loncom/interface/lonsyllabus.pm - view

File: [LON-CAPA] / loncom / interface / lonsyllabus.pm
Revision 1.12: download - view: text, annotated - select for diffs
Mon Feb 10 20:03:13 2003 UTC (21 years, 3 months ago) by www
Branches: MAIN
CVS tags: HEAD

Bug #1019 fixed.
Additional documentation.

1: # The LearningOnline Network 2: # Syllabus 3: # 4: # $Id: lonsyllabus.pm,v 1.12 2003/02/10 20:03:13 www Exp $ 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: # 28: 29: package Apache::lonsyllabus; 30: 31: use strict; 32: use Apache::Constants qw(:common); 33: use Apache::loncommon; 34: use Apache::lonnet; 35: use Apache::lontexconvert; 36: use Apache::lonfeedback; 37: 38: sub handler { 39: my $r = shift; 40: $r->content_type('text/html'); 41: $r->send_http_header; 42: return OK if $r->header_only; 43: 44: # ------------------------------------------------------------ Print the screen 45: $r->print(<<ENDDOCUMENT); 46: <html> 47: <head> 48: <title>The LearningOnline Network with CAPA</title> 49: </head> 50: ENDDOCUMENT 51: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri); 52: # Is this even a course? 53: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom); 54: if ($homeserver eq 'no_host') { 55: $r->print('<body>No syllabus available</body>'); 56: return OK; 57: } 58: # --------------------------------------------------------- The syllabus fields 59: my %syllabusfields=( 60: 'aaa_instructorinfo' => 'Instructor Information', 61: 'bbb_description' => 'Course Description', 62: 'ccc_prereq' => 'Prerequisites', 63: 'cdc_classhours' => 'Class Hours', 64: 'ddd_officehours' => 'Office Hours', 65: 'eee_helproom' => 'Helproom Hours', 66: 'efe_projectinfo' => 'Project Information', 67: 'fff_examinfo' => 'Exam Information', 68: 'fgf_deadlines' => 'Deadlines', 69: 'ggg_grading' => 'Grading Information', 70: 'hhh_readings' => 'Readings', 71: 'iii_coursepack' => 'Coursepack', 72: 'jjj_weblinks' => 'Web Links', 73: 'kkk_textbook' => 'Textbook', 74: 'lll_includeurl' => 'URLs To Include in Syllabus'); 75: 76: # --------------------------------------------------------------- Force Student 77: &Apache::loncommon::get_unprocessed_cgi 78: ($ENV{'QUERY_STRING'},['forcestudent']); 79: my $forcestudent=''; 80: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; }; 81: 82: # ------------------------------------- There is such a course, get environment 83: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum); 84: $r->print(&Apache::loncommon::bodytag 85: ("Syllabus",$forcestudent,'','',$cdom)); 86: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'. 87: $Apache::lonnet::domaindescription{$cdom}.'</h3>'); 88: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum); 89: my $allowed=0; 90: 91: # This handler might be called anonymously ... 92: # ----------------------------------------------------- Only if not public call 93: if ($ENV{'user.environment'}) { 94: # does this user have privileges to post, etc? 95: if ($ENV{'request.course.id'}) { 96: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}); 97: if ($forcestudent) { $allowed=0; } 98: } 99: if ($allowed) { 100: $r->print('<p>'. 101: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>This syllabus can be publically viewed at <tt>http://'. 102: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'. 103: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'. 104: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'. 105: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'). 106: '</p>'); 107: } 108: if (($allowed) && ($ENV{'form.storesyl'})) { 109: foreach (keys %syllabusfields) { 110: my $field=$ENV{'form.'.$_}; 111: $field=~s/\s+$//s; 112: $field=&Apache::lonfeedback::clear_out_html($field,1); 113: $syllabus{$_}=$field; 114: if ($_ eq 'lll_includeurl') { # clean up included URLs 115: my $field=''; 116: foreach (split(/\n/,$syllabus{$_})) { 117: my $url=$_; 118: # get rid of leading and trailing spaces 119: $url=~s/^\s+//; 120: $url=~s/\s+$//; 121: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) { 122: my $remainder=$2; 123: # remove the hostname from internal URLs 124: foreach (keys %Apache::lonnet::hostname) { 125: if ($1=~/$Apache::lonnet::hostname{$_}/i) { 126: $url=$remainder; 127: } 128: } 129: } 130: # norm internal URLs 131: unless ($url=~/^http\:/) { 132: $url=&Apache::lonnet::clutter($url); 133: } 134: # re-assemble field 135: if ($url) { 136: $field.=$url."\n"; 137: } 138: } 139: $syllabus{$_}=$field; 140: } 141: } 142: $syllabus{'uploaded.domain'}=$ENV{'user.domain'}; 143: $syllabus{'uploaded.name'}=$ENV{'user.name'}; 144: $syllabus{'uploaded.lastmodified'}=time; 145: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum); 146: } 147: } 148: # ---------------------------------------------------------------- Get syllabus 149: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) { 150: my $lastmod=$syllabus{'uploaded.lastmodified'}; 151: $lastmod=($lastmod?localtime($lastmod):'never'); 152: 153: $r->print('<table><tr><td>Uploaded:</td><td>'. 154: &Apache::loncommon::aboutmewrapper( 155: &Apache::loncommon::plainname($syllabus{'uploaded.name'}, 156: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'}, 157: $syllabus{'uploaded.domain'}). 158: '</td></tr><tr><td>Last updated:</td><td>'. 159: $lastmod. 160: '</td></tr></table><p>'); 161: if ($allowed) { 162: $r->print('<form method="post">'); 163: } 164: foreach (sort keys %syllabusfields) { 165: if (($syllabus{$_}) || ($allowed)) { 166: my $message=$syllabus{$_}; 167: if ($_ eq 'lll_includeurl') { # this is the "included" field 168: my $urls=$message; 169: $message=''; 170: foreach my $filelink (split(/\n/,$urls)) { 171: my $output=''; 172: # embed style? 173: my ($curfext)=($filelink=~/\.([^\.]+)$/); 174: my $embstyle=&Apache::loncommon::fileembstyle($curfext); 175: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) { 176: # make ssi call and remove everything but the body contents 177: $output= 178: ($filelink=~/^http\:/?&Apache::lonnet::externalssi($filelink): 179: &Apache::lonnet::ssi($filelink)); 180: $output=~s/^.*\<body[^\>]*\>//si; 181: $output=~s/\<\/body\s*\>.*$//si; 182: } elsif ($embstyle eq 'img') { 183: # embed as an image 184: $output='<img src="'.$filelink.'" />'; 185: } 186: $message.='<p>'.$output.'</p>'; 187: } 188: if ($allowed) { 189: $r->print('<h3>'.$syllabusfields{$_}. 190: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'. 191: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'. 192: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>'); 193: } else { 194: $r->print($message); 195: } 196: } else { 197: $message=~s/\n/\<br \/\>/g; 198: $message 199: =~s/(http\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g; 200: $message=&Apache::lontexconvert::msgtexconverted($message); 201: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'. 202: $message.'</blockquote>'); 203: } 204: if ($allowed) { 205: $r->print('<br /><textarea cols="80" rows="6" name="'.$_.'">'. 206: $syllabus{$_}. 207: '</textarea><input type="submit" name="storesyl" value="Store" />'); 208: } 209: } 210: } 211: if ($allowed) { 212: $r->print('</form>'); 213: } 214: $r->print('</p>'); 215: } else { 216: $r->print('<p>No syllabus information provided.</p>'); 217: } 218: $r->print('</body></html>'); 219: return OK; 220: } 221: 222: 1; 223: __END__