Annotation of loncom/auth/lonroles.pm, revision 1.83
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.83 ! albertel 4: # $Id: lonroles.pm,v 1.82 2004/01/15 20:22:47 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: #
1.1 harris41 28: # (Directory Indexer
29: # (Login Screen
1.32 harris41 30: # YEAR=1999
1.1 harris41 31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
32: # 11/23 Gerd Kortemeyer)
1.32 harris41 33: # YEAR=2000
1.7 www 34: # 1/14,03/06,06/01,07/22,07/24,07/25,
1.19 www 35: # 09/04,09/06,09/28,09/29,09/30,10/2,10/5,10/26,10/28,
1.20 www 36: # 12/08,12/28,
1.32 harris41 37: # YEAR=2001
1.20 www 38: # 01/15/01 Gerd Kortemeyer
1.28 www 39: # 03/02,05/03,05/25,05/30,06/01,07/06,08/06 Gerd Kortemeyer
1.33 www 40: # 12/29 Gerd Kortemeyer
1.32 harris41 41: #
42: ###
1.22 harris41 43:
1.1 harris41 44: package Apache::lonroles;
45:
46: use strict;
47: use Apache::lonnet();
1.7 www 48: use Apache::lonuserstate();
1.1 harris41 49: use Apache::Constants qw(:common);
1.2 www 50: use Apache::File();
1.26 www 51: use Apache::lonmenu;
1.29 albertel 52: use Apache::loncommon;
1.57 www 53: use Apache::lonannounce;
1.72 www 54: use Apache::lonlocal;
1.1 harris41 55:
1.62 matthew 56: sub redirect_user {
57: my ($r,$title,$url,$msg) = @_;
58: $msg = $title if (! defined($msg));
1.73 www 59: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 60: &Apache::loncommon::no_cache($r);
61: $r->send_http_header;
62: my $swinfo=&Apache::lonmenu::rawconfig();
63: my $bodytag=&Apache::loncommon::bodytag('Switching Role');
64: $r->print (<<ENDREDIR);
65: <head><title>$title</title>
66: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$url">
67: </head>
68: <html>
69: $bodytag
70: <script>
71: $swinfo
72: </script>
73: <h1>$msg</h1>
74: </body>
75: </html>
76: ENDREDIR
77: return;
78: }
79:
1.1 harris41 80: sub handler {
1.10 www 81:
1.1 harris41 82: my $r = shift;
83:
1.6 www 84: my $now=time;
85: my $then=$ENV{'user.login.time'};
86: my $envkey;
87:
1.10 www 88:
1.6 www 89: # ================================================================== Roles Init
90:
91: if ($ENV{'form.selectrole'}) {
1.33 www 92: if ($ENV{'request.course.id'}) {
93: my %temp=('logout_'.$ENV{'request.course.id'} => time);
94: &Apache::lonnet::put('email_status',\%temp);
95: }
1.55 albertel 96: &Apache::lonnet::appenv("request.course.id" => '',
97: "request.course.fn" => '',
98: "request.course.uri" => '',
99: "request.course.sec" => '',
100: "request.role" => 'cm',
1.56 www 101: "request.role.adv" => $ENV{'user.adv'},
1.55 albertel 102: "request.role.domain" => $ENV{'user.domain'});
1.13 www 103: foreach $envkey (keys %ENV) {
1.40 matthew 104: next if ($envkey!~/^user\.role\./);
105: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.6 www 106: my $where=join('.',@pwhere);
107: my $trolecode=$role.'.'.$where;
108: if ($ENV{'form.'.$trolecode}) {
1.55 albertel 109: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
110: my $tstatus='is';
111: if ($tstart) {
112: if ($tstart>$then) {
113: $tstatus='future';
114: }
115: }
116: if ($tend) {
117: if ($tend<$then) { $tstatus='expired'; }
118: if ($tend<$now) { $tstatus='will_not'; }
119: }
120: if ($tstatus eq 'is') {
121: $where=~s/^\///;
122: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.53 www 123: # check for keyed access
1.55 albertel 124: if (($role eq 'st') &&
125: ($ENV{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
126: unless (&Apache::lonnet::validate_access_key(
127: $ENV{'environment.key.'.$cdom.'_'.$cnum},
128: $cdom,$cnum)) {
1.53 www 129: # there is no valid key
1.55 albertel 130: if ($ENV{'form.newkey'}) {
1.53 www 131: # student attempts to register a new key
1.55 albertel 132: } else {
1.53 www 133: # print form to enter a new key
1.73 www 134: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 135: &Apache::loncommon::no_cache($r);
136: $r->send_http_header;
137: my $swinfo=&Apache::lonmenu::rawconfig();
138: my $bodytag=&Apache::loncommon::bodytag
139: ('Enter Access Key to Unlock this Course');
140: $r->print(<<ENDENTERKEY);
1.53 www 141: <head><title>Entering Course Access Key</title>
142: </head>
143: <html>
144: $bodytag
145: <script>
146: $swinfo
147: </script>
148: <form method="post">
149: <input type="hidden" name="selectrole" value="$ENV{'form.selectrole'}" />
150: <input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" />
151: <input type="submit" value="Enter key" />
152: </form>
153: </body></html>
154: ENDENTERKEY
1.55 albertel 155: return OK;
156: }
157: }
158: }
1.56 www 159: my $tadv=0;
160: if (($trolecode!~/^st/) &&
161: ($trolecode!~/^ta/) &&
162: ($trolecode!~/^cm/)) { $tadv=1; }
163: &Apache::lonnet::appenv(
164: 'request.role' => $trolecode,
165: 'request.role.adv' => $tadv,
166: 'request.role.domain' => $cdom,
167: 'request.course.sec' => $csec);
1.72 www 168: my $msg=&mt('Entering course ...');
1.62 matthew 169:
1.55 albertel 170: if (($cnum) && ($role ne 'ca')) {
171: my ($furl,$ferr)=
172: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
173: if (($ENV{'form.orgurl'}) &&
174: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
1.67 albertel 175: my $dest=$ENV{'form.orgurl'};
1.71 albertel 176: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1.67 albertel 177: &Apache::lonnet::cleanenv();
1.69 albertel 178: }
1.67 albertel 179: $r->internal_redirect($dest);
1.55 albertel 180: return OK;
181: } else {
182: unless ($ENV{'request.course.id'}) {
183: &Apache::lonnet::appenv(
184: "request.course.id" => $cdom.'_'.$cnum);
1.61 www 185: $furl='/adm/roles?tryagain=1';
1.55 albertel 186: $msg=
1.72 www 187: '<h1><font color=red>'.
188: &mt('Could not initialize course at this time.').
189: '</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 190: }
1.58 bowersj2 191:
192: # Check to see if the user is a CC entering a course
193: # for the first time
194: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
195: if (substr($courseid, 0, 1) eq '/') {
196: $courseid = substr($courseid, 1);
197: }
198: $courseid =~ s/\//_/;
199: if ($role eq 'cc' && $ENV{'course.' . $courseid .
200: '.course.helper.not.run'}) {
201: $furl = "/adm/helper/course.initialization.helper";
202: }
1.62 matthew 203: #
204: # Send the user to the course they selected
1.78 sakharuk 205: &redirect_user($r,&mt('Entering Course'),
1.62 matthew 206: $furl,$msg);
1.20 www 207: return OK;
1.55 albertel 208: }
209: }
1.62 matthew 210: #
211: # Send the user to the construction space they selected
212: if ($role =~ /^(au|ca)$/) {
213: my $redirect_url = '/priv/';
214: if ($role eq 'au') {
215: $redirect_url.=$ENV{'user.name'};
216: } else {
217: $where =~ /\/(.*)$/;
218: $redirect_url .= $1;
219: }
220: $redirect_url .= '/';
1.78 sakharuk 221: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 222: $redirect_url);
223: return OK;
224: }
1.55 albertel 225: }
226: }
1.6 www 227: }
1.40 matthew 228: }
1.44 www 229:
1.10 www 230:
1.6 www 231: # =============================================================== No Roles Init
1.10 www 232:
1.73 www 233: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 234: &Apache::loncommon::no_cache($r);
1.10 www 235: $r->send_http_header;
236: return OK if $r->header_only;
237:
1.52 www 238: my $swinfo=&Apache::lonmenu::rawconfig();
1.41 www 239: my $bodytag=&Apache::loncommon::bodytag('User Roles');
1.82 www 240: my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_topic
241: ("General_Intro",&mt("Click here for help")).'</td><td>'.
242: &Apache::loncommon::help_open_faq(1,&mt('Click here for FAQ')).'</td><td>'.
243: &Apache::loncommon::help_open_bug('',&mt('Click here to report bugs')).'</td></tr></table>';
1.10 www 244: $r->print(<<ENDHEADER);
245: <html>
246: <head>
247: <title>LON-CAPA User Roles</title>
1.41 www 248: </head>
249: $bodytag
1.45 www 250: $helptag<br />
1.26 www 251: <script>
252: $swinfo
253: window.focus();
254: </script>
1.10 www 255: ENDHEADER
1.6 www 256:
1.2 www 257: # ------------------------------------------ Get Error Message from Environment
258:
259: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
1.12 www 260: if ($ENV{'user.error.msg'}) {
1.55 albertel 261: $r->log_reason(
262: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
1.12 www 263: }
1.1 harris41 264:
1.61 www 265: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 266:
1.61 www 267: my $advanced=$ENV{'user.adv'};
268: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
269: my $tryagain=$ENV{'form.tryagain'};
1.6 www 270:
1.2 www 271: # -------------------------------------------------------- Generate Page Output
1.6 www 272: # --------------------------------------------------------------- Error Header?
1.2 www 273: if ($error) {
274: $r->print("<h1>LON-CAPA Access Control</h1>");
1.4 www 275: $r->print("<hr><pre>Access : ".
276: Apache::lonnet::plaintext($priv)."\n");
277: $r->print("Resource: $fn\n");
278: $r->print("Action : $msg\n</pre><hr>");
1.2 www 279: } else {
1.25 www 280: if ($ENV{'user.error.msg'}) {
281: $r->print(
1.72 www 282: '<h3><font color=red>'.
283: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 284: }
1.2 www 285: }
1.6 www 286: # -------------------------------------------------------- Choice or no choice?
1.2 www 287: if ($nochoose) {
1.6 www 288: if ($advanced) {
1.72 www 289: $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6 www 290: } else {
1.72 www 291: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
292: &mt('This resource might be part of'));
1.55 albertel 293: if ($ENV{'request.course.id'}) {
1.72 www 294: $r->print(&mt(' another'));
1.55 albertel 295: } else {
1.72 www 296: $r->print(&mt(' a certain'));
1.55 albertel 297: }
1.72 www 298: $r->print(&mt(' course.').'</body></html>');
1.55 albertel 299: return OK;
1.6 www 300: }
301: } else {
302: if ($advanced) {
1.72 www 303: $r->print(&mt("Your home server is ").
1.55 albertel 304: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
305: ($ENV{'user.name'},$ENV{'user.domain'})}.
306: "<br />\n");
1.72 www 307: $r->print(&mt(
308: "Author and Co-Author roles may not be available on servers other than your home server."));
1.6 www 309: } else {
1.72 www 310: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.17 www 311: }
1.18 www 312: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
313: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 314: }
1.11 www 315: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
1.6 www 316: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
317: $r->print('<input type=hidden name=selectrole value=1>');
318: }
1.63 www 319: if ($ENV{'user.adv'}) {
320: $r->print(
1.72 www 321: '<br />'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.63 www 322: if ($ENV{'form.showall'}) { $r->print(' checked'); }
1.72 www 323: $r->print('><input type=submit value="'.&mt('Display').'">');
1.63 www 324: }
1.6 www 325: # ----------------------------------------------------------------------- Table
1.63 www 326: $r->print('<br /><table><tr>');
1.6 www 327: unless ($nochoose) { $r->print('<th> </th>'); }
1.72 www 328: $r->print('<th>'.&mt('User Role').'</th><th colspan=2>'.&mt('Extent').
329: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th><th>'.
330: &mt('Remark').'</th></tr>'."\n");
1.4 www 331:
1.75 albertel 332: my (%roletext,%sortrole,%roleclass);
1.3 albertel 333: foreach $envkey (sort keys %ENV) {
1.35 matthew 334: my $button = 1;
1.49 www 335: my $switchserver='';
1.75 albertel 336: my $roletext;
337: my $sortkey;
1.2 www 338: if ($envkey=~/^user\.role\./) {
1.40 matthew 339: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.46 matthew 340: next if (!defined($role) || $role eq '');
1.4 www 341: my $where=join('.',@pwhere);
1.6 www 342: my $trolecode=$role.'.'.$where;
1.4 www 343: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
344: my $tremark='';
345: my $tstatus='is';
346: my $tpstart=' ';
347: my $tpend=' ';
1.47 www 348: my $tfont='#000000';
1.4 www 349: if ($tstart) {
350: if ($tstart>$then) {
1.35 matthew 351: $tstatus='future';
352: if ($tstart<$now) { $tstatus='will'; }
1.4 www 353: }
1.74 www 354: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 355: }
356: if ($tend) {
1.23 www 357: if ($tend<$then) {
1.35 matthew 358: $tstatus='expired';
1.23 www 359: } elsif ($tend<$now) {
1.35 matthew 360: $tstatus='will_not';
1.23 www 361: }
1.74 www 362: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 363: }
1.6 www 364: if ($ENV{'request.role'} eq $trolecode) {
365: $tstatus='selected';
366: }
1.4 www 367: my $tbg;
1.35 matthew 368: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
369: ($ENV{'form.showall'})) {
370: if ($tstatus eq 'is') {
371: $tbg='#77FF77';
1.47 www 372: $tfont='#003300';
1.35 matthew 373: } elsif ($tstatus eq 'future') {
374: $tbg='#FFFF77';
1.49 www 375: $button=0;
1.35 matthew 376: } elsif ($tstatus eq 'will') {
377: $tbg='#FFAA77';
1.72 www 378: $tremark.=&mt('Active at next login. ');
1.35 matthew 379: } elsif ($tstatus eq 'expired') {
380: $tbg='#FF7777';
1.47 www 381: $tfont='#330000';
1.49 www 382: $button=0;
1.35 matthew 383: } elsif ($tstatus eq 'will_not') {
384: $tbg='#AAFF77';
1.72 www 385: $tremark.=&mt('Expired after logout. ');
1.35 matthew 386: } elsif ($tstatus eq 'selected') {
387: $tbg='#11CC55';
1.47 www 388: $tfont='#002200';
1.72 www 389: $tremark.=&mt('Currently selected. ');
1.35 matthew 390: }
391: my $trole;
392: if ($role =~ /^cr\//) {
393: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.72 www 394: $tremark.='<br>'.&mt('Defined by ').$rauthor.
395: &mt(' at ').$rdomain.'.';
1.35 matthew 396: $trole=$rrole;
1.8 www 397: } else {
1.35 matthew 398: $trole=Apache::lonnet::plaintext($role);
399: }
400: my $ttype;
401: my $twhere;
402: my ($tdom,$trest,$tsection)=
403: split(/\//,Apache::lonnet::declutter($where));
404: # First, Co-Authorship roles
405: if ($role eq 'ca') {
1.39 stredwic 406: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 ! albertel 407: my $allowed=0;
! 408: my @ids=&Apache::lonnet::current_machine_ids();
! 409: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
! 410: if (!$allowed) {
1.49 www 411: $button=0;
1.51 www 412: $switchserver=&Apache::lonnet::escape('http://'.
413: $Apache::lonnet::hostname{$home}.
414: '/adm/login?domain='.$ENV{'user.domain'}.
415: '&username='.$ENV{'user.name'}.
416: '&firsturl=/priv/'.$trest);
1.49 www 417: }
1.35 matthew 418: #next if ($home eq 'no_host');
419: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 420: $ttype='Construction Space';
1.72 www 421: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
422: ': '.$tdom.'<br />'.
423: ' '.&mt('Server').': '.$home;
1.35 matthew 424: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 425: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 426: $sortkey=$role."$trest:$tdom";
1.35 matthew 427: } elsif ($role eq 'au') {
428: # Authors
429: my $home = &Apache::lonnet::homeserver
1.39 stredwic 430: ($ENV{'user.name'},$ENV{'user.domain'});
1.83 ! albertel 431: my $allowed=0;
! 432: my @ids=&Apache::lonnet::current_machine_ids();
! 433: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
! 434: if (!$allowed) {
1.49 www 435: $button=0;
1.51 www 436: $switchserver=&Apache::lonnet::escape('http://'.
437: $Apache::lonnet::hostname{$home}.
438: '/adm/login?domain='.$ENV{'user.domain'}.
439: '&username='.$ENV{'user.name'}.
440: '&firsturl=/priv/'.$ENV{'user.name'});
1.49 www 441: }
1.35 matthew 442: #next if ($home eq 'no_host');
443: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 444: $ttype='Construction Space';
1.72 www 445: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
446: ': '.$home;
1.35 matthew 447: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 448: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$ENV{'user.name'}.'/');
1.75 albertel 449: $sortkey=$role;
1.35 matthew 450: } elsif ($trest) {
1.78 sakharuk 451: $ttype='Course';
1.35 matthew 452: if ($tsection) {
1.72 www 453: $ttype.='<br>'.&mt('Section/Group').': '.$tsection;
1.37 albertel 454: }
1.35 matthew 455: my $tcourseid=$tdom.'_'.$trest;
456: if ($ENV{'course.'.$tcourseid.'.description'}) {
1.47 www 457: $twhere=$ENV{'course.'.$tcourseid.'.description'};
1.80 albertel 458: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 459: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 460: $twhere.=' <font size="-2">'.
1.72 www 461: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 462: '</font>';
1.55 albertel 463: }
1.8 www 464: } else {
1.35 matthew 465: my %newhash=Apache::lonnet::coursedescription
466: ($tcourseid);
467: if (%newhash) {
1.80 albertel 468: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 469: "\0".$envkey;
1.49 www 470: $twhere=$newhash{'description'}.
471: ' <font size="-2">'.
1.72 www 472: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 473: '</font>';
1.35 matthew 474: } else {
1.72 www 475: $twhere=&mt('Currently not available');
1.35 matthew 476: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 477: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 478: }
1.8 www 479: }
1.72 www 480: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 481: } elsif ($tdom) {
1.78 sakharuk 482: $ttype='Domain';
1.35 matthew 483: $twhere=$tdom;
1.75 albertel 484: $sortkey=$role.$twhere;
1.35 matthew 485: } else {
1.78 sakharuk 486: $ttype='System';
1.72 www 487: $twhere=&mt('system wide');
1.75 albertel 488: $sortkey=$role.$twhere;
1.13 www 489: }
1.35 matthew 490:
1.75 albertel 491: $roletext.='<tr bgcolor='.$tbg.'>';
1.35 matthew 492: unless ($nochoose) {
493: if (!$button) {
1.49 www 494: if ($switchserver) {
1.75 albertel 495: $roletext.='<td><a href="/adm/logout?handover='.
496: $switchserver.'">'.&mt('Switch Server').'</a></td>';
1.49 www 497: } else {
1.75 albertel 498: $roletext.=('<td> </td>');
1.49 www 499: }
1.35 matthew 500: } elsif ($tstatus eq 'is') {
1.75 albertel 501: $roletext.=('<td><input type=submit value="'.
1.72 www 502: &mt('Select').'" name="'.
1.35 matthew 503: $trolecode.'"></td>');
1.61 www 504: } elsif ($tryagain) {
1.75 albertel 505: $roletext.=
506: '<td><input type=submit value="'.
507: &mt('Try Selecting Again').'" name="'.$trolecode.'"></td>';
1.61 www 508: } elsif ($advanced) {
1.75 albertel 509: $roletext.=
510: '<td><input type=submit value="'.
511: &mt('Re-Initialize').'" name="'.$trolecode.'"></td>';
1.35 matthew 512: } else {
1.75 albertel 513: $roletext.='<td> </td>';
1.35 matthew 514: }
1.6 www 515: }
1.57 www 516: $tremark.=&Apache::lonannounce::showday(time,1,
517: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
518:
1.75 albertel 519: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.47 www 520: '</font></td><td><font color="'.$tfont.'">'.$ttype.
521: '</font></td><td><font color="'.$tfont.'">'.$twhere.
522: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
523: '</font></td><td><font color="'.$tfont.'">'.$tpend.
524: '</font></td><td><font color="'.$tfont.'">'.$tremark.
1.75 albertel 525: ' </font></td></tr>'."\n";
526: $roletext{$envkey}=$roletext;
527: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
528: $sortrole{$sortkey}=$envkey;
529: $roleclass{$envkey}=$ttype;
1.55 albertel 530: }
1.4 www 531: }
1.75 albertel 532: }
1.76 albertel 533: my $doheaders=-1;
1.78 sakharuk 534: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 535: my $haverole=0;
1.75 albertel 536: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
537: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 538: $haverole=1;
1.75 albertel 539: }
1.76 albertel 540: }
541: if ($haverole) { $doheaders++; }
542: }
1.78 sakharuk 543: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 544: my $output;
545: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
546: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.78 sakharuk 547: $output.=&mt($roletext{$sortrole{$which}});
1.76 albertel 548: }
549: }
550: if ($output) {
551: if ($doheaders > 0) {
1.77 albertel 552: $r->print("<tr bgcolor='#BBffBB'>".
1.79 sakharuk 553: "<td align='center' colspan='7'>".&mt($type)."</td>");
1.76 albertel 554: }
555: $r->print($output);
1.75 albertel 556: }
1.4 www 557: }
1.14 www 558: my $tremark='';
1.47 www 559: my $tfont='#003300';
1.14 www 560: if ($ENV{'request.role'} eq 'cm') {
1.19 www 561: $r->print('<tr bgcolor="#11CC55">');
1.72 www 562: $tremark=&mt('Currently selected. ');
1.47 www 563: $tfont='#002200';
1.14 www 564: } else {
565: $r->print('<tr bgcolor="#77FF77">');
566: }
567: unless ($nochoose) {
1.55 albertel 568: if ($ENV{'request.role'} ne 'cm') {
1.72 www 569: $r->print('<td><input type=submit value="'.
570: &mt('Select').'" name="cm"></td>');
1.55 albertel 571: } else {
572: $r->print('<td> </td>');
573: }
1.14 www 574: }
1.72 www 575: $r->print('<td colspan=5><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 576: '</font></td><td><font color="'.$tfont.'">'.$tremark.
577: ' </font></td></tr>'."\n");
1.4 www 578:
579: $r->print('</table>');
580: unless ($nochoose) {
581: $r->print("</form>\n");
582: }
1.22 harris41 583: # ------------------------------------------------------------ Privileges Info
1.55 albertel 584: if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) {
585: $r->print('<hr><h2>Current Privileges</h2>');
1.4 www 586:
1.55 albertel 587: foreach $envkey (sort keys %ENV) {
588: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
589: my $where=$envkey;
590: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
591: my $ttype;
592: my $twhere;
593: my ($tdom,$trest,$tsec)=
594: split(/\//,Apache::lonnet::declutter($where));
595: if ($trest) {
596: if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
597: $ttype='Construction Space';
598: $twhere='User: '.$trest.', Domain: '.$tdom;
599: } else {
600: $ttype='Course';
601: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
602: if ($tsec) {
603: $twhere.=' (Section/Group: '.$tsec.')';
604: }
605: }
606: } elsif ($tdom) {
607: $ttype='Domain';
608: $twhere=$tdom;
609: } else {
610: $ttype='System';
611: $twhere='/';
612: }
613: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
614: foreach (sort split(/:/,$ENV{$envkey})) {
615: if ($_) {
616: my ($prv,$restr)=split(/\&/,$_);
617: my $trestr='';
618: if ($restr ne 'F') {
619: my $i;
620: $trestr.=' (';
621: for ($i=0;$i<length($restr);$i++) {
622: $trestr.=
623: Apache::lonnet::plaintext(substr($restr,$i,1));
624: if ($i<length($restr)-1) { $trestr.=', '; }
625: }
626: $trestr.=')';
627: }
628: $r->print('<li>'.
629: Apache::lonnet::plaintext($prv).$trestr.
630: '</li>');
631: }
632: }
633: $r->print('</ul>');
634: }
635: }
1.4 www 636: }
1.66 www 637: $r->print(&Apache::lonnet::getannounce());
1.65 www 638: if ($advanced) {
639: $r->print('<p><small><i>This is LON-CAPA '.
640: $r->dir_config('lonVersion').'</i></small></p>');
641: }
1.1 harris41 642: $r->print("</body></html>\n");
643: return OK;
644: }
645:
646: 1;
647: __END__
1.32 harris41 648:
649: =head1 NAME
650:
651: Apache::lonroles - User Roles Screen
652:
653: =head1 SYNOPSIS
654:
655: Invoked by /etc/httpd/conf/srm.conf:
656:
657: <Location /adm/roles>
658: PerlAccessHandler Apache::lonacc
659: SetHandler perl-script
660: PerlHandler Apache::lonroles
661: ErrorDocument 403 /adm/login
662: ErrorDocument 500 /adm/errorhandler
663: </Location>
1.64 bowersj2 664:
665: =head1 OVERVIEW
666:
667: =head2 Choosing Roles
668:
669: C<lonroles> is a handler that allows a user to switch roles in
670: mid-session. LON-CAPA attempts to work with "No Role Specified", the
671: default role that a user has before selecting a role, as widely as
672: possible, but certain handlers for example need specification which
673: course they should act on, etc. Both in this scenario, and when the
674: handler determines via C<lonnet>'s C<&allowed> function that a certain
675: action is not allowed, C<lonroles> is used as error handler. This
676: allows the user to select another role which may have permission to do
677: what they were trying to do. C<lonroles> can also be accessed via the
678: B<CRS> button in the Remote Control.
679:
680: =begin latex
681:
682: \begin{figure}
683: \begin{center}
684: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
685: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
686: \end{center}
687: \end{figure}
688:
689: =end latex
690:
691: =head2 Role Initialization
692:
693: 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 694:
695: =head1 INTRODUCTION
696:
697: This module enables a user to select what role he wishes to
698: operate under (instructor, student, teaching assistant, course
699: coordinator, etc). These roles are pre-established by the actions
700: of upper-level users.
701:
702: This is part of the LearningOnline Network with CAPA project
703: described at http://www.lon-capa.org.
704:
705: =head1 HANDLER SUBROUTINE
706:
707: This routine is called by Apache and mod_perl.
708:
709: =over 4
710:
711: =item *
712:
713: Roles Initialization (yes/no)
714:
715: =item *
716:
717: Get Error Message from Environment
718:
719: =item *
720:
721: Who is this?
722:
723: =item *
724:
725: Generate Page Output
726:
727: =item *
728:
729: Choice or no choice
730:
731: =item *
732:
733: Table
734:
735: =item *
736:
737: Privileges
738:
739: =back
740:
741: =cut
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