1: # The LearningOnline Network
2: # Bulletin Board Handler
3: #
4: # $Id: lonbulletin.pm,v 1.24 2004/05/10 18:44:40 sakharuk 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: my $target=$ENV{'form.grade_target'};
45:
46:
47: # &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
48: # ------------------------------------------------------------ Print the screen
49: if ($target ne 'tex') {
50: $r->print(<<ENDDOCUMENT);
51: <html>
52: <head>
53: <title>The LearningOnline Network with CAPA</title>
54: ENDDOCUMENT
55: } else {
56: $r->print(&Apache::lonprintout::print_latex_header($ENV{'form.latex_type'}));
57: }
58: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
59: # Is this even in a course?
60: unless ($ENV{'request.course.id'}) {
61: $r->print('</head><body>Not in a course</body></html>');
62: return OK;
63: }
64:
65: $marker=~s/\D//g;
66:
67: unless ($marker) {
68: $r->print('<body>Invalid call</body>');
69: return OK;
70: }
71:
72: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
73: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
74:
75: # --------------------------------------------------------- The syllabus fields
76: my %syllabusfields=&Apache::lonlocal::texthash(
77: 'aaa_title' => 'Topic',
78: 'bbb_content' => 'Task',
79: 'ccc_webreferences' => 'Web References');
80:
81: # ------------------------------------------------------------ Get Query String
82: &Apache::loncommon::get_unprocessed_cgi
83: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
84: # ----------------------------------------------------- Force menu registration
85: my $addentries='';
86: if ($ENV{'form.register'}) {
87: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
88: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
89: $r->print(&Apache::lonmenu::registerurl(1));
90: }
91: # --------------------------------------------------------------- Force Student
92: my $forcestudent='';
93: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; }
94:
95: my $forceedit='';
96: if ($ENV{'form.forceedit'}) { $forceedit='edit'; }
97:
98: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
99:
100: # --------------------------------------- There is such a user, get environment
101: if ($target ne 'tex') {
102: $r->print('</head>'.&Apache::loncommon::bodytag
103: ("Bulletin Board/Discussion",$forcestudent,$addentries,'',$dom,
104: $ENV{'form.register'}));
105: }
106: my $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'});
107:
108: my $privileged=$allowed;
109: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
110: $forcestudent='student';
111: }
112:
113: if ($forcestudent or $target eq 'tex') { $allowed=0; }
114:
115: if ($allowed) {
116: $r->print(
117: '<p>'.
118: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'.
119: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
120: } elsif ($privileged and $target ne 'tex') {
121: $r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">'
122: .&mt('Edit').'</font></a>');
123: }
124:
125: if (($ENV{'form.uploaddoc.filename'}) &&
126: ($ENV{'form.storeupl'}) && ($allowed)) {
127: if ($ENV{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
128: if ($syllabus{'uploaded.photourl'}) {
129: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
130: }
131: $syllabus{'uploaded.photourl'}=
132: &Apache::lonnet::userfileupload('uploaddoc',1,'bulletin');
133: }
134: $syllabus{'uploaded.lastmodified'}=time;
135: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
136: }
137: if (($allowed) && ($ENV{'form.storesyl'})) {
138: foreach (keys %syllabusfields) {
139: my $field=$ENV{'form.'.$_};
140: $field=~s/\s+$//s;
141: $field=&Apache::lonfeedback::clear_out_html($field,1);
142: $syllabus{$_}=$field;
143: }
144: $syllabus{'uploaded.lastmodified'}=time;
145: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
146: }
147:
148: # ---------------------------------------------------------------- Get syllabus
149: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
150: if ($syllabus{'uploaded.photourl'}) {
151: &Apache::lonnet::allowuploaded('/adm/syllabus',
152: $syllabus{'uploaded.photourl'});
153: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
154: '" align="right" />');
155: }
156: if ($allowed) {
157: $r->print(
158: '<form method="post" enctype="multipart/form-data">'.
159: '<input type="hidden" name="forceedit" value="edit" />'.
160: '<h3>'.&mt('Upload a Photo').'</h3>'.
161: '<input type="file" name="uploaddoc" size="50">'.
162: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
163: '</form><form method="post">');
164: }
165: foreach (sort keys %syllabusfields) {
166: if (($syllabus{$_}) || ($allowed)) {
167: my $message=$syllabus{$_};
168: $message=~s/\n/\<br \/\>/g;
169: $message
170: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
171: $message=&Apache::lontexconvert::msgtexconverted($message);
172: unless ($_ eq 'aaa_title') {
173: if (($_ ne 'bbb_content') || ($allowed)) {
174: if ($target ne 'tex') {
175: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
176: } else {
177: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\');
178: }
179: }
180: if ($target ne 'tex') {
181: $r->print('<blockquote>'.
182: $message.'</blockquote>');
183: } else {
184: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
185: }
186: if ($allowed) {
187: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
188: $syllabus{$_}.
189: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
190: }
191: } else {
192: if ($target ne 'tex') {
193: $r->print('<h1>'.$message.'</h1>');
194: } else {
195: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
196: }
197: if ($allowed) {
198: $r->print(
199: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
200: $syllabus{$_}.
201: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
202: }
203: }
204: }
205: }
206: if ($allowed) {
207: $r->print('</form>');
208: }
209: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
210: } else {
211: $r->print('<p>'.&mt('No page information provided.').'</p>');
212: }
213: if ($target ne 'tex') {
214: $r->print(&Apache::lonfeedback::list_discussion
215: ('board','OPEN','bulletin___'.$marker.'___'.
216: $r->uri));
217: } else {
218: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
219: ('board','OPEN','bulletin___'.$marker.'___'.
220: $r->uri)));
221: }
222: if ($target ne 'tex') {$r->print('</body></html>');} else {$r->print('\end{document}');}
223: return OK;
224: }
225:
226: 1;
227: __END__
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