Annotation of loncom/auth/lonroles.pm, revision 1.151
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.151 ! www 4: # $Id: lonroles.pm,v 1.150 2006/05/30 17:15:00 www 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();
1.120 albertel 43: use GDBM_File;
1.149 www 44: use LONCAPA;
45:
1.1 harris41 46:
1.62 matthew 47: sub redirect_user {
1.95 albertel 48: my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62 matthew 49: $msg = $title if (! defined($msg));
1.73 www 50: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 51: &Apache::loncommon::no_cache($r);
52: $r->send_http_header;
53: my $swinfo=&Apache::lonmenu::rawconfig();
1.96 albertel 54: my $navwindow;
1.95 albertel 55: if ($launch_nav eq 'on') {
1.128 albertel 56: $navwindow.=&Apache::lonnavmaps::launch_win('now',undef,undef,
1.140 raeburn 57: ($url =~ m-^/adm/whatsnew-));
1.96 albertel 58: } else {
59: $navwindow.=&Apache::lonnavmaps::close();
1.95 albertel 60: }
1.147 albertel 61: my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
62: {'redirect' => [1,$url],});
63: my $end_page = &Apache::loncommon::end_page();
64:
1.92 www 65: # Note to style police:
66: # This must only replace the spaces, nothing else, or it bombs elsewhere.
67: $url=~s/ /\%20/g;
1.93 albertel 68: $r->print(<<ENDREDIR);
1.147 albertel 69: $start_page
1.96 albertel 70: <script type="text/javascript">
1.62 matthew 71: $swinfo
72: </script>
1.96 albertel 73: $navwindow
1.62 matthew 74: <h1>$msg</h1>
1.147 albertel 75: $end_page
1.62 matthew 76: ENDREDIR
77: return;
78: }
79:
1.150 www 80: sub error_page {
81: my ($r,$error,$dest)=@_;
82: &Apache::loncommon::content_type($r,'text/html');
83: &Apache::loncommon::no_cache($r);
84: $r->send_http_header;
85: return OK if $r->header_only;
86: $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
87: '<script type="text/javascript">'.
88: &Apache::lonmenu::rawconfig().'</script>'.
89: '<p>'.&mt('The following problems occurred:').
90: $error.
91: '</p><br /><a href="'.$dest.'>'.&mt('Continue').'</a>'.
92: &Apache::loncommon::end_page());
93: }
94:
1.1 harris41 95: sub handler {
1.10 www 96:
1.1 harris41 97: my $r = shift;
98:
1.6 www 99: my $now=time;
1.118 albertel 100: my $then=$env{'user.login.time'};
1.6 www 101: my $envkey;
1.107 raeburn 102: my %dcroles = ();
103: my $numdc = &check_fordc(\%dcroles,$then);
1.148 albertel 104: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10 www 105:
1.6 www 106: # ================================================================== Roles Init
1.118 albertel 107: if ($env{'form.selectrole'}) {
1.134 www 108: if ($env{'form.newrole'}) {
109: $env{'form.'.$env{'form.newrole'}}=1;
110: }
1.118 albertel 111: if ($env{'request.course.id'}) {
112: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 113: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 114: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 115: }
1.55 albertel 116: &Apache::lonnet::appenv("request.course.id" => '',
117: "request.course.fn" => '',
118: "request.course.uri" => '',
119: "request.course.sec" => '',
120: "request.role" => 'cm',
1.118 albertel 121: "request.role.adv" => $env{'user.adv'},
122: "request.role.domain" => $env{'user.domain'});
1.106 raeburn 123:
1.110 raeburn 124: # Check if user is a DC trying to enter a course and needs privs to be created
1.107 raeburn 125: if ($numdc > 0) {
1.118 albertel 126: foreach my $envkey (keys %env) {
1.146 raeburn 127: if (my ($domain,$coursenum) =
128: ($envkey =~ m-^form\.cc\./(\w+)/(\w+)$-)) {
129: if ($dcroles{$domain}) {
130: &check_privs($domain,$coursenum,$then,$now);
1.107 raeburn 131: }
132: last;
133: }
134: }
135: }
136:
1.118 albertel 137: foreach $envkey (keys %env) {
1.40 matthew 138: next if ($envkey!~/^user\.role\./);
1.102 raeburn 139: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
140: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 141: if ($env{'form.'.$trolecode}) {
1.55 albertel 142: if ($tstatus eq 'is') {
143: $where=~s/^\///;
144: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 raeburn 145: # check for course groups
146: my %coursegroups = &Apache::lonnet::get_active_groups(
147: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
148: my $cgrps = join(':',keys(%coursegroups));
149:
1.111 albertel 150: # store role if recent_role list being kept
1.118 albertel 151: if ($env{'environment.recentroles'}) {
1.111 albertel 152: &Apache::lonhtmlcommon::store_recent('roles',
153: $trolecode,' ');
154: }
155:
156:
1.53 www 157: # check for keyed access
1.55 albertel 158: if (($role eq 'st') &&
1.118 albertel 159: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 160: # who is key authority?
161: my $authdom=$cdom;
162: my $authnum=$cnum;
1.118 albertel 163: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 164: ($authnum,$authdom)=
1.118 albertel 165: split(/\W/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 166: }
167: # check with key authority
168: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 169: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 170: $authdom,$authnum)) {
1.53 www 171: # there is no valid key
1.118 albertel 172: if ($env{'form.newkey'}) {
1.53 www 173: # student attempts to register a new key
1.89 www 174: &Apache::loncommon::content_type($r,'text/html');
175: &Apache::loncommon::no_cache($r);
176: $r->send_http_header;
177: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 178: my $start_page=&Apache::loncommon::start_page
1.89 www 179: ('Verifying Access Key to Unlock this Course');
1.147 albertel 180: my $end_page=&Apache::loncommon::end_page();
1.90 www 181: my $buttontext=&mt('Enter Course');
182: my $message=&mt('Successfully registered key');
183: my $assignresult=
184: &Apache::lonnet::assign_access_key(
1.118 albertel 185: $env{'form.newkey'},
1.90 www 186: $authdom,$authnum,
1.91 www 187: $cdom,$cnum,
1.118 albertel 188: $env{'user.domain'},
189: $env{'user.name'},
1.90 www 190: 'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
191: $trolecode);
192: unless ($assignresult eq 'ok') {
193: $assignresult=~s/^error\:\s*//;
194: $message=&mt($assignresult).
195: '<br /><a href="/adm/logout">'.
1.89 www 196: &mt('Logout').'</a>';
1.90 www 197: $buttontext=&mt('Re-Enter Key');
198: }
1.89 www 199: $r->print(<<ENDENTEREDKEY);
1.147 albertel 200: $start_page
1.89 www 201: <script>
202: $swinfo
203: </script>
204: <form method="post">
205: <input type="hidden" name="selectrole" value="1" />
206: <input type="hidden" name="$trolecode" value="1" />
1.90 www 207: <font size="+2">$message</font><br />
1.89 www 208: <input type="submit" value="$buttontext" />
209: </form>
1.147 albertel 210: $end_page
1.89 www 211: ENDENTEREDKEY
212: return OK;
1.55 albertel 213: } else {
1.53 www 214: # print form to enter a new key
1.73 www 215: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 216: &Apache::loncommon::no_cache($r);
217: $r->send_http_header;
218: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 219: my $start_page=&Apache::loncommon::start_page
1.55 albertel 220: ('Enter Access Key to Unlock this Course');
1.147 albertel 221: my $end_page=&Apache::loncommon::end_page();
1.55 albertel 222: $r->print(<<ENDENTERKEY);
1.147 albertel 223: $start_page
1.53 www 224: <script>
225: $swinfo
226: </script>
227: <form method="post">
1.89 www 228: <input type="hidden" name="selectrole" value="1" />
229: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 230: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 231: <input type="submit" value="Enter key" />
232: </form>
1.147 albertel 233: $end_page
1.53 www 234: ENDENTERKEY
1.55 albertel 235: return OK;
236: }
237: }
238: }
1.118 albertel 239: &Apache::lonnet::log($env{'user.domain'},
240: $env{'user.name'},
241: $env{'user.home'},
1.87 www 242: "Role ".$trolecode);
1.101 albertel 243:
1.56 www 244: &Apache::lonnet::appenv(
1.101 albertel 245: 'request.role' => $trolecode,
1.56 www 246: 'request.role.domain' => $cdom,
1.137 raeburn 247: 'request.course.sec' => $csec,
248: 'request.course.groups' => $cgrps);
1.101 albertel 249: my $tadv=0;
1.72 www 250: my $msg=&mt('Entering course ...');
1.62 matthew 251:
1.125 www 252: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.55 albertel 253: my ($furl,$ferr)=
254: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 255: if (($env{'form.orgurl'}) &&
256: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
257: my $dest=$env{'form.orgurl'};
1.117 albertel 258: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
259: &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.150 www 260: if (($ferr) && ($tadv)) {
261: &error_page($r,$ferr,$dest);
262: } else {
263: $r->internal_redirect($dest);
264: }
1.55 albertel 265: return OK;
266: } else {
1.118 albertel 267: unless ($env{'request.course.id'}) {
1.55 albertel 268: &Apache::lonnet::appenv(
269: "request.course.id" => $cdom.'_'.$cnum);
1.61 www 270: $furl='/adm/roles?tryagain=1';
1.55 albertel 271: $msg=
1.131 albertel 272: '<h1><font color="red">'.
1.72 www 273: &mt('Could not initialize course at this time.').
274: '</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 275: }
1.117 albertel 276: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
277: &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.150 www 278: if (($ferr) && ($tadv)) {
279: &error_page($r,$ferr,$furl);
280: } else {
281: # Check to see if the user is a CC entering a course
282: # for the first time
283: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
284: if (substr($courseid, 0, 1) eq '/') {
285: $courseid = substr($courseid, 1);
286: }
287: $courseid =~ s/\//_/;
288: if ($role eq 'cc' && $env{'course.' . $courseid .
289: '.course.helper.not.run'}) {
290: $furl = "/adm/helper/course.initialization.helper";
291: # Send the user to the course they selected
292: } elsif ($env{'request.course.id'}) {
293: if (&Apache::lonnet::allowed('whn',
294: $env{'request.course.id'})
295: || &Apache::lonnet::allowed('whn',
296: $env{'request.course.id'}.'/'
297: .$env{'request.course.sec'})
298: ) {
299: my $startpage = &courseloadpage($courseid);
300: unless ($startpage eq 'firstres') {
301: $msg = &mt('Entering course ....');
302: &redirect_user($r,&mt('New in course'),
303: '/adm/whatsnew?refpage=start',$msg,
304: $env{'environment.remotenavmap'});
305: return OK;
306: }
307: }
308: }
1.151 ! www 309: # Are we allowed to look at the first resource?
! 310: if (!&Apache::lonnet::allowed('bre',$furl)) {
! 311: # Guess not ...
! 312: $furl=&Apache::lonpageflip::first_accessible_resource();
! 313: }
1.150 www 314: &redirect_user($r,&mt('Entering Course'),
315: $furl,$msg,
316: $env{'environment.remotenavmap'});
1.58 bowersj2 317: }
1.124 albertel 318: return OK;
1.55 albertel 319: }
320: }
1.62 matthew 321: #
322: # Send the user to the construction space they selected
1.125 www 323: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 324: my $redirect_url = '/priv/';
325: if ($role eq 'au') {
1.118 albertel 326: $redirect_url.=$env{'user.name'};
1.62 matthew 327: } else {
328: $where =~ /\/(.*)$/;
329: $redirect_url .= $1;
330: }
331: $redirect_url .= '/';
1.78 sakharuk 332: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 333: $redirect_url);
334: return OK;
335: }
1.104 raeburn 336: if ($role eq 'dc') {
1.108 raeburn 337: my $redirect_url = '/adm/menu/';
338: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 339: $redirect_url);
1.108 raeburn 340: return OK;
1.104 raeburn 341: }
1.55 albertel 342: }
343: }
1.6 www 344: }
1.40 matthew 345: }
1.44 www 346:
1.10 www 347:
1.6 www 348: # =============================================================== No Roles Init
1.10 www 349:
1.73 www 350: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 351: &Apache::loncommon::no_cache($r);
1.10 www 352: $r->send_http_header;
353: return OK if $r->header_only;
354:
1.52 www 355: my $swinfo=&Apache::lonmenu::rawconfig();
1.147 albertel 356: my $start_page=&Apache::loncommon::start_page('User Roles');
1.134 www 357: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 358: $standby=~s/\n/\\n/g;
1.94 albertel 359: my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_menu('','General Intro','General_Intro','User Roles',1,undef,undef,undef,undef,,&mt("Click here for help")).'</td></td></tr></table>';
1.10 www 360: $r->print(<<ENDHEADER);
1.147 albertel 361: $start_page
1.45 www 362: $helptag<br />
1.26 www 363: <script>
364: $swinfo
365: window.focus();
1.134 www 366:
367: active=true;
368:
369: function enterrole (thisform,rolecode,buttonname) {
370: if (active) {
371: active=false;
372: document.title='$standby';
373: window.status='$standby';
374: thisform.newrole.value=rolecode;
375: thisform.submit();
376: } else {
377: alert('$standby');
378: }
379: }
1.26 www 380: </script>
1.10 www 381: ENDHEADER
1.6 www 382:
1.2 www 383: # ------------------------------------------ Get Error Message from Environment
384:
1.118 albertel 385: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
386: if ($env{'user.error.msg'}) {
1.55 albertel 387: $r->log_reason(
1.118 albertel 388: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 389: }
1.1 harris41 390:
1.61 www 391: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 392:
1.118 albertel 393: my $advanced=$env{'user.adv'};
1.61 www 394: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 395: my $tryagain=$env{'form.tryagain'};
1.6 www 396:
1.2 www 397: # -------------------------------------------------------- Generate Page Output
1.6 www 398: # --------------------------------------------------------------- Error Header?
1.2 www 399: if ($error) {
400: $r->print("<h1>LON-CAPA Access Control</h1>");
1.126 www 401: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>Access : ".
1.4 www 402: Apache::lonnet::plaintext($priv)."\n");
1.115 albertel 403: $r->print("Resource: ".&Apache::lonenc::check_encrypt($fn)."\n");
1.120 albertel 404: $r->print("Action : $msg\n</pre><hr />");
405: my $url=$fn;
406: my $last;
407: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
408: &GDBM_READER(),0640)) {
409: $last=$hash{'last_known'};
410: untie(%hash);
411: }
1.149 www 412: if ($last) { $fn.='?symb='.&escape($last); }
1.120 albertel 413:
414: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
415: &Apache::lonenc::check_encrypt($fn));
1.2 www 416: } else {
1.118 albertel 417: if ($env{'user.error.msg'}) {
1.25 www 418: $r->print(
1.131 albertel 419: '<h3><font color="red">'.
1.72 www 420: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 421: }
1.2 www 422: }
1.6 www 423: # -------------------------------------------------------- Choice or no choice?
1.2 www 424: if ($nochoose) {
1.150 www 425: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
426: &mt('This action is currently not authorized.').
427: &Apache::loncommon::end_page());
428: return OK;
1.6 www 429: } else {
430: if ($advanced) {
1.72 www 431: $r->print(&mt("Your home server is ").
1.55 albertel 432: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
1.118 albertel 433: ($env{'user.name'},$env{'user.domain'})}.
1.55 albertel 434: "<br />\n");
1.72 www 435: $r->print(&mt(
1.126 www 436: "Author and Co-Author roles are not available on servers other than their respective home servers."));
1.17 www 437: }
1.18 www 438: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
439: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 440: }
1.84 www 441: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 442: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
443: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 444: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 445: }
1.118 albertel 446: if ($env{'user.adv'}) {
1.63 www 447: $r->print(
1.116 albertel 448: '<br /><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.118 albertel 449: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.116 albertel 450: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" />');
1.63 www 451: }
1.4 www 452:
1.75 albertel 453: my (%roletext,%sortrole,%roleclass);
1.84 www 454: my $countactive=0;
455: my $inrole=0;
456: my $possiblerole='';
1.118 albertel 457: foreach $envkey (sort keys %env) {
1.35 matthew 458: my $button = 1;
1.49 www 459: my $switchserver='';
1.75 albertel 460: my $roletext;
461: my $sortkey;
1.2 www 462: if ($envkey=~/^user\.role\./) {
1.102 raeburn 463: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
464: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 465: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102 raeburn 466: $tremark='';
467: $tpstart=' ';
468: $tpend=' ';
469: $tfont='#000000';
1.4 www 470: if ($tstart) {
1.74 www 471: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 472: }
473: if ($tend) {
1.74 www 474: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 475: }
1.118 albertel 476: if ($env{'request.role'} eq $trolecode) {
1.6 www 477: $tstatus='selected';
478: }
1.4 www 479: my $tbg;
1.35 matthew 480: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
1.118 albertel 481: ($env{'form.showall'})) {
1.35 matthew 482: if ($tstatus eq 'is') {
483: $tbg='#77FF77';
1.47 www 484: $tfont='#003300';
1.84 www 485: $possiblerole=$trolecode;
486: $countactive++;
1.35 matthew 487: } elsif ($tstatus eq 'future') {
488: $tbg='#FFFF77';
1.49 www 489: $button=0;
1.35 matthew 490: } elsif ($tstatus eq 'will') {
491: $tbg='#FFAA77';
1.72 www 492: $tremark.=&mt('Active at next login. ');
1.35 matthew 493: } elsif ($tstatus eq 'expired') {
494: $tbg='#FF7777';
1.47 www 495: $tfont='#330000';
1.49 www 496: $button=0;
1.35 matthew 497: } elsif ($tstatus eq 'will_not') {
498: $tbg='#AAFF77';
1.72 www 499: $tremark.=&mt('Expired after logout. ');
1.35 matthew 500: } elsif ($tstatus eq 'selected') {
501: $tbg='#11CC55';
1.47 www 502: $tfont='#002200';
1.84 www 503: $inrole=1;
1.86 albertel 504: $countactive++;
1.72 www 505: $tremark.=&mt('Currently selected. ');
1.35 matthew 506: }
507: my $trole;
508: if ($role =~ /^cr\//) {
509: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 510: if ($tremark) { $tremark.='<br />'; }
511: $tremark.=&mt('Defined by ').$rauthor.
1.72 www 512: &mt(' at ').$rdomain.'.';
1.35 matthew 513: $trole=$rrole;
1.8 www 514: } else {
1.35 matthew 515: $trole=Apache::lonnet::plaintext($role);
516: }
517: my $ttype;
518: my $twhere;
519: my ($tdom,$trest,$tsection)=
520: split(/\//,Apache::lonnet::declutter($where));
521: # First, Co-Authorship roles
1.125 www 522: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 523: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 524: my $allowed=0;
525: my @ids=&Apache::lonnet::current_machine_ids();
526: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
527: if (!$allowed) {
1.49 www 528: $button=0;
1.130 albertel 529: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 530: }
1.35 matthew 531: #next if ($home eq 'no_host');
532: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 533: $ttype='Construction Space';
1.72 www 534: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
535: ': '.$tdom.'<br />'.
536: ' '.&mt('Server').': '.$home;
1.118 albertel 537: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 538: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 539: $sortkey=$role."$trest:$tdom";
1.35 matthew 540: } elsif ($role eq 'au') {
541: # Authors
542: my $home = &Apache::lonnet::homeserver
1.118 albertel 543: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 544: my $allowed=0;
545: my @ids=&Apache::lonnet::current_machine_ids();
546: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
547: if (!$allowed) {
1.49 www 548: $button=0;
1.143 albertel 549: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 550: }
1.35 matthew 551: #next if ($home eq 'no_host');
552: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 553: $ttype='Construction Space';
1.72 www 554: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
555: ': '.$home;
1.118 albertel 556: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
557: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 558: $sortkey=$role;
1.35 matthew 559: } elsif ($trest) {
1.78 sakharuk 560: $ttype='Course';
1.35 matthew 561: my $tcourseid=$tdom.'_'.$trest;
1.118 albertel 562: if ($env{'course.'.$tcourseid.'.description'}) {
563: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 564: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 565: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 566: $twhere.=' <font size="-2">'.
1.72 www 567: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 568: '</font>';
1.55 albertel 569: }
1.8 www 570: } else {
1.105 raeburn 571: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 572: if (%newhash) {
1.80 albertel 573: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 574: "\0".$envkey;
1.49 www 575: $twhere=$newhash{'description'}.
576: ' <font size="-2">'.
1.72 www 577: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 578: '</font>';
1.35 matthew 579: } else {
1.72 www 580: $twhere=&mt('Currently not available');
1.118 albertel 581: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 582: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 583: }
1.8 www 584: }
1.121 albertel 585: if ($tsection) {
586: $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
587: }
588:
1.72 www 589: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 590: } elsif ($tdom) {
1.78 sakharuk 591: $ttype='Domain';
1.35 matthew 592: $twhere=$tdom;
1.75 albertel 593: $sortkey=$role.$twhere;
1.35 matthew 594: } else {
1.78 sakharuk 595: $ttype='System';
1.72 www 596: $twhere=&mt('system wide');
1.75 albertel 597: $sortkey=$role.$twhere;
1.13 www 598: }
1.35 matthew 599:
1.127 albertel 600: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 601: $roletext{$envkey}=$roletext;
602: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
603: $sortrole{$sortkey}=$envkey;
604: $roleclass{$envkey}=$ttype;
1.55 albertel 605: }
1.4 www 606: }
1.75 albertel 607: }
1.84 www 608: # No active roles
609: if ($countactive==0) {
610: if ($inrole) {
611: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
612: } else {
613: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
614: }
1.147 albertel 615: $r->print('</form>'.&Apache::loncommon::end_page());
1.84 www 616: return OK;
617: # Is there only one choice?
1.118 albertel 618: } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84 www 619: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
620: '<input type="hidden" name="'.$possiblerole.'" value="1" />');
621: $r->print("</form>\n");
622: $r->rflush();
623: $r->print('<script>document.forms.rolechoice.submit();</script>');
1.147 albertel 624: $r->print(&Apache::loncommon::end_page());
1.84 www 625: return OK;
626: }
627: # More than one possible role
628: # ----------------------------------------------------------------------- Table
629: unless (($advanced) || ($nochoose)) {
630: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
631: }
632: $r->print('<br /><table><tr>');
633: unless ($nochoose) { $r->print('<th> </th>'); }
1.121 albertel 634: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132 albertel 635: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76 albertel 636: my $doheaders=-1;
1.129 albertel 637: foreach my $type ('Domain','Construction Space','Course','System') {
1.76 albertel 638: my $haverole=0;
1.75 albertel 639: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
640: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 641: $haverole=1;
1.75 albertel 642: }
1.76 albertel 643: }
644: if ($haverole) { $doheaders++; }
645: }
1.111 albertel 646:
1.118 albertel 647: if ($env{'environment.recentroles'}) {
1.111 albertel 648: my %recent_roles =
1.118 albertel 649: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 650: my $output='';
651: foreach (sort(keys(%recent_roles))) {
652: if (defined($roletext{'user.role.'.$_})) {
653: $output.=$roletext{'user.role.'.$_};
1.133 albertel 654: if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
1.138 raeburn 655: $output .= &allcourses_row($1,'recent');
1.133 albertel 656: }
1.113 raeburn 657: } elsif ($numdc > 0) {
658: unless ($_ =~/^error\:/) {
659: $output.=&display_cc_role('user.role.'.$_);
660: }
661: }
1.111 albertel 662: }
663: if ($output) {
1.132 albertel 664: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126 www 665: &mt('Recent Roles')."</font></td>");
1.111 albertel 666: $r->print($output);
667: $r->print("</tr>");
1.114 raeburn 668: $doheaders ++;
1.111 albertel 669: }
670: }
671:
1.104 raeburn 672: if ($numdc > 0) {
1.112 raeburn 673: $r->print(&coursepick_jscript());
674: $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108 raeburn 675: }
1.132 albertel 676: foreach my $type ('Construction Space','Domain','Course','System') {
1.108 raeburn 677: my $output;
678: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
679: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
680: $output.=$roletext{$sortrole{$which}};
681: if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
682: if ($dcroles{$1}) {
1.138 raeburn 683: $output .= &allcourses_row($1,'');
1.104 raeburn 684: }
685: }
1.76 albertel 686: }
1.108 raeburn 687: }
688: if ($output) {
689: if ($doheaders > 0) {
1.126 www 690: $r->print("<tr>".
1.132 albertel 691: "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76 albertel 692: }
1.108 raeburn 693: $r->print($output);
694: }
1.4 www 695: }
1.14 www 696: my $tremark='';
1.47 www 697: my $tfont='#003300';
1.118 albertel 698: if ($env{'request.role'} eq 'cm') {
1.19 www 699: $r->print('<tr bgcolor="#11CC55">');
1.72 www 700: $tremark=&mt('Currently selected. ');
1.47 www 701: $tfont='#002200';
1.14 www 702: } else {
703: $r->print('<tr bgcolor="#77FF77">');
704: }
705: unless ($nochoose) {
1.118 albertel 706: if ($env{'request.role'} ne 'cm') {
1.134 www 707: $r->print('<td><input type="submit" value="'.
1.72 www 708: &mt('Select').'" name="cm"></td>');
1.55 albertel 709: } else {
710: $r->print('<td> </td>');
711: }
1.14 www 712: }
1.132 albertel 713: $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 714: '</font></td><td><font color="'.$tfont.'">'.$tremark.
715: ' </font></td></tr>'."\n");
1.4 www 716:
717: $r->print('</table>');
718: unless ($nochoose) {
719: $r->print("</form>\n");
720: }
1.22 harris41 721: # ------------------------------------------------------------ Privileges Info
1.118 albertel 722: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 723: $r->print('<hr /><h2>Current Privileges</h2>');
1.4 www 724:
1.118 albertel 725: foreach $envkey (sort keys %env) {
726: if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
1.55 albertel 727: my $where=$envkey;
1.118 albertel 728: $where=~s/^user\.priv\.$env{'request.role'}\.//;
1.55 albertel 729: my $ttype;
730: my $twhere;
731: my ($tdom,$trest,$tsec)=
732: split(/\//,Apache::lonnet::declutter($where));
733: if ($trest) {
1.118 albertel 734: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1.55 albertel 735: $ttype='Construction Space';
736: $twhere='User: '.$trest.', Domain: '.$tdom;
737: } else {
738: $ttype='Course';
1.118 albertel 739: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1.55 albertel 740: if ($tsec) {
741: $twhere.=' (Section/Group: '.$tsec.')';
742: }
743: }
744: } elsif ($tdom) {
745: $ttype='Domain';
746: $twhere=$tdom;
747: } else {
748: $ttype='System';
749: $twhere='/';
750: }
751: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
1.118 albertel 752: foreach (sort split(/:/,$env{$envkey})) {
1.55 albertel 753: if ($_) {
754: my ($prv,$restr)=split(/\&/,$_);
755: my $trestr='';
756: if ($restr ne 'F') {
757: my $i;
758: $trestr.=' (';
759: for ($i=0;$i<length($restr);$i++) {
760: $trestr.=
761: Apache::lonnet::plaintext(substr($restr,$i,1));
762: if ($i<length($restr)-1) { $trestr.=', '; }
763: }
764: $trestr.=')';
765: }
766: $r->print('<li>'.
767: Apache::lonnet::plaintext($prv).$trestr.
768: '</li>');
769: }
770: }
771: $r->print('</ul>');
772: }
773: }
1.4 www 774: }
1.66 www 775: $r->print(&Apache::lonnet::getannounce());
1.65 www 776: if ($advanced) {
777: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 778: $r->dir_config('lonVersion').'</i><br />'.
779: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 780: }
1.147 albertel 781: $r->print(&Apache::loncommon::end_page());
1.1 harris41 782: return OK;
1.102 raeburn 783: }
784:
785: sub role_status {
786: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
787: my @pwhere = ();
1.118 albertel 788: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 789: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
790: unless (!defined($$role) || $$role eq '') {
791: $$where=join('.',@pwhere);
792: $$trolecode=$$role.'.'.$$where;
1.118 albertel 793: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 794: $$tstatus='is';
1.105 raeburn 795: if ($$tstart && $$tstart>$then) {
796: $$tstatus='future';
797: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 798: }
799: if ($$tend) {
800: if ($$tend<$then) {
801: $$tstatus='expired';
1.103 raeburn 802: } elsif ($$tend<$now) {
1.104 raeburn 803: $$tstatus='will_not';
1.102 raeburn 804: }
805: }
806: }
807: }
808: }
1.1 harris41 809:
1.110 raeburn 810: sub build_roletext {
1.127 albertel 811: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
812: my $roletext='<tr bgcolor="'.$tbg.'">';
1.132 albertel 813: my $is_dc=($trolecode =~ m/^dc\./);
814: my $rowspan=($is_dc) ? ''
815: : ' rowspan="2" ';
816:
1.110 raeburn 817: unless ($nochoose) {
1.134 www 818: my $buttonname=$trolecode;
819: $buttonname=~s/\W//g;
1.110 raeburn 820: if (!$button) {
821: if ($switchserver) {
1.132 albertel 822: $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
1.110 raeburn 823: $switchserver.'">'.&mt('Switch Server').'</a></td>';
824: } else {
825: $roletext.=('<td> </td>');
826: }
827: } elsif ($tstatus eq 'is') {
1.134 www 828: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
829: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
830: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 831: } elsif ($tryagain) {
832: $roletext.=
1.134 www 833: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
834: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
835: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 836: } elsif ($advanced) {
837: $roletext.=
1.134 www 838: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
839: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
840: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 841: } else {
1.132 albertel 842: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 843: }
844: }
845: $tremark.=&Apache::lonannounce::showday(time,1,
846: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
847:
848: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 849: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 850: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
851: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 852: '</font></td></tr>';
853: if (!$is_dc) {
854: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
855: ' </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
856: }
1.110 raeburn 857: return $roletext;
858: }
859:
860: sub check_privs {
1.146 raeburn 861: my ($cdom,$cnum,$then,$now) = @_;
862: my $cckey = 'user.role.cc./'.$cdom.'/'.$cnum;
1.118 albertel 863: if ($env{$cckey}) {
1.110 raeburn 864: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
865: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
866: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.146 raeburn 867: &set_privileges($cdom,$cnum);
1.110 raeburn 868: }
869: } else {
1.146 raeburn 870: &set_privileges($cdom,$cnum);
1.110 raeburn 871: }
872: }
873:
1.104 raeburn 874: sub check_fordc {
875: my ($dcroles,$then) = @_;
876: my $numdc = 0;
1.118 albertel 877: if ($env{'user.adv'}) {
878: foreach my $envkey (sort keys %env) {
1.104 raeburn 879: if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
880: my $dcdom = $1;
881: my $livedc = 1;
1.118 albertel 882: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 883: if ($tstart && $tstart>$then) { $livedc = 0; }
884: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 885: if ($livedc) {
886: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 887: $numdc++;
1.104 raeburn 888: }
889: }
890: }
891: }
892: return $numdc;
893: }
894:
1.108 raeburn 895: sub courselink {
1.138 raeburn 896: my ($dcdom,$rowtype) = @_;
1.109 raeburn 897: my $courseform=&Apache::loncommon::selectcourse_link
1.138 raeburn 898: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.$dcdom,$dcdom);
899: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
900: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
901: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
902: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 903: return $courseform.$hiddenitems;
1.109 raeburn 904: }
905:
906: sub coursepick_jscript {
1.104 raeburn 907: my $verify_script = <<"END";
908: <script>
1.108 raeburn 909: function verifyCoursePick(caller) {
910: var numbutton = getIndex(caller)
1.112 raeburn 911: var pickedCourse = document.rolechoice.elements[numbutton+4].value
912: var pickedDomain = document.rolechoice.elements[numbutton+2].value
913: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 914: if (pickedCourse != '') {
1.108 raeburn 915: if (numbutton != -1) {
916: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
917: document.rolechoice.elements[numbutton+1].name = courseTarget
918: document.rolechoice.submit()
919: }
1.104 raeburn 920: }
921: else {
1.114 raeburn 922: alert("Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.");
1.104 raeburn 923: }
924: }
925: else {
926: alert("You can only use this screen to select courses in the current domain")
927: }
928: }
1.109 raeburn 929: function getIndex(caller) {
1.108 raeburn 930: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 931: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 932: return i;
933: }
934: }
935: return -1;
936: }
1.104 raeburn 937: </script>
938: END
1.109 raeburn 939: return $verify_script;
1.104 raeburn 940: }
941:
1.109 raeburn 942: sub processpick {
943: my $process_pick = <<"END";
944: <script>
945: function process_pick(dom) {
1.138 raeburn 946: var pickedCourse=opener.document.rolechoice.$env{'form.cnumelement'}.value;
947: var pickedDomain=opener.document.rolechoice.$env{'form.cdomelement'}.value;
948: var okDomain = 0;
949:
950: if (pickedDomain == dom) {
1.109 raeburn 951: if (pickedCourse != '') {
1.138 raeburn 952: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
953: opener.document.title='Role selected. Please stand by.';
954: opener.status='Role selected. Please stand by.';
955: opener.document.rolechoice.newrole.value=courseTarget
956: opener.document.rolechoice.submit()
1.109 raeburn 957: }
1.138 raeburn 958: } else {
959: alert("You may only use this screen to select courses in the current domain: "+dom+"\\nPlease return to the roles page window and click the 'Select Course' link for domain: "+pickedDomain+",\\n if you are a Domain Coordinator in that domain, and wish to become a Course Coordinator in a course in the domain");
1.109 raeburn 960: }
961: }
962:
963: </script>
964: END
965: return $process_pick;
966: }
1.108 raeburn 967:
1.113 raeburn 968: sub display_cc_role {
969: my $rolekey = shift;
970: my $roletext;
1.118 albertel 971: my $advanced = $env{'user.adv'};
972: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 973: unless ($rolekey =~/^error\:/) {
974: if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
975: my $tcourseid = $1.'_'.$2;
976: my $trolecode = 'cc./'.$1.'/'.$2;
977: my $trole = Apache::lonnet::plaintext('cc');
978: my $twhere;
979: my $tbg='#77FF77';
980: my $tfont='#003300';
981: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
982: if (%newhash) {
983: $twhere=$newhash{'description'}.
984: ' <font size="-2">'.
985: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
986: '</font>';
987: } else {
988: $twhere=&mt('Currently not available');
1.118 albertel 989: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 990: }
1.113 raeburn 991: $twhere.="<br />".&mt('Domain').":".$1;
1.127 albertel 992: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,&mt('Course'),$twhere,'','','',1,'');
1.104 raeburn 993: }
994: }
1.113 raeburn 995: return $roletext;
1.104 raeburn 996: }
997:
1.108 raeburn 998: sub allcourses_row {
1.138 raeburn 999: my ($dcdom,$rowtype) = @_;
1.108 raeburn 1000: my $ccrole = Apache::lonnet::plaintext('cc');
1.138 raeburn 1001: my $selectlink = &courselink($dcdom,$rowtype);
1.132 albertel 1002: my $output = '<tr bgcolor="#77FF77">'.
1003: '<td colspan="5">'.
1004: '<font color="#002200">'.$ccrole.'</font>'.
1005: ' <b>'.$selectlink.'</b>'.
1006: ' from '.&mt('Domain').' '.$dcdom.
1007: '<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 1008: return $output;
1009: }
1010:
1.104 raeburn 1011: sub recent_filename {
1012: my $area=shift;
1.149 www 1013: return 'nohist_recent_'.&escape($area);
1.104 raeburn 1014: }
1015:
1.106 raeburn 1016: sub set_privileges {
1017: my ($dcdom,$pickedcourse) = @_;
1018: my $area = '/'.$dcdom.'/'.$pickedcourse;
1019: my $role = 'cc';
1020: my $spec = $role.'.'.$area;
1.118 albertel 1021: my $userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
1.106 raeburn 1022: my %ccrole = ();
1023: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.107 raeburn 1024: my ($author,$adv)= &Apache::lonnet::set_userprivs(\$userroles,\%ccrole);
1025: my @newprivs = split/\n/,$userroles;
1.106 raeburn 1026: my %newccroles = ();
1027: foreach (@newprivs) {
1028: my ($key,$val) = split/=/,$_;
1029: $newccroles{$key} = $val;
1030: }
1031: &Apache::lonnet::appenv(%newccroles);
1.118 albertel 1032: &Apache::lonnet::log($env{'user.domain'},
1033: $env{'user.name'},
1034: $env{'user.home'},
1.106 raeburn 1035: "Role ".$role);
1036: &Apache::lonnet::appenv(
1.146 raeburn 1037: 'request.role' => $spec,
1.106 raeburn 1038: 'request.role.domain' => $dcdom,
1039: 'request.course.sec' => '');
1040: my $tadv=0;
1041: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1042: &Apache::lonnet::appenv('request.role.adv' => $tadv);
1043: }
1044:
1.139 raeburn 1045: sub courseloadpage {
1046: my ($courseid) = @_;
1047: my $startpage;
1.144 albertel 1048: my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
1049: [$courseid.':courseinit']);
1.139 raeburn 1050: my ($tmp) = %entry_settings;
1.144 albertel 1051: unless ($tmp =~ /^error: 2 /) {
1.139 raeburn 1052: $startpage = $entry_settings{$courseid.':courseinit'};
1053: }
1054: if ($startpage eq '') {
1055: if (exists($env{'environment.course_init_display'})) {
1056: $startpage = $env{'environment.course_init_display'};
1057: }
1058: }
1059: return $startpage;
1060: }
1061:
1.1 harris41 1062: 1;
1063: __END__
1.32 harris41 1064:
1065: =head1 NAME
1066:
1067: Apache::lonroles - User Roles Screen
1068:
1069: =head1 SYNOPSIS
1070:
1071: Invoked by /etc/httpd/conf/srm.conf:
1072:
1073: <Location /adm/roles>
1074: PerlAccessHandler Apache::lonacc
1075: SetHandler perl-script
1076: PerlHandler Apache::lonroles
1077: ErrorDocument 403 /adm/login
1078: ErrorDocument 500 /adm/errorhandler
1079: </Location>
1.64 bowersj2 1080:
1081: =head1 OVERVIEW
1082:
1083: =head2 Choosing Roles
1084:
1085: C<lonroles> is a handler that allows a user to switch roles in
1086: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1087: default role that a user has before selecting a role, as widely as
1088: possible, but certain handlers for example need specification which
1089: course they should act on, etc. Both in this scenario, and when the
1090: handler determines via C<lonnet>'s C<&allowed> function that a certain
1091: action is not allowed, C<lonroles> is used as error handler. This
1092: allows the user to select another role which may have permission to do
1093: what they were trying to do. C<lonroles> can also be accessed via the
1094: B<CRS> button in the Remote Control.
1095:
1096: =begin latex
1097:
1098: \begin{figure}
1099: \begin{center}
1100: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1101: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1102: \end{center}
1103: \end{figure}
1104:
1105: =end latex
1106:
1107: =head2 Role Initialization
1108:
1109: 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 1110:
1111: =head1 INTRODUCTION
1112:
1113: This module enables a user to select what role he wishes to
1114: operate under (instructor, student, teaching assistant, course
1115: coordinator, etc). These roles are pre-established by the actions
1116: of upper-level users.
1117:
1118: This is part of the LearningOnline Network with CAPA project
1119: described at http://www.lon-capa.org.
1120:
1121: =head1 HANDLER SUBROUTINE
1122:
1123: This routine is called by Apache and mod_perl.
1124:
1125: =over 4
1126:
1127: =item *
1128:
1129: Roles Initialization (yes/no)
1130:
1131: =item *
1132:
1133: Get Error Message from Environment
1134:
1135: =item *
1136:
1137: Who is this?
1138:
1139: =item *
1140:
1141: Generate Page Output
1142:
1143: =item *
1144:
1145: Choice or no choice
1146:
1147: =item *
1148:
1149: Table
1150:
1151: =item *
1152:
1153: Privileges
1154:
1155: =back
1156:
1157: =cut
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