1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.290.2.7.2.5 2012/05/01 15:56:16 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=~/\.(problem|exam|quiz|assess|survey|form|task)$/));
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 (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
281: $seeid = 1;
282: }
283: my $seehidden = &can_see_hidden($mode,$ressymb,undef,$group,$cdom,$cnum,$crs);
284: # Is voting on discussions available
285: my $realsymb = &get_realsymb($ressymb);
286: my $canvote = &discussion_vote_available($status,$realsymb);
287:
288: my @discussionitems=();
289: my %shown = ();
290: my @posteridentity=();
291:
292: my $current=0;
293: my $visible=0;
294: my @depth=();
295: my @replies = ();
296: my %alldiscussion=();
297: my %imsitems=();
298: my %imsfiles=();
299: my %notshown = ();
300: my %newitem = ();
301: my $maxdepth=0;
302: my %anonhash=();
303: my $anoncnt=0;
304: my $target='';
305: unless ($env{'browser.interface'} eq 'textual' ||
306: $env{'environment.remote'} eq 'off' ) {
307: $target='target="LONcom"';
308: }
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,$seehidden,$canvote,$prevread,$sortposts,$encsymb,$target,$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 $color = &Apache::loncommon::designparm($function.'.tabbg',
325: $env{'user.domain'});
326: my %lt = &Apache::lonlocal::texthash(
327: 'cuse' => 'Current discussion settings',
328: 'allposts' => 'All posts',
329: 'unread' => 'New posts only',
330: 'unmark' => 'Unread only',
331: 'ondisp' => 'Once displayed',
332: 'onmark' => 'Once marked not NEW',
333: 'toggoff' => 'Off',
334: 'toggon' => 'On',
335: 'disa' => 'Posts to be displayed',
336: 'npce' => 'Posts cease to be marked "NEW"',
337: 'epcb' => 'Each post can be toggled read/unread',
338: 'chgt' => 'Change',
339: 'disp' => 'Display',
340: 'nolo' => 'Not new',
341: 'togg' => 'Toggle read/unread',
342: 'aner' => 'An error occurred opening the manifest file.',
343: 'difo' => 'Discussion for',
344: 'aerr' => 'An error occurred opening the export file for posting',
345: 'aysu' => 'Are you sure you want to delete this post?',
346: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
347: 'bwco' => 'but will continue to be visible to your instructor',
348: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
349: 'discussions' => 'DISCUSSIONS'
350: );
351:
352: my $currdisp = $lt{'allposts'};
353: my $currmark = $lt{'onmark'};
354: my $currtogg = $lt{'toggoff'};
355: my $dispchange = $lt{'unread'};
356: my $markchange = $lt{'ondisp'};
357: my $toggchange = $lt{'toggon'};
358: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
359: my $displinkA = 'onlyunread';
360: my $displinkB = 'onlyunmark';
361: my $marklink = 'markondisp';
362: my $togglink = 'toggon';
363:
364: if ($markondisp) {
365: $currmark = $lt{'ondisp'};
366: $markchange = $lt{'onmark'};
367: $marklink = 'markonread';
368: }
369:
370: if ($showonlyunread) {
371: $currdisp = $lt{'unread'};
372: $dispchange = $lt{'allposts'};
373: $displinkA = 'allposts';
374: }
375:
376: if ($showunmark) {
377: $currdisp = $lt{'unmark'};
378: $dispchange = $lt{'unmark'};
379: $displinkA='allposts';
380: $displinkB='onlyunread';
381: $showonlyunread = 0;
382: }
383:
384: if ($dischash{$toggkey}) {
385: $currtogg = $lt{'toggon'};
386: $toggchange = $lt{'toggoff'};
387: $togglink = 'toggoff';
388: }
389:
390: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
391:
392: if ($newpostsflag) {
393: $chglink .= '&previous='.$prevread;
394: }
395: $chglink.=&group_args($group);
396:
397: if ($visible) {
398: # Print the discusssion
399: if ($outputtarget eq 'tex') {
400: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
401: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
402: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
403: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
404: } elsif ($outputtarget eq 'export') {
405: # Create temporary directory if this is an export
406: my $now = time;
407: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
408: $tempexport = $$imsextras{'tempexport'};
409: if (!-e $tempexport) {
410: mkdir($tempexport,0700);
411: }
412: $tempexport .= '/'.$$imsextras{'count'};
413: if (!-e $tempexport) {
414: mkdir($tempexport,0700);
415: }
416: } else {
417: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
418: if (!-e $tempexport) {
419: mkdir($tempexport,0700);
420: }
421: $tempexport .= '/'.$now;
422: if (!-e $tempexport) {
423: mkdir($tempexport,0700);
424: }
425: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
426: }
427: if (!-e $tempexport) {
428: mkdir($tempexport,0700);
429: }
430: # open manifest file
431: my $manifest = '/imsmanifest.xml';
432: my $manifestfilename = $tempexport.$manifest;
433: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
434: $manifestok=1;
435: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
436: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
437: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
438: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
439: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
440: <organizations default="$ressymb">
441: <organization identifier="$ressymb">
442: <title>$lt{'difo'} $ressymb</title>\n|;
443: } else {
444: $discussion .= $lt{'aner'}.'<br />';
445: }
446: } else {
447: my $colspan=$maxdepth+1;
448: #JW
449: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
450: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
451: var symbparm = symb+':::'+idx
452: var prevparm = ""
453: if (newflag == 1) {
454: prevparm = "&previous="+previous
455: }
456: if (caller == 'studentdelete') {
457: if (confirm("$lt{'aysu'}\\n$lt{'dpwn'},\\n$lt{'bwco'}")) {
458: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
459: }
460: } else {
461: if (caller == 'seeiddelete') {
462: if (confirm("$lt{'aysu'}\\n$lt{'depo'}")) {
463: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
464: }
465: }
466: }
467: }
468: |);
469: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
470: "\n".'<table class="LC_discussion">';
471: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
472: $newpostsflag,$group,
473: $prevread,$markondisp,$seehidden);
474: my $escsymb=&escape($ressymb);
475: my $numhidden = keys(%notshown);
476: if ($numhidden > 0) {
477: my $colspan = $maxdepth+1;
478: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
479: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
480: if ($newpostsflag) {
481: $discussion .= '&previous='.$prevread;
482: }
483: $discussion .= &group_args($group);
484: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
485: $numhidden.' ';
486: if ($showunmark) {
487: $discussion .= &mt('posts previously marked read');
488: } else {
489: $discussion .= &mt('previously viewed posts');
490: }
491: $discussion .= '<br/></td></tr>';
492: }
493: }
494:
495: # Choose sort mechanism
496: my @showposts = ();
497: if ($sortposts eq 'descdate') {
498: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
499: } elsif ($sortposts eq 'thread') {
500: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
501: } elsif ($sortposts eq 'subject') {
502: foreach my $key (sort(keys(%subjectsort))) {
503: push(@showposts, @{$subjectsort{$key}});
504: }
505: } elsif ($sortposts eq 'username') {
506: foreach my $domain (sort(keys(%usernamesort))) {
507: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
508: push(@showposts, @{$usernamesort{$domain}{$key}});
509: }
510: }
511: } elsif ($sortposts eq 'lastfirst') {
512: foreach my $last (sort(keys(%namesort))) {
513: foreach my $key (sort(keys(%{$namesort{$last}}))) {
514: push(@showposts, @{$namesort{$last}{$key}});
515: }
516: }
517: } else {
518: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
519: }
520: my $currdepth = 0;
521: my $firstidx = $alldiscussion{$showposts[0]};
522: foreach my $post (@showposts) {
523: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
524: $alldiscussion{$post} = $post;
525: }
526: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
527: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
528: $discussion.="\n<tr>";
529: }
530: my $thisdepth=$depth[$alldiscussion{$post}];
531: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
532: for (1..$thisdepth) {
533: $discussion.='<td> </td>';
534: }
535: }
536: my $colspan=$maxdepth-$thisdepth+1;
537: if ($outputtarget eq 'tex') {
538: #cleanup block
539: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
540: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
541: my $threadinsert='';
542: if ($thisdepth > 0) {
543: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
544: }
545: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
546: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
547:
548: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
549: $discussion.=$discussionitems[$alldiscussion{$post}];
550: } elsif ($outputtarget eq 'export') {
551: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
552: if ($manifestok) {
553: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
554: print $manifestfile ' </item>'."\n";
555: }
556: $currdepth = $depth[$alldiscussion{$post}];
557: print $manifestfile "\n".
558: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
559: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
560: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
561: $imsresources .= "\n".
562: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
563: '<file href="'.$postfilename.'">'."\n".
564: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
565: '</resource>';
566: }
567: my $postingfile;
568: my $postingfilename = $tempexport.'/'.$postfilename;
569: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
570: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
571: $imsitems{$alldiscussion{$post}}{'title'}.' '.
572: $imsitems{$alldiscussion{$post}}{'sender'}.
573: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
574: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
575: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
576: close($postingfile);
577: } else {
578: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
579: }
580: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
581: } else {
582: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
583: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
584: '</td></tr>';
585: }
586: }
587: }
588: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
589: my $colspan=$maxdepth+1;
590: $discussion .= <<END;
591: <tr bgcolor="#FFFFFF">
592: <td colspan="$colspan" class="LC_disc_action_links_bar">
593: <table class="LC_disc_action_table">
594: <tr>
595: <td align="left">
596: <table border="0" cellpadding="0" cellspacing="4">
597: <tr>
598: <td>
599: <font size="-1"><b>$lt{'cuse'}</b>:</font></td>
600: <td> </td>
601: <td><font size="-1">
602: END
603: if ($newpostsflag) {
604: $discussion .=
605: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
606: if ($dischash{$toggkey}) {
607: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
608: }
609: } else {
610: if ($dischash{$toggkey}) {
611: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
612: } else {
613: $discussion .=
614: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
615: }
616: }
617: $discussion .= <<END;
618: </font></td>
619: <td> </td>
620: <td align="left">
621: <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</b></font>
622: </td>
623: </tr>
624: </table>
625: </td>
626: END
627: if ($sortposts) {
628: my %sort_types = ();
629: my %role_types = ();
630: my %status_types = ();
631: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
632:
633: $discussion .= '<td><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
634: if (defined($env{'form.totposters'})) {
635: $discussion .= &mt('Posts by').':';
636: if ($totposters > 0) {
637: foreach my $poster (@posters) {
638: $discussion .= ' '.$poster.',';
639: }
640: $discussion =~ s/,$//;
641: } else {
642: $discussion .= &mt('None selected');
643: }
644: } else {
645: my $filterchoice ='';
646: if (@sectionpick > 0) {
647: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
648: $filterchoice .= ' ';
649: }
650: if (@grouppick > 0) {
651: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
652: $filterchoice .= ' ';
653: }
654: if (@rolefilter > 0) {
655: $filterchoice .= '<i>'.&mt('roles').'</i>-';
656: foreach my $role (@rolefilter) {
657: $filterchoice .= ' '.$role_types{$role}.',';
658: }
659: $filterchoice =~ s/,$//;
660: $filterchoice .= '<br />'.(' ' x8);
661: }
662: if ($statusfilter) {
663: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
664: }
665: if ($filterchoice) {
666: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
667: }
668: $discussion .= '</font></td>';
669: }
670: }
671: if ($dischash{$toggkey}) {
672: my $storebutton = &mt('Save read/unread changes');
673: $discussion.='<td align="right">'.
674: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
675: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
676: ' onclick="this.form.submit();" />'."\n".
677: '</td>';
678: }
679: $discussion .= (<<END);
680: </tr>
681: </table>
682: </td>
683: </tr>
684: END
685: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
686: $newpostsflag,$group,
687: $prevread,$markondisp,$seehidden);
688: $discussion .= "
689: </table>
690: <br /><br /></form>\n";
691: }
692: if ($outputtarget eq 'export') {
693: if ($manifestok) {
694: while ($currdepth > 0) {
695: print $manifestfile " </item>\n";
696: $currdepth --;
697: }
698: print $manifestfile qq|
699: </organization>
700: </organizations>
701: <resources>
702: $imsresources
703: </resources>
704: </manifest>
705: |;
706: close($manifestfile);
707: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
708: $discussion = $copyresult;
709: } else {
710:
711: #Create zip file in prtspool
712:
713: my $imszipfile = '/prtspool/'.
714: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
715: time.'_'.rand(1000000000).'.zip';
716: my $cwd = &getcwd();
717: my $imszip = '/home/httpd/'.$imszipfile;
718: chdir $tempexport;
719: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
720: close(OUTPUT);
721: chdir $cwd;
722: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive','<a href="'.$imszipfile.'">').'</a><br />';
723: if ($copyresult) {
724: $discussion .= &mt('The following errors occurred during export').' - <br />'.$copyresult;
725: }
726: }
727: } else {
728: $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 />';
729: }
730: return $discussion;
731: }
732: }
733: if ($discussiononly) {
734: my $now = time;
735: my $attachnum = 0;
736: my $currnewattach = [];
737: my $currdelold = [];
738: my $comment = '';
739: my $subject = '';
740: if ($env{'form.origpage'}) {
741: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
742: $subject = &unescape($env{'form.subject'});
743: $comment = &unescape($env{'form.comment'});
744: my @keepold = ();
745: &process_attachments($currnewattach,$currdelold,\@keepold);
746: if (@{$currnewattach} > 0) {
747: $attachnum += @{$currnewattach};
748: }
749: }
750: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
751: if (($group ne '') && ($mode eq 'board')) {
752: if ((&check_group_priv($group,'pgd') eq 'ok') &&
753: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
754: $discussion .=
755: &postingform_display($mode,$ressymb,$now,$subject,
756: $comment,$outputtarget,$attachnum,
757: $currnewattach,$currdelold,
758: $group,$crstype);
759: }
760: } else {
761: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
762: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
763:
764: $discussion.=
765: &postingform_display($mode,$ressymb,$now,$subject,
766: $comment,$outputtarget,$attachnum,
767: $currnewattach,$currdelold,'',$crstype);
768: } else {
769: $discussion.= '<span class="LC_feedback_link">'.
770: &mt('This discussion is closed.').'</span>';
771: }
772: }
773: }
774: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
775: $discussion.= '<span class="LC_feedback_link">'.
776: &mt('This discussion is closed.').'</span>';
777: }
778: } elsif ($outputtarget ne 'tex') {
779: $discussion.='<div class="LC_feedback_link">';
780: if (&discussion_open($status) &&
781: &Apache::lonnet::allowed('pch',
782: $env{'request.course.id'}.
783: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
784: $discussion.= &send_feedback_link($ressymb,$target);
785: if ($env{'request.role.adv'}) {
786: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
787: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
788: if (defined($close) && $close ne '' && $close < time) {
789: if ($canvote eq 'notended') {
790: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
791: &Apache::lonnet::plaintext('st',$crstype));
792: } else {
793: $discussion .= ' '.&mt('(Closed for [_1] roles)',
794: &Apache::lonnet::plaintext('st',$crstype));
795: }
796: }
797: }
798: } else {
799: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
800: }
801: $discussion.= &send_message_link($ressymb).'</div>';
802: }
803: return $discussion;
804: }
805:
806: sub can_see_hidden {
807: my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
808: my $seehidden;
809: if ($env{'request.course.id'}) {
810: unless ($cdom ne '' && $cnum ne '') {
811: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
812: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
813: }
814: if ($crs eq '') {
815: $crs = '/'.$env{'request.course.id'};
816: if ($env{'request.course.sec'}) {
817: $crs.='_'.$env{'request.course.sec'};
818: }
819: $crs=~s{_}{/}g;
820: }
821: if ($mode eq '') {
822: $mode='board';
823: if ($feedurl =~ /$LONCAPA::assess_re/) {
824: $mode='problem';
825: }
826: }
827: if (($group ne '') && ($mode eq 'board') &&
828: ($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
829: if (&check_group_priv($group,'dgp') eq 'ok') {
830: $seehidden = 1;
831: }
832: } else {
833: $seehidden=&Apache::lonnet::allowed('rin',$crs);
834: }
835: }
836: return $seehidden;
837: }
838:
839: sub discussion_link {
840: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title) = @_;
841: my $link = '<a href="/adm/feedback?'.$cmd.'='.&escape($ressymb).':::'.$item;
842: if ($flag) { $link .= '&previous='.$prev; }
843: if ($adds) { $link .= $adds; }
844: $link .= '"';
845: if ($title) { $link .= ' title="'.$title.'"'; }
846: $link .= '>'.$linktext.'</a>';
847: return $link;
848: }
849:
850: sub send_feedback_link {
851: my ($ressymb,$target) = @_;
852: my $output = '<span class="LC_feedback_link">'.
853: ' <a href="/adm/feedback?replydisc='.
854: &escape($ressymb).':::" '.$target.'>'.
855: '<img alt="" class="LC_noBorder" src="'.
856: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
857: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span></a></span>';
858: return $output;
859: }
860:
861: sub send_message_link {
862: my ($ressymb) = @_;
863: my $output = '<span class="LC_message_link">'.
864: ' <a href="/adm/feedback?sendmessageonly=1&symb='.
865: &escape($ressymb).'"><img alt="" class="LC_noBorder" src="'.
866: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
867: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span></a></span>';
868: return $output;
869: }
870:
871: sub action_links_bar {
872: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
873: $seehidden) = @_;
874: my $discussion = '<tr><td class="LC_disc_action_links_bar" colspan="'.$colspan.'">'.
875: '<table width="100%" class="LC_disc_action_table"><tr>'.
876: '<td class="LC_disc_action_left">';
877: my $escsymb=&escape($ressymb);
878: if ($visible) {
879: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
880: if ($newpostsflag) {
881: $discussion .= '&previous='.$prevread;
882: }
883: $discussion .= &group_args($group);
884: $discussion .='">'.&mt('Threaded View').'</a> '.
885: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
886: if ($newpostsflag) {
887: $discussion .= '&previous='.$prevread;
888: }
889: $discussion .= &group_args($group);
890: $discussion .='">'.&mt('Chronological View').'</a>
891: <a href="/adm/feedback?cmd=sortfilter&symb='.$escsymb;
892: if ($newpostsflag) {
893: $discussion .= '&previous='.$prevread;
894: }
895: $discussion .= &group_args($group);
896: $discussion .='">'.&mt('Sorting/Filtering options').'</a>'.(' ' x2);
897: }
898: $discussion .='<a href="/adm/feedback?export='.$escsymb;
899: if ($newpostsflag) {
900: $discussion .= '&previous='.$prevread;
901: }
902: $discussion .= &group_args($group);
903: $discussion .= '">'.&mt('Export').'</a>';
904: if ($seehidden) {
905: $discussion .= ' ';
906: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
907: if ($newpostsflag) {
908: $discussion .= '&previous='.$prevread;
909: }
910: $discussion .= &group_args($group);
911: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
912: }
913: $discussion.='</td>';
914: if ($newpostsflag) {
915: if (!$markondisp) {
916: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
917: $discussion .= &group_args($group);
918: $discussion .= '">'.
919: &mt('Preferences on what is marked as NEW').
920: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
921: $discussion .= &group_args($group);
922: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
923: } else {
924: $discussion .= '<td> </td>';
925: }
926: } else {
927: $discussion .= '<td> </td>';
928: }
929: $discussion .= '</tr></table></td></tr>';
930: return $discussion;
931: }
932:
933: sub postingform_display {
934: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
935: $currnewattach,$currdelold,$group,$crstype) = @_;
936: my $newattachmsg;
937: my %lt = &Apache::lonlocal::texthash(
938: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
939: 'title' => 'Title',
940: 'podi' => 'Post Discussion',
941: 'poan' => 'Post Anonymous Discussion',
942: 'newa' => 'New attachments',
943: );
944: if ($crstype eq 'Community') {
945: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
946: }
947: my ($postingform,$textareaclass);
948: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
949: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
950: $textareaclass = 'class="LC_richDefaultOff"';
951: if ($env{'request.course.id'}) {
952: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
953: undef($textareaclass);
954: }
955: }
956: }
957: $postingform .= (<<ENDDISCUSS);
958: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
959: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
960: <input type="hidden" name="sendit" value="true" />
961: <input type="hidden" name="timestamp" value="$now" />
962: <br /><a name="newpost"></a>
963: <font size="1">$lt{'note'}</font><br />
964: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br /><br />
965: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
966: ENDDISCUSS
967: if ($env{'form.origpage'}) {
968: $postingform .= '<input type="hidden" name="origpage" value="'.
969: $env{'form.origpage'}.'" />'."\n";
970: foreach my $att (@{$currnewattach}) {
971: $postingform .= '<input type="hidden" name="currnewattach" '.
972: 'value="'.$att.'" />'."\n";
973: }
974: }
975: if (exists($env{'form.ref'})) {
976: $postingform .= '<input type="hidden" name="ref" value="'.
977: $env{'form.ref'}.'" />';
978: }
979: if ($group ne '') {
980: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
981: }
982: my $blockblog = &Apache::loncommon::blocking_status('blogs');
983: if (!$blockblog) {
984: $postingform .= &add_blog_checkbox($crstype);
985: }
986: $postingform .= "</form>\n";
987: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
988: $now,$currnewattach,
989: $currdelold,'',$mode,
990: $blockblog);
991: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
992: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
993: if (@{$currnewattach} > 1) {
994: $newattachmsg .= '<ol>';
995: foreach my $item (@{$currnewattach}) {
996: $item =~ m#.*/([^/]+)$#;
997: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
998: }
999: $newattachmsg .= '</ol>'."\n";
1000: } else {
1001: $$currnewattach[0] =~ m#.*/([^/]+)$#;
1002: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
1003: }
1004: }
1005: $postingform .= $newattachmsg;
1006: $postingform .= &generate_preview_button();
1007: return $postingform;
1008: }
1009:
1010: sub build_posting_display {
1011: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$seehidden,$canvote,$prevread,$sortposts,$ressymb,$target,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
1012: my @original=();
1013: my @index=();
1014: my $skip_group_check = 0;
1015: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1016: my $escsymb=&escape($ressymb);
1017: # These are the discussion contributions
1018: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1019: $env{'course.'.$env{'request.course.id'}.'.domain'},
1020: $env{'course.'.$env{'request.course.id'}.'.num'});
1021: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1022: # And these are the likes/unlikes
1023: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1024: if ($seeid || $canvote) {
1025: %likes=&Apache::lonnet::dump('disclikes',
1026: $env{'course.'.$env{'request.course.id'}.'.domain'},
1027: $env{'course.'.$env{'request.course.id'}.'.num'},
1028: '^'.$symb.':');
1029: # Array with likes to figure out averages, etc.
1030: @theselikes=();
1031: # Hashes containing likes and unlikes for this user.
1032: %userlikes=();
1033: %userunlikes=();
1034: }
1035: # Is the user allowed to see the real name behind anonymous postings?
1036: my $see_anonymous =
1037: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1038:
1039: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1040: $skip_group_check = 1;
1041: }
1042: my (%deletions,%hiddens);
1043: if ($contrib{'deleted'}) {
1044: my $deleted = $contrib{'deleted'};
1045: $deleted =~ s/^\.//;
1046: $deleted =~ s/\.$//;
1047: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1048: }
1049: if ($contrib{'hidden'}) {
1050: my $hidden = $contrib{'hidden'};
1051: $hidden =~ s/^\.//;
1052: $hidden =~ s/\.$//;
1053: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1054: }
1055: if ($contrib{'version'}) {
1056: my $oldest = $contrib{'1:timestamp'};
1057: if ($prevread eq '0') {
1058: $prevread = $oldest-1;
1059: }
1060: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1061: if ($sortposts) {
1062: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1063: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1064: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1065: }
1066: if ($seeid || $canvote) {
1067: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1068: for (my $id=1;$id<=$contrib{'version'};$id++) {
1069: my $idx=$id;
1070: next if ($contrib{$idx.':deleted'});
1071: next if ($contrib{$idx.':hidden'});
1072: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1073: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1074: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1075: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1076: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1077: $userlikes{$idx} = 1;
1078: }
1079: }
1080: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1081: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1082: $userunlikes{$idx} = 1;
1083: }
1084: }
1085: }
1086: }
1087: }
1088: # Figure out average likes and standard deviation if there are enough
1089: # discussions to warrant that
1090: my $ave=0;
1091: my $stddev=10000;
1092: if ($#theselikes>1) {
1093: my $sum=0;
1094: my $num=$#theselikes+1;
1095: foreach my $thislike (@theselikes) {
1096: $sum+=$thislike;
1097: }
1098: $ave=$sum/$num;
1099: my $sumsq=0;
1100: foreach my $thislike (@theselikes) {
1101: $sumsq+=($thislike-$ave)*($thislike-$ave);
1102: }
1103: $stddev=sqrt($sumsq/$num);
1104: }
1105: # Now we know the average likes $ave and the standard deviation $stddev
1106: # Get the boundaries for markup
1107: $oneplus=$ave+$stddev;
1108: $twoplus=$ave+2.*$stddev;
1109: $oneminus=$ave-$stddev;
1110: $twominus=$ave-2.*$stddev;
1111: }
1112: #
1113: # This is now the real loop. Go through all entries, pick up what we need
1114: #
1115: for (my $id=1;$id<=$contrib{'version'};$id++) {
1116: my $idx=$id;
1117: next if ($contrib{$idx.':deleted'});
1118: next if ($contrib{$idx.':hidden'});
1119: my $posttime = $contrib{$idx.':timestamp'};
1120: if ($prevread <= $posttime) {
1121: $$newpostsflag = 1;
1122: }
1123: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1124: my $origindex='0.';
1125: my $numoldver=0;
1126: if ($contrib{$idx.':replyto'}) {
1127: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1128: # this is a follow-up message
1129: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1130: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1131: $origindex=$index[$contrib{$idx.':replyto'}];
1132: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1133: } else {
1134: $original[$idx]=0;
1135: $$depth[$idx]=0;
1136: }
1137: } else {
1138: # this is an original message
1139: $original[$idx]=0;
1140: $$depth[$idx]=0;
1141: }
1142: if ($$replies[$$depth[$idx]]) {
1143: $$replies[$$depth[$idx]]++;
1144: } else {
1145: $$replies[$$depth[$idx]]=1;
1146: }
1147: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1148: $$visible++;
1149: if ($contrib{$idx.':history'}) {
1150: if ($contrib{$idx.':history'} =~ /:/) {
1151: my @oldversions = split(/:/,$contrib{$idx.':history'});
1152: $numoldver = @oldversions;
1153: } else {
1154: $numoldver = 1;
1155: }
1156: }
1157: $$current = $numoldver;
1158: my %messages = ();
1159: my %subjects = ();
1160: my %attachtxt = ();
1161: my %allattachments = ();
1162: my ($screenname,$plainname,$showaboutme);
1163: my $sender = &mt('Anonymous');
1164: # Anonymous users getting number within a discussion
1165: # Since idx is in static order, this should give the same sequence every time.
1166: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1167: unless ($$anonhash{$key}) {
1168: $anoncnt++;
1169: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1170: }
1171: my ($message,$subject,$vgrlink,$ctlink);
1172: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1173:
1174:
1175: # Set up for sorting by subject
1176: unless ($outputtarget eq 'export') {
1177: $message=$messages{$numoldver};
1178: $message.=$attachtxt{$numoldver};
1179: $subject=$subjects{$numoldver};
1180: if ($message) {
1181: if ($hiddens{$idx}) {
1182: $message='<font color="#888888">'.$message.'</font>';
1183: if ($studenthidden) {
1184: $message .='<br /><br />Deleted by poster (student).';
1185: }
1186: }
1187:
1188: if ($subject eq '') {
1189: if (defined($$subjectsort{'__No subject'})) {
1190: push(@{$$subjectsort{'__No subject'}}, $idx);
1191: } else {
1192: @{$$subjectsort{'__No subject'}} = ("$idx");
1193: }
1194: } else {
1195: if (defined($$subjectsort{$subject})) {
1196: push(@{$$subjectsort{$subject}}, $idx);
1197: } else {
1198: @{$$subjectsort{$subject}} = ("$idx");
1199: }
1200: }
1201: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1202: if ($showaboutme) {
1203: $sender = &Apache::loncommon::aboutmewrapper(
1204: $plainname,
1205: $contrib{$idx.':sendername'},
1206: $contrib{$idx.':senderdomain'});
1207: } else {
1208: $sender = $plainname;
1209: }
1210: if ($see_anonymous) {
1211: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1212: $contrib{$idx.':senderdomain'}.')';
1213: }
1214: $sender = '<b>'.$sender.'</b>';
1215: if ($contrib{$idx.':anonymous'}) {
1216: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1217: $screenname;
1218: }
1219: if ($see_anonymous) {
1220: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1221: }
1222: # Set up for sorting by domain, then username
1223: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1224: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1225: }
1226: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1227: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1228: } else {
1229: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1230: }
1231: # Set up for sorting by last name, then first name
1232: my %names = &Apache::lonnet::get('environment',
1233: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1234: ,$contrib{$idx.':sendername'});
1235: my $lastname = $names{'lastname'};
1236: my $firstname = $names{'firstname'};
1237: if ($lastname eq '') {
1238: $lastname = '_';
1239: }
1240: if ($firstname eq '') {
1241: $firstname = '_';
1242: }
1243: unless (defined($$namesort{$lastname})) {
1244: %{$$namesort{$lastname}} = ();
1245: }
1246: if (defined($$namesort{$lastname}{$firstname})) {
1247: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1248: } else {
1249: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1250: }
1251: if ($outputtarget ne 'tex') {
1252: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1253: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1254: $sender.=' <a href="/adm/feedback?editdisc='.
1255: $escsymb.':::'.$idx;
1256: if ($$newpostsflag) {
1257: $sender .= '&previous='.$prevread;
1258: }
1259: $sender .= &group_args($group);
1260: $sender .= '" '.$target.'>'.&mt('Edit').'</a>';
1261:
1262: unless ($seehidden) {
1263: my $grpargs = &group_args($group);
1264: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1265: $sender .= '">'.&mt('Delete').'</a>';
1266: }
1267: }
1268: }
1269: if ($seehidden) {
1270: if ($hiddens{$idx}) {
1271: unless ($studenthidden) {
1272: $sender.=' <a href="/adm/feedback?unhide='.
1273: $escsymb.':::'.$idx;
1274: if ($$newpostsflag) {
1275: $sender .= '&previous='.$prevread;
1276: }
1277: $sender .= '">'.&mt('Make Visible').'</a>';
1278: }
1279: } else {
1280: $sender.=' <a href="/adm/feedback?hide='.
1281: $escsymb.':::'.$idx;
1282: if ($$newpostsflag) {
1283: $sender .= '&previous='.$prevread;
1284: }
1285: $sender .= &group_args($group);
1286: $sender .= '">'.&mt('Hide').'</a>';
1287: }
1288: my $grpargs = &group_args($group);
1289: $sender.=
1290: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1291: $sender .= &mt('Delete').'</a>';
1292: }
1293: }
1294: } else {
1295: if ($screenname) {
1296: $sender='<i>'.$screenname.'</i>';
1297: } else {
1298: $sender='<i>'.$$anonhash{$key}.'</i>';
1299: }
1300: $sender = '<b>'.$sender.'</b>';
1301: # Set up for sorting by domain, then username for anonymous
1302: unless (defined($$usernamesort{'__anon'})) {
1303: %{$$usernamesort{'__anon'}} = ();
1304: }
1305: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1306: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1307: } else {
1308: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1309: }
1310: # Set up for sorting by last name, then first name for anonymous
1311: unless (defined($$namesort{'__anon'})) {
1312: %{$$namesort{'__anon'}} = ();
1313: }
1314: if (defined($$namesort{'__anon'}{'__anon'})) {
1315: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1316: } else {
1317: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1318: }
1319: }
1320: if ($outputtarget ne 'tex') {
1321: if (&discussion_open($status)) {
1322: if (($group ne '') &&
1323: (&check_group_priv($group,'pgd') eq 'ok')) {
1324: $sender.=' <a href="/adm/feedback?replydisc='.
1325: $escsymb.':::'.$idx;
1326: if ($$newpostsflag) {
1327: $sender .= '&previous='.$prevread;
1328: }
1329: $sender .= &group_args($group);
1330: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1331: } elsif (&Apache::lonnet::allowed('pch',
1332: $env{'request.course.id'}.
1333: ($env{'request.course.sec'}?'/'.
1334: $env{'request.course.sec'}:''))) {
1335: $sender.=' <a href="/adm/feedback?replydisc='.
1336: $escsymb.':::'.$idx;
1337: if ($$newpostsflag) {
1338: $sender .= '&previous='.$prevread;
1339: }
1340: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1341: }
1342: }
1343: if ($viewgrades) {
1344: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1345: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1346: }
1347: if ($$dischash{$readkey}=~/\.$idx\./) {
1348: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1349: } else {
1350: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1351: }
1352: }
1353: }
1354: #figure out at what position this needs to print
1355: }
1356: if ($outputtarget eq 'export' || $message) {
1357: my $thisindex=$idx;
1358: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1359: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1360: }
1361: $$alldiscussion{$thisindex}=$idx;
1362: $$shown{$idx} = 0;
1363: $index[$idx]=$thisindex;
1364: }
1365: if ($outputtarget eq 'export') {
1366: %{$$imsitems{$idx}} = ();
1367: $$imsitems{$idx}{'isvisible'}='true';
1368: if ($hiddens{$idx}) {
1369: $$imsitems{$idx}{'isvisible'}='false';
1370: }
1371: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1372: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1373: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1374: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1375: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1376: $contrib{$idx.':sendername'}.':'.
1377: $contrib{$idx.':senderdomain'}.')';
1378: $$imsitems{$idx}{'isanonymous'}='false';
1379: if ($contrib{$idx.':anonymous'}) {
1380: $$imsitems{$idx}{'isanonymous'}='true';
1381: }
1382: $$imsitems{$idx}{'currversion'}=$numoldver;
1383: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1384: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1385: $$shown{$idx} = 1;
1386: }
1387: } else {
1388: if ($message) {
1389: my $spansize = 2;
1390: my ($uname,$udom);
1391: if ($showonlyunread && $prevread > $posttime) {
1392: $$notshown{$idx} = 1;
1393: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1394: $$notshown{$idx} = 1;
1395: } else {
1396: # apply filters
1397: $uname = $contrib{$idx.':sendername'};
1398: $udom = $contrib{$idx.':senderdomain'};
1399: my $poster = $uname.':'.$udom;
1400: if ($env{'form.totposters'} ne '') {
1401: if ($totposters == 0) {
1402: $$shown{$idx} = 0;
1403: } elsif ($totposters > 0) {
1404: if (grep/^$poster$/,@{$posters}) {
1405: $$shown{$idx} = 1;
1406: }
1407: }
1408: } elsif ($sortposts) {
1409: if ($skiptest) {
1410: $$shown{$idx} = 1;
1411: } else {
1412: foreach my $role (@{$$roleinfo{$poster}}) {
1413: if ($role =~ /^cc:/) {
1414: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1415: if ($role =~ /$cc_regexp/) {
1416: $$shown{$idx} = 1;
1417: last;
1418: }
1419: } elsif ($role =~ /^$rolematch$/) {
1420: $$shown{$idx} = 1;
1421: last;
1422: }
1423: }
1424: }
1425: if ($$shown{$idx} && !$skip_group_check) {
1426: my $showflag = 0;
1427: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1428: foreach my $grp (@{$grouppick}) {
1429: if (grep/^\Q$grp\E$/,
1430: keys(%{$$classgroups{$poster}{active}})) {
1431: $showflag = 1;
1432: last;
1433: }
1434: }
1435: }
1436: if ($showflag) {
1437: $$shown{$idx} = 1;
1438: } else {
1439: $$shown{$idx} = 0;
1440: }
1441: }
1442: } else {
1443: $$shown{$idx} = 1;
1444: }
1445: }
1446: unless ($$notshown{$idx} == 1) {
1447: if ($prevread > 0 && $prevread <= $posttime) {
1448: $$newitem{$idx} = 1;
1449: $$discussionitems[$idx] .= '
1450: <table border="0" width="100%">
1451: <tr><td align="left"><font color="#FF0000"><b>'.&mt('NEW').' </b></font></td>';
1452: } else {
1453: $$newitem{$idx} = 0;
1454: $$discussionitems[$idx] .= '
1455: <table border="0" width="100%">
1456: <tr><td align="left"> </td>';
1457: }
1458: $$discussionitems[$idx] .= '<td align="left"> '.
1459: '<b>'.$subject.'</b> '.
1460: $sender.' '.$vgrlink.' ('.
1461: &Apache::lonlocal::locallocaltime($posttime).')</td>';
1462: if ($$dischash{$toggkey}) {
1463: $$discussionitems[$idx].='<td align="right"> '.
1464: $ctlink.'</td>';
1465: }
1466: my $likesize="100";
1467: if ($seeid || $canvote) {
1468: # Figure out size based on likes
1469: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1470: if ($thislikes>$twoplus) {
1471: $likesize="200";
1472: } elsif ($thislikes>$oneplus) {
1473: $likesize="150";
1474: }
1475: if ($thislikes<$twominus) {
1476: $likesize="50";
1477: } elsif ($thislikes<$oneminus) {
1478: $likesize="75";
1479: }
1480: }
1481: # Actually glue in the message itself
1482: $$discussionitems[$idx].= '</tr></table><blockquote>'.
1483: "<div style='font-size:$likesize%'>".
1484: $message.
1485: '</div></blockquote>';
1486: if ($canvote) {
1487: my $ownpost;
1488: if (($uname eq $env{'user.name'}) &&
1489: ($udom eq $env{'user.domain'})) {
1490: $ownpost = 1;
1491: }
1492: # Put in the like and unlike buttons
1493: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1494: my $novote;
1495: if ($ownpost) {
1496: $novote = &mt('No voting for your own posts.');
1497: } else {
1498: $novote = &mt('No voting for hidden posts.');
1499: }
1500: $$discussionitems[$idx].=
1501: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1502: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1503: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1504: } else {
1505: if ($userlikes{$idx}) {
1506: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1507: } else {
1508: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1509: }
1510: if ($userunlikes{$idx}) {
1511: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1512: } else {
1513: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1514: }
1515: }
1516: }
1517: if ($seeid || $canvote) {
1518: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1519: if ($thislikes>0) {
1520: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1521: } elsif ($thislikes<0) {
1522: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1523: }
1524: }
1525: # If there is any history to this post, inform the reader
1526: if ($contrib{$idx.':history'}) {
1527: my @postversions = ();
1528: $$discussionitems[$idx] .= &mt('This post has been edited by the author.');
1529: if ($seehidden) {
1530: $$discussionitems[$idx] .= ' <a href="/adm/feedback?allversions='.$escsymb.':::'.$idx;
1531: $$discussionitems[$idx] .= &group_args($group);
1532: $$discussionitems[$idx] .= '">'.&mt('Display all versions').'</a>';
1533: }
1534: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1535: if ($contrib{$idx.':history'} =~ m/:/) {
1536: @postversions = split(/:/,$contrib{$idx.':history'});
1537: } else {
1538: @postversions = ("$contrib{$idx.':history'}");
1539: }
1540: for (my $i=0; $i<@postversions; $i++) {
1541: my $version = $i+1;
1542: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1543: }
1544: }
1545: }
1546: }
1547: }
1548: }
1549: }
1550: }
1551: }
1552:
1553: sub filter_regexp {
1554: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1555: my ($roleregexp,$secregexp,$statusregexp);
1556: my $skiptest = 1;
1557: if (@{$rolefilter} > 0) {
1558: my @okrolefilter = ();
1559: foreach my $role (@{$rolefilter}) {
1560: unless ($role eq '') {
1561: push(@okrolefilter, $role);
1562: }
1563: }
1564: if (@okrolefilter > 0) {
1565: if (grep/^all$/,@okrolefilter) {
1566: $roleregexp='[^:]+';
1567: } else {
1568: if (@okrolefilter == 1) {
1569: $roleregexp=$okrolefilter[0];
1570: } else {
1571: $roleregexp='('.join('|',@okrolefilter).')';
1572: }
1573: $skiptest = 0;
1574: }
1575: }
1576: }
1577: if (@{$sectionpick} > 0) {
1578: my @oksectionpick = ();
1579: foreach my $sec (@{$sectionpick}) {
1580: unless ($sec eq '') {
1581: push(@oksectionpick, $sec);
1582: }
1583: }
1584: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1585: if (@oksectionpick == 1) {
1586: $secregexp = $oksectionpick[0];
1587: } else {
1588: $secregexp .= '('.join('|',@oksectionpick).')';
1589: }
1590: $skiptest = 0;
1591: } else {
1592: $secregexp .= '[^:]*';
1593: }
1594: }
1595:
1596: if (defined($statusfilter) && $statusfilter ne '') {
1597: if ($statusfilter eq 'all') {
1598: $statusregexp = '[^:]+';
1599: } else {
1600: $statusregexp = $statusfilter;
1601: $skiptest = 0;
1602: }
1603: }
1604: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1605: }
1606:
1607:
1608: sub get_post_contents {
1609: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1610: my $discussion = '';
1611: my $start=$numver;
1612: my $end=$numver + 1;
1613: %{$$imsfiles{$idx}}=();
1614: if ($type eq 'allversions') {
1615: unless($seehidden) {
1616: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1617: return $discussion;
1618: }
1619: }
1620: # $$screenname=&Apache::loncommon::screenname(
1621: # $$contrib{$idx.':sendername'},
1622: # $$contrib{$idx.':senderdomain'});
1623: $$plainname=&Apache::loncommon::nickname(
1624: $$contrib{$idx.':sendername'},
1625: $$contrib{$idx.':senderdomain'});
1626: $$screenname=$$contrib{$idx.':screenname'};
1627: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1628: $$contrib{$idx.':senderdomain'},
1629: 'aboutme');
1630: my $sender = $$plainname;
1631: if ($$showaboutme) {
1632: $sender = &Apache::loncommon::aboutmewrapper(
1633: $$plainname,
1634: $$contrib{$idx.':sendername'},
1635: $$contrib{$idx.':senderdomain'});
1636: }
1637: if ($seeid) {
1638: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1639: $$contrib{$idx.':senderdomain'}.')';
1640: }
1641: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1642: my @postversions = ();
1643: if ($type eq 'allversions' || $type eq 'export') {
1644: $start = 0;
1645: if ($$contrib{$idx.':history'}) {
1646: @postversions = split(/:/,$$contrib{$idx.':history'});
1647: }
1648: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1649: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1650: push(@postversions,$$contrib{$idx.':timestamp'});
1651: $end = @postversions;
1652: } else {
1653: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1654: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1655: }
1656:
1657: if ($$contrib{$idx.':anonymous'}) {
1658: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1659: }
1660: if ($type eq 'allversions') {
1661: $discussion=('<b>'.$sender.'</b><br /><ul>');
1662: }
1663: for (my $i=$start; $i<$end; $i++) {
1664: my ($timesent,$attachmsg);
1665: my %currattach = ();
1666: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1667: unless (&contains_block_html($messages->{$i})) {
1668: &newline_to_br(\$messages->{$i});
1669: }
1670: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1671: $$subjects{$i}=~s/\n/\<br \/\>/g;
1672: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1673: if ($attachmenturls) {
1674: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1675: }
1676: if ($type eq 'export') {
1677: $$imsfiles{$idx}{$i} = '';
1678: if ($attachmsg) {
1679: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1680: foreach my $key (sort(keys(%currattach))) {
1681: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1682: my $fname = $1.$3.'/'.$4;
1683: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1684: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1685: }
1686: }
1687: }
1688: } else {
1689: if ($attachmsg) {
1690: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1691: } else {
1692: $$attachtxt{$i} = '';
1693: }
1694: }
1695: if ($type eq 'allversions') {
1696: $discussion.= <<"END";
1697: <li><b>$$subjects{$i}</b>, $timesent<br />
1698: $$messages{$i}<br />
1699: $$attachtxt{$i}</li>
1700: END
1701: }
1702: }
1703: if ($type eq 'allversions') {
1704: $discussion.='</ul>';
1705: return $discussion;
1706: } else {
1707: return;
1708: }
1709: }
1710:
1711: sub replicate_attachments {
1712: my ($attachrefs,$tempexport) = @_;
1713: my $response;
1714: foreach my $id (keys(%{$attachrefs})) {
1715: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1716: my $path = $tempexport;
1717: my $tail = $1.'/'.$2.$4;
1718: my @extras = split(/\//,$tail);
1719: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1720: if (!-e $destination) {
1721: my $i= 0;
1722: while ($i<@extras) {
1723: $path .= '/'.$extras[$i];
1724: if (!-e $path) {
1725: mkdir($path,0700);
1726: }
1727: $i ++;
1728: }
1729: my ($content,$rtncode);
1730: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1731: if ($uploadreply eq 'ok') {
1732: my $attachcopy;
1733: if ($attachcopy = Apache::File->new('>'.$destination)) {
1734: print $attachcopy $content;
1735: close($attachcopy);
1736: } else {
1737: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1738: }
1739: } else {
1740: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1741: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1742: }
1743: }
1744: }
1745: }
1746: return $response;
1747: }
1748:
1749: sub mail_screen {
1750: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1751: if (exists($env{'form.origpage'})) {
1752: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1753: }
1754:
1755: my %lt = &Apache::lonlocal::texthash(
1756: 'myqu' => 'My question/comment/feedback:',
1757: 'title' => 'Title',
1758: 'reta' => 'Retained attachments',
1759: 'atta' => 'Attachment',
1760: );
1761: my $restitle = &get_resource_title($caller_symb,$feedurl);
1762: my $quote='';
1763: my $subject = '';
1764: my $comment = '';
1765: my $prevtag = '';
1766: my $parentmsg = '';
1767: my ($symb,$idx,$attachmenturls);
1768: my $numoldver = 0;
1769: my $attachmsg = '';
1770: my $newattachmsg = '';
1771: my @currnewattach = ();
1772: my @currdelold = ();
1773: my @keepold = ();
1774: my %attachments = ();
1775: my %currattach = ();
1776: my $attachnum = 0;
1777: my $anonchk = (<<END);
1778: function anonchk() {
1779: for (var i=0; i < document.mailform.discuss.length; i++) {
1780: if (document.mailform.discuss[i].checked) {
1781: document.attachment.discuss.value =
1782: document.mailform.discuss[i].value;
1783: }
1784: }
1785: if (document.mailform.blog.checked) {
1786: document.attachment.blog.value = 1;
1787: }
1788: return
1789: }
1790: END
1791: my $anonscript;
1792: if (exists($env{'form.origpage'})) {
1793: $anonscript = (<<END);
1794: function setposttype() {
1795: var disc = "$env{'form.discuss'}";
1796: for (var i=0; i < document.mailform.discuss.length; i++) {
1797: if (disc == document.mailform.discuss[i].value) {
1798: document.mailform.discuss[i].checked = 1;
1799: }
1800: }
1801: var blog = "$env{'form.blog'}";
1802: if (blog == 1) {
1803: document.mailform.blog.checked=1;
1804: }
1805: return
1806: }
1807: END
1808: } else {
1809: $anonscript = (<<END);
1810: function setposttype() {
1811: return
1812: }
1813: END
1814: }
1815: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1816: if ($env{'form.replydisc'}) {
1817: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1818: } else {
1819: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1820: }
1821: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1822: $env{'course.'.$env{'request.course.id'}.'.domain'},
1823: $env{'course.'.$env{'request.course.id'}.'.num'});
1824: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1825: my $numoldver = 0;
1826: if ($contrib{$idx.':history'}) {
1827: if ($contrib{$idx.':history'} =~ /:/) {
1828: my @oldversions = split(/:/,$contrib{$idx.':history'});
1829: $numoldver = @oldversions;
1830: } else {
1831: $numoldver = 1;
1832: }
1833: }
1834: if ($idx > 0) {
1835: my (%msgversions,%subversions,$htmldecode);
1836: $htmldecode = 0;
1837: if ($env{'form.replydisc'}) {
1838: $htmldecode = 1;
1839: }
1840: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1841: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1842: $numoldver);
1843: $subject = $subversions{$numoldver};
1844: if ($env{'form.replydisc'}) {
1845: $quote = $msgversions{$numoldver};
1846: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1847: } else {
1848: $comment = $msgversions{$numoldver};
1849: }
1850: }
1851: if ($env{'form.editdisc'}) {
1852: $attachmenturls = $contrib{$idx.':attachmenturl'};
1853: if (defined($contrib{$idx.':replyto'})) {
1854: $parentmsg = $contrib{$idx.':replyto'};
1855: }
1856: unless (exists($env{'form.origpage'})) {
1857: my $anonflag = 'nonanon';
1858: if ($contrib{$idx.':anonymous'}) {
1859: $anonflag = 'anon';
1860: }
1861: $anonscript = (<<END);
1862: function setposttype () {
1863: var currtype = "$anonflag";
1864: for (var i=0; i<document.mailform.discuss.length; i++) {
1865: if (document.mailform.elements.discuss[i].value == currtype ) {
1866: document.mailform.elements.discuss[i].checked=1;
1867: }
1868: }
1869: return
1870: }
1871: END
1872: }
1873: }
1874: }
1875: if ($env{'form.previous'}) {
1876: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1877: }
1878: }
1879:
1880: if ($env{'form.origpage'}) {
1881: $subject = &unescape($env{'form.subject'});
1882: $comment = &unescape($env{'form.comment'});
1883: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1884: }
1885: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1);
1886: my $send=&mt('Send');
1887: my $alert = &mt('Please select a feedback type.');
1888: my $js= <<END;
1889: <script type="text/javascript">
1890: //<!--
1891: function gosubmit() {
1892: var rec=0;
1893: if (typeof(document.mailform.elements.discuss)!="undefined") {
1894: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1895: if (document.mailform.elements.discuss.checked ) {
1896: rec=1;
1897: }
1898: } else {
1899: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1900: if (document.mailform.elements.discuss[i].checked ) {
1901: rec=1;
1902: }
1903: }
1904: }
1905: }
1906: if (typeof(document.mailform.elements.blog)!="undefined") {
1907: if (document.mailform.elements.blog.checked) {
1908: rec=1;
1909: }
1910: }
1911:
1912: if (rec) {
1913: if (typeof(document.mailform.onsubmit)=='function') {
1914: document.mailform.onsubmit();
1915: }
1916: document.mailform.submit();
1917: } else {
1918: alert('$alert');
1919: }
1920: }
1921: $anonchk
1922: $anonscript
1923: //-->
1924: </script>
1925: END
1926:
1927: my ($textareaheader,$textareaclass);
1928: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1929: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1930: $textareaclass = 'class="LC_richDefaultOff"';
1931: if ($env{'request.course.id'}) {
1932: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1933: undef($textareaclass);
1934: }
1935: }
1936: }
1937:
1938: # Breadcrumbs
1939: my $brcrum = [{'href' => '',
1940: 'text' => 'Resource Feedback and Discussion'}];
1941:
1942: my %onload = ('onload' => 'window.focus();setposttype();');
1943: my $start_page=
1944: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,
1945: {'add_entries' => \%onload,
1946: 'bread_crumbs' => $brcrum,});
1947:
1948: if ($quote ne '') {
1949: $quote = &HTML::Entities::decode($quote);
1950: unless (&contains_block_html($quote)) {
1951: &newline_to_br(\$quote);
1952: }
1953: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($quote).'</blockquote>';
1954: }
1955:
1956: $r->print(<<END);
1957: $start_page
1958: <h2><tt>$restitle</tt></h2>
1959: <form action="/adm/feedback" method="post" name="mailform"
1960: enctype="multipart/form-data">
1961: $prevtag
1962: <input type="hidden" name="postdata" value="$feedurl" />
1963: END
1964: if ($env{'form.replydisc'}) {
1965: $r->print(<<END);
1966: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1967: END
1968: } elsif ($env{'form.editdisc'}) {
1969: $r->print(<<END);
1970: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1971: <input type="hidden" name="parentmsg" value="$parentmsg" />
1972: END
1973: }
1974: $r->print(<<END);
1975: $options<hr />
1976: $quote
1977: <p>$lt{'myqu'}
1978: $textareaheader
1979: </p>
1980: <p>
1981: $latexHelp
1982: </p>
1983: <p>
1984: $lt{'title'}: <input type="text" name="subject" size="30" value="$subject" /></p>
1985: <p>
1986: <textarea name="comment" id="comment" cols="60" rows="10" $textareaclass>$comment
1987: </textarea></p>
1988: END
1989: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1990: if ($env{'form.origpage'}) {
1991: foreach my $attach (@currnewattach) {
1992: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
1993: }
1994: foreach my $oldatt (@currdelold) {
1995: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
1996: }
1997: }
1998: if ($env{'form.editdisc'}) {
1999: if ($attachmenturls) {
2000: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2001: $attachnum = scalar(keys(%currattach));
2002: foreach my $key (keys(%currattach)) {
2003: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2004: }
2005: }
2006: }
2007: } else {
2008: $r->print(<<END);
2009: <p>
2010: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
2011: </p>
2012: END
2013: }
2014: if (exists($env{'form.group'})) {
2015: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2016: }
2017: if (exists($env{'form.ref'})) {
2018: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2019: }
2020: $r->print(<<END);
2021: <p>
2022: <input type="hidden" name="sendit" value="1" />
2023: <input type="button" value="$send" onclick='gosubmit();' />
2024: </p>
2025: </form>
2026: END
2027: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2028: my $now = time;
2029: my $ressymb = $symb;
2030: &Apache::lonenc::check_encrypt(\$ressymb);
2031: my $postidx = '';
2032: if ($env{'form.editdisc'}) {
2033: $postidx = $idx;
2034: }
2035: if (@currnewattach > 0) {
2036: $attachnum += @currnewattach;
2037: }
2038: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2039: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2040: if ($attachnum > 0) {
2041: if (@currnewattach > 0) {
2042: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2043: if (@currnewattach > 1) {
2044: $newattachmsg .= '<ol>';
2045: foreach my $item (@currnewattach) {
2046: $item =~ m#.*/([^/]+)$#;
2047: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2048: }
2049: $newattachmsg .= '</ol>'."\n";
2050: } else {
2051: $currnewattach[0] =~ m#.*/([^/]+)$#;
2052: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2053: }
2054: }
2055: if ($attachmsg) {
2056: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2057: }
2058: if ($newattachmsg) {
2059: $r->print("$newattachmsg<br />");
2060: }
2061: }
2062: }
2063: $r->print(&generate_preview_button().
2064: &Apache::loncommon::end_page());
2065:
2066: }
2067:
2068: sub print_display_options {
2069: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2070: &Apache::loncommon::content_type($r,'text/html');
2071: $r->send_http_header;
2072:
2073: my $function = &Apache::loncommon::get_users_function();
2074: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2075: $env{'user.domain'});
2076:
2077: my %lt = &Apache::lonlocal::texthash(
2078: 'pref' => 'Display Preference',
2079: 'curr' => 'Current setting ',
2080: 'actn' => 'Action',
2081: 'deff' => 'Default for all discussions',
2082: 'prca' => 'Preferences can be set for this discussion that determine ....',
2083: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2084: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2085: 'wipa' => 'Whether individual posts can be marked as read/unread',
2086: 'allposts' => 'All posts',
2087: 'unread' => 'New posts only',
2088: 'unmark' => 'Posts not marked read',
2089: 'ondisp' => 'Once displayed',
2090: 'onmark' => 'Once marked not NEW',
2091: 'toggon' => 'Shown',
2092: 'toggoff' => 'Not shown',
2093: 'disa' => 'Posts displayed?',
2094: 'npmr' => 'New posts cease to be identified as "NEW"?',
2095: 'dotm' => 'Option to mark each post as read/unread?',
2096: 'chgt' => 'Change to ',
2097: 'mkdf' => 'Set to ',
2098: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2099: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2100: );
2101:
2102: my $dispchangeA = $lt{'unread'};
2103: my $dispchangeB = $lt{'unmark'};
2104: my $markchange = $lt{'ondisp'};
2105: my $toggchange = $lt{'toggon'};
2106: my $currdisp = $lt{'allposts'};
2107: my $currmark = $lt{'onmark'};
2108: my $discdisp = 'allposts';
2109: my $discmark = 'onmark';
2110: my $currtogg = $lt{'toggoff'};
2111: my $disctogg = 'toggoff';
2112:
2113: if ($dispchgA eq 'allposts') {
2114: $dispchangeA = $lt{'allposts'};
2115: $currdisp = $lt{'unread'};
2116: $discdisp = 'unread';
2117: }
2118:
2119: if ($markchg eq 'markonread') {
2120: $markchange = $lt{'onmark'};
2121: $currmark = $lt{'ondisp'};
2122: $discmark = 'ondisp';
2123: }
2124:
2125: if ($dispchgB eq 'onlyunread') {
2126: $dispchangeB = $lt{'unread'};
2127: $currdisp = $lt{'unmark'};
2128: $discdisp = 'unmark';
2129: }
2130: if ($toggchg eq 'toggoff') {
2131: $toggchange = $lt{'toggoff'};
2132: $currtogg = $lt{'toggon'};
2133: $disctogg = 'toggon';
2134: }
2135:
2136: my $js = <<END;
2137: <script type="text/javascript">
2138: function discdispChk(caller) {
2139: var disctogg = '$toggchg'
2140: if (caller == 0) {
2141: if (document.modifydisp.discdisp[0].checked == true) {
2142: if (document.modifydisp.discdisp[1].checked == true) {
2143: document.modifydisp.discdisp[1].checked = false
2144: }
2145: }
2146: }
2147: if (caller == 1) {
2148: if (document.modifydisp.discdisp[1].checked == true) {
2149: if (document.modifydisp.discdisp[0].checked == true) {
2150: document.modifydisp.discdisp[0].checked = false
2151: }
2152: if (disctogg == 'toggon') {
2153: document.modifydisp.disctogg.checked = true
2154: }
2155: if (disctogg == 'toggoff') {
2156: document.modifydisp.disctogg.checked = false
2157: }
2158: }
2159: }
2160: if (caller == 2) {
2161: var dispchgB = '$dispchgB'
2162: if (disctogg == 'toggoff') {
2163: if (document.modifydisp.disctogg.checked == true) {
2164: if (dispchgB == 'onlyunmark') {
2165: document.modifydisp.discdisp[1].checked = false
2166: }
2167: }
2168: }
2169: }
2170: }
2171:
2172: function setDisp() {
2173: var prev = "$previous"
2174: var chktotal = 0
2175: if (document.modifydisp.discdisp[0].checked == true) {
2176: document.modifydisp.$dispchgA.value = "$symb"
2177: chktotal ++
2178: }
2179: if (document.modifydisp.discdisp[1].checked == true) {
2180: document.modifydisp.$dispchgB.value = "$symb"
2181: chktotal ++
2182: }
2183: if (document.modifydisp.discmark.checked == true) {
2184: document.modifydisp.$markchg.value = "$symb"
2185: chktotal ++
2186: }
2187: if (document.modifydisp.disctogg.checked == true) {
2188: document.modifydisp.$toggchg.value = "$symb"
2189: chktotal ++
2190: }
2191: if (chktotal > 0) {
2192: document.modifydisp.submit()
2193: } else {
2194: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2195: if (prev > 0) {
2196: location.href = "$feedurl?previous=$previous"
2197: } else {
2198: location.href = "$feedurl"
2199: }
2200: }
2201: }
2202: }
2203: </script>
2204: END
2205:
2206:
2207: my $start_page =
2208: &Apache::loncommon::start_page('Discussion display options',$js);
2209: my $end_page =
2210: &Apache::loncommon::end_page();
2211: $r->print(<<END);
2212: $start_page
2213: <form name="modifydisp" method="post" action="/adm/feedback">
2214: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2215: <br />
2216: END
2217: $r->print(&Apache::loncommon::start_data_table());
2218: $r->print(<<END);
2219: <tr>
2220: <th>$lt{'pref'}</td>
2221: <th>$lt{'curr'}</td>
2222: <th>$lt{'actn'}?</td>
2223: </tr>
2224: END
2225: $r->print(&Apache::loncommon::start_data_table_row());
2226: $r->print(<<END);
2227: <td>$lt{'disa'}</td>
2228: <td>$lt{$discdisp}</td>
2229: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2230: <br />
2231: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2232: </td>
2233: END
2234: $r->print(&Apache::loncommon::end_data_table_row());
2235: $r->print(&Apache::loncommon::start_data_table_row());
2236: $r->print(<<END);
2237: <td>$lt{'npmr'}</td>
2238: <td>$lt{$discmark}</td>
2239: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2240: END
2241: $r->print(&Apache::loncommon::end_data_table_row());
2242: $r->print(&Apache::loncommon::start_data_table_row());
2243: $r->print(<<END);
2244: <td>$lt{'dotm'}</td>
2245: <td>$lt{$disctogg}</td>
2246: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2247: END
2248: my $save = &mt('Save');
2249: $r->print(&Apache::loncommon::end_data_table_row());
2250: $r->print(&Apache::loncommon::end_data_table());
2251: $r->print(<<END);
2252: <br />
2253: <br />
2254: <input type="hidden" name="symb" value="$symb" />
2255: <input type="hidden" name="previous" value="$previous" />
2256: <input type="hidden" name="$dispchgA" value="" />
2257: <input type="hidden" name="$dispchgB" value="" />
2258: <input type="hidden" name="$markchg" value="" />
2259: <input type="hidden" name="$toggchg" value="" />
2260: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2261: END
2262: if (exists($env{'form.group'})) {
2263: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2264: }
2265: if (exists($env{'form.ref'})) {
2266: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2267: }
2268: $r->print("
2269: <br />
2270: <br />
2271: </form>
2272: $end_page
2273: ");
2274: return;
2275: }
2276:
2277: sub print_sortfilter_options {
2278: my ($r,$symb,$previous,$feedurl) = @_;
2279:
2280: &Apache::loncommon::content_type($r,'text/html');
2281: $r->send_http_header;
2282:
2283: &Apache::lonenc::check_encrypt(\$symb);
2284: my @sections;
2285: my $section_sel = '';
2286: my $numvisible = 5;
2287: my @groups;
2288: my $group_sel = '';
2289: my $numgroupvis = 5;
2290: my %sectioncount = &Apache::loncommon::get_sections();
2291: my @courseroles = qw(st ad ep ta in);
2292: my $crstype = &Apache::loncommon::course_type();
2293: my $ccrole = 'cc';
2294: if ($crstype eq 'Community') {
2295: $ccrole = 'co';
2296: }
2297: push(@courseroles,$ccrole);
2298:
2299: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2300: @sections = ('all',$env{'request.course.sec'});
2301: $numvisible = 2;
2302: } else {
2303: @sections = sort {$a cmp $b} keys(%sectioncount);
2304: if (scalar(@sections) < 4) {
2305: $numvisible = scalar(@sections) + 1;
2306: }
2307: unshift(@sections,'all'); # Put 'all' at the front of the list
2308:
2309: }
2310: foreach my $sec (@sections) {
2311: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2312: }
2313:
2314: if (&check_group_priv() eq 'ok') {
2315: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2316: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2317: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2318: @groups = sort {$a cmp $b} keys(%curr_groups);
2319: if (scalar(@groups) < 4) {
2320: $numgroupvis = scalar(@groups) + 1;
2321: }
2322: unshift(@groups,'all'); # Put 'all' at the front of the list
2323: } else {
2324: my @coursegroups = split(/:/,$env{'request.course.groups'});
2325: if (@coursegroups > 0) {
2326: @coursegroups = sort {$a cmp $b} @coursegroups;
2327: @groups = ('all',@coursegroups);
2328: if (scalar(@groups) < 4) {
2329: $numgroupvis = scalar(@groups) + 1;
2330: }
2331: } else {
2332: @groups = ('all');
2333: $numgroupvis = 1;
2334: }
2335: }
2336: foreach my $group (@groups) {
2337: $group_sel .= " <option value=\"$group\">$group</option>\n";
2338: }
2339:
2340: my $function = &Apache::loncommon::get_users_function();
2341: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2342: $env{'user.domain'});
2343: my %lt = &Apache::lonlocal::texthash(
2344: 'diop' => 'Display Options',
2345: 'curr' => 'Current setting ',
2346: 'actn' => 'Action',
2347: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2348: 'soor' => 'Sort order',
2349: 'spur' => 'Specific user roles',
2350: 'sprs' => 'Specific role status',
2351: 'spse' => 'Specific sections',
2352: 'spgr' => 'Specific groups',
2353: 'psub' => 'Pick specific users (by name)',
2354: 'shal' => 'Show a list of current posters',
2355: 'stor' => 'Save changes',
2356: );
2357:
2358: my %sort_types = ();
2359: my %role_types = ();
2360: my %status_types = ();
2361: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2362:
2363: my $js = <<END;
2364: <script type="text/javascript">
2365: function verifyFilter() {
2366: var rolenum = 0
2367: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2368: if (document.modifyshown.rolefilter.options[i].selected == true) {
2369: rolenum ++
2370: }
2371: }
2372: if (rolenum == 0) {
2373: document.modifyshown.rolefilter.options[0].selected = true
2374: }
2375:
2376: var secnum = 0
2377: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2378: if (document.modifyshown.sectionpick.options[i].selected == true) {
2379: secnum ++
2380: }
2381: }
2382: if (secnum == 0) {
2383: document.modifyshown.sectionpick.options[0].selected = true
2384: }
2385:
2386: var grpnum = 0
2387: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2388: if (document.modifyshown.grouppick.options[i].selected == true) {
2389: grpnum ++
2390: }
2391: }
2392: if (grpnum == 0) {
2393: document.modifyshown.grouppick.options[0].selected = true
2394: }
2395:
2396: document.modifyshown.submit();
2397: }
2398: </script>
2399: END
2400:
2401: my $start_page=
2402: &Apache::loncommon::start_page('Discussion options',$js);
2403: my $end_page=
2404: &Apache::loncommon::end_page();
2405:
2406: $r->print(<<END);
2407: $start_page
2408: <form name="modifyshown" method="post" action="/adm/feedback">
2409: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2410: <br /><br />
2411: <table border="0">
2412: <tr>
2413: <th>$lt{'soor'}</th>
2414: <th> </th>
2415: <th>$lt{'sprs'}</th>
2416: <th> </th>
2417: <th>$lt{'spur'}</th>
2418: <th> </th>
2419: <th>$lt{'spse'}</th>
2420: <th> </th>
2421: <th>$lt{'spgr'}</th>
2422: <th> </th>
2423: <th>$lt{'psub'}</th>
2424: </tr>
2425: <tr>
2426: <td align="center" valign="top">
2427: <select name="sortposts">
2428: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2429: <option value="descdate">$sort_types{'descdate'}</option>
2430: <option value="thread">$sort_types{'thread'}</option>
2431: <option value="subject">$sort_types{'subject'}</option>
2432: <option value="username">$sort_types{'username'}</option>
2433: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2434: </select>
2435: </td>
2436: <td> </td>
2437: <td align="center" valign="top">
2438: <select name="statusfilter">
2439: <option value="all" selected="selected">$status_types{'all'}</option>
2440: <option value="Active">$status_types{'Active'}</option>
2441: <option value="Expired">$status_types{'Expired'}</option>
2442: <option value="Future">$status_types{'Future'}</option>
2443: </select>
2444: </td>
2445: <td> </td>
2446: <td align="center" valign="top">
2447: <select name="rolefilter" multiple="multiple" size="5">
2448: <option value="all">$role_types{'all'}</option>
2449: <option value="st">$role_types{'st'}</option>
2450: <option value="$ccrole">$role_types{$ccrole}</option>
2451: <option value="in">$role_types{'in'}</option>
2452: <option value="ta">$role_types{'ta'}</option>
2453: <option value="ep">$role_types{'ep'}</option>
2454: <option value="ad">$role_types{'ad'}</option>
2455: <option value="cr">$role_types{'cr'}</option>
2456: </select>
2457: </td>
2458: <td> </td>
2459: <td align="center" valign="top">
2460: <select name="sectionpick" multiple="multiple" size="$numvisible">
2461: $section_sel
2462: </select>
2463: </td>
2464: <td> </td>
2465: <td align="center" valign="top">
2466: <select name="grouppick" multiple="multiple" size="$numvisible">
2467: $group_sel
2468: </select>
2469: </td>
2470: <td> </td>
2471: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2472: </tr>
2473: </table>
2474: <br />
2475: <br />
2476: <input type="hidden" name="previous" value="$previous" />
2477: <input type="hidden" name="applysort" value="$symb" />
2478: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2479: END
2480: if (exists($env{'form.group'})) {
2481: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2482: }
2483: if (exists($env{'form.ref'})) {
2484: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2485: }
2486: $r->print("
2487: <br />
2488: <br />
2489: </form>
2490: $end_page
2491: ");
2492: }
2493:
2494: sub print_showposters {
2495: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2496:
2497: &Apache::loncommon::content_type($r,'text/html');
2498: $r->send_http_header;
2499:
2500: &Apache::lonenc::check_encrypt(\$symb);
2501: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2502: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2503: my $group = $env{'form.group'};
2504: my $ressymb = &wrap_symb($symb);
2505: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2506: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2507: $cdom,$cnum);
2508: my %namesort = ();
2509: my %postcounts = ();
2510:
2511: my %lt = &Apache::lonlocal::texthash(
2512: sele => 'Select',
2513: full => 'Fullname',
2514: usdo => 'Username:domain',
2515: post => 'Posts',
2516: );
2517: if ($contrib{'version'}) {
2518: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2519: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2520: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2521: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2522: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2523: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2524: my $lastname = $names{'lastname'};
2525: my $firstname = $names{'firstname'};
2526: if ($lastname eq '') {
2527: $lastname = '_';
2528: }
2529: if ($firstname eq '') {
2530: $firstname = '_';
2531: }
2532: unless (defined($namesort{$lastname})) {
2533: %{$namesort{$lastname}} = ();
2534: }
2535: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2536: $postcounts{$poster} ++;
2537: if (defined($namesort{$lastname}{$firstname})) {
2538: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2539: push(@{$namesort{$lastname}{$firstname}}, $poster);
2540: }
2541: } else {
2542: @{$namesort{$lastname}{$firstname}} = ("$poster");
2543: }
2544: }
2545: }
2546: }
2547: }
2548:
2549: my $start_page = &Apache::loncommon::start_page('Discussion options');
2550: my $table_start =&Apache::loncommon::start_data_table();
2551: $r->print(<<END);
2552: $start_page
2553: <form name="pickpostersform" method="post">
2554: <br />
2555: $table_start
2556: <tr>
2557: <th>#</th>
2558: <th>$lt{'sele'}</th>
2559: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2560: <th>$lt{'post'}</th>
2561: </tr>
2562: END
2563: my $count = 0;
2564: foreach my $last (sort(keys(%namesort))) {
2565: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2566: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2567: my ($uname,$udom) = split(/:/,$user);
2568: if (!$uname || !$udom) {
2569: next;
2570: } else {
2571: $count ++;
2572: $r->print(&Apache::loncommon::start_data_table_row().
2573: '<td align="right">'.$count.'</td>
2574: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2575: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2576: <td>'.$postcounts{$user}.'</td>'.
2577: &Apache::loncommon::end_data_table_row());
2578: }
2579: }
2580: }
2581: }
2582: $r->print(&Apache::loncommon::end_data_table());
2583: my $end_page = &Apache::loncommon::end_page();
2584: $r->print(<<END);
2585: <br />
2586: <input type="hidden" name="sortposts" value="$sortposts" />
2587: <input type="hidden" name="userpick" value="$symb" />
2588: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2589: </form>
2590: $end_page
2591: END
2592: }
2593:
2594: sub get_post_versions {
2595: my ($versions,$incoming,$htmldecode,$numver) = @_;
2596: if ($incoming =~ /^<version num="0">/) {
2597: my $p = HTML::LCParser->new(\$incoming);
2598: my $done = 0;
2599:
2600: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2601: my $num = $token->[1]{num};
2602: my $text = $p->get_text("/version");
2603: if (defined($numver)) {
2604: if ($num == $numver) {
2605: if ($htmldecode) {
2606: $text = &HTML::Entities::decode($text);
2607: }
2608: $$versions{$numver}=$text;
2609: $done = 1;
2610: }
2611: } else {
2612: if ($htmldecode) {
2613: $text = &HTML::Entities::decode($text);
2614: }
2615: $$versions{$num}=$text;
2616: }
2617: }
2618: } else {
2619: if (!defined($numver)) {
2620: $numver = 0;
2621: }
2622: if ($htmldecode) {
2623: $$versions{$numver} = $incoming;
2624: } else {
2625: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2626: }
2627: }
2628: return;
2629: }
2630:
2631: sub get_post_attachments {
2632: my ($attachments,$attachmenturls) = @_;
2633: my $num;
2634: if ($attachmenturls =~ m/^<attachment id="0">/) {
2635: my $p = HTML::LCParser->new(\$attachmenturls);
2636: while (my $token = $p->get_tag("attachment","filename","post")) {
2637: if ($token->[0] eq "attachment") {
2638: $num = $token->[1]{id};
2639: %{$$attachments{$num}} =();
2640: } elsif ($token->[0] eq "filename") {
2641: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2642: } elsif ($token->[0] eq "post") {
2643: my $id = $token->[1]{id};
2644: $$attachments{$num}{$id} = $p->get_text("/post");
2645: }
2646: }
2647: } else {
2648: %{$$attachments{'0'}} = ();
2649: $$attachments{'0'}{'filename'} = $attachmenturls;
2650: $$attachments{'0'}{'0'} = 'n';
2651: }
2652:
2653: return;
2654: }
2655:
2656: sub fail_redirect {
2657: my ($r,$feedurl) = @_;
2658: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2659: my %lt = &Apache::lonlocal::texthash(
2660: 'sorr' => 'Sorry, no recipients ...',
2661: );
2662: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2663: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2664: {'redirect' => [2,$feedurl],
2665: 'only_body' => 1,}));
2666: $r->print(<<ENDFAILREDIR);
2667: <img align="right" src="$logo" />
2668: <b>$lt{'sorr'}</b>
2669: ENDFAILREDIR
2670: $r->print(&Apache::loncommon::end_page());
2671: }
2672:
2673: sub redirect_back {
2674: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2675: my $sorttag = '';
2676: my $roletag = '';
2677: my $statustag = '';
2678: my $sectag = '';
2679: my $grptag = '';
2680: my $userpicktag = '';
2681: my $qrystr = '';
2682: my $prevtag = '';
2683:
2684: &Apache::loncommon::content_type($r,'text/html');
2685: $r->send_http_header;
2686: &dewrapper(\$feedurl);
2687: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2688: if ($previous > 0) {
2689: $qrystr = 'previous='.$previous;
2690: if ($feedurl =~ /\?register=1/) {
2691: $feedurl .= '&'.$qrystr;
2692: } else {
2693: $feedurl .= '?'.$qrystr;
2694: }
2695: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2696: }
2697: if (defined($sort)) {
2698: my $sortqry = 'sortposts='.$sort;
2699: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2700: $feedurl .= '&'.$sortqry;
2701: } else {
2702: $feedurl .= '?'.$sortqry;
2703: }
2704: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2705: if (defined($numpicks)) {
2706: my $userpickqry = 'totposters='.$numpicks;
2707: $feedurl .= '&'.$userpickqry;
2708: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2709: } else {
2710: if (ref($sectionpick) eq 'ARRAY') {
2711: $feedurl .= '&sectionpick=';
2712: $sectag .= '<input type="hidden" name="sectionpick" value="';
2713: foreach my $sec (@{$sectionpick}) {
2714: $feedurl .= $sec.',';
2715: $sectag .= $sec.',';
2716: }
2717: $feedurl =~ s/,$//;
2718: $sectag =~ s/,$//;
2719: $sectag .= '" />';
2720: } else {
2721: $feedurl .= '&sectionpick='.$sectionpick;
2722: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2723: }
2724: if (ref($grouppick) eq 'ARRAY') {
2725: $feedurl .= '&grouppick=';
2726: $sectag .= '<input type="hidden" name="grouppick" value="';
2727: foreach my $grp (@{$grouppick}) {
2728: $feedurl .= $grp.',';
2729: $grptag .= $grp.',';
2730: }
2731: $feedurl =~ s/,$//;
2732: $grptag =~ s/,$//;
2733: $grptag .= '" />';
2734: } else {
2735: $feedurl .= '&grouppick='.$grouppick;
2736: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2737: }
2738: if (ref($rolefilter) eq 'ARRAY') {
2739: $feedurl .= '&rolefilter=';
2740: $roletag .= '<input type="hidden" name="rolefilter" value="';
2741: foreach my $role (@{$rolefilter}) {
2742: $feedurl .= $role.',';
2743: $roletag .= $role.',';
2744: }
2745: $feedurl =~ s/,$//;
2746: $roletag =~ s/,$//;
2747: $roletag .= '" />';
2748: } else {
2749: $feedurl .= '&rolefilter='.$rolefilter;
2750: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2751: }
2752: $feedurl .= '&statusfilter='.$statusfilter;
2753: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2754: }
2755: }
2756: my $grouptag;
2757: if ($group ne '') {
2758: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2759: my $refarg;
2760: if (exists($env{'form.ref'})) {
2761: $refarg = '&ref='.$env{'form.ref'};
2762: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2763: }
2764: if ($feedurl =~ /\?/) {
2765: $feedurl .= '&group='.$group.$refarg;
2766: } else {
2767: $feedurl .= '?group='.$group.$refarg;
2768: }
2769: }
2770: &Apache::lonenc::check_encrypt(\$feedurl);
2771: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2772: my %onload;
2773: if ($env{'environment.remote'} ne 'off') {
2774: $onload{'onload'} =
2775: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
2776: }
2777: my $start_page=
2778: &Apache::loncommon::start_page('Feedback sent',undef,
2779: {'redirect' => [0,$feedurl],
2780: 'only_body' => 1,
2781: 'add_entries' => \%onload});
2782: my $end_page = &Apache::loncommon::end_page();
2783: $r->print(<<ENDREDIR);
2784: $start_page
2785: <img align="right" src="$logo" />
2786: $typestyle
2787: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2788: $blog
2789: $toolarge
2790: <font color="red">$status</font>
2791: <form name="reldt" action="$feedurl" target="loncapaclient">
2792: $prevtag
2793: $sorttag
2794: $statustag
2795: $roletag
2796: $sectag
2797: $grptag
2798: $userpicktag
2799: $grouptag
2800: </form>
2801: $end_page
2802: ENDREDIR
2803: }
2804:
2805: sub no_redirect_back {
2806: my ($r,$feedurl) = @_;
2807: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2808:
2809: my %onload;
2810: if ($env{'environment.remote'} ne 'off') {
2811: $onload{'onload'} =
2812: "if (window.name!='loncapaclient') { self.window.close(); }";
2813: }
2814:
2815: my %body_options = ('only_body' => 1,
2816: 'bgcolor' => '#FFFFFF',
2817: 'add_entries' => \%onload,);
2818:
2819: if ($feedurl !~ m{^/adm/feedback}) {
2820: $body_options{'redirect'} = [2,$feedurl];
2821: }
2822: my $start_page=
2823: &Apache::loncommon::start_page('Feedback not sent',undef,
2824: \%body_options);
2825:
2826: my $end_page = &Apache::loncommon::end_page();
2827:
2828: &Apache::lonenc::check_encrypt(\$feedurl);
2829: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2830: $r->print (<<ENDNOREDIRTWO);
2831: $start_page
2832: <img align="right" src="$logo" />
2833: <b>$nofeed</b>
2834: <br />
2835: $end_page
2836: ENDNOREDIRTWO
2837: }
2838:
2839: sub screen_header {
2840: my ($feedurl,$symb,$group) = @_;
2841: my $crscontent = &mt('Question/Comment/Feedback about course content');
2842: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2843: my $contribdisc = &mt('Contribution to course discussion of resource');
2844: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2845: my $namevis = &mt('name only visible to course faculty');
2846: my $crstype;
2847: if ($env{'request.course.id'}) {
2848: $crstype = &Apache::loncommon::course_type();
2849: if ($crstype eq 'Community') {
2850: $crscontent = &mt('Question/Comment/Feedback about community content');
2851: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2852: $contribdisc = &mt('Contribution to community discussion of resource');
2853: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2854: $namevis = &mt('name only visible to community facilitators');
2855: }
2856: }
2857: my $msgoptions='';
2858: my $discussoptions='';
2859: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2860: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2861: $msgoptions=
2862: '<p><label><input type="radio" name="discuss" value="author" /> '.
2863: &mt('Feedback to resource author').'</label></p>';
2864: }
2865: my %optionhash=();
2866: foreach my $type ('question','comment','policy') {
2867: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2868: }
2869: if (&feedback_available(1)) {
2870: $msgoptions.=
2871: '<p><label><input type="radio" name="discuss" value="question" /> '.
2872: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label></p>';
2873: }
2874: if (&feedback_available(0,1)) {
2875: $msgoptions.=
2876: '<p><label><input type="radio" name="discuss" value="course" /> '.
2877: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2878: '</label></p>';
2879: }
2880: if (&feedback_available(0,0,1)) {
2881: $msgoptions.=
2882: '<p><label><input type="radio" name="discuss" value="policy" /> '.
2883: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2884: '</label></p>';
2885: }
2886: }
2887: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2888: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2889: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2890: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2891: my $realsymb = &get_realsymb($symb);
2892: if (!$blocked && &discussion_open(undef,$realsymb) &&
2893: (&Apache::lonnet::allowed('pch',
2894: $env{'request.course.id'}.
2895: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2896: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2897: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2898: $contribdisc.
2899: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2900: $anoncontrib.
2901: ' <i>('.$namevis.')</i></label> '.
2902: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2903: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2904: if (!$blockblog) {
2905: $discussoptions.= &add_blog_checkbox($crstype);
2906: }
2907: }
2908: }
2909: if ($msgoptions) {
2910: $msgoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2911: .' '.&mt('Send Feedback').'</h2><p>'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</p>'
2912: .$msgoptions;
2913: }
2914: if ($discussoptions) {
2915: $discussoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2916: .' '.&mt('Discussion Contributions').'</h2><p>'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</p>'
2917: .$discussoptions;
2918: }
2919: return $msgoptions.$discussoptions;
2920: }
2921:
2922: sub resource_output {
2923: my ($feedurl) = @_;
2924: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2925: $usersaw=~s/\<body[^\>]*\>//gi;
2926: $usersaw=~s/\<\/body\>//gi;
2927: $usersaw=~s/\<html\>//gi;
2928: $usersaw=~s/\<\/html\>//gi;
2929: $usersaw=~s/\<head\>//gi;
2930: $usersaw=~s/\<\/head\>//gi;
2931: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2932: return $usersaw;
2933: }
2934:
2935: sub clear_out_html {
2936: my ($message,$override)=@_;
2937: # Always allow the <m>-tag
2938: my %html=(M=>1);
2939: # Check if more is allowed
2940: my $cid=$env{'request.course.id'};
2941: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2942: ($override)) {
2943: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2944: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2945: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2946: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2947: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2948: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2949: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2950: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2951: }
2952: # Do the substitution of everything that is not explicitly allowed
2953: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2954: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2955: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2956: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2957: return $message;
2958: }
2959:
2960: sub assemble_email {
2961: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2962: my %lt = &Apache::lonlocal::texthash(
2963: 'prev' => 'Previous attempts of student (if applicable)',
2964: 'orig' => 'Original screen output (if applicable)',
2965: 'corr' => 'Correct Answer(s) (if applicable)',
2966: );
2967: if (&Apache::loncommon::course_type() eq 'Community') {
2968: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2969: }
2970: my $email=<<"ENDEMAIL";
2971: $message
2972: ENDEMAIL
2973: my $citations=<<"ENDCITE";
2974: <h2>$lt{'prev'}</h2>
2975: $prevattempts
2976: <br /><hr />
2977: <h2>$lt{'orig'}</h2>
2978: $usersaw
2979: <h2>$lt{'corr'}</h2>
2980: $useranswer
2981: ENDCITE
2982: return ($email,$citations);
2983: }
2984:
2985:
2986: sub feedback_available {
2987: my ($question,$course,$policy)=@_;
2988: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2989: $course,$policy);
2990: return scalar(%to);
2991: }
2992:
2993: sub send_msg {
2994: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2995: my $status='';
2996: my $sendsomething=0;
2997: my $restitle = &get_resource_title($symb,$feedurl);
2998: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2999: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3000: foreach my $key (keys(%to)) {
3001: if ($key) {
3002: my ($user,$domain) = split(/\:/,$key,2);
3003: if (!defined($user)) {
3004: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3005: } elsif (!defined($domain)) {
3006: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3007: } else {
3008: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3009: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3010: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
3011: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3012: } else {
3013: $sendsomething++;
3014: }
3015: }
3016: }
3017: }
3018:
3019:
3020: my %record=&Apache::lonnet::restore('_feedback');
3021: my ($temp)=keys(%record);
3022: unless ($temp=~/^error\:/) {
3023: my %newrecord=();
3024: $newrecord{'resource'}=$feedurl;
3025: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3026: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3027: $status.='<br />'.&mt('Not registered').'<br />';
3028: }
3029: }
3030:
3031: return ($status,$sendsomething);
3032: }
3033:
3034: # Store feedback "likes"
3035:
3036: sub storefeedbacklikes {
3037: my ($likes,$uname,$udom,$course)=@_;
3038: unless ($likes) { $likes=0; }
3039: if ($likes>0) { $likes=1; }
3040: if ($likes<0) { $likes=-1; }
3041: unless ($uname) { $uname=$env{'user.name'}; }
3042: unless ($udom) { $udom=$env{'user.domain'}; }
3043: unless ($course) { $course=$env{'request.course.id'}; }
3044: my %record=&getfeedbackrecords($uname,$udom,$course);
3045: my $totallikes=$record{'totallikes'};
3046: $totallikes+=$likes;
3047: my %newrecord=('likes_user' => $env{'user.name'},
3048: 'likes_domain' => $env{'user.domain'},
3049: 'likes' => $likes,
3050: 'totallikes' => $totallikes);
3051: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3052: }
3053:
3054: sub adddiscuss {
3055: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3056: my $status='';
3057: my $realsymb = &get_realsymb($symb);
3058: my ($cnum,$cdom);
3059: if ($env{'request.course.id'}) {
3060: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3061: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3062: }
3063: my $realsymb;
3064: if (&discussion_open(undef,$realsymb) &&
3065: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3066: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3067: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3068: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3069:
3070: my %contrib=('message' => $email,
3071: 'sendername' => $env{'user.name'},
3072: 'senderdomain' => $env{'user.domain'},
3073: 'screenname' => $env{'environment.screenname'},
3074: 'plainname' => $env{'environment.firstname'}.' '.
3075: $env{'environment.middlename'}.' '.
3076: $env{'environment.lastname'}.' '.
3077: $env{'enrironment.generation'},
3078: 'attachmenturl'=> $attachmenturl,
3079: 'subject' => $subject);
3080: if ($env{'form.replydisc'}) {
3081: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3082: }
3083: if ($anon) {
3084: $contrib{'anonymous'}='true';
3085: }
3086: if (($symb) && ($email)) {
3087: my $now = time;
3088: if ($env{'form.editdisc'}) {
3089: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3090: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3091: $contrib{'timestamp'} = $now;
3092: $contrib{'history'} = '';
3093: my $numoldver = 0;
3094: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3095: &Apache::lonenc::check_decrypt(\$oldsymb);
3096: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3097: # get timestamp for last post and history
3098: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3099: $env{'course.'.$env{'request.course.id'}.'.domain'},
3100: $env{'course.'.$env{'request.course.id'}.'.num'});
3101: if (defined($oldcontrib{$oldidx.':replyto'})) {
3102: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3103: }
3104: if (defined($oldcontrib{$oldidx.':history'})) {
3105: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3106: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3107: $numoldver = @oldversions;
3108: } else {
3109: $numoldver = 1;
3110: }
3111: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3112: }
3113: my $numnewver = $numoldver + 1;
3114: if (defined($oldcontrib{$oldidx.':subject'})) {
3115: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3116: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3117: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3118: } else {
3119: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3120: }
3121: }
3122: if (defined($oldcontrib{$oldidx.':message'})) {
3123: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3124: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3125: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3126: } else {
3127: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3128: }
3129: }
3130: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3131: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3132: $oldsymb,$oldidx,\%contrib,
3133: $env{'course.'.$env{'request.course.id'}.'.domain'},
3134: $env{'course.'.$env{'request.course.id'}.'.num'});
3135: $status='Editing class discussion'.($anon?' (anonymous)':'');
3136: } else {
3137: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3138: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3139: $env{'course.'.$env{'request.course.id'}.'.domain'},
3140: $env{'course.'.$env{'request.course.id'}.'.num'});
3141: }
3142: my %storenewentry=($symb => $now);
3143: $status.='<br />'.&mt('Updating discussion time').': '.
3144: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3145: $env{'course.'.$env{'request.course.id'}.'.domain'},
3146: $env{'course.'.$env{'request.course.id'}.'.num'});
3147: }
3148: my %record=&getdiscussionrecords();
3149: my ($temp)=keys(%record);
3150: unless ($temp=~/^error\:/) {
3151: my %newrecord=();
3152: $newrecord{'resource'}=$symb;
3153: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3154: $status.='<br />'.&mt('Registering').': '.
3155: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3156: &updatekarma();
3157: }
3158: } else {
3159: $status.='Failed.';
3160: }
3161: return $status.'<br />';
3162: }
3163:
3164: # Routine to get the complete discussion records
3165:
3166: sub getdiscussionrecords {
3167: my ($uname,$udom,$course)=@_;
3168: unless ($uname) { $uname=$env{'user.name'}; }
3169: unless ($udom) { $udom=$env{'user.domain'}; }
3170: unless ($course) { $course=$env{'request.course.id'}; }
3171: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3172: return %record;
3173: }
3174:
3175: # Routine to get discussion statistics
3176:
3177: sub getdiscussionstats {
3178: my %record=&getdiscussionrecords(@_);
3179: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3180: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3181: }
3182:
3183: # Calculate discussion karma
3184:
3185: sub calcdiscussionkarma {
3186: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3187: my $karma=0;
3188: if ($votes>0) {
3189: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3190: if ($karma<0) { $karma=0; }
3191: if ($karma>5) { $karma=5; }
3192: }
3193: return $karma;
3194: }
3195:
3196: # Update karma
3197:
3198: sub updatekarma {
3199: my ($uname,$udom,$course)=@_;
3200: unless ($uname) { $uname=$env{'user.name'}; }
3201: unless ($udom) { $udom=$env{'user.domain'}; }
3202: unless ($course) { $course=$env{'request.course.id'}; }
3203: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3204: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3205: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3206: return $karma;
3207: }
3208:
3209: # Retrieve karma
3210:
3211: sub userkarma {
3212: my ($uname,$udom,$course)=@_;
3213: unless ($uname) { $uname=$env{'user.name'}; }
3214: unless ($udom) { $udom=$env{'user.domain'}; }
3215: unless ($course) { $course=$env{'request.course.id'}; }
3216: my $hashkey=$uname.':'.$udom.':'.$course;
3217: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3218: if ($cached) {
3219: return $karma;
3220: }
3221: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3222: $karma=$userdisc{'karma'};
3223: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3224: return $karma;
3225: }
3226:
3227: # Store discussion credit
3228:
3229: sub storediscussionpoints {
3230: my ($points,$uname,$udom,$course)=@_;
3231: unless ($points) { $points=0; }
3232: unless ($uname) { $uname=$env{'user.name'}; }
3233: unless ($udom) { $udom=$env{'user.domain'}; }
3234: unless ($course) { $course=$env{'request.course.id'}; }
3235: my %record=('grader_user' => $env{'user.name'},
3236: 'grader_domain' => $env{'user.domain'},
3237: 'points' => $points);
3238: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3239: }
3240:
3241: # Store discussion "likes"
3242:
3243: sub storediscussionlikes {
3244: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3245: unless ($uname) { $uname=$env{'user.name'}; }
3246: unless ($udom) { $udom=$env{'user.domain'}; }
3247: unless ($course) { $course=$env{'request.course.id'}; }
3248: my %record=&getdiscussionrecords($uname,$udom,$course);
3249: my $totallikes=$record{'totallikes'};
3250: my $totalunlikes=$record{'totalunlikes'};
3251: $totallikes += $chglikes;
3252: $totalunlikes += $chgunlikes;
3253: my %newrecord=('likes_user' => $env{'user.name'},
3254: 'likes_domain' => $env{'user.domain'},
3255: 'totallikes' => $totallikes,
3256: 'totalunlikes' => $totalunlikes,
3257: 'context' => $context);
3258: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3259: if ($status eq 'ok') {
3260: &updatekarma($uname,$udom,$course);
3261: }
3262: return $status;
3263: }
3264:
3265: sub get_discussion_info {
3266: my ($idx,%contrib) = @_;
3267: my $changelast = 0;
3268: my $count = 0;
3269: my $hiddenflag = 0;
3270: my $deletedflag = 0;
3271: my ($hidden,$deleted,%info,$newlastdisc);
3272: my $version = $contrib{'version'};
3273: if ($version) {
3274: for (my $id=$version; $id>0; $id--) {
3275: my $vkeys=$contrib{$id.':keys'};
3276: my @keys=split(/:/,$vkeys);
3277: if (grep(/^hidden$/,@keys)) {
3278: if (!$hiddenflag) {
3279: $hidden = $contrib{$id.':hidden'};
3280: $hiddenflag = 1;
3281: }
3282: } elsif (grep(/^deleted$/,@keys)) {
3283: if (!$deletedflag) {
3284: $deleted = $contrib{$id.':deleted'};
3285: $deletedflag = 1;
3286: }
3287: } else {
3288: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3289: $count++;
3290: $info{$count}{'id'} = $id;
3291: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3292: }
3293: }
3294: }
3295: if ($info{'1'}{'id'} == $idx) {
3296: $changelast = 1;
3297: if ($count > 1) {
3298: $newlastdisc = $info{'2'}{'timestamp'};
3299: } else {
3300: $newlastdisc = 0;
3301: }
3302: }
3303: }
3304: return ($changelast,$newlastdisc);
3305: }
3306:
3307: # ----------------------------------------------------------- Preview function
3308:
3309: sub show_preview {
3310: my ($r) = @_;
3311: &Apache::loncommon::content_type($r,'text/html');
3312: $r->send_http_header;
3313: my $start_page=
3314: &Apache::loncommon::start_page('Preview',undef,
3315: {'only_body' => 1,});
3316:
3317: my $message=&clear_out_html($env{'form.comment'});
3318: &newline_to_br(\$message);
3319: $message=&Apache::lonspeller::markeduptext($message);
3320: $message=&Apache::lontexconvert::msgtexconverted($message);
3321: my $subject=&clear_out_html($env{'form.subject'});
3322: $subject=~s/\n/\<br \/\>/g;
3323: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3324:
3325: my $end_page = &Apache::loncommon::end_page();
3326:
3327: $r->print($start_page
3328: .'<h1>'.&mt('Preview').'</h1>'
3329: .&Apache::lonhtmlcommon::start_pick_box()
3330: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3331: .$subject
3332: .&Apache::lonhtmlcommon::row_closure()
3333: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3334: .$message
3335: .&Apache::lonhtmlcommon::row_closure(1)
3336: .&Apache::lonhtmlcommon::end_pick_box()
3337: .$end_page
3338: );
3339: }
3340:
3341: sub contains_block_html {
3342: my ($message)=@_;
3343: return ($message =~ m{
3344: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3345: \s*
3346: (\w+\=['"]\w+['"])*
3347: \s*
3348: (
3349: \s*/>|
3350: >.*</\1\s*>
3351: )}xs
3352: );
3353: }
3354:
3355: sub tidy_html {
3356: my ($message)=@_;
3357: # my $tidy = HTML::Tidy::libXML->new();
3358: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3359: # $xhtml =~ m/<body>(.*)<\/body>/is;
3360: # my $clean = $1;
3361: # # remove any empty block-level tags
3362: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3363: # $message=$clean;
3364: return $message;
3365: }
3366:
3367: sub newline_to_br {
3368: my ($message)=@_;
3369: my $newmessage;
3370: my $parser=HTML::LCParser->new($message);
3371: while (my $token=$parser->get_token()) {
3372: if ($token->[0] eq 'T') {
3373: my $text=$token->[1];
3374: $text=~s/\n/\<br \/\>/g;
3375: $newmessage.=$text;
3376: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3377: $newmessage.=$token->[1];
3378: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3379: $newmessage.=$token->[2];
3380: } elsif ($token->[0] eq 'S') {
3381: $newmessage.=$token->[4];
3382: }
3383:
3384: }
3385: $$message=$newmessage;
3386: }
3387:
3388: sub generate_preview_button {
3389: my ($formname,$fieldname)=@_;
3390: unless ($formname) { $formname='mailform'; }
3391: unless ($fieldname) { $fieldname='comment'; }
3392: my $pre=&mt("Show Preview and Check Spelling");
3393: return(<<ENDPREVIEW);
3394: <br />
3395: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3396: <input type="hidden" name="subject" />
3397: <input type="hidden" name="comment" />
3398: <input type="button" value="$pre"
3399: onclick="if (typeof(document.$formname.onsubmit)=='function') {document.$formname.onsubmit();};this.form.comment.value=document.$formname.$fieldname.value;this.form.subject.value=document.$formname.subject.value;this.form.submit();" />
3400: </form>
3401: ENDPREVIEW
3402: }
3403:
3404: sub modify_attachments {
3405: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3406: $attachmaxtext,$toolarge)=@_;
3407:
3408: my %lt = &Apache::lonlocal::texthash(
3409: 'subj' => 'Subject',
3410: 'thfo' => 'The following attachments were part of the most recent saved version of this posting.',
3411: 'chth' => 'Check the checkboxes for any you wish to remove.',
3412: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3413: 'adda' => 'Add a new attachment to this post.',
3414: 'stch' => 'Save Changes',
3415: );
3416: my $js = <<END;
3417: <script type="text/javascript">
3418: function setAction () {
3419: document.modattachments.action = document.modattachments.origpage.value;
3420: document.modattachments.submit();
3421: }
3422: </script>
3423: END
3424:
3425: # Breadcrumbs
3426: my $brcrum = [{'href' => '',
3427: 'text' => 'Discussion Post Attachments'}];
3428: my $start_page =
3429: &Apache::loncommon::start_page('Discussion Post Attachments',$js,
3430: {'bread_crumbs' => $brcrum,});
3431:
3432: my $orig_subject = &unescape($env{'form.subject'});
3433: my $subject=&clear_out_html($orig_subject);
3434: $subject=~s/\n/\<br \/\>/g;
3435: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3436: my $timestamp=$env{'form.timestamp'};
3437: my $numoldver=$env{'form.numoldver'};
3438:
3439: my $msg = '';
3440: my %attachments = ();
3441: my %currattach = ();
3442: if ($idx) {
3443: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3444: }
3445: &Apache::lonenc::check_encrypt(\$symb);
3446:
3447: my $end_page =
3448: &Apache::loncommon::end_page();
3449:
3450: $r->print(<<END);
3451: $start_page
3452: $toolarge
3453: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3454: <br />
3455: <table class="LC_data_table">
3456: <tr>
3457: <td colspan="2">
3458: <b>Subject:</b> <b>$subject</b><br /><br />
3459: END
3460: if ($idx) {
3461: if ($attachmenturls) {
3462: my @currold = keys(%currattach);
3463: if (@currold > 0) {
3464: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3465: foreach my $id (@currold) {
3466: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3467: $attachurl =~ m#/([^/]+)$#;
3468: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3469: }
3470: $r->print("<br />");
3471: }
3472: }
3473: }
3474: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3475: $r->print($lt{'thef'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3476: foreach my $attach (@{$currnewattach}) {
3477: $attach =~ m#/([^/]+)$#;
3478: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3479: }
3480: $r->print("<br />");
3481: }
3482: $r->print(<<END);
3483: </td></tr>
3484: <tr>
3485: <td>
3486: $lt{'adda'}</td><td><input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" />
3487: </td>
3488: </tr>
3489: <tr>
3490: <td colspan="2">$attachmaxtext</td>
3491: </tr>
3492: </table>
3493: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3494: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3495: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3496: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3497: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3498: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3499: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3500: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3501: END
3502: foreach my $item (@{$currnewattach}) {
3503: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3504: }
3505: foreach my $item (@{$currdelold}) {
3506: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3507: }
3508: $r->print(<<END);
3509: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3510: </form>
3511: $end_page
3512: END
3513: return;
3514: }
3515:
3516: sub process_attachments {
3517: my ($currnewattach,$currdelold,$keepold) = @_;
3518:
3519: @{$currnewattach}=
3520: &Apache::loncommon::get_env_multiple('form.currnewattach');
3521: @{$currdelold}=
3522: &Apache::loncommon::get_env_multiple('form.deloldattach');
3523: if (exists($env{'form.delnewattach'})) {
3524: my @currdelnew =
3525: &Apache::loncommon::get_env_multiple('form.delnewattach');
3526: my @currnew = ();
3527: foreach my $newone (@{$currnewattach}) {
3528: my $delflag = 0;
3529: foreach my $item (@currdelnew) {
3530: if ($newone eq $item) {
3531: $delflag = 1;
3532: last;
3533: }
3534: }
3535: unless ($delflag) {
3536: push(@currnew, $newone);
3537: }
3538: }
3539: @{$currnewattach} = @currnew;
3540: }
3541: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3542: }
3543:
3544: sub generate_attachments_button {
3545: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3546: $numoldver,$mode,$blockblog) = @_;
3547: my $origpage = $ENV{'REQUEST_URI'};
3548: my $att=$attachnum.' '.&mt("attachments");
3549: my %lt = &Apache::lonlocal::texthash(
3550: 'clic' => 'Click to add/remove attachments',
3551: );
3552: my $response = (<<END);
3553: <br />
3554: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3555: $lt{'clic'}: <input type="button" value="$att"
3556: 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);
3557: END
3558: if (!$blockblog) {
3559: $response .= 'setblogvalue();';
3560: }
3561: unless ($mode eq 'board') {
3562: $response .= 'javascript:anonchk();';
3563: }
3564: $response .= (<<ENDATTACH);
3565: this.form.submit();" />
3566: <input type="hidden" name="origpage" value="$origpage" />
3567: <input type="hidden" name="idx" value="$idx" />
3568: <input type="hidden" name="timestamp" value="$now" />
3569: <input type="hidden" name="subject" />
3570: <input type="hidden" name="comment" />
3571: <input type="hidden" name="blog" value="0" />
3572: <input type="hidden" name="discuss" value="0" />
3573: <input type="hidden" name="numoldver" value="$numoldver" />
3574: ENDATTACH
3575: if (defined($deloldattach)) {
3576: if (@{$deloldattach} > 0) {
3577: foreach my $delatt (@{$deloldattach}) {
3578: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3579: }
3580: }
3581: }
3582: if (defined($currnewattach)) {
3583: if (@{$currnewattach} > 0) {
3584: foreach my $attach (@{$currnewattach}) {
3585: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3586: }
3587: }
3588: }
3589: $response .= '</form>';
3590: return $response;
3591: }
3592:
3593: sub extract_attachments {
3594: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3595: %{$attachments}=();
3596: &get_post_attachments($attachments,$attachmenturls);
3597: foreach my $id (sort(keys(%{$attachments}))) {
3598: if (exists($$attachments{$id}{$numoldver})) {
3599: if (defined($currdelold)) {
3600: if (@{$currdelold} > 0) {
3601: unless (grep/^$id$/,@{$currdelold}) {
3602: $$currattach{$id} = $$attachments{$id}{$numoldver};
3603: }
3604: } else {
3605: $$currattach{$id} = $$attachments{$id}{$numoldver};
3606: }
3607: } else {
3608: $$currattach{$id} = $$attachments{$id}{$numoldver};
3609: }
3610: }
3611: }
3612: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3613: if (@attached == 1) {
3614: my $id = $attached[0];
3615: my $attachurl;
3616: if ($attachmenturls =~ m/^<attachment id="0">/) {
3617: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3618: } else {
3619: $attachurl = $$attachments{$id}{'filename'};
3620: }
3621: $attachurl=~m|/([^/]+)$|;
3622: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3623: $1.'</tt></a><br />';
3624: &Apache::lonnet::allowuploaded('/adm/feedback',
3625: $attachurl);
3626: } elsif (@attached > 1) {
3627: $$message.='<ol>';
3628: foreach my $attach (@attached) {
3629: my $id = $attach;
3630: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3631: my ($fname)
3632: =($attachurl=~m|/([^/]+)$|);
3633: $$message .= '<li><a href="'.$attachurl.
3634: '"><tt>'.
3635: $fname.'</tt></a></li>';
3636: &Apache::lonnet::allowuploaded('/adm/feedback',
3637: $attachurl);
3638: }
3639: $$message .= '</ol>';
3640: }
3641: }
3642:
3643: sub construct_attachmenturl {
3644: my ($currnewattach,$keepold,$symb,$idx)=@_;
3645: my $oldattachmenturl;
3646: my $newattachmenturl;
3647: my $startnum = 0;
3648: my $currver = 0;
3649: if (($env{'form.editdisc'}) && ($idx)) {
3650: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3651: $env{'course.'.$env{'request.course.id'}.'.domain'},
3652: $env{'course.'.$env{'request.course.id'}.'.num'});
3653: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3654: if ($contrib{$idx.':history'}) {
3655: if ($contrib{$idx.':history'} =~ /:/) {
3656: my @oldversions = split(/:/,$contrib{$idx.':history'});
3657: $currver = 1 + scalar(@oldversions);
3658: } else {
3659: $currver = 2;
3660: }
3661: } else {
3662: $currver = 1;
3663: }
3664: if ($oldattachmenturl) {
3665: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3666: my %attachments = ();
3667: my $prevver = $currver-1;
3668: &get_post_attachments(\%attachments,$oldattachmenturl);
3669: my $numattach = scalar(keys(%attachments));
3670: $startnum += $numattach;
3671: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3672: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3673: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3674: unless ($item eq 'filename') {
3675: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3676: }
3677: }
3678: if (grep/^$num$/,@{$keepold}) {
3679: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3680: }
3681: $newattachmenturl .= '</attachment>';
3682: }
3683: } else {
3684: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3685: unless (grep/^0$/,@{$keepold}) {
3686: $newattachmenturl .= '<post id="1">n</post>';
3687: }
3688: $newattachmenturl .= '</attachment>';
3689: $startnum ++;
3690: }
3691: }
3692: }
3693: for (my $i=0; $i<@{$currnewattach}; $i++) {
3694: my $attachnum = $startnum + $i;
3695: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3696: }
3697: return $newattachmenturl;
3698: }
3699:
3700: sub add_blog_checkbox {
3701: my ($crstype) = @_;
3702: my $checkstatus;
3703: if ($env{'form.blog'}) {
3704: $checkstatus = 'checked="checked"';
3705: }
3706: my $output = '
3707: <script type="text/javascript">
3708: function setblogvalue() {
3709: if (document.mailform.blog.checked) {
3710: document.attachment.blog.value = 1;
3711: } else {
3712: document.attachment.blog.value = 0;
3713: }
3714: }
3715: </script><br />
3716: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3717: if ($crstype eq 'Community') {
3718: $output .= &mt('Add to my public community blog');
3719: } else {
3720: $output .= &mt('Add to my public course blog');
3721: }
3722: $output .= '</label><br />'."\n";
3723: return $output;
3724: }
3725:
3726: sub has_discussion {
3727: my $resourcesref = shift;
3728: my $navmap = Apache::lonnavmaps::navmap->new();
3729: if (defined($navmap)) {
3730: my @allres=$navmap->retrieveResources();
3731: foreach my $resource (@allres) {
3732: if ($resource->hasDiscussion()) {
3733: my $ressymb = $resource->wrap_symb();
3734: if (ref($resourcesref) eq 'ARRAY') {
3735: push(@{$resourcesref}, $ressymb);
3736: }
3737: }
3738: }
3739: } else {
3740: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3741: }
3742: return;
3743: }
3744:
3745: sub sort_filter_names {
3746: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3747: if (ref($sort_types) eq 'HASH') {
3748: %{$sort_types} = (
3749: ascdate => 'Date order - oldest first',
3750: descdate => 'Date order - newest first',
3751: thread => 'Threaded',
3752: subject => 'By subject',
3753: username => 'By domain and username',
3754: lastfirst => 'By last name, first name'
3755: );
3756: }
3757: my @courseroles = qw(st in ta ep ad);
3758: if ($crstype eq 'Community') {
3759: push(@courseroles,'co');
3760: } else {
3761: push(@courseroles,'cc');
3762: }
3763: if (ref($role_types) eq 'HASH') {
3764: foreach my $role (@courseroles) {
3765: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3766: }
3767: $role_types->{'all'} = 'All roles';
3768: $role_types->{'cr'} = 'Custom role';
3769: }
3770: if (ref($status_types) eq 'HASH') {
3771: %{$status_types} = (
3772: all => 'Roles of any status',
3773: Active => 'Only active roles',
3774: Expired => 'Only past roles',
3775: Future => 'Only future roles',
3776: );
3777: }
3778: }
3779:
3780: sub handler {
3781: my $r = shift;
3782: if ($r->header_only) {
3783: &Apache::loncommon::content_type($r,'text/html');
3784: $r->send_http_header;
3785: return OK;
3786: }
3787:
3788: # --------------------------- Get query string for limited number of parameters
3789:
3790: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3791: ['like','unlike','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']);
3792: my $group = $env{'form.group'};
3793: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3794: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3795: my %attachmax = (
3796: text => &mt('(128 KB max size)'),
3797: num => 131072,
3798: );
3799: if ($env{'form.editdisc'}) {
3800: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
3801: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3802: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3803: my $feedurl=&Apache::lonnet::clutter($url);
3804: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3805: undef,undef,undef,$group);
3806: return OK;
3807: }
3808: }
3809: if ($env{'form.discsymb'}) {
3810: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3811: my $readkey = $symb.'_read';
3812: my $chgcount = 0;
3813: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3814: foreach my $key (keys(%env)) {
3815: if ($key =~ m/^form\.postunread_(\d+)/) {
3816: if ($readinghash{$readkey} =~ /\.$1\./) {
3817: $readinghash{$readkey} =~ s/\.$1\.//;
3818: $chgcount ++;
3819: }
3820: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3821: unless ($readinghash{$readkey} =~ /\.$1\./) {
3822: $readinghash{$readkey} .= '.'.$1.'.';
3823: $chgcount ++;
3824: }
3825: }
3826: }
3827: if ($chgcount > 0) {
3828: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3829: \%readinghash,$env{'user.domain'},$env{'user.name'});
3830: }
3831: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3832: '0','0','','',$env{'form.previous'},'','','',
3833: undef,undef,undef,$group);
3834: return OK;
3835: }
3836: if ($env{'form.allversions'}) {
3837: &Apache::loncommon::content_type($r,'text/html');
3838: &Apache::loncommon::no_cache($r);
3839: $r->send_http_header;
3840:
3841: # Breadcrumbs
3842: my $brcrum = [{'href' => '',
3843: 'text' => 'Discussion Post Versions'}];
3844:
3845: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,
3846: {'bread_crumbs' => $brcrum,})
3847: );
3848:
3849: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3850: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
3851: my $ressymb = &wrap_symb($symb);
3852: my $seeid;
3853: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
3854: $seeid = 1;
3855: }
3856: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
3857: if ($idx > 0) {
3858: my %messages = ();
3859: my %subjects = ();
3860: my %attachmsgs = ();
3861: my %allattachments = ();
3862: my %imsfiles = ();
3863: my ($screenname,$plainname,$showaboutme);
3864: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3865: $cdom,$cnum);
3866: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3867: }
3868: $r->print(&Apache::loncommon::end_page());
3869: return OK;
3870: }
3871: if ($env{'form.posterlist'}) {
3872: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3873: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3874: $env{'form.sortposts'});
3875: return OK;
3876: }
3877: if ($env{'form.userpick'}) {
3878: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3879: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3880: my $numpicks = @posters;
3881: my %discinfo;
3882: $discinfo{$symb.'_userpick'} = join('&',@posters);
3883: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3884: \%discinfo,$env{'user.domain'},$env{'user.name'});
3885: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3886: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3887: '',$numpicks,$group);
3888: return OK;
3889: }
3890: if ($env{'form.applysort'}) {
3891: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3892: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3893: '',$env{'form.previous'},$env{'form.sortposts'},
3894: $env{'form.rolefilter'},$env{'form.statusfilter'},
3895: $env{'form.sectionpick'},$env{'form.grouppick'},
3896: undef,$group);
3897: return OK;
3898: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3899: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3900: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3901: return OK;
3902: } elsif ($env{'form.navtime'}) {
3903: my %discinfo = ();
3904: my @resources = ();
3905: if (defined($env{'form.navmaps'})) {
3906: if ($env{'form.navmaps'} =~ /:/) {
3907: @resources = split(/:/,$env{'form.navmaps'});
3908: } else {
3909: @resources = ("$env{'form.navmaps'}");
3910: }
3911: } else {
3912: &has_discussion(\@resources);
3913: }
3914: my $numitems = @resources;
3915: my $feedurl = '/adm/navmaps';
3916: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3917: my %lt = &Apache::lonlocal::texthash(
3918: 'mnpa' => 'Marked "New" posts as read in a total of',
3919: 'robb' => 'resources/bulletin boards.',
3920: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3921: );
3922: foreach my $res (@resources) {
3923: my $ressymb=$res;
3924: &Apache::lonenc::check_decrypt(\$ressymb);
3925: my $lastkey = $ressymb.'_lastread';
3926: $discinfo{$lastkey} = $env{'form.navtime'};
3927: }
3928: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3929: if ($numitems > 0) {
3930: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3931: \%discinfo,$env{'user.domain'},$env{'user.name'});
3932: } else {
3933: $textline = "<b>$lt{'twnp'}</b>";
3934: }
3935: &Apache::loncommon::content_type($r,'text/html');
3936: $r->send_http_header;
3937: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3938: my %onload;
3939: if ($env{'environment.remote'} ne 'off') {
3940: $onload{'onload'} =
3941: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
3942: }
3943:
3944: my $start_page=
3945: &Apache::loncommon::start_page('New posts marked as read',undef,
3946: {'redirect' => [2,$feedurl],
3947: 'only_body' => 1,
3948: 'add_entries' => \%onload});
3949: my $end_page = &Apache::loncommon::end_page();
3950: $r->print (<<ENDREDIR);
3951: $start_page
3952: <img align="right" src="$logo" />
3953: $textline
3954: <form name="reldt" action="$feedurl" target="loncapaclient">
3955: </form>
3956: <br />
3957: $end_page
3958: ENDREDIR
3959: return OK;
3960: } elsif ($env{'form.modifydisp'}) {
3961: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3962: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3963: split(/_/,$env{'form.changes'});
3964: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3965: $dispchgB,$markchg,$toggchg,$feedurl);
3966: return OK;
3967: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3968: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3969: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3970: $env{'form.toggon'} || $env{'form.markread'}) {
3971: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3972: my %discinfo;
3973: # ------------------------ Modify setting for read/unread toggle for each post
3974: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3975: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3976: # --------- Modify setting for identification of 'NEW' posts in this discussion
3977: if ($env{'form.markondisp'}) {
3978: $discinfo{$symb.'_lastread'} = time;
3979: $discinfo{$symb.'_markondisp'} = 1;
3980: }
3981: if ($env{'form.markonread'}) {
3982: if ( $env{'form.previous'} > 0 ) {
3983: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
3984: }
3985: $discinfo{$symb.'_markondisp'} = 0;
3986: }
3987: # --------------------------------- Modify display setting for this discussion
3988: if ($env{'form.allposts'}) {
3989: $discinfo{$symb.'_showonlyunread'} = 0;
3990: $discinfo{$symb.'_showonlyunmark'} = 0;
3991: }
3992: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
3993: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
3994: # ----------------------------------------------------- Mark new posts not NEW
3995: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
3996: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3997: \%discinfo,$env{'user.domain'},$env{'user.name'});
3998: my $previous=$env{'form.previous'};
3999: if ($env{'form.markondisp'}) { $previous=undef; }
4000: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4001: '0','0','','',$previous,'','','','','','',$group);
4002: return OK;
4003: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4004: # ----------------------------------------------------------------- Hide/unhide
4005: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4006: my ($symb,$idx)=split(/\:\:\:/,$entry);
4007: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4008: my $ressymb = &wrap_symb($symb);
4009:
4010: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4011: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4012: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4013: '0','0','','',$env{'form.previous'},'','','','',
4014: undef,undef,$group,);
4015: return OK;
4016: }
4017:
4018: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4019: $cdom,$cnum);
4020:
4021: my $currenthidden=$contrib{'hidden'};
4022: my $currentstudenthidden=$contrib{'studenthidden'};
4023:
4024: if ($env{'form.hide'}) {
4025: $currenthidden.='.'.$idx.'.';
4026: unless ($seehidden) {
4027: $currentstudenthidden.='.'.$idx.'.';
4028: }
4029: } else {
4030: $currenthidden=~s/\.$idx\.//g;
4031: }
4032: my %newhash=('hidden' => $currenthidden);
4033: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4034: $newhash{'studenthidden'} = $currentstudenthidden;
4035: }
4036: if ($env{'form.hide'}) {
4037: my $changelast = 0;
4038: my $newlast;
4039: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4040: if ($changelast) {
4041: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4042: $cdom,$cnum);
4043: }
4044: }
4045: my $result;
4046: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4047: $cdom,$cnum) eq 'ok') {
4048: my $prefix=$symb.':'.$idx.':';
4049: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4050: '^'.$prefix);
4051: my ($totallikes,$totalunlikes);
4052: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4053: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4054: }
4055: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4056: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4057: }
4058: if ($totallikes || $totalunlikes) {
4059: my ($chglikes,$chgunlikes,$context);
4060: if ($env{'form.hide'}) {
4061: $chglikes = -1 * $totallikes;
4062: $chgunlikes = -1 * $totalunlikes;
4063: $context = 'hide';
4064: } else {
4065: $chglikes = $totallikes;
4066: $chgunlikes = $totalunlikes;
4067: $context = 'unhide';
4068: }
4069: &storediscussionlikes($chglikes,$chgunlikes,
4070: $contrib{$idx.':sendername'},
4071: $contrib{$idx.':senderdomain'},
4072: $env{'request.course.id'},
4073: $context);
4074:
4075: }
4076: $result = &mt('Changed discussion status');
4077: } else {
4078: $result = &mt('Discussion status unchanged');
4079: }
4080: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4081: $env{'form.previous'},undef,undef,undef,
4082: undef,undef,undef,$group);
4083: return OK;
4084: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4085: # ----------------------------------------------------------------- Like/unlike
4086: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4087: my ($symb,$idx)=split(/\:\:\:/,$entry);
4088: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4089: my $result;
4090: if ($idx > 0) {
4091: my $realsymb = &get_realsymb($symb);
4092: my $status='OPEN';
4093: if ($Apache::lonhomework::parsing_a_problem ||
4094: $Apache::lonhomework::parsing_a_task) {
4095: $status=$Apache::inputtags::status[-1];
4096: }
4097: if (&discussion_vote_available($status,$realsymb)) {
4098: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4099: $cdom,$cnum);
4100: my $ownpost;
4101: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4102: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4103: $ownpost = 1;
4104: }
4105: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4106: $result = &mt('Vote not registered.').' ';
4107: }
4108: if ($ownpost) {
4109: $result .= &mt('No voting for your own posts.');
4110: } elsif ($contrib{$idx.':hidden'}) {
4111: $result .= &mt('No voting for hidden posts.');
4112: } elsif ($contrib{$idx.':deleted'}) {
4113: $result .= &mt('No voting for deleted posts.');
4114: } else {
4115: #
4116: # Likes and unlikes are in db-file "disclikes" of the course
4117: # The prefix is the $symb to identify the resource discussion,
4118: # and the $idx to identify the entry
4119: #
4120: my $prefix=$symb.':'.$idx.':';
4121: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4122: '^'.$prefix);
4123:
4124: # Get current like or unlike status for the $idx for this user.
4125: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4126: my ($userlikes,$userunlikes);
4127: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4128: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4129: $userlikes = 1;
4130: }
4131: }
4132: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4133: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4134: $userunlikes = 1;
4135: }
4136: }
4137: # Get the current "likes" count
4138: my $likescount=$likes{$prefix.'likes'};
4139: # Find out if they already voted
4140: # Users cannot like a post twice, or unlike it twice.
4141: # They can change their mind, though.
4142: my $alreadyflag=0;
4143: my $votetype;
4144: if ($env{'form.like'}) {
4145: if ($userlikes) {
4146: $alreadyflag=1;
4147: } elsif ($userunlikes) {
4148: delete($likes{$prefix.'unlikers'}{$thisuser});
4149: $votetype = 'switch';
4150: $likescount++;
4151: } else {
4152: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4153: $likes{$prefix.'likers'}{$thisuser} = 1;
4154: } else {
4155: $likes{$prefix.'likers'} = {$thisuser => 1};
4156: }
4157: $likescount++;
4158: }
4159: } else {
4160: if ($userunlikes) {
4161: $alreadyflag=1;
4162: } elsif ($userlikes) {
4163: delete($likes{$prefix.'likers'}{$thisuser});
4164: $votetype = 'switch';
4165: $likescount--;
4166: } else {
4167: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4168: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4169: } else {
4170: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4171: }
4172: $likescount--;
4173: }
4174: }
4175: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4176: if ($alreadyflag) {
4177: if ($env{'form.like'}) {
4178: $result= &mt("'Like' already registered");
4179: } else {
4180: $result= &mt("'Unlike' already registered");
4181: }
4182: } else {
4183: my %newhash=($prefix.'likes' => $likescount,
4184: $prefix.'likers' => $likes{$prefix.'likers'},
4185: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4186: # Store data in db-file "disclikes"
4187: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4188: # Also store with the person who posted the liked/unliked entry
4189: my ($chglike,$chgunlike);
4190: if ($env{'form.like'}) {
4191: if ($votetype eq 'switch') {
4192: $chglike = 0;
4193: $chgunlike = -1;
4194: } else {
4195: $chglike = 1;
4196: $chgunlike = 0;
4197: }
4198: &storediscussionlikes($chglike,$chgunlike,
4199: $contrib{$idx.':sendername'},
4200: $contrib{$idx.':senderdomain'},
4201: $env{'request.course.id'},'like');
4202: $result=&mt("Registered 'Like'");
4203: } else {
4204: if ($votetype eq 'switch') {
4205: $chglike = -1;
4206: $chgunlike = 0;
4207: } else {
4208: $chglike = 0;
4209: $chgunlike = 1;
4210: }
4211: &storediscussionlikes($chglike,$chgunlike,
4212: $contrib{$idx.':sendername'},
4213: $contrib{$idx.':senderdomain'},
4214: $env{'request.course.id'},'unlike');
4215: $result=&mt("Registered 'Unlike'");
4216: }
4217: } else {
4218: # Oops, something went wrong
4219: $result=&mt("Failed to register vote");
4220: }
4221: }
4222: }
4223: } else {
4224: $result=&mt('Voting unavailable for this discussion');
4225: }
4226: } else {
4227: $result=&mt('Invalid post number');
4228: }
4229: &redirect_back($r,$feedurl,$result.'<br />',
4230: '0','0','','',$env{'form.previous'},undef,undef,undef,
4231: undef,undef,undef,$group);
4232: return OK;
4233: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4234: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4235: if ($env{'form.cmd'} eq 'threadedon') {
4236: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4237: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4238: } else {
4239: &Apache::lonnet::del('environment',['threadeddiscussion']);
4240: &Apache::lonnet::delenv('environment.threadeddiscussion');
4241: }
4242: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4243: '0','0','','',$env{'form.previous'},undef,undef,undef,
4244: undef,undef,undef,$group);
4245: return OK;
4246: } elsif ($env{'form.deldisc'}) {
4247: # --------------------------------------------------------------- Hide for good
4248: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4249: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4250: my $ressymb=&wrap_symb($symb);
4251: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4252: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4253: '0','0','','',$env{'form.previous'},'','','','',
4254: undef,undef,$group);
4255: return OK;
4256: }
4257: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4258: $cdom,$cnum);
4259: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4260: if ($changelast) {
4261: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4262: $cdom,$cnum);
4263: }
4264: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4265:
4266: my $result;
4267: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4268: $cdom,$cnum) eq 'ok') {
4269: $result = &mt('Changed discussion status');
4270: my $prefix=$symb.':'.$idx.':';
4271: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4272: '^'.$prefix);
4273: my ($totallikes,$totalunlikes);
4274: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4275: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4276: }
4277: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4278: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4279: }
4280: if ($totallikes || $totalunlikes) {
4281: my $chglikes = -1 * $totallikes;
4282: my $chgunlikes = -1 * $totalunlikes;
4283: &storediscussionlikes($chglikes,$chgunlikes,
4284: $contrib{$idx.':sendername'},
4285: $contrib{$idx.':senderdomain'},
4286: $env{'request.course.id'},
4287: 'delete');
4288: }
4289: } else {
4290: $result = &mt('Discussion status unchanged');
4291: }
4292: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4293: $env{'form.previous'},undef,undef,undef,
4294: undef,undef,undef,$group);
4295: return OK;
4296: } elsif ($env{'form.preview'}) {
4297: # -------------------------------------------------------- User wants a preview
4298: &show_preview($r);
4299: return OK;
4300: } elsif ($env{'form.attach'}) {
4301: # -------------------------------------------------------- Work on attachments
4302: &Apache::loncommon::content_type($r,'text/html');
4303: $r->send_http_header;
4304: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4305: my (@currnewattach,@currdelold,@keepold,$toolarge);
4306: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4307: if (exists($env{'form.addnewattach.filename'})) {
4308: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4309: my $subdir = 'feedback/'.$env{'form.timestamp'};
4310: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4311: push(@currnewattach, $newattachment);
4312: } else {
4313: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4314: }
4315: }
4316: my $attachmenturls;
4317: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4318: my $idx = $env{'form.idx'};
4319: if ($idx) {
4320: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4321: $cdom,$cnum);
4322: $attachmenturls = $contrib{$idx.':attachmenturl'};
4323: }
4324: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4325: $attachmenturls,$attachmax{'text'},$toolarge);
4326: return OK;
4327: } elsif ($env{'form.export'}) {
4328: &Apache::loncommon::content_type($r,'text/html');
4329: $r->send_http_header;
4330: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4331: my $mode='board';
4332: my $status='OPEN';
4333: my $previous=$env{'form.previous'};
4334: if ($feedurl =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {
4335: $mode='problem';
4336: $status=$Apache::inputtags::status[-1];
4337: }
4338: my $discussion = &list_discussion($mode,$status,$symb);
4339: my $start_page =
4340: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4341: my $end_page =
4342: &Apache::loncommon::end_page();
4343: $r->print($start_page.$discussion.$end_page);
4344: return OK;
4345: } elsif ($env{'form.undeleteall'}) {
4346: &Apache::loncommon::content_type($r,'text/html');
4347: $r->send_http_header;
4348: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4349: my $ressymb=&wrap_symb($symb);
4350: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4351: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4352: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4353: $cdom,$cnum);
4354: $contrib{'deleted'} =~ s/^\.//;
4355: $contrib{'deleted'} =~ s/\.$//;
4356: if ($contrib{'deleted'} ne '') {
4357: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4358: $cdom,$cnum) eq 'ok') {
4359: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4360: my @ids = split(/\.\./,$contrib{'deleted'});
4361: my (%chglikes,%chgunlikes);
4362: foreach my $idx (@ids) {
4363: my $uname = $contrib{$idx.':sendername'};
4364: my $udom = $contrib{$idx.':senderdomain'};
4365: my ($totallikes,$totalunlikes);
4366: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4367: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4368: }
4369: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4370: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4371: }
4372: if ($totallikes || $totalunlikes) {
4373: $chglikes{$uname.':'.$udom} += $totallikes;
4374: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4375: }
4376: }
4377: foreach my $user (keys(%chglikes)) {
4378: my ($uname,$udom) = split(/:/,$user);
4379: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4380: $uname,$udom,$env{'request.course.id'},
4381: 'undelete');
4382: }
4383: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")));
4384: } else {
4385: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1));
4386: }
4387: } else {
4388: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1));
4389: }
4390: $r->print("<br /><a href='$feedurl'>".&mt("Return and reload")."</a>");
4391: }
4392: $r->print(&Apache::loncommon::end_page());
4393: return OK;
4394: } else {
4395: # ------------------------------------------------------------- Normal feedback
4396: my $feedurl=$env{'form.postdata'};
4397: $feedurl=~s/^https?\:\/\///;
4398: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4399: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4400: $feedurl=~s/\?.+$//;
4401:
4402: my $symb;
4403: if ($env{'form.replydisc'}) {
4404: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4405: } elsif ($env{'form.editdisc'}) {
4406: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4407: } elsif ($env{'form.origpage'}) {
4408: $symb="";
4409: } else {
4410: $symb=&Apache::lonnet::symbread($feedurl);
4411: }
4412: unless ($symb) {
4413: $symb=$env{'form.symb'};
4414: }
4415: if (defined($symb)) {
4416: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4417: } else {
4418: # backward compatibility (bulletin boards used to be 'wrapped')
4419: &Apache::lonenc::check_decrypt(\$feedurl);
4420: &dewrapper(\$feedurl);
4421: }
4422: my $goahead=1;
4423: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form|task)$/) {
4424: unless ($symb) { $goahead=0; }
4425: }
4426: if (!$goahead) {
4427: # Ambiguous Problem Resource
4428: $r->internal_redirect('/adm/ambiguous');
4429: return OK;
4430: }
4431: # Go ahead with feedback, no ambiguous reference
4432: unless (
4433: (
4434: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4435: )
4436: ||
4437: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4438: ||
4439: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4440: ) {
4441: &Apache::loncommon::content_type($r,'text/html');
4442: $r->send_http_header;
4443: # Unable to give feedback
4444: &Apache::lonenc::check_encrypt(\$feedurl);
4445: &no_redirect_back($r,$feedurl);
4446: return OK;
4447: }
4448: # --------------------------------------------------- Print login screen header
4449: unless ($env{'form.sendit'}) {
4450: &Apache::lonenc::check_encrypt(\$feedurl);
4451: &Apache::loncommon::content_type($r,'text/html');
4452: $r->send_http_header;
4453: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4454: my ($blocked,$blocktext) =
4455: &Apache::loncommon::blocking_status('boards');
4456: if ($blocked) {
4457: $r->print(&blocked_reply_or_edit($blocktext));
4458: return OK;
4459: }
4460: }
4461: my $options=&screen_header($feedurl,$symb,$group);
4462: if ($options) {
4463: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4464: } else {
4465: &fail_redirect($r,$feedurl);
4466: }
4467: return OK;
4468: }
4469:
4470: # Get previous user input
4471: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4472: $symb,$env{'user.name'},$env{'user.domain'},
4473: $env{'request.course.id'});
4474:
4475: # Get output from resource
4476: &Apache::lonenc::check_encrypt(\$feedurl);
4477: my $usersaw=&resource_output($feedurl);
4478:
4479: # Get resource answer (need to allow student to view grades for this to work)
4480: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4481: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4482: my $useranswer=
4483: &Apache::loncommon::get_student_answers(
4484: $usersymb,$env{'user.name'},$env{'user.domain'},
4485: $env{'request.course.id'});
4486: &Apache::lonnet::delenv('allowed.vgr');
4487: # Get attachments, if any, and not too large
4488: my $attachmenturl='';
4489: my $toolarge='';
4490: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4491: ($env{'form.replydisc'})) {
4492: my ($symb,$idx);
4493: if ($env{'form.replydisc'}) {
4494: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4495: } elsif ($env{'form.editdisc'}) {
4496: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4497: } elsif ($env{'form.origpage'}) {
4498: $symb = $env{'form.symb'};
4499: }
4500: &Apache::lonenc::check_decrypt(\$symb);
4501: my @currnewattach = ();
4502: my @deloldattach = ();
4503: my @keepold = ();
4504: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4505: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4506: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4507: } elsif ($env{'form.attachment.filename'}) {
4508: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4509: my $now = time;
4510: my $subdir = 'feedback/'.$now;
4511: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4512: } else {
4513: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4514: }
4515: }
4516: # Filter HTML out of message (could be nasty)
4517: my $override;
4518: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4519: $override = 1;
4520: }
4521: my $message=&clear_out_html($env{'form.comment'},$override);
4522:
4523:
4524: # Assemble email
4525: my ($email,$citations)=&assemble_email($message,$prevattempts,
4526: $usersaw,$useranswer);
4527:
4528: # Who gets this?
4529: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4530:
4531: # Actually send mail
4532: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4533: $feedurl,$email,$citations,
4534: $attachmenturl,$usersymb,%to);
4535:
4536: # Discussion? Store that.
4537: my $numpost=0;
4538: if ( ($env{'form.discuss'} ne ''
4539: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4540: || $env{'form.anondiscuss'} ne '') {
4541: my $subject = &clear_out_html($env{'form.subject'});
4542: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4543: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4544: $subject,$group);
4545: $numpost++;
4546: }
4547:
4548: # Add to blog?
4549:
4550: my $blog='';
4551: if ($env{'form.blog'}) {
4552: my $subject = &clear_out_html($env{'form.subject'});
4553: $status.=&Apache::lonrss::addentry($env{'user.name'},
4554: $env{'user.domain'},
4555: 'CourseBlog_'.$env{'request.course.id'},
4556: $subject,$message,$feedurl,'public');
4557: if (&Apache::loncommon::course_type() eq 'Community') {
4558: $blog='<br />'.&mt('Added to my community blog').'<br />';
4559: } else {
4560: $blog='<br />'.&mt('Added to my course blog').'<br />';
4561: }
4562: }
4563:
4564: # Receipt screen and redirect back to where came from
4565: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4566: }
4567: return OK;
4568: }
4569:
4570: sub blocked_reply_or_edit {
4571: my ($blocktext) = @_;
4572: return
4573: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4574: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4575: &mt('Back to previous page').
4576: &Apache::loncommon::end_page();
4577: }
4578:
4579: sub wrap_symb {
4580: my ($ressymb)=@_;
4581: if ($ressymb =~ /bulletin___\d+___/) {
4582: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4583: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4584: }
4585: }
4586: return $ressymb;
4587: }
4588:
4589: sub dewrapper {
4590: my ($feedurl)=@_;
4591: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4592: $$feedurl=~s|^/adm/wrapper||;
4593: }
4594: }
4595:
4596: sub get_feedurl {
4597: my ($symb)=@_;
4598: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4599: my $feedurl = &Apache::lonnet::clutter($url);
4600: &dewrapper(\$feedurl);
4601: return $feedurl;
4602: }
4603:
4604: sub get_feedurl_and_clean_symb {
4605: my ($symb)=@_;
4606: &Apache::lonenc::check_decrypt(\$symb);
4607: # backward compatibility (bulletin boards used to be 'wrapped')
4608: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4609: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4610: }
4611: my $feedurl = &get_feedurl($symb);
4612: return ($symb,$feedurl);
4613: }
4614:
4615: sub editing_allowed {
4616: my ($postid,$group) = @_;
4617: $postid = &unescape($postid);
4618: my $can_edit = 0;
4619: if ($group ne '') {
4620: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4621: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4622: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4623: if (&check_group_priv($group,'egp') eq 'ok') {
4624: $can_edit = 1;
4625: }
4626: return $can_edit;
4627: }
4628: }
4629: my $cid = $env{'request.course.id'};
4630: my $role = (split(/\./,$env{'request.role'}))[0];
4631: my $section = $env{'request.course.sec'};
4632: my $allow_editing_config =
4633: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4634: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4635: $can_edit = 1;
4636: } else {
4637: foreach my $editor (split(/,/,$allow_editing_config)) {
4638: my ($editor_role,$editor_sec) = split(/:/,$editor);
4639: if ($editor_role eq $role
4640: && defined($editor_sec)
4641: && defined($section)
4642: && $editor_sec eq $section) {
4643: $can_edit = 1;
4644: last;
4645: }
4646: if ($editor_role eq $role
4647: && !defined($editor_sec)) {
4648: $can_edit = 1;
4649: }
4650: }
4651: }
4652: return $can_edit;
4653: }
4654:
4655: sub check_group_priv {
4656: my ($group,$grp_priv) = @_;
4657: foreach my $priv ('mdg','vcg') {
4658: my $checkcourse = $env{'request.course.id'}.
4659: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4660: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4661: return 'ok';
4662: }
4663: }
4664: if ($grp_priv && $group ne '') {
4665: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4666: return 'ok';
4667: }
4668: }
4669: return '';
4670: }
4671:
4672: sub group_args {
4673: my ($group) = @_;
4674: if ($group eq '') { return ''; }
4675: my $extra_args = '&group='.$group;
4676: if (exists($env{'form.ref'})) {
4677: $extra_args .= '&ref='.$env{'form.ref'};
4678: }
4679: return $extra_args;
4680: }
4681:
4682: sub get_resource_title {
4683: my ($symb,$feedurl) = @_;
4684: my ($restitle,$plainurl);
4685: if (defined($symb)) {
4686: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4687: $restitle = &Apache::lonnet::gettitle($plain_symb);
4688: }
4689: if (defined($feedurl)) {
4690: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4691: }
4692: if (!defined($restitle)) {
4693: if (defined($feedurl)) {
4694: $restitle = &Apache::lonnet::gettitle($plainurl);
4695: }
4696: }
4697: if ($plainurl ne $feedurl) {
4698: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4699: if ($plain_filename eq $restitle) {
4700: $restitle = &mt('Untitled resource');
4701: }
4702: }
4703: if ($restitle eq '') {
4704: $restitle = &mt('Untitled resource');
4705: }
4706: return $restitle;
4707: }
4708:
4709: 1;
4710: __END__
4711:
4712:
4713: =pod
4714:
4715: =head1 NAME
4716:
4717: Apache::lonfeedback.pm
4718:
4719: =head1 SYNOPSIS
4720:
4721: Handles feedback from students to instructors and system administrators.
4722:
4723: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4724:
4725: Used by lonmsg.pm.
4726:
4727: This is part of the LearningOnline Network with CAPA project
4728: described at http://www.lon-capa.org.
4729:
4730: =head1 OVERVIEW
4731:
4732: None
4733:
4734: =head1 SUBROUTINES
4735:
4736: =over
4737:
4738: =item discussion_open()
4739:
4740: =item discussion_visible()
4741:
4742: =item discussion_vote_available()
4743:
4744: =item get_realsymb()
4745:
4746: =item list_discussion()
4747:
4748: =item can_see_hidden()
4749:
4750: =item discussion_link()
4751:
4752: =item send_feedback_link()
4753:
4754: =item send_message_link()
4755:
4756: =item action_links_bar()
4757:
4758: =item postingform_display()
4759:
4760: =item build_posting_display
4761:
4762: =item filter_regexp()
4763:
4764: =item get_post_contents()
4765:
4766: =item replicate_attachments()
4767:
4768: =item mail_screen()
4769:
4770: =item print_display_options()
4771:
4772: =item print_sortfilter_options()
4773:
4774: =item print_showposters()
4775:
4776: =item get_post_versions()
4777:
4778: =item get_post_attachments()
4779:
4780: =item fail_redirect()
4781:
4782: =item redirect_back()
4783:
4784: =item no_redirect_back()
4785:
4786: =item screen_header()
4787:
4788: =item resource_output()
4789:
4790: =item clear_out_html()
4791:
4792: =item assemble_email()
4793:
4794: =item feedback_available()
4795:
4796: =item send_msg()
4797:
4798: =item adddiscuss()
4799:
4800: =item get_discussion_info()
4801:
4802: =item show_preview()
4803:
4804: =item newline_to_br()
4805:
4806: =item tidy_html()
4807:
4808: =item generate_preview_button()
4809:
4810: =item modify_attachments()
4811:
4812: =item process_attachments()
4813:
4814: =item generate_attachments_button()
4815:
4816: =item extract_attachments()
4817:
4818: =item construct_attachmenturl()
4819:
4820: =item add_blog_checkbox()
4821:
4822: =item has_discussion()
4823:
4824: =item sort_filter_names()
4825:
4826: =item handler()
4827:
4828: =item blocked_reply_or_edit()
4829:
4830: =item wrap_symb()
4831:
4832: =item dewrapper()
4833:
4834: =item get_feedurl()
4835:
4836: =item get_feedurl_and_clean_symb()
4837:
4838: =item editing_allowed()
4839:
4840: =item check_group_priv()
4841:
4842: =item group_args()
4843:
4844: =item get_resource_title()
4845:
4846: =back
4847:
4848: =cut
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