Annotation of loncom/auth/lonroles.pm, revision 1.188
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.188 ! www 4: # $Id: lonroles.pm,v 1.187 2008/03/17 14:38:30 bisitz 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);
1.149 www 46:
1.1 harris41 47:
1.62 matthew 48: sub redirect_user {
1.95 albertel 49: my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62 matthew 50: $msg = $title if (! defined($msg));
1.73 www 51: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 52: &Apache::loncommon::no_cache($r);
53: $r->send_http_header;
54: my $swinfo=&Apache::lonmenu::rawconfig();
1.96 albertel 55: my $navwindow;
1.95 albertel 56: if ($launch_nav eq 'on') {
1.166 albertel 57: $navwindow.=&Apache::lonnavdisplay::launch_win('now',undef,undef,
58: ($url =~ m-^/adm/whatsnew-));
1.96 albertel 59: } else {
60: $navwindow.=&Apache::lonnavmaps::close();
1.95 albertel 61: }
1.147 albertel 62: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
63: {'redirect' => [1,$url],});
64: my $end_page = &Apache::loncommon::end_page();
65:
1.92 www 66: # Note to style police:
67: # This must only replace the spaces, nothing else, or it bombs elsewhere.
68: $url=~s/ /\%20/g;
1.93 albertel 69: $r->print(<<ENDREDIR);
1.147 albertel 70: $start_page
1.96 albertel 71: <script type="text/javascript">
1.62 matthew 72: $swinfo
73: </script>
1.96 albertel 74: $navwindow
1.62 matthew 75: <h1>$msg</h1>
1.147 albertel 76: $end_page
1.62 matthew 77: ENDREDIR
78: return;
79: }
80:
1.150 www 81: sub error_page {
82: my ($r,$error,$dest)=@_;
83: &Apache::loncommon::content_type($r,'text/html');
84: &Apache::loncommon::no_cache($r);
85: $r->send_http_header;
86: return OK if $r->header_only;
87: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
88: '<script type="text/javascript">'.
89: &Apache::lonmenu::rawconfig().'</script>'.
90: '<p>'.&mt('The following problems occurred:').
91: $error.
1.156 albertel 92: '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
1.150 www 93: &Apache::loncommon::end_page());
94: }
95:
1.1 harris41 96: sub handler {
1.10 www 97:
1.1 harris41 98: my $r = shift;
99:
1.6 www 100: my $now=time;
1.118 albertel 101: my $then=$env{'user.login.time'};
1.6 www 102: my $envkey;
1.107 raeburn 103: my %dcroles = ();
104: my $numdc = &check_fordc(\%dcroles,$then);
1.148 albertel 105: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10 www 106:
1.6 www 107: # ================================================================== Roles Init
1.118 albertel 108: if ($env{'form.selectrole'}) {
1.188 ! www 109:
! 110: my $locknum=&Apache::lonnet::get_locks();
! 111: if ($locknum) { return 409; }
! 112:
1.134 www 113: if ($env{'form.newrole'}) {
114: $env{'form.'.$env{'form.newrole'}}=1;
115: }
1.118 albertel 116: if ($env{'request.course.id'}) {
1.185 raeburn 117: # Check if user is CC trying to select a course role
118: if ($env{'form.switchrole'}) {
119: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
120: &adhoc_course_role($then);
121: }
122: }
1.118 albertel 123: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 124: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 125: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 126: }
1.186 raeburn 127: &Apache::lonnet::appenv({"request.course.id" => '',
128: "request.course.fn" => '',
129: "request.course.uri" => '',
130: "request.course.sec" => '',
131: "request.role" => 'cm',
132: "request.role.adv" => $env{'user.adv'},
133: "request.role.domain" => $env{'user.domain'}});
1.182 www 134: # Check if user is a DC trying to enter a course or author space and needs privs to be created
1.107 raeburn 135: if ($numdc > 0) {
1.118 albertel 136: foreach my $envkey (keys %env) {
1.182 www 137: # Is this an ad-hoc CC-role?
1.146 raeburn 138: if (my ($domain,$coursenum) =
1.171 albertel 139: ($envkey =~ m-^form\.cc\./($match_domain)/($match_courseid)$-)) {
1.146 raeburn 140: if ($dcroles{$domain}) {
1.182 www 141: &check_privs($domain,$coursenum,$then,$now,'cc');
142: }
143: last;
144: }
145: # Is this a recent ad-hoc CA-role?
1.183 www 146: if (my ($domain,$user) =
147: ($envkey =~ m-^form\.ca\./($match_domain)/($match_username)$-)) {
148: if (($dcroles{$domain}) && (&is_author_homeserver($user,$domain))) {
149: &check_privs($domain,$user,$then,$now,'ca');
150: } else {
151: delete($env{$envkey});
1.182 www 152: }
153: last;
154: }
155: # Is this a new ad-hoc CA-role?
156: if (my ($domain) =
157: ($envkey =~ m-^form\.adhocca\./($match_domain)$-)) {
158: if ($dcroles{$domain}) {
159: my $user=$env{'form.adhoccauname.'.$domain};
160: if (!$user) { $user=$env{'form.adhoccaunamerecent.'.$domain} };
1.183 www 161: if (($user) && ($user=~/$match_username/) && (&is_author_homeserver($user,$domain))) {
1.182 www 162: &check_privs($domain,$user,$then,$now,'ca');
163: $env{'form.ca./'.$domain.'/'.$user}=1;
164: }
1.107 raeburn 165: }
166: last;
167: }
168: }
169: }
170:
1.118 albertel 171: foreach $envkey (keys %env) {
1.40 matthew 172: next if ($envkey!~/^user\.role\./);
1.102 raeburn 173: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
174: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 175: if ($env{'form.'.$trolecode}) {
1.55 albertel 176: if ($tstatus eq 'is') {
177: $where=~s/^\///;
178: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 179: # check for course groups
180: my %coursegroups = &Apache::lonnet::get_active_groups(
181: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
182: my $cgrps = join(':',keys(%coursegroups));
183:
1.111 albertel 184: # store role if recent_role list being kept
1.118 albertel 185: if ($env{'environment.recentroles'}) {
1.158 albertel 186: my %frozen_roles =
187: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111 albertel 188: &Apache::lonhtmlcommon::store_recent('roles',
1.158 albertel 189: $trolecode,' ',$frozen_roles{$trolecode});
1.111 albertel 190: }
191:
192:
1.53 www 193: # check for keyed access
1.55 albertel 194: if (($role eq 'st') &&
1.118 albertel 195: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 196: # who is key authority?
197: my $authdom=$cdom;
198: my $authnum=$cnum;
1.118 albertel 199: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 200: ($authnum,$authdom)=
1.172 albertel 201: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 202: }
203: # check with key authority
204: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 205: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 206: $authdom,$authnum)) {
1.53 www 207: # there is no valid key
1.118 albertel 208: if ($env{'form.newkey'}) {
1.53 www 209: # student attempts to register a new key
1.89 www 210: &Apache::loncommon::content_type($r,'text/html');
211: &Apache::loncommon::no_cache($r);
212: $r->send_http_header;
213: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 214: my $start_page=&Apache::loncommon::start_page
1.89 www 215: ('Verifying Access Key to Unlock this Course');
1.147 albertel 216: my $end_page=&Apache::loncommon::end_page();
1.90 www 217: my $buttontext=&mt('Enter Course');
218: my $message=&mt('Successfully registered key');
219: my $assignresult=
220: &Apache::lonnet::assign_access_key(
1.118 albertel 221: $env{'form.newkey'},
1.90 www 222: $authdom,$authnum,
1.91 www 223: $cdom,$cnum,
1.118 albertel 224: $env{'user.domain'},
225: $env{'user.name'},
1.90 www 226: 'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
227: $trolecode);
228: unless ($assignresult eq 'ok') {
229: $assignresult=~s/^error\:\s*//;
230: $message=&mt($assignresult).
231: '<br /><a href="/adm/logout">'.
1.89 www 232: &mt('Logout').'</a>';
1.90 www 233: $buttontext=&mt('Re-Enter Key');
234: }
1.89 www 235: $r->print(<<ENDENTEREDKEY);
1.147 albertel 236: $start_page
1.179 raeburn 237: <script type="text/javascript">
1.89 www 238: $swinfo
239: </script>
240: <form method="post">
241: <input type="hidden" name="selectrole" value="1" />
242: <input type="hidden" name="$trolecode" value="1" />
1.90 www 243: <font size="+2">$message</font><br />
1.89 www 244: <input type="submit" value="$buttontext" />
245: </form>
1.147 albertel 246: $end_page
1.89 www 247: ENDENTEREDKEY
248: return OK;
1.55 albertel 249: } else {
1.53 www 250: # print form to enter a new key
1.73 www 251: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 252: &Apache::loncommon::no_cache($r);
253: $r->send_http_header;
254: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 255: my $start_page=&Apache::loncommon::start_page
1.55 albertel 256: ('Enter Access Key to Unlock this Course');
1.147 albertel 257: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 258: $r->print(<<ENDENTERKEY);
1.147 albertel 259: $start_page
1.179 raeburn 260: <script type="text/javascript">
1.53 www 261: $swinfo
262: </script>
263: <form method="post">
1.89 www 264: <input type="hidden" name="selectrole" value="1" />
265: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 266: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 267: <input type="submit" value="Enter key" />
268: </form>
1.147 albertel 269: $end_page
1.53 www 270: ENDENTERKEY
1.55 albertel 271: return OK;
272: }
273: }
274: }
1.118 albertel 275: &Apache::lonnet::log($env{'user.domain'},
276: $env{'user.name'},
277: $env{'user.home'},
1.87 www 278: "Role ".$trolecode);
1.101 albertel 279:
1.56 www 280: &Apache::lonnet::appenv(
1.186 raeburn 281: {'request.role' => $trolecode,
282: 'request.role.domain' => $cdom,
283: 'request.course.sec' => $csec,
284: 'request.course.groups' => $cgrps});
1.101 albertel 285: my $tadv=0;
1.62 matthew 286:
1.125 www 287: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152 raeburn 288: my $msg;
1.55 albertel 289: my ($furl,$ferr)=
290: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 291: if (($env{'form.orgurl'}) &&
292: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
293: my $dest=$env{'form.orgurl'};
1.117 albertel 294: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 295: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.150 www 296: if (($ferr) && ($tadv)) {
297: &error_page($r,$ferr,$dest);
298: } else {
299: $r->internal_redirect($dest);
300: }
1.55 albertel 301: return OK;
302: } else {
1.155 albertel 303: if (!$env{'request.course.id'}) {
1.55 albertel 304: &Apache::lonnet::appenv(
1.186 raeburn 305: {"request.course.id" => $cdom.'_'.$cnum});
1.61 www 306: $furl='/adm/roles?tryagain=1';
1.55 albertel 307: $msg=
1.157 albertel 308: '<h1><span class="LC_error">'.
1.162 albertel 309: &mt('Could not initialize [_1] at this time.',
310: $env{'course.'.$cdom.'_'.$cnum.'.description'}).
1.157 albertel 311: '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 312: }
1.117 albertel 313: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 314: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.152 raeburn 315:
1.150 www 316: if (($ferr) && ($tadv)) {
317: &error_page($r,$ferr,$furl);
318: } else {
319: # Check to see if the user is a CC entering a course
320: # for the first time
321: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
322: if (substr($courseid, 0, 1) eq '/') {
323: $courseid = substr($courseid, 1);
324: }
325: $courseid =~ s/\//_/;
326: if ($role eq 'cc' && $env{'course.' . $courseid .
327: '.course.helper.not.run'}) {
328: $furl = "/adm/helper/course.initialization.helper";
329: # Send the user to the course they selected
330: } elsif ($env{'request.course.id'}) {
1.185 raeburn 331: if ($env{'form.destinationurl'}) {
332: my $dest = $env{'form.destinationurl'};
333: &redirect_user($r,&mt('Entering [_1]',
334: $env{'course.'.$courseid.'.description'}),
335: $dest,$msg,
336: $env{'environment.remotenavmap'});
337: return OK;
338: }
1.150 www 339: if (&Apache::lonnet::allowed('whn',
340: $env{'request.course.id'})
341: || &Apache::lonnet::allowed('whn',
342: $env{'request.course.id'}.'/'
343: .$env{'request.course.sec'})
344: ) {
345: my $startpage = &courseloadpage($courseid);
346: unless ($startpage eq 'firstres') {
1.162 albertel 347: $msg = &mt('Entering [_1] ....',
348: $env{'course.'.$courseid.'.description'});
1.150 www 349: &redirect_user($r,&mt('New in course'),
350: '/adm/whatsnew?refpage=start',$msg,
351: $env{'environment.remotenavmap'});
352: return OK;
353: }
354: }
355: }
1.151 www 356: # Are we allowed to look at the first resource?
1.169 albertel 357: if ($furl !~ m|^/adm/|) {
1.151 www 358: # Guess not ...
359: $furl=&Apache::lonpageflip::first_accessible_resource();
360: }
1.162 albertel 361: $msg = &mt('Entering [_1] ...',
362: $env{'course.'.$courseid.'.description'});
363: &redirect_user($r,&mt('Entering [_1]',
364: $env{'course.'.$courseid.'.description'}),
1.150 www 365: $furl,$msg,
366: $env{'environment.remotenavmap'});
1.58 bowersj2 367: }
1.124 albertel 368: return OK;
1.55 albertel 369: }
370: }
1.62 matthew 371: #
372: # Send the user to the construction space they selected
1.125 www 373: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 374: my $redirect_url = '/priv/';
375: if ($role eq 'au') {
1.118 albertel 376: $redirect_url.=$env{'user.name'};
1.62 matthew 377: } else {
378: $where =~ /\/(.*)$/;
379: $redirect_url .= $1;
380: }
381: $redirect_url .= '/';
1.78 sakharuk 382: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 383: $redirect_url);
384: return OK;
385: }
1.104 raeburn 386: if ($role eq 'dc') {
1.108 raeburn 387: my $redirect_url = '/adm/menu/';
388: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 389: $redirect_url);
1.108 raeburn 390: return OK;
1.104 raeburn 391: }
1.55 albertel 392: }
393: }
1.6 www 394: }
1.40 matthew 395: }
1.44 www 396:
1.10 www 397:
1.6 www 398: # =============================================================== No Roles Init
1.10 www 399:
1.73 www 400: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 401: &Apache::loncommon::no_cache($r);
1.10 www 402: $r->send_http_header;
403: return OK if $r->header_only;
404:
1.52 www 405: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 406: my $start_page=&Apache::loncommon::start_page('User Roles');
1.134 www 407: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 408: $standby=~s/\n/\\n/g;
1.184 raeburn 409: 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 410:
1.10 www 411: $r->print(<<ENDHEADER);
1.147 albertel 412: $start_page
1.163 www 413: <br />
1.179 raeburn 414: <noscript>
415: $noscript
416: </noscript>
417: <script type="text/javascript">
1.26 www 418: $swinfo
419: window.focus();
1.134 www 420:
421: active=true;
422:
423: function enterrole (thisform,rolecode,buttonname) {
424: if (active) {
425: active=false;
426: document.title='$standby';
427: window.status='$standby';
428: thisform.newrole.value=rolecode;
429: thisform.submit();
430: } else {
431: alert('$standby');
432: }
433: }
1.26 www 434: </script>
1.10 www 435: ENDHEADER
1.6 www 436:
1.2 www 437: # ------------------------------------------ Get Error Message from Environment
438:
1.118 albertel 439: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
440: if ($env{'user.error.msg'}) {
1.55 albertel 441: $r->log_reason(
1.118 albertel 442: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 443: }
1.1 harris41 444:
1.61 www 445: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 446:
1.118 albertel 447: my $advanced=$env{'user.adv'};
1.61 www 448: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 449: my $tryagain=$env{'form.tryagain'};
1.6 www 450:
1.2 www 451: # -------------------------------------------------------- Generate Page Output
1.6 www 452: # --------------------------------------------------------------- Error Header?
1.2 www 453: if ($error) {
1.187 bisitz 454: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
1.174 albertel 455: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
456: if ($priv ne '') {
1.187 bisitz 457: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
1.174 albertel 458: }
459: if ($fn ne '') {
1.187 bisitz 460: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
1.174 albertel 461: }
462: if ($msg ne '') {
1.187 bisitz 463: $r->print(&mt('Action : ').$msg."\n");
1.174 albertel 464: }
465: $r->print("</pre><hr />");
1.120 albertel 466: my $url=$fn;
467: my $last;
468: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
469: &GDBM_READER(),0640)) {
470: $last=$hash{'last_known'};
471: untie(%hash);
472: }
1.149 www 473: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 474:
475: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
476: &Apache::lonenc::check_encrypt($fn));
1.2 www 477: } else {
1.118 albertel 478: if ($env{'user.error.msg'}) {
1.25 www 479: $r->print(
1.157 albertel 480: '<h3><span class="LC_error">'.
481: &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
1.25 www 482: }
1.2 www 483: }
1.6 www 484: # -------------------------------------------------------- Choice or no choice?
1.2 www 485: if ($nochoose) {
1.177 www 486: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
487: &mt('This action is currently not authorized.').'</span>'.
1.150 www 488: &Apache::loncommon::end_page());
489: return OK;
1.6 www 490: } else {
1.18 www 491: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
492: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 493: }
1.84 www 494: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 495: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
496: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 497: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 498: }
1.118 albertel 499: if ($env{'user.adv'}) {
1.63 www 500: $r->print(
1.177 www 501: '<br /><span class="LC_rolesinfo"><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.118 albertel 502: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.177 www 503: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" /></span>');
1.63 www 504: }
1.4 www 505:
1.75 albertel 506: my (%roletext,%sortrole,%roleclass);
1.84 www 507: my $countactive=0;
508: my $inrole=0;
509: my $possiblerole='';
1.118 albertel 510: foreach $envkey (sort keys %env) {
1.35 matthew 511: my $button = 1;
1.49 www 512: my $switchserver='';
1.75 albertel 513: my $roletext;
514: my $sortkey;
1.2 www 515: if ($envkey=~/^user\.role\./) {
1.102 raeburn 516: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
517: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 518: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102 raeburn 519: $tremark='';
520: $tpstart=' ';
521: $tpend=' ';
522: $tfont='#000000';
1.4 www 523: if ($tstart) {
1.74 www 524: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 525: }
526: if ($tend) {
1.74 www 527: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 528: }
1.118 albertel 529: if ($env{'request.role'} eq $trolecode) {
1.6 www 530: $tstatus='selected';
531: }
1.4 www 532: my $tbg;
1.164 albertel 533: if (($tstatus eq 'is')
534: || ($tstatus eq 'selected')
535: || ($tstatus eq 'will')
536: || ($tstatus eq 'future')
537: || ($env{'form.showall'})) {
1.35 matthew 538: if ($tstatus eq 'is') {
539: $tbg='#77FF77';
1.47 www 540: $tfont='#003300';
1.84 www 541: $possiblerole=$trolecode;
542: $countactive++;
1.35 matthew 543: } elsif ($tstatus eq 'future') {
544: $tbg='#FFFF77';
1.49 www 545: $button=0;
1.35 matthew 546: } elsif ($tstatus eq 'will') {
547: $tbg='#FFAA77';
1.72 www 548: $tremark.=&mt('Active at next login. ');
1.35 matthew 549: } elsif ($tstatus eq 'expired') {
550: $tbg='#FF7777';
1.47 www 551: $tfont='#330000';
1.49 www 552: $button=0;
1.35 matthew 553: } elsif ($tstatus eq 'will_not') {
554: $tbg='#AAFF77';
1.72 www 555: $tremark.=&mt('Expired after logout. ');
1.35 matthew 556: } elsif ($tstatus eq 'selected') {
557: $tbg='#11CC55';
1.47 www 558: $tfont='#002200';
1.84 www 559: $inrole=1;
1.86 albertel 560: $countactive++;
1.72 www 561: $tremark.=&mt('Currently selected. ');
1.35 matthew 562: }
563: my $trole;
564: if ($role =~ /^cr\//) {
565: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 566: if ($tremark) { $tremark.='<br />'; }
567: $tremark.=&mt('Defined by ').$rauthor.
1.72 www 568: &mt(' at ').$rdomain.'.';
1.159 albertel 569: }
570: $trole=Apache::lonnet::plaintext($role);
1.35 matthew 571: my $ttype;
572: my $twhere;
573: my ($tdom,$trest,$tsection)=
574: split(/\//,Apache::lonnet::declutter($where));
575: # First, Co-Authorship roles
1.125 www 576: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 577: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 578: my $allowed=0;
579: my @ids=&Apache::lonnet::current_machine_ids();
580: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
581: if (!$allowed) {
1.49 www 582: $button=0;
1.130 albertel 583: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 584: }
1.35 matthew 585: #next if ($home eq 'no_host');
1.176 albertel 586: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 587: $ttype='Construction Space';
1.72 www 588: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
589: ': '.$tdom.'<br />'.
590: ' '.&mt('Server').': '.$home;
1.118 albertel 591: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 592: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 593: $sortkey=$role."$trest:$tdom";
1.35 matthew 594: } elsif ($role eq 'au') {
595: # Authors
596: my $home = &Apache::lonnet::homeserver
1.118 albertel 597: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 598: my $allowed=0;
599: my @ids=&Apache::lonnet::current_machine_ids();
600: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
601: if (!$allowed) {
1.49 www 602: $button=0;
1.143 albertel 603: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 604: }
1.35 matthew 605: #next if ($home eq 'no_host');
1.176 albertel 606: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 607: $ttype='Construction Space';
1.72 www 608: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
609: ': '.$home;
1.118 albertel 610: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
611: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 612: $sortkey=$role;
1.35 matthew 613: } elsif ($trest) {
614: my $tcourseid=$tdom.'_'.$trest;
1.153 raeburn 615: $ttype = &Apache::loncommon::course_type($tcourseid);
616: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.118 albertel 617: if ($env{'course.'.$tcourseid.'.description'}) {
618: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 619: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 620: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 621: $twhere.=' <font size="-2">'.
1.72 www 622: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 623: '</font>';
1.55 albertel 624: }
1.8 www 625: } else {
1.105 raeburn 626: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 627: if (%newhash) {
1.80 albertel 628: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 629: "\0".$envkey;
1.49 www 630: $twhere=$newhash{'description'}.
631: ' <font size="-2">'.
1.72 www 632: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 633: '</font>';
1.152 raeburn 634: $ttype = $newhash{'type'};
1.153 raeburn 635: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.35 matthew 636: } else {
1.72 www 637: $twhere=&mt('Currently not available');
1.118 albertel 638: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 639: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.152 raeburn 640: $ttype = 'Unavailable';
1.35 matthew 641: }
1.8 www 642: }
1.121 albertel 643: if ($tsection) {
1.175 albertel 644: $twhere.='<br />'.&mt('Section').': '.$tsection;
1.121 albertel 645: }
1.72 www 646: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 647: } elsif ($tdom) {
1.78 sakharuk 648: $ttype='Domain';
1.35 matthew 649: $twhere=$tdom;
1.75 albertel 650: $sortkey=$role.$twhere;
1.35 matthew 651: } else {
1.78 sakharuk 652: $ttype='System';
1.72 www 653: $twhere=&mt('system wide');
1.75 albertel 654: $sortkey=$role.$twhere;
1.13 www 655: }
1.152 raeburn 656: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 657: $roletext{$envkey}=$roletext;
658: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
659: $sortrole{$sortkey}=$envkey;
660: $roleclass{$envkey}=$ttype;
1.55 albertel 661: }
1.4 www 662: }
1.75 albertel 663: }
1.84 www 664: # No active roles
665: if ($countactive==0) {
666: if ($inrole) {
667: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
668: } else {
669: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
670: }
1.147 albertel 671: $r->print('</form>'.&Apache::loncommon::end_page());
1.84 www 672: return OK;
673: # Is there only one choice?
1.118 albertel 674: } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84 www 675: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
1.179 raeburn 676: '<input type="hidden" name="'.$possiblerole.'" value="1" />'.
677: '<noscript><br /><input type="submit" name="submit" value="'.&mt('Continue').'" /></noscript>');
1.84 www 678: $r->print("</form>\n");
679: $r->rflush();
1.179 raeburn 680: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
1.147 albertel 681: $r->print(&Apache::loncommon::end_page());
1.84 www 682: return OK;
683: }
684: # More than one possible role
685: # ----------------------------------------------------------------------- Table
1.181 albertel 686: unless ((!&Apache::lonmenu::show_course()) || ($nochoose)) {
1.173 albertel 687: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.84 www 688: }
1.177 www 689: $r->print('<br /><table id="LC_rolesmenu"><tr>');
1.84 www 690: unless ($nochoose) { $r->print('<th> </th>'); }
1.121 albertel 691: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132 albertel 692: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76 albertel 693: my $doheaders=-1;
1.173 albertel 694: foreach my $type ('Domain','Construction Space','Course','Unavailable','System') {
1.76 albertel 695: my $haverole=0;
1.75 albertel 696: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
697: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 698: $haverole=1;
1.75 albertel 699: }
1.76 albertel 700: }
701: if ($haverole) { $doheaders++; }
702: }
1.111 albertel 703:
1.118 albertel 704: if ($env{'environment.recentroles'}) {
1.111 albertel 705: my %recent_roles =
1.118 albertel 706: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 707: my $output='';
708: foreach (sort(keys(%recent_roles))) {
709: if (defined($roletext{'user.role.'.$_})) {
710: $output.=$roletext{'user.role.'.$_};
1.170 albertel 711: if ($_ =~ m-dc\./($match_domain)/-
712: && $dcroles{$1}) {
1.182 www 713: $output .= &allcourses_row($1,'recent').
714: &allcoauthors_row($1,'recent');
1.133 albertel 715: }
1.113 raeburn 716: } elsif ($numdc > 0) {
717: unless ($_ =~/^error\:/) {
718: $output.=&display_cc_role('user.role.'.$_);
719: }
720: }
1.111 albertel 721: }
722: if ($output) {
1.132 albertel 723: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126 www 724: &mt('Recent Roles')."</font></td>");
1.111 albertel 725: $r->print($output);
726: $r->print("</tr>");
1.114 raeburn 727: $doheaders ++;
1.111 albertel 728: }
729: }
730:
1.104 raeburn 731: if ($numdc > 0) {
1.112 raeburn 732: $r->print(&coursepick_jscript());
733: $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108 raeburn 734: }
1.173 albertel 735: foreach my $type ('Construction Space','Domain','Course','Unavailable','System') {
1.108 raeburn 736: my $output;
737: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
738: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
739: $output.=$roletext{$sortrole{$which}};
1.170 albertel 740: if ($sortrole{$which} =~ m-dc\./($match_domain)/-) {
1.108 raeburn 741: if ($dcroles{$1}) {
1.182 www 742: $output .= &allcourses_row($1,'').
743: &allcoauthors_row($1,'');
1.104 raeburn 744: }
745: }
1.76 albertel 746: }
1.108 raeburn 747: }
748: if ($output) {
749: if ($doheaders > 0) {
1.126 www 750: $r->print("<tr>".
1.132 albertel 751: "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76 albertel 752: }
1.108 raeburn 753: $r->print($output);
754: }
1.4 www 755: }
1.14 www 756: my $tremark='';
1.47 www 757: my $tfont='#003300';
1.118 albertel 758: if ($env{'request.role'} eq 'cm') {
1.19 www 759: $r->print('<tr bgcolor="#11CC55">');
1.72 www 760: $tremark=&mt('Currently selected. ');
1.47 www 761: $tfont='#002200';
1.14 www 762: } else {
763: $r->print('<tr bgcolor="#77FF77">');
764: }
765: unless ($nochoose) {
1.118 albertel 766: if ($env{'request.role'} ne 'cm') {
1.134 www 767: $r->print('<td><input type="submit" value="'.
1.72 www 768: &mt('Select').'" name="cm"></td>');
1.55 albertel 769: } else {
770: $r->print('<td> </td>');
771: }
1.14 www 772: }
1.177 www 773: $r->print('<td colspan="3"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.&mt('No role specified').
774: '</font></span></td><td><font color="'.$tfont.'">'.$tremark.
1.47 www 775: ' </font></td></tr>'."\n");
1.4 www 776:
777: $r->print('</table>');
778: unless ($nochoose) {
779: $r->print("</form>\n");
780: }
1.22 harris41 781: # ------------------------------------------------------------ Privileges Info
1.118 albertel 782: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 783: $r->print('<hr /><h2>Current Privileges</h2>');
1.175 albertel 784: $r->print(&privileges_info());
1.4 www 785: }
1.66 www 786: $r->print(&Apache::lonnet::getannounce());
1.65 www 787: if ($advanced) {
788: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 789: $r->dir_config('lonVersion').'</i><br />'.
790: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 791: }
1.147 albertel 792: $r->print(&Apache::loncommon::end_page());
1.1 harris41 793: return OK;
1.102 raeburn 794: }
795:
1.175 albertel 796: sub privileges_info {
797: my ($which) = @_;
798: my $output;
799:
800: $which ||= $env{'request.role'};
801:
802: foreach my $envkey (sort(keys(%env))) {
803: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
804:
805: my $where=$1;
806: my $ttype;
807: my $twhere;
808: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
809: if ($trest) {
810: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
811: $ttype='Construction Space';
812: $twhere='User: '.$trest.', Domain: '.$tdom;
813: } else {
814: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
815: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
816: if ($tsec) {
817: my $sec_type = 'Section';
818: if (exists($env{"user.role.gr.$where"})) {
819: $sec_type = 'Group';
820: }
821: $twhere.=' ('.$sec_type.': '.$tsec.')';
822: }
823: }
824: } elsif ($tdom) {
825: $ttype='Domain';
826: $twhere=$tdom;
827: } else {
828: $ttype='System';
829: $twhere='/';
830: }
831: $output .= "\n<h3>".$ttype.': '.$twhere.'</h3>'."\n<ul>";
832: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
833: next if (!$priv);
834:
835: my ($prv,$restr)=split(/\&/,$priv);
836: my $trestr='';
837: if ($restr ne 'F') {
838: $trestr.=' ('.
839: join(', ',
840: map { &Apache::lonnet::plaintext($_) }
841: (split('',$restr))).') ';
842: }
843: $output .= "\n\t".
844: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
845: }
846: $output .= "\n".'</ul>';
847: }
848: return $output;
849: }
850:
1.102 raeburn 851: sub role_status {
852: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
853: my @pwhere = ();
1.118 albertel 854: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 855: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
856: unless (!defined($$role) || $$role eq '') {
857: $$where=join('.',@pwhere);
858: $$trolecode=$$role.'.'.$$where;
1.118 albertel 859: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 860: $$tstatus='is';
1.105 raeburn 861: if ($$tstart && $$tstart>$then) {
862: $$tstatus='future';
863: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 864: }
865: if ($$tend) {
866: if ($$tend<$then) {
867: $$tstatus='expired';
1.103 raeburn 868: } elsif ($$tend<$now) {
1.104 raeburn 869: $$tstatus='will_not';
1.102 raeburn 870: }
871: }
872: }
873: }
874: }
1.1 harris41 875:
1.110 raeburn 876: sub build_roletext {
1.152 raeburn 877: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
1.177 www 878: my $roletext='<tr bgcolor="'.$tbg.'" class="LC_rolesmenu_'.$tstatus.'">';
1.132 albertel 879: my $is_dc=($trolecode =~ m/^dc\./);
880: my $rowspan=($is_dc) ? ''
881: : ' rowspan="2" ';
882:
1.110 raeburn 883: unless ($nochoose) {
1.134 www 884: my $buttonname=$trolecode;
885: $buttonname=~s/\W//g;
1.110 raeburn 886: if (!$button) {
887: if ($switchserver) {
1.177 www 888: $roletext.='<td'.$rowspan.'><span class="LC_rolesinfo"><a href="/adm/switchserver?'.
889: $switchserver.'">'.&mt('Switch Server').'</a></span></td>';
1.110 raeburn 890: } else {
1.164 albertel 891: $roletext.=('<td'.$rowspan.'> </td>');
1.110 raeburn 892: }
893: } elsif ($tstatus eq 'is') {
1.134 www 894: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
895: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
896: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 897: } elsif ($tryagain) {
898: $roletext.=
1.134 www 899: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
900: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
901: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 902: } elsif ($advanced) {
903: $roletext.=
1.134 www 904: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
905: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
906: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 907: } else {
1.132 albertel 908: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 909: }
910: }
1.165 albertel 911: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
912: $tremark.=&Apache::lonannounce::showday(time,1,
913: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
914: }
1.110 raeburn 915: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 916: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 917: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
918: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 919: '</font></td></tr>';
920: if (!$is_dc) {
1.177 www 921: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.$tremark.
922: '</span> </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
1.132 albertel 923: }
1.110 raeburn 924: return $roletext;
925: }
926:
1.183 www 927: sub is_author_homeserver {
928: my ($uname,$udom)=@_;
929: my $home = &Apache::lonnet::homeserver($uname,$udom);
930: my @ids=&Apache::lonnet::current_machine_ids();
931: foreach my $id (@ids) {
932: if ($id eq $home) {
933: if (-e "/home/".$uname."/public_html") {
934: return 1;
935: }
936: }
937: }
938: return 0;
939: }
940:
1.110 raeburn 941: sub check_privs {
1.182 www 942: my ($cdom,$cnum,$then,$now,$checkrole) = @_;
943: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.118 albertel 944: if ($env{$cckey}) {
1.110 raeburn 945: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
946: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
947: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.182 www 948: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 949: }
950: } else {
1.182 www 951: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 952: }
953: }
954:
1.104 raeburn 955: sub check_fordc {
956: my ($dcroles,$then) = @_;
957: my $numdc = 0;
1.118 albertel 958: if ($env{'user.adv'}) {
959: foreach my $envkey (sort keys %env) {
1.170 albertel 960: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1.104 raeburn 961: my $dcdom = $1;
962: my $livedc = 1;
1.118 albertel 963: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 964: if ($tstart && $tstart>$then) { $livedc = 0; }
965: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 966: if ($livedc) {
967: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 968: $numdc++;
1.104 raeburn 969: }
970: }
971: }
972: }
973: return $numdc;
974: }
975:
1.185 raeburn 976: sub adhoc_course_role {
977: my ($then) = @_;
978: my ($cdom,$cnum);
979: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
980: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
981: if (&check_forcc($cdom,$cnum,$then)) {
982: my $setprivs;
983: if (!defined($env{'user.role.'.$env{'form.selectrole'}})) {
984: $setprivs = 1;
985: } else {
986: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.selectrole'}});
987: if (($start && ($start>$then || $start == -1)) ||
988: ($end && $end<$then)) {
989: $setprivs = 1;
990: }
991: }
992: if ($setprivs) {
993: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E(/?\w*)$-) {
994: my $role = $1;
995: my $custom_role = $2;
996: my $usec = $3;
997: if ($role eq 'cr') {
998: if ($custom_role =~ m-^$match_domain/$match_courseid/\w+$-) {
999: $role .= $custom_role;
1000: } else {
1001: return;
1002: }
1003: }
1004: my (%userroles,%newrole,%newgroups);
1005: my $area = '/'.$cdom.'/'.$cnum;
1006: my $spec = $role.'.'.$area;
1007: if ($usec ne '') {
1008: $spec .= '/'.$usec;
1009: $area .= '/'.$usec;
1010: }
1011: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1012: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,%newgroups);
1013: my $adhocstart = $then-1;
1014: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1.186 raeburn 1015: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.185 raeburn 1016: }
1017: }
1018: }
1019: return;
1020: }
1021:
1022: sub check_forcc {
1023: my ($cdom,$cnum,$then) = @_;
1024: my $is_cc;
1025: if ($cdom ne '' && $cnum ne '') {
1026: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1027: my $envkey = 'user.role.cc./'.$cdom.'/'.$cnum;
1028: if (defined($env{$envkey})) {
1029: $is_cc = 1;
1030: my ($tstart,$tend)=split(/\./,$env{$envkey});
1031: if ($tstart && $tstart>$then) { $is_cc = 0; }
1032: if ($tend && $tend <$then) { $is_cc = 0; }
1033: }
1034: }
1035: }
1036: return $is_cc;
1037: }
1038:
1.108 raeburn 1039: sub courselink {
1.152 raeburn 1040: my ($dcdom,$rowtype,$selecttype) = @_;
1.109 raeburn 1041: my $courseform=&Apache::loncommon::selectcourse_link
1.152 raeburn 1042: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1043: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1.173 albertel 1044: $dcdom,$dcdom,undef);
1.138 raeburn 1045: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1046: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1047: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1048: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 1049: return $courseform.$hiddenitems;
1.109 raeburn 1050: }
1051:
1052: sub coursepick_jscript {
1.184 raeburn 1053: my %lt = &Apache::lonlocal::texthash(
1054: plsu => "Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.",
1055: youc => 'You can only use this screen to select courses in the current domain.',
1056: );
1.104 raeburn 1057: my $verify_script = <<"END";
1.179 raeburn 1058: <script type="text/javascript">
1.108 raeburn 1059: function verifyCoursePick(caller) {
1060: var numbutton = getIndex(caller)
1.112 raeburn 1061: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1062: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1063: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 1064: if (pickedCourse != '') {
1.108 raeburn 1065: if (numbutton != -1) {
1066: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1067: document.rolechoice.elements[numbutton+1].name = courseTarget
1068: document.rolechoice.submit()
1069: }
1.104 raeburn 1070: }
1071: else {
1.184 raeburn 1072: alert("$lt{'plsu'}");
1.104 raeburn 1073: }
1074: }
1075: else {
1.184 raeburn 1076: alert("$lt{'youc'}")
1.104 raeburn 1077: }
1078: }
1.109 raeburn 1079: function getIndex(caller) {
1.108 raeburn 1080: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 1081: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 1082: return i;
1083: }
1084: }
1085: return -1;
1086: }
1.104 raeburn 1087: </script>
1088: END
1.109 raeburn 1089: return $verify_script;
1.104 raeburn 1090: }
1091:
1.113 raeburn 1092: sub display_cc_role {
1093: my $rolekey = shift;
1094: my $roletext;
1.118 albertel 1095: my $advanced = $env{'user.adv'};
1096: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 1097: unless ($rolekey =~/^error\:/) {
1.171 albertel 1098: if ($rolekey =~ m-^user\.role.cc\./($match_domain)/($match_courseid)$-) {
1.113 raeburn 1099: my $tcourseid = $1.'_'.$2;
1100: my $trolecode = 'cc./'.$1.'/'.$2;
1101: my $twhere;
1.152 raeburn 1102: my $ttype;
1.113 raeburn 1103: my $tbg='#77FF77';
1104: my $tfont='#003300';
1105: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1106: if (%newhash) {
1107: $twhere=$newhash{'description'}.
1108: ' <font size="-2">'.
1109: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
1110: '</font>';
1.153 raeburn 1111: $ttype = $newhash{'type'};
1.113 raeburn 1112: } else {
1113: $twhere=&mt('Currently not available');
1.118 albertel 1114: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 1115: }
1.153 raeburn 1116: my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113 raeburn 1117: $twhere.="<br />".&mt('Domain').":".$1;
1.152 raeburn 1118: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,$twhere,'','','',1,'');
1.104 raeburn 1119: }
1120: }
1.152 raeburn 1121: return ($roletext);
1.104 raeburn 1122: }
1123:
1.108 raeburn 1124: sub allcourses_row {
1.138 raeburn 1125: my ($dcdom,$rowtype) = @_;
1.132 albertel 1126: my $output = '<tr bgcolor="#77FF77">'.
1.152 raeburn 1127: ' <td colspan="5">';
1.173 albertel 1128: my $selectlink = &courselink($dcdom,$rowtype);
1129: my $ccrole = &Apache::lonnet::plaintext('cc');
1.177 www 1130: $output.= '<span class="LC_rolesinfo">'.
1131: &mt('[_1]: [_2] from domain [_3]',$ccrole,$selectlink,$dcdom).
1.182 www 1132: '</span><br /></tr>'."\n";
1133: return $output;
1134: }
1135:
1136: sub allcoauthors_row {
1137: my ($dcdom,$rowtype) = @_;
1138: my $output = '<tr bgcolor="#77FF77">'.
1139: ' <td colspan="5">';
1140: my $carole = &Apache::lonnet::plaintext('ca');
1141: my $inputlink='<input type="text" size="10" name="adhoccauname'.$rowtype.'.'.$dcdom.'" />';
1142: my $gobutton='<input type="submit" name="adhocca./'.$dcdom.'" value="'.&mt('Go').'" />';
1143: $output.= '<span class="LC_rolesinfo">'.
1144: &mt('[_1]: [_2] in domain [_3] [_4]',$carole,$inputlink,$dcdom,$gobutton).
1.177 www 1145: '</span><br /></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 1146: return $output;
1147: }
1148:
1.104 raeburn 1149: sub recent_filename {
1150: my $area=shift;
1.149 www 1151: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1152: }
1153:
1.106 raeburn 1154: sub set_privileges {
1.182 www 1155: # role can be cc or ca
1156: my ($dcdom,$pickedcourse,$role) = @_;
1.106 raeburn 1157: my $area = '/'.$dcdom.'/'.$pickedcourse;
1158: my $spec = $role.'.'.$area;
1.168 albertel 1159: my %userroles = &Apache::lonnet::set_arearole($role,$area,'','',
1160: $env{'user.domain'},
1161: $env{'user.name'});
1.106 raeburn 1162: my %ccrole = ();
1163: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.154 albertel 1164: my ($author,$adv)= &Apache::lonnet::set_userprivs(\%userroles,\%ccrole);
1.186 raeburn 1165: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.184 raeburn 1166:
1.118 albertel 1167: &Apache::lonnet::log($env{'user.domain'},
1168: $env{'user.name'},
1169: $env{'user.home'},
1.106 raeburn 1170: "Role ".$role);
1171: &Apache::lonnet::appenv(
1.186 raeburn 1172: {'request.role' => $spec,
1.106 raeburn 1173: 'request.role.domain' => $dcdom,
1.186 raeburn 1174: 'request.course.sec' => ''});
1.106 raeburn 1175: my $tadv=0;
1176: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 1177: &Apache::lonnet::appenv({'request.role.adv' => $tadv});
1.106 raeburn 1178: }
1179:
1.139 raeburn 1180: sub courseloadpage {
1181: my ($courseid) = @_;
1182: my $startpage;
1.144 albertel 1183: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1184: [$courseid.':courseinit']);
1.139 raeburn 1185: my ($tmp) = %entry_settings;
1.144 albertel 1186: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1187: $startpage = $entry_settings{$courseid.':courseinit'};
1188: }
1189: if ($startpage eq '') {
1190: if (exists($env{'environment.course_init_display'})) {
1191: $startpage = $env{'environment.course_init_display'};
1192: }
1193: }
1194: return $startpage;
1195: }
1196:
1.1 harris41 1197: 1;
1198: __END__
1.32 harris41 1199:
1200: =head1 NAME
1201:
1202: Apache::lonroles - User Roles Screen
1203:
1204: =head1 SYNOPSIS
1205:
1206: Invoked by /etc/httpd/conf/srm.conf:
1207:
1208: <Location /adm/roles>
1209: PerlAccessHandler Apache::lonacc
1210: SetHandler perl-script
1211: PerlHandler Apache::lonroles
1212: ErrorDocument 403 /adm/login
1213: ErrorDocument 500 /adm/errorhandler
1214: </Location>
1.64 bowersj2 1215:
1216: =head1 OVERVIEW
1217:
1218: =head2 Choosing Roles
1219:
1220: C<lonroles> is a handler that allows a user to switch roles in
1221: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1222: default role that a user has before selecting a role, as widely as
1223: possible, but certain handlers for example need specification which
1224: course they should act on, etc. Both in this scenario, and when the
1225: handler determines via C<lonnet>'s C<&allowed> function that a certain
1226: action is not allowed, C<lonroles> is used as error handler. This
1227: allows the user to select another role which may have permission to do
1228: what they were trying to do. C<lonroles> can also be accessed via the
1229: B<CRS> button in the Remote Control.
1230:
1231: =begin latex
1232:
1233: \begin{figure}
1234: \begin{center}
1235: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1236: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1237: \end{center}
1238: \end{figure}
1239:
1240: =end latex
1241:
1242: =head2 Role Initialization
1243:
1244: 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 1245:
1246: =head1 INTRODUCTION
1247:
1248: This module enables a user to select what role he wishes to
1249: operate under (instructor, student, teaching assistant, course
1250: coordinator, etc). These roles are pre-established by the actions
1251: of upper-level users.
1252:
1253: This is part of the LearningOnline Network with CAPA project
1254: described at http://www.lon-capa.org.
1255:
1256: =head1 HANDLER SUBROUTINE
1257:
1258: This routine is called by Apache and mod_perl.
1259:
1260: =over 4
1261:
1262: =item *
1263:
1264: Roles Initialization (yes/no)
1265:
1266: =item *
1267:
1268: Get Error Message from Environment
1269:
1270: =item *
1271:
1272: Who is this?
1273:
1274: =item *
1275:
1276: Generate Page Output
1277:
1278: =item *
1279:
1280: Choice or no choice
1281:
1282: =item *
1283:
1284: Table
1285:
1286: =item *
1287:
1288: Privileges
1289:
1290: =back
1291:
1292: =cut
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