Annotation of loncom/auth/lonroles.pm, revision 1.159

1.1       harris41    1: # The LearningOnline Network with CAPA
                      2: # User Roles Screen
1.31      www         3: #
1.159   ! albertel    4: # $Id: lonroles.pm,v 1.158 2006/06/22 23:22:47 albertel Exp $
1.31      www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.32      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;
1.151     www        42: use Apache::lonpageflip();
1.120     albertel   43: use GDBM_File;
1.149     www        44: use LONCAPA;
                     45:  
1.1       harris41   46: 
1.62      matthew    47: sub redirect_user {
1.95      albertel   48:     my ($r,$title,$url,$msg,$launch_nav) = @_;
1.62      matthew    49:     $msg = $title if (! defined($msg));
1.73      www        50:     &Apache::loncommon::content_type($r,'text/html');
1.62      matthew    51:     &Apache::loncommon::no_cache($r);
                     52:     $r->send_http_header;
                     53:     my $swinfo=&Apache::lonmenu::rawconfig();
1.96      albertel   54:     my $navwindow;
1.95      albertel   55:     if ($launch_nav eq 'on') {
1.128     albertel   56: 	$navwindow.=&Apache::lonnavmaps::launch_win('now',undef,undef,
1.140     raeburn    57: 						  ($url =~ m-^/adm/whatsnew-));
1.96      albertel   58:     } else {
                     59: 	$navwindow.=&Apache::lonnavmaps::close();
1.95      albertel   60:     }
1.147     albertel   61:     my $start_page = &Apache::loncommon::start_page('Switching Role',undef,
                     62: 						    {'redirect' => [1,$url],});
                     63:     my $end_page   = &Apache::loncommon::end_page();
                     64: 
1.92      www        65: # Note to style police: 
                     66: # This must only replace the spaces, nothing else, or it bombs elsewhere.
                     67:     $url=~s/ /\%20/g;
1.93      albertel   68:     $r->print(<<ENDREDIR);
1.147     albertel   69: $start_page
1.96      albertel   70: <script type="text/javascript">
1.62      matthew    71: $swinfo
                     72: </script>
1.96      albertel   73: $navwindow
1.62      matthew    74: <h1>$msg</h1>
1.147     albertel   75: $end_page
1.62      matthew    76: ENDREDIR
                     77:     return;
                     78: }
                     79: 
1.150     www        80: sub error_page {
                     81:     my ($r,$error,$dest)=@_;
                     82:     &Apache::loncommon::content_type($r,'text/html');
                     83:     &Apache::loncommon::no_cache($r);
                     84:     $r->send_http_header;
                     85:     return OK if $r->header_only;
                     86:     $r->print(&Apache::loncommon::start_page('Problems during Course Initialization').
                     87: 	      '<script type="text/javascript">'.
                     88: 	      &Apache::lonmenu::rawconfig().'</script>'.
                     89: 	      '<p>'.&mt('The following problems occurred:').
                     90: 	      $error.
1.156     albertel   91: 	      '</p><br /><a href="'.$dest.'">'.&mt('Continue').'</a>'.
1.150     www        92: 	      &Apache::loncommon::end_page());
                     93: }
                     94: 
1.1       harris41   95: sub handler {
1.10      www        96: 
1.1       harris41   97:     my $r = shift;
                     98: 
1.6       www        99:     my $now=time;
1.118     albertel  100:     my $then=$env{'user.login.time'};
1.6       www       101:     my $envkey;
1.107     raeburn   102:     my %dcroles = ();
                    103:     my $numdc = &check_fordc(\%dcroles,$then);
1.148     albertel  104:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.10      www       105: 
1.6       www       106: # ================================================================== Roles Init
1.118     albertel  107:     if ($env{'form.selectrole'}) {
1.134     www       108:         if ($env{'form.newrole'}) {
                    109:             $env{'form.'.$env{'form.newrole'}}=1;
                    110: 	}
1.118     albertel  111: 	if ($env{'request.course.id'}) {
                    112: 	    my %temp=('logout_'.$env{'request.course.id'} => time);
1.33      www       113: 	    &Apache::lonnet::put('email_status',\%temp);
1.118     albertel  114: 	    &Apache::lonnet::delenv('user.state.'.$env{'request.course.id'});
1.100     albertel  115: 	}
1.55      albertel  116: 	&Apache::lonnet::appenv("request.course.id"   => '',
                    117: 				"request.course.fn"   => '',
                    118: 				"request.course.uri"  => '',
                    119: 				"request.course.sec"  => '',
                    120: 				"request.role"        => 'cm',
1.118     albertel  121:                                 "request.role.adv"    => $env{'user.adv'},
                    122: 				"request.role.domain" => $env{'user.domain'});
1.106     raeburn   123: 
1.110     raeburn   124: # Check if user is a DC trying to enter a course and needs privs to be created
1.107     raeburn   125:         if ($numdc > 0) {
1.118     albertel  126:             foreach my $envkey (keys %env) {
1.146     raeburn   127:                 if (my ($domain,$coursenum) =
                    128:                                     ($envkey =~ m-^form\.cc\./(\w+)/(\w+)$-)) {
                    129:                     if ($dcroles{$domain}) {
                    130:                         &check_privs($domain,$coursenum,$then,$now);
1.107     raeburn   131:                     }
                    132:                     last;
                    133:                 }
                    134:             }
                    135:         }
                    136: 
1.118     albertel  137:         foreach $envkey (keys %env) {
1.40      matthew   138:             next if ($envkey!~/^user\.role\./);
1.102     raeburn   139:             my ($where,$trolecode,$role,$tstatus,$tend,$tstart);
                    140:             &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.118     albertel  141:             if ($env{'form.'.$trolecode}) {
1.55      albertel  142: 		if ($tstatus eq 'is') {
                    143: 		    $where=~s/^\///;
                    144: 		    my ($cdom,$cnum,$csec)=split(/\//,$where);
1.137     raeburn   145: # check for course groups
                    146:                     my %coursegroups = &Apache::lonnet::get_active_groups(
                    147:                           $env{'user.domain'},$env{'user.name'},$cdom, $cnum);
                    148:                     my $cgrps = join(':',keys(%coursegroups));
                    149: 
1.111     albertel  150: # store role if recent_role list being kept
1.118     albertel  151:                     if ($env{'environment.recentroles'}) {
1.158     albertel  152:                         my %frozen_roles =
                    153:                            &Apache::lonhtmlcommon::get_recent_frozen('roles',$env{'environment.recentrolesn'});
1.111     albertel  154: 			&Apache::lonhtmlcommon::store_recent('roles',
1.158     albertel  155: 							     $trolecode,' ',$frozen_roles{$trolecode});
1.111     albertel  156:                     }
                    157: 
                    158: 
1.53      www       159: # check for keyed access
1.55      albertel  160: 		    if (($role eq 'st') && 
1.118     albertel  161:                        ($env{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
1.89      www       162: # who is key authority?
                    163: 			my $authdom=$cdom;
                    164: 			my $authnum=$cnum;
1.118     albertel  165: 			if ($env{'course.'.$cdom.'_'.$cnum.'.keyauth'}) {
1.89      www       166: 			    ($authnum,$authdom)=
1.118     albertel  167: 				split(/\W/,$env{'course.'.$cdom.'_'.$cnum.'.keyauth'});
1.89      www       168: 			}
                    169: # check with key authority
                    170: 			unless (&Apache::lonnet::validate_access_key(
1.118     albertel  171: 				     $env{'environment.key.'.$cdom.'_'.$cnum},
1.89      www       172: 					     $authdom,$authnum)) {
1.53      www       173: # there is no valid key
1.118     albertel  174: 			     if ($env{'form.newkey'}) {
1.53      www       175: # student attempts to register a new key
1.89      www       176: 				 &Apache::loncommon::content_type($r,'text/html');
                    177: 				 &Apache::loncommon::no_cache($r);
                    178: 				 $r->send_http_header;
                    179: 				 my $swinfo=&Apache::lonmenu::rawconfig();
1.147     albertel  180: 				 my $start_page=&Apache::loncommon::start_page
1.89      www       181: 				    ('Verifying Access Key to Unlock this Course');
1.147     albertel  182: 				 my $end_page=&Apache::loncommon::end_page();
1.90      www       183: 				 my $buttontext=&mt('Enter Course');
                    184: 				 my $message=&mt('Successfully registered key');
                    185: 				 my $assignresult=
                    186: 				     &Apache::lonnet::assign_access_key(
1.118     albertel  187: 						     $env{'form.newkey'},
1.90      www       188: 						     $authdom,$authnum,
1.91      www       189: 						     $cdom,$cnum,
1.118     albertel  190:                                                      $env{'user.domain'},
                    191: 						     $env{'user.name'},
1.90      www       192: 	      'Assigned from '.$ENV{'REMOTE_ADDR'}.' at '.localtime().' for '.
                    193:                                                      $trolecode);
                    194: 				 unless ($assignresult eq 'ok') {
                    195: 				     $assignresult=~s/^error\:\s*//;
                    196: 				     $message=&mt($assignresult).
                    197: 				     '<br /><a href="/adm/logout">'.
1.89      www       198: 				     &mt('Logout').'</a>';
1.90      www       199: 				     $buttontext=&mt('Re-Enter Key');
                    200: 				 }
1.89      www       201: 				 $r->print(<<ENDENTEREDKEY);
1.147     albertel  202: $start_page
1.89      www       203: <script>
                    204: $swinfo
                    205: </script>
                    206: <form method="post">
                    207: <input type="hidden" name="selectrole" value="1" />
                    208: <input type="hidden" name="$trolecode" value="1" />
1.90      www       209: <font size="+2">$message</font><br />
1.89      www       210: <input type="submit" value="$buttontext" />
                    211: </form>
1.147     albertel  212: $end_page
1.89      www       213: ENDENTEREDKEY
                    214:                                  return OK;
1.55      albertel  215: 			     } else {
1.53      www       216: # print form to enter a new key
1.73      www       217: 				 &Apache::loncommon::content_type($r,'text/html');
1.55      albertel  218: 				 &Apache::loncommon::no_cache($r);
                    219: 				 $r->send_http_header;
                    220: 				 my $swinfo=&Apache::lonmenu::rawconfig();
1.147     albertel  221: 				 my $start_page=&Apache::loncommon::start_page
1.55      albertel  222: 				    ('Enter Access Key to Unlock this Course');
1.147     albertel  223: 				 my $end_page=&Apache::loncommon::end_page();
1.55      albertel  224: 				 $r->print(<<ENDENTERKEY);
1.147     albertel  225: $start_page
1.53      www       226: <script>
                    227: $swinfo
                    228: </script>
                    229: <form method="post">
1.89      www       230: <input type="hidden" name="selectrole" value="1" />
                    231: <input type="hidden" name="$trolecode" value="1" />
1.118     albertel  232: <input type="text" size="20" name="newkey" value="$env{'form.newkey'}" />
1.53      www       233: <input type="submit" value="Enter key" />
                    234: </form>
1.147     albertel  235: $end_page
1.53      www       236: ENDENTERKEY
1.55      albertel  237: 				 return OK;
                    238: 			     }
                    239: 			 }
                    240: 		     }
1.118     albertel  241: 		    &Apache::lonnet::log($env{'user.domain'},
                    242: 					 $env{'user.name'},
                    243: 					 $env{'user.home'},
1.87      www       244: 					 "Role ".$trolecode);
1.101     albertel  245: 		    
1.56      www       246: 		    &Apache::lonnet::appenv(
1.101     albertel  247: 					   'request.role'        => $trolecode,
1.56      www       248: 					   'request.role.domain' => $cdom,
1.137     raeburn   249: 					   'request.course.sec'  => $csec,
                    250:                                            'request.course.groups' => $cgrps);
1.101     albertel  251:                     my $tadv=0;
1.62      matthew   252: 
1.125     www       253: 		    if (($cnum) && ($role ne 'ca') && ($role ne 'aa')) {
1.152     raeburn   254:                         my $msg;
1.55      albertel  255: 			my ($furl,$ferr)=
                    256: 			    &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.118     albertel  257: 			if (($env{'form.orgurl'}) && 
                    258: 			    ($env{'form.orgurl'}!~/^\/adm\/flip/)) {
                    259: 			    my $dest=$env{'form.orgurl'};
1.117     albertel  260: 			    if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
                    261: 			    &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.150     www       262:                             if (($ferr) && ($tadv)) {
                    263: 				&error_page($r,$ferr,$dest);
                    264: 			    } else {
                    265: 				$r->internal_redirect($dest);
                    266: 			    }
1.55      albertel  267: 			    return OK;
                    268: 			} else {
1.152     raeburn   269:                             my $type = 'Course/Group';
1.155     albertel  270: 			    if (!$env{'request.course.id'}) {
1.157     albertel  271: 				$type = &Apache::loncommon::course_type();
1.55      albertel  272: 				&Apache::lonnet::appenv(
                    273: 				      "request.course.id"  => $cdom.'_'.$cnum);
1.61      www       274: 				$furl='/adm/roles?tryagain=1';
1.55      albertel  275: 				$msg=
1.157     albertel  276: 				    '<h1><span class="LC_error">'.
                    277: 				    &mt('Could not initialize '.lc($type).' at this time.').
                    278: 				    '</span></h1><h3>'.&mt('Please try again.').'</h3>'.$ferr;
1.55      albertel  279: 			    }
1.117     albertel  280: 			    if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
                    281: 			    &Apache::lonnet::appenv('request.role.adv'=>$tadv);
1.152     raeburn   282: 
1.150     www       283: 			    if (($ferr) && ($tadv)) {
                    284: 				&error_page($r,$ferr,$furl);
                    285: 			    } else {
                    286: 				# Check to see if the user is a CC entering a course 
                    287: 				# for the first time
                    288: 				my (undef, undef, $role, $courseid) = split(/\./, $envkey);
                    289: 				if (substr($courseid, 0, 1) eq '/') {
                    290: 				    $courseid = substr($courseid, 1);
                    291: 				}
                    292: 				$courseid =~ s/\//_/;
                    293: 				if ($role eq 'cc' && $env{'course.' . $courseid . 
                    294: 							      '.course.helper.not.run'}) {
                    295: 				    $furl = "/adm/helper/course.initialization.helper";
                    296: 				    # Send the user to the course they selected
                    297: 				} elsif ($env{'request.course.id'}) {
                    298: 				    if (&Apache::lonnet::allowed('whn',
                    299: 								 $env{'request.course.id'})
                    300: 					|| &Apache::lonnet::allowed('whn',
                    301: 								    $env{'request.course.id'}.'/'
                    302: 								    .$env{'request.course.sec'})
                    303: 					) {
                    304: 					my $startpage = &courseloadpage($courseid);
                    305: 					unless ($startpage eq 'firstres') {         
1.157     albertel  306: 					    $msg = &mt('Entering '.lc($type).' ....');
1.150     www       307: 					    &redirect_user($r,&mt('New in course'),
                    308: 							   '/adm/whatsnew?refpage=start',$msg,
                    309: 							   $env{'environment.remotenavmap'});
                    310: 					    return OK;
                    311: 					}
                    312: 				    }
                    313: 				}
1.151     www       314: # Are we allowed to look at the first resource?
                    315: 				if (!&Apache::lonnet::allowed('bre',$furl)) {
                    316: # Guess not ...
                    317: 				    $furl=&Apache::lonpageflip::first_accessible_resource();
                    318: 				}
1.157     albertel  319:                                 $msg = &mt('Entering '.lc($type).' ...');
                    320: 				&redirect_user($r,&mt('Entering '.$type),
1.150     www       321: 					       $furl,$msg,
                    322: 					       $env{'environment.remotenavmap'});
1.58      bowersj2  323: 			    }
1.124     albertel  324: 			    return OK;
1.55      albertel  325: 			}
                    326: 		    }
1.62      matthew   327:                     #
                    328:                     # Send the user to the construction space they selected
1.125     www       329:                     if ($role =~ /^(au|ca|aa)$/) {
1.62      matthew   330:                         my $redirect_url = '/priv/';
                    331:                         if ($role eq 'au') {
1.118     albertel  332:                             $redirect_url.=$env{'user.name'};
1.62      matthew   333:                         } else {
                    334:                             $where =~ /\/(.*)$/;
                    335:                             $redirect_url .= $1;
                    336:                         }
                    337:                         $redirect_url .= '/';
1.78      sakharuk  338:                         &redirect_user($r,&mt('Entering Construction Space'),
1.62      matthew   339:                                        $redirect_url);
                    340:                         return OK;
                    341:                     }
1.104     raeburn   342:                     if ($role eq 'dc') {
1.108     raeburn   343:                         my $redirect_url = '/adm/menu/';
                    344:                         &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104     raeburn   345:                                        $redirect_url);
1.108     raeburn   346:                         return OK;
1.104     raeburn   347:                     }
1.55      albertel  348: 		}
                    349:             }
1.6       www       350:         }
1.40      matthew   351:     }
1.44      www       352: 
1.10      www       353: 
1.6       www       354: # =============================================================== No Roles Init
1.10      www       355: 
1.73      www       356:     &Apache::loncommon::content_type($r,'text/html');
1.30      albertel  357:     &Apache::loncommon::no_cache($r);
1.10      www       358:     $r->send_http_header;
                    359:     return OK if $r->header_only;
                    360: 
1.52      www       361:     my $swinfo=&Apache::lonmenu::rawconfig();
1.147     albertel  362:     my $start_page=&Apache::loncommon::start_page('User Roles');
1.134     www       363:     my $standby=&mt('Role selected. Please stand by.');
1.135     albertel  364:     $standby=~s/\n/\\n/g;
1.94      albertel  365:     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       366:     $r->print(<<ENDHEADER);
1.147     albertel  367: $start_page
1.45      www       368: $helptag<br />
1.26      www       369: <script>
                    370: $swinfo
                    371: window.focus();
1.134     www       372: 
                    373: active=true;
                    374: 
                    375: function enterrole (thisform,rolecode,buttonname) {
                    376:     if (active) {
                    377: 	active=false;
                    378:         document.title='$standby';
                    379:         window.status='$standby';
                    380: 	thisform.newrole.value=rolecode;
                    381: 	thisform.submit();
                    382:     } else {
                    383:        alert('$standby');
                    384:     }   
                    385: }
1.26      www       386: </script>
1.10      www       387: ENDHEADER
1.6       www       388: 
1.2       www       389: # ------------------------------------------ Get Error Message from Environment
                    390: 
1.118     albertel  391:     my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
                    392:     if ($env{'user.error.msg'}) {
1.55      albertel  393: 	$r->log_reason(
1.118     albertel  394:    "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12      www       395:     }
1.1       harris41  396: 
1.61      www       397: # ------------------------------------------------- Can this user re-init, etc?
1.6       www       398: 
1.118     albertel  399:     my $advanced=$env{'user.adv'};
1.61      www       400:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118     albertel  401:     my $tryagain=$env{'form.tryagain'};
1.6       www       402: 
1.2       www       403: # -------------------------------------------------------- Generate Page Output
1.6       www       404: # --------------------------------------------------------------- Error Header?
1.2       www       405:     if ($error) {
                    406: 	$r->print("<h1>LON-CAPA Access Control</h1>");
1.126     www       407:         $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>Access  : ".
1.4       www       408:                   Apache::lonnet::plaintext($priv)."\n");
1.115     albertel  409:         $r->print("Resource: ".&Apache::lonenc::check_encrypt($fn)."\n");
1.120     albertel  410:         $r->print("Action  : $msg\n</pre><hr />");
                    411: 	my $url=$fn;
                    412: 	my $last;
                    413: 	if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
                    414: 		&GDBM_READER(),0640)) {
                    415: 	    $last=$hash{'last_known'};
                    416: 	    untie(%hash);
                    417: 	}
1.149     www       418: 	if ($last) { $fn.='?symb='.&escape($last); }
1.120     albertel  419: 
                    420: 	&Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
                    421: 					&Apache::lonenc::check_encrypt($fn));
1.2       www       422:     } else {
1.118     albertel  423:         if ($env{'user.error.msg'}) {
1.25      www       424: 	    $r->print(
1.157     albertel  425:  '<h3><span class="LC_error">'.
                    426:  &mt('You need to choose another user role or enter a specific course for this function').'</span></h3>');
1.25      www       427: 	}
1.2       www       428:     }
1.6       www       429: # -------------------------------------------------------- Choice or no choice?
1.2       www       430:     if ($nochoose) {
1.150     www       431: 	$r->print("<h2>".&mt('Sorry ...')."</h2>\n".
                    432: 		  &mt('This action is currently not authorized.').
                    433: 		  &Apache::loncommon::end_page());
                    434: 	return OK;
1.6       www       435:     } else {
                    436:         if ($advanced) {
1.72      www       437: 	    $r->print(&mt("Your home server is ").
1.55      albertel  438: 		      $Apache::lonnet::hostname{&Apache::lonnet::homeserver
1.118     albertel  439:                       ($env{'user.name'},$env{'user.domain'})}.
1.55      albertel  440: 		      "<br />\n");
1.72      www       441: 	    $r->print(&mt(
1.126     www       442:       "Author and Co-Author roles are not available on servers other than their respective home servers."));
1.17      www       443:         }
1.18      www       444:         if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
                    445:     	    $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6       www       446:         }
1.84      www       447:         $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116     albertel  448:         $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
                    449:         $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134     www       450:         $r->print('<input type="hidden" name="newrole" value="" />');
1.6       www       451:     }
1.118     albertel  452:     if ($env{'user.adv'}) {
1.63      www       453: 	$r->print(
1.116     albertel  454: 	      '<br /><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.118     albertel  455: 	if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.116     albertel  456: 	$r->print(' /></label><input type="submit" value="'.&mt('Display').'" />');
1.63      www       457:     }
1.4       www       458: 
1.75      albertel  459:     my (%roletext,%sortrole,%roleclass);
1.84      www       460:     my $countactive=0;
                    461:     my $inrole=0;
                    462:     my $possiblerole='';
1.118     albertel  463:     foreach $envkey (sort keys %env) {
1.35      matthew   464:         my $button = 1;
1.49      www       465:         my $switchserver='';
1.75      albertel  466: 	my $roletext;
                    467: 	my $sortkey;
1.2       www       468:         if ($envkey=~/^user\.role\./) {
1.102     raeburn   469:             my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
                    470:             &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136     raeburn   471:             next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102     raeburn   472:             $tremark='';
                    473:             $tpstart='&nbsp;';
                    474:             $tpend='&nbsp;';
                    475:             $tfont='#000000';
1.4       www       476:             if ($tstart) {
1.74      www       477:                 $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4       www       478:             }
                    479:             if ($tend) {
1.74      www       480:                 $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4       www       481:             }
1.118     albertel  482:             if ($env{'request.role'} eq $trolecode) {
1.6       www       483: 		$tstatus='selected';
                    484:             }
1.4       www       485:             my $tbg;
1.35      matthew   486:             if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
1.118     albertel  487:                 ($env{'form.showall'})) {
1.35      matthew   488:                 if ($tstatus eq 'is') {
                    489:                     $tbg='#77FF77';
1.47      www       490:                     $tfont='#003300';
1.84      www       491: 		    $possiblerole=$trolecode;
                    492: 		    $countactive++;
1.35      matthew   493:                 } elsif ($tstatus eq 'future') {
                    494:                     $tbg='#FFFF77';
1.49      www       495:                     $button=0;
1.35      matthew   496:                 } elsif ($tstatus eq 'will') {
                    497:                     $tbg='#FFAA77';
1.72      www       498:                     $tremark.=&mt('Active at next login. ');
1.35      matthew   499:                 } elsif ($tstatus eq 'expired') {
                    500:                     $tbg='#FF7777';
1.47      www       501:                     $tfont='#330000';
1.49      www       502:                     $button=0;
1.35      matthew   503:                 } elsif ($tstatus eq 'will_not') {
                    504:                     $tbg='#AAFF77';
1.72      www       505:                     $tremark.=&mt('Expired after logout. ');
1.35      matthew   506:                 } elsif ($tstatus eq 'selected') {
                    507:                     $tbg='#11CC55';
1.47      www       508:                     $tfont='#002200';
1.84      www       509: 		    $inrole=1;
1.86      albertel  510: 		    $countactive++;
1.72      www       511:                     $tremark.=&mt('Currently selected. ');
1.35      matthew   512:                 }
                    513:                 my $trole;
                    514:                 if ($role =~ /^cr\//) {
                    515:                     my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132     albertel  516: 		    if ($tremark) { $tremark.='<br />'; }
                    517:                     $tremark.=&mt('Defined by ').$rauthor.
1.72      www       518: 			&mt(' at ').$rdomain.'.';
1.159   ! albertel  519: 		}
        !           520: 		$trole=Apache::lonnet::plaintext($role);
1.35      matthew   521:                 my $ttype;
                    522:                 my $twhere;
                    523:                 my ($tdom,$trest,$tsection)=
                    524:                     split(/\//,Apache::lonnet::declutter($where));
                    525:                 # First, Co-Authorship roles
1.125     www       526:                 if (($role eq 'ca') || ($role eq 'aa')) {
1.39      stredwic  527:                     my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83      albertel  528: 		    my $allowed=0;
                    529: 		    my @ids=&Apache::lonnet::current_machine_ids();
                    530: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                    531:                     if (!$allowed) {
1.49      www       532: 			$button=0;
1.130     albertel  533:                         $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49      www       534:                     }
1.35      matthew   535:                     #next if ($home eq 'no_host');
                    536:                     $home = $Apache::lonnet::hostname{$home};
1.78      sakharuk  537:                     $ttype='Construction Space';
1.72      www       538:                     $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
                    539: 			': '.$tdom.'<br />'.
                    540:                         ' '.&mt('Server').':&nbsp;'.$home;
1.118     albertel  541:                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82      www       542: 		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75      albertel  543: 		    $sortkey=$role."$trest:$tdom";
1.35      matthew   544:                 } elsif ($role eq 'au') {
                    545:                     # Authors
                    546:                     my $home = &Apache::lonnet::homeserver
1.118     albertel  547:                         ($env{'user.name'},$env{'user.domain'});
1.83      albertel  548: 		    my $allowed=0;
                    549: 		    my @ids=&Apache::lonnet::current_machine_ids();
                    550: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                    551:                     if (!$allowed) {
1.49      www       552: 			$button=0;
1.143     albertel  553:                         $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49      www       554:                     }
1.35      matthew   555:                     #next if ($home eq 'no_host');
                    556:                     $home = $Apache::lonnet::hostname{$home};
1.78      sakharuk  557:                     $ttype='Construction Space';
1.72      www       558:                     $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
                    559: 			':&nbsp;'.$home;
1.118     albertel  560:                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
                    561: 		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75      albertel  562: 		    $sortkey=$role;
1.35      matthew   563:                 } elsif ($trest) {
                    564:                     my $tcourseid=$tdom.'_'.$trest;
1.153     raeburn   565:                     $ttype = &Apache::loncommon::course_type($tcourseid);
                    566:                     $trole = &Apache::lonnet::plaintext($role,$ttype);
1.118     albertel  567:                     if ($env{'course.'.$tcourseid.'.description'}) {
                    568:                         $twhere=$env{'course.'.$tcourseid.'.description'};
1.80      albertel  569: 			$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72      www       570:                         unless ($twhere eq &mt('Currently not available')) {
1.55      albertel  571: 			    $twhere.=' <font size="-2">'.
1.72      www       572:         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49      www       573:                                     '</font>';
1.55      albertel  574: 			}
1.8       www       575:                     } else {
1.105     raeburn   576:                         my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35      matthew   577:                         if (%newhash) {
1.80      albertel  578: 			    $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77      albertel  579: 				"\0".$envkey;
1.49      www       580:                             $twhere=$newhash{'description'}.
                    581:                               ' <font size="-2">'.
1.72      www       582:         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49      www       583:                               '</font>';
1.152     raeburn   584:                             $ttype = $newhash{'type'};
1.153     raeburn   585:                             $trole = &Apache::lonnet::plaintext($role,$ttype);
1.35      matthew   586:                         } else {
1.72      www       587:                             $twhere=&mt('Currently not available');
1.118     albertel  588:                             $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80      albertel  589: 			    $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.152     raeburn   590:                             $ttype = 'Unavailable';
1.35      matthew   591:                         }
1.8       www       592:                     }
1.121     albertel  593:                     if ($tsection) {
                    594:                         $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
                    595: 		    }
1.72      www       596: 		    if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35      matthew   597:                 } elsif ($tdom) {
1.78      sakharuk  598:                     $ttype='Domain';
1.35      matthew   599:                     $twhere=$tdom;
1.75      albertel  600: 		    $sortkey=$role.$twhere;
1.35      matthew   601:                 } else {
1.78      sakharuk  602:                     $ttype='System';
1.72      www       603:                     $twhere=&mt('system wide');
1.75      albertel  604: 		    $sortkey=$role.$twhere;
1.13      www       605:                 }
1.152     raeburn   606:                 $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75      albertel  607: 		$roletext{$envkey}=$roletext;
                    608: 		if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
                    609: 		$sortrole{$sortkey}=$envkey;
                    610: 		$roleclass{$envkey}=$ttype;
1.55      albertel  611: 	    }
1.4       www       612:         }
1.75      albertel  613:     }
1.84      www       614: # No active roles
                    615:     if ($countactive==0) {
                    616: 	if ($inrole) {
                    617: 	    $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
                    618: 	} else {
                    619: 	    $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
                    620: 	}
1.147     albertel  621: 	$r->print('</form>'.&Apache::loncommon::end_page());
1.84      www       622: 	return OK;
                    623: # Is there only one choice?
1.118     albertel  624:     } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84      www       625: 	$r->print('<h3>'.&mt('Please stand by.').'</h3>'.
                    626: 	    '<input type="hidden" name="'.$possiblerole.'" value="1" />');
                    627: 	$r->print("</form>\n");
                    628: 	$r->rflush();
                    629: 	$r->print('<script>document.forms.rolechoice.submit();</script>');
1.147     albertel  630: 	$r->print(&Apache::loncommon::end_page());
1.84      www       631: 	return OK;
                    632:     }
                    633: # More than one possible role
                    634: # ----------------------------------------------------------------------- Table
                    635:     unless (($advanced) || ($nochoose)) {
1.152     raeburn   636: 	$r->print("<h2>".&mt('Select a Course/Group to Enter')."</h2>\n");
1.84      www       637:     }
                    638:     $r->print('<br /><table><tr>');
                    639:     unless ($nochoose) { $r->print('<th>&nbsp;</th>'); }
1.121     albertel  640:     $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132     albertel  641:          '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76      albertel  642:     my $doheaders=-1;
1.152     raeburn   643:     foreach my $type ('Domain','Construction Space','Course','Group','Unavailable','System') {
1.76      albertel  644: 	my $haverole=0;
1.75      albertel  645: 	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
                    646: 	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
1.76      albertel  647: 		$haverole=1;
1.75      albertel  648: 	    }
1.76      albertel  649: 	}
                    650: 	if ($haverole) { $doheaders++; }
                    651:     }
1.111     albertel  652: 
1.118     albertel  653:     if ($env{'environment.recentroles'}) {
1.111     albertel  654:         my %recent_roles =
1.118     albertel  655:                &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111     albertel  656: 	my $output='';
                    657: 	foreach (sort(keys(%recent_roles))) {
                    658: 	    if (defined($roletext{'user.role.'.$_})) {
                    659: 		$output.=$roletext{'user.role.'.$_};
1.133     albertel  660:                 if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
1.138     raeburn   661: 		    $output .= &allcourses_row($1,'recent');
1.133     albertel  662:                 }
1.113     raeburn   663: 	    } elsif ($numdc > 0) {
                    664:                 unless ($_ =~/^error\:/) {
                    665:                     $output.=&display_cc_role('user.role.'.$_);
                    666:                 }
                    667:             } 
1.111     albertel  668: 	}
                    669: 	if ($output) {
1.132     albertel  670: 	    $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126     www       671: 		      &mt('Recent Roles')."</font></td>");
1.111     albertel  672: 	    $r->print($output);
                    673: 	    $r->print("</tr>");
1.114     raeburn   674:             $doheaders ++;
1.111     albertel  675: 	}
                    676:     }
                    677: 
1.104     raeburn   678:     if ($numdc > 0) {
1.112     raeburn   679:         $r->print(&coursepick_jscript());
                    680:         $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108     raeburn   681:     }
1.152     raeburn   682:     foreach my $type ('Construction Space','Domain','Course','Group','Unavailable','System') {
1.108     raeburn   683: 	my $output;
                    684: 	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
                    685: 	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
                    686: 		$output.=$roletext{$sortrole{$which}};
                    687:                 if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
                    688:                     if ($dcroles{$1}) {
1.138     raeburn   689:                         $output .= &allcourses_row($1,'');
1.104     raeburn   690:                     }
                    691:                 }
1.76      albertel  692: 	    }
1.108     raeburn   693: 	}
                    694: 	if ($output) {
                    695: 	    if ($doheaders > 0) {
1.126     www       696: 		$r->print("<tr>".
1.132     albertel  697: 			  "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76      albertel  698: 	    }
1.108     raeburn   699: 	    $r->print($output);	
                    700: 	}
1.4       www       701:     }
1.14      www       702:     my $tremark='';
1.47      www       703:     my $tfont='#003300';
1.118     albertel  704:     if ($env{'request.role'} eq 'cm') {
1.19      www       705: 	$r->print('<tr bgcolor="#11CC55">');
1.72      www       706:         $tremark=&mt('Currently selected. ');
1.47      www       707:         $tfont='#002200';
1.14      www       708:     } else {
                    709:         $r->print('<tr bgcolor="#77FF77">');
                    710:     }
                    711:     unless ($nochoose) {
1.118     albertel  712: 	if ($env{'request.role'} ne 'cm') {
1.134     www       713: 	    $r->print('<td><input type="submit" value="'.
1.72      www       714: 		      &mt('Select').'" name="cm"></td>');
1.55      albertel  715: 	} else {
                    716: 	    $r->print('<td>&nbsp;</td>');
                    717: 	}
1.14      www       718:     }
1.132     albertel  719:     $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
1.47      www       720:       '</font></td><td><font color="'.$tfont.'">'.$tremark.
                    721:       '&nbsp;</font></td></tr>'."\n");
1.4       www       722: 
                    723:     $r->print('</table>');
                    724:     unless ($nochoose) {
                    725: 	$r->print("</form>\n");
                    726:     }
1.22      harris41  727: # ------------------------------------------------------------ Privileges Info
1.118     albertel  728:     if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127     albertel  729: 	$r->print('<hr /><h2>Current Privileges</h2>');
1.4       www       730: 
1.118     albertel  731: 	foreach $envkey (sort keys %env) {
                    732: 	    if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
1.55      albertel  733: 		my $where=$envkey;
1.118     albertel  734: 		$where=~s/^user\.priv\.$env{'request.role'}\.//;
1.55      albertel  735: 		my $ttype;
                    736: 		my $twhere;
                    737: 		my ($tdom,$trest,$tsec)=
                    738: 		    split(/\//,Apache::lonnet::declutter($where));
                    739: 		if ($trest) {
1.118     albertel  740: 		    if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1.55      albertel  741: 			$ttype='Construction Space';
                    742: 			$twhere='User: '.$trest.', Domain: '.$tdom;
                    743: 		    } else {
1.157     albertel  744: 			$ttype= 
                    745: 			    &Apache::loncommon::course_type($tdom.'_'.$trest);
1.118     albertel  746: 			$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1.55      albertel  747: 			if ($tsec) {
1.152     raeburn   748: 			    $twhere.=' (Section: '.$tsec.')';
1.55      albertel  749: 			}
                    750: 		    }
                    751: 		} elsif ($tdom) {
                    752: 		    $ttype='Domain';
                    753: 		    $twhere=$tdom;
                    754: 		} else {
                    755: 		    $ttype='System';
                    756: 		    $twhere='/';
                    757: 		}
                    758: 		$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
1.118     albertel  759: 		foreach (sort split(/:/,$env{$envkey})) {
1.55      albertel  760: 		    if ($_) {
                    761: 			my ($prv,$restr)=split(/\&/,$_);
                    762: 			my $trestr='';
                    763: 			if ($restr ne 'F') {
                    764: 			    my $i;
                    765: 			    $trestr.=' (';
                    766: 			    for ($i=0;$i<length($restr);$i++) {
                    767: 				$trestr.=
                    768: 			       Apache::lonnet::plaintext(substr($restr,$i,1));
                    769: 				if ($i<length($restr)-1) { $trestr.=', '; }
                    770: 			    }
                    771: 			    $trestr.=')';
                    772: 			}
                    773: 			$r->print('<li>'.
                    774: 				  Apache::lonnet::plaintext($prv).$trestr.
                    775: 				  '</li>');
                    776: 		    }
                    777: 		}
                    778: 		$r->print('</ul>');
                    779: 	    }
                    780: 	}
1.4       www       781:     }
1.66      www       782:     $r->print(&Apache::lonnet::getannounce());
1.65      www       783:     if ($advanced) {
                    784: 	$r->print('<p><small><i>This is LON-CAPA '.
1.85      www       785: 		  $r->dir_config('lonVersion').'</i><br />'.
                    786: 		  '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65      www       787:     }
1.147     albertel  788:     $r->print(&Apache::loncommon::end_page());
1.1       harris41  789:     return OK;
1.102     raeburn   790: }
                    791: 
                    792: sub role_status {
                    793:     my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
                    794:     my @pwhere = ();
1.118     albertel  795:     if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102     raeburn   796:         (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
                    797:         unless (!defined($$role) || $$role eq '') {
                    798:             $$where=join('.',@pwhere);
                    799:             $$trolecode=$$role.'.'.$$where;
1.118     albertel  800:             ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102     raeburn   801:             $$tstatus='is';
1.105     raeburn   802:             if ($$tstart && $$tstart>$then) {
                    803: 		$$tstatus='future';
                    804: 		if ($$tstart<$now) { $$tstatus='will'; }
1.102     raeburn   805:             }
                    806:             if ($$tend) {
                    807:                 if ($$tend<$then) {
                    808:                     $$tstatus='expired';
1.103     raeburn   809:                 } elsif ($$tend<$now) {
1.104     raeburn   810:                     $$tstatus='will_not';
1.102     raeburn   811:                 }
                    812:             }
                    813:         }
                    814:     }
                    815: }
1.1       harris41  816: 
1.110     raeburn   817: sub build_roletext {
1.152     raeburn   818:     my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
1.127     albertel  819:     my $roletext='<tr bgcolor="'.$tbg.'">';
1.132     albertel  820:     my $is_dc=($trolecode =~ m/^dc\./);
                    821:     my $rowspan=($is_dc) ? ''
                    822:                          : ' rowspan="2" ';
                    823: 
1.110     raeburn   824:     unless ($nochoose) {
1.134     www       825:         my $buttonname=$trolecode;
                    826:         $buttonname=~s/\W//g;
1.110     raeburn   827:         if (!$button) {
                    828:             if ($switchserver) {
1.132     albertel  829:                 $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
1.110     raeburn   830:                 $switchserver.'">'.&mt('Switch Server').'</a></td>';
                    831:             } else {
                    832:                 $roletext.=('<td>&nbsp;</td>');
                    833:             }
                    834:         } elsif ($tstatus eq 'is') {
1.134     www       835:             $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    836:                         &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
                    837:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   838:         } elsif ($tryagain) {
                    839:             $roletext.=
1.134     www       840:                 '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    841:                 &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
                    842:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   843:         } elsif ($advanced) {
                    844:             $roletext.=
1.134     www       845:                 '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    846:                 &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
                    847:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   848:         } else {
1.132     albertel  849:             $roletext.='<td'.$rowspan.'>&nbsp;</td>';
1.110     raeburn   850:         }
                    851:     }
                    852:     $tremark.=&Apache::lonannounce::showday(time,1,
                    853:                  &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
                    854: 
                    855:     $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121     albertel  856: 	       '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110     raeburn   857:                '</font></td><td><font color="'.$tfont.'">'.$tpstart.
                    858:                '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132     albertel  859:                '</font></td></tr>';
                    860:     if (!$is_dc) {
                    861: 	$roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
                    862: 	    '&nbsp;</font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
                    863:     }
1.110     raeburn   864:     return $roletext;
                    865: }
                    866: 
                    867: sub check_privs {
1.146     raeburn   868:     my ($cdom,$cnum,$then,$now) = @_;
                    869:     my $cckey = 'user.role.cc./'.$cdom.'/'.$cnum; 
1.118     albertel  870:     if ($env{$cckey}) {
1.110     raeburn   871:         my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
                    872:         &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
                    873:         unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.146     raeburn   874:             &set_privileges($cdom,$cnum);
1.110     raeburn   875:         }
                    876:     } else {
1.146     raeburn   877:         &set_privileges($cdom,$cnum);
1.110     raeburn   878:     }
                    879: }
                    880: 
1.104     raeburn   881: sub check_fordc {
                    882:     my ($dcroles,$then) = @_;
                    883:     my $numdc = 0;
1.118     albertel  884:     if ($env{'user.adv'}) {
                    885:         foreach my $envkey (sort keys %env) {
1.104     raeburn   886:             if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
                    887:                 my $dcdom = $1;
                    888:                 my $livedc = 1;
1.118     albertel  889:                 my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105     raeburn   890:                 if ($tstart && $tstart>$then) { $livedc = 0; }
                    891:                 if ($tend   && $tend  <$then) { $livedc = 0; }
1.104     raeburn   892:                 if ($livedc) {
                    893:                     $$dcroles{$dcdom} = $envkey;
1.105     raeburn   894:                     $numdc++;
1.104     raeburn   895:                 }
                    896:             }
                    897:         }
                    898:     }
                    899:     return $numdc;
                    900: }
                    901: 
1.108     raeburn   902: sub courselink {
1.152     raeburn   903:     my ($dcdom,$rowtype,$selecttype) = @_;
1.109     raeburn   904:     my $courseform=&Apache::loncommon::selectcourse_link
1.152     raeburn   905:                    ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,
                    906:                     'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.
                    907:                     $dcdom,$dcdom,undef,$selecttype);
1.138     raeburn   908:     my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                    909:                       '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                    910:                       '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
                    911:                       '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112     raeburn   912:     return $courseform.$hiddenitems;
1.109     raeburn   913: }
                    914: 
                    915: sub coursepick_jscript {
1.104     raeburn   916:     my $verify_script = <<"END";
                    917: <script>
1.108     raeburn   918: function verifyCoursePick(caller) {
                    919:     var numbutton = getIndex(caller)
1.112     raeburn   920:     var pickedCourse = document.rolechoice.elements[numbutton+4].value
                    921:     var pickedDomain = document.rolechoice.elements[numbutton+2].value
                    922:     if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104     raeburn   923:         if (pickedCourse != '') {
1.108     raeburn   924:             if (numbutton != -1) {
                    925:                 var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
                    926:                 document.rolechoice.elements[numbutton+1].name = courseTarget
                    927:                 document.rolechoice.submit()
                    928:             }
1.104     raeburn   929:         }
                    930:         else {
1.114     raeburn   931:             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   932:         }
                    933:     }
                    934:     else {
                    935:         alert("You can only use this screen to select courses in the current domain")
                    936:     }
                    937: }
1.109     raeburn   938: function getIndex(caller) {
1.108     raeburn   939:     for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109     raeburn   940:         if (document.rolechoice.elements[i] == caller) {
1.108     raeburn   941:             return i;
                    942:         }
                    943:     }
                    944:     return -1;
                    945: }
1.104     raeburn   946: </script>
                    947: END
1.109     raeburn   948:     return $verify_script;
1.104     raeburn   949: }
                    950: 
1.109     raeburn   951: sub processpick {
                    952:     my $process_pick = <<"END";
                    953: <script>
                    954: function process_pick(dom) {
1.138     raeburn   955:     var pickedCourse=opener.document.rolechoice.$env{'form.cnumelement'}.value;
                    956:     var pickedDomain=opener.document.rolechoice.$env{'form.cdomelement'}.value;
                    957:     var okDomain = 0;
                    958: 
                    959:     if (pickedDomain == dom) {
1.109     raeburn   960:         if (pickedCourse != '') {
1.138     raeburn   961:             var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
                    962:             opener.document.title='Role selected. Please stand by.';
                    963:             opener.status='Role selected. Please stand by.';
                    964: 	    opener.document.rolechoice.newrole.value=courseTarget
                    965:             opener.document.rolechoice.submit()
1.109     raeburn   966:         }
1.138     raeburn   967:     } else {
                    968:         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   969:     }
                    970: }
                    971:  
                    972: </script>
                    973: END
                    974:     return $process_pick;
                    975: }
1.108     raeburn   976: 
1.113     raeburn   977: sub display_cc_role {
                    978:     my $rolekey = shift;
                    979:     my $roletext;
1.118     albertel  980:     my $advanced = $env{'user.adv'};
                    981:     my $tryagain = $env{'form.tryagain'};
1.113     raeburn   982:     unless ($rolekey =~/^error\:/) {
                    983:         if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
                    984:             my $tcourseid = $1.'_'.$2;
                    985:             my $trolecode = 'cc./'.$1.'/'.$2;
                    986:             my $twhere;
1.152     raeburn   987:             my $ttype;
1.113     raeburn   988:             my $tbg='#77FF77';
                    989:             my $tfont='#003300';
                    990:             my %newhash=&Apache::lonnet::coursedescription($tcourseid);
                    991:             if (%newhash) {
                    992:                 $twhere=$newhash{'description'}.
                    993:                         ' <font size="-2">'.
                    994:                         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
                    995:                         '</font>';
1.153     raeburn   996:                 $ttype = $newhash{'type'};
1.113     raeburn   997:             } else {
                    998:                 $twhere=&mt('Currently not available');
1.118     albertel  999:                 $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110     raeburn  1000:             }
1.153     raeburn  1001:             my $trole = &Apache::lonnet::plaintext('cc',$ttype);
1.113     raeburn  1002:             $twhere.="<br />".&mt('Domain').":".$1;
1.152     raeburn  1003:             $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,$twhere,'','','',1,'');
1.104     raeburn  1004:         }
                   1005:     }
1.152     raeburn  1006:     return ($roletext);
1.104     raeburn  1007: }
                   1008: 
1.108     raeburn  1009: sub allcourses_row {
1.138     raeburn  1010:     my ($dcdom,$rowtype) = @_;
1.132     albertel 1011:     my $output = '<tr bgcolor="#77FF77">'.
1.152     raeburn  1012:                  ' <td colspan="5">';
                   1013:     foreach my $type ('Course','Group') {
                   1014:         my $selectlink = &courselink($dcdom,$rowtype,$type);
1.153     raeburn  1015:         my $ccrole = &Apache::lonnet::plaintext('cc',$type);
1.152     raeburn  1016:         $output.= '<font color="#002200">'.$ccrole.'</font>'.
                   1017:               ' <b>'.$selectlink.'</b>'.
                   1018:               ' from '.&mt('Domain').' '.$dcdom.'<br />';
                   1019:     }
                   1020:     $output .= '</tr><tr><td colspan="5" height="3"></td></tr>'."\n";
1.108     raeburn  1021:     return $output;
                   1022: }
                   1023: 
1.104     raeburn  1024: sub recent_filename {
                   1025:     my $area=shift;
1.149     www      1026:     return 'nohist_recent_'.&escape($area);
1.104     raeburn  1027: }
                   1028: 
1.106     raeburn  1029: sub set_privileges {
                   1030:     my ($dcdom,$pickedcourse) = @_;
                   1031:     my $area = '/'.$dcdom.'/'.$pickedcourse;
                   1032:     my $role = 'cc';
                   1033:     my $spec = $role.'.'.$area;
1.154     albertel 1034:     my %userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
1.106     raeburn  1035:     my %ccrole = ();
                   1036:     &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.154     albertel 1037:     my ($author,$adv)= &Apache::lonnet::set_userprivs(\%userroles,\%ccrole);
                   1038:     &Apache::lonnet::appenv(%userroles);
1.118     albertel 1039:     &Apache::lonnet::log($env{'user.domain'},
                   1040:                          $env{'user.name'},
                   1041:                          $env{'user.home'},
1.106     raeburn  1042:                         "Role ".$role);
                   1043:     &Apache::lonnet::appenv(
1.146     raeburn  1044:                           'request.role'        => $spec,
1.106     raeburn  1045:                           'request.role.domain' => $dcdom,
                   1046:                           'request.course.sec'  => '');
                   1047:     my $tadv=0;
                   1048:     if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
                   1049:     &Apache::lonnet::appenv('request.role.adv'    => $tadv);
                   1050: }
                   1051: 
1.139     raeburn  1052: sub courseloadpage {
                   1053:     my ($courseid) = @_;
                   1054:     my $startpage;
1.144     albertel 1055:     my %entry_settings = &Apache::lonnet::get('nohist_whatsnew',
                   1056: 					      [$courseid.':courseinit']);
1.139     raeburn  1057:     my ($tmp) = %entry_settings;
1.144     albertel 1058:     unless ($tmp =~ /^error: 2 /) {
1.139     raeburn  1059:         $startpage = $entry_settings{$courseid.':courseinit'};
                   1060:     }
                   1061:     if ($startpage eq '') {
                   1062:         if (exists($env{'environment.course_init_display'})) {
                   1063:             $startpage = $env{'environment.course_init_display'};
                   1064:         }
                   1065:     }
                   1066:     return $startpage;
                   1067: }
                   1068: 
1.1       harris41 1069: 1;
                   1070: __END__
1.32      harris41 1071: 
                   1072: =head1 NAME
                   1073: 
                   1074: Apache::lonroles - User Roles Screen
                   1075: 
                   1076: =head1 SYNOPSIS
                   1077: 
                   1078: Invoked by /etc/httpd/conf/srm.conf:
                   1079: 
                   1080:  <Location /adm/roles>
                   1081:  PerlAccessHandler       Apache::lonacc
                   1082:  SetHandler perl-script
                   1083:  PerlHandler Apache::lonroles
                   1084:  ErrorDocument     403 /adm/login
                   1085:  ErrorDocument	  500 /adm/errorhandler
                   1086:  </Location>
1.64      bowersj2 1087: 
                   1088: =head1 OVERVIEW
                   1089: 
                   1090: =head2 Choosing Roles
                   1091: 
                   1092: C<lonroles> is a handler that allows a user to switch roles in
                   1093: mid-session. LON-CAPA attempts to work with "No Role Specified", the
                   1094: default role that a user has before selecting a role, as widely as
                   1095: possible, but certain handlers for example need specification which
                   1096: course they should act on, etc. Both in this scenario, and when the
                   1097: handler determines via C<lonnet>'s C<&allowed> function that a certain
                   1098: action is not allowed, C<lonroles> is used as error handler. This
                   1099: allows the user to select another role which may have permission to do
                   1100: what they were trying to do. C<lonroles> can also be accessed via the
                   1101: B<CRS> button in the Remote Control. 
                   1102: 
                   1103: =begin latex
                   1104: 
                   1105: \begin{figure}
                   1106: \begin{center}
                   1107: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
                   1108:   \caption{\label{Sample_Roles_Screen}Sample Roles Screen} 
                   1109: \end{center}
                   1110: \end{figure}
                   1111: 
                   1112: =end latex
                   1113: 
                   1114: =head2 Role Initialization
                   1115: 
                   1116: 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 1117: 
                   1118: =head1 INTRODUCTION
                   1119: 
                   1120: This module enables a user to select what role he wishes to
                   1121: operate under (instructor, student, teaching assistant, course
                   1122: coordinator, etc).  These roles are pre-established by the actions
                   1123: of upper-level users.
                   1124: 
                   1125: This is part of the LearningOnline Network with CAPA project
                   1126: described at http://www.lon-capa.org.
                   1127: 
                   1128: =head1 HANDLER SUBROUTINE
                   1129: 
                   1130: This routine is called by Apache and mod_perl.
                   1131: 
                   1132: =over 4
                   1133: 
                   1134: =item *
                   1135: 
                   1136: Roles Initialization (yes/no)
                   1137: 
                   1138: =item *
                   1139: 
                   1140: Get Error Message from Environment
                   1141: 
                   1142: =item *
                   1143: 
                   1144: Who is this?
                   1145: 
                   1146: =item *
                   1147: 
                   1148: Generate Page Output
                   1149: 
                   1150: =item *
                   1151: 
                   1152: Choice or no choice
                   1153: 
                   1154: =item *
                   1155: 
                   1156: Table
                   1157: 
                   1158: =item *
                   1159: 
                   1160: Privileges
                   1161: 
                   1162: =back
                   1163: 
                   1164: =cut

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