Annotation of loncom/auth/lonroles.pm, revision 1.77
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.77 ! albertel 4: # $Id: lonroles.pm,v 1.76 2003/11/08 21:51:44 albertel 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: $furl = "/adm/helper/course.initialization.helper";
202: }
1.62 matthew 203: #
204: # Send the user to the course they selected
205: &redirect_user($r,'Entering Course',
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: $redirect_url .= '/';
221: &redirect_user($r,'Entering Construction Space',
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');
1.48 www 240: my $helptag=&Apache::loncommon::help_open_topic
1.52 www 241: ("General_Intro","Click here for help");
1.10 www 242: $r->print(<<ENDHEADER);
243: <html>
244: <head>
245: <title>LON-CAPA User Roles</title>
1.41 www 246: </head>
247: $bodytag
1.45 www 248: $helptag<br />
1.26 www 249: <script>
250: $swinfo
251: window.focus();
252: </script>
1.10 www 253: ENDHEADER
1.6 www 254:
1.2 www 255: # ------------------------------------------ Get Error Message from Environment
256:
257: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
1.12 www 258: if ($ENV{'user.error.msg'}) {
1.55 albertel 259: $r->log_reason(
260: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
1.12 www 261: }
1.1 harris41 262:
1.61 www 263: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 264:
1.61 www 265: my $advanced=$ENV{'user.adv'};
266: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
267: my $tryagain=$ENV{'form.tryagain'};
1.6 www 268:
1.2 www 269: # -------------------------------------------------------- Generate Page Output
1.6 www 270: # --------------------------------------------------------------- Error Header?
1.2 www 271: if ($error) {
272: $r->print("<h1>LON-CAPA Access Control</h1>");
1.4 www 273: $r->print("<hr><pre>Access : ".
274: Apache::lonnet::plaintext($priv)."\n");
275: $r->print("Resource: $fn\n");
276: $r->print("Action : $msg\n</pre><hr>");
1.2 www 277: } else {
1.25 www 278: if ($ENV{'user.error.msg'}) {
279: $r->print(
1.72 www 280: '<h3><font color=red>'.
281: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 282: }
1.2 www 283: }
1.6 www 284: # -------------------------------------------------------- Choice or no choice?
1.2 www 285: if ($nochoose) {
1.6 www 286: if ($advanced) {
1.72 www 287: $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6 www 288: } else {
1.72 www 289: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
290: &mt('This resource might be part of'));
1.55 albertel 291: if ($ENV{'request.course.id'}) {
1.72 www 292: $r->print(&mt(' another'));
1.55 albertel 293: } else {
1.72 www 294: $r->print(&mt(' a certain'));
1.55 albertel 295: }
1.72 www 296: $r->print(&mt(' course.').'</body></html>');
1.55 albertel 297: return OK;
1.6 www 298: }
299: } else {
300: if ($advanced) {
1.72 www 301: $r->print(&mt("Your home server is ").
1.55 albertel 302: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
303: ($ENV{'user.name'},$ENV{'user.domain'})}.
304: "<br />\n");
1.72 www 305: $r->print(&mt(
306: "Author and Co-Author roles may not be available on servers other than your home server."));
1.6 www 307: } else {
1.72 www 308: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
1.17 www 309: }
1.18 www 310: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
311: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 312: }
1.11 www 313: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
1.6 www 314: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
315: $r->print('<input type=hidden name=selectrole value=1>');
316: }
1.63 www 317: if ($ENV{'user.adv'}) {
318: $r->print(
1.72 www 319: '<br />'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.63 www 320: if ($ENV{'form.showall'}) { $r->print(' checked'); }
1.72 www 321: $r->print('><input type=submit value="'.&mt('Display').'">');
1.63 www 322: }
1.6 www 323: # ----------------------------------------------------------------------- Table
1.63 www 324: $r->print('<br /><table><tr>');
1.6 www 325: unless ($nochoose) { $r->print('<th> </th>'); }
1.72 www 326: $r->print('<th>'.&mt('User Role').'</th><th colspan=2>'.&mt('Extent').
327: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th><th>'.
328: &mt('Remark').'</th></tr>'."\n");
1.4 www 329:
1.75 albertel 330: my (%roletext,%sortrole,%roleclass);
1.3 albertel 331: foreach $envkey (sort keys %ENV) {
1.35 matthew 332: my $button = 1;
1.49 www 333: my $switchserver='';
1.75 albertel 334: my $roletext;
335: my $sortkey;
1.2 www 336: if ($envkey=~/^user\.role\./) {
1.40 matthew 337: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.46 matthew 338: next if (!defined($role) || $role eq '');
1.4 www 339: my $where=join('.',@pwhere);
1.6 www 340: my $trolecode=$role.'.'.$where;
1.4 www 341: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
342: my $tremark='';
343: my $tstatus='is';
344: my $tpstart=' ';
345: my $tpend=' ';
1.47 www 346: my $tfont='#000000';
1.4 www 347: if ($tstart) {
348: if ($tstart>$then) {
1.35 matthew 349: $tstatus='future';
350: if ($tstart<$now) { $tstatus='will'; }
1.4 www 351: }
1.74 www 352: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 353: }
354: if ($tend) {
1.23 www 355: if ($tend<$then) {
1.35 matthew 356: $tstatus='expired';
1.23 www 357: } elsif ($tend<$now) {
1.35 matthew 358: $tstatus='will_not';
1.23 www 359: }
1.74 www 360: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 361: }
1.6 www 362: if ($ENV{'request.role'} eq $trolecode) {
363: $tstatus='selected';
364: }
1.4 www 365: my $tbg;
1.35 matthew 366: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
367: ($ENV{'form.showall'})) {
368: if ($tstatus eq 'is') {
369: $tbg='#77FF77';
1.47 www 370: $tfont='#003300';
1.35 matthew 371: } elsif ($tstatus eq 'future') {
372: $tbg='#FFFF77';
1.49 www 373: $button=0;
1.35 matthew 374: } elsif ($tstatus eq 'will') {
375: $tbg='#FFAA77';
1.72 www 376: $tremark.=&mt('Active at next login. ');
1.35 matthew 377: } elsif ($tstatus eq 'expired') {
378: $tbg='#FF7777';
1.47 www 379: $tfont='#330000';
1.49 www 380: $button=0;
1.35 matthew 381: } elsif ($tstatus eq 'will_not') {
382: $tbg='#AAFF77';
1.72 www 383: $tremark.=&mt('Expired after logout. ');
1.35 matthew 384: } elsif ($tstatus eq 'selected') {
385: $tbg='#11CC55';
1.47 www 386: $tfont='#002200';
1.72 www 387: $tremark.=&mt('Currently selected. ');
1.35 matthew 388: }
389: my $trole;
390: if ($role =~ /^cr\//) {
391: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.72 www 392: $tremark.='<br>'.&mt('Defined by ').$rauthor.
393: &mt(' at ').$rdomain.'.';
1.35 matthew 394: $trole=$rrole;
1.8 www 395: } else {
1.35 matthew 396: $trole=Apache::lonnet::plaintext($role);
397: }
398: my $ttype;
399: my $twhere;
400: my ($tdom,$trest,$tsection)=
401: split(/\//,Apache::lonnet::declutter($where));
402: # First, Co-Authorship roles
403: if ($role eq 'ca') {
1.39 stredwic 404: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.49 www 405: if ($home ne $r->dir_config('lonHostID')) {
406: $button=0;
1.51 www 407: $switchserver=&Apache::lonnet::escape('http://'.
408: $Apache::lonnet::hostname{$home}.
409: '/adm/login?domain='.$ENV{'user.domain'}.
410: '&username='.$ENV{'user.name'}.
411: '&firsturl=/priv/'.$trest);
1.49 www 412: }
1.35 matthew 413: #next if ($home eq 'no_host');
414: $home = $Apache::lonnet::hostname{$home};
1.72 www 415: $ttype=&mt('Construction Space');
416: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
417: ': '.$tdom.'<br />'.
418: ' '.&mt('Server').': '.$home;
1.35 matthew 419: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.75 albertel 420: $sortkey=$role."$trest:$tdom";
1.35 matthew 421: } elsif ($role eq 'au') {
422: # Authors
423: my $home = &Apache::lonnet::homeserver
1.39 stredwic 424: ($ENV{'user.name'},$ENV{'user.domain'});
1.49 www 425: if ($home ne $r->dir_config('lonHostID')) {
426: $button=0;
1.51 www 427: $switchserver=&Apache::lonnet::escape('http://'.
428: $Apache::lonnet::hostname{$home}.
429: '/adm/login?domain='.$ENV{'user.domain'}.
430: '&username='.$ENV{'user.name'}.
431: '&firsturl=/priv/'.$ENV{'user.name'});
1.49 www 432: }
1.35 matthew 433: #next if ($home eq 'no_host');
434: $home = $Apache::lonnet::hostname{$home};
1.72 www 435: $ttype=&mt('Construction Space');
436: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
437: ': '.$home;
1.35 matthew 438: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.75 albertel 439: $sortkey=$role;
1.35 matthew 440: } elsif ($trest) {
1.72 www 441: $ttype=&mt('Course');
1.35 matthew 442: if ($tsection) {
1.72 www 443: $ttype.='<br>'.&mt('Section/Group').': '.$tsection;
1.37 albertel 444: }
1.35 matthew 445: my $tcourseid=$tdom.'_'.$trest;
446: if ($ENV{'course.'.$tcourseid.'.description'}) {
1.47 www 447: $twhere=$ENV{'course.'.$tcourseid.'.description'};
1.77 ! albertel 448: $sortkey=$tdom."\0".$twhere."\0".$envkey;
1.72 www 449: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 450: $twhere.=' <font size="-2">'.
1.72 www 451: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 452: '</font>';
1.55 albertel 453: }
1.8 www 454: } else {
1.35 matthew 455: my %newhash=Apache::lonnet::coursedescription
456: ($tcourseid);
457: if (%newhash) {
1.77 ! albertel 458: $sortkey=$tdom."\0".$newhash{'description'}.
! 459: "\0".$envkey;
1.49 www 460: $twhere=$newhash{'description'}.
461: ' <font size="-2">'.
1.72 www 462: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 463: '</font>';
1.35 matthew 464: } else {
1.72 www 465: $twhere=&mt('Currently not available');
1.35 matthew 466: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
1.77 ! albertel 467: $sortkey=$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 468: }
1.8 www 469: }
1.72 www 470: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 471: } elsif ($tdom) {
1.72 www 472: $ttype=&mt('Domain');
1.35 matthew 473: $twhere=$tdom;
1.75 albertel 474: $sortkey=$role.$twhere;
1.35 matthew 475: } else {
1.72 www 476: $ttype=&mt('System');
477: $twhere=&mt('system wide');
1.75 albertel 478: $sortkey=$role.$twhere;
1.13 www 479: }
1.35 matthew 480:
1.75 albertel 481: $roletext.='<tr bgcolor='.$tbg.'>';
1.35 matthew 482: unless ($nochoose) {
483: if (!$button) {
1.49 www 484: if ($switchserver) {
1.75 albertel 485: $roletext.='<td><a href="/adm/logout?handover='.
486: $switchserver.'">'.&mt('Switch Server').'</a></td>';
1.49 www 487: } else {
1.75 albertel 488: $roletext.=('<td> </td>');
1.49 www 489: }
1.35 matthew 490: } elsif ($tstatus eq 'is') {
1.75 albertel 491: $roletext.=('<td><input type=submit value="'.
1.72 www 492: &mt('Select').'" name="'.
1.35 matthew 493: $trolecode.'"></td>');
1.61 www 494: } elsif ($tryagain) {
1.75 albertel 495: $roletext.=
496: '<td><input type=submit value="'.
497: &mt('Try Selecting Again').'" name="'.$trolecode.'"></td>';
1.61 www 498: } elsif ($advanced) {
1.75 albertel 499: $roletext.=
500: '<td><input type=submit value="'.
501: &mt('Re-Initialize').'" name="'.$trolecode.'"></td>';
1.35 matthew 502: } else {
1.75 albertel 503: $roletext.='<td> </td>';
1.35 matthew 504: }
1.6 www 505: }
1.57 www 506: $tremark.=&Apache::lonannounce::showday(time,1,
507: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
508:
1.75 albertel 509: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.47 www 510: '</font></td><td><font color="'.$tfont.'">'.$ttype.
511: '</font></td><td><font color="'.$tfont.'">'.$twhere.
512: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
513: '</font></td><td><font color="'.$tfont.'">'.$tpend.
514: '</font></td><td><font color="'.$tfont.'">'.$tremark.
1.75 albertel 515: ' </font></td></tr>'."\n";
516: $roletext{$envkey}=$roletext;
517: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
518: $sortrole{$sortkey}=$envkey;
519: $roleclass{$envkey}=$ttype;
1.55 albertel 520: }
1.4 www 521: }
1.75 albertel 522: }
1.76 albertel 523: my $doheaders=-1;
524: foreach my $type (&mt('Construction Space'),&mt('Course'),
525: &mt('Domain'),&mt('System')) {
526: my $haverole=0;
1.75 albertel 527: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
528: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 529: $haverole=1;
1.75 albertel 530: }
1.76 albertel 531: }
532: if ($haverole) { $doheaders++; }
533: }
534: foreach my $type (&mt('Construction Space'),&mt('Course'),
535: &mt('Domain'),&mt('System')) {
536: my $output;
537: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
538: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
539: $output.=$roletext{$sortrole{$which}};
540: }
541: }
542: if ($output) {
543: if ($doheaders > 0) {
1.77 ! albertel 544: $r->print("<tr bgcolor='#BBffBB'>".
1.76 albertel 545: "<td align='center' colspan='7'>$type</td>");
546: }
547: $r->print($output);
1.75 albertel 548: }
1.4 www 549: }
1.14 www 550: my $tremark='';
1.47 www 551: my $tfont='#003300';
1.14 www 552: if ($ENV{'request.role'} eq 'cm') {
1.19 www 553: $r->print('<tr bgcolor="#11CC55">');
1.72 www 554: $tremark=&mt('Currently selected. ');
1.47 www 555: $tfont='#002200';
1.14 www 556: } else {
557: $r->print('<tr bgcolor="#77FF77">');
558: }
559: unless ($nochoose) {
1.55 albertel 560: if ($ENV{'request.role'} ne 'cm') {
1.72 www 561: $r->print('<td><input type=submit value="'.
562: &mt('Select').'" name="cm"></td>');
1.55 albertel 563: } else {
564: $r->print('<td> </td>');
565: }
1.14 www 566: }
1.72 www 567: $r->print('<td colspan=5><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 568: '</font></td><td><font color="'.$tfont.'">'.$tremark.
569: ' </font></td></tr>'."\n");
1.4 www 570:
571: $r->print('</table>');
572: unless ($nochoose) {
573: $r->print("</form>\n");
574: }
1.22 harris41 575: # ------------------------------------------------------------ Privileges Info
1.55 albertel 576: if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) {
577: $r->print('<hr><h2>Current Privileges</h2>');
1.4 www 578:
1.55 albertel 579: foreach $envkey (sort keys %ENV) {
580: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
581: my $where=$envkey;
582: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
583: my $ttype;
584: my $twhere;
585: my ($tdom,$trest,$tsec)=
586: split(/\//,Apache::lonnet::declutter($where));
587: if ($trest) {
588: if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
589: $ttype='Construction Space';
590: $twhere='User: '.$trest.', Domain: '.$tdom;
591: } else {
592: $ttype='Course';
593: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
594: if ($tsec) {
595: $twhere.=' (Section/Group: '.$tsec.')';
596: }
597: }
598: } elsif ($tdom) {
599: $ttype='Domain';
600: $twhere=$tdom;
601: } else {
602: $ttype='System';
603: $twhere='/';
604: }
605: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
606: foreach (sort split(/:/,$ENV{$envkey})) {
607: if ($_) {
608: my ($prv,$restr)=split(/\&/,$_);
609: my $trestr='';
610: if ($restr ne 'F') {
611: my $i;
612: $trestr.=' (';
613: for ($i=0;$i<length($restr);$i++) {
614: $trestr.=
615: Apache::lonnet::plaintext(substr($restr,$i,1));
616: if ($i<length($restr)-1) { $trestr.=', '; }
617: }
618: $trestr.=')';
619: }
620: $r->print('<li>'.
621: Apache::lonnet::plaintext($prv).$trestr.
622: '</li>');
623: }
624: }
625: $r->print('</ul>');
626: }
627: }
1.4 www 628: }
1.66 www 629: $r->print(&Apache::lonnet::getannounce());
1.65 www 630: if ($advanced) {
631: $r->print('<p><small><i>This is LON-CAPA '.
632: $r->dir_config('lonVersion').'</i></small></p>');
633: }
1.1 harris41 634: $r->print("</body></html>\n");
635: return OK;
636: }
637:
638: 1;
639: __END__
1.32 harris41 640:
641: =head1 NAME
642:
643: Apache::lonroles - User Roles Screen
644:
645: =head1 SYNOPSIS
646:
647: Invoked by /etc/httpd/conf/srm.conf:
648:
649: <Location /adm/roles>
650: PerlAccessHandler Apache::lonacc
651: SetHandler perl-script
652: PerlHandler Apache::lonroles
653: ErrorDocument 403 /adm/login
654: ErrorDocument 500 /adm/errorhandler
655: </Location>
1.64 bowersj2 656:
657: =head1 OVERVIEW
658:
659: =head2 Choosing Roles
660:
661: C<lonroles> is a handler that allows a user to switch roles in
662: mid-session. LON-CAPA attempts to work with "No Role Specified", the
663: default role that a user has before selecting a role, as widely as
664: possible, but certain handlers for example need specification which
665: course they should act on, etc. Both in this scenario, and when the
666: handler determines via C<lonnet>'s C<&allowed> function that a certain
667: action is not allowed, C<lonroles> is used as error handler. This
668: allows the user to select another role which may have permission to do
669: what they were trying to do. C<lonroles> can also be accessed via the
670: B<CRS> button in the Remote Control.
671:
672: =begin latex
673:
674: \begin{figure}
675: \begin{center}
676: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
677: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
678: \end{center}
679: \end{figure}
680:
681: =end latex
682:
683: =head2 Role Initialization
684:
685: 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 686:
687: =head1 INTRODUCTION
688:
689: This module enables a user to select what role he wishes to
690: operate under (instructor, student, teaching assistant, course
691: coordinator, etc). These roles are pre-established by the actions
692: of upper-level users.
693:
694: This is part of the LearningOnline Network with CAPA project
695: described at http://www.lon-capa.org.
696:
697: =head1 HANDLER SUBROUTINE
698:
699: This routine is called by Apache and mod_perl.
700:
701: =over 4
702:
703: =item *
704:
705: Roles Initialization (yes/no)
706:
707: =item *
708:
709: Get Error Message from Environment
710:
711: =item *
712:
713: Who is this?
714:
715: =item *
716:
717: Generate Page Output
718:
719: =item *
720:
721: Choice or no choice
722:
723: =item *
724:
725: Table
726:
727: =item *
728:
729: Privileges
730:
731: =back
732:
733: =cut
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