1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.290.2.7.2.3 2012/03/09 15:09:39 raeburn Exp $
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:
30: package Apache::lonfeedback;
31:
32: use strict;
33: use Apache::Constants qw(:common);
34: use Apache::lonmsg();
35: use Apache::loncommon();
36: use Apache::lontexconvert();
37: use Apache::lonlocal; # must not have ()
38: use Apache::lonnet;
39: use Apache::lonhtmlcommon();
40: use Apache::lonnavmaps;
41: use Apache::lonenc();
42: use Apache::lonrss();
43: use HTML::LCParser();
44: #use HTML::Tidy::libXML;
45: use Apache::lonspeller();
46: use Apache::longroup;
47: use Cwd;
48: use LONCAPA;
49:
50: sub discussion_open {
51: my ($status,$symb)=@_;
52: # Advanced roles can always discuss
53: if ($env{'request.role.adv'}) { return 1; }
54: # Get discussion closing date
55: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
56: # If it is defined and in the future, the instructor wants this discussion to be open
57: if (defined($close) && $close ne '' && $close > time) {
58: return 1;
59: }
60: # It was not explicitly open, check if the problem is available.
61: # If the problem is not available, close the discussion
62: if (defined($status) &&
63: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
64: || $status eq 'OPEN')) {
65: return 0;
66: }
67: # The problem is available, but check if the instructor explictly closed discussion
68: if (defined($close) && $close ne '' && $close < time) {
69: return 0;
70: }
71: return 1;
72: }
73:
74: sub discussion_visible {
75: my ($status)=@_;
76: if (not &discussion_open($status)) {
77: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
78: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
79: if (!$env{'request.role.adv'}) { return 0; }
80: }
81: }
82: return 1;
83: }
84:
85: sub list_discussion {
86: my ($mode,$status,$ressymb,$imsextras,$group)=@_;
87: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
88: unless ($ressymb) { return ''; }
89: $ressymb=&wrap_symb($ressymb);
90: my $outputtarget=$env{'form.grade_target'};
91: if (defined($env{'form.export'})) {
92: if($env{'form.export'}) {
93: $outputtarget = 'export';
94: }
95: }
96: if (defined($imsextras)) {
97: if ($$imsextras{'caller'} eq 'imsexport') {
98: $outputtarget = 'export';
99: }
100: }
101: if (not &discussion_visible($status)) {
102: if ($mode ne 'board') {
103: &Apache::lonenc::check_encrypt(\$ressymb);
104: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
105: }
106: }
107: if ($group ne '' && $mode eq 'board') {
108: if (&check_group_priv($group,'vgb') ne 'ok') {
109: return '';
110: }
111: }
112:
113: my ($blocked,$blocktext) =
114: &Apache::loncommon::blocking_status('boards');
115: if ($blocked) {
116: $blocktext = '<br /><div class="LC_feedback_link"><span class="LC_feedback_link">'.$blocktext."</span>";
117: &Apache::lonenc::check_encrypt(\$ressymb);
118: if ($mode ne 'board') {
119: $blocktext.=&send_message_link($ressymb).'</div>';
120: }else{
121: $blocktext.="</div>";
122: }
123: return $blocktext;
124: }
125:
126: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
127: my $discussiononly=0;
128: if ($mode eq 'board') { $discussiononly=1; }
129: unless ($env{'request.course.id'}) { return ''; }
130: my $crs='/'.$env{'request.course.id'};
131: my $cid=$env{'request.course.id'};
132: if ($env{'request.course.sec'}) {
133: $crs.='_'.$env{'request.course.sec'};
134: }
135: $crs=~s/\_/\//g;
136: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
137: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
138: && ($ressymb=~/\.(problem|exam|quiz|assess|survey|form|task)$/));
139:
140: my %usernamesort = ();
141: my %namesort =();
142: my %subjectsort = ();
143:
144: # Get discussion display settings for this discussion
145: my $lastkey = $ressymb.'_lastread';
146: my $showkey = $ressymb.'_showonlyunread';
147: my $markkey = $ressymb.'_showonlyunmark',
148: my $visitkey = $ressymb.'_visit';
149: my $ondispkey = $ressymb.'_markondisp';
150: my $userpickkey = $ressymb.'_userpick';
151: my $toggkey = $ressymb.'_readtoggle';
152: my $readkey = $ressymb.'_read';
153: $ressymb=$encsymb;
154: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
155: my %discinfo = ();
156: my $showonlyunread = 0;
157: my $showunmark = 0;
158: my $markondisp = 0;
159: my $prevread = 0;
160: my $previous = 0;
161: my $visit = 0;
162: my $newpostsflag = 0;
163: my @posters = split(/\&/,$dischash{$userpickkey});
164:
165: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
166: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
167: my $sortposts = $env{'form.sortposts'};
168: my $statusfilter = $env{'form.statusfilter'};
169: my @sectionpick = split(/,/,$env{'form.sectionpick'});
170: my @grouppick = split(/,/,$env{'form.grouppick'});
171: my @rolefilter = split(/,/,$env{'form.rolefilter'});
172:
173: my $totposters = $env{'form.totposters'};
174: $previous = $env{'form.previous'};
175: if ($previous > 0) {
176: $prevread = $previous;
177: } elsif (defined($dischash{$lastkey})) {
178: unless ($dischash{$lastkey} eq '') {
179: $prevread = $dischash{$lastkey};
180: }
181: }
182:
183: my $cdom = $env{'course.'.$cid.'.domain'};
184: my $cnum = $env{'course.'.$cid.'.num'};
185: my $crstype = &Apache::loncommon::course_type();
186:
187: # Get information about students and non-students in course for filtering display of posts
188: my %roleshash = ();
189: my %roleinfo = ();
190: my ($classgroups,$studentgroups);
191: if ($env{'form.rolefilter'}) {
192: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
193: foreach my $rolekey (keys(%roleshash)) {
194: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
195: if ($role =~ /^cr/) {
196: $role = 'cr';
197: }
198: my ($end,$start) = split(/:/,$roleshash{$rolekey});
199: my $now = time;
200: my $status = 'Active';
201: if (($now < $start) || ($end > 0 && $now > $end)) {
202: $status = 'Expired';
203: }
204: if ($uname && $udom) {
205: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
206: }
207: }
208: my ($classlist,$keylist) =
209: &Apache::loncoursedata::get_classlist($cdom,$cnum);
210: my $sec_index = &Apache::loncoursedata::CL_SECTION();
211: my $status_index = &Apache::loncoursedata::CL_STATUS();
212: while (my ($student,$data) = each %$classlist) {
213: my ($section,$status) = ($data->[$sec_index],
214: $data->[$status_index]);
215: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
216: }
217: ($classgroups,$studentgroups) =
218: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
219: $cdom,$cnum);
220: }
221:
222: # Get discussion display default settings for user
223: if ($env{'environment.discdisplay'} eq 'unread') {
224: $showonlyunread = 1;
225: }
226: if ($env{'environment.discmarkread'} eq 'ondisp') {
227: $markondisp = 1;
228: }
229:
230: # Override user's default if user specified display setting for this discussion
231: if (defined($dischash{$ondispkey})) {
232: unless ($dischash{$ondispkey} eq '') {
233: $markondisp = $dischash{$ondispkey};
234: }
235: }
236: if ($markondisp) {
237: $discinfo{$lastkey} = time;
238: }
239:
240: if (defined($dischash{$showkey})) {
241: unless ($dischash{$showkey} eq '') {
242: $showonlyunread = $dischash{$showkey};
243: }
244: }
245:
246: if (defined($dischash{$markkey})) {
247: unless ($dischash{$markkey} eq '') {
248: $showunmark = $dischash{$markkey};
249: }
250: }
251:
252: if (defined($dischash{$visitkey})) {
253: unless ($dischash{$visitkey} eq '') {
254: $visit = $dischash{$visitkey};
255: }
256: }
257: $visit ++;
258:
259: my $seeid;
260: if (($group ne '') && ($mode eq 'board') &&
261: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
262: if (&check_group_priv($group,'dgp') eq 'ok') {
263: $seeid = 1;
264: }
265: } else {
266: $seeid=&Apache::lonnet::allowed('rin',$crs);
267: }
268: my @discussionitems=();
269: my %shown = ();
270: my @posteridentity=();
271:
272: my $current=0;
273: my $visible=0;
274: my @depth=();
275: my @replies = ();
276: my %alldiscussion=();
277: my %imsitems=();
278: my %imsfiles=();
279: my %notshown = ();
280: my %newitem = ();
281: my $maxdepth=0;
282: my %anonhash=();
283: my $anoncnt=0;
284: my $target='';
285: unless ($env{'browser.interface'} eq 'textual' ||
286: $env{'environment.remote'} eq 'off' ) {
287: $target='target="LONcom"';
288: }
289:
290: my $now = time;
291: $discinfo{$visitkey} = $visit;
292:
293: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
294: &build_posting_display(\%usernamesort,\%subjectsort,\%namesort,\%notshown,\%newitem,\%dischash,\%shown,\%alldiscussion,\%imsitems,\%imsfiles,\%roleinfo,\@discussionitems,\@replies,\@depth,\@posters,\$maxdepth,\$visible,\$newpostsflag,\$current,$status,$viewgrades,$seeid,$prevread,$sortposts,$encsymb,$target,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
295:
296: my $discussion='';
297: my $manifestfile;
298: my $manifestok=0;
299: my $tempexport;
300: my $imsresources;
301: my $copyresult;
302:
303: my $function = &Apache::loncommon::get_users_function();
304: my $color = &Apache::loncommon::designparm($function.'.tabbg',
305: $env{'user.domain'});
306: my %lt = &Apache::lonlocal::texthash(
307: 'cuse' => 'Current discussion settings',
308: 'allposts' => 'All posts',
309: 'unread' => 'New posts only',
310: 'unmark' => 'Unread only',
311: 'ondisp' => 'Once displayed',
312: 'onmark' => 'Once marked not NEW',
313: 'toggoff' => 'Off',
314: 'toggon' => 'On',
315: 'disa' => 'Posts to be displayed',
316: 'npce' => 'Posts cease to be marked "NEW"',
317: 'epcb' => 'Each post can be toggled read/unread',
318: 'chgt' => 'Change',
319: 'disp' => 'Display',
320: 'nolo' => 'Not new',
321: 'togg' => 'Toggle read/unread',
322: 'aner' => 'An error occurred opening the manifest file.',
323: 'difo' => 'Discussion for',
324: 'aerr' => 'An error occurred opening the export file for posting',
325: 'aysu' => 'Are you sure you want to delete this post?',
326: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
327: 'bwco' => 'but will continue to be visible to your instructor',
328: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
329: 'discussions' => 'DISCUSSIONS'
330: );
331:
332: my $currdisp = $lt{'allposts'};
333: my $currmark = $lt{'onmark'};
334: my $currtogg = $lt{'toggoff'};
335: my $dispchange = $lt{'unread'};
336: my $markchange = $lt{'ondisp'};
337: my $toggchange = $lt{'toggon'};
338: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
339: my $displinkA = 'onlyunread';
340: my $displinkB = 'onlyunmark';
341: my $marklink = 'markondisp';
342: my $togglink = 'toggon';
343:
344: if ($markondisp) {
345: $currmark = $lt{'ondisp'};
346: $markchange = $lt{'onmark'};
347: $marklink = 'markonread';
348: }
349:
350: if ($showonlyunread) {
351: $currdisp = $lt{'unread'};
352: $dispchange = $lt{'allposts'};
353: $displinkA = 'allposts';
354: }
355:
356: if ($showunmark) {
357: $currdisp = $lt{'unmark'};
358: $dispchange = $lt{'unmark'};
359: $displinkA='allposts';
360: $displinkB='onlyunread';
361: $showonlyunread = 0;
362: }
363:
364: if ($dischash{$toggkey}) {
365: $currtogg = $lt{'toggon'};
366: $toggchange = $lt{'toggoff'};
367: $togglink = 'toggoff';
368: }
369:
370: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
371:
372: if ($newpostsflag) {
373: $chglink .= '&previous='.$prevread;
374: }
375: $chglink.=&group_args($group);
376:
377: if ($visible) {
378: # Print the discusssion
379: if ($outputtarget eq 'tex') {
380: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
381: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
382: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
383: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
384: } elsif ($outputtarget eq 'export') {
385: # Create temporary directory if this is an export
386: my $now = time;
387: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
388: $tempexport = $$imsextras{'tempexport'};
389: if (!-e $tempexport) {
390: mkdir($tempexport,0700);
391: }
392: $tempexport .= '/'.$$imsextras{'count'};
393: if (!-e $tempexport) {
394: mkdir($tempexport,0700);
395: }
396: } else {
397: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
398: if (!-e $tempexport) {
399: mkdir($tempexport,0700);
400: }
401: $tempexport .= '/'.$now;
402: if (!-e $tempexport) {
403: mkdir($tempexport,0700);
404: }
405: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
406: }
407: if (!-e $tempexport) {
408: mkdir($tempexport,0700);
409: }
410: # open manifest file
411: my $manifest = '/imsmanifest.xml';
412: my $manifestfilename = $tempexport.$manifest;
413: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
414: $manifestok=1;
415: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
416: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
417: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
418: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
419: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
420: <organizations default="$ressymb">
421: <organization identifier="$ressymb">
422: <title>$lt{'difo'} $ressymb</title>\n|;
423: } else {
424: $discussion .= $lt{'aner'}.'<br />';
425: }
426: } else {
427: my $colspan=$maxdepth+1;
428: #JW
429: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
430: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
431: var symbparm = symb+':::'+idx
432: var prevparm = ""
433: if (newflag == 1) {
434: prevparm = "&previous="+previous
435: }
436: if (caller == 'studentdelete') {
437: if (confirm("$lt{'aysu'}\\n$lt{'dpwn'},\\n$lt{'bwco'}")) {
438: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
439: }
440: } else {
441: if (caller == 'seeiddelete') {
442: if (confirm("$lt{'aysu'}\\n$lt{'depo'}")) {
443: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
444: }
445: }
446: }
447: }
448: |);
449: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
450: "\n".'<table class="LC_discussion">';
451: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
452: $newpostsflag,$group,
453: $prevread,$markondisp);
454: my $escsymb=&escape($ressymb);
455: my $numhidden = keys(%notshown);
456: if ($numhidden > 0) {
457: my $colspan = $maxdepth+1;
458: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
459: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
460: if ($newpostsflag) {
461: $discussion .= '&previous='.$prevread;
462: }
463: $discussion .= &group_args($group);
464: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
465: $numhidden.' ';
466: if ($showunmark) {
467: $discussion .= &mt('posts previously marked read');
468: } else {
469: $discussion .= &mt('previously viewed posts');
470: }
471: $discussion .= '<br/></td></tr>';
472: }
473: }
474:
475: # Choose sort mechanism
476: my @showposts = ();
477: if ($sortposts eq 'descdate') {
478: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
479: } elsif ($sortposts eq 'thread') {
480: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
481: } elsif ($sortposts eq 'subject') {
482: foreach my $key (sort(keys(%subjectsort))) {
483: push(@showposts, @{$subjectsort{$key}});
484: }
485: } elsif ($sortposts eq 'username') {
486: foreach my $domain (sort(keys(%usernamesort))) {
487: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
488: push(@showposts, @{$usernamesort{$domain}{$key}});
489: }
490: }
491: } elsif ($sortposts eq 'lastfirst') {
492: foreach my $last (sort(keys(%namesort))) {
493: foreach my $key (sort(keys(%{$namesort{$last}}))) {
494: push(@showposts, @{$namesort{$last}{$key}});
495: }
496: }
497: } else {
498: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
499: }
500: my $currdepth = 0;
501: my $firstidx = $alldiscussion{$showposts[0]};
502: foreach my $post (@showposts) {
503: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
504: $alldiscussion{$post} = $post;
505: }
506: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
507: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
508: $discussion.="\n<tr>";
509: }
510: my $thisdepth=$depth[$alldiscussion{$post}];
511: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
512: for (1..$thisdepth) {
513: $discussion.='<td> </td>';
514: }
515: }
516: my $colspan=$maxdepth-$thisdepth+1;
517: if ($outputtarget eq 'tex') {
518: #cleanup block
519: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
520: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
521: my $threadinsert='';
522: if ($thisdepth > 0) {
523: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
524: }
525: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
526: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
527:
528: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
529: $discussion.=$discussionitems[$alldiscussion{$post}];
530: } elsif ($outputtarget eq 'export') {
531: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
532: if ($manifestok) {
533: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
534: print $manifestfile ' </item>'."\n";
535: }
536: $currdepth = $depth[$alldiscussion{$post}];
537: print $manifestfile "\n".
538: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
539: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
540: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
541: $imsresources .= "\n".
542: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
543: '<file href="'.$postfilename.'">'."\n".
544: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
545: '</resource>';
546: }
547: my $postingfile;
548: my $postingfilename = $tempexport.'/'.$postfilename;
549: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
550: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
551: $imsitems{$alldiscussion{$post}}{'title'}.' '.
552: $imsitems{$alldiscussion{$post}}{'sender'}.
553: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
554: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
555: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
556: close($postingfile);
557: } else {
558: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
559: }
560: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
561: } else {
562: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
563: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
564: '</td></tr>';
565: }
566: }
567: }
568: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
569: my $colspan=$maxdepth+1;
570: $discussion .= <<END;
571: <tr bgcolor="#FFFFFF">
572: <td colspan="$colspan" class="LC_disc_action_links_bar">
573: <table class="LC_disc_action_table">
574: <tr>
575: <td align="left">
576: <table border="0" cellpadding="0" cellspacing="4">
577: <tr>
578: <td>
579: <font size="-1"><b>$lt{'cuse'}</b>:</font></td>
580: <td> </td>
581: <td><font size="-1">
582: END
583: if ($newpostsflag) {
584: $discussion .=
585: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
586: if ($dischash{$toggkey}) {
587: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
588: }
589: } else {
590: if ($dischash{$toggkey}) {
591: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
592: } else {
593: $discussion .=
594: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
595: }
596: }
597: $discussion .= <<END;
598: </font></td>
599: <td> </td>
600: <td align="left">
601: <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</b></font>
602: </td>
603: </tr>
604: </table>
605: </td>
606: END
607: if ($sortposts) {
608: my %sort_types = ();
609: my %role_types = ();
610: my %status_types = ();
611: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
612:
613: $discussion .= '<td><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
614: if (defined($env{'form.totposters'})) {
615: $discussion .= &mt('Posts by').':';
616: if ($totposters > 0) {
617: foreach my $poster (@posters) {
618: $discussion .= ' '.$poster.',';
619: }
620: $discussion =~ s/,$//;
621: } else {
622: $discussion .= &mt('None selected');
623: }
624: } else {
625: my $filterchoice ='';
626: if (@sectionpick > 0) {
627: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
628: $filterchoice .= ' ';
629: }
630: if (@grouppick > 0) {
631: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
632: $filterchoice .= ' ';
633: }
634: if (@rolefilter > 0) {
635: $filterchoice .= '<i>'.&mt('roles').'</i>-';
636: foreach my $role (@rolefilter) {
637: $filterchoice .= ' '.$role_types{$role}.',';
638: }
639: $filterchoice =~ s/,$//;
640: $filterchoice .= '<br />'.(' ' x8);
641: }
642: if ($statusfilter) {
643: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
644: }
645: if ($filterchoice) {
646: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
647: }
648: $discussion .= '</font></td>';
649: }
650: }
651: if ($dischash{$toggkey}) {
652: my $storebutton = &mt('Save read/unread changes');
653: $discussion.='<td align="right">'.
654: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
655: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
656: ' onclick="this.form.submit();" />'."\n".
657: '</td>';
658: }
659: $discussion .= (<<END);
660: </tr>
661: </table>
662: </td>
663: </tr>
664: END
665: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
666: $newpostsflag,$group,
667: $prevread,$markondisp);
668: $discussion .= "
669: </table>
670: <br /><br /></form>\n";
671: }
672: if ($outputtarget eq 'export') {
673: if ($manifestok) {
674: while ($currdepth > 0) {
675: print $manifestfile " </item>\n";
676: $currdepth --;
677: }
678: print $manifestfile qq|
679: </organization>
680: </organizations>
681: <resources>
682: $imsresources
683: </resources>
684: </manifest>
685: |;
686: close($manifestfile);
687: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
688: $discussion = $copyresult;
689: } else {
690:
691: #Create zip file in prtspool
692:
693: my $imszipfile = '/prtspool/'.
694: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
695: time.'_'.rand(1000000000).'.zip';
696: my $cwd = &getcwd();
697: my $imszip = '/home/httpd/'.$imszipfile;
698: chdir $tempexport;
699: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
700: close(OUTPUT);
701: chdir $cwd;
702: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive','<a href="'.$imszipfile.'">').'</a><br />';
703: if ($copyresult) {
704: $discussion .= &mt('The following errors occurred during export').' - <br />'.$copyresult;
705: }
706: }
707: } else {
708: $discussion .= '<br />'.&mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating a manifest file.').'<br />';
709: }
710: return $discussion;
711: }
712: }
713: if ($discussiononly) {
714: my $now = time;
715: my $attachnum = 0;
716: my $currnewattach = [];
717: my $currdelold = [];
718: my $comment = '';
719: my $subject = '';
720: if ($env{'form.origpage'}) {
721: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
722: $subject = &unescape($env{'form.subject'});
723: $comment = &unescape($env{'form.comment'});
724: my @keepold = ();
725: &process_attachments($currnewattach,$currdelold,\@keepold);
726: if (@{$currnewattach} > 0) {
727: $attachnum += @{$currnewattach};
728: }
729: }
730: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
731: if (($group ne '') && ($mode eq 'board')) {
732: if ((&check_group_priv($group,'pgd') eq 'ok') &&
733: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
734: $discussion .=
735: &postingform_display($mode,$ressymb,$now,$subject,
736: $comment,$outputtarget,$attachnum,
737: $currnewattach,$currdelold,
738: $group,$crstype);
739: }
740: } else {
741: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
742: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
743:
744: $discussion.=
745: &postingform_display($mode,$ressymb,$now,$subject,
746: $comment,$outputtarget,$attachnum,
747: $currnewattach,$currdelold,'',$crstype);
748: } else {
749: $discussion.= '<span class="LC_feedback_link">'.
750: &mt('This discussion is closed.').'</span>';
751: }
752: }
753: }
754: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
755: $discussion.= '<span class="LC_feedback_link">'.
756: &mt('This discussion is closed.').'</span>';
757: }
758: } elsif ($outputtarget ne 'tex') {
759: $discussion.='<div class="LC_feedback_link">';
760: if (&discussion_open($status) &&
761: &Apache::lonnet::allowed('pch',
762: $env{'request.course.id'}.
763: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
764: $discussion.= &send_feedback_link($ressymb,$target);
765: if ($env{'request.role.adv'}) {
766: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
767: if (defined($close) && $close ne '' && $close < time) {
768: $discussion .= ' '.&mt('(Closed for [_1] roles)',
769: &Apache::lonnet::plaintext('st',$crstype));
770: }
771: }
772: } else {
773: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
774: }
775: $discussion.= &send_message_link($ressymb).'</div>';
776: }
777: return $discussion;
778: }
779:
780: sub discussion_link {
781: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title) = @_;
782: my $link = '<a href="/adm/feedback?'.$cmd.'='.&escape($ressymb).':::'.$item;
783: if ($flag) { $link .= '&previous='.$prev; }
784: if ($adds) { $link .= $adds; }
785: $link .= '"';
786: if ($title) { $link .= ' title="'.$title.'"'; }
787: $link .= '>'.$linktext.'</a>';
788: return $link;
789: }
790:
791: sub send_feedback_link {
792: my ($ressymb,$target) = @_;
793: my $output = '<span class="LC_feedback_link">'.
794: ' <a href="/adm/feedback?replydisc='.
795: &escape($ressymb).':::" '.$target.'>'.
796: '<img alt="" class="LC_noBorder" src="'.
797: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
798: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span></a></span>';
799: return $output;
800: }
801:
802: sub send_message_link {
803: my ($ressymb) = @_;
804: my $output = '<span class="LC_message_link">'.
805: ' <a href="/adm/feedback?sendmessageonly=1&symb='.
806: &escape($ressymb).'"><img alt="" class="LC_noBorder" src="'.
807: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
808: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span></a></span>';
809: return $output;
810: }
811:
812: sub action_links_bar {
813: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp) = @_;
814: my $discussion = '<tr><td class="LC_disc_action_links_bar" colspan="'.$colspan.'">'.
815: '<table width="100%" class="LC_disc_action_table"><tr>'.
816: '<td class="LC_disc_action_left">';
817: my $escsymb=&escape($ressymb);
818: if ($visible) {
819: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
820: if ($newpostsflag) {
821: $discussion .= '&previous='.$prevread;
822: }
823: $discussion .= &group_args($group);
824: $discussion .='">'.&mt('Threaded View').'</a> '.
825: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
826: if ($newpostsflag) {
827: $discussion .= '&previous='.$prevread;
828: }
829: $discussion .= &group_args($group);
830: $discussion .='">'.&mt('Chronological View').'</a>
831: <a href="/adm/feedback?cmd=sortfilter&symb='.$escsymb;
832: if ($newpostsflag) {
833: $discussion .= '&previous='.$prevread;
834: }
835: $discussion .= &group_args($group);
836: $discussion .='">'.&mt('Sorting/Filtering options').'</a>'.(' ' x2);
837: }
838: $discussion .='<a href="/adm/feedback?export='.$escsymb;
839: if ($newpostsflag) {
840: $discussion .= '&previous='.$prevread;
841: }
842: $discussion .= &group_args($group);
843: $discussion .= '">'.&mt('Export').'?</a> </td>';
844: if ($newpostsflag) {
845: if (!$markondisp) {
846: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
847: $discussion .= &group_args($group);
848: $discussion .= '">'.
849: &mt('Preferences on what is marked as NEW').
850: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
851: $discussion .= &group_args($group);
852: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
853: } else {
854: $discussion .= '<td> </td>';
855: }
856: } else {
857: $discussion .= '<td> </td>';
858: }
859: $discussion .= '</tr></table></td></tr>';
860: return $discussion;
861: }
862:
863: sub postingform_display {
864: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
865: $currnewattach,$currdelold,$group,$crstype) = @_;
866: my $newattachmsg;
867: my %lt = &Apache::lonlocal::texthash(
868: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
869: 'title' => 'Title',
870: 'podi' => 'Post Discussion',
871: 'poan' => 'Post Anonymous Discussion',
872: 'newa' => 'New attachments',
873: );
874: if ($crstype eq 'Community') {
875: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
876: }
877: my ($postingform,$textareaclass);
878: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
879: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
880: $textareaclass = 'class="LC_richDefaultOff"';
881: if ($env{'request.course.id'}) {
882: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
883: undef($textareaclass);
884: }
885: }
886: }
887: $postingform .= (<<ENDDISCUSS);
888: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
889: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
890: <input type="hidden" name="sendit" value="true" />
891: <input type="hidden" name="timestamp" value="$now" />
892: <br /><a name="newpost"></a>
893: <font size="1">$lt{'note'}</font><br />
894: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br /><br />
895: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
896: ENDDISCUSS
897: if ($env{'form.origpage'}) {
898: $postingform .= '<input type="hidden" name="origpage" value="'.
899: $env{'form.origpage'}.'" />'."\n";
900: foreach my $att (@{$currnewattach}) {
901: $postingform .= '<input type="hidden" name="currnewattach" '.
902: 'value="'.$att.'" />'."\n";
903: }
904: }
905: if (exists($env{'form.ref'})) {
906: $postingform .= '<input type="hidden" name="ref" value="'.
907: $env{'form.ref'}.'" />';
908: }
909: if ($group ne '') {
910: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
911: }
912: my $blockblog = &Apache::loncommon::blocking_status('blogs');
913: if (!$blockblog) {
914: $postingform .= &add_blog_checkbox($crstype);
915: }
916: $postingform .= "</form>\n";
917: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
918: $now,$currnewattach,
919: $currdelold,'',$mode,
920: $blockblog);
921: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
922: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
923: if (@{$currnewattach} > 1) {
924: $newattachmsg .= '<ol>';
925: foreach my $item (@{$currnewattach}) {
926: $item =~ m#.*/([^/]+)$#;
927: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
928: }
929: $newattachmsg .= '</ol>'."\n";
930: } else {
931: $$currnewattach[0] =~ m#.*/([^/]+)$#;
932: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
933: }
934: }
935: $postingform .= $newattachmsg;
936: $postingform .= &generate_preview_button();
937: return $postingform;
938: }
939:
940: sub build_posting_display {
941: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$prevread,$sortposts,$ressymb,$target,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
942: my @original=();
943: my @index=();
944: my $skip_group_check = 0;
945: my $symb=&Apache::lonenc::check_decrypt($ressymb);
946: my $escsymb=&escape($ressymb);
947: # These are the discussion contributions
948: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
949: $env{'course.'.$env{'request.course.id'}.'.domain'},
950: $env{'course.'.$env{'request.course.id'}.'.num'});
951: # And these are the likes/unlikes
952: my %likes=&Apache::lonnet::dump('disclikes',
953: $env{'course.'.$env{'request.course.id'}.'.domain'},
954: $env{'course.'.$env{'request.course.id'}.'.num'},
955: '^'.$symb.':');
956: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
957: # Array with likes to figure out averages, etc.
958: my @theselikes=();
959: # Hashes containing likes and unlikes for this user.
960: my %userlikes=();
961: my %userunlikes=();
962: # Is the user allowed to see the real name behind anonymous postings?
963: my $see_anonymous =
964: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
965:
966: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
967: $skip_group_check = 1;
968: }
969: my (%deletions,%hiddens);
970: if ($contrib{'deleted'}) {
971: my $deleted = $contrib{'deleted'};
972: $deleted =~ s/^\.//;
973: $deleted =~ s/\.$//;
974: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
975: }
976: if ($contrib{'hidden'}) {
977: my $hidden = $contrib{'hidden'};
978: $hidden =~ s/^\.//;
979: $hidden =~ s/\.$//;
980: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
981: }
982: if ($contrib{'version'}) {
983: my $oldest = $contrib{'1:timestamp'};
984: if ($prevread eq '0') {
985: $prevread = $oldest-1;
986: }
987: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
988: if ($sortposts) {
989: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
990: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
991: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
992: }
993: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
994: for (my $id=1;$id<=$contrib{'version'};$id++) {
995: my $idx=$id;
996: next if ($contrib{$idx.':deleted'});
997: next if ($contrib{$idx.':hidden'});
998: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
999: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1000: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1001: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1002: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1003: $userlikes{$idx} = 1;
1004: }
1005: }
1006: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1007: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1008: $userunlikes{$idx} = 1;
1009: }
1010: }
1011: }
1012: }
1013: }
1014: # Figure out average likes and standard deviation if there are enough
1015: # discussions to warrant that
1016: my $ave=0;
1017: my $stddev=10000;
1018: if ($#theselikes>1) {
1019: my $sum=0;
1020: my $num=$#theselikes+1;
1021: foreach my $thislike (@theselikes) {
1022: $sum+=$thislike;
1023: }
1024: $ave=$sum/$num;
1025: my $sumsq=0;
1026: foreach my $thislike (@theselikes) {
1027: $sumsq+=($thislike-$ave)*($thislike-$ave);
1028: }
1029: $stddev=sqrt($sumsq/$num);
1030: }
1031: # Now we know the average likes $ave and the standard deviation $stddev
1032: # Get the boundaries for markup
1033: my $oneplus=$ave+$stddev;
1034: my $twoplus=$ave+2.*$stddev;
1035: my $oneminus=$ave-$stddev;
1036: my $twominus=$ave-2.*$stddev;
1037: #
1038: # This is now the real loop. Go through all entries, pick up what we need
1039: #
1040: for (my $id=1;$id<=$contrib{'version'};$id++) {
1041: my $idx=$id;
1042: next if ($contrib{$idx.':deleted'});
1043: next if ($contrib{$idx.':hidden'});
1044: my $posttime = $contrib{$idx.':timestamp'};
1045: if ($prevread <= $posttime) {
1046: $$newpostsflag = 1;
1047: }
1048: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1049: my $origindex='0.';
1050: my $numoldver=0;
1051: if ($contrib{$idx.':replyto'}) {
1052: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1053: # this is a follow-up message
1054: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1055: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1056: $origindex=$index[$contrib{$idx.':replyto'}];
1057: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1058: } else {
1059: $original[$idx]=0;
1060: $$depth[$idx]=0;
1061: }
1062: } else {
1063: # this is an original message
1064: $original[$idx]=0;
1065: $$depth[$idx]=0;
1066: }
1067: if ($$replies[$$depth[$idx]]) {
1068: $$replies[$$depth[$idx]]++;
1069: } else {
1070: $$replies[$$depth[$idx]]=1;
1071: }
1072: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx})) {
1073: $$visible++;
1074: if ($contrib{$idx.':history'}) {
1075: if ($contrib{$idx.':history'} =~ /:/) {
1076: my @oldversions = split(/:/,$contrib{$idx.':history'});
1077: $numoldver = @oldversions;
1078: } else {
1079: $numoldver = 1;
1080: }
1081: }
1082: $$current = $numoldver;
1083: my %messages = ();
1084: my %subjects = ();
1085: my %attachtxt = ();
1086: my %allattachments = ();
1087: my ($screenname,$plainname,$showaboutme);
1088: my $sender = &mt('Anonymous');
1089: # Anonymous users getting number within a discussion
1090: # Since idx is in static order, this should give the same sequence every time.
1091: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1092: unless ($$anonhash{$key}) {
1093: $anoncnt++;
1094: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1095: }
1096: my ($message,$subject,$vgrlink,$ctlink);
1097: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1098:
1099:
1100: # Set up for sorting by subject
1101: unless ($outputtarget eq 'export') {
1102: $message=$messages{$numoldver};
1103: $message.=$attachtxt{$numoldver};
1104: $subject=$subjects{$numoldver};
1105: if ($message) {
1106: if ($hiddens{$idx}) {
1107: $message='<font color="#888888">'.$message.'</font>';
1108: if ($studenthidden) {
1109: $message .='<br /><br />Deleted by poster (student).';
1110: }
1111: }
1112:
1113: if ($subject eq '') {
1114: if (defined($$subjectsort{'__No subject'})) {
1115: push(@{$$subjectsort{'__No subject'}}, $idx);
1116: } else {
1117: @{$$subjectsort{'__No subject'}} = ("$idx");
1118: }
1119: } else {
1120: if (defined($$subjectsort{$subject})) {
1121: push(@{$$subjectsort{$subject}}, $idx);
1122: } else {
1123: @{$$subjectsort{$subject}} = ("$idx");
1124: }
1125: }
1126: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1127: if ($showaboutme) {
1128: $sender = &Apache::loncommon::aboutmewrapper(
1129: $plainname,
1130: $contrib{$idx.':sendername'},
1131: $contrib{$idx.':senderdomain'});
1132: } else {
1133: $sender = $plainname;
1134: }
1135: if ($see_anonymous) {
1136: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1137: $contrib{$idx.':senderdomain'}.')';
1138: }
1139: $sender = '<b>'.$sender.'</b>';
1140: if ($contrib{$idx.':anonymous'}) {
1141: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1142: $screenname;
1143: }
1144: if ($see_anonymous) {
1145: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1146: }
1147: # Set up for sorting by domain, then username
1148: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1149: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1150: }
1151: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1152: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1153: } else {
1154: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1155: }
1156: # Set up for sorting by last name, then first name
1157: my %names = &Apache::lonnet::get('environment',
1158: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1159: ,$contrib{$idx.':sendername'});
1160: my $lastname = $names{'lastname'};
1161: my $firstname = $names{'firstname'};
1162: if ($lastname eq '') {
1163: $lastname = '_';
1164: }
1165: if ($firstname eq '') {
1166: $firstname = '_';
1167: }
1168: unless (defined($$namesort{$lastname})) {
1169: %{$$namesort{$lastname}} = ();
1170: }
1171: if (defined($$namesort{$lastname}{$firstname})) {
1172: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1173: } else {
1174: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1175: }
1176: if ($outputtarget ne 'tex') {
1177: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1178: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1179: $sender.=' <a href="/adm/feedback?editdisc='.
1180: $escsymb.':::'.$idx;
1181: if ($$newpostsflag) {
1182: $sender .= '&previous='.$prevread;
1183: }
1184: $sender .= &group_args($group);
1185: $sender .= '" '.$target.'>'.&mt('Edit').'</a>';
1186:
1187: unless ($seeid) {
1188: my $grpargs = &group_args($group);
1189: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1190: $sender .= '">'.&mt('Delete').'</a>';
1191: }
1192: }
1193: }
1194: if ($seeid) {
1195: if ($hiddens{$idx}) {
1196: unless ($studenthidden) {
1197: $sender.=' <a href="/adm/feedback?unhide='.
1198: $escsymb.':::'.$idx;
1199: if ($$newpostsflag) {
1200: $sender .= '&previous='.$prevread;
1201: }
1202: $sender .= '">'.&mt('Make Visible').'</a>';
1203: }
1204: } else {
1205: $sender.=' <a href="/adm/feedback?hide='.
1206: $escsymb.':::'.$idx;
1207: if ($$newpostsflag) {
1208: $sender .= '&previous='.$prevread;
1209: }
1210: $sender .= &group_args($group);
1211: $sender .= '">'.&mt('Hide').'</a>';
1212: }
1213: my $grpargs = &group_args($group);
1214: $sender.=
1215: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1216: $sender .= &mt('Delete').'</a>';
1217: }
1218: }
1219: } else {
1220: if ($screenname) {
1221: $sender='<i>'.$screenname.'</i>';
1222: } else {
1223: $sender='<i>'.$$anonhash{$key}.'</i>';
1224: }
1225: $sender = '<b>'.$sender.'</b>';
1226: # Set up for sorting by domain, then username for anonymous
1227: unless (defined($$usernamesort{'__anon'})) {
1228: %{$$usernamesort{'__anon'}} = ();
1229: }
1230: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1231: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1232: } else {
1233: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1234: }
1235: # Set up for sorting by last name, then first name for anonymous
1236: unless (defined($$namesort{'__anon'})) {
1237: %{$$namesort{'__anon'}} = ();
1238: }
1239: if (defined($$namesort{'__anon'}{'__anon'})) {
1240: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1241: } else {
1242: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1243: }
1244: }
1245: if ($outputtarget ne 'tex') {
1246: if (&discussion_open($status)) {
1247: if (($group ne '') &&
1248: (&check_group_priv($group,'pgd') eq 'ok')) {
1249: $sender.=' <a href="/adm/feedback?replydisc='.
1250: $escsymb.':::'.$idx;
1251: if ($$newpostsflag) {
1252: $sender .= '&previous='.$prevread;
1253: }
1254: $sender .= &group_args($group);
1255: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1256: } elsif (&Apache::lonnet::allowed('pch',
1257: $env{'request.course.id'}.
1258: ($env{'request.course.sec'}?'/'.
1259: $env{'request.course.sec'}:''))) {
1260: $sender.=' <a href="/adm/feedback?replydisc='.
1261: $escsymb.':::'.$idx;
1262: if ($$newpostsflag) {
1263: $sender .= '&previous='.$prevread;
1264: }
1265: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1266: }
1267: }
1268: if ($viewgrades) {
1269: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1270: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1271: }
1272: if ($$dischash{$readkey}=~/\.$idx\./) {
1273: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1274: } else {
1275: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1276: }
1277: }
1278: }
1279: #figure out at what position this needs to print
1280: }
1281: if ($outputtarget eq 'export' || $message) {
1282: my $thisindex=$idx;
1283: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1284: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1285: }
1286: $$alldiscussion{$thisindex}=$idx;
1287: $$shown{$idx} = 0;
1288: $index[$idx]=$thisindex;
1289: }
1290: if ($outputtarget eq 'export') {
1291: %{$$imsitems{$idx}} = ();
1292: $$imsitems{$idx}{'isvisible'}='true';
1293: if ($hiddens{$idx}) {
1294: $$imsitems{$idx}{'isvisible'}='false';
1295: }
1296: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1297: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1298: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1299: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1300: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1301: $contrib{$idx.':sendername'}.':'.
1302: $contrib{$idx.':senderdomain'}.')';
1303: $$imsitems{$idx}{'isanonymous'}='false';
1304: if ($contrib{$idx.':anonymous'}) {
1305: $$imsitems{$idx}{'isanonymous'}='true';
1306: }
1307: $$imsitems{$idx}{'currversion'}=$numoldver;
1308: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1309: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1310: $$shown{$idx} = 1;
1311: }
1312: } else {
1313: if ($message) {
1314: my $spansize = 2;
1315: if ($showonlyunread && $prevread > $posttime) {
1316: $$notshown{$idx} = 1;
1317: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1318: $$notshown{$idx} = 1;
1319: } else {
1320: # apply filters
1321: my $uname = $contrib{$idx.':sendername'};
1322: my $udom = $contrib{$idx.':senderdomain'};
1323: my $poster = $uname.':'.$udom;
1324: if ($env{'form.totposters'} ne '') {
1325: if ($totposters == 0) {
1326: $$shown{$idx} = 0;
1327: } elsif ($totposters > 0) {
1328: if (grep/^$poster$/,@{$posters}) {
1329: $$shown{$idx} = 1;
1330: }
1331: }
1332: } elsif ($sortposts) {
1333: if ($skiptest) {
1334: $$shown{$idx} = 1;
1335: } else {
1336: foreach my $role (@{$$roleinfo{$poster}}) {
1337: if ($role =~ /^cc:/) {
1338: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1339: if ($role =~ /$cc_regexp/) {
1340: $$shown{$idx} = 1;
1341: last;
1342: }
1343: } elsif ($role =~ /^$rolematch$/) {
1344: $$shown{$idx} = 1;
1345: last;
1346: }
1347: }
1348: }
1349: if ($$shown{$idx} && !$skip_group_check) {
1350: my $showflag = 0;
1351: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1352: foreach my $grp (@{$grouppick}) {
1353: if (grep/^\Q$grp\E$/,
1354: keys(%{$$classgroups{$poster}{active}})) {
1355: $showflag = 1;
1356: last;
1357: }
1358: }
1359: }
1360: if ($showflag) {
1361: $$shown{$idx} = 1;
1362: } else {
1363: $$shown{$idx} = 0;
1364: }
1365: }
1366: } else {
1367: $$shown{$idx} = 1;
1368: }
1369: }
1370: unless ($$notshown{$idx} == 1) {
1371: if ($prevread > 0 && $prevread <= $posttime) {
1372: $$newitem{$idx} = 1;
1373: $$discussionitems[$idx] .= '
1374: <table border="0" width="100%">
1375: <tr><td align="left"><font color="#FF0000"><b>'.&mt('NEW').' </b></font></td>';
1376: } else {
1377: $$newitem{$idx} = 0;
1378: $$discussionitems[$idx] .= '
1379: <table border="0" width="100%">
1380: <tr><td align="left"> </td>';
1381: }
1382: $$discussionitems[$idx] .= '<td align="left"> '.
1383: '<b>'.$subject.'</b> '.
1384: $sender.' '.$vgrlink.' ('.
1385: &Apache::lonlocal::locallocaltime($posttime).')</td>';
1386: if ($$dischash{$toggkey}) {
1387: $$discussionitems[$idx].='<td align="right"> '.
1388: $ctlink.'</td>';
1389: }
1390: # Figure out size based on likes
1391: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1392: my $likesize="100";
1393: if ($thislikes>$twoplus) {
1394: $likesize="200";
1395: } elsif ($thislikes>$oneplus) {
1396: $likesize="150";
1397: }
1398: if ($thislikes<$twominus) {
1399: $likesize="50";
1400: } elsif ($thislikes<$oneminus) {
1401: $likesize="75";
1402: }
1403: # Actually glue in the message itself
1404: $$discussionitems[$idx].= '</tr></table><blockquote>'.
1405: "<div style='font-size:$likesize%'>".
1406: $message.
1407: '</div></blockquote>';
1408: # Put in the like and unlike buttons
1409: if ($userlikes{$idx}) {
1410: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1411: } else {
1412: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1413: }
1414: if ($userunlikes{$idx}) {
1415: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1416: } else {
1417: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1418: }
1419: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1420: if ($thislikes>0) {
1421: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1422: } elsif ($thislikes<0) {
1423: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1424: }
1425: if ($contrib{$idx.':history'}) {
1426: my @postversions = ();
1427: $$discussionitems[$idx] .= &mt('This post has been edited by the author.');
1428: if ($seeid) {
1429: $$discussionitems[$idx] .= ' <a href="/adm/feedback?allversions='.$escsymb.':::'.$idx;
1430: $$discussionitems[$idx] .= &group_args($group);
1431: $$discussionitems[$idx] .= '">'.&mt('Display all versions').'</a>';
1432: }
1433: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1434: if ($contrib{$idx.':history'} =~ m/:/) {
1435: @postversions = split(/:/,$contrib{$idx.':history'});
1436: } else {
1437: @postversions = ("$contrib{$idx.':history'}");
1438: }
1439: for (my $i=0; $i<@postversions; $i++) {
1440: my $version = $i+1;
1441: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1442: }
1443: }
1444: }
1445: }
1446: }
1447: }
1448: }
1449: }
1450: }
1451:
1452: sub filter_regexp {
1453: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1454: my ($roleregexp,$secregexp,$statusregexp);
1455: my $skiptest = 1;
1456: if (@{$rolefilter} > 0) {
1457: my @okrolefilter = ();
1458: foreach my $role (@{$rolefilter}) {
1459: unless ($role eq '') {
1460: push(@okrolefilter, $role);
1461: }
1462: }
1463: if (@okrolefilter > 0) {
1464: if (grep/^all$/,@okrolefilter) {
1465: $roleregexp='[^:]+';
1466: } else {
1467: if (@okrolefilter == 1) {
1468: $roleregexp=$okrolefilter[0];
1469: } else {
1470: $roleregexp='('.join('|',@okrolefilter).')';
1471: }
1472: $skiptest = 0;
1473: }
1474: }
1475: }
1476: if (@{$sectionpick} > 0) {
1477: my @oksectionpick = ();
1478: foreach my $sec (@{$sectionpick}) {
1479: unless ($sec eq '') {
1480: push(@oksectionpick, $sec);
1481: }
1482: }
1483: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1484: if (@oksectionpick == 1) {
1485: $secregexp = $oksectionpick[0];
1486: } else {
1487: $secregexp .= '('.join('|',@oksectionpick).')';
1488: }
1489: $skiptest = 0;
1490: } else {
1491: $secregexp .= '[^:]*';
1492: }
1493: }
1494:
1495: if (defined($statusfilter) && $statusfilter ne '') {
1496: if ($statusfilter eq 'all') {
1497: $statusregexp = '[^:]+';
1498: } else {
1499: $statusregexp = $statusfilter;
1500: $skiptest = 0;
1501: }
1502: }
1503: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1504: }
1505:
1506:
1507: sub get_post_contents {
1508: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1509: my $discussion = '';
1510: my $start=$numver;
1511: my $end=$numver + 1;
1512: %{$$imsfiles{$idx}}=();
1513: if ($type eq 'allversions') {
1514: unless($seeid) {
1515: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1516: return $discussion;
1517: }
1518: }
1519: # $$screenname=&Apache::loncommon::screenname(
1520: # $$contrib{$idx.':sendername'},
1521: # $$contrib{$idx.':senderdomain'});
1522: $$plainname=&Apache::loncommon::nickname(
1523: $$contrib{$idx.':sendername'},
1524: $$contrib{$idx.':senderdomain'});
1525: $$screenname=$$contrib{$idx.':screenname'};
1526: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1527: $$contrib{$idx.':senderdomain'},
1528: 'aboutme');
1529: my $sender = $$plainname;
1530: if ($$showaboutme) {
1531: $sender = &Apache::loncommon::aboutmewrapper(
1532: $$plainname,
1533: $$contrib{$idx.':sendername'},
1534: $$contrib{$idx.':senderdomain'});
1535: }
1536: if ($seeid) {
1537: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1538: $$contrib{$idx.':senderdomain'}.')';
1539: }
1540: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1541: my @postversions = ();
1542: if ($type eq 'allversions' || $type eq 'export') {
1543: $start = 0;
1544: if ($$contrib{$idx.':history'}) {
1545: @postversions = split(/:/,$$contrib{$idx.':history'});
1546: }
1547: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1548: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1549: push(@postversions,$$contrib{$idx.':timestamp'});
1550: $end = @postversions;
1551: } else {
1552: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1553: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1554: }
1555:
1556: if ($$contrib{$idx.':anonymous'}) {
1557: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1558: }
1559: if ($type eq 'allversions') {
1560: $discussion=('<b>'.$sender.'</b><br /><ul>');
1561: }
1562: for (my $i=$start; $i<$end; $i++) {
1563: my ($timesent,$attachmsg);
1564: my %currattach = ();
1565: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1566: unless (&contains_block_html($messages->{$i})) {
1567: &newline_to_br(\$messages->{$i});
1568: }
1569: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1570: $$subjects{$i}=~s/\n/\<br \/\>/g;
1571: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1572: if ($attachmenturls) {
1573: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1574: }
1575: if ($type eq 'export') {
1576: $$imsfiles{$idx}{$i} = '';
1577: if ($attachmsg) {
1578: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1579: foreach my $key (sort(keys(%currattach))) {
1580: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1581: my $fname = $1.$3.'/'.$4;
1582: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1583: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1584: }
1585: }
1586: }
1587: } else {
1588: if ($attachmsg) {
1589: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1590: } else {
1591: $$attachtxt{$i} = '';
1592: }
1593: }
1594: if ($type eq 'allversions') {
1595: $discussion.= <<"END";
1596: <li><b>$$subjects{$i}</b>, $timesent<br />
1597: $$messages{$i}<br />
1598: $$attachtxt{$i}</li>
1599: END
1600: }
1601: }
1602: if ($type eq 'allversions') {
1603: $discussion.='</ul>';
1604: return $discussion;
1605: } else {
1606: return;
1607: }
1608: }
1609:
1610: sub replicate_attachments {
1611: my ($attachrefs,$tempexport) = @_;
1612: my $response;
1613: foreach my $id (keys(%{$attachrefs})) {
1614: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1615: my $path = $tempexport;
1616: my $tail = $1.'/'.$2.$4;
1617: my @extras = split(/\//,$tail);
1618: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1619: if (!-e $destination) {
1620: my $i= 0;
1621: while ($i<@extras) {
1622: $path .= '/'.$extras[$i];
1623: if (!-e $path) {
1624: mkdir($path,0700);
1625: }
1626: $i ++;
1627: }
1628: my ($content,$rtncode);
1629: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1630: if ($uploadreply eq 'ok') {
1631: my $attachcopy;
1632: if ($attachcopy = Apache::File->new('>'.$destination)) {
1633: print $attachcopy $content;
1634: close($attachcopy);
1635: } else {
1636: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1637: }
1638: } else {
1639: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1640: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1641: }
1642: }
1643: }
1644: }
1645: return $response;
1646: }
1647:
1648: sub mail_screen {
1649: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1650: if (exists($env{'form.origpage'})) {
1651: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1652: }
1653:
1654: my %lt = &Apache::lonlocal::texthash(
1655: 'myqu' => 'My question/comment/feedback:',
1656: 'title' => 'Title',
1657: 'reta' => 'Retained attachments',
1658: 'atta' => 'Attachment',
1659: );
1660: my $restitle = &get_resource_title($caller_symb,$feedurl);
1661: my $quote='';
1662: my $subject = '';
1663: my $comment = '';
1664: my $prevtag = '';
1665: my $parentmsg = '';
1666: my ($symb,$idx,$attachmenturls);
1667: my $numoldver = 0;
1668: my $attachmsg = '';
1669: my $newattachmsg = '';
1670: my @currnewattach = ();
1671: my @currdelold = ();
1672: my @keepold = ();
1673: my %attachments = ();
1674: my %currattach = ();
1675: my $attachnum = 0;
1676: my $anonchk = (<<END);
1677: function anonchk() {
1678: for (var i=0; i < document.mailform.discuss.length; i++) {
1679: if (document.mailform.discuss[i].checked) {
1680: document.attachment.discuss.value =
1681: document.mailform.discuss[i].value;
1682: }
1683: }
1684: if (document.mailform.blog.checked) {
1685: document.attachment.blog.value = 1;
1686: }
1687: return
1688: }
1689: END
1690: my $anonscript;
1691: if (exists($env{'form.origpage'})) {
1692: $anonscript = (<<END);
1693: function setposttype() {
1694: var disc = "$env{'form.discuss'}";
1695: for (var i=0; i < document.mailform.discuss.length; i++) {
1696: if (disc == document.mailform.discuss[i].value) {
1697: document.mailform.discuss[i].checked = 1;
1698: }
1699: }
1700: var blog = "$env{'form.blog'}";
1701: if (blog == 1) {
1702: document.mailform.blog.checked=1;
1703: }
1704: return
1705: }
1706: END
1707: } else {
1708: $anonscript = (<<END);
1709: function setposttype() {
1710: return
1711: }
1712: END
1713: }
1714: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1715: if ($env{'form.replydisc'}) {
1716: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1717: } else {
1718: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1719: }
1720: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1721: $env{'course.'.$env{'request.course.id'}.'.domain'},
1722: $env{'course.'.$env{'request.course.id'}.'.num'});
1723: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1724: if ($contrib{$idx.':history'}) {
1725: if ($contrib{$idx.':history'} =~ /:/) {
1726: my @oldversions = split(/:/,$contrib{$idx.':history'});
1727: $numoldver = @oldversions;
1728: } else {
1729: $numoldver = 1;
1730: }
1731: }
1732: if ($env{'form.replydisc'}) {
1733: if ($contrib{$idx.':history'}) {
1734: if ($contrib{$idx.':history'} =~ /:/) {
1735: my @oldversions = split(/:/,$contrib{$idx.':history'});
1736: $numoldver = @oldversions;
1737: } else {
1738: $numoldver = 1;
1739: }
1740: }
1741: if ($idx > 0) {
1742: my %msgversions = ();
1743: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1744: $quote = $msgversions{$numoldver};
1745: }
1746: if ($idx > 0) {
1747: my %subversions = ();
1748: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1749: $subject = &mt('Re: ').$subversions{$numoldver};
1750: }
1751: $subject = &HTML::Entities::encode($subject,'<>&"');
1752: } else {
1753: $attachmenturls = $contrib{$idx.':attachmenturl'};
1754: if ($idx > 0) {
1755: my %msgversions = ();
1756: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1757: $comment = $msgversions{$numoldver};
1758: my %subversions = ();
1759: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1760: $subject = $subversions{$numoldver};
1761: }
1762: if (defined($contrib{$idx.':replyto'})) {
1763: $parentmsg = $contrib{$idx.':replyto'};
1764: }
1765: unless (exists($env{'form.origpage'})) {
1766: my $anonflag = 'nonanon';
1767: if ($contrib{$idx.':anonymous'}) {
1768: $anonflag = 'anon';
1769: }
1770: $anonscript = (<<END);
1771: function setposttype () {
1772: var currtype = "$anonflag";
1773: for (var i=0; i<document.mailform.discuss.length; i++) {
1774: if (document.mailform.elements.discuss[i].value == currtype ) {
1775: document.mailform.elements.discuss[i].checked=1;
1776: }
1777: }
1778: return
1779: }
1780: END
1781: }
1782: }
1783: }
1784: if ($env{'form.previous'}) {
1785: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1786: }
1787: }
1788:
1789: if ($env{'form.origpage'}) {
1790: $subject = &unescape($env{'form.subject'});
1791: $comment = &unescape($env{'form.comment'});
1792: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1793: }
1794: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1);
1795: my $send=&mt('Send');
1796: my $alert = &mt('Please select a feedback type.');
1797: my $js= <<END;
1798: <script type="text/javascript">
1799: //<!--
1800: function gosubmit() {
1801: var rec=0;
1802: if (typeof(document.mailform.elements.discuss)!="undefined") {
1803: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1804: if (document.mailform.elements.discuss.checked ) {
1805: rec=1;
1806: }
1807: } else {
1808: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1809: if (document.mailform.elements.discuss[i].checked ) {
1810: rec=1;
1811: }
1812: }
1813: }
1814: }
1815: if (typeof(document.mailform.elements.blog)!="undefined") {
1816: if (document.mailform.elements.blog.checked) {
1817: rec=1;
1818: }
1819: }
1820:
1821: if (rec) {
1822: if (typeof(document.mailform.onsubmit)=='function') {
1823: document.mailform.onsubmit();
1824: }
1825: document.mailform.submit();
1826: } else {
1827: alert('$alert');
1828: }
1829: }
1830: $anonchk
1831: $anonscript
1832: //-->
1833: </script>
1834: END
1835:
1836: my ($textareaheader,$textareaclass);
1837: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1838: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1839: $textareaclass = 'class="LC_richDefaultOff"';
1840: if ($env{'request.course.id'}) {
1841: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1842: undef($textareaclass);
1843: }
1844: }
1845: }
1846:
1847: # Breadcrumbs
1848: my $brcrum = [{'href' => '',
1849: 'text' => 'Resource Feedback and Discussion'}];
1850:
1851: my %onload = ('onload' => 'window.focus();setposttype();');
1852: my $start_page=
1853: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,
1854: {'add_entries' => \%onload,
1855: 'bread_crumbs' => $brcrum,});
1856:
1857: if ($quote ne '') {
1858: $quote = &HTML::Entities::decode($quote);
1859: unless (&contains_block_html($quote)) {
1860: &newline_to_br(\$quote);
1861: }
1862: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($quote).'</blockquote>';
1863: }
1864:
1865: $r->print(<<END);
1866: $start_page
1867: <h2><tt>$restitle</tt></h2>
1868: <form action="/adm/feedback" method="post" name="mailform"
1869: enctype="multipart/form-data">
1870: $prevtag
1871: <input type="hidden" name="postdata" value="$feedurl" />
1872: END
1873: if ($env{'form.replydisc'}) {
1874: $r->print(<<END);
1875: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1876: END
1877: } elsif ($env{'form.editdisc'}) {
1878: $r->print(<<END);
1879: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1880: <input type="hidden" name="parentmsg" value="$parentmsg" />
1881: END
1882: }
1883: $r->print(<<END);
1884: $options<hr />
1885: $quote
1886: <p>$lt{'myqu'}
1887: $textareaheader
1888: </p>
1889: <p>
1890: $latexHelp
1891: </p>
1892: <p>
1893: $lt{'title'}: <input type="text" name="subject" size="30" value="$subject" /></p>
1894: <p>
1895: <textarea name="comment" id="comment" cols="60" rows="10" $textareaclass>$comment
1896: </textarea></p>
1897: END
1898: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1899: if ($env{'form.origpage'}) {
1900: foreach my $attach (@currnewattach) {
1901: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
1902: }
1903: foreach my $oldatt (@currdelold) {
1904: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
1905: }
1906: }
1907: if ($env{'form.editdisc'}) {
1908: if ($attachmenturls) {
1909: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1910: $attachnum = scalar(keys(%currattach));
1911: foreach my $key (keys(%currattach)) {
1912: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
1913: }
1914: }
1915: }
1916: } else {
1917: $r->print(<<END);
1918: <p>
1919: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
1920: </p>
1921: END
1922: }
1923: if (exists($env{'form.group'})) {
1924: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
1925: }
1926: if (exists($env{'form.ref'})) {
1927: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
1928: }
1929: $r->print(<<END);
1930: <p>
1931: <input type="hidden" name="sendit" value="1" />
1932: <input type="button" value="$send" onclick='gosubmit();' />
1933: </p>
1934: </form>
1935: END
1936: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
1937: my $now = time;
1938: my $ressymb = $symb;
1939: &Apache::lonenc::check_encrypt(\$ressymb);
1940: my $postidx = '';
1941: if ($env{'form.editdisc'}) {
1942: $postidx = $idx;
1943: }
1944: if (@currnewattach > 0) {
1945: $attachnum += @currnewattach;
1946: }
1947: my $blockblog = &Apache::loncommon::blocking_status('blogs');
1948: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
1949: if ($attachnum > 0) {
1950: if (@currnewattach > 0) {
1951: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
1952: if (@currnewattach > 1) {
1953: $newattachmsg .= '<ol>';
1954: foreach my $item (@currnewattach) {
1955: $item =~ m#.*/([^/]+)$#;
1956: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1957: }
1958: $newattachmsg .= '</ol>'."\n";
1959: } else {
1960: $currnewattach[0] =~ m#.*/([^/]+)$#;
1961: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
1962: }
1963: }
1964: if ($attachmsg) {
1965: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
1966: }
1967: if ($newattachmsg) {
1968: $r->print("$newattachmsg<br />");
1969: }
1970: }
1971: }
1972: $r->print(&generate_preview_button().
1973: &Apache::loncommon::end_page());
1974:
1975: }
1976:
1977: sub print_display_options {
1978: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
1979: &Apache::loncommon::content_type($r,'text/html');
1980: $r->send_http_header;
1981:
1982: my $function = &Apache::loncommon::get_users_function();
1983: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1984: $env{'user.domain'});
1985:
1986: my %lt = &Apache::lonlocal::texthash(
1987: 'pref' => 'Display Preference',
1988: 'curr' => 'Current setting ',
1989: 'actn' => 'Action',
1990: 'deff' => 'Default for all discussions',
1991: 'prca' => 'Preferences can be set for this discussion that determine ....',
1992: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
1993: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
1994: 'wipa' => 'Whether individual posts can be marked as read/unread',
1995: 'allposts' => 'All posts',
1996: 'unread' => 'New posts only',
1997: 'unmark' => 'Posts not marked read',
1998: 'ondisp' => 'Once displayed',
1999: 'onmark' => 'Once marked not NEW',
2000: 'toggon' => 'Shown',
2001: 'toggoff' => 'Not shown',
2002: 'disa' => 'Posts displayed?',
2003: 'npmr' => 'New posts cease to be identified as "NEW"?',
2004: 'dotm' => 'Option to mark each post as read/unread?',
2005: 'chgt' => 'Change to ',
2006: 'mkdf' => 'Set to ',
2007: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2008: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2009: );
2010:
2011: my $dispchangeA = $lt{'unread'};
2012: my $dispchangeB = $lt{'unmark'};
2013: my $markchange = $lt{'ondisp'};
2014: my $toggchange = $lt{'toggon'};
2015: my $currdisp = $lt{'allposts'};
2016: my $currmark = $lt{'onmark'};
2017: my $discdisp = 'allposts';
2018: my $discmark = 'onmark';
2019: my $currtogg = $lt{'toggoff'};
2020: my $disctogg = 'toggoff';
2021:
2022: if ($dispchgA eq 'allposts') {
2023: $dispchangeA = $lt{'allposts'};
2024: $currdisp = $lt{'unread'};
2025: $discdisp = 'unread';
2026: }
2027:
2028: if ($markchg eq 'markonread') {
2029: $markchange = $lt{'onmark'};
2030: $currmark = $lt{'ondisp'};
2031: $discmark = 'ondisp';
2032: }
2033:
2034: if ($dispchgB eq 'onlyunread') {
2035: $dispchangeB = $lt{'unread'};
2036: $currdisp = $lt{'unmark'};
2037: $discdisp = 'unmark';
2038: }
2039: if ($toggchg eq 'toggoff') {
2040: $toggchange = $lt{'toggoff'};
2041: $currtogg = $lt{'toggon'};
2042: $disctogg = 'toggon';
2043: }
2044:
2045: my $js = <<END;
2046: <script type="text/javascript">
2047: function discdispChk(caller) {
2048: var disctogg = '$toggchg'
2049: if (caller == 0) {
2050: if (document.modifydisp.discdisp[0].checked == true) {
2051: if (document.modifydisp.discdisp[1].checked == true) {
2052: document.modifydisp.discdisp[1].checked = false
2053: }
2054: }
2055: }
2056: if (caller == 1) {
2057: if (document.modifydisp.discdisp[1].checked == true) {
2058: if (document.modifydisp.discdisp[0].checked == true) {
2059: document.modifydisp.discdisp[0].checked = false
2060: }
2061: if (disctogg == 'toggon') {
2062: document.modifydisp.disctogg.checked = true
2063: }
2064: if (disctogg == 'toggoff') {
2065: document.modifydisp.disctogg.checked = false
2066: }
2067: }
2068: }
2069: if (caller == 2) {
2070: var dispchgB = '$dispchgB'
2071: if (disctogg == 'toggoff') {
2072: if (document.modifydisp.disctogg.checked == true) {
2073: if (dispchgB == 'onlyunmark') {
2074: document.modifydisp.discdisp[1].checked = false
2075: }
2076: }
2077: }
2078: }
2079: }
2080:
2081: function setDisp() {
2082: var prev = "$previous"
2083: var chktotal = 0
2084: if (document.modifydisp.discdisp[0].checked == true) {
2085: document.modifydisp.$dispchgA.value = "$symb"
2086: chktotal ++
2087: }
2088: if (document.modifydisp.discdisp[1].checked == true) {
2089: document.modifydisp.$dispchgB.value = "$symb"
2090: chktotal ++
2091: }
2092: if (document.modifydisp.discmark.checked == true) {
2093: document.modifydisp.$markchg.value = "$symb"
2094: chktotal ++
2095: }
2096: if (document.modifydisp.disctogg.checked == true) {
2097: document.modifydisp.$toggchg.value = "$symb"
2098: chktotal ++
2099: }
2100: if (chktotal > 0) {
2101: document.modifydisp.submit()
2102: } else {
2103: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2104: if (prev > 0) {
2105: location.href = "$feedurl?previous=$previous"
2106: } else {
2107: location.href = "$feedurl"
2108: }
2109: }
2110: }
2111: }
2112: </script>
2113: END
2114:
2115:
2116: my $start_page =
2117: &Apache::loncommon::start_page('Discussion display options',$js);
2118: my $end_page =
2119: &Apache::loncommon::end_page();
2120: $r->print(<<END);
2121: $start_page
2122: <form name="modifydisp" method="post" action="/adm/feedback">
2123: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2124: <br />
2125: END
2126: $r->print(&Apache::loncommon::start_data_table());
2127: $r->print(<<END);
2128: <tr>
2129: <th>$lt{'pref'}</td>
2130: <th>$lt{'curr'}</td>
2131: <th>$lt{'actn'}?</td>
2132: </tr>
2133: END
2134: $r->print(&Apache::loncommon::start_data_table_row());
2135: $r->print(<<END);
2136: <td>$lt{'disa'}</td>
2137: <td>$lt{$discdisp}</td>
2138: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2139: <br />
2140: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2141: </td>
2142: END
2143: $r->print(&Apache::loncommon::end_data_table_row());
2144: $r->print(&Apache::loncommon::start_data_table_row());
2145: $r->print(<<END);
2146: <td>$lt{'npmr'}</td>
2147: <td>$lt{$discmark}</td>
2148: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2149: END
2150: $r->print(&Apache::loncommon::end_data_table_row());
2151: $r->print(&Apache::loncommon::start_data_table_row());
2152: $r->print(<<END);
2153: <td>$lt{'dotm'}</td>
2154: <td>$lt{$disctogg}</td>
2155: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2156: END
2157: my $save = &mt('Save');
2158: $r->print(&Apache::loncommon::end_data_table_row());
2159: $r->print(&Apache::loncommon::end_data_table());
2160: $r->print(<<END);
2161: <br />
2162: <br />
2163: <input type="hidden" name="symb" value="$symb" />
2164: <input type="hidden" name="previous" value="$previous" />
2165: <input type="hidden" name="$dispchgA" value="" />
2166: <input type="hidden" name="$dispchgB" value="" />
2167: <input type="hidden" name="$markchg" value="" />
2168: <input type="hidden" name="$toggchg" value="" />
2169: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2170: END
2171: if (exists($env{'form.group'})) {
2172: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2173: }
2174: if (exists($env{'form.ref'})) {
2175: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2176: }
2177: $r->print("
2178: <br />
2179: <br />
2180: </form>
2181: $end_page
2182: ");
2183: return;
2184: }
2185:
2186: sub print_sortfilter_options {
2187: my ($r,$symb,$previous,$feedurl) = @_;
2188:
2189: &Apache::loncommon::content_type($r,'text/html');
2190: $r->send_http_header;
2191:
2192: &Apache::lonenc::check_encrypt(\$symb);
2193: my @sections;
2194: my $section_sel = '';
2195: my $numvisible = 5;
2196: my @groups;
2197: my $group_sel = '';
2198: my $numgroupvis = 5;
2199: my %sectioncount = &Apache::loncommon::get_sections();
2200: my @courseroles = qw(st ad ep ta in);
2201: my $crstype = &Apache::loncommon::course_type();
2202: my $ccrole = 'cc';
2203: if ($crstype eq 'Community') {
2204: $ccrole = 'co';
2205: }
2206: push(@courseroles,$ccrole);
2207:
2208: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2209: @sections = ('all',$env{'request.course.sec'});
2210: $numvisible = 2;
2211: } else {
2212: @sections = sort {$a cmp $b} keys(%sectioncount);
2213: if (scalar(@sections) < 4) {
2214: $numvisible = scalar(@sections) + 1;
2215: }
2216: unshift(@sections,'all'); # Put 'all' at the front of the list
2217:
2218: }
2219: foreach my $sec (@sections) {
2220: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2221: }
2222:
2223: if (&check_group_priv() eq 'ok') {
2224: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2225: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2226: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2227: @groups = sort {$a cmp $b} keys(%curr_groups);
2228: if (scalar(@groups) < 4) {
2229: $numgroupvis = scalar(@groups) + 1;
2230: }
2231: unshift(@groups,'all'); # Put 'all' at the front of the list
2232: } else {
2233: my @coursegroups = split(/:/,$env{'request.course.groups'});
2234: if (@coursegroups > 0) {
2235: @coursegroups = sort {$a cmp $b} @coursegroups;
2236: @groups = ('all',@coursegroups);
2237: if (scalar(@groups) < 4) {
2238: $numgroupvis = scalar(@groups) + 1;
2239: }
2240: } else {
2241: @groups = ('all');
2242: $numgroupvis = 1;
2243: }
2244: }
2245: foreach my $group (@groups) {
2246: $group_sel .= " <option value=\"$group\">$group</option>\n";
2247: }
2248:
2249: my $function = &Apache::loncommon::get_users_function();
2250: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2251: $env{'user.domain'});
2252: my %lt = &Apache::lonlocal::texthash(
2253: 'diop' => 'Display Options',
2254: 'curr' => 'Current setting ',
2255: 'actn' => 'Action',
2256: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2257: 'soor' => 'Sort order',
2258: 'spur' => 'Specific user roles',
2259: 'sprs' => 'Specific role status',
2260: 'spse' => 'Specific sections',
2261: 'spgr' => 'Specific groups',
2262: 'psub' => 'Pick specific users (by name)',
2263: 'shal' => 'Show a list of current posters',
2264: 'stor' => 'Save changes',
2265: );
2266:
2267: my %sort_types = ();
2268: my %role_types = ();
2269: my %status_types = ();
2270: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2271:
2272: my $js = <<END;
2273: <script type="text/javascript">
2274: function verifyFilter() {
2275: var rolenum = 0
2276: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2277: if (document.modifyshown.rolefilter.options[i].selected == true) {
2278: rolenum ++
2279: }
2280: }
2281: if (rolenum == 0) {
2282: document.modifyshown.rolefilter.options[0].selected = true
2283: }
2284:
2285: var secnum = 0
2286: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2287: if (document.modifyshown.sectionpick.options[i].selected == true) {
2288: secnum ++
2289: }
2290: }
2291: if (secnum == 0) {
2292: document.modifyshown.sectionpick.options[0].selected = true
2293: }
2294:
2295: var grpnum = 0
2296: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2297: if (document.modifyshown.grouppick.options[i].selected == true) {
2298: grpnum ++
2299: }
2300: }
2301: if (grpnum == 0) {
2302: document.modifyshown.grouppick.options[0].selected = true
2303: }
2304:
2305: document.modifyshown.submit();
2306: }
2307: </script>
2308: END
2309:
2310: my $start_page=
2311: &Apache::loncommon::start_page('Discussion options',$js);
2312: my $end_page=
2313: &Apache::loncommon::end_page();
2314:
2315: $r->print(<<END);
2316: $start_page
2317: <form name="modifyshown" method="post" action="/adm/feedback">
2318: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2319: <br /><br />
2320: <table border="0">
2321: <tr>
2322: <th>$lt{'soor'}</th>
2323: <th> </th>
2324: <th>$lt{'sprs'}</th>
2325: <th> </th>
2326: <th>$lt{'spur'}</th>
2327: <th> </th>
2328: <th>$lt{'spse'}</th>
2329: <th> </th>
2330: <th>$lt{'spgr'}</th>
2331: <th> </th>
2332: <th>$lt{'psub'}</th>
2333: </tr>
2334: <tr>
2335: <td align="center" valign="top">
2336: <select name="sortposts">
2337: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2338: <option value="descdate">$sort_types{'descdate'}</option>
2339: <option value="thread">$sort_types{'thread'}</option>
2340: <option value="subject">$sort_types{'subject'}</option>
2341: <option value="username">$sort_types{'username'}</option>
2342: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2343: </select>
2344: </td>
2345: <td> </td>
2346: <td align="center" valign="top">
2347: <select name="statusfilter">
2348: <option value="all" selected="selected">$status_types{'all'}</option>
2349: <option value="Active">$status_types{'Active'}</option>
2350: <option value="Expired">$status_types{'Expired'}</option>
2351: <option value="Future">$status_types{'Future'}</option>
2352: </select>
2353: </td>
2354: <td> </td>
2355: <td align="center" valign="top">
2356: <select name="rolefilter" multiple="multiple" size="5">
2357: <option value="all">$role_types{'all'}</option>
2358: <option value="st">$role_types{'st'}</option>
2359: <option value="$ccrole">$role_types{$ccrole}</option>
2360: <option value="in">$role_types{'in'}</option>
2361: <option value="ta">$role_types{'ta'}</option>
2362: <option value="ep">$role_types{'ep'}</option>
2363: <option value="ad">$role_types{'ad'}</option>
2364: <option value="cr">$role_types{'cr'}</option>
2365: </select>
2366: </td>
2367: <td> </td>
2368: <td align="center" valign="top">
2369: <select name="sectionpick" multiple="multiple" size="$numvisible">
2370: $section_sel
2371: </select>
2372: </td>
2373: <td> </td>
2374: <td align="center" valign="top">
2375: <select name="grouppick" multiple="multiple" size="$numvisible">
2376: $group_sel
2377: </select>
2378: </td>
2379: <td> </td>
2380: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2381: </tr>
2382: </table>
2383: <br />
2384: <br />
2385: <input type="hidden" name="previous" value="$previous" />
2386: <input type="hidden" name="applysort" value="$symb" />
2387: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2388: END
2389: if (exists($env{'form.group'})) {
2390: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2391: }
2392: if (exists($env{'form.ref'})) {
2393: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2394: }
2395: $r->print("
2396: <br />
2397: <br />
2398: </form>
2399: $end_page
2400: ");
2401: }
2402:
2403: sub print_showposters {
2404: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2405:
2406: &Apache::loncommon::content_type($r,'text/html');
2407: $r->send_http_header;
2408:
2409: &Apache::lonenc::check_encrypt(\$symb);
2410: my $crs='/'.$env{'request.course.id'};
2411: if ($env{'request.course.sec'}) {
2412: $crs.='_'.$env{'request.course.sec'};
2413: }
2414: $crs=~s/\_/\//g;
2415: my $seeid;
2416: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2417: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2418: my $group = $env{'form.group'};
2419: my $ressymb = &wrap_symb($symb);
2420: if (($group ne '') &&
2421: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
2422: if (&check_group_priv($group,'dgp') eq 'ok') {
2423: $seeid = 1;
2424: }
2425: } else {
2426: $seeid=&Apache::lonnet::allowed('rin',$crs);
2427: }
2428: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2429: $cdom,$cnum);
2430: my %namesort = ();
2431: my %postcounts = ();
2432:
2433: my %lt = &Apache::lonlocal::texthash(
2434: sele => 'Select',
2435: full => 'Fullname',
2436: usdo => 'Username:domain',
2437: post => 'Posts',
2438: );
2439: if ($contrib{'version'}) {
2440: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2441: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2442: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2443: unless ((($hidden) && (!$seeid)) || ($deleted)) {
2444: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2445: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2446: my $lastname = $names{'lastname'};
2447: my $firstname = $names{'firstname'};
2448: if ($lastname eq '') {
2449: $lastname = '_';
2450: }
2451: if ($firstname eq '') {
2452: $firstname = '_';
2453: }
2454: unless (defined($namesort{$lastname})) {
2455: %{$namesort{$lastname}} = ();
2456: }
2457: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2458: $postcounts{$poster} ++;
2459: if (defined($namesort{$lastname}{$firstname})) {
2460: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2461: push(@{$namesort{$lastname}{$firstname}}, $poster);
2462: }
2463: } else {
2464: @{$namesort{$lastname}{$firstname}} = ("$poster");
2465: }
2466: }
2467: }
2468: }
2469: }
2470:
2471: my $start_page = &Apache::loncommon::start_page('Discussion options');
2472: my $table_start =&Apache::loncommon::start_data_table();
2473: $r->print(<<END);
2474: $start_page
2475: <form name="pickpostersform" method="post">
2476: <br />
2477: $table_start
2478: <tr>
2479: <th>#</th>
2480: <th>$lt{'sele'}</th>
2481: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2482: <th>$lt{'post'}</th>
2483: </tr>
2484: END
2485: my $count = 0;
2486: foreach my $last (sort(keys(%namesort))) {
2487: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2488: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2489: my ($uname,$udom) = split(/:/,$user);
2490: if (!$uname || !$udom) {
2491: next;
2492: } else {
2493: $count ++;
2494: $r->print(&Apache::loncommon::start_data_table_row().
2495: '<td align="right">'.$count.'</td>
2496: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2497: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2498: <td>'.$postcounts{$user}.'</td>'.
2499: &Apache::loncommon::end_data_table_row());
2500: }
2501: }
2502: }
2503: }
2504: $r->print(&Apache::loncommon::end_data_table());
2505: my $end_page = &Apache::loncommon::end_page();
2506: $r->print(<<END);
2507: <br />
2508: <input type="hidden" name="sortposts" value="$sortposts" />
2509: <input type="hidden" name="userpick" value="$symb" />
2510: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2511: </form>
2512: $end_page
2513: END
2514: }
2515:
2516: sub get_post_versions {
2517: my ($versions,$incoming,$htmldecode,$numver) = @_;
2518: if ($incoming =~ /^<version num="0">/) {
2519: my $p = HTML::LCParser->new(\$incoming);
2520: my $done = 0;
2521:
2522: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2523: my $num = $token->[1]{num};
2524: my $text = $p->get_text("/version");
2525: if (defined($numver)) {
2526: if ($num == $numver) {
2527: if ($htmldecode) {
2528: $text = &HTML::Entities::decode($text);
2529: }
2530: $$versions{$numver}=$text;
2531: $done = 1;
2532: }
2533: } else {
2534: if ($htmldecode) {
2535: $text = &HTML::Entities::decode($text);
2536: }
2537: $$versions{$num}=$text;
2538: }
2539: }
2540: } else {
2541: if (!defined($numver)) {
2542: $numver = 0;
2543: }
2544: if ($htmldecode) {
2545: $$versions{$numver} = $incoming;
2546: } else {
2547: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2548: }
2549: }
2550: return;
2551: }
2552:
2553: sub get_post_attachments {
2554: my ($attachments,$attachmenturls) = @_;
2555: my $num;
2556: if ($attachmenturls =~ m/^<attachment id="0">/) {
2557: my $p = HTML::LCParser->new(\$attachmenturls);
2558: while (my $token = $p->get_tag("attachment","filename","post")) {
2559: if ($token->[0] eq "attachment") {
2560: $num = $token->[1]{id};
2561: %{$$attachments{$num}} =();
2562: } elsif ($token->[0] eq "filename") {
2563: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2564: } elsif ($token->[0] eq "post") {
2565: my $id = $token->[1]{id};
2566: $$attachments{$num}{$id} = $p->get_text("/post");
2567: }
2568: }
2569: } else {
2570: %{$$attachments{'0'}} = ();
2571: $$attachments{'0'}{'filename'} = $attachmenturls;
2572: $$attachments{'0'}{'0'} = 'n';
2573: }
2574:
2575: return;
2576: }
2577:
2578: sub fail_redirect {
2579: my ($r,$feedurl) = @_;
2580: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2581: my %lt = &Apache::lonlocal::texthash(
2582: 'sorr' => 'Sorry, no recipients ...',
2583: );
2584: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2585: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2586: {'redirect' => [2,$feedurl],
2587: 'only_body' => 1,}));
2588: $r->print(<<ENDFAILREDIR);
2589: <img align="right" src="$logo" />
2590: <b>$lt{'sorr'}</b>
2591: ENDFAILREDIR
2592: $r->print(&Apache::loncommon::end_page());
2593: }
2594:
2595: sub redirect_back {
2596: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2597: my $sorttag = '';
2598: my $roletag = '';
2599: my $statustag = '';
2600: my $sectag = '';
2601: my $grptag = '';
2602: my $userpicktag = '';
2603: my $qrystr = '';
2604: my $prevtag = '';
2605:
2606: &Apache::loncommon::content_type($r,'text/html');
2607: $r->send_http_header;
2608: &dewrapper(\$feedurl);
2609: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2610: if ($previous > 0) {
2611: $qrystr = 'previous='.$previous;
2612: if ($feedurl =~ /\?register=1/) {
2613: $feedurl .= '&'.$qrystr;
2614: } else {
2615: $feedurl .= '?'.$qrystr;
2616: }
2617: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2618: }
2619: if (defined($sort)) {
2620: my $sortqry = 'sortposts='.$sort;
2621: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2622: $feedurl .= '&'.$sortqry;
2623: } else {
2624: $feedurl .= '?'.$sortqry;
2625: }
2626: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2627: if (defined($numpicks)) {
2628: my $userpickqry = 'totposters='.$numpicks;
2629: $feedurl .= '&'.$userpickqry;
2630: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2631: } else {
2632: if (ref($sectionpick) eq 'ARRAY') {
2633: $feedurl .= '&sectionpick=';
2634: $sectag .= '<input type="hidden" name="sectionpick" value="';
2635: foreach my $sec (@{$sectionpick}) {
2636: $feedurl .= $sec.',';
2637: $sectag .= $sec.',';
2638: }
2639: $feedurl =~ s/,$//;
2640: $sectag =~ s/,$//;
2641: $sectag .= '" />';
2642: } else {
2643: $feedurl .= '&sectionpick='.$sectionpick;
2644: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2645: }
2646: if (ref($grouppick) eq 'ARRAY') {
2647: $feedurl .= '&grouppick=';
2648: $sectag .= '<input type="hidden" name="grouppick" value="';
2649: foreach my $grp (@{$grouppick}) {
2650: $feedurl .= $grp.',';
2651: $grptag .= $grp.',';
2652: }
2653: $feedurl =~ s/,$//;
2654: $grptag =~ s/,$//;
2655: $grptag .= '" />';
2656: } else {
2657: $feedurl .= '&grouppick='.$grouppick;
2658: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2659: }
2660: if (ref($rolefilter) eq 'ARRAY') {
2661: $feedurl .= '&rolefilter=';
2662: $roletag .= '<input type="hidden" name="rolefilter" value="';
2663: foreach my $role (@{$rolefilter}) {
2664: $feedurl .= $role.',';
2665: $roletag .= $role.',';
2666: }
2667: $feedurl =~ s/,$//;
2668: $roletag =~ s/,$//;
2669: $roletag .= '" />';
2670: } else {
2671: $feedurl .= '&rolefilter='.$rolefilter;
2672: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2673: }
2674: $feedurl .= '&statusfilter='.$statusfilter;
2675: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2676: }
2677: }
2678: my $grouptag;
2679: if ($group ne '') {
2680: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2681: my $refarg;
2682: if (exists($env{'form.ref'})) {
2683: $refarg = '&ref='.$env{'form.ref'};
2684: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2685: }
2686: if ($feedurl =~ /\?/) {
2687: $feedurl .= '&group='.$group.$refarg;
2688: } else {
2689: $feedurl .= '?group='.$group.$refarg;
2690: }
2691: }
2692: &Apache::lonenc::check_encrypt(\$feedurl);
2693: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2694: my %onload;
2695: if ($env{'environment.remote'} ne 'off') {
2696: $onload{'onload'} =
2697: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
2698: }
2699: my $start_page=
2700: &Apache::loncommon::start_page('Feedback sent',undef,
2701: {'redirect' => [0,$feedurl],
2702: 'only_body' => 1,
2703: 'add_entries' => \%onload});
2704: my $end_page = &Apache::loncommon::end_page();
2705: $r->print(<<ENDREDIR);
2706: $start_page
2707: <img align="right" src="$logo" />
2708: $typestyle
2709: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2710: $blog
2711: $toolarge
2712: <font color="red">$status</font>
2713: <form name="reldt" action="$feedurl" target="loncapaclient">
2714: $prevtag
2715: $sorttag
2716: $statustag
2717: $roletag
2718: $sectag
2719: $grptag
2720: $userpicktag
2721: $grouptag
2722: </form>
2723: $end_page
2724: ENDREDIR
2725: }
2726:
2727: sub no_redirect_back {
2728: my ($r,$feedurl) = @_;
2729: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2730:
2731: my %onload;
2732: if ($env{'environment.remote'} ne 'off') {
2733: $onload{'onload'} =
2734: "if (window.name!='loncapaclient') { self.window.close(); }";
2735: }
2736:
2737: my %body_options = ('only_body' => 1,
2738: 'bgcolor' => '#FFFFFF',
2739: 'add_entries' => \%onload,);
2740:
2741: if ($feedurl !~ m{^/adm/feedback}) {
2742: $body_options{'rediect'} = [2,$feedurl];
2743: }
2744: my $start_page=
2745: &Apache::loncommon::start_page('Feedback not sent',undef,
2746: \%body_options);
2747:
2748: my $end_page = &Apache::loncommon::end_page();
2749:
2750: &Apache::lonenc::check_encrypt(\$feedurl);
2751: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2752: $r->print (<<ENDNOREDIRTWO);
2753: $start_page
2754: <img align="right" src="$logo" />
2755: <b>$nofeed</b>
2756: <br />
2757: $end_page
2758: ENDNOREDIRTWO
2759: }
2760:
2761: sub screen_header {
2762: my ($feedurl,$symb,$group) = @_;
2763: my $crscontent = &mt('Question/Comment/Feedback about course content');
2764: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2765: my $contribdisc = &mt('Contribution to course discussion of resource');
2766: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2767: my $namevis = &mt('name only visible to course faculty');
2768: my $crstype;
2769: if ($env{'request.course.id'}) {
2770: $crstype = &Apache::loncommon::course_type();
2771: if ($crstype eq 'Community') {
2772: $crscontent = &mt('Question/Comment/Feedback about community content');
2773: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2774: $contribdisc = &mt('Contribution to community discussion of resource');
2775: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2776: $namevis = &mt('name only visible to community facilitators');
2777: }
2778: }
2779: my $msgoptions='';
2780: my $discussoptions='';
2781: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2782: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2783: $msgoptions=
2784: '<p><label><input type="radio" name="discuss" value="author" /> '.
2785: &mt('Feedback to resource author').'</label></p>';
2786: }
2787: my %optionhash=();
2788: foreach my $type ('question','comment','policy') {
2789: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2790: }
2791: if (&feedback_available(1)) {
2792: $msgoptions.=
2793: '<p><label><input type="radio" name="discuss" value="question" /> '.
2794: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label></p>';
2795: }
2796: if (&feedback_available(0,1)) {
2797: $msgoptions.=
2798: '<p><label><input type="radio" name="discuss" value="course" /> '.
2799: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2800: '</label></p>';
2801: }
2802: if (&feedback_available(0,0,1)) {
2803: $msgoptions.=
2804: '<p><label><input type="radio" name="discuss" value="policy" /> '.
2805: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2806: '</label></p>';
2807: }
2808: }
2809: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2810: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2811: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2812: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2813: my $realsymb = $symb;
2814: if ($symb=~/^bulletin___/) {
2815: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
2816: $filename=~s|^adm/wrapper/||;
2817: $realsymb=&Apache::lonnet::symbread($filename);
2818: }
2819: if (!$blocked && &discussion_open(undef,$realsymb) &&
2820: (&Apache::lonnet::allowed('pch',
2821: $env{'request.course.id'}.
2822: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2823: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2824: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2825: $contribdisc.
2826: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2827: $anoncontrib.
2828: ' <i>('.$namevis.')</i></label> '.
2829: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2830: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2831: if (!$blockblog) {
2832: $discussoptions.= &add_blog_checkbox($crstype);
2833: }
2834: }
2835: }
2836: if ($msgoptions) {
2837: $msgoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2838: .' '.&mt('Send Feedback').'</h2><p>'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</p>'
2839: .$msgoptions;
2840: }
2841: if ($discussoptions) {
2842: $discussoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2843: .' '.&mt('Discussion Contributions').'</h2><p>'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</p>'
2844: .$discussoptions;
2845: }
2846: return $msgoptions.$discussoptions;
2847: }
2848:
2849: sub resource_output {
2850: my ($feedurl) = @_;
2851: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2852: $usersaw=~s/\<body[^\>]*\>//gi;
2853: $usersaw=~s/\<\/body\>//gi;
2854: $usersaw=~s/\<html\>//gi;
2855: $usersaw=~s/\<\/html\>//gi;
2856: $usersaw=~s/\<head\>//gi;
2857: $usersaw=~s/\<\/head\>//gi;
2858: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2859: return $usersaw;
2860: }
2861:
2862: sub clear_out_html {
2863: my ($message,$override)=@_;
2864: # Always allow the <m>-tag
2865: my %html=(M=>1);
2866: # Check if more is allowed
2867: my $cid=$env{'request.course.id'};
2868: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2869: ($override)) {
2870: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2871: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2872: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2873: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2874: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2875: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2876: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2877: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2878: }
2879: # Do the substitution of everything that is not explicitly allowed
2880: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2881: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2882: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2883: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2884: return $message;
2885: }
2886:
2887: sub assemble_email {
2888: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2889: my %lt = &Apache::lonlocal::texthash(
2890: 'prev' => 'Previous attempts of student (if applicable)',
2891: 'orig' => 'Original screen output (if applicable)',
2892: 'corr' => 'Correct Answer(s) (if applicable)',
2893: );
2894: if (&Apache::loncommon::course_type() eq 'Community') {
2895: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2896: }
2897: my $email=<<"ENDEMAIL";
2898: $message
2899: ENDEMAIL
2900: my $citations=<<"ENDCITE";
2901: <h2>$lt{'prev'}</h2>
2902: $prevattempts
2903: <br /><hr />
2904: <h2>$lt{'orig'}</h2>
2905: $usersaw
2906: <h2>$lt{'corr'}</h2>
2907: $useranswer
2908: ENDCITE
2909: return ($email,$citations);
2910: }
2911:
2912:
2913: sub feedback_available {
2914: my ($question,$course,$policy)=@_;
2915: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2916: $course,$policy);
2917: return scalar(%to);
2918: }
2919:
2920: sub send_msg {
2921: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2922: my $status='';
2923: my $sendsomething=0;
2924: my $restitle = &get_resource_title($symb,$feedurl);
2925: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2926: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2927: foreach my $key (keys(%to)) {
2928: if ($key) {
2929: my ($user,$domain) = split(/\:/,$key,2);
2930: if (!defined($user)) {
2931: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
2932: } elsif (!defined($domain)) {
2933: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
2934: } else {
2935: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
2936: $title.' ['.$restitle.']',$email,$citations,$feedurl,
2937: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
2938: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
2939: } else {
2940: $sendsomething++;
2941: }
2942: }
2943: }
2944: }
2945:
2946:
2947: my %record=&Apache::lonnet::restore('_feedback');
2948: my ($temp)=keys(%record);
2949: unless ($temp=~/^error\:/) {
2950: my %newrecord=();
2951: $newrecord{'resource'}=$feedurl;
2952: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2953: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
2954: $status.='<br />'.&mt('Not registered').'<br />';
2955: }
2956: }
2957:
2958: return ($status,$sendsomething);
2959: }
2960:
2961: # Store feedback "likes"
2962:
2963: sub storefeedbacklikes {
2964: my ($likes,$uname,$udom,$course)=@_;
2965: unless ($likes) { $likes=0; }
2966: if ($likes>0) { $likes=1; }
2967: if ($likes<0) { $likes=-1; }
2968: unless ($uname) { $uname=$env{'user.name'}; }
2969: unless ($udom) { $udom=$env{'user.domain'}; }
2970: unless ($course) { $course=$env{'request.course.id'}; }
2971: my %record=&getfeedbackrecords($uname,$udom,$course);
2972: my $totallikes=$record{'totallikes'};
2973: $totallikes+=$likes;
2974: my %newrecord=('likes_user' => $env{'user.name'},
2975: 'likes_domain' => $env{'user.domain'},
2976: 'likes' => $likes,
2977: 'totallikes' => $totallikes);
2978: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
2979: }
2980:
2981: sub adddiscuss {
2982: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
2983: my $status='';
2984: my $realsymb;
2985: if ($symb=~/^bulletin___/) {
2986: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
2987: $filename=~s|^adm/wrapper/||;
2988: $realsymb=&Apache::lonnet::symbread($filename);
2989: }
2990: my ($cnum,$cdom);
2991: if ($env{'request.course.id'}) {
2992: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2993: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2994: }
2995: if (&discussion_open(undef,$realsymb) &&
2996: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
2997: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2998: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
2999: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3000:
3001: my %contrib=('message' => $email,
3002: 'sendername' => $env{'user.name'},
3003: 'senderdomain' => $env{'user.domain'},
3004: 'screenname' => $env{'environment.screenname'},
3005: 'plainname' => $env{'environment.firstname'}.' '.
3006: $env{'environment.middlename'}.' '.
3007: $env{'environment.lastname'}.' '.
3008: $env{'enrironment.generation'},
3009: 'attachmenturl'=> $attachmenturl,
3010: 'subject' => $subject);
3011: if ($env{'form.replydisc'}) {
3012: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3013: }
3014: if ($anon) {
3015: $contrib{'anonymous'}='true';
3016: }
3017: if (($symb) && ($email)) {
3018: my $now = time;
3019: if ($env{'form.editdisc'}) {
3020: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3021: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3022: $contrib{'timestamp'} = $now;
3023: $contrib{'history'} = '';
3024: my $numoldver = 0;
3025: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3026: &Apache::lonenc::check_decrypt(\$oldsymb);
3027: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3028: # get timestamp for last post and history
3029: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3030: $env{'course.'.$env{'request.course.id'}.'.domain'},
3031: $env{'course.'.$env{'request.course.id'}.'.num'});
3032: if (defined($oldcontrib{$oldidx.':replyto'})) {
3033: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3034: }
3035: if (defined($oldcontrib{$oldidx.':history'})) {
3036: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3037: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3038: $numoldver = @oldversions;
3039: } else {
3040: $numoldver = 1;
3041: }
3042: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3043: }
3044: my $numnewver = $numoldver + 1;
3045: if (defined($oldcontrib{$oldidx.':subject'})) {
3046: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3047: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3048: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3049: } else {
3050: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3051: }
3052: }
3053: if (defined($oldcontrib{$oldidx.':message'})) {
3054: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3055: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3056: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3057: } else {
3058: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3059: }
3060: }
3061: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3062: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3063: $oldsymb,$oldidx,\%contrib,
3064: $env{'course.'.$env{'request.course.id'}.'.domain'},
3065: $env{'course.'.$env{'request.course.id'}.'.num'});
3066: $status='Editing class discussion'.($anon?' (anonymous)':'');
3067: } else {
3068: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3069: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3070: $env{'course.'.$env{'request.course.id'}.'.domain'},
3071: $env{'course.'.$env{'request.course.id'}.'.num'});
3072: }
3073: my %storenewentry=($symb => $now);
3074: $status.='<br />'.&mt('Updating discussion time').': '.
3075: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3076: $env{'course.'.$env{'request.course.id'}.'.domain'},
3077: $env{'course.'.$env{'request.course.id'}.'.num'});
3078: }
3079: my %record=&getdiscussionrecords();
3080: my ($temp)=keys(%record);
3081: unless ($temp=~/^error\:/) {
3082: my %newrecord=();
3083: $newrecord{'resource'}=$symb;
3084: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3085: $status.='<br />'.&mt('Registering').': '.
3086: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3087: }
3088: } else {
3089: $status.='Failed.';
3090: }
3091: return $status.'<br />';
3092: }
3093:
3094: # Routine to get the complete discussion records
3095:
3096: sub getdiscussionrecords {
3097: my ($uname,$udom,$course)=@_;
3098: unless ($uname) { $uname=$env{'user.name'}; }
3099: unless ($udom) { $udom=$env{'user.domain'}; }
3100: unless ($course) { $course=$env{'request.course.id'}; }
3101: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3102: return %record;
3103: }
3104:
3105: # Store discussion "likes"
3106:
3107: sub storediscussionlikes {
3108: my ($likes,$uname,$udom,$course)=@_;
3109: unless ($likes) { $likes=0; }
3110: if ($likes>0) { $likes=1; }
3111: if ($likes<0) { $likes=-1; }
3112: unless ($uname) { $uname=$env{'user.name'}; }
3113: unless ($udom) { $udom=$env{'user.domain'}; }
3114: unless ($course) { $course=$env{'request.course.id'}; }
3115: my %record=&getdiscussionrecords($uname,$udom,$course);
3116: my $totallikes=$record{'totallikes'};
3117: my $totalvotes=$record{'totalvotes'};
3118: $totallikes+=$likes;
3119: $totalvotes++;
3120: my %newrecord=('likes_user' => $env{'user.name'},
3121: 'likes_domain' => $env{'user.domain'},
3122: 'likes' => $likes,
3123: 'totallikes' => $totallikes,
3124: 'totalvotes' => $totalvotes);
3125: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3126: return $status;
3127: }
3128:
3129: sub get_discussion_info {
3130: my ($idx,%contrib) = @_;
3131: my $changelast = 0;
3132: my $count = 0;
3133: my $hiddenflag = 0;
3134: my $deletedflag = 0;
3135: my ($hidden,$deleted,%info,$newlastdisc);
3136: my $version = $contrib{'version'};
3137: if ($version) {
3138: for (my $id=$version; $id>0; $id--) {
3139: my $vkeys=$contrib{$id.':keys'};
3140: my @keys=split(/:/,$vkeys);
3141: if (grep(/^hidden$/,@keys)) {
3142: if (!$hiddenflag) {
3143: $hidden = $contrib{$id.':hidden'};
3144: $hiddenflag = 1;
3145: }
3146: } elsif (grep(/^deleted$/,@keys)) {
3147: if (!$deletedflag) {
3148: $deleted = $contrib{$id.':deleted'};
3149: $deletedflag = 1;
3150: }
3151: } else {
3152: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3153: $count++;
3154: $info{$count}{'id'} = $id;
3155: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3156: }
3157: }
3158: }
3159: if ($info{'1'}{'id'} == $idx) {
3160: $changelast = 1;
3161: if ($count > 1) {
3162: $newlastdisc = $info{'2'}{'timestamp'};
3163: } else {
3164: $newlastdisc = 0;
3165: }
3166: }
3167: }
3168: return ($changelast,$newlastdisc);
3169: }
3170:
3171: # ----------------------------------------------------------- Preview function
3172:
3173: sub show_preview {
3174: my ($r) = @_;
3175: &Apache::loncommon::content_type($r,'text/html');
3176: $r->send_http_header;
3177: my $start_page=
3178: &Apache::loncommon::start_page('Preview',undef,
3179: {'only_body' => 1,});
3180:
3181: my $message=&clear_out_html($env{'form.comment'});
3182: &newline_to_br(\$message);
3183: $message=&Apache::lonspeller::markeduptext($message);
3184: $message=&Apache::lontexconvert::msgtexconverted($message);
3185: my $subject=&clear_out_html($env{'form.subject'});
3186: $subject=~s/\n/\<br \/\>/g;
3187: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3188:
3189: my $end_page = &Apache::loncommon::end_page();
3190:
3191: $r->print($start_page
3192: .'<h1>'.&mt('Preview').'</h1>'
3193: .&Apache::lonhtmlcommon::start_pick_box()
3194: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3195: .$subject
3196: .&Apache::lonhtmlcommon::row_closure()
3197: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3198: .$message
3199: .&Apache::lonhtmlcommon::row_closure(1)
3200: .&Apache::lonhtmlcommon::end_pick_box()
3201: .$end_page
3202: );
3203: }
3204:
3205: sub contains_block_html {
3206: my ($message)=@_;
3207: return ($message =~ m{
3208: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3209: \s*
3210: (\w+\=['"]\w+['"])*
3211: \s*
3212: (
3213: \s*/>|
3214: >.*</\1\s*>
3215: )}xs
3216: );
3217: }
3218:
3219: sub tidy_html {
3220: my ($message)=@_;
3221: # my $tidy = HTML::Tidy::libXML->new();
3222: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3223: # $xhtml =~ m/<body>(.*)<\/body>/is;
3224: # my $clean = $1;
3225: # # remove any empty block-level tags
3226: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3227: # $message=$clean;
3228: return $message;
3229: }
3230:
3231: sub newline_to_br {
3232: my ($message)=@_;
3233: my $newmessage;
3234: my $parser=HTML::LCParser->new($message);
3235: while (my $token=$parser->get_token()) {
3236: if ($token->[0] eq 'T') {
3237: my $text=$token->[1];
3238: $text=~s/\n/\<br \/\>/g;
3239: $newmessage.=$text;
3240: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3241: $newmessage.=$token->[1];
3242: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3243: $newmessage.=$token->[2];
3244: } elsif ($token->[0] eq 'S') {
3245: $newmessage.=$token->[4];
3246: }
3247:
3248: }
3249: $$message=$newmessage;
3250: }
3251:
3252: sub generate_preview_button {
3253: my ($formname,$fieldname)=@_;
3254: unless ($formname) { $formname='mailform'; }
3255: unless ($fieldname) { $fieldname='comment'; }
3256: my $pre=&mt("Show Preview and Check Spelling");
3257: return(<<ENDPREVIEW);
3258: <br />
3259: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3260: <input type="hidden" name="subject" />
3261: <input type="hidden" name="comment" />
3262: <input type="button" value="$pre"
3263: onclick="if (typeof(document.$formname.onsubmit)=='function') {document.$formname.onsubmit();};this.form.comment.value=document.$formname.$fieldname.value;this.form.subject.value=document.$formname.subject.value;this.form.submit();" />
3264: </form>
3265: ENDPREVIEW
3266: }
3267:
3268: sub modify_attachments {
3269: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3270: $attachmaxtext,$toolarge)=@_;
3271:
3272: my %lt = &Apache::lonlocal::texthash(
3273: 'subj' => 'Subject',
3274: 'thfo' => 'The following attachments were part of the most recent saved version of this posting.',
3275: 'chth' => 'Check the checkboxes for any you wish to remove.',
3276: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3277: 'adda' => 'Add a new attachment to this post.',
3278: 'stch' => 'Save Changes',
3279: );
3280: my $js = <<END;
3281: <script type="text/javascript">
3282: function setAction () {
3283: document.modattachments.action = document.modattachments.origpage.value;
3284: document.modattachments.submit();
3285: }
3286: </script>
3287: END
3288:
3289: # Breadcrumbs
3290: my $brcrum = [{'href' => '',
3291: 'text' => 'Discussion Post Attachments'}];
3292: my $start_page =
3293: &Apache::loncommon::start_page('Discussion Post Attachments',$js,
3294: {'bread_crumbs' => $brcrum,});
3295:
3296: my $orig_subject = &unescape($env{'form.subject'});
3297: my $subject=&clear_out_html($orig_subject);
3298: $subject=~s/\n/\<br \/\>/g;
3299: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3300: my $timestamp=$env{'form.timestamp'};
3301: my $numoldver=$env{'form.numoldver'};
3302:
3303: my $msg = '';
3304: my %attachments = ();
3305: my %currattach = ();
3306: if ($idx) {
3307: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3308: }
3309: &Apache::lonenc::check_encrypt(\$symb);
3310:
3311: my $end_page =
3312: &Apache::loncommon::end_page();
3313:
3314: $r->print(<<END);
3315: $start_page
3316: $toolarge
3317: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3318: <br />
3319: <table class="LC_data_table">
3320: <tr>
3321: <td colspan="2">
3322: <b>Subject:</b> <b>$subject</b><br /><br />
3323: END
3324: if ($idx) {
3325: if ($attachmenturls) {
3326: my @currold = keys(%currattach);
3327: if (@currold > 0) {
3328: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3329: foreach my $id (@currold) {
3330: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3331: $attachurl =~ m#/([^/]+)$#;
3332: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3333: }
3334: $r->print("<br />");
3335: }
3336: }
3337: }
3338: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3339: $r->print($lt{'thef'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3340: foreach my $attach (@{$currnewattach}) {
3341: $attach =~ m#/([^/]+)$#;
3342: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3343: }
3344: $r->print("<br />");
3345: }
3346: $r->print(<<END);
3347: </td></tr>
3348: <tr>
3349: <td>
3350: $lt{'adda'}</td><td><input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" />
3351: </td>
3352: </tr>
3353: <tr>
3354: <td colspan="2">$attachmaxtext</td>
3355: </tr>
3356: </table>
3357: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3358: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3359: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3360: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3361: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3362: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3363: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3364: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3365: END
3366: foreach my $item (@{$currnewattach}) {
3367: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3368: }
3369: foreach my $item (@{$currdelold}) {
3370: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3371: }
3372: $r->print(<<END);
3373: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3374: </form>
3375: $end_page
3376: END
3377: return;
3378: }
3379:
3380: sub process_attachments {
3381: my ($currnewattach,$currdelold,$keepold) = @_;
3382:
3383: @{$currnewattach}=
3384: &Apache::loncommon::get_env_multiple('form.currnewattach');
3385: @{$currdelold}=
3386: &Apache::loncommon::get_env_multiple('form.deloldattach');
3387: if (exists($env{'form.delnewattach'})) {
3388: my @currdelnew =
3389: &Apache::loncommon::get_env_multiple('form.delnewattach');
3390: my @currnew = ();
3391: foreach my $newone (@{$currnewattach}) {
3392: my $delflag = 0;
3393: foreach my $item (@currdelnew) {
3394: if ($newone eq $item) {
3395: $delflag = 1;
3396: last;
3397: }
3398: }
3399: unless ($delflag) {
3400: push(@currnew, $newone);
3401: }
3402: }
3403: @{$currnewattach} = @currnew;
3404: }
3405: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3406: }
3407:
3408: sub generate_attachments_button {
3409: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3410: $numoldver,$mode,$blockblog) = @_;
3411: my $origpage = $ENV{'REQUEST_URI'};
3412: my $att=$attachnum.' '.&mt("attachments");
3413: my %lt = &Apache::lonlocal::texthash(
3414: 'clic' => 'Click to add/remove attachments',
3415: );
3416: my $response = (<<END);
3417: <br />
3418: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3419: $lt{'clic'}: <input type="button" value="$att"
3420: onclick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=escape(document.mailform.comment.value);this.form.subject.value=escape(document.mailform.subject.value);
3421: END
3422: if (!$blockblog) {
3423: $response .= 'setblogvalue();';
3424: }
3425: unless ($mode eq 'board') {
3426: $response .= 'javascript:anonchk();';
3427: }
3428: $response .= (<<ENDATTACH);
3429: this.form.submit();" />
3430: <input type="hidden" name="origpage" value="$origpage" />
3431: <input type="hidden" name="idx" value="$idx" />
3432: <input type="hidden" name="timestamp" value="$now" />
3433: <input type="hidden" name="subject" />
3434: <input type="hidden" name="comment" />
3435: <input type="hidden" name="blog" value="0" />
3436: <input type="hidden" name="discuss" value="0" />
3437: <input type="hidden" name="numoldver" value="$numoldver" />
3438: ENDATTACH
3439: if (defined($deloldattach)) {
3440: if (@{$deloldattach} > 0) {
3441: foreach my $delatt (@{$deloldattach}) {
3442: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3443: }
3444: }
3445: }
3446: if (defined($currnewattach)) {
3447: if (@{$currnewattach} > 0) {
3448: foreach my $attach (@{$currnewattach}) {
3449: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3450: }
3451: }
3452: }
3453: $response .= '</form>';
3454: return $response;
3455: }
3456:
3457: sub extract_attachments {
3458: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3459: %{$attachments}=();
3460: &get_post_attachments($attachments,$attachmenturls);
3461: foreach my $id (sort(keys(%{$attachments}))) {
3462: if (exists($$attachments{$id}{$numoldver})) {
3463: if (defined($currdelold)) {
3464: if (@{$currdelold} > 0) {
3465: unless (grep/^$id$/,@{$currdelold}) {
3466: $$currattach{$id} = $$attachments{$id}{$numoldver};
3467: }
3468: } else {
3469: $$currattach{$id} = $$attachments{$id}{$numoldver};
3470: }
3471: } else {
3472: $$currattach{$id} = $$attachments{$id}{$numoldver};
3473: }
3474: }
3475: }
3476: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3477: if (@attached == 1) {
3478: my $id = $attached[0];
3479: my $attachurl;
3480: if ($attachmenturls =~ m/^<attachment id="0">/) {
3481: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3482: } else {
3483: $attachurl = $$attachments{$id}{'filename'};
3484: }
3485: $attachurl=~m|/([^/]+)$|;
3486: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3487: $1.'</tt></a><br />';
3488: &Apache::lonnet::allowuploaded('/adm/feedback',
3489: $attachurl);
3490: } elsif (@attached > 1) {
3491: $$message.='<ol>';
3492: foreach my $attach (@attached) {
3493: my $id = $attach;
3494: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3495: my ($fname)
3496: =($attachurl=~m|/([^/]+)$|);
3497: $$message .= '<li><a href="'.$attachurl.
3498: '"><tt>'.
3499: $fname.'</tt></a></li>';
3500: &Apache::lonnet::allowuploaded('/adm/feedback',
3501: $attachurl);
3502: }
3503: $$message .= '</ol>';
3504: }
3505: }
3506:
3507: sub construct_attachmenturl {
3508: my ($currnewattach,$keepold,$symb,$idx)=@_;
3509: my $oldattachmenturl;
3510: my $newattachmenturl;
3511: my $startnum = 0;
3512: my $currver = 0;
3513: if (($env{'form.editdisc'}) && ($idx)) {
3514: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3515: $env{'course.'.$env{'request.course.id'}.'.domain'},
3516: $env{'course.'.$env{'request.course.id'}.'.num'});
3517: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3518: if ($contrib{$idx.':history'}) {
3519: if ($contrib{$idx.':history'} =~ /:/) {
3520: my @oldversions = split(/:/,$contrib{$idx.':history'});
3521: $currver = 1 + scalar(@oldversions);
3522: } else {
3523: $currver = 2;
3524: }
3525: } else {
3526: $currver = 1;
3527: }
3528: if ($oldattachmenturl) {
3529: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3530: my %attachments = ();
3531: my $prevver = $currver-1;
3532: &get_post_attachments(\%attachments,$oldattachmenturl);
3533: my $numattach = scalar(keys(%attachments));
3534: $startnum += $numattach;
3535: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3536: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3537: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3538: unless ($item eq 'filename') {
3539: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3540: }
3541: }
3542: if (grep/^$num$/,@{$keepold}) {
3543: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3544: }
3545: $newattachmenturl .= '</attachment>';
3546: }
3547: } else {
3548: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3549: unless (grep/^0$/,@{$keepold}) {
3550: $newattachmenturl .= '<post id="1">n</post>';
3551: }
3552: $newattachmenturl .= '</attachment>';
3553: $startnum ++;
3554: }
3555: }
3556: }
3557: for (my $i=0; $i<@{$currnewattach}; $i++) {
3558: my $attachnum = $startnum + $i;
3559: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3560: }
3561: return $newattachmenturl;
3562: }
3563:
3564: sub add_blog_checkbox {
3565: my ($crstype) = @_;
3566: my $checkstatus;
3567: if ($env{'form.blog'}) {
3568: $checkstatus = 'checked="checked"';
3569: }
3570: my $output = '
3571: <script type="text/javascript">
3572: function setblogvalue() {
3573: if (document.mailform.blog.checked) {
3574: document.attachment.blog.value = 1;
3575: } else {
3576: document.attachment.blog.value = 0;
3577: }
3578: }
3579: </script><br />
3580: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3581: if ($crstype eq 'Community') {
3582: $output .= &mt('Add to my public community blog');
3583: } else {
3584: $output .= &mt('Add to my public course blog');
3585: }
3586: $output .= '</label><br />'."\n";
3587: return $output;
3588: }
3589:
3590: sub has_discussion {
3591: my $resourcesref = shift;
3592: my $navmap = Apache::lonnavmaps::navmap->new();
3593: if (defined($navmap)) {
3594: my @allres=$navmap->retrieveResources();
3595: foreach my $resource (@allres) {
3596: if ($resource->hasDiscussion()) {
3597: my $ressymb = $resource->wrap_symb();
3598: if (ref($resourcesref) eq 'ARRAY') {
3599: push(@{$resourcesref}, $ressymb);
3600: }
3601: }
3602: }
3603: } else {
3604: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3605: }
3606: return;
3607: }
3608:
3609: sub sort_filter_names {
3610: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3611: if (ref($sort_types) eq 'HASH') {
3612: %{$sort_types} = (
3613: ascdate => 'Date order - oldest first',
3614: descdate => 'Date order - newest first',
3615: thread => 'Threaded',
3616: subject => 'By subject',
3617: username => 'By domain and username',
3618: lastfirst => 'By last name, first name'
3619: );
3620: }
3621: my @courseroles = qw(st in ta ep ad);
3622: if ($crstype eq 'Community') {
3623: push(@courseroles,'co');
3624: } else {
3625: push(@courseroles,'cc');
3626: }
3627: if (ref($role_types) eq 'HASH') {
3628: foreach my $role (@courseroles) {
3629: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3630: }
3631: $role_types->{'all'} = 'All roles';
3632: $role_types->{'cr'} = 'Custom role';
3633: }
3634: if (ref($status_types) eq 'HASH') {
3635: %{$status_types} = (
3636: all => 'Roles of any status',
3637: Active => 'Only active roles',
3638: Expired => 'Only past roles',
3639: Future => 'Only future roles',
3640: );
3641: }
3642: }
3643:
3644: sub handler {
3645: my $r = shift;
3646: if ($r->header_only) {
3647: &Apache::loncommon::content_type($r,'text/html');
3648: $r->send_http_header;
3649: return OK;
3650: }
3651:
3652: # --------------------------- Get query string for limited number of parameters
3653:
3654: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3655: ['like','unlike','hide','unhide','deldisc','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']);
3656: my $group = $env{'form.group'};
3657: my %attachmax = (
3658: text => &mt('(128 KB max size)'),
3659: num => 131072,
3660: );
3661: if ($env{'form.editdisc'}) {
3662: if (!(&editing_allowed($env{'form.editdisc'},$env{'form.group'}))) {
3663: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3664: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3665: my $feedurl=&Apache::lonnet::clutter($url);
3666: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3667: undef,undef,undef,$group);
3668: return OK;
3669: }
3670: }
3671: if ($env{'form.discsymb'}) {
3672: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3673: my $readkey = $symb.'_read';
3674: my $chgcount = 0;
3675: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3676: foreach my $key (keys(%env)) {
3677: if ($key =~ m/^form\.postunread_(\d+)/) {
3678: if ($readinghash{$readkey} =~ /\.$1\./) {
3679: $readinghash{$readkey} =~ s/\.$1\.//;
3680: $chgcount ++;
3681: }
3682: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3683: unless ($readinghash{$readkey} =~ /\.$1\./) {
3684: $readinghash{$readkey} .= '.'.$1.'.';
3685: $chgcount ++;
3686: }
3687: }
3688: }
3689: if ($chgcount > 0) {
3690: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3691: \%readinghash,$env{'user.domain'},$env{'user.name'});
3692: }
3693: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3694: '0','0','','',$env{'form.previous'},'','','',
3695: undef,undef,undef,$group);
3696: return OK;
3697: }
3698: if ($env{'form.allversions'}) {
3699: &Apache::loncommon::content_type($r,'text/html');
3700: &Apache::loncommon::no_cache($r);
3701: $r->send_http_header;
3702:
3703: # Breadcrumbs
3704: my $brcrum = [{'href' => '',
3705: 'text' => 'Discussion Post Versions'}];
3706:
3707: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,
3708: {'bread_crumbs' => $brcrum,})
3709: );
3710:
3711: my $crs='/'.$env{'request.course.id'};
3712: if ($env{'request.course.sec'}) {
3713: $crs.='_'.$env{'request.course.sec'};
3714: }
3715: $crs=~s|_|/|g;
3716: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3717: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3718: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3719: ($symb)=&get_feedurl_and_clean_symb($symb);
3720: my $ressymb = &wrap_symb($symb);
3721: my $group = $env{'form.group'};
3722: my $seeid;
3723: if (($group ne '') && (($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|))) {
3724: if (&check_group_priv($group,'dgp') eq 'ok') {
3725: $seeid = 1;
3726: }
3727: } else {
3728: $seeid = &Apache::lonnet::allowed('rin',$crs);
3729: }
3730: if ($idx > 0) {
3731: my %messages = ();
3732: my %subjects = ();
3733: my %attachmsgs = ();
3734: my %allattachments = ();
3735: my %imsfiles = ();
3736: my ($screenname,$plainname,$showaboutme);
3737: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3738: $env{'course.'.$env{'request.course.id'}.'.domain'},
3739: $env{'course.'.$env{'request.course.id'}.'.num'});
3740: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3741: }
3742: $r->print(&Apache::loncommon::end_page());
3743: return OK;
3744: }
3745: if ($env{'form.posterlist'}) {
3746: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3747: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3748: $env{'form.sortposts'});
3749: return OK;
3750: }
3751: if ($env{'form.userpick'}) {
3752: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3753: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3754: my $numpicks = @posters;
3755: my %discinfo;
3756: $discinfo{$symb.'_userpick'} = join('&',@posters);
3757: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3758: \%discinfo,$env{'user.domain'},$env{'user.name'});
3759: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3760: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3761: '',$numpicks,$group);
3762: return OK;
3763: }
3764: if ($env{'form.applysort'}) {
3765: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3766: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3767: '',$env{'form.previous'},$env{'form.sortposts'},
3768: $env{'form.rolefilter'},$env{'form.statusfilter'},
3769: $env{'form.sectionpick'},$env{'form.grouppick'},
3770: undef,$group);
3771: return OK;
3772: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3773: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3774: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3775: return OK;
3776: } elsif ($env{'form.navtime'}) {
3777: my %discinfo = ();
3778: my @resources = ();
3779: if (defined($env{'form.navmaps'})) {
3780: if ($env{'form.navmaps'} =~ /:/) {
3781: @resources = split(/:/,$env{'form.navmaps'});
3782: } else {
3783: @resources = ("$env{'form.navmaps'}");
3784: }
3785: } else {
3786: &has_discussion(\@resources);
3787: }
3788: my $numitems = @resources;
3789: my $feedurl = '/adm/navmaps';
3790: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3791: my %lt = &Apache::lonlocal::texthash(
3792: 'mnpa' => 'Marked "New" posts as read in a total of',
3793: 'robb' => 'resources/bulletin boards.',
3794: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3795: );
3796: foreach my $res (@resources) {
3797: my $ressymb=$res;
3798: &Apache::lonenc::check_decrypt(\$ressymb);
3799: my $lastkey = $ressymb.'_lastread';
3800: $discinfo{$lastkey} = $env{'form.navtime'};
3801: }
3802: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3803: if ($numitems > 0) {
3804: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3805: \%discinfo,$env{'user.domain'},$env{'user.name'});
3806: } else {
3807: $textline = "<b>$lt{'twnp'}</b>";
3808: }
3809: &Apache::loncommon::content_type($r,'text/html');
3810: $r->send_http_header;
3811: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3812: my %onload;
3813: if ($env{'environment.remote'} ne 'off') {
3814: $onload{'onload'} =
3815: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
3816: }
3817:
3818: my $start_page=
3819: &Apache::loncommon::start_page('New posts marked as read',undef,
3820: {'redirect' => [2,$feedurl],
3821: 'only_body' => 1,
3822: 'add_entries' => \%onload});
3823: my $end_page = &Apache::loncommon::end_page();
3824: $r->print (<<ENDREDIR);
3825: $start_page
3826: <img align="right" src="$logo" />
3827: $textline
3828: <form name="reldt" action="$feedurl" target="loncapaclient">
3829: </form>
3830: <br />
3831: $end_page
3832: ENDREDIR
3833: return OK;
3834: } elsif ($env{'form.modifydisp'}) {
3835: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3836: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3837: split(/_/,$env{'form.changes'});
3838: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3839: $dispchgB,$markchg,$toggchg,$feedurl);
3840: return OK;
3841: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3842: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3843: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3844: $env{'form.toggon'} || $env{'form.markread'}) {
3845: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3846: my %discinfo;
3847: # ------------------------ Modify setting for read/unread toggle for each post
3848: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3849: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3850: # --------- Modify setting for identification of 'NEW' posts in this discussion
3851: if ($env{'form.markondisp'}) {
3852: $discinfo{$symb.'_lastread'} = time;
3853: $discinfo{$symb.'_markondisp'} = 1;
3854: }
3855: if ($env{'form.markonread'}) {
3856: if ( $env{'form.previous'} > 0 ) {
3857: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
3858: }
3859: $discinfo{$symb.'_markondisp'} = 0;
3860: }
3861: # --------------------------------- Modify display setting for this discussion
3862: if ($env{'form.allposts'}) {
3863: $discinfo{$symb.'_showonlyunread'} = 0;
3864: $discinfo{$symb.'_showonlyunmark'} = 0;
3865: }
3866: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
3867: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
3868: # ----------------------------------------------------- Mark new posts not NEW
3869: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
3870: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3871: \%discinfo,$env{'user.domain'},$env{'user.name'});
3872: my $previous=$env{'form.previous'};
3873: if ($env{'form.markondisp'}) { $previous=undef; }
3874: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
3875: '0','0','','',$previous,'','','','','','',$group);
3876: return OK;
3877: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
3878: # ----------------------------------------------------------------- Hide/unhide
3879: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
3880: my ($symb,$idx)=split(/\:\:\:/,$entry);
3881: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3882:
3883: my $crs='/'.$env{'request.course.id'};
3884: if ($env{'request.course.sec'}) {
3885: $crs.='_'.$env{'request.course.sec'};
3886: }
3887: $crs=~s/\_/\//g;
3888: my $seeid=&Apache::lonnet::allowed('rin',$crs);
3889:
3890: if ($env{'form.hide'} && !$seeid && !(&editing_allowed($env{'form.hide'},$env{'form.group'}))) {
3891: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','','',
3892: undef,undef,$group,);
3893: return OK;
3894: }
3895:
3896: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3897: $env{'course.'.$env{'request.course.id'}.'.domain'},
3898: $env{'course.'.$env{'request.course.id'}.'.num'});
3899:
3900: my $currenthidden=$contrib{'hidden'};
3901: my $currentstudenthidden=$contrib{'studenthidden'};
3902:
3903: if ($env{'form.hide'}) {
3904: $currenthidden.='.'.$idx.'.';
3905: unless ($seeid) {
3906: $currentstudenthidden.='.'.$idx.'.';
3907: }
3908: } else {
3909: $currenthidden=~s/\.$idx\.//g;
3910: }
3911: my %newhash=('hidden' => $currenthidden);
3912: if ( ($env{'form.hide'}) && (!$seeid) ) {
3913: $newhash{'studenthidden'} = $currentstudenthidden;
3914: }
3915: if ($env{'form.hide'}) {
3916: my $changelast = 0;
3917: my $newlast;
3918: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
3919: if ($changelast) {
3920: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
3921: $env{'course.'.$env{'request.course.id'}.'.domain'},
3922: $env{'course.'.$env{'request.course.id'}.'.num'});
3923: }
3924: }
3925: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
3926: $env{'course.'.$env{'request.course.id'}.'.domain'},
3927: $env{'course.'.$env{'request.course.id'}.'.num'});
3928:
3929: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
3930: '0','0','','',$env{'form.previous'},undef,undef,undef,
3931: undef,undef,undef,$group);
3932: return OK;
3933: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
3934: # ----------------------------------------------------------------- Like/unlike
3935: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
3936: my ($symb,$idx)=split(/\:\:\:/,$entry);
3937: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3938:
3939: #
3940: # Likes and unlikes are in db-file "disclikes" of the course
3941: # The prefix is the $symb to identify the resource discussion,
3942: # and the $idx to identify the entry
3943: #
3944: my $prefix=$symb.':'.$idx.':';
3945: my %contrib=&Apache::lonnet::dump('disclikes',
3946: $env{'course.'.$env{'request.course.id'}.'.domain'},
3947: $env{'course.'.$env{'request.course.id'}.'.num'},
3948: '^'.$prefix);
3949: # Get current like or unlike status for the $idx for this user.
3950: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
3951: my ($userlikes,$userunlikes);
3952: if (ref($contrib{$prefix.'likers'}) eq 'HASH') {
3953: if (exists($contrib{$prefix.'likers'}{$thisuser})) {
3954: $userlikes = 1;
3955: }
3956: }
3957: if (ref($contrib{$prefix.'unlikers'}) eq 'HASH') {
3958: if (exists($contrib{$prefix.'unlikers'}{$thisuser})) {
3959: $userunlikes = 1;
3960: }
3961: }
3962:
3963: # Get the current "likes" count
3964: my $likes=$contrib{$prefix.'likes'};
3965: # Find out if they already voted
3966: # Users cannot like a post twice, or unlike it twice.
3967: # They can change their mind, though.
3968: my $alreadyflag=0;
3969: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
3970: if ($env{'form.like'}) {
3971: if ($userlikes) {
3972: $alreadyflag=1;
3973: } elsif ($userunlikes) {
3974: delete($contrib{$prefix.'unlikers'}{$thisuser});
3975: $likes++;
3976: } else {
3977: if (ref($contrib{$prefix.'likers'}) eq 'HASH') {
3978: $contrib{$prefix.'likers'}{$thisuser} = 1;
3979: } else {
3980: $contrib{$prefix.'likers'} = {$thisuser => 1};
3981: }
3982: $likes++;
3983: }
3984: } else {
3985: if ($userunlikes) {
3986: $alreadyflag=1;
3987: } elsif ($userlikes) {
3988: delete($contrib{$prefix.'likers'}{$thisuser});
3989: $likes--;
3990: } else {
3991: if (ref($contrib{$prefix.'unlikers'}) eq 'HASH') {
3992: $contrib{$prefix.'unlikers'}{$thisuser} = 1;
3993: } else {
3994: $contrib{$prefix.'unlikers'} = {$thisuser => 1};
3995: }
3996: $likes--;
3997: }
3998: }
3999: my $result;
4000: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4001: unless ($alreadyflag) {
4002: my %newhash=($prefix.'likes' => $likes,
4003: $prefix.'likers' => $contrib{$prefix.'likers'},
4004: $prefix.'unlikers' => $contrib{$prefix.'unlikers'});
4005: # Store data in db-file "disclikes"
4006: if (&Apache::lonnet::put('disclikes',
4007: \%newhash,
4008: $env{'course.'.$env{'request.course.id'}.'.domain'},
4009: $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
4010: # Also store with the person who posted the liked/unliked entry
4011: if ($env{'form.like'}) {
4012: &storediscussionlikes(1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4013: $result=&mt("Registered 'Like'");
4014: } else {
4015: &storediscussionlikes(-1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4016: $result=&mt("Registered 'Unlike'");
4017: }
4018: } else {
4019: # Oops, something went wrong
4020: $result=&mt("Failed to register vote");
4021: }
4022: }
4023: &redirect_back($r,$feedurl,$result.'<br />',
4024: '0','0','','',$env{'form.previous'},undef,undef,undef,
4025: undef,undef,undef,$group);
4026: return OK;
4027: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4028: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4029: if ($env{'form.cmd'} eq 'threadedon') {
4030: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4031: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4032: } else {
4033: &Apache::lonnet::del('environment',['threadeddiscussion']);
4034: &Apache::lonnet::delenv('environment.threadeddiscussion');
4035: }
4036: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4037: '0','0','','',$env{'form.previous'},undef,undef,undef,
4038: undef,undef,undef,$group);
4039: return OK;
4040: } elsif ($env{'form.deldisc'}) {
4041: # --------------------------------------------------------------- Hide for good
4042: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4043: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4044: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4045: $env{'course.'.$env{'request.course.id'}.'.domain'},
4046: $env{'course.'.$env{'request.course.id'}.'.num'});
4047: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4048: if ($changelast) {
4049: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4050: $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'});
4051: }
4052: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4053: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4054: $env{'course.'.$env{'request.course.id'}.'.domain'},
4055: $env{'course.'.$env{'request.course.id'}.'.num'});
4056: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
4057: '0','0','','',$env{'form.previous'},undef,undef,undef,
4058: undef,undef,undef,$group);
4059: return OK;
4060: } elsif ($env{'form.preview'}) {
4061: # -------------------------------------------------------- User wants a preview
4062: &show_preview($r);
4063: return OK;
4064: } elsif ($env{'form.attach'}) {
4065: # -------------------------------------------------------- Work on attachments
4066: &Apache::loncommon::content_type($r,'text/html');
4067: $r->send_http_header;
4068: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4069: my (@currnewattach,@currdelold,@keepold,$toolarge);
4070: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4071: if (exists($env{'form.addnewattach.filename'})) {
4072: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4073: my $subdir = 'feedback/'.$env{'form.timestamp'};
4074: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4075: push(@currnewattach, $newattachment);
4076: } else {
4077: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4078: }
4079: }
4080: my $attachmenturls;
4081: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4082: my $idx = $env{'form.idx'};
4083: if ($idx) {
4084: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4085: $env{'course.'.$env{'request.course.id'}.'.domain'},
4086: $env{'course.'.$env{'request.course.id'}.'.num'});
4087: $attachmenturls = $contrib{$idx.':attachmenturl'};
4088: }
4089: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4090: $attachmenturls,$attachmax{'text'},$toolarge);
4091: return OK;
4092: } elsif ($env{'form.export'}) {
4093: &Apache::loncommon::content_type($r,'text/html');
4094: $r->send_http_header;
4095: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4096: my $mode='board';
4097: my $status='OPEN';
4098: my $previous=$env{'form.previous'};
4099: if ($feedurl =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {
4100: $mode='problem';
4101: $status=$Apache::inputtags::status[-1];
4102: }
4103: my $discussion = &list_discussion($mode,$status,$symb);
4104: my $start_page =
4105: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4106: my $end_page =
4107: &Apache::loncommon::end_page();
4108: $r->print($start_page.$discussion.$end_page);
4109: return OK;
4110: } else {
4111: # ------------------------------------------------------------- Normal feedback
4112: my $feedurl=$env{'form.postdata'};
4113: $feedurl=~s/^https?\:\/\///;
4114: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4115: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4116: $feedurl=~s/\?.+$//;
4117:
4118: my $symb;
4119: if ($env{'form.replydisc'}) {
4120: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4121: } elsif ($env{'form.editdisc'}) {
4122: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4123: } elsif ($env{'form.origpage'}) {
4124: $symb="";
4125: } else {
4126: $symb=&Apache::lonnet::symbread($feedurl);
4127: }
4128: unless ($symb) {
4129: $symb=$env{'form.symb'};
4130: }
4131: if (defined($symb)) {
4132: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4133: } else {
4134: # backward compatibility (bulletin boards used to be 'wrapped')
4135: &Apache::lonenc::check_decrypt(\$feedurl);
4136: &dewrapper(\$feedurl);
4137: }
4138: my $goahead=1;
4139: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form|task)$/) {
4140: unless ($symb) { $goahead=0; }
4141: }
4142: if (!$goahead) {
4143: # Ambiguous Problem Resource
4144: $r->internal_redirect('/adm/ambiguous');
4145: return OK;
4146: }
4147: # Go ahead with feedback, no ambiguous reference
4148: unless (
4149: (
4150: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4151: )
4152: ||
4153: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4154: ||
4155: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4156: ) {
4157: &Apache::loncommon::content_type($r,'text/html');
4158: $r->send_http_header;
4159: # Unable to give feedback
4160: &Apache::lonenc::check_encrypt(\$feedurl);
4161: &no_redirect_back($r,$feedurl);
4162: return OK;
4163: }
4164: # --------------------------------------------------- Print login screen header
4165: unless ($env{'form.sendit'}) {
4166: &Apache::lonenc::check_encrypt(\$feedurl);
4167: &Apache::loncommon::content_type($r,'text/html');
4168: $r->send_http_header;
4169: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4170: my ($blocked,$blocktext) =
4171: &Apache::loncommon::blocking_status('boards');
4172: if ($blocked) {
4173: $r->print(&blocked_reply_or_edit($blocktext));
4174: return OK;
4175: }
4176: }
4177: my $options=&screen_header($feedurl,$symb,$group);
4178: if ($options) {
4179: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4180: } else {
4181: &fail_redirect($r,$feedurl);
4182: }
4183: return OK;
4184: }
4185:
4186: # Get previous user input
4187: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4188: $symb,$env{'user.name'},$env{'user.domain'},
4189: $env{'request.course.id'});
4190:
4191: # Get output from resource
4192: &Apache::lonenc::check_encrypt(\$feedurl);
4193: my $usersaw=&resource_output($feedurl);
4194:
4195: # Get resource answer (need to allow student to view grades for this to work)
4196: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4197: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4198: my $useranswer=
4199: &Apache::loncommon::get_student_answers(
4200: $usersymb,$env{'user.name'},$env{'user.domain'},
4201: $env{'request.course.id'});
4202: &Apache::lonnet::delenv('allowed.vgr');
4203: # Get attachments, if any, and not too large
4204: my $attachmenturl='';
4205: my $toolarge='';
4206: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4207: ($env{'form.replydisc'})) {
4208: my ($symb,$idx);
4209: if ($env{'form.replydisc'}) {
4210: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4211: } elsif ($env{'form.editdisc'}) {
4212: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4213: } elsif ($env{'form.origpage'}) {
4214: $symb = $env{'form.symb'};
4215: }
4216: &Apache::lonenc::check_decrypt(\$symb);
4217: my @currnewattach = ();
4218: my @deloldattach = ();
4219: my @keepold = ();
4220: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4221: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4222: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4223: } elsif ($env{'form.attachment.filename'}) {
4224: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4225: my $now = time;
4226: my $subdir = 'feedback/'.$now;
4227: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4228: } else {
4229: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4230: }
4231: }
4232: # Filter HTML out of message (could be nasty)
4233: my $override;
4234: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4235: $override = 1;
4236: }
4237: my $message=&clear_out_html($env{'form.comment'},$override);
4238:
4239:
4240: # Assemble email
4241: my ($email,$citations)=&assemble_email($message,$prevattempts,
4242: $usersaw,$useranswer);
4243:
4244: # Who gets this?
4245: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4246:
4247: # Actually send mail
4248: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4249: $feedurl,$email,$citations,
4250: $attachmenturl,$usersymb,%to);
4251:
4252: # Discussion? Store that.
4253: my $numpost=0;
4254: if ( ($env{'form.discuss'} ne ''
4255: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4256: || $env{'form.anondiscuss'} ne '') {
4257: my $subject = &clear_out_html($env{'form.subject'});
4258: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4259: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4260: $subject,$group);
4261: $numpost++;
4262: }
4263:
4264: # Add to blog?
4265:
4266: my $blog='';
4267: if ($env{'form.blog'}) {
4268: my $subject = &clear_out_html($env{'form.subject'});
4269: $status.=&Apache::lonrss::addentry($env{'user.name'},
4270: $env{'user.domain'},
4271: 'CourseBlog_'.$env{'request.course.id'},
4272: $subject,$message,$feedurl,'public');
4273: if (&Apache::loncommon::course_type() eq 'Community') {
4274: $blog='<br />'.&mt('Added to my community blog').'<br />';
4275: } else {
4276: $blog='<br />'.&mt('Added to my course blog').'<br />';
4277: }
4278: }
4279:
4280: # Receipt screen and redirect back to where came from
4281: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4282: }
4283: return OK;
4284: }
4285:
4286: sub blocked_reply_or_edit {
4287: my ($blocktext) = @_;
4288: return
4289: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4290: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4291: &mt('Back to previous page').
4292: &Apache::loncommon::end_page();
4293: }
4294:
4295: sub wrap_symb {
4296: my ($ressymb)=@_;
4297: if ($ressymb =~ /bulletin___\d+___/) {
4298: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4299: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4300: }
4301: }
4302: return $ressymb;
4303: }
4304: sub dewrapper {
4305: my ($feedurl)=@_;
4306: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4307: $$feedurl=~s|^/adm/wrapper||;
4308: }
4309: }
4310:
4311: sub get_feedurl {
4312: my ($symb)=@_;
4313: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4314: my $feedurl = &Apache::lonnet::clutter($url);
4315: &dewrapper(\$feedurl);
4316: return $feedurl;
4317: }
4318:
4319: sub get_feedurl_and_clean_symb {
4320: my ($symb)=@_;
4321: &Apache::lonenc::check_decrypt(\$symb);
4322: # backward compatibility (bulletin boards used to be 'wrapped')
4323: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4324: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4325: }
4326: my $feedurl = &get_feedurl($symb);
4327: return ($symb,$feedurl);
4328: }
4329:
4330: sub editing_allowed {
4331: my ($postid,$group) = @_;
4332: $postid = &unescape($postid);
4333: my $can_edit = 0;
4334: if ($group ne '') {
4335: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4336: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4337: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4338: if (&check_group_priv($group,'egp') eq 'ok') {
4339: $can_edit = 1;
4340: }
4341: return $can_edit;
4342: }
4343: }
4344: my $cid = $env{'request.course.id'};
4345: my $role = (split(/\./,$env{'request.role'}))[0];
4346: my $section = $env{'request.course.sec'};
4347: my $allow_editing_config =
4348: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4349: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4350: $can_edit = 1;
4351: } else {
4352: foreach my $editor (split(/,/,$allow_editing_config)) {
4353: my ($editor_role,$editor_sec) = split(/:/,$editor);
4354: if ($editor_role eq $role
4355: && defined($editor_sec)
4356: && defined($section)
4357: && $editor_sec eq $section) {
4358: $can_edit = 1;
4359: last;
4360: }
4361: if ($editor_role eq $role
4362: && !defined($editor_sec)) {
4363: $can_edit = 1;
4364: }
4365: }
4366: }
4367: return $can_edit;
4368: }
4369:
4370: sub check_group_priv {
4371: my ($group,$grp_priv) = @_;
4372: foreach my $priv ('mdg','vcg') {
4373: my $checkcourse = $env{'request.course.id'}.
4374: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4375: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4376: return 'ok';
4377: }
4378: }
4379: if ($grp_priv && $group ne '') {
4380: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4381: return 'ok';
4382: }
4383: }
4384: return '';
4385: }
4386:
4387: sub group_args {
4388: my ($group) = @_;
4389: if ($group eq '') { return ''; }
4390: my $extra_args = '&group='.$group;
4391: if (exists($env{'form.ref'})) {
4392: $extra_args .= '&ref='.$env{'form.ref'};
4393: }
4394: return $extra_args;
4395: }
4396:
4397: sub get_resource_title {
4398: my ($symb,$feedurl) = @_;
4399: my ($restitle,$plainurl);
4400: if (defined($symb)) {
4401: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4402: $restitle = &Apache::lonnet::gettitle($plain_symb);
4403: }
4404: if (defined($feedurl)) {
4405: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4406: }
4407: if (!defined($restitle)) {
4408: if (defined($feedurl)) {
4409: $restitle = &Apache::lonnet::gettitle($plainurl);
4410: }
4411: }
4412: if ($plainurl ne $feedurl) {
4413: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4414: if ($plain_filename eq $restitle) {
4415: $restitle = &mt('Untitled resource');
4416: }
4417: }
4418: if ($restitle eq '') {
4419: $restitle = &mt('Untitled resource');
4420: }
4421: return $restitle;
4422: }
4423:
4424: 1;
4425: __END__
4426:
4427:
4428: =pod
4429:
4430: =head1 NAME
4431:
4432: Apache::lonfeedback.pm
4433:
4434: =head1 SYNOPSIS
4435:
4436: Handles feedback from students to instructors and system administrators.
4437:
4438: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4439:
4440: Used by lonmsg.pm.
4441:
4442: This is part of the LearningOnline Network with CAPA project
4443: described at http://www.lon-capa.org.
4444:
4445: =head1 OVERVIEW
4446:
4447: None
4448:
4449: =head1 SUBROUTINES
4450:
4451: =over
4452:
4453: =item discussion_open()
4454:
4455: =item discussion_visible()
4456:
4457: =item list_discussion()
4458:
4459: =item send_feedback_link()
4460:
4461: =item send_message_link()
4462:
4463: =item action_links_bar()
4464:
4465: =item postingform_display()
4466:
4467: =item build_posting_display
4468:
4469: =item filter_regexp()
4470:
4471: =item get_post_contents()
4472:
4473: =item replicate_attachments()
4474:
4475: =item mail_screen()
4476:
4477: =item print_display_options()
4478:
4479: =item print_sortfilter_options()
4480:
4481: =item print_showposters()
4482:
4483: =item get_post_versions()
4484:
4485: =item get_post_attachments()
4486:
4487: =item fail_redirect()
4488:
4489: =item redirect_back()
4490:
4491: =item no_redirect_back()
4492:
4493: =item screen_header()
4494:
4495: =item resource_output()
4496:
4497: =item clear_out_html()
4498:
4499: =item assemble_email()
4500:
4501: =item feedback_available()
4502:
4503: =item send_msg()
4504:
4505: =item adddiscuss()
4506:
4507: =item get_discussion_info()
4508:
4509: =item show_preview()
4510:
4511: =item newline_to_br()
4512:
4513: =item tidy_html()
4514:
4515: =item generate_preview_button()
4516:
4517: =item modify_attachments()
4518:
4519: =item process_attachments()
4520:
4521: =item generate_attachments_button()
4522:
4523: =item extract_attachments()
4524:
4525: =item construct_attachmenturl()
4526:
4527: =item add_blog_checkbox()
4528:
4529: =item has_discussion()
4530:
4531: =item sort_filter_names()
4532:
4533: =item handler()
4534:
4535: =item blocked_reply_or_edit()
4536:
4537: =item wrap_symb()
4538:
4539: =item dewrapper()
4540:
4541: =item get_feedurl()
4542:
4543: =item get_feedurl_and_clean_symb()
4544:
4545: =item editing_allowed()
4546:
4547: =item check_group_priv()
4548:
4549: =item group_args()
4550:
4551: =item get_resource_title()
4552:
4553: =back
4554:
4555: =cut
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