--- loncom/interface/lonfeedback.pm	2005/11/15 20:33:20	1.174
+++ loncom/interface/lonfeedback.pm	2006/03/04 00:59:53	1.182
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Feedback
 #
-# $Id: lonfeedback.pm,v 1.174 2005/11/15 20:33:20 albertel Exp $
+# $Id: lonfeedback.pm,v 1.182 2006/03/04 00:59:53 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -39,6 +39,7 @@ use Apache::lonnet;
 use Apache::lonhtmlcommon();
 use Apache::lonnavmaps;
 use Apache::lonenc();
+use Apache::lonrss();
 use HTML::LCParser();
 use Apache::lonspeller();
 use Cwd;
@@ -905,16 +906,16 @@ sub build_posting_display {
                             } else {
                                 @{$$namesort{$lastname}{$firstname}} = ("$idx");
                             }
-                            if ($env{'course.'.$env{'request.course.id'}.'.allow_discussion_post_editing'} =~ m/yes/i) {
+                            if (&editing_allowed()) {
                                 if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
                                     $sender.=' <a href="/adm/feedback?editdisc='.
                                          $escsymb.':::'.$idx;
-                                    if ($newpostsflag) {
+                                    if ($$newpostsflag) {
                                         $sender .= '&previous='.$prevread;
                                     }
                                     $sender .= '" '.$target.'>'.&mt('Edit').'</a>';                                             
                                     unless ($seeid) {
-                                        $sender.=" <a href=\"javascript:studentdelete('$escsymb','$idx','$newpostsflag','$prevread')";
+                                        $sender.=" <a href=\"javascript:studentdelete('$escsymb','$idx','$$newpostsflag','$prevread')";
                                         $sender .= '">'.&mt('Delete').'</a>';
                                     }
                                 }
@@ -924,22 +925,22 @@ sub build_posting_display {
                                     unless ($studenthidden) {
 			                $sender.=' <a href="/adm/feedback?unhide='.
 				                $escsymb.':::'.$idx;
-                                        if ($newpostsflag) {
-                                             $sender .= '&previous='.$prevread;
+                                        if ($$newpostsflag) {
+                                            $sender .= '&previous='.$prevread;
                                         }
                                         $sender .= '">'.&mt('Make Visible').'</a>';
                                     }
 			        } else {
 				    $sender.=' <a href="/adm/feedback?hide='.
 				        $escsymb.':::'.$idx;
-                                    if ($newpostsflag) {
+                                    if ($$newpostsflag) {
                                         $sender .= '&previous='.$prevread;
                                     }
                                     $sender .= '">'.&mt('Hide').'</a>';
 			        }                     
 			        $sender.=' <a href="/adm/feedback?deldisc='.
 				        $escsymb.':::'.$idx;
-                                if ($newpostsflag) {
+                                if ($$newpostsflag) {
                                     $sender .= '&previous='.$prevread;
                                 }
                                 $sender .= '">'.&mt('Delete').'</a>';
@@ -975,8 +976,8 @@ sub build_posting_display {
 						 ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
 			    $sender.=' <a href="/adm/feedback?replydisc='.
 			            $escsymb.':::'.$idx;
-                            if ($newpostsflag) {
-                                    $sender .= '&previous='.$prevread;
+                            if ($$newpostsflag) {
+                                $sender .= '&previous='.$prevread;
                             }
                             $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
                         }
@@ -1300,7 +1301,7 @@ sub replicate_attachments {
 sub mail_screen {
   my ($r,$feedurl,$options) = @_;
   if (exists($env{'form.origpage'})) {
-      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss']);
+      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog']);
   }
   my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
                                           '','onLoad="window.focus();setposttype();"');
@@ -1484,6 +1485,11 @@ $htmlheader
              rec=1;
           } 
         }
+        if (typeof(document.mailform.elements.blog)!="undefined") {
+          if (document.mailform.elements.blog.checked) {
+             rec=1;
+          } 
+        }
 
         if (rec) {
             if (typeof(document.mailform.onsubmit)=='function') {
@@ -2140,7 +2146,7 @@ ENDFAILREDIR
 }
 
 sub redirect_back {
-  my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$numpicks) = @_;
+  my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$numpicks) = @_;
   my $sorttag = '';
   my $roletag = '';
   my $statustag = '';
@@ -2222,6 +2228,7 @@ $html
 <img align="right" src="$logo" />
 $typestyle
 <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
+$blog
 <font color="red">$status</font>
 <form name="reldt" action="$feedurl" target="loncapaclient">
 $prevtag
@@ -2307,6 +2314,8 @@ sub screen_header {
 		' <i>('.&mt('name only visible to course faculty').')</i></label> '.
 		'<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
         }
+        #$discussoptions.='<br /><label><input type="checkbox" name="blog" /> '.
+	#    &mt('Add to my public course blog').'</label>';
     }
     if ($msgoptions) { $msgoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/feedback.gif').'" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
     if ($discussoptions) { 
@@ -2469,14 +2478,16 @@ sub feedback_available {
 }
 
 sub send_msg {
-  my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
+  my ($title,$feedurl,$email,$citations,$attachmenturl,%to)=@_;
   my $status='';
   my $sendsomething=0;
+  if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
+  unless ($title=~/\w/) { $title=&mt('Feedback'); }
   foreach (keys %to) {
     if ($_) {
       my $declutter=&Apache::lonnet::declutter($feedurl);
       unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
-               'Feedback ['.$declutter.']',$email,$citations,$feedurl,
+               $title.' ['.$declutter.']',$email,$citations,$feedurl,
                 $attachmenturl)=~/ok/) {
 	$status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
       } else {
@@ -2578,7 +2589,7 @@ sub adddiscuss {
                 $newcontrib{$key} = $contrib{$_};
             }
             my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
-                  \%newcontrib,
+                  $oldsymb,$oldidx,\%contrib,
                   $env{'course.'.$env{'request.course.id'}.'.domain'},
                   $env{'course.'.$env{'request.course.id'}.'.num'});
             $status='Editing class discussion'.($anon?' (anonymous)':'');
@@ -2736,6 +2747,7 @@ END
 <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
 <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
 <input type="hidden" name="anondiscuss" value="$env{'form.anondiscuss'}" />
+<input type="hidden" name="blog" value="$env{'form.blog'}" />
 <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
 END
     foreach (@{$currnewattach}) {
@@ -2800,6 +2812,7 @@ this.form.submit();" />
 <input type="hidden" name="timestamp" value="$now" />
 <input type="hidden" name="subject" />
 <input type="hidden" name="comment" />
+<input type="hidden" name="blog" value = "0" />
 <input type="hidden" name="anondiscuss" value = "0" />
 <input type="hidden" name="discuss" value = "0" />
 <input type="hidden" name="numoldver" value="$numoldver" />
@@ -2981,7 +2994,15 @@ sub handler {
 
   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
          ['hide','unhide','deldisc','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export']);
-
+  if ($env{'form.editdisc'}) {
+      if (!(&editing_allowed())) {
+          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').'<br />',                     '0','0','','',$env{'form.previous'},'','','',);
+          return OK;
+      }
+  } 
   if ($env{'form.discsymb'}) {
       my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
       my $readkey = $symb.'_read';
@@ -3005,7 +3026,7 @@ sub handler {
 			  \%readinghash,$env{'user.domain'},$env{'user.name'});
       }
       &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
-		     '0','0','',$env{'form.previous'},'','','',);
+		     '0','0','','',$env{'form.previous'},'','','',);
       return OK;
   }
   if ($env{'form.allversions'}) {
@@ -3057,14 +3078,14 @@ END
       $discinfo{$symb.'_userpick'} = join('&',@posters);
       &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
 			   \%discinfo,$env{'user.domain'},$env{'user.name'});
-      &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0',
+      &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
 		     '',$env{'form.previous'},$env{'form.sortposts'},'','','',
 		     $numpicks);
       return OK;
   }
   if ($env{'form.applysort'}) {
       my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
-      &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0',
+      &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
 		     '',$env{'form.previous'},$env{'form.sortposts'},
 		     $env{'form.rolefilter'},$env{'form.statusfilter'},
 		     $env{'form.sectionpick'});
@@ -3168,7 +3189,7 @@ ENDREDIR
       my $previous=$env{'form.previous'};
       if ($env{'form.markondisp'}) { $previous=undef; }
       &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
-		     '0','0','',$previous);
+		     '0','0','','',$previous);
       return OK;
   } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
 # ----------------------------------------------------------------- Hide/unhide
@@ -3176,6 +3197,18 @@ ENDREDIR
       my ($symb,$idx)=split(/\:\:\:/,$entry);
       ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
 
+      my $crs='/'.$env{'request.course.id'};
+      if ($env{'request.course.sec'}) {
+          $crs.='_'.$env{'request.course.sec'};
+      }
+      $crs=~s/\_/\//g;
+      my $seeid=&Apache::lonnet::allowed('rin',$crs);
+
+      if ($env{'form.hide'} && !$seeid && !(&editing_allowed())) {
+          &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',                 '0','0','','',$env{'form.previous'},'','','',);
+          return OK;
+      }
+
       my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
                           $env{'course.'.$env{'request.course.id'}.'.domain'},
 		          $env{'course.'.$env{'request.course.id'}.'.num'});
@@ -3183,13 +3216,6 @@ ENDREDIR
       my $currenthidden=$contrib{'hidden'};
       my $currentstudenthidden=$contrib{'studenthidden'};
 
-      my $crs='/'.$env{'request.course.id'};
-      if ($env{'request.course.sec'}) {
-	  $crs.='_'.$env{'request.course.sec'};
-      }
-      $crs=~s/\_/\//g;
-      my $seeid=&Apache::lonnet::allowed('rin',$crs);
-
       if ($env{'form.hide'}) {
 	  $currenthidden.='.'.$idx.'.';
 	  unless ($seeid) {
@@ -3208,7 +3234,7 @@ ENDREDIR
 			   $env{'course.'.$env{'request.course.id'}.'.num'});
 
       &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
-		     '0','0','',$env{'form.previous'});
+		     '0','0','','',$env{'form.previous'});
       return OK;
   } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
       my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
@@ -3220,7 +3246,7 @@ ENDREDIR
 	  &Apache::lonnet::delenv('environment\.threadeddiscussion');
       }
       &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
-		     '0','0','',$env{'form.previous'});
+		     '0','0','','',$env{'form.previous'});
       return OK;
   } elsif ($env{'form.deldisc'}) {
 # --------------------------------------------------------------- Hide for good
@@ -3234,7 +3260,7 @@ ENDREDIR
 			   $env{'course.'.$env{'request.course.id'}.'.domain'},
 			   $env{'course.'.$env{'request.course.id'}.'.num'});
       &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
-		     '0','0','',$env{'form.previous'});
+		     '0','0','','',$env{'form.previous'});
       return OK;
   } elsif ($env{'form.preview'}) {
 # -------------------------------------------------------- User wants a preview
@@ -3244,7 +3270,7 @@ ENDREDIR
 # -------------------------------------------------------- Work on attachments
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
-      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','anondiscuss','discuss']);
+      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','anondiscuss','discuss','blog']);
       my (@currnewattach,@currdelold,@keepold);
       &process_attachments(\@currnewattach,\@currdelold,\@keepold);
       if (exists($env{'form.addnewattach.filename'})) {
@@ -3336,6 +3362,7 @@ ENDREDIR
 	  $r->send_http_header;
 # Unable to give feedback
 	  &no_redirect_back($r,$feedurl);
+	  return OK;
       }
 # --------------------------------------------------- Print login screen header
       unless ($env{'form.sendit'}) {
@@ -3399,7 +3426,7 @@ ENDREDIR
       my ($typestyle,%to) = &decide_receiver($feedurl);
 
 # Actually send mail
-      my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
+      my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),$feedurl,$email,$citations,
 				      $attachmenturl,%to);
 
 # Discussion? Store that.
@@ -3412,9 +3439,21 @@ ENDREDIR
 				  $subject);
 	  $numpost++;
       }
+
+# 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');
+	  $blog='<br />'.&mt('Added to my course blog').'<br />';
+      }
 	  
 # Receipt screen and redirect back to where came from
-      &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$env{'form.previous'});
+      &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'});
   }
   return OK;
 } 
@@ -3453,5 +3492,39 @@ sub get_feedurl_and_clean_symb {
     my $feedurl = &get_feedurl($symb);
     return ($symb,$feedurl);
 }
+
+sub editing_allowed {
+    my $can_edit = 0;
+    my $cid = $env{'request.course.id'};
+    my $role = (split(/\./,$env{'request.role'}))[0];
+    my $section = $env{'request.course.sec'};
+    my $allow_editing_config = $env{'course.'.$env{'request.course.id'}.
+                               '.allow_discussion_post_editing'};
+    if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
+        $can_edit = 1;
+    } else {
+        my @editor_roles = split(/,/,$allow_editing_config);
+        if (@editor_roles > 0) {
+            foreach my $editor (@editor_roles) {
+                my ($editor_role,$editor_sec) = split(/:/,$editor);
+                if ($editor_role eq $role) {
+                    if (defined($editor_sec)) {
+                        if (defined($section)) {
+                            if ($editor_sec eq $section) {
+                                $can_edit = 1;
+                                last;
+                            }
+                        }
+                    } else {
+                        $can_edit = 1;
+                        last;
+                    }
+                }
+            }
+        }
+    }
+    return $can_edit;
+}
+
 1;
 __END__