnet::get_domain_defaults($env{'user.domain'});
838: my $cattype = 'std';
839: if ($domdefs{'catauth'}) {
840: $cattype = $domdefs{'catauth'};
841: }
842: my $placementonly;
843: if ($showcount == 1) {
844: if ($env{'request.course.id'}) {
845: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
846: $placementonly = 1;
847: }
848: } else {
849: foreach my $rolecode (keys(%roles_in_env)) {
850: my ($cid) = ($rolecode =~ m{^\Quser.role.st./\E($match_domain/$match_courseid)(?:/|$)});
851: if ($cid) {
852: my %coursedescription =
853: &Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
854: if ($coursedescription{'type'} eq 'Placement') {
855: $placementonly = 1;
856: }
857: last;
858: }
859: }
860: }
861: }
862: my ($start_page,$funcs);
863: if ($placementonly) {
864: $start_page=&Apache::loncommon::start_page($pagetitle,undef,
865: {bread_crumbs=>$brcrum,crstype=>'Placement'});
866: } else {
867: $funcs = &get_roles_functions($showcount,$cattype);
868: my $crumbsright;
869: if ($env{'browser.mobile'}) {
870: $crumbsright = $funcs;
871: undef($funcs);
872: }
873: $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum,
874: bread_crumbs_component=>$crumbsright});
875: }
876: &js_escape(\$standby);
877: 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 />';
878:
879: $r->print(<<ENDHEADER);
880: $start_page
881: $funcs
882: <noscript>
883: $noscript
884: </noscript>
885: <script type="text/javascript">
886: // <![CDATA[
887: $swinfo
888: window.focus();
889:
890: active=true;
891:
892: function enterrole (thisform,rolecode,buttonname) {
893: if (active) {
894: active=false;
895: document.title='$standby';
896: window.status='$standby';
897: thisform.newrole.value=rolecode;
898: thisform.submit();
899: } else {
900: alert('$standby');
901: }
902: }
903:
904: function rolesView (caller) {
905: if ((caller == 'showall') || (caller == 'noshowall')) {
906: document.rolechoice.display.value = caller;
907: } else {
908: if ((caller == 'doupdate') || (caller == 'requestauthor') ||
909: (caller == 'queued')) {
910: document.rolechoice.state.value = caller;
911: }
912: }
913: document.rolechoice.selectrole.value='';
914: document.rolechoice.submit();
915: }
916:
917: // ]]>
918: </script>
919: ENDHEADER
920:
921: # ------------------------------------------ Get Error Message from Environment
922:
923: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
924: if ($env{'user.error.msg'}) {
925: $r->log_reason(
926: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
927: }
928:
929: # ------------------------------------------------- Can this user re-init, etc?
930:
931: my $advanced=$env{'user.adv'};
932: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
933: my $tryagain=$env{'form.tryagain'};
934: my $reinit=$env{'user.reinit'};
935: delete $env{'user.reinit'};
936:
937: # -------------------------------------------------------- Generate Page Output
938: # --------------------------------------------------------------- Error Header?
939: if ($error) {
940: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
941: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
942: if ($priv ne '') {
943: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
944: }
945: if ($fn ne '') {
946: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
947: }
948: if ($msg ne '') {
949: $r->print(&mt('Action : ').$msg."\n");
950: }
951: $r->print("</pre><hr />");
952: my $url=$fn;
953: my $last;
954: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
955: &GDBM_READER(),0640)) {
956: $last=$hash{'last_known'};
957: untie(%hash);
958: }
959: if ($last) { $fn.='?symb='.&escape($last); }
960:
961: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
962: &Apache::lonenc::check_encrypt($fn));
963: } else {
964: if ($env{'user.error.msg'}) {
965: if ($reinit) {
966: $r->print(
967: '<h3><span class="LC_error">'.
968: &mt('As your session file for the course or community has expired, you will need to re-select it.').'</span></h3>');
969: } else {
970: $r->print(
971: '<h3><span class="LC_error">'.
972: &mt('You need to choose another user role or enter a specific course or community for this function.').
973: '</span></h3>');
974: }
975: }
976: }
977: if ($nochoose) {
978: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
979: &mt('This action is currently not authorized.').'</span>'.
980: &Apache::loncommon::end_page());
981: return OK;
982: } else {
983: if ($updateresult || $reqauthor || $hotlist) {
984: my $showresult = '<div>';
985: if ($updateresult) {
986: $showresult .= &Apache::lonhtmlcommon::confirm_success($updateresult);
987: }
988: if ($reqauthor) {
989: $showresult .= &Apache::lonhtmlcommon::confirm_success($reqauthor);
990: }
991: if ($hotlist) {
992: $showresult .= $hotlist;
993: }
994: $showresult .= '</div>';
995: $r->print($showresult);
996: } elsif ($env{'form.state'} eq 'queued') {
997: $r->print(&get_queued());
998: }
999: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
1000: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1001: }
1002: my $display = ($env{'form.display'} =~ /^(showall)$/);
1003: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1004: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
1005: $r->print('<input type="hidden" name="selectrole" value="1" />');
1006: $r->print('<input type="hidden" name="newrole" value="" />');
1007: $r->print('<input type="hidden" name="display" value="'.$display.'" />');
1008: $r->print('<input type="hidden" name="state" value="" />');
1009: }
1010: $r->rflush();
1011:
1012: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
1013: my ($countactive,$countfuture,$inrole,$possiblerole) =
1014: &gather_roles($update,$refresh,$now,$reinit,$nochoose,\%roles_in_env,\%roletext,
1015: \%sortrole,\%roleclass,\%futureroles,\%timezones,$loncaparev);
1016: $refresh = $now;
1017: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
1018: if ($countactive == 1) {
1019: if ($env{'request.course.id'}) {
1020: if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') {
1021: $placementonly = 1;
1022: }
1023: } elsif ($possiblerole) {
1024: if ($possiblerole =~ m{^st\./($match_domain)/($match_courseid)(?:/|$)}) {
1025: if ($env{'course.'.$1.'_'.$2.'.type'} eq 'Placement') {
1026: $placementonly = 1;
1027: }
1028: }
1029: }
1030: }
1031: if ((($cattype eq 'std') || ($cattype eq 'domonly')) && (!$env{'user.adv'}) &&
1032: (!$placementonly)) {
1033: if ($countactive > 0) {
1034: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1035: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1036: $r->print(
1037: '<p>'
1038: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3][_4]'
1039: .' to view all [_5] LON-CAPA courses and communities.'
1040: ,'<b>'
1041: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1042: ,'</a>'
1043: ,'</b>'
1044: ,'"'.$domdesc.'"')
1045: .'<br />'
1046: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
1047: .' you may be able to enroll if self-enrollment is permitted.'
1048: ,'<b>','</b>')
1049: .'</p>'
1050: );
1051: }
1052: }
1053:
1054: # No active roles
1055: if ($countactive==0) {
1056: &requestcourse_advice($r,$cattype,$inrole);
1057: $r->print('</form>');
1058: if ($countfuture) {
1059: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
1060: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
1061: $nochoose);
1062: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
1063: \%roletext,$update,$then);
1064: my $tremark='';
1065: my $tbg;
1066: if ($env{'request.role'} eq 'cm') {
1067: $tbg="LC_roles_selected";
1068: $tremark=&mt('Currently selected.').' ';
1069: } else {
1070: $tbg="LC_roles_is";
1071: }
1072: $r->print(&Apache::loncommon::start_data_table_row()
1073: .'<td class="'.$tbg.'"> </td>'
1074: .'<td colspan="3">'
1075: .&mt('No role specified')
1076: .'</td>'
1077: .'<td>'.$tremark.' </td>'
1078: .&Apache::loncommon::end_data_table_row()
1079: );
1080:
1081: $r->print(&Apache::loncommon::end_data_table());
1082: }
1083: $r->print(&Apache::loncommon::end_page());
1084: return OK;
1085: } elsif (($placementonly) && ($env{'request.role'} eq 'cm')) {
1086: $r->print('<h3>'.&mt('Please stand by.').'</h3>
1087: <input type="hidden" name="'.$possiblerole.'" value="1" />
1088: <noscript><br />
1089: <input type="submit" name="submit" value="'.&mt('Continue').'" />
1090: </noscript></form>');
1091: $r->rflush();
1092: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
1093: $r->print(&Apache::loncommon::end_page());
1094: return OK;
1095: }
1096: # ----------------------------------------------------------------------- Table
1097:
1098: if (($numdc > 0) || (($numhelpdesk > 0) && ($numadhoc > 0))) {
1099: $r->print(&coursepick_jscript());
1100: $r->print(&Apache::loncommon::coursebrowser_javascript().
1101: &Apache::loncommon::authorbrowser_javascript());
1102: }
1103:
1104: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1105: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1106: }
1107: if ($env{'form.destinationurl'}) {
1108: $r->print('<input type="hidden" name="destinationurl" value="'.
1109: $env{'form.destinationurl'}.'" />');
1110: if ($env{'form.destsymb'} ne '') {
1111: $r->print('<input type="hidden" name="destsymb" value="'.
1112: $env{'form.destsymb'}.'" />');
1113: }
1114: }
1115:
1116: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1117: if ($env{'environment.recentroles'}) {
1118: my %recent_roles =
1119: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1120: my $output='';
1121: foreach my $role (sort(keys(%recent_roles))) {
1122: if (ref($roletext{'user.role.'.$role}) eq 'ARRAY') {
1123: $output.= &Apache::loncommon::start_data_table_row().
1124: $roletext{'user.role.'.$role}->[0].
1125: &Apache::loncommon::end_data_table_row();
1126: if ($roletext{'user.role.'.$role}->[1] ne '') {
1127: $output .= &Apache::loncommon::continue_data_table_row().
1128: $roletext{'user.role.'.$role}->[1].
1129: &Apache::loncommon::end_data_table_row();
1130: }
1131: if ($role =~ m{^dc\./($match_domain)/$}
1132: && $dcroles{$1}) {
1133: $output .= &adhoc_roles_row($1,'recent');
1134: } elsif ($role =~ m{^(dh|da)\./($match_domain)/$}) {
1135: $output .= &adhoc_customroles_row($1,$2,'recent',$update,$then);
1136: }
1137: } elsif ($numdc > 0) {
1138: unless ($role =~/^error\:/) {
1139: my ($roletext,$role_text_end) = &display_cc_role('user.role.'.$role);
1140: if ($roletext) {
1141: $output.= &Apache::loncommon::start_data_table_row().
1142: $roletext.
1143: &Apache::loncommon::end_data_table_row();
1144: if ($role_text_end) {
1145: $output .= &Apache::loncommon::continue_data_table_row().
1146: $role_text_end.
1147: &Apache::loncommon::end_data_table_row();
1148: }
1149: }
1150: }
1151: }
1152: }
1153: if ($output) {
1154: $r->print(&Apache::loncommon::start_data_table_empty_row()
1155: .'<td align="center" colspan="5">'
1156: .$recent
1157: .'</td>'
1158: .&Apache::loncommon::end_data_table_empty_row()
1159: );
1160: $r->print($output);
1161: $doheaders ++;
1162: }
1163: }
1164: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext,$update,$then);
1165: if ($countactive > 1) {
1166: my $tremark='';
1167: my $tbg;
1168: if ($env{'request.role'} eq 'cm') {
1169: $tbg="LC_roles_selected";
1170: $tremark=&mt('Currently selected.').' ';
1171: } else {
1172: $tbg="LC_roles_is";
1173: }
1174: $r->print(&Apache::loncommon::start_data_table_row());
1175: unless ($nochoose) {
1176: if ($env{'request.role'} ne 'cm') {
1177: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1178: &mt('Select').'" name="cm" /></td>');
1179: } else {
1180: $r->print('<td class="'.$tbg.'"> </td>');
1181: }
1182: }
1183: $r->print('<td colspan="3">'
1184: .&mt('No role specified')
1185: .'</td>'
1186: .'<td>'.$tremark.' </td>'
1187: .&Apache::loncommon::end_data_table_row()
1188: );
1189: }
1190: $r->print(&Apache::loncommon::end_data_table());
1191: unless ($nochoose) {
1192: $r->print("</form>\n");
1193: }
1194: # ------------------------------------------------------------ Privileges Info
1195: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1196: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1197: $r->print(&privileges_info());
1198: }
1199: my $announcements = &Apache::lonnet::getannounce();
1200: $r->print(
1201: '<br />'.
1202: '<h2>'.&mt('Announcements').'</h2>'.
1203: $announcements
1204: ) unless (!$announcements);
1205: if ($advanced) {
1206: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1207: $r->print('<p><small><i>'
1208: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
1209: .'</i></small></p>');
1210: }
1211: $r->print(&Apache::loncommon::end_page());
1212: return OK;
1213: }
1214:
1215: sub roles_from_env {
1216: my ($roleshash,$update) = @_;
1217: my $count = 0;
1218: if (ref($roleshash) eq 'HASH') {
1219: foreach my $envkey (keys(%env)) {
1220: if ($envkey =~ m{^user\.role\.(\w+)[./]}) {
1221: next if ($1 eq 'gr');
1222: $roleshash->{$envkey} = $env{$envkey};
1223: my ($start,$end) = split(/\./,$env{$envkey});
1224: unless ($end && $end<$update) {
1225: $count ++;
1226: }
1227: }
1228: }
1229: }
1230: return $count;
1231: }
1232:
1233: sub gather_roles {
1234: my ($update,$refresh,$now,$reinit,$nochoose,$roles_in_env,$roletext,$sortrole,$roleclass,$futureroles,
1235: $timezones,$loncaparev) = @_;
1236: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
1237: my $advanced = $env{'user.adv'};
1238: my $tryagain = $env{'form.tryagain'};
1239: my @ids = &Apache::lonnet::current_machine_ids();
1240: if (ref($roles_in_env) eq 'HASH') {
1241: my %adhocdesc;
1242: foreach my $envkey (sort(keys(%{$roles_in_env}))) {
1243: my $button = 1;
1244: my $switchserver='';
1245: my $switchwarning;
1246: my ($role_text,$role_text_end,$sortkey,$role,$where,$trolecode,$tstart,
1247: $tend,$tremark,$tstatus,$tpstart,$tpend);
1248: &Apache::lonnet::role_status($envkey,$update,$refresh,$now,\$role,\$where,
1249: \$trolecode,\$tstatus,\$tstart,\$tend);
1250: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1251: $tremark='';
1252: $tpstart=' ';
1253: $tpend=' ';
1254: if ($env{'request.role'} eq $trolecode) {
1255: $tstatus='selected';
1256: }
1257: my $tbg;
1258: if (($tstatus eq 'is')
1259: || ($tstatus eq 'selected')
1260: || ($tstatus eq 'future')
1261: || ($env{'form.display'} eq 'showall')) {
1262: my $timezone = &role_timezone($where,$timezones);
1263: if ($tstart) {
1264: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1265: }
1266: if ($tend) {
1267: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1268: }
1269: if ($tstatus eq 'is') {
1270: $tbg='LC_roles_is';
1271: $possiblerole=$trolecode;
1272: $countactive++;
1273: } elsif ($tstatus eq 'future') {
1274: $tbg='LC_roles_future';
1275: $button=0;
1276: $futureroles->{$trolecode} = $tstart.':'.$tend;
1277: $countfuture ++;
1278: } elsif ($tstatus eq 'expired') {
1279: $tbg='LC_roles_expired';
1280: $button=0;
1281: } elsif ($tstatus eq 'will_not') {
1282: $tbg='LC_roles_will_not';
1283: $tremark.=&mt('Expired after logout.').' ';
1284: } elsif ($tstatus eq 'selected') {
1285: $tbg='LC_roles_selected';
1286: $inrole=1;
1287: $countactive++;
1288: $tremark.=&mt('Currently selected.').' ';
1289: }
1290: my $trole;
1291: if ($role =~ /^cr\//) {
1292: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1293: unless ($rauthor eq $rdomain.'-domainconfig') {
1294: if ($tremark) { $tremark.='<br />'; }
1295: $tremark.=&mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
1296: }
1297: }
1298: $trole=Apache::lonnet::plaintext($role);
1299: my $ttype;
1300: my $twhere;
1301: my $skipcal;
1302: my ($tdom,$trest,$tsection)=
1303: split(/\//,Apache::lonnet::declutter($where));
1304: # First, Co-Authorship roles
1305: if (($role eq 'ca') || ($role eq 'aa')) {
1306: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1307: my $allowed=0;
1308: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1309: if (!$allowed) {
1310: $button=0;
1311: $switchserver='otherserver='.$home.'&role='.$trolecode;
1312: }
1313: #next if ($home eq 'no_host');
1314: $home = &Apache::lonnet::hostname($home);
1315: $ttype='Authoring Space';
1316: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
1317: ': '.$tdom.'<br />'.
1318: ' '.&mt('Server').': '.$home;
1319: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1320: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1321: $sortkey=$role."$trest:$tdom";
1322: } elsif ($role eq 'au') {
1323: # Authors
1324: my $home = &Apache::lonnet::homeserver
1325: ($env{'user.name'},$env{'user.domain'});
1326: my $allowed=0;
1327: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
1328: if (!$allowed) {
1329: $button=0;
1330: $switchserver='otherserver='.$home.'&role='.$trolecode;
1331: }
1332: #next if ($home eq 'no_host');
1333: $home = &Apache::lonnet::hostname($home);
1334: $ttype='Authoring Space';
1335: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
1336: ': '.$home;
1337: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1338: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1339: $sortkey=$role;
1340: } elsif ($trest) {
1341: my $tcourseid=$tdom.'_'.$trest;
1342: $ttype = &Apache::loncommon::course_type($tcourseid);
1343: if ($role !~ /^cr/) {
1344: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1345: } elsif ($role =~ m{^\Qcr/$tdom/$tdom\E\-domainconfig/(\w+)$}) {
1346: my $rolename = $1;
1347: my $desc;
1348: if (ref($adhocdesc{$tdom}) eq 'HASH') {
1349: $desc = $adhocdesc{$tdom}{$rolename};
1350: } else {
1351: my %domdef = &Apache::lonnet::get_domain_defaults($tdom);
1352: if (ref($domdef{'adhocroles'}) eq 'HASH') {
1353: foreach my $rolename (sort(keys(%{$domdef{'adhocroles'}}))) {
1354: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
1355: $adhocdesc{$tdom}{$rolename} = $domdef{'adhocroles'}{$rolename}{'desc'};
1356: $desc = $adhocdesc{$tdom}{$rolename};
1357: }
1358: }
1359: }
1360: }
1361: if ($desc ne '') {
1362: $trole = $desc;
1363: } else {
1364: $trole = &mt('Helpdesk[_1]',' '.$rolename);
1365: }
1366: } else {
1367: $trole = (split(/\//,$role,4))[-1];
1368: }
1369: if ($env{'course.'.$tcourseid.'.description'}) {
1370: my $home=$env{'course.'.$tcourseid.'.home'};
1371: $twhere=$env{'course.'.$tcourseid.'.description'};
1372: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1373: $twhere = &HTML::Entities::encode($twhere,'"<>&');
1374: unless ($twhere eq &mt('Currently not available')) {
1375: $twhere.=' <span class="LC_fontsize_small">'.
1376: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1377: '</span>';
1378: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1379: my $required = $env{'course.'.$tcourseid.'.internal.releaserequired'};
1380: if ($required ne '') {
1381: ($switchserver,$switchwarning) =
1382: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1383: if ($switchserver || $switchwarning) {
1384: $button = 0;
1385: }
1386: }
1387: }
1388: }
1389: } else {
1390: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1391: if (%newhash) {
1392: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1393: "\0".$envkey;
1394: $twhere=&HTML::Entities::encode($newhash{'description'},'"<>&').
1395: ' <span class="LC_fontsize_small">'.
1396: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1397: '</span>';
1398: $ttype = $newhash{'type'};
1399: $trole = &Apache::lonnet::plaintext($role,$ttype,$tcourseid);
1400: my $home = $newhash{'home'};
1401: unless ($home && grep(/^\Q$home\E$/,@ids) && $loncaparev eq '') {
1402: my $required = $newhash{'internal.releaserequired'};
1403: if ($required ne '') {
1404: ($switchserver,$switchwarning) =
1405: &Apache::loncommon::check_release_required($loncaparev,$tcourseid,$trolecode,$required);
1406: if ($switchserver || $switchwarning) {
1407: $button = 0;
1408: }
1409: }
1410: }
1411: } else {
1412: $twhere=&mt('Currently not available');
1413: $env{'course.'.$tcourseid.'.description'}=$twhere;
1414: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1415: $ttype = 'Unavailable';
1416: $skipcal = 1;
1417: }
1418: }
1419: if ($ttype eq 'Placement') {
1420: $ttype = 'Placement Test';
1421: }
1422: if ($tsection) {
1423: $twhere.='<br />'.&mt('Section').': '.$tsection;
1424: }
1425: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1426: } elsif ($tdom) {
1427: $ttype='Domain';
1428: $twhere=$tdom;
1429: $sortkey=$role.$twhere;
1430: } else {
1431: $ttype='System';
1432: $twhere=&mt('system wide');
1433: $sortkey=$role.$twhere;
1434: }
1435: ($role_text,$role_text_end) =
1436: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1437: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1438: $tpend,$nochoose,$button,$switchserver,$reinit,
1439: $switchwarning,$skipcal);
1440: $roletext->{$envkey}=[$role_text,$role_text_end];
1441: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1442: $sortrole->{$sortkey}=$envkey;
1443: $roleclass->{$envkey}=$ttype;
1444: }
1445: }
1446: }
1447: return ($countactive,$countfuture,$inrole,$possiblerole);
1448: }
1449:
1450: sub role_timezone {
1451: my ($where,$timezones) = @_;
1452: my $timezone;
1453: if (ref($timezones) eq 'HASH') {
1454: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1455: my $cdom = $1;
1456: my $cnum = $2;
1457: if ($cdom && $cnum) {
1458: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1459: my $tz;
1460: if ($env{'course.'.$cdom.'_'.$cnum.'.description'}) {
1461: $tz = $env{'course.'.$cdom.'_'.$cnum.'.timezone'};
1462: } else {
1463: my %timehash =
1464: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1465: $tz = $timehash{'timezone'};
1466: }
1467: if ($tz eq '') {
1468: if (!exists($timezones->{$cdom})) {
1469: my %domdefaults =
1470: &Apache::lonnet::get_domain_defaults($cdom);
1471: if ($domdefaults{'timezone_def'} eq '') {
1472: $timezones->{$cdom} = 'local';
1473: } else {
1474: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1475: }
1476: }
1477: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1478: } else {
1479: $timezones->{$cdom.'_'.$cnum} =
1480: &Apache::lonlocal::gettimezone($tz);
1481: }
1482: }
1483: $timezone = $timezones->{$cdom.'_'.$cnum};
1484: }
1485: } else {
1486: my ($tdom) = ($where =~ m{^/($match_domain)});
1487: if ($tdom) {
1488: if (!exists($timezones->{$tdom})) {
1489: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1490: if ($domdefaults{'timezone_def'} eq '') {
1491: $timezones->{$tdom} = 'local';
1492: } else {
1493: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1494: }
1495: }
1496: $timezone = $timezones->{$tdom};
1497: }
1498: }
1499: if ($timezone eq 'local') {
1500: $timezone = undef;
1501: }
1502: }
1503: return $timezone;
1504: }
1505:
1506: sub roletable_headers {
1507: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1508: my $doheaders;
1509: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1510: $r->print('<br />'
1511: .&Apache::loncommon::start_data_table('LC_textsize_mobile')
1512: .&Apache::loncommon::start_data_table_header_row()
1513: );
1514: if (!$nochoose) { $r->print('<th> </th>'); }
1515: $r->print('<th>'.&mt('User Role').'</th>'
1516: .'<th>'.&mt('Extent').'</th>'
1517: .'<th>'.&mt('Start').'</th>'
1518: .'<th>'.&mt('End').'</th>'
1519: .&Apache::loncommon::end_data_table_header_row()
1520: );
1521: $doheaders=-1;
1522: my @roletypes = &roletypes();
1523: foreach my $type (@roletypes) {
1524: my $haverole=0;
1525: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1526: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1527: $haverole=1;
1528: }
1529: }
1530: if ($haverole) { $doheaders++; }
1531: }
1532: }
1533: return $doheaders;
1534: }
1535:
1536: sub roletypes {
1537: my @types = ('Domain','Authoring Space','Course','Placement Test','Community','Unavailable','System');
1538: return @types;
1539: }
1540:
1541: sub print_rolerows {
1542: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext,$update,$then) = @_;
1543: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1544: my @types = &roletypes();
1545: foreach my $type (@types) {
1546: my $output;
1547: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1548: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1549: if (ref($roletext) eq 'HASH') {
1550: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1551: $output.= &Apache::loncommon::start_data_table_row().
1552: $roletext->{$sortrole->{$which}}->[0].
1553: &Apache::loncommon::end_data_table_row();
1554: if ($roletext->{$sortrole->{$which}}->[1] ne '') {
1555: $output .= &Apache::loncommon::continue_data_table_row().
1556: $roletext->{$sortrole->{$which}}->[1].
1557: &Apache::loncommon::end_data_table_row();
1558: }
1559: }
1560: if ($sortrole->{$which} =~ m{^user\.role\.dc\./($match_domain)/}) {
1561: if (ref($dcroles) eq 'HASH') {
1562: if ($dcroles->{$1}) {
1563: $output .= &adhoc_roles_row($1,'');
1564: }
1565: }
1566: } elsif ($sortrole->{$which} =~ m{^user\.role\.(dh|da)\./($match_domain)/}) {
1567: $output .= &adhoc_customroles_row($1,$2,'',$update,$then);
1568: }
1569: }
1570: }
1571: }
1572: if ($output) {
1573: if ($doheaders > 0) {
1574: $r->print(&Apache::loncommon::start_data_table_empty_row()
1575: .'<td align="center" colspan="5">'
1576: .&mt($type)
1577: .'</td>'
1578: .&Apache::loncommon::end_data_table_empty_row()
1579: );
1580: }
1581: $r->print($output);
1582: }
1583: }
1584: }
1585: }
1586:
1587: sub findcourse_advice {
1588: my ($r,$cattype) = @_;
1589: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1590: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1591: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1592: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1593: <ul>
1594: <li>'.&mt('The course has yet to be created.').'</li>
1595: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1596: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1597: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1598: <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>
1599: </ul>');
1600: } else {
1601: $r->print(&mt('If you were expecting to see an active role listed for a particular course, that course may not have been created yet.').'<br />');
1602: }
1603: if (($cattype eq 'std') || ($cattype eq 'domonly')) {
1604: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
1605: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1606: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>'.
1607: &Apache::loncoursequeueadmin::queued_selfenrollment());
1608: }
1609: return;
1610: }
1611:
1612: sub requestcourse_advice {
1613: my ($r,$cattype,$inrole) = @_;
1614: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1615: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1616: my (%can_request,%request_doms,$output);
1617: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
1618: if (keys(%request_doms) > 0) {
1619: my ($types,$typename) = &Apache::loncommon::course_types();
1620: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
1621: my (@reqdoms,@reqtypes);
1622: foreach my $type (sort(keys(%request_doms))) {
1623: push(@reqtypes,$type);
1624: if (ref($request_doms{$type}) eq 'ARRAY') {
1625: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
1626: $output .=
1627: '<li>'
1628: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
1629: '<i>',
1630: '</i>',
1631: '<b>'.$domstr.'</b>')
1632: .'</li>';
1633: foreach my $dom (@{$request_doms{$type}}) {
1634: unless (grep(/^\Q$dom\E/,@reqdoms)) {
1635: push(@reqdoms,$dom);
1636: }
1637: }
1638: }
1639: }
1640: my @showtypes;
1641: foreach my $type (@{$types}) {
1642: if (grep(/^\Q$type\E$/,@reqtypes)) {
1643: push(@showtypes,$type);
1644: }
1645: }
1646: my $requrl = '/adm/requestcourse';
1647: if (@reqdoms == 1) {
1648: $requrl .= '?showdom='.$reqdoms[0];
1649: }
1650: if (@showtypes > 0) {
1651: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
1652: }
1653: if (@reqdoms == 1 || @showtypes > 0) {
1654: $requrl .= '&state=crstype&action=new';
1655: }
1656: if ($output) {
1657: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
1658: '<p>'.
1659: &mt('You have rights to request the creation of courses and/or communities in the following domain(s):').
1660: '<ul>'.
1661: $output.
1662: '</ul>'.
1663: &mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.',
1664: '<a href="'.$requrl.'">','</a>').
1665: '</p>');
1666: }
1667: }
1668: } elsif (!$env{'user.adv'}) {
1669: if ($inrole) {
1670: $r->print('<h3>'.&mt('Currently no additional roles, courses or communities').'</h3>');
1671: } else {
1672: $r->print('<h3>'.&mt('Currently no active roles, courses or communities').'</h3>');
1673: }
1674: &findcourse_advice($r,$cattype);
1675: }
1676: return;
1677: }
1678:
1679: sub privileges_info {
1680: my ($which) = @_;
1681: my $output;
1682:
1683: $which ||= $env{'request.role'};
1684:
1685: foreach my $envkey (sort(keys(%env))) {
1686: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1687:
1688: my $where=$1;
1689: my $ttype;
1690: my $twhere;
1691: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1692: if ($trest) {
1693: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1694: $ttype='Authoring Space';
1695: $twhere='User: '.$trest.', Domain: '.$tdom;
1696: } else {
1697: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1698: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1699: if ($tsec) {
1700: my $sec_type = 'Section';
1701: if (exists($env{"user.role.gr.$where"})) {
1702: $sec_type = 'Group';
1703: }
1704: $twhere.=' ('.$sec_type.': '.$tsec.')';
1705: }
1706: }
1707: } elsif ($tdom) {
1708: $ttype='Domain';
1709: $twhere=$tdom;
1710: } else {
1711: $ttype='System';
1712: $twhere='/';
1713: }
1714: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1715: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1716: next if (!$priv);
1717:
1718: my ($prv,$restr)=split(/\&/,$priv);
1719: my $trestr='';
1720: if ($restr ne 'F') {
1721: $trestr.=' ('.
1722: join(', ',
1723: map { &Apache::lonnet::plaintext($_) }
1724: (split('',$restr))).') ';
1725: }
1726: $output .= "\n\t".
1727: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1728: }
1729: $output .= "\n".'</ul>';
1730: }
1731: return $output;
1732: }
1733:
1734: sub build_roletext {
1735: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,
1736: $tpstart,$tpend,$nochoose,$button,$switchserver,$reinit,$switchwarning,$skipcal) = @_;
1737: my ($roletext,$roletext_end);
1738: my $is_dc=($trolecode =~ m/^dc\./);
1739: my $rowspan=($is_dc) ? ''
1740: : ' rowspan="2" ';
1741:
1742: unless ($nochoose) {
1743: my $buttonname=$trolecode;
1744: $buttonname=~s/\W//g;
1745: if (!$button) {
1746: if ($switchserver) {
1747: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1748: .'<a href="/adm/switchserver?'.$switchserver.'">'
1749: .&mt('Switch Server')
1750: .'</a></td>';
1751: } else {
1752: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1753: }
1754: if ($switchwarning) {
1755: if ($tremark eq '') {
1756: $tremark = $switchwarning;
1757: } else {
1758: $tremark .= '<br />'.$switchwarning;
1759: }
1760: }
1761: } elsif ($tstatus eq 'is') {
1762: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1763: '<input name="'.$buttonname.'" type="button" value="'.
1764: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1765: $trolecode."','".$buttonname.'\');" /></td>';
1766: } elsif ($tryagain) {
1767: $roletext.=
1768: '<td'.$rowspan.' class="'.$tbg.'">'.
1769: '<input name="'.$buttonname.'" type="button" value="'.
1770: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1771: $trolecode."','".$buttonname.'\');" /></td>';
1772: } elsif ($advanced) {
1773: $roletext.=
1774: '<td'.$rowspan.' class="'.$tbg.'">'.
1775: '<input name="'.$buttonname.'" type="button" value="'.
1776: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1777: $trolecode."','".$buttonname.'\');" /></td>';
1778: } elsif ($reinit) {
1779: $roletext.=
1780: '<td'.$rowspan.' class="'.$tbg.'">'.
1781: '<input name="'.$buttonname.'" type="button" value="'.
1782: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1783: $trolecode."','".$buttonname.'\');" /></td>';
1784: } else {
1785: $roletext.=
1786: '<td'.$rowspan.' class="'.$tbg.'">'.
1787: '<input name="'.$buttonname.'" type="button" value="'.
1788: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1789: $trolecode."','".$buttonname.'\');" /></td>';
1790: }
1791: }
1792: if (($trolecode !~ m/^(dc|ca|au|aa)\./) && (!$skipcal)) {
1793: $tremark.=&Apache::lonannounce::showday(time,1,
1794: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1795: }
1796: $roletext.='<td>'.$trole.'</td>'
1797: .'<td>'.$twhere.'</td>'
1798: .'<td>'.$tpstart.'</td>'
1799: .'<td>'.$tpend.'</td>';
1800: if (!$is_dc) {
1801: $roletext_end = '<td colspan="4">'.
1802: $tremark.' '.
1803: '</td>';
1804: }
1805: return ($roletext,$roletext_end);
1806: }
1807:
1808: sub check_author_homeserver {
1809: my ($uname,$udom)=@_;
1810: if (($uname eq '') || ($udom eq '')) {
1811: return ('fail','');
1812: }
1813: my $home = &Apache::lonnet::homeserver($uname,$udom);
1814: if (&Apache::lonnet::host_domain($home) ne $udom) {
1815: return ('fail',$home);
1816: }
1817: my @ids=&Apache::lonnet::current_machine_ids();
1818: if (grep(/^\Q$home\E$/,@ids)) {
1819: return ('ok',$home);
1820: } else {
1821: return ('switchserver',$home);
1822: }
1823: }
1824:
1825: sub check_for_adhoc {
1826: my ($dcroles,$helpdeskroles,$update,$then) = @_;
1827: my $numdc = 0;
1828: my $numhelpdesk = 0;
1829: my $numadhoc = 0;
1830: my $num_custom_adhoc = 0;
1831: if ($env{'user.adv'}) {
1832: foreach my $envkey (sort(keys(%env))) {
1833: if ($envkey=~/^user\.role\.(dc|dh|da)\.\/($match_domain)\/$/) {
1834: my $role = $1;
1835: my $roledom = $2;
1836: my $liverole = 1;
1837: my ($tstart,$tend)=split(/\./,$env{$envkey});
1838: my $limit = $update;
1839: if ($env{'request.role'} eq "$role./$roledom/") {
1840: $limit = $then;
1841: }
1842: if ($tstart && $tstart>$limit) { $liverole = 0; }
1843: if ($tend && $tend <$limit) { $liverole = 0; }
1844: if ($liverole) {
1845: if ($role eq 'dc') {
1846: $dcroles->{$roledom} = $envkey;
1847: $numdc++;
1848: } else {
1849: $helpdeskroles->{$roledom} = $envkey;
1850: my %domdefaults = &Apache::lonnet::get_domain_defaults($roledom);
1851: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
1852: if (keys(%{$domdefaults{'adhocroles'}})) {
1853: $numadhoc ++;
1854: }
1855: }
1856: $numhelpdesk++;
1857: }
1858: }
1859: }
1860: }
1861: }
1862: return ($numdc,$numhelpdesk,$numadhoc);
1863: }
1864:
1865: sub adhoc_course_role {
1866: my ($refresh,$update,$then) = @_;
1867: my ($cdom,$cnum,$crstype);
1868: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1869: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1870: $crstype = &Apache::loncommon::course_type();
1871: if (&check_forcc($cdom,$cnum,$refresh,$update,$then,$crstype)) {
1872: my $setprivs;
1873: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1874: $setprivs = 1;
1875: } else {
1876: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1877: if (($start && ($start>$refresh || $start == -1)) ||
1878: ($end && $end<$update)) {
1879: $setprivs = 1;
1880: }
1881: }
1882: unless ($setprivs) {
1883: if (!exists($env{'user.priv.'.$env{'form.switchrole'}.'./'})) {
1884: $setprivs = 1;
1885: }
1886: }
1887: if ($setprivs) {
1888: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)(.*?)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1889: my $role = $1;
1890: my $custom_role = $2;
1891: my $usec = $3;
1892: if ($role eq 'cr') {
1893: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1894: $role .= $custom_role;
1895: } else {
1896: return;
1897: }
1898: }
1899: my (%userroles,%newrole,%newgroups,%group_privs);
1900: my %cgroups =
1901: &Apache::lonnet::get_active_groups($env{'user.domain'},
1902: $env{'user.name'},$cdom,$cnum);
1903: my $ccrole;
1904: if ($crstype eq 'Community') {
1905: $ccrole = 'co';
1906: } else {
1907: $ccrole = 'cc';
1908: }
1909: foreach my $group (keys(%cgroups)) {
1910: $group_privs{$group} =
1911: $env{'user.priv.'.$ccrole.'./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1912: }
1913: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1914: my $area = '/'.$cdom.'/'.$cnum;
1915: my $spec = $role.'.'.$area;
1916: if ($usec ne '') {
1917: $spec .= '/'.$usec;
1918: $area .= '/'.$usec;
1919: }
1920: if ($role =~ /^cr/) {
1921: &Apache::lonnet::custom_roleprivs(\%newrole,$role,$cdom,$cnum,$spec,$area);
1922: } else {
1923: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1924: }
1925: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1926: my $adhocstart = $refresh-1;
1927: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1928: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1929: }
1930: }
1931: }
1932: return;
1933: }
1934:
1935: sub check_forcc {
1936: my ($cdom,$cnum,$refresh,$update,$then,$crstype) = @_;
1937: my ($is_cc,$ccrole);
1938: if ($crstype eq 'Community') {
1939: $ccrole = 'co';
1940: } else {
1941: $ccrole = 'cc';
1942: }
1943: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1944: my $envkey = 'user.role.'.$ccrole.'./'.$cdom.'/'.$cnum;
1945: if (defined($env{$envkey})) {
1946: $is_cc = 1;
1947: my ($tstart,$tend)=split(/\./,$env{$envkey});
1948: my $limit = $update;
1949: if ($env{'request.role'} eq $ccrole.'./'.$cdom.'/'.$cnum) {
1950: $limit = $then;
1951: }
1952: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1953: if ($tend && $tend <$limit) { $is_cc = 0; }
1954: }
1955: }
1956: return $is_cc;
1957: }
1958:
1959: sub courselink {
1960: my ($roledom,$rowtype,$role) = @_;
1961: my $courseform=&Apache::loncommon::selectcourse_link
1962: ('rolechoice','course'.$rowtype.'_'.$roledom.'_'.$role,
1963: 'domain'.$rowtype.'_'.$roledom.'_'.$role,
1964: 'coursedesc'.$rowtype.'_'.$roledom.'_'.$role,
1965: $roledom.':'.$role,undef,'Course/Community');
1966: my $hiddenitems = '<input type="hidden" name="domain'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1967: '<input type="hidden" name="origdom'.$rowtype.'_'.$roledom.'_'.$role.'" value="'.$roledom.'" />'.
1968: '<input type="hidden" name="course'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />'.
1969: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$roledom.'_'.$role.'" value="" />';
1970: return $courseform.$hiddenitems;
1971: }
1972:
1973: sub coursepick_jscript {
1974: my %js_lt = &Apache::lonlocal::texthash(
1975: 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.",
1976: youc => 'You can only use this screen to select courses and communities in the current domain.',
1977: );
1978: &js_escape(\%js_lt);
1979: my $verify_script = <<"END";
1980: <script type="text/javascript">
1981: // <![CDATA[
1982: function verifyCoursePick(caller) {
1983: var numbutton = getIndex(caller)
1984: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1985: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1986: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1987: if (pickedCourse != '') {
1988: if (numbutton != -1) {
1989: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1990: document.rolechoice.elements[numbutton+1].name = courseTarget
1991: document.rolechoice.submit()
1992: }
1993: }
1994: else {
1995: alert("$js_lt{'plsu'}");
1996: }
1997: }
1998: else {
1999: alert("$js_lt{'youc'}")
2000: }
2001: }
2002: function getIndex(caller) {
2003: for (var i=0;i<document.rolechoice.elements.length;i++) {
2004: if (document.rolechoice.elements[i] == caller) {
2005: return i;
2006: }
2007: }
2008: return -1;
2009: }
2010: // ]]>
2011: </script>
2012: END
2013: return $verify_script;
2014: }
2015:
2016: sub coauthorlink {
2017: my ($dcdom,$rowtype) = @_;
2018: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
2019: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
2020: return $coauthorform.$hiddenitems;
2021: }
2022:
2023: sub display_cc_role {
2024: my $rolekey = shift;
2025: my ($roletext,$roletext_end);
2026: my $advanced = $env{'user.adv'};
2027: my $tryagain = $env{'form.tryagain'};
2028: unless ($rolekey =~/^error\:/) {
2029: if ($rolekey =~ m{^user\.role\.(cc|co)\./($match_domain)/($match_courseid)$}) {
2030: my $ccrole = $1;
2031: my $tdom = $2;
2032: my $trest = $3;
2033: my $tcourseid = $tdom.'_'.$trest;
2034: my $trolecode = $ccrole.'./'.$tdom.'/'.$trest;
2035: my $twhere;
2036: my $ttype;
2037: my $skipcal;
2038: my $tbg='LC_roles_is';
2039: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2040: if (%newhash) {
2041: $twhere=$newhash{'description'}.
2042: ' <span class="LC_fontsize_small">'.
2043: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
2044: '</span>';
2045: $ttype = $newhash{'type'};
2046: } else {
2047: $twhere=&mt('Currently not available');
2048: $env{'course.'.$tcourseid.'.description'}=$twhere;
2049: $skipcal = 1;
2050: }
2051: my $trole = &Apache::lonnet::plaintext($ccrole,$ttype,$tcourseid);
2052: $twhere.="<br />".&mt('Domain').":".$tdom;
2053: ($roletext,$roletext_end) = &build_roletext($trolecode,$tdom,$trest,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'','','',$skipcal);
2054: }
2055: }
2056: return ($roletext,$roletext_end);
2057: }
2058:
2059: sub adhoc_roles_row {
2060: my ($dcdom,$rowtype) = @_;
2061: my $output = &Apache::loncommon::continue_data_table_row()
2062: .' <td colspan="5" class="LC_textsize_mobile">'
2063: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
2064: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
2065: .' ';
2066: my $role = 'cc';
2067: my $selectcclink = &courselink($dcdom,$rowtype,$role);
2068: my $ccrole = &Apache::lonnet::plaintext('co',undef,undef,1);
2069: my $carole = &Apache::lonnet::plaintext('ca');
2070: my $selectcalink = &coauthorlink($dcdom,$rowtype);
2071: $output.=$ccrole.': '.$selectcclink
2072: .' | '.$carole.': '.$selectcalink.'</td>'
2073: .&Apache::loncommon::end_data_table_row();
2074: return $output;
2075: }
2076:
2077: sub adhoc_customroles_row {
2078: my ($role,$dhdom,$rowtype,$update,$then) = @_;
2079: my $liverole = 1;
2080: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$dhdom/"});
2081: my $limit = $update;
2082: if (($role eq 'dh') && ($env{'request.role'} eq 'dh./'.$dhdom.'/')) {
2083: $limit = $then;
2084: }
2085: if ($tstart && $tstart>$limit) { $liverole = 0; }
2086: if ($tend && $tend <$limit) { $liverole = 0; }
2087: return unless ($liverole);
2088: my %domdefaults = &Apache::lonnet::get_domain_defaults($dhdom);
2089: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
2090: if (scalar(keys(%{$domdefaults{'adhocroles'}})) > 0) {
2091: return &Apache::loncommon::continue_data_table_row()
2092: .' <td colspan="5" class="LC_textsize_mobile">'
2093: .&mt('[_1]Ad hoc[_2] course/community roles in domain [_3] --',
2094: '<span class="LC_cusr_emph">','</span>',$dhdom)
2095: .' '.&courselink($dhdom,$rowtype,$role);
2096: }
2097: }
2098: return;
2099: }
2100:
2101: sub recent_filename {
2102: my $area=shift;
2103: return 'nohist_recent_'.&escape($area);
2104: }
2105:
2106: sub courseloadpage {
2107: my ($courseid) = @_;
2108: my $startpage;
2109: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
2110: [$courseid.':courseinit']);
2111: my ($tmp) = %entry_settings;
2112: unless ($tmp =~ /^error: 2 /) {
2113: $startpage = $entry_settings{$courseid.':courseinit'};
2114: }
2115: if ($startpage eq '') {
2116: if (exists($env{'environment.course_init_display'})) {
2117: $startpage = $env{'environment.course_init_display'};
2118: }
2119: }
2120: return $startpage;
2121: }
2122:
2123: sub update_session_roles {
2124: my $then=$env{'user.login.time'};
2125: my $refresh=$env{'user.refresh.time'};
2126: if (!$refresh) {
2127: $refresh = $then;
2128: }
2129: my $update = $env{'user.update.time'};
2130: if (!$update) {
2131: $update = $then;
2132: }
2133: my $now = time;
2134: my %roleshash =
2135: &Apache::lonnet::get_my_roles('','','userroles',
2136: ['active','future','previous'],
2137: undef,undef,1);
2138: my ($msg,@newsec,$oldsec,$currrole_expired,@changed_roles,
2139: %changed_groups,%dbroles,%deletedroles,%allroles,%allgroups,
2140: %userroles,%checkedgroup,%crprivs,$hasgroups,%rolechange,
2141: %groupchange,%newrole,%newgroup,%customprivchg,%groups_roles,
2142: @rolecodes);
2143: my @possroles = ('cr','st','ta','ad','ep','in','co','cc');
2144: my %courseroles;
2145: foreach my $item (keys(%roleshash)) {
2146: my ($uname,$udom,$role,$remainder) = split(/:/,$item,4);
2147: my ($tstart,$tend) = split(/:/,$roleshash{$item});
2148: my ($section,$group,@group_privs);
2149: if ($role =~ m{^gr/(\w*)$}) {
2150: $role = 'gr';
2151: my $priv = $1;
2152: next if ($tstart eq '-1');
2153: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2154: if ($priv ne '') {
2155: push(@group_privs,$priv);
2156: }
2157: }
2158: if ($remainder =~ /:/) {
2159: (my $additional_privs,$group) =
2160: ($remainder =~ /^([\w:]+):([^:]+)$/);
2161: if ($additional_privs ne '') {
2162: if (&curr_role_status($tstart,$tend,$refresh,$now) eq 'active') {
2163: push(@group_privs,split(/:/,$additional_privs));
2164: @group_privs = sort(@group_privs);
2165: }
2166: }
2167: } else {
2168: $group = $remainder;
2169: }
2170: } else {
2171: $section = $remainder;
2172: }
2173: my $where = "/$udom/$uname";
2174: if ($section ne '') {
2175: $where .= "/$section";
2176: } elsif ($group ne '') {
2177: $where .= "/$group";
2178: }
2179: my $rolekey = "$role.$where";
2180: my $envkey = "user.role.$rolekey";
2181: $dbroles{$envkey} = 1;
2182: if (($env{'request.role'} eq $rolekey) && ($role ne 'st')) {
2183: if (&curr_role_status($tstart,$tend,$refresh,$now) ne 'active') {
2184: $currrole_expired = 1;
2185: }
2186: }
2187: if ($env{$envkey} eq '') {
2188: my $status_in_db =
2189: &curr_role_status($tstart,$tend,$now,$now);
2190: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2191: if (($role eq 'st') && ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2192: if ($status_in_db eq 'active') {
2193: if ($section eq '') {
2194: push(@newsec,'none');
2195: } else {
2196: push(@newsec,$section);
2197: }
2198: }
2199: } else {
2200: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2201: push(@changed_roles,$role);
2202: }
2203: if ($status_in_db ne 'previous') {
2204: if ($role eq 'gr') {
2205: $newgroup{$rolekey} = $status_in_db;
2206: if ($status_in_db eq 'active') {
2207: unless (ref($courseroles{$udom}) eq 'HASH') {
2208: %{$courseroles{$udom}} =
2209: &Apache::lonnet::get_my_roles('','','userroles',
2210: ['active'],\@possroles,
2211: [$udom],1);
2212: }
2213: &Apache::lonnet::get_groups_roles($udom,$uname,
2214: $courseroles{$udom},
2215: \@rolecodes,\%groups_roles);
2216: }
2217: } else {
2218: $newrole{$rolekey} = $status_in_db;
2219: }
2220: }
2221: }
2222: } else {
2223: my ($currstart,$currend) = split(/\./,$env{$envkey});
2224: if ($role eq 'gr') {
2225: if (&curr_role_status($currstart,$currend,$refresh,$update) ne 'previous') {
2226: $hasgroups = 1;
2227: }
2228: }
2229: if (($currstart ne $tstart) || ($currend ne $tend)) {
2230: my $status_in_env =
2231: &curr_role_status($currstart,$currend,$refresh,$update);
2232: my $status_in_db =
2233: &curr_role_status($tstart,$tend,$now,$now);
2234: if ($status_in_env ne $status_in_db) {
2235: if ($status_in_env eq 'active') {
2236: if ($role eq 'st') {
2237: if ($env{'request.role'} eq $rolekey) {
2238: my $switchsection;
2239: unless (ref($courseroles{$udom}) eq 'HASH') {
2240: %{$courseroles{$udom}} =
2241: &Apache::lonnet::get_my_roles('','','userroles',
2242: ['active'],
2243: \@possroles,[$udom],1);
2244: }
2245: foreach my $crsrole (keys(%{$courseroles{$udom}})) {
2246: if ($crsrole =~ /^\Q$uname\E:\Q$udom\E:st/) {
2247: $switchsection = 1;
2248: last;
2249: }
2250: }
2251: if ($switchsection) {
2252: if ($section eq '') {
2253: $oldsec = 'none';
2254: } else {
2255: $oldsec = $section;
2256: }
2257: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2258: } else {
2259: $currrole_expired = 1;
2260: next;
2261: }
2262: }
2263: }
2264: unless ($rolekey eq $env{'request.role'}) {
2265: if ($role eq 'gr') {
2266: &Apache::lonnet::delete_env_groupprivs($where,\%courseroles,\@possroles);
2267: } else {
2268: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2269: &Apache::lonnet::delenv("user.priv.cm.$where",undef,['cm']);
2270: }
2271: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2272: }
2273: } elsif ($status_in_db eq 'active') {
2274: if (($role eq 'st') &&
2275: ($env{'request.role'} =~ m{^\Q$role\E\.\Q/$udom/$uname\E})) {
2276: if ($section eq '') {
2277: push(@newsec,'none');
2278: } else {
2279: push(@newsec,$section);
2280: }
2281: } elsif ($role eq 'gr') {
2282: unless (ref($courseroles{$udom}) eq 'HASH') {
2283: %{$courseroles{$udom}} =
2284: &Apache::lonnet::get_my_roles('','','userroles',
2285: ['active'],
2286: \@possroles,[$udom],1);
2287: }
2288: &Apache::lonnet::get_groups_roles($udom,$uname,
2289: $courseroles{$udom},
2290: \@rolecodes,\%groups_roles);
2291: }
2292: &gather_roleprivs(\%allroles,\%allgroups,\%userroles,$where,$role,$tstart,$tend,$status_in_db);
2293: }
2294: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2295: push(@changed_roles,$role);
2296: }
2297: if ($role eq 'gr') {
2298: $groupchange{"/$udom/$uname"}{$group} = $status_in_db;
2299: } else {
2300: $rolechange{$rolekey} = $status_in_db;
2301: }
2302: }
2303: } else {
2304: if ($role eq 'gr') {
2305: unless ($checkedgroup{$where}) {
2306: my $status_in_db =
2307: &curr_role_status($tstart,$tend,$refresh,$now);
2308: if ($tstart eq '-1') {
2309: $status_in_db = 'deleted';
2310: }
2311: unless (ref($courseroles{$udom}) eq 'HASH') {
2312: %{$courseroles{$udom}} =
2313: &Apache::lonnet::get_my_roles('','','userroles',
2314: ['active'],
2315: \@possroles,[$udom],1);
2316: }
2317: if (ref($courseroles{$udom}) eq 'HASH') {
2318: foreach my $item (keys(%{$courseroles{$udom}})) {
2319: next unless ($item =~ /^\Q$uname\E/);
2320: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
2321: my $area = '/'.$cdom.'/'.$cnum;
2322: if ($crssec ne '') {
2323: $area .= '/'.$crssec;
2324: }
2325: my $crsrolekey = $crsrole.'.'.$area;
2326: my $currprivs = $env{'user.priv.'.$crsrole.'.'.$area.'.'.$where};
2327: $currprivs =~ s/^://;
2328: $currprivs =~ s/\&F$//;
2329: my @curr_grp_privs = split(/\&F:/,$currprivs);
2330: @curr_grp_privs = sort(@curr_grp_privs);
2331: my @diffs;
2332: if (@group_privs > 0 || @curr_grp_privs > 0) {
2333: @diffs = &Apache::loncommon::compare_arrays(\@group_privs,\@curr_grp_privs);
2334: }
2335: if (@diffs == 0) {
2336: last;
2337: } else {
2338: unless(grep(/^\Qgr\E$/,@rolecodes)) {
2339: push(@rolecodes,'gr');
2340: }
2341: &gather_roleprivs(\%allroles,\%allgroups,
2342: \%userroles,$where,$role,
2343: $tstart,$tend,$status_in_db);
2344: if ($status_in_db eq 'active') {
2345: &Apache::lonnet::get_groups_roles($udom,$uname,
2346: $courseroles{$udom},
2347: \@rolecodes,\%groups_roles);
2348: }
2349: $changed_groups{$udom.'_'.$uname}{$group} = $status_in_db;
2350: last;
2351: }
2352: }
2353: }
2354: $checkedgroup{$where} = 1;
2355: }
2356: } elsif ($role =~ /^cr/) {
2357: my $status_in_db =
2358: &curr_role_status($tstart,$tend,$refresh,$now);
2359: my ($rdummy,$rest) = split(/\//,$role,2);
2360: my %currpriv;
2361: unless (exists($crprivs{$rest})) {
2362: my ($rdomain,$rauthor,$rrole)=split(/\//,$rest);
2363: my $homsvr=&Apache::lonnet::homeserver($rauthor,$rdomain);
2364: if (&Apache::lonnet::hostname($homsvr) ne '') {
2365: my ($rdummy,$roledef)=
2366: &Apache::lonnet::get('roles',["rolesdef_$rrole"],
2367: $rdomain,$rauthor);
2368: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2369: my $i = 0;
2370: my @scopes = ('sys','dom','crs');
2371: my @privs = split(/\_/,$roledef);
2372: foreach my $priv (@privs) {
2373: my ($blank,@prv) = split(/:/,$priv);
2374: @prv = map { $_ .= (/\&\w+$/ ? '':'&F') } @prv;
2375: if (@prv) {
2376: $priv = ':'.join(':',sort(@prv));
2377: }
2378: $crprivs{$rest}{$scopes[$i]} = $priv;
2379: $i++;
2380: }
2381: }
2382: }
2383: }
2384: my $status_in_env =
2385: &curr_role_status($currstart,$currend,$refresh,$update);
2386: if ($status_in_env eq 'active') {
2387: $currpriv{sys} = $env{"user.priv.$rolekey./"};
2388: $currpriv{dom} = $env{"user.priv.$rolekey./$udom/"};
2389: $currpriv{crs} = $env{"user.priv.$rolekey.$where"};
2390: if (keys(%crprivs)) {
2391: if (($crprivs{$rest}{sys} ne $currpriv{sys}) ||
2392: ($crprivs{$rest}{dom} ne $currpriv{dom})
2393: ||
2394: ($crprivs{$rest}{crs} ne $currpriv{crs})) {
2395: &gather_roleprivs(\%allroles,\%allgroups,
2396: \%userroles,$where,$role,
2397: $tstart,$tend,$status_in_db);
2398: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2399: push(@changed_roles,$role);
2400: }
2401: $customprivchg{$rolekey} = $status_in_env;
2402: }
2403: }
2404: }
2405: }
2406: }
2407: }
2408: }
2409: foreach my $envkey (keys(%env)) {
2410: next unless ($envkey =~ /^user\.role\./);
2411: next if ($dbroles{$envkey});
2412: next if ($envkey eq 'user.role.'.$env{'request.role'});
2413: my ($currstart,$currend) = split(/\./,$env{$envkey});
2414: my $status_in_env =
2415: &curr_role_status($currstart,$currend,$refresh,$update);
2416: my ($rolekey) = ($envkey =~ /^user\.role\.(.+)$/);
2417: my ($role,$rest)=split(m{\./},$rolekey,2);
2418: $rest = '/'.$rest;
2419: if (&Apache::lonnet::delenv($envkey,undef,[$role])) {
2420: if ($status_in_env eq 'active') {
2421: if ($role eq 'gr') {
2422: &Apache::lonnet::delete_env_groupprivs($rest,\%courseroles,
2423: \@possroles);
2424: } else {
2425: &Apache::lonnet::delenv("user.priv.$rolekey",undef,[$role]);
2426: &Apache::lonnet::delenv("user.priv.cm.$rest",undef,['cm']);
2427: }
2428: unless (grep(/^\Q$role\E$/,@changed_roles)) {
2429: push(@changed_roles,$role);
2430: }
2431: $deletedroles{$rolekey} = 1;
2432: }
2433: }
2434: }
2435: if (($oldsec) && (@newsec > 0)) {
2436: if (@newsec > 1) {
2437: $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>';
2438: } else {
2439: my $newrole = $env{'request.role'};
2440: if ($newsec[0] eq 'none') {
2441: $newrole =~ s{(/[^/])$}{};
2442: } elsif ($oldsec eq 'none') {
2443: $newrole .= '/'.$newsec[0];
2444: } else {
2445: $newrole =~ s{([^/]+)$}{$newsec[0]};
2446: }
2447: my $coursedesc = $env{'course.'.$env{'request.course.id'}.'.description'};
2448: my ($curr_role) = ($env{'request.role'} =~ m{^(\w+)\./$match_domain/$match_courseid});
2449: my %temp=('logout_'.$env{'request.course.id'} => time);
2450: &Apache::lonnet::put('email_status',\%temp);
2451: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
2452: &Apache::lonnet::appenv({"request.course.id" => '',
2453: "request.course.fn" => '',
2454: "request.course.uri" => '',
2455: "request.course.sec" => '',
2456: "request.role" => 'cm',
2457: "request.role.adv" => $env{'user.adv'},
2458: "request.role.domain" => $env{'user.domain'}});
2459: my $rolename = &Apache::loncommon::plainname($curr_role);
2460: $msg = '<p><form name="reselectrole" action="/adm/roles" method="post" />'.
2461: '<input type="hidden" name="newrole" value="" />'.
2462: '<input type="hidden" name="selectrole" value="1" />'.
2463: '<span class="LC_info">'.
2464: &mt('Your section has changed for your current [_1] role in [_2].',$rolename,$coursedesc).'</span><br />';
2465: my $button = '<input type="button" name="sectionchanged" value="'.
2466: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,'."'$newrole','sectionchanged'".')" />';
2467: if ($newsec[0] eq 'none') {
2468: $msg .= &mt('[_1] to continue with your new section-less role.',$button);
2469: } else {
2470: $msg .= &mt('[_1] to continue with your new role in section ([_2]).',$button,$newsec[0]);
2471: }
2472: $msg .= '</form></p>';
2473: }
2474: } elsif ($currrole_expired) {
2475: $msg .= '<p class="LC_warning">';
2476: if (&Apache::loncommon::show_course()) {
2477: $msg .= &mt('Your role in the current course has expired.');
2478: } else {
2479: $msg .= &mt('Your current role has expired.');
2480: }
2481: $msg .= '<br />'.&mt('However you can continue to use this role until you logout, click the "Re-Select" button, or your session has been idle for more than 24 hours.').'</p>';
2482: }
2483: &Apache::lonnet::set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
2484: my ($curr_is_adv,$curr_role_adv,$curr_author,$curr_role_author);
2485: $curr_author = $env{'user.author'};
2486: if (($env{'request.role'} =~/^au/) || ($env{'request.role'} =~/^ca/) ||
2487: ($env{'request.role'} =~/^aa/)) {
2488: $curr_role_author=1;
2489: }
2490: $curr_is_adv = $env{'user.adv'};
2491: $curr_role_adv = $env{'request.role.adv'};
2492: if (keys(%userroles) > 0) {
2493: foreach my $role (@changed_roles) {
2494: unless(grep(/^\Q$role\E$/,@rolecodes)) {
2495: push(@rolecodes,$role);
2496: }
2497: }
2498: unless(grep(/^\Qcm\E$/,@rolecodes)) {
2499: push(@rolecodes,'cm');
2500: }
2501: &Apache::lonnet::appenv(\%userroles,\@rolecodes);
2502: }
2503: my %newenv;
2504: if (&Apache::lonnet::is_advanced_user($env{'user.domain'},$env{'user.name'})) {
2505: unless ($curr_is_adv) {
2506: $newenv{'user.adv'} = 1;
2507: }
2508: } elsif ($curr_is_adv && !$curr_role_adv) {
2509: &Apache::lonnet::delenv('user.adv');
2510: }
2511: my %authorroleshash =
2512: &Apache::lonnet::get_my_roles('','','userroles',['active'],['au','ca','aa']);
2513: if (keys(%authorroleshash)) {
2514: unless ($curr_author) {
2515: $newenv{'user.author'} = 1;
2516: }
2517: } elsif ($curr_author && !$curr_role_author) {
2518: &Apache::lonnet::delenv('user.author');
2519: }
2520: if ($env{'request.course.id'}) {
2521: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2522: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2523: my (@activecrsgroups,$crsgroupschanged);
2524: if ($env{'request.course.groups'}) {
2525: @activecrsgroups = split(/:/,$env{'request.course.groups'});
2526: foreach my $item (keys(%deletedroles)) {
2527: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2528: if (grep(/^\Q$1\E$/,@activecrsgroups)) {
2529: $crsgroupschanged = 1;
2530: last;
2531: }
2532: }
2533: }
2534: }
2535: unless ($crsgroupschanged) {
2536: foreach my $item (keys(%newgroup)) {
2537: if ($item =~ m{^gr\./\Q$cdom\E/\Q$cnum\E/(\w+)$}) {
2538: if ($newgroup{$item} eq 'active') {
2539: $crsgroupschanged = 1;
2540: last;
2541: }
2542: }
2543: }
2544: }
2545: if ((ref($changed_groups{$env{'request.course.id'}}) eq 'HASH') ||
2546: (ref($groupchange{"/$cdom/$cnum"}) eq 'HASH') ||
2547: ($crsgroupschanged)) {
2548: my %grouproles = &Apache::lonnet::get_my_roles('','','userroles',
2549: ['active'],['gr'],[$cdom],1);
2550: my @activegroups;
2551: foreach my $item (keys(%grouproles)) {
2552: next unless($item =~ /^\Q$cnum\E:\Q$cdom\E/);
2553: my $group;
2554: my ($crsn,$crsd,$role,$remainder) = split(/:/,$item,4);
2555: if ($remainder =~ /:/) {
2556: (my $other,$group) = ($remainder =~ /^([\w:]+):([^:]+)$/);
2557: } else {
2558: $group = $remainder;
2559: }
2560: if ($group ne '') {
2561: push(@activegroups,$group);
2562: }
2563: }
2564: $newenv{'request.course.groups'} = join(':',@activegroups);
2565: }
2566: }
2567: if (keys(%newenv)) {
2568: &Apache::lonnet::appenv(\%newenv);
2569: }
2570: if (!@changed_roles || !(keys(%changed_groups))) {
2571: my ($rolesmsg,$groupsmsg);
2572: if (!@changed_roles) {
2573: if (&Apache::loncommon::show_course()) {
2574: $rolesmsg = &mt('No new courses or communities');
2575: } else {
2576: $rolesmsg = &mt('No role changes');
2577: }
2578: }
2579: if ($hasgroups && !(keys(%changed_groups)) && !(grep(/gr/,@changed_roles))) {
2580: $groupsmsg = &mt('No changes in course/community groups');
2581: }
2582: if (!@changed_roles && !(keys(%changed_groups))) {
2583: if (($msg ne '') || ($groupsmsg ne '')) {
2584: $msg .= '<ul>';
2585: if ($rolesmsg) {
2586: $msg .= '<li>'.$rolesmsg.'</li>';
2587: }
2588: if ($groupsmsg) {
2589: $msg .= '<li>'.$groupsmsg.'</li>';
2590: }
2591: $msg .= '</ul>';
2592: } else {
2593: $msg = ' <span class="LC_cusr_emph">'.$rolesmsg.'</span><br />';
2594: }
2595: return $msg;
2596: }
2597: }
2598: my $changemsg;
2599: if (@changed_roles > 0) {
2600: if (keys(%newgroup) > 0) {
2601: my $groupmsg;
2602: my (%curr_groups,%groupdescs,$currcrs);
2603: foreach my $item (sort(keys(%newgroup))) {
2604: if (&is_active_course($item,$refresh,$update,\%roleshash)) {
2605: if ($item =~ m{^gr\./($match_domain/$match_courseid)/(\w+)$}) {
2606: my ($cdom,$cnum) = split(/\//,$1);
2607: my $group = $2;
2608: if ($currcrs ne $cdom.'_'.$cnum) {
2609: if ($currcrs) {
2610: $groupmsg .= '</ul><li>';
2611: }
2612: $groupmsg .= '<li><b>'.
2613: $env{'course.'.$cdom.'_'.$cnum.'.description'}.'</b><ul>';
2614: $currcrs = $cdom.'_'.$cnum;
2615: }
2616: my $groupdesc;
2617: unless (ref($curr_groups{$cdom.'_'.$cnum}) eq 'HASH') {
2618: %{$curr_groups{$cdom.'_'.$cnum}} =
2619: &Apache::longroup::coursegroups($cdom,$cnum);
2620: }
2621: unless ((ref($groupdescs{$cdom.'_'.$cnum}) eq 'HASH') &&
2622: ($groupdescs{$cdom.'_'.$cnum}{$group})) {
2623:
2624: my %groupinfo =
2625: &Apache::longroup::get_group_settings($curr_groups{$cdom.'_'.$cnum}{$group});
2626: $groupdescs{$cdom.'_'.$cnum}{$group} =
2627: &unescape($groupinfo{'description'});
2628: }
2629: $groupdesc = $groupdescs{$cdom.'_'.$cnum}{$group};
2630: if ($groupdesc) {
2631: $groupmsg .= '<li>'.
2632: &mt('[_1] with status: [_2].',
2633: '<b>'.$groupdesc.'</b>',$newgroup{$item}).'</li>';
2634: }
2635: }
2636: }
2637: if ($groupmsg) {
2638: $groupmsg .= '</ul></li>';
2639: }
2640: }
2641: if ($groupmsg) {
2642: $changemsg .= '<li>'.
2643: &mt('Courses with new groups').'</li>'.
2644: '<ul>'.$groupmsg.'</ul></li>';
2645: }
2646: }
2647: if (keys(%newrole) > 0) {
2648: my $newmsg;
2649: foreach my $item (sort(keys(%newrole))) {
2650: my $desc = &role_desc($item,$update,$refresh,$now);
2651: if ($desc) {
2652: $newmsg .= '<li>'.
2653: &mt('[_1] with status: [_2].',
2654: $desc,&mt($newrole{$item})).'</li>';
2655: }
2656: }
2657: if ($newmsg) {
2658: $changemsg .= '<li>'.&mt('New roles').
2659: '<ul>'.$newmsg.'</ul>'.
2660: '</li>';
2661: }
2662: }
2663: if (keys(%customprivchg) > 0) {
2664: my $privmsg;
2665: foreach my $item (sort(keys(%customprivchg))) {
2666: my $desc = &role_desc($item,$update,$refresh,$now);
2667: if ($desc) {
2668: $privmsg .= '<li>'.$desc.'</li>';
2669: }
2670: }
2671: if ($privmsg) {
2672: $changemsg .= '<li>'.
2673: &mt('Custom roles with privilege changes').
2674: '<ul>'.$privmsg.'</ul>'.
2675: '</li>';
2676: }
2677: }
2678: if (keys(%rolechange) > 0) {
2679: my $rolemsg;
2680: foreach my $item (sort(keys(%rolechange))) {
2681: my $desc = &role_desc($item,$update,$refresh,$now);
2682: if ($desc) {
2683: $rolemsg .= '<li>'.
2684: &mt('[_1] status now: [_2].',$desc,
2685: $rolechange{$item}).'</li>';
2686: }
2687: }
2688: if ($rolemsg) {
2689: $changemsg .= '<li>'.
2690: &mt('Existing roles with status changes').'</li>'.
2691: '<ul>'.$rolemsg.'</ul>'.
2692: '</li>';
2693: }
2694: }
2695: if (keys(%deletedroles) > 0) {
2696: my $delmsg;
2697: foreach my $item (sort(keys(%deletedroles))) {
2698: my $desc = &role_desc($item,$update,$refresh,$now);
2699: if ($desc) {
2700: $delmsg .= '<li>'.$desc.'</li>';
2701: }
2702: }
2703: if ($delmsg) {
2704: $changemsg .= '<li>'.
2705: &mt('Existing roles now expired').'</li>'.
2706: '<ul>'.$delmsg.'</ul>'.
2707: '</li>';
2708: }
2709: }
2710: }
2711: if ((keys(%changed_groups) > 0) || (keys(%groupchange) > 0)) {
2712: my $groupchgmsg;
2713: foreach my $key (sort(keys(%changed_groups))) {
2714: my $crs = 'gr/'.$key;
2715: $crs =~ s/_/\//;
2716: if (&is_active_course($crs,$refresh,$update,\%roleshash)) {
2717: if (ref($changed_groups{$key}) eq 'HASH') {
2718: my @showgroups;
2719: foreach my $group (sort(keys(%{$changed_groups{$key}}))) {
2720: if ($changed_groups{$key}{$group} eq 'active') {
2721: push(@showgroups,$group);
2722: }
2723: }
2724: if (@showgroups > 0) {
2725: $groupchgmsg .= '<li>'.
2726: &mt('Course: [_1], groups: [_2].',$key,
2727: join(', ',@showgroups)).
2728: '</li>';
2729: }
2730: }
2731: }
2732: }
2733: if (keys(%groupchange) > 0) {
2734: $groupchgmsg .= '<li>'.
2735: &mt('Existing course/community groups with status changes').'</li>'.
2736: '<ul>';
2737: foreach my $crs (sort(keys(%groupchange))) {
2738: my $cid = $crs;
2739: $cid=~s{^/}{};
2740: $cid=~s{/}{_};
2741: my $crsdesc = $env{'course.'.$cid.'.description'};
2742: my $cdom = $env{'course.'.$cid.'.domain'};
2743: my $cnum = $env{'course.'.$cid.'.num'};
2744: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2745: my %groupdesc;
2746: if (ref($groupchange{$crs}) eq 'HASH') {
2747: $groupchgmsg .= '<li>'.&mt('Course/Community: [_1]','<b>'.$crsdesc.'</b><ul>');
2748: foreach my $group (sort(keys(%{$groupchange{$crs}}))) {
2749: unless ($groupdesc{$group}) {
2750: my %groupinfo = &Apache::longroup::get_group_settings($curr_groups{$group});
2751: $groupdesc{$group} = &unescape($groupinfo{'description'});
2752: }
2753: $groupchgmsg .= '<li>'.&mt('Group: [_1] status now: [_2].','<b>'.$groupdesc{$group}.'</b>',$groupchange{$crs}{$group}).'</li>';
2754: }
2755: $groupchgmsg .= '</ul></li>';
2756: }
2757: }
2758: $groupchgmsg .= '</ul></li>';
2759: }
2760: if ($groupchgmsg) {
2761: $changemsg .= '<li>'.
2762: &mt('Courses with changes in groups').'</li>'.
2763: '<ul>'.$groupchgmsg.'</ul></li>';
2764: }
2765: }
2766: if ($changemsg) {
2767: $msg .= '<ul>'.$changemsg.'</ul>';
2768: } else {
2769: if (&Apache::loncommon::show_course()) {
2770: $msg = &mt('No new courses or communities');
2771: } else {
2772: $msg = &mt('No role changes');
2773: }
2774: }
2775: return $msg;
2776: }
2777:
2778: sub role_desc {
2779: my ($item,$update,$refresh,$now) = @_;
2780: my ($where,$trolecode,$role,$tstatus,$tend,$tstart,$twhere,
2781: $trole,$tremark);
2782: &Apache::lonnet::role_status('user.role.'.$item,$update,$refresh,
2783: $now,\$role,\$where,\$trolecode,
2784: \$tstatus,\$tstart,\$tend);
2785: return unless ($role);
2786: if ($role =~ /^cr\//) {
2787: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
2788: $tremark = &mt('Custom role defined by [_1].',$rauthor.':'.$rdomain);
2789: }
2790: $trole=Apache::lonnet::plaintext($role);
2791: my ($tdom,$trest,$tsection)=
2792: split(/\//,Apache::lonnet::declutter($where));
2793: if (($role eq 'ca') || ($role eq 'aa')) {
2794: my $home = &Apache::lonnet::homeserver($trest,$tdom);
2795: $home = &Apache::lonnet::hostname($home);
2796: $twhere=&mt('User').': '.$trest.' '.&mt('Domain').
2797: ': '.$tdom.' '.&mt('Server').': '.$home;
2798: } elsif ($role eq 'au') {
2799: my $home = &Apache::lonnet::homeserver
2800: ($env{'user.name'},$env{'user.domain'});
2801: $home = &Apache::lonnet::hostname($home);
2802: $twhere=&mt('Domain').': '.$tdom.' '.&mt('Server').
2803: ': '.$home;
2804: } elsif ($trest) {
2805: my $tcourseid=$tdom.'_'.$trest;
2806: my $crstype = &Apache::loncommon::course_type($tcourseid);
2807: $trole = &Apache::lonnet::plaintext($role,$crstype,$tcourseid);
2808: if ($env{'course.'.$tcourseid.'.description'}) {
2809: $twhere=$env{'course.'.$tcourseid.'.description'};
2810: } else {
2811: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
2812: if (%newhash) {
2813: $twhere=$newhash{'description'};
2814: } else {
2815: $twhere=&mt('Currently not available');
2816: }
2817: }
2818: if ($tsection) {
2819: $twhere.= ' '.&mt('Section').': '.$tsection;
2820: }
2821: if ($role ne 'st') {
2822: $twhere.= ' '.&mt('Domain').': '.$tdom;
2823: }
2824: } elsif ($tdom) {
2825: $twhere = &mt('Domain').': '.$tdom;
2826: }
2827: my $output;
2828: if ($trole) {
2829: $output = $trole;
2830: if ($twhere) {
2831: $output .= " -- $twhere";
2832: }
2833: if ($tremark) {
2834: $output .= '<br />'.$tremark;
2835: }
2836: }
2837: return $output;
2838: }
2839:
2840: sub curr_role_status {
2841: my ($start,$end,$refresh,$update) = @_;
2842: if (($start) && ($start<0)) { return 'deleted' };
2843: my $status = 'active';
2844: if (($end) && ($end<=$update)) {
2845: $status = 'previous';
2846: }
2847: if (($start) && ($refresh<$start)) {
2848: $status = 'future';
2849: }
2850: return $status;
2851: }
2852:
2853: sub gather_roleprivs {
2854: my ($allroles,$allgroups,$userroles,$area,$role,$tstart,$tend,$status) = @_;
2855: return unless ((ref($allroles) eq 'HASH') && (ref($allgroups) eq 'HASH') && (ref($userroles) eq 'HASH'));
2856: if (($area ne '') && ($role ne '')) {
2857: &Apache::lonnet::userrolelog($role,$env{'user.name'},$env{'user.domain'},
2858: $area,$tstart,$tend);
2859: my $spec=$role.'.'.$area;
2860: $userroles->{'user.role.'.$spec} = $tstart.'.'.$tend;
2861: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2862: if ($status eq 'active') {
2863: if ($role =~ /^cr\//) {
2864: &Apache::lonnet::custom_roleprivs($allroles,$role,$tdomain,$trest,$spec,$area);
2865: } elsif ($role eq 'gr') {
2866: my %rolehash = &Apache::lonnet::get('roles',[$area.'_'.$role],
2867: $env{'user.domain'},
2868: $env{'user.name'});
2869: my ($trole) = split(/_/,$rolehash{$area.'_'.$role},2);
2870: (undef,my $group_privs) = split(/\//,$trole);
2871: $group_privs = &unescape($group_privs);
2872: &Apache::lonnet::group_roleprivs($allgroups,$area,$group_privs,$tend,$tstart);
2873: } else {
2874: &Apache::lonnet::standard_roleprivs($allroles,$role,$tdomain,$spec,$trest,$area);
2875: }
2876: }
2877: }
2878: return;
2879: }
2880:
2881: sub is_active_course {
2882: my ($rolekey,$refresh,$update,$roleshashref) = @_;
2883: return unless(ref($roleshashref) eq 'HASH');
2884: my ($role,$cdom,$cnum) = split(/\//,$rolekey);
2885: my $is_active;
2886: foreach my $key (keys(%{$roleshashref})) {
2887: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:/) {
2888: my ($tstart,$tend) = split(/:/,$roleshashref->{$key});
2889: my $status = &curr_role_status($tstart,$tend,$refresh,$update);
2890: if ($status eq 'active') {
2891: $is_active = 1;
2892: last;
2893: }
2894: }
2895: }
2896: return $is_active;
2897: }
2898:
2899: sub get_roles_functions {
2900: my ($rolescount,$cattype) = @_;
2901: my @links;
2902: push(@links,["javascript:rolesView('doupdate');",'start-here-22x22',&mt('Check for changes')]);
2903: if ($env{'environment.canrequest.author'}) {
2904: unless (&Apache::loncoursequeueadmin::is_active_author()) {
2905: push(@links,["javascript:rolesView('requestauthor');",'list-add-22x22',&mt('Request author role')]);
2906: }
2907: }
2908: if (($rolescount > 3) || ($env{'environment.recentroles'})) {
2909: push(@links,['/adm/preferences?action=changerolespref&returnurl=/adm/roles','role_hotlist-22x22',&mt('Hotlist')]);
2910: }
2911: if (&Apache::lonmenu::check_for_rcrs()) {
2912: push(@links,['/adm/requestcourse','rcrs-22x22',&mt('Request course')]);
2913: }
2914: if ($env{'form.state'} eq 'queued') {
2915: push(@links,["javascript:rolesView('noqueued');",'selfenrl-queue-22x22',&mt('Hide queued')]);
2916: } else {
2917: push(@links,["javascript:rolesView('queued');",'selfenrl-queue-22x22',&mt('Show queued')]);
2918: }
2919: if ($env{'user.adv'}) {
2920: if ($env{'form.display'} eq 'showall') {
2921: push(@links,["javascript:rolesView('noshowall');",'edit-redo-22x22',&mt('Exclude expired')]);
2922: } else {
2923: push(@links,["javascript:rolesView('showall');",'edit-undo-22x22',&mt('Include expired')]);
2924: }
2925: }
2926: unless ($cattype eq 'none') {
2927: push(@links,['/adm/coursecatalog','ccat-22x22',&mt('Course catalog')]);
2928: }
2929: my $funcs;
2930: if ($env{'browser.mobile'}) {
2931: my @functions;
2932: foreach my $link (@links) {
2933: push(@functions,[$link->[0],$link->[2]]);
2934: }
2935: my $title = 'Display options';
2936: if ($env{'user.adv'}) {
2937: $title = 'Roles options';
2938: }
2939: $funcs = &Apache::lonmenu::create_submenu('','',$title,\@functions,1,'LC_breadcrumbs_hoverable');
2940: $funcs = '<ol class="LC_primary_menu LC_floatright">'.$funcs.'</ol>';
2941: } else {
2942: $funcs = &Apache::lonhtmlcommon::start_funclist();
2943: foreach my $link (@links) {
2944: $funcs .= &Apache::lonhtmlcommon::add_item_funclist(
2945: '<a href="'.$link->[0].'" class="LC_menubuttons_link">'.
2946: '<img src="/res/adm/pages/'.$link->[1].'.png" class="LC_icon" alt="'.$link->[2].'" />'.
2947: $link->[2].'</a>');
2948: }
2949: $funcs .= &Apache::lonhtmlcommon::end_funclist();
2950: $funcs = &Apache::loncommon::head_subbox($funcs);
2951: }
2952: return $funcs;
2953: }
2954:
2955: sub get_queued {
2956: my ($output,%reqcrs);
2957: my ($types,$typenames) = &Apache::loncommon::course_types();
2958: my %statusinfo = &Apache::lonnet::dump('courserequests',$env{'user.domain'},
2959: $env{'user.name'},'^status:');
2960: foreach my $key (keys(%statusinfo)) {
2961: next unless (($statusinfo{$key} eq 'approval') || ($statusinfo{$key} eq 'pending'));
2962: (undef,my($cdom,$cnum)) = split(/:/,$key);
2963: my $requestkey = $cdom.'_'.$cnum;
2964: if ($requestkey =~ /^($match_domain)_($match_courseid)$/) {
2965: my %history = &Apache::lonnet::restore($requestkey,'courserequests',
2966: $env{'user.domain'},$env{'user.name'});
2967: next if ((exists($history{'status'})) && ($history{'status'} eq 'created'));
2968: my $reqtime = $history{'reqtime'};
2969: my $lastupdate = $history{'timestamp'};
2970: my $showtype = $history{'crstype'};
2971: if (defined($typenames->{$history{'crstype'}})) {
2972: $showtype = $typenames->{$history{'crstype'}};
2973: }
2974: my $description;
2975: if (ref($history{'details'}) eq 'HASH') {
2976: $description = $history{details}{'cdescr'};
2977: }
2978: @{$reqcrs{$reqtime}} = ($description,$showtype);
2979: }
2980: }
2981: my @sortedtimes = sort {$a <=> $b} (keys(%reqcrs));
2982: if (@sortedtimes > 0) {
2983: $output .= '<p><b>'.&mt('Course/Community requests').'</b><br />'.
2984: &Apache::loncommon::start_data_table().
2985: &Apache::loncommon::start_data_table_header_row().
2986: '<th>'.&mt('Date requested').'</th>'.
2987: '<th>'.&mt('Course title').'</th>'.
2988: '<th>'.&mt('Course type').'</th>';
2989: &Apache::loncommon::end_data_table_header_row();
2990: foreach my $reqtime (@sortedtimes) {
2991: next unless (ref($reqcrs{$reqtime}) eq 'ARRAY');
2992: $output .= &Apache::loncommon::start_data_table_row().
2993: '<td>'.&Apache::lonlocal::locallocaltime($reqtime).'</td>'.
2994: '<td>'.join('</td><td>',@{$reqcrs{$reqtime}}).'</td>'.
2995: &Apache::loncommon::end_data_table_row();
2996: }
2997: $output .= &Apache::loncommon::end_data_table().
2998: '<br /></p>';
2999: }
3000: my $queuedselfenroll = &Apache::loncoursequeueadmin::queued_selfenrollment(1);
3001: if ($queuedselfenroll) {
3002: $output .= '<p><b>'.&mt('Enrollment requests').'</b><br />'.
3003: $queuedselfenroll.'<br /></p>';
3004: }
3005: if ($env{'environment.canrequest.author'}) {
3006: unless (&Apache::loncoursequeueadmin::is_active_author()) {
3007: my $requestauthor;
3008: my ($status,$timestamp) = split(/:/,$env{'environment.requestauthorqueued'});
3009: if (($status eq 'approval') || ($status eq 'approved')) {
3010: $output .= '<p><b>'.&mt('Author role request').'</b><br />';
3011: if ($status eq 'approval') {
3012: $output .= &mt('A request for Authoring Space submitted on [_1] is awaiting approval',
3013: &Apache::lonlocal::locallocaltime($timestamp));
3014: } elsif ($status eq 'approved') {
3015: my %roleshash =
3016: &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',
3017: ['active'],['au'],[$env{'user.domain'}]);
3018: if (keys(%roleshash)) {
3019: $output .= '<span class="LC_info">'.
3020: &mt('Your request for an author role has been approved.').'<br />'.
3021: &mt('Use the "Check for changes" link to update your list of roles.').
3022: '</span>';
3023: }
3024: }
3025: $output .= '</p>';
3026: }
3027: }
3028: }
3029: unless ($output) {
3030: if ($env{'environment.canrequest.author'} || $env{'environment.canrequest.official'} ||
3031: $env{'environment.canrequest.unofficial'} || $env{'environment.canrequest.community'}) {
3032: $output = &mt('No requests for courses, communities or authoring currently queued');
3033: } else {
3034: $output = &mt('No enrollment requests currently queued awaiting approval');
3035: }
3036: }
3037: return '<div class="LC_left_float"><fieldset><legend>'.&mt('Queued requests').'</legend>'.
3038: $output.'</fieldset></div><br clear="all" />';
3039: }
3040:
3041: 1;
3042: __END__
3043:
3044: =head1 NAME
3045:
3046: Apache::lonroles - User Roles Screen
3047:
3048: =head1 SYNOPSIS
3049:
3050: Invoked by /etc/httpd/conf/srm.conf:
3051:
3052: <Location /adm/roles>
3053: PerlAccessHandler Apache::lonacc
3054: SetHandler perl-script
3055: PerlHandler Apache::lonroles
3056: ErrorDocument 403 /adm/login
3057: ErrorDocument 500 /adm/errorhandler
3058: </Location>
3059:
3060: =head1 OVERVIEW
3061:
3062: =head2 Choosing Roles
3063:
3064: C<lonroles> is a handler that allows a user to switch roles in
3065: mid-session. LON-CAPA attempts to work with "No Role Specified", the
3066: default role that a user has before selecting a role, as widely as
3067: possible, but certain handlers for example need specification which
3068: course they should act on, etc. Both in this scenario, and when the
3069: handler determines via C<lonnet>'s C<&allowed> function that a certain
3070: action is not allowed, C<lonroles> is used as error handler. This
3071: allows the user to select another role which may have permission to do
3072: what they were trying to do.
3073:
3074: =begin latex
3075:
3076: \begin{figure}
3077: \begin{center}
3078: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
3079: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
3080: \end{center}
3081: \end{figure}
3082:
3083: =end latex
3084:
3085: =head2 Role Initialization
3086:
3087: 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.
3088:
3089: =head1 INTRODUCTION
3090:
3091: This module enables a user to select what role he wishes to
3092: operate under (instructor, student, teaching assistant, course
3093: coordinator, etc). These roles are pre-established by the actions
3094: of upper-level users.
3095:
3096: This is part of the LearningOnline Network with CAPA project
3097: described at http://www.lon-capa.org.
3098:
3099: =head1 HANDLER SUBROUTINE
3100:
3101: This routine is called by Apache and mod_perl.
3102:
3103: =over 4
3104:
3105: =item *
3106:
3107: Roles Initialization (yes/no)
3108:
3109: =item *
3110:
3111: Get Error Message from Environment
3112:
3113: =item *
3114:
3115: Who is this?
3116:
3117: =item *
3118:
3119: Generate Page Output
3120:
3121: =item *
3122:
3123: Choice or no choice
3124:
3125: =item *
3126:
3127: Table
3128:
3129: =item *
3130:
3131: Privileges
3132:
3133: =back
3134:
3135: =cut
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