1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.9 2003/02/10 14:44:36 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:
37: sub handler {
38: my $r = shift;
39: $r->content_type('text/html');
40: $r->send_http_header;
41: return OK if $r->header_only;
42:
43: # ------------------------------------------------------------ Print the screen
44: $r->print(<<ENDDOCUMENT);
45: <html>
46: <head>
47: <title>The LearningOnline Network with CAPA</title>
48: </head>
49: ENDDOCUMENT
50: my (undef,undef,$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: $r->print('<body>No syllabus available</body>');
55: return OK;
56: }
57: # --------------------------------------------------------- The syllabus fields
58: my %syllabusfields=(
59: 'aaa_instructorinfo' => 'Instructor Information',
60: 'bbb_description' => 'Course Description',
61: 'ccc_prereq' => 'Prerequisites',
62: 'cdc_classhours' => 'Class Hours',
63: 'ddd_officehours' => 'Office Hours',
64: 'eee_helproom' => 'Helproom Hours',
65: 'efe_projectinfo' => 'Project Information',
66: 'fff_examinfo' => 'Exam Information',
67: 'fgf_deadlines' => 'Deadlines',
68: 'ggg_grading' => 'Grading Information',
69: 'hhh_readings' => 'Readings',
70: 'iii_coursepack' => 'Coursepack',
71: 'jjj_weblinks' => 'Web Links',
72: 'kkk_textbook' => 'Textbook',
73: 'lll_includeurl' => 'URLs To Include in Syllabus');
74:
75: # --------------------------------------------------------------- Force Student
76: &Apache::loncommon::get_unprocessed_cgi
77: ($ENV{'QUERY_STRING'},['forcestudent']);
78: my $forcestudent='';
79: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; };
80:
81: # ------------------------------------- There is such a course, get environment
82: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
83: $r->print(&Apache::loncommon::bodytag
84: ("Syllabus",$forcestudent,'','',$cdom));
85: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'.
86: $Apache::lonnet::domaindescription{$cdom}.'</h3>');
87: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
88: my $allowed=0;
89:
90: # This handler might be called anonymously ...
91: # ----------------------------------------------------- Only if not public call
92: if ($ENV{'user.environment'}) {
93: # does this user have privileges to post, etc?
94: if ($ENV{'request.course.id'}) {
95: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
96: if ($forcestudent) { $allowed=0; }
97: }
98: if ($allowed) {
99: $r->print('<p>This syllabus can be publically viewed at <tt>http://'.
100: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt></p>'.
101: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a></p>');
102: }
103: if (($allowed) && ($ENV{'form.storesyl'})) {
104: foreach (keys %syllabusfields) {
105: my $field=$ENV{'form.'.$_};
106: $field=~s/\s+$//s;
107: $field=~s/\</\<\;/g;
108: $field=~s/\>/\>\;/g;
109: $syllabus{$_}=$field;
110: if ($_ eq 'lll_includeurl') { # clean up included URLs
111: my $field='';
112: foreach (split(/\n/,$syllabus{$_})) {
113: my $url=$_;
114: # get rid of leading and trailing spaces
115: $url=~s/^\s+//;
116: $url=~s/\s+$//;
117: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
118: my $remainder=$2;
119: # remove the hostname from internal URLs
120: foreach (keys %Apache::lonnet::hostname) {
121: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
122: $url=$remainder;
123: }
124: }
125: }
126: # norm internal URLs
127: unless ($url=~/^http\:/) {
128: $url=&Apache::lonnet::clutter($url);
129: }
130: # re-assemble field
131: if ($url) {
132: $field.=$url."\n";
133: }
134: }
135: $syllabus{$_}=$field;
136: }
137: }
138: $syllabus{'uploaded.domain'}=$ENV{'user.domain'};
139: $syllabus{'uploaded.name'}=$ENV{'user.name'};
140: $syllabus{'uploaded.lastmodified'}=time;
141: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
142: }
143: }
144: # ---------------------------------------------------------------- Get syllabus
145: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
146: my $lastmod=$syllabus{'uploaded.lastmodified'};
147: $lastmod=($lastmod?localtime($lastmod):'never');
148:
149: $r->print('<table><tr><td>Uploaded:</td><td>'.
150: &Apache::loncommon::aboutmewrapper(
151: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
152: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
153: $syllabus{'uploaded.domain'}).
154: '</td></tr><tr><td>Last updated:</td><td>'.
155: $lastmod.
156: '</td></tr></table><p>');
157: if ($allowed) {
158: $r->print('<form method="post">');
159: }
160: foreach (sort keys %syllabusfields) {
161: if (($syllabus{$_}) || ($allowed)) {
162: my $message=$syllabus{$_};
163: if ($_ eq 'lll_includeurl') { # this is the "included" field
164: my $urls=$message;
165: $message='';
166: foreach my $filelink (split(/\n/,$urls)) {
167: my $output='';
168: # embed style?
169: my ($curfext)=($filelink=~/\.([^\.]+)$/);
170: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
171: if ($embstyle eq 'ssi') {
172: # make ssi call and remove everything but the body contents
173: $output=&Apache::lonnet::ssi($filelink);
174: $output=~s/^.*\<body[^\>]*\>//si;
175: $output=~s/\<\/body\s*\>.*$//si;
176: } elsif ($embstyle eq 'img') {
177: # embed as an image
178: $output='<img src="'.$filelink.'" />';
179: }
180: $message.='<p>'.$output.'</p>';
181: }
182: if ($allowed) {
183: $r->print('<h3>'.$syllabusfields{$_}.
184: '</h3>URLs provided will be included into the page output.'.
185: '<br />Format:<br /><pre>'.
186: "http://www.foo.org/foo.html\n/res/foo/author/foo.html\n</pre>".
187: '<p><a href="'.$r->uri.'?forcestudent=1">Show Student View</a></p>');
188: } else {
189: $r->print($message);
190: }
191: } else {
192: $message=~s/\n/\<br \/\>/g;
193: $message
194: =~s/(http\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
195: $message=&Apache::lontexconvert::msgtexconverted($message);
196: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
197: $message.'</blockquote>');
198: }
199: if ($allowed) {
200: $r->print('<br /><textarea cols="80" rows="6" name="'.$_.'">'.
201: $syllabus{$_}.
202: '</textarea><input type="submit" name="storesyl" value="Store" />');
203: }
204: }
205: }
206: if ($allowed) {
207: $r->print('</form>');
208: }
209: $r->print('</p>');
210: } else {
211: $r->print('<p>No syllabus information provided.</p>');
212: }
213: $r->print('</body></html>');
214: return OK;
215: }
216:
217: 1;
218: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonsyllabus.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface