1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.353 2012/04/29 22:55:20 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: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1067: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
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: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($quote).'</blockquote>';
1939: }
1940: my $header='';
1941: unless ($env{'form.modal'}) {
1942: $header="<h2><tt>$restitle</tt></h2>";
1943: }
1944: $r->print(<<END);
1945: $start_page
1946: <h1>$lt{'myqu'}</h1>
1947: $header
1948: <form action="/adm/feedback" method="post" name="mailform"
1949: enctype="multipart/form-data">
1950: $prevtag
1951: <input type="hidden" name="postdata" value="$feedurl" />
1952: <input type="hidden" name="modal" value="$env{'form.modal'}" />
1953: END
1954: if ($env{'form.replydisc'}) {
1955: $r->print(<<END);
1956: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1957: END
1958: } elsif ($env{'form.editdisc'}) {
1959: $r->print(<<END);
1960: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1961: <input type="hidden" name="parentmsg" value="$parentmsg" />
1962: END
1963: }
1964: $r->print(<<END);
1965: $options
1966: $quote
1967: <p>
1968: $textareaheader
1969: </p>
1970: <br>
1971: <p>
1972: $latexHelp
1973: </p>
1974: <p>
1975: END
1976:
1977: $r->print(&Apache::lonhtmlcommon::start_pick_box());
1978: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
1979: $r->print('<input type="text" name="subject" size="30" value="'.
1980: $subject.'" /></p>');
1981: $r->print(&Apache::lonhtmlcommon::row_closure());
1982: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
1983: $r->print('<textarea name="comment" id="comment" cols="60" rows="10" '.
1984: $textareaclass.'>'.$comment.
1985: '</textarea>');
1986: $r->print(&Apache::lonhtmlcommon::row_closure(1));
1987: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1988:
1989: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1990: if ($env{'form.origpage'}) {
1991: foreach my $attach (@currnewattach) {
1992: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
1993: }
1994: foreach my $oldatt (@currdelold) {
1995: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
1996: }
1997: }
1998: if ($env{'form.editdisc'}) {
1999: if ($attachmenturls) {
2000: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2001: $attachnum = scalar(keys(%currattach));
2002: foreach my $key (keys(%currattach)) {
2003: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2004: }
2005: }
2006: }
2007: } else {
2008: $r->print(<<END);
2009: <p>
2010: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
2011: </p>
2012: END
2013: }
2014: if (exists($env{'form.group'})) {
2015: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2016: }
2017: if (exists($env{'form.ref'})) {
2018: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2019: }
2020: $r->print(<<END);
2021: <p>
2022: <input type="hidden" name="sendit" value="1" />
2023: <input type="button" value="$send" onclick='gosubmit();' />
2024: </p>
2025: </form>
2026: END
2027: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2028: my $now = time;
2029: my $ressymb = $symb;
2030: &Apache::lonenc::check_encrypt(\$ressymb);
2031: my $postidx = '';
2032: if ($env{'form.editdisc'}) {
2033: $postidx = $idx;
2034: }
2035: if (@currnewattach > 0) {
2036: $attachnum += @currnewattach;
2037: }
2038: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2039: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2040: if ($attachnum > 0) {
2041: if (@currnewattach > 0) {
2042: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2043: if (@currnewattach > 1) {
2044: $newattachmsg .= '<ol>';
2045: foreach my $item (@currnewattach) {
2046: $item =~ m#.*/([^/]+)$#;
2047: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2048: }
2049: $newattachmsg .= '</ol>'."\n";
2050: } else {
2051: $currnewattach[0] =~ m#.*/([^/]+)$#;
2052: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2053: }
2054: }
2055: if ($attachmsg) {
2056: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2057: }
2058: if ($newattachmsg) {
2059: $r->print("$newattachmsg<br />");
2060: }
2061: }
2062: }
2063: $r->print(&generate_preview_button().
2064: &Apache::loncommon::end_page());
2065:
2066: }
2067:
2068: sub print_display_options {
2069: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2070: &Apache::loncommon::content_type($r,'text/html');
2071: $r->send_http_header;
2072:
2073: my $function = &Apache::loncommon::get_users_function();
2074: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2075: $env{'user.domain'});
2076:
2077: my %lt = &Apache::lonlocal::texthash(
2078: 'pref' => 'Display Preference',
2079: 'curr' => 'Current setting ',
2080: 'actn' => 'Action',
2081: 'deff' => 'Default for all discussions',
2082: 'prca' => 'Preferences can be set for this discussion that determine ....',
2083: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2084: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2085: 'wipa' => 'Whether individual posts can be marked as read/unread',
2086: 'allposts' => 'All posts',
2087: 'unread' => 'New posts only',
2088: 'unmark' => 'Posts not marked read',
2089: 'ondisp' => 'Once displayed',
2090: 'onmark' => 'Once marked not NEW',
2091: 'toggon' => 'Shown',
2092: 'toggoff' => 'Not shown',
2093: 'disa' => 'Posts displayed?',
2094: 'npmr' => 'New posts cease to be identified as "NEW"?',
2095: 'dotm' => 'Option to mark each post as read/unread?',
2096: 'chgt' => 'Change to ',
2097: 'mkdf' => 'Set to ',
2098: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2099: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2100: );
2101:
2102: my $dispchangeA = $lt{'unread'};
2103: my $dispchangeB = $lt{'unmark'};
2104: my $markchange = $lt{'ondisp'};
2105: my $toggchange = $lt{'toggon'};
2106: my $currdisp = $lt{'allposts'};
2107: my $currmark = $lt{'onmark'};
2108: my $discdisp = 'allposts';
2109: my $discmark = 'onmark';
2110: my $currtogg = $lt{'toggoff'};
2111: my $disctogg = 'toggoff';
2112:
2113: if ($dispchgA eq 'allposts') {
2114: $dispchangeA = $lt{'allposts'};
2115: $currdisp = $lt{'unread'};
2116: $discdisp = 'unread';
2117: }
2118:
2119: if ($markchg eq 'markonread') {
2120: $markchange = $lt{'onmark'};
2121: $currmark = $lt{'ondisp'};
2122: $discmark = 'ondisp';
2123: }
2124:
2125: if ($dispchgB eq 'onlyunread') {
2126: $dispchangeB = $lt{'unread'};
2127: $currdisp = $lt{'unmark'};
2128: $discdisp = 'unmark';
2129: }
2130: if ($toggchg eq 'toggoff') {
2131: $toggchange = $lt{'toggoff'};
2132: $currtogg = $lt{'toggon'};
2133: $disctogg = 'toggon';
2134: }
2135:
2136: my $js = <<END;
2137: <script type="text/javascript">
2138: function discdispChk(caller) {
2139: var disctogg = '$toggchg'
2140: if (caller == 0) {
2141: if (document.modifydisp.discdisp[0].checked == true) {
2142: if (document.modifydisp.discdisp[1].checked == true) {
2143: document.modifydisp.discdisp[1].checked = false
2144: }
2145: }
2146: }
2147: if (caller == 1) {
2148: if (document.modifydisp.discdisp[1].checked == true) {
2149: if (document.modifydisp.discdisp[0].checked == true) {
2150: document.modifydisp.discdisp[0].checked = false
2151: }
2152: if (disctogg == 'toggon') {
2153: document.modifydisp.disctogg.checked = true
2154: }
2155: if (disctogg == 'toggoff') {
2156: document.modifydisp.disctogg.checked = false
2157: }
2158: }
2159: }
2160: if (caller == 2) {
2161: var dispchgB = '$dispchgB'
2162: if (disctogg == 'toggoff') {
2163: if (document.modifydisp.disctogg.checked == true) {
2164: if (dispchgB == 'onlyunmark') {
2165: document.modifydisp.discdisp[1].checked = false
2166: }
2167: }
2168: }
2169: }
2170: }
2171:
2172: function setDisp() {
2173: var prev = "$previous"
2174: var chktotal = 0
2175: if (document.modifydisp.discdisp[0].checked == true) {
2176: document.modifydisp.$dispchgA.value = "$symb"
2177: chktotal ++
2178: }
2179: if (document.modifydisp.discdisp[1].checked == true) {
2180: document.modifydisp.$dispchgB.value = "$symb"
2181: chktotal ++
2182: }
2183: if (document.modifydisp.discmark.checked == true) {
2184: document.modifydisp.$markchg.value = "$symb"
2185: chktotal ++
2186: }
2187: if (document.modifydisp.disctogg.checked == true) {
2188: document.modifydisp.$toggchg.value = "$symb"
2189: chktotal ++
2190: }
2191: if (chktotal > 0) {
2192: document.modifydisp.submit()
2193: } else {
2194: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2195: if (prev > 0) {
2196: location.href = "$feedurl?previous=$previous"
2197: } else {
2198: location.href = "$feedurl"
2199: }
2200: }
2201: }
2202: }
2203: </script>
2204: END
2205:
2206:
2207: my $start_page =
2208: &Apache::loncommon::start_page('Discussion display options',$js);
2209: my $end_page =
2210: &Apache::loncommon::end_page();
2211: $r->print(<<END);
2212: $start_page
2213: <form name="modifydisp" method="post" action="/adm/feedback">
2214: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2215: <br />
2216: END
2217: $r->print(&Apache::loncommon::start_data_table());
2218: $r->print(<<END);
2219: <tr>
2220: <th>$lt{'pref'}</td>
2221: <th>$lt{'curr'}</td>
2222: <th>$lt{'actn'}?</td>
2223: </tr>
2224: END
2225: $r->print(&Apache::loncommon::start_data_table_row());
2226: $r->print(<<END);
2227: <td>$lt{'disa'}</td>
2228: <td>$lt{$discdisp}</td>
2229: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2230: <br />
2231: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2232: </td>
2233: END
2234: $r->print(&Apache::loncommon::end_data_table_row());
2235: $r->print(&Apache::loncommon::start_data_table_row());
2236: $r->print(<<END);
2237: <td>$lt{'npmr'}</td>
2238: <td>$lt{$discmark}</td>
2239: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2240: END
2241: $r->print(&Apache::loncommon::end_data_table_row());
2242: $r->print(&Apache::loncommon::start_data_table_row());
2243: $r->print(<<END);
2244: <td>$lt{'dotm'}</td>
2245: <td>$lt{$disctogg}</td>
2246: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2247: END
2248: my $save = &mt('Save');
2249: $r->print(&Apache::loncommon::end_data_table_row());
2250: $r->print(&Apache::loncommon::end_data_table());
2251: $r->print(<<END);
2252: <br />
2253: <br />
2254: <input type="hidden" name="symb" value="$symb" />
2255: <input type="hidden" name="previous" value="$previous" />
2256: <input type="hidden" name="$dispchgA" value="" />
2257: <input type="hidden" name="$dispchgB" value="" />
2258: <input type="hidden" name="$markchg" value="" />
2259: <input type="hidden" name="$toggchg" value="" />
2260: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2261: END
2262: if (exists($env{'form.group'})) {
2263: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2264: }
2265: if (exists($env{'form.ref'})) {
2266: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2267: }
2268: $r->print("
2269: <br />
2270: <br />
2271: </form>
2272: $end_page
2273: ");
2274: return;
2275: }
2276:
2277: sub print_sortfilter_options {
2278: my ($r,$symb,$previous,$feedurl) = @_;
2279:
2280: &Apache::loncommon::content_type($r,'text/html');
2281: $r->send_http_header;
2282:
2283: &Apache::lonenc::check_encrypt(\$symb);
2284: my @sections;
2285: my $section_sel = '';
2286: my $numvisible = 5;
2287: my @groups;
2288: my $group_sel = '';
2289: my $numgroupvis = 5;
2290: my %sectioncount = &Apache::loncommon::get_sections();
2291: my @courseroles = qw(st ad ep ta in);
2292: my $crstype = &Apache::loncommon::course_type();
2293: my $ccrole = 'cc';
2294: if ($crstype eq 'Community') {
2295: $ccrole = 'co';
2296: }
2297: push(@courseroles,$ccrole);
2298:
2299: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2300: @sections = ('all',$env{'request.course.sec'});
2301: $numvisible = 2;
2302: } else {
2303: @sections = sort {$a cmp $b} keys(%sectioncount);
2304: if (scalar(@sections) < 4) {
2305: $numvisible = scalar(@sections) + 1;
2306: }
2307: unshift(@sections,'all'); # Put 'all' at the front of the list
2308:
2309: }
2310: foreach my $sec (@sections) {
2311: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2312: }
2313:
2314: if (&check_group_priv() eq 'ok') {
2315: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2316: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2317: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2318: @groups = sort {$a cmp $b} keys(%curr_groups);
2319: if (scalar(@groups) < 4) {
2320: $numgroupvis = scalar(@groups) + 1;
2321: }
2322: unshift(@groups,'all'); # Put 'all' at the front of the list
2323: } else {
2324: my @coursegroups = split(/:/,$env{'request.course.groups'});
2325: if (@coursegroups > 0) {
2326: @coursegroups = sort {$a cmp $b} @coursegroups;
2327: @groups = ('all',@coursegroups);
2328: if (scalar(@groups) < 4) {
2329: $numgroupvis = scalar(@groups) + 1;
2330: }
2331: } else {
2332: @groups = ('all');
2333: $numgroupvis = 1;
2334: }
2335: }
2336: foreach my $group (@groups) {
2337: $group_sel .= " <option value=\"$group\">$group</option>\n";
2338: }
2339:
2340: my $function = &Apache::loncommon::get_users_function();
2341: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2342: $env{'user.domain'});
2343: my %lt = &Apache::lonlocal::texthash(
2344: 'diop' => 'Display Options',
2345: 'curr' => 'Current setting ',
2346: 'actn' => 'Action',
2347: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2348: 'soor' => 'Sort order',
2349: 'spur' => 'Specific user roles',
2350: 'sprs' => 'Specific role status',
2351: 'spse' => 'Specific sections',
2352: 'spgr' => 'Specific groups',
2353: 'psub' => 'Pick specific users (by name)',
2354: 'shal' => 'Show a list of current posters',
2355: 'stor' => 'Save changes',
2356: );
2357:
2358: my %sort_types = ();
2359: my %role_types = ();
2360: my %status_types = ();
2361: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2362:
2363: my $js = <<END;
2364: <script type="text/javascript">
2365: function verifyFilter() {
2366: var rolenum = 0
2367: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2368: if (document.modifyshown.rolefilter.options[i].selected == true) {
2369: rolenum ++
2370: }
2371: }
2372: if (rolenum == 0) {
2373: document.modifyshown.rolefilter.options[0].selected = true
2374: }
2375:
2376: var secnum = 0
2377: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2378: if (document.modifyshown.sectionpick.options[i].selected == true) {
2379: secnum ++
2380: }
2381: }
2382: if (secnum == 0) {
2383: document.modifyshown.sectionpick.options[0].selected = true
2384: }
2385:
2386: var grpnum = 0
2387: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2388: if (document.modifyshown.grouppick.options[i].selected == true) {
2389: grpnum ++
2390: }
2391: }
2392: if (grpnum == 0) {
2393: document.modifyshown.grouppick.options[0].selected = true
2394: }
2395:
2396: document.modifyshown.submit();
2397: }
2398: </script>
2399: END
2400:
2401: my $start_page=
2402: &Apache::loncommon::start_page('Discussion options',$js);
2403: my $end_page=
2404: &Apache::loncommon::end_page();
2405:
2406: $r->print(<<END);
2407: $start_page
2408: <form name="modifyshown" method="post" action="/adm/feedback">
2409: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2410: <br />
2411: <table border="0">
2412: <tr>
2413: <th>$lt{'soor'}</th>
2414: <th> </th>
2415: <th>$lt{'sprs'}</th>
2416: <th> </th>
2417: <th>$lt{'spur'}</th>
2418: <th> </th>
2419: <th>$lt{'spse'}</th>
2420: <th> </th>
2421: <th>$lt{'spgr'}</th>
2422: <th> </th>
2423: <th>$lt{'psub'}</th>
2424: </tr>
2425: <tr>
2426: <td align="center" valign="top">
2427: <select name="sortposts">
2428: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2429: <option value="descdate">$sort_types{'descdate'}</option>
2430: <option value="thread">$sort_types{'thread'}</option>
2431: <option value="subject">$sort_types{'subject'}</option>
2432: <option value="username">$sort_types{'username'}</option>
2433: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2434: </select>
2435: </td>
2436: <td> </td>
2437: <td align="center" valign="top">
2438: <select name="statusfilter">
2439: <option value="all" selected="selected">$status_types{'all'}</option>
2440: <option value="Active">$status_types{'Active'}</option>
2441: <option value="Expired">$status_types{'Expired'}</option>
2442: <option value="Future">$status_types{'Future'}</option>
2443: </select>
2444: </td>
2445: <td> </td>
2446: <td align="center" valign="top">
2447: <select name="rolefilter" multiple="multiple" size="5">
2448: <option value="all">$role_types{'all'}</option>
2449: <option value="st">$role_types{'st'}</option>
2450: <option value="$ccrole">$role_types{$ccrole}</option>
2451: <option value="in">$role_types{'in'}</option>
2452: <option value="ta">$role_types{'ta'}</option>
2453: <option value="ep">$role_types{'ep'}</option>
2454: <option value="ad">$role_types{'ad'}</option>
2455: <option value="cr">$role_types{'cr'}</option>
2456: </select>
2457: </td>
2458: <td> </td>
2459: <td align="center" valign="top">
2460: <select name="sectionpick" multiple="multiple" size="$numvisible">
2461: $section_sel
2462: </select>
2463: </td>
2464: <td> </td>
2465: <td align="center" valign="top">
2466: <select name="grouppick" multiple="multiple" size="$numvisible">
2467: $group_sel
2468: </select>
2469: </td>
2470: <td> </td>
2471: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2472: </tr>
2473: </table>
2474: <br />
2475: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2476: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2477: <input type="hidden" name="previous" value="$previous" />
2478: <input type="hidden" name="applysort" value="$symb" />
2479: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2480: END
2481: if (exists($env{'form.group'})) {
2482: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2483: }
2484: if (exists($env{'form.ref'})) {
2485: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2486: }
2487: $r->print("
2488: <br />
2489: <br />
2490: </form>
2491: $end_page
2492: ");
2493: }
2494:
2495: sub print_showposters {
2496: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2497:
2498: &Apache::loncommon::content_type($r,'text/html');
2499: $r->send_http_header;
2500:
2501: &Apache::lonenc::check_encrypt(\$symb);
2502: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2503: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2504: my $group = $env{'form.group'};
2505: my $ressymb = &wrap_symb($symb);
2506: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2507: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2508: $cdom,$cnum);
2509: my %namesort = ();
2510: my %postcounts = ();
2511:
2512: my %lt = &Apache::lonlocal::texthash(
2513: sele => 'Select',
2514: full => 'Fullname',
2515: usdo => 'Username:domain',
2516: post => 'Posts',
2517: );
2518: if ($contrib{'version'}) {
2519: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2520: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2521: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2522: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2523: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2524: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2525: my $lastname = $names{'lastname'};
2526: my $firstname = $names{'firstname'};
2527: if ($lastname eq '') {
2528: $lastname = '_';
2529: }
2530: if ($firstname eq '') {
2531: $firstname = '_';
2532: }
2533: unless (defined($namesort{$lastname})) {
2534: %{$namesort{$lastname}} = ();
2535: }
2536: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2537: $postcounts{$poster} ++;
2538: if (defined($namesort{$lastname}{$firstname})) {
2539: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2540: push(@{$namesort{$lastname}{$firstname}}, $poster);
2541: }
2542: } else {
2543: @{$namesort{$lastname}{$firstname}} = ("$poster");
2544: }
2545: }
2546: }
2547: }
2548: }
2549:
2550: my $start_page = &Apache::loncommon::start_page('Discussion options');
2551: my $table_start =&Apache::loncommon::start_data_table();
2552: $r->print(<<END);
2553: $start_page
2554: <form name="pickpostersform" method="post">
2555: <br />
2556: $table_start
2557: <tr>
2558: <th>#</th>
2559: <th>$lt{'sele'}</th>
2560: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2561: <th>$lt{'post'}</th>
2562: </tr>
2563: END
2564: my $count = 0;
2565: foreach my $last (sort(keys(%namesort))) {
2566: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2567: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2568: my ($uname,$udom) = split(/:/,$user);
2569: if (!$uname || !$udom) {
2570: next;
2571: } else {
2572: $count ++;
2573: $r->print(&Apache::loncommon::start_data_table_row().
2574: '<td align="right">'.$count.'</td>
2575: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2576: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2577: <td>'.$postcounts{$user}.'</td>'.
2578: &Apache::loncommon::end_data_table_row());
2579: }
2580: }
2581: }
2582: }
2583: $r->print(&Apache::loncommon::end_data_table());
2584: my $end_page = &Apache::loncommon::end_page();
2585: $r->print(<<END);
2586: <br />
2587: <input type="hidden" name="sortposts" value="$sortposts" />
2588: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2589: <input type="hidden" name="userpick" value="$symb" />
2590: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2591: </form>
2592: $end_page
2593: END
2594: }
2595:
2596: sub get_post_versions {
2597: my ($versions,$incoming,$htmldecode,$numver) = @_;
2598: if ($incoming =~ /^<version num="0">/) {
2599: my $p = HTML::LCParser->new(\$incoming);
2600: my $done = 0;
2601:
2602: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2603: my $num = $token->[1]{num};
2604: my $text = $p->get_text("/version");
2605: if (defined($numver)) {
2606: if ($num == $numver) {
2607: if ($htmldecode) {
2608: $text = &HTML::Entities::decode($text);
2609: }
2610: $$versions{$numver}=$text;
2611: $done = 1;
2612: }
2613: } else {
2614: if ($htmldecode) {
2615: $text = &HTML::Entities::decode($text);
2616: }
2617: $$versions{$num}=$text;
2618: }
2619: }
2620: } else {
2621: if (!defined($numver)) {
2622: $numver = 0;
2623: }
2624: if ($htmldecode) {
2625: $$versions{$numver} = $incoming;
2626: } else {
2627: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2628: }
2629: }
2630: return;
2631: }
2632:
2633: sub get_post_attachments {
2634: my ($attachments,$attachmenturls) = @_;
2635: my $num;
2636: if ($attachmenturls =~ m/^<attachment id="0">/) {
2637: my $p = HTML::LCParser->new(\$attachmenturls);
2638: while (my $token = $p->get_tag("attachment","filename","post")) {
2639: if ($token->[0] eq "attachment") {
2640: $num = $token->[1]{id};
2641: %{$$attachments{$num}} =();
2642: } elsif ($token->[0] eq "filename") {
2643: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2644: } elsif ($token->[0] eq "post") {
2645: my $id = $token->[1]{id};
2646: $$attachments{$num}{$id} = $p->get_text("/post");
2647: }
2648: }
2649: } else {
2650: %{$$attachments{'0'}} = ();
2651: $$attachments{'0'}{'filename'} = $attachmenturls;
2652: $$attachments{'0'}{'0'} = 'n';
2653: }
2654:
2655: return;
2656: }
2657:
2658: sub fail_redirect {
2659: my ($r,$feedurl) = @_;
2660: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2661: my %lt = &Apache::lonlocal::texthash(
2662: 'sorr' => 'Sorry, no recipients ...',
2663: );
2664: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2665: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2666: {'redirect' => [2,$feedurl],
2667: 'only_body' => 1,}));
2668: $r->print(<<ENDFAILREDIR);
2669: <img align="right" src="$logo" />
2670: <b>$lt{'sorr'}</b>
2671: ENDFAILREDIR
2672: $r->print(&Apache::loncommon::end_page());
2673: }
2674:
2675: sub redirect_back {
2676: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2677: my $sorttag = '';
2678: my $roletag = '';
2679: my $statustag = '';
2680: my $sectag = '';
2681: my $grptag = '';
2682: my $userpicktag = '';
2683: my $qrystr = '';
2684: my $prevtag = '';
2685:
2686: &Apache::loncommon::content_type($r,'text/html');
2687: $r->send_http_header;
2688: &dewrapper(\$feedurl);
2689: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2690: if ($previous > 0) {
2691: $qrystr = 'previous='.$previous;
2692: if ($feedurl =~ /\?register=1/) {
2693: $feedurl .= '&'.$qrystr;
2694: } else {
2695: $feedurl .= '?'.$qrystr;
2696: }
2697: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2698: }
2699: if (defined($sort)) {
2700: my $sortqry = 'sortposts='.$sort;
2701: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2702: $feedurl .= '&'.$sortqry;
2703: } else {
2704: $feedurl .= '?'.$sortqry;
2705: }
2706: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2707: if (defined($numpicks)) {
2708: my $userpickqry = 'totposters='.$numpicks;
2709: $feedurl .= '&'.$userpickqry;
2710: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2711: } else {
2712: if (ref($sectionpick) eq 'ARRAY') {
2713: $feedurl .= '&sectionpick=';
2714: $sectag .= '<input type="hidden" name="sectionpick" value="';
2715: foreach my $sec (@{$sectionpick}) {
2716: $feedurl .= $sec.',';
2717: $sectag .= $sec.',';
2718: }
2719: $feedurl =~ s/,$//;
2720: $sectag =~ s/,$//;
2721: $sectag .= '" />';
2722: } else {
2723: $feedurl .= '&sectionpick='.$sectionpick;
2724: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2725: }
2726: if (ref($grouppick) eq 'ARRAY') {
2727: $feedurl .= '&grouppick=';
2728: $sectag .= '<input type="hidden" name="grouppick" value="';
2729: foreach my $grp (@{$grouppick}) {
2730: $feedurl .= $grp.',';
2731: $grptag .= $grp.',';
2732: }
2733: $feedurl =~ s/,$//;
2734: $grptag =~ s/,$//;
2735: $grptag .= '" />';
2736: } else {
2737: $feedurl .= '&grouppick='.$grouppick;
2738: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2739: }
2740: if (ref($rolefilter) eq 'ARRAY') {
2741: $feedurl .= '&rolefilter=';
2742: $roletag .= '<input type="hidden" name="rolefilter" value="';
2743: foreach my $role (@{$rolefilter}) {
2744: $feedurl .= $role.',';
2745: $roletag .= $role.',';
2746: }
2747: $feedurl =~ s/,$//;
2748: $roletag =~ s/,$//;
2749: $roletag .= '" />';
2750: } else {
2751: $feedurl .= '&rolefilter='.$rolefilter;
2752: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2753: }
2754: $feedurl .= '&statusfilter='.$statusfilter;
2755: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2756: }
2757: }
2758: my $grouptag;
2759: if ($group ne '') {
2760: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2761: my $refarg;
2762: if (exists($env{'form.ref'})) {
2763: $refarg = '&ref='.$env{'form.ref'};
2764: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2765: }
2766: if ($feedurl =~ /\?/) {
2767: $feedurl .= '&group='.$group.$refarg;
2768: } else {
2769: $feedurl .= '?group='.$group.$refarg;
2770: }
2771: }
2772: &Apache::lonenc::check_encrypt(\$feedurl);
2773: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2774: my %parms=('only_body' => 1);
2775: if ($env{'form.modal'}) {
2776: $parms{'add_entries'}={'onLoad' => 'document.forms.reldt.submit()'};
2777: } else {
2778: $parms{'redirect'}=[0,$feedurl];
2779: }
2780: my $start_page=
2781: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2782: my $end_page = &Apache::loncommon::end_page();
2783: $r->print(<<ENDREDIR);
2784: $start_page
2785: <img align="right" src="$logo" />
2786: $typestyle
2787: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2788: $blog
2789: $toolarge
2790: <font color="red">$status</font>
2791: <form name="reldt" action="$feedurl" target="loncapaclient">
2792: $prevtag
2793: $sorttag
2794: $statustag
2795: $roletag
2796: $sectag
2797: $grptag
2798: $userpicktag
2799: $grouptag
2800: </form>
2801: $end_page
2802: ENDREDIR
2803: }
2804:
2805: sub no_redirect_back {
2806: my ($r,$feedurl) = @_;
2807: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2808:
2809: my %onload;
2810:
2811: my %body_options = ('only_body' => 1,
2812: 'bgcolor' => '#FFFFFF',
2813: 'add_entries' => \%onload,);
2814:
2815: if ($feedurl !~ m{^/adm/feedback}) {
2816: $body_options{'redirect'} = [2,$feedurl];
2817: }
2818: my $start_page=
2819: &Apache::loncommon::start_page('Feedback not sent',undef,
2820: \%body_options);
2821:
2822: my $end_page = &Apache::loncommon::end_page();
2823:
2824: &Apache::lonenc::check_encrypt(\$feedurl);
2825: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2826: $r->print (<<ENDNOREDIRTWO);
2827: $start_page
2828: <img align="right" src="$logo" />
2829: <b>$nofeed</b>
2830: <br />
2831: $end_page
2832: ENDNOREDIRTWO
2833: }
2834:
2835: sub screen_header {
2836: my ($feedurl,$symb,$group) = @_;
2837: my $crscontent = &mt('Question/Comment/Feedback about course content');
2838: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2839: my $contribdisc = &mt('Contribution to course discussion of resource');
2840: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2841: my $namevis = &mt('name only visible to course faculty');
2842: my $crstype;
2843: if ($env{'request.course.id'}) {
2844: $crstype = &Apache::loncommon::course_type();
2845: if ($crstype eq 'Community') {
2846: $crscontent = &mt('Question/Comment/Feedback about community content');
2847: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2848: $contribdisc = &mt('Contribution to community discussion of resource');
2849: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2850: $namevis = &mt('name only visible to community facilitators');
2851: }
2852: }
2853: my $msgoptions='';
2854: my $discussoptions='';
2855: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2856: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2857: $msgoptions=
2858: '<label><input type="radio" name="discuss" value="author" /> '.
2859: &mt('Feedback to resource author').'</label><br />';
2860: }
2861: my %optionhash=();
2862: foreach my $type ('question','comment','policy') {
2863: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2864: }
2865: if (&feedback_available(1)) {
2866: $msgoptions.=
2867: '<label><input type="radio" name="discuss" value="question" /> '.
2868: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label><br />';
2869: }
2870: if (&feedback_available(0,1)) {
2871: $msgoptions.=
2872: '<label><input type="radio" name="discuss" value="course" /> '.
2873: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2874: '</label><br />';
2875: }
2876: if (&feedback_available(0,0,1)) {
2877: $msgoptions.=
2878: '<label><input type="radio" name="discuss" value="policy" /> '.
2879: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2880: '</label><br />';
2881: }
2882: }
2883: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2884: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2885: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2886: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2887: my $realsymb = &get_realsymb($symb);
2888: if (!$blocked && &discussion_open(undef,$realsymb) &&
2889: (&Apache::lonnet::allowed('pch',
2890: $env{'request.course.id'}.
2891: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2892: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2893: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2894: $contribdisc.
2895: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2896: $anoncontrib.
2897: ' <i>('.$namevis.')</i></label> '.
2898: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2899: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2900: if (!$blockblog) {
2901: $discussoptions.= &add_blog_checkbox($crstype);
2902: }
2903: }
2904: }
2905: if ($msgoptions) {
2906: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2907: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
2908: '<td>'.$msgoptions.'</td></tr>';
2909: }
2910: if ($discussoptions) {
2911: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2912: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
2913: '<td>'.$discussoptions.'</td></tr>';
2914: }
2915: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
2916: }
2917:
2918: sub resource_output {
2919: my ($feedurl) = @_;
2920: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2921: $usersaw=~s/\<body[^\>]*\>//gi;
2922: $usersaw=~s/\<\/body\>//gi;
2923: $usersaw=~s/\<html\>//gi;
2924: $usersaw=~s/\<\/html\>//gi;
2925: $usersaw=~s/\<head\>//gi;
2926: $usersaw=~s/\<\/head\>//gi;
2927: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2928: return $usersaw;
2929: }
2930:
2931: sub clear_out_html {
2932: my ($message,$override)=@_;
2933: # Always allow the <m>-tag
2934: my %html=(M=>1);
2935: # Check if more is allowed
2936: my $cid=$env{'request.course.id'};
2937: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2938: ($override)) {
2939: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2940: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2941: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2942: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2943: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2944: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2945: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2946: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2947: }
2948: # Do the substitution of everything that is not explicitly allowed
2949: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2950: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2951: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2952: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2953: return $message;
2954: }
2955:
2956: sub assemble_email {
2957: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2958: my %lt = &Apache::lonlocal::texthash(
2959: 'prev' => 'Previous attempts of student (if applicable)',
2960: 'orig' => 'Original screen output (if applicable)',
2961: 'corr' => 'Correct Answer(s) (if applicable)',
2962: );
2963: if (&Apache::loncommon::course_type() eq 'Community') {
2964: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2965: }
2966: my $email=<<"ENDEMAIL";
2967: $message
2968: ENDEMAIL
2969: my $citations=<<"ENDCITE";
2970: <h2>$lt{'prev'}</h2>
2971: $prevattempts
2972: <br /><hr />
2973: <h2>$lt{'orig'}</h2>
2974: $usersaw
2975: <h2>$lt{'corr'}</h2>
2976: $useranswer
2977: ENDCITE
2978: return ($email,$citations);
2979: }
2980:
2981:
2982: sub feedback_available {
2983: my ($question,$course,$policy)=@_;
2984: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2985: $course,$policy);
2986: return scalar(%to);
2987: }
2988:
2989: sub send_msg {
2990: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2991: my $status='';
2992: my $sendsomething=0;
2993: my $restitle = &get_resource_title($symb,$feedurl);
2994: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2995: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2996: foreach my $key (keys(%to)) {
2997: if ($key) {
2998: my ($user,$domain) = split(/\:/,$key,2);
2999: if (!defined($user)) {
3000: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3001: } elsif (!defined($domain)) {
3002: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3003: } else {
3004: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3005: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3006: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
3007: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3008: } else {
3009: $sendsomething++;
3010: }
3011: }
3012: }
3013: }
3014:
3015: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3016: # There are two entries within the framework of a course:
3017: # - the URLs for which feedback was provided
3018: # - the total number of contributions
3019: if ($sendsomething) {
3020: my %record=&getfeedbackrecords();
3021: my ($temp)=keys(%record);
3022: unless ($temp=~/^error\:/) {
3023: my %newrecord=();
3024: $newrecord{'resource'}=$feedurl;
3025: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3026: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3027: $status.='<br />'.&mt('Not registered').'<br />';
3028: }
3029: }
3030: }
3031: return ($status,$sendsomething);
3032: }
3033:
3034: # Routine to get the complete feedback records
3035:
3036: sub getfeedbackrecords {
3037: my ($uname,$udom,$course)=@_;
3038: unless ($uname) { $uname=$env{'user.name'}; }
3039: unless ($udom) { $udom=$env{'user.domain'}; }
3040: unless ($course) { $course=$env{'request.course.id'}; }
3041: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3042: return %record;
3043: }
3044:
3045: # Routine to get feedback statistics
3046:
3047: sub getfeedbackstats {
3048: my %record=&getfeedbackrecords(@_);
3049: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3050: }
3051:
3052: # Store feedback credit
3053:
3054: sub storefeedbackpoints {
3055: my ($points,$uname,$udom,$course)=@_;
3056: unless ($points) { $points=0; }
3057: unless ($uname) { $uname=$env{'user.name'}; }
3058: unless ($udom) { $udom=$env{'user.domain'}; }
3059: unless ($course) { $course=$env{'request.course.id'}; }
3060: my %record=('grader_user' => $env{'user.name'},
3061: 'grader_domain' => $env{'user.domain'},
3062: 'points' => $points);
3063: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3064: }
3065:
3066: # Store feedback "likes"
3067:
3068: sub storefeedbacklikes {
3069: my ($likes,$uname,$udom,$course)=@_;
3070: unless ($likes) { $likes=0; }
3071: if ($likes>0) { $likes=1; }
3072: if ($likes<0) { $likes=-1; }
3073: unless ($uname) { $uname=$env{'user.name'}; }
3074: unless ($udom) { $udom=$env{'user.domain'}; }
3075: unless ($course) { $course=$env{'request.course.id'}; }
3076: my %record=&getfeedbackrecords($uname,$udom,$course);
3077: my $totallikes=$record{'totallikes'};
3078: $totallikes+=$likes;
3079: my %newrecord=('likes_user' => $env{'user.name'},
3080: 'likes_domain' => $env{'user.domain'},
3081: 'likes' => $likes,
3082: 'totallikes' => $totallikes);
3083: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3084: }
3085:
3086:
3087: sub adddiscuss {
3088: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3089: my $status='';
3090: my $realsymb = &get_realsymb($symb);
3091: my ($cnum,$cdom);
3092: if ($env{'request.course.id'}) {
3093: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3094: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3095: }
3096: if (&discussion_open(undef,$realsymb) &&
3097: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3098: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3099: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3100: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3101:
3102: my %contrib=('message' => $email,
3103: 'sendername' => $env{'user.name'},
3104: 'senderdomain' => $env{'user.domain'},
3105: 'screenname' => $env{'environment.screenname'},
3106: 'plainname' => $env{'environment.firstname'}.' '.
3107: $env{'environment.middlename'}.' '.
3108: $env{'environment.lastname'}.' '.
3109: $env{'enrironment.generation'},
3110: 'attachmenturl'=> $attachmenturl,
3111: 'subject' => $subject);
3112: if ($env{'form.replydisc'}) {
3113: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3114: }
3115: if ($anon) {
3116: $contrib{'anonymous'}='true';
3117: }
3118: if (($symb) && ($email)) {
3119: my $now = time;
3120: if ($env{'form.editdisc'}) {
3121: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3122: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3123: $contrib{'timestamp'} = $now;
3124: $contrib{'history'} = '';
3125: my $numoldver = 0;
3126: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3127: &Apache::lonenc::check_decrypt(\$oldsymb);
3128: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3129: # get timestamp for last post and history
3130: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3131: $env{'course.'.$env{'request.course.id'}.'.domain'},
3132: $env{'course.'.$env{'request.course.id'}.'.num'});
3133: if (defined($oldcontrib{$oldidx.':replyto'})) {
3134: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3135: }
3136: if (defined($oldcontrib{$oldidx.':history'})) {
3137: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3138: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3139: $numoldver = @oldversions;
3140: } else {
3141: $numoldver = 1;
3142: }
3143: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3144: }
3145: my $numnewver = $numoldver + 1;
3146: if (defined($oldcontrib{$oldidx.':subject'})) {
3147: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3148: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3149: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3150: } else {
3151: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3152: }
3153: }
3154: if (defined($oldcontrib{$oldidx.':message'})) {
3155: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3156: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3157: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3158: } else {
3159: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3160: }
3161: }
3162: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3163: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3164: $oldsymb,$oldidx,\%contrib,
3165: $env{'course.'.$env{'request.course.id'}.'.domain'},
3166: $env{'course.'.$env{'request.course.id'}.'.num'});
3167: $status='Editing class discussion'.($anon?' (anonymous)':'');
3168: } else {
3169: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3170: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3171: $env{'course.'.$env{'request.course.id'}.'.domain'},
3172: $env{'course.'.$env{'request.course.id'}.'.num'});
3173: }
3174: my %storenewentry=($symb => $now);
3175: $status.='<br />'.&mt('Updating discussion time').': '.
3176: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3177: $env{'course.'.$env{'request.course.id'}.'.domain'},
3178: $env{'course.'.$env{'request.course.id'}.'.num'});
3179: }
3180: my %record=&getdiscussionrecords();
3181: my ($temp)=keys(%record);
3182: unless ($temp=~/^error\:/) {
3183: my %newrecord=();
3184: $newrecord{'resource'}=$symb;
3185: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3186: $status.='<br />'.&mt('Registering').': '.
3187: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3188: &updatekarma();
3189: }
3190: } else {
3191: $status.='Failed.';
3192: }
3193: return $status.'<br />';
3194: }
3195:
3196:
3197: # Routine to get the complete discussion records
3198:
3199: sub getdiscussionrecords {
3200: my ($uname,$udom,$course)=@_;
3201: unless ($uname) { $uname=$env{'user.name'}; }
3202: unless ($udom) { $udom=$env{'user.domain'}; }
3203: unless ($course) { $course=$env{'request.course.id'}; }
3204: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3205: return %record;
3206: }
3207:
3208: # Routine to get discussion statistics
3209:
3210: sub getdiscussionstats {
3211: my %record=&getdiscussionrecords(@_);
3212: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3213: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3214: }
3215:
3216: # Calculate discussion karma
3217:
3218: sub calcdiscussionkarma {
3219: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3220: my $karma=0;
3221: if ($votes>0) {
3222: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3223: if ($karma<0) { $karma=0; }
3224: if ($karma>5) { $karma=5; }
3225: }
3226: return $karma;
3227: }
3228:
3229: # Update karma
3230:
3231: sub updatekarma {
3232: my ($uname,$udom,$course)=@_;
3233: unless ($uname) { $uname=$env{'user.name'}; }
3234: unless ($udom) { $udom=$env{'user.domain'}; }
3235: unless ($course) { $course=$env{'request.course.id'}; }
3236: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3237: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3238: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3239: return $karma;
3240: }
3241:
3242: # Retrieve karma
3243:
3244: sub userkarma {
3245: my ($uname,$udom,$course)=@_;
3246: unless ($uname) { $uname=$env{'user.name'}; }
3247: unless ($udom) { $udom=$env{'user.domain'}; }
3248: unless ($course) { $course=$env{'request.course.id'}; }
3249: my $hashkey=$uname.':'.$udom.':'.$course;
3250: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3251: if ($cached) {
3252: return $karma;
3253: }
3254: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3255: $karma=$userdisc{'karma'};
3256: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3257: return $karma;
3258: }
3259:
3260: # Store discussion credit
3261:
3262: sub storediscussionpoints {
3263: my ($points,$uname,$udom,$course)=@_;
3264: unless ($points) { $points=0; }
3265: unless ($uname) { $uname=$env{'user.name'}; }
3266: unless ($udom) { $udom=$env{'user.domain'}; }
3267: unless ($course) { $course=$env{'request.course.id'}; }
3268: my %record=('grader_user' => $env{'user.name'},
3269: 'grader_domain' => $env{'user.domain'},
3270: 'points' => $points);
3271: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3272: }
3273:
3274: # Store discussion "likes"
3275:
3276: sub storediscussionlikes {
3277: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3278: unless ($uname) { $uname=$env{'user.name'}; }
3279: unless ($udom) { $udom=$env{'user.domain'}; }
3280: unless ($course) { $course=$env{'request.course.id'}; }
3281: my %record=&getdiscussionrecords($uname,$udom,$course);
3282: my $totallikes=$record{'totallikes'};
3283: my $totalunlikes=$record{'totalunlikes'};
3284: $totallikes += $chglikes;
3285: $totalunlikes += $chgunlikes;
3286: my %newrecord=('likes_user' => $env{'user.name'},
3287: 'likes_domain' => $env{'user.domain'},
3288: 'totallikes' => $totallikes,
3289: 'totalunlikes' => $totalunlikes,
3290: 'context' => $context);
3291: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3292: if ($status eq 'ok') {
3293: &updatekarma($uname,$udom,$course);
3294: }
3295: return $status;
3296: }
3297:
3298: sub get_discussion_info {
3299: my ($idx,%contrib) = @_;
3300: my $changelast = 0;
3301: my $count = 0;
3302: my $hiddenflag = 0;
3303: my $deletedflag = 0;
3304: my ($hidden,$deleted,%info,$newlastdisc);
3305: my $version = $contrib{'version'};
3306: if ($version) {
3307: for (my $id=$version; $id>0; $id--) {
3308: my $vkeys=$contrib{$id.':keys'};
3309: my @keys=split(/:/,$vkeys);
3310: if (grep(/^hidden$/,@keys)) {
3311: if (!$hiddenflag) {
3312: $hidden = $contrib{$id.':hidden'};
3313: $hiddenflag = 1;
3314: }
3315: } elsif (grep(/^deleted$/,@keys)) {
3316: if (!$deletedflag) {
3317: $deleted = $contrib{$id.':deleted'};
3318: $deletedflag = 1;
3319: }
3320: } else {
3321: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3322: $count++;
3323: $info{$count}{'id'} = $id;
3324: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3325: }
3326: }
3327: }
3328: if ($info{'1'}{'id'} == $idx) {
3329: $changelast = 1;
3330: if ($count > 1) {
3331: $newlastdisc = $info{'2'}{'timestamp'};
3332: } else {
3333: $newlastdisc = 0;
3334: }
3335: }
3336: }
3337: return ($changelast,$newlastdisc);
3338: }
3339:
3340: # ----------------------------------------------------------- Preview function
3341:
3342: sub show_preview {
3343: my ($r) = @_;
3344: &Apache::loncommon::content_type($r,'text/html');
3345: $r->send_http_header;
3346: my $start_page=
3347: &Apache::loncommon::start_page('Preview',undef,
3348: {'only_body' => 1,});
3349:
3350: my $message=&clear_out_html($env{'form.comment'});
3351: &newline_to_br(\$message);
3352: $message=&Apache::lonspeller::markeduptext($message);
3353: $message=&Apache::lontexconvert::msgtexconverted($message);
3354: my $subject=&clear_out_html($env{'form.subject'});
3355: $subject=~s/\n/\<br \/\>/g;
3356: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3357:
3358: my $end_page = &Apache::loncommon::end_page();
3359:
3360: $r->print($start_page
3361: .'<h1>'.&mt('Preview').'</h1>'
3362: .&Apache::lonhtmlcommon::start_pick_box()
3363: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3364: .$subject
3365: .&Apache::lonhtmlcommon::row_closure()
3366: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3367: .$message
3368: .&Apache::lonhtmlcommon::row_closure(1)
3369: .&Apache::lonhtmlcommon::end_pick_box()
3370: .$end_page
3371: );
3372: }
3373:
3374: sub contains_block_html {
3375: my ($message)=@_;
3376: return ($message =~ m{
3377: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3378: \s*
3379: (\w+\=['"]\w+['"])*
3380: \s*
3381: (
3382: \s*/>|
3383: >.*</\1\s*>
3384: )}xs
3385: );
3386: }
3387:
3388: sub tidy_html {
3389: my ($message)=@_;
3390: # my $tidy = HTML::Tidy::libXML->new();
3391: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3392: # $xhtml =~ m/<body>(.*)<\/body>/is;
3393: # my $clean = $1;
3394: # # remove any empty block-level tags
3395: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3396: # $message=$clean;
3397: return $message;
3398: }
3399:
3400: sub newline_to_br {
3401: my ($message)=@_;
3402: my $newmessage;
3403: my $parser=HTML::LCParser->new($message);
3404: while (my $token=$parser->get_token()) {
3405: if ($token->[0] eq 'T') {
3406: my $text=$token->[1];
3407: $text=~s/\n/\<br \/\>/g;
3408: $newmessage.=$text;
3409: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3410: $newmessage.=$token->[1];
3411: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3412: $newmessage.=$token->[2];
3413: } elsif ($token->[0] eq 'S') {
3414: $newmessage.=$token->[4];
3415: }
3416:
3417: }
3418: $$message=$newmessage;
3419: }
3420:
3421: sub generate_preview_button {
3422: my ($formname,$fieldname)=@_;
3423: unless ($formname) { $formname='mailform'; }
3424: unless ($fieldname) { $fieldname='comment'; }
3425: my $pre=&mt("Show Preview and Check Spelling");
3426: return(<<ENDPREVIEW);
3427: <br />
3428: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3429: <input type="hidden" name="subject" />
3430: <input type="hidden" name="comment" />
3431: <input type="button" value="$pre"
3432: 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();" />
3433: </form>
3434: ENDPREVIEW
3435: }
3436:
3437: sub modify_attachments {
3438: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3439: $attachmaxtext,$toolarge)=@_;
3440:
3441: my %lt = &Apache::lonlocal::texthash(
3442: 'subj' => 'Subject',
3443: 'chth' => 'Check the checkboxes for any you wish to remove.',
3444: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3445: 'adda' => 'Add a new attachment to this post',
3446: 'stch' => 'Save Changes',
3447: 'clic' => 'Add/remove attachments',
3448: );
3449: my $js = <<END;
3450: <script type="text/javascript">
3451: function setAction () {
3452: document.modattachments.action = document.modattachments.origpage.value;
3453: document.modattachments.submit();
3454: }
3455: </script>
3456: END
3457:
3458: # Breadcrumbs
3459: my $brcrum = [{'href' => '',
3460: 'text' => 'Discussion Post Attachments'}];
3461: my %parms=('only_body' => 1);
3462: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3463:
3464: my $start_page =
3465: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3466:
3467: my $orig_subject = &unescape($env{'form.subject'});
3468: my $subject=&clear_out_html($orig_subject);
3469: $subject=~s/\n/\<br \/\>/g;
3470: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3471: my $timestamp=$env{'form.timestamp'};
3472: my $numoldver=$env{'form.numoldver'};
3473:
3474: my $msg = '';
3475: my %attachments = ();
3476: my %currattach = ();
3477: if ($idx) {
3478: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3479: }
3480: &Apache::lonenc::check_encrypt(\$symb);
3481:
3482: my $end_page =
3483: &Apache::loncommon::end_page();
3484:
3485: $r->print(<<END);
3486: $start_page
3487: $toolarge
3488: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3489: <br />
3490: <h1>$lt{'clic'}</h1>
3491: END
3492: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3493: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3494: $r->print('<b>'.$subject.'</b>');
3495: $r->print(&Apache::lonhtmlcommon::row_closure());
3496: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3497: $r->print('<input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" /> '.$attachmaxtext);
3498: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3499: $r->print(&Apache::lonhtmlcommon::row_closure());
3500: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3501: if ($idx) {
3502: if ($attachmenturls) {
3503: my @currold = keys(%currattach);
3504: if (@currold > 0) {
3505: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3506: foreach my $id (@currold) {
3507: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3508: $attachurl =~ m#/([^/]+)$#;
3509: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3510: }
3511: $r->print("<br />");
3512: }
3513: }
3514: }
3515: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3516: $r->print($lt{'chth'}.'<br />'."\n");
3517: foreach my $attach (@{$currnewattach}) {
3518: $attach =~ m#/([^/]+)$#;
3519: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3520: }
3521: }
3522: }
3523: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3524: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3525: $r->print(<<END);
3526: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3527: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3528: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3529: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3530: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3531: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3532: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3533: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3534: END
3535: foreach my $item (@{$currnewattach}) {
3536: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3537: }
3538: foreach my $item (@{$currdelold}) {
3539: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3540: }
3541: $r->print(<<END);
3542: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3543: </form>
3544: $end_page
3545: END
3546: return;
3547: }
3548:
3549: sub process_attachments {
3550: my ($currnewattach,$currdelold,$keepold) = @_;
3551:
3552: @{$currnewattach}=
3553: &Apache::loncommon::get_env_multiple('form.currnewattach');
3554: @{$currdelold}=
3555: &Apache::loncommon::get_env_multiple('form.deloldattach');
3556: if (exists($env{'form.delnewattach'})) {
3557: my @currdelnew =
3558: &Apache::loncommon::get_env_multiple('form.delnewattach');
3559: my @currnew = ();
3560: foreach my $newone (@{$currnewattach}) {
3561: my $delflag = 0;
3562: foreach my $item (@currdelnew) {
3563: if ($newone eq $item) {
3564: $delflag = 1;
3565: last;
3566: }
3567: }
3568: unless ($delflag) {
3569: push(@currnew, $newone);
3570: }
3571: }
3572: @{$currnewattach} = @currnew;
3573: }
3574: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3575: }
3576:
3577: sub generate_attachments_button {
3578: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3579: $numoldver,$mode,$blockblog) = @_;
3580: my $origpage = $ENV{'REQUEST_URI'};
3581: my $att=$attachnum.' '.&mt("attachments");
3582: my %lt = &Apache::lonlocal::texthash(
3583: 'clic' => 'Add/remove attachments',
3584: );
3585: my $response = (<<END);
3586: <br />
3587: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3588: <input type="button" value="$lt{'clic'}"
3589: 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);
3590: END
3591: if (!$blockblog) {
3592: $response .= 'setblogvalue();';
3593: }
3594: unless ($mode eq 'board') {
3595: $response .= 'javascript:anonchk();';
3596: }
3597: $response .= (<<ENDATTACH);
3598: this.form.submit();" />
3599: <input type="hidden" name="origpage" value="$origpage" />
3600: <input type="hidden" name="idx" value="$idx" />
3601: <input type="hidden" name="timestamp" value="$now" />
3602: <input type="hidden" name="subject" />
3603: <input type="hidden" name="comment" />
3604: <input type="hidden" name="blog" value="0" />
3605: <input type="hidden" name="discuss" value="0" />
3606: <input type="hidden" name="numoldver" value="$numoldver" />
3607: ENDATTACH
3608: if (defined($deloldattach)) {
3609: if (@{$deloldattach} > 0) {
3610: foreach my $delatt (@{$deloldattach}) {
3611: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3612: }
3613: }
3614: }
3615: if (defined($currnewattach)) {
3616: if (@{$currnewattach} > 0) {
3617: foreach my $attach (@{$currnewattach}) {
3618: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3619: }
3620: }
3621: }
3622: $response .= '</form>';
3623: return $response;
3624: }
3625:
3626: sub extract_attachments {
3627: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3628: %{$attachments}=();
3629: &get_post_attachments($attachments,$attachmenturls);
3630: foreach my $id (sort(keys(%{$attachments}))) {
3631: if (exists($$attachments{$id}{$numoldver})) {
3632: if (defined($currdelold)) {
3633: if (@{$currdelold} > 0) {
3634: unless (grep/^$id$/,@{$currdelold}) {
3635: $$currattach{$id} = $$attachments{$id}{$numoldver};
3636: }
3637: } else {
3638: $$currattach{$id} = $$attachments{$id}{$numoldver};
3639: }
3640: } else {
3641: $$currattach{$id} = $$attachments{$id}{$numoldver};
3642: }
3643: }
3644: }
3645: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3646: if (@attached == 1) {
3647: my $id = $attached[0];
3648: my $attachurl;
3649: if ($attachmenturls =~ m/^<attachment id="0">/) {
3650: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3651: } else {
3652: $attachurl = $$attachments{$id}{'filename'};
3653: }
3654: $attachurl=~m|/([^/]+)$|;
3655: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3656: $1.'</tt></a><br />';
3657: &Apache::lonnet::allowuploaded('/adm/feedback',
3658: $attachurl);
3659: } elsif (@attached > 1) {
3660: $$message.='<ol>';
3661: foreach my $attach (@attached) {
3662: my $id = $attach;
3663: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3664: my ($fname)
3665: =($attachurl=~m|/([^/]+)$|);
3666: $$message .= '<li><a href="'.$attachurl.
3667: '"><tt>'.
3668: $fname.'</tt></a></li>';
3669: &Apache::lonnet::allowuploaded('/adm/feedback',
3670: $attachurl);
3671: }
3672: $$message .= '</ol>';
3673: }
3674: }
3675:
3676: sub construct_attachmenturl {
3677: my ($currnewattach,$keepold,$symb,$idx)=@_;
3678: my $oldattachmenturl;
3679: my $newattachmenturl;
3680: my $startnum = 0;
3681: my $currver = 0;
3682: if (($env{'form.editdisc'}) && ($idx)) {
3683: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3684: $env{'course.'.$env{'request.course.id'}.'.domain'},
3685: $env{'course.'.$env{'request.course.id'}.'.num'});
3686: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3687: if ($contrib{$idx.':history'}) {
3688: if ($contrib{$idx.':history'} =~ /:/) {
3689: my @oldversions = split(/:/,$contrib{$idx.':history'});
3690: $currver = 1 + scalar(@oldversions);
3691: } else {
3692: $currver = 2;
3693: }
3694: } else {
3695: $currver = 1;
3696: }
3697: if ($oldattachmenturl) {
3698: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3699: my %attachments = ();
3700: my $prevver = $currver-1;
3701: &get_post_attachments(\%attachments,$oldattachmenturl);
3702: my $numattach = scalar(keys(%attachments));
3703: $startnum += $numattach;
3704: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3705: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3706: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3707: unless ($item eq 'filename') {
3708: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3709: }
3710: }
3711: if (grep/^$num$/,@{$keepold}) {
3712: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3713: }
3714: $newattachmenturl .= '</attachment>';
3715: }
3716: } else {
3717: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3718: unless (grep/^0$/,@{$keepold}) {
3719: $newattachmenturl .= '<post id="1">n</post>';
3720: }
3721: $newattachmenturl .= '</attachment>';
3722: $startnum ++;
3723: }
3724: }
3725: }
3726: for (my $i=0; $i<@{$currnewattach}; $i++) {
3727: my $attachnum = $startnum + $i;
3728: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3729: }
3730: return $newattachmenturl;
3731: }
3732:
3733: sub add_blog_checkbox {
3734: my ($crstype) = @_;
3735: my $checkstatus;
3736: if ($env{'form.blog'}) {
3737: $checkstatus = 'checked="checked"';
3738: }
3739: my $output = '
3740: <script type="text/javascript">
3741: function setblogvalue() {
3742: if (document.mailform.blog.checked) {
3743: document.attachment.blog.value = 1;
3744: } else {
3745: document.attachment.blog.value = 0;
3746: }
3747: }
3748: </script><br />
3749: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3750: if ($crstype eq 'Community') {
3751: $output .= &mt('Add to my public community blog');
3752: } else {
3753: $output .= &mt('Add to my public course blog');
3754: }
3755: $output .= '</label><br />'."\n";
3756: return $output;
3757: }
3758:
3759: sub has_discussion {
3760: my $resourcesref = shift;
3761: my $navmap = Apache::lonnavmaps::navmap->new();
3762: if (defined($navmap)) {
3763: my @allres=$navmap->retrieveResources();
3764: foreach my $resource (@allres) {
3765: if ($resource->hasDiscussion()) {
3766: my $ressymb = $resource->wrap_symb();
3767: if (ref($resourcesref) eq 'ARRAY') {
3768: push(@{$resourcesref}, $ressymb);
3769: }
3770: }
3771: }
3772: } else {
3773: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3774: }
3775: return;
3776: }
3777:
3778: sub sort_filter_names {
3779: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3780: if (ref($sort_types) eq 'HASH') {
3781: %{$sort_types} = (
3782: ascdate => 'Date order - oldest first',
3783: descdate => 'Date order - newest first',
3784: thread => 'Threaded',
3785: subject => 'By subject',
3786: username => 'By domain and username',
3787: lastfirst => 'By last name, first name'
3788: );
3789: }
3790: my @courseroles = qw(st in ta ep ad);
3791: if ($crstype eq 'Community') {
3792: push(@courseroles,'co');
3793: } else {
3794: push(@courseroles,'cc');
3795: }
3796: if (ref($role_types) eq 'HASH') {
3797: foreach my $role (@courseroles) {
3798: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3799: }
3800: $role_types->{'all'} = 'All roles';
3801: $role_types->{'cr'} = 'Custom role';
3802: }
3803: if (ref($status_types) eq 'HASH') {
3804: %{$status_types} = (
3805: all => 'Roles of any status',
3806: Active => 'Only active roles',
3807: Expired => 'Only past roles',
3808: Future => 'Only future roles',
3809: );
3810: }
3811: }
3812:
3813: sub handler {
3814: my $r = shift;
3815: if ($r->header_only) {
3816: &Apache::loncommon::content_type($r,'text/html');
3817: $r->send_http_header;
3818: return OK;
3819: }
3820:
3821: # --------------------------- Get query string for limited number of parameters
3822:
3823: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3824: ['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']);
3825: my $group = $env{'form.group'};
3826: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3827: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3828:
3829: my %attachmax = (
3830: text => &mt('(128 KB max size)'),
3831: num => 131072,
3832: );
3833: if ($env{'form.editdisc'}) {
3834: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
3835: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3836: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3837: my $feedurl=&Apache::lonnet::clutter($url);
3838: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3839: undef,undef,undef,$group);
3840: return OK;
3841: }
3842: }
3843: if ($env{'form.discsymb'}) {
3844: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3845: my $readkey = $symb.'_read';
3846: my $chgcount = 0;
3847: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3848: foreach my $key (keys(%env)) {
3849: if ($key =~ m/^form\.postunread_(\d+)/) {
3850: if ($readinghash{$readkey} =~ /\.$1\./) {
3851: $readinghash{$readkey} =~ s/\.$1\.//;
3852: $chgcount ++;
3853: }
3854: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3855: unless ($readinghash{$readkey} =~ /\.$1\./) {
3856: $readinghash{$readkey} .= '.'.$1.'.';
3857: $chgcount ++;
3858: }
3859: }
3860: }
3861: if ($chgcount > 0) {
3862: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3863: \%readinghash,$env{'user.domain'},$env{'user.name'});
3864: }
3865: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3866: '0','0','','',$env{'form.previous'},'','','',
3867: undef,undef,undef,$group);
3868: return OK;
3869: }
3870: if ($env{'form.allversions'}) {
3871: &Apache::loncommon::content_type($r,'text/html');
3872: &Apache::loncommon::no_cache($r);
3873: $r->send_http_header;
3874:
3875: # Breadcrumbs
3876: my $brcrum = [{'href' => '',
3877: 'text' => 'Discussion Post Versions'}];
3878:
3879: my %parms=();
3880: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3881:
3882: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
3883:
3884: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3885: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
3886: my $ressymb = &wrap_symb($symb);
3887: my $seeid;
3888: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
3889: $seeid = 1;
3890: }
3891: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
3892: if ($idx > 0) {
3893: my %messages = ();
3894: my %subjects = ();
3895: my %attachmsgs = ();
3896: my %allattachments = ();
3897: my %imsfiles = ();
3898: my ($screenname,$plainname,$showaboutme);
3899: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3900: $cdom,$cnum);
3901: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3902: }
3903: $r->print(&Apache::loncommon::end_page());
3904: return OK;
3905: }
3906: if ($env{'form.posterlist'}) {
3907: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3908: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3909: $env{'form.sortposts'});
3910: return OK;
3911: }
3912: if ($env{'form.userpick'}) {
3913: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3914: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3915: my $numpicks = @posters;
3916: my %discinfo;
3917: $discinfo{$symb.'_userpick'} = join('&',@posters);
3918: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3919: \%discinfo,$env{'user.domain'},$env{'user.name'});
3920: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3921: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3922: '',$numpicks,$group);
3923: return OK;
3924: }
3925: if ($env{'form.applysort'}) {
3926: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3927: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3928: '',$env{'form.previous'},$env{'form.sortposts'},
3929: $env{'form.rolefilter'},$env{'form.statusfilter'},
3930: $env{'form.sectionpick'},$env{'form.grouppick'},
3931: undef,$group);
3932: return OK;
3933: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3934: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3935: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3936: return OK;
3937: } elsif ($env{'form.navtime'}) {
3938: my %discinfo = ();
3939: my @resources = ();
3940: if (defined($env{'form.navmaps'})) {
3941: if ($env{'form.navmaps'} =~ /:/) {
3942: @resources = split(/:/,$env{'form.navmaps'});
3943: } else {
3944: @resources = ("$env{'form.navmaps'}");
3945: }
3946: } else {
3947: &has_discussion(\@resources);
3948: }
3949: my $numitems = @resources;
3950: my $feedurl = '/adm/navmaps';
3951: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3952: my %lt = &Apache::lonlocal::texthash(
3953: 'mnpa' => 'Marked "New" posts as read in a total of',
3954: 'robb' => 'resources/bulletin boards.',
3955: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3956: );
3957: foreach my $res (@resources) {
3958: my $ressymb=$res;
3959: &Apache::lonenc::check_decrypt(\$ressymb);
3960: my $lastkey = $ressymb.'_lastread';
3961: $discinfo{$lastkey} = $env{'form.navtime'};
3962: }
3963: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3964: if ($numitems > 0) {
3965: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3966: \%discinfo,$env{'user.domain'},$env{'user.name'});
3967: } else {
3968: $textline = "<b>$lt{'twnp'}</b>";
3969: }
3970: &Apache::loncommon::content_type($r,'text/html');
3971: $r->send_http_header;
3972: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3973: my %onload;
3974:
3975: my $start_page=
3976: &Apache::loncommon::start_page('New posts marked as read',undef,
3977: {'redirect' => [2,$feedurl],
3978: 'only_body' => 1,
3979: 'add_entries' => \%onload});
3980: my $end_page = &Apache::loncommon::end_page();
3981: $r->print (<<ENDREDIR);
3982: $start_page
3983: <img align="right" src="$logo" />
3984: $textline
3985: <form name="reldt" action="$feedurl" target="loncapaclient">
3986: </form>
3987: <br />
3988: $end_page
3989: ENDREDIR
3990: return OK;
3991: } elsif ($env{'form.modifydisp'}) {
3992: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3993: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3994: split(/_/,$env{'form.changes'});
3995: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3996: $dispchgB,$markchg,$toggchg,$feedurl);
3997: return OK;
3998: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3999: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4000: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4001: $env{'form.toggon'} || $env{'form.markread'}) {
4002: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4003: my %discinfo;
4004: # ------------------------ Modify setting for read/unread toggle for each post
4005: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4006: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4007: # --------- Modify setting for identification of 'NEW' posts in this discussion
4008: if ($env{'form.markondisp'}) {
4009: $discinfo{$symb.'_lastread'} = time;
4010: $discinfo{$symb.'_markondisp'} = 1;
4011: }
4012: if ($env{'form.markonread'}) {
4013: if ( $env{'form.previous'} > 0 ) {
4014: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4015: }
4016: $discinfo{$symb.'_markondisp'} = 0;
4017: }
4018: # --------------------------------- Modify display setting for this discussion
4019: if ($env{'form.allposts'}) {
4020: $discinfo{$symb.'_showonlyunread'} = 0;
4021: $discinfo{$symb.'_showonlyunmark'} = 0;
4022: }
4023: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4024: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4025: # ----------------------------------------------------- Mark new posts not NEW
4026: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4027: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4028: \%discinfo,$env{'user.domain'},$env{'user.name'});
4029: my $previous=$env{'form.previous'};
4030: if ($env{'form.markondisp'}) { $previous=undef; }
4031: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4032: '0','0','','',$previous,'','','','','','',$group);
4033: return OK;
4034: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4035: # ----------------------------------------------------------------- Hide/unhide
4036: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4037: my ($symb,$idx)=split(/\:\:\:/,$entry);
4038: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4039: my $ressymb = &wrap_symb($symb);
4040:
4041: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4042: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4043: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4044: '0','0','','',$env{'form.previous'},'','','','',
4045: undef,undef,$group,);
4046: return OK;
4047: }
4048:
4049: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4050: $cdom,$cnum);
4051:
4052: my $currenthidden=$contrib{'hidden'};
4053: my $currentstudenthidden=$contrib{'studenthidden'};
4054:
4055: if ($env{'form.hide'}) {
4056: $currenthidden.='.'.$idx.'.';
4057: unless ($seehidden) {
4058: $currentstudenthidden.='.'.$idx.'.';
4059: }
4060: } else {
4061: $currenthidden=~s/\.$idx\.//g;
4062: }
4063: my %newhash=('hidden' => $currenthidden);
4064: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4065: $newhash{'studenthidden'} = $currentstudenthidden;
4066: }
4067: if ($env{'form.hide'}) {
4068: my $changelast = 0;
4069: my $newlast;
4070: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4071: if ($changelast) {
4072: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4073: $cdom,$cnum);
4074: }
4075: }
4076: my $result;
4077: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4078: $cdom,$cnum) eq 'ok') {
4079: my $prefix=$symb.':'.$idx.':';
4080: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4081: '^'.$prefix);
4082: my ($totallikes,$totalunlikes);
4083: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4084: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4085: }
4086: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4087: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4088: }
4089: if ($totallikes || $totalunlikes) {
4090: my ($chglikes,$chgunlikes,$context);
4091: if ($env{'form.hide'}) {
4092: $chglikes = -1 * $totallikes;
4093: $chgunlikes = -1 * $totalunlikes;
4094: $context = 'hide';
4095: } else {
4096: $chglikes = $totallikes;
4097: $chgunlikes = $totalunlikes;
4098: $context = 'unhide';
4099: }
4100: &storediscussionlikes($chglikes,$chgunlikes,
4101: $contrib{$idx.':sendername'},
4102: $contrib{$idx.':senderdomain'},
4103: $env{'request.course.id'},
4104: $context);
4105:
4106: }
4107: $result = &mt('Changed discussion status');
4108: } else {
4109: $result = &mt('Discussion status unchanged');
4110: }
4111: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4112: $env{'form.previous'},undef,undef,undef,
4113: undef,undef,undef,$group);
4114: return OK;
4115: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4116: # ----------------------------------------------------------------- Like/unlike
4117: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4118: my ($symb,$idx)=split(/\:\:\:/,$entry);
4119: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4120: my $result;
4121: if ($idx > 0) {
4122: my $realsymb = &get_realsymb($symb);
4123: my $status='OPEN';
4124: if ($Apache::lonhomework::parsing_a_problem ||
4125: $Apache::lonhomework::parsing_a_task) {
4126: $status=$Apache::inputtags::status[-1];
4127: }
4128: if (&discussion_vote_available($status,$realsymb)) {
4129: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4130: $cdom,$cnum);
4131: my $ownpost;
4132: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4133: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4134: $ownpost = 1;
4135: }
4136: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4137: $result = &mt('Vote not registered.').' ';
4138: }
4139: if ($ownpost) {
4140: $result .= &mt('No voting for your own posts.');
4141: } elsif ($contrib{$idx.':hidden'}) {
4142: $result .= &mt('No voting for hidden posts.');
4143: } elsif ($contrib{$idx.':deleted'}) {
4144: $result .= &mt('No voting for deleted posts.');
4145: } else {
4146: #
4147: # Likes and unlikes are in db-file "disclikes" of the course
4148: # The prefix is the $symb to identify the resource discussion,
4149: # and the $idx to identify the entry
4150: #
4151: my $prefix=$symb.':'.$idx.':';
4152: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4153: '^'.$prefix);
4154:
4155: # Get current like or unlike status for the $idx for this user.
4156: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4157: my ($userlikes,$userunlikes);
4158: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4159: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4160: $userlikes = 1;
4161: }
4162: }
4163: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4164: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4165: $userunlikes = 1;
4166: }
4167: }
4168: # Get the current "likes" count
4169: my $likescount=$likes{$prefix.'likes'};
4170: # Find out if they already voted
4171: # Users cannot like a post twice, or unlike it twice.
4172: # They can change their mind, though.
4173: my $alreadyflag=0;
4174: my $votetype;
4175: if ($env{'form.like'}) {
4176: if ($userlikes) {
4177: $alreadyflag=1;
4178: } elsif ($userunlikes) {
4179: delete($likes{$prefix.'unlikers'}{$thisuser});
4180: $votetype = 'switch';
4181: $likescount++;
4182: } else {
4183: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4184: $likes{$prefix.'likers'}{$thisuser} = 1;
4185: } else {
4186: $likes{$prefix.'likers'} = {$thisuser => 1};
4187: }
4188: $likescount++;
4189: }
4190: } else {
4191: if ($userunlikes) {
4192: $alreadyflag=1;
4193: } elsif ($userlikes) {
4194: delete($likes{$prefix.'likers'}{$thisuser});
4195: $votetype = 'switch';
4196: $likescount--;
4197: } else {
4198: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4199: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4200: } else {
4201: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4202: }
4203: $likescount--;
4204: }
4205: }
4206: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4207: if ($alreadyflag) {
4208: if ($env{'form.like'}) {
4209: $result= &mt("'Like' already registered");
4210: } else {
4211: $result= &mt("'Unlike' already registered");
4212: }
4213: } else {
4214: my %newhash=($prefix.'likes' => $likescount,
4215: $prefix.'likers' => $likes{$prefix.'likers'},
4216: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4217: # Store data in db-file "disclikes"
4218: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4219: # Also store with the person who posted the liked/unliked entry
4220: my ($chglike,$chgunlike);
4221: if ($env{'form.like'}) {
4222: if ($votetype eq 'switch') {
4223: $chglike = 0;
4224: $chgunlike = -1;
4225: } else {
4226: $chglike = 1;
4227: $chgunlike = 0;
4228: }
4229: &storediscussionlikes($chglike,$chgunlike,
4230: $contrib{$idx.':sendername'},
4231: $contrib{$idx.':senderdomain'},
4232: $env{'request.course.id'},'like');
4233: $result=&mt("Registered 'Like'");
4234: } else {
4235: if ($votetype eq 'switch') {
4236: $chglike = -1;
4237: $chgunlike = 0;
4238: } else {
4239: $chglike = 0;
4240: $chgunlike = 1;
4241: }
4242: &storediscussionlikes($chglike,$chgunlike,
4243: $contrib{$idx.':sendername'},
4244: $contrib{$idx.':senderdomain'},
4245: $env{'request.course.id'},'unlike');
4246: $result=&mt("Registered 'Unlike'");
4247: }
4248: } else {
4249: # Oops, something went wrong
4250: $result=&mt("Failed to register vote");
4251: }
4252: }
4253: }
4254: } else {
4255: $result=&mt('Voting unavailable for this discussion');
4256: }
4257: } else {
4258: $result=&mt('Invalid post number');
4259: }
4260: &redirect_back($r,$feedurl,$result.'<br />',
4261: '0','0','','',$env{'form.previous'},undef,undef,undef,
4262: undef,undef,undef,$group);
4263: return OK;
4264: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4265: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4266: if ($env{'form.cmd'} eq 'threadedoff') {
4267: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4268: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4269: &Apache::lonnet::del('environment',['threadeddiscussion']);
4270: &Apache::lonnet::delenv('environment.threadeddiscussion');
4271: } else {
4272: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4273: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4274: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4275: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4276: }
4277: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4278: '0','0','','',$env{'form.previous'},undef,undef,undef,
4279: undef,undef,undef,$group);
4280: return OK;
4281: } elsif ($env{'form.deldisc'}) {
4282: # --------------------------------------------------------------- Hide for good
4283: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4284: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4285: my $ressymb=&wrap_symb($symb);
4286:
4287: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4288: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4289: '0','0','','',$env{'form.previous'},'','','','',
4290: undef,undef,$group);
4291: return OK;
4292: }
4293: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4294: $cdom,$cnum);
4295: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4296: if ($changelast) {
4297: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4298: $cdom,$cnum);
4299: }
4300: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4301:
4302: my $result;
4303: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4304: $cdom,$cnum) eq 'ok') {
4305: $result = &mt('Changed discussion status');
4306: my $prefix=$symb.':'.$idx.':';
4307: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4308: '^'.$prefix);
4309: my ($totallikes,$totalunlikes);
4310: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4311: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4312: }
4313: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4314: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4315: }
4316: if ($totallikes || $totalunlikes) {
4317: my $chglikes = -1 * $totallikes;
4318: my $chgunlikes = -1 * $totalunlikes;
4319: &storediscussionlikes($chglikes,$chgunlikes,
4320: $contrib{$idx.':sendername'},
4321: $contrib{$idx.':senderdomain'},
4322: $env{'request.course.id'},
4323: 'delete');
4324: }
4325: } else {
4326: $result = &mt('Discussion status unchanged');
4327: }
4328: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4329: $env{'form.previous'},undef,undef,undef,
4330: undef,undef,undef,$group);
4331: return OK;
4332: } elsif ($env{'form.preview'}) {
4333: # -------------------------------------------------------- User wants a preview
4334: &show_preview($r);
4335: return OK;
4336: } elsif ($env{'form.attach'}) {
4337: # -------------------------------------------------------- Work on attachments
4338: &Apache::loncommon::content_type($r,'text/html');
4339: $r->send_http_header;
4340: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4341: my (@currnewattach,@currdelold,@keepold,$toolarge);
4342: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4343: if (exists($env{'form.addnewattach.filename'})) {
4344: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4345: my $subdir = 'feedback/'.$env{'form.timestamp'};
4346: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4347: push(@currnewattach, $newattachment);
4348: } else {
4349: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4350: }
4351: }
4352: my $attachmenturls;
4353: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4354: my $idx = $env{'form.idx'};
4355: if ($idx) {
4356: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4357: $cdom,$cnum);
4358: $attachmenturls = $contrib{$idx.':attachmenturl'};
4359: }
4360: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4361: $attachmenturls,$attachmax{'text'},$toolarge);
4362: return OK;
4363: } elsif ($env{'form.export'}) {
4364: &Apache::loncommon::content_type($r,'text/html');
4365: $r->send_http_header;
4366: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4367: my $mode='board';
4368: my $status='OPEN';
4369: my $previous=$env{'form.previous'};
4370: if ($feedurl =~ /$LONCAPA::assess_re/) {
4371: $mode='problem';
4372: $status=$Apache::inputtags::status[-1];
4373: }
4374:
4375: my $discussion = &list_discussion($mode,$status,$symb);
4376: my $start_page =
4377: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4378: my $end_page =
4379: &Apache::loncommon::end_page();
4380: $r->print($start_page.$discussion.$end_page);
4381: return OK;
4382:
4383: } elsif ($env{'form.undeleteall'}) {
4384: &Apache::loncommon::content_type($r,'text/html');
4385: $r->send_http_header;
4386: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4387: my $ressymb=&wrap_symb($symb);
4388: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4389: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4390: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4391: $cdom,$cnum);
4392: $contrib{'deleted'} =~ s/^\.//;
4393: $contrib{'deleted'} =~ s/\.$//;
4394: if ($contrib{'deleted'} ne '') {
4395: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4396: $cdom,$cnum) eq 'ok') {
4397: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4398: my @ids = split(/\.\./,$contrib{'deleted'});
4399: my (%chglikes,%chgunlikes);
4400: foreach my $idx (@ids) {
4401: my $uname = $contrib{$idx.':sendername'};
4402: my $udom = $contrib{$idx.':senderdomain'};
4403: my ($totallikes,$totalunlikes);
4404: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4405: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4406: }
4407: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4408: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4409: }
4410: if ($totallikes || $totalunlikes) {
4411: $chglikes{$uname.':'.$udom} += $totallikes;
4412: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4413: }
4414: }
4415: foreach my $user (keys(%chglikes)) {
4416: my ($uname,$udom) = split(/:/,$user);
4417: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4418: $uname,$udom,$env{'request.course.id'},
4419: 'undelete');
4420: }
4421: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")));
4422: } else {
4423: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1));
4424: }
4425: } else {
4426: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1));
4427: }
4428: $r->print("<br /><a href='$feedurl'>".&mt("Return and reload")."</a>");
4429: }
4430: $r->print(&Apache::loncommon::end_page());
4431: return OK;
4432: } else {
4433: # ------------------------------------------------------------- Normal feedback
4434: my $feedurl=$env{'form.postdata'};
4435: $feedurl=~s/^https?\:\/\///;
4436: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4437: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4438: $feedurl=~s/\?.+$//;
4439:
4440: my $symb;
4441: if ($env{'form.replydisc'}) {
4442: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4443: } elsif ($env{'form.editdisc'}) {
4444: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4445: } elsif ($env{'form.origpage'}) {
4446: $symb="";
4447: } elsif ($env{'form.sendmessageonly'}) {
4448: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4449: } else {
4450: $symb=&Apache::lonnet::symbread($feedurl);
4451: }
4452: unless ($symb) {
4453: $symb=$env{'form.symb'};
4454: }
4455: if (defined($symb)) {
4456: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4457: } else {
4458: # backward compatibility (bulletin boards used to be 'wrapped')
4459: &Apache::lonenc::check_decrypt(\$feedurl);
4460: &dewrapper(\$feedurl);
4461: }
4462: my $goahead=1;
4463: if ($feedurl=~/$LONCAPA::assess_re/) {
4464: unless ($symb) { $goahead=0; }
4465: }
4466: if (!$goahead) {
4467: # Ambiguous Problem Resource
4468: $r->internal_redirect('/adm/ambiguous');
4469: return OK;
4470: }
4471: # Go ahead with feedback, no ambiguous reference
4472: unless (
4473: (
4474: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4475: )
4476: ||
4477: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4478: ||
4479: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4480: ) {
4481: &Apache::loncommon::content_type($r,'text/html');
4482: $r->send_http_header;
4483: # Unable to give feedback
4484: &Apache::lonenc::check_encrypt(\$feedurl);
4485: &no_redirect_back($r,$feedurl);
4486: return OK;
4487: }
4488: # --------------------------------------------------- Print login screen header
4489: unless ($env{'form.sendit'}) {
4490: &Apache::lonenc::check_encrypt(\$feedurl);
4491: &Apache::loncommon::content_type($r,'text/html');
4492: $r->send_http_header;
4493: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4494: my ($blocked,$blocktext) =
4495: &Apache::loncommon::blocking_status('boards');
4496: if ($blocked) {
4497: $r->print(&blocked_reply_or_edit($blocktext));
4498: return OK;
4499: }
4500: }
4501: my $options=&screen_header($feedurl,$symb,$group);
4502: if ($options) {
4503: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4504: } else {
4505: &fail_redirect($r,$feedurl);
4506: }
4507: return OK;
4508: }
4509:
4510: # Get previous user input
4511: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4512: $symb,$env{'user.name'},$env{'user.domain'},
4513: $env{'request.course.id'});
4514:
4515: # Get output from resource
4516: &Apache::lonenc::check_encrypt(\$feedurl);
4517: my $usersaw=&resource_output($feedurl);
4518:
4519: # Get resource answer (need to allow student to view grades for this to work)
4520: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4521: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4522: my $useranswer=
4523: &Apache::loncommon::get_student_answers(
4524: $usersymb,$env{'user.name'},$env{'user.domain'},
4525: $env{'request.course.id'});
4526: &Apache::lonnet::delenv('allowed.vgr');
4527: # Get attachments, if any, and not too large
4528: my $attachmenturl='';
4529: my $toolarge='';
4530: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4531: ($env{'form.replydisc'})) {
4532: my ($symb,$idx);
4533: if ($env{'form.replydisc'}) {
4534: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4535: } elsif ($env{'form.editdisc'}) {
4536: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4537: } elsif ($env{'form.origpage'}) {
4538: $symb = $env{'form.symb'};
4539: }
4540: &Apache::lonenc::check_decrypt(\$symb);
4541: my @currnewattach = ();
4542: my @deloldattach = ();
4543: my @keepold = ();
4544: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4545: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4546: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4547: } elsif ($env{'form.attachment.filename'}) {
4548: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4549: my $now = time;
4550: my $subdir = 'feedback/'.$now;
4551: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4552: } else {
4553: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4554: }
4555: }
4556: # Filter HTML out of message (could be nasty)
4557: my $override;
4558: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4559: $override = 1;
4560: }
4561: my $message=&clear_out_html($env{'form.comment'},$override);
4562:
4563: # Assemble email
4564: my ($email,$citations)=&assemble_email($message,$prevattempts,
4565: $usersaw,$useranswer);
4566:
4567: # Who gets this?
4568: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4569:
4570: # Actually send mail
4571: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4572: $feedurl,$email,$citations,
4573: $attachmenturl,$usersymb,%to);
4574:
4575: # Discussion? Store that.
4576: my $numpost=0;
4577: if ( ($env{'form.discuss'} ne ''
4578: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4579: || $env{'form.anondiscuss'} ne '') {
4580: my $subject = &clear_out_html($env{'form.subject'});
4581: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4582: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4583: $subject,$group);
4584: $numpost++;
4585: }
4586:
4587: # Add to blog?
4588:
4589: my $blog='';
4590: if ($env{'form.blog'}) {
4591: my $subject = &clear_out_html($env{'form.subject'});
4592: $status.=&Apache::lonrss::addentry($env{'user.name'},
4593: $env{'user.domain'},
4594: 'CourseBlog_'.$env{'request.course.id'},
4595: $subject,$message,$feedurl,'public');
4596: if (&Apache::loncommon::course_type() eq 'Community') {
4597: $blog='<br />'.&mt('Added to my community blog').'<br />';
4598: } else {
4599: $blog='<br />'.&mt('Added to my course blog').'<br />';
4600: }
4601: }
4602:
4603: # Receipt screen and redirect back to where came from
4604: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4605: }
4606: return OK;
4607: }
4608:
4609: sub blocked_reply_or_edit {
4610: my ($blocktext) = @_;
4611: return
4612: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4613: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4614: &mt('Back to previous page').
4615: &Apache::loncommon::end_page();
4616: }
4617:
4618: sub wrap_symb {
4619: my ($ressymb)=@_;
4620: if ($ressymb =~ /bulletin___\d+___/) {
4621: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4622: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4623: }
4624: }
4625: return $ressymb;
4626: }
4627:
4628: sub dewrapper {
4629: my ($feedurl)=@_;
4630: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4631: $$feedurl=~s|^/adm/wrapper||;
4632: }
4633: }
4634:
4635: sub get_feedurl {
4636: my ($symb)=@_;
4637: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4638: my $feedurl = &Apache::lonnet::clutter($url);
4639: &dewrapper(\$feedurl);
4640: return $feedurl;
4641: }
4642:
4643: sub get_feedurl_and_clean_symb {
4644: my ($symb)=@_;
4645: &Apache::lonenc::check_decrypt(\$symb);
4646: # backward compatibility (bulletin boards used to be 'wrapped')
4647: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4648: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4649: }
4650: my $feedurl = &get_feedurl($symb);
4651: return ($symb,$feedurl);
4652: }
4653:
4654: sub editing_allowed {
4655: my ($postid,$group) = @_;
4656: $postid = &unescape($postid);
4657: my $can_edit = 0;
4658: if ($group ne '') {
4659: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4660: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4661: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4662: if (&check_group_priv($group,'egp') eq 'ok') {
4663: $can_edit = 1;
4664: }
4665: return $can_edit;
4666: }
4667: }
4668: my $cid = $env{'request.course.id'};
4669: my $role = (split(/\./,$env{'request.role'}))[0];
4670: my $section = $env{'request.course.sec'};
4671: my $allow_editing_config =
4672: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4673: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4674: $can_edit = 1;
4675: } else {
4676: foreach my $editor (split(/,/,$allow_editing_config)) {
4677: my ($editor_role,$editor_sec) = split(/:/,$editor);
4678: if ($editor_role eq $role
4679: && defined($editor_sec)
4680: && defined($section)
4681: && $editor_sec eq $section) {
4682: $can_edit = 1;
4683: last;
4684: }
4685: if ($editor_role eq $role
4686: && !defined($editor_sec)) {
4687: $can_edit = 1;
4688: }
4689: }
4690: }
4691: return $can_edit;
4692: }
4693:
4694: sub check_group_priv {
4695: my ($group,$grp_priv) = @_;
4696: foreach my $priv ('mdg','vcg') {
4697: my $checkcourse = $env{'request.course.id'}.
4698: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4699: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4700: return 'ok';
4701: }
4702: }
4703: if ($grp_priv && $group ne '') {
4704: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4705: return 'ok';
4706: }
4707: }
4708: return '';
4709: }
4710:
4711: sub group_args {
4712: my ($group) = @_;
4713: if ($group eq '') { return ''; }
4714: my $extra_args = '&group='.$group;
4715: if (exists($env{'form.ref'})) {
4716: $extra_args .= '&ref='.$env{'form.ref'};
4717: }
4718: return $extra_args;
4719: }
4720:
4721: sub get_resource_title {
4722: my ($symb,$feedurl) = @_;
4723: my ($restitle,$plainurl);
4724: if (defined($symb)) {
4725: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4726: $restitle = &Apache::lonnet::gettitle($plain_symb);
4727: }
4728: if (defined($feedurl)) {
4729: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4730: }
4731: if (!defined($restitle)) {
4732: if (defined($feedurl)) {
4733: $restitle = &Apache::lonnet::gettitle($plainurl);
4734: }
4735: }
4736: if ($plainurl ne $feedurl) {
4737: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4738: if ($plain_filename eq $restitle) {
4739: $restitle = &mt('Untitled resource');
4740: }
4741: }
4742: if ($restitle eq '') {
4743: $restitle = &mt('Untitled resource');
4744: }
4745: return $restitle;
4746: }
4747:
4748: 1;
4749: __END__
4750:
4751:
4752: =pod
4753:
4754: =head1 NAME
4755:
4756: Apache::lonfeedback.pm
4757:
4758: =head1 SYNOPSIS
4759:
4760: Handles feedback from students to instructors and system administrators.
4761:
4762: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4763:
4764: Used by lonmsg.pm.
4765:
4766: This is part of the LearningOnline Network with CAPA project
4767: described at http://www.lon-capa.org.
4768:
4769: =head1 OVERVIEW
4770:
4771: None
4772:
4773: =head1 SUBROUTINES
4774:
4775: =over
4776:
4777: =item discussion_open()
4778:
4779: =item discussion_visible()
4780:
4781: =item discussion_vote_available()
4782:
4783: =item get_realsymb()
4784:
4785: =item list_discussion()
4786:
4787: =item can_see_hidden()
4788:
4789: =item discussion_link()
4790:
4791: =item send_feedback_link()
4792:
4793: =item send_message_link()
4794:
4795: =item action_links_bar()
4796:
4797: =item postingform_display()
4798:
4799: =item build_posting_display
4800:
4801: =item filter_regexp()
4802:
4803: =item get_post_contents()
4804:
4805: =item replicate_attachments()
4806:
4807: =item mail_screen()
4808:
4809: =item print_display_options()
4810:
4811: =item print_sortfilter_options()
4812:
4813: =item print_showposters()
4814:
4815: =item get_post_versions()
4816:
4817: =item get_post_attachments()
4818:
4819: =item fail_redirect()
4820:
4821: =item redirect_back()
4822:
4823: =item no_redirect_back()
4824:
4825: =item screen_header()
4826:
4827: =item resource_output()
4828:
4829: =item clear_out_html()
4830:
4831: =item assemble_email()
4832:
4833: =item feedback_available()
4834:
4835: =item send_msg()
4836:
4837: =item adddiscuss()
4838:
4839: =item get_discussion_info()
4840:
4841: =item show_preview()
4842:
4843: =item newline_to_br()
4844:
4845: =item tidy_html()
4846:
4847: =item generate_preview_button()
4848:
4849: =item modify_attachments()
4850:
4851: =item process_attachments()
4852:
4853: =item generate_attachments_button()
4854:
4855: =item extract_attachments()
4856:
4857: =item construct_attachmenturl()
4858:
4859: =item add_blog_checkbox()
4860:
4861: =item has_discussion()
4862:
4863: =item sort_filter_names()
4864:
4865: =item handler()
4866:
4867: =item blocked_reply_or_edit()
4868:
4869: =item wrap_symb()
4870:
4871: =item dewrapper()
4872:
4873: =item get_feedurl()
4874:
4875: =item get_feedurl_and_clean_symb()
4876:
4877: =item editing_allowed()
4878:
4879: =item check_group_priv()
4880:
4881: =item group_args()
4882:
4883: =item get_resource_title()
4884:
4885: =back
4886:
4887: =cut
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