Annotation of loncom/auth/lonroles.pm, revision 1.138.2.1
1.1 harris41 1: # The LearningOnline Network with CAPA
2: # User Roles Screen
1.31 www 3: #
1.138.2.1! albertel 4: # $Id: lonroles.pm,v 1.138 2005/12/15 23:31:22 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;
1.138.2.1! albertel 529: $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49 www 530: }
1.35 matthew 531: #next if ($home eq 'no_host');
532: $home = $Apache::lonnet::hostname{$home};
1.78 sakharuk 533: $ttype='Construction Space';
1.72 www 534: $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
535: ': '.$home;
1.118 albertel 536: $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
537: $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75 albertel 538: $sortkey=$role;
1.35 matthew 539: } elsif ($trest) {
1.78 sakharuk 540: $ttype='Course';
1.35 matthew 541: my $tcourseid=$tdom.'_'.$trest;
1.118 albertel 542: if ($env{'course.'.$tcourseid.'.description'}) {
543: $twhere=$env{'course.'.$tcourseid.'.description'};
1.80 albertel 544: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72 www 545: unless ($twhere eq &mt('Currently not available')) {
1.55 albertel 546: $twhere.=' <font size="-2">'.
1.72 www 547: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 548: '</font>';
1.55 albertel 549: }
1.8 www 550: } else {
1.105 raeburn 551: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35 matthew 552: if (%newhash) {
1.80 albertel 553: $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77 albertel 554: "\0".$envkey;
1.49 www 555: $twhere=$newhash{'description'}.
556: ' <font size="-2">'.
1.72 www 557: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49 www 558: '</font>';
1.35 matthew 559: } else {
1.72 www 560: $twhere=&mt('Currently not available');
1.118 albertel 561: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80 albertel 562: $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35 matthew 563: }
1.8 www 564: }
1.121 albertel 565: if ($tsection) {
566: $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
567: }
568:
1.72 www 569: if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35 matthew 570: } elsif ($tdom) {
1.78 sakharuk 571: $ttype='Domain';
1.35 matthew 572: $twhere=$tdom;
1.75 albertel 573: $sortkey=$role.$twhere;
1.35 matthew 574: } else {
1.78 sakharuk 575: $ttype='System';
1.72 www 576: $twhere=&mt('system wide');
1.75 albertel 577: $sortkey=$role.$twhere;
1.13 www 578: }
1.35 matthew 579:
1.127 albertel 580: $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75 albertel 581: $roletext{$envkey}=$roletext;
582: if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
583: $sortrole{$sortkey}=$envkey;
584: $roleclass{$envkey}=$ttype;
1.55 albertel 585: }
1.4 www 586: }
1.75 albertel 587: }
1.84 www 588: # No active roles
589: if ($countactive==0) {
590: if ($inrole) {
591: $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
592: } else {
593: $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
594: }
595: $r->print('</form></body></html>');
596: return OK;
597: # Is there only one choice?
1.118 albertel 598: } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84 www 599: $r->print('<h3>'.&mt('Please stand by.').'</h3>'.
600: '<input type="hidden" name="'.$possiblerole.'" value="1" />');
601: $r->print("</form>\n");
602: $r->rflush();
603: $r->print('<script>document.forms.rolechoice.submit();</script>');
604: $r->print('</body></html>');
605: return OK;
606: }
607: # More than one possible role
608: # ----------------------------------------------------------------------- Table
609: unless (($advanced) || ($nochoose)) {
610: $r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
611: }
612: $r->print('<br /><table><tr>');
613: unless ($nochoose) { $r->print('<th> </th>'); }
1.121 albertel 614: $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132 albertel 615: '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76 albertel 616: my $doheaders=-1;
1.129 albertel 617: foreach my $type ('Domain','Construction Space','Course','System') {
1.76 albertel 618: my $haverole=0;
1.75 albertel 619: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
620: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
1.76 albertel 621: $haverole=1;
1.75 albertel 622: }
1.76 albertel 623: }
624: if ($haverole) { $doheaders++; }
625: }
1.111 albertel 626:
1.118 albertel 627: if ($env{'environment.recentroles'}) {
1.111 albertel 628: my %recent_roles =
1.118 albertel 629: &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111 albertel 630: my $output='';
631: foreach (sort(keys(%recent_roles))) {
632: if (defined($roletext{'user.role.'.$_})) {
633: $output.=$roletext{'user.role.'.$_};
1.133 albertel 634: if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
1.138 raeburn 635: $output .= &allcourses_row($1,'recent');
1.133 albertel 636: }
1.113 raeburn 637: } elsif ($numdc > 0) {
638: unless ($_ =~/^error\:/) {
639: $output.=&display_cc_role('user.role.'.$_);
640: }
641: }
1.111 albertel 642: }
643: if ($output) {
1.132 albertel 644: $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126 www 645: &mt('Recent Roles')."</font></td>");
1.111 albertel 646: $r->print($output);
647: $r->print("</tr>");
1.114 raeburn 648: $doheaders ++;
1.111 albertel 649: }
650: }
651:
1.104 raeburn 652: if ($numdc > 0) {
1.112 raeburn 653: $r->print(&coursepick_jscript());
654: $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108 raeburn 655: }
1.132 albertel 656: foreach my $type ('Construction Space','Domain','Course','System') {
1.108 raeburn 657: my $output;
658: foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
659: if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) {
660: $output.=$roletext{$sortrole{$which}};
661: if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
662: if ($dcroles{$1}) {
1.138 raeburn 663: $output .= &allcourses_row($1,'');
1.104 raeburn 664: }
665: }
1.76 albertel 666: }
1.108 raeburn 667: }
668: if ($output) {
669: if ($doheaders > 0) {
1.126 www 670: $r->print("<tr>".
1.132 albertel 671: "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76 albertel 672: }
1.108 raeburn 673: $r->print($output);
674: }
1.4 www 675: }
1.14 www 676: my $tremark='';
1.47 www 677: my $tfont='#003300';
1.118 albertel 678: if ($env{'request.role'} eq 'cm') {
1.19 www 679: $r->print('<tr bgcolor="#11CC55">');
1.72 www 680: $tremark=&mt('Currently selected. ');
1.47 www 681: $tfont='#002200';
1.14 www 682: } else {
683: $r->print('<tr bgcolor="#77FF77">');
684: }
685: unless ($nochoose) {
1.118 albertel 686: if ($env{'request.role'} ne 'cm') {
1.134 www 687: $r->print('<td><input type="submit" value="'.
1.72 www 688: &mt('Select').'" name="cm"></td>');
1.55 albertel 689: } else {
690: $r->print('<td> </td>');
691: }
1.14 www 692: }
1.132 albertel 693: $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
1.47 www 694: '</font></td><td><font color="'.$tfont.'">'.$tremark.
695: ' </font></td></tr>'."\n");
1.4 www 696:
697: $r->print('</table>');
698: unless ($nochoose) {
699: $r->print("</form>\n");
700: }
1.22 harris41 701: # ------------------------------------------------------------ Privileges Info
1.118 albertel 702: if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127 albertel 703: $r->print('<hr /><h2>Current Privileges</h2>');
1.4 www 704:
1.118 albertel 705: foreach $envkey (sort keys %env) {
706: if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
1.55 albertel 707: my $where=$envkey;
1.118 albertel 708: $where=~s/^user\.priv\.$env{'request.role'}\.//;
1.55 albertel 709: my $ttype;
710: my $twhere;
711: my ($tdom,$trest,$tsec)=
712: split(/\//,Apache::lonnet::declutter($where));
713: if ($trest) {
1.118 albertel 714: if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1.55 albertel 715: $ttype='Construction Space';
716: $twhere='User: '.$trest.', Domain: '.$tdom;
717: } else {
718: $ttype='Course';
1.118 albertel 719: $twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1.55 albertel 720: if ($tsec) {
721: $twhere.=' (Section/Group: '.$tsec.')';
722: }
723: }
724: } elsif ($tdom) {
725: $ttype='Domain';
726: $twhere=$tdom;
727: } else {
728: $ttype='System';
729: $twhere='/';
730: }
731: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
1.118 albertel 732: foreach (sort split(/:/,$env{$envkey})) {
1.55 albertel 733: if ($_) {
734: my ($prv,$restr)=split(/\&/,$_);
735: my $trestr='';
736: if ($restr ne 'F') {
737: my $i;
738: $trestr.=' (';
739: for ($i=0;$i<length($restr);$i++) {
740: $trestr.=
741: Apache::lonnet::plaintext(substr($restr,$i,1));
742: if ($i<length($restr)-1) { $trestr.=', '; }
743: }
744: $trestr.=')';
745: }
746: $r->print('<li>'.
747: Apache::lonnet::plaintext($prv).$trestr.
748: '</li>');
749: }
750: }
751: $r->print('</ul>');
752: }
753: }
1.4 www 754: }
1.66 www 755: $r->print(&Apache::lonnet::getannounce());
1.65 www 756: if ($advanced) {
757: $r->print('<p><small><i>This is LON-CAPA '.
1.85 www 758: $r->dir_config('lonVersion').'</i><br />'.
759: '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65 www 760: }
1.1 harris41 761: $r->print("</body></html>\n");
762: return OK;
1.102 raeburn 763: }
764:
765: sub role_status {
766: my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
767: my @pwhere = ();
1.118 albertel 768: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102 raeburn 769: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
770: unless (!defined($$role) || $$role eq '') {
771: $$where=join('.',@pwhere);
772: $$trolecode=$$role.'.'.$$where;
1.118 albertel 773: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102 raeburn 774: $$tstatus='is';
1.105 raeburn 775: if ($$tstart && $$tstart>$then) {
776: $$tstatus='future';
777: if ($$tstart<$now) { $$tstatus='will'; }
1.102 raeburn 778: }
779: if ($$tend) {
780: if ($$tend<$then) {
781: $$tstatus='expired';
1.103 raeburn 782: } elsif ($$tend<$now) {
1.104 raeburn 783: $$tstatus='will_not';
1.102 raeburn 784: }
785: }
786: }
787: }
788: }
1.1 harris41 789:
1.110 raeburn 790: sub build_roletext {
1.127 albertel 791: my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
792: my $roletext='<tr bgcolor="'.$tbg.'">';
1.132 albertel 793: my $is_dc=($trolecode =~ m/^dc\./);
794: my $rowspan=($is_dc) ? ''
795: : ' rowspan="2" ';
796:
1.110 raeburn 797: unless ($nochoose) {
1.134 www 798: my $buttonname=$trolecode;
799: $buttonname=~s/\W//g;
1.110 raeburn 800: if (!$button) {
801: if ($switchserver) {
1.132 albertel 802: $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
1.110 raeburn 803: $switchserver.'">'.&mt('Switch Server').'</a></td>';
804: } else {
805: $roletext.=('<td> </td>');
806: }
807: } elsif ($tstatus eq 'is') {
1.134 www 808: $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
809: &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
810: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 811: } elsif ($tryagain) {
812: $roletext.=
1.134 www 813: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
814: &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
815: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 816: } elsif ($advanced) {
817: $roletext.=
1.134 www 818: '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
819: &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
820: $trolecode."','".$buttonname.'\');"></td>';
1.110 raeburn 821: } else {
1.132 albertel 822: $roletext.='<td'.$rowspan.'> </td>';
1.110 raeburn 823: }
824: }
825: $tremark.=&Apache::lonannounce::showday(time,1,
826: &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
827:
828: $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121 albertel 829: '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110 raeburn 830: '</font></td><td><font color="'.$tfont.'">'.$tpstart.
831: '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132 albertel 832: '</font></td></tr>';
833: if (!$is_dc) {
834: $roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
835: ' </font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
836: }
1.110 raeburn 837: return $roletext;
838: }
839:
840: sub check_privs {
841: my ($cckey,$then,$now) = @_;
1.118 albertel 842: if ($env{$cckey}) {
1.110 raeburn 843: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
844: &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
845: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
846: &set_privileges($1,$2);
847: }
848: } else {
849: &set_privileges($1,$2);
850: }
851: }
852:
1.104 raeburn 853: sub check_fordc {
854: my ($dcroles,$then) = @_;
855: my $numdc = 0;
1.118 albertel 856: if ($env{'user.adv'}) {
857: foreach my $envkey (sort keys %env) {
1.104 raeburn 858: if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
859: my $dcdom = $1;
860: my $livedc = 1;
1.118 albertel 861: my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105 raeburn 862: if ($tstart && $tstart>$then) { $livedc = 0; }
863: if ($tend && $tend <$then) { $livedc = 0; }
1.104 raeburn 864: if ($livedc) {
865: $$dcroles{$dcdom} = $envkey;
1.105 raeburn 866: $numdc++;
1.104 raeburn 867: }
868: }
869: }
870: }
871: return $numdc;
872: }
873:
1.108 raeburn 874: sub courselink {
1.138 raeburn 875: my ($dcdom,$rowtype) = @_;
1.109 raeburn 876: my $courseform=&Apache::loncommon::selectcourse_link
1.138 raeburn 877: ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.$dcdom,$dcdom);
878: my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
879: '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
880: '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
881: '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112 raeburn 882: return $courseform.$hiddenitems;
1.109 raeburn 883: }
884:
885: sub coursepick_jscript {
1.104 raeburn 886: my $verify_script = <<"END";
887: <script>
1.108 raeburn 888: function verifyCoursePick(caller) {
889: var numbutton = getIndex(caller)
1.112 raeburn 890: var pickedCourse = document.rolechoice.elements[numbutton+4].value
891: var pickedDomain = document.rolechoice.elements[numbutton+2].value
892: if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104 raeburn 893: if (pickedCourse != '') {
1.108 raeburn 894: if (numbutton != -1) {
895: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
896: document.rolechoice.elements[numbutton+1].name = courseTarget
897: document.rolechoice.submit()
898: }
1.104 raeburn 899: }
900: else {
1.114 raeburn 901: 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 902: }
903: }
904: else {
905: alert("You can only use this screen to select courses in the current domain")
906: }
907: }
1.109 raeburn 908: function getIndex(caller) {
1.108 raeburn 909: for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109 raeburn 910: if (document.rolechoice.elements[i] == caller) {
1.108 raeburn 911: return i;
912: }
913: }
914: return -1;
915: }
1.104 raeburn 916: </script>
917: END
1.109 raeburn 918: return $verify_script;
1.104 raeburn 919: }
920:
1.109 raeburn 921: sub processpick {
922: my $process_pick = <<"END";
923: <script>
924: function process_pick(dom) {
1.138 raeburn 925: var pickedCourse=opener.document.rolechoice.$env{'form.cnumelement'}.value;
926: var pickedDomain=opener.document.rolechoice.$env{'form.cdomelement'}.value;
927: var okDomain = 0;
928:
929: if (pickedDomain == dom) {
1.109 raeburn 930: if (pickedCourse != '') {
1.138 raeburn 931: var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
932: opener.document.title='Role selected. Please stand by.';
933: opener.status='Role selected. Please stand by.';
934: opener.document.rolechoice.newrole.value=courseTarget
935: opener.document.rolechoice.submit()
1.109 raeburn 936: }
1.138 raeburn 937: } else {
938: alert("You may only use this screen to select courses in the current domain: "+dom+"\\nPlease return to the roles page window and click the 'Select Course' link for domain: "+pickedDomain+",\\n if you are a Domain Coordinator in that domain, and wish to become a Course Coordinator in a course in the domain");
1.109 raeburn 939: }
940: }
941:
942: </script>
943: END
944: return $process_pick;
945: }
1.108 raeburn 946:
1.113 raeburn 947: sub display_cc_role {
948: my $rolekey = shift;
949: my $roletext;
1.118 albertel 950: my $advanced = $env{'user.adv'};
951: my $tryagain = $env{'form.tryagain'};
1.113 raeburn 952: unless ($rolekey =~/^error\:/) {
953: if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
954: my $tcourseid = $1.'_'.$2;
955: my $trolecode = 'cc./'.$1.'/'.$2;
956: my $trole = Apache::lonnet::plaintext('cc');
957: my $twhere;
958: my $tbg='#77FF77';
959: my $tfont='#003300';
960: my %newhash=&Apache::lonnet::coursedescription($tcourseid);
961: if (%newhash) {
962: $twhere=$newhash{'description'}.
963: ' <font size="-2">'.
964: &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
965: '</font>';
966: } else {
967: $twhere=&mt('Currently not available');
1.118 albertel 968: $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110 raeburn 969: }
1.113 raeburn 970: $twhere.="<br />".&mt('Domain').":".$1;
1.127 albertel 971: $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,&mt('Course'),$twhere,'','','',1,'');
1.104 raeburn 972: }
973: }
1.113 raeburn 974: return $roletext;
1.104 raeburn 975: }
976:
1.108 raeburn 977: sub allcourses_row {
1.138 raeburn 978: my ($dcdom,$rowtype) = @_;
1.108 raeburn 979: my $ccrole = Apache::lonnet::plaintext('cc');
1.138 raeburn 980: my $selectlink = &courselink($dcdom,$rowtype);
1.132 albertel 981: my $output = '<tr bgcolor="#77FF77">'.
982: '<td colspan="5">'.
983: '<font color="#002200">'.$ccrole.'</font>'.
984: ' <b>'.$selectlink.'</b>'.
985: ' from '.&mt('Domain').' '.$dcdom.
986: '<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108 raeburn 987: return $output;
988: }
989:
1.104 raeburn 990: sub recent_filename {
991: my $area=shift;
992: return 'nohist_recent_'.&Apache::lonnet::escape($area);
993: }
994:
1.106 raeburn 995: sub set_privileges {
996: my ($dcdom,$pickedcourse) = @_;
997: my $area = '/'.$dcdom.'/'.$pickedcourse;
998: my $role = 'cc';
999: my $spec = $role.'.'.$area;
1.118 albertel 1000: my $userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
1.106 raeburn 1001: my %ccrole = ();
1002: &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.107 raeburn 1003: my ($author,$adv)= &Apache::lonnet::set_userprivs(\$userroles,\%ccrole);
1004: my @newprivs = split/\n/,$userroles;
1.106 raeburn 1005: my %newccroles = ();
1006: foreach (@newprivs) {
1007: my ($key,$val) = split/=/,$_;
1008: $newccroles{$key} = $val;
1009: }
1010: &Apache::lonnet::appenv(%newccroles);
1.118 albertel 1011: &Apache::lonnet::log($env{'user.domain'},
1012: $env{'user.name'},
1013: $env{'user.home'},
1.106 raeburn 1014: "Role ".$role);
1015: &Apache::lonnet::appenv(
1016: 'request.role' => $role,
1017: 'request.role.domain' => $dcdom,
1018: 'request.course.sec' => '');
1019: my $tadv=0;
1020: if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
1021: &Apache::lonnet::appenv('request.role.adv' => $tadv);
1022: }
1023:
1.1 harris41 1024: 1;
1025: __END__
1.32 harris41 1026:
1027: =head1 NAME
1028:
1029: Apache::lonroles - User Roles Screen
1030:
1031: =head1 SYNOPSIS
1032:
1033: Invoked by /etc/httpd/conf/srm.conf:
1034:
1035: <Location /adm/roles>
1036: PerlAccessHandler Apache::lonacc
1037: SetHandler perl-script
1038: PerlHandler Apache::lonroles
1039: ErrorDocument 403 /adm/login
1040: ErrorDocument 500 /adm/errorhandler
1041: </Location>
1.64 bowersj2 1042:
1043: =head1 OVERVIEW
1044:
1045: =head2 Choosing Roles
1046:
1047: C<lonroles> is a handler that allows a user to switch roles in
1048: mid-session. LON-CAPA attempts to work with "No Role Specified", the
1049: default role that a user has before selecting a role, as widely as
1050: possible, but certain handlers for example need specification which
1051: course they should act on, etc. Both in this scenario, and when the
1052: handler determines via C<lonnet>'s C<&allowed> function that a certain
1053: action is not allowed, C<lonroles> is used as error handler. This
1054: allows the user to select another role which may have permission to do
1055: what they were trying to do. C<lonroles> can also be accessed via the
1056: B<CRS> button in the Remote Control.
1057:
1058: =begin latex
1059:
1060: \begin{figure}
1061: \begin{center}
1062: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
1063: \caption{\label{Sample_Roles_Screen}Sample Roles Screen}
1064: \end{center}
1065: \end{figure}
1066:
1067: =end latex
1068:
1069: =head2 Role Initialization
1070:
1071: 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 1072:
1073: =head1 INTRODUCTION
1074:
1075: This module enables a user to select what role he wishes to
1076: operate under (instructor, student, teaching assistant, course
1077: coordinator, etc). These roles are pre-established by the actions
1078: of upper-level users.
1079:
1080: This is part of the LearningOnline Network with CAPA project
1081: described at http://www.lon-capa.org.
1082:
1083: =head1 HANDLER SUBROUTINE
1084:
1085: This routine is called by Apache and mod_perl.
1086:
1087: =over 4
1088:
1089: =item *
1090:
1091: Roles Initialization (yes/no)
1092:
1093: =item *
1094:
1095: Get Error Message from Environment
1096:
1097: =item *
1098:
1099: Who is this?
1100:
1101: =item *
1102:
1103: Generate Page Output
1104:
1105: =item *
1106:
1107: Choice or no choice
1108:
1109: =item *
1110:
1111: Table
1112:
1113: =item *
1114:
1115: Privileges
1116:
1117: =back
1118:
1119: =cut
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