--- loncom/interface/lonfeedback.pm 2001/07/25 16:08:38 1.10 +++ loncom/interface/lonfeedback.pm 2021/12/31 20:39:00 1.370.2.5.2.1 @@ -1,19 +1,31 @@ # The LearningOnline Network # Feedback # -# (Internal Server Error Handler +# $Id: lonfeedback.pm,v 1.370.2.5.2.1 2021/12/31 20:39:00 raeburn Exp $ # -# (Login Screen -# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14, -# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer) -# -# 3/1/1 Gerd Kortemeyer) -# -# 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer -# 2/9 Guy Albertelli -# 2/10 Gerd Kortemeyer -# 2/13 Guy Albertelli -# 7/25 Gerd Kortemeyer +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# +### package Apache::lonfeedback; @@ -21,158 +33,2986 @@ use strict; use Apache::Constants qw(:common); use Apache::lonmsg(); use Apache::loncommon(); +use Apache::lontexconvert(); +use Apache::lonlocal; # must not have () +use Apache::lonnet; +use Apache::lonhtmlcommon(); +use Apache::lonnavmaps; +use Apache::lonenc(); +use Apache::lonrss(); +use HTML::LCParser(); +#use HTML::Tidy::libXML; +use Apache::lonspeller(); +use Apache::longroup; +use Archive::Zip qw( :ERROR_CODES ); +use LONCAPA qw(:DEFAULT :match); -sub mail_screen { - my ($r,$feedurl,$options) = @_; - $r->print(< - -The LearningOnline Network with CAPA - - - - - -

Feedback

-

$feedurl

-
- -Please check at least one of the following feedback types: -$options
-My question/comment/feedback:

-

- - + +END + + my ($textareaheader,$textareaclass); + if (&Apache::lonhtmlcommon::htmlareabrowser()) { + $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive(); + $textareaclass = 'class="LC_richDefaultOff"'; + if ($env{'request.course.id'}) { + unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) { + undef($textareaclass); + } + } + } + + # Breadcrumbs + my $brcrum = [{'href' => '', + 'text' => 'Resource Feedback and Discussion'}]; + + my %onload = ('onload' => 'window.focus();setposttype();'); + my %parms=('add_entries' => \%onload); + if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; } + my $start_page= + &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms); + + if ($quote ne '') { + $quote = &HTML::Entities::decode($quote); + unless (&contains_block_html($quote)) { + &newline_to_br(\$quote); + } + $quote=&Apache::lonhtmlcommon::start_pick_box(). + &Apache::lonhtmlcommon::row_title(&mt('Quote')). + &Apache::lontexconvert::msgtexconverted($quote). + &Apache::lonhtmlcommon::row_closure(1). + &Apache::lonhtmlcommon::end_pick_box(); + } + my $header=''; + unless ($env{'form.modal'}) { + $header="

$restitle

"; + } + $r->print(<$lt{'myqu'} +$header + +$prevtag + + +END + if ($env{'form.replydisc'}) { + $r->print(< +END + } elsif ($env{'form.editdisc'}) { + $r->print(< + +END + } + $r->print(< +END +$r->print(&Apache::lonhtmlcommon::start_pick_box()); +$r->print(< +$textareaheader +

+

+$latexHelp +

+

+END + + + $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject'))); + $r->print('

'); + $r->print(&Apache::lonhtmlcommon::row_closure()); + $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message'))); + $r->print(''); + $r->print(&Apache::lonhtmlcommon::row_closure(1)); + $r->print(&Apache::lonhtmlcommon::end_pick_box()); + + if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) { + if ($env{'form.origpage'}) { + foreach my $attach (@currnewattach) { + $r->print(''."\n"); + } + foreach my $oldatt (@currdelold) { + $r->print(''."\n"); + } + } + if ($env{'form.editdisc'}) { + if ($attachmenturls) { + &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold); + $attachnum = scalar(keys(%currattach)); + foreach my $key (keys(%currattach)) { + $r->print(''."\n"); + } + } + } + } else { + $r->print(< +$lt{'atta'} $attachmaxtext: + +

+END + } + if (exists($env{'form.group'})) { + $r->print(''); + } + if (exists($env{'form.ref'})) { + $r->print(''); + } + $r->print(< + - - -ENDDOCUMENT +END + if ($env{'form.editdisc'} || $env{'form.replydisc'}) { + my $now = time; + my $ressymb = $symb; + &Apache::lonenc::check_encrypt(\$ressymb); + my $postidx = ''; + if ($env{'form.editdisc'}) { + $postidx = $idx; + } + if (@currnewattach > 0) { + $attachnum += @currnewattach; + } + my $blockblog = &Apache::loncommon::blocking_status('blogs'); + if ($attachnum > 0) { + if (@currnewattach > 0) { + $newattachmsg .= '
'.&mt('New attachments').'
'; + if (@currnewattach > 1) { + $newattachmsg .= '
    '; + foreach my $item (@currnewattach) { + $item =~ m#.*/([^/]+)$#; + $newattachmsg .= '
  1. '.$1.'
    2. '."\n"; + } + $newattachmsg .= '
'."\n"; + } else { + $currnewattach[0] =~ m#.*/([^/]+)$#; + $newattachmsg .= ''.$1.'
'."\n"; + } + } + if ($attachmsg) { + $r->print("
$lt{'reta'}:$attachmsg
\n"); + } + if ($newattachmsg) { + $r->print("$newattachmsg"); + } + } + $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog)); + } + $r->print(&generate_preview_button(). + &Apache::loncommon::end_page()); + +} + +sub print_display_options { + my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_; + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + + my $function = &Apache::loncommon::get_users_function(); + my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg', + $env{'user.domain'}); + + my %lt = &Apache::lonlocal::texthash( + 'pref' => 'Display Preference', + 'curr' => 'Current setting ', + 'actn' => 'Action', + 'deff' => 'Default for all discussions', + 'prca' => 'Preferences can be set for this discussion that determine ....', + 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and', + 'unwh' => 'Under what circumstances posts are identified as "NEW", and', + 'wipa' => 'Whether individual posts can be marked as read/unread', + 'allposts' => 'All posts', + 'unread' => 'New posts only', + 'unmark' => 'Posts not marked read', + 'ondisp' => 'Once displayed', + 'onmark' => 'Once marked not NEW', + 'toggon' => 'Shown', + 'toggoff' => 'Not shown', + 'disa' => 'Posts displayed?', + 'npmr' => 'New posts cease to be identified as "NEW"?', + 'dotm' => 'Option to mark each post as read/unread?', + 'chgt' => 'Change to ', + 'mkdf' => 'Set to ', + 'yhni' => 'You have not indicated that you wish to change any of the discussion settings', + 'ywbr' => 'You will be returned to the previous page if you click OK.' + ); + my %js_lt = &Apache::lonlocal::texthash( + 'yhni' => 'You have not indicated that you wish to change any of the discussion settings', + 'ywbr' => 'You will be returned to the previous page if you click OK.' + ); + &js_escape(\%js_lt); + + my $dispchangeA = $lt{'unread'}; + my $dispchangeB = $lt{'unmark'}; + my $markchange = $lt{'ondisp'}; + my $toggchange = $lt{'toggon'}; + my $currdisp = $lt{'allposts'}; + my $currmark = $lt{'onmark'}; + my $discdisp = 'allposts'; + my $discmark = 'onmark'; + my $currtogg = $lt{'toggoff'}; + my $disctogg = 'toggoff'; + + if ($dispchgA eq 'allposts') { + $dispchangeA = $lt{'allposts'}; + $currdisp = $lt{'unread'}; + $discdisp = 'unread'; + } + + if ($markchg eq 'markonread') { + $markchange = $lt{'onmark'}; + $currmark = $lt{'ondisp'}; + $discmark = 'ondisp'; + } + + if ($dispchgB eq 'onlyunread') { + $dispchangeB = $lt{'unread'}; + $currdisp = $lt{'unmark'}; + $discdisp = 'unmark'; + } + if ($toggchg eq 'toggoff') { + $toggchange = $lt{'toggoff'}; + $currtogg = $lt{'toggon'}; + $disctogg = 'toggon'; + } + + my $js = < +function discdispChk(caller) { + var disctogg = '$toggchg' + if (caller == 0) { + if (document.modifydisp.discdisp[0].checked == true) { + if (document.modifydisp.discdisp[1].checked == true) { + document.modifydisp.discdisp[1].checked = false + } + } + } + if (caller == 1) { + if (document.modifydisp.discdisp[1].checked == true) { + if (document.modifydisp.discdisp[0].checked == true) { + document.modifydisp.discdisp[0].checked = false + } + if (disctogg == 'toggon') { + document.modifydisp.disctogg.checked = true + } + if (disctogg == 'toggoff') { + document.modifydisp.disctogg.checked = false + } + } + } + if (caller == 2) { + var dispchgB = '$dispchgB' + if (disctogg == 'toggoff') { + if (document.modifydisp.disctogg.checked == true) { + if (dispchgB == 'onlyunmark') { + document.modifydisp.discdisp[1].checked = false + } + } + } + } +} + +function setDisp() { + var prev = "$previous" + var chktotal = 0 + if (document.modifydisp.discdisp[0].checked == true) { + document.modifydisp.$dispchgA.value = "$symb" + chktotal ++ + } + if (document.modifydisp.discdisp[1].checked == true) { + document.modifydisp.$dispchgB.value = "$symb" + chktotal ++ + } + if (document.modifydisp.discmark.checked == true) { + document.modifydisp.$markchg.value = "$symb" + chktotal ++ + } + if (document.modifydisp.disctogg.checked == true) { + document.modifydisp.$toggchg.value = "$symb" + chktotal ++ + } + if (chktotal > 0) { + document.modifydisp.submit() + } else { + if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) { + if (prev > 0) { + location.href = "$feedurl?previous=$previous" + } else { + location.href = "$feedurl" + } + } + } +} + +END + + + my $start_page = + &Apache::loncommon::start_page('Discussion display options',$js); + my $end_page = + &Apache::loncommon::end_page(); + $r->print(< +$lt{'sdpf'}
$lt{'prca'}
  1. $lt{'whpo'}
  2. $lt{'unwh'}
  3. $lt{'wipa'}
+
+END + $r->print(&Apache::loncommon::start_data_table()); + $r->print(< + $lt{'pref'} + $lt{'curr'} + $lt{'actn'}? + +END + $r->print(&Apache::loncommon::start_data_table_row()); + $r->print(<$lt{'disa'} + $lt{$discdisp} + +
+ + +END + $r->print(&Apache::loncommon::end_data_table_row()); + $r->print(&Apache::loncommon::start_data_table_row()); + $r->print(<$lt{'npmr'} + $lt{$discmark} + +END + $r->print(&Apache::loncommon::end_data_table_row()); + $r->print(&Apache::loncommon::start_data_table_row()); + $r->print(<$lt{'dotm'} + $lt{$disctogg} + +END + my $save = &mt('Save'); + $r->print(&Apache::loncommon::end_data_table_row()); + $r->print(&Apache::loncommon::end_data_table()); + $r->print(< +
+ + + + + + + +END + if (exists($env{'form.group'})) { + $r->print(''); + } + if (exists($env{'form.ref'})) { + $r->print(''); + } + $r->print(" +
+
+ +$end_page + "); + return; +} + +sub print_sortfilter_options { + my ($r,$symb,$previous,$feedurl) = @_; + + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + + &Apache::lonenc::check_encrypt(\$symb); + my @sections; + my $section_sel = ''; + my $numvisible = 5; + my @groups; + my $group_sel = ''; + my $numgroupvis = 5; + my %sectioncount = &Apache::loncommon::get_sections(); + my @courseroles = qw(st ad ep ta in); + my $crstype = &Apache::loncommon::course_type(); + my $ccrole = 'cc'; + if ($crstype eq 'Community') { + $ccrole = 'co'; + } + push(@courseroles,$ccrole); + + if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section + @sections = ('all',$env{'request.course.sec'}); + $numvisible = 2; + } else { + @sections = sort {$a cmp $b} keys(%sectioncount); + if (scalar(@sections) < 4) { + $numvisible = scalar(@sections) + 1; + } + unshift(@sections,'all'); # Put 'all' at the front of the list + + } + foreach my $sec (@sections) { + $section_sel .= " \n"; + } + + if (&check_group_priv() eq 'ok') { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum); + @groups = sort {$a cmp $b} keys(%curr_groups); + if (scalar(@groups) < 4) { + $numgroupvis = scalar(@groups) + 1; + } + unshift(@groups,'all'); # Put 'all' at the front of the list + } else { + my @coursegroups = split(/:/,$env{'request.course.groups'}); + if (@coursegroups > 0) { + @coursegroups = sort {$a cmp $b} @coursegroups; + @groups = ('all',@coursegroups); + if (scalar(@groups) < 4) { + $numgroupvis = scalar(@groups) + 1; + } + } else { + @groups = ('all'); + $numgroupvis = 1; + } + } + foreach my $group (@groups) { + $group_sel .= " \n"; + } + + my $function = &Apache::loncommon::get_users_function(); + my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg', + $env{'user.domain'}); + my %lt = &Apache::lonlocal::texthash( + 'diop' => 'Display Options', + 'curr' => 'Current setting ', + 'actn' => 'Action', + 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.', + 'soor' => 'Sort order', + 'spur' => 'Specific user roles', + 'sprs' => 'Specific role status', + 'spse' => 'Specific sections', + 'spgr' => 'Specific groups', + 'psub' => 'Pick specific users (by name)', + 'shal' => 'Show a list of current posters', + 'stor' => 'Save changes', + ); + + my %sort_types = (); + my %role_types = (); + my %status_types = (); + &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype); + + my $js = < +function verifyFilter() { + var rolenum = 0 + for (var i=0; i +END + + my $start_page= + &Apache::loncommon::start_page('Discussion options',$js); + my $end_page= + &Apache::loncommon::end_page(); + + $r->print(< +$lt{'diso'}
$lt{'prca'} +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + +
$lt{'soor'} $lt{'sprs'} $lt{'spur'} $lt{'spse'} $lt{'spgr'} $lt{'psub'}
+ +   + +   + +   + +   + +  
+
+ + + + + +END + if (exists($env{'form.group'})) { + $r->print(''); + } + if (exists($env{'form.ref'})) { + $r->print(''); + } + $r->print(" +
+
+ +$end_page +"); +} + +sub print_showposters { + my ($r,$symb,$previous,$feedurl,$sortposts) = @_; + + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + + &Apache::lonenc::check_encrypt(\$symb); + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $group = $env{'form.group'}; + my $ressymb = &wrap_symb($symb); + my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum); + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + my %namesort = (); + my %postcounts = (); + + my %lt = &Apache::lonlocal::texthash( + sele => 'Select', + full => 'Fullname', + usdo => 'Username:domain', + post => 'Posts', + ); + if ($contrib{'version'}) { + for (my $idx=1;$idx<=$contrib{'version'};$idx++) { + my $hidden=($contrib{'hidden'}=~/\.$idx\./); + my $deleted=($contrib{'deleted'}=~/\.$idx\./); + unless ((($hidden) && (!$seehidden)) || ($deleted)) { + if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) { + my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'}); + my $lastname = $names{'lastname'}; + my $firstname = $names{'firstname'}; + if ($lastname eq '') { + $lastname = '_'; + } + if ($firstname eq '') { + $firstname = '_'; + } + unless (defined($namesort{$lastname})) { + %{$namesort{$lastname}} = (); + } + my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'}; + $postcounts{$poster} ++; + if (defined($namesort{$lastname}{$firstname})) { + if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) { + push(@{$namesort{$lastname}{$firstname}}, $poster); + } + } else { + @{$namesort{$lastname}{$firstname}} = ("$poster"); + } + } + } + } + } + + my $start_page = &Apache::loncommon::start_page('Discussion options'); + my $table_start =&Apache::loncommon::start_data_table(); + $r->print(< +
+ $table_start + + # + $lt{'sele'} + $lt{'full'} ($lt{'usdo'}) + $lt{'post'} + +END + my $count = 0; + foreach my $last (sort(keys(%namesort))) { + foreach my $first (sort(keys(%{$namesort{$last}}))) { + foreach my $user (sort(@{$namesort{$last}{$first}})) { + my ($uname,$udom) = split(/:/,$user); + if (!$uname || !$udom) { + next; + } else { + $count ++; + $r->print(&Apache::loncommon::start_data_table_row(). + ''.$count.' + + '.$postcounts{$user}.''. + &Apache::loncommon::end_data_table_row()); + } + } + } + } + $r->print(&Apache::loncommon::end_data_table()); + my $end_page = &Apache::loncommon::end_page(); + $r->print(< + + + + + +$end_page +END +} + +sub get_post_versions { + my ($versions,$incoming,$htmldecode,$numver) = @_; + if ($incoming =~ /^/) { + my $p = HTML::LCParser->new(\$incoming); + my $done = 0; + + while ( (my $token = $p->get_tag("version")) && (!$done)) { + my $num = $token->[1]{num}; + my $text = $p->get_text("/version"); + if (defined($numver)) { + if ($num == $numver) { + if ($htmldecode) { + $text = &HTML::Entities::decode($text); + } + $$versions{$numver}=$text; + $done = 1; + } + } else { + if ($htmldecode) { + $text = &HTML::Entities::decode($text); + } + $$versions{$num}=$text; + } + } + } else { + if (!defined($numver)) { + $numver = 0; + } + if ($htmldecode) { + $$versions{$numver} = $incoming; + } else { + $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"'); + } + } + return; +} + +sub get_post_attachments { + my ($attachments,$attachmenturls) = @_; + my $num; + if ($attachmenturls =~ m/^/) { + my $p = HTML::LCParser->new(\$attachmenturls); + while (my $token = $p->get_tag("attachment","filename","post")) { + if ($token->[0] eq "attachment") { + $num = $token->[1]{id}; + %{$$attachments{$num}} =(); + } elsif ($token->[0] eq "filename") { + $$attachments{$num}{'filename'} = $p->get_text("/filename"); + } elsif ($token->[0] eq "post") { + my $id = $token->[1]{id}; + $$attachments{$num}{$id} = $p->get_text("/post"); + } + } + } else { + %{$$attachments{'0'}} = (); + $$attachments{'0'}{'filename'} = $attachmenturls; + $$attachments{'0'}{'0'} = 'n'; + } + + return; } sub fail_redirect { my ($r,$feedurl) = @_; - $r->print (<Feedback not sent - - - - - - -Sorry, no recipients ... - - + if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; + my %lt = &Apache::lonlocal::texthash( + 'sorr' => 'Sorry, no recipients ...', + ); + my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif'); + $r->print(&Apache::loncommon::start_page('Feedback not sent',undef, + {'redirect' => [2,$feedurl], + 'only_body' => 1,})); + $r->print(< +

$lt{'sorr'}

ENDFAILREDIR + $r->print(&Apache::loncommon::end_page()); } sub redirect_back { - my ($r,$feedurl,$typestyle,$sendsomething,$status) = @_; - $r->print (< -Feedback sent - - - - - - + my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_; + my $sorttag = ''; + my $roletag = ''; + my $statustag = ''; + my $sectag = ''; + my $grptag = ''; + my $userpicktag = ''; + my $qrystr = ''; + my $prevtag = ''; + + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + &dewrapper(\$feedurl); + if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; + if ($previous > 0) { + $qrystr = 'previous='.$previous; + if ($feedurl =~ /\?register=1/) { + $feedurl .= '&'.$qrystr; + } else { + $feedurl .= '?'.$qrystr; + } + $prevtag = ''; + } + if (defined($sort)) { + my $sortqry = 'sortposts='.$sort; + if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) { + $feedurl .= '&'.$sortqry; + } else { + $feedurl .= '?'.$sortqry; + } + $sorttag = ''; + if (defined($numpicks)) { + my $userpickqry = 'totposters='.$numpicks; + $feedurl .= '&'.$userpickqry; + $userpicktag = ''; + } else { + if (ref($sectionpick) eq 'ARRAY') { + $feedurl .= '&sectionpick='; + $sectag .= ''; + } else { + $feedurl .= '&sectionpick='.$sectionpick; + $sectag = ''; + } + if (ref($grouppick) eq 'ARRAY') { + $feedurl .= '&grouppick='; + $sectag .= ''; + } else { + $feedurl .= '&grouppick='.$grouppick; + $grptag = ''; + } + if (ref($rolefilter) eq 'ARRAY') { + $feedurl .= '&rolefilter='; + $roletag .= ''; + } else { + $feedurl .= '&rolefilter='.$rolefilter; + $roletag = ''; + } + $feedurl .= '&statusfilter='.$statusfilter; + $statustag =''; + } + } + my $grouptag; + if ($group ne '') { + $grouptag = ''; + my $refarg; + if (exists($env{'form.ref'})) { + $refarg = '&ref='.$env{'form.ref'}; + $grouptag .= ''; + } + if ($feedurl =~ /\?/) { + $feedurl .= '&group='.$group.$refarg; + } else { + $feedurl .= '?group='.$group.$refarg; + } + } + &Apache::lonenc::check_encrypt(\$feedurl); + my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif'); + my %parms=('only_body' => 1); + if ($env{'form.modal'}) { + $parms{'add_entries'}={'onLoad' => 'document.forms.reldt.submit()'}; + } else { + $parms{'redirect'}=[0,$feedurl]; + } + my $start_page= + &Apache::loncommon::start_page('Feedback sent',undef,\%parms); + my $end_page = &Apache::loncommon::end_page(); + $r->print(< $typestyle -Sent $sendsomething message(s). -$status - - +Sent $sendsomething message(s), and $sendposts post(s). +$blog +$toolarge +$status +
+$prevtag +$sorttag +$statustag +$roletag +$sectag +$grptag +$userpicktag +$grouptag +
+$end_page ENDREDIR } sub no_redirect_back { my ($r,$feedurl) = @_; - $r->print (<Feedback not sent - -ENDNOREDIR + my $nofeed=&mt('Sorry, no feedback possible on this resource ...'); + + my %onload; - if ($feedurl!~/^\/adm\/feedback/) { - $r->print(''); + my %body_options = ('only_body' => 1, + 'bgcolor' => '#FFFFFF', + 'add_entries' => \%onload,); + + if ($feedurl !~ m{^/adm/feedback}) { + $body_options{'redirect'} = [2,$feedurl]; } - + my $start_page= + &Apache::loncommon::start_page('Feedback not sent',undef, + \%body_options); + + my $end_page = &Apache::loncommon::end_page(); + + &Apache::lonenc::check_encrypt(\$feedurl); + my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif'); $r->print (< - - - -Sorry, no feedback possible on this resource ... - - +$start_page + +$nofeed +
+$end_page ENDNOREDIRTWO } sub screen_header { - my ($feedurl) = @_; - my $options=''; - if (($feedurl=~/^\/res/) && ($feedurl!~/^\/res\/adm/)) { - $options= - '

Feedback to resource author'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) { - $options.= - '
Question about resource content'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) { - $options.= - '
'. - 'Question/Comment/Feedback about course content'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) { - $options.= - '
'. - 'Question/Comment/Feedback about course policy'; - } - if ($ENV{'request.course.id'}) { - $options.='
'. - 'Contribution to course discussion of resource'; - } - return $options; + my ($feedurl,$symb,$group) = @_; + my $crscontent = &mt('Question/Comment/Feedback about course content'); + my $crspolicy = &mt('Question/Comment/Feedback about course policy'); + my $contribdisc = &mt('Contribution to course discussion of resource'); + my $anoncontrib = &mt('Anonymous contribution to course discussion of resource'); + my $namevis = &mt('name only visible to course faculty'); + my $crstype; + if ($env{'request.course.id'}) { + $crstype = &Apache::loncommon::course_type(); + if ($crstype eq 'Community') { + $crscontent = &mt('Question/Comment/Feedback about community content'); + $crspolicy = &mt('Question/Comment/Feedback about community policy'); + $contribdisc = &mt('Contribution to community discussion of resource'); + $anoncontrib = &mt('Anonymous contribution to community discussion of resource'); + $namevis = &mt('name only visible to community facilitators'); + } + } + my $msgoptions=''; + my $discussoptions=''; + unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) { + if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) { + $msgoptions= + '
'; + } + my %optionhash=(); + foreach my $type ('question','comment','policy') { + $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'}; + } + if (&feedback_available(1)) { + $msgoptions.= + '
'; + } + if (&feedback_available(0,1)) { + $msgoptions.= + '
'; + } + if (&feedback_available(0,0,1)) { + $msgoptions.= + '
'; + } + } + if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) { + my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards'); + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $realsymb = &get_realsymb($symb); + if (!$blocked && &discussion_open(undef,$realsymb) && + (&Apache::lonnet::allowed('pch', + $env{'request.course.id'}. + ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) || + (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) { + $discussoptions='
'. + ''.&mt('Change Screenname').''; + my $blockblog = &Apache::loncommon::blocking_status('blogs'); + if (!$blockblog) { + $discussoptions.= &add_blog_checkbox($crstype); + } + } + } + if ($msgoptions) { + $msgoptions='' + .'
'.&mt('Send Feedback').'
'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').''. + ''.$msgoptions.''; + } + if ($discussoptions) { + $discussoptions='' + .'
'.&mt('Discussion Contributions').'
'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').''. + ''.$discussoptions.''; + } + return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table(); } sub resource_output { my ($feedurl) = @_; - my $usersaw=&Apache::lonnet::ssi($feedurl); + my $usersaw=&Apache::lonnet::ssi_body($feedurl); $usersaw=~s/\]*\>//gi; $usersaw=~s/\<\/body\>//gi; $usersaw=~s/\//gi; @@ -184,159 +3024,1972 @@ sub resource_output { } sub clear_out_html { - my $message=$ENV{'form.comment'}; - $message=~s/\/\>\;/g; + my ($message,$override)=@_; +# Always allow the -tag + my %html=(M=>1); +# Check if more is allowed + my $cid=$env{'request.course.id'}; + if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || + ($override)) { + # allows


      • + #

        + # + %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, + BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1, + M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1, + H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1, + TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1); + } +# Do the substitution of everything that is not explicitly allowed + $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ + {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; + $message =~ s/(\]*)\>/ + {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; return $message; } sub assemble_email { - my ($feedurl,$message,$prevattempts,$usersaw)=@_; + my ($message,$prevattempts,$usersaw,$useranswer)=@_; + my %lt = &Apache::lonlocal::texthash( + 'prev' => 'Previous attempts of student (if applicable)', + 'orig' => 'Original screen output (if applicable)', + 'corr' => 'Correct Answer(s) (if applicable)', + ); + if (&Apache::loncommon::course_type() eq 'Community') { + $lt{'prev'} = &mt('Previous attempts of member (if applicable)'); + } my $email=<<"ENDEMAIL"; -Refers to $feedurl - $message ENDEMAIL my $citations=<<"ENDCITE"; -

        Previous attempts of student (if applicable)

        +

        $lt{'prev'}

        $prevattempts -

        -

        Original screen output (if applicable)

        +
        +

        $lt{'orig'}

        $usersaw +

        $lt{'corr'}

        +$useranswer ENDCITE return ($email,$citations); } -sub decide_receiver { - my ($feedurl) = @_; - my $typestyle=''; - my %to=(); - if ($ENV{'form.author'}) { - $typestyle.='Submitting as Author Feedback
        '; - $feedurl=~/^\/res\/(\w+)\/(\w+)\//; - $to{$2.':'.$1}=1; - } - if ($ENV{'form.question'}) { - $typestyle.='Submitting as Question
        '; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}); - } - if ($ENV{'form.course'}) { - $typestyle.='Submitting as Comment
        '; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}); - } - if ($ENV{'form.policy'}) { - $typestyle.='Submitting as Policy Feedback
        '; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}); - } - return ($typestyle,%to); + +sub feedback_available { + my ($question,$course,$policy)=@_; + my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question, + $course,$policy); + return scalar(%to); } sub send_msg { - my ($feedurl,$email,$citations,%to)=@_; - my $status=''; - my $sendsomething=0; - map { - if ($_) { - unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), - 'Feedback '.$feedurl,$email,$citations) eq 'ok') { - $status.='
        Error sending message to '.$_.'
        '; - } else { - #$status.='
        Message sent to '.$_.'
        '; - $sendsomething++; - } + my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_; + my $status=''; + my $sendsomething=0; + my $restitle = &get_resource_title($symb,$feedurl); + if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; } + unless ($title=~/\w/) { $title=&mt('Feedback'); } + foreach my $key (keys(%to)) { + if ($key) { + my ($user,$domain) = split(/\:/,$key,2); + if (!defined($user)) { + $status.='
        '.&mt('Error sending message to [_1], no user specified.',$key); + } elsif (!defined($domain)) { + $status.='
        '.&mt('Error sending message to [_1], no domain specified.',$key); + } else { + unless (&Apache::lonmsg::user_normal_msg($user,$domain, + $title.' ['.$restitle.']',$email,$citations,$feedurl, + $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) { + $status.='
        '.&mt('Error sending message to').' '.$key.'
        '; + } else { + $sendsomething++; + } + } + } + } + +# Records of number of feedback messages are kept under the "symb" called "_feedback" +# There are two entries within the framework of a course: +# - the URLs for which feedback was provided +# - the total number of contributions + if ($sendsomething) { + my %record=&getfeedbackrecords(); + my ($temp)=keys(%record); + unless ($temp=~/^error\:/) { + my %newrecord=(); + $newrecord{'resource'}=$feedurl; + $newrecord{'subnumber'}=$record{'subnumber'}+1; + unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { + $status.='
        '.&mt('Not registered').'
        '; + } + } + } + return ($status,$sendsomething); +} + +# Routine to get the complete feedback records + +sub getfeedbackrecords { + my ($uname,$udom,$course)=@_; + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname); + return %record; +} + +# Routine to get feedback statistics + +sub getfeedbackstats { + my %record=&getfeedbackrecords(@_); + return ($record{'subnumber'},$record{'points'},$record{'totallikes'}); +} + +# Store feedback credit + +sub storefeedbackpoints { + my ($points,$uname,$udom,$course)=@_; + unless ($points) { $points=0; } + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=('grader_user' => $env{'user.name'}, + 'grader_domain' => $env{'user.domain'}, + 'points' => $points); + return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname); +} + +# Store feedback "likes" + +sub storefeedbacklikes { + my ($likes,$uname,$udom,$course)=@_; + unless ($likes) { $likes=0; } + if ($likes>0) { $likes=1; } + if ($likes<0) { $likes=-1; } + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=&getfeedbackrecords($uname,$udom,$course); + my $totallikes=$record{'totallikes'}; + $totallikes+=$likes; + my %newrecord=('likes_user' => $env{'user.name'}, + 'likes_domain' => $env{'user.domain'}, + 'likes' => $likes, + 'totallikes' => $totallikes); + return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname); +} + + +sub adddiscuss { + my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_; + my $status=''; + my $realsymb = &get_realsymb($symb); + my ($cnum,$cdom); + if ($env{'request.course.id'}) { + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + } + if (&discussion_open(undef,$realsymb) && + (&Apache::lonnet::allowed('pch',$env{'request.course.id'}. + ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) || + (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') && + ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) { + + my %contrib=('message' => $email, + 'sendername' => $env{'user.name'}, + 'senderdomain' => $env{'user.domain'}, + 'screenname' => $env{'environment.screenname'}, + 'plainname' => $env{'environment.firstname'}.' '. + $env{'environment.middlename'}.' '. + $env{'environment.lastname'}.' '. + $env{'enrironment.generation'}, + 'attachmenturl'=> $attachmenturl, + 'subject' => $subject); + if ($env{'form.replydisc'}) { + $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1]; + } + if ($anon) { + $contrib{'anonymous'}='true'; + } + if (($symb) && ($email)) { + my $now = time; + if ($env{'form.editdisc'}) { + $contrib{'ip'}=&Apache::lonnet::get_requestor_ip(); + $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'}; + $contrib{'timestamp'} = $now; + $contrib{'history'} = ''; + my $numoldver = 0; + my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'}); + &Apache::lonenc::check_decrypt(\$oldsymb); + $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|; +# get timestamp for last post and history + my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'}, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}); + if (defined($oldcontrib{$oldidx.':replyto'})) { + $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'}; + } + if (defined($oldcontrib{$oldidx.':history'})) { + if ($oldcontrib{$oldidx.':history'} =~ /:/) { + my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'}); + $numoldver = @oldversions; + } else { + $numoldver = 1; + } + $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':'; + } + my $numnewver = $numoldver + 1; + if (defined($oldcontrib{$oldidx.':subject'})) { + if ($oldcontrib{$oldidx.':subject'} =~ /^/) { + $contrib{'subject'} = ''.&HTML::Entities::encode($contrib{'subject'},'<>&"').''; + $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'}; + } else { + $contrib{'subject'} = ''.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').''.&HTML::Entities::encode($contrib{'subject'},'<>&"').''; + } + } + if (defined($oldcontrib{$oldidx.':message'})) { + if ($oldcontrib{$oldidx.':message'} =~ /^/) { + $contrib{'message'} = ''.&HTML::Entities::encode($contrib{'message'},'<>&"').''; + $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'}; + } else { + $contrib{'message'} = ''.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').''.&HTML::Entities::encode($contrib{'message'},'<>&"').''; + } + } + $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'}; + my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'}, + $oldsymb,$oldidx,\%contrib, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}); + $status='Editing class discussion'.($anon?' (anonymous)':''); + } else { + $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. + &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'}, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}); + } + my %storenewentry=($symb => $now); + $status.='
        '.&mt('Updating discussion time').': '. + &Apache::lonnet::put('discussiontimes',\%storenewentry, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}); + } + my %record=&getdiscussionrecords(); + my ($temp)=keys(%record); + unless ($temp=~/^error\:/) { + my %newrecord=(); + $newrecord{'resource'}=$symb; + $newrecord{'subnumber'}=$record{'subnumber'}+1; + $status.='
        '.&mt('Registering').': '. + &Apache::lonnet::cstore(\%newrecord,'_discussion'); + &updatekarma(); + } + } else { + $status.='Failed.'; + } + return $status.'
        '; +} + + +# Routine to get the complete discussion records + +sub getdiscussionrecords { + my ($uname,$udom,$course)=@_; + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname); + return %record; +} + +# Routine to get discussion statistics + +sub getdiscussionstats { + my %record=&getdiscussionrecords(@_); + my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'}; + return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes); +} + +# Calculate discussion karma + +sub calcdiscussionkarma { + my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_); + my $karma=0; + if ($votes>0) { + $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes); + if ($karma<0) { $karma=0; } + if ($karma>5) { $karma=5; } + } + return $karma; +} + +# Update karma + +sub updatekarma { + my ($uname,$udom,$course)=@_; + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my $karma=&calcdiscussionkarma($uname,$udom,$course); + &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname); + &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600); + return $karma; +} + +# Retrieve karma + +sub userkarma { + my ($uname,$udom,$course)=@_; + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my $hashkey=$uname.':'.$udom.':'.$course; + my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey); + if ($cached) { + return $karma; + } + my %userdisc=&getdiscussionrecords($uname,$udom,$course); + $karma=$userdisc{'karma'}; + &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600); + return $karma; +} + +# Store discussion credit + +sub storediscussionpoints { + my ($points,$uname,$udom,$course)=@_; + unless ($points) { $points=0; } + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=('grader_user' => $env{'user.name'}, + 'grader_domain' => $env{'user.domain'}, + 'points' => $points); + return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname); +} + +# Store discussion "likes" + +sub storediscussionlikes { + my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_; + unless ($uname) { $uname=$env{'user.name'}; } + unless ($udom) { $udom=$env{'user.domain'}; } + unless ($course) { $course=$env{'request.course.id'}; } + my %record=&getdiscussionrecords($uname,$udom,$course); + my $totallikes=$record{'totallikes'}; + my $totalunlikes=$record{'totalunlikes'}; + $totallikes += $chglikes; + $totalunlikes += $chgunlikes; + my %newrecord=('likes_user' => $env{'user.name'}, + 'likes_domain' => $env{'user.domain'}, + 'totallikes' => $totallikes, + 'totalunlikes' => $totalunlikes, + 'context' => $context); + my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname); + if ($status eq 'ok') { + &updatekarma($uname,$udom,$course); } - } keys %to; - return ($status,$sendsomething); + return $status; } +sub get_discussion_info { + my ($idx,%contrib) = @_; + my $changelast = 0; + my $count = 0; + my $hiddenflag = 0; + my $deletedflag = 0; + my ($hidden,$deleted,%info,$newlastdisc); + my $version = $contrib{'version'}; + if ($version) { + for (my $id=$version; $id>0; $id--) { + my $vkeys=$contrib{$id.':keys'}; + my @keys=split(/:/,$vkeys); + if (grep(/^hidden$/,@keys)) { + if (!$hiddenflag) { + $hidden = $contrib{$id.':hidden'}; + $hiddenflag = 1; + } + } elsif (grep(/^deleted$/,@keys)) { + if (!$deletedflag) { + $deleted = $contrib{$id.':deleted'}; + $deletedflag = 1; + } + } else { + if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) { + $count++; + $info{$count}{'id'} = $id; + $info{$count}{'timestamp'}=$contrib{$id.':timestamp'}; + } + } + } + if ($info{'1'}{'id'} == $idx) { + $changelast = 1; + if ($count > 1) { + $newlastdisc = $info{'2'}{'timestamp'}; + } else { + $newlastdisc = 0; + } + } + } + return ($changelast,$newlastdisc); +} + +# ----------------------------------------------------------- Preview function + +sub show_preview { + my ($r) = @_; + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my $start_page= + &Apache::loncommon::start_page('Preview',undef, + {'only_body' => 1,}); + + my $message=&clear_out_html($env{'form.comment'}); + &newline_to_br(\$message); + $message=&Apache::lonspeller::markeduptext($message); + $message=&Apache::lontexconvert::msgtexconverted($message); + my $subject=&clear_out_html($env{'form.subject'}); + $subject=~s/\n/\
        /g; + $subject=&Apache::lontexconvert::msgtexconverted($subject); + + my $end_page = &Apache::loncommon::end_page(); + + $r->print($start_page + .'

        '.&mt('Preview').'

        ' + .&Apache::lonhtmlcommon::start_pick_box() + .&Apache::lonhtmlcommon::row_title(&mt('Subject')) + .$subject + .&Apache::lonhtmlcommon::row_closure() + .&Apache::lonhtmlcommon::row_title(&mt('Message')) + .$message + .&Apache::lonhtmlcommon::row_closure(1) + .&Apache::lonhtmlcommon::end_pick_box() + .$end_page + ); +} + +sub contains_block_html { + my ($message)=@_; + return ($message =~ m{ + <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div) + \s* + (\w+\=['"]\w+['"])* + \s* + ( + \s*/>| + >.* + )}xs + ); +} + +sub tidy_html { + my ($message)=@_; +# my $tidy = HTML::Tidy::libXML->new(); +# my $xhtml = $tidy->clean($message, 'utf-8', 1); +# $xhtml =~ m/(.*)<\/body>/is; +# my $clean = $1; +# # remove any empty block-level tags +# $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i; +# $message=$clean; + return $message; +} + +sub newline_to_br { + my ($message)=@_; + my $newmessage; + my $parser=HTML::LCParser->new($message); + while (my $token=$parser->get_token()) { + if ($token->[0] eq 'T') { + my $text=$token->[1]; + $text=~s/\n/\
        /g; + $newmessage.=$text; + } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') { + $newmessage.=$token->[1]; + } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') { + $newmessage.=$token->[2]; + } elsif ($token->[0] eq 'S') { + $newmessage.=$token->[4]; + } + + } + $$message=$newmessage; +} + +sub generate_preview_button { + my ($formname,$fieldname)=@_; + unless ($formname) { $formname='mailform'; } + unless ($fieldname) { $fieldname='comment'; } + my $pre=&mt("Show Preview and Check Spelling"); + return(< +
        + + + + +ENDPREVIEW +} + +sub modify_attachments { + my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls, + $attachmaxtext,$toolarge)=@_; + + my %lt = &Apache::lonlocal::texthash( + 'subj' => 'Subject', + 'chth' => 'Check the checkboxes for any you wish to remove.', + 'thef' => 'The following attachments have been uploaded for inclusion with this posting.', + 'adda' => 'Add a new attachment to this post', + 'stch' => 'Save Changes', + 'clic' => 'Add/remove attachments', + ); + my $js = < + function setAction () { + document.modattachments.action = document.modattachments.origpage.value; + document.modattachments.submit(); + } + + +END + + # Breadcrumbs + my $brcrum = [{'href' => '', + 'text' => 'Discussion Post Attachments'}]; + my %parms=('only_body' => 1); + if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; } + + my $start_page = + &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms); + + my $orig_subject = &unescape($env{'form.subject'}); + my $subject=&clear_out_html($orig_subject); + $subject=~s/\n/\
        /g; + $subject=&Apache::lontexconvert::msgtexconverted($subject); + my $timestamp=$env{'form.timestamp'}; + my $numoldver=$env{'form.numoldver'}; + + my $msg = ''; + my %attachments = (); + my %currattach = (); + if ($idx) { + &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold); + } + &Apache::lonenc::check_encrypt(\$symb); + + my $end_page = + &Apache::loncommon::end_page(); + + $r->print(< + +

        $lt{'clic'}

        +END + $r->print(&Apache::lonhtmlcommon::start_pick_box()); + $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject'))); + $r->print(''.$subject.''); + $r->print(&Apache::lonhtmlcommon::row_closure()); + $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'})); + $r->print('' + .'' + .' '.$attachmaxtext); + if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){ + $r->print(&Apache::lonhtmlcommon::row_closure()); + $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments'))); + if ($idx) { + if ($attachmenturls) { + my @currold = keys(%currattach); + if (@currold > 0) { + $r->print($lt{'thfo'}.'
        '.$lt{'chth'}.'
        '."\n"); + foreach my $id (@currold) { + my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'}); + $attachurl =~ m#/([^/]+)$#; + $r->print('
        '."\n"); + } + $r->print("
        "); + } + } + } + if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) { + $r->print($lt{'chth'}.'
        '."\n"); + foreach my $attach (@{$currnewattach}) { + $attach =~ m#/([^/]+)$#; + $r->print('
        '."\n"); + } + } + } + $r->print(&Apache::lonhtmlcommon::row_closure(1)); + $r->print(&Apache::lonhtmlcommon::end_pick_box()); + $r->print(< + + + + + + + +END + foreach my $item (@{$currnewattach}) { + $r->print(''."\n"); + } + foreach my $item (@{$currdelold}) { + $r->print(''."\n"); + } + $r->print(< + +$end_page +END + return; +} + +sub process_attachments { + my ($currnewattach,$currdelold,$keepold) = @_; + + @{$currnewattach}= + &Apache::loncommon::get_env_multiple('form.currnewattach'); + @{$currdelold}= + &Apache::loncommon::get_env_multiple('form.deloldattach'); + if (exists($env{'form.delnewattach'})) { + my @currdelnew = + &Apache::loncommon::get_env_multiple('form.delnewattach'); + my @currnew = (); + foreach my $newone (@{$currnewattach}) { + my $delflag = 0; + foreach my $item (@currdelnew) { + if ($newone eq $item) { + $delflag = 1; + last; + } + } + unless ($delflag) { + push(@currnew, $newone); + } + } + @{$currnewattach} = @currnew; + } + @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold'); +} + +sub generate_attachments_button { + my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach, + $numoldver,$mode,$blockblog) = @_; + my $origpage = $ENV{'REQUEST_URI'}; + my $att=$attachnum.' '.&mt("attachments"); + my %lt = &Apache::lonlocal::texthash( + 'clic' => 'Add/remove attachments', + ); + my $response = (< +
        + + + + + + + + + +ENDATTACH + if (defined($deloldattach)) { + if (@{$deloldattach} > 0) { + foreach my $delatt (@{$deloldattach}) { + $response .= ''."\n"; + } + } + } + if (defined($currnewattach)) { + if (@{$currnewattach} > 0) { + foreach my $attach (@{$currnewattach}) { + $response .= ''."\n"; + } + } + } + $response .= ''; + return $response; +} + +sub extract_attachments { + my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_; + %{$attachments}=(); + &get_post_attachments($attachments,$attachmenturls); + foreach my $id (sort(keys(%{$attachments}))) { + if (exists($$attachments{$id}{$numoldver})) { + if (defined($currdelold)) { + if (@{$currdelold} > 0) { + unless (grep/^$id$/,@{$currdelold}) { + $$currattach{$id} = $$attachments{$id}{$numoldver}; + } + } else { + $$currattach{$id} = $$attachments{$id}{$numoldver}; + } + } else { + $$currattach{$id} = $$attachments{$id}{$numoldver}; + } + } + } + my @attached = (sort { $a <=> $b } keys(%{$currattach})); + if (@attached == 1) { + my $id = $attached[0]; + my $attachurl; + if ($attachmenturls =~ m/^/) { + $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'}); + } else { + $attachurl = $$attachments{$id}{'filename'}; + } + $attachurl=~m|/([^/]+)$|; + $$message.='
        '. + $1.'
        '; + &Apache::lonnet::allowuploaded('/adm/feedback', + $attachurl); + } elsif (@attached > 1) { + $$message.='
          '; + foreach my $attach (@attached) { + my $id = $attach; + my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'}); + my ($fname) + =($attachurl=~m|/([^/]+)$|); + $$message .= '
        1. '. + $fname.'
          2. '; + &Apache::lonnet::allowuploaded('/adm/feedback', + $attachurl); + } + $$message .= '
        '; + } +} + +sub construct_attachmenturl { + my ($currnewattach,$keepold,$symb,$idx)=@_; + my $oldattachmenturl; + my $newattachmenturl; + my $startnum = 0; + my $currver = 0; + if (($env{'form.editdisc'}) && ($idx)) { + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}); + $oldattachmenturl = $contrib{$idx.':attachmenturl'}; + if ($contrib{$idx.':history'}) { + if ($contrib{$idx.':history'} =~ /:/) { + my @oldversions = split(/:/,$contrib{$idx.':history'}); + $currver = 1 + scalar(@oldversions); + } else { + $currver = 2; + } + } else { + $currver = 1; + } + if ($oldattachmenturl) { + if ($oldattachmenturl =~ m/^/) { + my %attachments = (); + my $prevver = $currver-1; + &get_post_attachments(\%attachments,$oldattachmenturl); + my $numattach = scalar(keys(%attachments)); + $startnum += $numattach; + foreach my $num (sort {$a <=> $b} keys(%attachments)) { + $newattachmenturl .= ''.$attachments{$num}{'filename'}.''; + foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) { + unless ($item eq 'filename') { + $newattachmenturl .= ''.$attachments{$num}{$item}.''; + } + } + if (grep/^$num$/,@{$keepold}) { + $newattachmenturl .= ''.$attachments{$num}{$prevver}.''; + } + $newattachmenturl .= ''; + } + } else { + $newattachmenturl = ''.&HTML::Entities::encode($oldattachmenturl).'n'; + unless (grep/^0$/,@{$keepold}) { + $newattachmenturl .= 'n'; + } + $newattachmenturl .= ''; + $startnum ++; + } + } + } + for (my $i=0; $i<@{$currnewattach}; $i++) { + my $attachnum = $startnum + $i; + $newattachmenturl .= ''.&HTML::Entities::encode($$currnewattach[$i]).'n'; + } + return $newattachmenturl; +} + +sub add_blog_checkbox { + my ($crstype) = @_; + my $checkstatus; + if ($env{'form.blog'}) { + $checkstatus = 'checked="checked"'; + } + my $output = ' +
        +
        '."\n"; + return $output; +} + +sub has_discussion { + my $resourcesref = shift; + my $navmap = Apache::lonnavmaps::navmap->new(); + if (defined($navmap)) { + my @allres=$navmap->retrieveResources(); + foreach my $resource (@allres) { + if ($resource->hasDiscussion()) { + my $ressymb = $resource->wrap_symb(); + if (ref($resourcesref) eq 'ARRAY') { + push(@{$resourcesref}, $ressymb); + } + } + } + } else { + &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.'); + } + return; +} + +sub sort_filter_names { + my ($sort_types,$role_types,$status_types,$crstype) = @_; + if (ref($sort_types) eq 'HASH') { + %{$sort_types} = ( + ascdate => 'Date order - oldest first', + descdate => 'Date order - newest first', + thread => 'Threaded', + subject => 'By subject', + username => 'By domain and username', + lastfirst => 'By last name, first name' + ); + } + my @courseroles = qw(st in ta ep ad); + if ($crstype eq 'Community') { + push(@courseroles,'co'); + } else { + push(@courseroles,'cc'); + } + if (ref($role_types) eq 'HASH') { + foreach my $role (@courseroles) { + $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype); + } + $role_types->{'all'} = 'All roles'; + $role_types->{'cr'} = 'Custom role'; + } + if (ref($status_types) eq 'HASH') { + %{$status_types} = ( + all => 'Roles of any status', + Active => 'Only active roles', + Expired => 'Only past roles', + Future => 'Only future roles', + ); + } +} + sub handler { my $r = shift; if ($r->header_only) { - $r->content_type('text/html'); + &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; return OK; } - - my $feedurl=$ENV{'form.postdata'}; - $feedurl=~s/^http\:\/\///; - $feedurl=~s/^$ENV{'SERVER_NAME'}//; - $feedurl=~s/^$ENV{'HTTP_HOST'}//; - - my $symb=&Apache::lonnet::symbread($feedurl); - my $goahead=1; - if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { - unless ($symb) { $goahead=0; } + +# --------------------------- Get query string for limited number of parameters + + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['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']); + my $group = $env{'form.group'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + + my %attachmax = ( + text => &mt('(128 KB max size)'), + num => 131072, + ); + if ($env{'form.editdisc'}) { + if (!(&editing_allowed($env{'form.editdisc'},$group))) { + my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0]; + my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); + my $feedurl=&Apache::lonnet::clutter($url); + &redirect_back($r,$feedurl,&mt('Editing not permitted').'
        ', '0','0','','',$env{'form.previous'},undef,undef,undef, + undef,undef,undef,$group); + return OK; + } + } + if ($env{'form.discsymb'}) { + my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'}); + my $readkey = $symb.'_read'; + my $chgcount = 0; + my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'}); + foreach my $key (keys(%env)) { + if ($key =~ m/^form\.postunread_(\d+)/) { + if ($readinghash{$readkey} =~ /\.$1\./) { + $readinghash{$readkey} =~ s/\.$1\.//; + $chgcount ++; + } + } elsif ($key =~ m/^form\.postread_(\d+)/) { + unless ($readinghash{$readkey} =~ /\.$1\./) { + $readinghash{$readkey} .= '.'.$1.'.'; + $chgcount ++; + } + } + } + if ($chgcount > 0) { + &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss', + \%readinghash,$env{'user.domain'},$env{'user.name'}); + } + &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'
        ', + '0','0','','',$env{'form.previous'},'','','', + undef,undef,undef,$group); + return OK; + } + if ($env{'form.allversions'}) { + &Apache::loncommon::content_type($r,'text/html'); + &Apache::loncommon::no_cache($r); + $r->send_http_header; + + # Breadcrumbs + my $brcrum = [{'href' => '', + 'text' => 'Discussion Post Versions'}]; + + my %parms=(); + if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; } + + $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms)); + + my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'}); + ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb); + my $ressymb = &wrap_symb($symb); + my $seeid; + if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) { + $seeid = 1; + } + my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum); + if ($idx > 0) { + my %messages = (); + my %subjects = (); + my %attachmsgs = (); + my %allattachments = (); + my %imsfiles = (); + my ($screenname,$plainname,$showaboutme); + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme)); + } + $r->print(&Apache::loncommon::end_page()); + return OK; + } + if ($env{'form.posterlist'}) { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'}); + &print_showposters($r,$symb,$env{'form.previous'},$feedurl, + $env{'form.sortposts'}); + return OK; } + if ($env{'form.userpick'}) { + my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo'); + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'}); + my $numpicks = @posters; + my %discinfo; + $discinfo{$symb.'_userpick'} = join('&',@posters); + &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss', + \%discinfo,$env{'user.domain'},$env{'user.name'}); + &redirect_back($r,$feedurl,&mt('Changed sort/filter').'
        ','0','0','', + '',$env{'form.previous'},$env{'form.sortposts'},'','','', + '',$numpicks,$group); + return OK; + } + if ($env{'form.applysort'}) { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'}); + &redirect_back($r,$feedurl,&mt('Changed sort/filter').'
        ','0','0','', + '',$env{'form.previous'},$env{'form.sortposts'}, + $env{'form.rolefilter'},$env{'form.statusfilter'}, + $env{'form.sectionpick'},$env{'form.grouppick'}, + undef,$group); + return OK; + } elsif ($env{'form.cmd'} eq 'sortfilter') { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'}); + &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl); + return OK; + } elsif ($env{'form.navtime'}) { + my %discinfo = (); + my @resources = (); + if (defined($env{'form.navmaps'})) { + if ($env{'form.navmaps'} =~ /:/) { + @resources = split(/:/,$env{'form.navmaps'}); + } else { + @resources = ("$env{'form.navmaps'}"); + } + } else { + &has_discussion(\@resources); + } + my $numitems = @resources; + my $feedurl = '/adm/navmaps'; + if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; } + my %lt = &Apache::lonlocal::texthash( + 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.' + ); + foreach my $res (@resources) { + my $ressymb=$res; + &Apache::lonenc::check_decrypt(\$ressymb); + my $lastkey = $ressymb.'_lastread'; + $discinfo{$lastkey} = $env{'form.navtime'}; + } + my $textline = ''. + &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.', + $numitems). + ''; + if ($numitems > 0) { + &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss', + \%discinfo,$env{'user.domain'},$env{'user.name'}); + } else { + $textline = "$lt{'twnp'}"; + } + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif'); + my %onload; + + my $start_page= + &Apache::loncommon::start_page('New posts marked as read',undef, + {'redirect' => [2,$feedurl], + 'only_body' => 1, + 'add_entries' => \%onload}); + my $end_page = &Apache::loncommon::end_page(); + $r->print (< +$textline +
        + +
        +$end_page +ENDREDIR + return OK; + } elsif ($env{'form.modifydisp'}) { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'}); + my ($dispchgA,$dispchgB,$markchg,$toggchg) = + split(/_/,$env{'form.changes'}); + &print_display_options($r,$symb,$env{'form.previous'},$dispchgA, + $dispchgB,$markchg,$toggchg,$feedurl); + return OK; + } elsif ($env{'form.markondisp'} || $env{'form.markonread'} || + $env{'form.allposts'} || $env{'form.onlyunread'} || + $env{'form.onlyunmark'} || $env{'form.toggoff'} || + $env{'form.toggon'} || $env{'form.markread'}) { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'}); + my %discinfo; +# ------------------------ Modify setting for read/unread toggle for each post + if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; } + if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; } +# --------- Modify setting for identification of 'NEW' posts in this discussion + if ($env{'form.markondisp'}) { + $discinfo{$symb.'_lastread'} = time; + $discinfo{$symb.'_markondisp'} = 1; + } + if ($env{'form.markonread'}) { + if ( $env{'form.previous'} > 0 ) { + $discinfo{$symb.'_lastread'} = $env{'form.previous'}; + } + $discinfo{$symb.'_markondisp'} = 0; + } +# --------------------------------- Modify display setting for this discussion + if ($env{'form.allposts'}) { + $discinfo{$symb.'_showonlyunread'} = 0; + $discinfo{$symb.'_showonlyunmark'} = 0; + } + if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; } + if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; } +# ----------------------------------------------------- Mark new posts not NEW + if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; } + &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss', + \%discinfo,$env{'user.domain'},$env{'user.name'}); + my $previous=$env{'form.previous'}; + if ($env{'form.markondisp'}) { $previous=undef; } + &redirect_back($r,$feedurl,&mt('Changed display status').'
        ', + '0','0','','',$previous,'','','','','','',$group); + return OK; + } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) { +# ----------------------------------------------------------------- Hide/unhide + my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'}; + my ($symb,$idx)=split(/\:\:\:/,$entry); + ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb); + my $ressymb = &wrap_symb($symb); + + my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum); + unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) { + &redirect_back($r,$feedurl,&mt('Hiding not permitted').'
        ', + '0','0','','',$env{'form.previous'},'','','','', + undef,undef,$group,); + return OK; + } - if ($goahead) { + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + + my $currenthidden=$contrib{'hidden'}; + my $currentstudenthidden=$contrib{'studenthidden'}; + + if ($env{'form.hide'}) { + $currenthidden.='.'.$idx.'.'; + unless ($seehidden) { + $currentstudenthidden.='.'.$idx.'.'; + } + } else { + $currenthidden=~s/\.$idx\.//g; + } + my %newhash=('hidden' => $currenthidden); + if ( ($env{'form.hide'}) && (!$seehidden) ) { + $newhash{'studenthidden'} = $currentstudenthidden; + } + if ($env{'form.hide'}) { + my $changelast = 0; + my $newlast; + ($changelast,$newlast) = &get_discussion_info($idx,%contrib); + if ($changelast) { + &Apache::lonnet::put('discussiontimes',{$symb => $newlast}, + $cdom,$cnum); + } + } + my $result; + if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'}, + $cdom,$cnum) eq 'ok') { + my $prefix=$symb.':'.$idx.':'; + my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum, + '^'.$prefix); + my ($totallikes,$totalunlikes); + if (ref($likes{$prefix.'likers'}) eq 'HASH') { + $totallikes = scalar(keys(%{$likes{$prefix.'likers'}})); + } + if (ref($likes{$prefix.'unlikers'}) eq 'HASH') { + $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}})); + } + if ($totallikes || $totalunlikes) { + my ($chglikes,$chgunlikes,$context); + if ($env{'form.hide'}) { + $chglikes = -1 * $totallikes; + $chgunlikes = -1 * $totalunlikes; + $context = 'hide'; + } else { + $chglikes = $totallikes; + $chgunlikes = $totalunlikes; + $context = 'unhide'; + } + &storediscussionlikes($chglikes,$chgunlikes, + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}, + $env{'request.course.id'}, + $context); + + } + $result = &mt('Changed discussion status'); + } else { + $result = &mt('Discussion status unchanged'); + } + &redirect_back($r,$feedurl,$result.'
        ','0','0','','', + $env{'form.previous'},undef,undef,undef, + undef,undef,undef,$group); + return OK; + } elsif (($env{'form.like'}) || ($env{'form.unlike'})) { +# ----------------------------------------------------------------- Like/unlike + my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'}; + my ($symb,$idx)=split(/\:\:\:/,$entry); + ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb); + my $result; + if ($idx > 0) { + my $realsymb = &get_realsymb($symb); + my $status='OPEN'; + if ($Apache::lonhomework::parsing_a_problem || + $Apache::lonhomework::parsing_a_task) { + $status=$Apache::inputtags::status[-1]; + } + if (&discussion_vote_available($status,$realsymb)) { + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + my $ownpost; + if (($contrib{$idx.':sendername'} eq $env{'user.name'}) && + ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) { + $ownpost = 1; + } + if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) { + $result = &mt('Vote not registered.').' '; + } + if ($ownpost) { + $result .= &mt('No voting for your own posts.'); + } elsif ($contrib{$idx.':hidden'}) { + $result .= &mt('No voting for hidden posts.'); + } elsif ($contrib{$idx.':deleted'}) { + $result .= &mt('No voting for deleted posts.'); + } else { +# +# Likes and unlikes are in db-file "disclikes" of the course +# The prefix is the $symb to identify the resource discussion, +# and the $idx to identify the entry +# + my $prefix=$symb.':'.$idx.':'; + my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum, + '^'.$prefix); + +# Get current like or unlike status for the $idx for this user. + my $thisuser=$env{'user.name'}.':'.$env{'user.domain'}; + my ($userlikes,$userunlikes); + if (ref($likes{$prefix.'likers'}) eq 'HASH') { + if (exists($likes{$prefix.'likers'}{$thisuser})) { + $userlikes = 1; + } + } + if (ref($likes{$prefix.'unlikers'}) eq 'HASH') { + if (exists($likes{$prefix.'unlikers'}{$thisuser})) { + $userunlikes = 1; + } + } +# Get the current "likes" count + my $likescount=$likes{$prefix.'likes'}; +# Find out if they already voted +# Users cannot like a post twice, or unlike it twice. +# They can change their mind, though. + my $alreadyflag=0; + my $votetype; + if ($env{'form.like'}) { + if ($userlikes) { + $alreadyflag=1; + } elsif ($userunlikes) { + delete($likes{$prefix.'unlikers'}{$thisuser}); + $votetype = 'switch'; + $likescount++; + } else { + if (ref($likes{$prefix.'likers'}) eq 'HASH') { + $likes{$prefix.'likers'}{$thisuser} = 1; + } else { + $likes{$prefix.'likers'} = {$thisuser => 1}; + } + $likescount++; + } + } else { + if ($userunlikes) { + $alreadyflag=1; + } elsif ($userlikes) { + delete($likes{$prefix.'likers'}{$thisuser}); + $votetype = 'switch'; + $likescount--; + } else { + if (ref($likes{$prefix.'unlikers'}) eq 'HASH') { + $likes{$prefix.'unlikers'}{$thisuser} = 1; + } else { + $likes{$prefix.'unlikers'} = {$thisuser => 1}; + } + $likescount--; + } + } +# $alreadyflag would be 1 if they tried to double-like or double-unlike + if ($alreadyflag) { + if ($env{'form.like'}) { + $result= &mt("'Like' already registered"); + } else { + $result= &mt("'Unlike' already registered"); + } + } else { + my %newhash=($prefix.'likes' => $likescount, + $prefix.'likers' => $likes{$prefix.'likers'}, + $prefix.'unlikers' => $likes{$prefix.'unlikers'}); +# Store data in db-file "disclikes" + if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') { +# Also store with the person who posted the liked/unliked entry + my ($chglike,$chgunlike); + if ($env{'form.like'}) { + if ($votetype eq 'switch') { + $chglike = 0; + $chgunlike = -1; + } else { + $chglike = 1; + $chgunlike = 0; + } + &storediscussionlikes($chglike,$chgunlike, + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}, + $env{'request.course.id'},'like'); + $result=&mt("Registered 'Like'"); + } else { + if ($votetype eq 'switch') { + $chglike = -1; + $chgunlike = 0; + } else { + $chglike = 0; + $chgunlike = 1; + } + &storediscussionlikes($chglike,$chgunlike, + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}, + $env{'request.course.id'},'unlike'); + $result=&mt("Registered 'Unlike'"); + } + } else { +# Oops, something went wrong + $result=&mt("Failed to register vote"); + } + } + } + } else { + $result=&mt('Voting unavailable for this discussion'); + } + } else { + $result=&mt('Invalid post number'); + } + &redirect_back($r,$feedurl,$result.'
        ', + '0','0','','',$env{'form.previous'},undef,undef,undef, + undef,undef,undef,$group); + return OK; + } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) { + my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'}); + if ($env{'form.cmd'} eq 'threadedoff') { + &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'}); + &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'}); + &Apache::lonnet::del('environment',['threadeddiscussion']); + &Apache::lonnet::delenv('environment.threadeddiscussion'); + } else { + &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); + &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'}); + &Apache::lonnet::del('environment',['unthreadeddiscussion']); + &Apache::lonnet::delenv('environment.unthreadeddiscussion'); + } + &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'
        ', + '0','0','','',$env{'form.previous'},undef,undef,undef, + undef,undef,undef,$group); + return OK; + } elsif ($env{'form.deldisc'}) { +# --------------------------------------------------------------- Hide for good + my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'}); + ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb); + my $ressymb=&wrap_symb($symb); + + unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) { + &redirect_back($r,$feedurl,&mt('Deletion not permitted').'
        ', + '0','0','','',$env{'form.previous'},'','','','', + undef,undef,$group); + return OK; + } + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + my ($changelast,$newlast) = &get_discussion_info($idx,%contrib); + if ($changelast) { + &Apache::lonnet::put('discussiontimes',{$symb => $newlast}, + $cdom,$cnum); + } + my %newhash=('deleted' => $contrib{'deleted'}.".$idx."); + + my $result; + if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'}, + $cdom,$cnum) eq 'ok') { + $result = &mt('Changed discussion status'); + my $prefix=$symb.':'.$idx.':'; + my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum, + '^'.$prefix); + my ($totallikes,$totalunlikes); + if (ref($likes{$prefix.'likers'}) eq 'HASH') { + $totallikes = scalar(keys(%{$likes{$prefix.'likers'}})); + } + if (ref($likes{$prefix.'unlikers'}) eq 'HASH') { + $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}})); + } + if ($totallikes || $totalunlikes) { + my $chglikes = -1 * $totallikes; + my $chgunlikes = -1 * $totalunlikes; + &storediscussionlikes($chglikes,$chgunlikes, + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}, + $env{'request.course.id'}, + 'delete'); + } + } else { + $result = &mt('Discussion status unchanged'); + } + &redirect_back($r,$feedurl,$result.'
        ','0','0','','', + $env{'form.previous'},undef,undef,undef, + undef,undef,undef,$group); + return OK; + } elsif ($env{'form.preview'}) { +# -------------------------------------------------------- User wants a preview + &show_preview($r); + return OK; + } elsif ($env{'form.attach'}) { +# -------------------------------------------------------- Work on attachments + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']); + my (@currnewattach,@currdelold,@keepold,$toolarge); + &process_attachments(\@currnewattach,\@currdelold,\@keepold); + if (exists($env{'form.addnewattach.filename'})) { + if (length($env{'form.addnewattach'})<=$attachmax{'num'}) { + my $subdir = 'feedback/'.$env{'form.timestamp'}; + my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir); + push(@currnewattach, $newattachment); + } else { + $toolarge = '

        '.&mt('Attachment not included - exceeded permitted length').'

        '; + } + } + my $attachmenturls; + my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'}); + my $idx = $env{'form.idx'}; + if ($idx) { + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + $attachmenturls = $contrib{$idx.':attachmenturl'}; + } + &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx, + $attachmenturls,$attachmax{'text'},$toolarge); + return OK; + } elsif ($env{'form.export'}) { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'}); + my $mode='board'; + my $status='OPEN'; + my $previous=$env{'form.previous'}; + if ($feedurl =~ /$LONCAPA::assess_re/) { + $mode='problem'; + $status=$Apache::inputtags::status[-1]; + } + + my $discussion = &list_discussion($mode,$status,$symb); + my $start_page = + &Apache::loncommon::start_page('Resource Feedback and Discussion'); + my $end_page = + &Apache::loncommon::end_page(); + $r->print($start_page.$discussion.$end_page); + return OK; + + } elsif ($env{'form.undeleteall'}) { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'}); + my $ressymb=&wrap_symb($symb); + $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries')); + if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) { + my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, + $cdom,$cnum); + $contrib{'deleted'} =~ s/^\.//; + $contrib{'deleted'} =~ s/\.$//; + my $confirm_msg; + if ($contrib{'deleted'} ne '') { + if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'}, + $cdom,$cnum) eq 'ok') { + my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':'); + my @ids = split(/\.\./,$contrib{'deleted'}); + my (%chglikes,%chgunlikes); + foreach my $idx (@ids) { + my $uname = $contrib{$idx.':sendername'}; + my $udom = $contrib{$idx.':senderdomain'}; + my ($totallikes,$totalunlikes); + if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') { + $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}})); + } + if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') { + $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}})); + } + if ($totallikes || $totalunlikes) { + $chglikes{$uname.':'.$udom} += $totallikes; + $chgunlikes{$uname.':'.$udom} += $totalunlikes; + } + } + foreach my $user (keys(%chglikes)) { + my ($uname,$udom) = split(/:/,$user); + &storediscussionlikes($chglikes{$user},$chgunlikes{$user}, + $uname,$udom,$env{'request.course.id'}, + 'undelete'); + } + $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")); + } else { + $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1); + } + } else { + $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1); + } + $r->print( + '
        ' + .&Apache::loncommon::confirmwrapper($confirm_msg) + .&Apache::lonhtmlcommon::actionbox( + ["".&mt("Return and reload").""]) + ); + } + $r->print(&Apache::loncommon::end_page()); + return OK; + } else { +# ------------------------------------------------------------- Normal feedback + my $feedurl=$env{'form.postdata'}; + $feedurl=~s/^https?\:\/\///; + $feedurl=~s/^$ENV{'SERVER_NAME'}//; + $feedurl=~s/^$ENV{'HTTP_HOST'}//; + $feedurl=~s/\?.+$//; + + my $symb; + if ($env{'form.replydisc'}) { + $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0]; + } elsif ($env{'form.editdisc'}) { + $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0]; + } elsif ($env{'form.origpage'}) { + $symb=""; + } elsif ($env{'form.sendmessageonly'}) { + $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0]; + } else { + $symb=&Apache::lonnet::symbread($feedurl); + } + unless ($symb) { + $symb=$env{'form.symb'}; + } + if (defined($symb)) { + ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb); + } else { + # backward compatibility (bulletin boards used to be 'wrapped') + &Apache::lonenc::check_decrypt(\$feedurl); + &dewrapper(\$feedurl); + } + my $goahead=1; + if ($feedurl=~/$LONCAPA::assess_re/) { + unless ($symb) { $goahead=0; } + } + if (!$goahead) { + # Ambiguous Problem Resource + $r->internal_redirect('/adm/ambiguous'); + return OK; + } # Go ahead with feedback, no ambiguous reference - $r->content_type('text/html'); - $r->send_http_header; - - if ( - ( - ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) - ) - || - ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) - ) { + unless ( + ( + ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) + ) + || + ($env{'request.course.id'} && ($feedurl!~m:^/adm:)) + || + ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) + || + (($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/)) + ) { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; +# Unable to give feedback + &Apache::lonenc::check_encrypt(\$feedurl); + &no_redirect_back($r,$feedurl); + return OK; + } # --------------------------------------------------- Print login screen header - unless ($ENV{'form.sendit'}) { - my $options=&screen_header($feedurl); - if ($options) { - &mail_screen($r,$feedurl,$options); - } else { - &fail_redirect($r,$feedurl); + unless ($env{'form.sendit'}) { + &Apache::lonenc::check_encrypt(\$feedurl); + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) { + my ($blocked,$blocktext) = + &Apache::loncommon::blocking_status('boards'); + if ($blocked) { + $r->print(&blocked_reply_or_edit($blocktext)); + return OK; + } + } + my $options=&screen_header($feedurl,$symb,$group); + if ($options) { + &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'}); + } else { + &fail_redirect($r,$feedurl); + } + return OK; } - } else { # Get previous user input my $prevattempts=&Apache::loncommon::get_previous_attempt( - $symb,$ENV{'user.name'},$ENV{'user.domain'},$ENV{'user.home'}, - $ENV{'request.course.id'}); + $symb,$env{'user.name'},$env{'user.domain'}, + $env{'request.course.id'}); # Get output from resource + &Apache::lonenc::check_encrypt(\$feedurl); my $usersaw=&resource_output($feedurl); +# Get resource answer (need to allow student to view grades for this to work) + &Apache::lonnet::appenv({'allowed.vgr'=>'F'}); + my $usersymb = &Apache::lonenc::check_encrypt($symb); + my $useranswer= + &Apache::loncommon::get_student_answers( + $usersymb,$env{'user.name'},$env{'user.domain'}, + $env{'request.course.id'}); + &Apache::lonnet::delenv('allowed.vgr'); +# Get attachments, if any, and not too large + my $attachmenturl=''; + my $toolarge=''; + if (($env{'form.origpage'}) || ($env{'form.editdisc'}) || + ($env{'form.replydisc'})) { + my ($symb,$idx); + if ($env{'form.replydisc'}) { + ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'}); + } elsif ($env{'form.editdisc'}) { + ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'}); + } elsif ($env{'form.origpage'}) { + $symb = $env{'form.symb'}; + } + &Apache::lonenc::check_decrypt(\$symb); + my @currnewattach = (); + my @deloldattach = (); + my @keepold = (); + &process_attachments(\@currnewattach,\@deloldattach,\@keepold); + $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|; + $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx); + } elsif ($env{'form.attachment.filename'}) { + if (length($env{'form.attachment'})<=$attachmax{'num'}) { + my $now = time; + my $subdir = 'feedback/'.$now; + $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir); + } else { + $toolarge = '

        '.&mt('Attachment not included - exceeded permitted length').'

        '; + } + } # Filter HTML out of message (could be nasty) - my $message=&clear_out_html; + my $override; + if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) { + $override = 1; + } + my $message=&clear_out_html($env{'form.comment'},$override); # Assemble email - my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, - $usersaw); - + my ($email,$citations)=&assemble_email($message,$prevattempts, + $usersaw,$useranswer); + # Who gets this? - my ($typestyle,%to) = &decide_receiver($feedurl); + my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl); # Actually send mail - my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to); + my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}), + $feedurl,$email,$citations, + $attachmenturl,$usersymb,%to); -# Receipt screen and redirect back to where came from - &redirect_back($r,$feedurl,$typestyle,$numsent,$status); +# Discussion? Store that. + my $numpost=0; + if ( ($env{'form.discuss'} ne '' + && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/) + || $env{'form.anondiscuss'} ne '') { + my $subject = &clear_out_html($env{'form.subject'}); + my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} ); + $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl, + $subject,$group); + $numpost++; + } - } - } else { -# Unable to give feedback - &no_redirect_back($r,$feedurl); - } - } else { -# Ambiguous Problem Resource - $r->internal_redirect('/adm/ambiguous'); +# Add to blog? + + my $blog=''; + if ($env{'form.blog'}) { + my $subject = &clear_out_html($env{'form.subject'}); + $status.=&Apache::lonrss::addentry($env{'user.name'}, + $env{'user.domain'}, + 'CourseBlog_'.$env{'request.course.id'}, + $subject,$message,$feedurl,'public'); + if (&Apache::loncommon::course_type() eq 'Community') { + $blog='
        '.&mt('Added to my community blog').'
        '; + } else { + $blog='
        '.&mt('Added to my course blog').'
        '; + } + } + +# Receipt screen and redirect back to where came from + &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge); } return OK; +} + +sub blocked_reply_or_edit { + my ($blocktext) = @_; + return + &Apache::loncommon::start_page('Resource Feedback and Discussion'). + $blocktext.'

        '. + &mt('Back to previous page'). + &Apache::loncommon::end_page(); } +sub wrap_symb { + my ($ressymb)=@_; + if ($ressymb =~ /bulletin___\d+___/) { + unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) { + $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; + } + } + return $ressymb; +} + +sub dewrapper { + my ($feedurl)=@_; + if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) { + $$feedurl=~s|^/adm/wrapper||; + } +} + +sub get_feedurl { + my ($symb)=@_; + my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); + my $feedurl = &Apache::lonnet::clutter($url); + &dewrapper(\$feedurl); + return $feedurl; +} + +sub get_feedurl_and_clean_symb { + my ($symb)=@_; + &Apache::lonenc::check_decrypt(\$symb); +# backward compatibility (bulletin boards used to be 'wrapped') + unless ($symb =~ m|bulletin___\d+___adm/wrapper|) { + $symb=~s|(bulletin___\d+___)|$1adm/wrapper|; + } + my $feedurl = &get_feedurl($symb); + return ($symb,$feedurl); +} + +sub editing_allowed { + my ($postid,$group) = @_; + $postid = &unescape($postid); + my $can_edit = 0; + if ($group ne '') { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) { + if (&check_group_priv($group,'egp') eq 'ok') { + $can_edit = 1; + } + return $can_edit; + } + } + my $cid = $env{'request.course.id'}; + my $role = (split(/\./,$env{'request.role'}))[0]; + my $section = $env{'request.course.sec'}; + my $allow_editing_config = + $env{'course.'.$cid.'.allow_discussion_post_editing'}; + if ($allow_editing_config =~ m/^\s*yes\s*$/i) { + $can_edit = 1; + } else { + foreach my $editor (split(/,/,$allow_editing_config)) { + my ($editor_role,$editor_sec) = split(/:/,$editor); + if ($editor_role eq $role + && defined($editor_sec) + && defined($section) + && $editor_sec eq $section) { + $can_edit = 1; + last; + } + if ($editor_role eq $role + && !defined($editor_sec)) { + $can_edit = 1; + } + } + } + return $can_edit; +} + +sub check_group_priv { + my ($group,$grp_priv) = @_; + foreach my $priv ('mdg','vcg') { + my $checkcourse = $env{'request.course.id'}. + ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''); + if (&Apache::lonnet::allowed($priv,$checkcourse)) { + return 'ok'; + } + } + if ($grp_priv && $group ne '') { + if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) { + return 'ok'; + } + } + return ''; +} + +sub group_args { + my ($group) = @_; + if ($group eq '') { return ''; } + my $extra_args = '&group='.$group; + if (exists($env{'form.ref'})) { + $extra_args .= '&ref='.$env{'form.ref'}; + } + return $extra_args; +} + +sub get_resource_title { + my ($symb,$feedurl) = @_; + my ($restitle,$plainurl); + if (defined($symb)) { + my $plain_symb = &Apache::lonenc::check_decrypt($symb); + $restitle = &Apache::lonnet::gettitle($plain_symb); + } + if (defined($feedurl)) { + $plainurl = &Apache::lonenc::check_decrypt($feedurl); + } + if (!defined($restitle)) { + if (defined($feedurl)) { + $restitle = &Apache::lonnet::gettitle($plainurl); + } + } + if ($plainurl ne $feedurl) { + my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-); + if ($plain_filename eq $restitle) { + $restitle = &mt('Untitled resource'); + } + } + if ($restitle eq '') { + $restitle = &mt('Untitled resource'); + } + return $restitle; +} + 1; __END__ +=pod + +=head1 NAME + +Apache::lonfeedback.pm + +=head1 SYNOPSIS + +Handles feedback from students to instructors and system administrators. + +Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework. + +Used by lonmsg.pm. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 OVERVIEW + +None + +=head1 SUBROUTINES + +=over + +=item discussion_open() + +=item discussion_visible() + +=item discussion_vote_available() + +=item get_realsymb() + +=item list_discussion() + +=item can_see_hidden() + +=item discussion_link() + +=item send_feedback_link() + +=item send_message_link() + +=item action_links_bar() + +=item postingform_display() + +=item build_posting_display + +=item filter_regexp() + +=item get_post_contents() + +=item replicate_attachments() + +=item mail_screen() + +=item print_display_options() + +=item print_sortfilter_options() + +=item print_showposters() + +=item get_post_versions() + +=item get_post_attachments() + +=item fail_redirect() + +=item redirect_back() + +=item no_redirect_back() + +=item screen_header() + +=item resource_output() + +=item clear_out_html() + +=item assemble_email() + +=item feedback_available() + +=item send_msg() + +=item adddiscuss() + +=item get_discussion_info() + +=item show_preview() + +=item newline_to_br() + +=item tidy_html() + +=item generate_preview_button() + +=item modify_attachments() + +=item process_attachments() + +=item generate_attachments_button() + +=item extract_attachments() + +=item construct_attachmenturl() + +=item add_blog_checkbox() + +=item has_discussion() + +=item sort_filter_names() + +=item handler() + +=item blocked_reply_or_edit() + +=item wrap_symb() + +=item dewrapper() + +=item get_feedurl() + +=item get_feedurl_and_clean_symb() + +=item editing_allowed() + +=item check_group_priv() + +=item group_args() + +=item get_resource_title() + +=back +=cut