Annotation of loncom/auth/lonroles.pm, revision 1.137
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.137 ! raeburn 4: # $Id: lonroles.pm,v 1.136 2005/11/15 21:39:28 raeburn Exp $
1.31 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.32 harris41 28: ###
1.22 harris41 29:
1.1 harris41 30: package Apache::lonroles;
31:
32: use strict;
1.118 albertel 33: use Apache::lonnet;
1.7 www 34: use Apache::lonuserstate();
1.1 harris41 35: use Apache::Constants qw(:common);
1.2 www 36: use Apache::File();
1.26 www 37: use Apache::lonmenu;
1.29 albertel 38: use Apache::loncommon;
1.104 raeburn 39: use Apache::lonhtmlcommon;
1.57 www 40: use Apache::lonannounce;
1.72 www 41: use Apache::lonlocal;
1.120 albertel 42: use GDBM_File;
1.1 harris41 43:
1.62 matthew 44: sub redirect_user {
1.95 albertel 45: my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62 matthew 46: $msg = $title if (! defined($msg));
1.73 www 47: &Apache::loncommon::content_type($r,'text/html');
1.62 matthew 48: &Apache::loncommon::no_cache($r);
49: $r->send_http_header;
50: my $swinfo=&Apache::lonmenu::rawconfig();
1.96 albertel 51: my $navwindow;
1.95 albertel 52: if ($launch_nav eq 'on') {
1.128 albertel 53: $navwindow.=&Apache::lonnavmaps::launch_win('now',undef,undef,
54: ($url eq '/adm/whatsnew'));
1.96 albertel 55: } else {
56: $navwindow.=&Apache::lonnavmaps::close();
1.95 albertel 57: }
1.62 matthew 58: my $bodytag=&Apache::loncommon::bodytag('Switching Role');
1.92 www 59: # Note to style police:
60: # This must only replace the spaces, nothing else, or it bombs elsewhere.
61: $url=~s/ /\%20/g;
1.93 albertel 62: $r->print(<<ENDREDIR);
1.62 matthew 63: <head><title>$title</title>
64: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$url">
65: </head>
66: <html>
67: $bodytag
1.96 albertel 68: <script type="text/javascript">
1.62 matthew 69: $swinfo
70: </script>
1.96 albertel 71: $navwindow
1.62 matthew 72: <h1>$msg</h1>
1.95 albertel 73: <a href="$url">Continue</a>
1.62 matthew 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;
1.118 albertel 85: my $then=$env{'user.login.time'};
1.6 www 86: my $envkey;
1.107 raeburn 87: my %dcroles = ();
88: my $numdc = &check_fordc(\%dcroles,$then);
1.10 www 89:
1.6 www 90: # ================================================================== Roles Init
1.118 albertel 91: if ($env{'form.selectrole'}) {
1.134 www 92: if ($env{'form.newrole'}) {
93: $env{'form.'.$env{'form.newrole'}}=1;
94: }
1.118 albertel 95: if ($env{'request.course.id'}) {
96: my %temp=('logout_'.$env{'request.course.id'} => time);
1.33 www 97: &Apache::lonnet::put('email_status',\%temp);
1.118 albertel 98: &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100 albertel 99: }
1.55 albertel 100: &Apache::lonnet::appenv("request.course.id" => '',
101: "request.course.fn" => '',
102: "request.course.uri" => '',
103: "request.course.sec" => '',
104: "request.role" => 'cm',
1.118 albertel 105: "request.role.adv" => $env{'user.adv'},
106: "request.role.domain" => $env{'user.domain'});
1.106 raeburn 107:
1.110 raeburn 108: # Check if user is a DC trying to enter a course and needs privs to be created
1.107 raeburn 109: if ($numdc > 0) {
1.118 albertel 110: foreach my $envkey (keys %env) {
1.107 raeburn 111: if ($envkey =~ m-^form\.cc\./(\w+)/(\w+)$-) {
112: if ($dcroles{$1}) {
1.109 raeburn 113: my $cckey = 'user.role.cc./'.$1.'/'.$2;
1.110 raeburn 114: &check_privs($cckey,$then,$now);
1.107 raeburn 115: }
116: last;
117: }
118: }
119: }
120:
1.118 albertel 121: foreach $envkey (keys %env) {
1.40 matthew 122: next if ($envkey!~/^user\.role\./);
1.102 raeburn 123: my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
124: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118 albertel 125: if ($env{'form.'.$trolecode}) {
1.55 albertel 126: if ($tstatus eq 'is') {
127: $where=~s/^\///;
128: my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137 ! raeburn 129: # check for course groups
! 130: my %coursegroups = &Apache::lonnet::get_active_groups(
! 131: $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
! 132: my $cgrps = join(':',keys(%coursegroups));
! 133:
1.111 albertel 134: # store role if recent_role list being kept
1.118 albertel 135: if ($env{'environment.recentroles'}) {
1.111 albertel 136: &Apache::lonhtmlcommon::store_recent('roles',
137: $trolecode,' ');
138: }
139:
140:
1.53 www 141: # check for keyed access
1.55 albertel 142: if (($role eq 'st') &&
1.118 albertel 143: ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89 www 144: # who is key authority?
145: my $authdom=$cdom;
146: my $authnum=$cnum;
1.118 albertel 147: if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89 www 148: ($authnum,$authdom)=
1.118 albertel 149: split(/\W/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89 www 150: }
151: # check with key authority
152: unless (&Apache::lonnet::validate_access_key(
1.118 albertel 153: $env{'environment.key.'.$cdom.'_'.$cnum},
1.89 www 154: $authdom,$authnum)) {
1.53 www 155: # there is no valid key
1.118 albertel 156: if ($env{'form.newkey'}) {
1.53 www 157: # student attempts to register a new key
1.89 www 158: &Apache::loncommon::content_type($r,'text/html');
159: &Apache::loncommon::no_cache($r);
160: $r->send_http_header;
161: my $swinfo=&Apache::lonmenu::rawconfig();
162: my $bodytag=&Apache::loncommon::bodytag
163: ('Verifying Access Key to Unlock this Course');
1.90 www 164: my $buttontext=&mt('Enter Course');
165: my $message=&mt('Successfully registered key');
166: my $assignresult=
167: &Apache::lonnet::assign_access_key(
1.118 albertel 168: $env{'form.newkey'},
1.90 www 169: $authdom,$authnum,
1.91 www 170: $cdom,$cnum,
1.118 albertel 171: $env{'user.domain'},
172: $env{'user.name'},
1.90 www 173: 'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
174: $trolecode);
175: unless ($assignresult eq 'ok') {
176: $assignresult=~s/^error\:\s*//;
177: $message=&mt($assignresult).
178: '<br /><a href="/adm/logout">'.
1.89 www 179: &mt('Logout').'</a>';
1.90 www 180: $buttontext=&mt('Re-Enter Key');
181: }
1.89 www 182: $r->print(<<ENDENTEREDKEY);
183: <head><title>Verifying Course Access Key</title>
184: </head>
185: <html>
186: $bodytag
187: <script>
188: $swinfo
189: </script>
190: <form method="post">
191: <input type="hidden" name="selectrole" value="1" />
192: <input type="hidden" name="$trolecode" value="1" />
1.90 www 193: <font size="+2">$message</font><br />
1.89 www 194: <input type="submit" value="$buttontext" />
195: </form>
196: </body></html>
197: ENDENTEREDKEY
198: return OK;
1.55 albertel 199: } else {
1.53 www 200: # print form to enter a new key
1.73 www 201: &Apache::loncommon::content_type($r,'text/html');
1.55 albertel 202: &Apache::loncommon::no_cache($r);
203: $r->send_http_header;
204: my $swinfo=&Apache::lonmenu::rawconfig();
205: my $bodytag=&Apache::loncommon::bodytag
206: ('Enter Access Key to Unlock this Course');
207: $r->print(<<ENDENTERKEY);
1.53 www 208: <head><title>Entering Course Access Key</title>
209: </head>
210: <html>
211: $bodytag
212: <script>
213: $swinfo
214: </script>
215: <form method="post">
1.89 www 216: <input type="hidden" name="selectrole" value="1" />
217: <input type="hidden" name="$trolecode" value="1" />
1.118 albertel 218: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53 www 219: <input type="submit" value="Enter key" />
220: </form>
221: </body></html>
222: ENDENTERKEY
1.55 albertel 223: return OK;
224: }
225: }
226: }
1.118 albertel 227: &Apache::lonnet::log($env{'user.domain'},
228: $env{'user.name'},
229: $env{'user.home'},
1.87 www 230: "Role ".$trolecode);
1.101 albertel 231:
1.56 www 232: &Apache::lonnet::appenv(
1.101 albertel 233: 'request.role' => $trolecode,
1.56 www 234: 'request.role.domain' => $cdom,
1.137 ! raeburn 235: 'request.course.sec' => $csec,
! 236: 'request.course.groups' => $cgrps);
1.101 albertel 237: my $tadv=0;
1.72 www 238: my $msg=&mt('Entering course ...');
1.62 matthew 239:
1.125 www 240: if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.55 albertel 241: my ($furl,$ferr)=
242: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118 albertel 243: if (($env{'form.orgurl'}) &&
244: ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
245: my $dest=$env{'form.orgurl'};
1.117 albertel 246: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
247: &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.67 albertel 248: $r->internal_redirect($dest);
1.55 albertel 249: return OK;
250: } else {
1.118 albertel 251: unless ($env{'request.course.id'}) {
1.55 albertel 252: &Apache::lonnet::appenv(
253: "request.course.id" => $cdom.'_'.$cnum);
1.61 www 254: $furl='/adm/roles?tryagain=1';
1.55 albertel 255: $msg=
1.131 albertel 256: '<h1><font color="red">'.
1.72 www 257: &mt('Could not initialize course at this time.').
258: '</font></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55 albertel 259: }
1.117 albertel 260: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
261: &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.58 bowersj2 262:
263: # Check to see if the user is a CC entering a course
264: # for the first time
265: my (undef, undef, $role, $courseid) = split(/\./, $envkey);
266: if (substr($courseid, 0, 1) eq '/') {
267: $courseid = substr($courseid, 1);
268: }
269: $courseid =~ s/\//_/;
1.118 albertel 270: if ($role eq 'cc' && $env{'course.' . $courseid .
1.58 bowersj2 271: '.course.helper.not.run'}) {
272: $furl = "/adm/helper/course.initialization.helper";
1.124 albertel 273: # Send the user to the course they selected
274: } elsif (($env{'request.course.fn'})
275: && ($role eq 'cc' && ($env{'environment.course_init_display'} ne 'firstres'))) {
276: $msg = &mt('Entering course ....');
277: &redirect_user($r,&mt('New in course'),
278: '/adm/whatsnew',$msg,
279: $env{'environment.remotenavmap'});
280: return OK;
1.58 bowersj2 281: }
1.124 albertel 282: &redirect_user($r,&mt('Entering Course'),
1.95 albertel 283: $furl,$msg,
1.118 albertel 284: $env{'environment.remotenavmap'});
1.124 albertel 285: return OK;
1.55 albertel 286: }
287: }
1.62 matthew 288: #
289: # Send the user to the construction space they selected
1.125 www 290: if ($role =~ /^(au|ca|aa)$/) {
1.62 matthew 291: my $redirect_url = '/priv/';
292: if ($role eq 'au') {
1.118 albertel 293: $redirect_url.=$env{'user.name'};
1.62 matthew 294: } else {
295: $where =~ /\/(.*)$/;
296: $redirect_url .= $1;
297: }
298: $redirect_url .= '/';
1.78 sakharuk 299: &redirect_user($r,&mt('Entering Construction Space'),
1.62 matthew 300: $redirect_url);
301: return OK;
302: }
1.104 raeburn 303: if ($role eq 'dc') {
1.108 raeburn 304: my $redirect_url = '/adm/menu/';
305: &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104 raeburn 306: $redirect_url);
1.108 raeburn 307: return OK;
1.104 raeburn 308: }
1.55 albertel 309: }
310: }
1.6 www 311: }
1.40 matthew 312: }
1.44 www 313:
1.10 www 314:
1.6 www 315: # =============================================================== No Roles Init
1.10 www 316:
1.73 www 317: &Apache::loncommon::content_type($r,'text/html');
1.30 albertel 318: &Apache::loncommon::no_cache($r);
1.10 www 319: $r->send_http_header;
320: return OK if $r->header_only;
321:
1.52 www 322: my $swinfo=&Apache::lonmenu::rawconfig();
1.41 www 323: my $bodytag=&Apache::loncommon::bodytag('User Roles');
1.134 www 324: my $standby=&mt('Role selected. Please stand by.');
1.135 albertel 325: $standby=~s/\n/\\n/g;
1.94 albertel 326: my $helptag='<table><tr><td>'.&Apache::loncommon::help_open_menu('','General Intro','General_Intro','User Roles',1,undef,undef,undef,undef,,&mt("Click here for help")).'</td></td></tr></table>';
1.10 www 327: $r->print(<<ENDHEADER);
328: <html>
329: <head>
330: <title>LON-CAPA User Roles</title>
1.41 www 331: </head>
332: $bodytag
1.45 www 333: $helptag<br />
1.26 www 334: <script>
335: $swinfo
336: window.focus();
1.134 www 337:
338: active=true;
339:
340: function enterrole (thisform,rolecode,buttonname) {
341: if (active) {
342: active=false;
343: document.title='$standby';
344: window.status='$standby';
345: thisform.newrole.value=rolecode;
346: thisform.submit();
347: } else {
348: alert('$standby');
349: }
350: }
1.26 www 351: </script>
1.10 www 352: ENDHEADER
1.6 www 353:
1.2 www 354: # ------------------------------------------ Get Error Message from Environment
355:
1.118 albertel 356: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
357: if ($env{'user.error.msg'}) {
1.55 albertel 358: $r->log_reason(
1.118 albertel 359: "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12 www 360: }
1.1 harris41 361:
1.61 www 362: # ------------------------------------------------- Can this user re-init, etc?
1.6 www 363:
1.118 albertel 364: my $advanced=$env{'user.adv'};
1.61 www 365: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118 albertel 366: my $tryagain=$env{'form.tryagain'};
1.6 www 367:
1.2 www 368: # -------------------------------------------------------- Generate Page Output
1.6 www 369: # --------------------------------------------------------------- Error Header?
1.2 www 370: if ($error) {
371: $r->print("<h1>LON-CAPA Access Control</h1>");
1.126 www 372: $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>Access : ".
1.4 www 373: Apache::lonnet::plaintext($priv)."\n");
1.115 albertel 374: $r->print("Resource: ".&Apache::lonenc::check_encrypt($fn)."\n");
1.120 albertel 375: $r->print("Action : $msg\n</pre><hr />");
376: my $url=$fn;
377: my $last;
378: if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
379: &GDBM_READER(),0640)) {
380: $last=$hash{'last_known'};
381: untie(%hash);
382: }
383: if ($last) { $fn.='?symb='.&Apache::lonnet::escape($last); }
384:
385: &Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
386: &Apache::lonenc::check_encrypt($fn));
1.2 www 387: } else {
1.118 albertel 388: if ($env{'user.error.msg'}) {
1.25 www 389: $r->print(
1.131 albertel 390: '<h3><font color="red">'.
1.72 www 391: &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25 www 392: }
1.2 www 393: }
1.6 www 394: # -------------------------------------------------------- Choice or no choice?
1.2 www 395: if ($nochoose) {
1.6 www 396: if ($advanced) {
1.72 www 397: $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6 www 398: } else {
1.72 www 399: $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
400: &mt('This resource might be part of'));
1.118 albertel 401: if ($env{'request.course.id'}) {
1.72 www 402: $r->print(&mt(' another'));
1.55 albertel 403: } else {
1.72 www 404: $r->print(&mt(' a certain'));
1.55 albertel 405: }
1.72 www 406: $r->print(&mt(' course.').'</body></html>');
1.55 albertel 407: return OK;
1.6 www 408: }
409: } else {
410: if ($advanced) {
1.72 www 411: $r->print(&mt("Your home server is ").
1.55 albertel 412: $Apache::lonnet::hostname{&Apache::lonnet::homeserver
1.118 albertel 413: ($env{'user.name'},$env{'user.domain'})}.
1.55 albertel 414: "<br />\n");
1.72 www 415: $r->print(&mt(
1.126 www 416: "Author and Co-Author roles are not available on servers other than their respective home servers."));
1.17 www 417: }
1.18 www 418: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
419: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6 www 420: }
1.84 www 421: $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116 albertel 422: $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
423: $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134 www 424: $r->print('<input type="hidden" name="newrole" value="" />');
1.6 www 425: }
1.118 albertel 426: if ($env{'user.adv'}) {
1.63 www 427: $r->print(
1.116 albertel 428: '<br /><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.118 albertel 429: if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.116 albertel 430: $r->print(' /></label><input type="submit" value="'.&mt('Display').'" />');
1.63 www 431: }
1.4 www 432:
1.75 albertel 433: my (%roletext,%sortrole,%roleclass);
1.84 www 434: my $countactive=0;
435: my $inrole=0;
436: my $possiblerole='';
1.118 albertel 437: foreach $envkey (sort keys %env) {
1.35 matthew 438: my $button = 1;
1.49 www 439: my $switchserver='';
1.75 albertel 440: my $roletext;
441: my $sortkey;
1.2 www 442: if ($envkey=~/^user\.role\./) {
1.102 raeburn 443: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
444: &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136 raeburn 445: next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102 raeburn 446: $tremark='';
447: $tpstart=' ';
448: $tpend=' ';
449: $tfont='#000000';
1.4 www 450: if ($tstart) {
1.74 www 451: $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4 www 452: }
453: if ($tend) {
1.74 www 454: $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4 www 455: }
1.118 albertel 456: if ($env{'request.role'} eq $trolecode) {
1.6 www 457: $tstatus='selected';
458: }
1.4 www 459: my $tbg;
1.35 matthew 460: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
1.118 albertel 461: ($env{'form.showall'})) {
1.35 matthew 462: if ($tstatus eq 'is') {
463: $tbg='#77FF77';
1.47 www 464: $tfont='#003300';
1.84 www 465: $possiblerole=$trolecode;
466: $countactive++;
1.35 matthew 467: } elsif ($tstatus eq 'future') {
468: $tbg='#FFFF77';
1.49 www 469: $button=0;
1.35 matthew 470: } elsif ($tstatus eq 'will') {
471: $tbg='#FFAA77';
1.72 www 472: $tremark.=&mt('Active at next login. ');
1.35 matthew 473: } elsif ($tstatus eq 'expired') {
474: $tbg='#FF7777';
1.47 www 475: $tfont='#330000';
1.49 www 476: $button=0;
1.35 matthew 477: } elsif ($tstatus eq 'will_not') {
478: $tbg='#AAFF77';
1.72 www 479: $tremark.=&mt('Expired after logout. ');
1.35 matthew 480: } elsif ($tstatus eq 'selected') {
481: $tbg='#11CC55';
1.47 www 482: $tfont='#002200';
1.84 www 483: $inrole=1;
1.86 albertel 484: $countactive++;
1.72 www 485: $tremark.=&mt('Currently selected. ');
1.35 matthew 486: }
487: my $trole;
488: if ($role =~ /^cr\//) {
489: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132 albertel 490: if ($tremark) { $tremark.='<br />'; }
491: $tremark.=&mt('Defined by ').$rauthor.
1.72 www 492: &mt(' at ').$rdomain.'.';
1.35 matthew 493: $trole=$rrole;
1.8 www 494: } else {
1.35 matthew 495: $trole=Apache::lonnet::plaintext($role);
496: }
497: my $ttype;
498: my $twhere;
499: my ($tdom,$trest,$tsection)=
500: split(/\//,Apache::lonnet::declutter($where));
501: # First, Co-Authorship roles
1.125 www 502: if (($role eq 'ca') || ($role eq 'aa')) {
1.39 stredwic 503: my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83 albertel 504: my $allowed=0;
505: my @ids=&Apache::lonnet::current_machine_ids();
506: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
507: if (!$allowed) {
1.49 www 508: $button=0;
1.130 albertel 509: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 510: }
1.35 matthew 511: #next if ($home eq 'no_host');
512: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 513: $ttype='Construction Space';
1.72 www 514: $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
515: ': '.$tdom.'<br />'.
516: ' '.&mt('Server').': '.$home;
1.118 albertel 517: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82 www 518: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75 albertel 519: $sortkey=$role."$trest:$tdom";
1.35 matthew 520: } elsif ($role eq 'au') {
521: # Authors
522: my $home = &Apache::lonnet::homeserver
1.118 albertel 523: ($env{'user.name'},$env{'user.domain'});
1.83 albertel 524: my $allowed=0;
525: my @ids=&Apache::lonnet::current_machine_ids();
526: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
527: if (!$allowed) {
1.49 www 528: $button=0;
1.51 www 529: $switchserver=&Apache::lonnet::escape('http://'.
530: $Apache::lonnet::hostname{$home}.
1.118 albertel 531: '/adm/login?domain='.$env{'user.domain'}.
532: '&username='.$env{'user.name'}.
533: '&firsturl=/priv/'.$env{'user.name'}.'/');
1.49 www 534: }
1.35 matthew 535: #next if ($home eq 'no_host');
536: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 537: $ttype='Construction Space';
1.72 www 538: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
539: ': '.$home;
1.118 albertel 540: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
541: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 542: $sortkey=$role;
1.35 matthew 543: } elsif ($trest) {
1.78 sakharuk 544: $ttype='Course';
1.35 matthew 545: my $tcourseid=$tdom.'_'.$trest;
1.118 albertel 546: if ($env{'course.'.$tcourseid.'.description'}) {
547: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 548: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 549: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 550: $twhere.=' <font size="-2">'.
1.72 www 551: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 552: '</font>';
1.55 albertel 553: }
1.8 www 554: } else {
1.105 raeburn 555: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 556: if (%newhash) {
1.80 albertel 557: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 558: "\0".$envkey;
1.49 www 559: $twhere=$newhash{'description'}.
560: ' <font size="-2">'.
1.72 www 561: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 562: '</font>';
1.35 matthew 563: } else {
1.72 www 564: $twhere=&mt('Currently not available');
1.118 albertel 565: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 566: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 567: }
1.8 www 568: }
1.121 albertel 569: if ($tsection) {
570: $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
571: }
572:
1.72 www 573: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 574: } elsif ($tdom) {
1.78 sakharuk 575: $ttype='Domain';
1.35 matthew 576: $twhere=$tdom;
1.75 albertel 577: $sortkey=$role.$twhere;
1.35 matthew 578: } else {
1.78 sakharuk 579: $ttype='System';
1.72 www 580: $twhere=&mt('system wide');
1.75 albertel 581: $sortkey=$role.$twhere;
1.13 www 582: }
1.35 matthew 583:
1.127 albertel 584: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 585: $roletext{$envkey}=$roletext;
586: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
587: $sortrole{$sortkey}=$envkey;
588: $roleclass{$envkey}=$ttype;
1.55 albertel 589: }
1.4 www 590: }
1.75 albertel 591: }
1.84 www 592: # No active roles
593: if ($countactive==0) {
594: if ($inrole) {
595: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
596: } else {
597: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
598: }
599: $r->print('</form></body></html>');
600: return OK;
601: # Is there only one choice?
1.118 albertel 602: } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84 www 603: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
604: '<input type="hidden" name="'.$possiblerole.'" value="1" />');
605: $r->print("</form>\n");
606: $r->rflush();
607: $r->print('<script>document.forms.rolechoice.submit();</script>');
608: $r->print('</body></html>');
609: return OK;
610: }
611: # More than one possible role
612: # ----------------------------------------------------------------------- Table
613: unless (($advanced) || ($nochoose)) {
614: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
615: }
616: $r->print('<br /><table><tr>');
617: unless ($nochoose) { $r->print('<th> </th>'); }
1.121 albertel 618: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132 albertel 619: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76 albertel 620: my $doheaders=-1;
1.129 albertel 621: foreach my $type ('Domain','Construction Space','Course','System') {
1.76 albertel 622: my $haverole=0;
1.75 albertel 623: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
624: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 625: $haverole=1;
1.75 albertel 626: }
1.76 albertel 627: }
628: if ($haverole) { $doheaders++; }
629: }
1.111 albertel 630:
1.118 albertel 631: if ($env{'environment.recentroles'}) {
1.111 albertel 632: my %recent_roles =
1.118 albertel 633: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 634: my $output='';
635: foreach (sort(keys(%recent_roles))) {
636: if (defined($roletext{'user.role.'.$_})) {
637: $output.=$roletext{'user.role.'.$_};
1.133 albertel 638: if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
639: $output .= &allcourses_row($1);
640: }
1.113 raeburn 641: } elsif ($numdc > 0) {
642: unless ($_ =~/^error\:/) {
643: $output.=&display_cc_role('user.role.'.$_);
644: }
645: }
1.111 albertel 646: }
647: if ($output) {
1.132 albertel 648: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126 www 649: &mt('Recent Roles')."</font></td>");
1.111 albertel 650: $r->print($output);
651: $r->print("</tr>");
1.114 raeburn 652: $doheaders ++;
1.111 albertel 653: }
654: }
655:
1.104 raeburn 656: if ($numdc > 0) {
1.112 raeburn 657: $r->print(&coursepick_jscript());
658: $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108 raeburn 659: }
1.132 albertel 660: foreach my $type ('Construction Space','Domain','Course','System') {
1.108 raeburn 661: my $output;
662: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
663: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
664: $output.=$roletext{$sortrole{$which}};
665: if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
666: if ($dcroles{$1}) {
667: $output .= &allcourses_row($1);
1.104 raeburn 668: }
669: }
1.76 albertel 670: }
1.108 raeburn 671: }
672: if ($output) {
673: if ($doheaders > 0) {
1.126 www 674: $r->print("<tr>".
1.132 albertel 675: "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76 albertel 676: }
1.108 raeburn 677: $r->print($output);
678: }
1.4 www 679: }
1.14 www 680: my $tremark='';
1.47 www 681: my $tfont='#003300';
1.118 albertel 682: if ($env{'request.role'} eq 'cm') {
1.19 www 683: $r->print('<tr bgcolor="#11CC55">');
1.72 www 684: $tremark=&mt('Currently selected. ');
1.47 www 685: $tfont='#002200';
1.14 www 686: } else {
687: $r->print('<tr bgcolor="#77FF77">');
688: }
689: unless ($nochoose) {
1.118 albertel 690: if ($env{'request.role'} ne 'cm') {
1.134 www 691: $r->print('<td><input type="submit" value="'.
1.72 www 692: &mt('Select').'" name="cm"></td>');
1.55 albertel 693: } else {
694: $r->print('<td> </td>');
695: }
1.14 www 696: }
1.132 albertel 697: $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 698: '</font></td><td><font color="'.$tfont.'">'.$tremark.
699: ' </font></td></tr>'."\n");
1.4 www 700:
701: $r->print('</table>');
702: unless ($nochoose) {
703: $r->print("</form>\n");
704: }
1.22 harris41 705: # ------------------------------------------------------------ Privileges Info
1.118 albertel 706: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 707: $r->print('<hr /><h2>Current Privileges</h2>');
1.4 www 708:
1.118 albertel 709: foreach $envkey (sort keys %env) {
710: if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
1.55 albertel 711: my $where=$envkey;
1.118 albertel 712: $where=~s/^user\.priv\.$env{'request.role'}\.//;
1.55 albertel 713: my $ttype;
714: my $twhere;
715: my ($tdom,$trest,$tsec)=
716: split(/\//,Apache::lonnet::declutter($where));
717: if ($trest) {
1.118 albertel 718: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1.55 albertel 719: $ttype='Construction Space';
720: $twhere='User: '.$trest.', Domain: '.$tdom;
721: } else {
722: $ttype='Course';
1.118 albertel 723: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1.55 albertel 724: if ($tsec) {
725: $twhere.=' (Section/Group: '.$tsec.')';
726: }
727: }
728: } elsif ($tdom) {
729: $ttype='Domain';
730: $twhere=$tdom;
731: } else {
732: $ttype='System';
733: $twhere='/';
734: }
735: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
1.118 albertel 736: foreach (sort split(/:/,$env{$envkey})) {
1.55 albertel 737: if ($_) {
738: my ($prv,$restr)=split(/\&/,$_);
739: my $trestr='';
740: if ($restr ne 'F') {
741: my $i;
742: $trestr.=' (';
743: for ($i=0;$i<length($restr);$i++) {
744: $trestr.=
745: Apache::lonnet::plaintext(substr($restr,$i,1));
746: if ($i<length($restr)-1) { $trestr.=', '; }
747: }
748: $trestr.=')';
749: }
750: $r->print('<li>'.
751: Apache::lonnet::plaintext($prv).$trestr.
752: '</li>');
753: }
754: }
755: $r->print('</ul>');
756: }
757: }
1.4 www 758: }
1.66 www 759: $r->print(&Apache::lonnet::getannounce());
1.65 www 760: if ($advanced) {
761: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 762: $r->dir_config('lonVersion').'</i><br />'.
763: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 764: }
1.1 harris41 765: $r->print("</body></html>\n");
766: return OK;
1.102 raeburn 767: }
768:
769: sub role_status {
770: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
771: my @pwhere = ();
1.118 albertel 772: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 773: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
774: unless (!defined($$role) || $$role eq '') {
775: $$where=join('.',@pwhere);
776: $$trolecode=$$role.'.'.$$where;
1.118 albertel 777: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 778: $$tstatus='is';
1.105 raeburn 779: if ($$tstart && $$tstart>$then) {
780: $$tstatus='future';
781: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 782: }
783: if ($$tend) {
784: if ($$tend<$then) {
785: $$tstatus='expired';
1.103 raeburn 786: } elsif ($$tend<$now) {
1.104 raeburn 787: $$tstatus='will_not';
1.102 raeburn 788: }
789: }
790: }
791: }
792: }
1.1 harris41 793:
1.110 raeburn 794: sub build_roletext {
1.127 albertel 795: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
796: my $roletext='<tr bgcolor="'.$tbg.'">';
1.132 albertel 797: my $is_dc=($trolecode =~ m/^dc\./);
798: my $rowspan=($is_dc) ? ''
799: : ' rowspan="2" ';
800:
1.110 raeburn 801: unless ($nochoose) {
1.134 www 802: my $buttonname=$trolecode;
803: $buttonname=~s/\W//g;
1.110 raeburn 804: if (!$button) {
805: if ($switchserver) {
1.132 albertel 806: $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
1.110 raeburn 807: $switchserver.'">'.&mt('Switch Server').'</a></td>';
808: } else {
809: $roletext.=('<td> </td>');
810: }
811: } elsif ($tstatus eq 'is') {
1.134 www 812: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
813: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
814: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 815: } elsif ($tryagain) {
816: $roletext.=
1.134 www 817: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
818: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
819: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 820: } elsif ($advanced) {
821: $roletext.=
1.134 www 822: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
823: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
824: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 825: } else {
1.132 albertel 826: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 827: }
828: }
829: $tremark.=&Apache::lonannounce::showday(time,1,
830: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
831:
832: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 833: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 834: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
835: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 836: '</font></td></tr>';
837: if (!$is_dc) {
838: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
839: ' </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
840: }
1.110 raeburn 841: return $roletext;
842: }
843:
844: sub check_privs {
845: my ($cckey,$then,$now) = @_;
1.118 albertel 846: if ($env{$cckey}) {
1.110 raeburn 847: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
848: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
849: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
850: &set_privileges($1,$2);
851: }
852: } else {
853: &set_privileges($1,$2);
854: }
855: }
856:
1.104 raeburn 857: sub check_fordc {
858: my ($dcroles,$then) = @_;
859: my $numdc = 0;
1.118 albertel 860: if ($env{'user.adv'}) {
861: foreach my $envkey (sort keys %env) {
1.104 raeburn 862: if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
863: my $dcdom = $1;
864: my $livedc = 1;
1.118 albertel 865: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 866: if ($tstart && $tstart>$then) { $livedc = 0; }
867: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 868: if ($livedc) {
869: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 870: $numdc++;
1.104 raeburn 871: }
872: }
873: }
874: }
875: return $numdc;
876: }
877:
1.108 raeburn 878: sub courselink {
879: my ($dcdom) = @_;
1.109 raeburn 880: my $courseform=&Apache::loncommon::selectcourse_link
1.112 raeburn 881: ('rolechoice','dccourse_'.$dcdom,'dcdomain_'.$dcdom,'coursedesc_'.$dcdom,$dcdom);
1.109 raeburn 882: my $hiddenitems = '<input type="hidden" name="dcdomain_'.$dcdom.'" value="'.$dcdom.'" />'.
883: '<input type="hidden" name="origdom_'.$dcdom.'" value="'.$dcdom.'" />'.
884: '<input type="hidden" name="dccourse_'.$dcdom.'" value="" />'.
885: '<input type="hidden" name="coursedesc_'.$dcdom.'" value="" />';
1.112 raeburn 886: return $courseform.$hiddenitems;
1.109 raeburn 887: }
888:
889: sub coursepick_jscript {
1.104 raeburn 890: my $verify_script = <<"END";
891: <script>
1.108 raeburn 892: function verifyCoursePick(caller) {
893: var numbutton = getIndex(caller)
1.112 raeburn 894: var pickedCourse = document.rolechoice.elements[numbutton+4].value
895: var pickedDomain = document.rolechoice.elements[numbutton+2].value
896: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 897: if (pickedCourse != '') {
1.108 raeburn 898: if (numbutton != -1) {
899: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
900: document.rolechoice.elements[numbutton+1].name = courseTarget
901: document.rolechoice.submit()
902: }
1.104 raeburn 903: }
904: else {
1.114 raeburn 905: alert("Please use the 'Select Course' link to open a separate pick course window where you may select the course you wish to enter.");
1.104 raeburn 906: }
907: }
908: else {
909: alert("You can only use this screen to select courses in the current domain")
910: }
911: }
1.109 raeburn 912: function getIndex(caller) {
1.108 raeburn 913: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 914: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 915: return i;
916: }
917: }
918: return -1;
919: }
1.104 raeburn 920: </script>
921: END
1.109 raeburn 922: return $verify_script;
1.104 raeburn 923: }
924:
1.109 raeburn 925: sub processpick {
926: my $dcdom = shift;
927: my $process_pick = <<"END";
928: <script>
929: function process_pick(dom) {
930: var numbutton = getIndex(dom)
931: var pickedCourse = opener.document.rolechoice.dccourse_$dcdom.value
932: var pickedDomain = opener.document.rolechoice.dcdomain_$dcdom.value
933: if (opener.document.rolechoice.dcdomain_$dcdom.value == opener.document.rolechoice.origdom_$dcdom.value) {
934: if (pickedCourse != '') {
935: if (numbutton != -1) {
936: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
1.132 albertel 937: opener.document.rolechoice.elements[numbutton].name = courseTarget
1.109 raeburn 938: opener.document.rolechoice.submit()
939: }
940: }
941: }
942: }
943:
944: function getIndex(dom) {
945: var callername = 'ccpick_'+dom
946: for (var i=0;i<opener.document.rolechoice.elements.length;i++) {
947: var elemname = opener.document.rolechoice.elements[i].name
948: if (elemname == callername) {
949: return i;
950: }
951: }
952: return -1;
953: }
954: </script>
955: END
956: return $process_pick;
957: }
1.108 raeburn 958:
1.113 raeburn 959: sub display_cc_role {
960: my $rolekey = shift;
961: my $roletext;
1.118 albertel 962: my $advanced = $env{'user.adv'};
963: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 964: unless ($rolekey =~/^error\:/) {
965: if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
966: my $tcourseid = $1.'_'.$2;
967: my $trolecode = 'cc./'.$1.'/'.$2;
968: my $trole = Apache::lonnet::plaintext('cc');
969: my $twhere;
970: my $tbg='#77FF77';
971: my $tfont='#003300';
972: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
973: if (%newhash) {
974: $twhere=$newhash{'description'}.
975: ' <font size="-2">'.
976: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
977: '</font>';
978: } else {
979: $twhere=&mt('Currently not available');
1.118 albertel 980: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 981: }
1.113 raeburn 982: $twhere.="<br />".&mt('Domain').":".$1;
1.127 albertel 983: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,&mt('Course'),$twhere,'','','',1,'');
1.104 raeburn 984: }
985: }
1.113 raeburn 986: return $roletext;
1.104 raeburn 987: }
988:
1.108 raeburn 989: sub allcourses_row {
1.109 raeburn 990: my $dcdom = shift;
1.108 raeburn 991: my $ccrole = Apache::lonnet::plaintext('cc');
992: my $selectlink = &courselink($dcdom);
1.132 albertel 993: my $output = '<tr bgcolor="#77FF77">'.
994: '<input type="hidden" name="ccpick_'.$dcdom.'" />'.
995: '<input type="hidden" name="pick_'.$dcdom.'" value="1" />'.
996: '<td colspan="5">'.
997: '<font color="#002200">'.$ccrole.'</font>'.
998: ' <b>'.$selectlink.'</b>'.
999: ' from '.&mt('Domain').' '.$dcdom.
1000: '<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 1001: return $output;
1002: }
1003:
1.104 raeburn 1004: sub recent_filename {
1005: my $area=shift;
1006: return 'nohist_recent_'.&Apache::lonnet::escape($area);
1007: }
1008:
1.106 raeburn 1009: sub set_privileges {
1010: my ($dcdom,$pickedcourse) = @_;
1011: my $area = '/'.$dcdom.'/'.$pickedcourse;
1012: my $role = 'cc';
1013: my $spec = $role.'.'.$area;
1.118 albertel 1014: my $userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
1.106 raeburn 1015: my %ccrole = ();
1016: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.107 raeburn 1017: my ($author,$adv)= &Apache::lonnet::set_userprivs(\$userroles,\%ccrole);
1018: my @newprivs = split/\n/,$userroles;
1.106 raeburn 1019: my %newccroles = ();
1020: foreach (@newprivs) {
1021: my ($key,$val) = split/=/,$_;
1022: $newccroles{$key} = $val;
1023: }
1024: &Apache::lonnet::appenv(%newccroles);
1.118 albertel 1025: &Apache::lonnet::log($env{'user.domain'},
1026: $env{'user.name'},
1027: $env{'user.home'},
1.106 raeburn 1028: "Role ".$role);
1029: &Apache::lonnet::appenv(
1030: 'request.role' => $role,
1031: 'request.role.domain' => $dcdom,
1032: 'request.course.sec' => '');
1033: my $tadv=0;
1034: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1035: &Apache::lonnet::appenv('request.role.adv' => $tadv);
1036: }
1037:
1.1 harris41 1038: 1;
1039: __END__
1.32 harris41 1040:
1041: =head1 NAME
1042:
1043: Apache::lonroles - User Roles Screen
1044:
1045: =head1 SYNOPSIS
1046:
1047: Invoked by /etc/httpd/conf/srm.conf:
1048:
1049: <Location /adm/roles>
1050: PerlAccessHandler Apache::lonacc
1051: SetHandler perl-script
1052: PerlHandler Apache::lonroles
1053: ErrorDocument 403 /adm/login
1054: ErrorDocument 500 /adm/errorhandler
1055: </Location>
1.64 bowersj2 1056:
1057: =head1 OVERVIEW
1058:
1059: =head2 Choosing Roles
1060:
1061: C<lonroles> is a handler that allows a user to switch roles in
1062: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1063: default role that a user has before selecting a role, as widely as
1064: possible, but certain handlers for example need specification which
1065: course they should act on, etc. Both in this scenario, and when the
1066: handler determines via C<lonnet>'s C<&allowed> function that a certain
1067: action is not allowed, C<lonroles> is used as error handler. This
1068: allows the user to select another role which may have permission to do
1069: what they were trying to do. C<lonroles> can also be accessed via the
1070: B<CRS> button in the Remote Control.
1071:
1072: =begin latex
1073:
1074: \begin{figure}
1075: \begin{center}
1076: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1077: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1078: \end{center}
1079: \end{figure}
1080:
1081: =end latex
1082:
1083: =head2 Role Initialization
1084:
1085: 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 1086:
1087: =head1 INTRODUCTION
1088:
1089: This module enables a user to select what role he wishes to
1090: operate under (instructor, student, teaching assistant, course
1091: coordinator, etc). These roles are pre-established by the actions
1092: of upper-level users.
1093:
1094: This is part of the LearningOnline Network with CAPA project
1095: described at http://www.lon-capa.org.
1096:
1097: =head1 HANDLER SUBROUTINE
1098:
1099: This routine is called by Apache and mod_perl.
1100:
1101: =over 4
1102:
1103: =item *
1104:
1105: Roles Initialization (yes/no)
1106:
1107: =item *
1108:
1109: Get Error Message from Environment
1110:
1111: =item *
1112:
1113: Who is this?
1114:
1115: =item *
1116:
1117: Generate Page Output
1118:
1119: =item *
1120:
1121: Choice or no choice
1122:
1123: =item *
1124:
1125: Table
1126:
1127: =item *
1128:
1129: Privileges
1130:
1131: =back
1132:
1133: =cut
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