--- loncom/auth/lonroles.pm	2002/05/13 09:10:15	1.37
+++ loncom/auth/lonroles.pm	2003/06/04 22:13:28	1.59
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # User Roles Screen
 #
-# $Id: lonroles.pm,v 1.37 2002/05/13 09:10:15 albertel Exp $
+# $Id: lonroles.pm,v 1.59 2003/06/04 22:13:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,9 +36,7 @@
 # 12/08,12/28,
 # YEAR=2001
 # 01/15/01 Gerd Kortemeyer
-# 02/27/01 Scott Harrison
 # 03/02,05/03,05/25,05/30,06/01,07/06,08/06 Gerd Kortemeyer
-# 12/21 Scott Harrison
 # 12/29 Gerd Kortemeyer
 #
 ###
@@ -52,6 +50,7 @@ use Apache::Constants qw(:common);
 use Apache::File();
 use Apache::lonmenu;
 use Apache::loncommon;
+use Apache::lonannounce;
 
 sub handler {
 
@@ -69,75 +68,133 @@ sub handler {
 	    my %temp=('logout_'.$ENV{'request.course.id'} => time);
 	    &Apache::lonnet::put('email_status',\%temp);
         }
-       &Apache::lonnet::appenv("request.course.id"  => '',
-                               "request.course.fn"  => '',
-                               "request.course.uri" => '',
-                               "request.course.sec" => '',
-                               "request.role" => 'cm'); 
+	&Apache::lonnet::appenv("request.course.id"   => '',
+				"request.course.fn"   => '',
+				"request.course.uri"  => '',
+				"request.course.sec"  => '',
+				"request.role"        => 'cm',
+                                "request.role.adv"    => $ENV{'user.adv'},
+				"request.role.domain" => $ENV{'user.domain'});
         foreach $envkey (keys %ENV) {
-         if ($envkey=~/^user\.role\./) {
-	    my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
+            next if ($envkey!~/^user\.role\./);
+	    my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
             my $where=join('.',@pwhere);
             my $trolecode=$role.'.'.$where;
             if ($ENV{'form.'.$trolecode}) {
-               my ($tstart,$tend)=split(/\./,$ENV{$envkey});
-               my $tstatus='is';
-               if ($tstart) {
-      		  if ($tstart>$then) { 
-                     $tstatus='future';
-                  }
-               }
-               if ($tend) {
-                  if ($tend<$then) { $tstatus='expired'; }
-                  if ($tend<$now) { $tstatus='will_not'; }
-               }
-               if ($tstatus eq 'is') {
-                   $where=~s/^\///;
-                   my ($cdom,$cnum,$csec)=split(/\//,$where);
-                   &Apache::lonnet::appenv('request.role' => $trolecode,
-                                           'request.course.sec' => $csec);
-                   my $msg='Entering course ...';
-                   if (($cnum) && ($role ne 'ca')) {
-		      my ($furl,$ferr)=
-			  &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
-                      if (($ENV{'form.orgurl'}) && 
-                          ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
-                         $r->internal_redirect($ENV{'form.orgurl'});
-                         return OK;
-		     } else {
-                         unless ($ENV{'request.course.id'}) {
-                             &Apache::lonnet::appenv(
-				 "request.course.id"  => $cdom.'_'.$cnum);
-                             $furl='/adm/notfound.html';
-                             $msg=
+		my ($tstart,$tend)=split(/\./,$ENV{$envkey});
+		my $tstatus='is';
+		if ($tstart) {
+		    if ($tstart>$then) { 
+			$tstatus='future';
+		    }
+		}
+		if ($tend) {
+		    if ($tend<$then) { $tstatus='expired'; }
+		    if ($tend<$now) { $tstatus='will_not'; }
+		}
+		if ($tstatus eq 'is') {
+		    $where=~s/^\///;
+		    my ($cdom,$cnum,$csec)=split(/\//,$where);
+# check for keyed access
+		    if (($role eq 'st') && 
+                       ($ENV{'course.'.$cdom.'_'.$cnum.'.keyaccess'} eq 'yes')) {
+		         unless (&Apache::lonnet::validate_access_key(
+				     $ENV{'environment.key.'.$cdom.'_'.$cnum},
+					     $cdom,$cnum)) {
+# there is no valid key
+			     if ($ENV{'form.newkey'}) {
+# student attempts to register a new key
+			     } else {
+# print form to enter a new key
+				 $r->content_type('text/html');
+				 &Apache::loncommon::no_cache($r);
+				 $r->send_http_header;
+				 my $swinfo=&Apache::lonmenu::rawconfig();
+				 my $bodytag=&Apache::loncommon::bodytag
+				    ('Enter Access Key to Unlock this Course');
+				 $r->print(<<ENDENTERKEY);
+<head><title>Entering Course Access Key</title>
+</head>
+<html>
+$bodytag
+<script>
+$swinfo
+</script>
+<form method="post">
+<input type="hidden" name="selectrole" value="$ENV{'form.selectrole'}" />
+<input type="text" size="20" name="newkey" value="$ENV{'form.newkey'}" />
+<input type="submit" value="Enter key" />
+</form>
+</body></html>
+ENDENTERKEY
+				 return OK;
+			     }
+			 }
+		     }
+                    my $tadv=0;
+                    if (($trolecode!~/^st/) && 
+                        ($trolecode!~/^ta/) && 
+                        ($trolecode!~/^cm/)) { $tadv=1; }
+		    &Apache::lonnet::appenv(
+                                           'request.role'        => $trolecode,
+					   'request.role.adv'    => $tadv,
+					   'request.role.domain' => $cdom,
+					   'request.course.sec'  => $csec);
+		    my $msg='Entering course ...';
+		    if (($cnum) && ($role ne 'ca')) {
+			my ($furl,$ferr)=
+			    &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
+			if (($ENV{'form.orgurl'}) && 
+			    ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
+			    $r->internal_redirect($ENV{'form.orgurl'});
+			    return OK;
+			} else {
+			    unless ($ENV{'request.course.id'}) {
+				&Apache::lonnet::appenv(
+				      "request.course.id"  => $cdom.'_'.$cnum);
+				$furl='/adm/notfound.html';
+				$msg=
 	 '<h1><font color=red>Could not initialize top-level map.</font></h1>';
-                          }
-	                 $r->content_type('text/html');
-                         &Apache::loncommon::no_cache($r);
-                         $r->send_http_header;
-                         my $swinfo=&Apache::lonmenu::rawconfig($r);
-                         print (<<ENDREDIR);
+			    }
+
+			    # Check to see if the user is a CC entering a course 
+			    # for the first time
+			    my (undef, undef, $role, $courseid) = split(/\./, $envkey);
+			    if (substr($courseid, 0, 1) eq '/') {
+				$courseid = substr($courseid, 1);
+			    }
+			    $courseid =~ s/\//_/;
+			    if ($role eq 'cc' && $ENV{'course.' . $courseid . 
+							  '.course.helper.not.run'}) {
+				$furl = "/adm/helper/course.initialization.helper";
+			    }
+
+			    $r->content_type('text/html');
+			    &Apache::loncommon::no_cache($r);
+			    $r->send_http_header;
+			    my $swinfo=&Apache::lonmenu::rawconfig();
+			    my $bodytag=&Apache::loncommon::bodytag('Switching Role');
+			    print (<<ENDREDIR);
 <head><title>Entering Course</title>
 <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
 </head>
 <html>
-<body bgcolor="#FFFFFF">
+$bodytag
 <script>
 $swinfo
 </script>
-$msg
+<h1>$msg</h1>
 </body>
 </html>
 ENDREDIR
                             return OK;
-                     }
-                   }
-               }
-            } 
-	  }
+			}
+		    }
+		}
+            }
         }
-   }
-        
+    }
+
 
 # =============================================================== No Roles Init
 
@@ -146,12 +203,17 @@ ENDREDIR
     $r->send_http_header;
     return OK if $r->header_only;
 
-    my $swinfo=&Apache::lonmenu::rawconfig($r);
+    my $swinfo=&Apache::lonmenu::rawconfig();
+    my $bodytag=&Apache::loncommon::bodytag('User Roles');
+    my $helptag=&Apache::loncommon::help_open_topic
+     ("General_Intro","Click here for help");
     $r->print(<<ENDHEADER);
 <html>
 <head>
 <title>LON-CAPA User Roles</title>
-</head><body bgcolor="#FFFFFF">
+</head>
+$bodytag
+$helptag<br />
 <script>
 $swinfo
 window.focus();
@@ -162,8 +224,8 @@ ENDHEADER
 
     my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
     if ($ENV{'user.error.msg'}) {
-       $r->log_reason(
-     "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
+	$r->log_reason(
+   "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
     }
 
 # ---------------------------------------------------------------- Who is this?
@@ -171,7 +233,7 @@ ENDHEADER
     my $advanced=0;
     foreach $envkey (keys %ENV) {
         if ($envkey=~/^user\.role\./) {
-	    my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
+	    my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
             if ($role ne 'st') { $advanced=1; }
         }
     }
@@ -185,7 +247,6 @@ ENDHEADER
         $r->print("Resource: $fn\n");
         $r->print("Action  : $msg\n</pre><hr>");
     } else {
-        $r->print("<h1>LON-CAPA User Roles</h1>");
         if ($ENV{'user.error.msg'}) {
 	    $r->print(
  '<h3><font color=red>You need to choose another user role or '.
@@ -195,28 +256,27 @@ ENDHEADER
 # -------------------------------------------------------- Choice or no choice?
     if ($nochoose) {
         if ($advanced) {
-	   $r->print("<h2>Assigned User Roles</h2>\n");
+	    $r->print("<h2>Assigned User Roles</h2>\n");
         } else {
-           $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
-           if ($ENV{'request.course.id'}) {
-	       $r->print(' another');
-           } else {
-               $r->print(' a certain');
-           } 
-           $r->print(' course.</body></html>');
-           return OK;
+	    $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
+	    if ($ENV{'request.course.id'}) {
+		$r->print(' another');
+	    } else {
+		$r->print(' a certain');
+	    } 
+	    $r->print(' course.</body></html>');
+	    return OK;
         } 
     } else {
         if ($advanced) {
-           $r->print
-               ("<h2>$ENV{'user.name'}, Please Select a Role</h2>\n");
-           $r->print("Your home server is ".
-                     $Apache::lonnet::hostname{&Apache::lonnet::homeserver
-                     ($ENV{'user.name'},$ENV{'user.domain'})}."<br />\n");
-           $r->print("Author and Co-Author roles may not be available on ".
-                     "servers other than your home server.");
+	    $r->print("Your home server is ".
+		      $Apache::lonnet::hostname{&Apache::lonnet::homeserver
+                      ($ENV{'user.name'},$ENV{'user.domain'})}.
+		      "<br />\n");
+	    $r->print("Author and Co-Author roles may not be available on ".
+		      "servers other than your home server.");
         } else {
-	   $r->print("<h2>Enter a Course</h2>\n");
+	    $r->print("<h2>Select a Course to Enter</h2>\n");
         }
         if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
     	    $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
@@ -231,13 +291,15 @@ ENDHEADER
 # ----------------------------------------------------------------------- Table
     $r->print('<table><tr>');
     unless ($nochoose) { $r->print('<th>&nbsp;</th>'); }
-       $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
-                 '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
+    $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
+	      '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
 
     foreach $envkey (sort keys %ENV) {
         my $button = 1;
+        my $switchserver='';
         if ($envkey=~/^user\.role\./) {
-	    my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
+	    my (undef,undef,$role,@pwhere)=split(/\./,$envkey);
+            next if (!defined($role) || $role eq '');
             my $where=join('.',@pwhere);
             my $trolecode=$role.'.'.$where;
             my ($tstart,$tend)=split(/\./,$ENV{$envkey});
@@ -245,6 +307,7 @@ ENDHEADER
             my $tstatus='is';
             my $tpstart='&nbsp;';
             my $tpend='&nbsp;';
+            my $tfont='#000000';
             if ($tstart) {
 		if ($tstart>$then) { 
                     $tstatus='future';
@@ -268,18 +331,23 @@ ENDHEADER
                 ($ENV{'form.showall'})) {
                 if ($tstatus eq 'is') {
                     $tbg='#77FF77';
+                    $tfont='#003300';
                 } elsif ($tstatus eq 'future') {
                     $tbg='#FFFF77';
+                    $button=0;
                 } elsif ($tstatus eq 'will') {
                     $tbg='#FFAA77';
                     $tremark.='Active at next login. ';
                 } elsif ($tstatus eq 'expired') {
                     $tbg='#FF7777';
+                    $tfont='#330000';
+                    $button=0;
                 } elsif ($tstatus eq 'will_not') {
                     $tbg='#AAFF77';
                     $tremark.='Expired after logout. ';
                 } elsif ($tstatus eq 'selected') {
                     $tbg='#11CC55';
+                    $tfont='#002200';
                     $tremark.='Currently selected. ';
                 }
                 my $trole;
@@ -297,7 +365,14 @@ ENDHEADER
                 # First, Co-Authorship roles
                 if ($role eq 'ca') {
                     my $home = &Apache::lonnet::homeserver($trest,$tdom);
-                    $button = 0 if ($home ne $r->dir_config('lonHostID'));
+                    if ($home ne $r->dir_config('lonHostID')) {
+			$button=0;
+                        $switchserver=&Apache::lonnet::escape('http://'.
+                         $Apache::lonnet::hostname{$home}.
+                         '/adm/login?domain='.$ENV{'user.domain'}.
+			  '&username='.$ENV{'user.name'}.
+                          '&firsturl=/priv/'.$trest);
+                    }
                     #next if ($home eq 'no_host');
                     $home = $Apache::lonnet::hostname{$home};
                     $ttype='Construction Space';
@@ -308,7 +383,14 @@ ENDHEADER
                     # Authors
                     my $home = &Apache::lonnet::homeserver
                         ($ENV{'user.name'},$ENV{'user.domain'});
-                    $button = 0 if ($home ne $r->dir_config('lonHostID'));
+                    if ($home ne $r->dir_config('lonHostID')) {
+			$button=0;
+                        $switchserver=&Apache::lonnet::escape('http://'.
+                         $Apache::lonnet::hostname{$home}.
+                          '/adm/login?domain='.$ENV{'user.domain'}.
+			   '&username='.$ENV{'user.name'}.
+                           '&firsturl=/priv/'.$ENV{'user.name'});
+                    }
                     #next if ($home eq 'no_host');
                     $home = $Apache::lonnet::hostname{$home};
                     $ttype='Construction Space';
@@ -322,11 +404,19 @@ ENDHEADER
                     my $tcourseid=$tdom.'_'.$trest;
                     if ($ENV{'course.'.$tcourseid.'.description'}) {
                         $twhere=$ENV{'course.'.$tcourseid.'.description'};
+                        unless ($twhere eq 'Currently not available') {
+			    $twhere.=' <font size="-2">'.
+        &Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont).
+                                    '</font>';
+			}
                     } else {
                         my %newhash=Apache::lonnet::coursedescription
                             ($tcourseid);
                         if (%newhash) {
-                            $twhere=$newhash{'description'};
+                            $twhere=$newhash{'description'}.
+                              ' <font size="-2">'.
+        &Apache::loncommon::syllabuswrapper('Syllabus',$trest,$tdom,$tfont).
+                              '</font>';
                         } else {
                             $twhere='Currently not available';
                             $ENV{'course.'.$tcourseid.'.description'}=$twhere;
@@ -341,11 +431,15 @@ ENDHEADER
                     $twhere='system wide';
                 }
  
-# ----- do not trust the indention below here -----              
                 $r->print('<tr bgcolor='.$tbg.'>');
                 unless ($nochoose) {
                     if (!$button) {
-                        $r->print('<td>&nbsp;</td>');
+			if ($switchserver) {
+			    $r->print('<td><a href="/adm/logout?handover='.
+                              $switchserver.'">Switch Server</a></td>');
+                        } else {
+                            $r->print('<td>&nbsp;</td>');
+                        }
                     } elsif ($tstatus eq 'is') {
                         $r->print('<td><input type=submit value=Select name="'.
                                   $trolecode.'"></td>');
@@ -357,87 +451,97 @@ ENDHEADER
                         $r->print('<td>&nbsp;</td>');
                     }
                 }
-            $r->print('<td>'.$trole.'</td><td>'.
-		      $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
-                      '</td><td>'.$tpend.
-                      '</td><td>'.$tremark.'&nbsp;</td></tr>'."\n");
-	}
+                $tremark.=&Apache::lonannounce::showday(time,1,
+                         &Apache::lonannounce::readcalendar($tdom.'_'.$trest));
+                
+		$r->print('<td><font color="'.$tfont.'">'.$trole.
+                      '</font></td><td><font color="'.$tfont.'">'.$ttype.
+                      '</font></td><td><font color="'.$tfont.'">'.$twhere.
+                      '</font></td><td><font color="'.$tfont.'">'.$tpstart.
+                      '</font></td><td><font color="'.$tfont.'">'.$tpend.
+                      '</font></td><td><font color="'.$tfont.'">'.$tremark.
+                      '&nbsp;</font></td></tr>'."\n");
+	    }
         }
     }
     my $tremark='';
+    my $tfont='#003300';
     if ($ENV{'request.role'} eq 'cm') {
 	$r->print('<tr bgcolor="#11CC55">');
         $tremark='Currently selected.';
+        $tfont='#002200';
     } else {
         $r->print('<tr bgcolor="#77FF77">');
     }
     unless ($nochoose) {
-       if ($ENV{'request.role'} ne 'cm') {
-          $r->print('<td><input type=submit value=Select name="cm"></td>');
-       } else {
-          $r->print('<td>&nbsp;</td>');
-       }
+	if ($ENV{'request.role'} ne 'cm') {
+	    $r->print('<td><input type=submit value=Select name="cm"></td>');
+	} else {
+	    $r->print('<td>&nbsp;</td>');
+	}
     }
-    $r->print('<td colspan=5>No role specified'.
-                      '</td><td>'.$tremark.'&nbsp;</td></tr>'."\n");
+    $r->print('<td colspan=5><font color="'.$tfont.'">No role specified'.
+      '</font></td><td><font color="'.$tfont.'">'.$tremark.
+      '&nbsp;</font></td></tr>'."\n");
 
     $r->print('</table>');
     unless ($nochoose) {
 	$r->print("</form>\n");
     }
 # ------------------------------------------------------------ Privileges Info
-  if ($advanced) {
-    $r->print('<hr><h2>Current Privileges</h2>');
+    if (($advanced) && (($ENV{'user.error.msg'}) || ($error))) {
+	$r->print('<hr><h2>Current Privileges</h2>');
 
-    foreach $envkey (sort keys %ENV) {
-        if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
-            my $where=$envkey;
-            $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
-            my $ttype;
-            my $twhere;
-            my ($tdom,$trest,$tsec)=
-               split(/\//,Apache::lonnet::declutter($where));
-            if ($trest) {
-	      if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
-	        $ttype='Construction Space';
-                $twhere='User: '.$trest.', Domain: '.$tdom;
-              } else {
-		$ttype='Course';
-                $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
-                if ($tsec) {
-		    $twhere.=' (Section/Group: '.$tsec.')';
-                }
-	      }
-            } elsif ($tdom) {
-                $ttype='Domain';
-                $twhere=$tdom;
-            } else {
-                $ttype='System';
-                $twhere='/';
-            }
-            $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
-            foreach (sort split(/:/,$ENV{$envkey})) {
-              if ($_) {
-		  my ($prv,$restr)=split(/\&/,$_);
-                  my $trestr='';
-                  if ($restr ne 'F') {
-                      my $i;
-                      $trestr.=' (';
-                      for ($i=0;$i<length($restr);$i++) {
-		         $trestr.=
-                           Apache::lonnet::plaintext(substr($restr,$i,1));
-                         if ($i<length($restr)-1) { $trestr.=', '; }
-		      }
-                      $trestr.=')';
-                  }
-                  $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
-                            '</li>');
-	      }
-            }
-            $r->print('</ul>');
-        }
+	foreach $envkey (sort keys %ENV) {
+	    if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
+		my $where=$envkey;
+		$where=~s/^user\.priv\.$ENV{'request.role'}\.//;
+		my $ttype;
+		my $twhere;
+		my ($tdom,$trest,$tsec)=
+		    split(/\//,Apache::lonnet::declutter($where));
+		if ($trest) {
+		    if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
+			$ttype='Construction Space';
+			$twhere='User: '.$trest.', Domain: '.$tdom;
+		    } else {
+			$ttype='Course';
+			$twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
+			if ($tsec) {
+			    $twhere.=' (Section/Group: '.$tsec.')';
+			}
+		    }
+		} elsif ($tdom) {
+		    $ttype='Domain';
+		    $twhere=$tdom;
+		} else {
+		    $ttype='System';
+		    $twhere='/';
+		}
+		$r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
+		foreach (sort split(/:/,$ENV{$envkey})) {
+		    if ($_) {
+			my ($prv,$restr)=split(/\&/,$_);
+			my $trestr='';
+			if ($restr ne 'F') {
+			    my $i;
+			    $trestr.=' (';
+			    for ($i=0;$i<length($restr);$i++) {
+				$trestr.=
+			       Apache::lonnet::plaintext(substr($restr,$i,1));
+				if ($i<length($restr)-1) { $trestr.=', '; }
+			    }
+			    $trestr.=')';
+			}
+			$r->print('<li>'.
+				  Apache::lonnet::plaintext($prv).$trestr.
+				  '</li>');
+		    }
+		}
+		$r->print('</ul>');
+	    }
+	}
     }
-  }
 
     $r->print("</body></html>\n");
     return OK;