1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.346 2012/03/16 02:59:01 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 (!$env{'request.role.adv'}) { return 0; }
80: }
81: }
82: return 1;
83: }
84:
85: sub discussion_vote_available {
86: my ($status,$symb)=@_;
87: my $canvote=&Apache::lonnet::EXT('resource.0.discussvote',$symb);
88: if ((lc($canvote) eq 'yes') ||
89: ((lc($canvote) eq 'notended') && (&discussion_open($status,$symb)))) {
90: return 1;
91: }
92: }
93:
94: sub get_realsymb {
95: my ($symb) = @_;
96: my $realsymb = $symb;
97: if ($symb=~/^bulletin___/) {
98: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
99: $filename=~s{^adm/wrapper/}{};
100: $realsymb=&Apache::lonnet::symbread($filename);
101: }
102: return $realsymb;
103: }
104:
105: sub list_discussion {
106: my ($mode,$status,$ressymb,$imsextras,$group)=@_;
107: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
108: unless ($ressymb) { return ''; }
109: $ressymb=&wrap_symb($ressymb);
110: my $outputtarget=$env{'form.grade_target'};
111: if (defined($env{'form.export'})) {
112: if($env{'form.export'}) {
113: $outputtarget = 'export';
114: }
115: }
116: if (defined($imsextras)) {
117: if ($$imsextras{'caller'} eq 'imsexport') {
118: $outputtarget = 'export';
119: }
120: }
121: if (not &discussion_visible($status)) {
122: if ($mode ne 'board') {
123: &Apache::lonenc::check_encrypt(\$ressymb);
124: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
125: }
126: }
127: if ($group ne '' && $mode eq 'board') {
128: if (&check_group_priv($group,'vgb') ne 'ok') {
129: return '';
130: }
131: }
132:
133: my ($blocked,$blocktext) =
134: &Apache::loncommon::blocking_status('boards');
135: if ($blocked) {
136: $blocktext = '<br /><div class="LC_feedback_link"><span class="LC_feedback_link">'.$blocktext."</span>";
137: &Apache::lonenc::check_encrypt(\$ressymb);
138: if ($mode ne 'board') {
139: $blocktext.=&send_message_link($ressymb).'</div>';
140: }else{
141: $blocktext.="</div>";
142: }
143: return $blocktext;
144: }
145:
146: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
147: my $discussiononly=0;
148: if ($mode eq 'board') { $discussiononly=1; }
149: unless ($env{'request.course.id'}) { return ''; }
150: my $crs='/'.$env{'request.course.id'};
151: my $cid=$env{'request.course.id'};
152: if ($env{'request.course.sec'}) {
153: $crs.='_'.$env{'request.course.sec'};
154: }
155: $crs=~s/\_/\//g;
156: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
157: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
158: && ($ressymb=~/$LONCAPA::assess_re/));
159:
160: my %usernamesort = ();
161: my %namesort =();
162: my %subjectsort = ();
163:
164: # Get discussion display settings for this discussion
165: my $lastkey = $ressymb.'_lastread';
166: my $showkey = $ressymb.'_showonlyunread';
167: my $markkey = $ressymb.'_showonlyunmark',
168: my $visitkey = $ressymb.'_visit';
169: my $ondispkey = $ressymb.'_markondisp';
170: my $userpickkey = $ressymb.'_userpick';
171: my $toggkey = $ressymb.'_readtoggle';
172: my $readkey = $ressymb.'_read';
173: $ressymb=$encsymb;
174: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
175: my %discinfo = ();
176: my $showonlyunread = 0;
177: my $showunmark = 0;
178: my $markondisp = 0;
179: my $prevread = 0;
180: my $previous = 0;
181: my $visit = 0;
182: my $newpostsflag = 0;
183: my @posters = split(/\&/,$dischash{$userpickkey});
184:
185: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
186: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
187: my $sortposts = $env{'form.sortposts'};
188: my $statusfilter = $env{'form.statusfilter'};
189: my @sectionpick = split(/,/,$env{'form.sectionpick'});
190: my @grouppick = split(/,/,$env{'form.grouppick'});
191: my @rolefilter = split(/,/,$env{'form.rolefilter'});
192:
193: my $totposters = $env{'form.totposters'};
194: $previous = $env{'form.previous'};
195: if ($previous > 0) {
196: $prevread = $previous;
197: } elsif (defined($dischash{$lastkey})) {
198: unless ($dischash{$lastkey} eq '') {
199: $prevread = $dischash{$lastkey};
200: }
201: }
202:
203: my $cdom = $env{'course.'.$cid.'.domain'};
204: my $cnum = $env{'course.'.$cid.'.num'};
205: my $crstype = &Apache::loncommon::course_type();
206:
207: # Get information about students and non-students in course for filtering display of posts
208: my %roleshash = ();
209: my %roleinfo = ();
210: my ($classgroups,$studentgroups);
211: if ($env{'form.rolefilter'}) {
212: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
213: foreach my $rolekey (keys(%roleshash)) {
214: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
215: if ($role =~ /^cr/) {
216: $role = 'cr';
217: }
218: my ($end,$start) = split(/:/,$roleshash{$rolekey});
219: my $now = time;
220: my $status = 'Active';
221: if (($now < $start) || ($end > 0 && $now > $end)) {
222: $status = 'Expired';
223: }
224: if ($uname && $udom) {
225: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
226: }
227: }
228: my ($classlist,$keylist) =
229: &Apache::loncoursedata::get_classlist($cdom,$cnum);
230: my $sec_index = &Apache::loncoursedata::CL_SECTION();
231: my $status_index = &Apache::loncoursedata::CL_STATUS();
232: while (my ($student,$data) = each %$classlist) {
233: my ($section,$status) = ($data->[$sec_index],
234: $data->[$status_index]);
235: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
236: }
237: ($classgroups,$studentgroups) =
238: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
239: $cdom,$cnum);
240: }
241:
242: # Get discussion display default settings for user
243: if ($env{'environment.discdisplay'} eq 'unread') {
244: $showonlyunread = 1;
245: }
246: if ($env{'environment.discmarkread'} eq 'ondisp') {
247: $markondisp = 1;
248: }
249:
250: # Override user's default if user specified display setting for this discussion
251: if (defined($dischash{$ondispkey})) {
252: unless ($dischash{$ondispkey} eq '') {
253: $markondisp = $dischash{$ondispkey};
254: }
255: }
256: if ($markondisp) {
257: $discinfo{$lastkey} = time;
258: }
259:
260: if (defined($dischash{$showkey})) {
261: unless ($dischash{$showkey} eq '') {
262: $showonlyunread = $dischash{$showkey};
263: }
264: }
265:
266: if (defined($dischash{$markkey})) {
267: unless ($dischash{$markkey} eq '') {
268: $showunmark = $dischash{$markkey};
269: }
270: }
271:
272: if (defined($dischash{$visitkey})) {
273: unless ($dischash{$visitkey} eq '') {
274: $visit = $dischash{$visitkey};
275: }
276: }
277: $visit ++;
278:
279: my $seeid;
280: if (($group ne '') && ($mode eq 'board') &&
281: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
282: if (&check_group_priv($group,'dgp') eq 'ok') {
283: $seeid = 1;
284: }
285: } else {
286: $seeid=&Apache::lonnet::allowed('rin',$crs);
287: }
288:
289: # Is voting on discussions available
290: my $realsymb = &get_realsymb($ressymb);
291: my $canvote = &discussion_vote_available($status,$realsymb);
292:
293: my @discussionitems=();
294: my %shown = ();
295: my @posteridentity=();
296:
297: my $current=0;
298: my $visible=0;
299: my @depth=();
300: my @replies = ();
301: my %alldiscussion=();
302: my %imsitems=();
303: my %imsfiles=();
304: my %notshown = ();
305: my %newitem = ();
306: my $maxdepth=0;
307: my %anonhash=();
308: my $anoncnt=0;
309:
310: my $now = time;
311: $discinfo{$visitkey} = $visit;
312:
313: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
314: &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,$canvote,$prevread,$sortposts,$encsymb,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
315:
316: my $discussion='';
317: my $manifestfile;
318: my $manifestok=0;
319: my $tempexport;
320: my $imsresources;
321: my $copyresult;
322:
323: my $function = &Apache::loncommon::get_users_function();
324: my %lt = &Apache::lonlocal::texthash(
325: 'cuse' => 'My settings for this discussion',
326: 'allposts' => 'All posts',
327: 'unread' => 'New posts only',
328: 'unmark' => 'Unread only',
329: 'ondisp' => 'Once displayed',
330: 'onmark' => 'Once marked not NEW',
331: 'toggoff' => 'Off',
332: 'toggon' => 'On',
333: 'disa' => 'Posts to be displayed',
334: 'npce' => 'Posts cease to be marked "NEW"',
335: 'epcb' => 'Each post can be toggled read/unread',
336: 'chgt' => 'Change',
337: 'disp' => 'Display',
338: 'nolo' => 'Not new',
339: 'togg' => 'Toggle read/unread',
340: 'aner' => 'An error occurred opening the manifest file.',
341: 'difo' => 'Discussion for',
342: 'aerr' => 'An error occurred opening the export file for posting',
343: 'aysu' => 'Are you sure you want to delete this post?',
344: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
345: 'bwco' => 'but will continue to be visible to your instructor',
346: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
347: 'discussions' => 'DISCUSSIONS'
348: );
349:
350: my $currdisp = $lt{'allposts'};
351: my $currmark = $lt{'onmark'};
352: my $currtogg = $lt{'toggoff'};
353: my $dispchange = $lt{'unread'};
354: my $markchange = $lt{'ondisp'};
355: my $toggchange = $lt{'toggon'};
356: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
357: my $displinkA = 'onlyunread';
358: my $displinkB = 'onlyunmark';
359: my $marklink = 'markondisp';
360: my $togglink = 'toggon';
361:
362: if ($markondisp) {
363: $currmark = $lt{'ondisp'};
364: $markchange = $lt{'onmark'};
365: $marklink = 'markonread';
366: }
367:
368: if ($showonlyunread) {
369: $currdisp = $lt{'unread'};
370: $dispchange = $lt{'allposts'};
371: $displinkA = 'allposts';
372: }
373:
374: if ($showunmark) {
375: $currdisp = $lt{'unmark'};
376: $dispchange = $lt{'unmark'};
377: $displinkA='allposts';
378: $displinkB='onlyunread';
379: $showonlyunread = 0;
380: }
381:
382: if ($dischash{$toggkey}) {
383: $currtogg = $lt{'toggon'};
384: $toggchange = $lt{'toggoff'};
385: $togglink = 'toggoff';
386: }
387:
388: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
389:
390: if ($newpostsflag) {
391: $chglink .= '&previous='.$prevread;
392: }
393: $chglink.=&group_args($group);
394:
395: if ($visible) {
396: # Print the discusssion
397: if ($outputtarget eq 'tex') {
398: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
399: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
400: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
401: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
402: } elsif ($outputtarget eq 'export') {
403: # Create temporary directory if this is an export
404: my $now = time;
405: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
406: $tempexport = $$imsextras{'tempexport'};
407: if (!-e $tempexport) {
408: mkdir($tempexport,0700);
409: }
410: $tempexport .= '/'.$$imsextras{'count'};
411: if (!-e $tempexport) {
412: mkdir($tempexport,0700);
413: }
414: } else {
415: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
416: if (!-e $tempexport) {
417: mkdir($tempexport,0700);
418: }
419: $tempexport .= '/'.$now;
420: if (!-e $tempexport) {
421: mkdir($tempexport,0700);
422: }
423: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
424: }
425: if (!-e $tempexport) {
426: mkdir($tempexport,0700);
427: }
428: # open manifest file
429: my $manifest = '/imsmanifest.xml';
430: my $manifestfilename = $tempexport.$manifest;
431: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
432: $manifestok=1;
433: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
434: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
435: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
436: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
437: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
438: <organizations default="$ressymb">
439: <organization identifier="$ressymb">
440: <title>$lt{'difo'} $ressymb</title>\n|;
441: } else {
442: $discussion .= $lt{'aner'}.'<br />';
443: }
444: } else {
445: my $colspan=$maxdepth+1;
446: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
447: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
448: var symbparm = symb+':::'+idx
449: var prevparm = ""
450: if (newflag == 1) {
451: prevparm = "&previous="+previous
452: }
453: if (caller == 'studentdelete') {
454: if (confirm("$lt{'aysu'}\\n$lt{'dpwn'},\\n$lt{'bwco'}")) {
455: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
456: }
457: } else {
458: if (caller == 'seeiddelete') {
459: if (confirm("$lt{'aysu'}\\n$lt{'depo'}")) {
460: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
461: }
462: }
463: }
464: }
465: |);
466: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
467: "\n".'<table width="100%" class="LC_discussion">';
468: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
469: $newpostsflag,$group,
470: $prevread,$markondisp);
471: my $escsymb=&escape($ressymb);
472: my $numhidden = keys(%notshown);
473: if ($numhidden > 0) {
474: my $colspan = $maxdepth+1;
475: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
476: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
477: if ($newpostsflag) {
478: $discussion .= '&previous='.$prevread;
479: }
480: $discussion .= &group_args($group);
481: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
482: $numhidden.' ';
483: if ($showunmark) {
484: $discussion .= &mt('posts previously marked read');
485: } else {
486: $discussion .= &mt('previously viewed posts');
487: }
488: $discussion .= '<br/></td></tr>';
489: }
490: }
491:
492: # Choose sort mechanism
493: my @showposts = ();
494: if ($sortposts eq 'descdate') {
495: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
496: } elsif ($sortposts eq 'thread') {
497: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
498: } elsif ($sortposts eq 'subject') {
499: foreach my $key (sort(keys(%subjectsort))) {
500: push(@showposts, @{$subjectsort{$key}});
501: }
502: } elsif ($sortposts eq 'username') {
503: foreach my $domain (sort(keys(%usernamesort))) {
504: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
505: push(@showposts, @{$usernamesort{$domain}{$key}});
506: }
507: }
508: } elsif ($sortposts eq 'lastfirst') {
509: foreach my $last (sort(keys(%namesort))) {
510: foreach my $key (sort(keys(%{$namesort{$last}}))) {
511: push(@showposts, @{$namesort{$last}{$key}});
512: }
513: }
514: } else {
515: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
516: }
517: my $currdepth = 0;
518: my $firstidx = $alldiscussion{$showposts[0]};
519: foreach my $post (@showposts) {
520: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
521: $alldiscussion{$post} = $post;
522: }
523: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
524: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
525: $discussion.="\n<tr>";
526: }
527: my $thisdepth=$depth[$alldiscussion{$post}];
528: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
529: for (1..$thisdepth) {
530: $discussion.='<td> </td>';
531: }
532: }
533: my $colspan=$maxdepth-$thisdepth+1;
534: if ($outputtarget eq 'tex') {
535: #cleanup block
536: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
537: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
538: my $threadinsert='';
539: if ($thisdepth > 0) {
540: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
541: }
542: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
543: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
544:
545: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
546: $discussion.=$discussionitems[$alldiscussion{$post}];
547: } elsif ($outputtarget eq 'export') {
548: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
549: if ($manifestok) {
550: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
551: print $manifestfile ' </item>'."\n";
552: }
553: $currdepth = $depth[$alldiscussion{$post}];
554: print $manifestfile "\n".
555: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
556: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
557: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
558: $imsresources .= "\n".
559: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
560: '<file href="'.$postfilename.'">'."\n".
561: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
562: '</resource>';
563: }
564: my $postingfile;
565: my $postingfilename = $tempexport.'/'.$postfilename;
566: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
567: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
568: $imsitems{$alldiscussion{$post}}{'title'}.' '.
569: $imsitems{$alldiscussion{$post}}{'sender'}.
570: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
571: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
572: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
573: close($postingfile);
574: } else {
575: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
576: }
577: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
578: } else {
579: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
580: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
581: '</td></tr>';
582: }
583: }
584: }
585: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
586: my $colspan=$maxdepth+1;
587: $discussion .= <<END;
588: <tr>
589: <td colspan="$colspan">
590: <table width="100%">
591: <tr>
592: <td class="LC_disc_action_left">
593: <font size="-1"><b>$lt{'cuse'}</b>:
594: END
595: if ($newpostsflag) {
596: $discussion .=
597: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
598: if ($dischash{$toggkey}) {
599: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
600: }
601: } else {
602: if ($dischash{$toggkey}) {
603: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
604: } else {
605: $discussion .=
606: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
607: }
608: }
609: $discussion .= <<END;
610: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
611: </td>
612: END
613: if ($sortposts) {
614: my %sort_types = ();
615: my %role_types = ();
616: my %status_types = ();
617: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
618:
619: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
620: if (defined($env{'form.totposters'})) {
621: $discussion .= &mt('Posts by').':';
622: if ($totposters > 0) {
623: foreach my $poster (@posters) {
624: $discussion .= ' '.$poster.',';
625: }
626: $discussion =~ s/,$//;
627: } else {
628: $discussion .= &mt('None selected');
629: }
630: } else {
631: my $filterchoice ='';
632: if (@sectionpick > 0) {
633: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
634: $filterchoice .= ' ';
635: }
636: if (@grouppick > 0) {
637: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
638: $filterchoice .= ' ';
639: }
640: if (@rolefilter > 0) {
641: $filterchoice .= '<i>'.&mt('roles').'</i>-';
642: foreach my $role (@rolefilter) {
643: $filterchoice .= ' '.$role_types{$role}.',';
644: }
645: $filterchoice =~ s/,$//;
646: $filterchoice .= '<br />'.(' ' x8);
647: }
648: if ($statusfilter) {
649: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
650: }
651: if ($filterchoice) {
652: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
653: }
654: }
655: $discussion .= '</font></td>';
656:
657: }
658: if ($dischash{$toggkey}) {
659: my $storebutton = &mt('Save read/unread changes');
660: $discussion.='<td align="right">'.
661: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
662: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
663: ' onclick="this.form.submit();" />'."\n".
664: '</td>';
665: }
666: $discussion .= (<<END);
667: </tr>
668: </table>
669: </td>
670: </tr>
671: END
672: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
673: $newpostsflag,$group,
674: $prevread,$markondisp);
675: $discussion .= "</table></form>\n";
676: }
677: if ($outputtarget eq 'export') {
678: if ($manifestok) {
679: while ($currdepth > 0) {
680: print $manifestfile " </item>\n";
681: $currdepth --;
682: }
683: print $manifestfile qq|
684: </organization>
685: </organizations>
686: <resources>
687: $imsresources
688: </resources>
689: </manifest>
690: |;
691: close($manifestfile);
692: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
693: $discussion = $copyresult;
694: } else {
695:
696: #Create zip file in prtspool
697:
698: my $imszipfile = '/prtspool/'.
699: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
700: time.'_'.rand(1000000000).'.zip';
701: my $cwd = &getcwd();
702: my $imszip = '/home/httpd/'.$imszipfile;
703: chdir $tempexport;
704: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
705: close(OUTPUT);
706: chdir $cwd;
707: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive','<a href="'.$imszipfile.'">').'</a><br />';
708: if ($copyresult) {
709: $discussion .= &mt('The following errors occurred during export').' - <br />'.$copyresult;
710: }
711: }
712: } else {
713: $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 />';
714: }
715: return $discussion;
716: }
717: }
718: if ($discussiononly) {
719: my $now = time;
720: my $attachnum = 0;
721: my $currnewattach = [];
722: my $currdelold = [];
723: my $comment = '';
724: my $subject = '';
725: if ($env{'form.origpage'}) {
726: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
727: $subject = &unescape($env{'form.subject'});
728: $comment = &unescape($env{'form.comment'});
729: my @keepold = ();
730: &process_attachments($currnewattach,$currdelold,\@keepold);
731: if (@{$currnewattach} > 0) {
732: $attachnum += @{$currnewattach};
733: }
734: }
735: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
736: if (($group ne '') && ($mode eq 'board')) {
737: if ((&check_group_priv($group,'pgd') eq 'ok') &&
738: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
739: $discussion .=
740: &postingform_display($mode,$ressymb,$now,$subject,
741: $comment,$outputtarget,$attachnum,
742: $currnewattach,$currdelold,
743: $group,$crstype);
744: }
745: } else {
746: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
747: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
748:
749: $discussion.=
750: &postingform_display($mode,$ressymb,$now,$subject,
751: $comment,$outputtarget,$attachnum,
752: $currnewattach,$currdelold,'',$crstype);
753: } else {
754: $discussion.= '<span class="LC_feedback_link">'.
755: &mt('This discussion is closed.').'</span>';
756: }
757: }
758: }
759: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
760: $discussion.= '<span class="LC_feedback_link">'.
761: &mt('This discussion is closed.').'</span>';
762: }
763: } elsif ($outputtarget ne 'tex') {
764: $discussion.='<div class="LC_feedback_link">';
765: if (&discussion_open($status) &&
766: &Apache::lonnet::allowed('pch',
767: $env{'request.course.id'}.
768: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
769: $discussion.= &send_feedback_link($ressymb);
770: if ($env{'request.role.adv'}) {
771: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
772: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
773: if (defined($close) && $close ne '' && $close < time) {
774: if ($canvote eq 'notended') {
775: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
776: &Apache::lonnet::plaintext('st',$crstype));
777: } else {
778: $discussion .= ' '.&mt('(Closed for [_1] roles)',
779: &Apache::lonnet::plaintext('st',$crstype));
780: }
781: }
782: }
783: } else {
784: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
785: }
786: $discussion.= &send_message_link($ressymb).'</div>';
787: }
788: return $discussion;
789: }
790:
791:
792: sub discussion_link {
793: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
794: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
795: if ($flag) { $link .= '&previous='.$prev; }
796: if ($adds) { $link .= $adds; }
797: my $width=600;
798: my $height=600;
799: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
800: $width=300;
801: $height=200;
802: }
803: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
804: }
805:
806:
807: sub send_feedback_link {
808: my ($ressymb) = @_;
809: return '<span class="LC_feedback_link">'.
810: &discussion_link($ressymb,
811: '<img alt="" class="LC_noBorder" src="'.
812: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
813: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
814: 'replydisc').
815: '</span>';
816: }
817:
818: sub send_message_link {
819: my ($ressymb) = @_;
820: my $output = '<span class="LC_message_link">'.
821: &discussion_link($ressymb,
822: '<img alt="" class="LC_noBorder" src="'.
823: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
824: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
825: 'sendmessageonly').
826: '</span>';
827: return $output;
828: }
829:
830: sub action_links_bar {
831: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp) = @_;
832: my $discussion = '<tr><td colspan="'.$colspan.'">'.
833: '<table width="100%"><tr>'.
834: '<td class="LC_disc_action_left">';
835: my $escsymb=&escape($ressymb);
836: if ($visible) {
837: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
838: if ($newpostsflag) {
839: $discussion .= '&previous='.$prevread;
840: }
841: $discussion .= &group_args($group);
842: $discussion .='">'.&mt('Threaded View').'</a> '.
843: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
844: if ($newpostsflag) {
845: $discussion .= '&previous='.$prevread;
846: }
847: $discussion .= &group_args($group);
848: $discussion .='">'.&mt('Chronological View').'</a> ';
849:
850: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
851: if ($newpostsflag) {
852: $otherviewurl .= '&previous='.$prevread;
853: }
854: $otherviewurl .= &group_args($group);
855: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
856: $discussion .= '<br />';
857: }
858: $discussion .='<a href="/adm/feedback?export='.$escsymb;
859: if ($newpostsflag) {
860: $discussion .= '&previous='.$prevread;
861: }
862: $discussion .= &group_args($group);
863: $discussion .= '">'.&mt('Export').'</a>';
864: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) {
865: $discussion .= ' ';
866: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
867: if ($newpostsflag) {
868: $discussion .= '&previous='.$prevread;
869: }
870: $discussion .= &group_args($group);
871: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
872: }
873: $discussion.='</td>';
874: if ($newpostsflag) {
875: if (!$markondisp) {
876: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
877: $discussion .= &group_args($group);
878: $discussion .= '">'.
879: &mt('My general preferences on what is marked as NEW').
880: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
881: $discussion .= &group_args($group);
882: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
883: } else {
884: $discussion .= '<td> </td>';
885: }
886: } else {
887: $discussion .= '<td> </td>';
888: }
889: $discussion .= '</tr></table></td></tr>';
890: return $discussion;
891: }
892:
893: sub postingform_display {
894: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
895: $currnewattach,$currdelold,$group,$crstype) = @_;
896: my $newattachmsg;
897: my %lt = &Apache::lonlocal::texthash(
898: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
899: 'title' => 'Title',
900: 'podi' => 'Post Discussion',
901: 'poan' => 'Post Anonymous Discussion',
902: 'newa' => 'New attachments',
903: );
904: if ($crstype eq 'Community') {
905: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
906: }
907: my ($postingform,$textareaclass);
908: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
909: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
910: $textareaclass = 'class="LC_richDefaultOff"';
911: if ($env{'request.course.id'}) {
912: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
913: undef($textareaclass);
914: }
915: }
916: }
917: $postingform .= (<<ENDDISCUSS);
918: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
919: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
920: <input type="hidden" name="sendit" value="true" />
921: <input type="hidden" name="timestamp" value="$now" />
922: <a name="newpost"></a>
923: <font size="1">$lt{'note'}</font><br />
924: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
925: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
926: ENDDISCUSS
927: if ($env{'form.origpage'}) {
928: $postingform .= '<input type="hidden" name="origpage" value="'.
929: $env{'form.origpage'}.'" />'."\n";
930: foreach my $att (@{$currnewattach}) {
931: $postingform .= '<input type="hidden" name="currnewattach" '.
932: 'value="'.$att.'" />'."\n";
933: }
934: }
935: if (exists($env{'form.ref'})) {
936: $postingform .= '<input type="hidden" name="ref" value="'.
937: $env{'form.ref'}.'" />';
938: }
939: if ($group ne '') {
940: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
941: }
942: my $blockblog = &Apache::loncommon::blocking_status('blogs');
943: if (!$blockblog) {
944: $postingform .= &add_blog_checkbox($crstype);
945: }
946: $postingform .= "</form>\n";
947: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
948: $now,$currnewattach,
949: $currdelold,'',$mode,
950: $blockblog);
951: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
952: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
953: if (@{$currnewattach} > 1) {
954: $newattachmsg .= '<ol>';
955: foreach my $item (@{$currnewattach}) {
956: $item =~ m#.*/([^/]+)$#;
957: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
958: }
959: $newattachmsg .= '</ol>'."\n";
960: } else {
961: $$currnewattach[0] =~ m#.*/([^/]+)$#;
962: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
963: }
964: }
965: $postingform .= $newattachmsg;
966: $postingform .= &generate_preview_button();
967: return $postingform;
968: }
969:
970: sub build_posting_display {
971: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$canvote,$prevread,$sortposts,$ressymb,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
972: my @original=();
973: my @index=();
974: my $skip_group_check = 0;
975: my $symb=&Apache::lonenc::check_decrypt($ressymb);
976: my $escsymb=&escape($ressymb);
977: # These are the discussion contributions
978: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
979: $env{'course.'.$env{'request.course.id'}.'.domain'},
980: $env{'course.'.$env{'request.course.id'}.'.num'});
981: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
982: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
983: if ($seeid || $canvote) {
984: # And these are the likes/unlikes
985: %likes=&Apache::lonnet::dump('disclikes',
986: $env{'course.'.$env{'request.course.id'}.'.domain'},
987: $env{'course.'.$env{'request.course.id'}.'.num'},
988: '^'.$symb.':');
989: # Array with likes to figure out averages, etc.
990: @theselikes=();
991: # Hashes containing likes and unlikes for this user.
992: %userlikes=();
993: %userunlikes=();
994: }
995: # Is the user allowed to see the real name behind anonymous postings?
996: my $see_anonymous =
997: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
998:
999: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1000: $skip_group_check = 1;
1001: }
1002: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1003: my (%deletions,%hiddens);
1004: if ($contrib{'deleted'}) {
1005: my $deleted = $contrib{'deleted'};
1006: $deleted =~ s/^\.//;
1007: $deleted =~ s/\.$//;
1008: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1009: }
1010: if ($contrib{'hidden'}) {
1011: my $hidden = $contrib{'hidden'};
1012: $hidden =~ s/^\.//;
1013: $hidden =~ s/\.$//;
1014: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1015: }
1016: # Versions if store/restore are used to actually store the messages.
1017: if ($contrib{'version'}) {
1018: my $oldest = $contrib{'1:timestamp'};
1019: if ($prevread eq '0') {
1020: $prevread = $oldest-1;
1021: }
1022: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1023: if ($sortposts) {
1024: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1025: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1026: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1027: }
1028: if ($seeid || $canvote) {
1029: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1030: for (my $id=1;$id<=$contrib{'version'};$id++) {
1031: my $idx=$id;
1032: next if ($contrib{$idx.':deleted'});
1033: next if ($contrib{$idx.':hidden'});
1034: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1035: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1036: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1037: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1038: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1039: $userlikes{$idx} = 1;
1040: }
1041: }
1042: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1043: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1044: $userunlikes{$idx} = 1;
1045: }
1046: }
1047: }
1048: }
1049: }
1050: # Figure out average likes and standard deviation if there are enough
1051: # discussions to warrant that
1052: my $ave=0;
1053: my $stddev=10000;
1054: if ($#theselikes>1) {
1055: my $sum=0;
1056: my $num=$#theselikes+1;
1057: foreach my $thislike (@theselikes) {
1058: $sum+=$thislike;
1059: }
1060: $ave=$sum/$num;
1061: my $sumsq=0;
1062: foreach my $thislike (@theselikes) {
1063: $sumsq+=($thislike-$ave)*($thislike-$ave);
1064: }
1065: $stddev=sqrt($sumsq/$num);
1066: }
1067: # Now we know the average likes $ave and the standard deviation $stddev
1068: # Get the boundaries for markup
1069: $oneplus=$ave+$stddev;
1070: $twoplus=$ave+2.*$stddev;
1071: $oneminus=$ave-$stddev;
1072: $twominus=$ave-2.*$stddev;
1073: }
1074: #
1075: # This is now the real loop. Go through all entries, pick up what we need
1076: #
1077: for (my $id=1;$id<=$contrib{'version'};$id++) {
1078: my $idx=$id;
1079: next if ($contrib{$idx.':deleted'});
1080: next if ($contrib{$idx.':hidden'});
1081: # If we get here, we are actually going to display the message - we don't know where and we don't know if we display
1082: # previous edits, but it counts as one entry
1083: my $posttime = $contrib{$idx.':timestamp'};
1084: if ($prevread <= $posttime) {
1085: $$newpostsflag = 1;
1086: }
1087: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1088: my $origindex='0.';
1089: my $numoldver=0;
1090: if ($contrib{$idx.':replyto'}) {
1091: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1092: # this is a follow-up message
1093: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1094: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1095: $origindex=$index[$contrib{$idx.':replyto'}];
1096: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1097: } else {
1098: $original[$idx]=0;
1099: $$depth[$idx]=0;
1100: }
1101: } else {
1102: # this is an original message
1103: $original[$idx]=0;
1104: $$depth[$idx]=0;
1105: }
1106: if ($$replies[$$depth[$idx]]) {
1107: $$replies[$$depth[$idx]]++;
1108: } else {
1109: $$replies[$$depth[$idx]]=1;
1110: }
1111: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx})) {
1112: $$visible++;
1113: if ($contrib{$idx.':history'}) {
1114: if ($contrib{$idx.':history'} =~ /:/) {
1115: my @oldversions = split(/:/,$contrib{$idx.':history'});
1116: $numoldver = @oldversions;
1117: } else {
1118: $numoldver = 1;
1119: }
1120: }
1121: $$current = $numoldver;
1122: my %messages = ();
1123: my %subjects = ();
1124: my %attachtxt = ();
1125: my %allattachments = ();
1126: my ($screenname,$plainname,$showaboutme);
1127: my $sender = &mt('Anonymous');
1128: # Anonymous users getting number within a discussion
1129: # Since idx is in static order, this should give the same sequence every time.
1130: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1131: unless ($$anonhash{$key}) {
1132: $anoncnt++;
1133: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1134: }
1135: my ($message,$subject,$vgrlink,$ctlink);
1136: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1137:
1138:
1139: # Set up for sorting by subject
1140: unless ($outputtarget eq 'export') {
1141: $message=$messages{$numoldver};
1142: $message.=$attachtxt{$numoldver};
1143: $subject=$subjects{$numoldver};
1144: if ($message) {
1145: if ($hiddens{$idx}) {
1146: $message='<font color="#888888">'.$message.'</font>';
1147: if ($studenthidden) {
1148: $message .='<br /><br />Deleted by poster (student).';
1149: }
1150: }
1151:
1152: if ($subject eq '') {
1153: if (defined($$subjectsort{'__No subject'})) {
1154: push(@{$$subjectsort{'__No subject'}}, $idx);
1155: } else {
1156: @{$$subjectsort{'__No subject'}} = ("$idx");
1157: }
1158: } else {
1159: if (defined($$subjectsort{$subject})) {
1160: push(@{$$subjectsort{$subject}}, $idx);
1161: } else {
1162: @{$$subjectsort{$subject}} = ("$idx");
1163: }
1164: }
1165: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1166: if ($showaboutme) {
1167: $sender = &Apache::loncommon::aboutmewrapper(
1168: $plainname,
1169: $contrib{$idx.':sendername'},
1170: $contrib{$idx.':senderdomain'});
1171: } else {
1172: $sender = $plainname;
1173: }
1174: if ($see_anonymous) {
1175: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1176: $contrib{$idx.':senderdomain'}.')';
1177: }
1178: $sender = '<b>'.$sender.'</b>';
1179: if ($contrib{$idx.':anonymous'}) {
1180: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1181: $screenname;
1182: }
1183: if ($see_anonymous) {
1184: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1185: }
1186: # Set up for sorting by domain, then username
1187: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1188: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1189: }
1190: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1191: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1192: } else {
1193: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1194: }
1195: # Set up for sorting by last name, then first name
1196: my %names = &Apache::lonnet::get('environment',
1197: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1198: ,$contrib{$idx.':sendername'});
1199: my $lastname = $names{'lastname'};
1200: my $firstname = $names{'firstname'};
1201: if ($lastname eq '') {
1202: $lastname = '_';
1203: }
1204: if ($firstname eq '') {
1205: $firstname = '_';
1206: }
1207: unless (defined($$namesort{$lastname})) {
1208: %{$$namesort{$lastname}} = ();
1209: }
1210: if (defined($$namesort{$lastname}{$firstname})) {
1211: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1212: } else {
1213: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1214: }
1215: if ($outputtarget ne 'tex') {
1216: # Add karma stars
1217: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1218: for (my $i=1;$i<=$karma;$i++) {
1219: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1220: }
1221: # Can people edit this?
1222: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1223: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1224: $sender.=' '.
1225: &discussion_link($symb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1226: unless ($seeid) {
1227: my $grpargs = &group_args($group);
1228: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1229: $sender .= '">'.&mt('Delete').'</a>';
1230: }
1231: }
1232: }
1233: if ($seeid) {
1234: if ($hiddens{$idx}) {
1235: unless ($studenthidden) {
1236: $sender.=' '.
1237: &discussion_link($symb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1238: }
1239: } else {
1240: $sender.=' '.
1241: &discussion_link($symb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1242: }
1243: my $grpargs = &group_args($group);
1244: $sender.=
1245: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1246: $sender .= &mt('Delete').'</a>';
1247: }
1248: }
1249: } else {
1250: if ($screenname) {
1251: $sender='<i>'.$screenname.'</i>';
1252: } else {
1253: $sender='<i>'.$$anonhash{$key}.'</i>';
1254: }
1255: $sender = '<b>'.$sender.'</b>';
1256: # Set up for sorting by domain, then username for anonymous
1257: unless (defined($$usernamesort{'__anon'})) {
1258: %{$$usernamesort{'__anon'}} = ();
1259: }
1260: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1261: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1262: } else {
1263: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1264: }
1265: # Set up for sorting by last name, then first name for anonymous
1266: unless (defined($$namesort{'__anon'})) {
1267: %{$$namesort{'__anon'}} = ();
1268: }
1269: if (defined($$namesort{'__anon'}{'__anon'})) {
1270: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1271: } else {
1272: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1273: }
1274: }
1275: if ($outputtarget ne 'tex') {
1276: if (&discussion_open($status)) {
1277: if (($group ne '') &&
1278: (&check_group_priv($group,'pgd') eq 'ok')) {
1279: $sender.=' '.
1280: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1281: } elsif (&Apache::lonnet::allowed('pch',
1282: $env{'request.course.id'}.
1283: ($env{'request.course.sec'}?'/'.
1284: $env{'request.course.sec'}:''))) {
1285: $sender.=' '.
1286: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1287: }
1288: }
1289: if ($viewgrades) {
1290: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1291: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1292: }
1293: if ($$dischash{$readkey}=~/\.$idx\./) {
1294: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1295: } else {
1296: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1297: }
1298: }
1299: }
1300: #figure out at what position this needs to print
1301: }
1302: if ($outputtarget eq 'export' || $message) {
1303: my $thisindex=$idx;
1304: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1305: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1306: }
1307: $$alldiscussion{$thisindex}=$idx;
1308: $$shown{$idx} = 0;
1309: $index[$idx]=$thisindex;
1310: }
1311: if ($outputtarget eq 'export') {
1312: %{$$imsitems{$idx}} = ();
1313: $$imsitems{$idx}{'isvisible'}='true';
1314: if ($hiddens{$idx}) {
1315: $$imsitems{$idx}{'isvisible'}='false';
1316: }
1317: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1318: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1319: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1320: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1321: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1322: $contrib{$idx.':sendername'}.':'.
1323: $contrib{$idx.':senderdomain'}.')';
1324: $$imsitems{$idx}{'isanonymous'}='false';
1325: if ($contrib{$idx.':anonymous'}) {
1326: $$imsitems{$idx}{'isanonymous'}='true';
1327: }
1328: $$imsitems{$idx}{'currversion'}=$numoldver;
1329: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1330: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1331: $$shown{$idx} = 1;
1332: }
1333: } else {
1334: if ($message) {
1335: my $spansize = 2;
1336: my ($uname,$udom);
1337: if ($showonlyunread && $prevread > $posttime) {
1338: $$notshown{$idx} = 1;
1339: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1340: $$notshown{$idx} = 1;
1341: } else {
1342: # apply filters
1343: $uname = $contrib{$idx.':sendername'};
1344: $udom = $contrib{$idx.':senderdomain'};
1345: my $poster = $uname.':'.$udom;
1346: if ($env{'form.totposters'} ne '') {
1347: if ($totposters == 0) {
1348: $$shown{$idx} = 0;
1349: } elsif ($totposters > 0) {
1350: if (grep/^$poster$/,@{$posters}) {
1351: $$shown{$idx} = 1;
1352: }
1353: }
1354: } elsif ($sortposts) {
1355: if ($skiptest) {
1356: $$shown{$idx} = 1;
1357: } else {
1358: foreach my $role (@{$$roleinfo{$poster}}) {
1359: if ($role =~ /^cc:/) {
1360: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1361: if ($role =~ /$cc_regexp/) {
1362: $$shown{$idx} = 1;
1363: last;
1364: }
1365: } elsif ($role =~ /^$rolematch$/) {
1366: $$shown{$idx} = 1;
1367: last;
1368: }
1369: }
1370: }
1371: if ($$shown{$idx} && !$skip_group_check) {
1372: my $showflag = 0;
1373: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1374: foreach my $grp (@{$grouppick}) {
1375: if (grep/^\Q$grp\E$/,
1376: keys(%{$$classgroups{$poster}{active}})) {
1377: $showflag = 1;
1378: last;
1379: }
1380: }
1381: }
1382: if ($showflag) {
1383: $$shown{$idx} = 1;
1384: } else {
1385: $$shown{$idx} = 0;
1386: }
1387: }
1388: } else {
1389: $$shown{$idx} = 1;
1390: }
1391: }
1392: unless ($$notshown{$idx} == 1) {
1393: if ($prevread > 0 && $prevread <= $posttime) {
1394: $$newitem{$idx} = 1;
1395: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1396: } else {
1397: $$newitem{$idx} = 0;
1398: }
1399: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1400: $sender.' '.$vgrlink.' ('.
1401: &Apache::lonlocal::locallocaltime($posttime).')';
1402: if ($$dischash{$toggkey}) {
1403: $$discussionitems[$idx].=' '.$ctlink;
1404: }
1405: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1406: my $likesize="100";
1407: if ($seeid || $canvote) {
1408: # Figure out size based on likes
1409: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1410: if ($thislikes>$twoplus) {
1411: $likesize="200";
1412: } elsif ($thislikes>$oneplus) {
1413: $likesize="150";
1414: }
1415: if ($thislikes<$twominus) {
1416: $likesize="50";
1417: } elsif ($thislikes<$oneminus) {
1418: $likesize="75";
1419: }
1420: }
1421: # Actually glue in the message itself
1422: $$discussionitems[$idx].= '<br /><blockquote>'.
1423: "<div style='font-size:$likesize%'>".
1424: $message.
1425: '</div></blockquote>';
1426: if ($canvote) {
1427: # Put in the like and unlike buttons
1428: if (($uname eq $env{'user.name'}) && ($udom eq $env{'user.domain'})) {
1429: my $novote = &mt('No voting for your own posts');
1430: $$discussionitems[$idx].=
1431: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1432: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1433: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1434: } else {
1435: if ($userlikes{$idx}) {
1436: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1437: } else {
1438: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1439: }
1440: if ($userunlikes{$idx}) {
1441: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1442: } else {
1443: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1444: }
1445: }
1446: }
1447: if ($seeid || $canvote) {
1448: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1449: if ($thislikes>0) {
1450: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1451: } elsif ($thislikes<0) {
1452: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1453: }
1454: }
1455: # If there is any history to this post, inform the reader
1456: if ($contrib{$idx.':history'}) {
1457: my @postversions = ();
1458: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1459: if ($seeid) {
1460: $$discussionitems[$idx] .= ' '.
1461: &discussion_link($symb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1462: }
1463: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1464: if ($contrib{$idx.':history'} =~ m/:/) {
1465: @postversions = split(/:/,$contrib{$idx.':history'});
1466: } else {
1467: @postversions = ("$contrib{$idx.':history'}");
1468: }
1469: for (my $i=0; $i<@postversions; $i++) {
1470: my $version = $i+1;
1471: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1472: }
1473: }
1474: # end of unless ($$notshown ...)
1475: }
1476: # end of if ($message) ...
1477: }
1478: # end of the else-branch of target being export
1479: }
1480: # end of unless hidden or deleted
1481: }
1482: # end of the loop over all discussion entries
1483: }
1484: # end of "if there actually are any discussions
1485: }
1486: # end of subroutine "build_posting_display"
1487: }
1488:
1489: sub filter_regexp {
1490: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1491: my ($roleregexp,$secregexp,$statusregexp);
1492: my $skiptest = 1;
1493: if (@{$rolefilter} > 0) {
1494: my @okrolefilter = ();
1495: foreach my $role (@{$rolefilter}) {
1496: unless ($role eq '') {
1497: push(@okrolefilter, $role);
1498: }
1499: }
1500: if (@okrolefilter > 0) {
1501: if (grep/^all$/,@okrolefilter) {
1502: $roleregexp='[^:]+';
1503: } else {
1504: if (@okrolefilter == 1) {
1505: $roleregexp=$okrolefilter[0];
1506: } else {
1507: $roleregexp='('.join('|',@okrolefilter).')';
1508: }
1509: $skiptest = 0;
1510: }
1511: }
1512: }
1513: if (@{$sectionpick} > 0) {
1514: my @oksectionpick = ();
1515: foreach my $sec (@{$sectionpick}) {
1516: unless ($sec eq '') {
1517: push(@oksectionpick, $sec);
1518: }
1519: }
1520: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1521: if (@oksectionpick == 1) {
1522: $secregexp = $oksectionpick[0];
1523: } else {
1524: $secregexp .= '('.join('|',@oksectionpick).')';
1525: }
1526: $skiptest = 0;
1527: } else {
1528: $secregexp .= '[^:]*';
1529: }
1530: }
1531:
1532: if (defined($statusfilter) && $statusfilter ne '') {
1533: if ($statusfilter eq 'all') {
1534: $statusregexp = '[^:]+';
1535: } else {
1536: $statusregexp = $statusfilter;
1537: $skiptest = 0;
1538: }
1539: }
1540: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1541: }
1542:
1543:
1544: sub get_post_contents {
1545: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1546: my $discussion = '';
1547: my $start=$numver;
1548: my $end=$numver + 1;
1549: %{$$imsfiles{$idx}}=();
1550: if ($type eq 'allversions') {
1551: unless($seeid) {
1552: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1553: return $discussion;
1554: }
1555: }
1556: # $$screenname=&Apache::loncommon::screenname(
1557: # $$contrib{$idx.':sendername'},
1558: # $$contrib{$idx.':senderdomain'});
1559: $$plainname=&Apache::loncommon::nickname(
1560: $$contrib{$idx.':sendername'},
1561: $$contrib{$idx.':senderdomain'});
1562: $$screenname=$$contrib{$idx.':screenname'};
1563: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1564: $$contrib{$idx.':senderdomain'},
1565: 'aboutme');
1566: my $sender = $$plainname;
1567: if ($$showaboutme) {
1568: $sender = &Apache::loncommon::aboutmewrapper(
1569: $$plainname,
1570: $$contrib{$idx.':sendername'},
1571: $$contrib{$idx.':senderdomain'});
1572: }
1573: if ($seeid) {
1574: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1575: $$contrib{$idx.':senderdomain'}.')';
1576: }
1577: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1578: my @postversions = ();
1579: if ($type eq 'allversions' || $type eq 'export') {
1580: $start = 0;
1581: if ($$contrib{$idx.':history'}) {
1582: @postversions = split(/:/,$$contrib{$idx.':history'});
1583: }
1584: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1585: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1586: push(@postversions,$$contrib{$idx.':timestamp'});
1587: $end = @postversions;
1588: } else {
1589: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1590: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1591: }
1592:
1593: if ($$contrib{$idx.':anonymous'}) {
1594: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1595: }
1596: if ($type eq 'allversions') {
1597: $discussion=('<b>'.$sender.'</b><br /><ul>');
1598: }
1599: for (my $i=$start; $i<$end; $i++) {
1600: my ($timesent,$attachmsg);
1601: my %currattach = ();
1602: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1603: unless (&contains_block_html($messages->{$i})) {
1604: &newline_to_br(\$messages->{$i});
1605: }
1606: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1607: $$subjects{$i}=~s/\n/\<br \/\>/g;
1608: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1609: if ($attachmenturls) {
1610: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1611: }
1612: if ($type eq 'export') {
1613: $$imsfiles{$idx}{$i} = '';
1614: if ($attachmsg) {
1615: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1616: foreach my $key (sort(keys(%currattach))) {
1617: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1618: my $fname = $1.$3.'/'.$4;
1619: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1620: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1621: }
1622: }
1623: }
1624: } else {
1625: if ($attachmsg) {
1626: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1627: } else {
1628: $$attachtxt{$i} = '';
1629: }
1630: }
1631: if ($type eq 'allversions') {
1632: $discussion.= <<"END";
1633: <li><b>$$subjects{$i}</b>, $timesent<br />
1634: $$messages{$i}<br />
1635: $$attachtxt{$i}</li>
1636: END
1637: }
1638: }
1639: if ($type eq 'allversions') {
1640: $discussion.='</ul>';
1641: return $discussion;
1642: } else {
1643: return;
1644: }
1645: }
1646:
1647: sub replicate_attachments {
1648: my ($attachrefs,$tempexport) = @_;
1649: my $response;
1650: foreach my $id (keys(%{$attachrefs})) {
1651: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1652: my $path = $tempexport;
1653: my $tail = $1.'/'.$2.$4;
1654: my @extras = split(/\//,$tail);
1655: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1656: if (!-e $destination) {
1657: my $i= 0;
1658: while ($i<@extras) {
1659: $path .= '/'.$extras[$i];
1660: if (!-e $path) {
1661: mkdir($path,0700);
1662: }
1663: $i ++;
1664: }
1665: my ($content,$rtncode);
1666: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1667: if ($uploadreply eq 'ok') {
1668: my $attachcopy;
1669: if ($attachcopy = Apache::File->new('>'.$destination)) {
1670: print $attachcopy $content;
1671: close($attachcopy);
1672: } else {
1673: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1674: }
1675: } else {
1676: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1677: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1678: }
1679: }
1680: }
1681: }
1682: return $response;
1683: }
1684:
1685: sub mail_screen {
1686: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1687: if (exists($env{'form.origpage'})) {
1688: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1689: }
1690:
1691: my %lt = &Apache::lonlocal::texthash(
1692: 'myqu' => 'Question/comment/feedback:',
1693: 'title' => 'Title',
1694: 'reta' => 'Retained attachments',
1695: 'atta' => 'Attachment',
1696: );
1697: if($env{'form.editdisc'} || $env{'form.replydisc'}){
1698: %lt = &Apache::lonlocal::texthash(
1699: 'myqu' => 'Post Discussion',
1700: );
1701: }
1702: my $restitle = &get_resource_title($caller_symb,$feedurl);
1703: my $quote='';
1704: my $subject = '';
1705: my $comment = '';
1706: my $prevtag = '';
1707: my $parentmsg = '';
1708: my ($symb,$idx,$attachmenturls);
1709: my $numoldver = 0;
1710: my $attachmsg = '';
1711: my $newattachmsg = '';
1712: my @currnewattach = ();
1713: my @currdelold = ();
1714: my @keepold = ();
1715: my %attachments = ();
1716: my %currattach = ();
1717: my $attachnum = 0;
1718: my $anonchk = (<<END);
1719: function anonchk() {
1720: for (var i=0; i < document.mailform.discuss.length; i++) {
1721: if (document.mailform.discuss[i].checked) {
1722: document.attachment.discuss.value =
1723: document.mailform.discuss[i].value;
1724: }
1725: }
1726: if (document.mailform.blog.checked) {
1727: document.attachment.blog.value = 1;
1728: }
1729: return
1730: }
1731: END
1732: my $anonscript;
1733: if (exists($env{'form.origpage'})) {
1734: $anonscript = (<<END);
1735: function setposttype() {
1736: var disc = "$env{'form.discuss'}";
1737: for (var i=0; i < document.mailform.discuss.length; i++) {
1738: if (disc == document.mailform.discuss[i].value) {
1739: document.mailform.discuss[i].checked = 1;
1740: }
1741: }
1742: var blog = "$env{'form.blog'}";
1743: if (blog == 1) {
1744: document.mailform.blog.checked=1;
1745: }
1746: return
1747: }
1748: END
1749: } else {
1750: $anonscript = (<<END);
1751: function setposttype() {
1752: return
1753: }
1754: END
1755: }
1756: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1757: if ($env{'form.replydisc'}) {
1758: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1759: } else {
1760: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1761: }
1762: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1763: $env{'course.'.$env{'request.course.id'}.'.domain'},
1764: $env{'course.'.$env{'request.course.id'}.'.num'});
1765: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1766: if ($contrib{$idx.':history'}) {
1767: if ($contrib{$idx.':history'} =~ /:/) {
1768: my @oldversions = split(/:/,$contrib{$idx.':history'});
1769: $numoldver = @oldversions;
1770: } else {
1771: $numoldver = 1;
1772: }
1773: }
1774: if ($env{'form.replydisc'}) {
1775: if ($contrib{$idx.':history'}) {
1776: if ($contrib{$idx.':history'} =~ /:/) {
1777: my @oldversions = split(/:/,$contrib{$idx.':history'});
1778: $numoldver = @oldversions;
1779: } else {
1780: $numoldver = 1;
1781: }
1782: }
1783: if ($idx > 0) {
1784: my %msgversions = ();
1785: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1786: $quote = $msgversions{$numoldver};
1787: }
1788: if ($idx > 0) {
1789: my %subversions = ();
1790: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1791: $subject = &mt('Re: ').$subversions{$numoldver};
1792: }
1793: $subject = &HTML::Entities::encode($subject,'<>&"');
1794: } else {
1795: $attachmenturls = $contrib{$idx.':attachmenturl'};
1796: if ($idx > 0) {
1797: my %msgversions = ();
1798: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1799: $comment = $msgversions{$numoldver};
1800: my %subversions = ();
1801: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1802: $subject = $subversions{$numoldver};
1803: }
1804: if (defined($contrib{$idx.':replyto'})) {
1805: $parentmsg = $contrib{$idx.':replyto'};
1806: }
1807: unless (exists($env{'form.origpage'})) {
1808: my $anonflag = 'nonanon';
1809: if ($contrib{$idx.':anonymous'}) {
1810: $anonflag = 'anon';
1811: }
1812: $anonscript = (<<END);
1813: function setposttype () {
1814: var currtype = "$anonflag";
1815: for (var i=0; i<document.mailform.discuss.length; i++) {
1816: if (document.mailform.elements.discuss[i].value == currtype ) {
1817: document.mailform.elements.discuss[i].checked=1;
1818: }
1819: }
1820: return
1821: }
1822: END
1823: }
1824: }
1825: }
1826: if ($env{'form.previous'}) {
1827: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1828: }
1829: }
1830:
1831: if ($env{'form.origpage'}) {
1832: $subject = &unescape($env{'form.subject'});
1833: $comment = &unescape($env{'form.comment'});
1834: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1835: }
1836: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1837: my $send=&mt('Send');
1838: my $alert = &mt('Please select a feedback type.');
1839: my $js= <<END;
1840: <script type="text/javascript">
1841: //<!--
1842: function gosubmit() {
1843: var rec=0;
1844: if (typeof(document.mailform.elements.discuss)!="undefined") {
1845: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1846: if (document.mailform.elements.discuss.checked ) {
1847: rec=1;
1848: }
1849: } else {
1850: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1851: if (document.mailform.elements.discuss[i].checked ) {
1852: rec=1;
1853: }
1854: }
1855: }
1856: }
1857: if (typeof(document.mailform.elements.blog)!="undefined") {
1858: if (document.mailform.elements.blog.checked) {
1859: rec=1;
1860: }
1861: }
1862:
1863: if (rec) {
1864: if (typeof(document.mailform.onsubmit)=='function') {
1865: document.mailform.onsubmit();
1866: }
1867: document.mailform.submit();
1868: } else {
1869: alert('$alert');
1870: }
1871: }
1872: $anonchk
1873: $anonscript
1874: //-->
1875: </script>
1876: END
1877:
1878: my ($textareaheader,$textareaclass);
1879: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1880: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1881: $textareaclass = 'class="LC_richDefaultOff"';
1882: if ($env{'request.course.id'}) {
1883: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1884: undef($textareaclass);
1885: }
1886: }
1887: }
1888:
1889: # Breadcrumbs
1890: my $brcrum = [{'href' => '',
1891: 'text' => 'Resource Feedback and Discussion'}];
1892:
1893: my %onload = ('onload' => 'window.focus();setposttype();');
1894: my %parms=('add_entries' => \%onload);
1895: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
1896: my $start_page=
1897: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
1898:
1899: if ($quote ne '') {
1900: $quote = &HTML::Entities::decode($quote);
1901: unless (&contains_block_html($quote)) {
1902: &newline_to_br(\$quote);
1903: }
1904: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($quote).'</blockquote>';
1905: }
1906: my $header='';
1907: unless ($env{'form.modal'}) {
1908: $header="<h2><tt>$restitle</tt></h2>";
1909: }
1910: $r->print(<<END);
1911: $start_page
1912: <h1>$lt{'myqu'}</h1>
1913: $header
1914: <form action="/adm/feedback" method="post" name="mailform"
1915: enctype="multipart/form-data">
1916: $prevtag
1917: <input type="hidden" name="postdata" value="$feedurl" />
1918: <input type="hidden" name="modal" value="$env{'form.modal'}" />
1919: END
1920: if ($env{'form.replydisc'}) {
1921: $r->print(<<END);
1922: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1923: END
1924: } elsif ($env{'form.editdisc'}) {
1925: $r->print(<<END);
1926: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1927: <input type="hidden" name="parentmsg" value="$parentmsg" />
1928: END
1929: }
1930: $r->print(<<END);
1931: $options
1932: $quote
1933: <p>
1934: $textareaheader
1935: </p>
1936: <br>
1937: <p>
1938: $latexHelp
1939: </p>
1940: <p>
1941: END
1942:
1943: $r->print(&Apache::lonhtmlcommon::start_pick_box());
1944: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
1945: $r->print('<input type="text" name="subject" size="30" value="'.
1946: $subject.'" /></p>');
1947: $r->print(&Apache::lonhtmlcommon::row_closure());
1948: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
1949: $r->print('<textarea name="comment" id="comment" cols="60" rows="10" '.
1950: $textareaclass.'>'.$comment.
1951: '</textarea>');
1952: $r->print(&Apache::lonhtmlcommon::row_closure(1));
1953: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1954:
1955: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1956: if ($env{'form.origpage'}) {
1957: foreach my $attach (@currnewattach) {
1958: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
1959: }
1960: foreach my $oldatt (@currdelold) {
1961: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
1962: }
1963: }
1964: if ($env{'form.editdisc'}) {
1965: if ($attachmenturls) {
1966: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1967: $attachnum = scalar(keys(%currattach));
1968: foreach my $key (keys(%currattach)) {
1969: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
1970: }
1971: }
1972: }
1973: } else {
1974: $r->print(<<END);
1975: <p>
1976: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
1977: </p>
1978: END
1979: }
1980: if (exists($env{'form.group'})) {
1981: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
1982: }
1983: if (exists($env{'form.ref'})) {
1984: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
1985: }
1986: $r->print(<<END);
1987: <p>
1988: <input type="hidden" name="sendit" value="1" />
1989: <input type="button" value="$send" onclick='gosubmit();' />
1990: </p>
1991: </form>
1992: END
1993: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
1994: my $now = time;
1995: my $ressymb = $symb;
1996: &Apache::lonenc::check_encrypt(\$ressymb);
1997: my $postidx = '';
1998: if ($env{'form.editdisc'}) {
1999: $postidx = $idx;
2000: }
2001: if (@currnewattach > 0) {
2002: $attachnum += @currnewattach;
2003: }
2004: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2005: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2006: if ($attachnum > 0) {
2007: if (@currnewattach > 0) {
2008: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2009: if (@currnewattach > 1) {
2010: $newattachmsg .= '<ol>';
2011: foreach my $item (@currnewattach) {
2012: $item =~ m#.*/([^/]+)$#;
2013: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2014: }
2015: $newattachmsg .= '</ol>'."\n";
2016: } else {
2017: $currnewattach[0] =~ m#.*/([^/]+)$#;
2018: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2019: }
2020: }
2021: if ($attachmsg) {
2022: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2023: }
2024: if ($newattachmsg) {
2025: $r->print("$newattachmsg<br />");
2026: }
2027: }
2028: }
2029: $r->print(&generate_preview_button().
2030: &Apache::loncommon::end_page());
2031:
2032: }
2033:
2034: sub print_display_options {
2035: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2036: &Apache::loncommon::content_type($r,'text/html');
2037: $r->send_http_header;
2038:
2039: my $function = &Apache::loncommon::get_users_function();
2040: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2041: $env{'user.domain'});
2042:
2043: my %lt = &Apache::lonlocal::texthash(
2044: 'pref' => 'Display Preference',
2045: 'curr' => 'Current setting ',
2046: 'actn' => 'Action',
2047: 'deff' => 'Default for all discussions',
2048: 'prca' => 'Preferences can be set for this discussion that determine ....',
2049: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2050: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2051: 'wipa' => 'Whether individual posts can be marked as read/unread',
2052: 'allposts' => 'All posts',
2053: 'unread' => 'New posts only',
2054: 'unmark' => 'Posts not marked read',
2055: 'ondisp' => 'Once displayed',
2056: 'onmark' => 'Once marked not NEW',
2057: 'toggon' => 'Shown',
2058: 'toggoff' => 'Not shown',
2059: 'disa' => 'Posts displayed?',
2060: 'npmr' => 'New posts cease to be identified as "NEW"?',
2061: 'dotm' => 'Option to mark each post as read/unread?',
2062: 'chgt' => 'Change to ',
2063: 'mkdf' => 'Set to ',
2064: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2065: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2066: );
2067:
2068: my $dispchangeA = $lt{'unread'};
2069: my $dispchangeB = $lt{'unmark'};
2070: my $markchange = $lt{'ondisp'};
2071: my $toggchange = $lt{'toggon'};
2072: my $currdisp = $lt{'allposts'};
2073: my $currmark = $lt{'onmark'};
2074: my $discdisp = 'allposts';
2075: my $discmark = 'onmark';
2076: my $currtogg = $lt{'toggoff'};
2077: my $disctogg = 'toggoff';
2078:
2079: if ($dispchgA eq 'allposts') {
2080: $dispchangeA = $lt{'allposts'};
2081: $currdisp = $lt{'unread'};
2082: $discdisp = 'unread';
2083: }
2084:
2085: if ($markchg eq 'markonread') {
2086: $markchange = $lt{'onmark'};
2087: $currmark = $lt{'ondisp'};
2088: $discmark = 'ondisp';
2089: }
2090:
2091: if ($dispchgB eq 'onlyunread') {
2092: $dispchangeB = $lt{'unread'};
2093: $currdisp = $lt{'unmark'};
2094: $discdisp = 'unmark';
2095: }
2096: if ($toggchg eq 'toggoff') {
2097: $toggchange = $lt{'toggoff'};
2098: $currtogg = $lt{'toggon'};
2099: $disctogg = 'toggon';
2100: }
2101:
2102: my $js = <<END;
2103: <script type="text/javascript">
2104: function discdispChk(caller) {
2105: var disctogg = '$toggchg'
2106: if (caller == 0) {
2107: if (document.modifydisp.discdisp[0].checked == true) {
2108: if (document.modifydisp.discdisp[1].checked == true) {
2109: document.modifydisp.discdisp[1].checked = false
2110: }
2111: }
2112: }
2113: if (caller == 1) {
2114: if (document.modifydisp.discdisp[1].checked == true) {
2115: if (document.modifydisp.discdisp[0].checked == true) {
2116: document.modifydisp.discdisp[0].checked = false
2117: }
2118: if (disctogg == 'toggon') {
2119: document.modifydisp.disctogg.checked = true
2120: }
2121: if (disctogg == 'toggoff') {
2122: document.modifydisp.disctogg.checked = false
2123: }
2124: }
2125: }
2126: if (caller == 2) {
2127: var dispchgB = '$dispchgB'
2128: if (disctogg == 'toggoff') {
2129: if (document.modifydisp.disctogg.checked == true) {
2130: if (dispchgB == 'onlyunmark') {
2131: document.modifydisp.discdisp[1].checked = false
2132: }
2133: }
2134: }
2135: }
2136: }
2137:
2138: function setDisp() {
2139: var prev = "$previous"
2140: var chktotal = 0
2141: if (document.modifydisp.discdisp[0].checked == true) {
2142: document.modifydisp.$dispchgA.value = "$symb"
2143: chktotal ++
2144: }
2145: if (document.modifydisp.discdisp[1].checked == true) {
2146: document.modifydisp.$dispchgB.value = "$symb"
2147: chktotal ++
2148: }
2149: if (document.modifydisp.discmark.checked == true) {
2150: document.modifydisp.$markchg.value = "$symb"
2151: chktotal ++
2152: }
2153: if (document.modifydisp.disctogg.checked == true) {
2154: document.modifydisp.$toggchg.value = "$symb"
2155: chktotal ++
2156: }
2157: if (chktotal > 0) {
2158: document.modifydisp.submit()
2159: } else {
2160: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2161: if (prev > 0) {
2162: location.href = "$feedurl?previous=$previous"
2163: } else {
2164: location.href = "$feedurl"
2165: }
2166: }
2167: }
2168: }
2169: </script>
2170: END
2171:
2172:
2173: my $start_page =
2174: &Apache::loncommon::start_page('Discussion display options',$js);
2175: my $end_page =
2176: &Apache::loncommon::end_page();
2177: $r->print(<<END);
2178: $start_page
2179: <form name="modifydisp" method="post" action="/adm/feedback">
2180: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2181: <br />
2182: END
2183: $r->print(&Apache::loncommon::start_data_table());
2184: $r->print(<<END);
2185: <tr>
2186: <th>$lt{'pref'}</td>
2187: <th>$lt{'curr'}</td>
2188: <th>$lt{'actn'}?</td>
2189: </tr>
2190: END
2191: $r->print(&Apache::loncommon::start_data_table_row());
2192: $r->print(<<END);
2193: <td>$lt{'disa'}</td>
2194: <td>$lt{$discdisp}</td>
2195: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2196: <br />
2197: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2198: </td>
2199: END
2200: $r->print(&Apache::loncommon::end_data_table_row());
2201: $r->print(&Apache::loncommon::start_data_table_row());
2202: $r->print(<<END);
2203: <td>$lt{'npmr'}</td>
2204: <td>$lt{$discmark}</td>
2205: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2206: END
2207: $r->print(&Apache::loncommon::end_data_table_row());
2208: $r->print(&Apache::loncommon::start_data_table_row());
2209: $r->print(<<END);
2210: <td>$lt{'dotm'}</td>
2211: <td>$lt{$disctogg}</td>
2212: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2213: END
2214: my $save = &mt('Save');
2215: $r->print(&Apache::loncommon::end_data_table_row());
2216: $r->print(&Apache::loncommon::end_data_table());
2217: $r->print(<<END);
2218: <br />
2219: <br />
2220: <input type="hidden" name="symb" value="$symb" />
2221: <input type="hidden" name="previous" value="$previous" />
2222: <input type="hidden" name="$dispchgA" value="" />
2223: <input type="hidden" name="$dispchgB" value="" />
2224: <input type="hidden" name="$markchg" value="" />
2225: <input type="hidden" name="$toggchg" value="" />
2226: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2227: END
2228: if (exists($env{'form.group'})) {
2229: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2230: }
2231: if (exists($env{'form.ref'})) {
2232: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2233: }
2234: $r->print("
2235: <br />
2236: <br />
2237: </form>
2238: $end_page
2239: ");
2240: return;
2241: }
2242:
2243: sub print_sortfilter_options {
2244: my ($r,$symb,$previous,$feedurl) = @_;
2245:
2246: &Apache::loncommon::content_type($r,'text/html');
2247: $r->send_http_header;
2248:
2249: &Apache::lonenc::check_encrypt(\$symb);
2250: my @sections;
2251: my $section_sel = '';
2252: my $numvisible = 5;
2253: my @groups;
2254: my $group_sel = '';
2255: my $numgroupvis = 5;
2256: my %sectioncount = &Apache::loncommon::get_sections();
2257: my @courseroles = qw(st ad ep ta in);
2258: my $crstype = &Apache::loncommon::course_type();
2259: my $ccrole = 'cc';
2260: if ($crstype eq 'Community') {
2261: $ccrole = 'co';
2262: }
2263: push(@courseroles,$ccrole);
2264:
2265: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2266: @sections = ('all',$env{'request.course.sec'});
2267: $numvisible = 2;
2268: } else {
2269: @sections = sort {$a cmp $b} keys(%sectioncount);
2270: if (scalar(@sections) < 4) {
2271: $numvisible = scalar(@sections) + 1;
2272: }
2273: unshift(@sections,'all'); # Put 'all' at the front of the list
2274:
2275: }
2276: foreach my $sec (@sections) {
2277: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2278: }
2279:
2280: if (&check_group_priv() eq 'ok') {
2281: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2282: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2283: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2284: @groups = sort {$a cmp $b} keys(%curr_groups);
2285: if (scalar(@groups) < 4) {
2286: $numgroupvis = scalar(@groups) + 1;
2287: }
2288: unshift(@groups,'all'); # Put 'all' at the front of the list
2289: } else {
2290: my @coursegroups = split(/:/,$env{'request.course.groups'});
2291: if (@coursegroups > 0) {
2292: @coursegroups = sort {$a cmp $b} @coursegroups;
2293: @groups = ('all',@coursegroups);
2294: if (scalar(@groups) < 4) {
2295: $numgroupvis = scalar(@groups) + 1;
2296: }
2297: } else {
2298: @groups = ('all');
2299: $numgroupvis = 1;
2300: }
2301: }
2302: foreach my $group (@groups) {
2303: $group_sel .= " <option value=\"$group\">$group</option>\n";
2304: }
2305:
2306: my $function = &Apache::loncommon::get_users_function();
2307: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2308: $env{'user.domain'});
2309: my %lt = &Apache::lonlocal::texthash(
2310: 'diop' => 'Display Options',
2311: 'curr' => 'Current setting ',
2312: 'actn' => 'Action',
2313: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2314: 'soor' => 'Sort order',
2315: 'spur' => 'Specific user roles',
2316: 'sprs' => 'Specific role status',
2317: 'spse' => 'Specific sections',
2318: 'spgr' => 'Specific groups',
2319: 'psub' => 'Pick specific users (by name)',
2320: 'shal' => 'Show a list of current posters',
2321: 'stor' => 'Save changes',
2322: );
2323:
2324: my %sort_types = ();
2325: my %role_types = ();
2326: my %status_types = ();
2327: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2328:
2329: my $js = <<END;
2330: <script type="text/javascript">
2331: function verifyFilter() {
2332: var rolenum = 0
2333: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2334: if (document.modifyshown.rolefilter.options[i].selected == true) {
2335: rolenum ++
2336: }
2337: }
2338: if (rolenum == 0) {
2339: document.modifyshown.rolefilter.options[0].selected = true
2340: }
2341:
2342: var secnum = 0
2343: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2344: if (document.modifyshown.sectionpick.options[i].selected == true) {
2345: secnum ++
2346: }
2347: }
2348: if (secnum == 0) {
2349: document.modifyshown.sectionpick.options[0].selected = true
2350: }
2351:
2352: var grpnum = 0
2353: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2354: if (document.modifyshown.grouppick.options[i].selected == true) {
2355: grpnum ++
2356: }
2357: }
2358: if (grpnum == 0) {
2359: document.modifyshown.grouppick.options[0].selected = true
2360: }
2361:
2362: document.modifyshown.submit();
2363: }
2364: </script>
2365: END
2366:
2367: my $start_page=
2368: &Apache::loncommon::start_page('Discussion options',$js);
2369: my $end_page=
2370: &Apache::loncommon::end_page();
2371:
2372: $r->print(<<END);
2373: $start_page
2374: <form name="modifyshown" method="post" action="/adm/feedback">
2375: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2376: <br />
2377: <table border="0">
2378: <tr>
2379: <th>$lt{'soor'}</th>
2380: <th> </th>
2381: <th>$lt{'sprs'}</th>
2382: <th> </th>
2383: <th>$lt{'spur'}</th>
2384: <th> </th>
2385: <th>$lt{'spse'}</th>
2386: <th> </th>
2387: <th>$lt{'spgr'}</th>
2388: <th> </th>
2389: <th>$lt{'psub'}</th>
2390: </tr>
2391: <tr>
2392: <td align="center" valign="top">
2393: <select name="sortposts">
2394: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2395: <option value="descdate">$sort_types{'descdate'}</option>
2396: <option value="thread">$sort_types{'thread'}</option>
2397: <option value="subject">$sort_types{'subject'}</option>
2398: <option value="username">$sort_types{'username'}</option>
2399: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2400: </select>
2401: </td>
2402: <td> </td>
2403: <td align="center" valign="top">
2404: <select name="statusfilter">
2405: <option value="all" selected="selected">$status_types{'all'}</option>
2406: <option value="Active">$status_types{'Active'}</option>
2407: <option value="Expired">$status_types{'Expired'}</option>
2408: <option value="Future">$status_types{'Future'}</option>
2409: </select>
2410: </td>
2411: <td> </td>
2412: <td align="center" valign="top">
2413: <select name="rolefilter" multiple="multiple" size="5">
2414: <option value="all">$role_types{'all'}</option>
2415: <option value="st">$role_types{'st'}</option>
2416: <option value="$ccrole">$role_types{$ccrole}</option>
2417: <option value="in">$role_types{'in'}</option>
2418: <option value="ta">$role_types{'ta'}</option>
2419: <option value="ep">$role_types{'ep'}</option>
2420: <option value="ad">$role_types{'ad'}</option>
2421: <option value="cr">$role_types{'cr'}</option>
2422: </select>
2423: </td>
2424: <td> </td>
2425: <td align="center" valign="top">
2426: <select name="sectionpick" multiple="multiple" size="$numvisible">
2427: $section_sel
2428: </select>
2429: </td>
2430: <td> </td>
2431: <td align="center" valign="top">
2432: <select name="grouppick" multiple="multiple" size="$numvisible">
2433: $group_sel
2434: </select>
2435: </td>
2436: <td> </td>
2437: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2438: </tr>
2439: </table>
2440: <br />
2441: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2442: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2443: <input type="hidden" name="previous" value="$previous" />
2444: <input type="hidden" name="applysort" value="$symb" />
2445: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2446: END
2447: if (exists($env{'form.group'})) {
2448: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2449: }
2450: if (exists($env{'form.ref'})) {
2451: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2452: }
2453: $r->print("
2454: <br />
2455: <br />
2456: </form>
2457: $end_page
2458: ");
2459: }
2460:
2461: sub print_showposters {
2462: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2463:
2464: &Apache::loncommon::content_type($r,'text/html');
2465: $r->send_http_header;
2466:
2467: &Apache::lonenc::check_encrypt(\$symb);
2468: my $crs='/'.$env{'request.course.id'};
2469: if ($env{'request.course.sec'}) {
2470: $crs.='_'.$env{'request.course.sec'};
2471: }
2472: $crs=~s/\_/\//g;
2473: my $seeid;
2474: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2475: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2476: my $group = $env{'form.group'};
2477: my $ressymb = &wrap_symb($symb);
2478: if (($group ne '') &&
2479: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
2480: if (&check_group_priv($group,'dgp') eq 'ok') {
2481: $seeid = 1;
2482: }
2483: } else {
2484: $seeid=&Apache::lonnet::allowed('rin',$crs);
2485: }
2486: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2487: $cdom,$cnum);
2488: my %namesort = ();
2489: my %postcounts = ();
2490:
2491: my %lt = &Apache::lonlocal::texthash(
2492: sele => 'Select',
2493: full => 'Fullname',
2494: usdo => 'Username:domain',
2495: post => 'Posts',
2496: );
2497: if ($contrib{'version'}) {
2498: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2499: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2500: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2501: unless ((($hidden) && (!$seeid)) || ($deleted)) {
2502: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2503: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2504: my $lastname = $names{'lastname'};
2505: my $firstname = $names{'firstname'};
2506: if ($lastname eq '') {
2507: $lastname = '_';
2508: }
2509: if ($firstname eq '') {
2510: $firstname = '_';
2511: }
2512: unless (defined($namesort{$lastname})) {
2513: %{$namesort{$lastname}} = ();
2514: }
2515: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2516: $postcounts{$poster} ++;
2517: if (defined($namesort{$lastname}{$firstname})) {
2518: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2519: push(@{$namesort{$lastname}{$firstname}}, $poster);
2520: }
2521: } else {
2522: @{$namesort{$lastname}{$firstname}} = ("$poster");
2523: }
2524: }
2525: }
2526: }
2527: }
2528:
2529: my $start_page = &Apache::loncommon::start_page('Discussion options');
2530: my $table_start =&Apache::loncommon::start_data_table();
2531: $r->print(<<END);
2532: $start_page
2533: <form name="pickpostersform" method="post">
2534: <br />
2535: $table_start
2536: <tr>
2537: <th>#</th>
2538: <th>$lt{'sele'}</th>
2539: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2540: <th>$lt{'post'}</th>
2541: </tr>
2542: END
2543: my $count = 0;
2544: foreach my $last (sort(keys(%namesort))) {
2545: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2546: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2547: my ($uname,$udom) = split(/:/,$user);
2548: if (!$uname || !$udom) {
2549: next;
2550: } else {
2551: $count ++;
2552: $r->print(&Apache::loncommon::start_data_table_row().
2553: '<td align="right">'.$count.'</td>
2554: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2555: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2556: <td>'.$postcounts{$user}.'</td>'.
2557: &Apache::loncommon::end_data_table_row());
2558: }
2559: }
2560: }
2561: }
2562: $r->print(&Apache::loncommon::end_data_table());
2563: my $end_page = &Apache::loncommon::end_page();
2564: $r->print(<<END);
2565: <br />
2566: <input type="hidden" name="sortposts" value="$sortposts" />
2567: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2568: <input type="hidden" name="userpick" value="$symb" />
2569: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2570: </form>
2571: $end_page
2572: END
2573: }
2574:
2575: sub get_post_versions {
2576: my ($versions,$incoming,$htmldecode,$numver) = @_;
2577: if ($incoming =~ /^<version num="0">/) {
2578: my $p = HTML::LCParser->new(\$incoming);
2579: my $done = 0;
2580:
2581: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2582: my $num = $token->[1]{num};
2583: my $text = $p->get_text("/version");
2584: if (defined($numver)) {
2585: if ($num == $numver) {
2586: if ($htmldecode) {
2587: $text = &HTML::Entities::decode($text);
2588: }
2589: $$versions{$numver}=$text;
2590: $done = 1;
2591: }
2592: } else {
2593: if ($htmldecode) {
2594: $text = &HTML::Entities::decode($text);
2595: }
2596: $$versions{$num}=$text;
2597: }
2598: }
2599: } else {
2600: if (!defined($numver)) {
2601: $numver = 0;
2602: }
2603: if ($htmldecode) {
2604: $$versions{$numver} = $incoming;
2605: } else {
2606: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2607: }
2608: }
2609: return;
2610: }
2611:
2612: sub get_post_attachments {
2613: my ($attachments,$attachmenturls) = @_;
2614: my $num;
2615: if ($attachmenturls =~ m/^<attachment id="0">/) {
2616: my $p = HTML::LCParser->new(\$attachmenturls);
2617: while (my $token = $p->get_tag("attachment","filename","post")) {
2618: if ($token->[0] eq "attachment") {
2619: $num = $token->[1]{id};
2620: %{$$attachments{$num}} =();
2621: } elsif ($token->[0] eq "filename") {
2622: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2623: } elsif ($token->[0] eq "post") {
2624: my $id = $token->[1]{id};
2625: $$attachments{$num}{$id} = $p->get_text("/post");
2626: }
2627: }
2628: } else {
2629: %{$$attachments{'0'}} = ();
2630: $$attachments{'0'}{'filename'} = $attachmenturls;
2631: $$attachments{'0'}{'0'} = 'n';
2632: }
2633:
2634: return;
2635: }
2636:
2637: sub fail_redirect {
2638: my ($r,$feedurl) = @_;
2639: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2640: my %lt = &Apache::lonlocal::texthash(
2641: 'sorr' => 'Sorry, no recipients ...',
2642: );
2643: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2644: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2645: {'redirect' => [2,$feedurl],
2646: 'only_body' => 1,}));
2647: $r->print(<<ENDFAILREDIR);
2648: <img align="right" src="$logo" />
2649: <b>$lt{'sorr'}</b>
2650: ENDFAILREDIR
2651: $r->print(&Apache::loncommon::end_page());
2652: }
2653:
2654: sub redirect_back {
2655: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2656: my $sorttag = '';
2657: my $roletag = '';
2658: my $statustag = '';
2659: my $sectag = '';
2660: my $grptag = '';
2661: my $userpicktag = '';
2662: my $qrystr = '';
2663: my $prevtag = '';
2664:
2665: &Apache::loncommon::content_type($r,'text/html');
2666: $r->send_http_header;
2667: &dewrapper(\$feedurl);
2668: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2669: if ($previous > 0) {
2670: $qrystr = 'previous='.$previous;
2671: if ($feedurl =~ /\?register=1/) {
2672: $feedurl .= '&'.$qrystr;
2673: } else {
2674: $feedurl .= '?'.$qrystr;
2675: }
2676: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2677: }
2678: if (defined($sort)) {
2679: my $sortqry = 'sortposts='.$sort;
2680: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2681: $feedurl .= '&'.$sortqry;
2682: } else {
2683: $feedurl .= '?'.$sortqry;
2684: }
2685: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2686: if (defined($numpicks)) {
2687: my $userpickqry = 'totposters='.$numpicks;
2688: $feedurl .= '&'.$userpickqry;
2689: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2690: } else {
2691: if (ref($sectionpick) eq 'ARRAY') {
2692: $feedurl .= '&sectionpick=';
2693: $sectag .= '<input type="hidden" name="sectionpick" value="';
2694: foreach my $sec (@{$sectionpick}) {
2695: $feedurl .= $sec.',';
2696: $sectag .= $sec.',';
2697: }
2698: $feedurl =~ s/,$//;
2699: $sectag =~ s/,$//;
2700: $sectag .= '" />';
2701: } else {
2702: $feedurl .= '&sectionpick='.$sectionpick;
2703: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2704: }
2705: if (ref($grouppick) eq 'ARRAY') {
2706: $feedurl .= '&grouppick=';
2707: $sectag .= '<input type="hidden" name="grouppick" value="';
2708: foreach my $grp (@{$grouppick}) {
2709: $feedurl .= $grp.',';
2710: $grptag .= $grp.',';
2711: }
2712: $feedurl =~ s/,$//;
2713: $grptag =~ s/,$//;
2714: $grptag .= '" />';
2715: } else {
2716: $feedurl .= '&grouppick='.$grouppick;
2717: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2718: }
2719: if (ref($rolefilter) eq 'ARRAY') {
2720: $feedurl .= '&rolefilter=';
2721: $roletag .= '<input type="hidden" name="rolefilter" value="';
2722: foreach my $role (@{$rolefilter}) {
2723: $feedurl .= $role.',';
2724: $roletag .= $role.',';
2725: }
2726: $feedurl =~ s/,$//;
2727: $roletag =~ s/,$//;
2728: $roletag .= '" />';
2729: } else {
2730: $feedurl .= '&rolefilter='.$rolefilter;
2731: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2732: }
2733: $feedurl .= '&statusfilter='.$statusfilter;
2734: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2735: }
2736: }
2737: my $grouptag;
2738: if ($group ne '') {
2739: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2740: my $refarg;
2741: if (exists($env{'form.ref'})) {
2742: $refarg = '&ref='.$env{'form.ref'};
2743: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2744: }
2745: if ($feedurl =~ /\?/) {
2746: $feedurl .= '&group='.$group.$refarg;
2747: } else {
2748: $feedurl .= '?group='.$group.$refarg;
2749: }
2750: }
2751: &Apache::lonenc::check_encrypt(\$feedurl);
2752: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2753: my %parms=('only_body' => 1);
2754: if ($env{'form.modal'}) {
2755: $parms{'add_entries'}={'onLoad' => 'document.forms.reldt.submit()'};
2756: } else {
2757: $parms{'redirect'}=[0,$feedurl];
2758: }
2759: my $start_page=
2760: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2761: my $end_page = &Apache::loncommon::end_page();
2762: $r->print(<<ENDREDIR);
2763: $start_page
2764: <img align="right" src="$logo" />
2765: $typestyle
2766: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2767: $blog
2768: $toolarge
2769: <font color="red">$status</font>
2770: <form name="reldt" action="$feedurl" target="loncapaclient">
2771: $prevtag
2772: $sorttag
2773: $statustag
2774: $roletag
2775: $sectag
2776: $grptag
2777: $userpicktag
2778: $grouptag
2779: </form>
2780: $end_page
2781: ENDREDIR
2782: }
2783:
2784: sub no_redirect_back {
2785: my ($r,$feedurl) = @_;
2786: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2787:
2788: my %onload;
2789:
2790: my %body_options = ('only_body' => 1,
2791: 'bgcolor' => '#FFFFFF',
2792: 'add_entries' => \%onload,);
2793:
2794: if ($feedurl !~ m{^/adm/feedback}) {
2795: $body_options{'redirect'} = [2,$feedurl];
2796: }
2797: my $start_page=
2798: &Apache::loncommon::start_page('Feedback not sent',undef,
2799: \%body_options);
2800:
2801: my $end_page = &Apache::loncommon::end_page();
2802:
2803: &Apache::lonenc::check_encrypt(\$feedurl);
2804: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2805: $r->print (<<ENDNOREDIRTWO);
2806: $start_page
2807: <img align="right" src="$logo" />
2808: <b>$nofeed</b>
2809: <br />
2810: $end_page
2811: ENDNOREDIRTWO
2812: }
2813:
2814: sub screen_header {
2815: my ($feedurl,$symb,$group) = @_;
2816: my $crscontent = &mt('Question/Comment/Feedback about course content');
2817: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2818: my $contribdisc = &mt('Contribution to course discussion of resource');
2819: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2820: my $namevis = &mt('name only visible to course faculty');
2821: my $crstype;
2822: if ($env{'request.course.id'}) {
2823: $crstype = &Apache::loncommon::course_type();
2824: if ($crstype eq 'Community') {
2825: $crscontent = &mt('Question/Comment/Feedback about community content');
2826: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2827: $contribdisc = &mt('Contribution to community discussion of resource');
2828: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2829: $namevis = &mt('name only visible to community facilitators');
2830: }
2831: }
2832: my $msgoptions='';
2833: my $discussoptions='';
2834: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2835: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2836: $msgoptions=
2837: '<label><input type="radio" name="discuss" value="author" /> '.
2838: &mt('Feedback to resource author').'</label><br />';
2839: }
2840: my %optionhash=();
2841: foreach my $type ('question','comment','policy') {
2842: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2843: }
2844: if (&feedback_available(1)) {
2845: $msgoptions.=
2846: '<label><input type="radio" name="discuss" value="question" /> '.
2847: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label><br />';
2848: }
2849: if (&feedback_available(0,1)) {
2850: $msgoptions.=
2851: '<label><input type="radio" name="discuss" value="course" /> '.
2852: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2853: '</label><br />';
2854: }
2855: if (&feedback_available(0,0,1)) {
2856: $msgoptions.=
2857: '<label><input type="radio" name="discuss" value="policy" /> '.
2858: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2859: '</label><br />';
2860: }
2861: }
2862: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2863: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2864: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2865: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2866: my $realsymb = &get_realsymb($symb);
2867: if (!$blocked && &discussion_open(undef,$realsymb) &&
2868: (&Apache::lonnet::allowed('pch',
2869: $env{'request.course.id'}.
2870: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2871: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2872: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2873: $contribdisc.
2874: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2875: $anoncontrib.
2876: ' <i>('.$namevis.')</i></label> '.
2877: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2878: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2879: if (!$blockblog) {
2880: $discussoptions.= &add_blog_checkbox($crstype);
2881: }
2882: }
2883: }
2884: if ($msgoptions) {
2885: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2886: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
2887: '<td>'.$msgoptions.'</td></tr>';
2888: }
2889: if ($discussoptions) {
2890: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2891: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
2892: '<td>'.$discussoptions.'</td></tr>';
2893: }
2894: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
2895: }
2896:
2897: sub resource_output {
2898: my ($feedurl) = @_;
2899: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2900: $usersaw=~s/\<body[^\>]*\>//gi;
2901: $usersaw=~s/\<\/body\>//gi;
2902: $usersaw=~s/\<html\>//gi;
2903: $usersaw=~s/\<\/html\>//gi;
2904: $usersaw=~s/\<head\>//gi;
2905: $usersaw=~s/\<\/head\>//gi;
2906: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2907: return $usersaw;
2908: }
2909:
2910: sub clear_out_html {
2911: my ($message,$override)=@_;
2912: # Always allow the <m>-tag
2913: my %html=(M=>1);
2914: # Check if more is allowed
2915: my $cid=$env{'request.course.id'};
2916: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2917: ($override)) {
2918: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2919: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2920: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2921: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2922: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2923: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2924: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2925: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2926: }
2927: # Do the substitution of everything that is not explicitly allowed
2928: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2929: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2930: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2931: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2932: return $message;
2933: }
2934:
2935: sub assemble_email {
2936: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2937: my %lt = &Apache::lonlocal::texthash(
2938: 'prev' => 'Previous attempts of student (if applicable)',
2939: 'orig' => 'Original screen output (if applicable)',
2940: 'corr' => 'Correct Answer(s) (if applicable)',
2941: );
2942: if (&Apache::loncommon::course_type() eq 'Community') {
2943: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2944: }
2945: my $email=<<"ENDEMAIL";
2946: $message
2947: ENDEMAIL
2948: my $citations=<<"ENDCITE";
2949: <h2>$lt{'prev'}</h2>
2950: $prevattempts
2951: <br /><hr />
2952: <h2>$lt{'orig'}</h2>
2953: $usersaw
2954: <h2>$lt{'corr'}</h2>
2955: $useranswer
2956: ENDCITE
2957: return ($email,$citations);
2958: }
2959:
2960:
2961: sub feedback_available {
2962: my ($question,$course,$policy)=@_;
2963: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2964: $course,$policy);
2965: return scalar(%to);
2966: }
2967:
2968: sub send_msg {
2969: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2970: my $status='';
2971: my $sendsomething=0;
2972: my $restitle = &get_resource_title($symb,$feedurl);
2973: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2974: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2975: foreach my $key (keys(%to)) {
2976: if ($key) {
2977: my ($user,$domain) = split(/\:/,$key,2);
2978: if (!defined($user)) {
2979: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
2980: } elsif (!defined($domain)) {
2981: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
2982: } else {
2983: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
2984: $title.' ['.$restitle.']',$email,$citations,$feedurl,
2985: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
2986: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
2987: } else {
2988: $sendsomething++;
2989: }
2990: }
2991: }
2992: }
2993:
2994: # Records of number of feedback messages are kept under the "symb" called "_feedback"
2995: # There are two entries within the framework of a course:
2996: # - the URLs for which feedback was provided
2997: # - the total number of contributions
2998: if ($sendsomething) {
2999: my %record=&getfeedbackrecords();
3000: my ($temp)=keys(%record);
3001: unless ($temp=~/^error\:/) {
3002: my %newrecord=();
3003: $newrecord{'resource'}=$feedurl;
3004: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3005: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3006: $status.='<br />'.&mt('Not registered').'<br />';
3007: }
3008: }
3009: }
3010: return ($status,$sendsomething);
3011: }
3012:
3013: # Routine to get the complete feedback records
3014:
3015: sub getfeedbackrecords {
3016: my ($uname,$udom,$course)=@_;
3017: unless ($uname) { $uname=$env{'user.name'}; }
3018: unless ($udom) { $udom=$env{'user.domain'}; }
3019: unless ($course) { $course=$env{'request.course.id'}; }
3020: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3021: return %record;
3022: }
3023:
3024: # Routine to get feedback statistics
3025:
3026: sub getfeedbackstats {
3027: my %record=&getfeedbackrecords(@_);
3028: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3029: }
3030:
3031: # Store feedback credit
3032:
3033: sub storefeedbackpoints {
3034: my ($points,$uname,$udom,$course)=@_;
3035: unless ($points) { $points=0; }
3036: unless ($uname) { $uname=$env{'user.name'}; }
3037: unless ($udom) { $udom=$env{'user.domain'}; }
3038: unless ($course) { $course=$env{'request.course.id'}; }
3039: my %record=('grader_user' => $env{'user.name'},
3040: 'grader_domain' => $env{'user.domain'},
3041: 'points' => $points);
3042: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3043: }
3044:
3045: # Store feedback "likes"
3046:
3047: sub storefeedbacklikes {
3048: my ($likes,$uname,$udom,$course)=@_;
3049: unless ($likes) { $likes=0; }
3050: if ($likes>0) { $likes=1; }
3051: if ($likes<0) { $likes=-1; }
3052: unless ($uname) { $uname=$env{'user.name'}; }
3053: unless ($udom) { $udom=$env{'user.domain'}; }
3054: unless ($course) { $course=$env{'request.course.id'}; }
3055: my %record=&getfeedbackrecords($uname,$udom,$course);
3056: my $totallikes=$record{'totallikes'};
3057: $totallikes+=$likes;
3058: my %newrecord=('likes_user' => $env{'user.name'},
3059: 'likes_domain' => $env{'user.domain'},
3060: 'likes' => $likes,
3061: 'totallikes' => $totallikes);
3062: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3063: }
3064:
3065:
3066: sub adddiscuss {
3067: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3068: my $status='';
3069: my $realsymb = &get_realsymb($symb);
3070: my ($cnum,$cdom);
3071: if ($env{'request.course.id'}) {
3072: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3073: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3074: }
3075: if (&discussion_open(undef,$realsymb) &&
3076: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3077: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3078: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3079: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3080:
3081: my %contrib=('message' => $email,
3082: 'sendername' => $env{'user.name'},
3083: 'senderdomain' => $env{'user.domain'},
3084: 'screenname' => $env{'environment.screenname'},
3085: 'plainname' => $env{'environment.firstname'}.' '.
3086: $env{'environment.middlename'}.' '.
3087: $env{'environment.lastname'}.' '.
3088: $env{'enrironment.generation'},
3089: 'attachmenturl'=> $attachmenturl,
3090: 'subject' => $subject);
3091: if ($env{'form.replydisc'}) {
3092: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3093: }
3094: if ($anon) {
3095: $contrib{'anonymous'}='true';
3096: }
3097: if (($symb) && ($email)) {
3098: my $now = time;
3099: if ($env{'form.editdisc'}) {
3100: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3101: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3102: $contrib{'timestamp'} = $now;
3103: $contrib{'history'} = '';
3104: my $numoldver = 0;
3105: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3106: &Apache::lonenc::check_decrypt(\$oldsymb);
3107: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3108: # get timestamp for last post and history
3109: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3110: $env{'course.'.$env{'request.course.id'}.'.domain'},
3111: $env{'course.'.$env{'request.course.id'}.'.num'});
3112: if (defined($oldcontrib{$oldidx.':replyto'})) {
3113: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3114: }
3115: if (defined($oldcontrib{$oldidx.':history'})) {
3116: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3117: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3118: $numoldver = @oldversions;
3119: } else {
3120: $numoldver = 1;
3121: }
3122: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3123: }
3124: my $numnewver = $numoldver + 1;
3125: if (defined($oldcontrib{$oldidx.':subject'})) {
3126: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3127: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3128: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3129: } else {
3130: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3131: }
3132: }
3133: if (defined($oldcontrib{$oldidx.':message'})) {
3134: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3135: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3136: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3137: } else {
3138: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3139: }
3140: }
3141: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3142: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3143: $oldsymb,$oldidx,\%contrib,
3144: $env{'course.'.$env{'request.course.id'}.'.domain'},
3145: $env{'course.'.$env{'request.course.id'}.'.num'});
3146: $status='Editing class discussion'.($anon?' (anonymous)':'');
3147: } else {
3148: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3149: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3150: $env{'course.'.$env{'request.course.id'}.'.domain'},
3151: $env{'course.'.$env{'request.course.id'}.'.num'});
3152: }
3153: my %storenewentry=($symb => $now);
3154: $status.='<br />'.&mt('Updating discussion time').': '.
3155: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3156: $env{'course.'.$env{'request.course.id'}.'.domain'},
3157: $env{'course.'.$env{'request.course.id'}.'.num'});
3158: }
3159: my %record=&getdiscussionrecords();
3160: my ($temp)=keys(%record);
3161: unless ($temp=~/^error\:/) {
3162: my %newrecord=();
3163: $newrecord{'resource'}=$symb;
3164: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3165: $status.='<br />'.&mt('Registering').': '.
3166: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3167: &updatekarma();
3168: }
3169: } else {
3170: $status.='Failed.';
3171: }
3172: return $status.'<br />';
3173: }
3174:
3175:
3176: # Routine to get the complete discussion records
3177:
3178: sub getdiscussionrecords {
3179: my ($uname,$udom,$course)=@_;
3180: unless ($uname) { $uname=$env{'user.name'}; }
3181: unless ($udom) { $udom=$env{'user.domain'}; }
3182: unless ($course) { $course=$env{'request.course.id'}; }
3183: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3184: return %record;
3185: }
3186:
3187: # Routine to get discussion statistics
3188:
3189: sub getdiscussionstats {
3190: my %record=&getdiscussionrecords(@_);
3191: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$record{'totalvotes'});
3192: }
3193:
3194: # Calculate discussion karma
3195:
3196: sub calcdiscussionkarma {
3197: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3198: my $karma=0;
3199: if ($votes>0) {
3200: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3201: if ($karma<0) { $karma=0; }
3202: if ($karma>5) { $karma=5; }
3203: }
3204: return $karma;
3205: }
3206:
3207: # Update karma
3208:
3209: sub updatekarma {
3210: my ($uname,$udom,$course)=@_;
3211: unless ($uname) { $uname=$env{'user.name'}; }
3212: unless ($udom) { $udom=$env{'user.domain'}; }
3213: unless ($course) { $course=$env{'request.course.id'}; }
3214: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3215: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3216: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3217: return $karma;
3218: }
3219:
3220: # Retrieve karma
3221:
3222: sub userkarma {
3223: my ($uname,$udom,$course)=@_;
3224: unless ($uname) { $uname=$env{'user.name'}; }
3225: unless ($udom) { $udom=$env{'user.domain'}; }
3226: unless ($course) { $course=$env{'request.course.id'}; }
3227: my $hashkey=$uname.':'.$udom.':'.$course;
3228: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3229: if ($cached) {
3230: return $karma;
3231: }
3232: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3233: $karma=$userdisc{'karma'};
3234: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3235: return $karma;
3236: }
3237:
3238: # Store discussion credit
3239:
3240: sub storediscussionpoints {
3241: my ($points,$uname,$udom,$course)=@_;
3242: unless ($points) { $points=0; }
3243: unless ($uname) { $uname=$env{'user.name'}; }
3244: unless ($udom) { $udom=$env{'user.domain'}; }
3245: unless ($course) { $course=$env{'request.course.id'}; }
3246: my %record=('grader_user' => $env{'user.name'},
3247: 'grader_domain' => $env{'user.domain'},
3248: 'points' => $points);
3249: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3250: }
3251:
3252: # Store discussion "likes"
3253:
3254: sub storediscussionlikes {
3255: my ($likes,$uname,$udom,$course)=@_;
3256: unless ($likes) { $likes=0; }
3257: if ($likes>0) { $likes=1; }
3258: if ($likes<0) { $likes=-1; }
3259: unless ($uname) { $uname=$env{'user.name'}; }
3260: unless ($udom) { $udom=$env{'user.domain'}; }
3261: unless ($course) { $course=$env{'request.course.id'}; }
3262: my %record=&getdiscussionrecords($uname,$udom,$course);
3263: my $totallikes=$record{'totallikes'};
3264: my $totalvotes=$record{'totalvotes'};
3265: $totallikes+=$likes;
3266: $totalvotes++;
3267: my %newrecord=('likes_user' => $env{'user.name'},
3268: 'likes_domain' => $env{'user.domain'},
3269: 'likes' => $likes,
3270: 'totallikes' => $totallikes,
3271: 'totalvotes' => $totalvotes);
3272: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3273: if ($status eq 'ok') {
3274: &updatekarma($uname,$udom,$course);
3275: }
3276: return $status;
3277: }
3278:
3279: sub get_discussion_info {
3280: my ($idx,%contrib) = @_;
3281: my $changelast = 0;
3282: my $count = 0;
3283: my $hiddenflag = 0;
3284: my $deletedflag = 0;
3285: my ($hidden,$deleted,%info,$newlastdisc);
3286: my $version = $contrib{'version'};
3287: if ($version) {
3288: for (my $id=$version; $id>0; $id--) {
3289: my $vkeys=$contrib{$id.':keys'};
3290: my @keys=split(/:/,$vkeys);
3291: if (grep(/^hidden$/,@keys)) {
3292: if (!$hiddenflag) {
3293: $hidden = $contrib{$id.':hidden'};
3294: $hiddenflag = 1;
3295: }
3296: } elsif (grep(/^deleted$/,@keys)) {
3297: if (!$deletedflag) {
3298: $deleted = $contrib{$id.':deleted'};
3299: $deletedflag = 1;
3300: }
3301: } else {
3302: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3303: $count++;
3304: $info{$count}{'id'} = $id;
3305: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3306: }
3307: }
3308: }
3309: if ($info{'1'}{'id'} == $idx) {
3310: $changelast = 1;
3311: if ($count > 1) {
3312: $newlastdisc = $info{'2'}{'timestamp'};
3313: } else {
3314: $newlastdisc = 0;
3315: }
3316: }
3317: }
3318: return ($changelast,$newlastdisc);
3319: }
3320:
3321: # ----------------------------------------------------------- Preview function
3322:
3323: sub show_preview {
3324: my ($r) = @_;
3325: &Apache::loncommon::content_type($r,'text/html');
3326: $r->send_http_header;
3327: my $start_page=
3328: &Apache::loncommon::start_page('Preview',undef,
3329: {'only_body' => 1,});
3330:
3331: my $message=&clear_out_html($env{'form.comment'});
3332: &newline_to_br(\$message);
3333: $message=&Apache::lonspeller::markeduptext($message);
3334: $message=&Apache::lontexconvert::msgtexconverted($message);
3335: my $subject=&clear_out_html($env{'form.subject'});
3336: $subject=~s/\n/\<br \/\>/g;
3337: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3338:
3339: my $end_page = &Apache::loncommon::end_page();
3340:
3341: $r->print($start_page
3342: .'<h1>'.&mt('Preview').'</h1>'
3343: .&Apache::lonhtmlcommon::start_pick_box()
3344: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3345: .$subject
3346: .&Apache::lonhtmlcommon::row_closure()
3347: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3348: .$message
3349: .&Apache::lonhtmlcommon::row_closure(1)
3350: .&Apache::lonhtmlcommon::end_pick_box()
3351: .$end_page
3352: );
3353: }
3354:
3355: sub contains_block_html {
3356: my ($message)=@_;
3357: return ($message =~ m{
3358: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3359: \s*
3360: (\w+\=['"]\w+['"])*
3361: \s*
3362: (
3363: \s*/>|
3364: >.*</\1\s*>
3365: )}xs
3366: );
3367: }
3368:
3369: sub tidy_html {
3370: my ($message)=@_;
3371: # my $tidy = HTML::Tidy::libXML->new();
3372: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3373: # $xhtml =~ m/<body>(.*)<\/body>/is;
3374: # my $clean = $1;
3375: # # remove any empty block-level tags
3376: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3377: # $message=$clean;
3378: return $message;
3379: }
3380:
3381: sub newline_to_br {
3382: my ($message)=@_;
3383: my $newmessage;
3384: my $parser=HTML::LCParser->new($message);
3385: while (my $token=$parser->get_token()) {
3386: if ($token->[0] eq 'T') {
3387: my $text=$token->[1];
3388: $text=~s/\n/\<br \/\>/g;
3389: $newmessage.=$text;
3390: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3391: $newmessage.=$token->[1];
3392: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3393: $newmessage.=$token->[2];
3394: } elsif ($token->[0] eq 'S') {
3395: $newmessage.=$token->[4];
3396: }
3397:
3398: }
3399: $$message=$newmessage;
3400: }
3401:
3402: sub generate_preview_button {
3403: my ($formname,$fieldname)=@_;
3404: unless ($formname) { $formname='mailform'; }
3405: unless ($fieldname) { $fieldname='comment'; }
3406: my $pre=&mt("Show Preview and Check Spelling");
3407: return(<<ENDPREVIEW);
3408: <br />
3409: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3410: <input type="hidden" name="subject" />
3411: <input type="hidden" name="comment" />
3412: <input type="button" value="$pre"
3413: 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();" />
3414: </form>
3415: ENDPREVIEW
3416: }
3417:
3418: sub modify_attachments {
3419: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3420: $attachmaxtext,$toolarge)=@_;
3421:
3422: my %lt = &Apache::lonlocal::texthash(
3423: 'subj' => 'Subject',
3424: 'chth' => 'Check the checkboxes for any you wish to remove.',
3425: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3426: 'adda' => 'Add a new attachment to this post',
3427: 'stch' => 'Save Changes',
3428: 'clic' => 'Add/remove attachments',
3429: );
3430: my $js = <<END;
3431: <script type="text/javascript">
3432: function setAction () {
3433: document.modattachments.action = document.modattachments.origpage.value;
3434: document.modattachments.submit();
3435: }
3436: </script>
3437: END
3438:
3439: # Breadcrumbs
3440: my $brcrum = [{'href' => '',
3441: 'text' => 'Discussion Post Attachments'}];
3442: my %parms=('only_body' => 1);
3443: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3444:
3445: my $start_page =
3446: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3447:
3448: my $orig_subject = &unescape($env{'form.subject'});
3449: my $subject=&clear_out_html($orig_subject);
3450: $subject=~s/\n/\<br \/\>/g;
3451: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3452: my $timestamp=$env{'form.timestamp'};
3453: my $numoldver=$env{'form.numoldver'};
3454:
3455: my $msg = '';
3456: my %attachments = ();
3457: my %currattach = ();
3458: if ($idx) {
3459: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3460: }
3461: &Apache::lonenc::check_encrypt(\$symb);
3462:
3463: my $end_page =
3464: &Apache::loncommon::end_page();
3465:
3466: $r->print(<<END);
3467: $start_page
3468: $toolarge
3469: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3470: <br />
3471: <h1>$lt{'clic'}</h1>
3472: END
3473: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3474: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3475: $r->print('<b>'.$subject.'</b>');
3476: $r->print(&Apache::lonhtmlcommon::row_closure());
3477: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3478: $r->print('<input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" /> '.$attachmaxtext);
3479: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3480: $r->print(&Apache::lonhtmlcommon::row_closure());
3481: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3482: if ($idx) {
3483: if ($attachmenturls) {
3484: my @currold = keys(%currattach);
3485: if (@currold > 0) {
3486: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3487: foreach my $id (@currold) {
3488: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3489: $attachurl =~ m#/([^/]+)$#;
3490: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3491: }
3492: $r->print("<br />");
3493: }
3494: }
3495: }
3496: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3497: $r->print($lt{'chth'}.'<br />'."\n");
3498: foreach my $attach (@{$currnewattach}) {
3499: $attach =~ m#/([^/]+)$#;
3500: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3501: }
3502: }
3503: }
3504: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3505: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3506: $r->print(<<END);
3507: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3508: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3509: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3510: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3511: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3512: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3513: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3514: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3515: END
3516: foreach my $item (@{$currnewattach}) {
3517: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3518: }
3519: foreach my $item (@{$currdelold}) {
3520: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3521: }
3522: $r->print(<<END);
3523: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3524: </form>
3525: $end_page
3526: END
3527: return;
3528: }
3529:
3530: sub process_attachments {
3531: my ($currnewattach,$currdelold,$keepold) = @_;
3532:
3533: @{$currnewattach}=
3534: &Apache::loncommon::get_env_multiple('form.currnewattach');
3535: @{$currdelold}=
3536: &Apache::loncommon::get_env_multiple('form.deloldattach');
3537: if (exists($env{'form.delnewattach'})) {
3538: my @currdelnew =
3539: &Apache::loncommon::get_env_multiple('form.delnewattach');
3540: my @currnew = ();
3541: foreach my $newone (@{$currnewattach}) {
3542: my $delflag = 0;
3543: foreach my $item (@currdelnew) {
3544: if ($newone eq $item) {
3545: $delflag = 1;
3546: last;
3547: }
3548: }
3549: unless ($delflag) {
3550: push(@currnew, $newone);
3551: }
3552: }
3553: @{$currnewattach} = @currnew;
3554: }
3555: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3556: }
3557:
3558: sub generate_attachments_button {
3559: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3560: $numoldver,$mode,$blockblog) = @_;
3561: my $origpage = $ENV{'REQUEST_URI'};
3562: my $att=$attachnum.' '.&mt("attachments");
3563: my %lt = &Apache::lonlocal::texthash(
3564: 'clic' => 'Add/remove attachments',
3565: );
3566: my $response = (<<END);
3567: <br />
3568: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3569: <input type="button" value="$lt{'clic'}"
3570: 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);
3571: END
3572: if (!$blockblog) {
3573: $response .= 'setblogvalue();';
3574: }
3575: unless ($mode eq 'board') {
3576: $response .= 'javascript:anonchk();';
3577: }
3578: $response .= (<<ENDATTACH);
3579: this.form.submit();" />
3580: <input type="hidden" name="origpage" value="$origpage" />
3581: <input type="hidden" name="idx" value="$idx" />
3582: <input type="hidden" name="timestamp" value="$now" />
3583: <input type="hidden" name="subject" />
3584: <input type="hidden" name="comment" />
3585: <input type="hidden" name="blog" value="0" />
3586: <input type="hidden" name="discuss" value="0" />
3587: <input type="hidden" name="numoldver" value="$numoldver" />
3588: ENDATTACH
3589: if (defined($deloldattach)) {
3590: if (@{$deloldattach} > 0) {
3591: foreach my $delatt (@{$deloldattach}) {
3592: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3593: }
3594: }
3595: }
3596: if (defined($currnewattach)) {
3597: if (@{$currnewattach} > 0) {
3598: foreach my $attach (@{$currnewattach}) {
3599: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3600: }
3601: }
3602: }
3603: $response .= '</form>';
3604: return $response;
3605: }
3606:
3607: sub extract_attachments {
3608: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3609: %{$attachments}=();
3610: &get_post_attachments($attachments,$attachmenturls);
3611: foreach my $id (sort(keys(%{$attachments}))) {
3612: if (exists($$attachments{$id}{$numoldver})) {
3613: if (defined($currdelold)) {
3614: if (@{$currdelold} > 0) {
3615: unless (grep/^$id$/,@{$currdelold}) {
3616: $$currattach{$id} = $$attachments{$id}{$numoldver};
3617: }
3618: } else {
3619: $$currattach{$id} = $$attachments{$id}{$numoldver};
3620: }
3621: } else {
3622: $$currattach{$id} = $$attachments{$id}{$numoldver};
3623: }
3624: }
3625: }
3626: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3627: if (@attached == 1) {
3628: my $id = $attached[0];
3629: my $attachurl;
3630: if ($attachmenturls =~ m/^<attachment id="0">/) {
3631: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3632: } else {
3633: $attachurl = $$attachments{$id}{'filename'};
3634: }
3635: $attachurl=~m|/([^/]+)$|;
3636: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3637: $1.'</tt></a><br />';
3638: &Apache::lonnet::allowuploaded('/adm/feedback',
3639: $attachurl);
3640: } elsif (@attached > 1) {
3641: $$message.='<ol>';
3642: foreach my $attach (@attached) {
3643: my $id = $attach;
3644: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3645: my ($fname)
3646: =($attachurl=~m|/([^/]+)$|);
3647: $$message .= '<li><a href="'.$attachurl.
3648: '"><tt>'.
3649: $fname.'</tt></a></li>';
3650: &Apache::lonnet::allowuploaded('/adm/feedback',
3651: $attachurl);
3652: }
3653: $$message .= '</ol>';
3654: }
3655: }
3656:
3657: sub construct_attachmenturl {
3658: my ($currnewattach,$keepold,$symb,$idx)=@_;
3659: my $oldattachmenturl;
3660: my $newattachmenturl;
3661: my $startnum = 0;
3662: my $currver = 0;
3663: if (($env{'form.editdisc'}) && ($idx)) {
3664: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3665: $env{'course.'.$env{'request.course.id'}.'.domain'},
3666: $env{'course.'.$env{'request.course.id'}.'.num'});
3667: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3668: if ($contrib{$idx.':history'}) {
3669: if ($contrib{$idx.':history'} =~ /:/) {
3670: my @oldversions = split(/:/,$contrib{$idx.':history'});
3671: $currver = 1 + scalar(@oldversions);
3672: } else {
3673: $currver = 2;
3674: }
3675: } else {
3676: $currver = 1;
3677: }
3678: if ($oldattachmenturl) {
3679: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3680: my %attachments = ();
3681: my $prevver = $currver-1;
3682: &get_post_attachments(\%attachments,$oldattachmenturl);
3683: my $numattach = scalar(keys(%attachments));
3684: $startnum += $numattach;
3685: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3686: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3687: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3688: unless ($item eq 'filename') {
3689: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3690: }
3691: }
3692: if (grep/^$num$/,@{$keepold}) {
3693: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3694: }
3695: $newattachmenturl .= '</attachment>';
3696: }
3697: } else {
3698: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3699: unless (grep/^0$/,@{$keepold}) {
3700: $newattachmenturl .= '<post id="1">n</post>';
3701: }
3702: $newattachmenturl .= '</attachment>';
3703: $startnum ++;
3704: }
3705: }
3706: }
3707: for (my $i=0; $i<@{$currnewattach}; $i++) {
3708: my $attachnum = $startnum + $i;
3709: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3710: }
3711: return $newattachmenturl;
3712: }
3713:
3714: sub add_blog_checkbox {
3715: my ($crstype) = @_;
3716: my $checkstatus;
3717: if ($env{'form.blog'}) {
3718: $checkstatus = 'checked="checked"';
3719: }
3720: my $output = '
3721: <script type="text/javascript">
3722: function setblogvalue() {
3723: if (document.mailform.blog.checked) {
3724: document.attachment.blog.value = 1;
3725: } else {
3726: document.attachment.blog.value = 0;
3727: }
3728: }
3729: </script><br />
3730: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3731: if ($crstype eq 'Community') {
3732: $output .= &mt('Add to my public community blog');
3733: } else {
3734: $output .= &mt('Add to my public course blog');
3735: }
3736: $output .= '</label><br />'."\n";
3737: return $output;
3738: }
3739:
3740: sub has_discussion {
3741: my $resourcesref = shift;
3742: my $navmap = Apache::lonnavmaps::navmap->new();
3743: if (defined($navmap)) {
3744: my @allres=$navmap->retrieveResources();
3745: foreach my $resource (@allres) {
3746: if ($resource->hasDiscussion()) {
3747: my $ressymb = $resource->wrap_symb();
3748: if (ref($resourcesref) eq 'ARRAY') {
3749: push(@{$resourcesref}, $ressymb);
3750: }
3751: }
3752: }
3753: } else {
3754: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3755: }
3756: return;
3757: }
3758:
3759: sub sort_filter_names {
3760: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3761: if (ref($sort_types) eq 'HASH') {
3762: %{$sort_types} = (
3763: ascdate => 'Date order - oldest first',
3764: descdate => 'Date order - newest first',
3765: thread => 'Threaded',
3766: subject => 'By subject',
3767: username => 'By domain and username',
3768: lastfirst => 'By last name, first name'
3769: );
3770: }
3771: my @courseroles = qw(st in ta ep ad);
3772: if ($crstype eq 'Community') {
3773: push(@courseroles,'co');
3774: } else {
3775: push(@courseroles,'cc');
3776: }
3777: if (ref($role_types) eq 'HASH') {
3778: foreach my $role (@courseroles) {
3779: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3780: }
3781: $role_types->{'all'} = 'All roles';
3782: $role_types->{'cr'} = 'Custom role';
3783: }
3784: if (ref($status_types) eq 'HASH') {
3785: %{$status_types} = (
3786: all => 'Roles of any status',
3787: Active => 'Only active roles',
3788: Expired => 'Only past roles',
3789: Future => 'Only future roles',
3790: );
3791: }
3792: }
3793:
3794: sub handler {
3795: my $r = shift;
3796: if ($r->header_only) {
3797: &Apache::loncommon::content_type($r,'text/html');
3798: $r->send_http_header;
3799: return OK;
3800: }
3801:
3802: # --------------------------- Get query string for limited number of parameters
3803:
3804: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3805: ['like','unlike','modal','hide','unhide','deldisc','undeleteall','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']);
3806: my $group = $env{'form.group'};
3807: my %attachmax = (
3808: text => &mt('(128 KB max size)'),
3809: num => 131072,
3810: );
3811: if ($env{'form.editdisc'}) {
3812: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
3813: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3814: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3815: my $feedurl=&Apache::lonnet::clutter($url);
3816: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3817: undef,undef,undef,$group);
3818: return OK;
3819: }
3820: }
3821: if ($env{'form.discsymb'}) {
3822: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3823: my $readkey = $symb.'_read';
3824: my $chgcount = 0;
3825: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3826: foreach my $key (keys(%env)) {
3827: if ($key =~ m/^form\.postunread_(\d+)/) {
3828: if ($readinghash{$readkey} =~ /\.$1\./) {
3829: $readinghash{$readkey} =~ s/\.$1\.//;
3830: $chgcount ++;
3831: }
3832: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3833: unless ($readinghash{$readkey} =~ /\.$1\./) {
3834: $readinghash{$readkey} .= '.'.$1.'.';
3835: $chgcount ++;
3836: }
3837: }
3838: }
3839: if ($chgcount > 0) {
3840: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3841: \%readinghash,$env{'user.domain'},$env{'user.name'});
3842: }
3843: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3844: '0','0','','',$env{'form.previous'},'','','',
3845: undef,undef,undef,$group);
3846: return OK;
3847: }
3848: if ($env{'form.allversions'}) {
3849: &Apache::loncommon::content_type($r,'text/html');
3850: &Apache::loncommon::no_cache($r);
3851: $r->send_http_header;
3852:
3853: # Breadcrumbs
3854: my $brcrum = [{'href' => '',
3855: 'text' => 'Discussion Post Versions'}];
3856:
3857: my %parms=();
3858: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3859:
3860: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
3861:
3862: my $crs='/'.$env{'request.course.id'};
3863: if ($env{'request.course.sec'}) {
3864: $crs.='_'.$env{'request.course.sec'};
3865: }
3866: $crs=~s|_|/|g;
3867: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3868: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3869: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3870: ($symb)=&get_feedurl_and_clean_symb($symb);
3871: my $ressymb = &wrap_symb($symb);
3872: my $seeid;
3873: if (($group ne '') && (($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|))) {
3874: if (&check_group_priv($group,'dgp') eq 'ok') {
3875: $seeid = 1;
3876: }
3877: } else {
3878: $seeid = &Apache::lonnet::allowed('rin',$crs);
3879: }
3880: if ($idx > 0) {
3881: my %messages = ();
3882: my %subjects = ();
3883: my %attachmsgs = ();
3884: my %allattachments = ();
3885: my %imsfiles = ();
3886: my ($screenname,$plainname,$showaboutme);
3887: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3888: $env{'course.'.$env{'request.course.id'}.'.domain'},
3889: $env{'course.'.$env{'request.course.id'}.'.num'});
3890: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3891: }
3892: $r->print(&Apache::loncommon::end_page());
3893: return OK;
3894: }
3895: if ($env{'form.posterlist'}) {
3896: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3897: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3898: $env{'form.sortposts'});
3899: return OK;
3900: }
3901: if ($env{'form.userpick'}) {
3902: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3903: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3904: my $numpicks = @posters;
3905: my %discinfo;
3906: $discinfo{$symb.'_userpick'} = join('&',@posters);
3907: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3908: \%discinfo,$env{'user.domain'},$env{'user.name'});
3909: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3910: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3911: '',$numpicks,$group);
3912: return OK;
3913: }
3914: if ($env{'form.applysort'}) {
3915: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3916: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3917: '',$env{'form.previous'},$env{'form.sortposts'},
3918: $env{'form.rolefilter'},$env{'form.statusfilter'},
3919: $env{'form.sectionpick'},$env{'form.grouppick'},
3920: undef,$group);
3921: return OK;
3922: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3923: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3924: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3925: return OK;
3926: } elsif ($env{'form.navtime'}) {
3927: my %discinfo = ();
3928: my @resources = ();
3929: if (defined($env{'form.navmaps'})) {
3930: if ($env{'form.navmaps'} =~ /:/) {
3931: @resources = split(/:/,$env{'form.navmaps'});
3932: } else {
3933: @resources = ("$env{'form.navmaps'}");
3934: }
3935: } else {
3936: &has_discussion(\@resources);
3937: }
3938: my $numitems = @resources;
3939: my $feedurl = '/adm/navmaps';
3940: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3941: my %lt = &Apache::lonlocal::texthash(
3942: 'mnpa' => 'Marked "New" posts as read in a total of',
3943: 'robb' => 'resources/bulletin boards.',
3944: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3945: );
3946: foreach my $res (@resources) {
3947: my $ressymb=$res;
3948: &Apache::lonenc::check_decrypt(\$ressymb);
3949: my $lastkey = $ressymb.'_lastread';
3950: $discinfo{$lastkey} = $env{'form.navtime'};
3951: }
3952: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3953: if ($numitems > 0) {
3954: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3955: \%discinfo,$env{'user.domain'},$env{'user.name'});
3956: } else {
3957: $textline = "<b>$lt{'twnp'}</b>";
3958: }
3959: &Apache::loncommon::content_type($r,'text/html');
3960: $r->send_http_header;
3961: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3962: my %onload;
3963:
3964: my $start_page=
3965: &Apache::loncommon::start_page('New posts marked as read',undef,
3966: {'redirect' => [2,$feedurl],
3967: 'only_body' => 1,
3968: 'add_entries' => \%onload});
3969: my $end_page = &Apache::loncommon::end_page();
3970: $r->print (<<ENDREDIR);
3971: $start_page
3972: <img align="right" src="$logo" />
3973: $textline
3974: <form name="reldt" action="$feedurl" target="loncapaclient">
3975: </form>
3976: <br />
3977: $end_page
3978: ENDREDIR
3979: return OK;
3980: } elsif ($env{'form.modifydisp'}) {
3981: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3982: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3983: split(/_/,$env{'form.changes'});
3984: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3985: $dispchgB,$markchg,$toggchg,$feedurl);
3986: return OK;
3987: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3988: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3989: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3990: $env{'form.toggon'} || $env{'form.markread'}) {
3991: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3992: my %discinfo;
3993: # ------------------------ Modify setting for read/unread toggle for each post
3994: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3995: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3996: # --------- Modify setting for identification of 'NEW' posts in this discussion
3997: if ($env{'form.markondisp'}) {
3998: $discinfo{$symb.'_lastread'} = time;
3999: $discinfo{$symb.'_markondisp'} = 1;
4000: }
4001: if ($env{'form.markonread'}) {
4002: if ( $env{'form.previous'} > 0 ) {
4003: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4004: }
4005: $discinfo{$symb.'_markondisp'} = 0;
4006: }
4007: # --------------------------------- Modify display setting for this discussion
4008: if ($env{'form.allposts'}) {
4009: $discinfo{$symb.'_showonlyunread'} = 0;
4010: $discinfo{$symb.'_showonlyunmark'} = 0;
4011: }
4012: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4013: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4014: # ----------------------------------------------------- Mark new posts not NEW
4015: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4016: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4017: \%discinfo,$env{'user.domain'},$env{'user.name'});
4018: my $previous=$env{'form.previous'};
4019: if ($env{'form.markondisp'}) { $previous=undef; }
4020: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4021: '0','0','','',$previous,'','','','','','',$group);
4022: return OK;
4023: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4024: # ----------------------------------------------------------------- Hide/unhide
4025: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4026: my ($symb,$idx)=split(/\:\:\:/,$entry);
4027: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4028:
4029: my $crs='/'.$env{'request.course.id'};
4030: if ($env{'request.course.sec'}) {
4031: $crs.='_'.$env{'request.course.sec'};
4032: }
4033: $crs=~s/\_/\//g;
4034: my $seeid=&Apache::lonnet::allowed('rin',$crs);
4035:
4036: if ($env{'form.hide'} && !$seeid && !(&editing_allowed($env{'form.hide'},$group))) {
4037: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','','',
4038: undef,undef,$group,);
4039: return OK;
4040: }
4041:
4042: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4043: $env{'course.'.$env{'request.course.id'}.'.domain'},
4044: $env{'course.'.$env{'request.course.id'}.'.num'});
4045:
4046: my $currenthidden=$contrib{'hidden'};
4047: my $currentstudenthidden=$contrib{'studenthidden'};
4048:
4049: if ($env{'form.hide'}) {
4050: $currenthidden.='.'.$idx.'.';
4051: unless ($seeid) {
4052: $currentstudenthidden.='.'.$idx.'.';
4053: }
4054: } else {
4055: $currenthidden=~s/\.$idx\.//g;
4056: }
4057: my %newhash=('hidden' => $currenthidden);
4058: if ( ($env{'form.hide'}) && (!$seeid) ) {
4059: $newhash{'studenthidden'} = $currentstudenthidden;
4060: }
4061: if ($env{'form.hide'}) {
4062: my $changelast = 0;
4063: my $newlast;
4064: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4065: if ($changelast) {
4066: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4067: $env{'course.'.$env{'request.course.id'}.'.domain'},
4068: $env{'course.'.$env{'request.course.id'}.'.num'});
4069: }
4070: }
4071: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4072: $env{'course.'.$env{'request.course.id'}.'.domain'},
4073: $env{'course.'.$env{'request.course.id'}.'.num'});
4074:
4075: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
4076: '0','0','','',$env{'form.previous'},undef,undef,undef,
4077: undef,undef,undef,$group);
4078: return OK;
4079: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4080: # ----------------------------------------------------------------- Like/unlike
4081: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4082: my ($symb,$idx)=split(/\:\:\:/,$entry);
4083: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4084: my $result;
4085: if ($idx > 0) {
4086: my $realsymb = &get_realsymb($symb);
4087: my $status='OPEN';
4088: if ($Apache::lonhomework::parsing_a_problem ||
4089: $Apache::lonhomework::parsing_a_task) {
4090: $status=$Apache::inputtags::status[-1];
4091: }
4092: if (&discussion_vote_available($status,$realsymb)) {
4093: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4094: $env{'course.'.$env{'request.course.id'}.'.domain'},
4095: $env{'course.'.$env{'request.course.id'}.'.num'});
4096: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4097: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4098: $result = &mt("Vote not registered. No voting for your own posts.");
4099: } else {
4100:
4101: #
4102: # Likes and unlikes are in db-file "disclikes" of the course
4103: # The prefix is the $symb to identify the resource discussion,
4104: # and the $idx to identify the entry
4105: #
4106: my $prefix=$symb.':'.$idx.':';
4107: my %likes=&Apache::lonnet::dump('disclikes',
4108: $env{'course.'.$env{'request.course.id'}.'.domain'},
4109: $env{'course.'.$env{'request.course.id'}.'.num'},
4110: '^'.$prefix);
4111:
4112: # Get current like or unlike status for the $idx for this user.
4113: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4114: my ($userlikes,$userunlikes);
4115: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4116: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4117: $userlikes = 1;
4118: }
4119: }
4120: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4121: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4122: $userunlikes = 1;
4123: }
4124: }
4125: # Get the current "likes" count
4126: my $likescount=$likes{$prefix.'likes'};
4127: # Find out if they already voted
4128: # Users cannot like a post twice, or unlike it twice.
4129: # They can change their mind, though.
4130: my $alreadyflag=0;
4131: if ($env{'form.like'}) {
4132: if ($userlikes) {
4133: $alreadyflag=1;
4134: } elsif ($userunlikes) {
4135: delete($likes{$prefix.'unlikers'}{$thisuser});
4136: $likescount++;
4137: } else {
4138: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4139: $likes{$prefix.'likers'}{$thisuser} = 1;
4140: } else {
4141: $likes{$prefix.'likers'} = {$thisuser => 1};
4142: }
4143: $likescount++;
4144: }
4145: } else {
4146: if ($userunlikes) {
4147: $alreadyflag=1;
4148: } elsif ($userlikes) {
4149: delete($likes{$prefix.'likers'}{$thisuser});
4150: $likescount--;
4151: } else {
4152: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4153: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4154: } else {
4155: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4156: }
4157: $likescount--;
4158: }
4159: }
4160: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4161: if ($alreadyflag) {
4162: if ($env{'form.like'}) {
4163: $result= &mt("'Like' already registered");
4164: } else {
4165: $result= &mt("'Unlike' already registered");
4166: }
4167: } else {
4168: my %newhash=($prefix.'likes' => $likescount,
4169: $prefix.'likers' => $likes{$prefix.'likers'},
4170: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4171: # Store data in db-file "disclikes"
4172: if (&Apache::lonnet::put('disclikes',
4173: \%newhash,
4174: $env{'course.'.$env{'request.course.id'}.'.domain'},
4175: $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
4176: # Also store with the person who posted the liked/unliked entry
4177: if ($env{'form.like'}) {
4178: &storediscussionlikes(1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4179: $result=&mt("Registered 'Like'");
4180: } else {
4181: &storediscussionlikes(-1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4182: $result=&mt("Registered 'Unlike'");
4183: }
4184: } else {
4185: # Oops, something went wrong
4186: $result=&mt("Failed to register vote");
4187: }
4188: }
4189: }
4190: } else {
4191: $result=&mt('Voting unavailable for this discussion');
4192: }
4193: } else {
4194: $result=&mt('Invalid post number');
4195: }
4196: &redirect_back($r,$feedurl,$result.'<br />',
4197: '0','0','','',$env{'form.previous'},undef,undef,undef,
4198: undef,undef,undef,$group);
4199: return OK;
4200: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4201: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4202: if ($env{'form.cmd'} eq 'threadedon') {
4203: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4204: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4205: } else {
4206: &Apache::lonnet::del('environment',['threadeddiscussion']);
4207: &Apache::lonnet::delenv('environment.threadeddiscussion');
4208: }
4209: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4210: '0','0','','',$env{'form.previous'},undef,undef,undef,
4211: undef,undef,undef,$group);
4212: return OK;
4213: } elsif ($env{'form.deldisc'}) {
4214: # --------------------------------------------------------------- Hide for good
4215: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4216: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4217: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4218: $env{'course.'.$env{'request.course.id'}.'.domain'},
4219: $env{'course.'.$env{'request.course.id'}.'.num'});
4220: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4221: if ($changelast) {
4222: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4223: $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'});
4224: }
4225: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4226: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4227: $env{'course.'.$env{'request.course.id'}.'.domain'},
4228: $env{'course.'.$env{'request.course.id'}.'.num'});
4229: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
4230: '0','0','','',$env{'form.previous'},undef,undef,undef,
4231: undef,undef,undef,$group);
4232: return OK;
4233: } elsif ($env{'form.preview'}) {
4234: # -------------------------------------------------------- User wants a preview
4235: &show_preview($r);
4236: return OK;
4237: } elsif ($env{'form.attach'}) {
4238: # -------------------------------------------------------- Work on attachments
4239: &Apache::loncommon::content_type($r,'text/html');
4240: $r->send_http_header;
4241: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4242: my (@currnewattach,@currdelold,@keepold,$toolarge);
4243: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4244: if (exists($env{'form.addnewattach.filename'})) {
4245: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4246: my $subdir = 'feedback/'.$env{'form.timestamp'};
4247: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4248: push(@currnewattach, $newattachment);
4249: } else {
4250: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4251: }
4252: }
4253: my $attachmenturls;
4254: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4255: my $idx = $env{'form.idx'};
4256: if ($idx) {
4257: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4258: $env{'course.'.$env{'request.course.id'}.'.domain'},
4259: $env{'course.'.$env{'request.course.id'}.'.num'});
4260: $attachmenturls = $contrib{$idx.':attachmenturl'};
4261: }
4262: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4263: $attachmenturls,$attachmax{'text'},$toolarge);
4264: return OK;
4265: } elsif ($env{'form.export'}) {
4266: &Apache::loncommon::content_type($r,'text/html');
4267: $r->send_http_header;
4268: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4269: my $mode='board';
4270: my $status='OPEN';
4271: my $previous=$env{'form.previous'};
4272: if ($feedurl =~ /$LONCAPA::assess_re/) {
4273: $mode='problem';
4274: $status=$Apache::inputtags::status[-1];
4275: }
4276: my $discussion = &list_discussion($mode,$status,$symb);
4277: my $start_page =
4278: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4279: my $end_page =
4280: &Apache::loncommon::end_page();
4281: $r->print($start_page.$discussion.$end_page);
4282: return OK;
4283:
4284: } elsif ($env{'form.undeleteall'}) {
4285: &Apache::loncommon::content_type($r,'text/html');
4286: $r->send_http_header;
4287: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4288: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4289: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) {
4290: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4291: $env{'course.'.$env{'request.course.id'}.'.domain'},
4292: $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
4293: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")));
4294: } else {
4295: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1));
4296: }
4297: $r->print("<br /><a href='$feedurl'>".&mt("Return and reload")."</a>");
4298: }
4299: $r->print(&Apache::loncommon::end_page());
4300: return OK;
4301: } else {
4302: # ------------------------------------------------------------- Normal feedback
4303: my $feedurl=$env{'form.postdata'};
4304: $feedurl=~s/^https?\:\/\///;
4305: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4306: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4307: $feedurl=~s/\?.+$//;
4308:
4309: my $symb;
4310: if ($env{'form.replydisc'}) {
4311: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4312: } elsif ($env{'form.editdisc'}) {
4313: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4314: } elsif ($env{'form.origpage'}) {
4315: $symb="";
4316: } elsif ($env{'form.sendmessageonly'}) {
4317: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4318: } else {
4319: $symb=&Apache::lonnet::symbread($feedurl);
4320: }
4321: unless ($symb) {
4322: $symb=$env{'form.symb'};
4323: }
4324: if (defined($symb)) {
4325: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4326: } else {
4327: # backward compatibility (bulletin boards used to be 'wrapped')
4328: &Apache::lonenc::check_decrypt(\$feedurl);
4329: &dewrapper(\$feedurl);
4330: }
4331: my $goahead=1;
4332: if ($feedurl=~/$LONCAPA::assess_re/) {
4333: unless ($symb) { $goahead=0; }
4334: }
4335: if (!$goahead) {
4336: # Ambiguous Problem Resource
4337: $r->internal_redirect('/adm/ambiguous');
4338: return OK;
4339: }
4340: # Go ahead with feedback, no ambiguous reference
4341: unless (
4342: (
4343: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4344: )
4345: ||
4346: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4347: ||
4348: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4349: ) {
4350: &Apache::loncommon::content_type($r,'text/html');
4351: $r->send_http_header;
4352: # Unable to give feedback
4353: &Apache::lonenc::check_encrypt(\$feedurl);
4354: &no_redirect_back($r,$feedurl);
4355: return OK;
4356: }
4357: # --------------------------------------------------- Print login screen header
4358: unless ($env{'form.sendit'}) {
4359: &Apache::lonenc::check_encrypt(\$feedurl);
4360: &Apache::loncommon::content_type($r,'text/html');
4361: $r->send_http_header;
4362: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4363: my ($blocked,$blocktext) =
4364: &Apache::loncommon::blocking_status('boards');
4365: if ($blocked) {
4366: $r->print(&blocked_reply_or_edit($blocktext));
4367: return OK;
4368: }
4369: }
4370: my $options=&screen_header($feedurl,$symb,$group);
4371: if ($options) {
4372: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4373: } else {
4374: &fail_redirect($r,$feedurl);
4375: }
4376: return OK;
4377: }
4378:
4379: # Get previous user input
4380: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4381: $symb,$env{'user.name'},$env{'user.domain'},
4382: $env{'request.course.id'});
4383:
4384: # Get output from resource
4385: &Apache::lonenc::check_encrypt(\$feedurl);
4386: my $usersaw=&resource_output($feedurl);
4387:
4388: # Get resource answer (need to allow student to view grades for this to work)
4389: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4390: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4391: my $useranswer=
4392: &Apache::loncommon::get_student_answers(
4393: $usersymb,$env{'user.name'},$env{'user.domain'},
4394: $env{'request.course.id'});
4395: &Apache::lonnet::delenv('allowed.vgr');
4396: # Get attachments, if any, and not too large
4397: my $attachmenturl='';
4398: my $toolarge='';
4399: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4400: ($env{'form.replydisc'})) {
4401: my ($symb,$idx);
4402: if ($env{'form.replydisc'}) {
4403: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4404: } elsif ($env{'form.editdisc'}) {
4405: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4406: } elsif ($env{'form.origpage'}) {
4407: $symb = $env{'form.symb'};
4408: }
4409: &Apache::lonenc::check_decrypt(\$symb);
4410: my @currnewattach = ();
4411: my @deloldattach = ();
4412: my @keepold = ();
4413: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4414: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4415: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4416: } elsif ($env{'form.attachment.filename'}) {
4417: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4418: my $now = time;
4419: my $subdir = 'feedback/'.$now;
4420: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4421: } else {
4422: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4423: }
4424: }
4425: # Filter HTML out of message (could be nasty)
4426: my $override;
4427: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4428: $override = 1;
4429: }
4430: my $message=&clear_out_html($env{'form.comment'},$override);
4431:
4432: # Assemble email
4433: my ($email,$citations)=&assemble_email($message,$prevattempts,
4434: $usersaw,$useranswer);
4435:
4436: # Who gets this?
4437: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4438:
4439: # Actually send mail
4440: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4441: $feedurl,$email,$citations,
4442: $attachmenturl,$usersymb,%to);
4443:
4444: # Discussion? Store that.
4445: my $numpost=0;
4446: if ( ($env{'form.discuss'} ne ''
4447: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4448: || $env{'form.anondiscuss'} ne '') {
4449: my $subject = &clear_out_html($env{'form.subject'});
4450: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4451: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4452: $subject,$group);
4453: $numpost++;
4454: }
4455:
4456: # Add to blog?
4457:
4458: my $blog='';
4459: if ($env{'form.blog'}) {
4460: my $subject = &clear_out_html($env{'form.subject'});
4461: $status.=&Apache::lonrss::addentry($env{'user.name'},
4462: $env{'user.domain'},
4463: 'CourseBlog_'.$env{'request.course.id'},
4464: $subject,$message,$feedurl,'public');
4465: if (&Apache::loncommon::course_type() eq 'Community') {
4466: $blog='<br />'.&mt('Added to my community blog').'<br />';
4467: } else {
4468: $blog='<br />'.&mt('Added to my course blog').'<br />';
4469: }
4470: }
4471:
4472: # Receipt screen and redirect back to where came from
4473: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4474: }
4475: return OK;
4476: }
4477:
4478: sub blocked_reply_or_edit {
4479: my ($blocktext) = @_;
4480: return
4481: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4482: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4483: &mt('Back to previous page').
4484: &Apache::loncommon::end_page();
4485: }
4486:
4487: sub wrap_symb {
4488: my ($ressymb)=@_;
4489: if ($ressymb =~ /bulletin___\d+___/) {
4490: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4491: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4492: }
4493: }
4494: return $ressymb;
4495: }
4496: sub dewrapper {
4497: my ($feedurl)=@_;
4498: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4499: $$feedurl=~s|^/adm/wrapper||;
4500: }
4501: }
4502:
4503: sub get_feedurl {
4504: my ($symb)=@_;
4505: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4506: my $feedurl = &Apache::lonnet::clutter($url);
4507: &dewrapper(\$feedurl);
4508: return $feedurl;
4509: }
4510:
4511: sub get_feedurl_and_clean_symb {
4512: my ($symb)=@_;
4513: &Apache::lonenc::check_decrypt(\$symb);
4514: # backward compatibility (bulletin boards used to be 'wrapped')
4515: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4516: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4517: }
4518: my $feedurl = &get_feedurl($symb);
4519: return ($symb,$feedurl);
4520: }
4521:
4522: sub editing_allowed {
4523: my ($postid,$group) = @_;
4524: $postid = &unescape($postid);
4525: my $can_edit = 0;
4526: if ($group ne '') {
4527: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4528: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4529: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4530: if (&check_group_priv($group,'egp') eq 'ok') {
4531: $can_edit = 1;
4532: }
4533: return $can_edit;
4534: }
4535: }
4536: my $cid = $env{'request.course.id'};
4537: my $role = (split(/\./,$env{'request.role'}))[0];
4538: my $section = $env{'request.course.sec'};
4539: my $allow_editing_config =
4540: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4541: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4542: $can_edit = 1;
4543: } else {
4544: foreach my $editor (split(/,/,$allow_editing_config)) {
4545: my ($editor_role,$editor_sec) = split(/:/,$editor);
4546: if ($editor_role eq $role
4547: && defined($editor_sec)
4548: && defined($section)
4549: && $editor_sec eq $section) {
4550: $can_edit = 1;
4551: last;
4552: }
4553: if ($editor_role eq $role
4554: && !defined($editor_sec)) {
4555: $can_edit = 1;
4556: }
4557: }
4558: }
4559: return $can_edit;
4560: }
4561:
4562: sub check_group_priv {
4563: my ($group,$grp_priv) = @_;
4564: foreach my $priv ('mdg','vcg') {
4565: my $checkcourse = $env{'request.course.id'}.
4566: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4567: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4568: return 'ok';
4569: }
4570: }
4571: if ($grp_priv && $group ne '') {
4572: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4573: return 'ok';
4574: }
4575: }
4576: return '';
4577: }
4578:
4579: sub group_args {
4580: my ($group) = @_;
4581: if ($group eq '') { return ''; }
4582: my $extra_args = '&group='.$group;
4583: if (exists($env{'form.ref'})) {
4584: $extra_args .= '&ref='.$env{'form.ref'};
4585: }
4586: return $extra_args;
4587: }
4588:
4589: sub get_resource_title {
4590: my ($symb,$feedurl) = @_;
4591: my ($restitle,$plainurl);
4592: if (defined($symb)) {
4593: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4594: $restitle = &Apache::lonnet::gettitle($plain_symb);
4595: }
4596: if (defined($feedurl)) {
4597: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4598: }
4599: if (!defined($restitle)) {
4600: if (defined($feedurl)) {
4601: $restitle = &Apache::lonnet::gettitle($plainurl);
4602: }
4603: }
4604: if ($plainurl ne $feedurl) {
4605: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4606: if ($plain_filename eq $restitle) {
4607: $restitle = &mt('Untitled resource');
4608: }
4609: }
4610: if ($restitle eq '') {
4611: $restitle = &mt('Untitled resource');
4612: }
4613: return $restitle;
4614: }
4615:
4616: 1;
4617: __END__
4618:
4619:
4620: =pod
4621:
4622: =head1 NAME
4623:
4624: Apache::lonfeedback.pm
4625:
4626: =head1 SYNOPSIS
4627:
4628: Handles feedback from students to instructors and system administrators.
4629:
4630: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4631:
4632: Used by lonmsg.pm.
4633:
4634: This is part of the LearningOnline Network with CAPA project
4635: described at http://www.lon-capa.org.
4636:
4637: =head1 OVERVIEW
4638:
4639: None
4640:
4641: =head1 SUBROUTINES
4642:
4643: =over
4644:
4645: =item discussion_open()
4646:
4647: =item discussion_visible()
4648:
4649: =item discussion_vote_available()
4650:
4651: =item get_realsymb()
4652:
4653: =item list_discussion()
4654:
4655: =item send_feedback_link()
4656:
4657: =item send_message_link()
4658:
4659: =item action_links_bar()
4660:
4661: =item postingform_display()
4662:
4663: =item build_posting_display
4664:
4665: =item filter_regexp()
4666:
4667: =item get_post_contents()
4668:
4669: =item replicate_attachments()
4670:
4671: =item mail_screen()
4672:
4673: =item print_display_options()
4674:
4675: =item print_sortfilter_options()
4676:
4677: =item print_showposters()
4678:
4679: =item get_post_versions()
4680:
4681: =item get_post_attachments()
4682:
4683: =item fail_redirect()
4684:
4685: =item redirect_back()
4686:
4687: =item no_redirect_back()
4688:
4689: =item screen_header()
4690:
4691: =item resource_output()
4692:
4693: =item clear_out_html()
4694:
4695: =item assemble_email()
4696:
4697: =item feedback_available()
4698:
4699: =item send_msg()
4700:
4701: =item adddiscuss()
4702:
4703: =item get_discussion_info()
4704:
4705: =item show_preview()
4706:
4707: =item newline_to_br()
4708:
4709: =item tidy_html()
4710:
4711: =item generate_preview_button()
4712:
4713: =item modify_attachments()
4714:
4715: =item process_attachments()
4716:
4717: =item generate_attachments_button()
4718:
4719: =item extract_attachments()
4720:
4721: =item construct_attachmenturl()
4722:
4723: =item add_blog_checkbox()
4724:
4725: =item has_discussion()
4726:
4727: =item sort_filter_names()
4728:
4729: =item handler()
4730:
4731: =item blocked_reply_or_edit()
4732:
4733: =item wrap_symb()
4734:
4735: =item dewrapper()
4736:
4737: =item get_feedurl()
4738:
4739: =item get_feedurl_and_clean_symb()
4740:
4741: =item editing_allowed()
4742:
4743: =item check_group_priv()
4744:
4745: =item group_args()
4746:
4747: =item get_resource_title()
4748:
4749: =back
4750:
4751: =cut
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