1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.357 2012/06/17 15:30:37 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: package Apache::lonfeedback;
31:
32: use strict;
33: use Apache::Constants qw(:common);
34: use Apache::lonmsg();
35: use Apache::loncommon();
36: use Apache::lontexconvert();
37: use Apache::lonlocal; # must not have ()
38: use Apache::lonnet;
39: use Apache::lonhtmlcommon();
40: use Apache::lonnavmaps;
41: use Apache::lonenc();
42: use Apache::lonrss();
43: use HTML::LCParser();
44: #use HTML::Tidy::libXML;
45: use Apache::lonspeller();
46: use Apache::longroup;
47: use Cwd;
48: use LONCAPA;
49:
50: sub discussion_open {
51: my ($status,$symb)=@_;
52: # Advanced roles can always discuss
53: if ($env{'request.role.adv'}) { return 1; }
54: # Get discussion closing date
55: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
56: # If it is defined and in the future, the instructor wants this discussion to be open
57: if (defined($close) && $close ne '' && $close > time) {
58: return 1;
59: }
60: # It was not explicitly open, check if the problem is available.
61: # If the problem is not available, close the discussion
62: if (defined($status) &&
63: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
64: || $status eq 'OPEN')) {
65: return 0;
66: }
67: # The problem is available, but check if the instructor explictly closed discussion
68: if (defined($close) && $close ne '' && $close < time) {
69: return 0;
70: }
71: return 1;
72: }
73:
74: sub discussion_visible {
75: my ($status)=@_;
76: if (not &discussion_open($status)) {
77: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
78: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
79: if (!$env{'request.role.adv'}) { return 0; }
80: }
81: }
82: return 1;
83: }
84:
85: sub discussion_vote_available {
86: my ($status,$symb)=@_;
87: my $canvote=&Apache::lonnet::EXT('resource.0.discussvote',$symb);
88: if ((lc($canvote) eq 'yes') ||
89: ((lc($canvote) eq 'notended') && (&discussion_open($status,$symb)))) {
90: return 1;
91: }
92: }
93:
94: sub get_realsymb {
95: my ($symb) = @_;
96: my $realsymb = $symb;
97: if ($symb=~/^bulletin___/) {
98: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
99: $filename=~s{^adm/wrapper/}{};
100: $realsymb=&Apache::lonnet::symbread($filename);
101: }
102: return $realsymb;
103: }
104:
105: sub list_discussion {
106: my ($mode,$status,$ressymb,$imsextras,$group)=@_;
107: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
108: unless ($ressymb) { return ''; }
109: $ressymb=&wrap_symb($ressymb);
110: my $outputtarget=$env{'form.grade_target'};
111: if (defined($env{'form.export'})) {
112: if($env{'form.export'}) {
113: $outputtarget = 'export';
114: }
115: }
116: if (defined($imsextras)) {
117: if ($$imsextras{'caller'} eq 'imsexport') {
118: $outputtarget = 'export';
119: }
120: }
121: if (not &discussion_visible($status)) {
122: if ($mode ne 'board') {
123: &Apache::lonenc::check_encrypt(\$ressymb);
124: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
125: }
126: }
127: if ($group ne '' && $mode eq 'board') {
128: if (&check_group_priv($group,'vgb') ne 'ok') {
129: return '';
130: }
131: }
132:
133: my ($blocked,$blocktext) =
134: &Apache::loncommon::blocking_status('boards');
135: if ($blocked) {
136: $blocktext = '<br /><div class="LC_feedback_link"><span class="LC_feedback_link">'.$blocktext."</span>";
137: &Apache::lonenc::check_encrypt(\$ressymb);
138: if ($mode ne 'board') {
139: $blocktext.=&send_message_link($ressymb).'</div>';
140: }else{
141: $blocktext.="</div>";
142: }
143: return $blocktext;
144: }
145:
146: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
147: my $discussiononly=0;
148: if ($mode eq 'board') { $discussiononly=1; }
149: unless ($env{'request.course.id'}) { return ''; }
150: my $crs='/'.$env{'request.course.id'};
151: my $cid=$env{'request.course.id'};
152: if ($env{'request.course.sec'}) {
153: $crs.='_'.$env{'request.course.sec'};
154: }
155: $crs=~s/\_/\//g;
156: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
157: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
158: && ($ressymb=~/$LONCAPA::assess_re/));
159:
160: my %usernamesort = ();
161: my %namesort =();
162: my %subjectsort = ();
163:
164: # Get discussion display settings for this discussion
165: my $lastkey = $ressymb.'_lastread';
166: my $showkey = $ressymb.'_showonlyunread';
167: my $markkey = $ressymb.'_showonlyunmark',
168: my $visitkey = $ressymb.'_visit';
169: my $ondispkey = $ressymb.'_markondisp';
170: my $userpickkey = $ressymb.'_userpick';
171: my $toggkey = $ressymb.'_readtoggle';
172: my $readkey = $ressymb.'_read';
173: $ressymb=$encsymb;
174: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
175: my %discinfo = ();
176: my $showonlyunread = 0;
177: my $showunmark = 0;
178: my $markondisp = 0;
179: my $prevread = 0;
180: my $previous = 0;
181: my $visit = 0;
182: my $newpostsflag = 0;
183: my @posters = split(/\&/,$dischash{$userpickkey});
184:
185: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
186: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
187: my $sortposts = $env{'form.sortposts'};
188: my $statusfilter = $env{'form.statusfilter'};
189: my @sectionpick = split(/,/,$env{'form.sectionpick'});
190: my @grouppick = split(/,/,$env{'form.grouppick'});
191: my @rolefilter = split(/,/,$env{'form.rolefilter'});
192:
193: my $totposters = $env{'form.totposters'};
194: $previous = $env{'form.previous'};
195: if ($previous > 0) {
196: $prevread = $previous;
197: } elsif (defined($dischash{$lastkey})) {
198: unless ($dischash{$lastkey} eq '') {
199: $prevread = $dischash{$lastkey};
200: }
201: }
202:
203: my $cdom = $env{'course.'.$cid.'.domain'};
204: my $cnum = $env{'course.'.$cid.'.num'};
205: my $crstype = &Apache::loncommon::course_type();
206:
207: # Get information about students and non-students in course for filtering display of posts
208: my %roleshash = ();
209: my %roleinfo = ();
210: my ($classgroups,$studentgroups);
211: if ($env{'form.rolefilter'}) {
212: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
213: foreach my $rolekey (keys(%roleshash)) {
214: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
215: if ($role =~ /^cr/) {
216: $role = 'cr';
217: }
218: my ($end,$start) = split(/:/,$roleshash{$rolekey});
219: my $now = time;
220: my $status = 'Active';
221: if (($now < $start) || ($end > 0 && $now > $end)) {
222: $status = 'Expired';
223: }
224: if ($uname && $udom) {
225: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
226: }
227: }
228: my ($classlist,$keylist) =
229: &Apache::loncoursedata::get_classlist($cdom,$cnum);
230: my $sec_index = &Apache::loncoursedata::CL_SECTION();
231: my $status_index = &Apache::loncoursedata::CL_STATUS();
232: while (my ($student,$data) = each %$classlist) {
233: my ($section,$status) = ($data->[$sec_index],
234: $data->[$status_index]);
235: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
236: }
237: ($classgroups,$studentgroups) =
238: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
239: $cdom,$cnum);
240: }
241:
242: # Get discussion display default settings for user
243: if ($env{'environment.discdisplay'} eq 'unread') {
244: $showonlyunread = 1;
245: }
246: if ($env{'environment.discmarkread'} eq 'ondisp') {
247: $markondisp = 1;
248: }
249:
250: # Override user's default if user specified display setting for this discussion
251: if (defined($dischash{$ondispkey})) {
252: unless ($dischash{$ondispkey} eq '') {
253: $markondisp = $dischash{$ondispkey};
254: }
255: }
256: if ($markondisp) {
257: $discinfo{$lastkey} = time;
258: }
259:
260: if (defined($dischash{$showkey})) {
261: unless ($dischash{$showkey} eq '') {
262: $showonlyunread = $dischash{$showkey};
263: }
264: }
265:
266: if (defined($dischash{$markkey})) {
267: unless ($dischash{$markkey} eq '') {
268: $showunmark = $dischash{$markkey};
269: }
270: }
271:
272: if (defined($dischash{$visitkey})) {
273: unless ($dischash{$visitkey} eq '') {
274: $visit = $dischash{$visitkey};
275: }
276: }
277: $visit ++;
278:
279: my $seeid;
280: if (&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:
285: # Is voting on discussions available
286: my $realsymb = &get_realsymb($ressymb);
287: my $canvote = &discussion_vote_available($status,$realsymb);
288:
289: my @discussionitems=();
290: my %shown = ();
291: my @posteridentity=();
292:
293: my $current=0;
294: my $visible=0;
295: my @depth=();
296: my @replies = ();
297: my %alldiscussion=();
298: my %imsitems=();
299: my %imsfiles=();
300: my %notshown = ();
301: my %newitem = ();
302: my $maxdepth=0;
303: my %anonhash=();
304: my $anoncnt=0;
305:
306: my $now = time;
307: $discinfo{$visitkey} = $visit;
308:
309: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
310: &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,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
311:
312: my $discussion='';
313: my $manifestfile;
314: my $manifestok=0;
315: my $tempexport;
316: my $imsresources;
317: my $copyresult;
318:
319: my $function = &Apache::loncommon::get_users_function();
320: my %lt = &Apache::lonlocal::texthash(
321: 'cuse' => 'My settings for this discussion',
322: 'allposts' => 'All posts',
323: 'unread' => 'New posts only',
324: 'unmark' => 'Unread only',
325: 'ondisp' => 'Once displayed',
326: 'onmark' => 'Once marked not NEW',
327: 'toggoff' => 'Off',
328: 'toggon' => 'On',
329: 'disa' => 'Posts to be displayed',
330: 'npce' => 'Posts cease to be marked "NEW"',
331: 'epcb' => 'Each post can be toggled read/unread',
332: 'chgt' => 'Change',
333: 'disp' => 'Display',
334: 'nolo' => 'Not new',
335: 'togg' => 'Toggle read/unread',
336: 'aner' => 'An error occurred opening the manifest file.',
337: 'difo' => 'Discussion for',
338: 'aerr' => 'An error occurred opening the export file for posting',
339: 'aysu' => 'Are you sure you want to delete this post?',
340: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
341: 'bwco' => 'but will continue to be visible to your instructor',
342: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
343: 'discussions' => 'DISCUSSIONS'
344: );
345:
346: my $currdisp = $lt{'allposts'};
347: my $currmark = $lt{'onmark'};
348: my $currtogg = $lt{'toggoff'};
349: my $dispchange = $lt{'unread'};
350: my $markchange = $lt{'ondisp'};
351: my $toggchange = $lt{'toggon'};
352: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
353: my $displinkA = 'onlyunread';
354: my $displinkB = 'onlyunmark';
355: my $marklink = 'markondisp';
356: my $togglink = 'toggon';
357:
358: if ($markondisp) {
359: $currmark = $lt{'ondisp'};
360: $markchange = $lt{'onmark'};
361: $marklink = 'markonread';
362: }
363:
364: if ($showonlyunread) {
365: $currdisp = $lt{'unread'};
366: $dispchange = $lt{'allposts'};
367: $displinkA = 'allposts';
368: }
369:
370: if ($showunmark) {
371: $currdisp = $lt{'unmark'};
372: $dispchange = $lt{'unmark'};
373: $displinkA='allposts';
374: $displinkB='onlyunread';
375: $showonlyunread = 0;
376: }
377:
378: if ($dischash{$toggkey}) {
379: $currtogg = $lt{'toggon'};
380: $toggchange = $lt{'toggoff'};
381: $togglink = 'toggoff';
382: }
383:
384: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
385:
386: if ($newpostsflag) {
387: $chglink .= '&previous='.$prevread;
388: }
389: $chglink.=&group_args($group);
390:
391: if ($visible) {
392: # Print the discusssion
393: if ($outputtarget eq 'tex') {
394: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
395: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
396: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
397: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
398: } elsif ($outputtarget eq 'export') {
399: # Create temporary directory if this is an export
400: my $now = time;
401: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
402: $tempexport = $$imsextras{'tempexport'};
403: if (!-e $tempexport) {
404: mkdir($tempexport,0700);
405: }
406: $tempexport .= '/'.$$imsextras{'count'};
407: if (!-e $tempexport) {
408: mkdir($tempexport,0700);
409: }
410: } else {
411: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
412: if (!-e $tempexport) {
413: mkdir($tempexport,0700);
414: }
415: $tempexport .= '/'.$now;
416: if (!-e $tempexport) {
417: mkdir($tempexport,0700);
418: }
419: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
420: }
421: if (!-e $tempexport) {
422: mkdir($tempexport,0700);
423: }
424: # open manifest file
425: my $manifest = '/imsmanifest.xml';
426: my $manifestfilename = $tempexport.$manifest;
427: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
428: $manifestok=1;
429: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
430: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
431: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
432: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
433: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
434: <organizations default="$ressymb">
435: <organization identifier="$ressymb">
436: <title>$lt{'difo'} $ressymb</title>\n|;
437: } else {
438: $discussion .= $lt{'aner'}.'<br />';
439: }
440: } else {
441: my $colspan=$maxdepth+1;
442: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
443: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
444: var symbparm = symb+':::'+idx
445: var prevparm = ""
446: if (newflag == 1) {
447: prevparm = "&previous="+previous
448: }
449: if (caller == 'studentdelete') {
450: if (confirm("$lt{'aysu'}\\n$lt{'dpwn'},\\n$lt{'bwco'}")) {
451: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
452: }
453: } else {
454: if (caller == 'seeiddelete') {
455: if (confirm("$lt{'aysu'}\\n$lt{'depo'}")) {
456: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
457: }
458: }
459: }
460: }
461: |);
462: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
463: "\n".'<table width="100%" class="LC_discussion">';
464: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
465: $newpostsflag,$group,
466: $prevread,$markondisp,$seehidden);
467: my $escsymb=&escape($ressymb);
468: my $numhidden = keys(%notshown);
469: if ($numhidden > 0) {
470: my $colspan = $maxdepth+1;
471: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
472: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
473: if ($newpostsflag) {
474: $discussion .= '&previous='.$prevread;
475: }
476: $discussion .= &group_args($group);
477: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
478: $numhidden.' ';
479: if ($showunmark) {
480: $discussion .= &mt('posts previously marked read');
481: } else {
482: $discussion .= &mt('previously viewed posts');
483: }
484: $discussion .= '<br/></td></tr>';
485: }
486: }
487:
488: # Choose sort mechanism
489: my @showposts = ();
490: if ($sortposts eq 'descdate') {
491: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
492: } elsif ($sortposts eq 'thread') {
493: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
494: } elsif ($sortposts eq 'subject') {
495: foreach my $key (sort(keys(%subjectsort))) {
496: push(@showposts, @{$subjectsort{$key}});
497: }
498: } elsif ($sortposts eq 'username') {
499: foreach my $domain (sort(keys(%usernamesort))) {
500: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
501: push(@showposts, @{$usernamesort{$domain}{$key}});
502: }
503: }
504: } elsif ($sortposts eq 'lastfirst') {
505: foreach my $last (sort(keys(%namesort))) {
506: foreach my $key (sort(keys(%{$namesort{$last}}))) {
507: push(@showposts, @{$namesort{$last}{$key}});
508: }
509: }
510: } else {
511: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
512: }
513: my $currdepth = 0;
514: my $firstidx = $alldiscussion{$showposts[0]};
515: foreach my $post (@showposts) {
516: unless (($sortposts eq 'thread') ||
517: (($sortposts eq '') && (!$env{'environment.unthreadeddiscussion'})) ||
518: ($outputtarget eq 'export')) {
519: $alldiscussion{$post} = $post;
520: }
521: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
522: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
523: $discussion.="\n<tr>";
524: }
525: my $thisdepth=$depth[$alldiscussion{$post}];
526: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
527: for (1..$thisdepth) {
528: $discussion.='<td> </td>';
529: }
530: }
531: my $colspan=$maxdepth-$thisdepth+1;
532: if ($outputtarget eq 'tex') {
533: #cleanup block
534: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
535: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
536: my $threadinsert='';
537: if ($thisdepth > 0) {
538: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
539: }
540: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
541: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
542:
543: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
544: $discussion.=$discussionitems[$alldiscussion{$post}];
545: } elsif ($outputtarget eq 'export') {
546: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
547: if ($manifestok) {
548: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
549: print $manifestfile ' </item>'."\n";
550: }
551: $currdepth = $depth[$alldiscussion{$post}];
552: print $manifestfile "\n".
553: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
554: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
555: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
556: $imsresources .= "\n".
557: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
558: '<file href="'.$postfilename.'">'."\n".
559: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
560: '</resource>';
561: }
562: my $postingfile;
563: my $postingfilename = $tempexport.'/'.$postfilename;
564: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
565: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
566: $imsitems{$alldiscussion{$post}}{'title'}.' '.
567: $imsitems{$alldiscussion{$post}}{'sender'}.
568: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
569: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
570: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
571: close($postingfile);
572: } else {
573: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
574: }
575: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
576: } else {
577: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
578: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
579: '</td></tr>';
580: }
581: }
582: }
583: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
584: my $colspan=$maxdepth+1;
585: $discussion .= <<END;
586: <tr>
587: <td colspan="$colspan">
588: <table width="100%">
589: <tr>
590: <td class="LC_disc_action_left">
591: <font size="-1"><b>$lt{'cuse'}</b>:
592: END
593: if ($newpostsflag) {
594: $discussion .=
595: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
596: if ($dischash{$toggkey}) {
597: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
598: }
599: } else {
600: if ($dischash{$toggkey}) {
601: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
602: } else {
603: $discussion .=
604: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
605: }
606: }
607: $discussion .= <<END;
608: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
609: </td>
610: END
611: if ($sortposts) {
612: my %sort_types = ();
613: my %role_types = ();
614: my %status_types = ();
615: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
616:
617: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
618: if (defined($env{'form.totposters'})) {
619: $discussion .= &mt('Posts by').':';
620: if ($totposters > 0) {
621: foreach my $poster (@posters) {
622: $discussion .= ' '.$poster.',';
623: }
624: $discussion =~ s/,$//;
625: } else {
626: $discussion .= &mt('None selected');
627: }
628: } else {
629: my $filterchoice ='';
630: if (@sectionpick > 0) {
631: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
632: $filterchoice .= ' ';
633: }
634: if (@grouppick > 0) {
635: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
636: $filterchoice .= ' ';
637: }
638: if (@rolefilter > 0) {
639: $filterchoice .= '<i>'.&mt('roles').'</i>-';
640: foreach my $role (@rolefilter) {
641: $filterchoice .= ' '.$role_types{$role}.',';
642: }
643: $filterchoice =~ s/,$//;
644: $filterchoice .= '<br />'.(' ' x8);
645: }
646: if ($statusfilter) {
647: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
648: }
649: if ($filterchoice) {
650: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
651: }
652: }
653: $discussion .= '</font></td>';
654:
655: }
656: if ($dischash{$toggkey}) {
657: my $storebutton = &mt('Save read/unread changes');
658: $discussion.='<td align="right">'.
659: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
660: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
661: ' onclick="this.form.submit();" />'."\n".
662: '</td>';
663: }
664: $discussion .= (<<END);
665: </tr>
666: </table>
667: </td>
668: </tr>
669: END
670: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
671: $newpostsflag,$group,
672: $prevread,$markondisp,$seehidden);
673: $discussion .= "</table></form>\n";
674: }
675: if ($outputtarget eq 'export') {
676: if ($manifestok) {
677: while ($currdepth > 0) {
678: print $manifestfile " </item>\n";
679: $currdepth --;
680: }
681: print $manifestfile qq|
682: </organization>
683: </organizations>
684: <resources>
685: $imsresources
686: </resources>
687: </manifest>
688: |;
689: close($manifestfile);
690: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
691: $discussion = $copyresult;
692: } else {
693:
694: #Create zip file in prtspool
695:
696: my $imszipfile = '/prtspool/'.
697: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
698: time.'_'.rand(1000000000).'.zip';
699: my $cwd = &getcwd();
700: my $imszip = '/home/httpd/'.$imszipfile;
701: chdir $tempexport;
702: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
703: close(OUTPUT);
704: chdir $cwd;
705: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive','<a href="'.$imszipfile.'">').'</a><br />';
706: if ($copyresult) {
707: $discussion .= &mt('The following errors occurred during export').' - <br />'.$copyresult;
708: }
709: }
710: } else {
711: $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 />';
712: }
713: return $discussion;
714: }
715: }
716: if ($discussiononly) {
717: my $now = time;
718: my $attachnum = 0;
719: my $currnewattach = [];
720: my $currdelold = [];
721: my $comment = '';
722: my $subject = '';
723: if ($env{'form.origpage'}) {
724: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
725: $subject = &unescape($env{'form.subject'});
726: $comment = &unescape($env{'form.comment'});
727: my @keepold = ();
728: &process_attachments($currnewattach,$currdelold,\@keepold);
729: if (@{$currnewattach} > 0) {
730: $attachnum += @{$currnewattach};
731: }
732: }
733: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
734: if (($group ne '') && ($mode eq 'board')) {
735: if ((&check_group_priv($group,'pgd') eq 'ok') &&
736: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
737: $discussion .=
738: &postingform_display($mode,$ressymb,$now,$subject,
739: $comment,$outputtarget,$attachnum,
740: $currnewattach,$currdelold,
741: $group,$crstype);
742: }
743: } else {
744: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
745: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
746:
747: $discussion.=
748: &postingform_display($mode,$ressymb,$now,$subject,
749: $comment,$outputtarget,$attachnum,
750: $currnewattach,$currdelold,'',$crstype);
751: } else {
752: $discussion.= '<span class="LC_feedback_link">'.
753: &mt('This discussion is closed.').'</span>';
754: }
755: }
756: }
757: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
758: $discussion.= '<span class="LC_feedback_link">'.
759: &mt('This discussion is closed.').'</span>';
760: }
761: } elsif ($outputtarget ne 'tex') {
762: $discussion.='<div class="LC_feedback_link">';
763: if (&discussion_open($status) &&
764: &Apache::lonnet::allowed('pch',
765: $env{'request.course.id'}.
766: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
767: $discussion.= &send_feedback_link($ressymb);
768: if ($env{'request.role.adv'}) {
769: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
770: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
771: if (defined($close) && $close ne '' && $close < time) {
772: if ($canvote eq 'notended') {
773: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
774: &Apache::lonnet::plaintext('st',$crstype));
775: } else {
776: $discussion .= ' '.&mt('(Closed for [_1] roles)',
777: &Apache::lonnet::plaintext('st',$crstype));
778: }
779: }
780: }
781: } else {
782: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
783: }
784: $discussion.= &send_message_link($ressymb).'</div>';
785: }
786: return $discussion;
787: }
788:
789: sub can_see_hidden {
790: my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
791: my $seehidden;
792: if ($env{'request.course.id'}) {
793: unless ($cdom ne '' && $cnum ne '') {
794: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
795: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
796: }
797: if ($crs eq '') {
798: $crs = '/'.$env{'request.course.id'};
799: if ($env{'request.course.sec'}) {
800: $crs.='_'.$env{'request.course.sec'};
801: }
802: $crs=~s{_}{/}g;
803: }
804: if ($mode eq '') {
805: $mode='board';
806: if ($feedurl =~ /$LONCAPA::assess_re/) {
807: $mode='problem';
808: }
809: }
810: if (($group ne '') && ($mode eq 'board') &&
811: ($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
812: if (&check_group_priv($group,'dgp') eq 'ok') {
813: $seehidden = 1;
814: }
815: } else {
816: $seehidden=&Apache::lonnet::allowed('rin',$crs);
817: }
818: }
819: return $seehidden;
820: }
821:
822: sub discussion_link {
823: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
824: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
825: if ($flag) { $link .= '&previous='.$prev; }
826: if ($adds) { $link .= $adds; }
827: my $width=600;
828: my $height=600;
829: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
830: $width=300;
831: $height=200;
832: }
833: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
834: }
835:
836:
837: sub send_feedback_link {
838: my ($ressymb) = @_;
839: return '<span class="LC_feedback_link">'.
840: &discussion_link($ressymb,
841: '<img alt="" class="LC_noBorder" src="'.
842: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
843: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
844: 'replydisc').
845: '</span>';
846: }
847:
848: sub send_message_link {
849: my ($ressymb) = @_;
850: my $output = '<span class="LC_message_link">'.
851: &discussion_link($ressymb,
852: '<img alt="" class="LC_noBorder" src="'.
853: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
854: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
855: 'sendmessageonly').
856: '</span>';
857: return $output;
858: }
859:
860: sub action_links_bar {
861: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
862: $seehidden) = @_;
863: my $discussion = '<tr><td colspan="'.$colspan.'">'.
864: '<table width="100%"><tr>'.
865: '<td class="LC_disc_action_left">';
866: my $escsymb=&escape($ressymb);
867: if ($visible) {
868: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
869: if ($newpostsflag) {
870: $discussion .= '&previous='.$prevread;
871: }
872: $discussion .= &group_args($group);
873: $discussion .='">'.&mt('Threaded View').'</a> '.
874: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
875: if ($newpostsflag) {
876: $discussion .= '&previous='.$prevread;
877: }
878: $discussion .= &group_args($group);
879: $discussion .='">'.&mt('Chronological View').'</a> ';
880:
881: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
882: if ($newpostsflag) {
883: $otherviewurl .= '&previous='.$prevread;
884: }
885: $otherviewurl .= &group_args($group);
886: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
887: $discussion .= '<br />';
888: }
889: $discussion .='<a href="/adm/feedback?export='.$escsymb;
890: if ($newpostsflag) {
891: $discussion .= '&previous='.$prevread;
892: }
893: $discussion .= &group_args($group);
894: $discussion .= '">'.&mt('Export').'</a>';
895: if ($seehidden) {
896: $discussion .= ' ';
897: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
898: if ($newpostsflag) {
899: $discussion .= '&previous='.$prevread;
900: }
901: $discussion .= &group_args($group);
902: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
903: }
904: $discussion.='</td>';
905: if ($newpostsflag) {
906: if (!$markondisp) {
907: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
908: $discussion .= &group_args($group);
909: $discussion .= '">'.
910: &mt('My general preferences on what is marked as NEW').
911: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
912: $discussion .= &group_args($group);
913: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
914: } else {
915: $discussion .= '<td> </td>';
916: }
917: } else {
918: $discussion .= '<td> </td>';
919: }
920: $discussion .= '</tr></table></td></tr>';
921: return $discussion;
922: }
923:
924: sub postingform_display {
925: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
926: $currnewattach,$currdelold,$group,$crstype) = @_;
927: my $newattachmsg;
928: my %lt = &Apache::lonlocal::texthash(
929: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
930: 'title' => 'Title',
931: 'podi' => 'Post Discussion',
932: 'poan' => 'Post Anonymous Discussion',
933: 'newa' => 'New attachments',
934: );
935: if ($crstype eq 'Community') {
936: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
937: }
938: my ($postingform,$textareaclass);
939: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
940: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
941: $textareaclass = 'class="LC_richDefaultOff"';
942: if ($env{'request.course.id'}) {
943: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
944: undef($textareaclass);
945: }
946: }
947: }
948: $postingform .= (<<ENDDISCUSS);
949: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
950: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
951: <input type="hidden" name="sendit" value="true" />
952: <input type="hidden" name="timestamp" value="$now" />
953: <a name="newpost"></a>
954: <font size="1">$lt{'note'}</font><br />
955: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
956: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
957: ENDDISCUSS
958: if ($env{'form.origpage'}) {
959: $postingform .= '<input type="hidden" name="origpage" value="'.
960: $env{'form.origpage'}.'" />'."\n";
961: foreach my $att (@{$currnewattach}) {
962: $postingform .= '<input type="hidden" name="currnewattach" '.
963: 'value="'.$att.'" />'."\n";
964: }
965: }
966: if (exists($env{'form.ref'})) {
967: $postingform .= '<input type="hidden" name="ref" value="'.
968: $env{'form.ref'}.'" />';
969: }
970: if ($group ne '') {
971: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
972: }
973: my $blockblog = &Apache::loncommon::blocking_status('blogs');
974: if (!$blockblog) {
975: $postingform .= &add_blog_checkbox($crstype);
976: }
977: $postingform .= "</form>\n";
978: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
979: $now,$currnewattach,
980: $currdelold,'',$mode,
981: $blockblog);
982: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
983: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
984: if (@{$currnewattach} > 1) {
985: $newattachmsg .= '<ol>';
986: foreach my $item (@{$currnewattach}) {
987: $item =~ m#.*/([^/]+)$#;
988: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
989: }
990: $newattachmsg .= '</ol>'."\n";
991: } else {
992: $$currnewattach[0] =~ m#.*/([^/]+)$#;
993: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
994: }
995: }
996: $postingform .= $newattachmsg;
997: $postingform .= &generate_preview_button();
998: return $postingform;
999: }
1000:
1001: sub build_posting_display {
1002: 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,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
1003: my @original=();
1004: my @index=();
1005: my $skip_group_check = 0;
1006: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1007: my $escsymb=&escape($ressymb);
1008: # These are the discussion contributions
1009: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1010: $env{'course.'.$env{'request.course.id'}.'.domain'},
1011: $env{'course.'.$env{'request.course.id'}.'.num'});
1012: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1013: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1014: if ($seeid || $canvote) {
1015: # And these are the likes/unlikes
1016: %likes=&Apache::lonnet::dump('disclikes',
1017: $env{'course.'.$env{'request.course.id'}.'.domain'},
1018: $env{'course.'.$env{'request.course.id'}.'.num'},
1019: '^'.$symb.':');
1020: # Array with likes to figure out averages, etc.
1021: @theselikes=();
1022: # Hashes containing likes and unlikes for this user.
1023: %userlikes=();
1024: %userunlikes=();
1025: }
1026: # Is the user allowed to see the real name behind anonymous postings?
1027: my $see_anonymous =
1028: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1029:
1030: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1031: $skip_group_check = 1;
1032: }
1033: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1034: my (%deletions,%hiddens);
1035: if ($contrib{'deleted'}) {
1036: my $deleted = $contrib{'deleted'};
1037: $deleted =~ s/^\.//;
1038: $deleted =~ s/\.$//;
1039: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1040: }
1041: if ($contrib{'hidden'}) {
1042: my $hidden = $contrib{'hidden'};
1043: $hidden =~ s/^\.//;
1044: $hidden =~ s/\.$//;
1045: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1046: }
1047: # Versions if store/restore are used to actually store the messages.
1048: if ($contrib{'version'}) {
1049: my $oldest = $contrib{'1:timestamp'};
1050: if ($prevread eq '0') {
1051: $prevread = $oldest-1;
1052: }
1053: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1054: if ($sortposts) {
1055: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1056: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1057: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1058: }
1059: if ($seeid || $canvote) {
1060: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1061: for (my $id=1;$id<=$contrib{'version'};$id++) {
1062: my $idx=$id;
1063: next if ($contrib{$idx.':deleted'});
1064: next if ($contrib{$idx.':hidden'});
1065: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1066: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1067: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1068: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1069: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1070: $userlikes{$idx} = 1;
1071: }
1072: }
1073: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1074: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1075: $userunlikes{$idx} = 1;
1076: }
1077: }
1078: }
1079: }
1080: }
1081: # Figure out average likes and standard deviation if there are enough
1082: # discussions to warrant that
1083: my $ave=0;
1084: my $stddev=10000;
1085: if ($#theselikes>1) {
1086: my $sum=0;
1087: my $num=$#theselikes+1;
1088: foreach my $thislike (@theselikes) {
1089: $sum+=$thislike;
1090: }
1091: $ave=$sum/$num;
1092: my $sumsq=0;
1093: foreach my $thislike (@theselikes) {
1094: $sumsq+=($thislike-$ave)*($thislike-$ave);
1095: }
1096: $stddev=sqrt($sumsq/$num);
1097: }
1098: # Now we know the average likes $ave and the standard deviation $stddev
1099: # Get the boundaries for markup
1100: $oneplus=$ave+$stddev;
1101: $twoplus=$ave+2.*$stddev;
1102: $oneminus=$ave-$stddev;
1103: $twominus=$ave-2.*$stddev;
1104: }
1105: #
1106: # This is now the real loop. Go through all entries, pick up what we need
1107: #
1108: for (my $id=1;$id<=$contrib{'version'};$id++) {
1109: my $idx=$id;
1110: next if ($contrib{$idx.':deleted'});
1111: next if ($contrib{$idx.':hidden'});
1112: # If we get here, we are actually going to display the message - we don't know where and we don't know if we display
1113: # previous edits, but it counts as one entry
1114: my $posttime = $contrib{$idx.':timestamp'};
1115: if ($prevread <= $posttime) {
1116: $$newpostsflag = 1;
1117: }
1118: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1119: my $origindex='0.';
1120: my $numoldver=0;
1121: if ($contrib{$idx.':replyto'}) {
1122: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1123: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1124: # this is a follow-up message
1125: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1126: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1127: $origindex=$index[$contrib{$idx.':replyto'}];
1128: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1129: } else {
1130: $original[$idx]=0;
1131: $$depth[$idx]=0;
1132: }
1133: } else {
1134: # this is an original message
1135: $original[$idx]=0;
1136: $$depth[$idx]=0;
1137: }
1138: if ($$replies[$$depth[$idx]]) {
1139: $$replies[$$depth[$idx]]++;
1140: } else {
1141: $$replies[$$depth[$idx]]=1;
1142: }
1143: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1144: $$visible++;
1145: if ($contrib{$idx.':history'}) {
1146: if ($contrib{$idx.':history'} =~ /:/) {
1147: my @oldversions = split(/:/,$contrib{$idx.':history'});
1148: $numoldver = @oldversions;
1149: } else {
1150: $numoldver = 1;
1151: }
1152: }
1153: $$current = $numoldver;
1154: my %messages = ();
1155: my %subjects = ();
1156: my %attachtxt = ();
1157: my %allattachments = ();
1158: my ($screenname,$plainname,$showaboutme);
1159: my $sender = &mt('Anonymous');
1160: # Anonymous users getting number within a discussion
1161: # Since idx is in static order, this should give the same sequence every time.
1162: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1163: unless ($$anonhash{$key}) {
1164: $anoncnt++;
1165: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1166: }
1167: my ($message,$subject,$vgrlink,$ctlink);
1168: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1169:
1170:
1171: # Set up for sorting by subject
1172: unless ($outputtarget eq 'export') {
1173: $message=$messages{$numoldver};
1174: $message.=$attachtxt{$numoldver};
1175: $subject=$subjects{$numoldver};
1176: if ($message) {
1177: if ($hiddens{$idx}) {
1178: $message='<font color="#888888">'.$message.'</font>';
1179: if ($studenthidden) {
1180: $message .='<br /><br />Deleted by poster (student).';
1181: }
1182: }
1183:
1184: if ($subject eq '') {
1185: if (defined($$subjectsort{'__No subject'})) {
1186: push(@{$$subjectsort{'__No subject'}}, $idx);
1187: } else {
1188: @{$$subjectsort{'__No subject'}} = ("$idx");
1189: }
1190: } else {
1191: if (defined($$subjectsort{$subject})) {
1192: push(@{$$subjectsort{$subject}}, $idx);
1193: } else {
1194: @{$$subjectsort{$subject}} = ("$idx");
1195: }
1196: }
1197: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1198: if ($showaboutme) {
1199: $sender = &Apache::loncommon::aboutmewrapper(
1200: $plainname,
1201: $contrib{$idx.':sendername'},
1202: $contrib{$idx.':senderdomain'});
1203: } else {
1204: $sender = $plainname;
1205: }
1206: if ($see_anonymous) {
1207: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1208: $contrib{$idx.':senderdomain'}.')';
1209: }
1210: $sender = '<b>'.$sender.'</b>';
1211: if ($contrib{$idx.':anonymous'}) {
1212: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1213: $screenname;
1214: }
1215: if ($see_anonymous) {
1216: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1217: }
1218: # Set up for sorting by domain, then username
1219: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1220: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1221: }
1222: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1223: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1224: } else {
1225: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1226: }
1227: # Set up for sorting by last name, then first name
1228: my %names = &Apache::lonnet::get('environment',
1229: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1230: ,$contrib{$idx.':sendername'});
1231: my $lastname = $names{'lastname'};
1232: my $firstname = $names{'firstname'};
1233: if ($lastname eq '') {
1234: $lastname = '_';
1235: }
1236: if ($firstname eq '') {
1237: $firstname = '_';
1238: }
1239: unless (defined($$namesort{$lastname})) {
1240: %{$$namesort{$lastname}} = ();
1241: }
1242: if (defined($$namesort{$lastname}{$firstname})) {
1243: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1244: } else {
1245: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1246: }
1247: if ($outputtarget ne 'tex') {
1248: # Add karma stars
1249: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1250: for (my $i=1;$i<=$karma;$i++) {
1251: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1252: }
1253: # Can people edit this?
1254: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1255: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1256: $sender.=' '.
1257: &discussion_link($symb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1258: unless ($seehidden) {
1259: my $grpargs = &group_args($group);
1260: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1261: $sender .= '">'.&mt('Delete').'</a>';
1262: }
1263: }
1264: }
1265: if ($seehidden) {
1266: if ($hiddens{$idx}) {
1267: unless ($studenthidden) {
1268: $sender.=' '.
1269: &discussion_link($symb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1270: }
1271: } else {
1272: $sender.=' '.
1273: &discussion_link($symb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1274: }
1275: my $grpargs = &group_args($group);
1276: $sender.=
1277: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1278: $sender .= &mt('Delete').'</a>';
1279: }
1280: }
1281: } else {
1282: if ($screenname) {
1283: $sender='<i>'.$screenname.'</i>';
1284: } else {
1285: $sender='<i>'.$$anonhash{$key}.'</i>';
1286: }
1287: $sender = '<b>'.$sender.'</b>';
1288: # Set up for sorting by domain, then username for anonymous
1289: unless (defined($$usernamesort{'__anon'})) {
1290: %{$$usernamesort{'__anon'}} = ();
1291: }
1292: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1293: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1294: } else {
1295: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1296: }
1297: # Set up for sorting by last name, then first name for anonymous
1298: unless (defined($$namesort{'__anon'})) {
1299: %{$$namesort{'__anon'}} = ();
1300: }
1301: if (defined($$namesort{'__anon'}{'__anon'})) {
1302: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1303: } else {
1304: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1305: }
1306: }
1307: if ($outputtarget ne 'tex') {
1308: if (&discussion_open($status)) {
1309: if (($group ne '') &&
1310: (&check_group_priv($group,'pgd') eq 'ok')) {
1311: $sender.=' '.
1312: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1313: } elsif (&Apache::lonnet::allowed('pch',
1314: $env{'request.course.id'}.
1315: ($env{'request.course.sec'}?'/'.
1316: $env{'request.course.sec'}:''))) {
1317: $sender.=' '.
1318: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1319: }
1320: }
1321: if ($viewgrades) {
1322: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1323: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1324: }
1325: if ($$dischash{$readkey}=~/\.$idx\./) {
1326: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1327: } else {
1328: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1329: }
1330: }
1331: }
1332: #figure out at what position this needs to print
1333: }
1334: if ($outputtarget eq 'export' || $message) {
1335: my $thisindex=$idx;
1336: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1337: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1338: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1339: }
1340: $$alldiscussion{$thisindex}=$idx;
1341: $$shown{$idx} = 0;
1342: $index[$idx]=$thisindex;
1343: }
1344: if ($outputtarget eq 'export') {
1345: %{$$imsitems{$idx}} = ();
1346: $$imsitems{$idx}{'isvisible'}='true';
1347: if ($hiddens{$idx}) {
1348: $$imsitems{$idx}{'isvisible'}='false';
1349: }
1350: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1351: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1352: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1353: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1354: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1355: $contrib{$idx.':sendername'}.':'.
1356: $contrib{$idx.':senderdomain'}.')';
1357: $$imsitems{$idx}{'isanonymous'}='false';
1358: if ($contrib{$idx.':anonymous'}) {
1359: $$imsitems{$idx}{'isanonymous'}='true';
1360: }
1361: $$imsitems{$idx}{'currversion'}=$numoldver;
1362: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1363: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1364: $$shown{$idx} = 1;
1365: }
1366: } else {
1367: if ($message) {
1368: my $spansize = 2;
1369: my ($uname,$udom);
1370: if ($showonlyunread && $prevread > $posttime) {
1371: $$notshown{$idx} = 1;
1372: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1373: $$notshown{$idx} = 1;
1374: } else {
1375: # apply filters
1376: $uname = $contrib{$idx.':sendername'};
1377: $udom = $contrib{$idx.':senderdomain'};
1378: my $poster = $uname.':'.$udom;
1379: if ($env{'form.totposters'} ne '') {
1380: if ($totposters == 0) {
1381: $$shown{$idx} = 0;
1382: } elsif ($totposters > 0) {
1383: if (grep/^$poster$/,@{$posters}) {
1384: $$shown{$idx} = 1;
1385: }
1386: }
1387: } elsif ($sortposts) {
1388: if ($skiptest) {
1389: $$shown{$idx} = 1;
1390: } else {
1391: foreach my $role (@{$$roleinfo{$poster}}) {
1392: if ($role =~ /^cc:/) {
1393: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1394: if ($role =~ /$cc_regexp/) {
1395: $$shown{$idx} = 1;
1396: last;
1397: }
1398: } elsif ($role =~ /^$rolematch$/) {
1399: $$shown{$idx} = 1;
1400: last;
1401: }
1402: }
1403: }
1404: if ($$shown{$idx} && !$skip_group_check) {
1405: my $showflag = 0;
1406: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1407: foreach my $grp (@{$grouppick}) {
1408: if (grep/^\Q$grp\E$/,
1409: keys(%{$$classgroups{$poster}{active}})) {
1410: $showflag = 1;
1411: last;
1412: }
1413: }
1414: }
1415: if ($showflag) {
1416: $$shown{$idx} = 1;
1417: } else {
1418: $$shown{$idx} = 0;
1419: }
1420: }
1421: } else {
1422: $$shown{$idx} = 1;
1423: }
1424: }
1425: unless ($$notshown{$idx} == 1) {
1426: if ($prevread > 0 && $prevread <= $posttime) {
1427: $$newitem{$idx} = 1;
1428: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1429: } else {
1430: $$newitem{$idx} = 0;
1431: }
1432: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1433: $sender.' '.$vgrlink.' ('.
1434: &Apache::lonlocal::locallocaltime($posttime).')';
1435: if ($$dischash{$toggkey}) {
1436: $$discussionitems[$idx].=' '.$ctlink;
1437: }
1438: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1439: my $likesize="100";
1440: if ($seeid || $canvote) {
1441: # Figure out size based on likes
1442: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1443: if ($thislikes>$twoplus) {
1444: $likesize="200";
1445: } elsif ($thislikes>$oneplus) {
1446: $likesize="150";
1447: }
1448: if ($thislikes<$twominus) {
1449: $likesize="50";
1450: } elsif ($thislikes<$oneminus) {
1451: $likesize="75";
1452: }
1453: }
1454: # Actually glue in the message itself
1455: $$discussionitems[$idx].= '<br /><blockquote>'.
1456: "<div style='font-size:$likesize%'>".
1457: $message.
1458: '</div></blockquote>';
1459: if ($canvote) {
1460: my $ownpost;
1461: if (($uname eq $env{'user.name'}) &&
1462: ($udom eq $env{'user.domain'})) {
1463: $ownpost = 1;
1464: }
1465: # Put in the like and unlike buttons
1466: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1467: my $novote;
1468: if ($ownpost) {
1469: $novote = &mt('No voting for your own posts.');
1470: } else {
1471: $novote = &mt('No voting for hidden posts.');
1472: }
1473: $$discussionitems[$idx].=
1474: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1475: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1476: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1477:
1478: } else {
1479: if ($userlikes{$idx}) {
1480: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1481: } else {
1482: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1483: }
1484: if ($userunlikes{$idx}) {
1485: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1486: } else {
1487: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1488: }
1489: }
1490: }
1491: if ($seeid || $canvote) {
1492: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1493: if ($thislikes>0) {
1494: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1495: } elsif ($thislikes<0) {
1496: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1497: }
1498: }
1499: # If there is any history to this post, inform the reader
1500: if ($contrib{$idx.':history'}) {
1501: my @postversions = ();
1502: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1503: if ($seehidden) {
1504: $$discussionitems[$idx] .= ' '.
1505: &discussion_link($symb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1506: }
1507: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1508: if ($contrib{$idx.':history'} =~ m/:/) {
1509: @postversions = split(/:/,$contrib{$idx.':history'});
1510: } else {
1511: @postversions = ("$contrib{$idx.':history'}");
1512: }
1513: for (my $i=0; $i<@postversions; $i++) {
1514: my $version = $i+1;
1515: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1516: }
1517: }
1518: # end of unless ($$notshown ...)
1519: }
1520: # end of if ($message) ...
1521: }
1522: # end of the else-branch of target being export
1523: }
1524: # end of unless hidden or deleted
1525: }
1526: # end of the loop over all discussion entries
1527: }
1528: # end of "if there actually are any discussions
1529: }
1530: # end of subroutine "build_posting_display"
1531: }
1532:
1533: sub filter_regexp {
1534: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1535: my ($roleregexp,$secregexp,$statusregexp);
1536: my $skiptest = 1;
1537: if (@{$rolefilter} > 0) {
1538: my @okrolefilter = ();
1539: foreach my $role (@{$rolefilter}) {
1540: unless ($role eq '') {
1541: push(@okrolefilter, $role);
1542: }
1543: }
1544: if (@okrolefilter > 0) {
1545: if (grep/^all$/,@okrolefilter) {
1546: $roleregexp='[^:]+';
1547: } else {
1548: if (@okrolefilter == 1) {
1549: $roleregexp=$okrolefilter[0];
1550: } else {
1551: $roleregexp='('.join('|',@okrolefilter).')';
1552: }
1553: $skiptest = 0;
1554: }
1555: }
1556: }
1557: if (@{$sectionpick} > 0) {
1558: my @oksectionpick = ();
1559: foreach my $sec (@{$sectionpick}) {
1560: unless ($sec eq '') {
1561: push(@oksectionpick, $sec);
1562: }
1563: }
1564: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1565: if (@oksectionpick == 1) {
1566: $secregexp = $oksectionpick[0];
1567: } else {
1568: $secregexp .= '('.join('|',@oksectionpick).')';
1569: }
1570: $skiptest = 0;
1571: } else {
1572: $secregexp .= '[^:]*';
1573: }
1574: }
1575:
1576: if (defined($statusfilter) && $statusfilter ne '') {
1577: if ($statusfilter eq 'all') {
1578: $statusregexp = '[^:]+';
1579: } else {
1580: $statusregexp = $statusfilter;
1581: $skiptest = 0;
1582: }
1583: }
1584: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1585: }
1586:
1587:
1588: sub get_post_contents {
1589: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1590: my $discussion = '';
1591: my $start=$numver;
1592: my $end=$numver + 1;
1593: %{$$imsfiles{$idx}}=();
1594: if ($type eq 'allversions') {
1595: unless($seehidden) {
1596: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1597: return $discussion;
1598: }
1599: }
1600: # $$screenname=&Apache::loncommon::screenname(
1601: # $$contrib{$idx.':sendername'},
1602: # $$contrib{$idx.':senderdomain'});
1603: $$plainname=&Apache::loncommon::nickname(
1604: $$contrib{$idx.':sendername'},
1605: $$contrib{$idx.':senderdomain'});
1606: $$screenname=$$contrib{$idx.':screenname'};
1607: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1608: $$contrib{$idx.':senderdomain'},
1609: 'aboutme');
1610: my $sender = $$plainname;
1611: if ($$showaboutme) {
1612: $sender = &Apache::loncommon::aboutmewrapper(
1613: $$plainname,
1614: $$contrib{$idx.':sendername'},
1615: $$contrib{$idx.':senderdomain'});
1616: }
1617: if ($seeid) {
1618: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1619: $$contrib{$idx.':senderdomain'}.')';
1620: }
1621: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1622: my @postversions = ();
1623: if ($type eq 'allversions' || $type eq 'export') {
1624: $start = 0;
1625: if ($$contrib{$idx.':history'}) {
1626: @postversions = split(/:/,$$contrib{$idx.':history'});
1627: }
1628: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1629: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1630: push(@postversions,$$contrib{$idx.':timestamp'});
1631: $end = @postversions;
1632: } else {
1633: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1634: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1635: }
1636:
1637: if ($$contrib{$idx.':anonymous'}) {
1638: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1639: }
1640: if ($type eq 'allversions') {
1641: $discussion=('<b>'.$sender.'</b><br /><ul>');
1642: }
1643: for (my $i=$start; $i<$end; $i++) {
1644: my ($timesent,$attachmsg);
1645: my %currattach = ();
1646: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1647: unless (&contains_block_html($messages->{$i})) {
1648: &newline_to_br(\$messages->{$i});
1649: }
1650: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1651: $$subjects{$i}=~s/\n/\<br \/\>/g;
1652: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1653: if ($attachmenturls) {
1654: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1655: }
1656: if ($type eq 'export') {
1657: $$imsfiles{$idx}{$i} = '';
1658: if ($attachmsg) {
1659: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1660: foreach my $key (sort(keys(%currattach))) {
1661: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1662: my $fname = $1.$3.'/'.$4;
1663: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1664: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1665: }
1666: }
1667: }
1668: } else {
1669: if ($attachmsg) {
1670: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1671: } else {
1672: $$attachtxt{$i} = '';
1673: }
1674: }
1675: if ($type eq 'allversions') {
1676: $discussion.= <<"END";
1677: <li><b>$$subjects{$i}</b>, $timesent<br />
1678: $$messages{$i}<br />
1679: $$attachtxt{$i}</li>
1680: END
1681: }
1682: }
1683: if ($type eq 'allversions') {
1684: $discussion.='</ul>';
1685: return $discussion;
1686: } else {
1687: return;
1688: }
1689: }
1690:
1691: sub replicate_attachments {
1692: my ($attachrefs,$tempexport) = @_;
1693: my $response;
1694: foreach my $id (keys(%{$attachrefs})) {
1695: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1696: my $path = $tempexport;
1697: my $tail = $1.'/'.$2.$4;
1698: my @extras = split(/\//,$tail);
1699: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1700: if (!-e $destination) {
1701: my $i= 0;
1702: while ($i<@extras) {
1703: $path .= '/'.$extras[$i];
1704: if (!-e $path) {
1705: mkdir($path,0700);
1706: }
1707: $i ++;
1708: }
1709: my ($content,$rtncode);
1710: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1711: if ($uploadreply eq 'ok') {
1712: my $attachcopy;
1713: if ($attachcopy = Apache::File->new('>'.$destination)) {
1714: print $attachcopy $content;
1715: close($attachcopy);
1716: } else {
1717: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1718: }
1719: } else {
1720: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1721: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1722: }
1723: }
1724: }
1725: }
1726: return $response;
1727: }
1728:
1729: sub mail_screen {
1730: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1731: if (exists($env{'form.origpage'})) {
1732: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1733: }
1734:
1735: my %lt = &Apache::lonlocal::texthash(
1736: 'myqu' => 'Question/comment/feedback:',
1737: 'title' => 'Title',
1738: 'reta' => 'Retained attachments',
1739: 'atta' => 'Attachment',
1740: );
1741: if($env{'form.editdisc'} || $env{'form.replydisc'}){
1742: %lt = &Apache::lonlocal::texthash(
1743: 'myqu' => 'Post Discussion',
1744: );
1745: }
1746: my $restitle = &get_resource_title($caller_symb,$feedurl);
1747: my $quote='';
1748: my $subject = '';
1749: my $comment = '';
1750: my $prevtag = '';
1751: my $parentmsg = '';
1752: my ($symb,$idx,$attachmenturls);
1753: my $numoldver = 0;
1754: my $attachmsg = '';
1755: my $newattachmsg = '';
1756: my @currnewattach = ();
1757: my @currdelold = ();
1758: my @keepold = ();
1759: my %attachments = ();
1760: my %currattach = ();
1761: my $attachnum = 0;
1762: my $anonchk = (<<END);
1763: function anonchk() {
1764: for (var i=0; i < document.mailform.discuss.length; i++) {
1765: if (document.mailform.discuss[i].checked) {
1766: document.attachment.discuss.value =
1767: document.mailform.discuss[i].value;
1768: }
1769: }
1770: if (document.mailform.blog.checked) {
1771: document.attachment.blog.value = 1;
1772: }
1773: return
1774: }
1775: END
1776: my $anonscript;
1777: if (exists($env{'form.origpage'})) {
1778: $anonscript = (<<END);
1779: function setposttype() {
1780: var disc = "$env{'form.discuss'}";
1781: for (var i=0; i < document.mailform.discuss.length; i++) {
1782: if (disc == document.mailform.discuss[i].value) {
1783: document.mailform.discuss[i].checked = 1;
1784: }
1785: }
1786: var blog = "$env{'form.blog'}";
1787: if (blog == 1) {
1788: document.mailform.blog.checked=1;
1789: }
1790: return
1791: }
1792: END
1793: } else {
1794: $anonscript = (<<END);
1795: function setposttype() {
1796: return
1797: }
1798: END
1799: }
1800: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1801: if ($env{'form.replydisc'}) {
1802: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1803: } else {
1804: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1805: }
1806: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1807: $env{'course.'.$env{'request.course.id'}.'.domain'},
1808: $env{'course.'.$env{'request.course.id'}.'.num'});
1809: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1810: my $numoldver = 0;
1811: if ($contrib{$idx.':history'}) {
1812: if ($contrib{$idx.':history'} =~ /:/) {
1813: my @oldversions = split(/:/,$contrib{$idx.':history'});
1814: $numoldver = @oldversions;
1815: } else {
1816: $numoldver = 1;
1817: }
1818: }
1819: if ($idx > 0) {
1820: my (%msgversions,%subversions,$htmldecode);
1821: $htmldecode = 0;
1822: if ($env{'form.replydisc'}) {
1823: $htmldecode = 1;
1824: }
1825: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1826: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1827: $numoldver);
1828: $subject = $subversions{$numoldver};
1829: if ($env{'form.replydisc'}) {
1830: $quote = $msgversions{$numoldver};
1831: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1832: } else {
1833: $comment = $msgversions{$numoldver};
1834: }
1835: }
1836: if ($env{'form.editdisc'}) {
1837: $attachmenturls = $contrib{$idx.':attachmenturl'};
1838: if (defined($contrib{$idx.':replyto'})) {
1839: $parentmsg = $contrib{$idx.':replyto'};
1840: }
1841: unless (exists($env{'form.origpage'})) {
1842: my $anonflag = 'nonanon';
1843: if ($contrib{$idx.':anonymous'}) {
1844: $anonflag = 'anon';
1845: }
1846: $anonscript = (<<END);
1847: function setposttype () {
1848: var currtype = "$anonflag";
1849: for (var i=0; i<document.mailform.discuss.length; i++) {
1850: if (document.mailform.elements.discuss[i].value == currtype ) {
1851: document.mailform.elements.discuss[i].checked=1;
1852: }
1853: }
1854: return
1855: }
1856: END
1857: }
1858: }
1859: }
1860: if ($env{'form.previous'}) {
1861: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1862: }
1863: }
1864:
1865: if ($env{'form.origpage'}) {
1866: $subject = &unescape($env{'form.subject'});
1867: $comment = &unescape($env{'form.comment'});
1868: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1869: }
1870: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1871: my $send=&mt('Send');
1872: my $alert = &mt('Please select a feedback type.');
1873: my $js= <<END;
1874: <script type="text/javascript">
1875: //<!--
1876: function gosubmit() {
1877: var rec=0;
1878: if (typeof(document.mailform.elements.discuss)!="undefined") {
1879: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1880: if (document.mailform.elements.discuss.checked ) {
1881: rec=1;
1882: }
1883: } else {
1884: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1885: if (document.mailform.elements.discuss[i].checked ) {
1886: rec=1;
1887: }
1888: }
1889: }
1890: }
1891: if (typeof(document.mailform.elements.blog)!="undefined") {
1892: if (document.mailform.elements.blog.checked) {
1893: rec=1;
1894: }
1895: }
1896:
1897: if (rec) {
1898: if (typeof(document.mailform.onsubmit)=='function') {
1899: document.mailform.onsubmit();
1900: }
1901: document.mailform.submit();
1902: } else {
1903: alert('$alert');
1904: }
1905: }
1906: $anonchk
1907: $anonscript
1908: //-->
1909: </script>
1910: END
1911:
1912: my ($textareaheader,$textareaclass);
1913: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1914: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1915: $textareaclass = 'class="LC_richDefaultOff"';
1916: if ($env{'request.course.id'}) {
1917: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1918: undef($textareaclass);
1919: }
1920: }
1921: }
1922:
1923: # Breadcrumbs
1924: my $brcrum = [{'href' => '',
1925: 'text' => 'Resource Feedback and Discussion'}];
1926:
1927: my %onload = ('onload' => 'window.focus();setposttype();');
1928: my %parms=('add_entries' => \%onload);
1929: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
1930: my $start_page=
1931: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
1932:
1933: if ($quote ne '') {
1934: $quote = &HTML::Entities::decode($quote);
1935: unless (&contains_block_html($quote)) {
1936: &newline_to_br(\$quote);
1937: }
1938: $quote=&Apache::lonhtmlcommon::start_pick_box().
1939: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
1940: &Apache::lontexconvert::msgtexconverted($quote).
1941: &Apache::lonhtmlcommon::row_closure(1).
1942: &Apache::lonhtmlcommon::end_pick_box();
1943: }
1944: my $header='';
1945: unless ($env{'form.modal'}) {
1946: $header="<h2><tt>$restitle</tt></h2>";
1947: }
1948: $r->print(<<END);
1949: $start_page
1950: <h1>$lt{'myqu'}</h1>
1951: $header
1952: <form action="/adm/feedback" method="post" name="mailform"
1953: enctype="multipart/form-data">
1954: $prevtag
1955: <input type="hidden" name="postdata" value="$feedurl" />
1956: <input type="hidden" name="modal" value="$env{'form.modal'}" />
1957: END
1958: if ($env{'form.replydisc'}) {
1959: $r->print(<<END);
1960: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1961: END
1962: } elsif ($env{'form.editdisc'}) {
1963: $r->print(<<END);
1964: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1965: <input type="hidden" name="parentmsg" value="$parentmsg" />
1966: END
1967: }
1968: $r->print(<<END);
1969: $options
1970: <br />
1971: END
1972: $r->print(&Apache::lonhtmlcommon::start_pick_box());
1973: $r->print(<<END);
1974: $quote
1975: <p>
1976: $textareaheader
1977: </p>
1978: <p>
1979: $latexHelp
1980: </p>
1981: <p>
1982: END
1983:
1984:
1985: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
1986: $r->print('<input type="text" name="subject" size="30" value="'.
1987: $subject.'" /></p>');
1988: $r->print(&Apache::lonhtmlcommon::row_closure());
1989: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
1990: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
1991: $textareaclass.'>'.$comment.
1992: '</textarea>');
1993: $r->print(&Apache::lonhtmlcommon::row_closure(1));
1994: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1995:
1996: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1997: if ($env{'form.origpage'}) {
1998: foreach my $attach (@currnewattach) {
1999: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2000: }
2001: foreach my $oldatt (@currdelold) {
2002: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2003: }
2004: }
2005: if ($env{'form.editdisc'}) {
2006: if ($attachmenturls) {
2007: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2008: $attachnum = scalar(keys(%currattach));
2009: foreach my $key (keys(%currattach)) {
2010: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2011: }
2012: }
2013: }
2014: } else {
2015: $r->print(<<END);
2016: <p>
2017: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
2018: </p>
2019: END
2020: }
2021: if (exists($env{'form.group'})) {
2022: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2023: }
2024: if (exists($env{'form.ref'})) {
2025: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2026: }
2027: $r->print(<<END);
2028: <input type="hidden" name="sendit" value="1" />
2029: <input type="button" value="$send" onclick='gosubmit();' />
2030: </form>
2031: END
2032: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2033: my $now = time;
2034: my $ressymb = $symb;
2035: &Apache::lonenc::check_encrypt(\$ressymb);
2036: my $postidx = '';
2037: if ($env{'form.editdisc'}) {
2038: $postidx = $idx;
2039: }
2040: if (@currnewattach > 0) {
2041: $attachnum += @currnewattach;
2042: }
2043: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2044: if ($attachnum > 0) {
2045: if (@currnewattach > 0) {
2046: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2047: if (@currnewattach > 1) {
2048: $newattachmsg .= '<ol>';
2049: foreach my $item (@currnewattach) {
2050: $item =~ m#.*/([^/]+)$#;
2051: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2052: }
2053: $newattachmsg .= '</ol>'."\n";
2054: } else {
2055: $currnewattach[0] =~ m#.*/([^/]+)$#;
2056: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2057: }
2058: }
2059: if ($attachmsg) {
2060: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2061: }
2062: if ($newattachmsg) {
2063: $r->print("$newattachmsg");
2064: }
2065: }
2066: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2067: }
2068: $r->print(&generate_preview_button().
2069: &Apache::loncommon::end_page());
2070:
2071: }
2072:
2073: sub print_display_options {
2074: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2075: &Apache::loncommon::content_type($r,'text/html');
2076: $r->send_http_header;
2077:
2078: my $function = &Apache::loncommon::get_users_function();
2079: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2080: $env{'user.domain'});
2081:
2082: my %lt = &Apache::lonlocal::texthash(
2083: 'pref' => 'Display Preference',
2084: 'curr' => 'Current setting ',
2085: 'actn' => 'Action',
2086: 'deff' => 'Default for all discussions',
2087: 'prca' => 'Preferences can be set for this discussion that determine ....',
2088: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2089: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2090: 'wipa' => 'Whether individual posts can be marked as read/unread',
2091: 'allposts' => 'All posts',
2092: 'unread' => 'New posts only',
2093: 'unmark' => 'Posts not marked read',
2094: 'ondisp' => 'Once displayed',
2095: 'onmark' => 'Once marked not NEW',
2096: 'toggon' => 'Shown',
2097: 'toggoff' => 'Not shown',
2098: 'disa' => 'Posts displayed?',
2099: 'npmr' => 'New posts cease to be identified as "NEW"?',
2100: 'dotm' => 'Option to mark each post as read/unread?',
2101: 'chgt' => 'Change to ',
2102: 'mkdf' => 'Set to ',
2103: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2104: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2105: );
2106:
2107: my $dispchangeA = $lt{'unread'};
2108: my $dispchangeB = $lt{'unmark'};
2109: my $markchange = $lt{'ondisp'};
2110: my $toggchange = $lt{'toggon'};
2111: my $currdisp = $lt{'allposts'};
2112: my $currmark = $lt{'onmark'};
2113: my $discdisp = 'allposts';
2114: my $discmark = 'onmark';
2115: my $currtogg = $lt{'toggoff'};
2116: my $disctogg = 'toggoff';
2117:
2118: if ($dispchgA eq 'allposts') {
2119: $dispchangeA = $lt{'allposts'};
2120: $currdisp = $lt{'unread'};
2121: $discdisp = 'unread';
2122: }
2123:
2124: if ($markchg eq 'markonread') {
2125: $markchange = $lt{'onmark'};
2126: $currmark = $lt{'ondisp'};
2127: $discmark = 'ondisp';
2128: }
2129:
2130: if ($dispchgB eq 'onlyunread') {
2131: $dispchangeB = $lt{'unread'};
2132: $currdisp = $lt{'unmark'};
2133: $discdisp = 'unmark';
2134: }
2135: if ($toggchg eq 'toggoff') {
2136: $toggchange = $lt{'toggoff'};
2137: $currtogg = $lt{'toggon'};
2138: $disctogg = 'toggon';
2139: }
2140:
2141: my $js = <<END;
2142: <script type="text/javascript">
2143: function discdispChk(caller) {
2144: var disctogg = '$toggchg'
2145: if (caller == 0) {
2146: if (document.modifydisp.discdisp[0].checked == true) {
2147: if (document.modifydisp.discdisp[1].checked == true) {
2148: document.modifydisp.discdisp[1].checked = false
2149: }
2150: }
2151: }
2152: if (caller == 1) {
2153: if (document.modifydisp.discdisp[1].checked == true) {
2154: if (document.modifydisp.discdisp[0].checked == true) {
2155: document.modifydisp.discdisp[0].checked = false
2156: }
2157: if (disctogg == 'toggon') {
2158: document.modifydisp.disctogg.checked = true
2159: }
2160: if (disctogg == 'toggoff') {
2161: document.modifydisp.disctogg.checked = false
2162: }
2163: }
2164: }
2165: if (caller == 2) {
2166: var dispchgB = '$dispchgB'
2167: if (disctogg == 'toggoff') {
2168: if (document.modifydisp.disctogg.checked == true) {
2169: if (dispchgB == 'onlyunmark') {
2170: document.modifydisp.discdisp[1].checked = false
2171: }
2172: }
2173: }
2174: }
2175: }
2176:
2177: function setDisp() {
2178: var prev = "$previous"
2179: var chktotal = 0
2180: if (document.modifydisp.discdisp[0].checked == true) {
2181: document.modifydisp.$dispchgA.value = "$symb"
2182: chktotal ++
2183: }
2184: if (document.modifydisp.discdisp[1].checked == true) {
2185: document.modifydisp.$dispchgB.value = "$symb"
2186: chktotal ++
2187: }
2188: if (document.modifydisp.discmark.checked == true) {
2189: document.modifydisp.$markchg.value = "$symb"
2190: chktotal ++
2191: }
2192: if (document.modifydisp.disctogg.checked == true) {
2193: document.modifydisp.$toggchg.value = "$symb"
2194: chktotal ++
2195: }
2196: if (chktotal > 0) {
2197: document.modifydisp.submit()
2198: } else {
2199: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2200: if (prev > 0) {
2201: location.href = "$feedurl?previous=$previous"
2202: } else {
2203: location.href = "$feedurl"
2204: }
2205: }
2206: }
2207: }
2208: </script>
2209: END
2210:
2211:
2212: my $start_page =
2213: &Apache::loncommon::start_page('Discussion display options',$js);
2214: my $end_page =
2215: &Apache::loncommon::end_page();
2216: $r->print(<<END);
2217: $start_page
2218: <form name="modifydisp" method="post" action="/adm/feedback">
2219: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2220: <br />
2221: END
2222: $r->print(&Apache::loncommon::start_data_table());
2223: $r->print(<<END);
2224: <tr>
2225: <th>$lt{'pref'}</td>
2226: <th>$lt{'curr'}</td>
2227: <th>$lt{'actn'}?</td>
2228: </tr>
2229: END
2230: $r->print(&Apache::loncommon::start_data_table_row());
2231: $r->print(<<END);
2232: <td>$lt{'disa'}</td>
2233: <td>$lt{$discdisp}</td>
2234: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2235: <br />
2236: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2237: </td>
2238: END
2239: $r->print(&Apache::loncommon::end_data_table_row());
2240: $r->print(&Apache::loncommon::start_data_table_row());
2241: $r->print(<<END);
2242: <td>$lt{'npmr'}</td>
2243: <td>$lt{$discmark}</td>
2244: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2245: END
2246: $r->print(&Apache::loncommon::end_data_table_row());
2247: $r->print(&Apache::loncommon::start_data_table_row());
2248: $r->print(<<END);
2249: <td>$lt{'dotm'}</td>
2250: <td>$lt{$disctogg}</td>
2251: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2252: END
2253: my $save = &mt('Save');
2254: $r->print(&Apache::loncommon::end_data_table_row());
2255: $r->print(&Apache::loncommon::end_data_table());
2256: $r->print(<<END);
2257: <br />
2258: <br />
2259: <input type="hidden" name="symb" value="$symb" />
2260: <input type="hidden" name="previous" value="$previous" />
2261: <input type="hidden" name="$dispchgA" value="" />
2262: <input type="hidden" name="$dispchgB" value="" />
2263: <input type="hidden" name="$markchg" value="" />
2264: <input type="hidden" name="$toggchg" value="" />
2265: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2266: END
2267: if (exists($env{'form.group'})) {
2268: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2269: }
2270: if (exists($env{'form.ref'})) {
2271: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2272: }
2273: $r->print("
2274: <br />
2275: <br />
2276: </form>
2277: $end_page
2278: ");
2279: return;
2280: }
2281:
2282: sub print_sortfilter_options {
2283: my ($r,$symb,$previous,$feedurl) = @_;
2284:
2285: &Apache::loncommon::content_type($r,'text/html');
2286: $r->send_http_header;
2287:
2288: &Apache::lonenc::check_encrypt(\$symb);
2289: my @sections;
2290: my $section_sel = '';
2291: my $numvisible = 5;
2292: my @groups;
2293: my $group_sel = '';
2294: my $numgroupvis = 5;
2295: my %sectioncount = &Apache::loncommon::get_sections();
2296: my @courseroles = qw(st ad ep ta in);
2297: my $crstype = &Apache::loncommon::course_type();
2298: my $ccrole = 'cc';
2299: if ($crstype eq 'Community') {
2300: $ccrole = 'co';
2301: }
2302: push(@courseroles,$ccrole);
2303:
2304: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2305: @sections = ('all',$env{'request.course.sec'});
2306: $numvisible = 2;
2307: } else {
2308: @sections = sort {$a cmp $b} keys(%sectioncount);
2309: if (scalar(@sections) < 4) {
2310: $numvisible = scalar(@sections) + 1;
2311: }
2312: unshift(@sections,'all'); # Put 'all' at the front of the list
2313:
2314: }
2315: foreach my $sec (@sections) {
2316: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2317: }
2318:
2319: if (&check_group_priv() eq 'ok') {
2320: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2321: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2322: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2323: @groups = sort {$a cmp $b} keys(%curr_groups);
2324: if (scalar(@groups) < 4) {
2325: $numgroupvis = scalar(@groups) + 1;
2326: }
2327: unshift(@groups,'all'); # Put 'all' at the front of the list
2328: } else {
2329: my @coursegroups = split(/:/,$env{'request.course.groups'});
2330: if (@coursegroups > 0) {
2331: @coursegroups = sort {$a cmp $b} @coursegroups;
2332: @groups = ('all',@coursegroups);
2333: if (scalar(@groups) < 4) {
2334: $numgroupvis = scalar(@groups) + 1;
2335: }
2336: } else {
2337: @groups = ('all');
2338: $numgroupvis = 1;
2339: }
2340: }
2341: foreach my $group (@groups) {
2342: $group_sel .= " <option value=\"$group\">$group</option>\n";
2343: }
2344:
2345: my $function = &Apache::loncommon::get_users_function();
2346: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2347: $env{'user.domain'});
2348: my %lt = &Apache::lonlocal::texthash(
2349: 'diop' => 'Display Options',
2350: 'curr' => 'Current setting ',
2351: 'actn' => 'Action',
2352: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2353: 'soor' => 'Sort order',
2354: 'spur' => 'Specific user roles',
2355: 'sprs' => 'Specific role status',
2356: 'spse' => 'Specific sections',
2357: 'spgr' => 'Specific groups',
2358: 'psub' => 'Pick specific users (by name)',
2359: 'shal' => 'Show a list of current posters',
2360: 'stor' => 'Save changes',
2361: );
2362:
2363: my %sort_types = ();
2364: my %role_types = ();
2365: my %status_types = ();
2366: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2367:
2368: my $js = <<END;
2369: <script type="text/javascript">
2370: function verifyFilter() {
2371: var rolenum = 0
2372: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2373: if (document.modifyshown.rolefilter.options[i].selected == true) {
2374: rolenum ++
2375: }
2376: }
2377: if (rolenum == 0) {
2378: document.modifyshown.rolefilter.options[0].selected = true
2379: }
2380:
2381: var secnum = 0
2382: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2383: if (document.modifyshown.sectionpick.options[i].selected == true) {
2384: secnum ++
2385: }
2386: }
2387: if (secnum == 0) {
2388: document.modifyshown.sectionpick.options[0].selected = true
2389: }
2390:
2391: var grpnum = 0
2392: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2393: if (document.modifyshown.grouppick.options[i].selected == true) {
2394: grpnum ++
2395: }
2396: }
2397: if (grpnum == 0) {
2398: document.modifyshown.grouppick.options[0].selected = true
2399: }
2400:
2401: document.modifyshown.submit();
2402: }
2403: </script>
2404: END
2405:
2406: my $start_page=
2407: &Apache::loncommon::start_page('Discussion options',$js);
2408: my $end_page=
2409: &Apache::loncommon::end_page();
2410:
2411: $r->print(<<END);
2412: $start_page
2413: <form name="modifyshown" method="post" action="/adm/feedback">
2414: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2415: <br />
2416: <table border="0">
2417: <tr>
2418: <th>$lt{'soor'}</th>
2419: <th> </th>
2420: <th>$lt{'sprs'}</th>
2421: <th> </th>
2422: <th>$lt{'spur'}</th>
2423: <th> </th>
2424: <th>$lt{'spse'}</th>
2425: <th> </th>
2426: <th>$lt{'spgr'}</th>
2427: <th> </th>
2428: <th>$lt{'psub'}</th>
2429: </tr>
2430: <tr>
2431: <td align="center" valign="top">
2432: <select name="sortposts">
2433: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2434: <option value="descdate">$sort_types{'descdate'}</option>
2435: <option value="thread">$sort_types{'thread'}</option>
2436: <option value="subject">$sort_types{'subject'}</option>
2437: <option value="username">$sort_types{'username'}</option>
2438: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2439: </select>
2440: </td>
2441: <td> </td>
2442: <td align="center" valign="top">
2443: <select name="statusfilter">
2444: <option value="all" selected="selected">$status_types{'all'}</option>
2445: <option value="Active">$status_types{'Active'}</option>
2446: <option value="Expired">$status_types{'Expired'}</option>
2447: <option value="Future">$status_types{'Future'}</option>
2448: </select>
2449: </td>
2450: <td> </td>
2451: <td align="center" valign="top">
2452: <select name="rolefilter" multiple="multiple" size="5">
2453: <option value="all">$role_types{'all'}</option>
2454: <option value="st">$role_types{'st'}</option>
2455: <option value="$ccrole">$role_types{$ccrole}</option>
2456: <option value="in">$role_types{'in'}</option>
2457: <option value="ta">$role_types{'ta'}</option>
2458: <option value="ep">$role_types{'ep'}</option>
2459: <option value="ad">$role_types{'ad'}</option>
2460: <option value="cr">$role_types{'cr'}</option>
2461: </select>
2462: </td>
2463: <td> </td>
2464: <td align="center" valign="top">
2465: <select name="sectionpick" multiple="multiple" size="$numvisible">
2466: $section_sel
2467: </select>
2468: </td>
2469: <td> </td>
2470: <td align="center" valign="top">
2471: <select name="grouppick" multiple="multiple" size="$numvisible">
2472: $group_sel
2473: </select>
2474: </td>
2475: <td> </td>
2476: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2477: </tr>
2478: </table>
2479: <br />
2480: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2481: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2482: <input type="hidden" name="previous" value="$previous" />
2483: <input type="hidden" name="applysort" value="$symb" />
2484: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2485: END
2486: if (exists($env{'form.group'})) {
2487: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2488: }
2489: if (exists($env{'form.ref'})) {
2490: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2491: }
2492: $r->print("
2493: <br />
2494: <br />
2495: </form>
2496: $end_page
2497: ");
2498: }
2499:
2500: sub print_showposters {
2501: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2502:
2503: &Apache::loncommon::content_type($r,'text/html');
2504: $r->send_http_header;
2505:
2506: &Apache::lonenc::check_encrypt(\$symb);
2507: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2508: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2509: my $group = $env{'form.group'};
2510: my $ressymb = &wrap_symb($symb);
2511: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2512: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2513: $cdom,$cnum);
2514: my %namesort = ();
2515: my %postcounts = ();
2516:
2517: my %lt = &Apache::lonlocal::texthash(
2518: sele => 'Select',
2519: full => 'Fullname',
2520: usdo => 'Username:domain',
2521: post => 'Posts',
2522: );
2523: if ($contrib{'version'}) {
2524: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2525: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2526: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2527: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2528: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2529: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2530: my $lastname = $names{'lastname'};
2531: my $firstname = $names{'firstname'};
2532: if ($lastname eq '') {
2533: $lastname = '_';
2534: }
2535: if ($firstname eq '') {
2536: $firstname = '_';
2537: }
2538: unless (defined($namesort{$lastname})) {
2539: %{$namesort{$lastname}} = ();
2540: }
2541: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2542: $postcounts{$poster} ++;
2543: if (defined($namesort{$lastname}{$firstname})) {
2544: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2545: push(@{$namesort{$lastname}{$firstname}}, $poster);
2546: }
2547: } else {
2548: @{$namesort{$lastname}{$firstname}} = ("$poster");
2549: }
2550: }
2551: }
2552: }
2553: }
2554:
2555: my $start_page = &Apache::loncommon::start_page('Discussion options');
2556: my $table_start =&Apache::loncommon::start_data_table();
2557: $r->print(<<END);
2558: $start_page
2559: <form name="pickpostersform" method="post">
2560: <br />
2561: $table_start
2562: <tr>
2563: <th>#</th>
2564: <th>$lt{'sele'}</th>
2565: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2566: <th>$lt{'post'}</th>
2567: </tr>
2568: END
2569: my $count = 0;
2570: foreach my $last (sort(keys(%namesort))) {
2571: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2572: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2573: my ($uname,$udom) = split(/:/,$user);
2574: if (!$uname || !$udom) {
2575: next;
2576: } else {
2577: $count ++;
2578: $r->print(&Apache::loncommon::start_data_table_row().
2579: '<td align="right">'.$count.'</td>
2580: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2581: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2582: <td>'.$postcounts{$user}.'</td>'.
2583: &Apache::loncommon::end_data_table_row());
2584: }
2585: }
2586: }
2587: }
2588: $r->print(&Apache::loncommon::end_data_table());
2589: my $end_page = &Apache::loncommon::end_page();
2590: $r->print(<<END);
2591: <br />
2592: <input type="hidden" name="sortposts" value="$sortposts" />
2593: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2594: <input type="hidden" name="userpick" value="$symb" />
2595: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2596: </form>
2597: $end_page
2598: END
2599: }
2600:
2601: sub get_post_versions {
2602: my ($versions,$incoming,$htmldecode,$numver) = @_;
2603: if ($incoming =~ /^<version num="0">/) {
2604: my $p = HTML::LCParser->new(\$incoming);
2605: my $done = 0;
2606:
2607: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2608: my $num = $token->[1]{num};
2609: my $text = $p->get_text("/version");
2610: if (defined($numver)) {
2611: if ($num == $numver) {
2612: if ($htmldecode) {
2613: $text = &HTML::Entities::decode($text);
2614: }
2615: $$versions{$numver}=$text;
2616: $done = 1;
2617: }
2618: } else {
2619: if ($htmldecode) {
2620: $text = &HTML::Entities::decode($text);
2621: }
2622: $$versions{$num}=$text;
2623: }
2624: }
2625: } else {
2626: if (!defined($numver)) {
2627: $numver = 0;
2628: }
2629: if ($htmldecode) {
2630: $$versions{$numver} = $incoming;
2631: } else {
2632: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2633: }
2634: }
2635: return;
2636: }
2637:
2638: sub get_post_attachments {
2639: my ($attachments,$attachmenturls) = @_;
2640: my $num;
2641: if ($attachmenturls =~ m/^<attachment id="0">/) {
2642: my $p = HTML::LCParser->new(\$attachmenturls);
2643: while (my $token = $p->get_tag("attachment","filename","post")) {
2644: if ($token->[0] eq "attachment") {
2645: $num = $token->[1]{id};
2646: %{$$attachments{$num}} =();
2647: } elsif ($token->[0] eq "filename") {
2648: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2649: } elsif ($token->[0] eq "post") {
2650: my $id = $token->[1]{id};
2651: $$attachments{$num}{$id} = $p->get_text("/post");
2652: }
2653: }
2654: } else {
2655: %{$$attachments{'0'}} = ();
2656: $$attachments{'0'}{'filename'} = $attachmenturls;
2657: $$attachments{'0'}{'0'} = 'n';
2658: }
2659:
2660: return;
2661: }
2662:
2663: sub fail_redirect {
2664: my ($r,$feedurl) = @_;
2665: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2666: my %lt = &Apache::lonlocal::texthash(
2667: 'sorr' => 'Sorry, no recipients ...',
2668: );
2669: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2670: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2671: {'redirect' => [2,$feedurl],
2672: 'only_body' => 1,}));
2673: $r->print(<<ENDFAILREDIR);
2674: <img align="right" src="$logo" />
2675: <b>$lt{'sorr'}</b>
2676: ENDFAILREDIR
2677: $r->print(&Apache::loncommon::end_page());
2678: }
2679:
2680: sub redirect_back {
2681: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2682: my $sorttag = '';
2683: my $roletag = '';
2684: my $statustag = '';
2685: my $sectag = '';
2686: my $grptag = '';
2687: my $userpicktag = '';
2688: my $qrystr = '';
2689: my $prevtag = '';
2690:
2691: &Apache::loncommon::content_type($r,'text/html');
2692: $r->send_http_header;
2693: &dewrapper(\$feedurl);
2694: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2695: if ($previous > 0) {
2696: $qrystr = 'previous='.$previous;
2697: if ($feedurl =~ /\?register=1/) {
2698: $feedurl .= '&'.$qrystr;
2699: } else {
2700: $feedurl .= '?'.$qrystr;
2701: }
2702: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2703: }
2704: if (defined($sort)) {
2705: my $sortqry = 'sortposts='.$sort;
2706: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2707: $feedurl .= '&'.$sortqry;
2708: } else {
2709: $feedurl .= '?'.$sortqry;
2710: }
2711: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2712: if (defined($numpicks)) {
2713: my $userpickqry = 'totposters='.$numpicks;
2714: $feedurl .= '&'.$userpickqry;
2715: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2716: } else {
2717: if (ref($sectionpick) eq 'ARRAY') {
2718: $feedurl .= '&sectionpick=';
2719: $sectag .= '<input type="hidden" name="sectionpick" value="';
2720: foreach my $sec (@{$sectionpick}) {
2721: $feedurl .= $sec.',';
2722: $sectag .= $sec.',';
2723: }
2724: $feedurl =~ s/,$//;
2725: $sectag =~ s/,$//;
2726: $sectag .= '" />';
2727: } else {
2728: $feedurl .= '&sectionpick='.$sectionpick;
2729: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2730: }
2731: if (ref($grouppick) eq 'ARRAY') {
2732: $feedurl .= '&grouppick=';
2733: $sectag .= '<input type="hidden" name="grouppick" value="';
2734: foreach my $grp (@{$grouppick}) {
2735: $feedurl .= $grp.',';
2736: $grptag .= $grp.',';
2737: }
2738: $feedurl =~ s/,$//;
2739: $grptag =~ s/,$//;
2740: $grptag .= '" />';
2741: } else {
2742: $feedurl .= '&grouppick='.$grouppick;
2743: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2744: }
2745: if (ref($rolefilter) eq 'ARRAY') {
2746: $feedurl .= '&rolefilter=';
2747: $roletag .= '<input type="hidden" name="rolefilter" value="';
2748: foreach my $role (@{$rolefilter}) {
2749: $feedurl .= $role.',';
2750: $roletag .= $role.',';
2751: }
2752: $feedurl =~ s/,$//;
2753: $roletag =~ s/,$//;
2754: $roletag .= '" />';
2755: } else {
2756: $feedurl .= '&rolefilter='.$rolefilter;
2757: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2758: }
2759: $feedurl .= '&statusfilter='.$statusfilter;
2760: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2761: }
2762: }
2763: my $grouptag;
2764: if ($group ne '') {
2765: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2766: my $refarg;
2767: if (exists($env{'form.ref'})) {
2768: $refarg = '&ref='.$env{'form.ref'};
2769: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2770: }
2771: if ($feedurl =~ /\?/) {
2772: $feedurl .= '&group='.$group.$refarg;
2773: } else {
2774: $feedurl .= '?group='.$group.$refarg;
2775: }
2776: }
2777: &Apache::lonenc::check_encrypt(\$feedurl);
2778: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2779: my %parms=('only_body' => 1);
2780: if ($env{'form.modal'}) {
2781: $parms{'add_entries'}={'onLoad' => 'document.forms.reldt.submit()'};
2782: } else {
2783: $parms{'redirect'}=[0,$feedurl];
2784: }
2785: my $start_page=
2786: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2787: my $end_page = &Apache::loncommon::end_page();
2788: $r->print(<<ENDREDIR);
2789: $start_page
2790: <img align="right" src="$logo" />
2791: $typestyle
2792: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2793: $blog
2794: $toolarge
2795: <font color="red">$status</font>
2796: <form name="reldt" action="$feedurl" target="loncapaclient">
2797: $prevtag
2798: $sorttag
2799: $statustag
2800: $roletag
2801: $sectag
2802: $grptag
2803: $userpicktag
2804: $grouptag
2805: </form>
2806: $end_page
2807: ENDREDIR
2808: }
2809:
2810: sub no_redirect_back {
2811: my ($r,$feedurl) = @_;
2812: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2813:
2814: my %onload;
2815:
2816: my %body_options = ('only_body' => 1,
2817: 'bgcolor' => '#FFFFFF',
2818: 'add_entries' => \%onload,);
2819:
2820: if ($feedurl !~ m{^/adm/feedback}) {
2821: $body_options{'redirect'} = [2,$feedurl];
2822: }
2823: my $start_page=
2824: &Apache::loncommon::start_page('Feedback not sent',undef,
2825: \%body_options);
2826:
2827: my $end_page = &Apache::loncommon::end_page();
2828:
2829: &Apache::lonenc::check_encrypt(\$feedurl);
2830: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2831: $r->print (<<ENDNOREDIRTWO);
2832: $start_page
2833: <img align="right" src="$logo" />
2834: <b>$nofeed</b>
2835: <br />
2836: $end_page
2837: ENDNOREDIRTWO
2838: }
2839:
2840: sub screen_header {
2841: my ($feedurl,$symb,$group) = @_;
2842: my $crscontent = &mt('Question/Comment/Feedback about course content');
2843: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2844: my $contribdisc = &mt('Contribution to course discussion of resource');
2845: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2846: my $namevis = &mt('name only visible to course faculty');
2847: my $crstype;
2848: if ($env{'request.course.id'}) {
2849: $crstype = &Apache::loncommon::course_type();
2850: if ($crstype eq 'Community') {
2851: $crscontent = &mt('Question/Comment/Feedback about community content');
2852: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2853: $contribdisc = &mt('Contribution to community discussion of resource');
2854: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2855: $namevis = &mt('name only visible to community facilitators');
2856: }
2857: }
2858: my $msgoptions='';
2859: my $discussoptions='';
2860: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2861: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2862: $msgoptions=
2863: '<label><input type="radio" name="discuss" value="author" /> '.
2864: &mt('Feedback to resource author').'</label><br />';
2865: }
2866: my %optionhash=();
2867: foreach my $type ('question','comment','policy') {
2868: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2869: }
2870: if (&feedback_available(1)) {
2871: $msgoptions.=
2872: '<label><input type="radio" name="discuss" value="question" /> '.
2873: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label><br />';
2874: }
2875: if (&feedback_available(0,1)) {
2876: $msgoptions.=
2877: '<label><input type="radio" name="discuss" value="course" /> '.
2878: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2879: '</label><br />';
2880: }
2881: if (&feedback_available(0,0,1)) {
2882: $msgoptions.=
2883: '<label><input type="radio" name="discuss" value="policy" /> '.
2884: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2885: '</label><br />';
2886: }
2887: }
2888: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2889: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2890: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2891: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2892: my $realsymb = &get_realsymb($symb);
2893: if (!$blocked && &discussion_open(undef,$realsymb) &&
2894: (&Apache::lonnet::allowed('pch',
2895: $env{'request.course.id'}.
2896: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2897: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2898: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2899: $contribdisc.
2900: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2901: $anoncontrib.
2902: ' <i>('.$namevis.')</i></label> '.
2903: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2904: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2905: if (!$blockblog) {
2906: $discussoptions.= &add_blog_checkbox($crstype);
2907: }
2908: }
2909: }
2910: if ($msgoptions) {
2911: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2912: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
2913: '<td>'.$msgoptions.'</td></tr>';
2914: }
2915: if ($discussoptions) {
2916: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2917: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
2918: '<td>'.$discussoptions.'</td></tr>';
2919: }
2920: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
2921: }
2922:
2923: sub resource_output {
2924: my ($feedurl) = @_;
2925: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2926: $usersaw=~s/\<body[^\>]*\>//gi;
2927: $usersaw=~s/\<\/body\>//gi;
2928: $usersaw=~s/\<html\>//gi;
2929: $usersaw=~s/\<\/html\>//gi;
2930: $usersaw=~s/\<head\>//gi;
2931: $usersaw=~s/\<\/head\>//gi;
2932: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2933: return $usersaw;
2934: }
2935:
2936: sub clear_out_html {
2937: my ($message,$override)=@_;
2938: # Always allow the <m>-tag
2939: my %html=(M=>1);
2940: # Check if more is allowed
2941: my $cid=$env{'request.course.id'};
2942: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2943: ($override)) {
2944: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2945: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2946: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2947: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2948: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2949: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2950: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2951: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2952: }
2953: # Do the substitution of everything that is not explicitly allowed
2954: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2955: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2956: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2957: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2958: return $message;
2959: }
2960:
2961: sub assemble_email {
2962: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2963: my %lt = &Apache::lonlocal::texthash(
2964: 'prev' => 'Previous attempts of student (if applicable)',
2965: 'orig' => 'Original screen output (if applicable)',
2966: 'corr' => 'Correct Answer(s) (if applicable)',
2967: );
2968: if (&Apache::loncommon::course_type() eq 'Community') {
2969: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2970: }
2971: my $email=<<"ENDEMAIL";
2972: $message
2973: ENDEMAIL
2974: my $citations=<<"ENDCITE";
2975: <h2>$lt{'prev'}</h2>
2976: $prevattempts
2977: <br /><hr />
2978: <h2>$lt{'orig'}</h2>
2979: $usersaw
2980: <h2>$lt{'corr'}</h2>
2981: $useranswer
2982: ENDCITE
2983: return ($email,$citations);
2984: }
2985:
2986:
2987: sub feedback_available {
2988: my ($question,$course,$policy)=@_;
2989: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2990: $course,$policy);
2991: return scalar(%to);
2992: }
2993:
2994: sub send_msg {
2995: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2996: my $status='';
2997: my $sendsomething=0;
2998: my $restitle = &get_resource_title($symb,$feedurl);
2999: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3000: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3001: foreach my $key (keys(%to)) {
3002: if ($key) {
3003: my ($user,$domain) = split(/\:/,$key,2);
3004: if (!defined($user)) {
3005: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3006: } elsif (!defined($domain)) {
3007: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3008: } else {
3009: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3010: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3011: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
3012: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3013: } else {
3014: $sendsomething++;
3015: }
3016: }
3017: }
3018: }
3019:
3020: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3021: # There are two entries within the framework of a course:
3022: # - the URLs for which feedback was provided
3023: # - the total number of contributions
3024: if ($sendsomething) {
3025: my %record=&getfeedbackrecords();
3026: my ($temp)=keys(%record);
3027: unless ($temp=~/^error\:/) {
3028: my %newrecord=();
3029: $newrecord{'resource'}=$feedurl;
3030: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3031: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3032: $status.='<br />'.&mt('Not registered').'<br />';
3033: }
3034: }
3035: }
3036: return ($status,$sendsomething);
3037: }
3038:
3039: # Routine to get the complete feedback records
3040:
3041: sub getfeedbackrecords {
3042: my ($uname,$udom,$course)=@_;
3043: unless ($uname) { $uname=$env{'user.name'}; }
3044: unless ($udom) { $udom=$env{'user.domain'}; }
3045: unless ($course) { $course=$env{'request.course.id'}; }
3046: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3047: return %record;
3048: }
3049:
3050: # Routine to get feedback statistics
3051:
3052: sub getfeedbackstats {
3053: my %record=&getfeedbackrecords(@_);
3054: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3055: }
3056:
3057: # Store feedback credit
3058:
3059: sub storefeedbackpoints {
3060: my ($points,$uname,$udom,$course)=@_;
3061: unless ($points) { $points=0; }
3062: unless ($uname) { $uname=$env{'user.name'}; }
3063: unless ($udom) { $udom=$env{'user.domain'}; }
3064: unless ($course) { $course=$env{'request.course.id'}; }
3065: my %record=('grader_user' => $env{'user.name'},
3066: 'grader_domain' => $env{'user.domain'},
3067: 'points' => $points);
3068: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3069: }
3070:
3071: # Store feedback "likes"
3072:
3073: sub storefeedbacklikes {
3074: my ($likes,$uname,$udom,$course)=@_;
3075: unless ($likes) { $likes=0; }
3076: if ($likes>0) { $likes=1; }
3077: if ($likes<0) { $likes=-1; }
3078: unless ($uname) { $uname=$env{'user.name'}; }
3079: unless ($udom) { $udom=$env{'user.domain'}; }
3080: unless ($course) { $course=$env{'request.course.id'}; }
3081: my %record=&getfeedbackrecords($uname,$udom,$course);
3082: my $totallikes=$record{'totallikes'};
3083: $totallikes+=$likes;
3084: my %newrecord=('likes_user' => $env{'user.name'},
3085: 'likes_domain' => $env{'user.domain'},
3086: 'likes' => $likes,
3087: 'totallikes' => $totallikes);
3088: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3089: }
3090:
3091:
3092: sub adddiscuss {
3093: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3094: my $status='';
3095: my $realsymb = &get_realsymb($symb);
3096: my ($cnum,$cdom);
3097: if ($env{'request.course.id'}) {
3098: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3099: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3100: }
3101: if (&discussion_open(undef,$realsymb) &&
3102: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3103: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3104: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3105: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3106:
3107: my %contrib=('message' => $email,
3108: 'sendername' => $env{'user.name'},
3109: 'senderdomain' => $env{'user.domain'},
3110: 'screenname' => $env{'environment.screenname'},
3111: 'plainname' => $env{'environment.firstname'}.' '.
3112: $env{'environment.middlename'}.' '.
3113: $env{'environment.lastname'}.' '.
3114: $env{'enrironment.generation'},
3115: 'attachmenturl'=> $attachmenturl,
3116: 'subject' => $subject);
3117: if ($env{'form.replydisc'}) {
3118: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3119: }
3120: if ($anon) {
3121: $contrib{'anonymous'}='true';
3122: }
3123: if (($symb) && ($email)) {
3124: my $now = time;
3125: if ($env{'form.editdisc'}) {
3126: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3127: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3128: $contrib{'timestamp'} = $now;
3129: $contrib{'history'} = '';
3130: my $numoldver = 0;
3131: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3132: &Apache::lonenc::check_decrypt(\$oldsymb);
3133: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3134: # get timestamp for last post and history
3135: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3136: $env{'course.'.$env{'request.course.id'}.'.domain'},
3137: $env{'course.'.$env{'request.course.id'}.'.num'});
3138: if (defined($oldcontrib{$oldidx.':replyto'})) {
3139: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3140: }
3141: if (defined($oldcontrib{$oldidx.':history'})) {
3142: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3143: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3144: $numoldver = @oldversions;
3145: } else {
3146: $numoldver = 1;
3147: }
3148: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3149: }
3150: my $numnewver = $numoldver + 1;
3151: if (defined($oldcontrib{$oldidx.':subject'})) {
3152: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3153: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3154: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3155: } else {
3156: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3157: }
3158: }
3159: if (defined($oldcontrib{$oldidx.':message'})) {
3160: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3161: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3162: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3163: } else {
3164: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3165: }
3166: }
3167: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3168: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3169: $oldsymb,$oldidx,\%contrib,
3170: $env{'course.'.$env{'request.course.id'}.'.domain'},
3171: $env{'course.'.$env{'request.course.id'}.'.num'});
3172: $status='Editing class discussion'.($anon?' (anonymous)':'');
3173: } else {
3174: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3175: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3176: $env{'course.'.$env{'request.course.id'}.'.domain'},
3177: $env{'course.'.$env{'request.course.id'}.'.num'});
3178: }
3179: my %storenewentry=($symb => $now);
3180: $status.='<br />'.&mt('Updating discussion time').': '.
3181: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3182: $env{'course.'.$env{'request.course.id'}.'.domain'},
3183: $env{'course.'.$env{'request.course.id'}.'.num'});
3184: }
3185: my %record=&getdiscussionrecords();
3186: my ($temp)=keys(%record);
3187: unless ($temp=~/^error\:/) {
3188: my %newrecord=();
3189: $newrecord{'resource'}=$symb;
3190: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3191: $status.='<br />'.&mt('Registering').': '.
3192: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3193: &updatekarma();
3194: }
3195: } else {
3196: $status.='Failed.';
3197: }
3198: return $status.'<br />';
3199: }
3200:
3201:
3202: # Routine to get the complete discussion records
3203:
3204: sub getdiscussionrecords {
3205: my ($uname,$udom,$course)=@_;
3206: unless ($uname) { $uname=$env{'user.name'}; }
3207: unless ($udom) { $udom=$env{'user.domain'}; }
3208: unless ($course) { $course=$env{'request.course.id'}; }
3209: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3210: return %record;
3211: }
3212:
3213: # Routine to get discussion statistics
3214:
3215: sub getdiscussionstats {
3216: my %record=&getdiscussionrecords(@_);
3217: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3218: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3219: }
3220:
3221: # Calculate discussion karma
3222:
3223: sub calcdiscussionkarma {
3224: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3225: my $karma=0;
3226: if ($votes>0) {
3227: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3228: if ($karma<0) { $karma=0; }
3229: if ($karma>5) { $karma=5; }
3230: }
3231: return $karma;
3232: }
3233:
3234: # Update karma
3235:
3236: sub updatekarma {
3237: my ($uname,$udom,$course)=@_;
3238: unless ($uname) { $uname=$env{'user.name'}; }
3239: unless ($udom) { $udom=$env{'user.domain'}; }
3240: unless ($course) { $course=$env{'request.course.id'}; }
3241: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3242: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3243: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3244: return $karma;
3245: }
3246:
3247: # Retrieve karma
3248:
3249: sub userkarma {
3250: my ($uname,$udom,$course)=@_;
3251: unless ($uname) { $uname=$env{'user.name'}; }
3252: unless ($udom) { $udom=$env{'user.domain'}; }
3253: unless ($course) { $course=$env{'request.course.id'}; }
3254: my $hashkey=$uname.':'.$udom.':'.$course;
3255: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3256: if ($cached) {
3257: return $karma;
3258: }
3259: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3260: $karma=$userdisc{'karma'};
3261: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3262: return $karma;
3263: }
3264:
3265: # Store discussion credit
3266:
3267: sub storediscussionpoints {
3268: my ($points,$uname,$udom,$course)=@_;
3269: unless ($points) { $points=0; }
3270: unless ($uname) { $uname=$env{'user.name'}; }
3271: unless ($udom) { $udom=$env{'user.domain'}; }
3272: unless ($course) { $course=$env{'request.course.id'}; }
3273: my %record=('grader_user' => $env{'user.name'},
3274: 'grader_domain' => $env{'user.domain'},
3275: 'points' => $points);
3276: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3277: }
3278:
3279: # Store discussion "likes"
3280:
3281: sub storediscussionlikes {
3282: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3283: unless ($uname) { $uname=$env{'user.name'}; }
3284: unless ($udom) { $udom=$env{'user.domain'}; }
3285: unless ($course) { $course=$env{'request.course.id'}; }
3286: my %record=&getdiscussionrecords($uname,$udom,$course);
3287: my $totallikes=$record{'totallikes'};
3288: my $totalunlikes=$record{'totalunlikes'};
3289: $totallikes += $chglikes;
3290: $totalunlikes += $chgunlikes;
3291: my %newrecord=('likes_user' => $env{'user.name'},
3292: 'likes_domain' => $env{'user.domain'},
3293: 'totallikes' => $totallikes,
3294: 'totalunlikes' => $totalunlikes,
3295: 'context' => $context);
3296: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3297: if ($status eq 'ok') {
3298: &updatekarma($uname,$udom,$course);
3299: }
3300: return $status;
3301: }
3302:
3303: sub get_discussion_info {
3304: my ($idx,%contrib) = @_;
3305: my $changelast = 0;
3306: my $count = 0;
3307: my $hiddenflag = 0;
3308: my $deletedflag = 0;
3309: my ($hidden,$deleted,%info,$newlastdisc);
3310: my $version = $contrib{'version'};
3311: if ($version) {
3312: for (my $id=$version; $id>0; $id--) {
3313: my $vkeys=$contrib{$id.':keys'};
3314: my @keys=split(/:/,$vkeys);
3315: if (grep(/^hidden$/,@keys)) {
3316: if (!$hiddenflag) {
3317: $hidden = $contrib{$id.':hidden'};
3318: $hiddenflag = 1;
3319: }
3320: } elsif (grep(/^deleted$/,@keys)) {
3321: if (!$deletedflag) {
3322: $deleted = $contrib{$id.':deleted'};
3323: $deletedflag = 1;
3324: }
3325: } else {
3326: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3327: $count++;
3328: $info{$count}{'id'} = $id;
3329: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3330: }
3331: }
3332: }
3333: if ($info{'1'}{'id'} == $idx) {
3334: $changelast = 1;
3335: if ($count > 1) {
3336: $newlastdisc = $info{'2'}{'timestamp'};
3337: } else {
3338: $newlastdisc = 0;
3339: }
3340: }
3341: }
3342: return ($changelast,$newlastdisc);
3343: }
3344:
3345: # ----------------------------------------------------------- Preview function
3346:
3347: sub show_preview {
3348: my ($r) = @_;
3349: &Apache::loncommon::content_type($r,'text/html');
3350: $r->send_http_header;
3351: my $start_page=
3352: &Apache::loncommon::start_page('Preview',undef,
3353: {'only_body' => 1,});
3354:
3355: my $message=&clear_out_html($env{'form.comment'});
3356: &newline_to_br(\$message);
3357: $message=&Apache::lonspeller::markeduptext($message);
3358: $message=&Apache::lontexconvert::msgtexconverted($message);
3359: my $subject=&clear_out_html($env{'form.subject'});
3360: $subject=~s/\n/\<br \/\>/g;
3361: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3362:
3363: my $end_page = &Apache::loncommon::end_page();
3364:
3365: $r->print($start_page
3366: .'<h1>'.&mt('Preview').'</h1>'
3367: .&Apache::lonhtmlcommon::start_pick_box()
3368: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3369: .$subject
3370: .&Apache::lonhtmlcommon::row_closure()
3371: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3372: .$message
3373: .&Apache::lonhtmlcommon::row_closure(1)
3374: .&Apache::lonhtmlcommon::end_pick_box()
3375: .$end_page
3376: );
3377: }
3378:
3379: sub contains_block_html {
3380: my ($message)=@_;
3381: return ($message =~ m{
3382: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3383: \s*
3384: (\w+\=['"]\w+['"])*
3385: \s*
3386: (
3387: \s*/>|
3388: >.*</\1\s*>
3389: )}xs
3390: );
3391: }
3392:
3393: sub tidy_html {
3394: my ($message)=@_;
3395: # my $tidy = HTML::Tidy::libXML->new();
3396: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3397: # $xhtml =~ m/<body>(.*)<\/body>/is;
3398: # my $clean = $1;
3399: # # remove any empty block-level tags
3400: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3401: # $message=$clean;
3402: return $message;
3403: }
3404:
3405: sub newline_to_br {
3406: my ($message)=@_;
3407: my $newmessage;
3408: my $parser=HTML::LCParser->new($message);
3409: while (my $token=$parser->get_token()) {
3410: if ($token->[0] eq 'T') {
3411: my $text=$token->[1];
3412: $text=~s/\n/\<br \/\>/g;
3413: $newmessage.=$text;
3414: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3415: $newmessage.=$token->[1];
3416: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3417: $newmessage.=$token->[2];
3418: } elsif ($token->[0] eq 'S') {
3419: $newmessage.=$token->[4];
3420: }
3421:
3422: }
3423: $$message=$newmessage;
3424: }
3425:
3426: sub generate_preview_button {
3427: my ($formname,$fieldname)=@_;
3428: unless ($formname) { $formname='mailform'; }
3429: unless ($fieldname) { $fieldname='comment'; }
3430: my $pre=&mt("Show Preview and Check Spelling");
3431: return(<<ENDPREVIEW);
3432: <br />
3433: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3434: <input type="hidden" name="subject" />
3435: <input type="hidden" name="comment" />
3436: <input type="button" value="$pre"
3437: 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();" />
3438: </form>
3439: ENDPREVIEW
3440: }
3441:
3442: sub modify_attachments {
3443: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3444: $attachmaxtext,$toolarge)=@_;
3445:
3446: my %lt = &Apache::lonlocal::texthash(
3447: 'subj' => 'Subject',
3448: 'chth' => 'Check the checkboxes for any you wish to remove.',
3449: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3450: 'adda' => 'Add a new attachment to this post',
3451: 'stch' => 'Save Changes',
3452: 'clic' => 'Add/remove attachments',
3453: );
3454: my $js = <<END;
3455: <script type="text/javascript">
3456: function setAction () {
3457: document.modattachments.action = document.modattachments.origpage.value;
3458: document.modattachments.submit();
3459: }
3460: </script>
3461: END
3462:
3463: # Breadcrumbs
3464: my $brcrum = [{'href' => '',
3465: 'text' => 'Discussion Post Attachments'}];
3466: my %parms=('only_body' => 1);
3467: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3468:
3469: my $start_page =
3470: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3471:
3472: my $orig_subject = &unescape($env{'form.subject'});
3473: my $subject=&clear_out_html($orig_subject);
3474: $subject=~s/\n/\<br \/\>/g;
3475: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3476: my $timestamp=$env{'form.timestamp'};
3477: my $numoldver=$env{'form.numoldver'};
3478:
3479: my $msg = '';
3480: my %attachments = ();
3481: my %currattach = ();
3482: if ($idx) {
3483: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3484: }
3485: &Apache::lonenc::check_encrypt(\$symb);
3486:
3487: my $end_page =
3488: &Apache::loncommon::end_page();
3489:
3490: $r->print(<<END);
3491: $start_page
3492: $toolarge
3493: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3494:
3495: <h1>$lt{'clic'}</h1>
3496: END
3497: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3498: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3499: $r->print('<b>'.$subject.'</b>');
3500: $r->print(&Apache::lonhtmlcommon::row_closure());
3501: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3502: $r->print('<input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" /> '.$attachmaxtext);
3503: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3504: $r->print(&Apache::lonhtmlcommon::row_closure());
3505: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3506: if ($idx) {
3507: if ($attachmenturls) {
3508: my @currold = keys(%currattach);
3509: if (@currold > 0) {
3510: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3511: foreach my $id (@currold) {
3512: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3513: $attachurl =~ m#/([^/]+)$#;
3514: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3515: }
3516: $r->print("<br />");
3517: }
3518: }
3519: }
3520: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3521: $r->print($lt{'chth'}.'<br />'."\n");
3522: foreach my $attach (@{$currnewattach}) {
3523: $attach =~ m#/([^/]+)$#;
3524: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3525: }
3526: }
3527: }
3528: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3529: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3530: $r->print(<<END);
3531: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3532: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3533: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3534: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3535: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3536: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3537: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3538: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3539: END
3540: foreach my $item (@{$currnewattach}) {
3541: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3542: }
3543: foreach my $item (@{$currdelold}) {
3544: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3545: }
3546: $r->print(<<END);
3547: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3548: </form>
3549: $end_page
3550: END
3551: return;
3552: }
3553:
3554: sub process_attachments {
3555: my ($currnewattach,$currdelold,$keepold) = @_;
3556:
3557: @{$currnewattach}=
3558: &Apache::loncommon::get_env_multiple('form.currnewattach');
3559: @{$currdelold}=
3560: &Apache::loncommon::get_env_multiple('form.deloldattach');
3561: if (exists($env{'form.delnewattach'})) {
3562: my @currdelnew =
3563: &Apache::loncommon::get_env_multiple('form.delnewattach');
3564: my @currnew = ();
3565: foreach my $newone (@{$currnewattach}) {
3566: my $delflag = 0;
3567: foreach my $item (@currdelnew) {
3568: if ($newone eq $item) {
3569: $delflag = 1;
3570: last;
3571: }
3572: }
3573: unless ($delflag) {
3574: push(@currnew, $newone);
3575: }
3576: }
3577: @{$currnewattach} = @currnew;
3578: }
3579: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3580: }
3581:
3582: sub generate_attachments_button {
3583: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3584: $numoldver,$mode,$blockblog) = @_;
3585: my $origpage = $ENV{'REQUEST_URI'};
3586: my $att=$attachnum.' '.&mt("attachments");
3587: my %lt = &Apache::lonlocal::texthash(
3588: 'clic' => 'Add/remove attachments',
3589: );
3590: my $response = (<<END);
3591: <br />
3592: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3593: <input type="button" value="$lt{'clic'}"
3594: 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);
3595: END
3596: if (!$blockblog) {
3597: $response .= 'setblogvalue();';
3598: }
3599: unless ($mode eq 'board') {
3600: $response .= 'javascript:anonchk();';
3601: }
3602: $response .= (<<ENDATTACH);
3603: this.form.submit();" />
3604: <input type="hidden" name="origpage" value="$origpage" />
3605: <input type="hidden" name="idx" value="$idx" />
3606: <input type="hidden" name="timestamp" value="$now" />
3607: <input type="hidden" name="subject" />
3608: <input type="hidden" name="comment" />
3609: <input type="hidden" name="blog" value="0" />
3610: <input type="hidden" name="discuss" value="0" />
3611: <input type="hidden" name="numoldver" value="$numoldver" />
3612: ENDATTACH
3613: if (defined($deloldattach)) {
3614: if (@{$deloldattach} > 0) {
3615: foreach my $delatt (@{$deloldattach}) {
3616: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3617: }
3618: }
3619: }
3620: if (defined($currnewattach)) {
3621: if (@{$currnewattach} > 0) {
3622: foreach my $attach (@{$currnewattach}) {
3623: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3624: }
3625: }
3626: }
3627: $response .= '</form>';
3628: return $response;
3629: }
3630:
3631: sub extract_attachments {
3632: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3633: %{$attachments}=();
3634: &get_post_attachments($attachments,$attachmenturls);
3635: foreach my $id (sort(keys(%{$attachments}))) {
3636: if (exists($$attachments{$id}{$numoldver})) {
3637: if (defined($currdelold)) {
3638: if (@{$currdelold} > 0) {
3639: unless (grep/^$id$/,@{$currdelold}) {
3640: $$currattach{$id} = $$attachments{$id}{$numoldver};
3641: }
3642: } else {
3643: $$currattach{$id} = $$attachments{$id}{$numoldver};
3644: }
3645: } else {
3646: $$currattach{$id} = $$attachments{$id}{$numoldver};
3647: }
3648: }
3649: }
3650: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3651: if (@attached == 1) {
3652: my $id = $attached[0];
3653: my $attachurl;
3654: if ($attachmenturls =~ m/^<attachment id="0">/) {
3655: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3656: } else {
3657: $attachurl = $$attachments{$id}{'filename'};
3658: }
3659: $attachurl=~m|/([^/]+)$|;
3660: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3661: $1.'</tt></a><br />';
3662: &Apache::lonnet::allowuploaded('/adm/feedback',
3663: $attachurl);
3664: } elsif (@attached > 1) {
3665: $$message.='<ol>';
3666: foreach my $attach (@attached) {
3667: my $id = $attach;
3668: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3669: my ($fname)
3670: =($attachurl=~m|/([^/]+)$|);
3671: $$message .= '<li><a href="'.$attachurl.
3672: '"><tt>'.
3673: $fname.'</tt></a></li>';
3674: &Apache::lonnet::allowuploaded('/adm/feedback',
3675: $attachurl);
3676: }
3677: $$message .= '</ol>';
3678: }
3679: }
3680:
3681: sub construct_attachmenturl {
3682: my ($currnewattach,$keepold,$symb,$idx)=@_;
3683: my $oldattachmenturl;
3684: my $newattachmenturl;
3685: my $startnum = 0;
3686: my $currver = 0;
3687: if (($env{'form.editdisc'}) && ($idx)) {
3688: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3689: $env{'course.'.$env{'request.course.id'}.'.domain'},
3690: $env{'course.'.$env{'request.course.id'}.'.num'});
3691: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3692: if ($contrib{$idx.':history'}) {
3693: if ($contrib{$idx.':history'} =~ /:/) {
3694: my @oldversions = split(/:/,$contrib{$idx.':history'});
3695: $currver = 1 + scalar(@oldversions);
3696: } else {
3697: $currver = 2;
3698: }
3699: } else {
3700: $currver = 1;
3701: }
3702: if ($oldattachmenturl) {
3703: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3704: my %attachments = ();
3705: my $prevver = $currver-1;
3706: &get_post_attachments(\%attachments,$oldattachmenturl);
3707: my $numattach = scalar(keys(%attachments));
3708: $startnum += $numattach;
3709: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3710: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3711: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3712: unless ($item eq 'filename') {
3713: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3714: }
3715: }
3716: if (grep/^$num$/,@{$keepold}) {
3717: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3718: }
3719: $newattachmenturl .= '</attachment>';
3720: }
3721: } else {
3722: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3723: unless (grep/^0$/,@{$keepold}) {
3724: $newattachmenturl .= '<post id="1">n</post>';
3725: }
3726: $newattachmenturl .= '</attachment>';
3727: $startnum ++;
3728: }
3729: }
3730: }
3731: for (my $i=0; $i<@{$currnewattach}; $i++) {
3732: my $attachnum = $startnum + $i;
3733: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3734: }
3735: return $newattachmenturl;
3736: }
3737:
3738: sub add_blog_checkbox {
3739: my ($crstype) = @_;
3740: my $checkstatus;
3741: if ($env{'form.blog'}) {
3742: $checkstatus = 'checked="checked"';
3743: }
3744: my $output = '
3745: <script type="text/javascript">
3746: function setblogvalue() {
3747: if (document.mailform.blog.checked) {
3748: document.attachment.blog.value = 1;
3749: } else {
3750: document.attachment.blog.value = 0;
3751: }
3752: }
3753: </script><br />
3754: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3755: if ($crstype eq 'Community') {
3756: $output .= &mt('Add to my public community blog');
3757: } else {
3758: $output .= &mt('Add to my public course blog');
3759: }
3760: $output .= '</label><br />'."\n";
3761: return $output;
3762: }
3763:
3764: sub has_discussion {
3765: my $resourcesref = shift;
3766: my $navmap = Apache::lonnavmaps::navmap->new();
3767: if (defined($navmap)) {
3768: my @allres=$navmap->retrieveResources();
3769: foreach my $resource (@allres) {
3770: if ($resource->hasDiscussion()) {
3771: my $ressymb = $resource->wrap_symb();
3772: if (ref($resourcesref) eq 'ARRAY') {
3773: push(@{$resourcesref}, $ressymb);
3774: }
3775: }
3776: }
3777: } else {
3778: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3779: }
3780: return;
3781: }
3782:
3783: sub sort_filter_names {
3784: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3785: if (ref($sort_types) eq 'HASH') {
3786: %{$sort_types} = (
3787: ascdate => 'Date order - oldest first',
3788: descdate => 'Date order - newest first',
3789: thread => 'Threaded',
3790: subject => 'By subject',
3791: username => 'By domain and username',
3792: lastfirst => 'By last name, first name'
3793: );
3794: }
3795: my @courseroles = qw(st in ta ep ad);
3796: if ($crstype eq 'Community') {
3797: push(@courseroles,'co');
3798: } else {
3799: push(@courseroles,'cc');
3800: }
3801: if (ref($role_types) eq 'HASH') {
3802: foreach my $role (@courseroles) {
3803: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3804: }
3805: $role_types->{'all'} = 'All roles';
3806: $role_types->{'cr'} = 'Custom role';
3807: }
3808: if (ref($status_types) eq 'HASH') {
3809: %{$status_types} = (
3810: all => 'Roles of any status',
3811: Active => 'Only active roles',
3812: Expired => 'Only past roles',
3813: Future => 'Only future roles',
3814: );
3815: }
3816: }
3817:
3818: sub handler {
3819: my $r = shift;
3820: if ($r->header_only) {
3821: &Apache::loncommon::content_type($r,'text/html');
3822: $r->send_http_header;
3823: return OK;
3824: }
3825:
3826: # --------------------------- Get query string for limited number of parameters
3827:
3828: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3829: ['like','unlike','modal','hide','unhide','deldisc','undeleteall','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']);
3830: my $group = $env{'form.group'};
3831: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3832: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3833:
3834: my %attachmax = (
3835: text => &mt('(128 KB max size)'),
3836: num => 131072,
3837: );
3838: if ($env{'form.editdisc'}) {
3839: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
3840: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3841: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3842: my $feedurl=&Apache::lonnet::clutter($url);
3843: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3844: undef,undef,undef,$group);
3845: return OK;
3846: }
3847: }
3848: if ($env{'form.discsymb'}) {
3849: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3850: my $readkey = $symb.'_read';
3851: my $chgcount = 0;
3852: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3853: foreach my $key (keys(%env)) {
3854: if ($key =~ m/^form\.postunread_(\d+)/) {
3855: if ($readinghash{$readkey} =~ /\.$1\./) {
3856: $readinghash{$readkey} =~ s/\.$1\.//;
3857: $chgcount ++;
3858: }
3859: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3860: unless ($readinghash{$readkey} =~ /\.$1\./) {
3861: $readinghash{$readkey} .= '.'.$1.'.';
3862: $chgcount ++;
3863: }
3864: }
3865: }
3866: if ($chgcount > 0) {
3867: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3868: \%readinghash,$env{'user.domain'},$env{'user.name'});
3869: }
3870: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3871: '0','0','','',$env{'form.previous'},'','','',
3872: undef,undef,undef,$group);
3873: return OK;
3874: }
3875: if ($env{'form.allversions'}) {
3876: &Apache::loncommon::content_type($r,'text/html');
3877: &Apache::loncommon::no_cache($r);
3878: $r->send_http_header;
3879:
3880: # Breadcrumbs
3881: my $brcrum = [{'href' => '',
3882: 'text' => 'Discussion Post Versions'}];
3883:
3884: my %parms=();
3885: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3886:
3887: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
3888:
3889: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3890: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
3891: my $ressymb = &wrap_symb($symb);
3892: my $seeid;
3893: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
3894: $seeid = 1;
3895: }
3896: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
3897: if ($idx > 0) {
3898: my %messages = ();
3899: my %subjects = ();
3900: my %attachmsgs = ();
3901: my %allattachments = ();
3902: my %imsfiles = ();
3903: my ($screenname,$plainname,$showaboutme);
3904: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3905: $cdom,$cnum);
3906: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3907: }
3908: $r->print(&Apache::loncommon::end_page());
3909: return OK;
3910: }
3911: if ($env{'form.posterlist'}) {
3912: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3913: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3914: $env{'form.sortposts'});
3915: return OK;
3916: }
3917: if ($env{'form.userpick'}) {
3918: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3919: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3920: my $numpicks = @posters;
3921: my %discinfo;
3922: $discinfo{$symb.'_userpick'} = join('&',@posters);
3923: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3924: \%discinfo,$env{'user.domain'},$env{'user.name'});
3925: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3926: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3927: '',$numpicks,$group);
3928: return OK;
3929: }
3930: if ($env{'form.applysort'}) {
3931: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3932: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3933: '',$env{'form.previous'},$env{'form.sortposts'},
3934: $env{'form.rolefilter'},$env{'form.statusfilter'},
3935: $env{'form.sectionpick'},$env{'form.grouppick'},
3936: undef,$group);
3937: return OK;
3938: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3939: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3940: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3941: return OK;
3942: } elsif ($env{'form.navtime'}) {
3943: my %discinfo = ();
3944: my @resources = ();
3945: if (defined($env{'form.navmaps'})) {
3946: if ($env{'form.navmaps'} =~ /:/) {
3947: @resources = split(/:/,$env{'form.navmaps'});
3948: } else {
3949: @resources = ("$env{'form.navmaps'}");
3950: }
3951: } else {
3952: &has_discussion(\@resources);
3953: }
3954: my $numitems = @resources;
3955: my $feedurl = '/adm/navmaps';
3956: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3957: my %lt = &Apache::lonlocal::texthash(
3958: 'mnpa' => 'Marked "New" posts as read in a total of',
3959: 'robb' => 'resources/bulletin boards.',
3960: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3961: );
3962: foreach my $res (@resources) {
3963: my $ressymb=$res;
3964: &Apache::lonenc::check_decrypt(\$ressymb);
3965: my $lastkey = $ressymb.'_lastread';
3966: $discinfo{$lastkey} = $env{'form.navtime'};
3967: }
3968: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3969: if ($numitems > 0) {
3970: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3971: \%discinfo,$env{'user.domain'},$env{'user.name'});
3972: } else {
3973: $textline = "<b>$lt{'twnp'}</b>";
3974: }
3975: &Apache::loncommon::content_type($r,'text/html');
3976: $r->send_http_header;
3977: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3978: my %onload;
3979:
3980: my $start_page=
3981: &Apache::loncommon::start_page('New posts marked as read',undef,
3982: {'redirect' => [2,$feedurl],
3983: 'only_body' => 1,
3984: 'add_entries' => \%onload});
3985: my $end_page = &Apache::loncommon::end_page();
3986: $r->print (<<ENDREDIR);
3987: $start_page
3988: <img align="right" src="$logo" />
3989: $textline
3990: <form name="reldt" action="$feedurl" target="loncapaclient">
3991: </form>
3992: <br />
3993: $end_page
3994: ENDREDIR
3995: return OK;
3996: } elsif ($env{'form.modifydisp'}) {
3997: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3998: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3999: split(/_/,$env{'form.changes'});
4000: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4001: $dispchgB,$markchg,$toggchg,$feedurl);
4002: return OK;
4003: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4004: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4005: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4006: $env{'form.toggon'} || $env{'form.markread'}) {
4007: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4008: my %discinfo;
4009: # ------------------------ Modify setting for read/unread toggle for each post
4010: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4011: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4012: # --------- Modify setting for identification of 'NEW' posts in this discussion
4013: if ($env{'form.markondisp'}) {
4014: $discinfo{$symb.'_lastread'} = time;
4015: $discinfo{$symb.'_markondisp'} = 1;
4016: }
4017: if ($env{'form.markonread'}) {
4018: if ( $env{'form.previous'} > 0 ) {
4019: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4020: }
4021: $discinfo{$symb.'_markondisp'} = 0;
4022: }
4023: # --------------------------------- Modify display setting for this discussion
4024: if ($env{'form.allposts'}) {
4025: $discinfo{$symb.'_showonlyunread'} = 0;
4026: $discinfo{$symb.'_showonlyunmark'} = 0;
4027: }
4028: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4029: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4030: # ----------------------------------------------------- Mark new posts not NEW
4031: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4032: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4033: \%discinfo,$env{'user.domain'},$env{'user.name'});
4034: my $previous=$env{'form.previous'};
4035: if ($env{'form.markondisp'}) { $previous=undef; }
4036: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4037: '0','0','','',$previous,'','','','','','',$group);
4038: return OK;
4039: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4040: # ----------------------------------------------------------------- Hide/unhide
4041: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4042: my ($symb,$idx)=split(/\:\:\:/,$entry);
4043: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4044: my $ressymb = &wrap_symb($symb);
4045:
4046: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4047: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4048: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4049: '0','0','','',$env{'form.previous'},'','','','',
4050: undef,undef,$group,);
4051: return OK;
4052: }
4053:
4054: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4055: $cdom,$cnum);
4056:
4057: my $currenthidden=$contrib{'hidden'};
4058: my $currentstudenthidden=$contrib{'studenthidden'};
4059:
4060: if ($env{'form.hide'}) {
4061: $currenthidden.='.'.$idx.'.';
4062: unless ($seehidden) {
4063: $currentstudenthidden.='.'.$idx.'.';
4064: }
4065: } else {
4066: $currenthidden=~s/\.$idx\.//g;
4067: }
4068: my %newhash=('hidden' => $currenthidden);
4069: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4070: $newhash{'studenthidden'} = $currentstudenthidden;
4071: }
4072: if ($env{'form.hide'}) {
4073: my $changelast = 0;
4074: my $newlast;
4075: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4076: if ($changelast) {
4077: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4078: $cdom,$cnum);
4079: }
4080: }
4081: my $result;
4082: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4083: $cdom,$cnum) eq 'ok') {
4084: my $prefix=$symb.':'.$idx.':';
4085: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4086: '^'.$prefix);
4087: my ($totallikes,$totalunlikes);
4088: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4089: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4090: }
4091: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4092: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4093: }
4094: if ($totallikes || $totalunlikes) {
4095: my ($chglikes,$chgunlikes,$context);
4096: if ($env{'form.hide'}) {
4097: $chglikes = -1 * $totallikes;
4098: $chgunlikes = -1 * $totalunlikes;
4099: $context = 'hide';
4100: } else {
4101: $chglikes = $totallikes;
4102: $chgunlikes = $totalunlikes;
4103: $context = 'unhide';
4104: }
4105: &storediscussionlikes($chglikes,$chgunlikes,
4106: $contrib{$idx.':sendername'},
4107: $contrib{$idx.':senderdomain'},
4108: $env{'request.course.id'},
4109: $context);
4110:
4111: }
4112: $result = &mt('Changed discussion status');
4113: } else {
4114: $result = &mt('Discussion status unchanged');
4115: }
4116: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4117: $env{'form.previous'},undef,undef,undef,
4118: undef,undef,undef,$group);
4119: return OK;
4120: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4121: # ----------------------------------------------------------------- Like/unlike
4122: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4123: my ($symb,$idx)=split(/\:\:\:/,$entry);
4124: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4125: my $result;
4126: if ($idx > 0) {
4127: my $realsymb = &get_realsymb($symb);
4128: my $status='OPEN';
4129: if ($Apache::lonhomework::parsing_a_problem ||
4130: $Apache::lonhomework::parsing_a_task) {
4131: $status=$Apache::inputtags::status[-1];
4132: }
4133: if (&discussion_vote_available($status,$realsymb)) {
4134: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4135: $cdom,$cnum);
4136: my $ownpost;
4137: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4138: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4139: $ownpost = 1;
4140: }
4141: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4142: $result = &mt('Vote not registered.').' ';
4143: }
4144: if ($ownpost) {
4145: $result .= &mt('No voting for your own posts.');
4146: } elsif ($contrib{$idx.':hidden'}) {
4147: $result .= &mt('No voting for hidden posts.');
4148: } elsif ($contrib{$idx.':deleted'}) {
4149: $result .= &mt('No voting for deleted posts.');
4150: } else {
4151: #
4152: # Likes and unlikes are in db-file "disclikes" of the course
4153: # The prefix is the $symb to identify the resource discussion,
4154: # and the $idx to identify the entry
4155: #
4156: my $prefix=$symb.':'.$idx.':';
4157: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4158: '^'.$prefix);
4159:
4160: # Get current like or unlike status for the $idx for this user.
4161: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4162: my ($userlikes,$userunlikes);
4163: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4164: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4165: $userlikes = 1;
4166: }
4167: }
4168: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4169: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4170: $userunlikes = 1;
4171: }
4172: }
4173: # Get the current "likes" count
4174: my $likescount=$likes{$prefix.'likes'};
4175: # Find out if they already voted
4176: # Users cannot like a post twice, or unlike it twice.
4177: # They can change their mind, though.
4178: my $alreadyflag=0;
4179: my $votetype;
4180: if ($env{'form.like'}) {
4181: if ($userlikes) {
4182: $alreadyflag=1;
4183: } elsif ($userunlikes) {
4184: delete($likes{$prefix.'unlikers'}{$thisuser});
4185: $votetype = 'switch';
4186: $likescount++;
4187: } else {
4188: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4189: $likes{$prefix.'likers'}{$thisuser} = 1;
4190: } else {
4191: $likes{$prefix.'likers'} = {$thisuser => 1};
4192: }
4193: $likescount++;
4194: }
4195: } else {
4196: if ($userunlikes) {
4197: $alreadyflag=1;
4198: } elsif ($userlikes) {
4199: delete($likes{$prefix.'likers'}{$thisuser});
4200: $votetype = 'switch';
4201: $likescount--;
4202: } else {
4203: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4204: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4205: } else {
4206: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4207: }
4208: $likescount--;
4209: }
4210: }
4211: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4212: if ($alreadyflag) {
4213: if ($env{'form.like'}) {
4214: $result= &mt("'Like' already registered");
4215: } else {
4216: $result= &mt("'Unlike' already registered");
4217: }
4218: } else {
4219: my %newhash=($prefix.'likes' => $likescount,
4220: $prefix.'likers' => $likes{$prefix.'likers'},
4221: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4222: # Store data in db-file "disclikes"
4223: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4224: # Also store with the person who posted the liked/unliked entry
4225: my ($chglike,$chgunlike);
4226: if ($env{'form.like'}) {
4227: if ($votetype eq 'switch') {
4228: $chglike = 0;
4229: $chgunlike = -1;
4230: } else {
4231: $chglike = 1;
4232: $chgunlike = 0;
4233: }
4234: &storediscussionlikes($chglike,$chgunlike,
4235: $contrib{$idx.':sendername'},
4236: $contrib{$idx.':senderdomain'},
4237: $env{'request.course.id'},'like');
4238: $result=&mt("Registered 'Like'");
4239: } else {
4240: if ($votetype eq 'switch') {
4241: $chglike = -1;
4242: $chgunlike = 0;
4243: } else {
4244: $chglike = 0;
4245: $chgunlike = 1;
4246: }
4247: &storediscussionlikes($chglike,$chgunlike,
4248: $contrib{$idx.':sendername'},
4249: $contrib{$idx.':senderdomain'},
4250: $env{'request.course.id'},'unlike');
4251: $result=&mt("Registered 'Unlike'");
4252: }
4253: } else {
4254: # Oops, something went wrong
4255: $result=&mt("Failed to register vote");
4256: }
4257: }
4258: }
4259: } else {
4260: $result=&mt('Voting unavailable for this discussion');
4261: }
4262: } else {
4263: $result=&mt('Invalid post number');
4264: }
4265: &redirect_back($r,$feedurl,$result.'<br />',
4266: '0','0','','',$env{'form.previous'},undef,undef,undef,
4267: undef,undef,undef,$group);
4268: return OK;
4269: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4270: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4271: if ($env{'form.cmd'} eq 'threadedoff') {
4272: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4273: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4274: &Apache::lonnet::del('environment',['threadeddiscussion']);
4275: &Apache::lonnet::delenv('environment.threadeddiscussion');
4276: } else {
4277: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4278: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4279: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4280: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4281: }
4282: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4283: '0','0','','',$env{'form.previous'},undef,undef,undef,
4284: undef,undef,undef,$group);
4285: return OK;
4286: } elsif ($env{'form.deldisc'}) {
4287: # --------------------------------------------------------------- Hide for good
4288: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4289: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4290: my $ressymb=&wrap_symb($symb);
4291:
4292: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4293: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4294: '0','0','','',$env{'form.previous'},'','','','',
4295: undef,undef,$group);
4296: return OK;
4297: }
4298: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4299: $cdom,$cnum);
4300: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4301: if ($changelast) {
4302: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4303: $cdom,$cnum);
4304: }
4305: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4306:
4307: my $result;
4308: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4309: $cdom,$cnum) eq 'ok') {
4310: $result = &mt('Changed discussion status');
4311: my $prefix=$symb.':'.$idx.':';
4312: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4313: '^'.$prefix);
4314: my ($totallikes,$totalunlikes);
4315: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4316: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4317: }
4318: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4319: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4320: }
4321: if ($totallikes || $totalunlikes) {
4322: my $chglikes = -1 * $totallikes;
4323: my $chgunlikes = -1 * $totalunlikes;
4324: &storediscussionlikes($chglikes,$chgunlikes,
4325: $contrib{$idx.':sendername'},
4326: $contrib{$idx.':senderdomain'},
4327: $env{'request.course.id'},
4328: 'delete');
4329: }
4330: } else {
4331: $result = &mt('Discussion status unchanged');
4332: }
4333: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4334: $env{'form.previous'},undef,undef,undef,
4335: undef,undef,undef,$group);
4336: return OK;
4337: } elsif ($env{'form.preview'}) {
4338: # -------------------------------------------------------- User wants a preview
4339: &show_preview($r);
4340: return OK;
4341: } elsif ($env{'form.attach'}) {
4342: # -------------------------------------------------------- Work on attachments
4343: &Apache::loncommon::content_type($r,'text/html');
4344: $r->send_http_header;
4345: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4346: my (@currnewattach,@currdelold,@keepold,$toolarge);
4347: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4348: if (exists($env{'form.addnewattach.filename'})) {
4349: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4350: my $subdir = 'feedback/'.$env{'form.timestamp'};
4351: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4352: push(@currnewattach, $newattachment);
4353: } else {
4354: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4355: }
4356: }
4357: my $attachmenturls;
4358: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4359: my $idx = $env{'form.idx'};
4360: if ($idx) {
4361: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4362: $cdom,$cnum);
4363: $attachmenturls = $contrib{$idx.':attachmenturl'};
4364: }
4365: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4366: $attachmenturls,$attachmax{'text'},$toolarge);
4367: return OK;
4368: } elsif ($env{'form.export'}) {
4369: &Apache::loncommon::content_type($r,'text/html');
4370: $r->send_http_header;
4371: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4372: my $mode='board';
4373: my $status='OPEN';
4374: my $previous=$env{'form.previous'};
4375: if ($feedurl =~ /$LONCAPA::assess_re/) {
4376: $mode='problem';
4377: $status=$Apache::inputtags::status[-1];
4378: }
4379:
4380: my $discussion = &list_discussion($mode,$status,$symb);
4381: my $start_page =
4382: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4383: my $end_page =
4384: &Apache::loncommon::end_page();
4385: $r->print($start_page.$discussion.$end_page);
4386: return OK;
4387:
4388: } elsif ($env{'form.undeleteall'}) {
4389: &Apache::loncommon::content_type($r,'text/html');
4390: $r->send_http_header;
4391: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4392: my $ressymb=&wrap_symb($symb);
4393: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4394: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4395: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4396: $cdom,$cnum);
4397: $contrib{'deleted'} =~ s/^\.//;
4398: $contrib{'deleted'} =~ s/\.$//;
4399: if ($contrib{'deleted'} ne '') {
4400: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4401: $cdom,$cnum) eq 'ok') {
4402: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4403: my @ids = split(/\.\./,$contrib{'deleted'});
4404: my (%chglikes,%chgunlikes);
4405: foreach my $idx (@ids) {
4406: my $uname = $contrib{$idx.':sendername'};
4407: my $udom = $contrib{$idx.':senderdomain'};
4408: my ($totallikes,$totalunlikes);
4409: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4410: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4411: }
4412: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4413: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4414: }
4415: if ($totallikes || $totalunlikes) {
4416: $chglikes{$uname.':'.$udom} += $totallikes;
4417: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4418: }
4419: }
4420: foreach my $user (keys(%chglikes)) {
4421: my ($uname,$udom) = split(/:/,$user);
4422: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4423: $uname,$udom,$env{'request.course.id'},
4424: 'undelete');
4425: }
4426: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")));
4427: } else {
4428: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1));
4429: }
4430: } else {
4431: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1));
4432: }
4433: $r->print("<br /><a href='$feedurl'>".&mt("Return and reload")."</a>");
4434: }
4435: $r->print(&Apache::loncommon::end_page());
4436: return OK;
4437: } else {
4438: # ------------------------------------------------------------- Normal feedback
4439: my $feedurl=$env{'form.postdata'};
4440: $feedurl=~s/^https?\:\/\///;
4441: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4442: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4443: $feedurl=~s/\?.+$//;
4444:
4445: my $symb;
4446: if ($env{'form.replydisc'}) {
4447: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4448: } elsif ($env{'form.editdisc'}) {
4449: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4450: } elsif ($env{'form.origpage'}) {
4451: $symb="";
4452: } elsif ($env{'form.sendmessageonly'}) {
4453: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4454: } else {
4455: $symb=&Apache::lonnet::symbread($feedurl);
4456: }
4457: unless ($symb) {
4458: $symb=$env{'form.symb'};
4459: }
4460: if (defined($symb)) {
4461: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4462: } else {
4463: # backward compatibility (bulletin boards used to be 'wrapped')
4464: &Apache::lonenc::check_decrypt(\$feedurl);
4465: &dewrapper(\$feedurl);
4466: }
4467: my $goahead=1;
4468: if ($feedurl=~/$LONCAPA::assess_re/) {
4469: unless ($symb) { $goahead=0; }
4470: }
4471: if (!$goahead) {
4472: # Ambiguous Problem Resource
4473: $r->internal_redirect('/adm/ambiguous');
4474: return OK;
4475: }
4476: # Go ahead with feedback, no ambiguous reference
4477: unless (
4478: (
4479: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4480: )
4481: ||
4482: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4483: ||
4484: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4485: ) {
4486: &Apache::loncommon::content_type($r,'text/html');
4487: $r->send_http_header;
4488: # Unable to give feedback
4489: &Apache::lonenc::check_encrypt(\$feedurl);
4490: &no_redirect_back($r,$feedurl);
4491: return OK;
4492: }
4493: # --------------------------------------------------- Print login screen header
4494: unless ($env{'form.sendit'}) {
4495: &Apache::lonenc::check_encrypt(\$feedurl);
4496: &Apache::loncommon::content_type($r,'text/html');
4497: $r->send_http_header;
4498: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4499: my ($blocked,$blocktext) =
4500: &Apache::loncommon::blocking_status('boards');
4501: if ($blocked) {
4502: $r->print(&blocked_reply_or_edit($blocktext));
4503: return OK;
4504: }
4505: }
4506: my $options=&screen_header($feedurl,$symb,$group);
4507: if ($options) {
4508: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4509: } else {
4510: &fail_redirect($r,$feedurl);
4511: }
4512: return OK;
4513: }
4514:
4515: # Get previous user input
4516: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4517: $symb,$env{'user.name'},$env{'user.domain'},
4518: $env{'request.course.id'});
4519:
4520: # Get output from resource
4521: &Apache::lonenc::check_encrypt(\$feedurl);
4522: my $usersaw=&resource_output($feedurl);
4523:
4524: # Get resource answer (need to allow student to view grades for this to work)
4525: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4526: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4527: my $useranswer=
4528: &Apache::loncommon::get_student_answers(
4529: $usersymb,$env{'user.name'},$env{'user.domain'},
4530: $env{'request.course.id'});
4531: &Apache::lonnet::delenv('allowed.vgr');
4532: # Get attachments, if any, and not too large
4533: my $attachmenturl='';
4534: my $toolarge='';
4535: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4536: ($env{'form.replydisc'})) {
4537: my ($symb,$idx);
4538: if ($env{'form.replydisc'}) {
4539: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4540: } elsif ($env{'form.editdisc'}) {
4541: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4542: } elsif ($env{'form.origpage'}) {
4543: $symb = $env{'form.symb'};
4544: }
4545: &Apache::lonenc::check_decrypt(\$symb);
4546: my @currnewattach = ();
4547: my @deloldattach = ();
4548: my @keepold = ();
4549: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4550: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4551: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4552: } elsif ($env{'form.attachment.filename'}) {
4553: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4554: my $now = time;
4555: my $subdir = 'feedback/'.$now;
4556: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4557: } else {
4558: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4559: }
4560: }
4561: # Filter HTML out of message (could be nasty)
4562: my $override;
4563: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4564: $override = 1;
4565: }
4566: my $message=&clear_out_html($env{'form.comment'},$override);
4567:
4568: # Assemble email
4569: my ($email,$citations)=&assemble_email($message,$prevattempts,
4570: $usersaw,$useranswer);
4571:
4572: # Who gets this?
4573: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4574:
4575: # Actually send mail
4576: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4577: $feedurl,$email,$citations,
4578: $attachmenturl,$usersymb,%to);
4579:
4580: # Discussion? Store that.
4581: my $numpost=0;
4582: if ( ($env{'form.discuss'} ne ''
4583: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4584: || $env{'form.anondiscuss'} ne '') {
4585: my $subject = &clear_out_html($env{'form.subject'});
4586: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4587: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4588: $subject,$group);
4589: $numpost++;
4590: }
4591:
4592: # Add to blog?
4593:
4594: my $blog='';
4595: if ($env{'form.blog'}) {
4596: my $subject = &clear_out_html($env{'form.subject'});
4597: $status.=&Apache::lonrss::addentry($env{'user.name'},
4598: $env{'user.domain'},
4599: 'CourseBlog_'.$env{'request.course.id'},
4600: $subject,$message,$feedurl,'public');
4601: if (&Apache::loncommon::course_type() eq 'Community') {
4602: $blog='<br />'.&mt('Added to my community blog').'<br />';
4603: } else {
4604: $blog='<br />'.&mt('Added to my course blog').'<br />';
4605: }
4606: }
4607:
4608: # Receipt screen and redirect back to where came from
4609: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4610: }
4611: return OK;
4612: }
4613:
4614: sub blocked_reply_or_edit {
4615: my ($blocktext) = @_;
4616: return
4617: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4618: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4619: &mt('Back to previous page').
4620: &Apache::loncommon::end_page();
4621: }
4622:
4623: sub wrap_symb {
4624: my ($ressymb)=@_;
4625: if ($ressymb =~ /bulletin___\d+___/) {
4626: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4627: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4628: }
4629: }
4630: return $ressymb;
4631: }
4632:
4633: sub dewrapper {
4634: my ($feedurl)=@_;
4635: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4636: $$feedurl=~s|^/adm/wrapper||;
4637: }
4638: }
4639:
4640: sub get_feedurl {
4641: my ($symb)=@_;
4642: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4643: my $feedurl = &Apache::lonnet::clutter($url);
4644: &dewrapper(\$feedurl);
4645: return $feedurl;
4646: }
4647:
4648: sub get_feedurl_and_clean_symb {
4649: my ($symb)=@_;
4650: &Apache::lonenc::check_decrypt(\$symb);
4651: # backward compatibility (bulletin boards used to be 'wrapped')
4652: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4653: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4654: }
4655: my $feedurl = &get_feedurl($symb);
4656: return ($symb,$feedurl);
4657: }
4658:
4659: sub editing_allowed {
4660: my ($postid,$group) = @_;
4661: $postid = &unescape($postid);
4662: my $can_edit = 0;
4663: if ($group ne '') {
4664: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4665: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4666: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4667: if (&check_group_priv($group,'egp') eq 'ok') {
4668: $can_edit = 1;
4669: }
4670: return $can_edit;
4671: }
4672: }
4673: my $cid = $env{'request.course.id'};
4674: my $role = (split(/\./,$env{'request.role'}))[0];
4675: my $section = $env{'request.course.sec'};
4676: my $allow_editing_config =
4677: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4678: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4679: $can_edit = 1;
4680: } else {
4681: foreach my $editor (split(/,/,$allow_editing_config)) {
4682: my ($editor_role,$editor_sec) = split(/:/,$editor);
4683: if ($editor_role eq $role
4684: && defined($editor_sec)
4685: && defined($section)
4686: && $editor_sec eq $section) {
4687: $can_edit = 1;
4688: last;
4689: }
4690: if ($editor_role eq $role
4691: && !defined($editor_sec)) {
4692: $can_edit = 1;
4693: }
4694: }
4695: }
4696: return $can_edit;
4697: }
4698:
4699: sub check_group_priv {
4700: my ($group,$grp_priv) = @_;
4701: foreach my $priv ('mdg','vcg') {
4702: my $checkcourse = $env{'request.course.id'}.
4703: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4704: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4705: return 'ok';
4706: }
4707: }
4708: if ($grp_priv && $group ne '') {
4709: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4710: return 'ok';
4711: }
4712: }
4713: return '';
4714: }
4715:
4716: sub group_args {
4717: my ($group) = @_;
4718: if ($group eq '') { return ''; }
4719: my $extra_args = '&group='.$group;
4720: if (exists($env{'form.ref'})) {
4721: $extra_args .= '&ref='.$env{'form.ref'};
4722: }
4723: return $extra_args;
4724: }
4725:
4726: sub get_resource_title {
4727: my ($symb,$feedurl) = @_;
4728: my ($restitle,$plainurl);
4729: if (defined($symb)) {
4730: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4731: $restitle = &Apache::lonnet::gettitle($plain_symb);
4732: }
4733: if (defined($feedurl)) {
4734: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4735: }
4736: if (!defined($restitle)) {
4737: if (defined($feedurl)) {
4738: $restitle = &Apache::lonnet::gettitle($plainurl);
4739: }
4740: }
4741: if ($plainurl ne $feedurl) {
4742: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4743: if ($plain_filename eq $restitle) {
4744: $restitle = &mt('Untitled resource');
4745: }
4746: }
4747: if ($restitle eq '') {
4748: $restitle = &mt('Untitled resource');
4749: }
4750: return $restitle;
4751: }
4752:
4753: 1;
4754: __END__
4755:
4756:
4757: =pod
4758:
4759: =head1 NAME
4760:
4761: Apache::lonfeedback.pm
4762:
4763: =head1 SYNOPSIS
4764:
4765: Handles feedback from students to instructors and system administrators.
4766:
4767: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4768:
4769: Used by lonmsg.pm.
4770:
4771: This is part of the LearningOnline Network with CAPA project
4772: described at http://www.lon-capa.org.
4773:
4774: =head1 OVERVIEW
4775:
4776: None
4777:
4778: =head1 SUBROUTINES
4779:
4780: =over
4781:
4782: =item discussion_open()
4783:
4784: =item discussion_visible()
4785:
4786: =item discussion_vote_available()
4787:
4788: =item get_realsymb()
4789:
4790: =item list_discussion()
4791:
4792: =item can_see_hidden()
4793:
4794: =item discussion_link()
4795:
4796: =item send_feedback_link()
4797:
4798: =item send_message_link()
4799:
4800: =item action_links_bar()
4801:
4802: =item postingform_display()
4803:
4804: =item build_posting_display
4805:
4806: =item filter_regexp()
4807:
4808: =item get_post_contents()
4809:
4810: =item replicate_attachments()
4811:
4812: =item mail_screen()
4813:
4814: =item print_display_options()
4815:
4816: =item print_sortfilter_options()
4817:
4818: =item print_showposters()
4819:
4820: =item get_post_versions()
4821:
4822: =item get_post_attachments()
4823:
4824: =item fail_redirect()
4825:
4826: =item redirect_back()
4827:
4828: =item no_redirect_back()
4829:
4830: =item screen_header()
4831:
4832: =item resource_output()
4833:
4834: =item clear_out_html()
4835:
4836: =item assemble_email()
4837:
4838: =item feedback_available()
4839:
4840: =item send_msg()
4841:
4842: =item adddiscuss()
4843:
4844: =item get_discussion_info()
4845:
4846: =item show_preview()
4847:
4848: =item newline_to_br()
4849:
4850: =item tidy_html()
4851:
4852: =item generate_preview_button()
4853:
4854: =item modify_attachments()
4855:
4856: =item process_attachments()
4857:
4858: =item generate_attachments_button()
4859:
4860: =item extract_attachments()
4861:
4862: =item construct_attachmenturl()
4863:
4864: =item add_blog_checkbox()
4865:
4866: =item has_discussion()
4867:
4868: =item sort_filter_names()
4869:
4870: =item handler()
4871:
4872: =item blocked_reply_or_edit()
4873:
4874: =item wrap_symb()
4875:
4876: =item dewrapper()
4877:
4878: =item get_feedurl()
4879:
4880: =item get_feedurl_and_clean_symb()
4881:
4882: =item editing_allowed()
4883:
4884: =item check_group_priv()
4885:
4886: =item group_args()
4887:
4888: =item get_resource_title()
4889:
4890: =back
4891:
4892: =cut
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