Annotation of loncom/interface/lonfeedback.pm, revision 1.99.2.10

1.1       www         1: # The LearningOnline Network
                      2: # Feedback
                      3: #
1.99.2.10! albertel    4: # $Id: lonfeedback.pm,v 1.99.2.9 2004/09/16 19:42:09 matthew Exp $
1.19      albertel    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: #
1.77      www        28: ###
1.7       albertel   29: 
1.1       www        30: package Apache::lonfeedback;
                     31: 
                     32: use strict;
                     33: use Apache::Constants qw(:common);
1.3       www        34: use Apache::lonmsg();
1.9       albertel   35: use Apache::loncommon();
1.33      www        36: use Apache::lontexconvert();
1.86      www        37: use Apache::lonlocal; # must not have ()
                     38: use Apache::lonhtmlcommon();
1.99.2.10! albertel   39: use Apache::lonnavmaps();
1.54      www        40: 
1.92      albertel   41: sub discussion_open {
1.90      albertel   42:     my ($status)=@_;
1.92      albertel   43:     if (defined($status) &&
                     44: 	!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
1.77      www        45: 	  || $status eq 'OPEN')) {
1.92      albertel   46: 	return 0;
1.75      albertel   47:     }
1.89      albertel   48:     my $close=&Apache::lonnet::EXT('resource.0.discussend');
                     49:     if (defined($close) && $close ne '' && $close < time) {
1.92      albertel   50: 	return 0;
1.89      albertel   51:     }
1.92      albertel   52:     return 1;
                     53: }
                     54: 
                     55: sub discussion_visible {
                     56:     my ($status)=@_;
                     57:     if (not &discussion_open($status)) {
                     58: 	my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
                     59: 	if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden))  {
                     60: 	    return 0;
                     61: 	}
                     62:     }
                     63:     return 1;
1.90      albertel   64: }
1.84      raeburn    65: 
1.90      albertel   66: sub list_discussion {
                     67:     my ($mode,$status,$symb)=@_;
                     68: 
1.95      sakharuk   69:     my $outputtarget=$ENV{'form.grade_target'};
1.92      albertel   70:     if (not &discussion_visible($status)) { return ''; }
1.84      raeburn    71:     my @bgcols = ("#cccccc","#eeeeee");
1.57      www        72:     my $discussiononly=0;
                     73:     if ($mode eq 'board') { $discussiononly=1; }
1.55      www        74:     unless ($ENV{'request.course.id'}) { return ''; }
                     75:     my $crs='/'.$ENV{'request.course.id'};
                     76:     if ($ENV{'request.course.sec'}) {
                     77: 	$crs.='_'.$ENV{'request.course.sec'};
                     78:     }                 
                     79:     $crs=~s/\_/\//g;
1.54      www        80:     unless ($symb) {
                     81: 	$symb=&Apache::lonnet::symbread();
                     82:     }
                     83:     unless ($symb) { return ''; }
1.78      raeburn    84: 
1.80      raeburn    85: # backward compatibility (bulletin boards used to be 'wrapped')
                     86:     my $ressymb=$symb;
                     87:     if ($mode eq 'board') {
                     88:         unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                     89:             $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
                     90:         }
                     91:     }
                     92: 
                     93: # Get discussion display settings for this discussion
                     94:     my $lastkey = $ressymb.'_lastread';
                     95:     my $showkey = $ressymb.'_showonlyunread';
1.84      raeburn    96:     my $ondispkey = $ressymb.'_markondisp';
1.99.2.8  albertel   97:     my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$ondispkey],$ENV{'user.domain'},$ENV{'user.name'});
1.84      raeburn    98:     my %discinfo = ();
1.80      raeburn    99:     my $showonlyunread = 0;
1.84      raeburn   100:     my $markondisp = 0;
1.79      raeburn   101:     my $prevread = 0;
1.81      raeburn   102:     my $previous = 0;
1.80      raeburn   103:     my $newpostsflag = 0;
                    104: 
1.81      raeburn   105: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
                    106:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
                    107:     $previous = $ENV{'form.previous'};
1.80      raeburn   108:     if ($previous > 0) {
                    109:         $prevread = $previous;
                    110:     } elsif (defined($dischash{$lastkey})) {
1.84      raeburn   111:         unless ($dischash{$lastkey} eq '') {
                    112:             $prevread = $dischash{$lastkey};
                    113:         }
1.80      raeburn   114:     }
1.79      raeburn   115: 
1.84      raeburn   116: # Get discussion display default settings for user
1.99.2.7  albertel  117:     if ($ENV{'environment.discdisplay'} eq 'unread') {
1.83      raeburn   118:         $showonlyunread = 1;
                    119:     }
1.99.2.7  albertel  120:     if ($ENV{'environment.discmarkread'} eq 'ondisp') {
1.84      raeburn   121:         $markondisp = 1;
                    122:     }
                    123: 
                    124: # Override user's default if user specified display setting for this discussion
                    125:     if (defined($dischash{$ondispkey})) {
1.99.2.6  albertel  126: 	unless ($dischash{$showkey} eq '') {
                    127: 	    $markondisp = $dischash{$ondispkey};
                    128: 	}
1.84      raeburn   129:     }
                    130:     if ($markondisp) {
                    131:         $discinfo{$lastkey} = time;
                    132:     }
1.83      raeburn   133: 
1.80      raeburn   134:     if (defined($dischash{$showkey})) {
1.99.2.6  albertel  135: 	unless ($dischash{$showkey} eq '') {
                    136: 	    $showonlyunread = $dischash{$showkey};
                    137: 	}
1.80      raeburn   138:     }
                    139: 
1.54      www       140:     my $seeid=&Apache::lonnet::allowed('rin',$crs);
1.77      www       141:     my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
                    142: 	&& ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
1.68      www       143:     my @discussionitems=();
1.73      albertel  144:     my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
1.54      www       145: 			  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    146: 			  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.67      www       147:     my $visible=0;
1.68      www       148:     my @depth=();
                    149:     my @original=();
                    150:     my @index=();
                    151:     my @replies=();
                    152:     my %alldiscussion=();
1.80      raeburn   153:     my %notshown = ();
1.84      raeburn   154:     my %newitem = ();
1.68      www       155:     my $maxdepth=0;
                    156: 
1.69      www       157:     my $target='';
                    158:     unless ($ENV{'browser.interface'} eq 'textual' ||
                    159: 	    $ENV{'environment.remote'} eq 'off' ) {
                    160: 	$target='target="LONcom"';
                    161:     }
1.79      raeburn   162:     
                    163:     my $now = time;
1.99.2.8  albertel  164:     if (%discinfo) {
                    165: 	&Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
                    166:     }
1.79      raeburn   167: 
1.54      www       168:     if ($contrib{'version'}) {
1.84      raeburn   169:         my $oldest = $contrib{'1:timestamp'};
                    170:         if ($prevread eq '0') {
                    171:             $prevread = $oldest-1;
                    172:         }
1.64      www       173: 	for (my $id=1;$id<=$contrib{'version'};$id++) {
                    174: 	    my $idx=$id;
1.80      raeburn   175:             my $posttime = $contrib{$idx.':timestamp'};
1.84      raeburn   176:             if ($prevread <= $posttime) {
1.80      raeburn   177:                 $newpostsflag = 1;
                    178:             }
1.54      www       179: 	    my $hidden=($contrib{'hidden'}=~/\.$idx\./);
                    180: 	    my $deleted=($contrib{'deleted'}=~/\.$idx\./);
1.68      www       181: 	    my $origindex='0.';
1.69      www       182: 	    if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
1.68      www       183: # this is a follow-up message
                    184: 		$original[$idx]=$original[$contrib{$idx.':replyto'}];
                    185: 		$depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
                    186: 		$origindex=$index[$contrib{$idx.':replyto'}];
                    187: 		if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
                    188: 	    } else {
                    189: # this is an original message
                    190: 		$original[$idx]=0;
                    191: 		$depth[$idx]=0;
                    192: 	    }
                    193: 	    if ($replies[$depth[$idx]]) {
                    194: 		$replies[$depth[$idx]]++;
                    195: 	    } else {
                    196: 		$replies[$depth[$idx]]=1;
                    197: 	    }
1.54      www       198: 	    unless ((($hidden) && (!$seeid)) || ($deleted)) {
1.67      www       199: 		$visible++;
1.54      www       200: 		my $message=$contrib{$idx.':message'};
                    201: 		$message=~s/\n/\<br \/\>/g;
                    202: 		$message=&Apache::lontexconvert::msgtexconverted($message);
1.78      raeburn   203:                 my $subject=$contrib{$idx.':subject'};
                    204:                 if (defined($subject)) {
                    205:                     $subject=~s/\n/\<br \/\>/g;
                    206:                     $subject=&Apache::lontexconvert::msgtexconverted($subject);
                    207:                 }
1.54      www       208: 		if ($contrib{$idx.':attachmenturl'}) {
1.82      albertel  209: 		    my ($fname)
                    210:                         =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|);
                    211: 		    &Apache::lonnet::allowuploaded('/adm/feedback',
                    212: 					   $contrib{$idx.':attachmenturl'});
                    213: 		    $message.='<p>'.&mt('Attachment').
                    214: 			': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'.
                    215: 			$fname.'</tt></a></p>';
1.54      www       216: 		}
                    217: 		if ($message) {
                    218: 		    if ($hidden) {
                    219: 			$message='<font color="#888888">'.$message.'</font>';
                    220: 		    }
1.99.2.7  albertel  221: #		    my $screenname=&Apache::loncommon::screenname(
                    222: #					    $contrib{$idx.':sendername'},
                    223: #					    $contrib{$idx.':senderdomain'});
                    224: #		    my $plainname=&Apache::loncommon::nickname(
                    225: #					    $contrib{$idx.':sendername'},
                    226: #					    $contrib{$idx.':senderdomain'});
1.99.2.9  matthew   227: 		    my ($screenname,$plainname)=($contrib{$idx.':screenname'},
                    228: 						 $contrib{$idx.':plainname'});
1.62      www       229: 		    my $sender=&mt('Anonymous');
1.54      www       230: 		    if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
                    231: 			$sender=&Apache::loncommon::aboutmewrapper(
                    232: 					 $plainname,
                    233: 					 $contrib{$idx.':sendername'},
                    234: 					 $contrib{$idx.':senderdomain'}).' ('.
                    235: 					 $contrib{$idx.':sendername'}.' at '.
                    236: 					 $contrib{$idx.':senderdomain'}.')';
                    237: 			if ($contrib{$idx.':anonymous'}) {
1.62      www       238: 			    $sender.=' ['.&mt('anonymous').'] '.
1.54      www       239: 				$screenname;
                    240: 			}
                    241: 			if ($seeid) {
                    242: 			    if ($hidden) {
                    243: 				$sender.=' <a href="/adm/feedback?unhide='.
1.80      raeburn   244: 				    $ressymb.':::'.$idx;
                    245:                                 if ($newpostsflag) {
                    246:                                     $sender .= '&previous='.$prevread;
                    247:                                 }
                    248:                                 $sender .= '">'.&mt('Make Visible').'</a>';
1.54      www       249: 			    } else {
                    250: 				$sender.=' <a href="/adm/feedback?hide='.
1.80      raeburn   251: 				    $ressymb.':::'.$idx;
                    252:                                 if ($newpostsflag) {
                    253:                                     $sender .= '&previous='.$prevread;
                    254:                                 }
                    255:                                 $sender .= '">'.&mt('Hide').'</a>';
1.54      www       256: 			    }                     
                    257: 			    $sender.=' <a href="/adm/feedback?deldisc='.
1.80      raeburn   258: 				$ressymb.':::'.$idx;
                    259:                                 if ($newpostsflag) {
                    260:                                     $sender .= '&previous='.$prevread;
                    261:                                 }
                    262:                                 $sender .= '">'.&mt('Delete').'</a>';
1.64      www       263: 			}
1.54      www       264: 		    } else {
                    265: 			if ($screenname) {
                    266: 			    $sender='<i>'.$screenname.'</i>';
                    267: 			}
1.77      www       268: 		    }
1.92      albertel  269: 		    if (&discussion_open($status) &&
1.90      albertel  270: 			&Apache::lonnet::allowed('pch',
1.77      www       271: 						 $ENV{'request.course.id'}.
                    272: 						 ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
                    273: 			$sender.=' <a href="/adm/feedback?replydisc='.
1.80      raeburn   274: 			    $ressymb.':::'.$idx;
                    275:                         if ($newpostsflag) {
                    276:                             $sender .= '&previous='.$prevread;
                    277:                         }
                    278:                         $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1.54      www       279: 		    }
                    280: 		    my $vgrlink;
                    281: 		    if ($viewgrades) {
                    282: 			$vgrlink=&Apache::loncommon::submlink('Submissions',
                    283:             $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
                    284: 		    }
1.68      www       285: #figure out at what position this needs to print
                    286: 		    my $thisindex=$idx;
1.69      www       287: 		    if ($ENV{'environment.threadeddiscussion'}) {
1.68      www       288: 			$thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);	
                    289: 		    }
                    290: 		    $alldiscussion{$thisindex}=$idx;
                    291: 		    $index[$idx]=$thisindex;
1.79      raeburn   292:                     my $spansize = 2;
1.80      raeburn   293:                     if ($showonlyunread && $prevread > $posttime) {
                    294:                         $notshown{$idx} = 1;
1.78      raeburn   295:                     } else {
1.80      raeburn   296:                         if ($prevread > 0 && $prevread <= $posttime) {
1.84      raeburn   297:                             $newitem{$idx} = 1;
                    298:                             $discussionitems[$idx] .= '
                    299:                              <p><table border="0" width="100%">
                    300:                               <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
                    301:                         } else {
                    302:                             $newitem{$idx} = 0;
                    303:                             $discussionitems[$idx] .= '
                    304:                              <p><table border="0" width="100%">
                    305:                               <tr><td align="left">&nbsp;</td>';
1.80      raeburn   306:                         }
                    307:                         $discussionitems[$idx] .= '<td align ="left">&nbsp;&nbsp;'.
                    308:                             '<b>'.$subject.'</b>&nbsp;&nbsp;'.
                    309:                             $sender.'</b> '.$vgrlink.' ('.
                    310:                             localtime($posttime).')</td></tr>'.
                    311:                             '</table><blockquote>'.$message.'</blockquote></p>';
1.78      raeburn   312:                     }
                    313:                 }
                    314:             }
1.54      www       315: 	}
1.64      www       316:     }
1.80      raeburn   317: 
1.67      www       318:     my $discussion='';
1.84      raeburn   319: 
                    320:     my $function = &Apache::loncommon::get_users_function();
                    321:     my $color = &Apache::loncommon::designparm($function.'.tabbg',
                    322:                                                     $ENV{'user.domain'});
                    323:     my %lt = &Apache::lonlocal::texthash(
1.97      raeburn   324:         'cuse' => 'Current discussion settings',
1.84      raeburn   325:         'allposts' => 'All posts',
                    326:         'unread' => 'New posts only',
                    327:         'ondisp' => 'Once displayed',
                    328:         'onmark' => 'Once marked read',
                    329:         'disa' => 'Posts to be displayed',
                    330:         'npce' => 'Posts cease to be marked "NEW"',
1.97      raeburn   331:         'chgt' => 'Change',
                    332:         'disp' => 'Display',
                    333:         'nolo' => 'Not new',
1.84      raeburn   334:     );
                    335: 
                    336:     my $currdisp = $lt{'allposts'};
                    337:     my $currmark = $lt{'onmark'};
                    338:     my $dispchange = $lt{'unread'};
                    339:     my $markchange = $lt{'ondisp'};
1.97      raeburn   340:     my $chglink = '/adm/feedback?modifydisp='.$ressymb;
                    341:     my $displink = 'onlyunread';
                    342:     my $marklink = 'markondisp';
1.84      raeburn   343: 
                    344:     if ($markondisp) {
                    345:         $currmark = $lt{'ondisp'};
                    346:         $markchange = $lt{'onmark'};
1.97      raeburn   347:         $marklink = 'markonread';
1.84      raeburn   348:     }
                    349: 
                    350:     if ($showonlyunread) {
                    351:         $currdisp = $lt{'unread'};
                    352:         $dispchange = $lt{'allposts'};
1.97      raeburn   353:         $displink = 'allposts';
1.84      raeburn   354:     }
1.97      raeburn   355:    
                    356:     $chglink .= '&changes='.$displink.'_'.$marklink;
1.84      raeburn   357: 
                    358:     if ($newpostsflag) {
1.97      raeburn   359:         $chglink .= '&previous='.$prevread;
1.84      raeburn   360:     }
                    361: 
1.67      www       362:     if ($visible) {
1.80      raeburn   363: # Print the discusssion
1.95      sakharuk  364: 	if ($outputtarget ne 'tex') {
1.97      raeburn   365:             my $colspan=$maxdepth+1;
1.95      sakharuk  366: 	    $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
1.97      raeburn   367: 	    $discussion .='<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
1.95      sakharuk  368: 		'<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
                    369: 	    if ($visible>2) {
                    370: 		$discussion.='<td align="left">'.
                    371: 		    '<a href="/adm/feedback?threadedon='.$ressymb;
                    372: 		if ($newpostsflag) {
                    373: 		    $discussion .= '&previous='.$prevread;
                    374: 		}
                    375: 		$discussion .='">'.&mt('Threaded View').'</a>&nbsp;&nbsp;'.
                    376: 		    '<a href="/adm/feedback?threadedoff='.$ressymb;
                    377: 		if ($newpostsflag) {
                    378: 		    $discussion .= '&previous='.$prevread;
                    379: 		}
                    380: 		$discussion .='">'.&mt('Chronological View').'</a>&nbsp;&nbsp;</td>';
1.99      raeburn   381: 	    }
1.95      sakharuk  382: 	    if ($newpostsflag) {
                    383: 		if (!$markondisp) {
                    384: 		    $discussion .='<td align="right"><a href="/adm/feedback?markread='.$ressymb.'">'.&mt('Mark new posts as read').'</a>&nbsp;&nbsp;';
                    385: 		} else {
                    386: 		    $discussion .= '<td>&nbsp;</td>';
                    387: 		}
                    388: 	    } else {
                    389: 		$discussion .= '<td>&nbsp;</td>';
                    390: 	    }
                    391: 	    $discussion .= '</tr></table></td></tr>';
                    392: 	} else {
                    393: 	    $discussion.='\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
                    394:                          '\textbf{DISCUSSIONS}\makebox[2 cm][b]{\hrulefill}'.
                    395:                          '\vskip 0 mm\noindent\textbf{'.$lt{'cuse'}.'}:\vskip 0 mm'.
                    396:                          '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
                    397:                          '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}';
                    398: 	}
1.80      raeburn   399:         my $numhidden = keys %notshown;
                    400:         if ($numhidden > 0) {
                    401:             my $colspan = $maxdepth+1;
                    402:             $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
                    403:                          '<a href="/adm/feedback?allposts='.$ressymb;
                    404:             if ($newpostsflag) {
                    405:                 $discussion .= '&previous='.$prevread;
                    406:             }
                    407:             $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
                    408:                          $numhidden.' '.&mt('previously viewed posts').
                    409:                          '<br/></td></tr>';
                    410:         }
1.68      www       411: 	foreach (sort { $a <=> $b } keys %alldiscussion) {
1.80      raeburn   412:             unless ($notshown{$alldiscussion{$_}} eq '1') {
1.95      sakharuk  413:                 if ($outputtarget ne 'tex') {
                    414: 		    $discussion.="\n<tr>";
                    415: 		} else {
                    416: 		    $discussion.='\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}';
                    417: 		}
1.80      raeburn   418: 	        my $thisdepth=$depth[$alldiscussion{$_}];
1.95      sakharuk  419:                 if ($outputtarget ne 'tex') {
                    420: 		    for (1..$thisdepth) {
                    421: 			$discussion.='<td>&nbsp;&nbsp;&nbsp;</td>';
                    422: 		    }
                    423: 		}
1.80      raeburn   424: 	        my $colspan=$maxdepth-$thisdepth+1;
1.95      sakharuk  425:                 if ($outputtarget ne 'tex') {
                    426: 		    $discussion.='<td  bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].'" colspan="'.$colspan.'">'.
1.80      raeburn   427:                              $discussionitems[$alldiscussion{$_}].
                    428: 	                     '</td></tr>';
1.95      sakharuk  429: 		} else {
                    430: 		    #cleanup block
                    431: 		    $discussionitems[$alldiscussion{$_}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
                    432: 		    $discussionitems[$alldiscussion{$_}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
                    433:                     my $threadinsert='';
                    434:                     if ($thisdepth > 0) {
                    435: 			$threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
                    436: 		    }
                    437: 		    $discussionitems[$alldiscussion{$_}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
                    438: 		    $discussionitems[$alldiscussion{$_}]=~s/<a([^>]+)>(Hide|Delete|Reply|Submissions)<\/a>//g;
                    439:                     $discussionitems[$alldiscussion{$_}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
1.96      albertel  440: 		    
                    441:                     #FIXME xmlparse can't be safely called from inside xmlparse
                    442:                     #   due to the global variables that are use, the safe
                    443:                     #   space etc. I expect this has unforseen issues that
                    444:                     #   need resolving.
                    445: 		    
                    446:                     $discussion.=&Apache::lonxml::xmlparse('','tex',$discussionitems[$alldiscussion{$_}]);
1.95      sakharuk  447: 		}
1.69      www       448: 	    }
1.80      raeburn   449:         }
1.95      sakharuk  450: 	if ($outputtarget ne 'tex') {
1.97      raeburn   451:             my $colspan=$maxdepth+1;
                    452:             $discussion .= <<END; 
                    453:             <tr bgcolor="#FFFFFF">
1.98      raeburn   454:              <td colspan="$colspan" valign="top">
1.97      raeburn   455:               <table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">
                    456:                <tr>
                    457:                 <td align="left">
                    458:                  <table border="0" cellpadding="0" cellspacing="4">
                    459:                   <tr>
                    460:                    <td>
                    461:                     <font size="-1"><b>$lt{'cuse'}</b>:</td>
                    462:                    <td>&nbsp;</td>
                    463: END
                    464:             if ($newpostsflag) {
                    465:                 $discussion .= 
                    466:                    '<td><font size="-1">1.&nbsp;'.$lt{'disp'}.'&nbsp;-&nbsp;<i>'.$currdisp.'</i>&nbsp;&nbsp;2.&nbsp;'.$lt{'nolo'}.'&nbsp;-&nbsp;<i>'.$currmark.'</i></font></td>';
                    467:             } else {
                    468:                 $discussion .=
                    469:                    '<td><font size="-1">'.$lt{'disp'}.'&nbsp;-&nbsp;<i>'.$currdisp.'</i></font></td>';
                    470:             }
                    471:             $discussion .= <<END;
                    472:                    <td>&nbsp;</td>
                    473:                    <td>
                    474:                     <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</font></b></td>
                    475:                   </tr>
                    476:                  </table>
                    477:                 </td>
                    478:                </tr>
                    479:               </table>
                    480:              </td>
                    481:             </tr>
                    482:            </table>
                    483:            <br /><br />
                    484: END
1.95      sakharuk  485: 	}
1.54      www       486:     }
                    487:     if ($discussiononly) {
                    488: 	$discussion.=(<<ENDDISCUSS);
                    489: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
                    490: <input type="submit" name="discuss" value="Post Discussion" />
                    491: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
1.73      albertel  492: <input type="hidden" name="symb" value="$ressymb" />
1.54      www       493: <input type="hidden" name="sendit" value="true" />
                    494: <br />
                    495: <font size="1">Note: in anonymous discussion, your name is visible only to
                    496: course faculty</font><br />
1.78      raeburn   497: <b>Title:</b>&nbsp;<input type="text" name="subject" value="" size="30" /><br /><br />
1.94      www       498: <textarea name="comment" cols="80" rows="14" wrap="hard"></textarea>
1.54      www       499: <p>
                    500: Attachment (128 KB max size): <input type="file" name="attachment" />
                    501: </p>
                    502: </form>
                    503: ENDDISCUSS
1.95      sakharuk  504:         if ($outputtarget ne 'tex') {
                    505: 	    $discussion.=&generate_preview_button();
                    506: 	}
1.74      www       507:     } else {
1.92      albertel  508: 	if (&discussion_open($status) &&
1.90      albertel  509: 	    &Apache::lonnet::allowed('pch',
1.74      www       510: 				   $ENV{'request.course.id'}.
                    511: 	($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.95      sakharuk  512: 	    if ($outputtarget ne 'tex') {
                    513: 		$discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
                    514: 		    $symb.':::" '.$target.'>'.
                    515: 		    '<img src="/adm/lonMisc/chat.gif" border="0" />'.
                    516: 		    &mt('Post Discussion').'</a></td></tr></table>';
                    517: 	    }
1.74      www       518: 			}
                    519:     }
1.54      www       520:    return $discussion;
                    521: }
1.1       www       522: 
1.6       albertel  523: sub mail_screen {
                    524:   my ($r,$feedurl,$options) = @_;
1.45      www       525:   my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
                    526:                                           '','onLoad="window.focus();"');
1.51      albertel  527:   my $title=&Apache::lonnet::gettitle($feedurl);
                    528:   if (!$title) { $title = $feedurl; }
1.69      www       529:   my $quote='';
1.78      raeburn   530:   my $subject = '';
1.80      raeburn   531:   my $prevtag = '';
1.69      www       532:   if ($ENV{'form.replydisc'}) {
                    533:       my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
                    534:       my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    535: 					   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    536: 					   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.80      raeburn   537:       unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1.69      www       538: 	  my $message=$contrib{$idx.':message'};
                    539: 	  $message=~s/\n/\<br \/\>/g;
                    540: 	  $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
1.79      raeburn   541:           if ($idx > 0) {
                    542:               $subject = 'Re: '.$contrib{$idx.':subject'};
                    543:           }
1.69      www       544:       }
1.80      raeburn   545:       if ($ENV{'form.previous'}) {
                    546:           $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
                    547:       }
1.69      www       548:   }
1.85      www       549:   my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
1.86      www       550:   my $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders();
1.74      www       551:   my $send=&mt('Send');
1.6       albertel  552:   $r->print(<<ENDDOCUMENT);
1.1       www       553: <html>
                    554: <head>
                    555: <title>The LearningOnline Network with CAPA</title>
1.7       albertel  556: <meta http-equiv="pragma" content="no-cache"></meta>
1.85      www       557: $htmlheader
1.63      albertel  558: <script type="text/javascript">
                    559: //<!--
1.5       www       560:     function gosubmit() {
                    561:         var rec=0;
1.12      albertel  562:         if (typeof(document.mailform.elements.author)!="undefined") {
1.5       www       563:           if (document.mailform.elements.author.checked) {
                    564:              rec=1;
                    565:           } 
                    566:         }
1.12      albertel  567:         if (typeof(document.mailform.elements.question)!="undefined") {
1.5       www       568:           if (document.mailform.elements.question.checked) {
                    569:              rec=1;
                    570:           } 
                    571:         }
1.12      albertel  572:         if (typeof(document.mailform.elements.course)!="undefined") {
1.5       www       573:           if (document.mailform.elements.course.checked) {
                    574:              rec=1;
                    575:           } 
                    576:         }
1.12      albertel  577:         if (typeof(document.mailform.elements.policy)!="undefined") {
1.5       www       578:           if (document.mailform.elements.policy.checked) {
                    579:              rec=1;
                    580:           } 
                    581:         }
1.12      albertel  582:         if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10      www       583:           if (document.mailform.elements.discuss.checked) {
                    584:              rec=1;
                    585:           } 
                    586:         }
1.14      www       587:         if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
                    588:           if (document.mailform.elements.anondiscuss.checked) {
                    589:              rec=1;
                    590:           } 
                    591:         }
1.5       www       592: 
                    593:         if (rec) {
1.99.2.3  albertel  594:             if (typeof(document.mailform.onsubmit)=='function') {
1.99.2.2  albertel  595: 		document.mailform.onsubmit();
                    596: 	    }
1.5       www       597: 	    document.mailform.submit();
                    598:         } else {
                    599:             alert('Please check a feedback type.');
                    600: 	}
                    601:     }
1.63      albertel  602: //-->
1.5       www       603: </script>
1.1       www       604: </head>
1.29      www       605: $bodytag
1.51      albertel  606: <h2><tt>$title</tt></h2>
1.43      www       607: <form action="/adm/feedback" method="post" name="mailform"
                    608: enctype="multipart/form-data">
1.80      raeburn   609: $prevtag
1.63      albertel  610: <input type="hidden" name="postdata" value="$feedurl" />
1.68      www       611: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
1.5       www       612: Please check at least one of the following feedback types:
1.63      albertel  613: $options<hr />
1.69      www       614: $quote
1.63      albertel  615: <p>My question/comment/feedback:</p>
                    616: <p>
1.47      bowersj2  617: $latexHelp
1.78      raeburn   618: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
                    619: <p>
1.94      www       620: <textarea name="comment" id="comment" cols="60" rows="10" wrap="hard">
1.63      albertel  621: </textarea></p>
                    622: <p>
1.42      www       623: Attachment (128 KB max size): <input type="file" name="attachment" />
                    624: </p>
                    625: <p>
                    626: <input type="hidden" name="sendit" value="1" />
1.74      www       627: <input type="button" value="$send" onClick='gosubmit();' />
1.42      www       628: </p>
1.2       www       629: </form>
1.1       www       630: ENDDOCUMENT
1.99.2.2  albertel  631: $r->print(&generate_preview_button().
1.94      www       632: &Apache::lonhtmlcommon::htmlareaselectactive('comment').
1.85      www       633: '</body></html>');
1.6       albertel  634: }
                    635: 
1.97      raeburn   636: sub print_display_options {
                    637:     my ($r,$symb,$previous,$dispchg,$markchg,$feedurl) = @_;
1.98      raeburn   638:  # backward compatibility (bulletin boards used to be 'wrapped')
                    639:     if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
                    640:         $feedurl=~s|^/adm/wrapper||;
                    641:     }
                    642: 
1.97      raeburn   643:     my $function = &Apache::loncommon::get_users_function();
                    644:     my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
                    645:                                                     $ENV{'user.domain'});
                    646:     my $bodytag=&Apache::loncommon::bodytag('Discussion options',
                    647:                                           '','');
                    648: 
                    649:     my %lt = &Apache::lonlocal::texthash(
                    650:         'dido' => 'Discussion display options',
                    651:         'pref' => 'Display Preference',
                    652:         'curr' => 'Current setting ',
                    653:         'actn' => 'Action',
                    654:         'deff' => 'Default for all discussions',
                    655:         'prca' => 'Preferences can be set for this discussion that determine ....',
                    656:         'whpo' => 'Which posts are displayed when you display this bulletin board or resource, and',
                    657:         'unwh' => 'Under what circumstances posts are identfied as "New."',
                    658:         'allposts' => 'All posts',
                    659:         'unread' => 'New posts only',
                    660:         'ondisp' => 'Once displayed',
                    661:         'onmark' => 'Once marked as read',
                    662:         'disa' => 'Posts displayed?',
                    663:         'npmr' => 'New posts cease to be identified as "New"?',
                    664:         'chgt' => 'Change to ',
                    665:         'mkdf' => 'Set to ',
                    666:         'yhni' => 'You have not indicated that you wish to change either of the discussion settings',
                    667:         'ywbr' => 'You will be returned to the previous page if you click OK.'
                    668:     );
                    669: 
                    670:     my $dispchange = $lt{'unread'};
                    671:     my $markchange = $lt{'ondisp'};
                    672:     my $currdisp = $lt{'allposts'};
                    673:     my $currmark = $lt{'onmark'};
                    674:     my $discdisp = 'allposts';
                    675:     my $discmark = 'onmark';
                    676:                                                                                       
                    677:     if ($dispchg eq 'allposts') {
                    678:         $dispchange = $lt{'allposts'};
                    679:         $currdisp = $lt{'unread'};
                    680:         $discdisp = 'unread';
                    681:     }
                    682:                                                                                       
                    683:     if ($markchg eq 'markonread') {
                    684:         $markchange = $lt{'onmark'};
                    685:         $currmark = $lt{'ondisp'};
                    686:         $discmark = 'ondisp';
                    687:     }
                    688:     $r->print(<<END);
                    689: <html>
                    690: <head>
                    691: <title>$lt{'dido'}</title>
                    692: <meta http-equiv="pragma" content="no-cache" />
                    693: <script>
                    694: function setDisp() {
                    695:     var prev = "$previous"
                    696:     var chktotal = 0
                    697:     if (document.modifydisp.discdisp.checked == true) {
                    698:         document.modifydisp.$dispchg.value = "$symb"
                    699:         chktotal ++
                    700:     }
                    701:     if (document.modifydisp.discmark.checked == true) {
                    702:         document.modifydisp.$markchg.value = "$symb"
                    703:         chktotal ++
                    704:     }
                    705:     if (chktotal > 0) { 
                    706:         document.modifydisp.submit()
                    707:     } else {
                    708:         if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}"))      {
                    709:             if (prev > 0) {
                    710:                 location.href = "$feedurl?previous=$previous"
                    711:             } else {
                    712:                 location.href = "$feedurl"
                    713:             }
                    714:         }
                    715:     }
                    716: }
                    717: </script>
                    718: </head>
                    719: $bodytag
                    720: <form name="modifydisp" method="post" action="/adm/feedback">
                    721: $lt{'sdpf'}<br/> $lt{'prca'}  <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li></ol>
                    722: <br />
                    723: <table border="0" cellpadding="0" cellspacing="0">
                    724:  <tr>
                    725:   <td width="100%" bgcolor="#000000">
                    726:    <table width="100%" border="0" cellpadding="1" cellspacing="0">
                    727:     <tr>
                    728:      <td width="100%" bgcolor="#000000">
                    729:       <table border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
                    730:        <tr bgcolor="$tabcolor">
                    731:         <td><b>$lt{'pref'}</b></td>
                    732:         <td><b>$lt{'curr'}</b></td>
                    733:         <td><b>$lt{'actn'}?</b></td>
                    734:        </tr>
                    735:        <tr bgcolor="#dddddd">
                    736:        <td>$lt{'disa'}</td>
                    737:        <td>$lt{$discdisp}</td>
                    738:        <td><input type="checkbox" name="discdisp" />&nbsp;$lt{'chgt'} "$dispchange"</td>
                    739:       </tr><tr bgcolor="#eeeeee">
                    740:        <td>$lt{'npmr'}</td>
                    741:        <td>$lt{$discmark}</td>
                    742:        <td><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</td>
                    743:       </tr>
                    744:      </table>
                    745:     </td>
                    746:    </tr>
                    747:   </table>
                    748:  </td>
                    749: </tr>
                    750: </table>
                    751: <br />
                    752: <br />
                    753: <input type="hidden" name="previous" value="$previous" />
                    754: <input type="hidden" name="$dispchg" value=""/>
                    755: <input type="hidden" name="$markchg" value=""/>
                    756: <input type="button" name="sub" value="Store Changes" onClick="javascript:setDisp()" />
                    757: <br />
                    758: <br />
                    759: </form>
                    760: </body>
                    761: </html>
                    762: END
                    763:     return;
                    764: }
                    765: 
1.6       albertel  766: sub fail_redirect {
                    767:   my ($r,$feedurl) = @_;
1.70      www       768:   if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
1.6       albertel  769:   $r->print (<<ENDFAILREDIR);
1.72      albertel  770: <html>
1.5       www       771: <head><title>Feedback not sent</title>
1.63      albertel  772: <meta http-equiv="pragma" content="no-cache" />
                    773: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
1.5       www       774: </head>
                    775: <body bgcolor="#FFFFFF">
1.63      albertel  776: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.8       www       777: <b>Sorry, no recipients  ...</b>
1.99.2.5  albertel  778: <br /><a href="$feedurl">Continue</a>
1.5       www       779: </body>
                    780: </html>
                    781: ENDFAILREDIR
                    782: }
1.4       www       783: 
1.6       albertel  784: sub redirect_back {
1.80      raeburn   785:   my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
                    786:   my $prevtag = '';
                    787:   my $qrystr = '';
1.98      raeburn   788:  # backward compatibility (bulletin boards used to be 'wrapped')
                    789:   if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
                    790:       $feedurl=~s|^/adm/wrapper||;
                    791:   }
                    792: 
1.70      www       793:   if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
1.80      raeburn   794:   if ($previous > 0) {
                    795:       $qrystr = 'previous='.$previous;
                    796:       if ($feedurl =~ /\?register=1/) {
                    797:           $feedurl .= '&'.$qrystr;
                    798:       } else {
                    799:           $feedurl .= '?'.$qrystr;
                    800:       }
                    801:       $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
                    802:   }
1.6       albertel  803:   $r->print (<<ENDREDIR);
1.72      albertel  804: <html>
1.3       www       805: <head>
                    806: <title>Feedback sent</title>
1.63      albertel  807: <meta http-equiv="pragma" content="no-cache" />
1.80      raeburn   808: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
1.2       www       809: </head>
1.49      www       810: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
1.63      albertel  811: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.5       www       812: $typestyle
1.32      albertel  813: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
1.63      albertel  814: <font color="red">$status</font>
1.49      www       815: <form name="reldt" action="$feedurl" target="loncapaclient">
1.80      raeburn   816: $prevtag
1.49      www       817: </form>
1.99.2.5  albertel  818: <br /><a href="$feedurl">Continue</a>
1.2       www       819: </body>
                    820: </html>
                    821: ENDREDIR
                    822: }
1.6       albertel  823: 
                    824: sub no_redirect_back {
                    825:   my ($r,$feedurl) = @_;
                    826:   $r->print (<<ENDNOREDIR);
1.72      albertel  827: <html>
1.2       www       828: <head><title>Feedback not sent</title>
1.63      albertel  829: <meta http-equiv="pragma" content="no-cache" />
1.7       albertel  830: ENDNOREDIR
                    831: 
1.8       www       832:   if ($feedurl!~/^\/adm\/feedback/) { 
1.7       albertel  833:     $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
                    834:   }
                    835:   
1.8       www       836:   $r->print (<<ENDNOREDIRTWO);
1.2       www       837: </head>
1.49      www       838: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
1.63      albertel  839: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.8       www       840: <b>Sorry, no feedback possible on this resource  ...</b>
1.99.2.5  albertel  841: <br /><a href="$feedurl">Continue</a>
1.2       www       842: </body>
                    843: </html>
1.8       www       844: ENDNOREDIRTWO
1.2       www       845: }
1.6       albertel  846: 
                    847: sub screen_header {
1.65      www       848:     my ($feedurl) = @_;
                    849:     my $msgoptions='';
                    850:     my $discussoptions='';
                    851:     unless ($ENV{'form.replydisc'}) {
                    852: 	if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
                    853: 	    $msgoptions= 
                    854: 		'<p><input type="checkbox" name="author" /> '.
                    855: 		&mt('Feedback to resource author').'</p>';
                    856: 	}
                    857: 	if (&feedback_available(1)) {
                    858: 	    $msgoptions.=
                    859: 		'<br /><input type="checkbox" name="question" /> '.
                    860: 		&mt('Question about resource content');
                    861: 	}
                    862: 	if (&feedback_available(0,1)) {
                    863: 	    $msgoptions.=
                    864: 		'<br /><input type="checkbox" name="course" /> '.
                    865: 		&mt('Question/Comment/Feedback about course content');
                    866: 	}
                    867: 	if (&feedback_available(0,0,1)) {
                    868: 	    $msgoptions.=
                    869: 		'<br /><input type="checkbox" name="policy" /> '.
                    870: 		&mt('Question/Comment/Feedback about course policy');
                    871: 	}
                    872:     }
                    873:     if ($ENV{'request.course.id'}) {
1.92      albertel  874: 	if (&discussion_open() &&
1.90      albertel  875: 	    &Apache::lonnet::allowed('pch',
1.65      www       876: 				     $ENV{'request.course.id'}.
                    877: 				     ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.74      www       878: 	    $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
                    879: 		($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
1.65      www       880: 		&mt('Contribution to course discussion of resource');
                    881: 	    $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
                    882: 		&mt('Anonymous contribution to course discussion of resource').
                    883: 		' <i>('.&mt('name only visible to course faculty').')</i>';
1.20      www       884:       }
1.65      www       885:     }
1.74      www       886:     if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
1.65      www       887:     if ($discussoptions) { 
1.74      www       888: 	$discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
1.65      www       889:     return $msgoptions.$discussoptions;
1.6       albertel  890: }
                    891: 
                    892: sub resource_output {
                    893:   my ($feedurl) = @_;
1.46      albertel  894:   my $usersaw=&Apache::lonnet::ssi_body($feedurl);
1.6       albertel  895:   $usersaw=~s/\<body[^\>]*\>//gi;
                    896:   $usersaw=~s/\<\/body\>//gi;
                    897:   $usersaw=~s/\<html\>//gi;
                    898:   $usersaw=~s/\<\/html\>//gi;
                    899:   $usersaw=~s/\<head\>//gi;
                    900:   $usersaw=~s/\<\/head\>//gi;
                    901:   $usersaw=~s/action\s*\=/would_be_action\=/gi;
                    902:   return $usersaw;
                    903: }
                    904: 
                    905: sub clear_out_html {
1.39      www       906:   my ($message,$override)=@_;
1.88      www       907:   unless (&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
1.37      albertel  908:   my $cid=$ENV{'request.course.id'};
1.39      www       909:   if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
                    910:       ($override)) {
1.37      albertel  911:       # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 
1.88      www       912:       # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
                    913:       # <SUP>
1.37      albertel  914:       my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
1.61      www       915: 		BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
1.88      www       916:                 M=>1, SUB=>1, SUP=>1, SPAN=>1, 
                    917: 		H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
1.37      albertel  918: 
                    919:       $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
1.48      albertel  920: 	  {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\&lt;$1"}/ge;
1.37      albertel  921:       $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
1.48      albertel  922: 	  {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\&gt;"}/ge;
1.37      albertel  923:   } else {
                    924:       $message=~s/\</\&lt\;/g;
                    925:       $message=~s/\>/\&gt\;/g;
                    926:   }
1.6       albertel  927:   return $message;
                    928: }
                    929: 
                    930: sub assemble_email {
1.40      albertel  931:   my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
1.6       albertel  932:   my $email=<<"ENDEMAIL";
                    933: Refers to <a href="$feedurl">$feedurl</a>
                    934: 
                    935: $message
                    936: ENDEMAIL
                    937:     my $citations=<<"ENDCITE";
                    938: <h2>Previous attempts of student (if applicable)</h2>
                    939: $prevattempts
1.63      albertel  940: <br /><hr />
1.6       albertel  941: <h2>Original screen output (if applicable)</h2>
                    942: $usersaw
1.40      albertel  943: <h2>Correct Answer(s) (if applicable)</h2>
                    944: $useranswer
1.6       albertel  945: ENDCITE
                    946:   return ($email,$citations);
                    947: }
                    948: 
1.35      www       949: sub secapply {
                    950:     my $rec=shift;
1.36      www       951:     my $defaultflag=shift;
                    952:     $rec=~s/\s+//g;
                    953:     $rec=~s/\@/\:/g;
                    954:     my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
                    955:     if ($sections) {
                    956: 	foreach (split(/\;/,$sections)) {
                    957:             if (($_ eq $ENV{'request.course.sec'}) ||
                    958:                 ($defaultflag && ($_ eq '*'))) {
                    959:                 return $adr; 
                    960:             }
                    961:         }
                    962:     } else {
                    963:        return $rec;
                    964:     }
                    965:     return '';
1.35      www       966: }
                    967: 
1.6       albertel  968: sub decide_receiver {
1.36      www       969:   my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6       albertel  970:   my $typestyle='';
                    971:   my %to=();
1.36      www       972:   if ($ENV{'form.author'}||$author) {
1.8       www       973:     $typestyle.='Submitting as Author Feedback<br>';
1.6       albertel  974:     $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
                    975:     $to{$2.':'.$1}=1;
                    976:   }
1.36      www       977:   if ($ENV{'form.question'}||$question) {
1.8       www       978:     $typestyle.='Submitting as Question<br>';
1.24      harris41  979:     foreach (split(/\,/,
                    980: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
                    981: 	     ) {
1.36      www       982: 	my $rec=&secapply($_,$defaultflag);
                    983:         if ($rec) { $to{$rec}=1; }
1.24      harris41  984:     } 
1.6       albertel  985:   }
1.36      www       986:   if ($ENV{'form.course'}||$course) {
1.63      albertel  987:     $typestyle.='Submitting as Comment<br />';
1.24      harris41  988:     foreach (split(/\,/,
                    989: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
                    990: 	     ) {
1.36      www       991: 	my $rec=&secapply($_,$defaultflag);
                    992:         if ($rec) { $to{$rec}=1; }
1.24      harris41  993:     } 
1.6       albertel  994:   }
1.36      www       995:   if ($ENV{'form.policy'}||$policy) {
1.63      albertel  996:     $typestyle.='Submitting as Policy Feedback<br />';
1.24      harris41  997:     foreach (split(/\,/,
                    998: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
                    999: 	     ) {
1.36      www      1000: 	my $rec=&secapply($_,$defaultflag);
                   1001:         if ($rec) { $to{$rec}=1; }
1.24      harris41 1002:     } 
1.6       albertel 1003:   }
1.36      www      1004:   if ((scalar(%to) eq '0') && (!$defaultflag)) {
                   1005:      ($typestyle,%to)=
                   1006: 	 &decide_receiver($feedurl,$author,$question,$course,$policy,1);
                   1007:   }
1.6       albertel 1008:   return ($typestyle,%to);
1.36      www      1009: }
                   1010: 
                   1011: sub feedback_available {
                   1012:     my ($question,$course,$policy)=@_;
                   1013:     my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
                   1014:     return scalar(%to);
1.6       albertel 1015: }
                   1016: 
                   1017: sub send_msg {
1.43      www      1018:   my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
1.6       albertel 1019:   my $status='';
                   1020:   my $sendsomething=0;
1.24      harris41 1021:   foreach (keys %to) {
1.6       albertel 1022:     if ($_) {
1.22      www      1023:       my $declutter=&Apache::lonnet::declutter($feedurl);
1.8       www      1024:       unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.43      www      1025:                'Feedback ['.$declutter.']',$email,$citations,$feedurl,
                   1026:                 $attachmenturl)=~/ok/) {
1.63      albertel 1027: 	$status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
1.6       albertel 1028:       } else {
                   1029: 	$sendsomething++;
                   1030:       }
                   1031:     }
1.24      harris41 1032:   }
1.18      www      1033: 
                   1034:     my %record=&Apache::lonnet::restore('_feedback');
                   1035:     my ($temp)=keys %record;
                   1036:     unless ($temp=~/^error\:/) {
                   1037:        my %newrecord=();
                   1038:        $newrecord{'resource'}=$feedurl;
                   1039:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
                   1040:        unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
1.63      albertel 1041: 	   $status.='<br />'.&mt('Not registered').'<br />';
1.18      www      1042:        }
                   1043:     }
                   1044:        
1.6       albertel 1045:   return ($status,$sendsomething);
                   1046: }
                   1047: 
1.13      www      1048: sub adddiscuss {
1.78      raeburn  1049:     my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
1.13      www      1050:     my $status='';
1.92      albertel 1051:     if (&discussion_open() &&
1.90      albertel 1052: 	&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
1.23      www      1053:         ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20      www      1054: 
1.13      www      1055:     my %contrib=('message'      => $email,
                   1056:                  'sendername'   => $ENV{'user.name'},
1.26      www      1057:                  'senderdomain' => $ENV{'user.domain'},
                   1058:                  'screenname'   => $ENV{'environment.screenname'},
                   1059:                  'plainname'    => $ENV{'environment.firstname'}.' '.
                   1060: 		                   $ENV{'environment.middlename'}.' '.
                   1061:                                    $ENV{'environment.lastname'}.' '.
1.42      www      1062:                                    $ENV{'enrironment.generation'},
1.78      raeburn  1063:                  'attachmenturl'=> $attachmenturl,
                   1064:                  'subject'      => $subject);
1.65      www      1065:     if ($ENV{'form.replydisc'}) {
1.66      www      1066: 	$contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
1.65      www      1067:     }
1.14      www      1068:     if ($anon) {
                   1069: 	$contrib{'anonymous'}='true';
                   1070:     }
1.13      www      1071:     if (($symb) && ($email)) {
1.14      www      1072:        $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13      www      1073:         &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
                   1074:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17      www      1075: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21      www      1076:         my %storenewentry=($symb => time);
1.63      albertel 1077:         $status.='<br />'.&mt('Updating discussion time').': '.
1.21      www      1078:         &Apache::lonnet::put('discussiontimes',\%storenewentry,
                   1079:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                   1080: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13      www      1081:     }
1.17      www      1082:     my %record=&Apache::lonnet::restore('_discussion');
                   1083:     my ($temp)=keys %record;
                   1084:     unless ($temp=~/^error\:/) {
                   1085:        my %newrecord=();
                   1086:        $newrecord{'resource'}=$symb;
                   1087:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.63      albertel 1088:        $status.='<br />'.&mt('Registering').': '.
1.21      www      1089:                &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20      www      1090:     }
                   1091:     } else {
                   1092: 	$status.='Failed.';
1.17      www      1093:     }
1.63      albertel 1094:     return $status.'<br />';   
1.13      www      1095: }
                   1096: 
1.33      www      1097: # ----------------------------------------------------------- Preview function
                   1098: 
                   1099: sub show_preview {
                   1100:     my $r=shift;
                   1101:     my $message=&clear_out_html($ENV{'form.comment'});
                   1102:     $message=~s/\n/\<br \/\>/g;
                   1103:     $message=&Apache::lontexconvert::msgtexconverted($message);
1.78      raeburn  1104:     my $subject=&clear_out_html($ENV{'form.subject'});
                   1105:     $subject=~s/\n/\<br \/\>/g;
                   1106:     $subject=&Apache::lontexconvert::msgtexconverted($subject);
1.33      www      1107:     $r->print('<table border="2"><tr><td>'.
1.78      raeburn  1108:        '<b>Subject:</b> '.$subject.'<br /><br />'.
1.33      www      1109:        $message.'</td></tr></table>');
                   1110: }
                   1111: 
                   1112: sub generate_preview_button {
1.65      www      1113:     my $pre=&mt("Show Preview");
1.33      www      1114:     return(<<ENDPREVIEW);
                   1115: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
1.78      raeburn  1116: <input type="hidden" name="subject">
1.33      www      1117: <input type="hidden" name="comment" />
1.65      www      1118: <input type="button" value="$pre"
1.99.2.4  albertel 1119: onClick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
1.33      www      1120: </form>
                   1121: ENDPREVIEW
                   1122: }
1.71      www      1123: 
1.99.2.10! albertel 1124: sub has_discussion {
        !          1125:     my $resourcesref = shift;
        !          1126:     my $navmap = Apache::lonnavmaps::navmap->new();
        !          1127:     my @allres=$navmap->retrieveResources();
        !          1128:     foreach my $resource (@allres) {
        !          1129: 	if ($resource->hasDiscussion()) {
        !          1130: 	    my $ressymb;
        !          1131: 	    if ($resource->symb() =~ m-(___adm/\w+/\w+)/(\d+)/bulletinboard$-) {
        !          1132: 		$ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard';
        !          1133: 	    } else {
        !          1134: 		$ressymb = $resource->symb();
        !          1135: 	    }
        !          1136: 	    push @{$resourcesref}, $ressymb;
        !          1137: 	}
        !          1138:     }
        !          1139:     return;
        !          1140: }
        !          1141: 
1.6       albertel 1142: sub handler {
                   1143:   my $r = shift;
1.8       www      1144:   if ($r->header_only) {
1.71      www      1145:      &Apache::loncommon::content_type($r,'text/html');
1.8       www      1146:      $r->send_http_header;
                   1147:      return OK;
                   1148:   }
1.15      www      1149: 
                   1150: # --------------------------- Get query string for limited number of parameters
                   1151: 
1.97      raeburn  1152:   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.99.2.10! albertel 1153:          ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous','markread','markonread','markondisp','modifydisp','changes','navtime','navurl']);
        !          1154:   if ($ENV{'form.navtime'}) {
1.99      raeburn  1155:       my %discinfo = ();
                   1156:       my @resources = ();
1.99.2.10! albertel 1157:       &has_discussion(\@resources);
1.99      raeburn  1158:       my $numitems = @resources;
                   1159:       my $feedurl = '/adm/navmaps';
                   1160:       if ($ENV{'form.navurl'}) {
                   1161:           $feedurl .= '?'.$ENV{'form.navurl'};
                   1162:       }
                   1163:       my %lt = &Apache::lonlocal::texthash(
                   1164:           'mnpa' => 'Marked "New" posts as read in a total of',
1.99.2.10! albertel 1165:           'robb' => 'resources/bulletin boards.',
        !          1166:           'twnp' => 'There are currently no resources or bulletin boards with unread discussion postings.'
1.99      raeburn  1167:       );       
                   1168:       foreach (@resources) {
                   1169: # backward compatibility (bulletin boards used to be 'wrapped')
                   1170:           my $ressymb=$_;
                   1171:           if ($ressymb =~ m/bulletin___\d+___/) {
                   1172:               unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                   1173:                   $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper/|;
                   1174:               }
                   1175:           }
                   1176:           my $lastkey = $ressymb.'_lastread';
1.99.2.10! albertel 1177:           $discinfo{$lastkey} = $ENV{'form.navtime'};
        !          1178:       }
        !          1179:       my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
        !          1180:       if ($numitems > 0) {
        !          1181:           &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
        !          1182:       } else {
        !          1183:           $textline = "<b>$lt{'twnp'}</b>";
1.99      raeburn  1184:       }
                   1185:       &Apache::loncommon::content_type($r,'text/html');
                   1186:       $r->send_http_header;
                   1187:       $r->print (<<ENDREDIR);
                   1188: <html>
                   1189: <head>
                   1190: <title>New posts marked as read</title>
                   1191: <meta http-equiv="pragma" content="no-cache" />
                   1192: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
                   1193: </head>
                   1194: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
                   1195: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.99.2.10! albertel 1196: $textline
1.99      raeburn  1197: <form name="reldt" action="$feedurl" target="loncapaclient">
                   1198: </form>
1.99.2.5  albertel 1199: <br /><a href="$feedurl">Continue</a>
1.99      raeburn  1200: </body>
                   1201: </html>
                   1202: ENDREDIR
                   1203:       return OK;
                   1204:   } elsif ($ENV{'form.modifydisp'}) {
1.84      raeburn  1205:       &Apache::loncommon::content_type($r,'text/html');
                   1206:       $r->send_http_header;
1.97      raeburn  1207:       my $symb=$ENV{'form.modifydisp'};
1.84      raeburn  1208:       my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.97      raeburn  1209:       my $previous=$ENV{'form.previous'};
                   1210:       my ($dispchg,$markchg) = split/_/,$ENV{'form.changes'};
                   1211:       my $feedurl = &Apache::lonnet::clutter($url);
1.98      raeburn  1212:  # backward compatibility (bulletin boards used to be 'wrapped')  
                   1213:       if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
                   1214:           $feedurl=~s|^/adm/wrapper||;
                   1215:       }
1.97      raeburn  1216:       &print_display_options($r,$symb,$previous,$dispchg,$markchg,$feedurl);
                   1217:       return OK;
                   1218:   } elsif (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'}) || ($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'}) ) {
                   1219:       &Apache::loncommon::content_type($r,'text/html');
                   1220:       $r->send_http_header;
                   1221:       my $previous=$ENV{'form.previous'};
                   1222:       my ($map,$ind,$url);
                   1223:       if (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'})) {
                   1224: # ---------------------- Modify setting for identification of 'NEW' posts in this discussion
                   1225:           my $symb=$ENV{'form.markondisp'}?$ENV{'form.markondisp'}:$ENV{'form.markonread'};
                   1226:           my $ressymb = $symb;
                   1227:           ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
                   1228:           unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                   1229:               $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
                   1230:           }
                   1231:           my %discinfo = ();
                   1232:           my $lastkey = $ressymb.'_lastread';
                   1233:           my $ondispkey = $ressymb.'_markondisp';
                   1234:           if ($ENV{'form.markondisp'}) {
                   1235:               $discinfo{$lastkey} = time;
                   1236:               $discinfo{$ondispkey} = 1;
                   1237:           } elsif ($ENV{'form.markonread'}) {
                   1238:               if ( $previous > 0 ) {
                   1239:                   $discinfo{$lastkey} = $previous;
                   1240:               }
                   1241:               $discinfo{$ondispkey} = 0;
                   1242:           }
                   1243:           &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1.84      raeburn  1244:       }
1.97      raeburn  1245:       if (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
                   1246: # ----------------------------------------------------------------- Modify display setting for this discussion 
                   1247:           my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
                   1248:           my $ressymb = $symb;
                   1249:           ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
                   1250:           unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                   1251:               $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
                   1252:           }
                   1253:           my %discinfo = ();
                   1254:           if ($ENV{'form.allposts'}) {
                   1255:               $discinfo{$ressymb.'_showonlyunread'} = 0;
                   1256:           } elsif ($ENV{'form.onlyunread'}) {
                   1257:               $discinfo{$ressymb.'_showonlyunread'} = 1;
1.84      raeburn  1258:           }
1.97      raeburn  1259:           &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1.84      raeburn  1260:       }
1.97      raeburn  1261:       if (($ENV{'form.markonread'}) || ($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'}) ) {
                   1262:           &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$previous);
                   1263:       } else {
1.84      raeburn  1264:           &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0');
                   1265:       }
                   1266:       return OK;
                   1267:   } elsif ($ENV{'form.markread'}) {
                   1268: # ----------------------------------------------------------------- Mark new posts as read
                   1269:       &Apache::loncommon::content_type($r,'text/html');
                   1270:       $r->send_http_header;
                   1271:       my $symb=$ENV{'form.markread'};
                   1272:       my $ressymb = $symb;
                   1273:       my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
                   1274:       unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                   1275:           $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
1.78      raeburn  1276:       }
1.84      raeburn  1277:       my %discinfo = ();
                   1278:       my $lastkey = $ressymb.'_lastread';
                   1279:       $discinfo{$lastkey} = time;
                   1280:       &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
                   1281:       &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0');
1.78      raeburn  1282:       return OK;
                   1283:   } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
1.15      www      1284: # ----------------------------------------------------------------- Hide/unhide
1.71      www      1285:     &Apache::loncommon::content_type($r,'text/html');
1.15      www      1286:     $r->send_http_header;
                   1287: 
                   1288:     my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
                   1289: 
                   1290:     my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52      www      1291:     my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.15      www      1292: 
                   1293:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                   1294:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                   1295: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                   1296: 
                   1297:         
                   1298:     my $currenthidden=$contrib{'hidden'};
                   1299:     
                   1300:     if ($ENV{'form.hide'}) {
                   1301: 	$currenthidden.='.'.$idx.'.';
                   1302:     } else {
                   1303:         $currenthidden=~s/\.$idx\.//g;
                   1304:     }
                   1305:     my %newhash=('hidden' => $currenthidden);
1.38      www      1306: 
                   1307:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                   1308:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                   1309: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                   1310: 
                   1311:     &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn  1312:        &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1.69      www      1313:   } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
1.72      albertel 1314:       &Apache::loncommon::content_type($r,'text/html');
                   1315:       $r->send_http_header;
1.69      www      1316:       if ($ENV{'form.threadedon'}) {
                   1317: 	  &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
                   1318: 	  &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
                   1319:       } else {
                   1320:  	  &Apache::lonnet::del('environment',['threadeddiscussion']);
                   1321: 	  &Apache::lonnet::delenv('environment\.threadeddiscussion');
1.72      albertel 1322:       }
1.69      www      1323:       my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
                   1324:       my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
                   1325:       &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn  1326: 		     &mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
1.38      www      1327:   } elsif ($ENV{'form.deldisc'}) {
                   1328: # --------------------------------------------------------------- Hide for good
1.71      www      1329:     &Apache::loncommon::content_type($r,'text/html');
1.38      www      1330:     $r->send_http_header;
                   1331: 
                   1332:     my $entry=$ENV{'form.deldisc'};
                   1333: 
                   1334:     my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52      www      1335:     my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.38      www      1336: 
                   1337:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                   1338:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                   1339: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                   1340: 
                   1341:         
                   1342:     my $currentdeleted=$contrib{'deleted'};
                   1343:     
                   1344:     $currentdeleted.='.'.$idx.'.';
                   1345: 
                   1346:     my %newhash=('deleted' => $currentdeleted);
1.15      www      1347: 
                   1348:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                   1349:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                   1350: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                   1351: 
1.30      www      1352:     &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn  1353:        &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1.33      www      1354:   } elsif ($ENV{'form.preview'}) {
                   1355: # -------------------------------------------------------- User wants a preview
1.76      albertel 1356:       $r->content_type('text/html');
                   1357:       $r->send_http_header;
1.33      www      1358:       &show_preview($r);
1.15      www      1359:   } else {
                   1360: # ------------------------------------------------------------- Normal feedback
1.6       albertel 1361:   my $feedurl=$ENV{'form.postdata'};
                   1362:   $feedurl=~s/^http\:\/\///;
                   1363:   $feedurl=~s/^$ENV{'SERVER_NAME'}//;
                   1364:   $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.62      www      1365:   $feedurl=~s/\?.+$//;
1.8       www      1366: 
1.66      www      1367:   my $symb;
                   1368:   if ($ENV{'form.replydisc'}) {
                   1369:       $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
                   1370:       my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
                   1371:       $feedurl=&Apache::lonnet::clutter($url);
                   1372:   } else {
                   1373:       $symb=&Apache::lonnet::symbread($feedurl);
                   1374:   }
1.31      www      1375:   unless ($symb) {
                   1376:       $symb=$ENV{'form.symb'};
                   1377:       if ($symb) {
1.52      www      1378: 	  my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1.31      www      1379:           $feedurl=&Apache::lonnet::clutter($url);
                   1380:       }
                   1381:   }
1.8       www      1382:   my $goahead=1;
                   1383:   if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
                   1384:       unless ($symb) { $goahead=0; }
                   1385:   }
1.98      raeburn  1386:   # backward compatibility (bulletin boards used to be 'wrapped')
1.73      albertel 1387:   if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
                   1388:       $feedurl=~s|^/adm/wrapper||;
                   1389:   }
1.8       www      1390:   if ($goahead) {
                   1391: # Go ahead with feedback, no ambiguous reference
1.71      www      1392:     &Apache::loncommon::content_type($r,'text/html');
1.8       www      1393:     $r->send_http_header;
1.6       albertel 1394:   
1.8       www      1395:     if (
1.7       albertel 1396:       (
                   1397:        ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
                   1398:       ) 
                   1399:       || 
                   1400:       ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31      www      1401:       ||
                   1402:       ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7       albertel 1403:      ) {
1.6       albertel 1404: # --------------------------------------------------- Print login screen header
                   1405:     unless ($ENV{'form.sendit'}) {
                   1406:       my $options=&screen_header($feedurl);
                   1407:       if ($options) {
                   1408: 	&mail_screen($r,$feedurl,$options);
                   1409:       } else {
                   1410: 	&fail_redirect($r,$feedurl);
                   1411:       }
                   1412:     } else {
                   1413:       
                   1414: # Get previous user input
1.9       albertel 1415:       my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11      albertel 1416:             $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9       albertel 1417:             $ENV{'request.course.id'});
1.6       albertel 1418: 
                   1419: # Get output from resource
                   1420:       my $usersaw=&resource_output($feedurl);
                   1421: 
1.50      albertel 1422: # Get resource answer (need to allow student to view grades for this to work)
                   1423:       &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1.40      albertel 1424:       my $useranswer=&Apache::loncommon::get_student_answers(
                   1425:                        $symb,$ENV{'user.name'},$ENV{'user.domain'},
                   1426: 		       $ENV{'request.course.id'});
1.50      albertel 1427:       &Apache::lonnet::delenv('allowed.vgr');
1.42      www      1428: # Get attachments, if any, and not too large
                   1429:       my $attachmenturl='';
                   1430:       if ($ENV{'form.attachment.filename'}) {
                   1431: 	  unless (length($ENV{'form.attachment'})>131072) {
1.82      albertel 1432: 	      $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
1.42      www      1433: 	  }
                   1434:       }
1.6       albertel 1435: # Filter HTML out of message (could be nasty)
1.39      www      1436:       my $message=&clear_out_html($ENV{'form.comment'});
1.6       albertel 1437: 
                   1438: # Assemble email
1.8       www      1439:       my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1.40      albertel 1440:           $usersaw,$useranswer);
                   1441:  
1.6       albertel 1442: # Who gets this?
                   1443:       my ($typestyle,%to) = &decide_receiver($feedurl);
                   1444: 
                   1445: # Actually send mail
1.43      www      1446:       my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
                   1447:           $attachmenturl,%to);
1.13      www      1448: 
                   1449: # Discussion? Store that.
                   1450: 
1.32      albertel 1451:       my $numpost=0;
1.13      www      1452:       if ($ENV{'form.discuss'}) {
1.78      raeburn  1453:           my $subject = &clear_out_html($ENV{'form.subject'});
                   1454: 	  $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
1.32      albertel 1455: 	  $numpost++;
1.13      www      1456:       }
1.6       albertel 1457: 
1.14      www      1458:       if ($ENV{'form.anondiscuss'}) {
1.78      raeburn  1459:           my $subject = &clear_out_html($ENV{'form.subject'});
                   1460: 	  $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
1.32      albertel 1461: 	  $numpost++;
1.14      www      1462:       }
                   1463: 
                   1464: 
1.6       albertel 1465: # Receipt screen and redirect back to where came from
1.80      raeburn  1466:       &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
1.6       albertel 1467: 
                   1468:     }
1.8       www      1469:    } else {
1.7       albertel 1470: # Unable to give feedback
1.6       albertel 1471:     &no_redirect_back($r,$feedurl);
1.8       www      1472:    }
                   1473:   } else {
                   1474: # Ambiguous Problem Resource
1.60      albertel 1475:       if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1.53      albertel 1476: 	  &Apache::lonnet::cleanenv();
1.58      albertel 1477:       }
1.53      albertel 1478:       $r->internal_redirect('/adm/ambiguous');
1.6       albertel 1479:   }
1.15      www      1480: }
1.6       albertel 1481:   return OK;
1.1       www      1482: } 
                   1483: 
                   1484: 1;
                   1485: __END__

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