1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.27 2004/02/13 15:01:29 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: use Apache::lonannounce;
38: use Apache::lonlocal;
39:
40: sub handler {
41: my $r = shift;
42: &Apache::loncommon::content_type($r,'text/html');
43: $r->send_http_header;
44: return OK if $r->header_only;
45:
46: # ------------------------------------------------------------ Print the screen
47: $r->print(<<ENDDOCUMENT);
48: <html>
49: <head>
50: <title>The LearningOnline Network with CAPA</title>
51: ENDDOCUMENT
52: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
53: # Is this even a course?
54: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
55: if ($homeserver eq 'no_host') {
56: $r->print('</head><body>'.&mt('No syllabus available').'</body></html>');
57: return OK;
58: }
59: # --------------------------------------------------------- The syllabus fields
60: my %syllabusfields=&Apache::lonlocal::texthash(
61: 'aaa_instructorinfo' => 'Instructor Information',
62: 'bbb_description' => 'Course Description',
63: 'ccc_prereq' => 'Prerequisites',
64: 'cdc_classhours' => 'Class Hours',
65: 'ddd_officehours' => 'Office Hours',
66: 'eee_helproom' => 'Helproom Hours',
67: 'efe_projectinfo' => 'Project Information',
68: 'fff_examinfo' => 'Exam Information',
69: 'fgf_deadlines' => 'Deadlines',
70: 'ggg_grading' => 'Grading Information',
71: 'hhh_readings' => 'Readings',
72: 'iii_coursepack' => 'Coursepack',
73: 'jjj_weblinks' => 'Web Links',
74: 'kkk_textbook' => 'Textbook',
75: 'lll_includeurl' => 'URLs To Include in Syllabus');
76:
77: # ------------------------------------------------------------ Get query string
78: &Apache::loncommon::get_unprocessed_cgi
79: ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit']);
80: # ----------------------------------------------------- Force menu registration
81: my $addentries='';
82: if ($ENV{'form.register'}) {
83: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
84: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
85: $r->print(&Apache::lonmenu::registerurl(1));
86: }
87: # --------------------------------------------------------------- Force Student
88: my $forcestudent='';
89: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; };
90: my $forceedit='';
91: if ($ENV{'form.forceedit'}) { $forceedit='edit'; }
92:
93: # ------------------------------------- There is such a course, get environment
94: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
95: $r->print('</head>'.&Apache::loncommon::bodytag
96: ("Syllabus",$forcestudent,$addentries,'',$cdom,$ENV{'form.register'}));
97: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'.
98: $Apache::lonnet::domaindescription{$cdom}.'</h3>');
99: # -------------------------------------------------------------- Announcements?
100: $r->print(&Apache::lonannounce::showday(time,2,
101: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum)));
102: # -------------------------------------------------------- Get course personnel
103: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
104: $r->print('<table border="2">');
105: foreach (sort keys %coursepersonnel) {
106: $r->print('<tr><td>'.$_.'</td><td>');
107: foreach (split(/\,/,$coursepersonnel{$_})) {
108: my ($puname,$pudom)=split(/\:/,$_);
109: $r->print(' '.&Apache::loncommon::aboutmewrapper(
110: &Apache::loncommon::plainname($puname,
111: $pudom),$puname,$pudom));
112: }
113: $r->print('</td></tr>');
114: }
115: $r->print('</table>');
116: # ---------------------------------------------------------- Load syllabus info
117: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
118: my $allowed=0;
119: my $privileged=0;
120:
121: # This handler might be called anonymously ...
122: # ----------------------------------------------------- Only if not public call
123: if ($ENV{'user.environment'}) {
124: # does this user have privileges to post, etc?
125: if ($ENV{'request.course.id'}) {
126: $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'});
127: $privileged=$allowed;
128: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
129: $forcestudent='student';
130: }
131: if ($forcestudent) { $allowed=0; }
132: }
133: if ($allowed) {
134: $r->print('<p>'.
135: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>'.&mt('This syllabus can be publicly viewed at')
136: .' <tt>http://'.
137: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'.
138: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
139: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.
140: &mt('Show Public View').'</font></a>'.
141: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
142: '</p>');
143: } elsif ($privileged) {
144: $r->print('<p><a href="'.$r->uri.'?forceedit=1"><font size="+1">'.
145: &mt('Edit').'</font></a>');
146: }
147: if (($allowed) && ($ENV{'form.storesyl'})) {
148: foreach (keys %syllabusfields) {
149: my $field=$ENV{'form.'.$_};
150: $field=~s/\s+$//s;
151: $field=&Apache::lonfeedback::clear_out_html($field,1);
152: $syllabus{$_}=$field;
153: if ($_ eq 'lll_includeurl') { # clean up included URLs
154: my $field='';
155: foreach (split(/\n/,$syllabus{$_})) {
156: my $url=$_;
157: # get rid of leading and trailing spaces
158: $url=~s/^\s+//;
159: $url=~s/\s+$//;
160: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
161: my $remainder=$2;
162: # remove the hostname from internal URLs
163: foreach (keys %Apache::lonnet::hostname) {
164: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
165: $url=$remainder;
166: }
167: }
168: }
169: # norm internal URLs
170: unless ($url=~/^http\:/) {
171: $url=&Apache::lonnet::clutter($url);
172: }
173: # re-assemble field
174: if ($url) {
175: $field.=$url."\n";
176: }
177: }
178: $syllabus{$_}=$field;
179: }
180: }
181: $syllabus{'uploaded.domain'}=$ENV{'user.domain'};
182: $syllabus{'uploaded.name'}=$ENV{'user.name'};
183: $syllabus{'uploaded.lastmodified'}=time;
184: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
185: }
186: }
187: # ---------------------------------------------------------------- Get syllabus
188: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
189: my $lastmod=$syllabus{'uploaded.lastmodified'};
190: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
191: my $who = &Apache::loncommon::aboutmewrapper(
192: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
193: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
194: $syllabus{'uploaded.domain'});
195: $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
196: $lastmod.'</td><td>'.&mt('by').' '.$who.
197: '</td></tr></table><p>');
198: if ($allowed) {
199: $r->print('<form method="post">'.
200: '<input type="hidden" name="forceedit" value="edit" />');
201: }
202: foreach (sort keys %syllabusfields) {
203: if (($syllabus{$_}) || ($allowed)) {
204: my $message=$syllabus{$_};
205: if ($_ eq 'lll_includeurl') { # this is the "included" field
206: my $urls=$message;
207: $message='';
208: foreach my $filelink (split(/\n/,$urls)) {
209: my $output='';
210: # embed style?
211: my ($curfext)=($filelink=~/\.([^\.]+)$/);
212: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
213: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
214: # make ssi call and remove everything but the body contents
215: $output=&Apache::lonnet::ssi_body($filelink);
216: } elsif ($embstyle eq 'img') {
217: # embed as an image
218: $output='<img src="'.$filelink.'" />';
219: }
220: $message.='<p>'.$output.'</p>';
221: }
222: if ($allowed) {
223: $r->print('<h3>'.$syllabusfields{$_}.
224: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
225: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Public View').'</font></a>'.
226: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
227: } else {
228: $r->print($message);
229: }
230: } else {
231: $message=~s/\n/\<br \/\>/g;
232: $message
233: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
234: $message=&Apache::lontexconvert::msgtexconverted($message);
235: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
236: $message.'</blockquote>');
237: }
238: if ($allowed) {
239: $r->print('<br /><textarea cols="80" rows="6" name="'.$_.'">'.
240: $syllabus{$_}.
241: '</textarea><input type="submit" name="storesyl" value="Store" />');
242: }
243: }
244: }
245: if ($allowed) {
246: $r->print('</form>');
247: }
248: $r->print('</p>');
249: } else {
250: $r->print('<p>No syllabus information provided.</p>');
251: }
252: $r->print('</body></html>');
253: return OK;
254: }
255:
256: 1;
257: __END__
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