Annotation of loncom/auth/lonroles.pm, revision 1.141

1.1       harris41    1: # The LearningOnline Network with CAPA
                      2: # User Roles Screen
1.31      www         3: #
1.141   ! albertel    4: # $Id: lonroles.pm,v 1.140 2005/12/20 15:47:07 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: 	$navwindow.=&Apache::lonnavmaps::launch_win('now',undef,undef,
1.140     raeburn    54: 						  ($url =~ m-^/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: 				$furl = "/adm/helper/course.initialization.helper";
1.124     albertel  273: 				# Send the user to the course they selected
1.139     raeburn   274: 			    } elsif ($env{'request.course.fn'}) {
1.141   ! albertel  275:                                 if ($env{'request.role.adv'}) {
1.139     raeburn   276:                                     my $startpage = &courseloadpage($courseid);
                    277:                                     unless ($startpage eq 'firstres') {         
                    278: 				        $msg = &mt('Entering course ....');
                    279: 				        &redirect_user($r,&mt('New in course'),
                    280: 					     '/adm/whatsnew?refpage=start',$msg,
                    281: 					     $env{'environment.remotenavmap'});
                    282: 				        return OK;
                    283:                                     }
                    284:                                 }
1.58      bowersj2  285: 			    }
1.124     albertel  286: 			    &redirect_user($r,&mt('Entering Course'),
1.95      albertel  287:                                            $furl,$msg,
1.118     albertel  288: 					   $env{'environment.remotenavmap'});
1.124     albertel  289: 			    return OK;
1.55      albertel  290: 			}
                    291: 		    }
1.62      matthew   292:                     #
                    293:                     # Send the user to the construction space they selected
1.125     www       294:                     if ($role =~ /^(au|ca|aa)$/) {
1.62      matthew   295:                         my $redirect_url = '/priv/';
                    296:                         if ($role eq 'au') {
1.118     albertel  297:                             $redirect_url.=$env{'user.name'};
1.62      matthew   298:                         } else {
                    299:                             $where =~ /\/(.*)$/;
                    300:                             $redirect_url .= $1;
                    301:                         }
                    302:                         $redirect_url .= '/';
1.78      sakharuk  303:                         &redirect_user($r,&mt('Entering Construction Space'),
1.62      matthew   304:                                        $redirect_url);
                    305:                         return OK;
                    306:                     }
1.104     raeburn   307:                     if ($role eq 'dc') {
1.108     raeburn   308:                         my $redirect_url = '/adm/menu/';
                    309:                         &redirect_user($r,&mt('Loading Domain Coordinator Menu'),
1.104     raeburn   310:                                        $redirect_url);
1.108     raeburn   311:                         return OK;
1.104     raeburn   312:                     }
1.55      albertel  313: 		}
                    314:             }
1.6       www       315:         }
1.40      matthew   316:     }
1.44      www       317: 
1.10      www       318: 
1.6       www       319: # =============================================================== No Roles Init
1.10      www       320: 
1.73      www       321:     &Apache::loncommon::content_type($r,'text/html');
1.30      albertel  322:     &Apache::loncommon::no_cache($r);
1.10      www       323:     $r->send_http_header;
                    324:     return OK if $r->header_only;
                    325: 
1.52      www       326:     my $swinfo=&Apache::lonmenu::rawconfig();
1.41      www       327:     my $bodytag=&Apache::loncommon::bodytag('User Roles');
1.134     www       328:     my $standby=&mt('Role selected. Please stand by.');
1.135     albertel  329:     $standby=~s/\n/\\n/g;
1.94      albertel  330:     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       331:     $r->print(<<ENDHEADER);
                    332: <html>
                    333: <head>
                    334: <title>LON-CAPA User Roles</title>
1.41      www       335: </head>
                    336: $bodytag
1.45      www       337: $helptag<br />
1.26      www       338: <script>
                    339: $swinfo
                    340: window.focus();
1.134     www       341: 
                    342: active=true;
                    343: 
                    344: function enterrole (thisform,rolecode,buttonname) {
                    345:     if (active) {
                    346: 	active=false;
                    347:         document.title='$standby';
                    348:         window.status='$standby';
                    349: 	thisform.newrole.value=rolecode;
                    350: 	thisform.submit();
                    351:     } else {
                    352:        alert('$standby');
                    353:     }   
                    354: }
1.26      www       355: </script>
1.10      www       356: ENDHEADER
1.6       www       357: 
1.2       www       358: # ------------------------------------------ Get Error Message from Environment
                    359: 
1.118     albertel  360:     my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$env{'user.error.msg'});
                    361:     if ($env{'user.error.msg'}) {
1.55      albertel  362: 	$r->log_reason(
1.118     albertel  363:    "$msg for $env{'user.name'} domain $env{'user.domain'} access $priv",$fn);
1.12      www       364:     }
1.1       harris41  365: 
1.61      www       366: # ------------------------------------------------- Can this user re-init, etc?
1.6       www       367: 
1.118     albertel  368:     my $advanced=$env{'user.adv'};
1.61      www       369:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['tryagain']);
1.118     albertel  370:     my $tryagain=$env{'form.tryagain'};
1.6       www       371: 
1.2       www       372: # -------------------------------------------------------- Generate Page Output
1.6       www       373: # --------------------------------------------------------------- Error Header?
1.2       www       374:     if ($error) {
                    375: 	$r->print("<h1>LON-CAPA Access Control</h1>");
1.126     www       376:         $r->print("<!-- LONCAPAACCESSCONTROLERRORSCREEN --><hr /><pre>Access  : ".
1.4       www       377:                   Apache::lonnet::plaintext($priv)."\n");
1.115     albertel  378:         $r->print("Resource: ".&Apache::lonenc::check_encrypt($fn)."\n");
1.120     albertel  379:         $r->print("Action  : $msg\n</pre><hr />");
                    380: 	my $url=$fn;
                    381: 	my $last;
                    382: 	if (tie(my %hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
                    383: 		&GDBM_READER(),0640)) {
                    384: 	    $last=$hash{'last_known'};
                    385: 	    untie(%hash);
                    386: 	}
                    387: 	if ($last) { $fn.='?symb='.&Apache::lonnet::escape($last); }
                    388: 
                    389: 	&Apache::londocs::changewarning($r,undef,'You have modified your course recently, [_1] may fix this access problem.',
                    390: 					&Apache::lonenc::check_encrypt($fn));
1.2       www       391:     } else {
1.118     albertel  392:         if ($env{'user.error.msg'}) {
1.25      www       393: 	    $r->print(
1.131     albertel  394:  '<h3><font color="red">'.
1.72      www       395:  &mt('You need to choose another user role or enter a specific course for this function').'</font></h3>');
1.25      www       396: 	}
1.2       www       397:     }
1.6       www       398: # -------------------------------------------------------- Choice or no choice?
1.2       www       399:     if ($nochoose) {
1.6       www       400:         if ($advanced) {
1.72      www       401: 	    $r->print("<h2>".&mt('Assigned User Roles')."</h2>\n");
1.6       www       402:         } else {
1.72      www       403: 	    $r->print("<h2>".&mt('Sorry ...')."</h2>\n".
                    404: 		      &mt('This resource might be part of'));
1.118     albertel  405: 	    if ($env{'request.course.id'}) {
1.72      www       406: 		$r->print(&mt(' another'));
1.55      albertel  407: 	    } else {
1.72      www       408: 		$r->print(&mt(' a certain'));
1.55      albertel  409: 	    } 
1.72      www       410: 	    $r->print(&mt(' course.').'</body></html>');
1.55      albertel  411: 	    return OK;
1.6       www       412:         } 
                    413:     } else {
                    414:         if ($advanced) {
1.72      www       415: 	    $r->print(&mt("Your home server is ").
1.55      albertel  416: 		      $Apache::lonnet::hostname{&Apache::lonnet::homeserver
1.118     albertel  417:                       ($env{'user.name'},$env{'user.domain'})}.
1.55      albertel  418: 		      "<br />\n");
1.72      www       419: 	    $r->print(&mt(
1.126     www       420:       "Author and Co-Author roles are not available on servers other than their respective home servers."));
1.17      www       421:         }
1.18      www       422:         if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
                    423:     	    $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
1.6       www       424:         }
1.84      www       425:         $r->print('<form method="post" name="rolechoice" action="'.(($fn)?$fn:$r->uri).'">');
1.116     albertel  426:         $r->print('<input type="hidden" name="orgurl" value="'.$fn.'" />');
                    427:         $r->print('<input type="hidden" name="selectrole" value="1" />');
1.134     www       428:         $r->print('<input type="hidden" name="newrole" value="" />');
1.6       www       429:     }
1.118     albertel  430:     if ($env{'user.adv'}) {
1.63      www       431: 	$r->print(
1.116     albertel  432: 	      '<br /><label>'.&mt('Show all roles').': <input type="checkbox" name="showall"');
1.118     albertel  433: 	if ($env{'form.showall'}) { $r->print(' checked="checked" '); }
1.116     albertel  434: 	$r->print(' /></label><input type="submit" value="'.&mt('Display').'" />');
1.63      www       435:     }
1.4       www       436: 
1.75      albertel  437:     my (%roletext,%sortrole,%roleclass);
1.84      www       438:     my $countactive=0;
                    439:     my $inrole=0;
                    440:     my $possiblerole='';
1.118     albertel  441:     foreach $envkey (sort keys %env) {
1.35      matthew   442:         my $button = 1;
1.49      www       443:         my $switchserver='';
1.75      albertel  444: 	my $roletext;
                    445: 	my $sortkey;
1.2       www       446:         if ($envkey=~/^user\.role\./) {
1.102     raeburn   447:             my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
                    448:             &role_status($envkey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.136     raeburn   449:             next if (!defined($role) || $role eq '' || $role =~ /^gr/);
1.102     raeburn   450:             $tremark='';
                    451:             $tpstart='&nbsp;';
                    452:             $tpend='&nbsp;';
                    453:             $tfont='#000000';
1.4       www       454:             if ($tstart) {
1.74      www       455:                 $tpstart=&Apache::lonlocal::locallocaltime($tstart);
1.4       www       456:             }
                    457:             if ($tend) {
1.74      www       458:                 $tpend=&Apache::lonlocal::locallocaltime($tend);
1.4       www       459:             }
1.118     albertel  460:             if ($env{'request.role'} eq $trolecode) {
1.6       www       461: 		$tstatus='selected';
                    462:             }
1.4       www       463:             my $tbg;
1.35      matthew   464:             if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
1.118     albertel  465:                 ($env{'form.showall'})) {
1.35      matthew   466:                 if ($tstatus eq 'is') {
                    467:                     $tbg='#77FF77';
1.47      www       468:                     $tfont='#003300';
1.84      www       469: 		    $possiblerole=$trolecode;
                    470: 		    $countactive++;
1.35      matthew   471:                 } elsif ($tstatus eq 'future') {
                    472:                     $tbg='#FFFF77';
1.49      www       473:                     $button=0;
1.35      matthew   474:                 } elsif ($tstatus eq 'will') {
                    475:                     $tbg='#FFAA77';
1.72      www       476:                     $tremark.=&mt('Active at next login. ');
1.35      matthew   477:                 } elsif ($tstatus eq 'expired') {
                    478:                     $tbg='#FF7777';
1.47      www       479:                     $tfont='#330000';
1.49      www       480:                     $button=0;
1.35      matthew   481:                 } elsif ($tstatus eq 'will_not') {
                    482:                     $tbg='#AAFF77';
1.72      www       483:                     $tremark.=&mt('Expired after logout. ');
1.35      matthew   484:                 } elsif ($tstatus eq 'selected') {
                    485:                     $tbg='#11CC55';
1.47      www       486:                     $tfont='#002200';
1.84      www       487: 		    $inrole=1;
1.86      albertel  488: 		    $countactive++;
1.72      www       489:                     $tremark.=&mt('Currently selected. ');
1.35      matthew   490:                 }
                    491:                 my $trole;
                    492:                 if ($role =~ /^cr\//) {
                    493:                     my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
1.132     albertel  494: 		    if ($tremark) { $tremark.='<br />'; }
                    495:                     $tremark.=&mt('Defined by ').$rauthor.
1.72      www       496: 			&mt(' at ').$rdomain.'.';
1.35      matthew   497:                     $trole=$rrole;
1.8       www       498:                 } else {
1.35      matthew   499:                     $trole=Apache::lonnet::plaintext($role);
                    500:                 }
                    501:                 my $ttype;
                    502:                 my $twhere;
                    503:                 my ($tdom,$trest,$tsection)=
                    504:                     split(/\//,Apache::lonnet::declutter($where));
                    505:                 # First, Co-Authorship roles
1.125     www       506:                 if (($role eq 'ca') || ($role eq 'aa')) {
1.39      stredwic  507:                     my $home = &Apache::lonnet::homeserver($trest,$tdom);
1.83      albertel  508: 		    my $allowed=0;
                    509: 		    my @ids=&Apache::lonnet::current_machine_ids();
                    510: 		    foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
                    511:                     if (!$allowed) {
1.49      www       512: 			$button=0;
1.130     albertel  513:                         $switchserver='otherserver='.$home.'&role='.$trolecode;
1.49      www       514:                     }
1.35      matthew   515:                     #next if ($home eq 'no_host');
                    516:                     $home = $Apache::lonnet::hostname{$home};
1.78      sakharuk  517:                     $ttype='Construction Space';
1.72      www       518:                     $twhere=&mt('User').': '.$trest.'<br />'.&mt('Domain').
                    519: 			': '.$tdom.'<br />'.
                    520:                         ' '.&mt('Server').':&nbsp;'.$home;
1.118     albertel  521:                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
1.82      www       522: 		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$trest.'/');
1.75      albertel  523: 		    $sortkey=$role."$trest:$tdom";
1.35      matthew   524:                 } elsif ($role eq 'au') {
                    525:                     # Authors
                    526:                     my $home = &Apache::lonnet::homeserver
1.118     albertel  527:                         ($env{'user.name'},$env{'user.domain'});
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;
1.51      www       533:                         $switchserver=&Apache::lonnet::escape('http://'.
                    534:                          $Apache::lonnet::hostname{$home}.
1.118     albertel  535:                           '/adm/login?domain='.$env{'user.domain'}.
                    536: 			   '&username='.$env{'user.name'}.
                    537:                            '&firsturl=/priv/'.$env{'user.name'}.'/');
1.49      www       538:                     }
1.35      matthew   539:                     #next if ($home eq 'no_host');
                    540:                     $home = $Apache::lonnet::hostname{$home};
1.78      sakharuk  541:                     $ttype='Construction Space';
1.72      www       542:                     $twhere=&mt('Domain').': '.$tdom.'<br />'.&mt('Server').
                    543: 			':&nbsp;'.$home;
1.118     albertel  544:                     $env{'course.'.$tdom.'_'.$trest.'.description'}='ca';
                    545: 		    $tremark.=&Apache::lonhtmlcommon::authorbombs('/res/'.$tdom.'/'.$env{'user.name'}.'/');
1.75      albertel  546: 		    $sortkey=$role;
1.35      matthew   547:                 } elsif ($trest) {
1.78      sakharuk  548:                     $ttype='Course';
1.35      matthew   549:                     my $tcourseid=$tdom.'_'.$trest;
1.118     albertel  550:                     if ($env{'course.'.$tcourseid.'.description'}) {
                    551:                         $twhere=$env{'course.'.$tcourseid.'.description'};
1.80      albertel  552: 			$sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.72      www       553:                         unless ($twhere eq &mt('Currently not available')) {
1.55      albertel  554: 			    $twhere.=' <font size="-2">'.
1.72      www       555:         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49      www       556:                                     '</font>';
1.55      albertel  557: 			}
1.8       www       558:                     } else {
1.105     raeburn   559:                         my %newhash=&Apache::lonnet::coursedescription($tcourseid);
1.35      matthew   560:                         if (%newhash) {
1.80      albertel  561: 			    $sortkey=$role."\0".$tdom."\0".$newhash{'description'}.
1.77      albertel  562: 				"\0".$envkey;
1.49      www       563:                             $twhere=$newhash{'description'}.
                    564:                               ' <font size="-2">'.
1.72      www       565:         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$trest,$tdom,$tfont).
1.49      www       566:                               '</font>';
1.35      matthew   567:                         } else {
1.72      www       568:                             $twhere=&mt('Currently not available');
1.118     albertel  569:                             $env{'course.'.$tcourseid.'.description'}=$twhere;
1.80      albertel  570: 			    $sortkey=$role."\0".$tdom."\0".$twhere."\0".$envkey;
1.35      matthew   571:                         }
1.8       www       572:                     }
1.121     albertel  573:                     if ($tsection) {
                    574:                         $twhere.='<br />'.&mt('Section/Group').': '.$tsection;
                    575: 		    }
                    576: 
1.72      www       577: 		    if ($role ne 'st') { $twhere.="<br />".&mt('Domain').":".$tdom; }
1.35      matthew   578:                 } elsif ($tdom) {
1.78      sakharuk  579:                     $ttype='Domain';
1.35      matthew   580:                     $twhere=$tdom;
1.75      albertel  581: 		    $sortkey=$role.$twhere;
1.35      matthew   582:                 } else {
1.78      sakharuk  583:                     $ttype='System';
1.72      www       584:                     $twhere=&mt('system wide');
1.75      albertel  585: 		    $sortkey=$role.$twhere;
1.13      www       586:                 }
1.35      matthew   587:  
1.127     albertel  588:                 $roletext.=&build_roletext($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver);
1.75      albertel  589: 		$roletext{$envkey}=$roletext;
                    590: 		if (!$sortkey) {$sortkey=$twhere."\0".$envkey;}
                    591: 		$sortrole{$sortkey}=$envkey;
                    592: 		$roleclass{$envkey}=$ttype;
1.55      albertel  593: 	    }
1.4       www       594:         }
1.75      albertel  595:     }
1.84      www       596: # No active roles
                    597:     if ($countactive==0) {
                    598: 	if ($inrole) {
                    599: 	    $r->print('<h2>'.&mt('Currently no additional roles or courses').'</h2>');
                    600: 	} else {
                    601: 	    $r->print('<h2>'.&mt('Currently no active roles or courses').'</h2>');
                    602: 	}
                    603: 	$r->print('</form></body></html>');
                    604: 	return OK;
                    605: # Is there only one choice?
1.118     albertel  606:     } elsif (($countactive==1) && ($env{'request.role'} eq 'cm')) {
1.84      www       607: 	$r->print('<h3>'.&mt('Please stand by.').'</h3>'.
                    608: 	    '<input type="hidden" name="'.$possiblerole.'" value="1" />');
                    609: 	$r->print("</form>\n");
                    610: 	$r->rflush();
                    611: 	$r->print('<script>document.forms.rolechoice.submit();</script>');
                    612: 	$r->print('</body></html>');
                    613: 	return OK;
                    614:     }
                    615: # More than one possible role
                    616: # ----------------------------------------------------------------------- Table
                    617:     unless (($advanced) || ($nochoose)) {
                    618: 	$r->print("<h2>".&mt('Select a Course to Enter')."</h2>\n");
                    619:     }
                    620:     $r->print('<br /><table><tr>');
                    621:     unless ($nochoose) { $r->print('<th>&nbsp;</th>'); }
1.121     albertel  622:     $r->print('<th>'.&mt('User Role').'</th><th>'.&mt('Extent').
1.132     albertel  623:          '</th><th>'.&mt('Start').'</th><th>'.&mt('End').'</th></tr>'."\n");
1.76      albertel  624:     my $doheaders=-1;
1.129     albertel  625:     foreach my $type ('Domain','Construction Space','Course','System') {
1.76      albertel  626: 	my $haverole=0;
1.75      albertel  627: 	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
                    628: 	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
1.76      albertel  629: 		$haverole=1;
1.75      albertel  630: 	    }
1.76      albertel  631: 	}
                    632: 	if ($haverole) { $doheaders++; }
                    633:     }
1.111     albertel  634: 
1.118     albertel  635:     if ($env{'environment.recentroles'}) {
1.111     albertel  636:         my %recent_roles =
1.118     albertel  637:                &Apache::lonhtmlcommon::get_recent('roles',$env{'environment.recentrolesn'});
1.111     albertel  638: 	my $output='';
                    639: 	foreach (sort(keys(%recent_roles))) {
                    640: 	    if (defined($roletext{'user.role.'.$_})) {
                    641: 		$output.=$roletext{'user.role.'.$_};
1.133     albertel  642:                 if ($_ =~ m-dc\./(\w+)/- && $dcroles{$1}) {
1.138     raeburn   643: 		    $output .= &allcourses_row($1,'recent');
1.133     albertel  644:                 }
1.113     raeburn   645: 	    } elsif ($numdc > 0) {
                    646:                 unless ($_ =~/^error\:/) {
                    647:                     $output.=&display_cc_role('user.role.'.$_);
                    648:                 }
                    649:             } 
1.111     albertel  650: 	}
                    651: 	if ($output) {
1.132     albertel  652: 	    $r->print("<tr><td align='center' colspan='5'><font face='arial'>".
1.126     www       653: 		      &mt('Recent Roles')."</font></td>");
1.111     albertel  654: 	    $r->print($output);
                    655: 	    $r->print("</tr>");
1.114     raeburn   656:             $doheaders ++;
1.111     albertel  657: 	}
                    658:     }
                    659: 
1.104     raeburn   660:     if ($numdc > 0) {
1.112     raeburn   661:         $r->print(&coursepick_jscript());
                    662:         $r->print(&Apache::loncommon::coursebrowser_javascript());
1.108     raeburn   663:     }
1.132     albertel  664:     foreach my $type ('Construction Space','Domain','Course','System') {
1.108     raeburn   665: 	my $output;
                    666: 	foreach my $which (sort {uc($a) cmp uc($b)} (keys(%sortrole))) {
                    667: 	    if ($roleclass{$sortrole{$which}} =~ /^\Q$type\E/) { 
                    668: 		$output.=$roletext{$sortrole{$which}};
                    669:                 if ($sortrole{$which} =~ m-dc\./(\w+)/-) {
                    670:                     if ($dcroles{$1}) {
1.138     raeburn   671:                         $output .= &allcourses_row($1,'');
1.104     raeburn   672:                     }
                    673:                 }
1.76      albertel  674: 	    }
1.108     raeburn   675: 	}
                    676: 	if ($output) {
                    677: 	    if ($doheaders > 0) {
1.126     www       678: 		$r->print("<tr>".
1.132     albertel  679: 			  "<td align='center' colspan='5'><font face='arial'>".&mt($type)."</font></td></tr>");
1.76      albertel  680: 	    }
1.108     raeburn   681: 	    $r->print($output);	
                    682: 	}
1.4       www       683:     }
1.14      www       684:     my $tremark='';
1.47      www       685:     my $tfont='#003300';
1.118     albertel  686:     if ($env{'request.role'} eq 'cm') {
1.19      www       687: 	$r->print('<tr bgcolor="#11CC55">');
1.72      www       688:         $tremark=&mt('Currently selected. ');
1.47      www       689:         $tfont='#002200';
1.14      www       690:     } else {
                    691:         $r->print('<tr bgcolor="#77FF77">');
                    692:     }
                    693:     unless ($nochoose) {
1.118     albertel  694: 	if ($env{'request.role'} ne 'cm') {
1.134     www       695: 	    $r->print('<td><input type="submit" value="'.
1.72      www       696: 		      &mt('Select').'" name="cm"></td>');
1.55      albertel  697: 	} else {
                    698: 	    $r->print('<td>&nbsp;</td>');
                    699: 	}
1.14      www       700:     }
1.132     albertel  701:     $r->print('<td colspan="3"><font color="'.$tfont.'">'.&mt('No role specified').
1.47      www       702:       '</font></td><td><font color="'.$tfont.'">'.$tremark.
                    703:       '&nbsp;</font></td></tr>'."\n");
1.4       www       704: 
                    705:     $r->print('</table>');
                    706:     unless ($nochoose) {
                    707: 	$r->print("</form>\n");
                    708:     }
1.22      harris41  709: # ------------------------------------------------------------ Privileges Info
1.118     albertel  710:     if (($advanced) && (($env{'user.error.msg'}) || ($error))) {
1.127     albertel  711: 	$r->print('<hr /><h2>Current Privileges</h2>');
1.4       www       712: 
1.118     albertel  713: 	foreach $envkey (sort keys %env) {
                    714: 	    if ($envkey=~/^user\.priv\.$env{'request.role'}\./) {
1.55      albertel  715: 		my $where=$envkey;
1.118     albertel  716: 		$where=~s/^user\.priv\.$env{'request.role'}\.//;
1.55      albertel  717: 		my $ttype;
                    718: 		my $twhere;
                    719: 		my ($tdom,$trest,$tsec)=
                    720: 		    split(/\//,Apache::lonnet::declutter($where));
                    721: 		if ($trest) {
1.118     albertel  722: 		    if ($env{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
1.55      albertel  723: 			$ttype='Construction Space';
                    724: 			$twhere='User: '.$trest.', Domain: '.$tdom;
                    725: 		    } else {
                    726: 			$ttype='Course';
1.118     albertel  727: 			$twhere=$env{'course.'.$tdom.'_'.$trest.'.description'};
1.55      albertel  728: 			if ($tsec) {
                    729: 			    $twhere.=' (Section/Group: '.$tsec.')';
                    730: 			}
                    731: 		    }
                    732: 		} elsif ($tdom) {
                    733: 		    $ttype='Domain';
                    734: 		    $twhere=$tdom;
                    735: 		} else {
                    736: 		    $ttype='System';
                    737: 		    $twhere='/';
                    738: 		}
                    739: 		$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
1.118     albertel  740: 		foreach (sort split(/:/,$env{$envkey})) {
1.55      albertel  741: 		    if ($_) {
                    742: 			my ($prv,$restr)=split(/\&/,$_);
                    743: 			my $trestr='';
                    744: 			if ($restr ne 'F') {
                    745: 			    my $i;
                    746: 			    $trestr.=' (';
                    747: 			    for ($i=0;$i<length($restr);$i++) {
                    748: 				$trestr.=
                    749: 			       Apache::lonnet::plaintext(substr($restr,$i,1));
                    750: 				if ($i<length($restr)-1) { $trestr.=', '; }
                    751: 			    }
                    752: 			    $trestr.=')';
                    753: 			}
                    754: 			$r->print('<li>'.
                    755: 				  Apache::lonnet::plaintext($prv).$trestr.
                    756: 				  '</li>');
                    757: 		    }
                    758: 		}
                    759: 		$r->print('</ul>');
                    760: 	    }
                    761: 	}
1.4       www       762:     }
1.66      www       763:     $r->print(&Apache::lonnet::getannounce());
1.65      www       764:     if ($advanced) {
                    765: 	$r->print('<p><small><i>This is LON-CAPA '.
1.85      www       766: 		  $r->dir_config('lonVersion').'</i><br />'.
                    767: 		  '<a href="/adm/logout">'.&mt('Logout').'</a></small></p>');
1.65      www       768:     }
1.1       harris41  769:     $r->print("</body></html>\n");
                    770:     return OK;
1.102     raeburn   771: }
                    772: 
                    773: sub role_status {
                    774:     my ($rolekey,$then,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
                    775:     my @pwhere = ();
1.118     albertel  776:     if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.102     raeburn   777:         (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
                    778:         unless (!defined($$role) || $$role eq '') {
                    779:             $$where=join('.',@pwhere);
                    780:             $$trolecode=$$role.'.'.$$where;
1.118     albertel  781:             ($$tstart,$$tend)=split(/\./,$env{$rolekey});
1.102     raeburn   782:             $$tstatus='is';
1.105     raeburn   783:             if ($$tstart && $$tstart>$then) {
                    784: 		$$tstatus='future';
                    785: 		if ($$tstart<$now) { $$tstatus='will'; }
1.102     raeburn   786:             }
                    787:             if ($$tend) {
                    788:                 if ($$tend<$then) {
                    789:                     $$tstatus='expired';
1.103     raeburn   790:                 } elsif ($$tend<$now) {
1.104     raeburn   791:                     $$tstatus='will_not';
1.102     raeburn   792:                 }
                    793:             }
                    794:         }
                    795:     }
                    796: }
1.1       harris41  797: 
1.110     raeburn   798: sub build_roletext {
1.127     albertel  799:     my ($trolecode,$tdom,$trest,$tstatus,$tryagain,$advanced,$tremark,$tbg,$tfont,$trole,$ttype,$twhere,$tpstart,$tpend,$nochoose,$button,$switchserver) = @_;
                    800:     my $roletext='<tr bgcolor="'.$tbg.'">';
1.132     albertel  801:     my $is_dc=($trolecode =~ m/^dc\./);
                    802:     my $rowspan=($is_dc) ? ''
                    803:                          : ' rowspan="2" ';
                    804: 
1.110     raeburn   805:     unless ($nochoose) {
1.134     www       806:         my $buttonname=$trolecode;
                    807:         $buttonname=~s/\W//g;
1.110     raeburn   808:         if (!$button) {
                    809:             if ($switchserver) {
1.132     albertel  810:                 $roletext.='<td'.$rowspan.'><a href="/adm/switchserver?'.
1.110     raeburn   811:                 $switchserver.'">'.&mt('Switch Server').'</a></td>';
                    812:             } else {
                    813:                 $roletext.=('<td>&nbsp;</td>');
                    814:             }
                    815:         } elsif ($tstatus eq 'is') {
1.134     www       816:             $roletext.='<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    817:                         &mt('Select').'" onClick="javascript:enterrole(this.form,\''.
                    818:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   819:         } elsif ($tryagain) {
                    820:             $roletext.=
1.134     www       821:                 '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    822:                 &mt('Try Selecting Again').'" onClick="javascript:enterrole(this.form,\''.
                    823:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   824:         } elsif ($advanced) {
                    825:             $roletext.=
1.134     www       826:                 '<td'.$rowspan.'><input name="'.$buttonname.'" type="button" value="'.
                    827:                 &mt('Re-Initialize').'" onClick="javascript:enterrole(this.form,\''.
                    828:                         $trolecode."','".$buttonname.'\');"></td>';
1.110     raeburn   829:         } else {
1.132     albertel  830:             $roletext.='<td'.$rowspan.'>&nbsp;</td>';
1.110     raeburn   831:         }
                    832:     }
                    833:     $tremark.=&Apache::lonannounce::showday(time,1,
                    834:                  &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
                    835: 
                    836:     $roletext.='<td><font color="'.$tfont.'">'.$trole.
1.121     albertel  837: 	       '</font></td><td><font color="'.$tfont.'">'.$twhere.
1.110     raeburn   838:                '</font></td><td><font color="'.$tfont.'">'.$tpstart.
                    839:                '</font></td><td><font color="'.$tfont.'">'.$tpend.
1.132     albertel  840:                '</font></td></tr>';
                    841:     if (!$is_dc) {
                    842: 	$roletext.='<tr bgcolor="'.$tbg.'"><td colspan="4"><font color="'.$tfont.'">'.$tremark.
                    843: 	    '&nbsp;</font></td></tr><tr><td colspan="5" height="3"></td></tr>'."\n";
                    844:     }
1.110     raeburn   845:     return $roletext;
                    846: }
                    847: 
                    848: sub check_privs {
                    849:     my ($cckey,$then,$now) = @_;
1.118     albertel  850:     if ($env{$cckey}) {
1.110     raeburn   851:         my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend,$tfont);
                    852:         &role_status($cckey,$then,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
                    853:         unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
                    854:             &set_privileges($1,$2);
                    855:         }
                    856:     } else {
                    857:         &set_privileges($1,$2);
                    858:     }
                    859: }
                    860: 
1.104     raeburn   861: sub check_fordc {
                    862:     my ($dcroles,$then) = @_;
                    863:     my $numdc = 0;
1.118     albertel  864:     if ($env{'user.adv'}) {
                    865:         foreach my $envkey (sort keys %env) {
1.104     raeburn   866:             if ($envkey=~/^user\.role\.dc\.\/(\w+)\/$/) {
                    867:                 my $dcdom = $1;
                    868:                 my $livedc = 1;
1.118     albertel  869:                 my ($tstart,$tend)=split(/\./,$env{$envkey});
1.105     raeburn   870:                 if ($tstart && $tstart>$then) { $livedc = 0; }
                    871:                 if ($tend   && $tend  <$then) { $livedc = 0; }
1.104     raeburn   872:                 if ($livedc) {
                    873:                     $$dcroles{$dcdom} = $envkey;
1.105     raeburn   874:                     $numdc++;
1.104     raeburn   875:                 }
                    876:             }
                    877:         }
                    878:     }
                    879:     return $numdc;
                    880: }
                    881: 
1.108     raeburn   882: sub courselink {
1.138     raeburn   883:     my ($dcdom,$rowtype) = @_;
1.109     raeburn   884:     my $courseform=&Apache::loncommon::selectcourse_link
1.138     raeburn   885:                      ('rolechoice','dccourse'.$rowtype.'_'.$dcdom,'dcdomain'.$rowtype.'_'.$dcdom,'coursedesc'.$rowtype.'_'.$dcdom,$dcdom);
                    886:     my $hiddenitems = '<input type="hidden" name="dcdomain'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                    887:                       '<input type="hidden" name="origdom'.$rowtype.'_'.$dcdom.'" value="'.$dcdom.'" />'.
                    888:                       '<input type="hidden" name="dccourse'.$rowtype.'_'.$dcdom.'" value="" />'.
                    889:                       '<input type="hidden" name="coursedesc'.$rowtype.'_'.$dcdom.'" value="" />';
1.112     raeburn   890:     return $courseform.$hiddenitems;
1.109     raeburn   891: }
                    892: 
                    893: sub coursepick_jscript {
1.104     raeburn   894:     my $verify_script = <<"END";
                    895: <script>
1.108     raeburn   896: function verifyCoursePick(caller) {
                    897:     var numbutton = getIndex(caller)
1.112     raeburn   898:     var pickedCourse = document.rolechoice.elements[numbutton+4].value
                    899:     var pickedDomain = document.rolechoice.elements[numbutton+2].value
                    900:     if (document.rolechoice.elements[numbutton+2].value == document.rolechoice.elements[numbutton+3].value) {
1.104     raeburn   901:         if (pickedCourse != '') {
1.108     raeburn   902:             if (numbutton != -1) {
                    903:                 var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
                    904:                 document.rolechoice.elements[numbutton+1].name = courseTarget
                    905:                 document.rolechoice.submit()
                    906:             }
1.104     raeburn   907:         }
                    908:         else {
1.114     raeburn   909:             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   910:         }
                    911:     }
                    912:     else {
                    913:         alert("You can only use this screen to select courses in the current domain")
                    914:     }
                    915: }
1.109     raeburn   916: function getIndex(caller) {
1.108     raeburn   917:     for (var i=0;i<document.rolechoice.elements.length;i++) {
1.109     raeburn   918:         if (document.rolechoice.elements[i] == caller) {
1.108     raeburn   919:             return i;
                    920:         }
                    921:     }
                    922:     return -1;
                    923: }
1.104     raeburn   924: </script>
                    925: END
1.109     raeburn   926:     return $verify_script;
1.104     raeburn   927: }
                    928: 
1.109     raeburn   929: sub processpick {
                    930:     my $process_pick = <<"END";
                    931: <script>
                    932: function process_pick(dom) {
1.138     raeburn   933:     var pickedCourse=opener.document.rolechoice.$env{'form.cnumelement'}.value;
                    934:     var pickedDomain=opener.document.rolechoice.$env{'form.cdomelement'}.value;
                    935:     var okDomain = 0;
                    936: 
                    937:     if (pickedDomain == dom) {
1.109     raeburn   938:         if (pickedCourse != '') {
1.138     raeburn   939:             var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
                    940:             opener.document.title='Role selected. Please stand by.';
                    941:             opener.status='Role selected. Please stand by.';
                    942: 	    opener.document.rolechoice.newrole.value=courseTarget
                    943:             opener.document.rolechoice.submit()
1.109     raeburn   944:         }
1.138     raeburn   945:     } else {
                    946:         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   947:     }
                    948: }
                    949:  
                    950: </script>
                    951: END
                    952:     return $process_pick;
                    953: }
1.108     raeburn   954: 
1.113     raeburn   955: sub display_cc_role {
                    956:     my $rolekey = shift;
                    957:     my $roletext;
1.118     albertel  958:     my $advanced = $env{'user.adv'};
                    959:     my $tryagain = $env{'form.tryagain'};
1.113     raeburn   960:     unless ($rolekey =~/^error\:/) {
                    961:         if ($rolekey =~ m-^user\.role.cc\./(\w+)/(\w+)$-) {
                    962:             my $tcourseid = $1.'_'.$2;
                    963:             my $trolecode = 'cc./'.$1.'/'.$2;
                    964:             my $trole = Apache::lonnet::plaintext('cc');
                    965:             my $twhere;
                    966:             my $tbg='#77FF77';
                    967:             my $tfont='#003300';
                    968:             my %newhash=&Apache::lonnet::coursedescription($tcourseid);
                    969:             if (%newhash) {
                    970:                 $twhere=$newhash{'description'}.
                    971:                         ' <font size="-2">'.
                    972:                         &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$2,$1,$tfont).
                    973:                         '</font>';
                    974:             } else {
                    975:                 $twhere=&mt('Currently not available');
1.118     albertel  976:                 $env{'course.'.$tcourseid.'.description'}=$twhere;
1.110     raeburn   977:             }
1.113     raeburn   978:             $twhere.="<br />".&mt('Domain').":".$1;
1.127     albertel  979:             $roletext = &build_roletext($trolecode,$1,$2,'is',$tryagain,$advanced,'',$tbg,$tfont,$trole,&mt('Course'),$twhere,'','','',1,'');
1.104     raeburn   980:         }
                    981:     }
1.113     raeburn   982:     return $roletext;
1.104     raeburn   983: }
                    984: 
1.108     raeburn   985: sub allcourses_row {
1.138     raeburn   986:     my ($dcdom,$rowtype) = @_;
1.108     raeburn   987:     my $ccrole = Apache::lonnet::plaintext('cc');
1.138     raeburn   988:     my $selectlink = &courselink($dcdom,$rowtype);
1.132     albertel  989:     my $output = '<tr bgcolor="#77FF77">'.
                    990: 	'<td colspan="5">'.
                    991: 	'<font color="#002200">'.$ccrole.'</font>'.
                    992: 	' <b>'.$selectlink.'</b>'.
                    993: 	' from '.&mt('Domain').' '.$dcdom.
                    994: 	'<tr><td colspan="5" height="3"></td></tr>'."\n";
1.108     raeburn   995:     return $output;
                    996: }
                    997: 
1.104     raeburn   998: sub recent_filename {
                    999:     my $area=shift;
                   1000:     return 'nohist_recent_'.&Apache::lonnet::escape($area);
                   1001: }
                   1002: 
1.106     raeburn  1003: sub set_privileges {
                   1004:     my ($dcdom,$pickedcourse) = @_;
                   1005:     my $area = '/'.$dcdom.'/'.$pickedcourse;
                   1006:     my $role = 'cc';
                   1007:     my $spec = $role.'.'.$area;
1.118     albertel 1008:     my $userroles = &Apache::lonnet::set_arearole($role,$area,'','',$dcdom,$env{'user.name'});
1.106     raeburn  1009:     my %ccrole = ();
                   1010:     &Apache::lonnet::standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
1.107     raeburn  1011:     my ($author,$adv)= &Apache::lonnet::set_userprivs(\$userroles,\%ccrole);
                   1012:     my @newprivs = split/\n/,$userroles;
1.106     raeburn  1013:     my %newccroles = ();
                   1014:     foreach (@newprivs) {
                   1015:         my ($key,$val) = split/=/,$_;
                   1016:         $newccroles{$key} = $val;
                   1017:     }
                   1018:     &Apache::lonnet::appenv(%newccroles);
1.118     albertel 1019:     &Apache::lonnet::log($env{'user.domain'},
                   1020:                          $env{'user.name'},
                   1021:                          $env{'user.home'},
1.106     raeburn  1022:                         "Role ".$role);
                   1023:     &Apache::lonnet::appenv(
                   1024:                           'request.role'        => $role,
                   1025:                           'request.role.domain' => $dcdom,
                   1026:                           'request.course.sec'  => '');
                   1027:     my $tadv=0;
                   1028:     if (&Apache::lonnet::allowed('adv') eq 'F') { $tadv=1; }
                   1029:     &Apache::lonnet::appenv('request.role.adv'    => $tadv);
                   1030: }
                   1031: 
1.139     raeburn  1032: sub courseloadpage {
                   1033:     my ($courseid) = @_;
                   1034:     my $startpage;
                   1035:     my %entry_settings =
                   1036:               &Apache::lonnet::dump('nohist_whatsnew',$env{'user.domain'},
                   1037:                                     $env{'user.name'},$courseid.':courseinit');
                   1038:     my ($tmp) = %entry_settings;
                   1039:     unless ($tmp =~ /^Error/) {
                   1040:         $startpage = $entry_settings{$courseid.':courseinit'};
                   1041:     }
                   1042:     if ($startpage eq '') {
                   1043:         if (exists($env{'environment.course_init_display'})) {
                   1044:             $startpage = $env{'environment.course_init_display'};
                   1045:         }
                   1046:     }
                   1047:     return $startpage;
                   1048: }
                   1049: 
1.1       harris41 1050: 1;
                   1051: __END__
1.32      harris41 1052: 
                   1053: =head1 NAME
                   1054: 
                   1055: Apache::lonroles - User Roles Screen
                   1056: 
                   1057: =head1 SYNOPSIS
                   1058: 
                   1059: Invoked by /etc/httpd/conf/srm.conf:
                   1060: 
                   1061:  <Location /adm/roles>
                   1062:  PerlAccessHandler       Apache::lonacc
                   1063:  SetHandler perl-script
                   1064:  PerlHandler Apache::lonroles
                   1065:  ErrorDocument     403 /adm/login
                   1066:  ErrorDocument	  500 /adm/errorhandler
                   1067:  </Location>
1.64      bowersj2 1068: 
                   1069: =head1 OVERVIEW
                   1070: 
                   1071: =head2 Choosing Roles
                   1072: 
                   1073: C<lonroles> is a handler that allows a user to switch roles in
                   1074: mid-session. LON-CAPA attempts to work with "No Role Specified", the
                   1075: default role that a user has before selecting a role, as widely as
                   1076: possible, but certain handlers for example need specification which
                   1077: course they should act on, etc. Both in this scenario, and when the
                   1078: handler determines via C<lonnet>'s C<&allowed> function that a certain
                   1079: action is not allowed, C<lonroles> is used as error handler. This
                   1080: allows the user to select another role which may have permission to do
                   1081: what they were trying to do. C<lonroles> can also be accessed via the
                   1082: B<CRS> button in the Remote Control. 
                   1083: 
                   1084: =begin latex
                   1085: 
                   1086: \begin{figure}
                   1087: \begin{center}
                   1088: \includegraphics[width=0.45\paperwidth,keepaspectratio]{Sample_Roles_Screen}
                   1089:   \caption{\label{Sample_Roles_Screen}Sample Roles Screen} 
                   1090: \end{center}
                   1091: \end{figure}
                   1092: 
                   1093: =end latex
                   1094: 
                   1095: =head2 Role Initialization
                   1096: 
                   1097: 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 1098: 
                   1099: =head1 INTRODUCTION
                   1100: 
                   1101: This module enables a user to select what role he wishes to
                   1102: operate under (instructor, student, teaching assistant, course
                   1103: coordinator, etc).  These roles are pre-established by the actions
                   1104: of upper-level users.
                   1105: 
                   1106: This is part of the LearningOnline Network with CAPA project
                   1107: described at http://www.lon-capa.org.
                   1108: 
                   1109: =head1 HANDLER SUBROUTINE
                   1110: 
                   1111: This routine is called by Apache and mod_perl.
                   1112: 
                   1113: =over 4
                   1114: 
                   1115: =item *
                   1116: 
                   1117: Roles Initialization (yes/no)
                   1118: 
                   1119: =item *
                   1120: 
                   1121: Get Error Message from Environment
                   1122: 
                   1123: =item *
                   1124: 
                   1125: Who is this?
                   1126: 
                   1127: =item *
                   1128: 
                   1129: Generate Page Output
                   1130: 
                   1131: =item *
                   1132: 
                   1133: Choice or no choice
                   1134: 
                   1135: =item *
                   1136: 
                   1137: Table
                   1138: 
                   1139: =item *
                   1140: 
                   1141: Privileges
                   1142: 
                   1143: =back
                   1144: 
                   1145: =cut

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