Annotation of loncom/interface/lonbulletin.pm, revision 1.66
1.1 www 1: # The LearningOnline Network
1.5 www 2: # Bulletin Board Handler
1.1 www 3: #
1.66 ! raeburn 4: # $Id: lonbulletin.pm,v 1.65 2012/11/17 00:05:50 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
1.66 ! raeburn 81: ($ENV{'QUERY_STRING'},['forceedit','register','todocs',
1.37 raeburn 82: 'origpage','group','ref']);
1.7 www 83: # ----------------------------------------------------- Force menu registration
1.35 albertel 84: my %addentries;
85: if ($env{'form.origpage'}) {
1.49 bisitz 86: $addentries{'onload'} = "document.location='#newpost';";
1.7 www 87: }
1.1 www 88: # --------------------------------------------------------------- Force Student
1.64 raeburn 89: my ($forceedit,$forcestudent);
90: $forceedit = $env{'form.forceedit'};
91: if (!$forceedit) {
92: $forcestudent=1;
93: }
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 ($target ne 'tex') {
1.64 raeburn 128: my ($course_or_group,$brcrum);
1.49 bisitz 129: if($group eq '') {
130: $course_or_group="Course";
131: } else {
132: $course_or_group="Group";
133: }
1.65 raeburn 134: my $registered;
1.36 raeburn 135: if ($group ne '' && $env{'form.group'} eq $group) {
1.65 raeburn 136: unless ($env{'form.ref'} eq 'grouplist') {
137: $registered = $env{'form.register'};
138: }
1.36 raeburn 139: my $gpterm = &Apache::loncommon::group_term();
140: my $ucgpterm = $gpterm;
141: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.37 raeburn 142: my ($groupboards,$boards) =
143: &Apache::longroup::get_group_bbinfo($dom,$crs,$group,$boardurl);
144: my $boardtitle;
145: if ((ref($groupboards) eq 'ARRAY') && (@{$groupboards} > 0)) {
146: $boardtitle = $$boards{$$groupboards[0]}{'title'};
147: }
1.65 raeburn 148: $boardurl .= '?group='.$group;
149: if ($registered) {
150: $boardurl .= '&register='.$env{'form.register'};
151: } else {
152: $brcrum =
153: &groupboard_breadcrumbs($dom,$crs,$group,$refarg,$gpterm,
154: $ucgpterm,$grp_desc,$boardurl,
155: $boardtitle);
156: }
1.64 raeburn 157: } else {
1.65 raeburn 158: $registered = $env{'form.register'};
1.64 raeburn 159: $brcrum = [];
1.36 raeburn 160: }
1.64 raeburn 161: my $start_page =
162: &Apache::loncommon::start_page("$course_or_group Discussion Board",undef,
163: {'add_entries' => \%addentries,
164: 'domain' => $dom,
165: 'bread_crumbs' => $brcrum,
166: 'group' => $group,
1.65 raeburn 167: 'force_register' => $registered}
168: );
1.64 raeburn 169: $r->print($start_page);
1.36 raeburn 170: }
171: my ($allowed);
172: if ($group ne '') {
1.37 raeburn 173: $allowed=&Apache::lonnet::allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1.36 raeburn 174: if (!$allowed) {
175: $allowed = &Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
176: '/'.$group);
177: }
178: if (!$allowed) {
1.37 raeburn 179: if ((!&Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) &&
1.36 raeburn 180: (!&Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
1.49 bisitz 181: '/'.$group))) {
1.36 raeburn 182: &print_end_page($r,$target);
1.49 bisitz 183: return OK;
1.36 raeburn 184: }
185: }
186: } else {
187: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.23 sakharuk 188: }
1.1 www 189:
1.49 bisitz 190: if ($forcestudent or $target eq 'tex') { $allowed=0; }
191:
192: if (($env{'form.uploaddoc.filename'}) &&
193: ($env{'form.storeupl'}) && ($allowed)) {
194: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
195: if ($syllabus{'uploaded.photourl'}) {
196: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
197: }
198: if ($group ne '') {
199: $syllabus{'uploaded.photourl'}=
1.62 raeburn 200: &Apache::lonnet::userfileupload('uploaddoc','coursedoc',
1.49 bisitz 201: 'bulletin/'.$group.'/'.$marker);
202: } else {
203: $syllabus{'uploaded.photourl'}=
1.62 raeburn 204: &Apache::lonnet::userfileupload('uploaddoc','coursedoc',
1.38 raeburn 205: 'bulletin/'.$marker);
1.49 bisitz 206: }
207: }
208: $syllabus{'uploaded.lastmodified'}=time;
209: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
210: }
211: if (($allowed) && ($env{'form.storesyl'})) {
212: foreach my $syl_field (keys(%syllabusfields)) {
213: my $field=$env{'form.'.$syl_field};
214: $field=~s/\s+$//s;
215: $field=&Apache::lonfeedback::clear_out_html($field,1);
216: $syllabus{$syl_field}=$field;
217: }
218: $syllabus{'uploaded.lastmodified'}=time;
219: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs);
220: }
1.1 www 221:
1.54 wenzelju 222: # ---------------------------------------------------------------- Get discussion board
1.1 www 223: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.56 wenzelju 224: #Print Topic as Heading
1.57 faziophi 225: my $titletext=&HTML::Entities::encode($syllabus{'aaa_title'},'<>&"');;
1.56 wenzelju 226: if ($target ne 'tex') {
227: $r->print('<h2>'.$titletext.'</h2>');
228: } else {
229: $r->print('\\\\\textbf{'.&Apache::lonxml::xmlparse($r,'tex',$titletext).'}\\\\');
230: }
231: #Outputbox and Inputbox for Topic
232: if ($allowed) {
233: $r->print('<form method="post" action="" enctype="multipart/form-data">');
1.57 faziophi 234: &Apache::lontemplate::print_start_template($r,&mt('Title'),'LC_Box');
235: $r->print($titletext);
236: $r->print("<br /><div>");
237: &Apache::lontemplate::print_textarea_template($r, $syllabus{'aaa_title'},
238: 'aaa_title', Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
239: &Apache::lontemplate::print_saveall_template($r);
240: $r->print("</div>");
241: &Apache::lontemplate::print_end_template($r);
1.56 wenzelju 242: }
1.49 bisitz 243: if ($syllabus{'uploaded.photourl'}) {
244: &Apache::lonnet::allowuploaded('/adm/syllabus',
245: $syllabus{'uploaded.photourl'});
246: }
1.53 wenzelju 247: #Outputbox and Inputbox for Image upload
1.49 bisitz 248: if ($allowed) {
1.57 faziophi 249: my $message = '<img src="'.$syllabus{'uploaded.photourl'}.'" alt="'.&mt('Image').'"/>';
250: &Apache::lontemplate::print_start_template($r, &mt('Upload a Photo'),'LC_Box');
251: $r->print($message);
252: $r->print("<br /><br />");
1.49 bisitz 253: $r->print(
1.64 raeburn 254: '<input type="hidden" name="forceedit" value="'.$env{'form.forceedit'}.'" />'.
1.49 bisitz 255: '<input type="file" name="uploaddoc" size="50" />'.
1.64 raeburn 256: '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />');
1.57 faziophi 257: &Apache::lontemplate::print_end_template($r);
1.49 bisitz 258: }
1.53 wenzelju 259: #Image in Student view.
260: elsif($syllabus{'uploaded.photourl'} && $target ne 'tex'){
1.55 wenzelju 261: $r->print('<img src="'.$syllabus{'uploaded.photourl'}.'" alt="'.&mt('Image').'"/>');
1.53 wenzelju 262: }
1.58 faziophi 263:
264: my %custom_handlers = ( 'aaa_title' => sub {} );
1.61 raeburn 265: &Apache::lontemplate::print_template_fields($r, \%syllabus, \%syllabusfields,
1.58 faziophi 266: $target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_handlers);
1.49 bisitz 267: if ($allowed) {
1.63 raeburn 268: $r->print('</form>');
1.49 bisitz 269: }
1.54 wenzelju 270: if ($target ne 'tex'){
271: $r->print('<br/><br/><hr/><br/>');
272: }
273: else {
274: $r->print(&Apache::lonxml::xmlparse($r,'tex','<br/><br/><hr/><br/>'));
275: }
1.1 www 276: } else {
1.60 www 277: if ($target ne 'tex') {
278: $r->print('<p>'.&mt('No page information provided.').'</p>');
279: }
1.1 www 280: }
1.53 wenzelju 281: #Lists discussion posts and box for a new discussion post.
1.23 sakharuk 282: if ($target ne 'tex') {
1.49 bisitz 283: $r->print(&Apache::lonfeedback::list_discussion
284: ('board','OPEN','bulletin___'.$marker.'___'.
285: $r->uri,undef,$group));
1.23 sakharuk 286: } else {
1.49 bisitz 287: $r->print('\\\\'.&Apache::lonxml::xmlparse($r,'tex',&Apache::lonfeedback::list_discussion
288: ('board','OPEN','bulletin___'.$marker.'___'.
289: $r->uri,undef,$group)));
1.23 sakharuk 290: }
1.36 raeburn 291: &print_end_page($r,$target);
292: return OK;
293: }
294:
295: sub print_end_page {
296: my ($r,$target) = @_;
1.32 albertel 297: if ($target ne 'tex') {
1.36 raeburn 298: $r->print(&Apache::loncommon::end_page());
1.32 albertel 299: } else {
1.36 raeburn 300: $r->print('\end{document}');
1.32 albertel 301: }
1.36 raeburn 302: }
303:
304: sub groupboard_breadcrumbs {
1.37 raeburn 305: my ($cdom,$cnum,$group,$refarg,$gpterm,$ucgpterm,$description,$boardurl,
306: $boardtitle)= @_;
1.36 raeburn 307: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.64 raeburn 308: my $brcrum = [];
1.37 raeburn 309: if ($refarg ne '') {
1.64 raeburn 310: push(@{$brcrum},
311: {href=>"/adm/coursegroups",
312: text=>"Groups",
313: title=>"View course groups"});
314: }
315: push(@{$brcrum},
316: {href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
317: text=>"$ucgpterm: $description",
318: title=>"Go to group's home page"},
319: {href=>"/adm/groupboards?group=$group&$refarg",
320: text=>"Discussion Boards",
321: title=>"Display group discussion boards"},
322: {href=>"$boardurl",
323: text=>"$boardtitle",
324: title=>"$boardtitle"},
1.36 raeburn 325: );
1.64 raeburn 326: return $brcrum;
1.36 raeburn 327: }
1.1 www 328:
329: 1;
330: __END__
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