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    1 ################################################################################
    2 # WeBWorK Online Homework Delivery System
    3 # Copyright © 2000-2006 The WeBWorK Project, http://openwebwork.sf.net/
    4 # $CVSHeader: webwork-modperl/lib/WeBWorK/ContentGenerator/Home.pm,v 1.18 2006/07/08 14:07:34 gage Exp $
    5 #
    6 # This program is free software; you can redistribute it and/or modify it under
    7 # the terms of either: (a) the GNU General Public License as published by the
    8 # Free Software Foundation; either version 2, or (at your option) any later
    9 # version, or (b) the "Artistic License" which comes with this package.
   10 #
   11 # This program is distributed in the hope that it will be useful, but WITHOUT
   12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   13 # FOR A PARTICULAR PURPOSE.  See either the GNU General Public License or the
   14 # Artistic License for more details.
   15 ################################################################################
   16 
   17 package WeBWorK::ContentGenerator::Home;
   18 use base qw(WeBWorK::ContentGenerator);
   19 
   20 =head1 NAME
   21 
   22 WeBWorK::ContentGenerator::Home - display a list of courses.
   23 
   24 =cut
   25 
   26 use strict;
   27 use warnings;
   28 #use CGI qw(-nosticky );
   29 use WeBWorK::CGI;
   30 use WeBWorK::Utils qw(readFile readDirectory);
   31 use WeBWorK::Utils::CourseManagement qw/listCourses/;
   32 
   33 sub info {
   34   my ($self) = @_;
   35   my $r = $self->r;
   36   my $ce = $r->ce;
   37 
   38   my $result;
   39 
   40   # This section should be kept in sync with the Login.pm version
   41   my $site_info = $ce->{webworkFiles}->{site_info};
   42   if (defined $site_info and $site_info) {
   43     # deal with previewing a temporary file
   44     # FIXME: DANGER: this code allows viewing of any file
   45     # FIXME: this code is disabled because PGProblemEditor no longer uses editFileSuffix
   46     #if (defined $r->param("editMode") and $r->param("editMode") eq "temporaryFile"
   47     #   and defined $r->param("editFileSuffix")) {
   48     # $site_info .= $r->param("editFileSuffix");
   49     #}
   50 
   51     if (-f $site_info) {
   52       my $text = eval { readFile($site_info) };
   53       if ($@) {
   54         $result = CGI::div({class=>"ResultsWithError"}, $@);
   55       } elsif ($text =~ /\S/) {
   56         $result = $text;
   57       }
   58     }
   59   }
   60 
   61   if (defined $result and $result ne "") {
   62     return CGI::div({class=>"info-box", id=>"InfoPanel"},
   63       CGI::h2("Site Information"), $result);
   64   } else {
   65     return "";
   66   }
   67 }
   68 
   69 sub body {
   70   my ($self) = @_;
   71   my $r = $self->r;
   72 
   73   my $coursesDir = $r->ce->{webworkDirs}->{courses};
   74   my $coursesURL = $r->ce->{webworkURLs}->{root};
   75 
   76   my @courseIDs = listCourses($r->ce);
   77 
   78   my $haveAdminCourse = 0;
   79   foreach my $courseID (@courseIDs) {
   80     if ($courseID eq "admin") {
   81       $haveAdminCourse = 1;
   82       last;
   83     }
   84   }
   85 
   86   print CGI::p("Welcome to WeBWorK!");
   87 
   88   if ($haveAdminCourse and !(-f "$coursesDir/admin/hide_directory")) {
   89     my $urlpath = $r->urlpath->newFromModule("WeBWorK::ContentGenerator::ProblemSets", courseID => "admin");
   90     print CGI::p(CGI::a({href=>$self->systemLink($urlpath, authen => 0)}, "Course Administration"));
   91   }
   92 
   93   print CGI::h2("Courses");
   94 
   95   print CGI::start_ul();
   96 
   97   foreach my $courseID (sort {lc($a) cmp lc($b) } @courseIDs) {
   98     next if $courseID eq "admin"; # done already above
   99     next if -f "$coursesDir/$courseID/hide_directory";
  100     my $urlpath = $r->urlpath->newFromModule("WeBWorK::ContentGenerator::ProblemSets", courseID => $courseID);
  101     print CGI::li(CGI::a({href=>$self->systemLink($urlpath, authen => 0)}, $courseID));
  102   }
  103 
  104   print CGI::end_ul();
  105 
  106   return "";
  107 }
  108 
  109 1;