Annotation of loncom/auth/lonroles.pm, revision 1.91
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.91 ! www 4: # $Id: lonroles.pm,v 1.90 2004/05/08 16:26:32 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;
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;
1.57 www 39: use Apache::lonannounce;
1.72 www 40: use Apache::lonlocal;
1.1 harris41 41:
1.62 matthew 42: sub redirect_user {
43: my ($r,$title,$url,$msg) = @_;
44: $msg = $title if (! defined($msg));
1.73 www 45: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 46: &Apache::loncommon::no_cache($r);
47: $r->send_http_header;
48: my $swinfo=&Apache::lonmenu::rawconfig();
49: my $bodytag=&Apache::loncommon::bodytag('Switching Role');
50: $r->print (<<ENDREDIR);
51: <head><title>$title</title>
52: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$url">
53: </head>
54: <html>
55: $bodytag
56: <script>
57: $swinfo
58: </script>
59: <h1>$msg</h1>
60: </body>
61: </html>
62: ENDREDIR
63: return;
64: }
65:
1.1 harris41 66: sub handler {
1.10 www 67:
1.1 harris41 68: my $r = shift;
69:
1.6 www 70: my $now=time;
71: my $then=$ENV{'user.login.time'};
72: my $envkey;
73:
1.10 www 74:
1.6 www 75: # ================================================================== Roles Init
76:
77: if ($ENV{'form.selectrole'}) {
1.33 www 78: if ($ENV{'request.course.id'}) {
79: my %temp=('logout_'.$ENV{'request.course.id'} => time);
80: &Apache::lonnet::put('email_status',\%temp);
81: }
1.55 albertel 82: &Apache::lonnet::appenv("request.course.id" => '',
83: "request.course.fn" => '',
84: "request.course.uri" => '',
85: "request.course.sec" => '',
86: "request.role" => 'cm',
1.56 www 87: "request.role.adv" => $ENV{'user.adv'},
1.55 albertel 88: "request.role.domain" => $ENV{'user.domain'});
1.13 www 89: foreach $envkey (keys %ENV) {
1.40 matthew 90: next if ($envkey!~/^user\.role\./);
91: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.6 www 92: my $where=join('.',@pwhere);
93: my $trolecode=$role.'.'.$where;
94: if ($ENV{'form.'.$trolecode}) {
1.55 albertel 95: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
96: my $tstatus='is';
97: if ($tstart) {
98: if ($tstart>$then) {
99: $tstatus='future';
100: }
101: }
102: if ($tend) {
103: if ($tend<$then) { $tstatus='expired'; }
104: if ($tend<$now) { $tstatus='will_not'; }
105: }
106: if ($tstatus eq 'is') {
107: $where=~s/^\///;
108: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.53 www 109: # check for keyed access
1.55 albertel 110: if (($role eq 'st') &&
111: ($ENV{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 112: # who is key authority?
113: my $authdom=$cdom;
114: my $authnum=$cnum;
115: if ($ENV{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
116: ($authnum,$authdom)=
117: split(/\W/,$ENV{'course.'.$cdom.'_'.$cnum.'.keyauth'});
118: }
119: # check with key authority
120: unless (&Apache::lonnet::validate_access_key(
1.55 albertel 121: $ENV{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 122: $authdom,$authnum)) {
1.53 www 123: # there is no valid key
1.55 albertel 124: if ($ENV{'form.newkey'}) {
1.53 www 125: # student attempts to register a new key
1.89 www 126: &Apache::loncommon::content_type($r,'text/html');
127: &Apache::loncommon::no_cache($r);
128: $r->send_http_header;
129: my $swinfo=&Apache::lonmenu::rawconfig();
130: my $bodytag=&Apache::loncommon::bodytag
131: ('Verifying Access Key to Unlock this Course');
1.90 www 132: my $buttontext=&mt('Enter Course');
133: my $message=&mt('Successfully registered key');
134: my $assignresult=
135: &Apache::lonnet::assign_access_key(
136: $ENV{'form.newkey'},
137: $authdom,$authnum,
1.91 ! www 138: $cdom,$cnum,
1.90 www 139: $ENV{'user.domain'},
140: $ENV{'user.name'},
141: 'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
142: $trolecode);
143: unless ($assignresult eq 'ok') {
144: $assignresult=~s/^error\:\s*//;
145: $message=&mt($assignresult).
146: '<br /><a href="/adm/logout">'.
1.89 www 147: &mt('Logout').'</a>';
1.90 www 148: $buttontext=&mt('Re-Enter Key');
149: }
1.89 www 150: $r->print(<<ENDENTEREDKEY);
151: <head><title>Verifying Course Access Key</title>
152: </head>
153: <html>
154: $bodytag
155: <script>
156: $swinfo
157: </script>
158: <form method="post">
159: <input type="hidden" name="selectrole" value="1" />
160: <input type="hidden" name="$trolecode" value="1" />
1.90 www 161: <font size="+2">$message</font><br />
1.89 www 162: <input type="submit" value="$buttontext" />
163: </form>
164: </body></html>
165: ENDENTEREDKEY
166: return OK;
1.55 albertel 167: } else {
1.53 www 168: # print form to enter a new key
1.73 www 169: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 170: &Apache::loncommon::no_cache($r);
171: $r->send_http_header;
172: my $swinfo=&Apache::lonmenu::rawconfig();
173: my $bodytag=&Apache::loncommon::bodytag
174: ('Enter Access Key to Unlock this Course');
175: $r->print(<<ENDENTERKEY);
1.53 www 176: <head><title>Entering Course Access Key</title>
177: </head>
178: <html>
179: $bodytag
180: <script>
181: $swinfo
182: </script>
183: <form method="post">
1.89 www 184: <input type="hidden" name="selectrole" value="1" />
185: <input type="hidden" name="$trolecode" value="1" />
1.53 www 186: <input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" />
187: <input type="submit" value="Enter key" />
188: </form>
189: </body></html>
190: ENDENTERKEY
1.55 albertel 191: return OK;
192: }
193: }
194: }
1.87 www 195: &Apache::lonnet::log($ENV{'user.domain'},
196: $ENV{'user.name'},
197: $ENV{'user.home'},
198: "Role ".$trolecode);
1.56 www 199: my $tadv=0;
200: if (($trolecode!~/^st/) &&
201: ($trolecode!~/^ta/) &&
202: ($trolecode!~/^cm/)) { $tadv=1; }
203: &Apache::lonnet::appenv(
204: 'request.role' => $trolecode,
205: 'request.role.adv' => $tadv,
206: 'request.role.domain' => $cdom,
207: 'request.course.sec' => $csec);
1.72 www 208: my $msg=&mt('Entering course ...');
1.62 matthew 209:
1.55 albertel 210: if (($cnum) && ($role ne 'ca')) {
211: my ($furl,$ferr)=
212: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
213: if (($ENV{'form.orgurl'}) &&
214: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
1.67 albertel 215: my $dest=$ENV{'form.orgurl'};
1.71 albertel 216: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1.67 albertel 217: &Apache::lonnet::cleanenv();
1.69 albertel 218: }
1.67 albertel 219: $r->internal_redirect($dest);
1.55 albertel 220: return OK;
221: } else {
222: unless ($ENV{'request.course.id'}) {
223: &Apache::lonnet::appenv(
224: "request.course.id" => $cdom.'_'.$cnum);
1.61 www 225: $furl='/adm/roles?tryagain=1';
1.55 albertel 226: $msg=
1.72 www 227: '<h1><font color=red>'.
228: &mt('Could not initialize course at this time.').
229: '</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 230: }
1.58 bowersj2 231:
232: # Check to see if the user is a CC entering a course
233: # for the first time
234: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
235: if (substr($courseid, 0, 1) eq '/') {
236: $courseid = substr($courseid, 1);
237: }
238: $courseid =~ s/\//_/;
239: if ($role eq 'cc' && $ENV{'course.' . $courseid .
240: '.course.helper.not.run'}) {
241: $furl = "/adm/helper/course.initialization.helper";
242: }
1.62 matthew 243: #
244: # Send the user to the course they selected
1.78 sakharuk 245: &redirect_user($r,&mt('Entering Course'),
1.62 matthew 246: $furl,$msg);
1.20 www 247: return OK;
1.55 albertel 248: }
249: }
1.62 matthew 250: #
251: # Send the user to the construction space they selected
252: if ($role =~ /^(au|ca)$/) {
253: my $redirect_url = '/priv/';
254: if ($role eq 'au') {
255: $redirect_url.=$ENV{'user.name'};
256: } else {
257: $where =~ /\/(.*)$/;
258: $redirect_url .= $1;
259: }
260: $redirect_url .= '/';
1.78 sakharuk 261: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 262: $redirect_url);
263: return OK;
264: }
1.55 albertel 265: }
266: }
1.6 www 267: }
1.40 matthew 268: }
1.44 www 269:
1.10 www 270:
1.6 www 271: # =============================================================== No Roles Init
1.10 www 272:
1.73 www 273: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 274: &Apache::loncommon::no_cache($r);
1.10 www 275: $r->send_http_header;
276: return OK if $r->header_only;
277:
1.52 www 278: my $swinfo=&Apache::lonmenu::rawconfig();
1.41 www 279: my $bodytag=&Apache::loncommon::bodytag('User Roles');
1.82 www 280: my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_topic
281: ("General_Intro",&mt("Click here for help")).'</td><td>'.
282: &Apache::loncommon::help_open_faq(1,&mt('Click here for FAQ')).'</td><td>'.
283: &Apache::loncommon::help_open_bug('',&mt('Click here to report bugs')).'</td></tr></table>';
1.10 www 284: $r->print(<<ENDHEADER);
285: <html>
286: <head>
287: <title>LON-CAPA User Roles</title>
1.41 www 288: </head>
289: $bodytag
1.45 www 290: $helptag<br />
1.26 www 291: <script>
292: $swinfo
293: window.focus();
294: </script>
1.10 www 295: ENDHEADER
1.6 www 296:
1.2 www 297: # ------------------------------------------ Get Error Message from Environment
298:
299: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
1.12 www 300: if ($ENV{'user.error.msg'}) {
1.55 albertel 301: $r->log_reason(
302: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
1.12 www 303: }
1.1 harris41 304:
1.61 www 305: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 306:
1.61 www 307: my $advanced=$ENV{'user.adv'};
308: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
309: my $tryagain=$ENV{'form.tryagain'};
1.6 www 310:
1.2 www 311: # -------------------------------------------------------- Generate Page Output
1.6 www 312: # --------------------------------------------------------------- Error Header?
1.2 www 313: if ($error) {
314: $r->print("<h1>LON-CAPA Access Control</h1>");
1.4 www 315: $r->print("<hr><pre>Access : ".
316: Apache::lonnet::plaintext($priv)."\n");
317: $r->print("Resource: $fn\n");
318: $r->print("Action : $msg\n</pre><hr>");
1.2 www 319: } else {
1.25 www 320: if ($ENV{'user.error.msg'}) {
321: $r->print(
1.72 www 322: '<h3><font color=red>'.
323: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 324: }
1.2 www 325: }
1.6 www 326: # -------------------------------------------------------- Choice or no choice?
1.2 www 327: if ($nochoose) {
1.6 www 328: if ($advanced) {
1.72 www 329: $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6 www 330: } else {
1.72 www 331: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
332: &mt('This resource might be part of'));
1.55 albertel 333: if ($ENV{'request.course.id'}) {
1.72 www 334: $r->print(&mt(' another'));
1.55 albertel 335: } else {
1.72 www 336: $r->print(&mt(' a certain'));
1.55 albertel 337: }
1.72 www 338: $r->print(&mt(' course.').'</body></html>');
1.55 albertel 339: return OK;
1.6 www 340: }
341: } else {
342: if ($advanced) {
1.72 www 343: $r->print(&mt("Your home server is ").
1.55 albertel 344: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
345: ($ENV{'user.name'},$ENV{'user.domain'})}.
346: "<br />\n");
1.72 www 347: $r->print(&mt(
348: "Author and Co-Author roles may not be available on servers other than your home server."));
1.17 www 349: }
1.18 www 350: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
351: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 352: }
1.84 www 353: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.6 www 354: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
355: $r->print('<input type=hidden name=selectrole value=1>');
356: }
1.63 www 357: if ($ENV{'user.adv'}) {
358: $r->print(
1.72 www 359: '<br />'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.63 www 360: if ($ENV{'form.showall'}) { $r->print(' checked'); }
1.72 www 361: $r->print('><input type=submit value="'.&mt('Display').'">');
1.63 www 362: }
1.4 www 363:
1.75 albertel 364: my (%roletext,%sortrole,%roleclass);
1.84 www 365: my $countactive=0;
366: my $inrole=0;
367: my $possiblerole='';
1.3 albertel 368: foreach $envkey (sort keys %ENV) {
1.35 matthew 369: my $button = 1;
1.49 www 370: my $switchserver='';
1.75 albertel 371: my $roletext;
372: my $sortkey;
1.2 www 373: if ($envkey=~/^user\.role\./) {
1.40 matthew 374: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.46 matthew 375: next if (!defined($role) || $role eq '');
1.4 www 376: my $where=join('.',@pwhere);
1.6 www 377: my $trolecode=$role.'.'.$where;
1.4 www 378: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
379: my $tremark='';
380: my $tstatus='is';
381: my $tpstart=' ';
382: my $tpend=' ';
1.47 www 383: my $tfont='#000000';
1.4 www 384: if ($tstart) {
385: if ($tstart>$then) {
1.35 matthew 386: $tstatus='future';
387: if ($tstart<$now) { $tstatus='will'; }
1.4 www 388: }
1.74 www 389: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 390: }
391: if ($tend) {
1.23 www 392: if ($tend<$then) {
1.35 matthew 393: $tstatus='expired';
1.23 www 394: } elsif ($tend<$now) {
1.35 matthew 395: $tstatus='will_not';
1.23 www 396: }
1.74 www 397: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 398: }
1.6 www 399: if ($ENV{'request.role'} eq $trolecode) {
400: $tstatus='selected';
401: }
1.4 www 402: my $tbg;
1.35 matthew 403: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
404: ($ENV{'form.showall'})) {
405: if ($tstatus eq 'is') {
406: $tbg='#77FF77';
1.47 www 407: $tfont='#003300';
1.84 www 408: $possiblerole=$trolecode;
409: $countactive++;
1.35 matthew 410: } elsif ($tstatus eq 'future') {
411: $tbg='#FFFF77';
1.49 www 412: $button=0;
1.35 matthew 413: } elsif ($tstatus eq 'will') {
414: $tbg='#FFAA77';
1.72 www 415: $tremark.=&mt('Active at next login. ');
1.35 matthew 416: } elsif ($tstatus eq 'expired') {
417: $tbg='#FF7777';
1.47 www 418: $tfont='#330000';
1.49 www 419: $button=0;
1.35 matthew 420: } elsif ($tstatus eq 'will_not') {
421: $tbg='#AAFF77';
1.72 www 422: $tremark.=&mt('Expired after logout. ');
1.35 matthew 423: } elsif ($tstatus eq 'selected') {
424: $tbg='#11CC55';
1.47 www 425: $tfont='#002200';
1.84 www 426: $inrole=1;
1.86 albertel 427: $countactive++;
1.72 www 428: $tremark.=&mt('Currently selected. ');
1.35 matthew 429: }
430: my $trole;
431: if ($role =~ /^cr\//) {
432: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.72 www 433: $tremark.='<br>'.&mt('Defined by ').$rauthor.
434: &mt(' at ').$rdomain.'.';
1.35 matthew 435: $trole=$rrole;
1.8 www 436: } else {
1.35 matthew 437: $trole=Apache::lonnet::plaintext($role);
438: }
439: my $ttype;
440: my $twhere;
441: my ($tdom,$trest,$tsection)=
442: split(/\//,Apache::lonnet::declutter($where));
443: # First, Co-Authorship roles
444: if ($role eq 'ca') {
1.39 stredwic 445: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 446: my $allowed=0;
447: my @ids=&Apache::lonnet::current_machine_ids();
448: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
449: if (!$allowed) {
1.49 www 450: $button=0;
1.51 www 451: $switchserver=&Apache::lonnet::escape('http://'.
452: $Apache::lonnet::hostname{$home}.
453: '/adm/login?domain='.$ENV{'user.domain'}.
454: '&username='.$ENV{'user.name'}.
455: '&firsturl=/priv/'.$trest);
1.49 www 456: }
1.35 matthew 457: #next if ($home eq 'no_host');
458: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 459: $ttype='Construction Space';
1.72 www 460: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
461: ': '.$tdom.'<br />'.
462: ' '.&mt('Server').': '.$home;
1.35 matthew 463: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 464: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 465: $sortkey=$role."$trest:$tdom";
1.35 matthew 466: } elsif ($role eq 'au') {
467: # Authors
468: my $home = &Apache::lonnet::homeserver
1.39 stredwic 469: ($ENV{'user.name'},$ENV{'user.domain'});
1.83 albertel 470: my $allowed=0;
471: my @ids=&Apache::lonnet::current_machine_ids();
472: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
473: if (!$allowed) {
1.49 www 474: $button=0;
1.51 www 475: $switchserver=&Apache::lonnet::escape('http://'.
476: $Apache::lonnet::hostname{$home}.
477: '/adm/login?domain='.$ENV{'user.domain'}.
478: '&username='.$ENV{'user.name'}.
479: '&firsturl=/priv/'.$ENV{'user.name'});
1.49 www 480: }
1.35 matthew 481: #next if ($home eq 'no_host');
482: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 483: $ttype='Construction Space';
1.72 www 484: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
485: ': '.$home;
1.35 matthew 486: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 487: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$ENV{'user.name'}.'/');
1.75 albertel 488: $sortkey=$role;
1.35 matthew 489: } elsif ($trest) {
1.78 sakharuk 490: $ttype='Course';
1.35 matthew 491: if ($tsection) {
1.72 www 492: $ttype.='<br>'.&mt('Section/Group').': '.$tsection;
1.37 albertel 493: }
1.35 matthew 494: my $tcourseid=$tdom.'_'.$trest;
495: if ($ENV{'course.'.$tcourseid.'.description'}) {
1.47 www 496: $twhere=$ENV{'course.'.$tcourseid.'.description'};
1.80 albertel 497: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 498: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 499: $twhere.=' <font size="-2">'.
1.72 www 500: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 501: '</font>';
1.55 albertel 502: }
1.8 www 503: } else {
1.35 matthew 504: my %newhash=Apache::lonnet::coursedescription
505: ($tcourseid);
506: if (%newhash) {
1.80 albertel 507: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 508: "\0".$envkey;
1.49 www 509: $twhere=$newhash{'description'}.
510: ' <font size="-2">'.
1.72 www 511: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 512: '</font>';
1.35 matthew 513: } else {
1.72 www 514: $twhere=&mt('Currently not available');
1.35 matthew 515: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 516: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 517: }
1.8 www 518: }
1.72 www 519: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 520: } elsif ($tdom) {
1.78 sakharuk 521: $ttype='Domain';
1.35 matthew 522: $twhere=$tdom;
1.75 albertel 523: $sortkey=$role.$twhere;
1.35 matthew 524: } else {
1.78 sakharuk 525: $ttype='System';
1.72 www 526: $twhere=&mt('system wide');
1.75 albertel 527: $sortkey=$role.$twhere;
1.13 www 528: }
1.35 matthew 529:
1.75 albertel 530: $roletext.='<tr bgcolor='.$tbg.'>';
1.35 matthew 531: unless ($nochoose) {
532: if (!$button) {
1.49 www 533: if ($switchserver) {
1.75 albertel 534: $roletext.='<td><a href="/adm/logout?handover='.
535: $switchserver.'">'.&mt('Switch Server').'</a></td>';
1.49 www 536: } else {
1.75 albertel 537: $roletext.=('<td> </td>');
1.49 www 538: }
1.35 matthew 539: } elsif ($tstatus eq 'is') {
1.75 albertel 540: $roletext.=('<td><input type=submit value="'.
1.72 www 541: &mt('Select').'" name="'.
1.35 matthew 542: $trolecode.'"></td>');
1.61 www 543: } elsif ($tryagain) {
1.75 albertel 544: $roletext.=
545: '<td><input type=submit value="'.
546: &mt('Try Selecting Again').'" name="'.$trolecode.'"></td>';
1.61 www 547: } elsif ($advanced) {
1.75 albertel 548: $roletext.=
549: '<td><input type=submit value="'.
550: &mt('Re-Initialize').'" name="'.$trolecode.'"></td>';
1.35 matthew 551: } else {
1.75 albertel 552: $roletext.='<td> </td>';
1.35 matthew 553: }
1.6 www 554: }
1.57 www 555: $tremark.=&Apache::lonannounce::showday(time,1,
556: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
557:
1.75 albertel 558: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.47 www 559: '</font></td><td><font color="'.$tfont.'">'.$ttype.
560: '</font></td><td><font color="'.$tfont.'">'.$twhere.
561: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
562: '</font></td><td><font color="'.$tfont.'">'.$tpend.
563: '</font></td><td><font color="'.$tfont.'">'.$tremark.
1.75 albertel 564: ' </font></td></tr>'."\n";
565: $roletext{$envkey}=$roletext;
566: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
567: $sortrole{$sortkey}=$envkey;
568: $roleclass{$envkey}=$ttype;
1.55 albertel 569: }
1.4 www 570: }
1.75 albertel 571: }
1.84 www 572: # No active roles
573: if ($countactive==0) {
574: if ($inrole) {
575: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
576: } else {
577: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
578: }
579: $r->print('</form></body></html>');
580: return OK;
581: # Is there only one choice?
1.88 www 582: } elsif (($countactive==1) && ($ENV{'request.role'} eq 'cm')) {
1.84 www 583: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
584: '<input type="hidden" name="'.$possiblerole.'" value="1" />');
585: $r->print("</form>\n");
586: $r->rflush();
587: $r->print('<script>document.forms.rolechoice.submit();</script>');
588: $r->print('</body></html>');
589: return OK;
590: }
591: # More than one possible role
592: # ----------------------------------------------------------------------- Table
593: unless (($advanced) || ($nochoose)) {
594: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
595: }
596: $r->print('<br /><table><tr>');
597: unless ($nochoose) { $r->print('<th> </th>'); }
598: $r->print('<th>'.&mt('User Role').'</th><th colspan=2>'.&mt('Extent').
599: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th><th>'.
600: &mt('Remark').'</th></tr>'."\n");
1.76 albertel 601: my $doheaders=-1;
1.78 sakharuk 602: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 603: my $haverole=0;
1.75 albertel 604: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
605: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 606: $haverole=1;
1.75 albertel 607: }
1.76 albertel 608: }
609: if ($haverole) { $doheaders++; }
610: }
1.78 sakharuk 611: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 612: my $output;
613: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
614: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.78 sakharuk 615: $output.=&mt($roletext{$sortrole{$which}});
1.76 albertel 616: }
617: }
618: if ($output) {
619: if ($doheaders > 0) {
1.77 albertel 620: $r->print("<tr bgcolor='#BBffBB'>".
1.79 sakharuk 621: "<td align='center' colspan='7'>".&mt($type)."</td>");
1.76 albertel 622: }
623: $r->print($output);
1.75 albertel 624: }
1.4 www 625: }
1.14 www 626: my $tremark='';
1.47 www 627: my $tfont='#003300';
1.14 www 628: if ($ENV{'request.role'} eq 'cm') {
1.19 www 629: $r->print('<tr bgcolor="#11CC55">');
1.72 www 630: $tremark=&mt('Currently selected. ');
1.47 www 631: $tfont='#002200';
1.14 www 632: } else {
633: $r->print('<tr bgcolor="#77FF77">');
634: }
635: unless ($nochoose) {
1.55 albertel 636: if ($ENV{'request.role'} ne 'cm') {
1.72 www 637: $r->print('<td><input type=submit value="'.
638: &mt('Select').'" name="cm"></td>');
1.55 albertel 639: } else {
640: $r->print('<td> </td>');
641: }
1.14 www 642: }
1.72 www 643: $r->print('<td colspan=5><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 644: '</font></td><td><font color="'.$tfont.'">'.$tremark.
645: ' </font></td></tr>'."\n");
1.4 www 646:
647: $r->print('</table>');
648: unless ($nochoose) {
649: $r->print("</form>\n");
650: }
1.22 harris41 651: # ------------------------------------------------------------ Privileges Info
1.55 albertel 652: if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) {
653: $r->print('<hr><h2>Current Privileges</h2>');
1.4 www 654:
1.55 albertel 655: foreach $envkey (sort keys %ENV) {
656: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
657: my $where=$envkey;
658: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
659: my $ttype;
660: my $twhere;
661: my ($tdom,$trest,$tsec)=
662: split(/\//,Apache::lonnet::declutter($where));
663: if ($trest) {
664: if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
665: $ttype='Construction Space';
666: $twhere='User: '.$trest.', Domain: '.$tdom;
667: } else {
668: $ttype='Course';
669: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
670: if ($tsec) {
671: $twhere.=' (Section/Group: '.$tsec.')';
672: }
673: }
674: } elsif ($tdom) {
675: $ttype='Domain';
676: $twhere=$tdom;
677: } else {
678: $ttype='System';
679: $twhere='/';
680: }
681: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
682: foreach (sort split(/:/,$ENV{$envkey})) {
683: if ($_) {
684: my ($prv,$restr)=split(/\&/,$_);
685: my $trestr='';
686: if ($restr ne 'F') {
687: my $i;
688: $trestr.=' (';
689: for ($i=0;$i<length($restr);$i++) {
690: $trestr.=
691: Apache::lonnet::plaintext(substr($restr,$i,1));
692: if ($i<length($restr)-1) { $trestr.=', '; }
693: }
694: $trestr.=')';
695: }
696: $r->print('<li>'.
697: Apache::lonnet::plaintext($prv).$trestr.
698: '</li>');
699: }
700: }
701: $r->print('</ul>');
702: }
703: }
1.4 www 704: }
1.66 www 705: $r->print(&Apache::lonnet::getannounce());
1.65 www 706: if ($advanced) {
707: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 708: $r->dir_config('lonVersion').'</i><br />'.
709: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 710: }
1.1 harris41 711: $r->print("</body></html>\n");
712: return OK;
713: }
714:
715: 1;
716: __END__
1.32 harris41 717:
718: =head1 NAME
719:
720: Apache::lonroles - User Roles Screen
721:
722: =head1 SYNOPSIS
723:
724: Invoked by /etc/httpd/conf/srm.conf:
725:
726: <Location /adm/roles>
727: PerlAccessHandler Apache::lonacc
728: SetHandler perl-script
729: PerlHandler Apache::lonroles
730: ErrorDocument 403 /adm/login
731: ErrorDocument 500 /adm/errorhandler
732: </Location>
1.64 bowersj2 733:
734: =head1 OVERVIEW
735:
736: =head2 Choosing Roles
737:
738: C<lonroles> is a handler that allows a user to switch roles in
739: mid-session. LON-CAPA attempts to work with "No Role Specified", the
740: default role that a user has before selecting a role, as widely as
741: possible, but certain handlers for example need specification which
742: course they should act on, etc. Both in this scenario, and when the
743: handler determines via C<lonnet>'s C<&allowed> function that a certain
744: action is not allowed, C<lonroles> is used as error handler. This
745: allows the user to select another role which may have permission to do
746: what they were trying to do. C<lonroles> can also be accessed via the
747: B<CRS> button in the Remote Control.
748:
749: =begin latex
750:
751: \begin{figure}
752: \begin{center}
753: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
754: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
755: \end{center}
756: \end{figure}
757:
758: =end latex
759:
760: =head2 Role Initialization
761:
762: 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 763:
764: =head1 INTRODUCTION
765:
766: This module enables a user to select what role he wishes to
767: operate under (instructor, student, teaching assistant, course
768: coordinator, etc). These roles are pre-established by the actions
769: of upper-level users.
770:
771: This is part of the LearningOnline Network with CAPA project
772: described at http://www.lon-capa.org.
773:
774: =head1 HANDLER SUBROUTINE
775:
776: This routine is called by Apache and mod_perl.
777:
778: =over 4
779:
780: =item *
781:
782: Roles Initialization (yes/no)
783:
784: =item *
785:
786: Get Error Message from Environment
787:
788: =item *
789:
790: Who is this?
791:
792: =item *
793:
794: Generate Page Output
795:
796: =item *
797:
798: Choice or no choice
799:
800: =item *
801:
802: Table
803:
804: =item *
805:
806: Privileges
807:
808: =back
809:
810: =cut
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