Annotation of loncom/auth/lonroles.pm, revision 1.89
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.89 ! www 4: # $Id: lonroles.pm,v 1.88 2004/03/09 21:01:55 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');
! 132: my $buttontext=&mt('Re-Enter Key');
! 133: my $message=&mt('Key Verification Failed').'<br /><a href="/adm/logout">'.
! 134: &mt('Logout').'</a>';
! 135: $r->print(<<ENDENTEREDKEY);
! 136: <head><title>Verifying Course Access Key</title>
! 137: </head>
! 138: <html>
! 139: $bodytag
! 140: <script>
! 141: $swinfo
! 142: </script>
! 143: <form method="post">
! 144: <input type="hidden" name="selectrole" value="1" />
! 145: <input type="hidden" name="$trolecode" value="1" />
! 146: $message
! 147: <input type="submit" value="$buttontext" />
! 148: </form>
! 149: </body></html>
! 150: ENDENTEREDKEY
! 151: return OK;
1.55 albertel 152: } else {
1.53 www 153: # print form to enter a new key
1.73 www 154: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 155: &Apache::loncommon::no_cache($r);
156: $r->send_http_header;
157: my $swinfo=&Apache::lonmenu::rawconfig();
158: my $bodytag=&Apache::loncommon::bodytag
159: ('Enter Access Key to Unlock this Course');
160: $r->print(<<ENDENTERKEY);
1.53 www 161: <head><title>Entering Course Access Key</title>
162: </head>
163: <html>
164: $bodytag
165: <script>
166: $swinfo
167: </script>
168: <form method="post">
1.89 ! www 169: <input type="hidden" name="selectrole" value="1" />
! 170: <input type="hidden" name="$trolecode" value="1" />
1.53 www 171: <input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" />
172: <input type="submit" value="Enter key" />
173: </form>
174: </body></html>
175: ENDENTERKEY
1.55 albertel 176: return OK;
177: }
178: }
179: }
1.87 www 180: &Apache::lonnet::log($ENV{'user.domain'},
181: $ENV{'user.name'},
182: $ENV{'user.home'},
183: "Role ".$trolecode);
1.56 www 184: my $tadv=0;
185: if (($trolecode!~/^st/) &&
186: ($trolecode!~/^ta/) &&
187: ($trolecode!~/^cm/)) { $tadv=1; }
188: &Apache::lonnet::appenv(
189: 'request.role' => $trolecode,
190: 'request.role.adv' => $tadv,
191: 'request.role.domain' => $cdom,
192: 'request.course.sec' => $csec);
1.72 www 193: my $msg=&mt('Entering course ...');
1.62 matthew 194:
1.55 albertel 195: if (($cnum) && ($role ne 'ca')) {
196: my ($furl,$ferr)=
197: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
198: if (($ENV{'form.orgurl'}) &&
199: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
1.67 albertel 200: my $dest=$ENV{'form.orgurl'};
1.71 albertel 201: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1.67 albertel 202: &Apache::lonnet::cleanenv();
1.69 albertel 203: }
1.67 albertel 204: $r->internal_redirect($dest);
1.55 albertel 205: return OK;
206: } else {
207: unless ($ENV{'request.course.id'}) {
208: &Apache::lonnet::appenv(
209: "request.course.id" => $cdom.'_'.$cnum);
1.61 www 210: $furl='/adm/roles?tryagain=1';
1.55 albertel 211: $msg=
1.72 www 212: '<h1><font color=red>'.
213: &mt('Could not initialize course at this time.').
214: '</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 215: }
1.58 bowersj2 216:
217: # Check to see if the user is a CC entering a course
218: # for the first time
219: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
220: if (substr($courseid, 0, 1) eq '/') {
221: $courseid = substr($courseid, 1);
222: }
223: $courseid =~ s/\//_/;
224: if ($role eq 'cc' && $ENV{'course.' . $courseid .
225: '.course.helper.not.run'}) {
226: $furl = "/adm/helper/course.initialization.helper";
227: }
1.62 matthew 228: #
229: # Send the user to the course they selected
1.78 sakharuk 230: &redirect_user($r,&mt('Entering Course'),
1.62 matthew 231: $furl,$msg);
1.20 www 232: return OK;
1.55 albertel 233: }
234: }
1.62 matthew 235: #
236: # Send the user to the construction space they selected
237: if ($role =~ /^(au|ca)$/) {
238: my $redirect_url = '/priv/';
239: if ($role eq 'au') {
240: $redirect_url.=$ENV{'user.name'};
241: } else {
242: $where =~ /\/(.*)$/;
243: $redirect_url .= $1;
244: }
245: $redirect_url .= '/';
1.78 sakharuk 246: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 247: $redirect_url);
248: return OK;
249: }
1.55 albertel 250: }
251: }
1.6 www 252: }
1.40 matthew 253: }
1.44 www 254:
1.10 www 255:
1.6 www 256: # =============================================================== No Roles Init
1.10 www 257:
1.73 www 258: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 259: &Apache::loncommon::no_cache($r);
1.10 www 260: $r->send_http_header;
261: return OK if $r->header_only;
262:
1.52 www 263: my $swinfo=&Apache::lonmenu::rawconfig();
1.41 www 264: my $bodytag=&Apache::loncommon::bodytag('User Roles');
1.82 www 265: my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_topic
266: ("General_Intro",&mt("Click here for help")).'</td><td>'.
267: &Apache::loncommon::help_open_faq(1,&mt('Click here for FAQ')).'</td><td>'.
268: &Apache::loncommon::help_open_bug('',&mt('Click here to report bugs')).'</td></tr></table>';
1.10 www 269: $r->print(<<ENDHEADER);
270: <html>
271: <head>
272: <title>LON-CAPA User Roles</title>
1.41 www 273: </head>
274: $bodytag
1.45 www 275: $helptag<br />
1.26 www 276: <script>
277: $swinfo
278: window.focus();
279: </script>
1.10 www 280: ENDHEADER
1.6 www 281:
1.2 www 282: # ------------------------------------------ Get Error Message from Environment
283:
284: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
1.12 www 285: if ($ENV{'user.error.msg'}) {
1.55 albertel 286: $r->log_reason(
287: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
1.12 www 288: }
1.1 harris41 289:
1.61 www 290: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 291:
1.61 www 292: my $advanced=$ENV{'user.adv'};
293: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
294: my $tryagain=$ENV{'form.tryagain'};
1.6 www 295:
1.2 www 296: # -------------------------------------------------------- Generate Page Output
1.6 www 297: # --------------------------------------------------------------- Error Header?
1.2 www 298: if ($error) {
299: $r->print("<h1>LON-CAPA Access Control</h1>");
1.4 www 300: $r->print("<hr><pre>Access : ".
301: Apache::lonnet::plaintext($priv)."\n");
302: $r->print("Resource: $fn\n");
303: $r->print("Action : $msg\n</pre><hr>");
1.2 www 304: } else {
1.25 www 305: if ($ENV{'user.error.msg'}) {
306: $r->print(
1.72 www 307: '<h3><font color=red>'.
308: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 309: }
1.2 www 310: }
1.6 www 311: # -------------------------------------------------------- Choice or no choice?
1.2 www 312: if ($nochoose) {
1.6 www 313: if ($advanced) {
1.72 www 314: $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6 www 315: } else {
1.72 www 316: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
317: &mt('This resource might be part of'));
1.55 albertel 318: if ($ENV{'request.course.id'}) {
1.72 www 319: $r->print(&mt(' another'));
1.55 albertel 320: } else {
1.72 www 321: $r->print(&mt(' a certain'));
1.55 albertel 322: }
1.72 www 323: $r->print(&mt(' course.').'</body></html>');
1.55 albertel 324: return OK;
1.6 www 325: }
326: } else {
327: if ($advanced) {
1.72 www 328: $r->print(&mt("Your home server is ").
1.55 albertel 329: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
330: ($ENV{'user.name'},$ENV{'user.domain'})}.
331: "<br />\n");
1.72 www 332: $r->print(&mt(
333: "Author and Co-Author roles may not be available on servers other than your home server."));
1.17 www 334: }
1.18 www 335: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
336: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 337: }
1.84 www 338: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.6 www 339: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
340: $r->print('<input type=hidden name=selectrole value=1>');
341: }
1.63 www 342: if ($ENV{'user.adv'}) {
343: $r->print(
1.72 www 344: '<br />'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.63 www 345: if ($ENV{'form.showall'}) { $r->print(' checked'); }
1.72 www 346: $r->print('><input type=submit value="'.&mt('Display').'">');
1.63 www 347: }
1.4 www 348:
1.75 albertel 349: my (%roletext,%sortrole,%roleclass);
1.84 www 350: my $countactive=0;
351: my $inrole=0;
352: my $possiblerole='';
1.3 albertel 353: foreach $envkey (sort keys %ENV) {
1.35 matthew 354: my $button = 1;
1.49 www 355: my $switchserver='';
1.75 albertel 356: my $roletext;
357: my $sortkey;
1.2 www 358: if ($envkey=~/^user\.role\./) {
1.40 matthew 359: my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
1.46 matthew 360: next if (!defined($role) || $role eq '');
1.4 www 361: my $where=join('.',@pwhere);
1.6 www 362: my $trolecode=$role.'.'.$where;
1.4 www 363: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
364: my $tremark='';
365: my $tstatus='is';
366: my $tpstart=' ';
367: my $tpend=' ';
1.47 www 368: my $tfont='#000000';
1.4 www 369: if ($tstart) {
370: if ($tstart>$then) {
1.35 matthew 371: $tstatus='future';
372: if ($tstart<$now) { $tstatus='will'; }
1.4 www 373: }
1.74 www 374: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 375: }
376: if ($tend) {
1.23 www 377: if ($tend<$then) {
1.35 matthew 378: $tstatus='expired';
1.23 www 379: } elsif ($tend<$now) {
1.35 matthew 380: $tstatus='will_not';
1.23 www 381: }
1.74 www 382: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 383: }
1.6 www 384: if ($ENV{'request.role'} eq $trolecode) {
385: $tstatus='selected';
386: }
1.4 www 387: my $tbg;
1.35 matthew 388: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
389: ($ENV{'form.showall'})) {
390: if ($tstatus eq 'is') {
391: $tbg='#77FF77';
1.47 www 392: $tfont='#003300';
1.84 www 393: $possiblerole=$trolecode;
394: $countactive++;
1.35 matthew 395: } elsif ($tstatus eq 'future') {
396: $tbg='#FFFF77';
1.49 www 397: $button=0;
1.35 matthew 398: } elsif ($tstatus eq 'will') {
399: $tbg='#FFAA77';
1.72 www 400: $tremark.=&mt('Active at next login. ');
1.35 matthew 401: } elsif ($tstatus eq 'expired') {
402: $tbg='#FF7777';
1.47 www 403: $tfont='#330000';
1.49 www 404: $button=0;
1.35 matthew 405: } elsif ($tstatus eq 'will_not') {
406: $tbg='#AAFF77';
1.72 www 407: $tremark.=&mt('Expired after logout. ');
1.35 matthew 408: } elsif ($tstatus eq 'selected') {
409: $tbg='#11CC55';
1.47 www 410: $tfont='#002200';
1.84 www 411: $inrole=1;
1.86 albertel 412: $countactive++;
1.72 www 413: $tremark.=&mt('Currently selected. ');
1.35 matthew 414: }
415: my $trole;
416: if ($role =~ /^cr\//) {
417: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.72 www 418: $tremark.='<br>'.&mt('Defined by ').$rauthor.
419: &mt(' at ').$rdomain.'.';
1.35 matthew 420: $trole=$rrole;
1.8 www 421: } else {
1.35 matthew 422: $trole=Apache::lonnet::plaintext($role);
423: }
424: my $ttype;
425: my $twhere;
426: my ($tdom,$trest,$tsection)=
427: split(/\//,Apache::lonnet::declutter($where));
428: # First, Co-Authorship roles
429: if ($role eq 'ca') {
1.39 stredwic 430: my $home = &Apache::lonnet::homeserver($trest,$tdom);
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/'.$trest);
1.49 www 441: }
1.35 matthew 442: #next if ($home eq 'no_host');
443: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 444: $ttype='Construction Space';
1.72 www 445: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
446: ': '.$tdom.'<br />'.
447: ' '.&mt('Server').': '.$home;
1.35 matthew 448: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 449: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 450: $sortkey=$role."$trest:$tdom";
1.35 matthew 451: } elsif ($role eq 'au') {
452: # Authors
453: my $home = &Apache::lonnet::homeserver
1.39 stredwic 454: ($ENV{'user.name'},$ENV{'user.domain'});
1.83 albertel 455: my $allowed=0;
456: my @ids=&Apache::lonnet::current_machine_ids();
457: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
458: if (!$allowed) {
1.49 www 459: $button=0;
1.51 www 460: $switchserver=&Apache::lonnet::escape('http://'.
461: $Apache::lonnet::hostname{$home}.
462: '/adm/login?domain='.$ENV{'user.domain'}.
463: '&username='.$ENV{'user.name'}.
464: '&firsturl=/priv/'.$ENV{'user.name'});
1.49 www 465: }
1.35 matthew 466: #next if ($home eq 'no_host');
467: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 468: $ttype='Construction Space';
1.72 www 469: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
470: ': '.$home;
1.35 matthew 471: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 472: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$ENV{'user.name'}.'/');
1.75 albertel 473: $sortkey=$role;
1.35 matthew 474: } elsif ($trest) {
1.78 sakharuk 475: $ttype='Course';
1.35 matthew 476: if ($tsection) {
1.72 www 477: $ttype.='<br>'.&mt('Section/Group').': '.$tsection;
1.37 albertel 478: }
1.35 matthew 479: my $tcourseid=$tdom.'_'.$trest;
480: if ($ENV{'course.'.$tcourseid.'.description'}) {
1.47 www 481: $twhere=$ENV{'course.'.$tcourseid.'.description'};
1.80 albertel 482: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 483: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 484: $twhere.=' <font size="-2">'.
1.72 www 485: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 486: '</font>';
1.55 albertel 487: }
1.8 www 488: } else {
1.35 matthew 489: my %newhash=Apache::lonnet::coursedescription
490: ($tcourseid);
491: if (%newhash) {
1.80 albertel 492: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 493: "\0".$envkey;
1.49 www 494: $twhere=$newhash{'description'}.
495: ' <font size="-2">'.
1.72 www 496: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 497: '</font>';
1.35 matthew 498: } else {
1.72 www 499: $twhere=&mt('Currently not available');
1.35 matthew 500: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 501: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 502: }
1.8 www 503: }
1.72 www 504: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 505: } elsif ($tdom) {
1.78 sakharuk 506: $ttype='Domain';
1.35 matthew 507: $twhere=$tdom;
1.75 albertel 508: $sortkey=$role.$twhere;
1.35 matthew 509: } else {
1.78 sakharuk 510: $ttype='System';
1.72 www 511: $twhere=&mt('system wide');
1.75 albertel 512: $sortkey=$role.$twhere;
1.13 www 513: }
1.35 matthew 514:
1.75 albertel 515: $roletext.='<tr bgcolor='.$tbg.'>';
1.35 matthew 516: unless ($nochoose) {
517: if (!$button) {
1.49 www 518: if ($switchserver) {
1.75 albertel 519: $roletext.='<td><a href="/adm/logout?handover='.
520: $switchserver.'">'.&mt('Switch Server').'</a></td>';
1.49 www 521: } else {
1.75 albertel 522: $roletext.=('<td> </td>');
1.49 www 523: }
1.35 matthew 524: } elsif ($tstatus eq 'is') {
1.75 albertel 525: $roletext.=('<td><input type=submit value="'.
1.72 www 526: &mt('Select').'" name="'.
1.35 matthew 527: $trolecode.'"></td>');
1.61 www 528: } elsif ($tryagain) {
1.75 albertel 529: $roletext.=
530: '<td><input type=submit value="'.
531: &mt('Try Selecting Again').'" name="'.$trolecode.'"></td>';
1.61 www 532: } elsif ($advanced) {
1.75 albertel 533: $roletext.=
534: '<td><input type=submit value="'.
535: &mt('Re-Initialize').'" name="'.$trolecode.'"></td>';
1.35 matthew 536: } else {
1.75 albertel 537: $roletext.='<td> </td>';
1.35 matthew 538: }
1.6 www 539: }
1.57 www 540: $tremark.=&Apache::lonannounce::showday(time,1,
541: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
542:
1.75 albertel 543: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.47 www 544: '</font></td><td><font color="'.$tfont.'">'.$ttype.
545: '</font></td><td><font color="'.$tfont.'">'.$twhere.
546: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
547: '</font></td><td><font color="'.$tfont.'">'.$tpend.
548: '</font></td><td><font color="'.$tfont.'">'.$tremark.
1.75 albertel 549: ' </font></td></tr>'."\n";
550: $roletext{$envkey}=$roletext;
551: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
552: $sortrole{$sortkey}=$envkey;
553: $roleclass{$envkey}=$ttype;
1.55 albertel 554: }
1.4 www 555: }
1.75 albertel 556: }
1.84 www 557: # No active roles
558: if ($countactive==0) {
559: if ($inrole) {
560: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
561: } else {
562: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
563: }
564: $r->print('</form></body></html>');
565: return OK;
566: # Is there only one choice?
1.88 www 567: } elsif (($countactive==1) && ($ENV{'request.role'} eq 'cm')) {
1.84 www 568: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
569: '<input type="hidden" name="'.$possiblerole.'" value="1" />');
570: $r->print("</form>\n");
571: $r->rflush();
572: $r->print('<script>document.forms.rolechoice.submit();</script>');
573: $r->print('</body></html>');
574: return OK;
575: }
576: # More than one possible role
577: # ----------------------------------------------------------------------- Table
578: unless (($advanced) || ($nochoose)) {
579: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
580: }
581: $r->print('<br /><table><tr>');
582: unless ($nochoose) { $r->print('<th> </th>'); }
583: $r->print('<th>'.&mt('User Role').'</th><th colspan=2>'.&mt('Extent').
584: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th><th>'.
585: &mt('Remark').'</th></tr>'."\n");
1.76 albertel 586: my $doheaders=-1;
1.78 sakharuk 587: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 588: my $haverole=0;
1.75 albertel 589: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
590: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 591: $haverole=1;
1.75 albertel 592: }
1.76 albertel 593: }
594: if ($haverole) { $doheaders++; }
595: }
1.78 sakharuk 596: foreach my $type ('Construction Space','Course','Domain','System') {
1.76 albertel 597: my $output;
598: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
599: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.78 sakharuk 600: $output.=&mt($roletext{$sortrole{$which}});
1.76 albertel 601: }
602: }
603: if ($output) {
604: if ($doheaders > 0) {
1.77 albertel 605: $r->print("<tr bgcolor='#BBffBB'>".
1.79 sakharuk 606: "<td align='center' colspan='7'>".&mt($type)."</td>");
1.76 albertel 607: }
608: $r->print($output);
1.75 albertel 609: }
1.4 www 610: }
1.14 www 611: my $tremark='';
1.47 www 612: my $tfont='#003300';
1.14 www 613: if ($ENV{'request.role'} eq 'cm') {
1.19 www 614: $r->print('<tr bgcolor="#11CC55">');
1.72 www 615: $tremark=&mt('Currently selected. ');
1.47 www 616: $tfont='#002200';
1.14 www 617: } else {
618: $r->print('<tr bgcolor="#77FF77">');
619: }
620: unless ($nochoose) {
1.55 albertel 621: if ($ENV{'request.role'} ne 'cm') {
1.72 www 622: $r->print('<td><input type=submit value="'.
623: &mt('Select').'" name="cm"></td>');
1.55 albertel 624: } else {
625: $r->print('<td> </td>');
626: }
1.14 www 627: }
1.72 www 628: $r->print('<td colspan=5><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 629: '</font></td><td><font color="'.$tfont.'">'.$tremark.
630: ' </font></td></tr>'."\n");
1.4 www 631:
632: $r->print('</table>');
633: unless ($nochoose) {
634: $r->print("</form>\n");
635: }
1.22 harris41 636: # ------------------------------------------------------------ Privileges Info
1.55 albertel 637: if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) {
638: $r->print('<hr><h2>Current Privileges</h2>');
1.4 www 639:
1.55 albertel 640: foreach $envkey (sort keys %ENV) {
641: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
642: my $where=$envkey;
643: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
644: my $ttype;
645: my $twhere;
646: my ($tdom,$trest,$tsec)=
647: split(/\//,Apache::lonnet::declutter($where));
648: if ($trest) {
649: if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
650: $ttype='Construction Space';
651: $twhere='User: '.$trest.', Domain: '.$tdom;
652: } else {
653: $ttype='Course';
654: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
655: if ($tsec) {
656: $twhere.=' (Section/Group: '.$tsec.')';
657: }
658: }
659: } elsif ($tdom) {
660: $ttype='Domain';
661: $twhere=$tdom;
662: } else {
663: $ttype='System';
664: $twhere='/';
665: }
666: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
667: foreach (sort split(/:/,$ENV{$envkey})) {
668: if ($_) {
669: my ($prv,$restr)=split(/\&/,$_);
670: my $trestr='';
671: if ($restr ne 'F') {
672: my $i;
673: $trestr.=' (';
674: for ($i=0;$i<length($restr);$i++) {
675: $trestr.=
676: Apache::lonnet::plaintext(substr($restr,$i,1));
677: if ($i<length($restr)-1) { $trestr.=', '; }
678: }
679: $trestr.=')';
680: }
681: $r->print('<li>'.
682: Apache::lonnet::plaintext($prv).$trestr.
683: '</li>');
684: }
685: }
686: $r->print('</ul>');
687: }
688: }
1.4 www 689: }
1.66 www 690: $r->print(&Apache::lonnet::getannounce());
1.65 www 691: if ($advanced) {
692: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 693: $r->dir_config('lonVersion').'</i><br />'.
694: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 695: }
1.1 harris41 696: $r->print("</body></html>\n");
697: return OK;
698: }
699:
700: 1;
701: __END__
1.32 harris41 702:
703: =head1 NAME
704:
705: Apache::lonroles - User Roles Screen
706:
707: =head1 SYNOPSIS
708:
709: Invoked by /etc/httpd/conf/srm.conf:
710:
711: <Location /adm/roles>
712: PerlAccessHandler Apache::lonacc
713: SetHandler perl-script
714: PerlHandler Apache::lonroles
715: ErrorDocument 403 /adm/login
716: ErrorDocument 500 /adm/errorhandler
717: </Location>
1.64 bowersj2 718:
719: =head1 OVERVIEW
720:
721: =head2 Choosing Roles
722:
723: C<lonroles> is a handler that allows a user to switch roles in
724: mid-session. LON-CAPA attempts to work with "No Role Specified", the
725: default role that a user has before selecting a role, as widely as
726: possible, but certain handlers for example need specification which
727: course they should act on, etc. Both in this scenario, and when the
728: handler determines via C<lonnet>'s C<&allowed> function that a certain
729: action is not allowed, C<lonroles> is used as error handler. This
730: allows the user to select another role which may have permission to do
731: what they were trying to do. C<lonroles> can also be accessed via the
732: B<CRS> button in the Remote Control.
733:
734: =begin latex
735:
736: \begin{figure}
737: \begin{center}
738: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
739: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
740: \end{center}
741: \end{figure}
742:
743: =end latex
744:
745: =head2 Role Initialization
746:
747: 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 748:
749: =head1 INTRODUCTION
750:
751: This module enables a user to select what role he wishes to
752: operate under (instructor, student, teaching assistant, course
753: coordinator, etc). These roles are pre-established by the actions
754: of upper-level users.
755:
756: This is part of the LearningOnline Network with CAPA project
757: described at http://www.lon-capa.org.
758:
759: =head1 HANDLER SUBROUTINE
760:
761: This routine is called by Apache and mod_perl.
762:
763: =over 4
764:
765: =item *
766:
767: Roles Initialization (yes/no)
768:
769: =item *
770:
771: Get Error Message from Environment
772:
773: =item *
774:
775: Who is this?
776:
777: =item *
778:
779: Generate Page Output
780:
781: =item *
782:
783: Choice or no choice
784:
785: =item *
786:
787: Table
788:
789: =item *
790:
791: Privileges
792:
793: =back
794:
795: =cut
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