Annotation of loncom/auth/lonroles.pm, revision 1.205
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.205 ! raeburn 4: # $Id: lonroles.pm,v 1.204 2008/08/22 17:46:52 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);
1.201 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') {
1.205 ! raeburn 152: my %roleshash = &Apache::lonnet::get_my_roles($user,$domain);
! 153: if (!defined($roleshash{$env{'user.name'}.':'.$env{'user.domain'}.':ca'})) {
! 154: delete($env{$envkey});
! 155: $env{'user.error.msg'}=':::1:User '.$user.' in domain '.$domain.' blocked domain coordinator access';
! 156: last;
! 157: }
1.190 www 158: }
1.193 raeburn 159: if ($dcroles{$domain}) {
160: my ($server_status,$home) = &check_author_homeserver($user,$domain);
161: if (($server_status eq 'ok') || ($server_status eq 'switchserver')) {
162: &check_privs($domain,$user,$then,$now,'ca');
163: if ($server_status eq 'switchserver') {
164: my $trolecode = 'ca./'.$domain.'/'.$user;
165: my $switchserver = '/adm/switchserver?'
166: .'otherserver='.$home.'&role='.$trolecode;
167: $r->internal_redirect($switchserver);
168: }
169: } else {
170: delete($env{$envkey});
171: }
1.183 www 172: } else {
173: delete($env{$envkey});
1.182 www 174: }
175: last;
176: }
1.107 raeburn 177: }
178: }
179:
1.118 albertel 180: foreach $envkey (keys %env) {
1.40 matthew 181: next if ($envkey!~/^user\.role\./);
1.102 raeburn 182: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
183: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 184: if ($env{'form.'.$trolecode}) {
1.55 albertel 185: if ($tstatus eq 'is') {
186: $where=~s/^\///;
187: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 188: # check for course groups
189: my %coursegroups = &Apache::lonnet::get_active_groups(
190: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
191: my $cgrps = join(':',keys(%coursegroups));
192:
1.111 albertel 193: # store role if recent_role list being kept
1.118 albertel 194: if ($env{'environment.recentroles'}) {
1.158 albertel 195: my %frozen_roles =
196: &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111 albertel 197: &Apache::lonhtmlcommon::store_recent('roles',
1.158 albertel 198: $trolecode,' ',$frozen_roles{$trolecode});
1.111 albertel 199: }
200:
201:
1.53 www 202: # check for keyed access
1.55 albertel 203: if (($role eq 'st') &&
1.118 albertel 204: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 205: # who is key authority?
206: my $authdom=$cdom;
207: my $authnum=$cnum;
1.118 albertel 208: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 209: ($authnum,$authdom)=
1.172 albertel 210: split(/:/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 211: }
212: # check with key authority
213: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 214: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 215: $authdom,$authnum)) {
1.53 www 216: # there is no valid key
1.118 albertel 217: if ($env{'form.newkey'}) {
1.53 www 218: # student attempts to register a new key
1.89 www 219: &Apache::loncommon::content_type($r,'text/html');
220: &Apache::loncommon::no_cache($r);
221: $r->send_http_header;
222: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 223: my $start_page=&Apache::loncommon::start_page
1.89 www 224: ('Verifying Access Key to Unlock this Course');
1.147 albertel 225: my $end_page=&Apache::loncommon::end_page();
1.90 www 226: my $buttontext=&mt('Enter Course');
227: my $message=&mt('Successfully registered key');
228: my $assignresult=
229: &Apache::lonnet::assign_access_key(
1.118 albertel 230: $env{'form.newkey'},
1.90 www 231: $authdom,$authnum,
1.91 www 232: $cdom,$cnum,
1.118 albertel 233: $env{'user.domain'},
234: $env{'user.name'},
1.204 bisitz 235: &mt('Assigned from [_1] at [_2] for [_3]'
236: ,$ENV{'REMOTE_ADDR'}
237: ,&Apache::lonlocal::locallocaltime()
238: ,$trolecode)
239: );
1.90 www 240: unless ($assignresult eq 'ok') {
241: $assignresult=~s/^error\:\s*//;
242: $message=&mt($assignresult).
243: '<br /><a href="/adm/logout">'.
1.89 www 244: &mt('Logout').'</a>';
1.90 www 245: $buttontext=&mt('Re-Enter Key');
246: }
1.89 www 247: $r->print(<<ENDENTEREDKEY);
1.147 albertel 248: $start_page
1.179 raeburn 249: <script type="text/javascript">
1.89 www 250: $swinfo
251: </script>
252: <form method="post">
253: <input type="hidden" name="selectrole" value="1" />
254: <input type="hidden" name="$trolecode" value="1" />
1.90 www 255: <font size="+2">$message</font><br />
1.89 www 256: <input type="submit" value="$buttontext" />
257: </form>
1.147 albertel 258: $end_page
1.89 www 259: ENDENTEREDKEY
260: return OK;
1.55 albertel 261: } else {
1.53 www 262: # print form to enter a new key
1.73 www 263: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 264: &Apache::loncommon::no_cache($r);
265: $r->send_http_header;
266: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 267: my $start_page=&Apache::loncommon::start_page
1.55 albertel 268: ('Enter Access Key to Unlock this Course');
1.147 albertel 269: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 270: $r->print(<<ENDENTERKEY);
1.147 albertel 271: $start_page
1.179 raeburn 272: <script type="text/javascript">
1.53 www 273: $swinfo
274: </script>
275: <form method="post">
1.89 www 276: <input type="hidden" name="selectrole" value="1" />
277: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 278: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 279: <input type="submit" value="Enter key" />
280: </form>
1.147 albertel 281: $end_page
1.53 www 282: ENDENTERKEY
1.55 albertel 283: return OK;
284: }
285: }
286: }
1.118 albertel 287: &Apache::lonnet::log($env{'user.domain'},
288: $env{'user.name'},
289: $env{'user.home'},
1.87 www 290: "Role ".$trolecode);
1.101 albertel 291:
1.56 www 292: &Apache::lonnet::appenv(
1.186 raeburn 293: {'request.role' => $trolecode,
294: 'request.role.domain' => $cdom,
295: 'request.course.sec' => $csec,
296: 'request.course.groups' => $cgrps});
1.101 albertel 297: my $tadv=0;
1.62 matthew 298:
1.125 www 299: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152 raeburn 300: my $msg;
1.55 albertel 301: my ($furl,$ferr)=
302: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 303: if (($env{'form.orgurl'}) &&
304: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
305: my $dest=$env{'form.orgurl'};
1.117 albertel 306: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 307: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.150 www 308: if (($ferr) && ($tadv)) {
309: &error_page($r,$ferr,$dest);
310: } else {
311: $r->internal_redirect($dest);
312: }
1.55 albertel 313: return OK;
314: } else {
1.155 albertel 315: if (!$env{'request.course.id'}) {
1.55 albertel 316: &Apache::lonnet::appenv(
1.186 raeburn 317: {"request.course.id" => $cdom.'_'.$cnum});
1.61 www 318: $furl='/adm/roles?tryagain=1';
1.55 albertel 319: $msg=
1.157 albertel 320: '<h1><span class="LC_error">'.
1.162 albertel 321: &mt('Could not initialize [_1] at this time.',
322: $env{'course.'.$cdom.'_'.$cnum.'.description'}).
1.157 albertel 323: '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 324: }
1.117 albertel 325: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 326: &Apache::lonnet::appenv({'request.role.adv'=>$tadv});
1.152 raeburn 327:
1.150 www 328: if (($ferr) && ($tadv)) {
329: &error_page($r,$ferr,$furl);
330: } else {
331: # Check to see if the user is a CC entering a course
332: # for the first time
333: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
334: if (substr($courseid, 0, 1) eq '/') {
335: $courseid = substr($courseid, 1);
336: }
337: $courseid =~ s/\//_/;
338: if ($role eq 'cc' && $env{'course.' . $courseid .
339: '.course.helper.not.run'}) {
340: $furl = "/adm/helper/course.initialization.helper";
341: # Send the user to the course they selected
342: } elsif ($env{'request.course.id'}) {
1.185 raeburn 343: if ($env{'form.destinationurl'}) {
344: my $dest = $env{'form.destinationurl'};
1.203 raeburn 345: if ($env{'form.destsymb'} ne '') {
346: my $esc_symb = &HTML::Entities::encode($env{'form.destsymb'},'"<>&');
347: $dest .= '?symb='.$esc_symb;
348: }
1.185 raeburn 349: &redirect_user($r,&mt('Entering [_1]',
350: $env{'course.'.$courseid.'.description'}),
351: $dest,$msg,
352: $env{'environment.remotenavmap'});
353: return OK;
354: }
1.150 www 355: if (&Apache::lonnet::allowed('whn',
356: $env{'request.course.id'})
357: || &Apache::lonnet::allowed('whn',
358: $env{'request.course.id'}.'/'
359: .$env{'request.course.sec'})
360: ) {
361: my $startpage = &courseloadpage($courseid);
362: unless ($startpage eq 'firstres') {
1.204 bisitz 363: $msg = &mt('Entering [_1] ...',
1.162 albertel 364: $env{'course.'.$courseid.'.description'});
1.150 www 365: &redirect_user($r,&mt('New in course'),
366: '/adm/whatsnew?refpage=start',$msg,
367: $env{'environment.remotenavmap'});
368: return OK;
369: }
370: }
371: }
1.151 www 372: # Are we allowed to look at the first resource?
1.169 albertel 373: if ($furl !~ m|^/adm/|) {
1.151 www 374: # Guess not ...
375: $furl=&Apache::lonpageflip::first_accessible_resource();
376: }
1.162 albertel 377: $msg = &mt('Entering [_1] ...',
378: $env{'course.'.$courseid.'.description'});
379: &redirect_user($r,&mt('Entering [_1]',
380: $env{'course.'.$courseid.'.description'}),
1.150 www 381: $furl,$msg,
382: $env{'environment.remotenavmap'});
1.58 bowersj2 383: }
1.124 albertel 384: return OK;
1.55 albertel 385: }
386: }
1.62 matthew 387: #
388: # Send the user to the construction space they selected
1.125 www 389: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 390: my $redirect_url = '/priv/';
391: if ($role eq 'au') {
1.118 albertel 392: $redirect_url.=$env{'user.name'};
1.62 matthew 393: } else {
394: $where =~ /\/(.*)$/;
395: $redirect_url .= $1;
396: }
397: $redirect_url .= '/';
1.78 sakharuk 398: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 399: $redirect_url);
400: return OK;
401: }
1.104 raeburn 402: if ($role eq 'dc') {
1.108 raeburn 403: my $redirect_url = '/adm/menu/';
404: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 405: $redirect_url);
1.108 raeburn 406: return OK;
1.104 raeburn 407: }
1.55 albertel 408: }
409: }
1.6 www 410: }
1.40 matthew 411: }
1.44 www 412:
1.10 www 413:
1.6 www 414: # =============================================================== No Roles Init
1.10 www 415:
1.73 www 416: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 417: &Apache::loncommon::no_cache($r);
1.10 www 418: $r->send_http_header;
419: return OK if $r->header_only;
420:
1.52 www 421: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 422: my $start_page=&Apache::loncommon::start_page('User Roles');
1.134 www 423: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 424: $standby=~s/\n/\\n/g;
1.184 raeburn 425: 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 426:
1.10 www 427: $r->print(<<ENDHEADER);
1.147 albertel 428: $start_page
1.163 www 429: <br />
1.179 raeburn 430: <noscript>
431: $noscript
432: </noscript>
433: <script type="text/javascript">
1.26 www 434: $swinfo
435: window.focus();
1.134 www 436:
437: active=true;
438:
439: function enterrole (thisform,rolecode,buttonname) {
440: if (active) {
441: active=false;
442: document.title='$standby';
443: window.status='$standby';
444: thisform.newrole.value=rolecode;
445: thisform.submit();
446: } else {
447: alert('$standby');
448: }
449: }
1.26 www 450: </script>
1.10 www 451: ENDHEADER
1.6 www 452:
1.2 www 453: # ------------------------------------------ Get Error Message from Environment
454:
1.118 albertel 455: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
456: if ($env{'user.error.msg'}) {
1.55 albertel 457: $r->log_reason(
1.118 albertel 458: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 459: }
1.1 harris41 460:
1.61 www 461: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 462:
1.118 albertel 463: my $advanced=$env{'user.adv'};
1.61 www 464: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 465: my $tryagain=$env{'form.tryagain'};
1.6 www 466:
1.2 www 467: # -------------------------------------------------------- Generate Page Output
1.6 www 468: # --------------------------------------------------------------- Error Header?
1.2 www 469: if ($error) {
1.187 bisitz 470: $r->print("<h1>".&mt('LON-CAPA Access Control')."</h1>");
1.174 albertel 471: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>");
472: if ($priv ne '') {
1.187 bisitz 473: $r->print(&mt('Access : ').&Apache::lonnet::plaintext($priv)."\n");
1.174 albertel 474: }
475: if ($fn ne '') {
1.187 bisitz 476: $r->print(&mt('Resource: ').&Apache::lonenc::check_encrypt($fn)."\n");
1.174 albertel 477: }
478: if ($msg ne '') {
1.187 bisitz 479: $r->print(&mt('Action : ').$msg."\n");
1.174 albertel 480: }
481: $r->print("</pre><hr />");
1.120 albertel 482: my $url=$fn;
483: my $last;
484: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
485: &GDBM_READER(),0640)) {
486: $last=$hash{'last_known'};
487: untie(%hash);
488: }
1.149 www 489: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 490:
491: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
492: &Apache::lonenc::check_encrypt($fn));
1.2 www 493: } else {
1.118 albertel 494: if ($env{'user.error.msg'}) {
1.25 www 495: $r->print(
1.157 albertel 496: '<h3><span class="LC_error">'.
497: &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
1.25 www 498: }
1.2 www 499: }
1.6 www 500: # -------------------------------------------------------- Choice or no choice?
1.2 www 501: if ($nochoose) {
1.177 www 502: $r->print("<h2>".&mt('Sorry ...')."</h2>\n<span class='LC_error'>".
503: &mt('This action is currently not authorized.').'</span>'.
1.150 www 504: &Apache::loncommon::end_page());
505: return OK;
1.6 www 506: } else {
1.18 www 507: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
508: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 509: }
1.84 www 510: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 511: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
512: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 513: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 514: }
1.75 albertel 515: my (%roletext,%sortrole,%roleclass);
1.84 www 516: my $countactive=0;
1.191 raeburn 517: my $countfuture=0;
518: my $countwill=0;
1.84 www 519: my $inrole=0;
520: my $possiblerole='';
1.191 raeburn 521: my %futureroles;
522: my %roles_nextlogin;
1.118 albertel 523: foreach $envkey (sort keys %env) {
1.35 matthew 524: my $button = 1;
1.49 www 525: my $switchserver='';
1.75 albertel 526: my $roletext;
527: my $sortkey;
1.2 www 528: if ($envkey=~/^user\.role\./) {
1.102 raeburn 529: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
530: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 531: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102 raeburn 532: $tremark='';
533: $tpstart=' ';
534: $tpend=' ';
535: $tfont='#000000';
1.4 www 536: if ($tstart) {
1.74 www 537: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 538: }
539: if ($tend) {
1.74 www 540: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 541: }
1.118 albertel 542: if ($env{'request.role'} eq $trolecode) {
1.6 www 543: $tstatus='selected';
544: }
1.4 www 545: my $tbg;
1.164 albertel 546: if (($tstatus eq 'is')
547: || ($tstatus eq 'selected')
548: || ($tstatus eq 'will')
549: || ($tstatus eq 'future')
550: || ($env{'form.showall'})) {
1.35 matthew 551: if ($tstatus eq 'is') {
552: $tbg='#77FF77';
1.47 www 553: $tfont='#003300';
1.84 www 554: $possiblerole=$trolecode;
555: $countactive++;
1.35 matthew 556: } elsif ($tstatus eq 'future') {
557: $tbg='#FFFF77';
1.49 www 558: $button=0;
1.191 raeburn 559: $futureroles{$trolecode} = $tstart.':'.$tend;
560: $countfuture ++;
1.35 matthew 561: } elsif ($tstatus eq 'will') {
562: $tbg='#FFAA77';
1.204 bisitz 563: $tremark.=&mt('Active at next login.').' ';
1.191 raeburn 564: $roles_nextlogin{$trolecode} = $tstart.':'.$tend;
565: $countwill ++;
1.35 matthew 566: } elsif ($tstatus eq 'expired') {
567: $tbg='#FF7777';
1.47 www 568: $tfont='#330000';
1.49 www 569: $button=0;
1.35 matthew 570: } elsif ($tstatus eq 'will_not') {
571: $tbg='#AAFF77';
1.204 bisitz 572: $tremark.=&mt('Expired after logout.').' ';
1.35 matthew 573: } elsif ($tstatus eq 'selected') {
574: $tbg='#11CC55';
1.47 www 575: $tfont='#002200';
1.84 www 576: $inrole=1;
1.86 albertel 577: $countactive++;
1.204 bisitz 578: $tremark.=&mt('Currently selected.').' ';
1.35 matthew 579: }
580: my $trole;
581: if ($role =~ /^cr\//) {
582: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 583: if ($tremark) { $tremark.='<br />'; }
1.204 bisitz 584: $tremark.=&mt('Defined by [_1] at [_2].',$rauthor,$rdomain);
1.159 albertel 585: }
586: $trole=Apache::lonnet::plaintext($role);
1.35 matthew 587: my $ttype;
588: my $twhere;
589: my ($tdom,$trest,$tsection)=
590: split(/\//,Apache::lonnet::declutter($where));
591: # First, Co-Authorship roles
1.125 www 592: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 593: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 594: my $allowed=0;
595: my @ids=&Apache::lonnet::current_machine_ids();
596: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
597: if (!$allowed) {
1.49 www 598: $button=0;
1.130 albertel 599: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 600: }
1.35 matthew 601: #next if ($home eq 'no_host');
1.176 albertel 602: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 603: $ttype='Construction Space';
1.72 www 604: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
605: ': '.$tdom.'<br />'.
606: ' '.&mt('Server').': '.$home;
1.118 albertel 607: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 608: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 609: $sortkey=$role."$trest:$tdom";
1.35 matthew 610: } elsif ($role eq 'au') {
611: # Authors
612: my $home = &Apache::lonnet::homeserver
1.118 albertel 613: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 614: my $allowed=0;
615: my @ids=&Apache::lonnet::current_machine_ids();
616: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
617: if (!$allowed) {
1.49 www 618: $button=0;
1.143 albertel 619: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 620: }
1.35 matthew 621: #next if ($home eq 'no_host');
1.176 albertel 622: $home = &Apache::lonnet::hostname($home);
1.78 sakharuk 623: $ttype='Construction Space';
1.72 www 624: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
625: ': '.$home;
1.118 albertel 626: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
627: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 628: $sortkey=$role;
1.35 matthew 629: } elsif ($trest) {
630: my $tcourseid=$tdom.'_'.$trest;
1.153 raeburn 631: $ttype = &Apache::loncommon::course_type($tcourseid);
632: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.118 albertel 633: if ($env{'course.'.$tcourseid.'.description'}) {
634: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 635: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 636: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 637: $twhere.=' <font size="-2">'.
1.72 www 638: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 639: '</font>';
1.55 albertel 640: }
1.8 www 641: } else {
1.105 raeburn 642: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 643: if (%newhash) {
1.80 albertel 644: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 645: "\0".$envkey;
1.49 www 646: $twhere=$newhash{'description'}.
647: ' <font size="-2">'.
1.72 www 648: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 649: '</font>';
1.152 raeburn 650: $ttype = $newhash{'type'};
1.153 raeburn 651: $trole = &Apache::lonnet::plaintext($role,$ttype);
1.35 matthew 652: } else {
1.72 www 653: $twhere=&mt('Currently not available');
1.118 albertel 654: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 655: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.152 raeburn 656: $ttype = 'Unavailable';
1.35 matthew 657: }
1.8 www 658: }
1.121 albertel 659: if ($tsection) {
1.175 albertel 660: $twhere.='<br />'.&mt('Section').': '.$tsection;
1.121 albertel 661: }
1.72 www 662: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 663: } elsif ($tdom) {
1.78 sakharuk 664: $ttype='Domain';
1.35 matthew 665: $twhere=$tdom;
1.75 albertel 666: $sortkey=$role.$twhere;
1.35 matthew 667: } else {
1.78 sakharuk 668: $ttype='System';
1.72 www 669: $twhere=&mt('system wide');
1.75 albertel 670: $sortkey=$role.$twhere;
1.13 www 671: }
1.152 raeburn 672: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 673: $roletext{$envkey}=$roletext;
674: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
675: $sortrole{$sortkey}=$envkey;
676: $roleclass{$envkey}=$ttype;
1.55 albertel 677: }
1.4 www 678: }
1.75 albertel 679: }
1.196 raeburn 680: if ($env{'user.adv'}) {
681: $r->print(
682: '<br /><span class="LC_rolesinfo"><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
683: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
684: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" /></span>');
685: } else {
686: if ($countactive > 0) {
687: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 688: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
689: $r->print('<p>'.&mt('[_1]Visit the [_2]Course Catalog[_3] to view all [_4] LON-CAPA courses.','<b>','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a></b>',$domdesc).'<br />'.&mt('If a course is [_1]not[_2] in your list of current courses below, you may be able to enroll if self-enrollment is permitted.','<b>','</b>').'</p>');
1.196 raeburn 690: }
691: }
692:
1.84 www 693: # No active roles
694: if ($countactive==0) {
695: if ($inrole) {
696: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
697: } else {
698: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
699: }
1.191 raeburn 700: &findcourse_advice($r);
701: $r->print('</form>');
702: if ($countfuture) {
703: $r->print(&mt('The following [quant,_1,role,roles] will become active in the future:',$countfuture));
704: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,
705: $nochoose);
706: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,
707: \%roletext);
708: my $tremark='';
709: my $tfont='#003300';
710: if ($env{'request.role'} eq 'cm') {
711: $r->print('<tr bgcolor="#11CC55">');
1.204 bisitz 712: $tremark=&mt('Currently selected.').' ';
1.191 raeburn 713: $tfont='#002200';
714: } else {
715: $r->print('<tr bgcolor="#77FF77">');
716: }
717: $r->print('<td></td><td colspan="3"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.&mt('No role specified').
1.192 raeburn 718: '</span></font></td><td><font color="'.$tfont.'">'.$tremark.
1.191 raeburn 719: ' </font></td></tr>'."\n");
720:
721: $r->print('</table>');
722: }
723: $r->print(&Apache::loncommon::end_page());
1.84 www 724: return OK;
725: # Is there only one choice?
1.202 raeburn 726: } elsif ($countactive==1) {
727: my $needs_switchserver;
728: if ($env{'user.author'}) {
729: $needs_switchserver = &check_needs_switchserver($possiblerole);
730: }
731: if ((!$needs_switchserver) && ($env{'request.role'} eq 'cm')) {
732: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
733: '<input type="hidden" name="'.$possiblerole.'" value="1" />'.
1.179 raeburn 734: '<noscript><br /><input type="submit" name="submit" value="'.&mt('Continue').'" /></noscript>');
1.202 raeburn 735: $r->print("</form>\n");
736: $r->rflush();
737: $r->print('<script type="text/javascript">document.forms.rolechoice.submit();</script>');
738: $r->print(&Apache::loncommon::end_page());
739: return OK;
740: }
741: if ($needs_switchserver) {
742: $r->print("<h2>".&mt('Server Switch Required')."</h2>\n".
743: &mt('Construction Space access is only available from '.
744: 'the home server of the corresponding Author.').'<br />'.
745: &mt("Click the 'Switch Server' link to go there.").'<br />');
746: }
1.84 www 747: }
748: # More than one possible role
749: # ----------------------------------------------------------------------- Table
1.202 raeburn 750: unless ((!&Apache::lonmenu::show_course()) || ($nochoose) || ($countactive==1)) {
1.173 albertel 751: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.84 www 752: }
1.191 raeburn 753: my $doheaders = &roletable_headers($r,\%roleclass,\%sortrole,$nochoose);
1.118 albertel 754: if ($env{'environment.recentroles'}) {
1.111 albertel 755: my %recent_roles =
1.118 albertel 756: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 757: my $output='';
758: foreach (sort(keys(%recent_roles))) {
759: if (defined($roletext{'user.role.'.$_})) {
760: $output.=$roletext{'user.role.'.$_};
1.170 albertel 761: if ($_ =~ m-dc\./($match_domain)/-
762: && $dcroles{$1}) {
1.192 raeburn 763: $output .= &adhoc_roles_row($1,'recent');
1.133 albertel 764: }
1.113 raeburn 765: } elsif ($numdc > 0) {
766: unless ($_ =~/^error\:/) {
767: $output.=&display_cc_role('user.role.'.$_);
768: }
769: }
1.111 albertel 770: }
771: if ($output) {
1.132 albertel 772: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.192 raeburn 773: &mt('Recent Roles')."</font></td></tr>");
1.111 albertel 774: $r->print($output);
1.114 raeburn 775: $doheaders ++;
1.111 albertel 776: }
777: }
778:
1.104 raeburn 779: if ($numdc > 0) {
1.112 raeburn 780: $r->print(&coursepick_jscript());
1.193 raeburn 781: $r->print(&Apache::loncommon::coursebrowser_javascript().
782: &Apache::loncommon::authorbrowser_javascript());
1.108 raeburn 783: }
1.191 raeburn 784: &print_rolerows($r,$doheaders,\%roleclass,\%sortrole,\%dcroles,\%roletext);
1.202 raeburn 785: if ($countactive > 1) {
786: my $tremark='';
787: my $tfont='#003300';
788: if ($env{'request.role'} eq 'cm') {
789: $r->print('<tr bgcolor="#11CC55">');
1.204 bisitz 790: $tremark=&mt('Currently selected.').' ';
1.202 raeburn 791: $tfont='#002200';
792: } else {
793: $r->print('<tr bgcolor="#77FF77">');
794: }
795: unless ($nochoose) {
796: if ($env{'request.role'} ne 'cm') {
797: $r->print('<td><input type="submit" value="'.
798: &mt('Select').'" name="cm" /></td>');
799: } else {
800: $r->print('<td> </td>');
801: }
802: }
803: $r->print('<td colspan="3"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.&mt('No role specified').
804: '</span></font></td><td><font color="'.$tfont.'">'.$tremark.
805: ' </font></td></tr>'."\n");
806: }
1.4 www 807: $r->print('</table>');
808: unless ($nochoose) {
809: $r->print("</form>\n");
810: }
1.22 harris41 811: # ------------------------------------------------------------ Privileges Info
1.118 albertel 812: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 813: $r->print('<hr /><h2>Current Privileges</h2>');
1.175 albertel 814: $r->print(&privileges_info());
1.4 www 815: }
1.66 www 816: $r->print(&Apache::lonnet::getannounce());
1.65 www 817: if ($advanced) {
1.201 raeburn 818: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.195 bisitz 819: $r->print('<p><small><i>'
820: .&mt('This is LON-CAPA [_1]',$r->dir_config('lonVersion'))
821: .'</i><br />'
1.197 raeburn 822: .'<a href="/adm/logout">'.&mt('Logout').'</a> '
1.201 raeburn 823: .'<a href="/adm/coursecatalog?showdom='.$esc_dom.'">'
824: .&mt('Course Catalog')
1.197 raeburn 825: .'</small></p>');
1.65 www 826: }
1.147 albertel 827: $r->print(&Apache::loncommon::end_page());
1.1 harris41 828: return OK;
1.102 raeburn 829: }
830:
1.191 raeburn 831: sub roletable_headers {
832: my ($r,$roleclass,$sortrole,$nochoose) = @_;
833: my $doheaders;
834: if ((ref($sortrole) eq 'HASH') && (ref($roleclass) eq 'HASH')) {
835: $r->print('<br /><table id="LC_rolesmenu"><tr>');
836: if (!$nochoose) { $r->print('<th> </th>'); }
837: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent')
838: .'</th><th>'.&mt('Start').'</th><th>'.&mt('End')
839: .'</th></tr>'."\n");
840: $doheaders=-1;
841: my @roletypes = &roletypes();
842: foreach my $type (@roletypes) {
843: my $haverole=0;
844: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
845: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
846: $haverole=1;
847: }
848: }
849: if ($haverole) { $doheaders++; }
850: }
851: }
852: return $doheaders;
853: }
854:
855: sub roletypes {
856: my @types = ('Domain','Construction Space','Course','Unavailable','System');
857: return @types;
858: }
859:
860: sub print_rolerows {
861: my ($r,$doheaders,$roleclass,$sortrole,$dcroles,$roletext) = @_;
862: if ((ref($roleclass) eq 'HASH') && (ref($sortrole) eq 'HASH')) {
863: my @types = &roletypes();
864: foreach my $type (@types) {
865: my $output;
866: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%{$sortrole}))) {
867: if ($roleclass->{$sortrole->{$which}} =~ /^\Q$type\E/) {
868: if (ref($roletext) eq 'HASH') {
869: $output.=$roletext->{$sortrole->{$which}};
870: if ($sortrole->{$which} =~ m-dc\./($match_domain)/-) {
871: if (ref($dcroles) eq 'HASH') {
872: if ($dcroles->{$1}) {
1.192 raeburn 873: $output .= &adhoc_roles_row($1,'');
1.191 raeburn 874: }
875: }
876: }
877: }
878: }
879: }
880: if ($output) {
881: if ($doheaders > 0) {
882: $r->print("<tr>".
883: "<td align='center' colspan='5'><font face='arial'>".
884: &mt($type)."</font></td></tr>");
885: }
886: $r->print($output);
887: }
888: }
889: }
890: }
891:
892: sub findcourse_advice {
893: my ($r) = @_;
894: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
1.201 raeburn 895: my $esc_dom = &HTML::Entities::encode($env{'user.domain'},'"<>&');
1.200 raeburn 896: if (&Apache::lonnet::auto_run(undef,$env{'user.domain'})) {
1.191 raeburn 897: $r->print(&mt('If you were expecting to see an active role listed for a particular course in the [_1] domain, it may be missing for one of the following reasons:',$domdesc).'
898: <ul>
899: <li>'.&mt('The course has yet to be created.').'</li>
900: <li>'.&mt('Automatic enrollment of registered students has not been enabled for the course.').'</li>
901: <li>'.&mt('You are in a section of course for which automatic enrollment in the corresponding LON-CAPA course is not active.').'</li>
902: <li>'.&mt('The start date for automated enrollment has yet to be reached.').'</li>
903: <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>
904: </ul>');
905: } else {
906: $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 />');
907: }
1.201 raeburn 908: $r->print('<p>'.&mt('The [_1]Course Catalog[_2] provides information about all [_3] classes for which LON-CAPA courses have been created.','<a href="/adm/coursecatalog?showdom='.$esc_dom.'">','</a>',$domdesc).'<br />');
1.191 raeburn 909: $r->print(&mt('You can search the course catalog for courses which permit self-enrollment, if you would like to enroll in a course.').'</p>');
910: return;
911: }
912:
1.175 albertel 913: sub privileges_info {
914: my ($which) = @_;
915: my $output;
916:
917: $which ||= $env{'request.role'};
918:
919: foreach my $envkey (sort(keys(%env))) {
920: next if ($envkey!~/^user\.priv\.\Q$which\E\.(.*)/);
921:
922: my $where=$1;
923: my $ttype;
924: my $twhere;
925: my (undef,$tdom,$trest,$tsec)=split(m{/},$where);
926: if ($trest) {
927: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
928: $ttype='Construction Space';
929: $twhere='User: '.$trest.', Domain: '.$tdom;
930: } else {
931: $ttype= &Apache::loncommon::course_type($tdom.'_'.$trest);
932: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
933: if ($tsec) {
934: my $sec_type = 'Section';
935: if (exists($env{"user.role.gr.$where"})) {
936: $sec_type = 'Group';
937: }
938: $twhere.=' ('.$sec_type.': '.$tsec.')';
939: }
940: }
941: } elsif ($tdom) {
942: $ttype='Domain';
943: $twhere=$tdom;
944: } else {
945: $ttype='System';
946: $twhere='/';
947: }
1.204 bisitz 948: $output .= "\n<h3>".&mt($ttype).': '.$twhere.'</h3>'."\n<ul>";
1.175 albertel 949: foreach my $priv (sort(split(/:/,$env{$envkey}))) {
950: next if (!$priv);
951:
952: my ($prv,$restr)=split(/\&/,$priv);
953: my $trestr='';
954: if ($restr ne 'F') {
955: $trestr.=' ('.
956: join(', ',
957: map { &Apache::lonnet::plaintext($_) }
958: (split('',$restr))).') ';
959: }
960: $output .= "\n\t".
961: '<li>'.&Apache::lonnet::plaintext($prv).$trestr.'</li>';
962: }
963: $output .= "\n".'</ul>';
964: }
965: return $output;
966: }
967:
1.102 raeburn 968: sub role_status {
969: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
970: my @pwhere = ();
1.118 albertel 971: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 972: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
973: unless (!defined($$role) || $$role eq '') {
974: $$where=join('.',@pwhere);
975: $$trolecode=$$role.'.'.$$where;
1.118 albertel 976: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 977: $$tstatus='is';
1.105 raeburn 978: if ($$tstart && $$tstart>$then) {
979: $$tstatus='future';
980: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 981: }
982: if ($$tend) {
983: if ($$tend<$then) {
984: $$tstatus='expired';
1.103 raeburn 985: } elsif ($$tend<$now) {
1.104 raeburn 986: $$tstatus='will_not';
1.102 raeburn 987: }
988: }
989: }
990: }
991: }
1.1 harris41 992:
1.110 raeburn 993: sub build_roletext {
1.152 raeburn 994: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
1.177 www 995: my $roletext='<tr bgcolor="'.$tbg.'" class="LC_rolesmenu_'.$tstatus.'">';
1.132 albertel 996: my $is_dc=($trolecode =~ m/^dc\./);
997: my $rowspan=($is_dc) ? ''
998: : ' rowspan="2" ';
999:
1.110 raeburn 1000: unless ($nochoose) {
1.134 www 1001: my $buttonname=$trolecode;
1002: $buttonname=~s/\W//g;
1.110 raeburn 1003: if (!$button) {
1004: if ($switchserver) {
1.177 www 1005: $roletext.='<td'.$rowspan.'><span class="LC_rolesinfo"><a href="/adm/switchserver?'.
1006: $switchserver.'">'.&mt('Switch Server').'</a></span></td>';
1.110 raeburn 1007: } else {
1.164 albertel 1008: $roletext.=('<td'.$rowspan.'> </td>');
1.110 raeburn 1009: }
1010: } elsif ($tstatus eq 'is') {
1.134 www 1011: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1012: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1013: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1014: } elsif ($tryagain) {
1015: $roletext.=
1.134 www 1016: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1017: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1018: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1019: } elsif ($advanced) {
1020: $roletext.=
1.134 www 1021: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
1022: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
1.192 raeburn 1023: $trolecode."','".$buttonname.'\');" /></td>';
1.110 raeburn 1024: } else {
1.132 albertel 1025: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 1026: }
1027: }
1.165 albertel 1028: if ($trolecode !~ m/^(dc|ca|au|aa)\./) {
1029: $tremark.=&Apache::lonannounce::showday(time,1,
1030: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
1031: }
1.110 raeburn 1032: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 1033: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 1034: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
1035: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 1036: '</font></td></tr>';
1037: if (!$is_dc) {
1.177 www 1038: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'"><span class="LC_rolesinfo">'.$tremark.
1039: '</span> </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
1.132 albertel 1040: }
1.110 raeburn 1041: return $roletext;
1042: }
1043:
1.202 raeburn 1044: sub check_needs_switchserver {
1045: my ($possiblerole) = @_;
1046: my $needs_switchserver;
1047: my ($role,$where) = split(/\./,$possiblerole,2);
1048: my (undef,$tdom,$twho) = split(/\//,$where);
1049: my ($server_status,$home);
1050: if (($role eq 'ca') || ($role eq 'aa')) {
1051: ($server_status,$home) = &check_author_homeserver($twho,$tdom);
1052: } else {
1053: ($server_status,$home) = &check_author_homeserver($env{'user.name'},
1054: $env{'user.domain'});
1055: }
1056: if ($server_status eq 'switchserver') {
1057: $needs_switchserver = 1;
1058: }
1059: return $needs_switchserver;
1060: }
1061:
1.193 raeburn 1062: sub check_author_homeserver {
1.183 www 1063: my ($uname,$udom)=@_;
1.193 raeburn 1064: if (($uname eq '') || ($udom eq '')) {
1065: return ('fail','');
1066: }
1.183 www 1067: my $home = &Apache::lonnet::homeserver($uname,$udom);
1.193 raeburn 1068: if (&Apache::lonnet::host_domain($home) ne $udom) {
1069: return ('fail',$home);
1070: }
1.183 www 1071: my @ids=&Apache::lonnet::current_machine_ids();
1.193 raeburn 1072: if (grep(/^\Q$home\E$/,@ids)) {
1073: return ('ok',$home);
1074: } else {
1075: return ('switchserver',$home);
1.183 www 1076: }
1077: }
1078:
1.110 raeburn 1079: sub check_privs {
1.182 www 1080: my ($cdom,$cnum,$then,$now,$checkrole) = @_;
1081: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.118 albertel 1082: if ($env{$cckey}) {
1.110 raeburn 1083: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
1084: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1085: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.182 www 1086: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 1087: }
1088: } else {
1.182 www 1089: &set_privileges($cdom,$cnum,$checkrole);
1.110 raeburn 1090: }
1091: }
1092:
1.104 raeburn 1093: sub check_fordc {
1094: my ($dcroles,$then) = @_;
1095: my $numdc = 0;
1.118 albertel 1096: if ($env{'user.adv'}) {
1097: foreach my $envkey (sort keys %env) {
1.170 albertel 1098: if ($envkey=~/^user\.role\.dc\.\/($match_domain)\/$/) {
1.104 raeburn 1099: my $dcdom = $1;
1100: my $livedc = 1;
1.118 albertel 1101: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 1102: if ($tstart && $tstart>$then) { $livedc = 0; }
1103: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 1104: if ($livedc) {
1105: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 1106: $numdc++;
1.104 raeburn 1107: }
1108: }
1109: }
1110: }
1111: return $numdc;
1112: }
1113:
1.185 raeburn 1114: sub adhoc_course_role {
1115: my ($then) = @_;
1116: my ($cdom,$cnum);
1.201 raeburn 1117: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1118: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.185 raeburn 1119: if (&check_forcc($cdom,$cnum,$then)) {
1120: my $setprivs;
1.198 raeburn 1121: if (!defined($env{'user.role.'.$env{'form.switchrole'}})) {
1.185 raeburn 1122: $setprivs = 1;
1123: } else {
1.198 raeburn 1124: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.switchrole'}});
1.185 raeburn 1125: if (($start && ($start>$then || $start == -1)) ||
1126: ($end && $end<$then)) {
1127: $setprivs = 1;
1128: }
1129: }
1130: if ($setprivs) {
1.198 raeburn 1131: if ($env{'form.switchrole'} =~ m-^(in|ta|ep|ad|st|cr)([\w/]*)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
1.185 raeburn 1132: my $role = $1;
1133: my $custom_role = $2;
1134: my $usec = $3;
1135: if ($role eq 'cr') {
1.199 raeburn 1136: if ($custom_role =~ m-^/$match_domain/$match_username/\w+$-) {
1.185 raeburn 1137: $role .= $custom_role;
1138: } else {
1139: return;
1140: }
1141: }
1142: my (%userroles,%newrole,%newgroups);
1143: my $area = '/'.$cdom.'/'.$cnum;
1144: my $spec = $role.'.'.$area;
1145: if ($usec ne '') {
1146: $spec .= '/'.$usec;
1147: $area .= '/'.$usec;
1148: }
1149: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,$area);
1150: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,%newgroups);
1151: my $adhocstart = $then-1;
1152: $userroles{'user.role.'.$spec} = $adhocstart.'.';
1.186 raeburn 1153: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.185 raeburn 1154: }
1155: }
1156: }
1157: return;
1158: }
1159:
1160: sub check_forcc {
1161: my ($cdom,$cnum,$then) = @_;
1162: my $is_cc;
1163: if ($cdom ne '' && $cnum ne '') {
1164: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1165: my $envkey = 'user.role.cc./'.$cdom.'/'.$cnum;
1166: if (defined($env{$envkey})) {
1167: $is_cc = 1;
1168: my ($tstart,$tend)=split(/\./,$env{$envkey});
1169: if ($tstart && $tstart>$then) { $is_cc = 0; }
1170: if ($tend && $tend <$then) { $is_cc = 0; }
1171: }
1172: }
1173: }
1174: return $is_cc;
1175: }
1176:
1.108 raeburn 1177: sub courselink {
1.193 raeburn 1178: my ($dcdom,$rowtype) = @_;
1.109 raeburn 1179: my $courseform=&Apache::loncommon::selectcourse_link
1.152 raeburn 1180: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
1181: 'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
1.173 albertel 1182: $dcdom,$dcdom,undef);
1.138 raeburn 1183: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1184: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
1185: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
1186: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 1187: return $courseform.$hiddenitems;
1.109 raeburn 1188: }
1189:
1190: sub coursepick_jscript {
1.184 raeburn 1191: my %lt = &Apache::lonlocal::texthash(
1192: plsu => "Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.",
1193: youc => 'You can only use this screen to select courses in the current domain.',
1194: );
1.104 raeburn 1195: my $verify_script = <<"END";
1.179 raeburn 1196: <script type="text/javascript">
1.108 raeburn 1197: function verifyCoursePick(caller) {
1198: var numbutton = getIndex(caller)
1.112 raeburn 1199: var pickedCourse = document.rolechoice.elements[numbutton+4].value
1200: var pickedDomain = document.rolechoice.elements[numbutton+2].value
1201: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 1202: if (pickedCourse != '') {
1.108 raeburn 1203: if (numbutton != -1) {
1204: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1205: document.rolechoice.elements[numbutton+1].name = courseTarget
1206: document.rolechoice.submit()
1207: }
1.104 raeburn 1208: }
1209: else {
1.184 raeburn 1210: alert("$lt{'plsu'}");
1.104 raeburn 1211: }
1212: }
1213: else {
1.184 raeburn 1214: alert("$lt{'youc'}")
1.104 raeburn 1215: }
1216: }
1.109 raeburn 1217: function getIndex(caller) {
1.108 raeburn 1218: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 1219: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 1220: return i;
1221: }
1222: }
1223: return -1;
1224: }
1.104 raeburn 1225: </script>
1226: END
1.109 raeburn 1227: return $verify_script;
1.104 raeburn 1228: }
1229:
1.193 raeburn 1230: sub coauthorlink {
1231: my ($dcdom,$rowtype) = @_;
1232: my $coauthorform=&Apache::loncommon::selectauthor_link('rolechoice',$dcdom);
1233: my $hiddenitems = '<input type="hidden" name="adhoccauname'.$rowtype.'_'.$dcdom.'" value="" />';
1234: return $coauthorform.$hiddenitems;
1235: }
1236:
1.113 raeburn 1237: sub display_cc_role {
1238: my $rolekey = shift;
1239: my $roletext;
1.118 albertel 1240: my $advanced = $env{'user.adv'};
1241: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 1242: unless ($rolekey =~/^error\:/) {
1.171 albertel 1243: if ($rolekey =~ m-^user\.role.cc\./($match_domain)/($match_courseid)$-) {
1.113 raeburn 1244: my $tcourseid = $1.'_'.$2;
1245: my $trolecode = 'cc./'.$1.'/'.$2;
1246: my $twhere;
1.152 raeburn 1247: my $ttype;
1.113 raeburn 1248: my $tbg='#77FF77';
1249: my $tfont='#003300';
1250: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1251: if (%newhash) {
1252: $twhere=$newhash{'description'}.
1253: ' <font size="-2">'.
1254: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
1255: '</font>';
1.153 raeburn 1256: $ttype = $newhash{'type'};
1.113 raeburn 1257: } else {
1258: $twhere=&mt('Currently not available');
1.118 albertel 1259: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 1260: }
1.153 raeburn 1261: my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113 raeburn 1262: $twhere.="<br />".&mt('Domain').":".$1;
1.152 raeburn 1263: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,$twhere,'','','',1,'');
1.104 raeburn 1264: }
1265: }
1.152 raeburn 1266: return ($roletext);
1.104 raeburn 1267: }
1268:
1.192 raeburn 1269: sub adhoc_roles_row {
1.138 raeburn 1270: my ($dcdom,$rowtype) = @_;
1.132 albertel 1271: my $output = '<tr bgcolor="#77FF77">'.
1.192 raeburn 1272: ' <td colspan="5"><table><tr><td><span class="LC_rolesinfo">'
1273: .&mt('[_1]Ad hoc[_2] roles in domain [_3] --',
1274: '<span class="LC_cusr_emph">','</span>',$dcdom).'</span></td><td>';
1.193 raeburn 1275: my $selectcclink = &courselink($dcdom,$rowtype);
1.173 albertel 1276: my $ccrole = &Apache::lonnet::plaintext('cc');
1.182 www 1277: my $carole = &Apache::lonnet::plaintext('ca');
1.193 raeburn 1278: my $selectcalink = &coauthorlink($dcdom,$rowtype);
1.182 www 1279: $output.= '<span class="LC_rolesinfo">'.
1.193 raeburn 1280: &mt('[_1]: [_2]',$ccrole,$selectcclink).
1.192 raeburn 1281: '</span><br /></td><td> </td><td><span class="LC_rolesinfo">'.
1.193 raeburn 1282: &mt('[_1]: [_2]',$carole,$selectcalink).
1.192 raeburn 1283: '</span><br /></td></tr></table></td></tr>'.
1284: '<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 1285: return $output;
1286: }
1287:
1.104 raeburn 1288: sub recent_filename {
1289: my $area=shift;
1.149 www 1290: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1291: }
1292:
1.106 raeburn 1293: sub set_privileges {
1.182 www 1294: # role can be cc or ca
1295: my ($dcdom,$pickedcourse,$role) = @_;
1.106 raeburn 1296: my $area = '/'.$dcdom.'/'.$pickedcourse;
1297: my $spec = $role.'.'.$area;
1.168 albertel 1298: my %userroles = &Apache::lonnet::set_arearole($role,$area,'','',
1299: $env{'user.domain'},
1300: $env{'user.name'});
1.106 raeburn 1301: my %ccrole = ();
1302: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.154 albertel 1303: my ($author,$adv)= &Apache::lonnet::set_userprivs(\%userroles,\%ccrole);
1.186 raeburn 1304: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
1.184 raeburn 1305:
1.118 albertel 1306: &Apache::lonnet::log($env{'user.domain'},
1307: $env{'user.name'},
1308: $env{'user.home'},
1.106 raeburn 1309: "Role ".$role);
1310: &Apache::lonnet::appenv(
1.186 raeburn 1311: {'request.role' => $spec,
1.106 raeburn 1312: 'request.role.domain' => $dcdom,
1.186 raeburn 1313: 'request.course.sec' => ''});
1.106 raeburn 1314: my $tadv=0;
1315: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1.186 raeburn 1316: &Apache::lonnet::appenv({'request.role.adv' => $tadv});
1.106 raeburn 1317: }
1318:
1.139 raeburn 1319: sub courseloadpage {
1320: my ($courseid) = @_;
1321: my $startpage;
1.144 albertel 1322: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1323: [$courseid.':courseinit']);
1.139 raeburn 1324: my ($tmp) = %entry_settings;
1.144 albertel 1325: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1326: $startpage = $entry_settings{$courseid.':courseinit'};
1327: }
1328: if ($startpage eq '') {
1329: if (exists($env{'environment.course_init_display'})) {
1330: $startpage = $env{'environment.course_init_display'};
1331: }
1332: }
1333: return $startpage;
1334: }
1335:
1.1 harris41 1336: 1;
1337: __END__
1.32 harris41 1338:
1339: =head1 NAME
1340:
1341: Apache::lonroles - User Roles Screen
1342:
1343: =head1 SYNOPSIS
1344:
1345: Invoked by /etc/httpd/conf/srm.conf:
1346:
1347: <Location /adm/roles>
1348: PerlAccessHandler Apache::lonacc
1349: SetHandler perl-script
1350: PerlHandler Apache::lonroles
1351: ErrorDocument 403 /adm/login
1352: ErrorDocument 500 /adm/errorhandler
1353: </Location>
1.64 bowersj2 1354:
1355: =head1 OVERVIEW
1356:
1357: =head2 Choosing Roles
1358:
1359: C<lonroles> is a handler that allows a user to switch roles in
1360: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1361: default role that a user has before selecting a role, as widely as
1362: possible, but certain handlers for example need specification which
1363: course they should act on, etc. Both in this scenario, and when the
1364: handler determines via C<lonnet>'s C<&allowed> function that a certain
1365: action is not allowed, C<lonroles> is used as error handler. This
1366: allows the user to select another role which may have permission to do
1367: what they were trying to do. C<lonroles> can also be accessed via the
1368: B<CRS> button in the Remote Control.
1369:
1370: =begin latex
1371:
1372: \begin{figure}
1373: \begin{center}
1374: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1375: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1376: \end{center}
1377: \end{figure}
1378:
1379: =end latex
1380:
1381: =head2 Role Initialization
1382:
1383: 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 1384:
1385: =head1 INTRODUCTION
1386:
1387: This module enables a user to select what role he wishes to
1388: operate under (instructor, student, teaching assistant, course
1389: coordinator, etc). These roles are pre-established by the actions
1390: of upper-level users.
1391:
1392: This is part of the LearningOnline Network with CAPA project
1393: described at http://www.lon-capa.org.
1394:
1395: =head1 HANDLER SUBROUTINE
1396:
1397: This routine is called by Apache and mod_perl.
1398:
1399: =over 4
1400:
1401: =item *
1402:
1403: Roles Initialization (yes/no)
1404:
1405: =item *
1406:
1407: Get Error Message from Environment
1408:
1409: =item *
1410:
1411: Who is this?
1412:
1413: =item *
1414:
1415: Generate Page Output
1416:
1417: =item *
1418:
1419: Choice or no choice
1420:
1421: =item *
1422:
1423: Table
1424:
1425: =item *
1426:
1427: Privileges
1428:
1429: =back
1430:
1431: =cut
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