Annotation of loncom/auth/lonroles.pm, revision 1.203
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.203 ! raeburn 4: # $Id: lonroles.pm,v 1.202 2008/07/18 16:17:39 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:
1.1 harris41 30: package Apache::lonroles;
31:
32: use strict;
1.118 albertel 33: use Apache::lonnet;
1.7 www 34: use Apache::lonuserstate();
1.1 harris41 35: use Apache::Constants qw(:common);
1.2 www 36: use Apache::File();
1.26 www 37: use Apache::lonmenu;
1.29 albertel 38: use Apache::loncommon;
1.104 raeburn 39: use Apache::lonhtmlcommon;
1.57 www 40: use Apache::lonannounce;
1.72 www 41: use Apache::lonlocal;
1.151 www 42: use Apache::lonpageflip();
1.167 albertel 43: use Apache::lonnavdisplay();
1.120 albertel 44: use GDBM_File;
1.170 albertel 45: use LONCAPA qw(:DEFAULT :match);
1.201 raeburn 46: use HTML::Entities;
1.149 www 47:
1.1 harris41 48:
1.62 matthew 49: sub redirect_user {
1.95 albertel 50: my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62 matthew 51: $msg = $title if (! defined($msg));
1.73 www 52: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 53: &Apache::loncommon::no_cache($r);
54: $r->send_http_header;
55: my $swinfo=&Apache::lonmenu::rawconfig();
1.96 albertel 56: my $navwindow;
1.95 albertel 57: if ($launch_nav eq 'on') {
1.166 albertel 58: $navwindow.=&Apache::lonnavdisplay::launch_win('now',undef,undef,
59: ($url =~ m-^/adm/whatsnew-));
1.96 albertel 60: } else {
61: $navwindow.=&Apache::lonnavmaps::close();
1.95 albertel 62: }
1.147 albertel 63: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
64: {'redirect' => [1,$url],});
65: my $end_page = &Apache::loncommon::end_page();
66:
1.92 www 67: # Note to style police:
68: # This must only replace the spaces, nothing else, or it bombs elsewhere.
69: $url=~s/ /\%20/g;
1.93 albertel 70: $r->print(<<ENDREDIR);
1.147 albertel 71: $start_page
1.96 albertel 72: <script type="text/javascript">
1.62 matthew 73: $swinfo
74: </script>
1.96 albertel 75: $navwindow
1.62 matthew 76: <h1>$msg</h1>
1.147 albertel 77: $end_page
1.62 matthew 78: ENDREDIR
79: return;
80: }
81:
1.150 www 82: sub error_page {
83: my ($r,$error,$dest)=@_;
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
89: '<script type="text/javascript">'.
90: &Apache::lonmenu::rawconfig().'</script>'.
91: '<p>'.&mt('The following problems occurred:').
92: $error.
1.156 albertel 93: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
1.150 www 94: &Apache::loncommon::end_page());
95: }
96:
1.1 harris41 97: sub handler {
1.10 www 98:
1.1 harris41 99: my $r = shift;
100:
1.6 www 101: my $now=time;
1.118 albertel 102: my $then=$env{'user.login.time'};
1.6 www 103: my $envkey;
1.107 raeburn 104: my %dcroles = ();
105: my $numdc = &check_fordc(\%dcroles,$then);
1.148 albertel 106: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10 www 107:
1.6 www 108: # ================================================================== Roles Init
1.118 albertel 109: if ($env{'form.selectrole'}) {
1.188 www 110:
111: my $locknum=&Apache::lonnet::get_locks();
112: if ($locknum) { return 409; }
113:
1.134 www 114: if ($env{'form.newrole'}) {
115: $env{'form.'.$env{'form.newrole'}}=1;
116: }
1.118 albertel 117: if ($env{'request.course.id'}) {
1.185 raeburn 118: # Check if user is CC trying to select a course role
119: if ($env{'form.switchrole'}) {
120: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
121: &adhoc_course_role($then);
122: }
123: }
1.118 albertel 124: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 125: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 126: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 127: }
1.186 raeburn 128: &Apache::lonnet::appenv({"request.course.id" => '',
129: "request.course.fn" => '',
130: "request.course.uri" => '',
131: "request.course.sec" => '',
132: "request.role" => 'cm',
133: "request.role.adv" => $env{'user.adv'},
134: "request.role.domain" => $env{'user.domain'}});
1.182 www 135: # Check if user is a DC trying to enter a course or author space and needs privs to be created
1.107 raeburn 136: if ($numdc > 0) {
1.118 albertel 137: foreach my $envkey (keys %env) {
1.182 www 138: # Is this an ad-hoc CC-role?
1.146 raeburn 139: if (my ($domain,$coursenum) =
1.171 albertel 140: ($envkey =~ m-^form\.cc\./($match_domain)/($match_courseid)$-)) {
1.146 raeburn 141: if ($dcroles{$domain}) {
1.182 www 142: &check_privs($domain,$coursenum,$then,$now,'cc');
143: }
144: last;
145: }
1.193 raeburn 146: # Is this an ad-hoc CA-role?
1.183 www 147: if (my ($domain,$user) =
148: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
1.193 raeburn 149: # Check if author blocked ca-access
1.190 www 150: my %blocked=&Apache::lonnet::get('environment',['domcoord.author'],$domain,$user);
151: if ($blocked{'domcoord.author'} eq 'blocked') {
152: delete($env{$envkey});
153: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
154: last;
155: }
1.193 raeburn 156: if ($dcroles{$domain}) {
157: my ($server_status,$home) = &check_author_homeserver($user,$domain);
158: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
159: &check_privs($domain,$user,$then,$now,'ca');
160: if ($server_status eq 'switchserver') {
161: my $trolecode = 'ca./'.$domain.'/'.$user;
162: my $switchserver = '/adm/switchserver?'
163: .'otherserver='.$home.'&role='.$trolecode;
164: $r->internal_redirect($switchserver);
165: }
166: } else {
167: delete($env{$envkey});
168: }
1.183 www 169: } else {
170: delete($env{$envkey});
1.182 www 171: }
172: last;
173: }
1.107 raeburn 174: }
175: }
176:
1.118 albertel 177: foreach $envkey (keys %env) {
1.40 matthew 178: next if ($envkey!~/^user\.role\./);
1.102 raeburn 179: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
180: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 181: if ($env{'form.'.$trolecode}) {
1.55 albertel 182: if ($tstatus eq 'is') {
183: $where=~s/^\///;
184: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 185: # check for course groups
186: my %coursegroups = &Apache::lonnet::get_active_groups(
187: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
188: my $cgrps = join(':',keys(%coursegroups));
189:
1.111 albertel 190: # store role if recent_role list being kept
1.118 albertel 191: if ($env{'environment.recentroles'}) {
1.158 albertel 192: my %frozen_roles =
193: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111 albertel 194: &Apache::lonhtmlcommon::store_recent('roles',
1.158 albertel 195: $trolecode,' ',$frozen_roles{$trolecode});
1.111 albertel 196: }
197:
198:
1.53 www 199: # check for keyed access
1.55 albertel 200: if (($role eq 'st') &&
1.118 albertel 201: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 202: # who is key authority?
203: my $authdom=$cdom;
204: my $authnum=$cnum;
1.118 albertel 205: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 206: ($authnum,$authdom)=
1.172 albertel 207: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 208: }
209: # check with key authority
210: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 211: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 212: $authdom,$authnum)) {
1.53 www 213: # there is no valid key
1.118 albertel 214: if ($env{'form.newkey'}) {
1.53 www 215: # student attempts to register a new key
1.89 www 216: &Apache::loncommon::content_type($r,'text/html');
217: &Apache::loncommon::no_cache($r);
218: $r->send_http_header;
219: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 220: my $start_page=&Apache::loncommon::start_page
1.89 www 221: ('Verifying Access Key to Unlock this Course');
1.147 albertel 222: my $end_page=&Apache::loncommon::end_page();
1.90 www 223: my $buttontext=&mt('Enter Course');
224: my $message=&mt('Successfully registered key');
225: my $assignresult=
226: &Apache::lonnet::assign_access_key(
1.118 albertel 227: $env{'form.newkey'},
1.90 www 228: $authdom,$authnum,
1.91 www 229: $cdom,$cnum,
1.118 albertel 230: $env{'user.domain'},
231: $env{'user.name'},
1.90 www 232: 'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
233: $trolecode);
234: unless ($assignresult eq 'ok') {
235: $assignresult=~s/^error\:\s*//;
236: $message=&mt($assignresult).
237: '<br /><a href="/adm/logout">'.
1.89 www 238: &mt('Logout').'</a>';
1.90 www 239: $buttontext=&mt('Re-Enter Key');
240: }
1.89 www 241: $r->print(<<ENDENTEREDKEY);
1.147 albertel 242: $start_page
1.179 raeburn 243: <script type="text/javascript">
1.89 www 244: $swinfo
245: </script>
246: <form method="post">
247: <input type="hidden" name="selectrole" value="1" />
248: <input type="hidden" name="$trolecode" value="1" />
1.90 www 249: <font size="+2">$message</font><br />
1.89 www 250: <input type="submit" value="$buttontext" />
251: </form>
1.147 albertel 252: $end_page
1.89 www 253: ENDENTEREDKEY
254: return OK;
1.55 albertel 255: } else {
1.53 www 256: # print form to enter a new key
1.73 www 257: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 258: &Apache::loncommon::no_cache($r);
259: $r->send_http_header;
260: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 261: my $start_page=&Apache::loncommon::start_page
1.55 albertel 262: ('Enter Access Key to Unlock this Course');
1.147 albertel 263: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 264: $r->print(<<ENDENTERKEY);
1.147 albertel 265: $start_page
1.179 raeburn 266: <script type="text/javascript">
1.53 www 267: $swinfo
268: </script>
269: <form method="post">
1.89 www 270: <input type="hidden" name="selectrole" value="1" />
271: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 272: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 273: <input type="submit" value="Enter key" />
274: </form>
1.147 albertel 275: $end_page
1.53 www 276: ENDENTERKEY
1.55 albertel 277: return OK;
278: }
279: }
280: }
1.118 albertel 281: &Apache::lonnet::log($env{'user.domain'},
282: $env{'user.name'},
283: $env{'user.home'},
1.87 www 284: "Role ".$trolecode);
1.101 albertel 285:
1.56 www 286: &Apache::lonnet::appenv(
1.186 raeburn 287: {'request.role' => $trolecode,
288: 'request.role.domain' => $cdom,
289: 'request.course.sec' => $csec,
290: 'request.course.groups' => $cgrps});
1.101 albertel 291: my $tadv=0;
1.62 matthew 292:
1.125 www 293: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152 raeburn 294: my $msg;
1.55 albertel 295: my ($furl,$ferr)=
296: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 297: if (($env{'form.orgurl'}) &&
298: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
299: my $dest=$env{'form.orgurl'};
1.117 albertel 300: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 301: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.150 www 302: if (($ferr) && ($tadv)) {
303: &error_page($r,$ferr,$dest);
304: } else {
305: $r->internal_redirect($dest);
306: }
1.55 albertel 307: return OK;
308: } else {
1.155 albertel 309: if (!$env{'request.course.id'}) {
1.55 albertel 310: &Apache::lonnet::appenv(
1.186 raeburn 311: {"request.course.id" => $cdom.'_'.$cnum});
1.61 www 312: $furl='/adm/roles?tryagain=1';
1.55 albertel 313: $msg=
1.157 albertel 314: '<h1><span class="LC_error">'.
1.162 albertel 315: &mt('Could not initialize [_1] at this time.',
316: $env{'course.'.$cdom.'_'.$cnum.'.description'}).
1.157 albertel 317: '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 318: }
1.117 albertel 319: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 320: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.152 raeburn 321:
1.150 www 322: if (($ferr) && ($tadv)) {
323: &error_page($r,$ferr,$furl);
324: } else {
325: # Check to see if the user is a CC entering a course
326: # for the first time
327: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
328: if (substr($courseid, 0, 1) eq '/') {
329: $courseid = substr($courseid, 1);
330: }
331: $courseid =~ s/\//_/;
332: if ($role eq 'cc' && $env{'course.' . $courseid .
333: '.course.helper.not.run'}) {
334: $furl = "/adm/helper/course.initialization.helper";
335: # Send the user to the course they selected
336: } elsif ($env{'request.course.id'}) {
1.185 raeburn 337: if ($env{'form.destinationurl'}) {
338: my $dest = $env{'form.destinationurl'};
1.203 ! raeburn 339: if ($env{'form.destsymb'} ne '') {
! 340: my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
! 341: $dest .= '?symb='.$esc_symb;
! 342: }
1.185 raeburn 343: &redirect_user($r,&mt('Entering [_1]',
344: $env{'course.'.$courseid.'.description'}),
345: $dest,$msg,
346: $env{'environment.remotenavmap'});
347: return OK;
348: }
1.150 www 349: if (&Apache::lonnet::allowed('whn',
350: $env{'request.course.id'})
351: || &Apache::lonnet::allowed('whn',
352: $env{'request.course.id'}.'/'
353: .$env{'request.course.sec'})
354: ) {
355: my $startpage = &courseloadpage($courseid);
356: unless ($startpage eq 'firstres') {
1.162 albertel 357: $msg = &mt('Entering [_1] ....',
358: $env{'course.'.$courseid.'.description'});
1.150 www 359: &redirect_user($r,&mt('New in course'),
360: '/adm/whatsnew?refpage=start',$msg,
361: $env{'environment.remotenavmap'});
362: return OK;
363: }
364: }
365: }
1.151 www 366: # Are we allowed to look at the first resource?
1.169 albertel 367: if ($furl !~ m|^/adm/|) {
1.151 www 368: # Guess not ...
369: $furl=&Apache::lonpageflip::first_accessible_resource();
370: }
1.162 albertel 371: $msg = &mt('Entering [_1] ...',
372: $env{'course.'.$courseid.'.description'});
373: &redirect_user($r,&mt('Entering [_1]',
374: $env{'course.'.$courseid.'.description'}),
1.150 www 375: $furl,$msg,
376: $env{'environment.remotenavmap'});
1.58 bowersj2 377: }
1.124 albertel 378: return OK;
1.55 albertel 379: }
380: }
1.62 matthew 381: #
382: # Send the user to the construction space they selected
1.125 www 383: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 384: my $redirect_url = '/priv/';
385: if ($role eq 'au') {
1.118 albertel 386: $redirect_url.=$env{'user.name'};
1.62 matthew 387: } else {
388: $where =~ /\/(.*)$/;
389: $redirect_url .= $1;
390: }
391: $redirect_url .= '/';
1.78 sakharuk 392: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 393: $redirect_url);
394: return OK;
395: }
1.104 raeburn 396: if ($role eq 'dc') {
1.108 raeburn 397: my $redirect_url = '/adm/menu/';
398: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 399: $redirect_url);
1.108 raeburn 400: return OK;
1.104 raeburn 401: }
1.55 albertel 402: }
403: }
1.6 www 404: }
1.40 matthew 405: }
1.44 www 406:
1.10 www 407:
1.6 www 408: # =============================================================== No Roles Init
1.10 www 409:
1.73 www 410: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 411: &Apache::loncommon::no_cache($r);
1.10 www 412: $r->send_http_header;
413: return OK if $r->header_only;
414:
1.52 www 415: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 416: my $start_page=&Apache::loncommon::start_page('User Roles');
1.134 www 417: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 418: $standby=~s/\n/\\n/g;
1.184 raeburn 419: 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 420:
1.10 www 421: $r->print(<<ENDHEADER);
1.147 albertel 422: $start_page
1.163 www 423: <br />
1.179 raeburn 424: <noscript>
425: $noscript
426: </noscript>
427: <script type="text/javascript">
1.26 www 428: $swinfo
429: window.focus();
1.134 www 430:
431: active=true;
432:
433: function enterrole (thisform,rolecode,buttonname) {
434: if (active) {
435: active=false;
436: document.title='$standby';
437: window.status='$standby';
438: thisform.newrole.value=rolecode;
439: thisform.submit();
440: } else {
441: alert('$standby');
442: }
443: }
1.26 www 444: </script>
1.10 www 445: ENDHEADER
1.6 www 446:
1.2 www 447: # ------------------------------------------ Get Error Message from Environment
448:
1.118 albertel 449: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
450: if ($env{'user.error.msg'}) {
1.55 albertel 451: $r->log_reason(
1.118 albertel 452: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 453: }
1.1 harris41 454:
1.61 www 455: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 456:
1.118 albertel 457: my $advanced=$env{'user.adv'};
1.61 www 458: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 459: my $tryagain=$env{'form.tryagain'};
1.6 www 460:
1.2 www 461: # -------------------------------------------------------- Generate Page Output
1.6 www 462: # --------------------------------------------------------------- Error Header?
1.2 www 463: if ($error) {
1.187 bisitz 464: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
1.174 albertel 465: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
466: if ($priv ne '') {
1.187 bisitz 467: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
1.174 albertel 468: }
469: if ($fn ne '') {
1.187 bisitz 470: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
1.174 albertel 471: }
472: if ($msg ne '') {
1.187 bisitz 473: $r->print(&mt('Action : ').$msg."\n");
1.174 albertel 474: }
475: $r->print("</pre><hr />");
1.120 albertel 476: my $url=$fn;
477: my $last;
478: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
479: &GDBM_READER(),0640)) {
480: $last=$hash{'last_known'};
481: untie(%hash);
482: }
1.149 www 483: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 484:
485: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
486: &Apache::lonenc::check_encrypt($fn));
1.2 www 487: } else {
1.118 albertel 488: if ($env{'user.error.msg'}) {
1.25 www 489: $r->print(
1.157 albertel 490: '<h3><span class="LC_error">'.
491: &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
1.25 www 492: }
1.2 www 493: }
1.6 www 494: # -------------------------------------------------------- Choice or no choice?
1.2 www 495: if ($nochoose) {
1.177 www 496: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
497: &mt('This action is currently not authorized.').'</span>'.
1.150 www 498: &Apache::loncommon::end_page());
499: return OK;
1.6 www 500: } else {
1.18 www 501: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
502: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 503: }
1.84 www 504: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 505: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
506: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 507: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 508: }
1.75 albertel 509: my (%roletext,%sortrole,%roleclass);
1.84 www 510: my $countactive=0;
1.191 raeburn 511: my $countfuture=0;
512: my $countwill=0;
1.84 www 513: my $inrole=0;
514: my $possiblerole='';
1.191 raeburn 515: my %futureroles;
516: my %roles_nextlogin;
1.118 albertel 517: foreach $envkey (sort keys %env) {
1.35 matthew 518: my $button = 1;
1.49 www 519: my $switchserver='';
1.75 albertel 520: my $roletext;
521: my $sortkey;
1.2 www 522: if ($envkey=~/^user\.role\./) {
1.102 raeburn 523: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
524: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 525: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102 raeburn 526: $tremark='';
527: $tpstart=' ';
528: $tpend=' ';
529: $tfont='#000000';
1.4 www 530: if ($tstart) {
1.74 www 531: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 532: }
533: if ($tend) {
1.74 www 534: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 535: }
1.118 albertel 536: if ($env{'request.role'} eq $trolecode) {
1.6 www 537: $tstatus='selected';
538: }
1.4 www 539: my $tbg;
1.164 albertel 540: if (($tstatus eq 'is')
541: || ($tstatus eq 'selected')
542: || ($tstatus eq 'will')
543: || ($tstatus eq 'future')
544: || ($env{'form.showall'})) {
1.35 matthew 545: if ($tstatus eq 'is') {
546: $tbg='#77FF77';
1.47 www 547: $tfont='#003300';
1.84 www 548: $possiblerole=$trolecode;
549: $countactive++;
1.35 matthew 550: } elsif ($tstatus eq 'future') {
551: $tbg='#FFFF77';
1.49 www 552: $button=0;
1.191 raeburn 553: $futureroles{$trolecode} = $tstart.':'.$tend;
554: $countfuture ++;
1.35 matthew 555: } elsif ($tstatus eq 'will') {
556: $tbg='#FFAA77';
1.72 www 557: $tremark.=&mt('Active at next login. ');
1.191 raeburn 558: $roles_nextlogin{$trolecode} = $tstart.':'.$tend;
559: $countwill ++;
1.35 matthew 560: } elsif ($tstatus eq 'expired') {
561: $tbg='#FF7777';
1.47 www 562: $tfont='#330000';
1.49 www 563: $button=0;
1.35 matthew 564: } elsif ($tstatus eq 'will_not') {
565: $tbg='#AAFF77';
1.72 www 566: $tremark.=&mt('Expired after logout. ');
1.35 matthew 567: } elsif ($tstatus eq 'selected') {
568: $tbg='#11CC55';
1.47 www 569: $tfont='#002200';
1.84 www 570: $inrole=1;
1.86 albertel 571: $countactive++;
1.72 www 572: $tremark.=&mt('Currently selected. ');
1.35 matthew 573: }
574: my $trole;
575: if ($role =~ /^cr\//) {
576: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 577: if ($tremark) { $tremark.='<br />'; }
578: $tremark.=&mt('Defined by ').$rauthor.
1.72 www 579: &mt(' at ').$rdomain.'.';
1.159 albertel 580: }
581: $trole=Apache::lonnet::plaintext($role);
1.35 matthew 582: my $ttype;
583: my $twhere;
584: my ($tdom,$trest,$tsection)=
585: split(/\//,Apache::lonnet::declutter($where));
586: # First, Co-Authorship roles
1.125 www 587: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 588: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 589: my $allowed=0;
590: my @ids=&Apache::lonnet::current_machine_ids();
591: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
592: if (!$allowed) {
1.49 www 593: $button=0;
1.130 albertel 594: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 595: }
1.35 matthew 596: #next if ($home eq 'no_host');
1.176 albertel 597: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 598: $ttype='Construction Space';
1.72 www 599: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
600: ': '.$tdom.'<br />'.
601: ' '.&mt('Server').': '.$home;
1.118 albertel 602: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 603: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 604: $sortkey=$role."$trest:$tdom";
1.35 matthew 605: } elsif ($role eq 'au') {
606: # Authors
607: my $home = &Apache::lonnet::homeserver
1.118 albertel 608: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 609: my $allowed=0;
610: my @ids=&Apache::lonnet::current_machine_ids();
611: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
612: if (!$allowed) {
1.49 www 613: $button=0;
1.143 albertel 614: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 615: }
1.35 matthew 616: #next if ($home eq 'no_host');
1.176 albertel 617: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 618: $ttype='Construction Space';
1.72 www 619: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
620: ': '.$home;
1.118 albertel 621: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
622: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 623: $sortkey=$role;
1.35 matthew 624: } elsif ($trest) {
625: my $tcourseid=$tdom.'_'.$trest;
1.153 raeburn 626: $ttype = &Apache::loncommon::course_type($tcourseid);
627: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.118 albertel 628: if ($env{'course.'.$tcourseid.'.description'}) {
629: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 630: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 631: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 632: $twhere.=' <font size="-2">'.
1.72 www 633: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 634: '</font>';
1.55 albertel 635: }
1.8 www 636: } else {
1.105 raeburn 637: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 638: if (%newhash) {
1.80 albertel 639: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 640: "\0".$envkey;
1.49 www 641: $twhere=$newhash{'description'}.
642: ' <font size="-2">'.
1.72 www 643: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 644: '</font>';
1.152 raeburn 645: $ttype = $newhash{'type'};
1.153 raeburn 646: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.35 matthew 647: } else {
1.72 www 648: $twhere=&mt('Currently not available');
1.118 albertel 649: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 650: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.152 raeburn 651: $ttype = 'Unavailable';
1.35 matthew 652: }
1.8 www 653: }
1.121 albertel 654: if ($tsection) {
1.175 albertel 655: $twhere.='<br />'.&mt('Section').': '.$tsection;
1.121 albertel 656: }
1.72 www 657: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 658: } elsif ($tdom) {
1.78 sakharuk 659: $ttype='Domain';
1.35 matthew 660: $twhere=$tdom;
1.75 albertel 661: $sortkey=$role.$twhere;
1.35 matthew 662: } else {
1.78 sakharuk 663: $ttype='System';
1.72 www 664: $twhere=&mt('system wide');
1.75 albertel 665: $sortkey=$role.$twhere;
1.13 www 666: }
1.152 raeburn 667: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 668: $roletext{$envkey}=$roletext;
669: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
670: $sortrole{$sortkey}=$envkey;
671: $roleclass{$envkey}=$ttype;
1.55 albertel 672: }
1.4 www 673: }
1.75 albertel 674: }
1.196 raeburn 675: if ($env{'user.adv'}) {
676: $r->print(
677: '<br /><span class="LC_rolesinfo"><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
678: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
679: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" /></span>');
680: } else {
681: if ($countactive > 0) {
682: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 683: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
684: $r->print('<p>'.&mt('[_1]Visit the [_2]Course Catalog[_3] to view all [_4] LON-CAPA courses.','<b>','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a></b>',$domdesc).'<br />'.&mt('If a course is [_1]not[_2] in your list of current courses below, you may be able to enroll if self-enrollment is permitted.','<b>','</b>').'</p>');
1.196 raeburn 685: }
686: }
687:
1.84 www 688: # No active roles
689: if ($countactive==0) {
690: if ($inrole) {
691: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
692: } else {
693: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
694: }
1.191 raeburn 695: &findcourse_advice($r);
696: $r->print('</form>');
697: if ($countfuture) {
698: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
699: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
700: $nochoose);
701: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
702: \%roletext);
703: my $tremark='';
704: my $tfont='#003300';
705: if ($env{'request.role'} eq 'cm') {
706: $r->print('<tr bgcolor="#11CC55">');
707: $tremark=&mt('Currently selected. ');
708: $tfont='#002200';
709: } else {
710: $r->print('<tr bgcolor="#77FF77">');
711: }
712: $r->print('<td></td><td colspan="3"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.&mt('No role specified').
1.192 raeburn 713: '</span></font></td><td><font color="'.$tfont.'">'.$tremark.
1.191 raeburn 714: ' </font></td></tr>'."\n");
715:
716: $r->print('</table>');
717: }
718: $r->print(&Apache::loncommon::end_page());
1.84 www 719: return OK;
720: # Is there only one choice?
1.202 raeburn 721: } elsif ($countactive==1) {
722: my $needs_switchserver;
723: if ($env{'user.author'}) {
724: $needs_switchserver = &check_needs_switchserver($possiblerole);
725: }
726: if ((!$needs_switchserver) && ($env{'request.role'} eq 'cm')) {
727: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
728: '<input type="hidden" name="'.$possiblerole.'" value="1" />'.
1.179 raeburn 729: '<noscript><br /><input type="submit" name="submit" value="'.&mt('Continue').'" /></noscript>');
1.202 raeburn 730: $r->print("</form>\n");
731: $r->rflush();
732: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
733: $r->print(&Apache::loncommon::end_page());
734: return OK;
735: }
736: if ($needs_switchserver) {
737: $r->print("<h2>".&mt('Server Switch Required')."</h2>\n".
738: &mt('Construction Space access is only available from '.
739: 'the home server of the corresponding Author.').'<br />'.
740: &mt("Click the 'Switch Server' link to go there.").'<br />');
741: }
1.84 www 742: }
743: # More than one possible role
744: # ----------------------------------------------------------------------- Table
1.202 raeburn 745: unless ((!&Apache::lonmenu::show_course()) || ($nochoose) || ($countactive==1)) {
1.173 albertel 746: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.84 www 747: }
1.191 raeburn 748: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1.118 albertel 749: if ($env{'environment.recentroles'}) {
1.111 albertel 750: my %recent_roles =
1.118 albertel 751: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 752: my $output='';
753: foreach (sort(keys(%recent_roles))) {
754: if (defined($roletext{'user.role.'.$_})) {
755: $output.=$roletext{'user.role.'.$_};
1.170 albertel 756: if ($_ =~ m-dc\./($match_domain)/-
757: && $dcroles{$1}) {
1.192 raeburn 758: $output .= &adhoc_roles_row($1,'recent');
1.133 albertel 759: }
1.113 raeburn 760: } elsif ($numdc > 0) {
761: unless ($_ =~/^error\:/) {
762: $output.=&display_cc_role('user.role.'.$_);
763: }
764: }
1.111 albertel 765: }
766: if ($output) {
1.132 albertel 767: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.192 raeburn 768: &mt('Recent Roles')."</font></td></tr>");
1.111 albertel 769: $r->print($output);
1.114 raeburn 770: $doheaders ++;
1.111 albertel 771: }
772: }
773:
1.104 raeburn 774: if ($numdc > 0) {
1.112 raeburn 775: $r->print(&coursepick_jscript());
1.193 raeburn 776: $r->print(&Apache::loncommon::coursebrowser_javascript().
777: &Apache::loncommon::authorbrowser_javascript());
1.108 raeburn 778: }
1.191 raeburn 779: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1.202 raeburn 780: if ($countactive > 1) {
781: my $tremark='';
782: my $tfont='#003300';
783: if ($env{'request.role'} eq 'cm') {
784: $r->print('<tr bgcolor="#11CC55">');
785: $tremark=&mt('Currently selected. ');
786: $tfont='#002200';
787: } else {
788: $r->print('<tr bgcolor="#77FF77">');
789: }
790: unless ($nochoose) {
791: if ($env{'request.role'} ne 'cm') {
792: $r->print('<td><input type="submit" value="'.
793: &mt('Select').'" name="cm" /></td>');
794: } else {
795: $r->print('<td> </td>');
796: }
797: }
798: $r->print('<td colspan="3"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.&mt('No role specified').
799: '</span></font></td><td><font color="'.$tfont.'">'.$tremark.
800: ' </font></td></tr>'."\n");
801: }
1.4 www 802: $r->print('</table>');
803: unless ($nochoose) {
804: $r->print("</form>\n");
805: }
1.22 harris41 806: # ------------------------------------------------------------ Privileges Info
1.118 albertel 807: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 808: $r->print('<hr /><h2>Current Privileges</h2>');
1.175 albertel 809: $r->print(&privileges_info());
1.4 www 810: }
1.66 www 811: $r->print(&Apache::lonnet::getannounce());
1.65 www 812: if ($advanced) {
1.201 raeburn 813: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.195 bisitz 814: $r->print('<p><small><i>'
815: .&mt('This is LON-CAPA [_1]',$r->dir_config('lonVersion'))
816: .'</i><br />'
1.197 raeburn 817: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1.201 raeburn 818: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
819: .&mt('Course Catalog')
1.197 raeburn 820: .'</small></p>');
1.65 www 821: }
1.147 albertel 822: $r->print(&Apache::loncommon::end_page());
1.1 harris41 823: return OK;
1.102 raeburn 824: }
825:
1.191 raeburn 826: sub roletable_headers {
827: my ($r,$roleclass,$sortrole,$nochoose) = @_;
828: my $doheaders;
829: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
830: $r->print('<br /><table id="LC_rolesmenu"><tr>');
831: if (!$nochoose) { $r->print('<th> </th>'); }
832: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent')
833: .'</th><th>'.&mt('Start').'</th><th>'.&mt('End')
834: .'</th></tr>'."\n");
835: $doheaders=-1;
836: my @roletypes = &roletypes();
837: foreach my $type (@roletypes) {
838: my $haverole=0;
839: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
840: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
841: $haverole=1;
842: }
843: }
844: if ($haverole) { $doheaders++; }
845: }
846: }
847: return $doheaders;
848: }
849:
850: sub roletypes {
851: my @types = ('Domain','Construction Space','Course','Unavailable','System');
852: return @types;
853: }
854:
855: sub print_rolerows {
856: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
857: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
858: my @types = &roletypes();
859: foreach my $type (@types) {
860: my $output;
861: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
862: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
863: if (ref($roletext) eq 'HASH') {
864: $output.=$roletext->{$sortrole->{$which}};
865: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
866: if (ref($dcroles) eq 'HASH') {
867: if ($dcroles->{$1}) {
1.192 raeburn 868: $output .= &adhoc_roles_row($1,'');
1.191 raeburn 869: }
870: }
871: }
872: }
873: }
874: }
875: if ($output) {
876: if ($doheaders > 0) {
877: $r->print("<tr>".
878: "<td align='center' colspan='5'><font face='arial'>".
879: &mt($type)."</font></td></tr>");
880: }
881: $r->print($output);
882: }
883: }
884: }
885: }
886:
887: sub findcourse_advice {
888: my ($r) = @_;
889: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 890: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.200 raeburn 891: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1.191 raeburn 892: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
893: <ul>
894: <li>'.&mt('The course has yet to be created.').'</li>
895: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
896: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
897: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
898: <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>
899: </ul>');
900: } else {
901: $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 />');
902: }
1.201 raeburn 903: $r->print('<p>'.&mt('The [_1]Course Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1.191 raeburn 904: $r->print(&mt('You can search the course catalog for courses which permit self-enrollment, if you would like to enroll in a course.').'</p>');
905: return;
906: }
907:
1.175 albertel 908: sub privileges_info {
909: my ($which) = @_;
910: my $output;
911:
912: $which ||= $env{'request.role'};
913:
914: foreach my $envkey (sort(keys(%env))) {
915: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
916:
917: my $where=$1;
918: my $ttype;
919: my $twhere;
920: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
921: if ($trest) {
922: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
923: $ttype='Construction Space';
924: $twhere='User: '.$trest.', Domain: '.$tdom;
925: } else {
926: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
927: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
928: if ($tsec) {
929: my $sec_type = 'Section';
930: if (exists($env{"user.role.gr.$where"})) {
931: $sec_type = 'Group';
932: }
933: $twhere.=' ('.$sec_type.': '.$tsec.')';
934: }
935: }
936: } elsif ($tdom) {
937: $ttype='Domain';
938: $twhere=$tdom;
939: } else {
940: $ttype='System';
941: $twhere='/';
942: }
943: $output .= "\n<h3>".$ttype.': '.$twhere.'</h3>'."\n<ul>";
944: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
945: next if (!$priv);
946:
947: my ($prv,$restr)=split(/\&/,$priv);
948: my $trestr='';
949: if ($restr ne 'F') {
950: $trestr.=' ('.
951: join(', ',
952: map { &Apache::lonnet::plaintext($_) }
953: (split('',$restr))).') ';
954: }
955: $output .= "\n\t".
956: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
957: }
958: $output .= "\n".'</ul>';
959: }
960: return $output;
961: }
962:
1.102 raeburn 963: sub role_status {
964: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
965: my @pwhere = ();
1.118 albertel 966: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 967: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
968: unless (!defined($$role) || $$role eq '') {
969: $$where=join('.',@pwhere);
970: $$trolecode=$$role.'.'.$$where;
1.118 albertel 971: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 972: $$tstatus='is';
1.105 raeburn 973: if ($$tstart && $$tstart>$then) {
974: $$tstatus='future';
975: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 976: }
977: if ($$tend) {
978: if ($$tend<$then) {
979: $$tstatus='expired';
1.103 raeburn 980: } elsif ($$tend<$now) {
1.104 raeburn 981: $$tstatus='will_not';
1.102 raeburn 982: }
983: }
984: }
985: }
986: }
1.1 harris41 987:
1.110 raeburn 988: sub build_roletext {
1.152 raeburn 989: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
1.177 www 990: my $roletext='<tr bgcolor="'.$tbg.'" class="LC_rolesmenu_'.$tstatus.'">';
1.132 albertel 991: my $is_dc=($trolecode =~ m/^dc\./);
992: my $rowspan=($is_dc) ? ''
993: : ' rowspan="2" ';
994:
1.110 raeburn 995: unless ($nochoose) {
1.134 www 996: my $buttonname=$trolecode;
997: $buttonname=~s/\W//g;
1.110 raeburn 998: if (!$button) {
999: if ($switchserver) {
1.177 www 1000: $roletext.='<td'.$rowspan.'><span class="LC_rolesinfo"><a href="/adm/switchserver?'.
1001: $switchserver.'">'.&mt('Switch Server').'</a></span></td>';
1.110 raeburn 1002: } else {
1.164 albertel 1003: $roletext.=('<td'.$rowspan.'> </td>');
1.110 raeburn 1004: }
1005: } elsif ($tstatus eq 'is') {
1.134 www 1006: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1007: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1008: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1009: } elsif ($tryagain) {
1010: $roletext.=
1.134 www 1011: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1012: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1013: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1014: } elsif ($advanced) {
1015: $roletext.=
1.134 www 1016: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1017: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1018: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1019: } else {
1.132 albertel 1020: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 1021: }
1022: }
1.165 albertel 1023: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1024: $tremark.=&Apache::lonannounce::showday(time,1,
1025: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1026: }
1.110 raeburn 1027: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 1028: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 1029: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
1030: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 1031: '</font></td></tr>';
1032: if (!$is_dc) {
1.177 www 1033: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.$tremark.
1034: '</span> </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
1.132 albertel 1035: }
1.110 raeburn 1036: return $roletext;
1037: }
1038:
1.202 raeburn 1039: sub check_needs_switchserver {
1040: my ($possiblerole) = @_;
1041: my $needs_switchserver;
1042: my ($role,$where) = split(/\./,$possiblerole,2);
1043: my (undef,$tdom,$twho) = split(/\//,$where);
1044: my ($server_status,$home);
1045: if (($role eq 'ca') || ($role eq 'aa')) {
1046: ($server_status,$home) = &check_author_homeserver($twho,$tdom);
1047: } else {
1048: ($server_status,$home) = &check_author_homeserver($env{'user.name'},
1049: $env{'user.domain'});
1050: }
1051: if ($server_status eq 'switchserver') {
1052: $needs_switchserver = 1;
1053: }
1054: return $needs_switchserver;
1055: }
1056:
1.193 raeburn 1057: sub check_author_homeserver {
1.183 www 1058: my ($uname,$udom)=@_;
1.193 raeburn 1059: if (($uname eq '') || ($udom eq '')) {
1060: return ('fail','');
1061: }
1.183 www 1062: my $home = &Apache::lonnet::homeserver($uname,$udom);
1.193 raeburn 1063: if (&Apache::lonnet::host_domain($home) ne $udom) {
1064: return ('fail',$home);
1065: }
1.183 www 1066: my @ids=&Apache::lonnet::current_machine_ids();
1.193 raeburn 1067: if (grep(/^\Q$home\E$/,@ids)) {
1068: return ('ok',$home);
1069: } else {
1070: return ('switchserver',$home);
1.183 www 1071: }
1072: }
1073:
1.110 raeburn 1074: sub check_privs {
1.182 www 1075: my ($cdom,$cnum,$then,$now,$checkrole) = @_;
1076: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.118 albertel 1077: if ($env{$cckey}) {
1.110 raeburn 1078: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
1079: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1080: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.182 www 1081: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 1082: }
1083: } else {
1.182 www 1084: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 1085: }
1086: }
1087:
1.104 raeburn 1088: sub check_fordc {
1089: my ($dcroles,$then) = @_;
1090: my $numdc = 0;
1.118 albertel 1091: if ($env{'user.adv'}) {
1092: foreach my $envkey (sort keys %env) {
1.170 albertel 1093: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1.104 raeburn 1094: my $dcdom = $1;
1095: my $livedc = 1;
1.118 albertel 1096: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 1097: if ($tstart && $tstart>$then) { $livedc = 0; }
1098: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 1099: if ($livedc) {
1100: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 1101: $numdc++;
1.104 raeburn 1102: }
1103: }
1104: }
1105: }
1106: return $numdc;
1107: }
1108:
1.185 raeburn 1109: sub adhoc_course_role {
1110: my ($then) = @_;
1111: my ($cdom,$cnum);
1.201 raeburn 1112: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1113: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.185 raeburn 1114: if (&check_forcc($cdom,$cnum,$then)) {
1115: my $setprivs;
1.198 raeburn 1116: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1.185 raeburn 1117: $setprivs = 1;
1118: } else {
1.198 raeburn 1119: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1.185 raeburn 1120: if (($start && ($start>$then || $start == -1)) ||
1121: ($end && $end<$then)) {
1122: $setprivs = 1;
1123: }
1124: }
1125: if ($setprivs) {
1.198 raeburn 1126: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1.185 raeburn 1127: my $role = $1;
1128: my $custom_role = $2;
1129: my $usec = $3;
1130: if ($role eq 'cr') {
1.199 raeburn 1131: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1.185 raeburn 1132: $role .= $custom_role;
1133: } else {
1134: return;
1135: }
1136: }
1137: my (%userroles,%newrole,%newgroups);
1138: my $area = '/'.$cdom.'/'.$cnum;
1139: my $spec = $role.'.'.$area;
1140: if ($usec ne '') {
1141: $spec .= '/'.$usec;
1142: $area .= '/'.$usec;
1143: }
1144: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1145: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,%newgroups);
1146: my $adhocstart = $then-1;
1147: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1.186 raeburn 1148: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.185 raeburn 1149: }
1150: }
1151: }
1152: return;
1153: }
1154:
1155: sub check_forcc {
1156: my ($cdom,$cnum,$then) = @_;
1157: my $is_cc;
1158: if ($cdom ne '' && $cnum ne '') {
1159: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1160: my $envkey = 'user.role.cc./'.$cdom.'/'.$cnum;
1161: if (defined($env{$envkey})) {
1162: $is_cc = 1;
1163: my ($tstart,$tend)=split(/\./,$env{$envkey});
1164: if ($tstart && $tstart>$then) { $is_cc = 0; }
1165: if ($tend && $tend <$then) { $is_cc = 0; }
1166: }
1167: }
1168: }
1169: return $is_cc;
1170: }
1171:
1.108 raeburn 1172: sub courselink {
1.193 raeburn 1173: my ($dcdom,$rowtype) = @_;
1.109 raeburn 1174: my $courseform=&Apache::loncommon::selectcourse_link
1.152 raeburn 1175: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1176: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1.173 albertel 1177: $dcdom,$dcdom,undef);
1.138 raeburn 1178: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1179: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1180: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1181: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 1182: return $courseform.$hiddenitems;
1.109 raeburn 1183: }
1184:
1185: sub coursepick_jscript {
1.184 raeburn 1186: my %lt = &Apache::lonlocal::texthash(
1187: plsu => "Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.",
1188: youc => 'You can only use this screen to select courses in the current domain.',
1189: );
1.104 raeburn 1190: my $verify_script = <<"END";
1.179 raeburn 1191: <script type="text/javascript">
1.108 raeburn 1192: function verifyCoursePick(caller) {
1193: var numbutton = getIndex(caller)
1.112 raeburn 1194: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1195: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1196: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 1197: if (pickedCourse != '') {
1.108 raeburn 1198: if (numbutton != -1) {
1199: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1200: document.rolechoice.elements[numbutton+1].name = courseTarget
1201: document.rolechoice.submit()
1202: }
1.104 raeburn 1203: }
1204: else {
1.184 raeburn 1205: alert("$lt{'plsu'}");
1.104 raeburn 1206: }
1207: }
1208: else {
1.184 raeburn 1209: alert("$lt{'youc'}")
1.104 raeburn 1210: }
1211: }
1.109 raeburn 1212: function getIndex(caller) {
1.108 raeburn 1213: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 1214: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 1215: return i;
1216: }
1217: }
1218: return -1;
1219: }
1.104 raeburn 1220: </script>
1221: END
1.109 raeburn 1222: return $verify_script;
1.104 raeburn 1223: }
1224:
1.193 raeburn 1225: sub coauthorlink {
1226: my ($dcdom,$rowtype) = @_;
1227: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1228: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1229: return $coauthorform.$hiddenitems;
1230: }
1231:
1.113 raeburn 1232: sub display_cc_role {
1233: my $rolekey = shift;
1234: my $roletext;
1.118 albertel 1235: my $advanced = $env{'user.adv'};
1236: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 1237: unless ($rolekey =~/^error\:/) {
1.171 albertel 1238: if ($rolekey =~ m-^user\.role.cc\./($match_domain)/($match_courseid)$-) {
1.113 raeburn 1239: my $tcourseid = $1.'_'.$2;
1240: my $trolecode = 'cc./'.$1.'/'.$2;
1241: my $twhere;
1.152 raeburn 1242: my $ttype;
1.113 raeburn 1243: my $tbg='#77FF77';
1244: my $tfont='#003300';
1245: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1246: if (%newhash) {
1247: $twhere=$newhash{'description'}.
1248: ' <font size="-2">'.
1249: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
1250: '</font>';
1.153 raeburn 1251: $ttype = $newhash{'type'};
1.113 raeburn 1252: } else {
1253: $twhere=&mt('Currently not available');
1.118 albertel 1254: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 1255: }
1.153 raeburn 1256: my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113 raeburn 1257: $twhere.="<br />".&mt('Domain').":".$1;
1.152 raeburn 1258: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,$twhere,'','','',1,'');
1.104 raeburn 1259: }
1260: }
1.152 raeburn 1261: return ($roletext);
1.104 raeburn 1262: }
1263:
1.192 raeburn 1264: sub adhoc_roles_row {
1.138 raeburn 1265: my ($dcdom,$rowtype) = @_;
1.132 albertel 1266: my $output = '<tr bgcolor="#77FF77">'.
1.192 raeburn 1267: ' <td colspan="5"><table><tr><td><span class="LC_rolesinfo">'
1268: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --',
1269: '<span class="LC_cusr_emph">','</span>',$dcdom).'</span></td><td>';
1.193 raeburn 1270: my $selectcclink = &courselink($dcdom,$rowtype);
1.173 albertel 1271: my $ccrole = &Apache::lonnet::plaintext('cc');
1.182 www 1272: my $carole = &Apache::lonnet::plaintext('ca');
1.193 raeburn 1273: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1.182 www 1274: $output.= '<span class="LC_rolesinfo">'.
1.193 raeburn 1275: &mt('[_1]: [_2]',$ccrole,$selectcclink).
1.192 raeburn 1276: '</span><br /></td><td> </td><td><span class="LC_rolesinfo">'.
1.193 raeburn 1277: &mt('[_1]: [_2]',$carole,$selectcalink).
1.192 raeburn 1278: '</span><br /></td></tr></table></td></tr>'.
1279: '<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 1280: return $output;
1281: }
1282:
1.104 raeburn 1283: sub recent_filename {
1284: my $area=shift;
1.149 www 1285: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1286: }
1287:
1.106 raeburn 1288: sub set_privileges {
1.182 www 1289: # role can be cc or ca
1290: my ($dcdom,$pickedcourse,$role) = @_;
1.106 raeburn 1291: my $area = '/'.$dcdom.'/'.$pickedcourse;
1292: my $spec = $role.'.'.$area;
1.168 albertel 1293: my %userroles = &Apache::lonnet::set_arearole($role,$area,'','',
1294: $env{'user.domain'},
1295: $env{'user.name'});
1.106 raeburn 1296: my %ccrole = ();
1297: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.154 albertel 1298: my ($author,$adv)= &Apache::lonnet::set_userprivs(\%userroles,\%ccrole);
1.186 raeburn 1299: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.184 raeburn 1300:
1.118 albertel 1301: &Apache::lonnet::log($env{'user.domain'},
1302: $env{'user.name'},
1303: $env{'user.home'},
1.106 raeburn 1304: "Role ".$role);
1305: &Apache::lonnet::appenv(
1.186 raeburn 1306: {'request.role' => $spec,
1.106 raeburn 1307: 'request.role.domain' => $dcdom,
1.186 raeburn 1308: 'request.course.sec' => ''});
1.106 raeburn 1309: my $tadv=0;
1310: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 1311: &Apache::lonnet::appenv({'request.role.adv' => $tadv});
1.106 raeburn 1312: }
1313:
1.139 raeburn 1314: sub courseloadpage {
1315: my ($courseid) = @_;
1316: my $startpage;
1.144 albertel 1317: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1318: [$courseid.':courseinit']);
1.139 raeburn 1319: my ($tmp) = %entry_settings;
1.144 albertel 1320: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1321: $startpage = $entry_settings{$courseid.':courseinit'};
1322: }
1323: if ($startpage eq '') {
1324: if (exists($env{'environment.course_init_display'})) {
1325: $startpage = $env{'environment.course_init_display'};
1326: }
1327: }
1328: return $startpage;
1329: }
1330:
1.1 harris41 1331: 1;
1332: __END__
1.32 harris41 1333:
1334: =head1 NAME
1335:
1336: Apache::lonroles - User Roles Screen
1337:
1338: =head1 SYNOPSIS
1339:
1340: Invoked by /etc/httpd/conf/srm.conf:
1341:
1342: <Location /adm/roles>
1343: PerlAccessHandler Apache::lonacc
1344: SetHandler perl-script
1345: PerlHandler Apache::lonroles
1346: ErrorDocument 403 /adm/login
1347: ErrorDocument 500 /adm/errorhandler
1348: </Location>
1.64 bowersj2 1349:
1350: =head1 OVERVIEW
1351:
1352: =head2 Choosing Roles
1353:
1354: C<lonroles> is a handler that allows a user to switch roles in
1355: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1356: default role that a user has before selecting a role, as widely as
1357: possible, but certain handlers for example need specification which
1358: course they should act on, etc. Both in this scenario, and when the
1359: handler determines via C<lonnet>'s C<&allowed> function that a certain
1360: action is not allowed, C<lonroles> is used as error handler. This
1361: allows the user to select another role which may have permission to do
1362: what they were trying to do. C<lonroles> can also be accessed via the
1363: B<CRS> button in the Remote Control.
1364:
1365: =begin latex
1366:
1367: \begin{figure}
1368: \begin{center}
1369: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1370: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1371: \end{center}
1372: \end{figure}
1373:
1374: =end latex
1375:
1376: =head2 Role Initialization
1377:
1378: 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 1379:
1380: =head1 INTRODUCTION
1381:
1382: This module enables a user to select what role he wishes to
1383: operate under (instructor, student, teaching assistant, course
1384: coordinator, etc). These roles are pre-established by the actions
1385: of upper-level users.
1386:
1387: This is part of the LearningOnline Network with CAPA project
1388: described at http://www.lon-capa.org.
1389:
1390: =head1 HANDLER SUBROUTINE
1391:
1392: This routine is called by Apache and mod_perl.
1393:
1394: =over 4
1395:
1396: =item *
1397:
1398: Roles Initialization (yes/no)
1399:
1400: =item *
1401:
1402: Get Error Message from Environment
1403:
1404: =item *
1405:
1406: Who is this?
1407:
1408: =item *
1409:
1410: Generate Page Output
1411:
1412: =item *
1413:
1414: Choice or no choice
1415:
1416: =item *
1417:
1418: Table
1419:
1420: =item *
1421:
1422: Privileges
1423:
1424: =back
1425:
1426: =cut
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