1: # The LearningOnline Network
2: # Bulletin Board Handler
3: #
4: # $Id: lonbulletin.pm,v 1.20 2004/04/30 23:13:52 albertel 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::lonbulletin;
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::lonlocal;
38:
39: sub handler {
40: my $r = shift;
41: &Apache::loncommon::content_type($r,'text/html');
42: $r->send_http_header;
43: return OK if $r->header_only;
44:
45: # ------------------------------------------------------------ Print the screen
46: $r->print(<<ENDDOCUMENT);
47: <html>
48: <head>
49: <title>The LearningOnline Network with CAPA</title>
50: ENDDOCUMENT
51: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
52: # Is this even in a course?
53: unless ($ENV{'request.course.id'}) {
54: $r->print('</head><body>Not in a course</body></html>');
55: return OK;
56: }
57:
58: $marker=~s/\D//g;
59:
60: unless ($marker) {
61: $r->print('<body>Invalid call</body>');
62: return OK;
63: }
64:
65: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
66: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
67:
68: # --------------------------------------------------------- The syllabus fields
69: my %syllabusfields=&Apache::lonlocal::texthash(
70: 'aaa_title' => 'Topic',
71: 'bbb_content' => 'Task',
72: 'ccc_webreferences' => 'Web References');
73:
74: # ------------------------------------------------------------ Get Query String
75: &Apache::loncommon::get_unprocessed_cgi
76: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
77: # ----------------------------------------------------- Force menu registration
78: my $addentries='';
79: if ($ENV{'form.register'}) {
80: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
81: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
82: $r->print(&Apache::lonmenu::registerurl(1));
83: }
84: # --------------------------------------------------------------- Force Student
85: my $forcestudent='';
86: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; }
87:
88: my $forceedit='';
89: if ($ENV{'form.forceedit'}) { $forceedit='edit'; }
90:
91: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
92:
93: # --------------------------------------- There is such a user, get environment
94:
95: $r->print('</head>'.&Apache::loncommon::bodytag
96: ("Bulletin Board/Discussion",$forcestudent,$addentries,'',$dom,
97: $ENV{'form.register'}));
98:
99: my $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'});
100:
101: my $privileged=$allowed;
102: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
103: $forcestudent='student';
104: }
105:
106: if ($forcestudent) { $allowed=0; }
107:
108: if ($allowed) {
109: $r->print(
110: '<p>'.
111: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'.
112: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
113: } elsif ($privileged) {
114: $r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">'
115: .&mt('Edit').'</font></a>');
116: }
117:
118: if (($ENV{'form.uploaddoc.filename'}) &&
119: ($ENV{'form.storeupl'}) && ($allowed)) {
120: if ($ENV{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
121: if ($syllabus{'uploaded.photourl'}) {
122: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
123: }
124: $syllabus{'uploaded.photourl'}=
125: &Apache::lonnet::userfileupload('uploaddoc',1,'bulletin');
126: }
127: $syllabus{'uploaded.lastmodified'}=time;
128: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
129: }
130: if (($allowed) && ($ENV{'form.storesyl'})) {
131: foreach (keys %syllabusfields) {
132: my $field=$ENV{'form.'.$_};
133: $field=~s/\s+$//s;
134: $field=&Apache::lonfeedback::clear_out_html($field,1);
135: $syllabus{$_}=$field;
136: }
137: $syllabus{'uploaded.lastmodified'}=time;
138: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
139: }
140:
141: # ---------------------------------------------------------------- Get syllabus
142: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
143: if ($syllabus{'uploaded.photourl'}) {
144: &Apache::lonnet::allowuploaded('/adm/syllabus',
145: $syllabus{'uploaded.photourl'});
146: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
147: '" align="right" />');
148: }
149: if ($allowed) {
150: $r->print(
151: '<form method="post" enctype="multipart/form-data">'.
152: '<input type="hidden" name="forceedit" value="edit" />'.
153: '<h3>'.&mt('Upload a Photo').'</h3>'.
154: '<input type="file" name="uploaddoc" size="50">'.
155: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
156: '</form><form method="post">');
157: }
158: foreach (sort keys %syllabusfields) {
159: if (($syllabus{$_}) || ($allowed)) {
160: my $message=$syllabus{$_};
161: $message=~s/\n/\<br \/\>/g;
162: $message
163: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
164: $message=&Apache::lontexconvert::msgtexconverted($message);
165: unless ($_ eq 'aaa_title') {
166: if (($_ ne 'bbb_content') || ($allowed)) {
167: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
168: }
169: $r->print('<blockquote>'.
170: $message.'</blockquote>');
171: if ($allowed) {
172: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
173: $syllabus{$_}.
174: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
175: }
176: } else {
177: $r->print('<h1>'.$message.'</h1>');
178: if ($allowed) {
179: $r->print(
180: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
181: $syllabus{$_}.
182: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
183: }
184: }
185: }
186: }
187: if ($allowed) {
188: $r->print('</form>');
189: }
190: $r->print('</p>');
191: } else {
192: $r->print('<p>'.&mt('No page information provided.').'</p>');
193: }
194: $r->print(&Apache::lonfeedback::list_discussion
195: ('board','OPEN','bulletin___'.$marker.'___'.
196: $r->uri).'</body></html>');
197: return OK;
198: }
199:
200: 1;
201: __END__
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