Annotation of loncom/auth/lonroles.pm, revision 1.231.4.5
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.231.4.5! raeburn 4: # $Id: lonroles.pm,v 1.231.4.4 2010/01/02 18:33:24 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: }
1.228 bisitz 160:
1.147 albertel 161: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
1.231.4.2 raeburn 162: {'redirect' => [1,$url]});
1.147 albertel 163: my $end_page = &Apache::loncommon::end_page();
164:
1.92 www 165: # Note to style police:
166: # This must only replace the spaces, nothing else, or it bombs elsewhere.
167: $url=~s/ /\%20/g;
1.93 albertel 168: $r->print(<<ENDREDIR);
1.147 albertel 169: $start_page
1.96 albertel 170: <script type="text/javascript">
1.225 bisitz 171: // <![CDATA[
1.62 matthew 172: $swinfo
1.225 bisitz 173: // ]]>
1.62 matthew 174: </script>
1.96 albertel 175: $navwindow
1.222 bisitz 176: <p>$msg</p>
1.147 albertel 177: $end_page
1.62 matthew 178: ENDREDIR
179: return;
180: }
181:
1.150 www 182: sub error_page {
183: my ($r,$error,$dest)=@_;
184: &Apache::loncommon::content_type($r,'text/html');
185: &Apache::loncommon::no_cache($r);
186: $r->send_http_header;
187: return OK if $r->header_only;
1.231.4.1 raeburn 188: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
1.225 bisitz 189: '<script type="text/javascript">'.
190: '// <![CDATA['.
191: &Apache::lonmenu::rawconfig().
192: '// ]]>'.
193: '</script>'.
194: '<p class="LC_error">'.&mt('The following problems occurred:').
1.231.4.1 raeburn 195: '<br />'.
1.150 www 196: $error.
1.231.4.1 raeburn 197: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
198: &Apache::loncommon::end_page());
1.150 www 199: }
200:
1.1 harris41 201: sub handler {
1.10 www 202:
1.1 harris41 203: my $r = shift;
204:
1.6 www 205: my $now=time;
1.118 albertel 206: my $then=$env{'user.login.time'};
1.226 raeburn 207: my $refresh=$env{'user.refresh.time'};
208: if (!$refresh) {
209: $refresh = $then;
210: }
1.6 www 211: my $envkey;
1.107 raeburn 212: my %dcroles = ();
213: my $numdc = &check_fordc(\%dcroles,$then);
1.148 albertel 214: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10 www 215:
1.6 www 216: # ================================================================== Roles Init
1.118 albertel 217: if ($env{'form.selectrole'}) {
1.188 www 218:
219: my $locknum=&Apache::lonnet::get_locks();
220: if ($locknum) { return 409; }
221:
1.134 www 222: if ($env{'form.newrole'}) {
223: $env{'form.'.$env{'form.newrole'}}=1;
224: }
1.118 albertel 225: if ($env{'request.course.id'}) {
1.185 raeburn 226: # Check if user is CC trying to select a course role
227: if ($env{'form.switchrole'}) {
228: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1.231.4.3 raeburn 229: &adhoc_course_role($refresh,$then);
1.185 raeburn 230: }
231: }
1.118 albertel 232: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 233: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 234: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 235: }
1.186 raeburn 236: &Apache::lonnet::appenv({"request.course.id" => '',
237: "request.course.fn" => '',
238: "request.course.uri" => '',
239: "request.course.sec" => '',
240: "request.role" => 'cm',
241: "request.role.adv" => $env{'user.adv'},
242: "request.role.domain" => $env{'user.domain'}});
1.182 www 243: # Check if user is a DC trying to enter a course or author space and needs privs to be created
1.107 raeburn 244: if ($numdc > 0) {
1.118 albertel 245: foreach my $envkey (keys %env) {
1.182 www 246: # Is this an ad-hoc CC-role?
1.146 raeburn 247: if (my ($domain,$coursenum) =
1.171 albertel 248: ($envkey =~ m-^form\.cc\./($match_domain)/($match_courseid)$-)) {
1.146 raeburn 249: if ($dcroles{$domain}) {
1.218 raeburn 250: &Apache::lonnet::check_adhoc_privs($domain,$coursenum,
1.230 raeburn 251: $then,$refresh,$now,'cc');
1.182 www 252: }
253: last;
254: }
1.193 raeburn 255: # Is this an ad-hoc CA-role?
1.183 www 256: if (my ($domain,$user) =
257: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
1.206 raeburn 258: if (($domain eq $env{'user.domain'}) && ($user eq $env{'user.name'})) {
259: delete($env{$envkey});
260: $env{'form.au./'.$domain.'/'} = 1;
261: my ($server_status,$home) = &check_author_homeserver($user,$domain);
262: if ($server_status eq 'switchserver') {
263: my $trolecode = 'au./'.$domain.'/';
264: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
265: $r->internal_redirect($switchserver);
266: }
267: last;
268: }
269: if (my ($castart,$caend) = ($env{'user.role.ca./'.$domain.'/'.$user} =~ /^(\d*)\.(\d*)$/)) {
270: if (((($castart) && ($castart < $now)) || !$castart) &&
271: ((!$caend) || (($caend) && ($caend > $now)))) {
272: my ($server_status,$home) = &check_author_homeserver($user,$domain);
273: if ($server_status eq 'switchserver') {
274: my $trolecode = 'ca./'.$domain.'/'.$user;
275: my $switchserver = '/adm/switchserver?otherserver='.$home.'&role='.$trolecode;
276: $r->internal_redirect($switchserver);
277: }
278: last;
279: }
280: }
281: # Check if author blocked ca-access
1.190 www 282: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
283: if ($blocked{'domcoord.author'} eq 'blocked') {
1.206 raeburn 284: delete($env{$envkey});
285: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
286: last;
1.190 www 287: }
1.193 raeburn 288: if ($dcroles{$domain}) {
289: my ($server_status,$home) = &check_author_homeserver($user,$domain);
290: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
1.218 raeburn 291: &Apache::lonnet::check_adhoc_privs($domain,$user,$then,
1.230 raeburn 292: $refresh,$now,'ca');
1.193 raeburn 293: if ($server_status eq 'switchserver') {
294: my $trolecode = 'ca./'.$domain.'/'.$user;
295: my $switchserver = '/adm/switchserver?'
296: .'otherserver='.$home.'&role='.$trolecode;
297: $r->internal_redirect($switchserver);
298: }
299: } else {
300: delete($env{$envkey});
301: }
1.183 www 302: } else {
303: delete($env{$envkey});
1.182 www 304: }
305: last;
306: }
1.107 raeburn 307: }
308: }
309:
1.118 albertel 310: foreach $envkey (keys %env) {
1.40 matthew 311: next if ($envkey!~/^user\.role\./);
1.102 raeburn 312: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
1.226 raeburn 313: &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
1.218 raeburn 314: \$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 315: if ($env{'form.'.$trolecode}) {
1.55 albertel 316: if ($tstatus eq 'is') {
317: $where=~s/^\///;
318: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 319: # check for course groups
320: my %coursegroups = &Apache::lonnet::get_active_groups(
321: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
322: my $cgrps = join(':',keys(%coursegroups));
323:
1.111 albertel 324: # store role if recent_role list being kept
1.118 albertel 325: if ($env{'environment.recentroles'}) {
1.158 albertel 326: my %frozen_roles =
327: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111 albertel 328: &Apache::lonhtmlcommon::store_recent('roles',
1.158 albertel 329: $trolecode,' ',$frozen_roles{$trolecode});
1.111 albertel 330: }
331:
332:
1.53 www 333: # check for keyed access
1.55 albertel 334: if (($role eq 'st') &&
1.118 albertel 335: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 336: # who is key authority?
337: my $authdom=$cdom;
338: my $authnum=$cnum;
1.118 albertel 339: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 340: ($authnum,$authdom)=
1.172 albertel 341: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 342: }
343: # check with key authority
344: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 345: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 346: $authdom,$authnum)) {
1.53 www 347: # there is no valid key
1.118 albertel 348: if ($env{'form.newkey'}) {
1.53 www 349: # student attempts to register a new key
1.89 www 350: &Apache::loncommon::content_type($r,'text/html');
351: &Apache::loncommon::no_cache($r);
352: $r->send_http_header;
353: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 354: my $start_page=&Apache::loncommon::start_page
1.89 www 355: ('Verifying Access Key to Unlock this Course');
1.147 albertel 356: my $end_page=&Apache::loncommon::end_page();
1.90 www 357: my $buttontext=&mt('Enter Course');
358: my $message=&mt('Successfully registered key');
359: my $assignresult=
360: &Apache::lonnet::assign_access_key(
1.118 albertel 361: $env{'form.newkey'},
1.90 www 362: $authdom,$authnum,
1.91 www 363: $cdom,$cnum,
1.118 albertel 364: $env{'user.domain'},
365: $env{'user.name'},
1.204 bisitz 366: &mt('Assigned from [_1] at [_2] for [_3]'
367: ,$ENV{'REMOTE_ADDR'}
368: ,&Apache::lonlocal::locallocaltime()
369: ,$trolecode)
370: );
1.90 www 371: unless ($assignresult eq 'ok') {
372: $assignresult=~s/^error\:\s*//;
373: $message=&mt($assignresult).
374: '<br /><a href="/adm/logout">'.
1.89 www 375: &mt('Logout').'</a>';
1.90 www 376: $buttontext=&mt('Re-Enter Key');
377: }
1.89 www 378: $r->print(<<ENDENTEREDKEY);
1.147 albertel 379: $start_page
1.179 raeburn 380: <script type="text/javascript">
1.225 bisitz 381: // <![CDATA[
1.89 www 382: $swinfo
1.225 bisitz 383: // ]]>
1.89 www 384: </script>
1.225 bisitz 385: <form action="" method="post">
1.89 www 386: <input type="hidden" name="selectrole" value="1" />
387: <input type="hidden" name="$trolecode" value="1" />
1.211 tempelho 388: <span class="LC_fontsize_large">$message</span><br />
1.89 www 389: <input type="submit" value="$buttontext" />
390: </form>
1.147 albertel 391: $end_page
1.89 www 392: ENDENTEREDKEY
393: return OK;
1.55 albertel 394: } else {
1.53 www 395: # print form to enter a new key
1.73 www 396: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 397: &Apache::loncommon::no_cache($r);
398: $r->send_http_header;
399: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 400: my $start_page=&Apache::loncommon::start_page
1.55 albertel 401: ('Enter Access Key to Unlock this Course');
1.147 albertel 402: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 403: $r->print(<<ENDENTERKEY);
1.147 albertel 404: $start_page
1.179 raeburn 405: <script type="text/javascript">
1.225 bisitz 406: // <![CDATA[
1.53 www 407: $swinfo
1.225 bisitz 408: // ]]>
1.53 www 409: </script>
1.225 bisitz 410: <form action="" method="post">
1.89 www 411: <input type="hidden" name="selectrole" value="1" />
412: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 413: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 414: <input type="submit" value="Enter key" />
415: </form>
1.147 albertel 416: $end_page
1.53 www 417: ENDENTERKEY
1.55 albertel 418: return OK;
419: }
420: }
421: }
1.118 albertel 422: &Apache::lonnet::log($env{'user.domain'},
423: $env{'user.name'},
424: $env{'user.home'},
1.87 www 425: "Role ".$trolecode);
1.101 albertel 426:
1.56 www 427: &Apache::lonnet::appenv(
1.186 raeburn 428: {'request.role' => $trolecode,
429: 'request.role.domain' => $cdom,
430: 'request.course.sec' => $csec,
431: 'request.course.groups' => $cgrps});
1.101 albertel 432: my $tadv=0;
1.62 matthew 433:
1.125 www 434: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152 raeburn 435: my $msg;
1.55 albertel 436: my ($furl,$ferr)=
437: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 438: if (($env{'form.orgurl'}) &&
439: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
440: my $dest=$env{'form.orgurl'};
1.219 raeburn 441: if ($env{'form.symb'}) {
442: if ($dest =~ /\?/) {
443: $dest .= '&';
444: } else {
445: $dest .= '?'
446: }
447: $dest .= 'symb='.$env{'form.symb'};
448: }
1.117 albertel 449: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 450: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.150 www 451: if (($ferr) && ($tadv)) {
452: &error_page($r,$ferr,$dest);
453: } else {
454: $r->internal_redirect($dest);
455: }
1.55 albertel 456: return OK;
457: } else {
1.155 albertel 458: if (!$env{'request.course.id'}) {
1.55 albertel 459: &Apache::lonnet::appenv(
1.186 raeburn 460: {"request.course.id" => $cdom.'_'.$cnum});
1.61 www 461: $furl='/adm/roles?tryagain=1';
1.221 bisitz 462: $msg='<p><span class="LC_error">'
463: .&mt('Could not initialize [_1] at this time.',
464: $env{'course.'.$cdom.'_'.$cnum.'.description'})
465: .'</span></p>'
466: .'<p>'.&mt('Please try again.').'</p>'
467: .'<p>'.$ferr.'</p>';
1.55 albertel 468: }
1.117 albertel 469: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 470: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.152 raeburn 471:
1.150 www 472: if (($ferr) && ($tadv)) {
473: &error_page($r,$ferr,$furl);
474: } else {
475: # Check to see if the user is a CC entering a course
476: # for the first time
477: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
478: if (substr($courseid, 0, 1) eq '/') {
479: $courseid = substr($courseid, 1);
480: }
481: $courseid =~ s/\//_/;
482: if ($role eq 'cc' && $env{'course.' . $courseid .
483: '.course.helper.not.run'}) {
484: $furl = "/adm/helper/course.initialization.helper";
485: # Send the user to the course they selected
486: } elsif ($env{'request.course.id'}) {
1.185 raeburn 487: if ($env{'form.destinationurl'}) {
488: my $dest = $env{'form.destinationurl'};
1.203 raeburn 489: if ($env{'form.destsymb'} ne '') {
490: my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
491: $dest .= '?symb='.$esc_symb;
492: }
1.185 raeburn 493: &redirect_user($r,&mt('Entering [_1]',
494: $env{'course.'.$courseid.'.description'}),
495: $dest,$msg,
496: $env{'environment.remotenavmap'});
497: return OK;
498: }
1.150 www 499: if (&Apache::lonnet::allowed('whn',
500: $env{'request.course.id'})
501: || &Apache::lonnet::allowed('whn',
502: $env{'request.course.id'}.'/'
503: .$env{'request.course.sec'})
504: ) {
505: my $startpage = &courseloadpage($courseid);
506: unless ($startpage eq 'firstres') {
1.204 bisitz 507: $msg = &mt('Entering [_1] ...',
1.162 albertel 508: $env{'course.'.$courseid.'.description'});
1.150 www 509: &redirect_user($r,&mt('New in course'),
510: '/adm/whatsnew?refpage=start',$msg,
511: $env{'environment.remotenavmap'});
512: return OK;
513: }
514: }
515: }
1.151 www 516: # Are we allowed to look at the first resource?
1.169 albertel 517: if ($furl !~ m|^/adm/|) {
1.151 www 518: # Guess not ...
519: $furl=&Apache::lonpageflip::first_accessible_resource();
520: }
1.162 albertel 521: $msg = &mt('Entering [_1] ...',
522: $env{'course.'.$courseid.'.description'});
523: &redirect_user($r,&mt('Entering [_1]',
524: $env{'course.'.$courseid.'.description'}),
1.150 www 525: $furl,$msg,
526: $env{'environment.remotenavmap'});
1.58 bowersj2 527: }
1.124 albertel 528: return OK;
1.55 albertel 529: }
530: }
1.62 matthew 531: #
532: # Send the user to the construction space they selected
1.125 www 533: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 534: my $redirect_url = '/priv/';
535: if ($role eq 'au') {
1.118 albertel 536: $redirect_url.=$env{'user.name'};
1.62 matthew 537: } else {
538: $where =~ /\/(.*)$/;
539: $redirect_url .= $1;
540: }
541: $redirect_url .= '/';
1.78 sakharuk 542: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 543: $redirect_url);
544: return OK;
545: }
1.104 raeburn 546: if ($role eq 'dc') {
1.108 raeburn 547: my $redirect_url = '/adm/menu/';
548: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 549: $redirect_url);
1.108 raeburn 550: return OK;
1.104 raeburn 551: }
1.220 raeburn 552: if ($role eq 'sc') {
553: my $redirect_url = '/adm/grades?command=scantronupload';
554: &redirect_user($r,&mt('Loading Data Upload Page'),
555: $redirect_url);
556: return OK;
557: }
1.55 albertel 558: }
559: }
1.6 www 560: }
1.40 matthew 561: }
1.44 www 562:
1.10 www 563:
1.6 www 564: # =============================================================== No Roles Init
1.10 www 565:
1.73 www 566: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 567: &Apache::loncommon::no_cache($r);
1.10 www 568: $r->send_http_header;
569: return OK if $r->header_only;
570:
1.224 raeburn 571: my $crumbtext = 'User Roles';
572: my $pagetitle = 'My Roles';
573: my $recent = &mt('Recent Roles');
574: my $show_course=&Apache::loncommon::show_course();
575: if ($show_course) {
576: $crumbtext = 'Courses';
577: $pagetitle = 'My Courses';
578: $recent = &mt('Recent Courses');
579: }
580: my $brcrum =[{href=>"/adm/roles",text=>$crumbtext}];
1.52 www 581: my $swinfo=&Apache::lonmenu::rawconfig();
1.224 raeburn 582: my $start_page=&Apache::loncommon::start_page($pagetitle,undef,{bread_crumbs=>$brcrum});
1.134 www 583: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 584: $standby=~s/\n/\\n/g;
1.184 raeburn 585: 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 586:
1.10 www 587: $r->print(<<ENDHEADER);
1.147 albertel 588: $start_page
1.163 www 589: <br />
1.179 raeburn 590: <noscript>
591: $noscript
592: </noscript>
593: <script type="text/javascript">
1.225 bisitz 594: // <![CDATA[
1.26 www 595: $swinfo
596: window.focus();
1.134 www 597:
598: active=true;
599:
600: function enterrole (thisform,rolecode,buttonname) {
601: if (active) {
602: active=false;
603: document.title='$standby';
604: window.status='$standby';
605: thisform.newrole.value=rolecode;
606: thisform.submit();
607: } else {
608: alert('$standby');
609: }
610: }
1.225 bisitz 611: // ]]>
1.26 www 612: </script>
1.10 www 613: ENDHEADER
1.6 www 614:
1.2 www 615: # ------------------------------------------ Get Error Message from Environment
616:
1.118 albertel 617: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
618: if ($env{'user.error.msg'}) {
1.55 albertel 619: $r->log_reason(
1.118 albertel 620: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 621: }
1.1 harris41 622:
1.61 www 623: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 624:
1.118 albertel 625: my $advanced=$env{'user.adv'};
1.61 www 626: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 627: my $tryagain=$env{'form.tryagain'};
1.209 raeburn 628: my $reinit=$env{'user.reinit'};
629: delete $env{'user.reinit'};
1.6 www 630:
1.2 www 631: # -------------------------------------------------------- Generate Page Output
1.6 www 632: # --------------------------------------------------------------- Error Header?
1.2 www 633: if ($error) {
1.187 bisitz 634: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
1.174 albertel 635: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
636: if ($priv ne '') {
1.187 bisitz 637: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
1.174 albertel 638: }
639: if ($fn ne '') {
1.187 bisitz 640: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
1.174 albertel 641: }
642: if ($msg ne '') {
1.187 bisitz 643: $r->print(&mt('Action : ').$msg."\n");
1.174 albertel 644: }
645: $r->print("</pre><hr />");
1.120 albertel 646: my $url=$fn;
647: my $last;
648: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
649: &GDBM_READER(),0640)) {
650: $last=$hash{'last_known'};
651: untie(%hash);
652: }
1.149 www 653: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 654:
655: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
656: &Apache::lonenc::check_encrypt($fn));
1.2 www 657: } else {
1.118 albertel 658: if ($env{'user.error.msg'}) {
1.209 raeburn 659: if ($reinit) {
660: $r->print(
661: '<h3><span class="LC_error">'.
1.231.4.5! raeburn 662: &mt('As your session file for the course or community has expired, you will need to re-select the course.').'</span></h3>');
1.209 raeburn 663: } else {
664: $r->print(
1.157 albertel 665: '<h3><span class="LC_error">'.
1.231.4.5! raeburn 666: &mt('You need to choose another user role or enter a specific course or community for this function').'</span></h3>');
1.209 raeburn 667: }
668: }
1.2 www 669: }
1.6 www 670: # -------------------------------------------------------- Choice or no choice?
1.2 www 671: if ($nochoose) {
1.177 www 672: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
673: &mt('This action is currently not authorized.').'</span>'.
1.150 www 674: &Apache::loncommon::end_page());
675: return OK;
1.6 www 676: } else {
1.18 www 677: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
678: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 679: }
1.84 www 680: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 681: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
682: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 683: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 684: }
1.226 raeburn 685:
686: my (%roletext,%sortrole,%roleclass,%futureroles,%timezones);
687: my ($countactive,$countfuture,$inrole,$possiblerole) =
688: &gather_roles($then,$refresh,$now,$reinit,$nochoose,\%roletext,\%sortrole,\%roleclass,
689: \%futureroles,\%timezones);
690:
691: $refresh = $now;
692: &Apache::lonnet::appenv({'user.refresh.time' => $refresh});
1.196 raeburn 693: if ($env{'user.adv'}) {
694: $r->print(
1.212 bisitz 695: '<p><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.196 raeburn 696: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.212 bisitz 697: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" /></p>');
1.196 raeburn 698: } else {
699: if ($countactive > 0) {
1.216 raeburn 700: &queued_selfenrollment($r);
1.196 raeburn 701: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 702: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.231.4.4 raeburn 703:
704: $r->print(
705: '<p>'
706: .&mt('[_1]Visit the [_2]Course/Community Catalog[_3]'
707: .' to view all [_4] LON-CAPA courses and communities.'
708: ,'<b>'
709: ,'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
710: ,'</a></b>',$domdesc)
711: .'<br />'
712: .&mt('If a course or community is [_1]not[_2] in your list of current courses and communities below,'
713: .' you may be able to enroll if self-enrollment is permitted.'
714: ,'<b>','</b>')
715: .'</p>'
716: );
1.196 raeburn 717: }
718: }
719:
1.84 www 720: # No active roles
721: if ($countactive==0) {
722: if ($inrole) {
1.231.4.5! raeburn 723: $r->print('<h2>'.&mt('Currently no additional roles, courses or communities').'</h2>');
1.84 www 724: } else {
1.231.4.5! raeburn 725: $r->print('<h2>'.&mt('Currently no active roles, courses or communities').'</h2>');
1.84 www 726: }
1.191 raeburn 727: &findcourse_advice($r);
1.231.4.5! raeburn 728: &requestcourse_advice($r);
1.191 raeburn 729: $r->print('</form>');
730: if ($countfuture) {
731: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
732: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
733: $nochoose);
734: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
735: \%roletext);
736: my $tremark='';
1.212 bisitz 737: my $tbg;
1.191 raeburn 738: if ($env{'request.role'} eq 'cm') {
1.212 bisitz 739: $tbg="LC_roles_selected";
1.204 bisitz 740: $tremark=&mt('Currently selected.').' ';
1.191 raeburn 741: } else {
1.212 bisitz 742: $tbg="LC_roles_is";
1.191 raeburn 743: }
1.212 bisitz 744: $r->print(&Apache::loncommon::start_data_table_row()
745: .'<td class="'.$tbg.'"> </td>'
746: .'<td colspan="3">'
747: .&mt('No role specified')
748: .'</td>'
749: .'<td>'.$tremark.' </td>'
750: .&Apache::loncommon::end_data_table_row()
751: );
1.191 raeburn 752:
1.212 bisitz 753: $r->print(&Apache::loncommon::end_data_table());
1.191 raeburn 754: }
755: $r->print(&Apache::loncommon::end_page());
1.84 www 756: return OK;
757: }
758: # ----------------------------------------------------------------------- Table
1.224 raeburn 759: unless ((!&Apache::loncommon::show_course()) || ($nochoose) || ($countactive==1)) {
1.173 albertel 760: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.84 www 761: }
1.229 raeburn 762: if ($env{'form.destinationurl'}) {
763: $r->print('<input type="hidden" name="destinationurl" value="'.
764: $env{'form.destinationurl'}.'" />');
765: if ($env{'form.destsymb'} ne '') {
766: $r->print('<input type="hidden" name="destsymb" value="'.
767: $env{'form.destsymb'}.'" />');
768: }
769: }
1.191 raeburn 770: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1.118 albertel 771: if ($env{'environment.recentroles'}) {
1.111 albertel 772: my %recent_roles =
1.118 albertel 773: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 774: my $output='';
775: foreach (sort(keys(%recent_roles))) {
1.223 raeburn 776: if (ref($roletext{'user.role.'.$_}) eq 'ARRAY') {
777: $output.= &Apache::loncommon::start_data_table_row().
778: $roletext{'user.role.'.$_}->[0].
779: &Apache::loncommon::end_data_table_row().
780: &Apache::loncommon::continue_data_table_row().
781: $roletext{'user.role.'.$_}->[1].
782: &Apache::loncommon::end_data_table_row();
1.170 albertel 783: if ($_ =~ m-dc\./($match_domain)/-
784: && $dcroles{$1}) {
1.192 raeburn 785: $output .= &adhoc_roles_row($1,'recent');
1.133 albertel 786: }
1.113 raeburn 787: } elsif ($numdc > 0) {
788: unless ($_ =~/^error\:/) {
789: $output.=&display_cc_role('user.role.'.$_);
790: }
791: }
1.111 albertel 792: }
793: if ($output) {
1.212 bisitz 794: $r->print(&Apache::loncommon::start_data_table_empty_row()
795: .'<td align="center" colspan="5">'
1.224 raeburn 796: .$recent
1.212 bisitz 797: .'</td>'
798: .&Apache::loncommon::end_data_table_empty_row()
799: );
1.111 albertel 800: $r->print($output);
1.114 raeburn 801: $doheaders ++;
1.111 albertel 802: }
803: }
804:
1.104 raeburn 805: if ($numdc > 0) {
1.112 raeburn 806: $r->print(&coursepick_jscript());
1.193 raeburn 807: $r->print(&Apache::loncommon::coursebrowser_javascript().
808: &Apache::loncommon::authorbrowser_javascript());
1.108 raeburn 809: }
1.191 raeburn 810: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1.202 raeburn 811: if ($countactive > 1) {
812: my $tremark='';
1.212 bisitz 813: my $tbg;
1.202 raeburn 814: if ($env{'request.role'} eq 'cm') {
1.212 bisitz 815: $tbg="LC_roles_selected";
1.204 bisitz 816: $tremark=&mt('Currently selected.').' ';
1.202 raeburn 817: } else {
1.212 bisitz 818: $tbg="LC_roles_is";
1.202 raeburn 819: }
1.212 bisitz 820: $r->print(&Apache::loncommon::start_data_table_row());
1.202 raeburn 821: unless ($nochoose) {
822: if ($env{'request.role'} ne 'cm') {
1.212 bisitz 823: $r->print('<td class="'.$tbg.'"><input type="submit" value="'.
1.202 raeburn 824: &mt('Select').'" name="cm" /></td>');
825: } else {
1.212 bisitz 826: $r->print('<td class="'.$tbg.'"> </td>');
1.202 raeburn 827: }
828: }
1.212 bisitz 829: $r->print('<td colspan="3">'
830: .&mt('No role specified')
831: .'</td>'
832: .'<td>'.$tremark.' </td>'
833: .&Apache::loncommon::end_data_table_row()
834: );
1.202 raeburn 835: }
1.212 bisitz 836: $r->print(&Apache::loncommon::end_data_table());
1.4 www 837: unless ($nochoose) {
838: $r->print("</form>\n");
839: }
1.22 harris41 840: # ------------------------------------------------------------ Privileges Info
1.118 albertel 841: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.212 bisitz 842: $r->print('<hr /><h2>'.&mt('Current Privileges').'</h2>');
1.175 albertel 843: $r->print(&privileges_info());
1.4 www 844: }
1.66 www 845: $r->print(&Apache::lonnet::getannounce());
1.65 www 846: if ($advanced) {
1.201 raeburn 847: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.231 bisitz 848: $r->print('<p><small><i>'
849: .&mt('This LON-CAPA server is version [_1]',$r->dir_config('lonVersion'))
850: .'</i><br />'
851: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1.201 raeburn 852: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
1.231.4.4 raeburn 853: .&mt('Course/Community Catalog')
1.225 bisitz 854: .'</a></small></p>');
1.65 www 855: }
1.147 albertel 856: $r->print(&Apache::loncommon::end_page());
1.1 harris41 857: return OK;
1.102 raeburn 858: }
859:
1.226 raeburn 860: sub gather_roles {
861: my ($then,$refresh,$now,$reinit,$nochoose,$roletext,$sortrole,$roleclass,$futureroles,$timezones) = @_;
862: my ($countactive,$countfuture,$inrole,$possiblerole) = (0,0,0,'');
863: my $advanced = $env{'user.adv'};
864: my $tryagain = $env{'form.tryagain'};
865: foreach my $envkey (sort(keys(%env))) {
866: my $button = 1;
867: my $switchserver='';
868: my ($role_text,$role_text_end,$sortkey);
869: if ($envkey=~/^user\.role\./) {
870: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
871: &Apache::lonnet::role_status($envkey,$then,$refresh,$now,\$role,\$where,
872: \$trolecode,\$tstatus,\$tstart,\$tend);
873: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
874: my $timezone = &role_timezone($where,$timezones);
875: $tremark='';
876: $tpstart=' ';
877: $tpend=' ';
878: if ($tstart) {
879: $tpstart=&Apache::lonlocal::locallocaltime($tstart,$timezone);
880: }
881: if ($tend) {
882: $tpend=&Apache::lonlocal::locallocaltime($tend,$timezone);
883: }
884: if ($env{'request.role'} eq $trolecode) {
885: $tstatus='selected';
886: }
887: my $tbg;
888: if (($tstatus eq 'is')
889: || ($tstatus eq 'selected')
890: || ($tstatus eq 'future')
891: || ($env{'form.showall'})) {
892: if ($tstatus eq 'is') {
893: $tbg='LC_roles_is';
894: $possiblerole=$trolecode;
895: $countactive++;
896: } elsif ($tstatus eq 'future') {
897: $tbg='LC_roles_future';
898: $button=0;
899: $futureroles->{$trolecode} = $tstart.':'.$tend;
900: $countfuture ++;
901: } elsif ($tstatus eq 'expired') {
902: $tbg='LC_roles_expired';
903: $button=0;
904: } elsif ($tstatus eq 'will_not') {
905: $tbg='LC_roles_will_not';
906: $tremark.=&mt('Expired after logout.').' ';
907: } elsif ($tstatus eq 'selected') {
908: $tbg='LC_roles_selected';
909: $inrole=1;
910: $countactive++;
911: $tremark.=&mt('Currently selected.').' ';
912: }
913: my $trole;
914: if ($role =~ /^cr\//) {
915: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
916: if ($tremark) { $tremark.='<br />'; }
917: $tremark.=&mt('Defined by [_1] at [_2].',$rauthor,$rdomain);
918: }
919: $trole=Apache::lonnet::plaintext($role);
920: my $ttype;
921: my $twhere;
922: my ($tdom,$trest,$tsection)=
923: split(/\//,Apache::lonnet::declutter($where));
924: # First, Co-Authorship roles
925: if (($role eq 'ca') || ($role eq 'aa')) {
926: my $home = &Apache::lonnet::homeserver($trest,$tdom);
927: my $allowed=0;
928: my @ids=&Apache::lonnet::current_machine_ids();
929: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
930: if (!$allowed) {
931: $button=0;
932: $switchserver='otherserver='.$home.'&role='.$trolecode;
933: }
934: #next if ($home eq 'no_host');
935: $home = &Apache::lonnet::hostname($home);
936: $ttype='Construction Space';
937: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
938: ': '.$tdom.'<br />'.
939: ' '.&mt('Server').': '.$home;
940: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
941: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
942: $sortkey=$role."$trest:$tdom";
943: } elsif ($role eq 'au') {
944: # Authors
945: my $home = &Apache::lonnet::homeserver
946: ($env{'user.name'},$env{'user.domain'});
947: my $allowed=0;
948: my @ids=&Apache::lonnet::current_machine_ids();
949: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
950: if (!$allowed) {
951: $button=0;
952: $switchserver='otherserver='.$home.'&role='.$trolecode;
953: }
954: #next if ($home eq 'no_host');
955: $home = &Apache::lonnet::hostname($home);
956: $ttype='Construction Space';
957: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
958: ': '.$home;
959: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
960: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
961: $sortkey=$role;
962: } elsif ($trest) {
963: my $tcourseid=$tdom.'_'.$trest;
964: $ttype = &Apache::loncommon::course_type($tcourseid);
965: $trole = &Apache::lonnet::plaintext($role,$ttype);
966: if ($env{'course.'.$tcourseid.'.description'}) {
967: $twhere=$env{'course.'.$tcourseid.'.description'};
968: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
969: unless ($twhere eq &mt('Currently not available')) {
970: $twhere.=' <span class="LC_fontsize_small">'.
971: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
972: '</span>';
973: }
974: } else {
975: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
976: if (%newhash) {
977: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
978: "\0".$envkey;
979: $twhere=$newhash{'description'}.
980: ' <span class="LC_fontsize_small">'.
981: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom).
982: '</span>';
983: $ttype = $newhash{'type'};
984: $trole = &Apache::lonnet::plaintext($role,$ttype);
985: } else {
986: $twhere=&mt('Currently not available');
987: $env{'course.'.$tcourseid.'.description'}=$twhere;
988: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
989: $ttype = 'Unavailable';
990: }
991: }
992: if ($tsection) {
993: $twhere.='<br />'.&mt('Section').': '.$tsection;
994: }
995: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
996: } elsif ($tdom) {
997: $ttype='Domain';
998: $twhere=$tdom;
999: $sortkey=$role.$twhere;
1000: } else {
1001: $ttype='System';
1002: $twhere=&mt('system wide');
1003: $sortkey=$role.$twhere;
1004: }
1005: ($role_text,$role_text_end) =
1006: &build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,
1007: $advanced,$tremark,$tbg,$trole,$twhere,$tpstart,
1008: $tpend,$nochoose,$button,$switchserver,$reinit);
1009: $roletext->{$envkey}=[$role_text,$role_text_end];
1010: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
1011: $sortrole->{$sortkey}=$envkey;
1012: $roleclass->{$envkey}=$ttype;
1013: }
1014: }
1015: }
1016: return ($countactive,$countfuture,$inrole,$possiblerole);
1017: }
1018:
1.215 raeburn 1019: sub role_timezone {
1020: my ($where,$timezones) = @_;
1021: my $timezone;
1022: if (ref($timezones) eq 'HASH') {
1023: if ($where =~ m{^/($match_domain)/($match_courseid)}) {
1024: my $cdom = $1;
1025: my $cnum = $2;
1026: if ($cdom && $cnum) {
1027: if (!exists($timezones->{$cdom.'_'.$cnum})) {
1028: my %timehash =
1029: &Apache::lonnet::get('environment',['timezone'],$cdom,$cnum);
1030: if ($timehash{'timezone'} eq '') {
1031: if (!exists($timezones->{$cdom})) {
1032: my %domdefaults =
1033: &Apache::lonnet::get_domain_defaults($cdom);
1034: if ($domdefaults{'timezone_def'} eq '') {
1035: $timezones->{$cdom} = 'local';
1036: } else {
1037: $timezones->{$cdom} = $domdefaults{'timezone_def'};
1038: }
1039: }
1040: $timezones->{$cdom.'_'.$cnum} = $timezones->{$cdom};
1041: } else {
1042: $timezones->{$cdom.'_'.$cnum} =
1043: &Apache::lonlocal::gettimezone($timehash{'timezone'});
1044: }
1045: }
1046: $timezone = $timezones->{$cdom.'_'.$cnum};
1047: }
1048: } else {
1049: my ($tdom) = ($where =~ m{^/($match_domain)});
1050: if ($tdom) {
1051: if (!exists($timezones->{$tdom})) {
1052: my %domdefaults = &Apache::lonnet::get_domain_defaults($tdom);
1053: if ($domdefaults{'timezone_def'} eq '') {
1054: $timezones->{$tdom} = 'local';
1055: } else {
1056: $timezones->{$tdom} = $domdefaults{'timezone_def'};
1057: }
1058: }
1059: $timezone = $timezones->{$tdom};
1060: }
1061: }
1062: if ($timezone eq 'local') {
1063: $timezone = undef;
1064: }
1065: }
1066: return $timezone;
1067: }
1068:
1.191 raeburn 1069: sub roletable_headers {
1070: my ($r,$roleclass,$sortrole,$nochoose) = @_;
1071: my $doheaders;
1072: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
1.212 bisitz 1073: $r->print('<br />'
1074: .&Apache::loncommon::start_data_table()
1075: .&Apache::loncommon::start_data_table_header_row()
1076: );
1.191 raeburn 1077: if (!$nochoose) { $r->print('<th> </th>'); }
1.212 bisitz 1078: $r->print('<th>'.&mt('User Role').'</th>'
1079: .'<th>'.&mt('Extent').'</th>'
1080: .'<th>'.&mt('Start').'</th>'
1081: .'<th>'.&mt('End').'</th>'
1082: .&Apache::loncommon::end_data_table_header_row()
1083: );
1.191 raeburn 1084: $doheaders=-1;
1085: my @roletypes = &roletypes();
1086: foreach my $type (@roletypes) {
1087: my $haverole=0;
1088: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1089: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1090: $haverole=1;
1091: }
1092: }
1093: if ($haverole) { $doheaders++; }
1094: }
1095: }
1096: return $doheaders;
1097: }
1098:
1099: sub roletypes {
1100: my @types = ('Domain','Construction Space','Course','Unavailable','System');
1101: return @types;
1102: }
1103:
1104: sub print_rolerows {
1105: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
1106: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
1107: my @types = &roletypes();
1108: foreach my $type (@types) {
1109: my $output;
1110: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
1111: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
1112: if (ref($roletext) eq 'HASH') {
1.223 raeburn 1113: if (ref($roletext->{$sortrole->{$which}}) eq 'ARRAY') {
1114: $output.= &Apache::loncommon::start_data_table_row().
1115: $roletext->{$sortrole->{$which}}->[0].
1116: &Apache::loncommon::end_data_table_row().
1117: &Apache::loncommon::continue_data_table_row().
1118: $roletext->{$sortrole->{$which}}->[1].
1119: &Apache::loncommon::end_data_table_row();
1120: }
1.191 raeburn 1121: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
1122: if (ref($dcroles) eq 'HASH') {
1123: if ($dcroles->{$1}) {
1.192 raeburn 1124: $output .= &adhoc_roles_row($1,'');
1.191 raeburn 1125: }
1126: }
1127: }
1128: }
1129: }
1130: }
1131: if ($output) {
1132: if ($doheaders > 0) {
1.212 bisitz 1133: $r->print(&Apache::loncommon::start_data_table_empty_row()
1134: .'<td align="center" colspan="5">'
1135: .&mt($type)
1136: .'</td>'
1137: .&Apache::loncommon::end_data_table_empty_row()
1138: );
1.191 raeburn 1139: }
1140: $r->print($output);
1141: }
1142: }
1143: }
1144: }
1145:
1146: sub findcourse_advice {
1147: my ($r) = @_;
1148: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 1149: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.200 raeburn 1150: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1.191 raeburn 1151: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
1152: <ul>
1153: <li>'.&mt('The course has yet to be created.').'</li>
1154: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
1155: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
1156: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
1157: <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>
1158: </ul>');
1159: } else {
1160: $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 />');
1161: }
1.231.4.5! raeburn 1162: $r->print('<h3>'.&mt('Self-Enrollment').'</h3>'.
! 1163: '<p>'.&mt('The [_1]Course/Community Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created, as well as any communities in the domain.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
! 1164: $r->print(&mt('You can search for courses and communities which permit self-enrollment, if you would like to enroll in one.').'</p>');
1.216 raeburn 1165: &queued_selfenrollment($r);
1166: return;
1167: }
1168:
1.231.4.5! raeburn 1169: sub requestcourse_advice {
! 1170: my ($r) = @_;
! 1171: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
! 1172: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
! 1173: my (%can_request,%request_doms);
! 1174: &Apache::lonnet::check_can_request($env{'user.domain'},\%can_request,\%request_doms);
! 1175: if (keys(%request_doms) > 0) {
! 1176: my ($types,$typename) = &Apache::loncommon::course_types();
! 1177: if ((ref($types) eq 'ARRAY') && (ref($typename) eq 'HASH')) {
! 1178: $r->print('<h3>'.&mt('Request creation of a course or community').'</h3>'.
! 1179: '<p>'.&mt('You have rights to request the creation of courses and/or communities in the following domain(s):').'<ul>');
! 1180: my (@reqdoms,@reqtypes);
! 1181: foreach my $type (sort(keys(%request_doms))) {
! 1182: push(@reqtypes,$type);
! 1183: if (ref($request_doms{$type}) eq 'ARRAY') {
! 1184: my $domstr = join(', ',map { &Apache::lonnet::domain($_) } sort(@{$request_doms{$type}}));
! 1185: $r->print(
! 1186: '<li>'
! 1187: .&mt('[_1]'.$typename->{$type}.'[_2] in domain: [_3]',
! 1188: '<i>',
! 1189: '</i>',
! 1190: '<b>'.$domstr.'</b>')
! 1191: .'</li>'
! 1192: );
! 1193: foreach my $dom (@{$request_doms{$type}}) {
! 1194: unless (grep(/^\Q$dom\E/,@reqdoms)) {
! 1195: push(@reqdoms,$dom);
! 1196: }
! 1197: }
! 1198: }
! 1199: }
! 1200: my @showtypes;
! 1201: foreach my $type (@{$types}) {
! 1202: if (grep(/^\Q$type\E$/,@reqtypes)) {
! 1203: push(@showtypes,$type);
! 1204: }
! 1205: }
! 1206: my $requrl = '/adm/requestcourse';
! 1207: if (@reqdoms == 1) {
! 1208: $requrl .= '?showdom='.$reqdoms[0];
! 1209: }
! 1210: if (@showtypes > 0) {
! 1211: $requrl.=(($requrl=~/\?/)?'&':'?').'crstype='.$showtypes[0];
! 1212: }
! 1213: if (@reqdoms == 1 || @showtypes > 0) {
! 1214: $requrl .= '&state=crstype&action=new';
! 1215: }
! 1216: $r->print('</ul>'.&mt('Use the [_1]request form[_2] to submit a request for creation of a new course or community.','<a href="'.$requrl.'">','</a>').'</p>');
! 1217: }
! 1218: }
! 1219: return;
! 1220: }
! 1221:
1.216 raeburn 1222: sub queued_selfenrollment {
1223: my ($r) = @_;
1224: my %selfenrollrequests = &Apache::lonnet::dump('selfenrollrequests');
1225: my %reqs_by_date;
1226: foreach my $item (keys(%selfenrollrequests)) {
1227: if (ref($selfenrollrequests{$item}) eq 'HASH') {
1228: if ($selfenrollrequests{$item}{'status'} eq 'request') {
1229: if ($selfenrollrequests{$item}{'timestamp'}) {
1230: push(@{$reqs_by_date{$selfenrollrequests{$item}{'timestamp'}}},$item);
1231: }
1232: }
1233: }
1234: }
1235: if (keys(%reqs_by_date)) {
1236: my $rolename = &Apache::lonnet::plaintext('st');
1237: $r->print('<b>'.&mt('Enrollment requests pending Course Coordinator approval').'</b><br />'.
1238: &Apache::loncommon::start_data_table().
1239: &Apache::loncommon::start_data_table_header_row().
1240: '<th>'.&mt('Date requested').'</th><th>'.&mt('Course title').'</th>'.
1241: '<th>'.&mt('User role').'</th><th>'.&mt('Section').'</th>'.
1242: &Apache::loncommon::end_data_table_header_row());
1243: my @sorted = sort { $a <=> $b } (keys(%reqs_by_date));
1244: foreach my $item (@sorted) {
1245: if (ref($reqs_by_date{$item}) eq 'ARRAY') {
1246: foreach my $crs (@{$reqs_by_date{$item}}) {
1247: my %courseinfo = &Apache::lonnet::coursedescription($crs);
1248: my $usec = $selfenrollrequests{$crs}{'section'};
1249: if ($usec eq '') {
1250: $usec = &mt('No section');
1251: }
1252: $r->print(&Apache::loncommon::start_data_table_row().
1253: '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
1254: '<td>'.$courseinfo{'description'}.'</td>'.
1255: '<td>'.$rolename.'</td><td>'.$usec.'</td>'.
1256: &Apache::loncommon::end_data_table_row());
1257: }
1258: }
1259: }
1260: $r->print(&Apache::loncommon::end_data_table());
1261: }
1.191 raeburn 1262: return;
1263: }
1264:
1.175 albertel 1265: sub privileges_info {
1266: my ($which) = @_;
1267: my $output;
1268:
1269: $which ||= $env{'request.role'};
1270:
1271: foreach my $envkey (sort(keys(%env))) {
1272: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
1273:
1274: my $where=$1;
1275: my $ttype;
1276: my $twhere;
1277: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
1278: if ($trest) {
1279: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1280: $ttype='Construction Space';
1281: $twhere='User: '.$trest.', Domain: '.$tdom;
1282: } else {
1283: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
1284: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1285: if ($tsec) {
1286: my $sec_type = 'Section';
1287: if (exists($env{"user.role.gr.$where"})) {
1288: $sec_type = 'Group';
1289: }
1290: $twhere.=' ('.$sec_type.': '.$tsec.')';
1291: }
1292: }
1293: } elsif ($tdom) {
1294: $ttype='Domain';
1295: $twhere=$tdom;
1296: } else {
1297: $ttype='System';
1298: $twhere='/';
1299: }
1.204 bisitz 1300: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1.175 albertel 1301: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
1302: next if (!$priv);
1303:
1304: my ($prv,$restr)=split(/\&/,$priv);
1305: my $trestr='';
1306: if ($restr ne 'F') {
1307: $trestr.=' ('.
1308: join(', ',
1309: map { &Apache::lonnet::plaintext($_) }
1310: (split('',$restr))).') ';
1311: }
1312: $output .= "\n\t".
1313: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
1314: }
1315: $output .= "\n".'</ul>';
1316: }
1317: return $output;
1318: }
1319:
1.110 raeburn 1320: sub build_roletext {
1.212 bisitz 1321: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver,$reinit) = @_;
1.223 raeburn 1322: my ($roletext,$roletext_end);
1.132 albertel 1323: my $is_dc=($trolecode =~ m/^dc\./);
1324: my $rowspan=($is_dc) ? ''
1325: : ' rowspan="2" ';
1326:
1.110 raeburn 1327: unless ($nochoose) {
1.134 www 1328: my $buttonname=$trolecode;
1329: $buttonname=~s/\W//g;
1.110 raeburn 1330: if (!$button) {
1331: if ($switchserver) {
1.212 bisitz 1332: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'
1333: .'<a href="/adm/switchserver?'.$switchserver.'">'
1334: .&mt('Switch Server')
1335: .'</a></td>';
1.110 raeburn 1336: } else {
1.212 bisitz 1337: $roletext.=('<td'.$rowspan.' class="'.$tbg.'"> </td>');
1.110 raeburn 1338: }
1339: } elsif ($tstatus eq 'is') {
1.212 bisitz 1340: $roletext.='<td'.$rowspan.' class="'.$tbg.'">'.
1341: '<input name="'.$buttonname.'" type="button" value="'.
1.225 bisitz 1342: &mt('Select').'" onclick="javascript:enterrole(this.form,\''.
1.192 raeburn 1343: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1344: } elsif ($tryagain) {
1345: $roletext.=
1.212 bisitz 1346: '<td'.$rowspan.' class="'.$tbg.'">'.
1347: '<input name="'.$buttonname.'" type="button" value="'.
1.225 bisitz 1348: &mt('Try Selecting Again').'" onclick="javascript:enterrole(this.form,\''.
1.192 raeburn 1349: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1350: } elsif ($advanced) {
1351: $roletext.=
1.212 bisitz 1352: '<td'.$rowspan.' class="'.$tbg.'">'.
1353: '<input name="'.$buttonname.'" type="button" value="'.
1.225 bisitz 1354: &mt('Re-Initialize').'" onclick="javascript:enterrole(this.form,\''.
1.192 raeburn 1355: $trolecode."','".$buttonname.'\');" /></td>';
1.209 raeburn 1356: } elsif ($reinit) {
1357: $roletext.=
1.212 bisitz 1358: '<td'.$rowspan.' class="'.$tbg.'">'.
1359: '<input name="'.$buttonname.'" type="button" value="'.
1.225 bisitz 1360: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1.209 raeburn 1361: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1362: } else {
1.209 raeburn 1363: $roletext.=
1.212 bisitz 1364: '<td'.$rowspan.' class="'.$tbg.'">'.
1365: '<input name="'.$buttonname.'" type="button" value="'.
1.225 bisitz 1366: &mt('Re-Select').'" onclick="javascript:enterrole(this.form,\''.
1.209 raeburn 1367: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1368: }
1369: }
1.165 albertel 1370: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1371: $tremark.=&Apache::lonannounce::showday(time,1,
1372: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1373: }
1.212 bisitz 1374: $roletext.='<td>'.$trole.'</td>'
1375: .'<td>'.$twhere.'</td>'
1376: .'<td>'.$tpstart.'</td>'
1.223 raeburn 1377: .'<td>'.$tpend.'</td>';
1.132 albertel 1378: if (!$is_dc) {
1.223 raeburn 1379: $roletext_end = '<td colspan="4">'.
1380: $tremark.' '.
1381: '</td>';
1.132 albertel 1382: }
1.223 raeburn 1383: return ($roletext,$roletext_end);
1.110 raeburn 1384: }
1385:
1.202 raeburn 1386: sub check_needs_switchserver {
1387: my ($possiblerole) = @_;
1388: my $needs_switchserver;
1389: my ($role,$where) = split(/\./,$possiblerole,2);
1390: my (undef,$tdom,$twho) = split(/\//,$where);
1391: my ($server_status,$home);
1392: if (($role eq 'ca') || ($role eq 'aa')) {
1393: ($server_status,$home) = &check_author_homeserver($twho,$tdom);
1394: } else {
1395: ($server_status,$home) = &check_author_homeserver($env{'user.name'},
1396: $env{'user.domain'});
1397: }
1398: if ($server_status eq 'switchserver') {
1399: $needs_switchserver = 1;
1400: }
1401: return $needs_switchserver;
1402: }
1403:
1.193 raeburn 1404: sub check_author_homeserver {
1.183 www 1405: my ($uname,$udom)=@_;
1.193 raeburn 1406: if (($uname eq '') || ($udom eq '')) {
1407: return ('fail','');
1408: }
1.183 www 1409: my $home = &Apache::lonnet::homeserver($uname,$udom);
1.193 raeburn 1410: if (&Apache::lonnet::host_domain($home) ne $udom) {
1411: return ('fail',$home);
1412: }
1.183 www 1413: my @ids=&Apache::lonnet::current_machine_ids();
1.193 raeburn 1414: if (grep(/^\Q$home\E$/,@ids)) {
1415: return ('ok',$home);
1416: } else {
1417: return ('switchserver',$home);
1.183 www 1418: }
1419: }
1420:
1.104 raeburn 1421: sub check_fordc {
1422: my ($dcroles,$then) = @_;
1423: my $numdc = 0;
1.118 albertel 1424: if ($env{'user.adv'}) {
1425: foreach my $envkey (sort keys %env) {
1.170 albertel 1426: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1.104 raeburn 1427: my $dcdom = $1;
1428: my $livedc = 1;
1.118 albertel 1429: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 1430: if ($tstart && $tstart>$then) { $livedc = 0; }
1431: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 1432: if ($livedc) {
1433: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 1434: $numdc++;
1.104 raeburn 1435: }
1436: }
1437: }
1438: }
1439: return $numdc;
1440: }
1441:
1.185 raeburn 1442: sub adhoc_course_role {
1.231.4.3 raeburn 1443: my ($refresh,$then) = @_;
1.185 raeburn 1444: my ($cdom,$cnum);
1.201 raeburn 1445: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1446: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.231.4.3 raeburn 1447: if (&check_forcc($cdom,$cnum,$refresh,$then)) {
1.185 raeburn 1448: my $setprivs;
1.198 raeburn 1449: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1.185 raeburn 1450: $setprivs = 1;
1451: } else {
1.198 raeburn 1452: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1.231.4.3 raeburn 1453: if (($start && ($start>$refresh || $start == -1)) ||
1.185 raeburn 1454: ($end && $end<$then)) {
1455: $setprivs = 1;
1456: }
1.231.4.3 raeburn 1457: }
1.185 raeburn 1458: if ($setprivs) {
1.198 raeburn 1459: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1.185 raeburn 1460: my $role = $1;
1461: my $custom_role = $2;
1462: my $usec = $3;
1463: if ($role eq 'cr') {
1.199 raeburn 1464: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1.185 raeburn 1465: $role .= $custom_role;
1466: } else {
1467: return;
1468: }
1469: }
1.208 raeburn 1470: my (%userroles,%newrole,%newgroups,%group_privs);
1471: my %cgroups =
1472: &Apache::lonnet::get_active_groups($env{'user.domain'},
1473: $env{'user.name'},$cdom,$cnum);
1474: foreach my $group (keys(%cgroups)) {
1475: $group_privs{$group} =
1476: $env{'user.priv.cc./'.$cdom.'/'.$cnum.'./'.$cdom.'/'.$cnum.'/'.$group};
1477: }
1478: $newgroups{'/'.$cdom.'/'.$cnum} = \%group_privs;
1.185 raeburn 1479: my $area = '/'.$cdom.'/'.$cnum;
1480: my $spec = $role.'.'.$area;
1481: if ($usec ne '') {
1482: $spec .= '/'.$usec;
1483: $area .= '/'.$usec;
1484: }
1485: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1.208 raeburn 1486: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1.231.4.3 raeburn 1487: my $adhocstart = $refresh-1;
1.185 raeburn 1488: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1.186 raeburn 1489: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.185 raeburn 1490: }
1491: }
1492: }
1493: return;
1494: }
1495:
1496: sub check_forcc {
1.231.4.3 raeburn 1497: my ($cdom,$cnum,$refresh,$then) = @_;
1.185 raeburn 1498: my $is_cc;
1499: if ($cdom ne '' && $cnum ne '') {
1500: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1501: my $envkey = 'user.role.cc./'.$cdom.'/'.$cnum;
1502: if (defined($env{$envkey})) {
1503: $is_cc = 1;
1504: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.231.4.3 raeburn 1505: if ($tstart && $tstart>$refresh) { $is_cc = 0; }
1.185 raeburn 1506: if ($tend && $tend <$then) { $is_cc = 0; }
1507: }
1508: }
1509: }
1510: return $is_cc;
1511: }
1512:
1.108 raeburn 1513: sub courselink {
1.193 raeburn 1514: my ($dcdom,$rowtype) = @_;
1.109 raeburn 1515: my $courseform=&Apache::loncommon::selectcourse_link
1.152 raeburn 1516: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1517: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1.173 albertel 1518: $dcdom,$dcdom,undef);
1.138 raeburn 1519: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1520: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1521: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1522: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 1523: return $courseform.$hiddenitems;
1.109 raeburn 1524: }
1525:
1526: sub coursepick_jscript {
1.184 raeburn 1527: my %lt = &Apache::lonlocal::texthash(
1.231.4.5! raeburn 1528: 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.",
! 1529: youc => 'You can only use this screen to select courses and communities in the current domain.',
1.184 raeburn 1530: );
1.104 raeburn 1531: my $verify_script = <<"END";
1.179 raeburn 1532: <script type="text/javascript">
1.225 bisitz 1533: // <![CDATA[
1.108 raeburn 1534: function verifyCoursePick(caller) {
1535: var numbutton = getIndex(caller)
1.112 raeburn 1536: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1537: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1538: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 1539: if (pickedCourse != '') {
1.108 raeburn 1540: if (numbutton != -1) {
1541: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1542: document.rolechoice.elements[numbutton+1].name = courseTarget
1543: document.rolechoice.submit()
1544: }
1.104 raeburn 1545: }
1546: else {
1.184 raeburn 1547: alert("$lt{'plsu'}");
1.104 raeburn 1548: }
1549: }
1550: else {
1.184 raeburn 1551: alert("$lt{'youc'}")
1.104 raeburn 1552: }
1553: }
1.109 raeburn 1554: function getIndex(caller) {
1.108 raeburn 1555: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 1556: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 1557: return i;
1558: }
1559: }
1560: return -1;
1561: }
1.225 bisitz 1562: // ]]>
1.104 raeburn 1563: </script>
1564: END
1.109 raeburn 1565: return $verify_script;
1.104 raeburn 1566: }
1567:
1.193 raeburn 1568: sub coauthorlink {
1569: my ($dcdom,$rowtype) = @_;
1570: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1571: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1572: return $coauthorform.$hiddenitems;
1573: }
1574:
1.113 raeburn 1575: sub display_cc_role {
1576: my $rolekey = shift;
1.223 raeburn 1577: my ($roletext,$roletext_end);
1.118 albertel 1578: my $advanced = $env{'user.adv'};
1579: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 1580: unless ($rolekey =~/^error\:/) {
1.171 albertel 1581: if ($rolekey =~ m-^user\.role.cc\./($match_domain)/($match_courseid)$-) {
1.113 raeburn 1582: my $tcourseid = $1.'_'.$2;
1583: my $trolecode = 'cc./'.$1.'/'.$2;
1584: my $twhere;
1.152 raeburn 1585: my $ttype;
1.212 bisitz 1586: my $tbg='LC_roles_is';
1.113 raeburn 1587: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1588: if (%newhash) {
1589: $twhere=$newhash{'description'}.
1.211 tempelho 1590: ' <span style="LC_fontsize_small">'.
1.212 bisitz 1591: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1).
1.211 tempelho 1592: '</span>';
1.153 raeburn 1593: $ttype = $newhash{'type'};
1.113 raeburn 1594: } else {
1595: $twhere=&mt('Currently not available');
1.118 albertel 1596: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 1597: }
1.153 raeburn 1598: my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113 raeburn 1599: $twhere.="<br />".&mt('Domain').":".$1;
1.223 raeburn 1600: ($roletext,$roletext_end) = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$trole,$twhere,'','','',1,'');
1.104 raeburn 1601: }
1602: }
1.223 raeburn 1603: return ($roletext,$roletext_end);
1.104 raeburn 1604: }
1605:
1.192 raeburn 1606: sub adhoc_roles_row {
1.138 raeburn 1607: my ($dcdom,$rowtype) = @_;
1.212 bisitz 1608: my $output = &Apache::loncommon::continue_data_table_row()
1609: .' <td colspan="5">'
1610: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --'
1611: ,'<span class="LC_cusr_emph">','</span>',$dcdom)
1.227 bisitz 1612: .' ';
1.193 raeburn 1613: my $selectcclink = &courselink($dcdom,$rowtype);
1.173 albertel 1614: my $ccrole = &Apache::lonnet::plaintext('cc');
1.182 www 1615: my $carole = &Apache::lonnet::plaintext('ca');
1.193 raeburn 1616: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1.227 bisitz 1617: $output.=$ccrole.': '.$selectcclink
1618: .' | '.$carole.': '.$selectcalink
1.212 bisitz 1619: .&Apache::loncommon::end_data_table_row();
1.108 raeburn 1620: return $output;
1621: }
1622:
1.104 raeburn 1623: sub recent_filename {
1624: my $area=shift;
1.149 www 1625: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1626: }
1627:
1.139 raeburn 1628: sub courseloadpage {
1629: my ($courseid) = @_;
1630: my $startpage;
1.144 albertel 1631: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1632: [$courseid.':courseinit']);
1.139 raeburn 1633: my ($tmp) = %entry_settings;
1.144 albertel 1634: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1635: $startpage = $entry_settings{$courseid.':courseinit'};
1636: }
1637: if ($startpage eq '') {
1638: if (exists($env{'environment.course_init_display'})) {
1639: $startpage = $env{'environment.course_init_display'};
1640: }
1641: }
1642: return $startpage;
1643: }
1644:
1.1 harris41 1645: 1;
1646: __END__
1.32 harris41 1647:
1648: =head1 NAME
1649:
1650: Apache::lonroles - User Roles Screen
1651:
1652: =head1 SYNOPSIS
1653:
1654: Invoked by /etc/httpd/conf/srm.conf:
1655:
1656: <Location /adm/roles>
1657: PerlAccessHandler Apache::lonacc
1658: SetHandler perl-script
1659: PerlHandler Apache::lonroles
1660: ErrorDocument 403 /adm/login
1661: ErrorDocument 500 /adm/errorhandler
1662: </Location>
1.64 bowersj2 1663:
1664: =head1 OVERVIEW
1665:
1666: =head2 Choosing Roles
1667:
1668: C<lonroles> is a handler that allows a user to switch roles in
1669: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1670: default role that a user has before selecting a role, as widely as
1671: possible, but certain handlers for example need specification which
1672: course they should act on, etc. Both in this scenario, and when the
1673: handler determines via C<lonnet>'s C<&allowed> function that a certain
1674: action is not allowed, C<lonroles> is used as error handler. This
1675: allows the user to select another role which may have permission to do
1676: what they were trying to do. C<lonroles> can also be accessed via the
1677: B<CRS> button in the Remote Control.
1678:
1679: =begin latex
1680:
1681: \begin{figure}
1682: \begin{center}
1683: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1684: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1685: \end{center}
1686: \end{figure}
1687:
1688: =end latex
1689:
1690: =head2 Role Initialization
1691:
1692: 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 1693:
1694: =head1 INTRODUCTION
1695:
1696: This module enables a user to select what role he wishes to
1697: operate under (instructor, student, teaching assistant, course
1698: coordinator, etc). These roles are pre-established by the actions
1699: of upper-level users.
1700:
1701: This is part of the LearningOnline Network with CAPA project
1702: described at http://www.lon-capa.org.
1703:
1704: =head1 HANDLER SUBROUTINE
1705:
1706: This routine is called by Apache and mod_perl.
1707:
1708: =over 4
1709:
1710: =item *
1711:
1712: Roles Initialization (yes/no)
1713:
1714: =item *
1715:
1716: Get Error Message from Environment
1717:
1718: =item *
1719:
1720: Who is this?
1721:
1722: =item *
1723:
1724: Generate Page Output
1725:
1726: =item *
1727:
1728: Choice or no choice
1729:
1730: =item *
1731:
1732: Table
1733:
1734: =item *
1735:
1736: Privileges
1737:
1738: =back
1739:
1740: =cut
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