Annotation of loncom/interface/lonbulletin.pm, revision 1.63
1.1 www 1: # The LearningOnline Network
1.5 www 2: # Bulletin Board Handler
1.1 www 3: #
1.63 ! raeburn 4: # $Id: lonbulletin.pm,v 1.62 2010/10/27 01:00:38 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;
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: $forcestudent='student';
1.19 www 179: }
1.49 bisitz 180: if ($forcestudent or $target eq 'tex') { $allowed=0; }
181:
182: if ($allowed) {
183: my $query_str = 'forcestudent=1';
184: if (($group ne '') && ($env{'form.group'} eq $group)) {
185: $query_str.='&group='.$group.'&'.$refarg;
186: }
1.59 raeburn 187: if ($env{'form.register'}) {
188: $query_str .= '&register='.$env{'form.register'};
189: }
1.53 wenzelju 190: #Function Box for Edit Mode.
191: my $functionbox = &Apache::lonhtmlcommon::start_funclist();
192: $functionbox .= &Apache::lonhtmlcommon::add_item_funclist(
193: '<a href="'.$r->uri.'?'.$query_str.'">'.&mt('Show Student View').'</a>'.
194: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'));
195: $functionbox.=&Apache::lonhtmlcommon::end_funclist();
196: $r->print(&Apache::loncommon::head_subbox($functionbox).&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
197: } elsif ($privileged and $target ne 'tex') {
1.49 bisitz 198: my $query_str = 'forceedit=edit';
199: if (($group ne '') && ($env{'form.group'} eq $group)) {
200: $query_str.='&group='.$group.'&'.$refarg;
201: }
1.59 raeburn 202: if ($env{'form.register'}) {
203: $query_str .= '&register='.$env{'form.register'};
204: }
1.53 wenzelju 205: #Functionbox for Student view.
206: my $functionbox = &Apache::lonhtmlcommon::start_funclist();
207: $functionbox .= &Apache::lonhtmlcommon::add_item_funclist(
208: "<a href='".$r->uri.'?'.$query_str."'>".&mt('Edit')."</a>");
209: $functionbox.=&Apache::lonhtmlcommon::end_funclist();
210: $r->print(&Apache::loncommon::head_subbox($functionbox));
1.49 bisitz 211: }
212:
213: if (($env{'form.uploaddoc.filename'}) &&
214: ($env{'form.storeupl'}) && ($allowed)) {
215: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
216: if ($syllabus{'uploaded.photourl'}) {
217: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
218: }
219: if ($group ne '') {
220: $syllabus{'uploaded.photourl'}=
1.62 raeburn 221: &Apache::lonnet::userfileupload('uploaddoc','coursedoc',
1.49 bisitz 222: 'bulletin/'.$group.'/'.$marker);
223: } else {
224: $syllabus{'uploaded.photourl'}=
1.62 raeburn 225: &Apache::lonnet::userfileupload('uploaddoc','coursedoc',
1.38 raeburn 226: 'bulletin/'.$marker);
1.49 bisitz 227: }
228: }
229: $syllabus{'uploaded.lastmodified'}=time;
230: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
231: }
232: if (($allowed) && ($env{'form.storesyl'})) {
233: foreach my $syl_field (keys(%syllabusfields)) {
234: my $field=$env{'form.'.$syl_field};
235: $field=~s/\s+$//s;
236: $field=&Apache::lonfeedback::clear_out_html($field,1);
237: $syllabus{$syl_field}=$field;
238: }
239: $syllabus{'uploaded.lastmodified'}=time;
240: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
241: }
1.1 www 242:
1.54 wenzelju 243: # ---------------------------------------------------------------- Get discussion board
1.1 www 244: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.56 wenzelju 245: #Print Topic as Heading
1.57 faziophi 246: my $titletext=&HTML::Entities::encode($syllabus{'aaa_title'},'<>&"');;
1.56 wenzelju 247: if ($target ne 'tex') {
248: $r->print('<h2>'.$titletext.'</h2>');
249: } else {
250: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$titletext).'}\\\\');
251: }
252: #Outputbox and Inputbox for Topic
253: if ($allowed) {
254: $r->print('<form method="post" action="" enctype="multipart/form-data">');
1.57 faziophi 255: &Apache::lontemplate::print_start_template($r,&mt('Title'),'LC_Box');
256: $r->print($titletext);
257: $r->print("<br /><div>");
258: &Apache::lontemplate::print_textarea_template($r, $syllabus{'aaa_title'},
259: 'aaa_title', Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
260: &Apache::lontemplate::print_saveall_template($r);
261: $r->print("</div>");
262: &Apache::lontemplate::print_end_template($r);
1.56 wenzelju 263: }
1.49 bisitz 264: if ($syllabus{'uploaded.photourl'}) {
265: &Apache::lonnet::allowuploaded('/adm/syllabus',
266: $syllabus{'uploaded.photourl'});
267: }
1.53 wenzelju 268: #Outputbox and Inputbox for Image upload
1.49 bisitz 269: if ($allowed) {
1.57 faziophi 270: my $message = '<img src="'.$syllabus{'uploaded.photourl'}.'" alt="'.&mt('Image').'"/>';
271: &Apache::lontemplate::print_start_template($r, &mt('Upload a Photo'),'LC_Box');
272: $r->print($message);
273: $r->print("<br /><br />");
1.49 bisitz 274: $r->print(
275: '<input type="hidden" name="forceedit" value="edit" />'.
276: '<input type="file" name="uploaddoc" size="50" />'.
277: '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
278: '<input type="hidden" name="forceedit" value="edit" />');
1.57 faziophi 279: &Apache::lontemplate::print_end_template($r);
1.49 bisitz 280: }
1.53 wenzelju 281: #Image in Student view.
282: elsif($syllabus{'uploaded.photourl'} && $target ne 'tex'){
1.55 wenzelju 283: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.'" alt="'.&mt('Image').'"/>');
1.53 wenzelju 284: }
1.58 faziophi 285:
286: my %custom_handlers = ( 'aaa_title' => sub {} );
1.61 raeburn 287: &Apache::lontemplate::print_template_fields($r, \%syllabus, \%syllabusfields,
1.58 faziophi 288: $target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_handlers);
1.49 bisitz 289: if ($allowed) {
1.63 ! raeburn 290: $r->print('</form>');
1.49 bisitz 291: }
1.54 wenzelju 292: if ($target ne 'tex'){
293: $r->print('<br/><br/><hr/><br/>');
294: }
295: else {
296: $r->print(&Apache::lonxml::xmlparse($r,'tex','<br/><br/><hr/><br/>'));
297: }
1.1 www 298: } else {
1.60 www 299: if ($target ne 'tex') {
300: $r->print('<p>'.&mt('No page information provided.').'</p>');
301: }
1.1 www 302: }
1.53 wenzelju 303: #Lists discussion posts and box for a new discussion post.
1.23 sakharuk 304: if ($target ne 'tex') {
1.49 bisitz 305: $r->print(&Apache::lonfeedback::list_discussion
306: ('board','OPEN','bulletin___'.$marker.'___'.
307: $r->uri,undef,$group));
1.23 sakharuk 308: } else {
1.49 bisitz 309: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
310: ('board','OPEN','bulletin___'.$marker.'___'.
311: $r->uri,undef,$group)));
1.23 sakharuk 312: }
1.36 raeburn 313: &print_end_page($r,$target);
314: return OK;
315: }
316:
317: sub print_end_page {
318: my ($r,$target) = @_;
1.32 albertel 319: if ($target ne 'tex') {
1.36 raeburn 320: $r->print(&Apache::loncommon::end_page());
1.32 albertel 321: } else {
1.36 raeburn 322: $r->print('\end{document}');
1.32 albertel 323: }
1.36 raeburn 324: }
325:
326: sub groupboard_breadcrumbs {
1.37 raeburn 327: my ($cdom,$cnum,$group,$refarg,$gpterm,$ucgpterm,$description,$boardurl,
328: $boardtitle)= @_;
1.36 raeburn 329: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.37 raeburn 330: if ($refarg ne '') {
331: &Apache::lonhtmlcommon::add_breadcrumb
332: ({href=>"/adm/coursegroups",
333: text=>"Groups",
334: title=>"View course groups"});
335: }
1.36 raeburn 336: &Apache::lonhtmlcommon::add_breadcrumb
1.37 raeburn 337: ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
1.36 raeburn 338: text=>"$ucgpterm: $description",
339: title=>"Go to group's home page"},
1.37 raeburn 340: {href=>"/adm/groupboards?group=$group&$refarg",
1.36 raeburn 341: text=>"Discussion Boards",
342: title=>"Display group discussion boards"},
343: {href=>"$boardurl",
344: text=>"$boardtitle",
345: title=>"$boardtitle"},
346: );
347: my $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
348: return $output;
349: }
1.1 www 350:
351: 1;
352: __END__
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