Annotation of loncom/interface/lonbulletin.pm, revision 1.36
1.1 www 1: # The LearningOnline Network
1.5 www 2: # Bulletin Board Handler
1.1 www 3: #
1.36 ! raeburn 4: # $Id: lonbulletin.pm,v 1.35 2006/04/10 19:59:53 albertel 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: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register',
! 81: 'origpage','group']);
1.7 www 82: # ----------------------------------------------------- Force menu registration
1.35 albertel 83: my %addentries;
84: if ($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'}) { $forceedit='edit'; }
1.1 www 93:
94: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
1.36 ! raeburn 95:
! 96: my $boardurl = $r->uri;
! 97: if ($boardurl =~ m|/adm/\Q$dom\E/\Q$crs\E/\d+/bulletinboard|) {
! 98: if (!exists($syllabus{'group'})) {
! 99: &Apache::loncommon::simple_error_page($r,'Group information missing',
! 100: 'Group information missing');
! 101:
! 102: return OK;
! 103: } else {
! 104: $group = $syllabus{'group'};
! 105: if ($group eq '') {
! 106: &Apache::loncommon::simple_error_page($r,'Invalid group',
! 107: 'Invalid group');
! 108: return OK;
! 109: }
! 110: my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$group);
! 111: if (!defined($curr_groups{$group})) {
! 112: &Apache::loncommon::simple_error_page($r,'Invalid group',
! 113: 'Invalid group');
! 114: return OK;
! 115: } else {
! 116: my %content = &Apache::longroup::get_group_settings(
! 117: $curr_groups{$group});
! 118: $grp_desc = &unescape($content{'description'});
! 119: }
! 120: }
! 121: }
1.1 www 122:
123: # --------------------------------------- There is such a user, get environment
1.32 albertel 124: if ($target ne 'tex') {
125: my $start_page =
126: &Apache::loncommon::start_page("Bulletin Board/Discussion",undef,
127: {'function' => $forcestudent,
1.35 albertel 128: 'add_entries' => \%addentries,
1.33 albertel 129: 'domain' => $dom,
1.32 albertel 130: 'force_register' =>
131: $env{'form.register'}});
132: $r->print($start_page);
1.36 ! raeburn 133: if ($group ne '' && $env{'form.group'} eq $group) {
! 134: my $gpterm = &Apache::loncommon::group_term();
! 135: my $ucgpterm = $gpterm;
! 136: $ucgpterm =~ s/^(\w)/uc($1)/e;
! 137: my ($groupboards,$boards) = &Apache::longroup::get_group_bbinfo(
! 138: $dom,$crs,$group);
! 139: my $boardtitle = $$boards{$marker}{'title'};
! 140: $boardurl .= '?register=1&group='.$group;
! 141: $r->print(&groupboard_breadcrumbs($dom,$crs,$group,$gpterm,
! 142: $ucgpterm,$grp_desc,$boardurl,$boardtitle));
! 143: }
! 144: }
! 145: my ($allowed);
! 146: if ($group ne '') {
! 147: $allowed=&Apache::lonnet::allowed('mdg',$env{'request.course.id'});
! 148: if (!$allowed) {
! 149: $allowed = &Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
! 150: '/'.$group);
! 151: }
! 152: if (!$allowed) {
! 153: if ((!&Apache::lonnet::allowed('vcg',$env{'request.course.id'})) &&
! 154: (!&Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
! 155: '/'.$group))) {
! 156: &print_end_page($r,$target);
! 157: return OK;
! 158: }
! 159: }
! 160: } else {
! 161: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.23 sakharuk 162: }
1.1 www 163:
1.19 www 164: my $privileged=$allowed;
165: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
166: $forcestudent='student';
167: }
1.27 albertel 168: if ($target ne 'tex') { $r->print('<table><tr><td>'); }
1.23 sakharuk 169: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.1 www 170:
1.23 sakharuk 171: if ($allowed) {
1.36 ! raeburn 172: my $query_str = 'forcestudent=1';
! 173: if (($group ne '') && ($env{'form.group'} eq $group)) {
! 174: $query_str.='&group='.$group;
! 175: }
1.1 www 176: $r->print(
1.6 www 177: '<p>'.
1.36 ! raeburn 178: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'.&mt('Show Student View').'</font></a>'.
1.5 www 179: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
1.23 sakharuk 180: } elsif ($privileged and $target ne 'tex') {
1.36 ! raeburn 181: my $query_str = 'forceedit=edit';
! 182: if (($group ne '') && ($env{'form.group'} eq $group)) {
! 183: $query_str.='&group='.$group;
! 184: }
! 185: $r->print('<a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'
1.19 www 186: .&mt('Edit').'</font></a>');
187: }
188:
1.29 albertel 189: if (($env{'form.uploaddoc.filename'}) &&
190: ($env{'form.storeupl'}) && ($allowed)) {
191: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
1.20 albertel 192: if ($syllabus{'uploaded.photourl'}) {
193: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
194: }
195: $syllabus{'uploaded.photourl'}=
196: &Apache::lonnet::userfileupload('uploaddoc',1,'bulletin');
1.1 www 197: }
198: $syllabus{'uploaded.lastmodified'}=time;
199: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
200: }
1.29 albertel 201: if (($allowed) && ($env{'form.storesyl'})) {
1.1 www 202: foreach (keys %syllabusfields) {
1.29 albertel 203: my $field=$env{'form.'.$_};
1.1 www 204: $field=~s/\s+$//s;
1.5 www 205: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.1 www 206: $syllabus{$_}=$field;
207: }
208: $syllabus{'uploaded.lastmodified'}=time;
209: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
210: }
211:
212: # ---------------------------------------------------------------- Get syllabus
213: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
214: if ($syllabus{'uploaded.photourl'}) {
1.20 albertel 215: &Apache::lonnet::allowuploaded('/adm/syllabus',
216: $syllabus{'uploaded.photourl'});
217: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
218: '" align="right" />');
1.1 www 219: }
220: if ($allowed) {
221: $r->print(
222: '<form method="post" enctype="multipart/form-data">'.
1.19 www 223: '<input type="hidden" name="forceedit" value="edit" />'.
224: '<h3>'.&mt('Upload a Photo').'</h3>'.
1.1 www 225: '<input type="file" name="uploaddoc" size="50">'.
1.19 www 226: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'.
1.1 www 227: '</form><form method="post">');
228: }
229: foreach (sort keys %syllabusfields) {
230: if (($syllabus{$_}) || ($allowed)) {
231: my $message=$syllabus{$_};
1.30 albertel 232: &Apache::lonfeedback::newline_to_br(\$message);
233: $message
1.10 www 234: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
1.25 www 235: if ($allowed) {
236: $message=&Apache::lonspeller::markeduptext($message);
237: }
1.31 www 238: $message=&Apache::lontexconvert::msgtexconverted($message);
1.25 www 239: unless ($_ eq 'aaa_title') {
1.2 www 240: if (($_ ne 'bbb_content') || ($allowed)) {
1.23 sakharuk 241: if ($target ne 'tex') {
242: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
243: } else {
244: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\');
245: }
246: }
247: if ($target ne 'tex') {
248: $r->print('<blockquote>'.
249: $message.'</blockquote>');
250: } else {
251: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
1.2 www 252: }
253: if ($allowed) {
1.3 www 254: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'.
1.1 www 255: $syllabus{$_}.
1.19 www 256: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
1.2 www 257: }
258: } else {
1.23 sakharuk 259: if ($target ne 'tex') {
260: $r->print('<h1>'.$message.'</h1>');
261: } else {
262: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
263: }
1.2 www 264: if ($allowed) {
265: $r->print(
1.19 www 266: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'.
1.2 www 267: $syllabus{$_}.
1.19 www 268: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />');
1.2 www 269: }
270: }
1.1 www 271: }
272: }
273: if ($allowed) {
274: $r->print('</form>');
275: }
1.23 sakharuk 276: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.1 www 277: } else {
1.19 www 278: $r->print('<p>'.&mt('No page information provided.').'</p>');
1.1 www 279: }
1.27 albertel 280: if ($target ne 'tex') { $r->print('</td></tr></table>'); }
1.23 sakharuk 281: if ($target ne 'tex') {
282: $r->print(&Apache::lonfeedback::list_discussion
283: ('board','OPEN','bulletin___'.$marker.'___'.
284: $r->uri));
285: } else {
286: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
287: ('board','OPEN','bulletin___'.$marker.'___'.
288: $r->uri)));
289: }
1.36 ! raeburn 290: &print_end_page($r,$target);
! 291: return OK;
! 292: }
! 293:
! 294: sub print_end_page {
! 295: my ($r,$target) = @_;
1.32 albertel 296: if ($target ne 'tex') {
1.36 ! raeburn 297: $r->print(&Apache::loncommon::end_page());
1.32 albertel 298: } else {
1.36 ! raeburn 299: $r->print('\end{document}');
1.32 albertel 300: }
1.36 ! raeburn 301: }
! 302:
! 303: sub groupboard_breadcrumbs {
! 304: my ($cdom,$cnum,$group,$gpterm,$ucgpterm,$description,$boardurl,$boardtitle)= @_;
! 305: &Apache::lonhtmlcommon::clear_breadcrumbs();
! 306: &Apache::lonhtmlcommon::add_breadcrumb
! 307: ({href=>"/adm/$cdom/$cnum/$group/smppg",
! 308: text=>"$ucgpterm: $description",
! 309: title=>"Go to group's home page"},
! 310: {href=>"/adm/groupboards?group=$group",
! 311: text=>"Discussion Boards",
! 312: title=>"Display group discussion boards"},
! 313: {href=>"$boardurl",
! 314: text=>"$boardtitle",
! 315: title=>"$boardtitle"},
! 316: );
! 317: my $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
! 318: return $output;
! 319: }
1.1 www 320:
321: 1;
322: __END__
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