1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.370.2.5.2.2 2022/01/19 18:08:38 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 Archive::Zip qw( :ERROR_CODES );
48: use LONCAPA qw(:DEFAULT :match);
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: my ($nofooter,$nodisclink,$nofdbklink);
122: if (not &discussion_visible($status)) {
123: if ($mode ne 'board') {
124: ($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
125: if ($nofooter || $nofdbklink) {
126: return '<br />';
127: } else {
128: &Apache::lonenc::check_encrypt(\$ressymb);
129: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
130: }
131: }
132: }
133: if ($group ne '' && $mode eq 'board') {
134: if (&check_group_priv($group,'vgb') ne 'ok') {
135: return '';
136: }
137: }
138:
139: unless ($outputtarget eq 'export') {
140: ($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
141: }
142:
143: unless ($nofooter) {
144: my ($blocked,$blocktext) =
145: &Apache::loncommon::blocking_status('boards');
146: if ($blocked) {
147: my $footer = '<br /><div class="LC_feedback_link">';
148: unless ($nodisclink) {
149: $footer .= '<span class="LC_feedback_link">'.$blocktext.'</span>';
150: }
151: &Apache::lonenc::check_encrypt(\$ressymb);
152: if ($mode ne 'board') {
153: unless ($nofdbklink) {
154: $footer.=&send_message_link($ressymb);
155: }
156: }
157: $footer.='</div>';
158: return $footer;
159: }
160: }
161:
162: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
163: my $discussiononly=0;
164: if ($mode eq 'board') { $discussiononly=1; }
165: unless ($env{'request.course.id'}) { return ''; }
166: my $crs='/'.$env{'request.course.id'};
167: my $cid=$env{'request.course.id'};
168: if ($env{'request.course.sec'}) {
169: $crs.='_'.$env{'request.course.sec'};
170: }
171: $crs=~s/\_/\//g;
172: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
173: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
174: && ($ressymb=~/$LONCAPA::assess_re/));
175:
176: my %usernamesort = ();
177: my %namesort =();
178: my %subjectsort = ();
179:
180: # Get discussion display settings for this discussion
181: my $lastkey = $ressymb.'_lastread';
182: my $showkey = $ressymb.'_showonlyunread';
183: my $markkey = $ressymb.'_showonlyunmark',
184: my $visitkey = $ressymb.'_visit';
185: my $ondispkey = $ressymb.'_markondisp';
186: my $userpickkey = $ressymb.'_userpick';
187: my $toggkey = $ressymb.'_readtoggle';
188: my $readkey = $ressymb.'_read';
189: $ressymb=$encsymb;
190: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
191: my %discinfo = ();
192: my $showonlyunread = 0;
193: my $showunmark = 0;
194: my $markondisp = 0;
195: my $prevread = 0;
196: my $previous = 0;
197: my $visit = 0;
198: my $newpostsflag = 0;
199: my @posters = split(/\&/,$dischash{$userpickkey});
200:
201: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
202: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
203: my $sortposts = $env{'form.sortposts'};
204: my $statusfilter = $env{'form.statusfilter'};
205: my @sectionpick = split(/,/,$env{'form.sectionpick'});
206: my @grouppick = split(/,/,$env{'form.grouppick'});
207: my @rolefilter = split(/,/,$env{'form.rolefilter'});
208:
209: my $totposters = $env{'form.totposters'};
210: $previous = $env{'form.previous'};
211: if ($previous > 0) {
212: $prevread = $previous;
213: } elsif (defined($dischash{$lastkey})) {
214: unless ($dischash{$lastkey} eq '') {
215: $prevread = $dischash{$lastkey};
216: }
217: }
218:
219: my $cdom = $env{'course.'.$cid.'.domain'};
220: my $cnum = $env{'course.'.$cid.'.num'};
221: my $crstype = &Apache::loncommon::course_type();
222:
223: # Get information about students and non-students in course for filtering display of posts
224: my %roleshash = ();
225: my %roleinfo = ();
226: my ($classgroups,$studentgroups);
227: if ($env{'form.rolefilter'}) {
228: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
229: foreach my $rolekey (keys(%roleshash)) {
230: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
231: if ($role =~ /^cr/) {
232: $role = 'cr';
233: }
234: my ($end,$start) = split(/:/,$roleshash{$rolekey});
235: my $now = time;
236: my $status = 'Active';
237: if (($now < $start) || ($end > 0 && $now > $end)) {
238: $status = 'Expired';
239: }
240: if ($uname && $udom) {
241: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
242: }
243: }
244: my ($classlist,$keylist) =
245: &Apache::loncoursedata::get_classlist($cdom,$cnum);
246: my $sec_index = &Apache::loncoursedata::CL_SECTION();
247: my $status_index = &Apache::loncoursedata::CL_STATUS();
248: while (my ($student,$data) = each %$classlist) {
249: my ($section,$status) = ($data->[$sec_index],
250: $data->[$status_index]);
251: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
252: }
253: ($classgroups,$studentgroups) =
254: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
255: $cdom,$cnum);
256: }
257:
258: # Get discussion display default settings for user
259: if ($env{'environment.discdisplay'} eq 'unread') {
260: $showonlyunread = 1;
261: }
262: if ($env{'environment.discmarkread'} eq 'ondisp') {
263: $markondisp = 1;
264: }
265:
266: # Override user's default if user specified display setting for this discussion
267: if (defined($dischash{$ondispkey})) {
268: unless ($dischash{$ondispkey} eq '') {
269: $markondisp = $dischash{$ondispkey};
270: }
271: }
272: if ($markondisp) {
273: $discinfo{$lastkey} = time;
274: }
275:
276: if (defined($dischash{$showkey})) {
277: unless ($dischash{$showkey} eq '') {
278: $showonlyunread = $dischash{$showkey};
279: }
280: }
281:
282: if (defined($dischash{$markkey})) {
283: unless ($dischash{$markkey} eq '') {
284: $showunmark = $dischash{$markkey};
285: }
286: }
287:
288: if (defined($dischash{$visitkey})) {
289: unless ($dischash{$visitkey} eq '') {
290: $visit = $dischash{$visitkey};
291: }
292: }
293: $visit ++;
294:
295: my $seeid;
296: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
297: $seeid = 1;
298: }
299: my $seehidden = &can_see_hidden($mode,$ressymb,undef,$group,$cdom,$cnum,$crs);
300:
301: # Is voting on discussions available
302: my $realsymb = &get_realsymb($ressymb);
303: my $canvote = &discussion_vote_available($status,$realsymb);
304:
305: my @discussionitems=();
306: my %shown = ();
307: my @posteridentity=();
308:
309: my $current=0;
310: my $visible=0;
311: my @depth=();
312: my @replies = ();
313: my %alldiscussion=();
314: my %imsitems=();
315: my %imsfiles=();
316: my %notshown = ();
317: my %newitem = ();
318: my $maxdepth=0;
319: my %anonhash=();
320: my $anoncnt=0;
321:
322: my $now = time;
323: $discinfo{$visitkey} = $visit;
324:
325: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
326: &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);
327:
328: my $discussion='';
329: my $manifestfile;
330: my $manifestok=0;
331: my $tempexport;
332: my $imsresources;
333: my $copyresult;
334:
335: my $function = &Apache::loncommon::get_users_function();
336: my %lt = &Apache::lonlocal::texthash(
337: 'cuse' => 'My settings for this discussion',
338: 'allposts' => 'All posts',
339: 'unread' => 'New posts only',
340: 'unmark' => 'Unread only',
341: 'ondisp' => 'Once displayed',
342: 'onmark' => 'Once marked not NEW',
343: 'toggoff' => 'Off',
344: 'toggon' => 'On',
345: 'disa' => 'Posts to be displayed',
346: 'npce' => 'Posts cease to be marked "NEW"',
347: 'epcb' => 'Each post can be toggled read/unread',
348: 'chgt' => 'Change',
349: 'disp' => 'Display',
350: 'nolo' => 'Not new',
351: 'togg' => 'Toggle read/unread',
352: 'aner' => 'An error occurred opening the manifest file.',
353: 'difo' => 'Discussion for',
354: 'aerr' => 'An error occurred opening the export file for posting',
355: 'discussions' => 'DISCUSSIONS'
356: );
357: my %js_lt = &Apache::lonlocal::texthash(
358: 'aysu' => 'Are you sure you want to delete this post?',
359: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
360: 'bwco' => 'but will continue to be visible to your instructor',
361: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
362: );
363: &js_escape(\%js_lt);
364:
365: my $currdisp = $lt{'allposts'};
366: my $currmark = $lt{'onmark'};
367: my $currtogg = $lt{'toggoff'};
368: my $dispchange = $lt{'unread'};
369: my $markchange = $lt{'ondisp'};
370: my $toggchange = $lt{'toggon'};
371: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
372: my $displinkA = 'onlyunread';
373: my $displinkB = 'onlyunmark';
374: my $marklink = 'markondisp';
375: my $togglink = 'toggon';
376:
377: if ($markondisp) {
378: $currmark = $lt{'ondisp'};
379: $markchange = $lt{'onmark'};
380: $marklink = 'markonread';
381: }
382:
383: if ($showonlyunread) {
384: $currdisp = $lt{'unread'};
385: $dispchange = $lt{'allposts'};
386: $displinkA = 'allposts';
387: }
388:
389: if ($showunmark) {
390: $currdisp = $lt{'unmark'};
391: $dispchange = $lt{'unmark'};
392: $displinkA='allposts';
393: $displinkB='onlyunread';
394: $showonlyunread = 0;
395: }
396:
397: if ($dischash{$toggkey}) {
398: $currtogg = $lt{'toggon'};
399: $toggchange = $lt{'toggoff'};
400: $togglink = 'toggoff';
401: }
402:
403: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
404:
405: if ($newpostsflag) {
406: $chglink .= '&previous='.$prevread;
407: }
408: $chglink.=&group_args($group);
409:
410: if ($visible) {
411: # Print the discusssion
412: if ($outputtarget eq 'tex') {
413: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
414: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
415: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
416: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
417: } elsif ($outputtarget eq 'export') {
418: # Create temporary directory if this is an export
419: my $now = time;
420: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
421: $tempexport = $$imsextras{'tempexport'};
422: if (!-e $tempexport) {
423: mkdir($tempexport,0700);
424: }
425: $tempexport .= '/'.$$imsextras{'count'};
426: if (!-e $tempexport) {
427: mkdir($tempexport,0700);
428: }
429: } else {
430: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
431: if (!-e $tempexport) {
432: mkdir($tempexport,0700);
433: }
434: $tempexport .= '/'.$now;
435: if (!-e $tempexport) {
436: mkdir($tempexport,0700);
437: }
438: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
439: }
440: if (!-e $tempexport) {
441: mkdir($tempexport,0700);
442: }
443: # open manifest file
444: my $manifest = '/imsmanifest.xml';
445: my $manifestfilename = $tempexport.$manifest;
446: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
447: $manifestok=1;
448: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
449: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
450: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
451: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
452: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
453: <organizations default="$ressymb">
454: <organization identifier="$ressymb">
455: <title>$lt{'difo'} $ressymb</title>\n|;
456: } else {
457: $discussion .= $lt{'aner'}.'<br />';
458: }
459: } else {
460: my $colspan=$maxdepth+1;
461: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
462: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
463: var symbparm = symb+':::'+idx
464: var prevparm = ""
465: if (newflag == 1) {
466: prevparm = "&previous="+previous
467: }
468: if (caller == 'studentdelete') {
469: if (confirm("$js_lt{'aysu'}\\n$js_lt{'dpwn'},\\n$js_lt{'bwco'}")) {
470: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
471: }
472: } else {
473: if (caller == 'seeiddelete') {
474: if (confirm("$js_lt{'aysu'}\\n$js_lt{'depo'}")) {
475: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
476: }
477: }
478: }
479: }
480: |);
481: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
482: "\n".'<table width="100%" class="LC_discussion">';
483: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
484: $newpostsflag,$group,
485: $prevread,$markondisp,$seehidden);
486: my $escsymb=&escape($ressymb);
487: my $numhidden = keys(%notshown);
488: if ($numhidden > 0) {
489: my $colspan = $maxdepth+1;
490: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">';
491: my $href = '/adm/feedback?allposts=1&symb='.$escsymb;
492: if ($newpostsflag) {
493: $href .= '&previous='.$prevread;
494: }
495: $href .= &group_args($group);
496: if ($showunmark) {
497: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously marked read',
498: '<a href="'.$href.'">','</a>',$numhidden);
499: } else {
500: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously viewed',
501: '<a href="'.$href.'">','</a>',$numhidden);
502: }
503: $discussion .= '<br/></td></tr>';
504: }
505: }
506:
507: # Choose sort mechanism
508: my @showposts = ();
509: if ($sortposts eq 'descdate') {
510: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
511: } elsif ($sortposts eq 'thread') {
512: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
513: } elsif ($sortposts eq 'subject') {
514: foreach my $key (sort(keys(%subjectsort))) {
515: push(@showposts, @{$subjectsort{$key}});
516: }
517: } elsif ($sortposts eq 'username') {
518: foreach my $domain (sort(keys(%usernamesort))) {
519: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
520: push(@showposts, @{$usernamesort{$domain}{$key}});
521: }
522: }
523: } elsif ($sortposts eq 'lastfirst') {
524: foreach my $last (sort(keys(%namesort))) {
525: foreach my $key (sort(keys(%{$namesort{$last}}))) {
526: push(@showposts, @{$namesort{$last}{$key}});
527: }
528: }
529: } else {
530: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
531: }
532: my $currdepth = 0;
533: my $firstidx = $alldiscussion{$showposts[0]};
534: foreach my $post (@showposts) {
535: unless (($sortposts eq 'thread') ||
536: (($sortposts eq '') && (!$env{'environment.unthreadeddiscussion'})) ||
537: ($outputtarget eq 'export')) {
538: $alldiscussion{$post} = $post;
539: }
540: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
541: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
542: $discussion.="\n<tr>";
543: }
544: my $thisdepth=$depth[$alldiscussion{$post}];
545: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
546: for (1..$thisdepth) {
547: $discussion.='<td> </td>';
548: }
549: }
550: my $colspan=$maxdepth-$thisdepth+1;
551: if ($outputtarget eq 'tex') {
552: #cleanup block
553: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
554: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
555: my $threadinsert='';
556: if ($thisdepth > 0) {
557: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
558: }
559: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
560: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
561:
562: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
563: $discussion.=$discussionitems[$alldiscussion{$post}];
564: } elsif ($outputtarget eq 'export') {
565: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
566: if ($manifestok) {
567: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
568: print $manifestfile ' </item>'."\n";
569: }
570: $currdepth = $depth[$alldiscussion{$post}];
571: print $manifestfile "\n".
572: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
573: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
574: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
575: $imsresources .= "\n".
576: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
577: '<file href="'.$postfilename.'">'."\n".
578: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
579: '</resource>';
580: }
581: my $postingfile;
582: my $postingfilename = $tempexport.'/'.$postfilename;
583: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
584: print $postingfile '<html><head><title>'.&mt('Discussion Post').'</title></head><body>'.
585: $imsitems{$alldiscussion{$post}}{'title'}.' '.
586: $imsitems{$alldiscussion{$post}}{'sender'}.
587: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
588: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
589: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
590: close($postingfile);
591: } else {
592: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
593: }
594: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
595: } else {
596: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
597: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
598: '</td></tr>';
599: }
600: }
601: }
602: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
603: my $colspan=$maxdepth+1;
604: $discussion .= <<END;
605: <tr>
606: <td colspan="$colspan">
607: <table width="100%">
608: <tr>
609: <td class="LC_disc_action_left">
610: <font size="-1"><b>$lt{'cuse'}</b>:
611: END
612: if ($newpostsflag) {
613: $discussion .=
614: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
615: if ($dischash{$toggkey}) {
616: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
617: }
618: } else {
619: if ($dischash{$toggkey}) {
620: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
621: } else {
622: $discussion .=
623: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
624: }
625: }
626: $discussion .= <<END;
627: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
628: </td>
629: END
630: if ($sortposts) {
631: my %sort_types = ();
632: my %role_types = ();
633: my %status_types = ();
634: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
635:
636: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
637: if (defined($env{'form.totposters'})) {
638: $discussion .= &mt('Posts by').':';
639: if ($totposters > 0) {
640: foreach my $poster (@posters) {
641: $discussion .= ' '.$poster.',';
642: }
643: $discussion =~ s/,$//;
644: } else {
645: $discussion .= &mt('None selected');
646: }
647: } else {
648: my $filterchoice ='';
649: if (@sectionpick > 0) {
650: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
651: $filterchoice .= ' ';
652: }
653: if (@grouppick > 0) {
654: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
655: $filterchoice .= ' ';
656: }
657: if (@rolefilter > 0) {
658: $filterchoice .= '<i>'.&mt('roles').'</i>-';
659: foreach my $role (@rolefilter) {
660: $filterchoice .= ' '.$role_types{$role}.',';
661: }
662: $filterchoice =~ s/,$//;
663: $filterchoice .= '<br />'.(' ' x8);
664: }
665: if ($statusfilter) {
666: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
667: }
668: if ($filterchoice) {
669: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
670: }
671: }
672: $discussion .= '</font></td>';
673:
674: }
675: if ($dischash{$toggkey}) {
676: my $storebutton = &mt('Save read/unread changes');
677: $discussion.='<td align="right">'.
678: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
679: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
680: ' onclick="this.form.submit();" />'."\n".
681: '</td>';
682: }
683: $discussion .= (<<END);
684: </tr>
685: </table>
686: </td>
687: </tr>
688: END
689: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
690: $newpostsflag,$group,
691: $prevread,$markondisp,$seehidden);
692: $discussion .= "</table></form>\n";
693: }
694: if ($outputtarget eq 'export') {
695: if ($manifestok) {
696: while ($currdepth > 0) {
697: print $manifestfile " </item>\n";
698: $currdepth --;
699: }
700: print $manifestfile qq|
701: </organization>
702: </organizations>
703: <resources>
704: $imsresources
705: </resources>
706: </manifest>
707: |;
708: close($manifestfile);
709: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
710: $discussion = $copyresult;
711: } else {
712:
713: #Create zip file in prtspool
714:
715: if (($env{'user.name'} =~ /^$match_username$/)
716: && ($env{'user.domain'} =~ /^$match_domain$/)) {
717: my $now = time();
718: my $imszipfile = '/prtspool/'.
719: join('_',$env{'user.name'},$env{'user.domain'},$now).
720: '_'.rand(1000000000).'.zip';
721: my $zip = Archive::Zip->new();
722: $zip->addTree($tempexport);
723: my $imszip = '/home/httpd/'.$imszipfile;
724: if ($zip->writeToFileNamed($imszip) == AZ_OK) {
725: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
726: '<a href="'.$imszipfile.'">','</a>').'<br />';
727: } else {
728: $discussion .= &mt('Failed to create zip file').'<br />';
729: }
730: if ($copyresult) {
731: $discussion .= '<span class="LC_error">'.
732: &mt('The following errors occurred during export:').
733: '</span><br />'.$copyresult;
734: }
735: } else {
736: $discussion .= '<p class="LC_error">'.
737: &mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating the zip file.').'</p>';
738: }
739: }
740: } else {
741: $discussion .= '<p class="LC_error">'.
742: &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.').'</p>';
743: }
744: return $discussion;
745: }
746: }
747: if ($discussiononly) {
748: my $now = time;
749: my $attachnum = 0;
750: my $currnewattach = [];
751: my $currdelold = [];
752: my $comment = '';
753: my $subject = '';
754: if ($env{'form.origpage'}) {
755: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
756: $subject = &unescape($env{'form.subject'});
757: $comment = &unescape($env{'form.comment'});
758: my @keepold = ();
759: &process_attachments($currnewattach,$currdelold,\@keepold);
760: if (@{$currnewattach} > 0) {
761: $attachnum += @{$currnewattach};
762: }
763: }
764: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
765: if (($group ne '') && ($mode eq 'board')) {
766: if ((&check_group_priv($group,'pgd') eq 'ok') &&
767: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
768: $discussion .=
769: &postingform_display($mode,$ressymb,$now,$subject,
770: $comment,$outputtarget,$attachnum,
771: $currnewattach,$currdelold,
772: $group,$crstype);
773: }
774: } else {
775: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
776: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
777:
778: $discussion.=
779: &postingform_display($mode,$ressymb,$now,$subject,
780: $comment,$outputtarget,$attachnum,
781: $currnewattach,$currdelold,'',$crstype);
782: } else {
783: $discussion.= '<span class="LC_feedback_link">'.
784: &mt('This discussion is closed.').'</span>';
785: }
786: }
787: }
788: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
789: $discussion.= '<span class="LC_feedback_link">'.
790: &mt('This discussion is closed.').'</span>';
791: }
792: } elsif ($outputtarget ne 'tex') {
793: unless ($nofooter) {
794: $discussion.='<div class="LC_feedback_link">';
795: unless ($nodisclink) {
796: if (&discussion_open($status) &&
797: &Apache::lonnet::allowed('pch',
798: $env{'request.course.id'}.
799: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
800: $discussion.= &send_feedback_link($ressymb);
801: if ($env{'request.role.adv'}) {
802: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
803: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
804: if (defined($close) && $close ne '' && $close < time) {
805: if ($canvote eq 'notended') {
806: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
807: &Apache::lonnet::plaintext('st',$crstype));
808: } else {
809: $discussion .= ' '.&mt('(Closed for [_1] roles)',
810: &Apache::lonnet::plaintext('st',$crstype));
811: }
812: }
813: }
814: } else {
815: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
816: }
817: }
818: unless ($nofdbklink) {
819: $discussion.= &send_message_link($ressymb);
820: }
821: $discussion.='</div>';
822: }
823: }
824: return $discussion;
825: }
826:
827: sub check_menucoll {
828: my ($nofooter,$nodisclink,$nofdbklink);
829: my ($menucoll,$deeplinkmenu,$menuref) = &Apache::loncommon::menucoll_in_effect();
830: if ($menucoll) {
831: if (ref($menuref) eq 'HASH') {
832: if ($menuref->{'foot'} eq 'n') {
833: $nofooter = 1;
834: } else {
835: unless ($menuref->{'disc'}) {
836: $nodisclink = 1;
837: }
838: unless ($menuref->{'fdbk'}) {
839: $nofdbklink = 1;
840: }
841: }
842: }
843: }
844: return ($nofooter,$nodisclink,$nofdbklink);
845: }
846:
847: sub can_see_hidden {
848: my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
849: my $seehidden;
850: if ($env{'request.course.id'}) {
851: unless ($cdom ne '' && $cnum ne '') {
852: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
853: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
854: }
855: if ($crs eq '') {
856: $crs = '/'.$env{'request.course.id'};
857: if ($env{'request.course.sec'}) {
858: $crs.='_'.$env{'request.course.sec'};
859: }
860: $crs=~s{_}{/}g;
861: }
862: if ($mode eq '') {
863: $mode='board';
864: if ($feedurl =~ /$LONCAPA::assess_re/) {
865: $mode='problem';
866: }
867: }
868: if (($group ne '') && ($mode eq 'board') &&
869: ($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
870: if (&check_group_priv($group,'dgp') eq 'ok') {
871: $seehidden = 1;
872: }
873: } else {
874: $seehidden=&Apache::lonnet::allowed('rin',$crs);
875: }
876: }
877: return $seehidden;
878: }
879:
880: sub discussion_link {
881: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
882: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
883: if ($flag) { $link .= '&previous='.$prev; }
884: if ($adds) { $link .= $adds; }
885: my $width=600;
886: my $height=600;
887: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
888: $width=300;
889: $height=200;
890: }
891: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
892: }
893:
894:
895: sub send_feedback_link {
896: my ($ressymb) = @_;
897: return '<span class="LC_feedback_link">'.
898: &discussion_link($ressymb,
899: '<img alt="" class="LC_noBorder" src="'.
900: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
901: '" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
902: 'replydisc').
903: '</span>';
904: }
905:
906: sub send_message_link {
907: my ($ressymb) = @_;
908: my $output = '<span class="LC_message_link">'.
909: &discussion_link($ressymb,
910: '<img alt="" class="LC_noBorder" src="'.
911: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
912: '" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
913: 'sendmessageonly').
914: '</span>';
915: return $output;
916: }
917:
918: sub action_links_bar {
919: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
920: $seehidden) = @_;
921: my $discussion = '<tr><td colspan="'.$colspan.'">'.
922: '<table width="100%"><tr>'.
923: '<td class="LC_disc_action_left">';
924: my $escsymb=&escape($ressymb);
925: if ($visible) {
926: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
927: if ($newpostsflag) {
928: $discussion .= '&previous='.$prevread;
929: }
930: $discussion .= &group_args($group);
931: $discussion .='">'.&mt('Threaded View').'</a> '.
932: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
933: if ($newpostsflag) {
934: $discussion .= '&previous='.$prevread;
935: }
936: $discussion .= &group_args($group);
937: $discussion .='">'.&mt('Chronological View').'</a> ';
938:
939: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
940: if ($newpostsflag) {
941: $otherviewurl .= '&previous='.$prevread;
942: }
943: $otherviewurl .= &group_args($group);
944: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
945: $discussion .= '<br />';
946: }
947: $discussion .='<a href="/adm/feedback?export='.$escsymb;
948: if ($newpostsflag) {
949: $discussion .= '&previous='.$prevread;
950: }
951: $discussion .= &group_args($group);
952: $discussion .= '">'.&mt('Export').'</a>';
953: if ($seehidden) {
954: $discussion .= ' ';
955: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
956: if ($newpostsflag) {
957: $discussion .= '&previous='.$prevread;
958: }
959: $discussion .= &group_args($group);
960: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
961: }
962: $discussion.='</td>';
963: if ($newpostsflag) {
964: if (!$markondisp) {
965: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
966: $discussion .= &group_args($group);
967: $discussion .= '">'.
968: &mt('My general preferences on what is marked as NEW').
969: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
970: $discussion .= &group_args($group);
971: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
972: } else {
973: $discussion .= '<td> </td>';
974: }
975: } else {
976: $discussion .= '<td> </td>';
977: }
978: $discussion .= '</tr></table></td></tr>';
979: return $discussion;
980: }
981:
982: sub postingform_display {
983: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
984: $currnewattach,$currdelold,$group,$crstype) = @_;
985: my $newattachmsg;
986: my %lt = &Apache::lonlocal::texthash(
987: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
988: 'title' => 'Title',
989: 'podi' => 'Post Discussion',
990: 'poan' => 'Post Anonymous Discussion',
991: 'newa' => 'New attachments',
992: );
993: if ($crstype eq 'Community') {
994: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
995: }
996: my ($postingform,$textareaclass);
997: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
998: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
999: $textareaclass = 'class="LC_richDefaultOff"';
1000: if ($env{'request.course.id'}) {
1001: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1002: undef($textareaclass);
1003: }
1004: }
1005: }
1006: $postingform .= (<<ENDDISCUSS);
1007: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
1008: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
1009: <input type="hidden" name="sendit" value="true" />
1010: <input type="hidden" name="timestamp" value="$now" />
1011: <a name="newpost"></a>
1012: <font size="1">$lt{'note'}</font><br />
1013: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
1014: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
1015: ENDDISCUSS
1016: if ($env{'form.origpage'}) {
1017: $postingform .= '<input type="hidden" name="origpage" value="'.
1018: $env{'form.origpage'}.'" />'."\n";
1019: foreach my $att (@{$currnewattach}) {
1020: $postingform .= '<input type="hidden" name="currnewattach" '.
1021: 'value="'.$att.'" />'."\n";
1022: }
1023: }
1024: if (exists($env{'form.ref'})) {
1025: $postingform .= '<input type="hidden" name="ref" value="'.
1026: $env{'form.ref'}.'" />';
1027: }
1028: if ($group ne '') {
1029: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
1030: }
1031: my $blockblog = &Apache::loncommon::blocking_status('blogs');
1032: if (!$blockblog) {
1033: $postingform .= &add_blog_checkbox($crstype);
1034: }
1035: $postingform .= "</form>\n";
1036: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
1037: $now,$currnewattach,
1038: $currdelold,'',$mode,
1039: $blockblog);
1040: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
1041: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
1042: if (@{$currnewattach} > 1) {
1043: $newattachmsg .= '<ol>';
1044: foreach my $item (@{$currnewattach}) {
1045: $item =~ m#.*/([^/]+)$#;
1046: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1047: }
1048: $newattachmsg .= '</ol>'."\n";
1049: } else {
1050: $$currnewattach[0] =~ m#.*/([^/]+)$#;
1051: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
1052: }
1053: }
1054: $postingform .= $newattachmsg;
1055: $postingform .= &generate_preview_button();
1056: return $postingform;
1057: }
1058:
1059: sub build_posting_display {
1060: 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) = @_;
1061: my @original=();
1062: my @index=();
1063: my $skip_group_check = 0;
1064: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1065: my $escsymb=&escape($ressymb);
1066: # These are the discussion contributions
1067: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1068: $env{'course.'.$env{'request.course.id'}.'.domain'},
1069: $env{'course.'.$env{'request.course.id'}.'.num'});
1070: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1071: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1072: if ($seeid || $canvote) {
1073: # And these are the likes/unlikes
1074: %likes=&Apache::lonnet::dump('disclikes',
1075: $env{'course.'.$env{'request.course.id'}.'.domain'},
1076: $env{'course.'.$env{'request.course.id'}.'.num'},
1077: '^'.$symb.':');
1078: # Array with likes to figure out averages, etc.
1079: @theselikes=();
1080: # Hashes containing likes and unlikes for this user.
1081: %userlikes=();
1082: %userunlikes=();
1083: }
1084: # Is the user allowed to see the real name behind anonymous postings?
1085: my $see_anonymous =
1086: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1087:
1088: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1089: $skip_group_check = 1;
1090: }
1091: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1092: my (%deletions,%hiddens);
1093: if ($contrib{'deleted'}) {
1094: my $deleted = $contrib{'deleted'};
1095: $deleted =~ s/^\.//;
1096: $deleted =~ s/\.$//;
1097: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1098: }
1099: if ($contrib{'hidden'}) {
1100: my $hidden = $contrib{'hidden'};
1101: $hidden =~ s/^\.//;
1102: $hidden =~ s/\.$//;
1103: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1104: }
1105: # Versions if store/restore are used to actually store the messages.
1106: if ($contrib{'version'}) {
1107: my $oldest = $contrib{'1:timestamp'};
1108: if ($prevread eq '0') {
1109: $prevread = $oldest-1;
1110: }
1111: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1112: if ($sortposts) {
1113: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1114: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1115: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1116: }
1117: my %votestyle;
1118: if ($seeid || $canvote) {
1119: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1120: for (my $id=1;$id<=$contrib{'version'};$id++) {
1121: my $idx=$id;
1122: next if ($contrib{$idx.':deleted'});
1123: next if ($contrib{$idx.':hidden'});
1124: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1125: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1126: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1127: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1128: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1129: $userlikes{$idx} = 1;
1130: }
1131: }
1132: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1133: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1134: $userunlikes{$idx} = 1;
1135: }
1136: }
1137: }
1138: }
1139: }
1140: # Figure out average likes and standard deviation if there are enough
1141: # discussions to warrant that
1142: my $ave=0;
1143: my $stddev=10000;
1144: if ($#theselikes>1) {
1145: my $sum=0;
1146: my $num=$#theselikes+1;
1147: foreach my $thislike (@theselikes) {
1148: $sum+=$thislike;
1149: }
1150: $ave=$sum/$num;
1151: my $sumsq=0;
1152: foreach my $thislike (@theselikes) {
1153: $sumsq+=($thislike-$ave)*($thislike-$ave);
1154: }
1155: $stddev=sqrt($sumsq/$num);
1156: }
1157: # Now we know the average likes $ave and the standard deviation $stddev
1158: # Get the boundaries for markup
1159: $oneplus=$ave+$stddev;
1160: $twoplus=$ave+2.*$stddev;
1161: $oneminus=$ave-$stddev;
1162: $twominus=$ave-2.*$stddev;
1163: if ($#theselikes>1) {
1164: foreach my $class ('twoplus','oneplus','zero','oneminus','twominus') {
1165: my $fontstyle = $env{'course.'.$env{'request.course.id'}.'.discussion_post_fonts_'.$class};
1166: if ($fontstyle ne '') {
1167: my ($size,$weight,$style,$other) = split(/,/,$fontstyle);
1168: if ($size ne '') {
1169: $votestyle{$class} .= 'font-size: '.$size.';';
1170: }
1171: if ($weight ne '') {
1172: $votestyle{$class} .= 'font-weight: '.$weight.';';
1173: }
1174: if ($style ne '') {
1175: $votestyle{$class} .= 'font-style: '.$style.';';
1176: }
1177: if ($other ne '') {
1178: $votestyle{$class} .= $other;
1179: }
1180: if ($votestyle{$class} ne '') {
1181: $votestyle{$class} = 'style="'.$votestyle{$class}.'"';
1182: }
1183: }
1184: }
1185: }
1186: }
1187: #
1188: # This is now the real loop. Go through all entries, pick up what we need
1189: #
1190: for (my $id=1;$id<=$contrib{'version'};$id++) {
1191: my $idx=$id;
1192: next if ($contrib{$idx.':deleted'});
1193: next if ($contrib{$idx.':hidden'});
1194: # 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
1195: # previous edits, but it counts as one entry
1196: my $posttime = $contrib{$idx.':timestamp'};
1197: if ($prevread <= $posttime) {
1198: $$newpostsflag = 1;
1199: }
1200: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1201: my $origindex='0.';
1202: my $numoldver=0;
1203: if ($contrib{$idx.':replyto'}) {
1204: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1205: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1206: # this is a follow-up message
1207: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1208: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1209: $origindex=$index[$contrib{$idx.':replyto'}];
1210: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1211: } else {
1212: $original[$idx]=0;
1213: $$depth[$idx]=0;
1214: }
1215: } else {
1216: # this is an original message
1217: $original[$idx]=0;
1218: $$depth[$idx]=0;
1219: }
1220: if ($$replies[$$depth[$idx]]) {
1221: $$replies[$$depth[$idx]]++;
1222: } else {
1223: $$replies[$$depth[$idx]]=1;
1224: }
1225: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1226: $$visible++;
1227: if ($contrib{$idx.':history'}) {
1228: if ($contrib{$idx.':history'} =~ /:/) {
1229: my @oldversions = split(/:/,$contrib{$idx.':history'});
1230: $numoldver = @oldversions;
1231: } else {
1232: $numoldver = 1;
1233: }
1234: }
1235: $$current = $numoldver;
1236: my %messages = ();
1237: my %subjects = ();
1238: my %attachtxt = ();
1239: my %allattachments = ();
1240: my ($screenname,$plainname,$showaboutme);
1241: my $sender = &mt('Anonymous');
1242: # Anonymous users getting number within a discussion
1243: # Since idx is in static order, this should give the same sequence every time.
1244: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1245: unless ($$anonhash{$key}) {
1246: $anoncnt++;
1247: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1248: }
1249: my ($message,$subject,$vgrlink,$ctlink);
1250: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1251:
1252:
1253: # Set up for sorting by subject
1254: unless ($outputtarget eq 'export') {
1255: $message=$messages{$numoldver};
1256: $message.=$attachtxt{$numoldver};
1257: $subject=$subjects{$numoldver};
1258: if ($message) {
1259: if ($hiddens{$idx}) {
1260: $message='<font color="#888888">'.$message.'</font>';
1261: if ($studenthidden) {
1262: $message .='<br /><br />Deleted by poster (student).';
1263: }
1264: }
1265:
1266: if ($subject eq '') {
1267: if (defined($$subjectsort{'__No subject'})) {
1268: push(@{$$subjectsort{'__No subject'}}, $idx);
1269: } else {
1270: @{$$subjectsort{'__No subject'}} = ("$idx");
1271: }
1272: } else {
1273: if (defined($$subjectsort{$subject})) {
1274: push(@{$$subjectsort{$subject}}, $idx);
1275: } else {
1276: @{$$subjectsort{$subject}} = ("$idx");
1277: }
1278: }
1279: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1280: if ($showaboutme) {
1281: $sender = &Apache::loncommon::aboutmewrapper(
1282: $plainname,
1283: $contrib{$idx.':sendername'},
1284: $contrib{$idx.':senderdomain'});
1285: } else {
1286: $sender = $plainname;
1287: }
1288: if ($see_anonymous) {
1289: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1290: $contrib{$idx.':senderdomain'}.')';
1291: }
1292: $sender = '<b>'.$sender.'</b>';
1293: if ($contrib{$idx.':anonymous'}) {
1294: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1295: $screenname;
1296: }
1297: if ($see_anonymous) {
1298: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1299: }
1300: # Set up for sorting by domain, then username
1301: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1302: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1303: }
1304: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1305: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1306: } else {
1307: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1308: }
1309: # Set up for sorting by last name, then first name
1310: my %names = &Apache::lonnet::get('environment',
1311: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1312: ,$contrib{$idx.':sendername'});
1313: my $lastname = $names{'lastname'};
1314: my $firstname = $names{'firstname'};
1315: if ($lastname eq '') {
1316: $lastname = '_';
1317: }
1318: if ($firstname eq '') {
1319: $firstname = '_';
1320: }
1321: unless (defined($$namesort{$lastname})) {
1322: %{$$namesort{$lastname}} = ();
1323: }
1324: if (defined($$namesort{$lastname}{$firstname})) {
1325: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1326: } else {
1327: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1328: }
1329: if ($outputtarget ne 'tex') {
1330: # Add karma stars
1331: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1332: for (my $i=1;$i<=$karma;$i++) {
1333: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1334: }
1335: # Can people edit this?
1336: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1337: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1338: $sender.=' '.
1339: &discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1340: unless ($seehidden) {
1341: my $grpargs = &group_args($group);
1342: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1343: $sender .= '">'.&mt('Delete').'</a>';
1344: }
1345: }
1346: }
1347: if ($seehidden) {
1348: if ($hiddens{$idx}) {
1349: unless ($studenthidden) {
1350: $sender.=' '.
1351: &discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1352: }
1353: } else {
1354: $sender.=' '.
1355: &discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1356: }
1357: my $grpargs = &group_args($group);
1358: $sender.=
1359: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1360: $sender .= &mt('Delete').'</a>';
1361: }
1362: }
1363: } else {
1364: if ($screenname) {
1365: $sender='<i>'.$screenname.'</i>';
1366: } else {
1367: $sender='<i>'.$$anonhash{$key}.'</i>';
1368: }
1369: $sender = '<b>'.$sender.'</b>';
1370: # Set up for sorting by domain, then username for anonymous
1371: unless (defined($$usernamesort{'__anon'})) {
1372: %{$$usernamesort{'__anon'}} = ();
1373: }
1374: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1375: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1376: } else {
1377: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1378: }
1379: # Set up for sorting by last name, then first name for anonymous
1380: unless (defined($$namesort{'__anon'})) {
1381: %{$$namesort{'__anon'}} = ();
1382: }
1383: if (defined($$namesort{'__anon'}{'__anon'})) {
1384: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1385: } else {
1386: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1387: }
1388: }
1389: if ($outputtarget ne 'tex') {
1390: if (&discussion_open($status)) {
1391: if (($group ne '') &&
1392: (&check_group_priv($group,'pgd') eq 'ok')) {
1393: $sender.=' '.
1394: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1395: } elsif (&Apache::lonnet::allowed('pch',
1396: $env{'request.course.id'}.
1397: ($env{'request.course.sec'}?'/'.
1398: $env{'request.course.sec'}:''))) {
1399: $sender.=' '.
1400: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1401: }
1402: }
1403: if ($viewgrades) {
1404: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1405: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1406: }
1407: if ($$dischash{$readkey}=~/\.$idx\./) {
1408: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1409: } else {
1410: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1411: }
1412: }
1413: }
1414: #figure out at what position this needs to print
1415: }
1416: if ($outputtarget eq 'export' || $message) {
1417: my $thisindex=$idx;
1418: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1419: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1420: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1421: }
1422: $$alldiscussion{$thisindex}=$idx;
1423: $$shown{$idx} = 0;
1424: $index[$idx]=$thisindex;
1425: }
1426: if ($outputtarget eq 'export') {
1427: %{$$imsitems{$idx}} = ();
1428: $$imsitems{$idx}{'isvisible'}='true';
1429: if ($hiddens{$idx}) {
1430: $$imsitems{$idx}{'isvisible'}='false';
1431: }
1432: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1433: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1434: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1435: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1436: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1437: $contrib{$idx.':sendername'}.':'.
1438: $contrib{$idx.':senderdomain'}.')';
1439: $$imsitems{$idx}{'isanonymous'}='false';
1440: if ($contrib{$idx.':anonymous'}) {
1441: $$imsitems{$idx}{'isanonymous'}='true';
1442: }
1443: $$imsitems{$idx}{'currversion'}=$numoldver;
1444: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1445: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1446: $$shown{$idx} = 1;
1447: }
1448: } else {
1449: if ($message) {
1450: my $spansize = 2;
1451: my ($uname,$udom);
1452: if ($showonlyunread && $prevread > $posttime) {
1453: $$notshown{$idx} = 1;
1454: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1455: $$notshown{$idx} = 1;
1456: } else {
1457: # apply filters
1458: $uname = $contrib{$idx.':sendername'};
1459: $udom = $contrib{$idx.':senderdomain'};
1460: my $poster = $uname.':'.$udom;
1461: if ($env{'form.totposters'} ne '') {
1462: if ($totposters == 0) {
1463: $$shown{$idx} = 0;
1464: } elsif ($totposters > 0) {
1465: if (grep/^$poster$/,@{$posters}) {
1466: $$shown{$idx} = 1;
1467: }
1468: }
1469: } elsif ($sortposts) {
1470: if ($skiptest) {
1471: $$shown{$idx} = 1;
1472: } else {
1473: foreach my $role (@{$$roleinfo{$poster}}) {
1474: if ($role =~ /^cc:/) {
1475: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1476: if ($role =~ /$cc_regexp/) {
1477: $$shown{$idx} = 1;
1478: last;
1479: }
1480: } elsif ($role =~ /^$rolematch$/) {
1481: $$shown{$idx} = 1;
1482: last;
1483: }
1484: }
1485: }
1486: if ($$shown{$idx} && !$skip_group_check) {
1487: my $showflag = 0;
1488: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1489: foreach my $grp (@{$grouppick}) {
1490: if (grep/^\Q$grp\E$/,
1491: keys(%{$$classgroups{$poster}{active}})) {
1492: $showflag = 1;
1493: last;
1494: }
1495: }
1496: }
1497: if ($showflag) {
1498: $$shown{$idx} = 1;
1499: } else {
1500: $$shown{$idx} = 0;
1501: }
1502: }
1503: } else {
1504: $$shown{$idx} = 1;
1505: }
1506: }
1507: unless ($$notshown{$idx} == 1) {
1508: if ($prevread > 0 && $prevread <= $posttime) {
1509: $$newitem{$idx} = 1;
1510: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1511: } else {
1512: $$newitem{$idx} = 0;
1513: }
1514: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1515: $sender.' '.$vgrlink.' ('.
1516: &Apache::lonlocal::locallocaltime($posttime).')';
1517: if ($$dischash{$toggkey}) {
1518: $$discussionitems[$idx].=' '.$ctlink;
1519: }
1520: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1521: my $likestyle;
1522: if ($seeid || $canvote) {
1523: # Figure out size based on likes
1524: my $class = 'zero';
1525: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1526: if ($thislikes>$twoplus) {
1527: $class = 'twoplus';
1528: } elsif ($thislikes>$oneplus) {
1529: $class = 'oneplus';
1530: }
1531: if ($thislikes<$twominus) {
1532: $class = 'twominus';
1533: } elsif ($thislikes<$oneminus) {
1534: $class = 'oneminus';
1535: }
1536: $likestyle = $votestyle{$class};
1537: }
1538: # Actually glue in the message itself
1539: $$discussionitems[$idx].= '<br /><blockquote>'.
1540: "<div $likestyle>".
1541: $message.
1542: '</div></blockquote>';
1543: if ($canvote) {
1544: my $ownpost;
1545: if (($uname eq $env{'user.name'}) &&
1546: ($udom eq $env{'user.domain'})) {
1547: $ownpost = 1;
1548: }
1549: # Put in the like and unlike buttons
1550: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1551: my $novote;
1552: if ($ownpost) {
1553: $novote = &mt('No voting for your own posts.');
1554: } else {
1555: $novote = &mt('No voting for hidden posts.');
1556: }
1557: &html_escape(\$novote);
1558: $$discussionitems[$idx].=
1559: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1560: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1561: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1562:
1563: } else {
1564: if ($userlikes{$idx}) {
1565: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1566: } else {
1567: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1568: }
1569: if ($userunlikes{$idx}) {
1570: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1571: } else {
1572: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1573: }
1574: }
1575: }
1576: if ($seeid || $canvote) {
1577: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1578: if ($thislikes>0) {
1579: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1580: } elsif ($thislikes<0) {
1581: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1582: }
1583: }
1584: # If there is any history to this post, inform the reader
1585: if ($contrib{$idx.':history'}) {
1586: my @postversions = ();
1587: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1588: if ($seehidden) {
1589: $$discussionitems[$idx] .= ' '.
1590: &discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1591: }
1592: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1593: if ($contrib{$idx.':history'} =~ m/:/) {
1594: @postversions = split(/:/,$contrib{$idx.':history'});
1595: } else {
1596: @postversions = ("$contrib{$idx.':history'}");
1597: }
1598: for (my $i=0; $i<@postversions; $i++) {
1599: my $version = $i+1;
1600: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1601: }
1602: }
1603: # end of unless ($$notshown ...)
1604: }
1605: # end of if ($message) ...
1606: }
1607: # end of the else-branch of target being export
1608: }
1609: # end of unless hidden or deleted
1610: }
1611: # end of the loop over all discussion entries
1612: }
1613: # end of "if there actually are any discussions
1614: }
1615: # end of subroutine "build_posting_display"
1616: }
1617:
1618: sub filter_regexp {
1619: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1620: my ($roleregexp,$secregexp,$statusregexp);
1621: my $skiptest = 1;
1622: if (@{$rolefilter} > 0) {
1623: my @okrolefilter = ();
1624: foreach my $role (@{$rolefilter}) {
1625: unless ($role eq '') {
1626: push(@okrolefilter, $role);
1627: }
1628: }
1629: if (@okrolefilter > 0) {
1630: if (grep/^all$/,@okrolefilter) {
1631: $roleregexp='[^:]+';
1632: } else {
1633: if (@okrolefilter == 1) {
1634: $roleregexp=$okrolefilter[0];
1635: } else {
1636: $roleregexp='('.join('|',@okrolefilter).')';
1637: }
1638: $skiptest = 0;
1639: }
1640: }
1641: }
1642: if (@{$sectionpick} > 0) {
1643: my @oksectionpick = ();
1644: foreach my $sec (@{$sectionpick}) {
1645: unless ($sec eq '') {
1646: push(@oksectionpick, $sec);
1647: }
1648: }
1649: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1650: if (@oksectionpick == 1) {
1651: $secregexp = $oksectionpick[0];
1652: } else {
1653: $secregexp .= '('.join('|',@oksectionpick).')';
1654: }
1655: $skiptest = 0;
1656: } else {
1657: $secregexp .= '[^:]*';
1658: }
1659: }
1660:
1661: if (defined($statusfilter) && $statusfilter ne '') {
1662: if ($statusfilter eq 'all') {
1663: $statusregexp = '[^:]+';
1664: } else {
1665: $statusregexp = $statusfilter;
1666: $skiptest = 0;
1667: }
1668: }
1669: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1670: }
1671:
1672:
1673: sub get_post_contents {
1674: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1675: my $discussion = '';
1676: my $start=$numver;
1677: my $end=$numver + 1;
1678: %{$$imsfiles{$idx}}=();
1679: if ($type eq 'allversions') {
1680: unless($seehidden) {
1681: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1682: return $discussion;
1683: }
1684: }
1685: # $$screenname=&Apache::loncommon::screenname(
1686: # $$contrib{$idx.':sendername'},
1687: # $$contrib{$idx.':senderdomain'});
1688: $$plainname=&Apache::loncommon::nickname(
1689: $$contrib{$idx.':sendername'},
1690: $$contrib{$idx.':senderdomain'});
1691: $$screenname=$$contrib{$idx.':screenname'};
1692: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1693: $$contrib{$idx.':senderdomain'},
1694: 'aboutme');
1695: my $sender = $$plainname;
1696: if ($$showaboutme) {
1697: $sender = &Apache::loncommon::aboutmewrapper(
1698: $$plainname,
1699: $$contrib{$idx.':sendername'},
1700: $$contrib{$idx.':senderdomain'});
1701: }
1702: if ($seeid) {
1703: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1704: $$contrib{$idx.':senderdomain'}.')';
1705: }
1706: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1707: my @postversions = ();
1708: if ($type eq 'allversions' || $type eq 'export') {
1709: $start = 0;
1710: if ($$contrib{$idx.':history'}) {
1711: @postversions = split(/:/,$$contrib{$idx.':history'});
1712: }
1713: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1714: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1715: push(@postversions,$$contrib{$idx.':timestamp'});
1716: $end = @postversions;
1717: } else {
1718: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1719: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1720: }
1721:
1722: if ($$contrib{$idx.':anonymous'}) {
1723: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1724: }
1725: if ($type eq 'allversions') {
1726: $discussion=('<b>'.$sender.'</b><br /><ul>');
1727: }
1728: for (my $i=$start; $i<$end; $i++) {
1729: my ($timesent,$attachmsg);
1730: my %currattach = ();
1731: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1732: unless (&contains_block_html($messages->{$i})) {
1733: &newline_to_br(\$messages->{$i});
1734: }
1735: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1736: $$subjects{$i}=~s/\n/\<br \/\>/g;
1737: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1738: if ($attachmenturls) {
1739: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1740: }
1741: if ($type eq 'export') {
1742: $$imsfiles{$idx}{$i} = '';
1743: if ($attachmsg) {
1744: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1745: foreach my $key (sort(keys(%currattach))) {
1746: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1747: my $fname = $1.$3.'/'.$4;
1748: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1749: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1750: }
1751: }
1752: }
1753: } else {
1754: if ($attachmsg) {
1755: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1756: } else {
1757: $$attachtxt{$i} = '';
1758: }
1759: }
1760: if ($type eq 'allversions') {
1761: $discussion.= <<"END";
1762: <li><b>$$subjects{$i}</b>, $timesent<br />
1763: $$messages{$i}<br />
1764: $$attachtxt{$i}</li>
1765: END
1766: }
1767: }
1768: if ($type eq 'allversions') {
1769: $discussion.='</ul>';
1770: return $discussion;
1771: } else {
1772: return;
1773: }
1774: }
1775:
1776: sub replicate_attachments {
1777: my ($attachrefs,$tempexport) = @_;
1778: my $response;
1779: foreach my $id (keys(%{$attachrefs})) {
1780: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1781: my $path = $tempexport;
1782: my $tail = $1.'/'.$2.$4;
1783: my @extras = split(/\//,$tail);
1784: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1785: if (!-e $destination) {
1786: my $i= 0;
1787: while ($i<@extras) {
1788: $path .= '/'.$extras[$i];
1789: if (!-e $path) {
1790: mkdir($path,0700);
1791: }
1792: $i ++;
1793: }
1794: my ($content,$rtncode);
1795: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1796: if ($uploadreply eq 'ok') {
1797: my $attachcopy;
1798: if ($attachcopy = Apache::File->new('>'.$destination)) {
1799: print $attachcopy $content;
1800: close($attachcopy);
1801: } else {
1802: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1803: }
1804: } else {
1805: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1806: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1807: }
1808: }
1809: }
1810: }
1811: return $response;
1812: }
1813:
1814: sub mail_screen {
1815: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1816: if (exists($env{'form.origpage'})) {
1817: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1818: }
1819:
1820: my %lt = &Apache::lonlocal::texthash(
1821: 'myqu' => 'Question/comment/feedback:',
1822: 'reta' => 'Retained attachments',
1823: 'atta' => 'Attachment',
1824: );
1825: if ($env{'form.editdisc'} || $env{'form.replydisc'}){
1826: $lt{'myqu'} = &mt('Post Discussion');
1827: }
1828: my $restitle = &get_resource_title($caller_symb,$feedurl);
1829: my $quote='';
1830: my $subject = '';
1831: my $comment = '';
1832: my $prevtag = '';
1833: my $parentmsg = '';
1834: my ($symb,$idx,$attachmenturls);
1835: my $numoldver = 0;
1836: my $attachmsg = '';
1837: my $newattachmsg = '';
1838: my @currnewattach = ();
1839: my @currdelold = ();
1840: my @keepold = ();
1841: my %attachments = ();
1842: my %currattach = ();
1843: my $attachnum = 0;
1844: my $anonchk = (<<END);
1845: function anonchk() {
1846: for (var i=0; i < document.mailform.discuss.length; i++) {
1847: if (document.mailform.discuss[i].checked) {
1848: document.attachment.discuss.value =
1849: document.mailform.discuss[i].value;
1850: }
1851: }
1852: if (document.mailform.blog.checked) {
1853: document.attachment.blog.value = 1;
1854: }
1855: return
1856: }
1857: END
1858: my $anonscript;
1859: if (exists($env{'form.origpage'})) {
1860: $anonscript = (<<END);
1861: function setposttype() {
1862: var disc = "$env{'form.discuss'}";
1863: for (var i=0; i < document.mailform.discuss.length; i++) {
1864: if (disc == document.mailform.discuss[i].value) {
1865: document.mailform.discuss[i].checked = 1;
1866: }
1867: }
1868: var blog = "$env{'form.blog'}";
1869: if (blog == 1) {
1870: document.mailform.blog.checked=1;
1871: }
1872: return
1873: }
1874: END
1875: } else {
1876: $anonscript = (<<END);
1877: function setposttype() {
1878: return
1879: }
1880: END
1881: }
1882: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1883: if ($env{'form.replydisc'}) {
1884: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1885: } else {
1886: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1887: }
1888: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1889: $env{'course.'.$env{'request.course.id'}.'.domain'},
1890: $env{'course.'.$env{'request.course.id'}.'.num'});
1891: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1892: my $numoldver = 0;
1893: if ($contrib{$idx.':history'}) {
1894: if ($contrib{$idx.':history'} =~ /:/) {
1895: my @oldversions = split(/:/,$contrib{$idx.':history'});
1896: $numoldver = @oldversions;
1897: } else {
1898: $numoldver = 1;
1899: }
1900: }
1901: if ($idx > 0) {
1902: my (%msgversions,%subversions,$htmldecode);
1903: $htmldecode = 0;
1904: if ($env{'form.replydisc'}) {
1905: $htmldecode = 1;
1906: }
1907: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1908: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1909: $numoldver);
1910: $subject = $subversions{$numoldver};
1911: if ($env{'form.replydisc'}) {
1912: $quote = $msgversions{$numoldver};
1913: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1914: } else {
1915: $comment = $msgversions{$numoldver};
1916: }
1917: }
1918: if ($env{'form.editdisc'}) {
1919: $attachmenturls = $contrib{$idx.':attachmenturl'};
1920: if (defined($contrib{$idx.':replyto'})) {
1921: $parentmsg = $contrib{$idx.':replyto'};
1922: }
1923: unless (exists($env{'form.origpage'})) {
1924: my $anonflag = 'nonanon';
1925: if ($contrib{$idx.':anonymous'}) {
1926: $anonflag = 'anon';
1927: }
1928: $anonscript = (<<END);
1929: function setposttype () {
1930: var currtype = "$anonflag";
1931: for (var i=0; i<document.mailform.discuss.length; i++) {
1932: if (document.mailform.elements.discuss[i].value == currtype ) {
1933: document.mailform.elements.discuss[i].checked=1;
1934: }
1935: }
1936: return
1937: }
1938: END
1939: }
1940: }
1941: }
1942: if ($env{'form.previous'}) {
1943: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1944: }
1945: }
1946:
1947: if ($env{'form.origpage'}) {
1948: $subject = &unescape($env{'form.subject'});
1949: $comment = &unescape($env{'form.comment'});
1950: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1951: }
1952: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1953: my $send=&mt('Send');
1954: my $alert = &mt('Please select a feedback type.');
1955: &js_escape(\$alert);
1956: my $js= <<END;
1957: <script type="text/javascript">
1958: //<!--
1959: function gosubmit() {
1960: var rec=0;
1961: if (typeof(document.mailform.elements.discuss)!="undefined") {
1962: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1963: if (document.mailform.elements.discuss.checked ) {
1964: rec=1;
1965: }
1966: } else {
1967: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1968: if (document.mailform.elements.discuss[i].checked ) {
1969: rec=1;
1970: }
1971: }
1972: }
1973: }
1974: if (typeof(document.mailform.elements.blog)!="undefined") {
1975: if (document.mailform.elements.blog.checked) {
1976: rec=1;
1977: }
1978: }
1979:
1980: if (rec) {
1981: if (typeof(document.mailform.onsubmit)=='function') {
1982: document.mailform.onsubmit();
1983: }
1984: document.mailform.submit();
1985: } else {
1986: alert('$alert');
1987: }
1988: }
1989: $anonchk
1990: $anonscript
1991: //-->
1992: </script>
1993: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
1994: END
1995:
1996: my ($textareaheader,$textareaclass);
1997: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1998: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1999: $textareaclass = 'class="LC_richDefaultOff"';
2000: if ($env{'request.course.id'}) {
2001: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
2002: undef($textareaclass);
2003: }
2004: }
2005: }
2006:
2007: # Breadcrumbs
2008: my $brcrum = [{'href' => '',
2009: 'text' => 'Resource Feedback and Discussion'}];
2010:
2011: my %onload = ('onload' => 'window.focus();setposttype();');
2012: my %parms=('add_entries' => \%onload);
2013: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
2014: my $start_page=
2015: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
2016:
2017: if ($quote ne '') {
2018: $quote = &HTML::Entities::decode($quote);
2019: unless (&contains_block_html($quote)) {
2020: &newline_to_br(\$quote);
2021: }
2022: $quote=&Apache::lonhtmlcommon::start_pick_box().
2023: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
2024: &Apache::lontexconvert::msgtexconverted($quote).
2025: &Apache::lonhtmlcommon::row_closure(1).
2026: &Apache::lonhtmlcommon::end_pick_box();
2027: }
2028: my $header='';
2029: unless ($env{'form.modal'}) {
2030: $header="<h2><tt>$restitle</tt></h2>";
2031: }
2032: $r->print(<<END);
2033: $start_page
2034: <h1>$lt{'myqu'}</h1>
2035: $header
2036: <form action="/adm/feedback" method="post" name="mailform"
2037: enctype="multipart/form-data">
2038: $prevtag
2039: <input type="hidden" name="postdata" value="$feedurl" />
2040: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2041: END
2042: if ($env{'form.replydisc'}) {
2043: $r->print(<<END);
2044: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
2045: END
2046: } elsif ($env{'form.editdisc'}) {
2047: $r->print(<<END);
2048: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
2049: <input type="hidden" name="parentmsg" value="$parentmsg" />
2050: END
2051: }
2052: $r->print(<<END);
2053: $options
2054: <br />
2055: END
2056: $r->print(&Apache::lonhtmlcommon::start_pick_box());
2057: $r->print(<<END);
2058: $quote
2059: <p>
2060: $textareaheader
2061: </p>
2062: <p>
2063: $latexHelp
2064: </p>
2065: <p>
2066: END
2067:
2068:
2069: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
2070: $r->print('<input type="text" name="subject" size="30" value="'.
2071: $subject.'" /></p>');
2072: $r->print(&Apache::lonhtmlcommon::row_closure());
2073: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
2074: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
2075: $textareaclass.'>'.$comment.
2076: '</textarea>');
2077: $r->print(&Apache::lonhtmlcommon::row_closure(1));
2078: $r->print(&Apache::lonhtmlcommon::end_pick_box());
2079:
2080: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
2081: if ($env{'form.origpage'}) {
2082: foreach my $attach (@currnewattach) {
2083: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2084: }
2085: foreach my $oldatt (@currdelold) {
2086: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2087: }
2088: }
2089: if ($env{'form.editdisc'}) {
2090: if ($attachmenturls) {
2091: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2092: $attachnum = scalar(keys(%currattach));
2093: foreach my $key (keys(%currattach)) {
2094: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2095: }
2096: }
2097: }
2098: } else {
2099: $r->print(<<END);
2100: <p>
2101: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
2102: <input type="hidden" id="LC_free_space" value="131072" />
2103: </p>
2104: END
2105: }
2106: if (exists($env{'form.group'})) {
2107: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2108: }
2109: if (exists($env{'form.ref'})) {
2110: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2111: }
2112: $r->print(<<END);
2113: <input type="hidden" name="sendit" value="1" />
2114: <input type="button" value="$send" onclick='gosubmit();' />
2115: </form>
2116: END
2117: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2118: my $now = time;
2119: my $ressymb = $symb;
2120: &Apache::lonenc::check_encrypt(\$ressymb);
2121: my $postidx = '';
2122: if ($env{'form.editdisc'}) {
2123: $postidx = $idx;
2124: }
2125: if (@currnewattach > 0) {
2126: $attachnum += @currnewattach;
2127: }
2128: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2129: if ($attachnum > 0) {
2130: if (@currnewattach > 0) {
2131: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2132: if (@currnewattach > 1) {
2133: $newattachmsg .= '<ol>';
2134: foreach my $item (@currnewattach) {
2135: $item =~ m#.*/([^/]+)$#;
2136: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2137: }
2138: $newattachmsg .= '</ol>'."\n";
2139: } else {
2140: $currnewattach[0] =~ m#.*/([^/]+)$#;
2141: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2142: }
2143: }
2144: if ($attachmsg) {
2145: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2146: }
2147: if ($newattachmsg) {
2148: $r->print("$newattachmsg");
2149: }
2150: }
2151: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2152: }
2153: $r->print(&generate_preview_button().
2154: &Apache::loncommon::end_page());
2155:
2156: }
2157:
2158: sub print_display_options {
2159: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2160: &Apache::loncommon::content_type($r,'text/html');
2161: $r->send_http_header;
2162:
2163: my $function = &Apache::loncommon::get_users_function();
2164: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2165: $env{'user.domain'});
2166:
2167: my %lt = &Apache::lonlocal::texthash(
2168: 'pref' => 'Display Preference',
2169: 'curr' => 'Current setting ',
2170: 'actn' => 'Action',
2171: 'deff' => 'Default for all discussions',
2172: 'prca' => 'Preferences can be set for this discussion that determine ....',
2173: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2174: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2175: 'wipa' => 'Whether individual posts can be marked as read/unread',
2176: 'allposts' => 'All posts',
2177: 'unread' => 'New posts only',
2178: 'unmark' => 'Posts not marked read',
2179: 'ondisp' => 'Once displayed',
2180: 'onmark' => 'Once marked not NEW',
2181: 'toggon' => 'Shown',
2182: 'toggoff' => 'Not shown',
2183: 'disa' => 'Posts displayed?',
2184: 'npmr' => 'New posts cease to be identified as "NEW"?',
2185: 'dotm' => 'Option to mark each post as read/unread?',
2186: 'chgt' => 'Change to ',
2187: 'mkdf' => 'Set to ',
2188: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2189: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2190: );
2191: my %js_lt = &Apache::lonlocal::texthash(
2192: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2193: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2194: );
2195: &js_escape(\%js_lt);
2196:
2197: my $dispchangeA = $lt{'unread'};
2198: my $dispchangeB = $lt{'unmark'};
2199: my $markchange = $lt{'ondisp'};
2200: my $toggchange = $lt{'toggon'};
2201: my $currdisp = $lt{'allposts'};
2202: my $currmark = $lt{'onmark'};
2203: my $discdisp = 'allposts';
2204: my $discmark = 'onmark';
2205: my $currtogg = $lt{'toggoff'};
2206: my $disctogg = 'toggoff';
2207:
2208: if ($dispchgA eq 'allposts') {
2209: $dispchangeA = $lt{'allposts'};
2210: $currdisp = $lt{'unread'};
2211: $discdisp = 'unread';
2212: }
2213:
2214: if ($markchg eq 'markonread') {
2215: $markchange = $lt{'onmark'};
2216: $currmark = $lt{'ondisp'};
2217: $discmark = 'ondisp';
2218: }
2219:
2220: if ($dispchgB eq 'onlyunread') {
2221: $dispchangeB = $lt{'unread'};
2222: $currdisp = $lt{'unmark'};
2223: $discdisp = 'unmark';
2224: }
2225: if ($toggchg eq 'toggoff') {
2226: $toggchange = $lt{'toggoff'};
2227: $currtogg = $lt{'toggon'};
2228: $disctogg = 'toggon';
2229: }
2230:
2231: my $js = <<END;
2232: <script type="text/javascript">
2233: function discdispChk(caller) {
2234: var disctogg = '$toggchg'
2235: if (caller == 0) {
2236: if (document.modifydisp.discdisp[0].checked == true) {
2237: if (document.modifydisp.discdisp[1].checked == true) {
2238: document.modifydisp.discdisp[1].checked = false
2239: }
2240: }
2241: }
2242: if (caller == 1) {
2243: if (document.modifydisp.discdisp[1].checked == true) {
2244: if (document.modifydisp.discdisp[0].checked == true) {
2245: document.modifydisp.discdisp[0].checked = false
2246: }
2247: if (disctogg == 'toggon') {
2248: document.modifydisp.disctogg.checked = true
2249: }
2250: if (disctogg == 'toggoff') {
2251: document.modifydisp.disctogg.checked = false
2252: }
2253: }
2254: }
2255: if (caller == 2) {
2256: var dispchgB = '$dispchgB'
2257: if (disctogg == 'toggoff') {
2258: if (document.modifydisp.disctogg.checked == true) {
2259: if (dispchgB == 'onlyunmark') {
2260: document.modifydisp.discdisp[1].checked = false
2261: }
2262: }
2263: }
2264: }
2265: }
2266:
2267: function setDisp() {
2268: var prev = "$previous"
2269: var chktotal = 0
2270: if (document.modifydisp.discdisp[0].checked == true) {
2271: document.modifydisp.$dispchgA.value = "$symb"
2272: chktotal ++
2273: }
2274: if (document.modifydisp.discdisp[1].checked == true) {
2275: document.modifydisp.$dispchgB.value = "$symb"
2276: chktotal ++
2277: }
2278: if (document.modifydisp.discmark.checked == true) {
2279: document.modifydisp.$markchg.value = "$symb"
2280: chktotal ++
2281: }
2282: if (document.modifydisp.disctogg.checked == true) {
2283: document.modifydisp.$toggchg.value = "$symb"
2284: chktotal ++
2285: }
2286: if (chktotal > 0) {
2287: document.modifydisp.submit()
2288: } else {
2289: if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
2290: if (prev > 0) {
2291: location.href = "$feedurl?previous=$previous"
2292: } else {
2293: location.href = "$feedurl"
2294: }
2295: }
2296: }
2297: }
2298: </script>
2299: END
2300:
2301:
2302: my $start_page =
2303: &Apache::loncommon::start_page('Discussion display options',$js);
2304: my $end_page =
2305: &Apache::loncommon::end_page();
2306: $r->print(<<END);
2307: $start_page
2308: <form name="modifydisp" method="post" action="/adm/feedback">
2309: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2310: <br />
2311: END
2312: $r->print(&Apache::loncommon::start_data_table());
2313: $r->print(<<END);
2314: <tr>
2315: <th>$lt{'pref'}</td>
2316: <th>$lt{'curr'}</td>
2317: <th>$lt{'actn'}?</td>
2318: </tr>
2319: END
2320: $r->print(&Apache::loncommon::start_data_table_row());
2321: $r->print(<<END);
2322: <td>$lt{'disa'}</td>
2323: <td>$lt{$discdisp}</td>
2324: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2325: <br />
2326: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2327: </td>
2328: END
2329: $r->print(&Apache::loncommon::end_data_table_row());
2330: $r->print(&Apache::loncommon::start_data_table_row());
2331: $r->print(<<END);
2332: <td>$lt{'npmr'}</td>
2333: <td>$lt{$discmark}</td>
2334: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2335: END
2336: $r->print(&Apache::loncommon::end_data_table_row());
2337: $r->print(&Apache::loncommon::start_data_table_row());
2338: $r->print(<<END);
2339: <td>$lt{'dotm'}</td>
2340: <td>$lt{$disctogg}</td>
2341: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2342: END
2343: my $save = &mt('Save');
2344: $r->print(&Apache::loncommon::end_data_table_row());
2345: $r->print(&Apache::loncommon::end_data_table());
2346: $r->print(<<END);
2347: <br />
2348: <br />
2349: <input type="hidden" name="symb" value="$symb" />
2350: <input type="hidden" name="previous" value="$previous" />
2351: <input type="hidden" name="$dispchgA" value="" />
2352: <input type="hidden" name="$dispchgB" value="" />
2353: <input type="hidden" name="$markchg" value="" />
2354: <input type="hidden" name="$toggchg" value="" />
2355: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2356: END
2357: if (exists($env{'form.group'})) {
2358: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2359: }
2360: if (exists($env{'form.ref'})) {
2361: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2362: }
2363: $r->print("
2364: <br />
2365: <br />
2366: </form>
2367: $end_page
2368: ");
2369: return;
2370: }
2371:
2372: sub print_sortfilter_options {
2373: my ($r,$symb,$previous,$feedurl) = @_;
2374:
2375: &Apache::loncommon::content_type($r,'text/html');
2376: $r->send_http_header;
2377:
2378: &Apache::lonenc::check_encrypt(\$symb);
2379: my @sections;
2380: my $section_sel = '';
2381: my $numvisible = 5;
2382: my @groups;
2383: my $group_sel = '';
2384: my $numgroupvis = 5;
2385: my %sectioncount = &Apache::loncommon::get_sections();
2386: my @courseroles = qw(st ad ep ta in);
2387: my $crstype = &Apache::loncommon::course_type();
2388: my $ccrole = 'cc';
2389: if ($crstype eq 'Community') {
2390: $ccrole = 'co';
2391: }
2392: push(@courseroles,$ccrole);
2393:
2394: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2395: @sections = ('all',$env{'request.course.sec'});
2396: $numvisible = 2;
2397: } else {
2398: @sections = sort {$a cmp $b} keys(%sectioncount);
2399: if (scalar(@sections) < 4) {
2400: $numvisible = scalar(@sections) + 1;
2401: }
2402: unshift(@sections,'all'); # Put 'all' at the front of the list
2403:
2404: }
2405: foreach my $sec (@sections) {
2406: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2407: }
2408:
2409: if (&check_group_priv() eq 'ok') {
2410: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2411: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2412: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2413: @groups = sort {$a cmp $b} keys(%curr_groups);
2414: if (scalar(@groups) < 4) {
2415: $numgroupvis = scalar(@groups) + 1;
2416: }
2417: unshift(@groups,'all'); # Put 'all' at the front of the list
2418: } else {
2419: my @coursegroups = split(/:/,$env{'request.course.groups'});
2420: if (@coursegroups > 0) {
2421: @coursegroups = sort {$a cmp $b} @coursegroups;
2422: @groups = ('all',@coursegroups);
2423: if (scalar(@groups) < 4) {
2424: $numgroupvis = scalar(@groups) + 1;
2425: }
2426: } else {
2427: @groups = ('all');
2428: $numgroupvis = 1;
2429: }
2430: }
2431: foreach my $group (@groups) {
2432: $group_sel .= " <option value=\"$group\">$group</option>\n";
2433: }
2434:
2435: my $function = &Apache::loncommon::get_users_function();
2436: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2437: $env{'user.domain'});
2438: my %lt = &Apache::lonlocal::texthash(
2439: 'diop' => 'Display Options',
2440: 'curr' => 'Current setting ',
2441: 'actn' => 'Action',
2442: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2443: 'soor' => 'Sort order',
2444: 'spur' => 'Specific user roles',
2445: 'sprs' => 'Specific role status',
2446: 'spse' => 'Specific sections',
2447: 'spgr' => 'Specific groups',
2448: 'psub' => 'Pick specific users (by name)',
2449: 'shal' => 'Show a list of current posters',
2450: 'stor' => 'Save changes',
2451: );
2452:
2453: my %sort_types = ();
2454: my %role_types = ();
2455: my %status_types = ();
2456: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2457:
2458: my $js = <<END;
2459: <script type="text/javascript">
2460: function verifyFilter() {
2461: var rolenum = 0
2462: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2463: if (document.modifyshown.rolefilter.options[i].selected == true) {
2464: rolenum ++
2465: }
2466: }
2467: if (rolenum == 0) {
2468: document.modifyshown.rolefilter.options[0].selected = true
2469: }
2470:
2471: var secnum = 0
2472: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2473: if (document.modifyshown.sectionpick.options[i].selected == true) {
2474: secnum ++
2475: }
2476: }
2477: if (secnum == 0) {
2478: document.modifyshown.sectionpick.options[0].selected = true
2479: }
2480:
2481: var grpnum = 0
2482: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2483: if (document.modifyshown.grouppick.options[i].selected == true) {
2484: grpnum ++
2485: }
2486: }
2487: if (grpnum == 0) {
2488: document.modifyshown.grouppick.options[0].selected = true
2489: }
2490:
2491: document.modifyshown.submit();
2492: }
2493: </script>
2494: END
2495:
2496: my $start_page=
2497: &Apache::loncommon::start_page('Discussion options',$js);
2498: my $end_page=
2499: &Apache::loncommon::end_page();
2500:
2501: $r->print(<<END);
2502: $start_page
2503: <form name="modifyshown" method="post" action="/adm/feedback">
2504: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2505: <br />
2506: <table border="0">
2507: <tr>
2508: <th>$lt{'soor'}</th>
2509: <th> </th>
2510: <th>$lt{'sprs'}</th>
2511: <th> </th>
2512: <th>$lt{'spur'}</th>
2513: <th> </th>
2514: <th>$lt{'spse'}</th>
2515: <th> </th>
2516: <th>$lt{'spgr'}</th>
2517: <th> </th>
2518: <th>$lt{'psub'}</th>
2519: </tr>
2520: <tr>
2521: <td align="center" valign="top">
2522: <select name="sortposts">
2523: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2524: <option value="descdate">$sort_types{'descdate'}</option>
2525: <option value="thread">$sort_types{'thread'}</option>
2526: <option value="subject">$sort_types{'subject'}</option>
2527: <option value="username">$sort_types{'username'}</option>
2528: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2529: </select>
2530: </td>
2531: <td> </td>
2532: <td align="center" valign="top">
2533: <select name="statusfilter">
2534: <option value="all" selected="selected">$status_types{'all'}</option>
2535: <option value="Active">$status_types{'Active'}</option>
2536: <option value="Expired">$status_types{'Expired'}</option>
2537: <option value="Future">$status_types{'Future'}</option>
2538: </select>
2539: </td>
2540: <td> </td>
2541: <td align="center" valign="top">
2542: <select name="rolefilter" multiple="multiple" size="5">
2543: <option value="all">$role_types{'all'}</option>
2544: <option value="st">$role_types{'st'}</option>
2545: <option value="$ccrole">$role_types{$ccrole}</option>
2546: <option value="in">$role_types{'in'}</option>
2547: <option value="ta">$role_types{'ta'}</option>
2548: <option value="ep">$role_types{'ep'}</option>
2549: <option value="ad">$role_types{'ad'}</option>
2550: <option value="cr">$role_types{'cr'}</option>
2551: </select>
2552: </td>
2553: <td> </td>
2554: <td align="center" valign="top">
2555: <select name="sectionpick" multiple="multiple" size="$numvisible">
2556: $section_sel
2557: </select>
2558: </td>
2559: <td> </td>
2560: <td align="center" valign="top">
2561: <select name="grouppick" multiple="multiple" size="$numvisible">
2562: $group_sel
2563: </select>
2564: </td>
2565: <td> </td>
2566: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2567: </tr>
2568: </table>
2569: <br />
2570: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2571: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2572: <input type="hidden" name="previous" value="$previous" />
2573: <input type="hidden" name="applysort" value="$symb" />
2574: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2575: END
2576: if (exists($env{'form.group'})) {
2577: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2578: }
2579: if (exists($env{'form.ref'})) {
2580: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2581: }
2582: $r->print("
2583: <br />
2584: <br />
2585: </form>
2586: $end_page
2587: ");
2588: }
2589:
2590: sub print_showposters {
2591: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2592:
2593: &Apache::loncommon::content_type($r,'text/html');
2594: $r->send_http_header;
2595:
2596: &Apache::lonenc::check_encrypt(\$symb);
2597: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2598: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2599: my $group = $env{'form.group'};
2600: my $ressymb = &wrap_symb($symb);
2601: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2602: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2603: $cdom,$cnum);
2604: my %namesort = ();
2605: my %postcounts = ();
2606:
2607: my %lt = &Apache::lonlocal::texthash(
2608: sele => 'Select',
2609: full => 'Fullname',
2610: usdo => 'Username:domain',
2611: post => 'Posts',
2612: );
2613: if ($contrib{'version'}) {
2614: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2615: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2616: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2617: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2618: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2619: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2620: my $lastname = $names{'lastname'};
2621: my $firstname = $names{'firstname'};
2622: if ($lastname eq '') {
2623: $lastname = '_';
2624: }
2625: if ($firstname eq '') {
2626: $firstname = '_';
2627: }
2628: unless (defined($namesort{$lastname})) {
2629: %{$namesort{$lastname}} = ();
2630: }
2631: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2632: $postcounts{$poster} ++;
2633: if (defined($namesort{$lastname}{$firstname})) {
2634: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2635: push(@{$namesort{$lastname}{$firstname}}, $poster);
2636: }
2637: } else {
2638: @{$namesort{$lastname}{$firstname}} = ("$poster");
2639: }
2640: }
2641: }
2642: }
2643: }
2644:
2645: my $start_page = &Apache::loncommon::start_page('Discussion options');
2646: my $table_start =&Apache::loncommon::start_data_table();
2647: $r->print(<<END);
2648: $start_page
2649: <form name="pickpostersform" method="post" action="">
2650: <br />
2651: $table_start
2652: <tr>
2653: <th>#</th>
2654: <th>$lt{'sele'}</th>
2655: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2656: <th>$lt{'post'}</th>
2657: </tr>
2658: END
2659: my $count = 0;
2660: foreach my $last (sort(keys(%namesort))) {
2661: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2662: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2663: my ($uname,$udom) = split(/:/,$user);
2664: if (!$uname || !$udom) {
2665: next;
2666: } else {
2667: $count ++;
2668: $r->print(&Apache::loncommon::start_data_table_row().
2669: '<td align="right">'.$count.'</td>
2670: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2671: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2672: <td>'.$postcounts{$user}.'</td>'.
2673: &Apache::loncommon::end_data_table_row());
2674: }
2675: }
2676: }
2677: }
2678: $r->print(&Apache::loncommon::end_data_table());
2679: my $end_page = &Apache::loncommon::end_page();
2680: $r->print(<<END);
2681: <br />
2682: <input type="hidden" name="sortposts" value="$sortposts" />
2683: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2684: <input type="hidden" name="userpick" value="$symb" />
2685: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2686: </form>
2687: $end_page
2688: END
2689: }
2690:
2691: sub get_post_versions {
2692: my ($versions,$incoming,$htmldecode,$numver) = @_;
2693: if ($incoming =~ /^<version num="0">/) {
2694: my $p = HTML::LCParser->new(\$incoming);
2695: my $done = 0;
2696:
2697: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2698: my $num = $token->[1]{num};
2699: my $text = $p->get_text("/version");
2700: if (defined($numver)) {
2701: if ($num == $numver) {
2702: if ($htmldecode) {
2703: $text = &HTML::Entities::decode($text);
2704: }
2705: $$versions{$numver}=$text;
2706: $done = 1;
2707: }
2708: } else {
2709: if ($htmldecode) {
2710: $text = &HTML::Entities::decode($text);
2711: }
2712: $$versions{$num}=$text;
2713: }
2714: }
2715: } else {
2716: if (!defined($numver)) {
2717: $numver = 0;
2718: }
2719: if ($htmldecode) {
2720: $$versions{$numver} = $incoming;
2721: } else {
2722: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2723: }
2724: }
2725: return;
2726: }
2727:
2728: sub get_post_attachments {
2729: my ($attachments,$attachmenturls) = @_;
2730: my $num;
2731: if ($attachmenturls =~ m/^<attachment id="0">/) {
2732: my $p = HTML::LCParser->new(\$attachmenturls);
2733: while (my $token = $p->get_tag("attachment","filename","post")) {
2734: if ($token->[0] eq "attachment") {
2735: $num = $token->[1]{id};
2736: %{$$attachments{$num}} =();
2737: } elsif ($token->[0] eq "filename") {
2738: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2739: } elsif ($token->[0] eq "post") {
2740: my $id = $token->[1]{id};
2741: $$attachments{$num}{$id} = $p->get_text("/post");
2742: }
2743: }
2744: } else {
2745: %{$$attachments{'0'}} = ();
2746: $$attachments{'0'}{'filename'} = $attachmenturls;
2747: $$attachments{'0'}{'0'} = 'n';
2748: }
2749: return;
2750: }
2751:
2752: sub fail_redirect {
2753: my ($r,$feedurl,$delay) = @_;
2754: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2755: my %lt = &Apache::lonlocal::texthash(
2756: 'sorr' => 'Sorry, no recipients ...',
2757: );
2758: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2759: my %parms=('only_body' => 1);
2760: if ($delay !~ /^\d+(|\.\d+)$/) {
2761: $delay = 2;
2762: }
2763: if ($env{'form.modal'}) {
2764: my $onload = 'document.forms.reldt.submit()';
2765: if ($delay) {
2766: my $js_delay = int(1000 * $delay);
2767: $onload = "setTimeout(function(){
2768: document.forms.reldt.submit();
2769: },$js_delay);";
2770: }
2771: $parms{'add_entries'}={'onload' => $onload};
2772: } else {
2773: $parms{'redirect'}=[$delay,$feedurl];
2774: }
2775: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
2776: my $windowname = 'loncapaclient';
2777: $r->print(<<ENDFAILREDIR);
2778: <img align="right" src="$logo" />
2779: <p class="LC_warning">$lt{'sorr'}</p>
2780: <form name="reldt" action="$feedurl" target="$windowname">
2781: </form>
2782: ENDFAILREDIR
2783: $r->print(&Apache::loncommon::end_page());
2784: }
2785:
2786: sub redirect_back {
2787: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
2788: $rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge,$delay) = @_;
2789: my $sorttag = '';
2790: my $roletag = '';
2791: my $statustag = '';
2792: my $sectag = '';
2793: my $grptag = '';
2794: my $userpicktag = '';
2795: my $qrystr = '';
2796: my $prevtag = '';
2797:
2798: &Apache::loncommon::content_type($r,'text/html');
2799: $r->send_http_header;
2800: &dewrapper(\$feedurl);
2801: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2802: if ($previous > 0) {
2803: $qrystr = 'previous='.$previous;
2804: if ($feedurl =~ /\?register=1/) {
2805: $feedurl .= '&'.$qrystr;
2806: } else {
2807: $feedurl .= '?'.$qrystr;
2808: }
2809: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2810: }
2811: if (defined($sort)) {
2812: my $sortqry = 'sortposts='.$sort;
2813: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2814: $feedurl .= '&'.$sortqry;
2815: } else {
2816: $feedurl .= '?'.$sortqry;
2817: }
2818: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2819: if (defined($numpicks)) {
2820: my $userpickqry = 'totposters='.$numpicks;
2821: $feedurl .= '&'.$userpickqry;
2822: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2823: } else {
2824: if (ref($sectionpick) eq 'ARRAY') {
2825: $feedurl .= '&sectionpick=';
2826: $sectag .= '<input type="hidden" name="sectionpick" value="';
2827: foreach my $sec (@{$sectionpick}) {
2828: $feedurl .= $sec.',';
2829: $sectag .= $sec.',';
2830: }
2831: $feedurl =~ s/,$//;
2832: $sectag =~ s/,$//;
2833: $sectag .= '" />';
2834: } else {
2835: $feedurl .= '&sectionpick='.$sectionpick;
2836: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2837: }
2838: if (ref($grouppick) eq 'ARRAY') {
2839: $feedurl .= '&grouppick=';
2840: $sectag .= '<input type="hidden" name="grouppick" value="';
2841: foreach my $grp (@{$grouppick}) {
2842: $feedurl .= $grp.',';
2843: $grptag .= $grp.',';
2844: }
2845: $feedurl =~ s/,$//;
2846: $grptag =~ s/,$//;
2847: $grptag .= '" />';
2848: } else {
2849: $feedurl .= '&grouppick='.$grouppick;
2850: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2851: }
2852: if (ref($rolefilter) eq 'ARRAY') {
2853: $feedurl .= '&rolefilter=';
2854: $roletag .= '<input type="hidden" name="rolefilter" value="';
2855: foreach my $role (@{$rolefilter}) {
2856: $feedurl .= $role.',';
2857: $roletag .= $role.',';
2858: }
2859: $feedurl =~ s/,$//;
2860: $roletag =~ s/,$//;
2861: $roletag .= '" />';
2862: } else {
2863: $feedurl .= '&rolefilter='.$rolefilter;
2864: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2865: }
2866: $feedurl .= '&statusfilter='.$statusfilter;
2867: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2868: }
2869: }
2870: my $grouptag;
2871: if ($group ne '') {
2872: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2873: my $refarg;
2874: if (exists($env{'form.ref'})) {
2875: $refarg = '&ref='.$env{'form.ref'};
2876: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2877: }
2878: if ($feedurl =~ /\?/) {
2879: $feedurl .= '&group='.$group.$refarg;
2880: } else {
2881: $feedurl .= '?group='.$group.$refarg;
2882: }
2883: }
2884: &Apache::lonenc::check_encrypt(\$feedurl);
2885: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2886: my %parms=('only_body' => 1);
2887: if ($delay !~ /^\d+(|\.\d+)$/) {
2888: $delay = 0;
2889: }
2890: if ($env{'form.modal'}) {
2891: my $onload = 'document.forms.reldt.submit()';
2892: if ($delay) {
2893: my $js_delay = int(1000 * $delay);
2894: $onload = "setTimeout(function(){
2895: document.forms.reldt.submit();
2896: },$js_delay);";
2897: }
2898: $parms{'add_entries'}={'onload' => $onload};
2899: } else {
2900: $parms{'redirect'}=[$delay,$feedurl];
2901: }
2902: my $start_page=
2903: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2904: my $end_page = &Apache::loncommon::end_page();
2905: $r->print(<<ENDREDIR);
2906: $start_page
2907: <img align="right" src="$logo" />
2908: $typestyle
2909: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2910: $blog
2911: $toolarge
2912: <font color="red">$status</font>
2913: <form name="reldt" action="$feedurl" target="loncapaclient">
2914: $prevtag
2915: $sorttag
2916: $statustag
2917: $roletag
2918: $sectag
2919: $grptag
2920: $userpicktag
2921: $grouptag
2922: </form>
2923: $end_page
2924: ENDREDIR
2925: }
2926:
2927: sub no_redirect_back {
2928: my ($r,$feedurl,$delay) = @_;
2929: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2930: my $form_for_modal;
2931: my %parms=('only_body' => 1,
2932: 'bgcolor' => '#FFFFFF',);
2933: if ($delay !~ /^\d+(|\.\d+)$/) {
2934: $delay = 0;
2935: }
2936: if ($env{'form.modal'}) {
2937: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2938: my $onload = 'document.forms.reldt.submit()';
2939: if ($delay) {
2940: my $js_delay = int(1000 * $delay);
2941: $onload = "setTimeout(function(){
2942: document.forms.reldt.submit();
2943: },$js_delay);";
2944: }
2945: $parms{'add_entries'}={'onload' => $onload};
2946: my $windowname = 'loncapaclient';
2947: $form_for_modal = <<ENDFORM;
2948: <form name="reldt" action="$feedurl" target="$windowname">
2949: </form>
2950: ENDFORM
2951: }
2952: } else {
2953: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2954: $parms{'redirect'}=[$delay,$feedurl];
2955: }
2956: }
2957: my $start_page=
2958: &Apache::loncommon::start_page('Feedback not sent',undef,
2959: \%parms);
2960:
2961: my $end_page = &Apache::loncommon::end_page();
2962:
2963: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2964: $r->print (<<ENDNOREDIRTWO);
2965: $start_page
2966: <img align="right" src="$logo" />
2967: <b>$nofeed</b>
2968: <br />
2969: $form_for_modal
2970: $end_page
2971: ENDNOREDIRTWO
2972: }
2973:
2974: sub screen_header {
2975: my ($feedurl,$symb,$group) = @_;
2976: my %default = &Apache::lonlocal::texthash (
2977: question => 'Question about resource content',
2978: comment => 'Question/Comment/Feedback about course content',
2979: policy => 'Question/Comment/Feedback about course policy',
2980: );
2981: my $contribdisc = &mt('Contribution to course discussion of resource');
2982: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2983: my $namevis = &mt('name only visible to course faculty');
2984: my $crstype;
2985: if ($env{'request.course.id'}) {
2986: $crstype = &Apache::loncommon::course_type();
2987: if ($crstype eq 'Community') {
2988: $default{'comment'} = &mt('Question/Comment/Feedback about community content');
2989: $default{'policy'} = &mt('Question/Comment/Feedback about community policy');
2990: $contribdisc = &mt('Contribution to community discussion of resource');
2991: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2992: $namevis = &mt('name only visible to community facilitators');
2993: }
2994: }
2995: my $msgoptions='';
2996: my $discussoptions='';
2997: my $checkradio = '';
2998: my $blockblog;
2999: my (%fdbkoptions,%discoptions);
3000: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
3001: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
3002: $fdbkoptions{'author'} = 1;
3003: }
3004: if (&feedback_available(1)) {
3005: $fdbkoptions{'question'} = 1;
3006: }
3007: if (&feedback_available(0,1)) {
3008: $fdbkoptions{'course'} = 1;
3009: }
3010: if (&feedback_available(0,0,1)) {
3011: $fdbkoptions{'policy'} = 1;
3012: }
3013: }
3014: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
3015: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
3016: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3017: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3018: my $realsymb = &get_realsymb($symb);
3019: if (!$blocked && &discussion_open(undef,$realsymb) &&
3020: (&Apache::lonnet::allowed('pch',
3021: $env{'request.course.id'}.
3022: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3023: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
3024: $discoptions{'nonanon'} = 1;
3025: $discoptions{'anon'} = 1;
3026: $blockblog = &Apache::loncommon::blocking_status('blogs');
3027: }
3028: }
3029: my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
3030: return if (!$total);
3031: if ($total == 1) {
3032: $checkradio = ' checked="checked"';
3033: }
3034: if (keys(%fdbkoptions)) {
3035: if ($fdbkoptions{'author'}) {
3036: $msgoptions =
3037: '<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
3038: &mt('Feedback to resource author').'</label><br />';
3039: }
3040: foreach my $item ('question','comment','policy') {
3041: my $type = $item;
3042: if ($item eq 'comment') {
3043: $type = 'course';
3044: }
3045: my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
3046: if ($fdbkoptions{$type}) {
3047: $msgoptions .=
3048: '<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
3049: ($optionhash?$optionhash:$default{$item}).'</label><br />';
3050: }
3051: }
3052: }
3053: if (keys(%discoptions)) {
3054: if ($discoptions{'nonanon'}) {
3055: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
3056: $contribdisc.
3057: '</label>';
3058: }
3059: if ($discoptions{'anon'}) {
3060: $discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
3061: $anoncontrib.
3062: ' <i>('.$namevis.')</i></label> '.
3063: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
3064: }
3065: if (!$blockblog) {
3066: $discussoptions.= &add_blog_checkbox($crstype);
3067: }
3068: }
3069: if ($msgoptions) {
3070: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
3071: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
3072: '<td>'.$msgoptions.'</td></tr>';
3073: }
3074: if ($discussoptions) {
3075: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
3076: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
3077: '<td>'.$discussoptions.'</td></tr>';
3078: }
3079: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
3080: }
3081:
3082: sub resource_output {
3083: my ($feedurl) = @_;
3084: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
3085: $usersaw=~s/\<body[^\>]*\>//gi;
3086: $usersaw=~s/\<\/body\>//gi;
3087: $usersaw=~s/\<html\>//gi;
3088: $usersaw=~s/\<\/html\>//gi;
3089: $usersaw=~s/\<head\>//gi;
3090: $usersaw=~s/\<\/head\>//gi;
3091: $usersaw=~s/action\s*\=/would_be_action\=/gi;
3092: return $usersaw;
3093: }
3094:
3095: sub clear_out_html {
3096: my ($message,$override)=@_;
3097: # Always allow the <m>-tag
3098: my %html=(M=>1);
3099: # Check if more is allowed
3100: my $cid=$env{'request.course.id'};
3101: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
3102: ($override)) {
3103: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
3104: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
3105: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
3106: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
3107: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
3108: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
3109: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
3110: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
3111: }
3112: # Do the substitution of everything that is not explicitly allowed
3113: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
3114: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
3115: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
3116: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
3117: return $message;
3118: }
3119:
3120: sub assemble_email {
3121: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
3122: my %lt = &Apache::lonlocal::texthash(
3123: 'prev' => 'Previous attempts of student (if applicable)',
3124: 'orig' => 'Original screen output (if applicable)',
3125: 'corr' => 'Correct Answer(s) (if applicable)',
3126: );
3127: if (&Apache::loncommon::course_type() eq 'Community') {
3128: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
3129: }
3130: my $email=<<"ENDEMAIL";
3131: $message
3132: ENDEMAIL
3133: my $citations=<<"ENDCITE";
3134: <h2>$lt{'prev'}</h2>
3135: $prevattempts
3136: <br /><hr />
3137: <h2>$lt{'orig'}</h2>
3138: $usersaw
3139: <h2>$lt{'corr'}</h2>
3140: $useranswer
3141: ENDCITE
3142: return ($email,$citations);
3143: }
3144:
3145:
3146: sub feedback_available {
3147: my ($question,$course,$policy)=@_;
3148: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
3149: $course,$policy);
3150: return scalar(%to);
3151: }
3152:
3153: sub send_msg {
3154: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,$clientip,%to)=@_;
3155: my $status='';
3156: my $sendsomething=0;
3157: my $delay;
3158: my $senthide;
3159: my %setters;
3160: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
3161: &Apache::loncommon::blockcheck(\%setters,'com',$clientip);
3162: if ($by_ip) {
3163: $senthide = 1;
3164: }
3165: my $restitle = &get_resource_title($symb,$feedurl);
3166: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3167: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3168: foreach my $key (keys(%to)) {
3169: if ($key) {
3170: my ($user,$domain) = split(/\:/,$key,2);
3171: if (!defined($user)) {
3172: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3173: } elsif (!defined($domain)) {
3174: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3175: } else {
3176: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3177: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3178: $attachmenturl,undef,undef,$symb,$restitle,undef,
3179: undef,undef,undef,$senthide)=~/ok/) {
3180: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3181: } else {
3182: $sendsomething++;
3183: }
3184: }
3185: }
3186: }
3187: if ($sendsomething && $senthide) {
3188: if ($by_ip) {
3189: my $showdom = &Apache::lonnet::domain($blockdom);
3190: if ($showdom eq '') {
3191: $showdom = $blockdom;
3192: }
3193: $delay = 4;
3194: $status.='<br />'.&mt("Message content of feedback you send to instructor(s) from your current IP address: [_1] will be unavailable in your 'Sent' folder.",$clientip).
3195: '<ul><li>'.
3196: &mt('This does not affect delivery of feedback to your instructor(s).').
3197: '</li><li>'.
3198: &mt('Note: some types of communication functionality are blocked for certain IP address(es).').
3199: '</li><li>'.
3200: &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',
3201: $showdom).
3202: '</li></ul><br />';
3203: }
3204: }
3205:
3206: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3207: # There are two entries within the framework of a course:
3208: # - the URLs for which feedback was provided
3209: # - the total number of contributions
3210: if ($sendsomething) {
3211: my %record=&getfeedbackrecords();
3212: my ($temp)=keys(%record);
3213: unless ($temp=~/^error\:/) {
3214: my %newrecord=();
3215: $newrecord{'resource'}=$feedurl;
3216: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3217: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3218: $status.='<br />'.&mt('Not registered').'<br />';
3219: }
3220: }
3221: }
3222: return ($status,$sendsomething,$delay);
3223: }
3224:
3225: # Routine to get the complete feedback records
3226:
3227: sub getfeedbackrecords {
3228: my ($uname,$udom,$course)=@_;
3229: unless ($uname) { $uname=$env{'user.name'}; }
3230: unless ($udom) { $udom=$env{'user.domain'}; }
3231: unless ($course) { $course=$env{'request.course.id'}; }
3232: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3233: return %record;
3234: }
3235:
3236: # Routine to get feedback statistics
3237:
3238: sub getfeedbackstats {
3239: my %record=&getfeedbackrecords(@_);
3240: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3241: }
3242:
3243: # Store feedback credit
3244:
3245: sub storefeedbackpoints {
3246: my ($points,$uname,$udom,$course)=@_;
3247: unless ($points) { $points=0; }
3248: unless ($uname) { $uname=$env{'user.name'}; }
3249: unless ($udom) { $udom=$env{'user.domain'}; }
3250: unless ($course) { $course=$env{'request.course.id'}; }
3251: my %record=('grader_user' => $env{'user.name'},
3252: 'grader_domain' => $env{'user.domain'},
3253: 'points' => $points);
3254: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3255: }
3256:
3257: # Store feedback "likes"
3258:
3259: sub storefeedbacklikes {
3260: my ($likes,$uname,$udom,$course)=@_;
3261: unless ($likes) { $likes=0; }
3262: if ($likes>0) { $likes=1; }
3263: if ($likes<0) { $likes=-1; }
3264: unless ($uname) { $uname=$env{'user.name'}; }
3265: unless ($udom) { $udom=$env{'user.domain'}; }
3266: unless ($course) { $course=$env{'request.course.id'}; }
3267: my %record=&getfeedbackrecords($uname,$udom,$course);
3268: my $totallikes=$record{'totallikes'};
3269: $totallikes+=$likes;
3270: my %newrecord=('likes_user' => $env{'user.name'},
3271: 'likes_domain' => $env{'user.domain'},
3272: 'likes' => $likes,
3273: 'totallikes' => $totallikes);
3274: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3275: }
3276:
3277:
3278: sub adddiscuss {
3279: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3280: my $status='';
3281: my $realsymb = &get_realsymb($symb);
3282: my ($cnum,$cdom);
3283: if ($env{'request.course.id'}) {
3284: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3285: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3286: }
3287: if (&discussion_open(undef,$realsymb) &&
3288: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3289: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3290: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3291: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3292:
3293: my %contrib=('message' => $email,
3294: 'sendername' => $env{'user.name'},
3295: 'senderdomain' => $env{'user.domain'},
3296: 'screenname' => $env{'environment.screenname'},
3297: 'plainname' => $env{'environment.firstname'}.' '.
3298: $env{'environment.middlename'}.' '.
3299: $env{'environment.lastname'}.' '.
3300: $env{'enrironment.generation'},
3301: 'attachmenturl'=> $attachmenturl,
3302: 'subject' => $subject);
3303: if ($env{'form.replydisc'}) {
3304: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3305: }
3306: if ($anon) {
3307: $contrib{'anonymous'}='true';
3308: }
3309: if (($symb) && ($email)) {
3310: my $now = time;
3311: if ($env{'form.editdisc'}) {
3312: $contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
3313: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3314: $contrib{'timestamp'} = $now;
3315: $contrib{'history'} = '';
3316: my $numoldver = 0;
3317: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3318: &Apache::lonenc::check_decrypt(\$oldsymb);
3319: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3320: # get timestamp for last post and history
3321: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3322: $env{'course.'.$env{'request.course.id'}.'.domain'},
3323: $env{'course.'.$env{'request.course.id'}.'.num'});
3324: if (defined($oldcontrib{$oldidx.':replyto'})) {
3325: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3326: }
3327: if (defined($oldcontrib{$oldidx.':history'})) {
3328: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3329: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3330: $numoldver = @oldversions;
3331: } else {
3332: $numoldver = 1;
3333: }
3334: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3335: }
3336: my $numnewver = $numoldver + 1;
3337: if (defined($oldcontrib{$oldidx.':subject'})) {
3338: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3339: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3340: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3341: } else {
3342: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3343: }
3344: }
3345: if (defined($oldcontrib{$oldidx.':message'})) {
3346: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3347: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3348: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3349: } else {
3350: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3351: }
3352: }
3353: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3354: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3355: $oldsymb,$oldidx,\%contrib,
3356: $env{'course.'.$env{'request.course.id'}.'.domain'},
3357: $env{'course.'.$env{'request.course.id'}.'.num'});
3358: $status='Editing class discussion'.($anon?' (anonymous)':'');
3359: } else {
3360: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3361: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3362: $env{'course.'.$env{'request.course.id'}.'.domain'},
3363: $env{'course.'.$env{'request.course.id'}.'.num'});
3364: }
3365: my %storenewentry=($symb => $now);
3366: $status.='<br />'.&mt('Updating discussion time').': '.
3367: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3368: $env{'course.'.$env{'request.course.id'}.'.domain'},
3369: $env{'course.'.$env{'request.course.id'}.'.num'});
3370: }
3371: my %record=&getdiscussionrecords();
3372: my ($temp)=keys(%record);
3373: unless ($temp=~/^error\:/) {
3374: my %newrecord=();
3375: $newrecord{'resource'}=$symb;
3376: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3377: $status.='<br />'.&mt('Registering').': '.
3378: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3379: &updatekarma();
3380: }
3381: } else {
3382: $status.='Failed.';
3383: }
3384: return $status.'<br />';
3385: }
3386:
3387:
3388: # Routine to get the complete discussion records
3389:
3390: sub getdiscussionrecords {
3391: my ($uname,$udom,$course)=@_;
3392: unless ($uname) { $uname=$env{'user.name'}; }
3393: unless ($udom) { $udom=$env{'user.domain'}; }
3394: unless ($course) { $course=$env{'request.course.id'}; }
3395: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3396: return %record;
3397: }
3398:
3399: # Routine to get discussion statistics
3400:
3401: sub getdiscussionstats {
3402: my %record=&getdiscussionrecords(@_);
3403: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3404: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3405: }
3406:
3407: # Calculate discussion karma
3408:
3409: sub calcdiscussionkarma {
3410: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3411: my $karma=0;
3412: if ($votes>0) {
3413: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3414: if ($karma<0) { $karma=0; }
3415: if ($karma>5) { $karma=5; }
3416: }
3417: return $karma;
3418: }
3419:
3420: # Update karma
3421:
3422: sub updatekarma {
3423: my ($uname,$udom,$course)=@_;
3424: unless ($uname) { $uname=$env{'user.name'}; }
3425: unless ($udom) { $udom=$env{'user.domain'}; }
3426: unless ($course) { $course=$env{'request.course.id'}; }
3427: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3428: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3429: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3430: return $karma;
3431: }
3432:
3433: # Retrieve karma
3434:
3435: sub userkarma {
3436: my ($uname,$udom,$course)=@_;
3437: unless ($uname) { $uname=$env{'user.name'}; }
3438: unless ($udom) { $udom=$env{'user.domain'}; }
3439: unless ($course) { $course=$env{'request.course.id'}; }
3440: my $hashkey=$uname.':'.$udom.':'.$course;
3441: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3442: if ($cached) {
3443: return $karma;
3444: }
3445: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3446: $karma=$userdisc{'karma'};
3447: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3448: return $karma;
3449: }
3450:
3451: # Store discussion credit
3452:
3453: sub storediscussionpoints {
3454: my ($points,$uname,$udom,$course)=@_;
3455: unless ($points) { $points=0; }
3456: unless ($uname) { $uname=$env{'user.name'}; }
3457: unless ($udom) { $udom=$env{'user.domain'}; }
3458: unless ($course) { $course=$env{'request.course.id'}; }
3459: my %record=('grader_user' => $env{'user.name'},
3460: 'grader_domain' => $env{'user.domain'},
3461: 'points' => $points);
3462: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3463: }
3464:
3465: # Store discussion "likes"
3466:
3467: sub storediscussionlikes {
3468: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3469: unless ($uname) { $uname=$env{'user.name'}; }
3470: unless ($udom) { $udom=$env{'user.domain'}; }
3471: unless ($course) { $course=$env{'request.course.id'}; }
3472: my %record=&getdiscussionrecords($uname,$udom,$course);
3473: my $totallikes=$record{'totallikes'};
3474: my $totalunlikes=$record{'totalunlikes'};
3475: $totallikes += $chglikes;
3476: $totalunlikes += $chgunlikes;
3477: my %newrecord=('likes_user' => $env{'user.name'},
3478: 'likes_domain' => $env{'user.domain'},
3479: 'totallikes' => $totallikes,
3480: 'totalunlikes' => $totalunlikes,
3481: 'context' => $context);
3482: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3483: if ($status eq 'ok') {
3484: &updatekarma($uname,$udom,$course);
3485: }
3486: return $status;
3487: }
3488:
3489: sub get_discussion_info {
3490: my ($idx,%contrib) = @_;
3491: my $changelast = 0;
3492: my $count = 0;
3493: my $hiddenflag = 0;
3494: my $deletedflag = 0;
3495: my ($hidden,$deleted,%info,$newlastdisc);
3496: my $version = $contrib{'version'};
3497: if ($version) {
3498: for (my $id=$version; $id>0; $id--) {
3499: my $vkeys=$contrib{$id.':keys'};
3500: my @keys=split(/:/,$vkeys);
3501: if (grep(/^hidden$/,@keys)) {
3502: if (!$hiddenflag) {
3503: $hidden = $contrib{$id.':hidden'};
3504: $hiddenflag = 1;
3505: }
3506: } elsif (grep(/^deleted$/,@keys)) {
3507: if (!$deletedflag) {
3508: $deleted = $contrib{$id.':deleted'};
3509: $deletedflag = 1;
3510: }
3511: } else {
3512: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3513: $count++;
3514: $info{$count}{'id'} = $id;
3515: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3516: }
3517: }
3518: }
3519: if ($info{'1'}{'id'} == $idx) {
3520: $changelast = 1;
3521: if ($count > 1) {
3522: $newlastdisc = $info{'2'}{'timestamp'};
3523: } else {
3524: $newlastdisc = 0;
3525: }
3526: }
3527: }
3528: return ($changelast,$newlastdisc);
3529: }
3530:
3531: # ----------------------------------------------------------- Preview function
3532:
3533: sub show_preview {
3534: my ($r) = @_;
3535: &Apache::loncommon::content_type($r,'text/html');
3536: $r->send_http_header;
3537: my $start_page=
3538: &Apache::loncommon::start_page('Preview',undef,
3539: {'only_body' => 1,});
3540:
3541: my $message=&clear_out_html($env{'form.comment'});
3542: &newline_to_br(\$message);
3543: $message=&Apache::lonspeller::markeduptext($message);
3544: $message=&Apache::lontexconvert::msgtexconverted($message);
3545: my $subject=&clear_out_html($env{'form.subject'});
3546: $subject=~s/\n/\<br \/\>/g;
3547: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3548:
3549: my $end_page = &Apache::loncommon::end_page();
3550:
3551: $r->print($start_page
3552: .'<h1>'.&mt('Preview').'</h1>'
3553: .&Apache::lonhtmlcommon::start_pick_box()
3554: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3555: .$subject
3556: .&Apache::lonhtmlcommon::row_closure()
3557: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3558: .$message
3559: .&Apache::lonhtmlcommon::row_closure(1)
3560: .&Apache::lonhtmlcommon::end_pick_box()
3561: .$end_page
3562: );
3563: }
3564:
3565: sub contains_block_html {
3566: my ($message)=@_;
3567: return ($message =~ m{
3568: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3569: \s*
3570: (\w+\=['"]\w+['"])*
3571: \s*
3572: (
3573: \s*/>|
3574: >.*</\1\s*>
3575: )}xs
3576: );
3577: }
3578:
3579: sub tidy_html {
3580: my ($message)=@_;
3581: # my $tidy = HTML::Tidy::libXML->new();
3582: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3583: # $xhtml =~ m/<body>(.*)<\/body>/is;
3584: # my $clean = $1;
3585: # # remove any empty block-level tags
3586: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3587: # $message=$clean;
3588: return $message;
3589: }
3590:
3591: sub newline_to_br {
3592: my ($message)=@_;
3593: my $newmessage;
3594: my $parser=HTML::LCParser->new($message);
3595: while (my $token=$parser->get_token()) {
3596: if ($token->[0] eq 'T') {
3597: my $text=$token->[1];
3598: $text=~s/\n/\<br \/\>/g;
3599: $newmessage.=$text;
3600: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3601: $newmessage.=$token->[1];
3602: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3603: $newmessage.=$token->[2];
3604: } elsif ($token->[0] eq 'S') {
3605: $newmessage.=$token->[4];
3606: }
3607:
3608: }
3609: $$message=$newmessage;
3610: }
3611:
3612: sub generate_preview_button {
3613: my ($formname,$fieldname)=@_;
3614: unless ($formname) { $formname='mailform'; }
3615: unless ($fieldname) { $fieldname='comment'; }
3616: my $pre=&mt("Show Preview and Check Spelling");
3617: return(<<ENDPREVIEW);
3618: <br />
3619: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3620: <input type="hidden" name="subject" />
3621: <input type="hidden" name="comment" />
3622: <input type="button" value="$pre"
3623: 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();" />
3624: </form>
3625: ENDPREVIEW
3626: }
3627:
3628: sub modify_attachments {
3629: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3630: $attachmaxtext,$toolarge)=@_;
3631:
3632: my %lt = &Apache::lonlocal::texthash(
3633: 'subj' => 'Subject',
3634: 'chth' => 'Check the checkboxes for any you wish to remove.',
3635: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3636: 'adda' => 'Add a new attachment to this post',
3637: 'stch' => 'Save Changes',
3638: 'clic' => 'Add/remove attachments',
3639: );
3640: my $js = <<END;
3641: <script type="text/javascript">
3642: function setAction () {
3643: document.modattachments.action = document.modattachments.origpage.value;
3644: document.modattachments.submit();
3645: }
3646: </script>
3647: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
3648: END
3649:
3650: # Breadcrumbs
3651: my $brcrum = [{'href' => '',
3652: 'text' => 'Discussion Post Attachments'}];
3653: my %parms=('only_body' => 1);
3654: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
3655:
3656: my $start_page =
3657: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3658:
3659: my $orig_subject = &unescape($env{'form.subject'});
3660: my $subject=&clear_out_html($orig_subject);
3661: $subject=~s/\n/\<br \/\>/g;
3662: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3663: my $timestamp=$env{'form.timestamp'};
3664: my $numoldver=$env{'form.numoldver'};
3665:
3666: my $msg = '';
3667: my %attachments = ();
3668: my %currattach = ();
3669: if ($idx) {
3670: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3671: }
3672: &Apache::lonenc::check_encrypt(\$symb);
3673:
3674: my $end_page =
3675: &Apache::loncommon::end_page();
3676:
3677: $r->print(<<END);
3678: $start_page
3679: $toolarge
3680: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3681:
3682: <h1>$lt{'clic'}</h1>
3683: END
3684: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3685: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3686: $r->print('<b>'.$subject.'</b>');
3687: $r->print(&Apache::lonhtmlcommon::row_closure());
3688: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3689: $r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
3690: .'<input type="hidden" id="LC_free_space" value="131072" />'
3691: .'<input type="button" name="upload" value="Upload" '
3692: .'onclick="this.form.submit()" /> '.$attachmaxtext);
3693: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3694: $r->print(&Apache::lonhtmlcommon::row_closure());
3695: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3696: if ($idx) {
3697: if ($attachmenturls) {
3698: my @currold = keys(%currattach);
3699: if (@currold > 0) {
3700: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3701: foreach my $id (@currold) {
3702: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3703: $attachurl =~ m#/([^/]+)$#;
3704: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3705: }
3706: $r->print("<br />");
3707: }
3708: }
3709: }
3710: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3711: $r->print($lt{'chth'}.'<br />'."\n");
3712: foreach my $attach (@{$currnewattach}) {
3713: $attach =~ m#/([^/]+)$#;
3714: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3715: }
3716: }
3717: }
3718: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3719: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3720: $r->print(<<END);
3721: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3722: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3723: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3724: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3725: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3726: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3727: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3728: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3729: END
3730: foreach my $item (@{$currnewattach}) {
3731: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3732: }
3733: foreach my $item (@{$currdelold}) {
3734: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3735: }
3736: $r->print(<<END);
3737: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3738: </form>
3739: $end_page
3740: END
3741: return;
3742: }
3743:
3744: sub process_attachments {
3745: my ($currnewattach,$currdelold,$keepold) = @_;
3746:
3747: @{$currnewattach}=
3748: &Apache::loncommon::get_env_multiple('form.currnewattach');
3749: @{$currdelold}=
3750: &Apache::loncommon::get_env_multiple('form.deloldattach');
3751: if (exists($env{'form.delnewattach'})) {
3752: my @currdelnew =
3753: &Apache::loncommon::get_env_multiple('form.delnewattach');
3754: my @currnew = ();
3755: foreach my $newone (@{$currnewattach}) {
3756: my $delflag = 0;
3757: foreach my $item (@currdelnew) {
3758: if ($newone eq $item) {
3759: $delflag = 1;
3760: last;
3761: }
3762: }
3763: unless ($delflag) {
3764: push(@currnew, $newone);
3765: }
3766: }
3767: @{$currnewattach} = @currnew;
3768: }
3769: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3770: }
3771:
3772: sub generate_attachments_button {
3773: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3774: $numoldver,$mode,$blockblog) = @_;
3775: my $origpage = $ENV{'REQUEST_URI'};
3776: my $att=$attachnum.' '.&mt("attachments");
3777: my %lt = &Apache::lonlocal::texthash(
3778: 'clic' => 'Add/remove attachments',
3779: );
3780: my $response = (<<END);
3781: <br />
3782: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3783: <input type="button" value="$lt{'clic'}"
3784: 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);
3785: END
3786: if (!$blockblog) {
3787: $response .= 'setblogvalue();';
3788: }
3789: unless ($mode eq 'board') {
3790: $response .= 'javascript:anonchk();';
3791: }
3792: $response .= (<<ENDATTACH);
3793: this.form.submit();" />
3794: <input type="hidden" name="origpage" value="$origpage" />
3795: <input type="hidden" name="idx" value="$idx" />
3796: <input type="hidden" name="timestamp" value="$now" />
3797: <input type="hidden" name="subject" />
3798: <input type="hidden" name="comment" />
3799: <input type="hidden" name="blog" value="0" />
3800: <input type="hidden" name="discuss" value="0" />
3801: <input type="hidden" name="numoldver" value="$numoldver" />
3802: ENDATTACH
3803: if (defined($deloldattach)) {
3804: if (@{$deloldattach} > 0) {
3805: foreach my $delatt (@{$deloldattach}) {
3806: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3807: }
3808: }
3809: }
3810: if (defined($currnewattach)) {
3811: if (@{$currnewattach} > 0) {
3812: foreach my $attach (@{$currnewattach}) {
3813: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3814: }
3815: }
3816: }
3817: $response .= '</form>';
3818: return $response;
3819: }
3820:
3821: sub extract_attachments {
3822: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3823: %{$attachments}=();
3824: &get_post_attachments($attachments,$attachmenturls);
3825: foreach my $id (sort(keys(%{$attachments}))) {
3826: if (exists($$attachments{$id}{$numoldver})) {
3827: if (defined($currdelold)) {
3828: if (@{$currdelold} > 0) {
3829: unless (grep/^$id$/,@{$currdelold}) {
3830: $$currattach{$id} = $$attachments{$id}{$numoldver};
3831: }
3832: } else {
3833: $$currattach{$id} = $$attachments{$id}{$numoldver};
3834: }
3835: } else {
3836: $$currattach{$id} = $$attachments{$id}{$numoldver};
3837: }
3838: }
3839: }
3840: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3841: if (@attached == 1) {
3842: my $id = $attached[0];
3843: my $attachurl;
3844: if ($attachmenturls =~ m/^<attachment id="0">/) {
3845: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3846: } else {
3847: $attachurl = $$attachments{$id}{'filename'};
3848: }
3849: $attachurl=~m|/([^/]+)$|;
3850: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3851: $1.'</tt></a><br />';
3852: &Apache::lonnet::allowuploaded('/adm/feedback',
3853: $attachurl);
3854: } elsif (@attached > 1) {
3855: $$message.='<ol>';
3856: foreach my $attach (@attached) {
3857: my $id = $attach;
3858: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3859: my ($fname)
3860: =($attachurl=~m|/([^/]+)$|);
3861: $$message .= '<li><a href="'.$attachurl.
3862: '"><tt>'.
3863: $fname.'</tt></a></li>';
3864: &Apache::lonnet::allowuploaded('/adm/feedback',
3865: $attachurl);
3866: }
3867: $$message .= '</ol>';
3868: }
3869: }
3870:
3871: sub construct_attachmenturl {
3872: my ($currnewattach,$keepold,$symb,$idx)=@_;
3873: my $oldattachmenturl;
3874: my $newattachmenturl;
3875: my $startnum = 0;
3876: my $currver = 0;
3877: if (($env{'form.editdisc'}) && ($idx)) {
3878: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3879: $env{'course.'.$env{'request.course.id'}.'.domain'},
3880: $env{'course.'.$env{'request.course.id'}.'.num'});
3881: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3882: if ($contrib{$idx.':history'}) {
3883: if ($contrib{$idx.':history'} =~ /:/) {
3884: my @oldversions = split(/:/,$contrib{$idx.':history'});
3885: $currver = 1 + scalar(@oldversions);
3886: } else {
3887: $currver = 2;
3888: }
3889: } else {
3890: $currver = 1;
3891: }
3892: if ($oldattachmenturl) {
3893: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3894: my %attachments = ();
3895: my $prevver = $currver-1;
3896: &get_post_attachments(\%attachments,$oldattachmenturl);
3897: my $numattach = scalar(keys(%attachments));
3898: $startnum += $numattach;
3899: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3900: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3901: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3902: unless ($item eq 'filename') {
3903: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3904: }
3905: }
3906: if (grep/^$num$/,@{$keepold}) {
3907: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3908: }
3909: $newattachmenturl .= '</attachment>';
3910: }
3911: } else {
3912: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3913: unless (grep/^0$/,@{$keepold}) {
3914: $newattachmenturl .= '<post id="1">n</post>';
3915: }
3916: $newattachmenturl .= '</attachment>';
3917: $startnum ++;
3918: }
3919: }
3920: }
3921: for (my $i=0; $i<@{$currnewattach}; $i++) {
3922: my $attachnum = $startnum + $i;
3923: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3924: }
3925: return $newattachmenturl;
3926: }
3927:
3928: sub add_blog_checkbox {
3929: my ($crstype) = @_;
3930: my $checkstatus;
3931: if ($env{'form.blog'}) {
3932: $checkstatus = 'checked="checked"';
3933: }
3934: my $output = '
3935: <script type="text/javascript">
3936: function setblogvalue() {
3937: if (document.mailform.blog.checked) {
3938: document.attachment.blog.value = 1;
3939: } else {
3940: document.attachment.blog.value = 0;
3941: }
3942: }
3943: </script><br />
3944: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3945: if ($crstype eq 'Community') {
3946: $output .= &mt('Add to my public community blog');
3947: } else {
3948: $output .= &mt('Add to my public course blog');
3949: }
3950: $output .= '</label><br />'."\n";
3951: return $output;
3952: }
3953:
3954: sub has_discussion {
3955: my $resourcesref = shift;
3956: my $navmap = Apache::lonnavmaps::navmap->new();
3957: if (defined($navmap)) {
3958: my @allres=$navmap->retrieveResources();
3959: foreach my $resource (@allres) {
3960: if ($resource->hasDiscussion()) {
3961: my $ressymb = $resource->wrap_symb();
3962: if (ref($resourcesref) eq 'ARRAY') {
3963: push(@{$resourcesref}, $ressymb);
3964: }
3965: }
3966: }
3967: } else {
3968: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3969: }
3970: return;
3971: }
3972:
3973: sub sort_filter_names {
3974: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3975: if (ref($sort_types) eq 'HASH') {
3976: %{$sort_types} = (
3977: ascdate => 'Date order - oldest first',
3978: descdate => 'Date order - newest first',
3979: thread => 'Threaded',
3980: subject => 'By subject',
3981: username => 'By domain and username',
3982: lastfirst => 'By last name, first name'
3983: );
3984: }
3985: my @courseroles = qw(st in ta ep ad);
3986: if ($crstype eq 'Community') {
3987: push(@courseroles,'co');
3988: } else {
3989: push(@courseroles,'cc');
3990: }
3991: if (ref($role_types) eq 'HASH') {
3992: foreach my $role (@courseroles) {
3993: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3994: }
3995: $role_types->{'all'} = 'All roles';
3996: $role_types->{'cr'} = 'Custom role';
3997: }
3998: if (ref($status_types) eq 'HASH') {
3999: %{$status_types} = (
4000: all => 'Roles of any status',
4001: Active => 'Only active roles',
4002: Expired => 'Only past roles',
4003: Future => 'Only future roles',
4004: );
4005: }
4006: }
4007:
4008: sub handler {
4009: my $r = shift;
4010: if ($r->header_only) {
4011: &Apache::loncommon::content_type($r,'text/html');
4012: $r->send_http_header;
4013: return OK;
4014: }
4015:
4016: # --------------------------- Get query string for limited number of parameters
4017:
4018: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4019: ['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']);
4020: my $group = $env{'form.group'};
4021: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4022: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4023:
4024: my %attachmax = (
4025: text => &mt('(128 KB max size)'),
4026: num => 131072,
4027: );
4028: if ($env{'form.editdisc'}) {
4029: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
4030: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4031: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
4032: my $feedurl=&Apache::lonnet::clutter($url);
4033: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
4034: '0','0','','',$env{'form.previous'},undef,undef,undef,
4035: undef,undef,undef,$group);
4036: return OK;
4037: }
4038: }
4039: if ($env{'form.discsymb'}) {
4040: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
4041: my $readkey = $symb.'_read';
4042: my $chgcount = 0;
4043: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
4044: foreach my $key (keys(%env)) {
4045: if ($key =~ m/^form\.postunread_(\d+)/) {
4046: if ($readinghash{$readkey} =~ /\.$1\./) {
4047: $readinghash{$readkey} =~ s/\.$1\.//;
4048: $chgcount ++;
4049: }
4050: } elsif ($key =~ m/^form\.postread_(\d+)/) {
4051: unless ($readinghash{$readkey} =~ /\.$1\./) {
4052: $readinghash{$readkey} .= '.'.$1.'.';
4053: $chgcount ++;
4054: }
4055: }
4056: }
4057: if ($chgcount > 0) {
4058: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4059: \%readinghash,$env{'user.domain'},$env{'user.name'});
4060: }
4061: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
4062: '0','0','','',$env{'form.previous'},'','','',
4063: undef,undef,undef,$group);
4064: return OK;
4065: }
4066: if ($env{'form.allversions'}) {
4067: &Apache::loncommon::content_type($r,'text/html');
4068: &Apache::loncommon::no_cache($r);
4069: $r->send_http_header;
4070:
4071: # Breadcrumbs
4072: my $brcrum = [{'href' => '',
4073: 'text' => 'Discussion Post Versions'}];
4074:
4075: my %parms=();
4076: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
4077:
4078: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
4079:
4080: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
4081: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
4082: my $ressymb = &wrap_symb($symb);
4083: my $seeid;
4084: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4085: $seeid = 1;
4086: }
4087: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4088: if ($idx > 0) {
4089: my %messages = ();
4090: my %subjects = ();
4091: my %attachmsgs = ();
4092: my %allattachments = ();
4093: my %imsfiles = ();
4094: my ($screenname,$plainname,$showaboutme);
4095: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4096: $cdom,$cnum);
4097: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
4098: }
4099: $r->print(&Apache::loncommon::end_page());
4100: return OK;
4101: }
4102: if ($env{'form.posterlist'}) {
4103: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4104: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
4105: $env{'form.sortposts'});
4106: return OK;
4107: }
4108: if ($env{'form.userpick'}) {
4109: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
4110: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
4111: my $numpicks = @posters;
4112: my %discinfo;
4113: $discinfo{$symb.'_userpick'} = join('&',@posters);
4114: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4115: \%discinfo,$env{'user.domain'},$env{'user.name'});
4116: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4117: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
4118: '',$numpicks,$group);
4119: return OK;
4120: }
4121: if ($env{'form.applysort'}) {
4122: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4123: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4124: '',$env{'form.previous'},$env{'form.sortposts'},
4125: $env{'form.rolefilter'},$env{'form.statusfilter'},
4126: $env{'form.sectionpick'},$env{'form.grouppick'},
4127: undef,$group);
4128: return OK;
4129: } elsif ($env{'form.cmd'} eq 'sortfilter') {
4130: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4131: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
4132: return OK;
4133: } elsif ($env{'form.navtime'}) {
4134: my %discinfo = ();
4135: my @resources = ();
4136: if (defined($env{'form.navmaps'})) {
4137: if ($env{'form.navmaps'} =~ /:/) {
4138: @resources = split(/:/,$env{'form.navmaps'});
4139: } else {
4140: @resources = ("$env{'form.navmaps'}");
4141: }
4142: } else {
4143: &has_discussion(\@resources);
4144: }
4145: my $numitems = @resources;
4146: my $feedurl = '/adm/navmaps';
4147: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
4148: my %lt = &Apache::lonlocal::texthash(
4149: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
4150: );
4151: foreach my $res (@resources) {
4152: my $ressymb=$res;
4153: &Apache::lonenc::check_decrypt(\$ressymb);
4154: my $lastkey = $ressymb.'_lastread';
4155: $discinfo{$lastkey} = $env{'form.navtime'};
4156: }
4157: my $textline = '<b>'.
4158: &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
4159: $numitems).
4160: '</b>';
4161: if ($numitems > 0) {
4162: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4163: \%discinfo,$env{'user.domain'},$env{'user.name'});
4164: } else {
4165: $textline = "<b>$lt{'twnp'}</b>";
4166: }
4167: &Apache::loncommon::content_type($r,'text/html');
4168: $r->send_http_header;
4169: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
4170: my %onload;
4171:
4172: my $start_page=
4173: &Apache::loncommon::start_page('New posts marked as read',undef,
4174: {'redirect' => [2,$feedurl],
4175: 'only_body' => 1,
4176: 'add_entries' => \%onload});
4177: my $end_page = &Apache::loncommon::end_page();
4178: $r->print (<<ENDREDIR);
4179: $start_page
4180: <img align="right" src="$logo" />
4181: $textline
4182: <form name="reldt" action="$feedurl" target="loncapaclient">
4183: </form>
4184: <br />
4185: $end_page
4186: ENDREDIR
4187: return OK;
4188: } elsif ($env{'form.modifydisp'}) {
4189: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
4190: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
4191: split(/_/,$env{'form.changes'});
4192: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4193: $dispchgB,$markchg,$toggchg,$feedurl);
4194: return OK;
4195: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4196: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4197: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4198: $env{'form.toggon'} || $env{'form.markread'}) {
4199: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4200: my %discinfo;
4201: # ------------------------ Modify setting for read/unread toggle for each post
4202: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4203: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4204: # --------- Modify setting for identification of 'NEW' posts in this discussion
4205: if ($env{'form.markondisp'}) {
4206: $discinfo{$symb.'_lastread'} = time;
4207: $discinfo{$symb.'_markondisp'} = 1;
4208: }
4209: if ($env{'form.markonread'}) {
4210: if ( $env{'form.previous'} > 0 ) {
4211: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4212: }
4213: $discinfo{$symb.'_markondisp'} = 0;
4214: }
4215: # --------------------------------- Modify display setting for this discussion
4216: if ($env{'form.allposts'}) {
4217: $discinfo{$symb.'_showonlyunread'} = 0;
4218: $discinfo{$symb.'_showonlyunmark'} = 0;
4219: }
4220: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4221: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4222: # ----------------------------------------------------- Mark new posts not NEW
4223: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4224: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4225: \%discinfo,$env{'user.domain'},$env{'user.name'});
4226: my $previous=$env{'form.previous'};
4227: if ($env{'form.markondisp'}) { $previous=undef; }
4228: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4229: '0','0','','',$previous,'','','','','','',$group);
4230: return OK;
4231: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4232: # ----------------------------------------------------------------- Hide/unhide
4233: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4234: my ($symb,$idx)=split(/\:\:\:/,$entry);
4235: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4236: my $ressymb = &wrap_symb($symb);
4237:
4238: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4239: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4240: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4241: '0','0','','',$env{'form.previous'},'','','','',
4242: undef,undef,$group);
4243: return OK;
4244: }
4245:
4246: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4247: $cdom,$cnum);
4248:
4249: my $currenthidden=$contrib{'hidden'};
4250: my $currentstudenthidden=$contrib{'studenthidden'};
4251:
4252: if ($env{'form.hide'}) {
4253: $currenthidden.='.'.$idx.'.';
4254: unless ($seehidden) {
4255: $currentstudenthidden.='.'.$idx.'.';
4256: }
4257: } else {
4258: $currenthidden=~s/\.$idx\.//g;
4259: }
4260: my %newhash=('hidden' => $currenthidden);
4261: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4262: $newhash{'studenthidden'} = $currentstudenthidden;
4263: }
4264: if ($env{'form.hide'}) {
4265: my $changelast = 0;
4266: my $newlast;
4267: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4268: if ($changelast) {
4269: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4270: $cdom,$cnum);
4271: }
4272: }
4273: my $result;
4274: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4275: $cdom,$cnum) eq 'ok') {
4276: my $prefix=$symb.':'.$idx.':';
4277: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4278: '^'.$prefix);
4279: my ($totallikes,$totalunlikes);
4280: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4281: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4282: }
4283: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4284: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4285: }
4286: if ($totallikes || $totalunlikes) {
4287: my ($chglikes,$chgunlikes,$context);
4288: if ($env{'form.hide'}) {
4289: $chglikes = -1 * $totallikes;
4290: $chgunlikes = -1 * $totalunlikes;
4291: $context = 'hide';
4292: } else {
4293: $chglikes = $totallikes;
4294: $chgunlikes = $totalunlikes;
4295: $context = 'unhide';
4296: }
4297: &storediscussionlikes($chglikes,$chgunlikes,
4298: $contrib{$idx.':sendername'},
4299: $contrib{$idx.':senderdomain'},
4300: $env{'request.course.id'},
4301: $context);
4302:
4303: }
4304: $result = &mt('Changed discussion status');
4305: } else {
4306: $result = &mt('Discussion status unchanged');
4307: }
4308: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4309: $env{'form.previous'},undef,undef,undef,
4310: undef,undef,undef,$group);
4311: return OK;
4312: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4313: # ----------------------------------------------------------------- Like/unlike
4314: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4315: my ($symb,$idx)=split(/\:\:\:/,$entry);
4316: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4317: my $result;
4318: if ($idx > 0) {
4319: my $realsymb = &get_realsymb($symb);
4320: my $status='OPEN';
4321: if ($Apache::lonhomework::parsing_a_problem ||
4322: $Apache::lonhomework::parsing_a_task) {
4323: $status=$Apache::inputtags::status[-1];
4324: }
4325: if (&discussion_vote_available($status,$realsymb)) {
4326: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4327: $cdom,$cnum);
4328: my $ownpost;
4329: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4330: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4331: $ownpost = 1;
4332: }
4333: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4334: $result = &mt('Vote not registered.').' ';
4335: }
4336: if ($ownpost) {
4337: $result .= &mt('No voting for your own posts.');
4338: } elsif ($contrib{$idx.':hidden'}) {
4339: $result .= &mt('No voting for hidden posts.');
4340: } elsif ($contrib{$idx.':deleted'}) {
4341: $result .= &mt('No voting for deleted posts.');
4342: } else {
4343: #
4344: # Likes and unlikes are in db-file "disclikes" of the course
4345: # The prefix is the $symb to identify the resource discussion,
4346: # and the $idx to identify the entry
4347: #
4348: my $prefix=$symb.':'.$idx.':';
4349: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4350: '^'.$prefix);
4351:
4352: # Get current like or unlike status for the $idx for this user.
4353: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4354: my ($userlikes,$userunlikes);
4355: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4356: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4357: $userlikes = 1;
4358: }
4359: }
4360: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4361: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4362: $userunlikes = 1;
4363: }
4364: }
4365: # Get the current "likes" count
4366: my $likescount=$likes{$prefix.'likes'};
4367: # Find out if they already voted
4368: # Users cannot like a post twice, or unlike it twice.
4369: # They can change their mind, though.
4370: my $alreadyflag=0;
4371: my $votetype;
4372: if ($env{'form.like'}) {
4373: if ($userlikes) {
4374: $alreadyflag=1;
4375: } elsif ($userunlikes) {
4376: delete($likes{$prefix.'unlikers'}{$thisuser});
4377: $votetype = 'switch';
4378: $likescount++;
4379: } else {
4380: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4381: $likes{$prefix.'likers'}{$thisuser} = 1;
4382: } else {
4383: $likes{$prefix.'likers'} = {$thisuser => 1};
4384: }
4385: $likescount++;
4386: }
4387: } else {
4388: if ($userunlikes) {
4389: $alreadyflag=1;
4390: } elsif ($userlikes) {
4391: delete($likes{$prefix.'likers'}{$thisuser});
4392: $votetype = 'switch';
4393: $likescount--;
4394: } else {
4395: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4396: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4397: } else {
4398: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4399: }
4400: $likescount--;
4401: }
4402: }
4403: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4404: if ($alreadyflag) {
4405: if ($env{'form.like'}) {
4406: $result= &mt("'Like' already registered");
4407: } else {
4408: $result= &mt("'Unlike' already registered");
4409: }
4410: } else {
4411: my %newhash=($prefix.'likes' => $likescount,
4412: $prefix.'likers' => $likes{$prefix.'likers'},
4413: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4414: # Store data in db-file "disclikes"
4415: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4416: # Also store with the person who posted the liked/unliked entry
4417: my ($chglike,$chgunlike);
4418: if ($env{'form.like'}) {
4419: if ($votetype eq 'switch') {
4420: $chglike = 0;
4421: $chgunlike = -1;
4422: } else {
4423: $chglike = 1;
4424: $chgunlike = 0;
4425: }
4426: &storediscussionlikes($chglike,$chgunlike,
4427: $contrib{$idx.':sendername'},
4428: $contrib{$idx.':senderdomain'},
4429: $env{'request.course.id'},'like');
4430: $result=&mt("Registered 'Like'");
4431: } else {
4432: if ($votetype eq 'switch') {
4433: $chglike = -1;
4434: $chgunlike = 0;
4435: } else {
4436: $chglike = 0;
4437: $chgunlike = 1;
4438: }
4439: &storediscussionlikes($chglike,$chgunlike,
4440: $contrib{$idx.':sendername'},
4441: $contrib{$idx.':senderdomain'},
4442: $env{'request.course.id'},'unlike');
4443: $result=&mt("Registered 'Unlike'");
4444: }
4445: } else {
4446: # Oops, something went wrong
4447: $result=&mt("Failed to register vote");
4448: }
4449: }
4450: }
4451: } else {
4452: $result=&mt('Voting unavailable for this discussion');
4453: }
4454: } else {
4455: $result=&mt('Invalid post number');
4456: }
4457: &redirect_back($r,$feedurl,$result.'<br />',
4458: '0','0','','',$env{'form.previous'},undef,undef,undef,
4459: undef,undef,undef,$group);
4460: return OK;
4461: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4462: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4463: if ($env{'form.cmd'} eq 'threadedoff') {
4464: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4465: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4466: &Apache::lonnet::del('environment',['threadeddiscussion']);
4467: &Apache::lonnet::delenv('environment.threadeddiscussion');
4468: } else {
4469: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4470: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4471: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4472: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4473: }
4474: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4475: '0','0','','',$env{'form.previous'},undef,undef,undef,
4476: undef,undef,undef,$group);
4477: return OK;
4478: } elsif ($env{'form.deldisc'}) {
4479: # --------------------------------------------------------------- Hide for good
4480: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4481: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4482: my $ressymb=&wrap_symb($symb);
4483:
4484: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4485: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4486: '0','0','','',$env{'form.previous'},'','','','',
4487: undef,undef,$group);
4488: return OK;
4489: }
4490: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4491: $cdom,$cnum);
4492: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4493: if ($changelast) {
4494: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4495: $cdom,$cnum);
4496: }
4497: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4498:
4499: my $result;
4500: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4501: $cdom,$cnum) eq 'ok') {
4502: $result = &mt('Changed discussion status');
4503: my $prefix=$symb.':'.$idx.':';
4504: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4505: '^'.$prefix);
4506: my ($totallikes,$totalunlikes);
4507: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4508: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4509: }
4510: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4511: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4512: }
4513: if ($totallikes || $totalunlikes) {
4514: my $chglikes = -1 * $totallikes;
4515: my $chgunlikes = -1 * $totalunlikes;
4516: &storediscussionlikes($chglikes,$chgunlikes,
4517: $contrib{$idx.':sendername'},
4518: $contrib{$idx.':senderdomain'},
4519: $env{'request.course.id'},
4520: 'delete');
4521: }
4522: } else {
4523: $result = &mt('Discussion status unchanged');
4524: }
4525: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4526: $env{'form.previous'},undef,undef,undef,
4527: undef,undef,undef,$group);
4528: return OK;
4529: } elsif ($env{'form.preview'}) {
4530: # -------------------------------------------------------- User wants a preview
4531: &show_preview($r);
4532: return OK;
4533: } elsif ($env{'form.attach'}) {
4534: # -------------------------------------------------------- Work on attachments
4535: &Apache::loncommon::content_type($r,'text/html');
4536: $r->send_http_header;
4537: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4538: my (@currnewattach,@currdelold,@keepold,$toolarge);
4539: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4540: if (exists($env{'form.addnewattach.filename'})) {
4541: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4542: my $subdir = 'feedback/'.$env{'form.timestamp'};
4543: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4544: push(@currnewattach, $newattachment);
4545: } else {
4546: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4547: }
4548: }
4549: my $attachmenturls;
4550: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4551: my $idx = $env{'form.idx'};
4552: if ($idx) {
4553: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4554: $cdom,$cnum);
4555: $attachmenturls = $contrib{$idx.':attachmenturl'};
4556: }
4557: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4558: $attachmenturls,$attachmax{'text'},$toolarge);
4559: return OK;
4560: } elsif ($env{'form.export'}) {
4561: &Apache::loncommon::content_type($r,'text/html');
4562: $r->send_http_header;
4563: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4564: my $mode='board';
4565: my $status='OPEN';
4566: my $previous=$env{'form.previous'};
4567: if ($feedurl =~ /$LONCAPA::assess_re/) {
4568: $mode='problem';
4569: $status=$Apache::inputtags::status[-1];
4570: }
4571:
4572: my $discussion = &list_discussion($mode,$status,$symb);
4573: my $start_page =
4574: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4575: my $end_page =
4576: &Apache::loncommon::end_page();
4577: $r->print($start_page.$discussion.$end_page);
4578: return OK;
4579:
4580: } elsif ($env{'form.undeleteall'}) {
4581: &Apache::loncommon::content_type($r,'text/html');
4582: $r->send_http_header;
4583: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4584: my $ressymb=&wrap_symb($symb);
4585: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4586: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4587: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4588: $cdom,$cnum);
4589: $contrib{'deleted'} =~ s/^\.//;
4590: $contrib{'deleted'} =~ s/\.$//;
4591: my $confirm_msg;
4592: if ($contrib{'deleted'} ne '') {
4593: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4594: $cdom,$cnum) eq 'ok') {
4595: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4596: my @ids = split(/\.\./,$contrib{'deleted'});
4597: my (%chglikes,%chgunlikes);
4598: foreach my $idx (@ids) {
4599: my $uname = $contrib{$idx.':sendername'};
4600: my $udom = $contrib{$idx.':senderdomain'};
4601: my ($totallikes,$totalunlikes);
4602: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4603: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4604: }
4605: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4606: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4607: }
4608: if ($totallikes || $totalunlikes) {
4609: $chglikes{$uname.':'.$udom} += $totallikes;
4610: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4611: }
4612: }
4613: foreach my $user (keys(%chglikes)) {
4614: my ($uname,$udom) = split(/:/,$user);
4615: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4616: $uname,$udom,$env{'request.course.id'},
4617: 'undelete');
4618: }
4619: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
4620: } else {
4621: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
4622: }
4623: } else {
4624: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
4625: }
4626: $r->print(
4627: '<br />'
4628: .&Apache::loncommon::confirmwrapper($confirm_msg)
4629: .&Apache::lonhtmlcommon::actionbox(
4630: ["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
4631: );
4632: }
4633: $r->print(&Apache::loncommon::end_page());
4634: return OK;
4635: } else {
4636: # ------------------------------------------------------------- Normal feedback
4637: my $feedurl=$env{'form.postdata'};
4638: $feedurl=~s/^https?\:\/\///;
4639: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4640: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4641: $feedurl=~s/\?.+$//;
4642:
4643: my $symb;
4644: if ($env{'form.replydisc'}) {
4645: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4646: } elsif ($env{'form.editdisc'}) {
4647: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4648: } elsif ($env{'form.origpage'}) {
4649: $symb="";
4650: } elsif ($env{'form.sendmessageonly'}) {
4651: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4652: } else {
4653: $symb=&Apache::lonnet::symbread($feedurl);
4654: }
4655: unless ($symb) {
4656: $symb=$env{'form.symb'};
4657: }
4658: if (defined($symb)) {
4659: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4660: } else {
4661: # backward compatibility (bulletin boards used to be 'wrapped')
4662: &Apache::lonenc::check_decrypt(\$feedurl);
4663: &dewrapper(\$feedurl);
4664: }
4665: my $goahead=1;
4666: if ($feedurl=~/$LONCAPA::assess_re/) {
4667: unless ($symb) { $goahead=0; }
4668: }
4669: if (!$goahead) {
4670: # Ambiguous Problem Resource
4671: $r->internal_redirect('/adm/ambiguous');
4672: return OK;
4673: }
4674: if ($feedurl eq '') {
4675: &Apache::loncommon::content_type($r,'text/html');
4676: $r->send_http_header;
4677: &no_redirect_back($r);
4678: return OK;
4679: }
4680: # Go ahead with feedback, no ambiguous reference
4681: unless (
4682: (
4683: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4684: )
4685: ||
4686: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4687: ||
4688: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4689: ||
4690: (($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/))
4691: ) {
4692: &Apache::loncommon::content_type($r,'text/html');
4693: $r->send_http_header;
4694: # Unable to give feedback
4695: &Apache::lonenc::check_encrypt(\$feedurl);
4696: &no_redirect_back($r,$feedurl,2);
4697: return OK;
4698: }
4699: # --------------------------------------------------- Print login screen header
4700: unless ($env{'form.sendit'}) {
4701: &Apache::lonenc::check_encrypt(\$feedurl);
4702: &Apache::loncommon::content_type($r,'text/html');
4703: $r->send_http_header;
4704: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4705: my ($blocked,$blocktext) =
4706: &Apache::loncommon::blocking_status('boards');
4707: if ($blocked) {
4708: $r->print(&blocked_reply_or_edit($blocktext));
4709: return OK;
4710: }
4711: }
4712: my $options=&screen_header($feedurl,$symb,$group);
4713: if ($options) {
4714: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4715: } else {
4716: &fail_redirect($r,$feedurl,2);
4717: }
4718: return OK;
4719: }
4720:
4721: # Get previous user input
4722: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4723: $symb,$env{'user.name'},$env{'user.domain'},
4724: $env{'request.course.id'});
4725:
4726: # Get output from resource
4727: &Apache::lonenc::check_encrypt(\$feedurl);
4728: my $usersaw=&resource_output($feedurl);
4729:
4730: # Get resource answer (need to allow student to view grades for this to work)
4731: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4732: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4733: my $useranswer=
4734: &Apache::loncommon::get_student_answers(
4735: $usersymb,$env{'user.name'},$env{'user.domain'},
4736: $env{'request.course.id'});
4737: &Apache::lonnet::delenv('allowed.vgr');
4738: # Get attachments, if any, and not too large
4739: my $attachmenturl='';
4740: my $toolarge='';
4741: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4742: ($env{'form.replydisc'})) {
4743: my ($symb,$idx);
4744: if ($env{'form.replydisc'}) {
4745: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4746: } elsif ($env{'form.editdisc'}) {
4747: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4748: } elsif ($env{'form.origpage'}) {
4749: $symb = $env{'form.symb'};
4750: }
4751: &Apache::lonenc::check_decrypt(\$symb);
4752: my @currnewattach = ();
4753: my @deloldattach = ();
4754: my @keepold = ();
4755: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4756: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4757: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4758: } elsif ($env{'form.attachment.filename'}) {
4759: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4760: my $now = time;
4761: my $subdir = 'feedback/'.$now;
4762: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4763: } else {
4764: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4765: }
4766: }
4767: # Filter HTML out of message (could be nasty)
4768: my $override;
4769: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4770: $override = 1;
4771: }
4772: my $message=&clear_out_html($env{'form.comment'},$override);
4773:
4774: # Assemble email
4775: my ($email,$citations)=&assemble_email($message,$prevattempts,
4776: $usersaw,$useranswer);
4777:
4778: # Who gets this?
4779: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4780:
4781: # Actually send mail
4782: my $clientip = &Apache::lonnet::get_requestor_ip($r);
4783: my ($status,$numsent,$delay)=&send_msg(&clear_out_html($env{'form.subject'}),
4784: $feedurl,$email,$citations,
4785: $attachmenturl,$usersymb,$clientip,%to);
4786:
4787: # Discussion? Store that.
4788: my $numpost=0;
4789: if ( ($env{'form.discuss'} ne ''
4790: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4791: || $env{'form.anondiscuss'} ne '') {
4792: my $subject = &clear_out_html($env{'form.subject'});
4793: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4794: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4795: $subject,$group);
4796: $numpost++;
4797: }
4798:
4799: # Add to blog?
4800:
4801: my $blog='';
4802: if ($env{'form.blog'}) {
4803: my $subject = &clear_out_html($env{'form.subject'});
4804: $status.=&Apache::lonrss::addentry($env{'user.name'},
4805: $env{'user.domain'},
4806: 'CourseBlog_'.$env{'request.course.id'},
4807: $subject,$message,$feedurl,'public');
4808: if (&Apache::loncommon::course_type() eq 'Community') {
4809: $blog='<br />'.&mt('Added to my community blog').'<br />';
4810: } else {
4811: $blog='<br />'.&mt('Added to my course blog').'<br />';
4812: }
4813: }
4814:
4815: # Receipt screen and redirect back to where came from
4816: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
4817: undef,undef,undef,undef,undef,undef,$group,$toolarge,$delay);
4818: }
4819: return OK;
4820: }
4821:
4822: sub blocked_reply_or_edit {
4823: my ($blocktext) = @_;
4824: return
4825: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4826: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4827: &mt('Back to previous page').
4828: &Apache::loncommon::end_page();
4829: }
4830:
4831: sub wrap_symb {
4832: my ($ressymb)=@_;
4833: if ($ressymb =~ /bulletin___\d+___/) {
4834: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4835: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4836: }
4837: }
4838: return $ressymb;
4839: }
4840:
4841: sub dewrapper {
4842: my ($feedurl)=@_;
4843: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4844: $$feedurl=~s|^/adm/wrapper||;
4845: }
4846: }
4847:
4848: sub get_feedurl {
4849: my ($symb)=@_;
4850: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4851: my $feedurl = &Apache::lonnet::clutter($url);
4852: &dewrapper(\$feedurl);
4853: return $feedurl;
4854: }
4855:
4856: sub get_feedurl_and_clean_symb {
4857: my ($symb)=@_;
4858: &Apache::lonenc::check_decrypt(\$symb);
4859: # backward compatibility (bulletin boards used to be 'wrapped')
4860: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4861: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4862: }
4863: my $feedurl = &get_feedurl($symb);
4864: return ($symb,$feedurl);
4865: }
4866:
4867: sub editing_allowed {
4868: my ($postid,$group) = @_;
4869: $postid = &unescape($postid);
4870: my $can_edit = 0;
4871: if ($group ne '') {
4872: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4873: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4874: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4875: if (&check_group_priv($group,'egp') eq 'ok') {
4876: $can_edit = 1;
4877: }
4878: return $can_edit;
4879: }
4880: }
4881: my $cid = $env{'request.course.id'};
4882: my $role = (split(/\./,$env{'request.role'}))[0];
4883: my $section = $env{'request.course.sec'};
4884: my $allow_editing_config =
4885: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4886: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4887: $can_edit = 1;
4888: } else {
4889: foreach my $editor (split(/,/,$allow_editing_config)) {
4890: my ($editor_role,$editor_sec) = split(/:/,$editor);
4891: if ($editor_role eq $role
4892: && defined($editor_sec)
4893: && defined($section)
4894: && $editor_sec eq $section) {
4895: $can_edit = 1;
4896: last;
4897: }
4898: if ($editor_role eq $role
4899: && !defined($editor_sec)) {
4900: $can_edit = 1;
4901: }
4902: }
4903: }
4904: return $can_edit;
4905: }
4906:
4907: sub check_group_priv {
4908: my ($group,$grp_priv) = @_;
4909: foreach my $priv ('mdg','vcg') {
4910: my $checkcourse = $env{'request.course.id'}.
4911: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4912: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4913: return 'ok';
4914: }
4915: }
4916: if ($grp_priv && $group ne '') {
4917: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4918: return 'ok';
4919: }
4920: }
4921: return '';
4922: }
4923:
4924: sub group_args {
4925: my ($group) = @_;
4926: if ($group eq '') { return ''; }
4927: my $extra_args = '&group='.$group;
4928: if (exists($env{'form.ref'})) {
4929: $extra_args .= '&ref='.$env{'form.ref'};
4930: }
4931: return $extra_args;
4932: }
4933:
4934: sub get_resource_title {
4935: my ($symb,$feedurl) = @_;
4936: my ($restitle,$plainurl);
4937: if (defined($symb)) {
4938: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4939: $restitle = &Apache::lonnet::gettitle($plain_symb);
4940: }
4941: if (defined($feedurl)) {
4942: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4943: }
4944: if (!defined($restitle)) {
4945: if (defined($feedurl)) {
4946: $restitle = &Apache::lonnet::gettitle($plainurl);
4947: }
4948: }
4949: if ($plainurl ne $feedurl) {
4950: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4951: if ($plain_filename eq $restitle) {
4952: $restitle = &mt('Untitled resource');
4953: }
4954: }
4955: if ($restitle eq '') {
4956: $restitle = &mt('Untitled resource');
4957: }
4958: return $restitle;
4959: }
4960:
4961: 1;
4962: __END__
4963:
4964:
4965: =pod
4966:
4967: =head1 NAME
4968:
4969: Apache::lonfeedback.pm
4970:
4971: =head1 SYNOPSIS
4972:
4973: Handles feedback from students to instructors and system administrators.
4974:
4975: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4976:
4977: Used by lonmsg.pm.
4978:
4979: This is part of the LearningOnline Network with CAPA project
4980: described at http://www.lon-capa.org.
4981:
4982: =head1 OVERVIEW
4983:
4984: None
4985:
4986: =head1 SUBROUTINES
4987:
4988: =over
4989:
4990: =item discussion_open()
4991:
4992: =item discussion_visible()
4993:
4994: =item discussion_vote_available()
4995:
4996: =item get_realsymb()
4997:
4998: =item list_discussion()
4999:
5000: =item can_see_hidden()
5001:
5002: =item discussion_link()
5003:
5004: =item send_feedback_link()
5005:
5006: =item send_message_link()
5007:
5008: =item action_links_bar()
5009:
5010: =item postingform_display()
5011:
5012: =item build_posting_display
5013:
5014: =item filter_regexp()
5015:
5016: =item get_post_contents()
5017:
5018: =item replicate_attachments()
5019:
5020: =item mail_screen()
5021:
5022: =item print_display_options()
5023:
5024: =item print_sortfilter_options()
5025:
5026: =item print_showposters()
5027:
5028: =item get_post_versions()
5029:
5030: =item get_post_attachments()
5031:
5032: =item fail_redirect()
5033:
5034: =item redirect_back()
5035:
5036: =item no_redirect_back()
5037:
5038: =item screen_header()
5039:
5040: =item resource_output()
5041:
5042: =item clear_out_html()
5043:
5044: =item assemble_email()
5045:
5046: =item feedback_available()
5047:
5048: =item send_msg()
5049:
5050: =item adddiscuss()
5051:
5052: =item get_discussion_info()
5053:
5054: =item show_preview()
5055:
5056: =item newline_to_br()
5057:
5058: =item tidy_html()
5059:
5060: =item generate_preview_button()
5061:
5062: =item modify_attachments()
5063:
5064: =item process_attachments()
5065:
5066: =item generate_attachments_button()
5067:
5068: =item extract_attachments()
5069:
5070: =item construct_attachmenturl()
5071:
5072: =item add_blog_checkbox()
5073:
5074: =item has_discussion()
5075:
5076: =item sort_filter_names()
5077:
5078: =item handler()
5079:
5080: =item blocked_reply_or_edit()
5081:
5082: =item wrap_symb()
5083:
5084: =item dewrapper()
5085:
5086: =item get_feedurl()
5087:
5088: =item get_feedurl_and_clean_symb()
5089:
5090: =item editing_allowed()
5091:
5092: =item check_group_priv()
5093:
5094: =item group_args()
5095:
5096: =item get_resource_title()
5097:
5098: =back
5099:
5100: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonfeedback.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface