1: # The LearningOnline Network
2: # Bulletin Board Handler
3: #
4: # $Id: lonbulletin.pm,v 1.23 2004/05/10 14:10:03 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: &Apache::lonnet::logthis("MY TARGET IS DEFINED AS $target");
46:
47:
48: # &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
49: # ------------------------------------------------------------ Print the screen
50: if ($target ne 'tex') {
51: $r->print(<<ENDDOCUMENT);
52: <html>
53: <head>
54: <title>The LearningOnline Network with CAPA</title>
55: ENDDOCUMENT
56: } else {
57: $r->print(&Apache::lonprintout::print_latex_header($ENV{'form.latex_type'}));
58: }
59: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
60: # Is this even in a course?
61: unless ($ENV{'request.course.id'}) {
62: $r->print('</head><body>Not in a course</body></html>');
63: return OK;
64: }
65:
66: $marker=~s/\D//g;
67:
68: unless ($marker) {
69: $r->print('<body>Invalid call</body>');
70: return OK;
71: }
72:
73: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
74: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
75:
76: # --------------------------------------------------------- The syllabus fields
77: my %syllabusfields=&Apache::lonlocal::texthash(
78: 'aaa_title' => 'Topic',
79: 'bbb_content' => 'Task',
80: 'ccc_webreferences' => 'Web References');
81:
82: # ------------------------------------------------------------ Get Query String
83: &Apache::loncommon::get_unprocessed_cgi
84: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
85: # ----------------------------------------------------- Force menu registration
86: my $addentries='';
87: if ($ENV{'form.register'}) {
88: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
89: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
90: $r->print(&Apache::lonmenu::registerurl(1));
91: }
92: # --------------------------------------------------------------- Force Student
93: my $forcestudent='';
94: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; }
95:
96: my $forceedit='';
97: if ($ENV{'form.forceedit'}) { $forceedit='edit'; }
98:
99: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
100:
101: # --------------------------------------- There is such a user, get environment
102: if ($target ne 'tex') {
103: $r->print('</head>'.&Apache::loncommon::bodytag
104: ("Bulletin Board/Discussion",$forcestudent,$addentries,'',$dom,
105: $ENV{'form.register'}));
106: }
107: my $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'});
108:
109: my $privileged=$allowed;
110: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
111: $forcestudent='student';
112: }
113:
114: if ($forcestudent or $target eq 'tex') { $allowed=0; }
115:
116: if ($allowed) {
117: $r->print(
118: '<p>'.
119: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'.
120: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
121: } elsif ($privileged and $target ne 'tex') {
122: $r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">'
123: .&mt('Edit').'</font></a>');
124: }
125:
126: if (($ENV{'form.uploaddoc.filename'}) &&
127: ($ENV{'form.storeupl'}) && ($allowed)) {
128: if ($ENV{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
129: if ($syllabus{'uploaded.photourl'}) {
130: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
131: }
132: $syllabus{'uploaded.photourl'}=
133: &Apache::lonnet::userfileupload('uploaddoc',1,'bulletin');
134: }
135: $syllabus{'uploaded.lastmodified'}=time;
136: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
137: }
138: if (($allowed) && ($ENV{'form.storesyl'})) {
139: foreach (keys %syllabusfields) {
140: my $field=$ENV{'form.'.$_};
141: $field=~s/\s+$//s;
142: $field=&Apache::lonfeedback::clear_out_html($field,1);
143: $syllabus{$_}=$field;
144: }
145: $syllabus{'uploaded.lastmodified'}=time;
146: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
147: }
148:
149: # ---------------------------------------------------------------- Get syllabus
150: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
151: if ($syllabus{'uploaded.photourl'}) {
152: &Apache::lonnet::allowuploaded('/adm/syllabus',
153: $syllabus{'uploaded.photourl'});
154: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
155: '" align="right" />');
156: }
157: if ($allowed) {
158: $r->print(
159: '<form method="post" enctype="multipart/form-data">'.
160: '<input type="hidden" name="forceedit" value="edit" />'.
161: '<h3>'.&mt('Upload a Photo').'</h3>'.
162: '<input type="file" name="uploaddoc" size="50">'.
163: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
164: '</form><form method="post">');
165: }
166: foreach (sort keys %syllabusfields) {
167: if (($syllabus{$_}) || ($allowed)) {
168: my $message=$syllabus{$_};
169: $message=~s/\n/\<br \/\>/g;
170: $message
171: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
172: $message=&Apache::lontexconvert::msgtexconverted($message);
173: unless ($_ eq 'aaa_title') {
174: if (($_ ne 'bbb_content') || ($allowed)) {
175: if ($target ne 'tex') {
176: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
177: } else {
178: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\');
179: }
180: }
181: if ($target ne 'tex') {
182: $r->print('<blockquote>'.
183: $message.'</blockquote>');
184: } else {
185: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
186: }
187: if ($allowed) {
188: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
189: $syllabus{$_}.
190: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
191: }
192: } else {
193: if ($target ne 'tex') {
194: $r->print('<h1>'.$message.'</h1>');
195: } else {
196: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
197: }
198: if ($allowed) {
199: $r->print(
200: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
201: $syllabus{$_}.
202: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
203: }
204: }
205: }
206: }
207: if ($allowed) {
208: $r->print('</form>');
209: }
210: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
211: } else {
212: $r->print('<p>'.&mt('No page information provided.').'</p>');
213: }
214: if ($target ne 'tex') {
215: $r->print(&Apache::lonfeedback::list_discussion
216: ('board','OPEN','bulletin___'.$marker.'___'.
217: $r->uri));
218: } else {
219: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
220: ('board','OPEN','bulletin___'.$marker.'___'.
221: $r->uri)));
222: }
223: if ($target ne 'tex') {$r->print('</body></html>');} else {$r->print('\end{document}');}
224: return OK;
225: }
226:
227: 1;
228: __END__
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