Annotation of loncom/auth/lonroles.pm, revision 1.219
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.219 ! raeburn 4: # $Id: lonroles.pm,v 1.218 2009/04/11 21:42:58 raeburn Exp $
1.31 www 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: #
1.32 harris41 28: ###
1.22 harris41 29:
1.210 jms 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. C<lonroles> can also be accessed via the
61: B<CRS> button in the Remote Control.
62:
63: =begin latex
64:
65: \begin{figure}
66: \begin{center}
67: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
68: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
69: \end{center}
70: \end{figure}
71:
72: =end latex
73:
74: =head2 Role Initialization
75:
76: 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.
77:
78: =head1 INTRODUCTION
79:
80: This module enables a user to select what role he wishes to
81: operate under (instructor, student, teaching assistant, course
82: coordinator, etc). These roles are pre-established by the actions
83: of upper-level users.
84:
85: This is part of the LearningOnline Network with CAPA project
86: described at http://www.lon-capa.org.
87:
88: =head1 HANDLER SUBROUTINE
89:
90: This routine is called by Apache and mod_perl.
91:
92: =over 4
93:
94: =item *
95:
96: Roles Initialization (yes/no)
97:
98: =item *
99:
100: Get Error Message from Environment
101:
102: =item *
103:
104: Who is this?
105:
106: =item *
107:
108: Generate Page Output
109:
110: =item *
111:
112: Choice or no choice
113:
114: =item *
115:
116: Table
117:
118: =item *
119:
120: Privileges
121:
122: =back
123:
124: =cut
125:
126:
1.1 harris41 127: package Apache::lonroles;
128:
129: use strict;
1.118 albertel 130: use Apache::lonnet;
1.7 www 131: use Apache::lonuserstate();
1.1 harris41 132: use Apache::Constants qw(:common);
1.2 www 133: use Apache::File();
1.26 www 134: use Apache::lonmenu;
1.29 albertel 135: use Apache::loncommon;
1.104 raeburn 136: use Apache::lonhtmlcommon;
1.57 www 137: use Apache::lonannounce;
1.72 www 138: use Apache::lonlocal;
1.151 www 139: use Apache::lonpageflip();
1.167 albertel 140: use Apache::lonnavdisplay();
1.120 albertel 141: use GDBM_File;
1.170 albertel 142: use LONCAPA qw(:DEFAULT :match);
1.201 raeburn 143: use HTML::Entities;
1.149 www 144:
1.1 harris41 145:
1.62 matthew 146: sub redirect_user {
1.95 albertel 147: my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62 matthew 148: $msg = $title if (! defined($msg));
1.73 www 149: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 150: &Apache::loncommon::no_cache($r);
151: $r->send_http_header;
152: my $swinfo=&Apache::lonmenu::rawconfig();
1.96 albertel 153: my $navwindow;
1.95 albertel 154: if ($launch_nav eq 'on') {
1.166 albertel 155: $navwindow.=&Apache::lonnavdisplay::launch_win('now',undef,undef,
156: ($url =~ m-^/adm/whatsnew-));
1.96 albertel 157: } else {
158: $navwindow.=&Apache::lonnavmaps::close();
1.95 albertel 159: }
1.147 albertel 160: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
161: {'redirect' => [1,$url],});
162: my $end_page = &Apache::loncommon::end_page();
163:
1.92 www 164: # Note to style police:
165: # This must only replace the spaces, nothing else, or it bombs elsewhere.
166: $url=~s/ /\%20/g;
1.93 albertel 167: $r->print(<<ENDREDIR);
1.147 albertel 168: $start_page
1.96 albertel 169: <script type="text/javascript">
1.62 matthew 170: $swinfo
171: </script>
1.96 albertel 172: $navwindow
1.62 matthew 173: <h1>$msg</h1>
1.147 albertel 174: $end_page
1.62 matthew 175: ENDREDIR
176: return;
177: }
178:
1.150 www 179: sub error_page {
180: my ($r,$error,$dest)=@_;
181: &Apache::loncommon::content_type($r,'text/html');
182: &Apache::loncommon::no_cache($r);
183: $r->send_http_header;
184: return OK if $r->header_only;
185: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
186: '<script type="text/javascript">'.
187: &Apache::lonmenu::rawconfig().'</script>'.
188: '<p>'.&mt('The following problems occurred:').
189: $error.
1.156 albertel 190: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
1.150 www 191: &Apache::loncommon::end_page());
192: }
193:
1.1 harris41 194: sub handler {
1.10 www 195:
1.1 harris41 196: my $r = shift;
197:
1.6 www 198: my $now=time;
1.118 albertel 199: my $then=$env{'user.login.time'};
1.6 www 200: my $envkey;
1.107 raeburn 201: my %dcroles = ();
202: my $numdc = &check_fordc(\%dcroles,$then);
1.148 albertel 203: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10 www 204:
1.6 www 205: # ================================================================== Roles Init
1.118 albertel 206: if ($env{'form.selectrole'}) {
1.188 www 207:
208: my $locknum=&Apache::lonnet::get_locks();
209: if ($locknum) { return 409; }
210:
1.134 www 211: if ($env{'form.newrole'}) {
212: $env{'form.'.$env{'form.newrole'}}=1;
213: }
1.118 albertel 214: if ($env{'request.course.id'}) {
1.185 raeburn 215: # Check if user is CC trying to select a course role
216: if ($env{'form.switchrole'}) {
217: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
218: &adhoc_course_role($then);
219: }
220: }
1.118 albertel 221: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 222: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 223: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 224: }
1.186 raeburn 225: &Apache::lonnet::appenv({"request.course.id" => '',
226: "request.course.fn" => '',
227: "request.course.uri" => '',
228: "request.course.sec" => '',
229: "request.role" => 'cm',
230: "request.role.adv" => $env{'user.adv'},
231: "request.role.domain" => $env{'user.domain'}});
1.182 www 232: # Check if user is a DC trying to enter a course or author space and needs privs to be created
1.107 raeburn 233: if ($numdc > 0) {
1.118 albertel 234: foreach my $envkey (keys %env) {
1.182 www 235: # Is this an ad-hoc CC-role?
1.146 raeburn 236: if (my ($domain,$coursenum) =
1.171 albertel 237: ($envkey =~ m-^form\.cc\./($match_domain)/($match_courseid)$-)) {
1.146 raeburn 238: if ($dcroles{$domain}) {
1.218 raeburn 239: &Apache::lonnet::check_adhoc_privs($domain,$coursenum,
240: $then,$now,'cc');
1.182 www 241: }
242: last;
243: }
1.193 raeburn 244: # Is this an ad-hoc CA-role?
1.183 www 245: if (my ($domain,$user) =
246: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
1.206 raeburn 247: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
248: delete($env{$envkey});
249: $env{'form.au./'.$domain.'/'} = 1;
250: my ($server_status,$home) = &check_author_homeserver($user,$domain);
251: if ($server_status eq 'switchserver') {
252: my $trolecode = 'au./'.$domain.'/';
253: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
254: $r->internal_redirect($switchserver);
255: }
256: last;
257: }
258: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
259: if (((($castart) && ($castart < $now)) || !$castart) &&
260: ((!$caend) || (($caend) && ($caend > $now)))) {
261: my ($server_status,$home) = &check_author_homeserver($user,$domain);
262: if ($server_status eq 'switchserver') {
263: my $trolecode = 'ca./'.$domain.'/'.$user;
264: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
265: $r->internal_redirect($switchserver);
266: }
267: last;
268: }
269: }
270: # Check if author blocked ca-access
1.190 www 271: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
272: if ($blocked{'domcoord.author'} eq 'blocked') {
1.206 raeburn 273: delete($env{$envkey});
274: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
275: last;
1.190 www 276: }
1.193 raeburn 277: if ($dcroles{$domain}) {
278: my ($server_status,$home) = &check_author_homeserver($user,$domain);
279: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
1.218 raeburn 280: &Apache::lonnet::check_adhoc_privs($domain,$user,$then,
281: $now,'ca');
1.193 raeburn 282: if ($server_status eq 'switchserver') {
283: my $trolecode = 'ca./'.$domain.'/'.$user;
284: my $switchserver = '/adm/switchserver?'
285: .'otherserver='.$home.'&role='.$trolecode;
286: $r->internal_redirect($switchserver);
287: }
288: } else {
289: delete($env{$envkey});
290: }
1.183 www 291: } else {
292: delete($env{$envkey});
1.182 www 293: }
294: last;
295: }
1.107 raeburn 296: }
297: }
298:
1.118 albertel 299: foreach $envkey (keys %env) {
1.40 matthew 300: next if ($envkey!~/^user\.role\./);
1.102 raeburn 301: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
1.218 raeburn 302: &Apache::lonnet::role_status($envkey,$then,$now,\$role,\$where,
303: \$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 304: if ($env{'form.'.$trolecode}) {
1.55 albertel 305: if ($tstatus eq 'is') {
306: $where=~s/^\///;
307: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 308: # check for course groups
309: my %coursegroups = &Apache::lonnet::get_active_groups(
310: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
311: my $cgrps = join(':',keys(%coursegroups));
312:
1.111 albertel 313: # store role if recent_role list being kept
1.118 albertel 314: if ($env{'environment.recentroles'}) {
1.158 albertel 315: my %frozen_roles =
316: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111 albertel 317: &Apache::lonhtmlcommon::store_recent('roles',
1.158 albertel 318: $trolecode,' ',$frozen_roles{$trolecode});
1.111 albertel 319: }
320:
321:
1.53 www 322: # check for keyed access
1.55 albertel 323: if (($role eq 'st') &&
1.118 albertel 324: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 325: # who is key authority?
326: my $authdom=$cdom;
327: my $authnum=$cnum;
1.118 albertel 328: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 329: ($authnum,$authdom)=
1.172 albertel 330: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 331: }
332: # check with key authority
333: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 334: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 335: $authdom,$authnum)) {
1.53 www 336: # there is no valid key
1.118 albertel 337: if ($env{'form.newkey'}) {
1.53 www 338: # student attempts to register a new key
1.89 www 339: &Apache::loncommon::content_type($r,'text/html');
340: &Apache::loncommon::no_cache($r);
341: $r->send_http_header;
342: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 343: my $start_page=&Apache::loncommon::start_page
1.89 www 344: ('Verifying Access Key to Unlock this Course');
1.147 albertel 345: my $end_page=&Apache::loncommon::end_page();
1.90 www 346: my $buttontext=&mt('Enter Course');
347: my $message=&mt('Successfully registered key');
348: my $assignresult=
349: &Apache::lonnet::assign_access_key(
1.118 albertel 350: $env{'form.newkey'},
1.90 www 351: $authdom,$authnum,
1.91 www 352: $cdom,$cnum,
1.118 albertel 353: $env{'user.domain'},
354: $env{'user.name'},
1.204 bisitz 355: &mt('Assigned from [_1] at [_2] for [_3]'
356: ,$ENV{'REMOTE_ADDR'}
357: ,&Apache::lonlocal::locallocaltime()
358: ,$trolecode)
359: );
1.90 www 360: unless ($assignresult eq 'ok') {
361: $assignresult=~s/^error\:\s*//;
362: $message=&mt($assignresult).
363: '<br /><a href="/adm/logout">'.
1.89 www 364: &mt('Logout').'</a>';
1.90 www 365: $buttontext=&mt('Re-Enter Key');
366: }
1.89 www 367: $r->print(<<ENDENTEREDKEY);
1.147 albertel 368: $start_page
1.179 raeburn 369: <script type="text/javascript">
1.89 www 370: $swinfo
371: </script>
372: <form method="post">
373: <input type="hidden" name="selectrole" value="1" />
374: <input type="hidden" name="$trolecode" value="1" />
1.211 tempelho 375: <span class="LC_fontsize_large">$message</span><br />
1.89 www 376: <input type="submit" value="$buttontext" />
377: </form>
1.147 albertel 378: $end_page
1.89 www 379: ENDENTEREDKEY
380: return OK;
1.55 albertel 381: } else {
1.53 www 382: # print form to enter a new key
1.73 www 383: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 384: &Apache::loncommon::no_cache($r);
385: $r->send_http_header;
386: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 387: my $start_page=&Apache::loncommon::start_page
1.55 albertel 388: ('Enter Access Key to Unlock this Course');
1.147 albertel 389: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 390: $r->print(<<ENDENTERKEY);
1.147 albertel 391: $start_page
1.179 raeburn 392: <script type="text/javascript">
1.53 www 393: $swinfo
394: </script>
395: <form method="post">
1.89 www 396: <input type="hidden" name="selectrole" value="1" />
397: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 398: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 399: <input type="submit" value="Enter key" />
400: </form>
1.147 albertel 401: $end_page
1.53 www 402: ENDENTERKEY
1.55 albertel 403: return OK;
404: }
405: }
406: }
1.118 albertel 407: &Apache::lonnet::log($env{'user.domain'},
408: $env{'user.name'},
409: $env{'user.home'},
1.87 www 410: "Role ".$trolecode);
1.101 albertel 411:
1.56 www 412: &Apache::lonnet::appenv(
1.186 raeburn 413: {'request.role' => $trolecode,
414: 'request.role.domain' => $cdom,
415: 'request.course.sec' => $csec,
416: 'request.course.groups' => $cgrps});
1.101 albertel 417: my $tadv=0;
1.62 matthew 418:
1.125 www 419: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152 raeburn 420: my $msg;
1.55 albertel 421: my ($furl,$ferr)=
422: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 423: if (($env{'form.orgurl'}) &&
424: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
425: my $dest=$env{'form.orgurl'};
1.219 ! raeburn 426: if ($env{'form.symb'}) {
! 427: if ($dest =~ /\?/) {
! 428: $dest .= '&';
! 429: } else {
! 430: $dest .= '?'
! 431: }
! 432: $dest .= 'symb='.$env{'form.symb'};
! 433: }
1.117 albertel 434: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 435: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.150 www 436: if (($ferr) && ($tadv)) {
437: &error_page($r,$ferr,$dest);
438: } else {
439: $r->internal_redirect($dest);
440: }
1.55 albertel 441: return OK;
442: } else {
1.155 albertel 443: if (!$env{'request.course.id'}) {
1.55 albertel 444: &Apache::lonnet::appenv(
1.186 raeburn 445: {"request.course.id" => $cdom.'_'.$cnum});
1.61 www 446: $furl='/adm/roles?tryagain=1';
1.55 albertel 447: $msg=
1.157 albertel 448: '<h1><span class="LC_error">'.
1.162 albertel 449: &mt('Could not initialize [_1] at this time.',
450: $env{'course.'.$cdom.'_'.$cnum.'.description'}).
1.157 albertel 451: '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 452: }
1.117 albertel 453: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 454: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.152 raeburn 455:
1.150 www 456: if (($ferr) && ($tadv)) {
457: &error_page($r,$ferr,$furl);
458: } else {
459: # Check to see if the user is a CC entering a course
460: # for the first time
461: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
462: if (substr($courseid, 0, 1) eq '/') {
463: $courseid = substr($courseid, 1);
464: }
465: $courseid =~ s/\//_/;
466: if ($role eq 'cc' && $env{'course.' . $courseid .
467: '.course.helper.not.run'}) {
468: $furl = "/adm/helper/course.initialization.helper";
469: # Send the user to the course they selected
470: } elsif ($env{'request.course.id'}) {
1.185 raeburn 471: if ($env{'form.destinationurl'}) {
472: my $dest = $env{'form.destinationurl'};
1.203 raeburn 473: if ($env{'form.destsymb'} ne '') {
474: my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
475: $dest .= '?symb='.$esc_symb;
476: }
1.185 raeburn 477: &redirect_user($r,&mt('Entering [_1]',
478: $env{'course.'.$courseid.'.description'}),
479: $dest,$msg,
480: $env{'environment.remotenavmap'});
481: return OK;
482: }
1.150 www 483: if (&Apache::lonnet::allowed('whn',
484: $env{'request.course.id'})
485: || &Apache::lonnet::allowed('whn',
486: $env{'request.course.id'}.'/'
487: .$env{'request.course.sec'})
488: ) {
489: my $startpage = &courseloadpage($courseid);
490: unless ($startpage eq 'firstres') {
1.204 bisitz 491: $msg = &mt('Entering [_1] ...',
1.162 albertel 492: $env{'course.'.$courseid.'.description'});
1.150 www 493: &redirect_user($r,&mt('New in course'),
494: '/adm/whatsnew?refpage=start',$msg,
495: $env{'environment.remotenavmap'});
496: return OK;
497: }
498: }
499: }
1.151 www 500: # Are we allowed to look at the first resource?
1.169 albertel 501: if ($furl !~ m|^/adm/|) {
1.151 www 502: # Guess not ...
503: $furl=&Apache::lonpageflip::first_accessible_resource();
504: }
1.162 albertel 505: $msg = &mt('Entering [_1] ...',
506: $env{'course.'.$courseid.'.description'});
507: &redirect_user($r,&mt('Entering [_1]',
508: $env{'course.'.$courseid.'.description'}),
1.150 www 509: $furl,$msg,
510: $env{'environment.remotenavmap'});
1.58 bowersj2 511: }
1.124 albertel 512: return OK;
1.55 albertel 513: }
514: }
1.62 matthew 515: #
516: # Send the user to the construction space they selected
1.125 www 517: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 518: my $redirect_url = '/priv/';
519: if ($role eq 'au') {
1.118 albertel 520: $redirect_url.=$env{'user.name'};
1.62 matthew 521: } else {
522: $where =~ /\/(.*)$/;
523: $redirect_url .= $1;
524: }
525: $redirect_url .= '/';
1.78 sakharuk 526: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 527: $redirect_url);
528: return OK;
529: }
1.104 raeburn 530: if ($role eq 'dc') {
1.108 raeburn 531: my $redirect_url = '/adm/menu/';
532: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 533: $redirect_url);
1.108 raeburn 534: return OK;
1.104 raeburn 535: }
1.55 albertel 536: }
537: }
1.6 www 538: }
1.40 matthew 539: }
1.44 www 540:
1.10 www 541:
1.6 www 542: # =============================================================== No Roles Init
1.10 www 543:
1.73 www 544: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 545: &Apache::loncommon::no_cache($r);
1.10 www 546: $r->send_http_header;
547: return OK if $r->header_only;
548:
1.214 raeburn 549: my $brcrum =[{href=>"/admm/roles",text=>"User Roles"}];
1.52 www 550: my $swinfo=&Apache::lonmenu::rawconfig();
1.217 schafran 551: my $start_page=&Apache::loncommon::start_page('My Roles',undef,{bread_crumbs=>$brcrum});
1.134 www 552: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 553: $standby=~s/\n/\\n/g;
1.184 raeburn 554: my $noscript='<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 />';
1.163 www 555:
1.10 www 556: $r->print(<<ENDHEADER);
1.147 albertel 557: $start_page
1.163 www 558: <br />
1.179 raeburn 559: <noscript>
560: $noscript
561: </noscript>
562: <script type="text/javascript">
1.26 www 563: $swinfo
564: window.focus();
1.134 www 565:
566: active=true;
567:
568: function enterrole (thisform,rolecode,buttonname) {
569: if (active) {
570: active=false;
571: document.title='$standby';
572: window.status='$standby';
573: thisform.newrole.value=rolecode;
574: thisform.submit();
575: } else {
576: alert('$standby');
577: }
578: }
1.26 www 579: </script>
1.10 www 580: ENDHEADER
1.6 www 581:
1.2 www 582: # ------------------------------------------ Get Error Message from Environment
583:
1.118 albertel 584: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
585: if ($env{'user.error.msg'}) {
1.55 albertel 586: $r->log_reason(
1.118 albertel 587: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 588: }
1.1 harris41 589:
1.61 www 590: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 591:
1.118 albertel 592: my $advanced=$env{'user.adv'};
1.61 www 593: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 594: my $tryagain=$env{'form.tryagain'};
1.209 raeburn 595: my $reinit=$env{'user.reinit'};
596: delete $env{'user.reinit'};
1.6 www 597:
1.2 www 598: # -------------------------------------------------------- Generate Page Output
1.6 www 599: # --------------------------------------------------------------- Error Header?
1.2 www 600: if ($error) {
1.187 bisitz 601: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
1.174 albertel 602: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
603: if ($priv ne '') {
1.187 bisitz 604: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
1.174 albertel 605: }
606: if ($fn ne '') {
1.187 bisitz 607: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
1.174 albertel 608: }
609: if ($msg ne '') {
1.187 bisitz 610: $r->print(&mt('Action : ').$msg."\n");
1.174 albertel 611: }
612: $r->print("</pre><hr />");
1.120 albertel 613: my $url=$fn;
614: my $last;
615: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
616: &GDBM_READER(),0640)) {
617: $last=$hash{'last_known'};
618: untie(%hash);
619: }
1.149 www 620: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 621:
622: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
623: &Apache::lonenc::check_encrypt($fn));
1.2 www 624: } else {
1.118 albertel 625: if ($env{'user.error.msg'}) {
1.209 raeburn 626: if ($reinit) {
627: $r->print(
628: '<h3><span class="LC_error">'.
629: &mt('As your session file for the course has expired, you will need to re-select the course.').'</span></h3>');
630: } else {
631: $r->print(
1.157 albertel 632: '<h3><span class="LC_error">'.
633: &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
1.209 raeburn 634: }
635: }
1.2 www 636: }
1.6 www 637: # -------------------------------------------------------- Choice or no choice?
1.2 www 638: if ($nochoose) {
1.177 www 639: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
640: &mt('This action is currently not authorized.').'</span>'.
1.150 www 641: &Apache::loncommon::end_page());
642: return OK;
1.6 www 643: } else {
1.18 www 644: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
645: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 646: }
1.84 www 647: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 648: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
649: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 650: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 651: }
1.75 albertel 652: my (%roletext,%sortrole,%roleclass);
1.84 www 653: my $countactive=0;
1.191 raeburn 654: my $countfuture=0;
655: my $countwill=0;
1.84 www 656: my $inrole=0;
657: my $possiblerole='';
1.191 raeburn 658: my %futureroles;
659: my %roles_nextlogin;
1.215 raeburn 660: my %timezones;
1.118 albertel 661: foreach $envkey (sort keys %env) {
1.35 matthew 662: my $button = 1;
1.49 www 663: my $switchserver='';
1.75 albertel 664: my $roletext;
665: my $sortkey;
1.2 www 666: if ($envkey=~/^user\.role\./) {
1.212 bisitz 667: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.218 raeburn 668: &Apache::lonnet::role_status($envkey,$then,$now,\$role,\$where,
669: \$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 670: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.215 raeburn 671: my $timezone = &role_timezone($where,\%timezones);
1.102 raeburn 672: $tremark='';
673: $tpstart=' ';
674: $tpend=' ';
1.4 www 675: if ($tstart) {
1.215 raeburn 676: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
1.4 www 677: }
678: if ($tend) {
1.215 raeburn 679: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
1.4 www 680: }
1.118 albertel 681: if ($env{'request.role'} eq $trolecode) {
1.6 www 682: $tstatus='selected';
683: }
1.4 www 684: my $tbg;
1.164 albertel 685: if (($tstatus eq 'is')
686: || ($tstatus eq 'selected')
687: || ($tstatus eq 'will')
688: || ($tstatus eq 'future')
689: || ($env{'form.showall'})) {
1.35 matthew 690: if ($tstatus eq 'is') {
1.212 bisitz 691: $tbg='LC_roles_is';
1.84 www 692: $possiblerole=$trolecode;
693: $countactive++;
1.35 matthew 694: } elsif ($tstatus eq 'future') {
1.212 bisitz 695: $tbg='LC_roles_future';
1.49 www 696: $button=0;
1.191 raeburn 697: $futureroles{$trolecode} = $tstart.':'.$tend;
698: $countfuture ++;
1.35 matthew 699: } elsif ($tstatus eq 'will') {
1.212 bisitz 700: $tbg='LC_roles_will';
1.204 bisitz 701: $tremark.=&mt('Active at next login.').' ';
1.191 raeburn 702: $roles_nextlogin{$trolecode} = $tstart.':'.$tend;
703: $countwill ++;
1.35 matthew 704: } elsif ($tstatus eq 'expired') {
1.212 bisitz 705: $tbg='LC_roles_expired';
1.49 www 706: $button=0;
1.35 matthew 707: } elsif ($tstatus eq 'will_not') {
1.212 bisitz 708: $tbg='LC_roles_will_not';
1.204 bisitz 709: $tremark.=&mt('Expired after logout.').' ';
1.35 matthew 710: } elsif ($tstatus eq 'selected') {
1.212 bisitz 711: $tbg='LC_roles_selected';
1.84 www 712: $inrole=1;
1.86 albertel 713: $countactive++;
1.204 bisitz 714: $tremark.=&mt('Currently selected.').' ';
1.35 matthew 715: }
716: my $trole;
717: if ($role =~ /^cr\//) {
718: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 719: if ($tremark) { $tremark.='<br />'; }
1.204 bisitz 720: $tremark.=&mt('Defined by [_1] at [_2].',$rauthor,$rdomain);
1.159 albertel 721: }
722: $trole=Apache::lonnet::plaintext($role);
1.35 matthew 723: my $ttype;
724: my $twhere;
725: my ($tdom,$trest,$tsection)=
726: split(/\//,Apache::lonnet::declutter($where));
727: # First, Co-Authorship roles
1.125 www 728: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 729: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 730: my $allowed=0;
731: my @ids=&Apache::lonnet::current_machine_ids();
732: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
733: if (!$allowed) {
1.49 www 734: $button=0;
1.130 albertel 735: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 736: }
1.35 matthew 737: #next if ($home eq 'no_host');
1.176 albertel 738: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 739: $ttype='Construction Space';
1.72 www 740: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
741: ': '.$tdom.'<br />'.
742: ' '.&mt('Server').': '.$home;
1.118 albertel 743: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 744: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 745: $sortkey=$role."$trest:$tdom";
1.35 matthew 746: } elsif ($role eq 'au') {
747: # Authors
748: my $home = &Apache::lonnet::homeserver
1.118 albertel 749: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 750: my $allowed=0;
751: my @ids=&Apache::lonnet::current_machine_ids();
752: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
753: if (!$allowed) {
1.49 www 754: $button=0;
1.143 albertel 755: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 756: }
1.35 matthew 757: #next if ($home eq 'no_host');
1.176 albertel 758: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 759: $ttype='Construction Space';
1.72 www 760: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
761: ': '.$home;
1.118 albertel 762: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
763: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 764: $sortkey=$role;
1.35 matthew 765: } elsif ($trest) {
766: my $tcourseid=$tdom.'_'.$trest;
1.153 raeburn 767: $ttype = &Apache::loncommon::course_type($tcourseid);
768: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.118 albertel 769: if ($env{'course.'.$tcourseid.'.description'}) {
770: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 771: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 772: unless ($twhere eq &mt('Currently not available')) {
1.211 tempelho 773: $twhere.=' <span class="LC_fontsize_small">'.
1.212 bisitz 774: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1.211 tempelho 775: '</span>';
1.55 albertel 776: }
1.8 www 777: } else {
1.105 raeburn 778: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 779: if (%newhash) {
1.80 albertel 780: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 781: "\0".$envkey;
1.49 www 782: $twhere=$newhash{'description'}.
1.211 tempelho 783: ' <span class="LC_fontsize_small">'.
1.212 bisitz 784: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
1.211 tempelho 785: '</span>';
1.152 raeburn 786: $ttype = $newhash{'type'};
1.153 raeburn 787: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.35 matthew 788: } else {
1.72 www 789: $twhere=&mt('Currently not available');
1.118 albertel 790: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 791: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.152 raeburn 792: $ttype = 'Unavailable';
1.35 matthew 793: }
1.8 www 794: }
1.121 albertel 795: if ($tsection) {
1.175 albertel 796: $twhere.='<br />'.&mt('Section').': '.$tsection;
1.121 albertel 797: }
1.72 www 798: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 799: } elsif ($tdom) {
1.78 sakharuk 800: $ttype='Domain';
1.35 matthew 801: $twhere=$tdom;
1.75 albertel 802: $sortkey=$role.$twhere;
1.35 matthew 803: } else {
1.78 sakharuk 804: $ttype='System';
1.72 www 805: $twhere=&mt('system wide');
1.75 albertel 806: $sortkey=$role.$twhere;
1.13 www 807: }
1.212 bisitz 808: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit);
1.75 albertel 809: $roletext{$envkey}=$roletext;
810: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
811: $sortrole{$sortkey}=$envkey;
812: $roleclass{$envkey}=$ttype;
1.55 albertel 813: }
1.4 www 814: }
1.75 albertel 815: }
1.196 raeburn 816: if ($env{'user.adv'}) {
817: $r->print(
1.212 bisitz 818: '<p><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.196 raeburn 819: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.212 bisitz 820: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" /></p>');
1.196 raeburn 821: } else {
822: if ($countactive > 0) {
1.216 raeburn 823: &queued_selfenrollment($r);
1.196 raeburn 824: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 825: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
826: $r->print('<p>'.&mt('[_1]Visit the [_2]Course Catalog[_3] to view all [_4] LON-CAPA courses.','<b>','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a></b>',$domdesc).'<br />'.&mt('If a course is [_1]not[_2] in your list of current courses below, you may be able to enroll if self-enrollment is permitted.','<b>','</b>').'</p>');
1.196 raeburn 827: }
828: }
829:
1.84 www 830: # No active roles
831: if ($countactive==0) {
832: if ($inrole) {
833: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
834: } else {
835: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
836: }
1.191 raeburn 837: &findcourse_advice($r);
838: $r->print('</form>');
839: if ($countfuture) {
840: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
841: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
842: $nochoose);
843: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
844: \%roletext);
845: my $tremark='';
1.212 bisitz 846: my $tbg;
1.191 raeburn 847: if ($env{'request.role'} eq 'cm') {
1.212 bisitz 848: $tbg="LC_roles_selected";
1.204 bisitz 849: $tremark=&mt('Currently selected.').' ';
1.191 raeburn 850: } else {
1.212 bisitz 851: $tbg="LC_roles_is";
1.191 raeburn 852: }
1.212 bisitz 853: $r->print(&Apache::loncommon::start_data_table_row()
854: .'<td class="'.$tbg.'"> </td>'
855: .'<td colspan="3">'
856: .&mt('No role specified')
857: .'</td>'
858: .'<td>'.$tremark.' </td>'
859: .&Apache::loncommon::end_data_table_row()
860: );
1.191 raeburn 861:
1.212 bisitz 862: $r->print(&Apache::loncommon::end_data_table());
1.191 raeburn 863: }
864: $r->print(&Apache::loncommon::end_page());
1.84 www 865: return OK;
866: }
867: # ----------------------------------------------------------------------- Table
1.202 raeburn 868: unless ((!&Apache::lonmenu::show_course()) || ($nochoose) || ($countactive==1)) {
1.173 albertel 869: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.84 www 870: }
1.191 raeburn 871: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1.118 albertel 872: if ($env{'environment.recentroles'}) {
1.111 albertel 873: my %recent_roles =
1.118 albertel 874: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 875: my $output='';
876: foreach (sort(keys(%recent_roles))) {
877: if (defined($roletext{'user.role.'.$_})) {
878: $output.=$roletext{'user.role.'.$_};
1.170 albertel 879: if ($_ =~ m-dc\./($match_domain)/-
880: && $dcroles{$1}) {
1.192 raeburn 881: $output .= &adhoc_roles_row($1,'recent');
1.133 albertel 882: }
1.113 raeburn 883: } elsif ($numdc > 0) {
884: unless ($_ =~/^error\:/) {
885: $output.=&display_cc_role('user.role.'.$_);
886: }
887: }
1.111 albertel 888: }
889: if ($output) {
1.212 bisitz 890: $r->print(&Apache::loncommon::start_data_table_empty_row()
891: .'<td align="center" colspan="5">'
892: .&mt('Recent Roles')
893: .'</td>'
894: .&Apache::loncommon::end_data_table_empty_row()
895: );
1.111 albertel 896: $r->print($output);
1.114 raeburn 897: $doheaders ++;
1.111 albertel 898: }
899: }
900:
1.104 raeburn 901: if ($numdc > 0) {
1.112 raeburn 902: $r->print(&coursepick_jscript());
1.193 raeburn 903: $r->print(&Apache::loncommon::coursebrowser_javascript().
904: &Apache::loncommon::authorbrowser_javascript());
1.108 raeburn 905: }
1.191 raeburn 906: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1.202 raeburn 907: if ($countactive > 1) {
908: my $tremark='';
1.212 bisitz 909: my $tbg;
1.202 raeburn 910: if ($env{'request.role'} eq 'cm') {
1.212 bisitz 911: $tbg="LC_roles_selected";
1.204 bisitz 912: $tremark=&mt('Currently selected.').' ';
1.202 raeburn 913: } else {
1.212 bisitz 914: $tbg="LC_roles_is";
1.202 raeburn 915: }
1.212 bisitz 916: $r->print(&Apache::loncommon::start_data_table_row());
1.202 raeburn 917: unless ($nochoose) {
918: if ($env{'request.role'} ne 'cm') {
1.212 bisitz 919: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1.202 raeburn 920: &mt('Select').'" name="cm" /></td>');
921: } else {
1.212 bisitz 922: $r->print('<td class="'.$tbg.'"> </td>');
1.202 raeburn 923: }
924: }
1.212 bisitz 925: $r->print('<td colspan="3">'
926: .&mt('No role specified')
927: .'</td>'
928: .'<td>'.$tremark.' </td>'
929: .&Apache::loncommon::end_data_table_row()
930: );
1.202 raeburn 931: }
1.212 bisitz 932: $r->print(&Apache::loncommon::end_data_table());
1.4 www 933: unless ($nochoose) {
934: $r->print("</form>\n");
935: }
1.22 harris41 936: # ------------------------------------------------------------ Privileges Info
1.118 albertel 937: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.212 bisitz 938: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1.175 albertel 939: $r->print(&privileges_info());
1.4 www 940: }
1.66 www 941: $r->print(&Apache::lonnet::getannounce());
1.65 www 942: if ($advanced) {
1.201 raeburn 943: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.195 bisitz 944: $r->print('<p><small><i>'
945: .&mt('This is LON-CAPA [_1]',$r->dir_config('lonVersion'))
946: .'</i><br />'
1.197 raeburn 947: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1.201 raeburn 948: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
949: .&mt('Course Catalog')
1.197 raeburn 950: .'</small></p>');
1.65 www 951: }
1.147 albertel 952: $r->print(&Apache::loncommon::end_page());
1.1 harris41 953: return OK;
1.102 raeburn 954: }
955:
1.215 raeburn 956: sub role_timezone {
957: my ($where,$timezones) = @_;
958: my $timezone;
959: if (ref($timezones) eq 'HASH') {
960: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
961: my $cdom = $1;
962: my $cnum = $2;
963: if ($cdom && $cnum) {
964: if (!exists($timezones->{$cdom.'_'.$cnum})) {
965: my %timehash =
966: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
967: if ($timehash{'timezone'} eq '') {
968: if (!exists($timezones->{$cdom})) {
969: my %domdefaults =
970: &Apache::lonnet::get_domain_defaults($cdom);
971: if ($domdefaults{'timezone_def'} eq '') {
972: $timezones->{$cdom} = 'local';
973: } else {
974: $timezones->{$cdom} = $domdefaults{'timezone_def'};
975: }
976: }
977: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
978: } else {
979: $timezones->{$cdom.'_'.$cnum} =
980: &Apache::lonlocal::gettimezone($timehash{'timezone'});
981: }
982: }
983: $timezone = $timezones->{$cdom.'_'.$cnum};
984: }
985: } else {
986: my ($tdom) = ($where =~ m{^/($match_domain)});
987: if ($tdom) {
988: if (!exists($timezones->{$tdom})) {
989: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
990: if ($domdefaults{'timezone_def'} eq '') {
991: $timezones->{$tdom} = 'local';
992: } else {
993: $timezones->{$tdom} = $domdefaults{'timezone_def'};
994: }
995: }
996: $timezone = $timezones->{$tdom};
997: }
998: }
999: if ($timezone eq 'local') {
1000: $timezone = undef;
1001: }
1002: }
1003: return $timezone;
1004: }
1005:
1.191 raeburn 1006: sub roletable_headers {
1007: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1008: my $doheaders;
1009: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1.212 bisitz 1010: $r->print('<br />'
1011: .&Apache::loncommon::start_data_table()
1012: .&Apache::loncommon::start_data_table_header_row()
1013: );
1.191 raeburn 1014: if (!$nochoose) { $r->print('<th> </th>'); }
1.212 bisitz 1015: $r->print('<th>'.&mt('User Role').'</th>'
1016: .'<th>'.&mt('Extent').'</th>'
1017: .'<th>'.&mt('Start').'</th>'
1018: .'<th>'.&mt('End').'</th>'
1019: .&Apache::loncommon::end_data_table_header_row()
1020: );
1.191 raeburn 1021: $doheaders=-1;
1022: my @roletypes = &roletypes();
1023: foreach my $type (@roletypes) {
1024: my $haverole=0;
1025: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1026: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1027: $haverole=1;
1028: }
1029: }
1030: if ($haverole) { $doheaders++; }
1031: }
1032: }
1033: return $doheaders;
1034: }
1035:
1036: sub roletypes {
1037: my @types = ('Domain','Construction Space','Course','Unavailable','System');
1038: return @types;
1039: }
1040:
1041: sub print_rolerows {
1042: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1043: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1044: my @types = &roletypes();
1045: foreach my $type (@types) {
1046: my $output;
1047: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1048: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1049: if (ref($roletext) eq 'HASH') {
1050: $output.=$roletext->{$sortrole->{$which}};
1051: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
1052: if (ref($dcroles) eq 'HASH') {
1053: if ($dcroles->{$1}) {
1.192 raeburn 1054: $output .= &adhoc_roles_row($1,'');
1.191 raeburn 1055: }
1056: }
1057: }
1058: }
1059: }
1060: }
1061: if ($output) {
1062: if ($doheaders > 0) {
1.212 bisitz 1063: $r->print(&Apache::loncommon::start_data_table_empty_row()
1064: .'<td align="center" colspan="5">'
1065: .&mt($type)
1066: .'</td>'
1067: .&Apache::loncommon::end_data_table_empty_row()
1068: );
1.191 raeburn 1069: }
1070: $r->print($output);
1071: }
1072: }
1073: }
1074: }
1075:
1076: sub findcourse_advice {
1077: my ($r) = @_;
1078: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 1079: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.200 raeburn 1080: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1.191 raeburn 1081: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1082: <ul>
1083: <li>'.&mt('The course has yet to be created.').'</li>
1084: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1085: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1086: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1087: <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>
1088: </ul>');
1089: } else {
1090: $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 />');
1091: }
1.201 raeburn 1092: $r->print('<p>'.&mt('The [_1]Course Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1.191 raeburn 1093: $r->print(&mt('You can search the course catalog for courses which permit self-enrollment, if you would like to enroll in a course.').'</p>');
1.216 raeburn 1094: &queued_selfenrollment($r);
1095: return;
1096: }
1097:
1098: sub queued_selfenrollment {
1099: my ($r) = @_;
1100: my %selfenrollrequests = &Apache::lonnet::dump('selfenrollrequests');
1101: my %reqs_by_date;
1102: foreach my $item (keys(%selfenrollrequests)) {
1103: if (ref($selfenrollrequests{$item}) eq 'HASH') {
1104: if ($selfenrollrequests{$item}{'status'} eq 'request') {
1105: if ($selfenrollrequests{$item}{'timestamp'}) {
1106: push(@{$reqs_by_date{$selfenrollrequests{$item}{'timestamp'}}},$item);
1107: }
1108: }
1109: }
1110: }
1111: if (keys(%reqs_by_date)) {
1112: my $rolename = &Apache::lonnet::plaintext('st');
1113: $r->print('<b>'.&mt('Enrollment requests pending Course Coordinator approval').'</b><br />'.
1114: &Apache::loncommon::start_data_table().
1115: &Apache::loncommon::start_data_table_header_row().
1116: '<th>'.&mt('Date requested').'</th><th>'.&mt('Course title').'</th>'.
1117: '<th>'.&mt('User role').'</th><th>'.&mt('Section').'</th>'.
1118: &Apache::loncommon::end_data_table_header_row());
1119: my @sorted = sort { $a <=> $b } (keys(%reqs_by_date));
1120: foreach my $item (@sorted) {
1121: if (ref($reqs_by_date{$item}) eq 'ARRAY') {
1122: foreach my $crs (@{$reqs_by_date{$item}}) {
1123: my %courseinfo = &Apache::lonnet::coursedescription($crs);
1124: my $usec = $selfenrollrequests{$crs}{'section'};
1125: if ($usec eq '') {
1126: $usec = &mt('No section');
1127: }
1128: $r->print(&Apache::loncommon::start_data_table_row().
1129: '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
1130: '<td>'.$courseinfo{'description'}.'</td>'.
1131: '<td>'.$rolename.'</td><td>'.$usec.'</td>'.
1132: &Apache::loncommon::end_data_table_row());
1133: }
1134: }
1135: }
1136: $r->print(&Apache::loncommon::end_data_table());
1137: }
1.191 raeburn 1138: return;
1139: }
1140:
1.175 albertel 1141: sub privileges_info {
1142: my ($which) = @_;
1143: my $output;
1144:
1145: $which ||= $env{'request.role'};
1146:
1147: foreach my $envkey (sort(keys(%env))) {
1148: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1149:
1150: my $where=$1;
1151: my $ttype;
1152: my $twhere;
1153: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1154: if ($trest) {
1155: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1156: $ttype='Construction Space';
1157: $twhere='User: '.$trest.', Domain: '.$tdom;
1158: } else {
1159: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1160: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1161: if ($tsec) {
1162: my $sec_type = 'Section';
1163: if (exists($env{"user.role.gr.$where"})) {
1164: $sec_type = 'Group';
1165: }
1166: $twhere.=' ('.$sec_type.': '.$tsec.')';
1167: }
1168: }
1169: } elsif ($tdom) {
1170: $ttype='Domain';
1171: $twhere=$tdom;
1172: } else {
1173: $ttype='System';
1174: $twhere='/';
1175: }
1.204 bisitz 1176: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1.175 albertel 1177: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1178: next if (!$priv);
1179:
1180: my ($prv,$restr)=split(/\&/,$priv);
1181: my $trestr='';
1182: if ($restr ne 'F') {
1183: $trestr.=' ('.
1184: join(', ',
1185: map { &Apache::lonnet::plaintext($_) }
1186: (split('',$restr))).') ';
1187: }
1188: $output .= "\n\t".
1189: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1190: }
1191: $output .= "\n".'</ul>';
1192: }
1193: return $output;
1194: }
1195:
1.110 raeburn 1196: sub build_roletext {
1.212 bisitz 1197: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit) = @_;
1198: my $roletext=&Apache::loncommon::start_data_table_row();
1.132 albertel 1199: my $is_dc=($trolecode =~ m/^dc\./);
1200: my $rowspan=($is_dc) ? ''
1201: : ' rowspan="2" ';
1202:
1.110 raeburn 1203: unless ($nochoose) {
1.134 www 1204: my $buttonname=$trolecode;
1205: $buttonname=~s/\W//g;
1.110 raeburn 1206: if (!$button) {
1207: if ($switchserver) {
1.212 bisitz 1208: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1209: .'<a href="/adm/switchserver?'.$switchserver.'">'
1210: .&mt('Switch Server')
1211: .'</a></td>';
1.110 raeburn 1212: } else {
1.212 bisitz 1213: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1.110 raeburn 1214: }
1215: } elsif ($tstatus eq 'is') {
1.212 bisitz 1216: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1217: '<input name="'.$buttonname.'" type="button" value="'.
1.134 www 1218: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1219: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1220: } elsif ($tryagain) {
1221: $roletext.=
1.212 bisitz 1222: '<td'.$rowspan.' class="'.$tbg.'">'.
1223: '<input name="'.$buttonname.'" type="button" value="'.
1.134 www 1224: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1225: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1226: } elsif ($advanced) {
1227: $roletext.=
1.212 bisitz 1228: '<td'.$rowspan.' class="'.$tbg.'">'.
1229: '<input name="'.$buttonname.'" type="button" value="'.
1.134 www 1230: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1231: $trolecode."','".$buttonname.'\');" /></td>';
1.209 raeburn 1232: } elsif ($reinit) {
1233: $roletext.=
1.212 bisitz 1234: '<td'.$rowspan.' class="'.$tbg.'">'.
1235: '<input name="'.$buttonname.'" type="button" value="'.
1.209 raeburn 1236: &mt('Re-Select').'" onClick="javascript:enterrole(this.form,\''.
1237: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1238: } else {
1.209 raeburn 1239: $roletext.=
1.212 bisitz 1240: '<td'.$rowspan.' class="'.$tbg.'">'.
1241: '<input name="'.$buttonname.'" type="button" value="'.
1.209 raeburn 1242: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
1243: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1244: }
1245: }
1.165 albertel 1246: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1247: $tremark.=&Apache::lonannounce::showday(time,1,
1248: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1249: }
1.212 bisitz 1250: $roletext.='<td>'.$trole.'</td>'
1251: .'<td>'.$twhere.'</td>'
1252: .'<td>'.$tpstart.'</td>'
1253: .'<td>'.$tpend.'</td>'
1254: .&Apache::loncommon::end_data_table_row();
1.132 albertel 1255: if (!$is_dc) {
1.212 bisitz 1256: $roletext.=&Apache::loncommon::continue_data_table_row()
1257: .'<td colspan="4">'
1258: .$tremark.' '
1259: .'</td>'
1260: .&Apache::loncommon::end_data_table_row();
1.132 albertel 1261: }
1.110 raeburn 1262: return $roletext;
1263: }
1264:
1.202 raeburn 1265: sub check_needs_switchserver {
1266: my ($possiblerole) = @_;
1267: my $needs_switchserver;
1268: my ($role,$where) = split(/\./,$possiblerole,2);
1269: my (undef,$tdom,$twho) = split(/\//,$where);
1270: my ($server_status,$home);
1271: if (($role eq 'ca') || ($role eq 'aa')) {
1272: ($server_status,$home) = &check_author_homeserver($twho,$tdom);
1273: } else {
1274: ($server_status,$home) = &check_author_homeserver($env{'user.name'},
1275: $env{'user.domain'});
1276: }
1277: if ($server_status eq 'switchserver') {
1278: $needs_switchserver = 1;
1279: }
1280: return $needs_switchserver;
1281: }
1282:
1.193 raeburn 1283: sub check_author_homeserver {
1.183 www 1284: my ($uname,$udom)=@_;
1.193 raeburn 1285: if (($uname eq '') || ($udom eq '')) {
1286: return ('fail','');
1287: }
1.183 www 1288: my $home = &Apache::lonnet::homeserver($uname,$udom);
1.193 raeburn 1289: if (&Apache::lonnet::host_domain($home) ne $udom) {
1290: return ('fail',$home);
1291: }
1.183 www 1292: my @ids=&Apache::lonnet::current_machine_ids();
1.193 raeburn 1293: if (grep(/^\Q$home\E$/,@ids)) {
1294: return ('ok',$home);
1295: } else {
1296: return ('switchserver',$home);
1.183 www 1297: }
1298: }
1299:
1.104 raeburn 1300: sub check_fordc {
1301: my ($dcroles,$then) = @_;
1302: my $numdc = 0;
1.118 albertel 1303: if ($env{'user.adv'}) {
1304: foreach my $envkey (sort keys %env) {
1.170 albertel 1305: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1.104 raeburn 1306: my $dcdom = $1;
1307: my $livedc = 1;
1.118 albertel 1308: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 1309: if ($tstart && $tstart>$then) { $livedc = 0; }
1310: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 1311: if ($livedc) {
1312: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 1313: $numdc++;
1.104 raeburn 1314: }
1315: }
1316: }
1317: }
1318: return $numdc;
1319: }
1320:
1.185 raeburn 1321: sub adhoc_course_role {
1322: my ($then) = @_;
1323: my ($cdom,$cnum);
1.201 raeburn 1324: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1325: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.185 raeburn 1326: if (&check_forcc($cdom,$cnum,$then)) {
1327: my $setprivs;
1.198 raeburn 1328: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1.185 raeburn 1329: $setprivs = 1;
1330: } else {
1.198 raeburn 1331: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1.185 raeburn 1332: if (($start && ($start>$then || $start == -1)) ||
1333: ($end && $end<$then)) {
1334: $setprivs = 1;
1335: }
1336: }
1337: if ($setprivs) {
1.198 raeburn 1338: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1.185 raeburn 1339: my $role = $1;
1340: my $custom_role = $2;
1341: my $usec = $3;
1342: if ($role eq 'cr') {
1.199 raeburn 1343: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1.185 raeburn 1344: $role .= $custom_role;
1345: } else {
1346: return;
1347: }
1348: }
1.208 raeburn 1349: my (%userroles,%newrole,%newgroups,%group_privs);
1350: my %cgroups =
1351: &Apache::lonnet::get_active_groups($env{'user.domain'},
1352: $env{'user.name'},$cdom,$cnum);
1353: foreach my $group (keys(%cgroups)) {
1354: $group_privs{$group} =
1355: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1356: }
1357: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1.185 raeburn 1358: my $area = '/'.$cdom.'/'.$cnum;
1359: my $spec = $role.'.'.$area;
1360: if ($usec ne '') {
1361: $spec .= '/'.$usec;
1362: $area .= '/'.$usec;
1363: }
1364: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1.208 raeburn 1365: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1.185 raeburn 1366: my $adhocstart = $then-1;
1367: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1.186 raeburn 1368: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.185 raeburn 1369: }
1370: }
1371: }
1372: return;
1373: }
1374:
1375: sub check_forcc {
1376: my ($cdom,$cnum,$then) = @_;
1377: my $is_cc;
1378: if ($cdom ne '' && $cnum ne '') {
1379: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1380: my $envkey = 'user.role.cc./'.$cdom.'/'.$cnum;
1381: if (defined($env{$envkey})) {
1382: $is_cc = 1;
1383: my ($tstart,$tend)=split(/\./,$env{$envkey});
1384: if ($tstart && $tstart>$then) { $is_cc = 0; }
1385: if ($tend && $tend <$then) { $is_cc = 0; }
1386: }
1387: }
1388: }
1389: return $is_cc;
1390: }
1391:
1.108 raeburn 1392: sub courselink {
1.193 raeburn 1393: my ($dcdom,$rowtype) = @_;
1.109 raeburn 1394: my $courseform=&Apache::loncommon::selectcourse_link
1.152 raeburn 1395: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1396: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1.173 albertel 1397: $dcdom,$dcdom,undef);
1.138 raeburn 1398: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1399: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1400: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1401: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 1402: return $courseform.$hiddenitems;
1.109 raeburn 1403: }
1404:
1405: sub coursepick_jscript {
1.184 raeburn 1406: my %lt = &Apache::lonlocal::texthash(
1407: plsu => "Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.",
1408: youc => 'You can only use this screen to select courses in the current domain.',
1409: );
1.104 raeburn 1410: my $verify_script = <<"END";
1.179 raeburn 1411: <script type="text/javascript">
1.108 raeburn 1412: function verifyCoursePick(caller) {
1413: var numbutton = getIndex(caller)
1.112 raeburn 1414: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1415: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1416: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 1417: if (pickedCourse != '') {
1.108 raeburn 1418: if (numbutton != -1) {
1419: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1420: document.rolechoice.elements[numbutton+1].name = courseTarget
1421: document.rolechoice.submit()
1422: }
1.104 raeburn 1423: }
1424: else {
1.184 raeburn 1425: alert("$lt{'plsu'}");
1.104 raeburn 1426: }
1427: }
1428: else {
1.184 raeburn 1429: alert("$lt{'youc'}")
1.104 raeburn 1430: }
1431: }
1.109 raeburn 1432: function getIndex(caller) {
1.108 raeburn 1433: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 1434: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 1435: return i;
1436: }
1437: }
1438: return -1;
1439: }
1.104 raeburn 1440: </script>
1441: END
1.109 raeburn 1442: return $verify_script;
1.104 raeburn 1443: }
1444:
1.193 raeburn 1445: sub coauthorlink {
1446: my ($dcdom,$rowtype) = @_;
1447: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1448: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1449: return $coauthorform.$hiddenitems;
1450: }
1451:
1.113 raeburn 1452: sub display_cc_role {
1453: my $rolekey = shift;
1454: my $roletext;
1.118 albertel 1455: my $advanced = $env{'user.adv'};
1456: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 1457: unless ($rolekey =~/^error\:/) {
1.171 albertel 1458: if ($rolekey =~ m-^user\.role.cc\./($match_domain)/($match_courseid)$-) {
1.113 raeburn 1459: my $tcourseid = $1.'_'.$2;
1460: my $trolecode = 'cc./'.$1.'/'.$2;
1461: my $twhere;
1.152 raeburn 1462: my $ttype;
1.212 bisitz 1463: my $tbg='LC_roles_is';
1.113 raeburn 1464: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1465: if (%newhash) {
1466: $twhere=$newhash{'description'}.
1.211 tempelho 1467: ' <span style="LC_fontsize_small">'.
1.212 bisitz 1468: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1).
1.211 tempelho 1469: '</span>';
1.153 raeburn 1470: $ttype = $newhash{'type'};
1.113 raeburn 1471: } else {
1472: $twhere=&mt('Currently not available');
1.118 albertel 1473: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 1474: }
1.153 raeburn 1475: my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113 raeburn 1476: $twhere.="<br />".&mt('Domain').":".$1;
1.212 bisitz 1477: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1.104 raeburn 1478: }
1479: }
1.152 raeburn 1480: return ($roletext);
1.104 raeburn 1481: }
1482:
1.192 raeburn 1483: sub adhoc_roles_row {
1.138 raeburn 1484: my ($dcdom,$rowtype) = @_;
1.212 bisitz 1485: my $output = &Apache::loncommon::continue_data_table_row()
1486: .' <td colspan="5">'
1487: .'<table><tr><td>'
1488: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1489: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1490: .'</td>'
1491: .'<td>';
1.193 raeburn 1492: my $selectcclink = &courselink($dcdom,$rowtype);
1.173 albertel 1493: my $ccrole = &Apache::lonnet::plaintext('cc');
1.182 www 1494: my $carole = &Apache::lonnet::plaintext('ca');
1.193 raeburn 1495: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1.212 bisitz 1496: $output.=&mt('[_1]: [_2]',$ccrole,$selectcclink)
1497: .'<br /></td>'
1498: .'<td> </td>'
1499: .'<td>'.&mt('[_1]: [_2]',$carole,$selectcalink).'<br /></td>'
1500: .'</tr></table>'
1501: .'</td>'
1502: .&Apache::loncommon::end_data_table_row();
1.108 raeburn 1503: return $output;
1504: }
1505:
1.104 raeburn 1506: sub recent_filename {
1507: my $area=shift;
1.149 www 1508: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1509: }
1510:
1.139 raeburn 1511: sub courseloadpage {
1512: my ($courseid) = @_;
1513: my $startpage;
1.144 albertel 1514: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1515: [$courseid.':courseinit']);
1.139 raeburn 1516: my ($tmp) = %entry_settings;
1.144 albertel 1517: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1518: $startpage = $entry_settings{$courseid.':courseinit'};
1519: }
1520: if ($startpage eq '') {
1521: if (exists($env{'environment.course_init_display'})) {
1522: $startpage = $env{'environment.course_init_display'};
1523: }
1524: }
1525: return $startpage;
1526: }
1527:
1.1 harris41 1528: 1;
1529: __END__
1.32 harris41 1530:
1531: =head1 NAME
1532:
1533: Apache::lonroles - User Roles Screen
1534:
1535: =head1 SYNOPSIS
1536:
1537: Invoked by /etc/httpd/conf/srm.conf:
1538:
1539: <Location /adm/roles>
1540: PerlAccessHandler Apache::lonacc
1541: SetHandler perl-script
1542: PerlHandler Apache::lonroles
1543: ErrorDocument 403 /adm/login
1544: ErrorDocument 500 /adm/errorhandler
1545: </Location>
1.64 bowersj2 1546:
1547: =head1 OVERVIEW
1548:
1549: =head2 Choosing Roles
1550:
1551: C<lonroles> is a handler that allows a user to switch roles in
1552: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1553: default role that a user has before selecting a role, as widely as
1554: possible, but certain handlers for example need specification which
1555: course they should act on, etc. Both in this scenario, and when the
1556: handler determines via C<lonnet>'s C<&allowed> function that a certain
1557: action is not allowed, C<lonroles> is used as error handler. This
1558: allows the user to select another role which may have permission to do
1559: what they were trying to do. C<lonroles> can also be accessed via the
1560: B<CRS> button in the Remote Control.
1561:
1562: =begin latex
1563:
1564: \begin{figure}
1565: \begin{center}
1566: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1567: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1568: \end{center}
1569: \end{figure}
1570:
1571: =end latex
1572:
1573: =head2 Role Initialization
1574:
1575: 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.
1.32 harris41 1576:
1577: =head1 INTRODUCTION
1578:
1579: This module enables a user to select what role he wishes to
1580: operate under (instructor, student, teaching assistant, course
1581: coordinator, etc). These roles are pre-established by the actions
1582: of upper-level users.
1583:
1584: This is part of the LearningOnline Network with CAPA project
1585: described at http://www.lon-capa.org.
1586:
1587: =head1 HANDLER SUBROUTINE
1588:
1589: This routine is called by Apache and mod_perl.
1590:
1591: =over 4
1592:
1593: =item *
1594:
1595: Roles Initialization (yes/no)
1596:
1597: =item *
1598:
1599: Get Error Message from Environment
1600:
1601: =item *
1602:
1603: Who is this?
1604:
1605: =item *
1606:
1607: Generate Page Output
1608:
1609: =item *
1610:
1611: Choice or no choice
1612:
1613: =item *
1614:
1615: Table
1616:
1617: =item *
1618:
1619: Privileges
1620:
1621: =back
1622:
1623: =cut
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