1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.16 2003/03/10 14:20:07 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: $r->print(<<ENDDOCUMENT);
46: <html>
47: <head>
48: <title>The LearningOnline Network with CAPA</title>
49: ENDDOCUMENT
50: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
51: # Is this even a course?
52: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
53: if ($homeserver eq 'no_host') {
54: $r->print('</head><body>No syllabus available</body></html>');
55: return OK;
56: }
57: # --------------------------------------------------------- The syllabus fields
58: my %syllabusfields=(
59: 'aaa_instructorinfo' => 'Instructor Information',
60: 'bbb_description' => 'Course Description',
61: 'ccc_prereq' => 'Prerequisites',
62: 'cdc_classhours' => 'Class Hours',
63: 'ddd_officehours' => 'Office Hours',
64: 'eee_helproom' => 'Helproom Hours',
65: 'efe_projectinfo' => 'Project Information',
66: 'fff_examinfo' => 'Exam Information',
67: 'fgf_deadlines' => 'Deadlines',
68: 'ggg_grading' => 'Grading Information',
69: 'hhh_readings' => 'Readings',
70: 'iii_coursepack' => 'Coursepack',
71: 'jjj_weblinks' => 'Web Links',
72: 'kkk_textbook' => 'Textbook',
73: 'lll_includeurl' => 'URLs To Include in Syllabus');
74:
75: # ------------------------------------------------------------ Get query string
76: &Apache::loncommon::get_unprocessed_cgi
77: ($ENV{'QUERY_STRING'},['forcestudent','register']);
78: # ----------------------------------------------------- Force menu registration
79: my $addentries='';
80: if ($ENV{'form.register'}) {
81: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
82: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
83: $r->print(&Apache::lonmenu::registerurl(1));
84: }
85: # --------------------------------------------------------------- Force Student
86: my $forcestudent='';
87: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; };
88:
89: # ------------------------------------- There is such a course, get environment
90: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
91: $r->print('</head>'.&Apache::loncommon::bodytag
92: ("Syllabus",$forcestudent,$addentries,'',$cdom,$ENV{'form.register'}));
93: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'.
94: $Apache::lonnet::domaindescription{$cdom}.'</h3>');
95: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
96: my $allowed=0;
97:
98: # This handler might be called anonymously ...
99: # ----------------------------------------------------- Only if not public call
100: if ($ENV{'user.environment'}) {
101: # does this user have privileges to post, etc?
102: if ($ENV{'request.course.id'}) {
103: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
104: if ($forcestudent) { $allowed=0; }
105: }
106: if ($allowed) {
107: $r->print('<p>'.
108: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>This syllabus can be publicly viewed at <tt>http://'.
109: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'.
110: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
111: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'.
112: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
113: '</p>');
114: }
115: if (($allowed) && ($ENV{'form.storesyl'})) {
116: foreach (keys %syllabusfields) {
117: my $field=$ENV{'form.'.$_};
118: $field=~s/\s+$//s;
119: $field=&Apache::lonfeedback::clear_out_html($field,1);
120: $syllabus{$_}=$field;
121: if ($_ eq 'lll_includeurl') { # clean up included URLs
122: my $field='';
123: foreach (split(/\n/,$syllabus{$_})) {
124: my $url=$_;
125: # get rid of leading and trailing spaces
126: $url=~s/^\s+//;
127: $url=~s/\s+$//;
128: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
129: my $remainder=$2;
130: # remove the hostname from internal URLs
131: foreach (keys %Apache::lonnet::hostname) {
132: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
133: $url=$remainder;
134: }
135: }
136: }
137: # norm internal URLs
138: unless ($url=~/^http\:/) {
139: $url=&Apache::lonnet::clutter($url);
140: }
141: # re-assemble field
142: if ($url) {
143: $field.=$url."\n";
144: }
145: }
146: $syllabus{$_}=$field;
147: }
148: }
149: $syllabus{'uploaded.domain'}=$ENV{'user.domain'};
150: $syllabus{'uploaded.name'}=$ENV{'user.name'};
151: $syllabus{'uploaded.lastmodified'}=time;
152: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
153: }
154: }
155: # ---------------------------------------------------------------- Get syllabus
156: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
157: my $lastmod=$syllabus{'uploaded.lastmodified'};
158: $lastmod=($lastmod?localtime($lastmod):'never');
159:
160: $r->print('<table><tr><td>Uploaded:</td><td>'.
161: &Apache::loncommon::aboutmewrapper(
162: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
163: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
164: $syllabus{'uploaded.domain'}).
165: '</td></tr><tr><td>Last updated:</td><td>'.
166: $lastmod.
167: '</td></tr></table><p>');
168: if ($allowed) {
169: $r->print('<form method="post">');
170: }
171: foreach (sort keys %syllabusfields) {
172: if (($syllabus{$_}) || ($allowed)) {
173: my $message=$syllabus{$_};
174: if ($_ eq 'lll_includeurl') { # this is the "included" field
175: my $urls=$message;
176: $message='';
177: foreach my $filelink (split(/\n/,$urls)) {
178: my $output='';
179: # embed style?
180: my ($curfext)=($filelink=~/\.([^\.]+)$/);
181: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
182: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
183: # make ssi call and remove everything but the body contents
184: $output=&Apache::lonnet::ssi_body($filelink);
185: } elsif ($embstyle eq 'img') {
186: # embed as an image
187: $output='<img src="'.$filelink.'" />';
188: }
189: $message.='<p>'.$output.'</p>';
190: }
191: if ($allowed) {
192: $r->print('<h3>'.$syllabusfields{$_}.
193: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
194: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'.
195: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
196: } else {
197: $r->print($message);
198: }
199: } else {
200: $message=~s/\n/\<br \/\>/g;
201: $message
202: =~s/(http\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
203: $message=&Apache::lontexconvert::msgtexconverted($message);
204: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
205: $message.'</blockquote>');
206: }
207: if ($allowed) {
208: $r->print('<br /><textarea cols="80" rows="6" name="'.$_.'">'.
209: $syllabus{$_}.
210: '</textarea><input type="submit" name="storesyl" value="Store" />');
211: }
212: }
213: }
214: if ($allowed) {
215: $r->print('</form>');
216: }
217: $r->print('</p>');
218: } else {
219: $r->print('<p>No syllabus information provided.</p>');
220: }
221: $r->print('</body></html>');
222: return OK;
223: }
224:
225: 1;
226: __END__
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