1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.17 2003/03/25 19:18:40 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:
96: # -------------------------------------------------------- Get course personnel
97: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
98: $r->print('<table border="2">');
99: foreach (keys %coursepersonnel) {
100: $r->print('<tr><td>'.$_.'</td><td>');
101: foreach (split(/\,/,$coursepersonnel{$_})) {
102: my ($puname,$pudom)=split(/\:/,$_);
103: $r->print(' '.&Apache::loncommon::aboutmewrapper(
104: &Apache::loncommon::plainname($puname,
105: $pudom),$puname,$pudom));
106: }
107: $r->print('</td></tr>');
108: }
109: $r->print('</table>');
110: # ---------------------------------------------------------- Load syllabus info
111: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
112: my $allowed=0;
113:
114: # This handler might be called anonymously ...
115: # ----------------------------------------------------- Only if not public call
116: if ($ENV{'user.environment'}) {
117: # does this user have privileges to post, etc?
118: if ($ENV{'request.course.id'}) {
119: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
120: if ($forcestudent) { $allowed=0; }
121: }
122: if ($allowed) {
123: $r->print('<p>'.
124: &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://'.
125: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'.
126: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
127: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'.
128: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
129: '</p>');
130: }
131: if (($allowed) && ($ENV{'form.storesyl'})) {
132: foreach (keys %syllabusfields) {
133: my $field=$ENV{'form.'.$_};
134: $field=~s/\s+$//s;
135: $field=&Apache::lonfeedback::clear_out_html($field,1);
136: $syllabus{$_}=$field;
137: if ($_ eq 'lll_includeurl') { # clean up included URLs
138: my $field='';
139: foreach (split(/\n/,$syllabus{$_})) {
140: my $url=$_;
141: # get rid of leading and trailing spaces
142: $url=~s/^\s+//;
143: $url=~s/\s+$//;
144: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
145: my $remainder=$2;
146: # remove the hostname from internal URLs
147: foreach (keys %Apache::lonnet::hostname) {
148: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
149: $url=$remainder;
150: }
151: }
152: }
153: # norm internal URLs
154: unless ($url=~/^http\:/) {
155: $url=&Apache::lonnet::clutter($url);
156: }
157: # re-assemble field
158: if ($url) {
159: $field.=$url."\n";
160: }
161: }
162: $syllabus{$_}=$field;
163: }
164: }
165: $syllabus{'uploaded.domain'}=$ENV{'user.domain'};
166: $syllabus{'uploaded.name'}=$ENV{'user.name'};
167: $syllabus{'uploaded.lastmodified'}=time;
168: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
169: }
170: }
171: # ---------------------------------------------------------------- Get syllabus
172: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
173: my $lastmod=$syllabus{'uploaded.lastmodified'};
174: $lastmod=($lastmod?localtime($lastmod):'never');
175:
176: $r->print('<table><tr><td>Uploaded:</td><td>'.
177: &Apache::loncommon::aboutmewrapper(
178: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
179: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
180: $syllabus{'uploaded.domain'}).
181: '</td></tr><tr><td>Last updated:</td><td>'.
182: $lastmod.
183: '</td></tr></table><p>');
184: if ($allowed) {
185: $r->print('<form method="post">');
186: }
187: foreach (sort keys %syllabusfields) {
188: if (($syllabus{$_}) || ($allowed)) {
189: my $message=$syllabus{$_};
190: if ($_ eq 'lll_includeurl') { # this is the "included" field
191: my $urls=$message;
192: $message='';
193: foreach my $filelink (split(/\n/,$urls)) {
194: my $output='';
195: # embed style?
196: my ($curfext)=($filelink=~/\.([^\.]+)$/);
197: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
198: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
199: # make ssi call and remove everything but the body contents
200: $output=&Apache::lonnet::ssi_body($filelink);
201: } elsif ($embstyle eq 'img') {
202: # embed as an image
203: $output='<img src="'.$filelink.'" />';
204: }
205: $message.='<p>'.$output.'</p>';
206: }
207: if ($allowed) {
208: $r->print('<h3>'.$syllabusfields{$_}.
209: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
210: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a>'.
211: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
212: } else {
213: $r->print($message);
214: }
215: } else {
216: $message=~s/\n/\<br \/\>/g;
217: $message
218: =~s/(http\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
219: $message=&Apache::lontexconvert::msgtexconverted($message);
220: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
221: $message.'</blockquote>');
222: }
223: if ($allowed) {
224: $r->print('<br /><textarea cols="80" rows="6" name="'.$_.'">'.
225: $syllabus{$_}.
226: '</textarea><input type="submit" name="storesyl" value="Store" />');
227: }
228: }
229: }
230: if ($allowed) {
231: $r->print('</form>');
232: }
233: $r->print('</p>');
234: } else {
235: $r->print('<p>No syllabus information provided.</p>');
236: }
237: $r->print('</body></html>');
238: return OK;
239: }
240:
241: 1;
242: __END__
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