Annotation of loncom/interface/lonbulletin.pm, revision 1.49
1.1 www 1: # The LearningOnline Network
1.5 www 2: # Bulletin Board Handler
1.1 www 3: #
1.49 ! bisitz 4: # $Id: lonbulletin.pm,v 1.48 2009/04/04 21:47:40 bisitz 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;
1.39 albertel 39: use HTML::Entities();
1.36 raeburn 40: use LONCAPA;
1.1 www 41:
42: sub handler {
43: my $r = shift;
1.16 www 44: &Apache::loncommon::content_type($r,'text/html');
1.1 www 45: $r->send_http_header;
46: return OK if $r->header_only;
1.29 albertel 47: my $target=$env{'form.grade_target'};
1.23 sakharuk 48:
1.1 www 49: # ------------------------------------------------------------ Print the screen
1.32 albertel 50: if ($target eq 'tex') {
1.49 ! bisitz 51: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
1.23 sakharuk 52: }
1.2 www 53: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri);
1.1 www 54: # Is this even in a course?
1.32 albertel 55: if (!$env{'request.course.id'}) {
1.49 ! bisitz 56: &Apache::loncommon::simple_error_page($r,'Not in a course',
! 57: 'Not in a course');
1.1 www 58: return OK;
59: }
60:
61: $marker=~s/\D//g;
62:
1.32 albertel 63: if (!$marker) {
1.49 ! bisitz 64: &Apache::loncommon::simple_error_page($r,'Invalid Call',
! 65: 'Invalid Call');
1.1 www 66: return OK;
67: }
68:
1.29 albertel 69: my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
70: my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
1.36 raeburn 71: my ($group,$grp_desc);
1.1 www 72:
73: # --------------------------------------------------------- The syllabus fields
1.17 www 74: my %syllabusfields=&Apache::lonlocal::texthash(
1.2 www 75: 'aaa_title' => 'Topic',
76: 'bbb_content' => 'Task',
1.1 www 77: 'ccc_webreferences' => 'Web References');
78:
1.7 www 79: # ------------------------------------------------------------ Get Query String
80: &Apache::loncommon::get_unprocessed_cgi
1.36 raeburn 81: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register',
1.37 raeburn 82: 'origpage','group','ref']);
1.7 www 83: # ----------------------------------------------------- Force menu registration
1.35 albertel 84: my %addentries;
85: if ($env{'form.origpage'}) {
1.49 ! bisitz 86: $addentries{'onload'} = "document.location='#newpost';";
1.7 www 87: }
1.1 www 88: # --------------------------------------------------------------- Force Student
89: my $forcestudent='';
1.29 albertel 90: if ($env{'form.forcestudent'}) { $forcestudent='student'; }
1.19 www 91:
92: my $forceedit='';
1.29 albertel 93: if ($env{'form.forceedit'}) { $forceedit='edit'; }
1.37 raeburn 94: my $refarg = '';
95: if (exists($env{'form.ref'})) { $refarg = 'ref='.$env{'form.ref'}; }
1.1 www 96:
97: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs);
1.36 raeburn 98:
99: my $boardurl = $r->uri;
100: if ($boardurl =~ m|/adm/\Q$dom\E/\Q$crs\E/\d+/bulletinboard|) {
101: if (!exists($syllabus{'group'})) {
102: &Apache::loncommon::simple_error_page($r,'Group information missing',
103: 'Group information missing');
104:
105: return OK;
106: } else {
107: $group = $syllabus{'group'};
108: if ($group eq '') {
109: &Apache::loncommon::simple_error_page($r,'Invalid group',
110: 'Invalid group');
111: return OK;
112: }
113: my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$group);
114: if (!defined($curr_groups{$group})) {
115: &Apache::loncommon::simple_error_page($r,'Invalid group',
116: 'Invalid group');
117: return OK;
118: } else {
119: my %content = &Apache::longroup::get_group_settings(
120: $curr_groups{$group});
121: $grp_desc = &unescape($content{'description'});
122: }
123: }
124: }
1.49 ! bisitz 125:
1.1 www 126: # --------------------------------------- There is such a user, get environment
1.49 ! bisitz 127: if ($target ne 'tex') {
! 128: my $course_or_group;
! 129: if($group eq '') {
! 130: $course_or_group="Course";
! 131: } else {
! 132: $course_or_group="Group";
! 133: }
! 134: my $start_page =
! 135: &Apache::loncommon::start_page("$course_or_group Discussion Board",undef,
! 136: {'function' => $forcestudent,
! 137: 'add_entries' => \%addentries,
! 138: 'domain' => $dom,
! 139: 'force_register' =>
! 140: $env{'form.register'}});
! 141: $r->print($start_page);
1.36 raeburn 142: if ($group ne '' && $env{'form.group'} eq $group) {
143: my $gpterm = &Apache::loncommon::group_term();
144: my $ucgpterm = $gpterm;
145: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.37 raeburn 146: my ($groupboards,$boards) =
147: &Apache::longroup::get_group_bbinfo($dom,$crs,$group,$boardurl);
148: my $boardtitle;
149: if ((ref($groupboards) eq 'ARRAY') && (@{$groupboards} > 0)) {
150: $boardtitle = $$boards{$$groupboards[0]}{'title'};
151: }
1.36 raeburn 152: $boardurl .= '?register=1&group='.$group;
1.37 raeburn 153: $r->print(&groupboard_breadcrumbs($dom,$crs,$group,$refarg,$gpterm,
1.36 raeburn 154: $ucgpterm,$grp_desc,$boardurl,$boardtitle));
155: }
156: }
157: my ($allowed);
158: if ($group ne '') {
1.37 raeburn 159: $allowed=&Apache::lonnet::allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1.36 raeburn 160: if (!$allowed) {
161: $allowed = &Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
162: '/'.$group);
163: }
164: if (!$allowed) {
1.37 raeburn 165: if ((!&Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) &&
1.36 raeburn 166: (!&Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
1.49 ! bisitz 167: '/'.$group))) {
1.36 raeburn 168: &print_end_page($r,$target);
1.49 ! bisitz 169: return OK;
1.36 raeburn 170: }
171: }
172: } else {
173: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.23 sakharuk 174: }
1.1 www 175:
1.19 www 176: my $privileged=$allowed;
177: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
1.49 ! bisitz 178: $forcestudent='student';
1.19 www 179: }
1.27 albertel 180: if ($target ne 'tex') { $r->print('<table><tr><td>'); }
1.49 ! bisitz 181: if ($forcestudent or $target eq 'tex') { $allowed=0; }
! 182:
! 183: if ($allowed) {
! 184: my $query_str = 'forcestudent=1';
! 185: if (($group ne '') && ($env{'form.group'} eq $group)) {
! 186: $query_str.='&group='.$group.'&'.$refarg;
! 187: }
! 188: $r->print(
! 189: '<p>'.
! 190: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'<br /><a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'.&mt('Show Student View').'</font></a>'.
! 191: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
! 192: } elsif ($privileged and $target ne 'tex') {
! 193: my $query_str = 'forceedit=edit';
! 194: if (($group ne '') && ($env{'form.group'} eq $group)) {
! 195: $query_str.='&group='.$group.'&'.$refarg;
! 196: }
! 197: $r->print('<a href="'.$r->uri.'?'.$query_str.'"><font size="+1">'
! 198: .&mt('Edit').'</font></a>');
! 199: }
! 200:
! 201: if (($env{'form.uploaddoc.filename'}) &&
! 202: ($env{'form.storeupl'}) && ($allowed)) {
! 203: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
! 204: if ($syllabus{'uploaded.photourl'}) {
! 205: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
! 206: }
! 207: if ($group ne '') {
! 208: $syllabus{'uploaded.photourl'}=
! 209: &Apache::lonnet::userfileupload('uploaddoc',1,
! 210: 'bulletin/'.$group.'/'.$marker);
! 211: } else {
! 212: $syllabus{'uploaded.photourl'}=
! 213: &Apache::lonnet::userfileupload('uploaddoc',1,
1.38 raeburn 214: 'bulletin/'.$marker);
1.49 ! bisitz 215: }
! 216: }
! 217: $syllabus{'uploaded.lastmodified'}=time;
! 218: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
! 219: }
! 220: if (($allowed) && ($env{'form.storesyl'})) {
! 221: foreach my $syl_field (keys(%syllabusfields)) {
! 222: my $field=$env{'form.'.$syl_field};
! 223: $field=~s/\s+$//s;
! 224: $field=&Apache::lonfeedback::clear_out_html($field,1);
! 225: $syllabus{$syl_field}=$field;
! 226: }
! 227: $syllabus{'uploaded.lastmodified'}=time;
! 228: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
! 229: }
1.1 www 230:
231: # ---------------------------------------------------------------- Get syllabus
232: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.49 ! bisitz 233: if ($syllabus{'uploaded.photourl'}) {
! 234: &Apache::lonnet::allowuploaded('/adm/syllabus',
! 235: $syllabus{'uploaded.photourl'});
! 236: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.
! 237: '" align="right" />');
! 238: }
! 239: if ($allowed) {
! 240: $r->print(
! 241: '<form method="post" enctype="multipart/form-data">'.
! 242: '<input type="hidden" name="forceedit" value="edit" />'.
! 243: '<h3>'.&mt('Upload a Photo').'</h3>'.
! 244: '<input type="file" name="uploaddoc" size="50" />'.
! 245: '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
! 246: '</form><form method="post">'.
! 247: '<input type="hidden" name="forceedit" value="edit" />');
! 248: }
! 249: foreach my $field (sort(keys(%syllabusfields))) {
! 250: if (($syllabus{$field}) || ($allowed)) {
! 251: my $message=$syllabus{$field};
! 252: &Apache::lonfeedback::newline_to_br(\$message);
! 253: $message
! 254: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
1.2 www 255: if ($allowed) {
1.49 ! bisitz 256: $message=&Apache::lonspeller::markeduptext($message);
! 257: }
! 258: $message=&Apache::lontexconvert::msgtexconverted($message);
! 259: unless ($field eq 'aaa_title') {
! 260: if (($field ne 'bbb_content') || ($allowed)) {
! 261: if ($target ne 'tex') {
! 262: $r->print('<h3>'.$syllabusfields{$field}.'</h3>');
! 263: } else {
! 264: $r->print('\\\\\textbf{'.$syllabusfields{$field}.'}\\\\');
! 265: }
! 266: }
! 267: if ($target ne 'tex') {
! 268: $r->print('<blockquote>'.
! 269: $message.'</blockquote>');
! 270: } else {
! 271: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$message).' ');
! 272: }
! 273: if ($allowed) {
! 274: $r->print('<br /><textarea cols="80" rows="10" name="'.$field.'">'.
! 275: &HTML::Entities::encode($syllabus{$field},'&"<>').
! 276: '</textarea><input type="submit" name="storesyl" value="'.&mt('Save').'" />');
! 277: }
! 278: } else {
! 279: if ($target ne 'tex') {
! 280: $r->print('<h1>'.$message.'</h1>');
! 281: } else {
! 282: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$message).'}\\\\');
! 283: }
! 284: if ($allowed) {
! 285: $r->print(
! 286: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$field.'">'.
! 287: &HTML::Entities::encode($syllabus{$field},'&"<>').
! 288: '</textarea><input type="submit" name="storesyl" value="'.&mt('Save').'" />');
! 289: }
1.2 www 290: }
291: }
1.49 ! bisitz 292: }
! 293: if ($allowed) {
! 294: $r->print('</form>');
! 295: }
! 296: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.1 www 297: } else {
1.49 ! bisitz 298: $r->print('<p>'.&mt('No page information provided.').'</p>');
1.1 www 299: }
1.27 albertel 300: if ($target ne 'tex') { $r->print('</td></tr></table>'); }
1.23 sakharuk 301: if ($target ne 'tex') {
1.49 ! bisitz 302: $r->print(&Apache::lonfeedback::list_discussion
! 303: ('board','OPEN','bulletin___'.$marker.'___'.
! 304: $r->uri,undef,$group));
1.23 sakharuk 305: } else {
1.49 ! bisitz 306: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
! 307: ('board','OPEN','bulletin___'.$marker.'___'.
! 308: $r->uri,undef,$group)));
1.23 sakharuk 309: }
1.36 raeburn 310: &print_end_page($r,$target);
311: return OK;
312: }
313:
314: sub print_end_page {
315: my ($r,$target) = @_;
1.32 albertel 316: if ($target ne 'tex') {
1.36 raeburn 317: $r->print(&Apache::loncommon::end_page());
1.32 albertel 318: } else {
1.36 raeburn 319: $r->print('\end{document}');
1.32 albertel 320: }
1.36 raeburn 321: }
322:
323: sub groupboard_breadcrumbs {
1.37 raeburn 324: my ($cdom,$cnum,$group,$refarg,$gpterm,$ucgpterm,$description,$boardurl,
325: $boardtitle)= @_;
1.36 raeburn 326: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.37 raeburn 327: if ($refarg ne '') {
328: &Apache::lonhtmlcommon::add_breadcrumb
329: ({href=>"/adm/coursegroups",
330: text=>"Groups",
331: title=>"View course groups"});
332: }
1.36 raeburn 333: &Apache::lonhtmlcommon::add_breadcrumb
1.37 raeburn 334: ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
1.36 raeburn 335: text=>"$ucgpterm: $description",
336: title=>"Go to group's home page"},
1.37 raeburn 337: {href=>"/adm/groupboards?group=$group&$refarg",
1.36 raeburn 338: text=>"Discussion Boards",
339: title=>"Display group discussion boards"},
340: {href=>"$boardurl",
341: text=>"$boardtitle",
342: title=>"$boardtitle"},
343: );
344: my $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
345: return $output;
346: }
1.1 www 347:
348: 1;
349: __END__
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