Annotation of loncom/interface/lonbulletin.pm, revision 1.38
1.1 www 1: # The LearningOnline Network
1.5 www 2: # Bulletin Board Handler
1.1 www 3: #
1.38 ! raeburn 4: # $Id: lonbulletin.pm,v 1.37 2006/07/17 21:59:24 raeburn Exp $
1.1 www 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;
1.6 www 36: use Apache::lonfeedback;
1.15 www 37: use Apache::lonlocal;
1.36 raeburn 38: use Apache::lonhtmlcommon;
39: use LONCAPA;
1.1 www 40:
41: sub handler {
42: my $r = shift;
1.16 www 43: &Apache::loncommon::content_type($r,'text/html');
1.1 www 44: $r->send_http_header;
45: return OK if $r->header_only;
1.29 albertel 46: my $target=$env{'form.grade_target'};
1.23 sakharuk 47:
1.1 www 48: # ------------------------------------------------------------ Print the screen
1.32 albertel 49: if ($target eq 'tex') {
1.29 albertel 50: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
1.23 sakharuk 51: }
1.2 www 52: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
1.1 www 53: # Is this even in a course?
1.32 albertel 54: if (!$env{'request.course.id'}) {
1.34 albertel 55: &Apache::loncommon::simple_error_page($r,'Not in a course',
1.36 raeburn 56: 'Not in a course');
1.1 www 57: return OK;
58: }
59:
60: $marker=~s/\D//g;
61:
1.32 albertel 62: if (!$marker) {
1.34 albertel 63: &Apache::loncommon::simple_error_page($r,'Invalid Call',
64: 'Invalid Call');
1.1 www 65: return OK;
66: }
67:
1.29 albertel 68: my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
69: my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
1.36 raeburn 70: my ($group,$grp_desc);
1.1 www 71:
72: # --------------------------------------------------------- The syllabus fields
1.17 www 73: my %syllabusfields=&Apache::lonlocal::texthash(
1.2 www 74: 'aaa_title' => 'Topic',
75: 'bbb_content' => 'Task',
1.1 www 76: 'ccc_webreferences' => 'Web References');
77:
1.7 www 78: # ------------------------------------------------------------ Get Query String
79: &Apache::loncommon::get_unprocessed_cgi
1.36 raeburn 80: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register',
1.37 raeburn 81: 'origpage','group','ref']);
1.7 www 82: # ----------------------------------------------------- Force menu registration
1.35 albertel 83: my %addentries;
84: if ($env{'form.origpage'}) {
85: $addentries{'onload'} = "document.location='#newpost';";
1.7 www 86: }
1.1 www 87: # --------------------------------------------------------------- Force Student
88: my $forcestudent='';
1.29 albertel 89: if ($env{'form.forcestudent'}) { $forcestudent='student'; }
1.19 www 90:
91: my $forceedit='';
1.29 albertel 92: if ($env{'form.forceedit'}) { $forceedit='edit'; }
1.37 raeburn 93: my $refarg = '';
94: if (exists($env{'form.ref'})) { $refarg = 'ref='.$env{'form.ref'}; }
1.1 www 95:
96: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
1.36 raeburn 97:
98: my $boardurl = $r->uri;
99: if ($boardurl =~ m|/adm/\Q$dom\E/\Q$crs\E/\d+/bulletinboard|) {
100: if (!exists($syllabus{'group'})) {
101: &Apache::loncommon::simple_error_page($r,'Group information missing',
102: 'Group information missing');
103:
104: return OK;
105: } else {
106: $group = $syllabus{'group'};
107: if ($group eq '') {
108: &Apache::loncommon::simple_error_page($r,'Invalid group',
109: 'Invalid group');
110: return OK;
111: }
112: my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$group);
113: if (!defined($curr_groups{$group})) {
114: &Apache::loncommon::simple_error_page($r,'Invalid group',
115: 'Invalid group');
116: return OK;
117: } else {
118: my %content = &Apache::longroup::get_group_settings(
119: $curr_groups{$group});
120: $grp_desc = &unescape($content{'description'});
121: }
122: }
123: }
1.1 www 124:
125: # --------------------------------------- There is such a user, get environment
1.32 albertel 126: if ($target ne 'tex') {
127: my $start_page =
128: &Apache::loncommon::start_page("Bulletin Board/Discussion",undef,
129: {'function' => $forcestudent,
1.35 albertel 130: 'add_entries' => \%addentries,
1.33 albertel 131: 'domain' => $dom,
1.32 albertel 132: 'force_register' =>
133: $env{'form.register'}});
134: $r->print($start_page);
1.36 raeburn 135: if ($group ne '' && $env{'form.group'} eq $group) {
136: my $gpterm = &Apache::loncommon::group_term();
137: my $ucgpterm = $gpterm;
138: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.37 raeburn 139: my ($groupboards,$boards) =
140: &Apache::longroup::get_group_bbinfo($dom,$crs,$group,$boardurl);
141: my $boardtitle;
142: if ((ref($groupboards) eq 'ARRAY') && (@{$groupboards} > 0)) {
143: $boardtitle = $$boards{$$groupboards[0]}{'title'};
144: }
1.36 raeburn 145: $boardurl .= '?register=1&group='.$group;
1.37 raeburn 146: $r->print(&groupboard_breadcrumbs($dom,$crs,$group,$refarg,$gpterm,
1.36 raeburn 147: $ucgpterm,$grp_desc,$boardurl,$boardtitle));
148: }
149: }
150: my ($allowed);
151: if ($group ne '') {
1.37 raeburn 152: $allowed=&Apache::lonnet::allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1.36 raeburn 153: if (!$allowed) {
154: $allowed = &Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
155: '/'.$group);
156: }
157: if (!$allowed) {
1.37 raeburn 158: if ((!&Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) &&
1.36 raeburn 159: (!&Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
160: '/'.$group))) {
161: &print_end_page($r,$target);
162: return OK;
163: }
164: }
165: } else {
166: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.23 sakharuk 167: }
1.1 www 168:
1.19 www 169: my $privileged=$allowed;
170: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
171: $forcestudent='student';
172: }
1.27 albertel 173: if ($target ne 'tex') { $r->print('<table><tr><td>'); }
1.23 sakharuk 174: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.1 www 175:
1.23 sakharuk 176: if ($allowed) {
1.36 raeburn 177: my $query_str = 'forcestudent=1';
178: if (($group ne '') && ($env{'form.group'} eq $group)) {
1.37 raeburn 179: $query_str.='&group='.$group.'&'.$refarg;
1.36 raeburn 180: }
1.1 www 181: $r->print(
1.6 www 182: '<p>'.
1.36 raeburn 183: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'.&mt('Show Student View').'</font></a>'.
1.5 www 184: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
1.23 sakharuk 185: } elsif ($privileged and $target ne 'tex') {
1.36 raeburn 186: my $query_str = 'forceedit=edit';
187: if (($group ne '') && ($env{'form.group'} eq $group)) {
1.37 raeburn 188: $query_str.='&group='.$group.'&'.$refarg;
1.36 raeburn 189: }
190: $r->print('<a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'
1.19 www 191: .&mt('Edit').'</font></a>');
192: }
193:
1.29 albertel 194: if (($env{'form.uploaddoc.filename'}) &&
195: ($env{'form.storeupl'}) && ($allowed)) {
196: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
1.20 albertel 197: if ($syllabus{'uploaded.photourl'}) {
198: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
199: }
1.38 ! raeburn 200: if ($group ne '') {
! 201: $syllabus{'uploaded.photourl'}=
! 202: &Apache::lonnet::userfileupload('uploaddoc',1,
! 203: 'bulletin/'.$group.'/'.$marker);
! 204: } else {
! 205: $syllabus{'uploaded.photourl'}=
! 206: &Apache::lonnet::userfileupload('uploaddoc',1,
! 207: 'bulletin/'.$marker);
! 208: }
1.1 www 209: }
210: $syllabus{'uploaded.lastmodified'}=time;
211: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
212: }
1.29 albertel 213: if (($allowed) && ($env{'form.storesyl'})) {
1.1 www 214: foreach (keys %syllabusfields) {
1.29 albertel 215: my $field=$env{'form.'.$_};
1.1 www 216: $field=~s/\s+$//s;
1.5 www 217: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.1 www 218: $syllabus{$_}=$field;
219: }
220: $syllabus{'uploaded.lastmodified'}=time;
221: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
222: }
223:
224: # ---------------------------------------------------------------- Get syllabus
225: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
226: if ($syllabus{'uploaded.photourl'}) {
1.20 albertel 227: &Apache::lonnet::allowuploaded('/adm/syllabus',
228: $syllabus{'uploaded.photourl'});
229: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
230: '" align="right" />');
1.1 www 231: }
232: if ($allowed) {
233: $r->print(
234: '<form method="post" enctype="multipart/form-data">'.
1.19 www 235: '<input type="hidden" name="forceedit" value="edit" />'.
236: '<h3>'.&mt('Upload a Photo').'</h3>'.
1.1 www 237: '<input type="file" name="uploaddoc" size="50">'.
1.19 www 238: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
1.1 www 239: '</form><form method="post">');
240: }
241: foreach (sort keys %syllabusfields) {
242: if (($syllabus{$_}) || ($allowed)) {
243: my $message=$syllabus{$_};
1.30 albertel 244: &Apache::lonfeedback::newline_to_br(\$message);
245: $message
1.10 www 246: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
1.25 www 247: if ($allowed) {
248: $message=&Apache::lonspeller::markeduptext($message);
249: }
1.31 www 250: $message=&Apache::lontexconvert::msgtexconverted($message);
1.25 www 251: unless ($_ eq 'aaa_title') {
1.2 www 252: if (($_ ne 'bbb_content') || ($allowed)) {
1.23 sakharuk 253: if ($target ne 'tex') {
254: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
255: } else {
256: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\');
257: }
258: }
259: if ($target ne 'tex') {
260: $r->print('<blockquote>'.
261: $message.'</blockquote>');
262: } else {
263: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
1.2 www 264: }
265: if ($allowed) {
1.3 www 266: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
1.1 www 267: $syllabus{$_}.
1.19 www 268: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
1.2 www 269: }
270: } else {
1.23 sakharuk 271: if ($target ne 'tex') {
272: $r->print('<h1>'.$message.'</h1>');
273: } else {
274: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
275: }
1.2 www 276: if ($allowed) {
277: $r->print(
1.19 www 278: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
1.2 www 279: $syllabus{$_}.
1.19 www 280: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
1.2 www 281: }
282: }
1.1 www 283: }
284: }
285: if ($allowed) {
286: $r->print('</form>');
287: }
1.23 sakharuk 288: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.1 www 289: } else {
1.19 www 290: $r->print('<p>'.&mt('No page information provided.').'</p>');
1.1 www 291: }
1.27 albertel 292: if ($target ne 'tex') { $r->print('</td></tr></table>'); }
1.23 sakharuk 293: if ($target ne 'tex') {
294: $r->print(&Apache::lonfeedback::list_discussion
295: ('board','OPEN','bulletin___'.$marker.'___'.
1.37 raeburn 296: $r->uri,undef,$group));
1.23 sakharuk 297: } else {
298: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
299: ('board','OPEN','bulletin___'.$marker.'___'.
1.37 raeburn 300: $r->uri,undef,$group)));
1.23 sakharuk 301: }
1.36 raeburn 302: &print_end_page($r,$target);
303: return OK;
304: }
305:
306: sub print_end_page {
307: my ($r,$target) = @_;
1.32 albertel 308: if ($target ne 'tex') {
1.36 raeburn 309: $r->print(&Apache::loncommon::end_page());
1.32 albertel 310: } else {
1.36 raeburn 311: $r->print('\end{document}');
1.32 albertel 312: }
1.36 raeburn 313: }
314:
315: sub groupboard_breadcrumbs {
1.37 raeburn 316: my ($cdom,$cnum,$group,$refarg,$gpterm,$ucgpterm,$description,$boardurl,
317: $boardtitle)= @_;
1.36 raeburn 318: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.37 raeburn 319: if ($refarg ne '') {
320: &Apache::lonhtmlcommon::add_breadcrumb
321: ({href=>"/adm/coursegroups",
322: text=>"Groups",
323: title=>"View course groups"});
324: }
1.36 raeburn 325: &Apache::lonhtmlcommon::add_breadcrumb
1.37 raeburn 326: ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
1.36 raeburn 327: text=>"$ucgpterm: $description",
328: title=>"Go to group's home page"},
1.37 raeburn 329: {href=>"/adm/groupboards?group=$group&$refarg",
1.36 raeburn 330: text=>"Discussion Boards",
331: title=>"Display group discussion boards"},
332: {href=>"$boardurl",
333: text=>"$boardtitle",
334: title=>"$boardtitle"},
335: );
336: my $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
337: return $output;
338: }
1.1 www 339:
340: 1;
341: __END__
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