From 330a10b95294bcc082b880f30d9548891d63a1b0 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Tue, 15 Jun 2010 06:15:41 -0400
Subject: [PATCH] - remove debug code

---
 program/steps/mail/func.inc |  775 ++++++++++++++++++++++++++++++-----------------------------
 1 files changed, 390 insertions(+), 385 deletions(-)

diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index 3f2ac02..a63b509 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -27,7 +27,7 @@
 $EMAIL_ADDRESS_PATTERN = '([a-z0-9][a-z0-9\-\.\+\_]*@[a-z0-9][a-z0-9\-\.]*\\.[a-z]{2,5})';
 
 // actions that do not require imap connection
-$NOIMAP_ACTIONS = array('spell', 'addcontact', 'autocomplete', 'upload', 'display-attachment', 'remove-attachment');
+$NOIMAP_ACTIONS = array('addcontact', 'autocomplete', 'upload', 'display-attachment', 'remove-attachment');
 
 // always instantiate imap object (but not yet connect to server)
 $RCMAIL->imap_init();
@@ -43,7 +43,6 @@
   $OUTPUT->send('login');
 }
 
-
 // set imap properties and session vars
 if ($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC))
   $IMAP->set_mailbox(($_SESSION['mbox'] = $mbox));
@@ -58,6 +57,17 @@
   $_SESSION['sort_col'] = $CONFIG['message_sort_col'];
 if (!isset($_SESSION['sort_order']))
   $_SESSION['sort_order'] = $CONFIG['message_sort_order'];
+
+// set threads mode
+$a_threading = $RCMAIL->config->get('message_threading', array());
+if (isset($_GET['_threads'])) {
+  if ($_GET['_threads'])
+    $a_threading[$_SESSION['mbox']] = true;
+  else
+    unset($a_threading[$_SESSION['mbox']]);
+  $RCMAIL->user->save_prefs(array('message_threading' => $a_threading));
+}
+$IMAP->set_threading($a_threading[$_SESSION['mbox']]);
 
 // set message set for search result
 if (!empty($_REQUEST['_search']) && isset($_SESSION['search'][$_REQUEST['_search']]))
@@ -78,23 +88,27 @@
     if ($_SESSION['search_filter'] && $_SESSION['search_filter'] != 'ALL')
       {
       $search_request = md5($mbox_name.$_SESSION['search_filter']);
-  
+
       $IMAP->search($mbox_name, $_SESSION['search_filter'], RCMAIL_CHARSET, $_SESSION['sort_col']);
       $_SESSION['search'][$search_request] = $IMAP->get_search_set();
       $OUTPUT->set_env('search_request', $search_request);
       }
-    
+
       $search_mods = $RCMAIL->config->get('search_mods', $SEARCH_MODS_DEFAULT);
       $OUTPUT->set_env('search_mods', $search_mods);
-      
-      // make sure the message count is refreshed (for default view)
-      $IMAP->messagecount($mbox_name, 'ALL', true);
     }
-	
-  // set current mailbox in client environment
+
+  // set current mailbox and some other vars in client environment
   $OUTPUT->set_env('mailbox', $mbox_name);
+  $OUTPUT->set_env('pagesize', $IMAP->page_size);
   $OUTPUT->set_env('quota', $IMAP->get_capability('quota'));
   $OUTPUT->set_env('delimiter', $IMAP->get_hierarchy_delimiter());
+  $OUTPUT->set_env('threading', (bool) $IMAP->threading);
+  $OUTPUT->set_env('threads', $IMAP->threading
+	|| $IMAP->get_capability('thread=references')
+        || $IMAP->get_capability('thread=orderedsubject')
+        || $IMAP->get_capability('thread=refs')  
+  );
 
   if ($CONFIG['flag_for_deletion'])
     $OUTPUT->set_env('flag_for_deletion', true);
@@ -104,7 +118,9 @@
     $OUTPUT->set_env('skip_deleted', true);
   if ($CONFIG['display_next'])
     $OUTPUT->set_env('display_next', true);
-	  
+
+  $OUTPUT->set_env('preview_pane_mark_read', $RCMAIL->config->get('preview_pane_mark_read', 0));
+
   if ($CONFIG['trash_mbox'])
     $OUTPUT->set_env('trash_mailbox', $CONFIG['trash_mbox']);
   if ($CONFIG['drafts_mbox'])
@@ -113,7 +129,8 @@
     $OUTPUT->set_env('junk_mailbox', $CONFIG['junk_mbox']);
 
   if (!$OUTPUT->ajax_call)
-    $OUTPUT->add_label('checkingmail', 'deletemessage', 'movemessagetotrash', 'movingmessage');
+    $OUTPUT->add_label('checkingmail', 'deletemessage', 'movemessagetotrash',
+      'movingmessage', 'copyingmessage', 'copy', 'move');
 
   $OUTPUT->set_pagetitle(rcmail_localize_foldername($mbox_name));
   }
@@ -123,42 +140,28 @@
  * return the message list as HTML table
  */
 function rcmail_message_list($attrib)
-  {
-  global $IMAP, $CONFIG, $COMM_PATH, $OUTPUT;
+{
+  global $IMAP, $CONFIG, $OUTPUT;
 
-  $skin_path = $CONFIG['skin_path'];
-  $image_tag = '<img src="%s%s" alt="%s" />';
-
-  // check to see if we have some settings for sorting
-  $sort_col   = $_SESSION['sort_col'];
-  $sort_order = $_SESSION['sort_order'];
-  
   // add some labels to client
   $OUTPUT->add_label('from', 'to');
-
-  // get message headers
-  $a_headers = $IMAP->list_headers('', '', $sort_col, $sort_order);
 
   // add id to message list table if not specified
   if (!strlen($attrib['id']))
     $attrib['id'] = 'rcubemessagelist';
 
-  // allow the following attributes to be added to the <table> tag
-  $attrib_str = create_attrib_string($attrib, array('style', 'class', 'id', 'cellpadding', 'cellspacing', 'border', 'summary'));
-
-  $out = '<table' . $attrib_str . ">\n";
-
   // define list of cols to be displayed based on parameter or config
-  if (empty($attrib['columns']))
-      $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
-  else
-      $a_show_cols = preg_split('/[\s,;]+/', strip_quotes($attrib['columns']));
+  if (empty($attrib['columns'])) {
+    $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
+    $OUTPUT->set_env('col_movable', !in_array('list_cols', (array)$CONFIG['dont_override']));
+  }
+  else {
+    $a_show_cols = preg_split('/[\s,;]+/', strip_quotes($attrib['columns']));
+    $attrib['columns'] = $a_show_cols;
+  }
 
-  // store column list in a session-variable
-  $_SESSION['list_columns'] = $a_show_cols;
-  
-  // define sortable columns
-  $a_sort_cols = array('subject', 'date', 'from', 'to', 'size');
+  // save some variables for use in ajax list
+  $_SESSION['list_attrib'] = $attrib;
 
   $mbox = $IMAP->get_mailbox_name();
   $delim = $IMAP->get_hierarchy_delimiter();
@@ -167,199 +170,19 @@
   if ((strpos($mbox.$delim, $CONFIG['sent_mbox'].$delim)===0 || strpos($mbox.$delim, $CONFIG['drafts_mbox'].$delim)===0)
       && (($f = array_search('from', $a_show_cols)) !== false) && array_search('to', $a_show_cols) === false)
     $a_show_cols[$f] = 'to';
-  
-  // add col definition
-  $out .= '<colgroup>';
-  $out .= '<col class="icon" />';
 
-  foreach ($a_show_cols as $col)
-    $out .= ($col!='attachment') ? sprintf('<col class="%s" />', $col) : '<col class="icon" />';
+  // make sure 'threads' column is present 
+  if (!in_array('threads', $a_show_cols))
+    array_unshift($a_show_cols, 'threads');
 
-  $out .= "</colgroup>\n";
+  $skin_path = $_SESSION['skin_path'] = $CONFIG['skin_path'];
 
-  // add table title
-  $out .= "<thead><tr>\n<td class=\"icon\">&nbsp;</td>\n";
-
-  $javascript = '';
-  foreach ($a_show_cols as $col)
-    {
-    // get column name
-    switch ($col)
-      {
-      case 'flag':
-        $col_name = sprintf($image_tag, $skin_path, $attrib['unflaggedicon'], '');
-        break;
-      case 'attachment':
-        $col_name = sprintf($image_tag, $skin_path, $attrib['attachmenticon'], '');
-        break;
-      default:
-        $col_name = Q(rcube_label($col));
-    }
-
-    // make sort links
-    $sort = '';
-    if (in_array($col, $a_sort_cols))
-      {
-      // have buttons configured
-      if (!empty($attrib['sortdescbutton']) || !empty($attrib['sortascbutton']))
-        {
-        $sort = '&nbsp;&nbsp;';
-
-        // asc link
-        if (!empty($attrib['sortascbutton']))
-          {
-          $sort .= $OUTPUT->button(array(
-            'command' => 'sort',
-            'prop' => $col.'_ASC',
-            'image' => $attrib['sortascbutton'],
-            'align' => 'absmiddle',
-            'title' => 'sortasc'));
-          }       
-        
-        // desc link
-        if (!empty($attrib['sortdescbutton']))
-          {
-          $sort .= $OUTPUT->button(array(
-            'command' => 'sort',
-            'prop' => $col.'_DESC',
-            'image' => $attrib['sortdescbutton'],
-            'align' => 'absmiddle',
-            'title' => 'sortdesc'));
-          }
-        }
-      // just add a link tag to the header
-      else
-        {
-        $col_name = sprintf(
-          '<a href="./#sort" onclick="return %s.command(\'sort\',\'%s\',this)" title="%s">%s</a>',
-          JS_OBJECT_NAME,
-          $col,
-          rcube_label('sortby'),
-          $col_name);
-        }
-      }
-      
-    $sort_class = $col==$sort_col ? " sorted$sort_order" : '';
-
-    // put it all together
-    if ($col!='attachment')
-      $out .= '<td class="'.$col.$sort_class.'" id="rcm'.$col.'">' . "$col_name$sort</td>\n";
-    else    
-      $out .= '<td class="icon" id="rcm'.$col.'">' . "$col_name$sort</td>\n";
-    }
-
-  $out .= "</tr></thead>\n<tbody>\n";
-
-  // no messages in this mailbox
-  if (!sizeof($a_headers))
-    $OUTPUT->show_message('nomessagesfound', 'notice');
-
-  $a_js_message_arr = array();
-
-  // create row for each message
-  foreach ($a_headers as $i => $header)  //while (list($i, $header) = each($a_headers))
-    {
-    $message_icon = $attach_icon = $flagged_icon = '';
-    $js_row_arr = array();
-    $zebra_class = $i%2 ? ' even' : ' odd';
-
-    // set messag attributes to javascript array
-    if ($header->deleted)
-      $js_row_arr['deleted'] = true;
-    if (!$header->seen)
-      $js_row_arr['unread'] = true;
-    if ($header->answered)
-      $js_row_arr['replied'] = true;
-    if ($header->forwarded)
-      $js_row_arr['forwarded'] = true;
-    if ($header->flagged)
-      $js_row_arr['flagged'] = true;
-
-    // set message icon  
-    if ($attrib['deletedicon'] && $header->deleted)
-      $message_icon = $attrib['deletedicon'];
-    else if ($attrib['repliedicon'] && $header->answered)
-      {
-      if ($attrib['forwardedrepliedicon'] && $header->forwarded)
-        $message_icon = $attrib['forwardedrepliedicon'];
-      else
-        $message_icon = $attrib['repliedicon'];
-      }
-    else if ($attrib['forwardedicon'] && $header->forwarded)
-      $message_icon = $attrib['forwardedicon'];
-    else if ($attrib['unreadicon'] && !$header->seen)
-      $message_icon = $attrib['unreadicon'];
-    else if ($attrib['messageicon'])
-      $message_icon = $attrib['messageicon'];
-
-    if ($attrib['flaggedicon'] && $header->flagged)
-      $flagged_icon = $attrib['flaggedicon'];
-    else if ($attrib['unflaggedicon'] && !$header->flagged)
-      $flagged_icon = $attrib['unflaggedicon'];
-    
-    // set attachment icon
-    if ($attrib['attachmenticon'] && preg_match("/multipart\/m/i", $header->ctype))
-      $attach_icon = $attrib['attachmenticon'];
-        
-    $out .= sprintf('<tr id="rcmrow%d" class="message%s%s%s%s">'."\n",
-                    $header->uid,
-                    $header->seen ? '' : ' unread',
-                    $header->deleted ? ' deleted' : '',
-                    $header->flagged ? ' flagged' : '',
-                    $zebra_class);
-    
-    $out .= sprintf("<td class=\"icon\">%s</td>\n", $message_icon ? sprintf($image_tag, $skin_path, $message_icon, '') : '');
-
-    $IMAP->set_charset(!empty($header->charset) ? $header->charset : $CONFIG['default_charset']);
-  
-    // format each col
-    foreach ($a_show_cols as $col)
-      {
-      if (in_array($col, array('from', 'to', 'cc', 'replyto')))
-        $cont = Q(rcmail_address_string($header->$col, 3, false, $attrib['addicon']), 'show');
-      else if ($col=='subject')
-        {
-        $action = $mbox==$CONFIG['drafts_mbox'] ? 'compose' : 'show';
-        $uid_param = $mbox==$CONFIG['drafts_mbox'] ? '_draft_uid' : '_uid';
-        $cont = abbreviate_string(trim($IMAP->decode_header($header->$col)), 160);
-        if (empty($cont)) $cont = rcube_label('nosubject');
-        $cont = $OUTPUT->browser->ie ? Q($cont) : sprintf('<a href="%s" onclick="return rcube_event.cancel(event)">%s</a>', Q(rcmail_url($action, array($uid_param=>$header->uid, '_mbox'=>$mbox))), Q($cont));
-        }
-      else if ($col=='flag')
-        $cont = $flagged_icon ? sprintf($image_tag, $skin_path, $flagged_icon, '') : '';
-      else if ($col=='size')
-        $cont = show_bytes($header->$col);
-      else if ($col=='date')
-        $cont = format_date($header->date);
-      else
-        $cont = Q($header->$col);
-        
-      if ($col!='attachment')
-        $out .= '<td class="'.$col.'">' . $cont . "</td>\n";
-      else
-        $out .= sprintf("<td class=\"icon\">%s</td>\n", $attach_icon ? sprintf($image_tag, $skin_path, $attach_icon, '') : '&nbsp;');
-      }
-
-    $out .= "</tr>\n";
-    
-    if (sizeof($js_row_arr))
-      $a_js_message_arr[$header->uid] = $js_row_arr;
-    }
-  
-  // complete message table
-  $out .= "</tbody></table>\n";
-  
-  $message_count = $IMAP->messagecount();
-  
   // set client env
-  $OUTPUT->add_gui_object('mailcontframe', 'mailcontframe');
   $OUTPUT->add_gui_object('messagelist', $attrib['id']);
-  $OUTPUT->set_env('messagecount', $message_count);
-  $OUTPUT->set_env('current_page', $IMAP->list_page);
-  $OUTPUT->set_env('pagecount', ceil($message_count/$IMAP->page_size));
-  $OUTPUT->set_env('sort_col', $sort_col);
-  $OUTPUT->set_env('sort_order', $sort_order);
-  
+  $OUTPUT->set_env('autoexpand_threads', intval($CONFIG['autoexpand_threads']));
+  $OUTPUT->set_env('sort_col', $_SESSION['sort_col']);
+  $OUTPUT->set_env('sort_order', $_SESSION['sort_order']);
+
   if ($attrib['messageicon'])
     $OUTPUT->set_env('messageicon', $skin_path . $attrib['messageicon']);
   if ($attrib['deletedicon'])
@@ -378,58 +201,82 @@
     $OUTPUT->set_env('flaggedicon', $skin_path . $attrib['flaggedicon']);
   if ($attrib['unflaggedicon'])
     $OUTPUT->set_env('unflaggedicon', $skin_path . $attrib['unflaggedicon']);
-  
-  $OUTPUT->set_env('messages', $a_js_message_arr);
+  if ($attrib['unreadchildrenicon'])
+    $OUTPUT->set_env('unreadchildrenicon', $skin_path . $attrib['unreadchildrenicon']);
+
+  $OUTPUT->set_env('messages', array());
   $OUTPUT->set_env('coltypes', $a_show_cols);
-  
+
   $OUTPUT->include_script('list.js');
-  
-  return $out;
-  }
+
+  $thead = '';
+  foreach (rcmail_message_list_head($attrib, $a_show_cols) as $cell)
+    $thead .= html::tag('td', array('class' => $cell['className'], 'id' => $cell['id']), $cell['html']);
+
+  return html::tag('table',
+    $attrib,
+    html::tag('thead', null, html::tag('tr', null, $thead)) .
+      html::tag('tbody', null, ''),
+        array('style', 'class', 'id', 'cellpadding', 'cellspacing', 'border', 'summary'));
+}
 
 
 /**
  * return javascript commands to add rows to the message list
  * or to replace the whole list (IE only)
  */
-function rcmail_js_message_list($a_headers, $insert_top=FALSE, $replace=TRUE)
-  {
-  global $CONFIG, $IMAP, $OUTPUT;
+function rcmail_js_message_list($a_headers, $insert_top=FALSE, $head_replace=FALSE)
+{
+  global $CONFIG, $IMAP, $RCMAIL, $OUTPUT;
 
-  if (empty($_SESSION['list_columns']))
-    $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
+  if (!empty($_SESSION['list_attrib']['columns']))
+    $a_show_cols = $_SESSION['list_attrib']['columns'];
   else
-    $a_show_cols = $_SESSION['list_columns'];
+    $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
 
   $mbox = $IMAP->get_mailbox_name();
   $delim = $IMAP->get_hierarchy_delimiter();
-  
+
   // show 'to' instead of 'from' in sent/draft messages
   if ((strpos($mbox.$delim, $CONFIG['sent_mbox'].$delim)===0 || strpos($mbox.$delim, $CONFIG['drafts_mbox'].$delim)===0)
       && (($f = array_search('from', $a_show_cols)) !== false) && array_search('to', $a_show_cols) === false)
     $a_show_cols[$f] = 'to';
 
-  $browser = new rcube_browser;
+  // make sure 'threads' column is present 
+  if (!in_array('threads', $a_show_cols))
+    array_unshift($a_show_cols, 'threads');
 
-  $OUTPUT->command('set_message_coltypes', $a_show_cols);
+  // Plugins may set header's list_cols/list_flags and other rcube_mail_header variables
+  // and list columns
+  $plugin = $RCMAIL->plugins->exec_hook('messages_list',
+    array('messages' => $a_headers, 'cols' => $a_show_cols));
 
-  // remove 'attachment' and 'flag' columns, we don't need them here
-  if(($key = array_search('attachment', $a_show_cols)) !== FALSE)
+  $a_show_cols = $plugin['cols'];
+  $a_headers   = $plugin['messages'];
+
+  $thead = $head_replace ? rcmail_message_list_head($_SESSION['list_attrib'], $a_show_cols) : NULL;
+
+  $OUTPUT->command('set_message_coltypes', $a_show_cols, $thead);
+
+  if (empty($a_headers))
+    return;
+
+  // remove 'threads', 'attachment', 'flag' columns, we don't need them here
+  if (($key = array_search('attachment', $a_show_cols)) !== FALSE)
     unset($a_show_cols[$key]);
-  if(($key = array_search('flag', $a_show_cols)) !== FALSE)
+  if (($key = array_search('flag', $a_show_cols)) !== FALSE)
     unset($a_show_cols[$key]);
-
-  if ($browser->ie && $replace)
-    $OUTPUT->command('offline_message_list', true);
-
+  if (($key = array_search('threads', $a_show_cols)) !== FALSE)
+    unset($a_show_cols[$key]);
   // loop through message headers
+
   foreach ($a_headers as $n => $header)
     {
-    $a_msg_cols = array();
-    $a_msg_flags = array();
-    
     if (empty($header))
       continue;
+
+    $a_msg_cols = array();
+    $a_msg_flags = array();
 
     $IMAP->set_charset(!empty($header->charset) ? $header->charset : $CONFIG['default_charset']);
 
@@ -440,10 +287,9 @@
         $cont = Q(rcmail_address_string($header->$col, 3), 'show');
       else if ($col=='subject')
         {
-	$cont = abbreviate_string(trim($IMAP->decode_header($header->$col)), 160);
+        $cont = abbreviate_string(trim($IMAP->decode_header($header->$col)), 160);
         if (!$cont) $cont = rcube_label('nosubject');
-	$cont = Q($cont);
-	$a_msg_cols['mbox'] = $mbox;
+        $cont = Q($cont);
         }
       else if ($col=='size')
         $cont = show_bytes($header->$col);
@@ -451,10 +297,20 @@
         $cont = format_date($header->date);
       else
         $cont = Q($header->$col);
-          
+
       $a_msg_cols[$col] = $cont;
       }
 
+    if ($header->depth)
+      $a_msg_flags['depth'] = $header->depth;
+    else if ($header->has_children)
+      $roots[] = $header->uid;
+    if ($header->parent_uid)
+      $a_msg_flags['parent_uid'] = $header->parent_uid;
+    if ($header->has_children)
+      $a_msg_flags['has_children'] = $header->has_children;
+    if ($header->unread_children)
+      $a_msg_flags['unread_children'] = $header->unread_children;
     if ($header->deleted)
       $a_msg_flags['deleted'] = 1;
     if (!$header->seen)
@@ -465,18 +321,85 @@
       $a_msg_flags['forwarded'] = 1;
     if ($header->flagged)
       $a_msg_flags['flagged'] = 1;
-      
+    if(preg_match("/multipart\/m/i", $header->ctype))
+      $a_msg_flags['attachment'] = 1;
+    $a_msg_flags['mbox'] = $mbox;
+
+    // merge with plugin result
+    if (!empty($header->list_flags) && is_array($header->list_flags))
+      $a_msg_flags = array_merge($a_msg_flags, $header->list_flags);
+    if (!empty($header->list_cols) && is_array($header->list_cols))
+      $a_msg_cols = array_merge($a_msg_cols, $header->list_cols);
+
     $OUTPUT->command('add_message_row',
       $header->uid,
       $a_msg_cols,
       $a_msg_flags,
-      preg_match("/multipart\/m/i", $header->ctype),
       $insert_top);
     }
 
-  if ($browser->ie && $replace)
-    $OUTPUT->command('offline_message_list', false);
+    if ($IMAP->threading) {
+      $OUTPUT->command('init_threads', (array) $roots);
+    }
+}
+
+
+/*
+ * Creates <THEAD> for message list table
+ */
+function rcmail_message_list_head($attrib, $a_show_cols)
+{
+  global $CONFIG;
+
+  $skin_path = $_SESSION['skin_path'];
+  $image_tag = html::img(array('src' => "%s%s", 'alt' => "%s"));
+
+  // check to see if we have some settings for sorting
+  $sort_col   = $_SESSION['sort_col'];
+  $sort_order = $_SESSION['sort_order'];
+
+  // define sortable columns
+  $a_sort_cols = array('subject', 'date', 'from', 'to', 'size', 'cc');
+
+  if (!empty($attrib['optionsmenuicon']))
+    $list_menu = html::a(
+      array('href' => '#', 'onclick' => 'return '.JS_OBJECT_NAME.".command('menu-open', 'messagelistmenu')"),
+      html::img(array('src' => $skin_path . $attrib['optionsmenuicon'], 'id' => 'listmenulink', 'title' => rcube_label('listoptions')))
+    );
+  else
+    $list_menu = '';
+
+  $cells = array();
+
+  foreach ($a_show_cols as $col) {
+    // get column name
+    switch ($col) {
+      case 'flag':
+        $col_name = sprintf($image_tag, $skin_path, $attrib['unflaggedicon'], '');
+        break;
+      case 'attachment':
+        $col_name = sprintf($image_tag, $skin_path, $attrib['attachmenticon'], '');
+        break;
+      case 'threads':
+        $col_name = $list_menu;
+        break;
+      default:
+        $col_name = Q(rcube_label($col));
+    }
+
+    // make sort links
+    if (in_array($col, $a_sort_cols))
+      $col_name = html::a(array('href'=>"./#sort", 'onclick' => 'return '.JS_OBJECT_NAME.".command('sort','".$col."',this)", 'title' => rcube_label('sortby')), $col_name);
+
+    $sort_class = $col == $sort_col ? " sorted$sort_order" : '';
+    $class_name = $col == 'attachment' ? 'icon' : $col.$sort_class;
+
+    // put it all together
+    $cells[] = array('className' => $class_name, 'id' => "rcm$col", 'html' => $col_name);
   }
+
+  return $cells;
+}
 
 
 /**
@@ -485,7 +408,7 @@
 function rcmail_messagecontent_frame($attrib)
   {
   global $OUTPUT;
-  
+
   if (empty($attrib['id']))
     $attrib['id'] = 'rcmailcontentwindow';
 
@@ -501,7 +424,7 @@
 function rcmail_messagecount_display($attrib)
   {
   global $IMAP, $OUTPUT;
-  
+
   if (!$attrib['id'])
     $attrib['id'] = 'rcmcountdisplay';
 
@@ -513,7 +436,7 @@
 
 function rcmail_quota_display($attrib)
   {
-  global $OUTPUT, $COMM_PATH;
+  global $OUTPUT;
 
   if (!$attrib['id'])
     $attrib['id'] = 'rcmquotadisplay';
@@ -522,15 +445,15 @@
     $_SESSION['quota_display'] = $attrib['display'];
 
   $OUTPUT->add_gui_object('quotadisplay', $attrib['id']);
-  
+
   $quota = rcmail_quota_content($attrib);
-  
+
   if (is_array($quota)) {
     $OUTPUT->add_script('$(document).ready(function(){
 	rcmail.set_quota('.json_serialize($quota).')});', 'foot');
     $quota = '';
     }
-  
+
   return html::span($attrib, $quota);
   }
 
@@ -544,14 +467,14 @@
   $quota = $RCMAIL->imap->get_quota();
   $quota = $RCMAIL->plugins->exec_hook('quota', $quota);
 
-  if (!isset($quota['used']) || !isset($quota['total']))
-    return rcube_label('unknown');
+  if (!$quota['total'] && $RCMAIL->config->get('quota_zero_as_unlimited'))
+    return rcube_label('unlimited');
 
-  if (!($quota['total']==0 && $RCMAIL->config->get('quota_zero_as_unlimited')))
+  if ($quota['total'])
     {
     if (!isset($quota['percent']))
       $quota['percent'] = min(100, round(($quota['used']/max(1,$quota['total']))*100));
-    
+
     $quota_result = sprintf('%s / %s (%.0f%%)',
         show_bytes($quota['used'] * 1024), show_bytes($quota['total'] * 1024),
         $quota['percent']);
@@ -560,45 +483,49 @@
       $quota_result = array(
     	'percent' 	=> $quota['percent'],
         'title'		=> $quota_result,
-	);
+	  );
 
       if ($attrib['width'])
         $quota_result['width'] = $attrib['width'];
       if ($attrib['height'])
         $quota_result['height']	= $attrib['height'];
       }
-    }
-  else
-    return rcube_label('unlimited');
 
-  return $quota_result;
+      return $quota_result;
+    }
+
+  return rcube_label('unknown');
   }
 
 
 function rcmail_get_messagecount_text($count=NULL, $page=NULL)
   {
-  global $IMAP, $MESSAGE;
-  
+  global $RCMAIL, $IMAP, $MESSAGE;
+
   if (isset($MESSAGE->index))
     {
     return rcube_label(array('name' => 'messagenrof',
-                             'vars' => array('nr'  => $MESSAGE->index+1,
-                                             'count' => $count!==NULL ? $count : $IMAP->messagecount())));
+        'vars' => array('nr'  => $MESSAGE->index+1,
+        'count' => $count!==NULL ? $count : $IMAP->messagecount(NULL, 'ALL')))); // Only messages, no threads here
     }
 
   if ($page===NULL)
     $page = $IMAP->list_page;
-    
+
   $start_msg = ($page-1) * $IMAP->page_size + 1;
-  $max = $count!==NULL ? $count : $IMAP->messagecount();
+
+  if ($count!==NULL)
+    $max = $count;
+  else if ($RCMAIL->action)
+    $max = $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
 
   if ($max==0)
     $out = rcube_label('mailboxempty');
   else
-    $out = rcube_label(array('name' => 'messagesfromto',
-                              'vars' => array('from'  => $start_msg,
-                                              'to'    => min($max, $start_msg + $IMAP->page_size - 1),
-                                              'count' => $max)));
+    $out = rcube_label(array('name' => $IMAP->threading ? 'threadsfromto' : 'messagesfromto',
+            'vars' => array('from'  => $start_msg,
+            'to'    => min($max, $start_msg + $IMAP->page_size - 1),
+            'count' => $max)));
 
   return Q($out);
   }
@@ -624,19 +551,23 @@
 }
 
 
-function rcmail_send_unread_count($mbox_name, $force=false)
+function rcmail_send_unread_count($mbox_name, $force=false, $count=null)
 {
   global $RCMAIL;
-    
+
   $old_unseen = $_SESSION['unseen_count'][$mbox_name];
-  $unseen = $RCMAIL->imap->messagecount($mbox_name, 'UNSEEN', $force);
+
+  if ($count === null)
+    $unseen = $RCMAIL->imap->messagecount($mbox_name, 'UNSEEN', $force);
+  else
+    $unseen = $count;
 
   if ($unseen != $old_unseen || ($mbox_name == 'INBOX'))
     $RCMAIL->output->command('set_unread_count', $mbox_name, $unseen, ($mbox_name == 'INBOX'));
 
   // @TODO: this data is doubled (session and cache tables) if caching is enabled
   $_SESSION['unseen_count'][$mbox_name] = $unseen;
-    
+
   return $unseen;
 }
 
@@ -727,7 +658,7 @@
     'cid_map' => $cid_replaces,
     'html_elements' => array('body'),
   );
-    
+
   if (!$p['inline_html']) {
     $wash_opts['html_elements'] = array('html','head','title','body');
   }
@@ -735,7 +666,7 @@
     $wash_opts['html_elements'][] = 'link';
     $wash_opts['html_attribs'] = array('rel','type');
   }
-    
+
   $washer = new washtml($wash_opts);
   $washer->add_callback('form', 'rcmail_washtml_callback');
 
@@ -760,7 +691,7 @@
 function rcmail_print_body($part, $p = array())
 {
   global $RCMAIL;
-  
+
   // trigger plugin hook
   $data = $RCMAIL->plugins->exec_hook('message_part_before',
     array('type' => $part->ctype_secondary, 'body' => $part->body) + $p + array('safe' => false, 'plain' => false, 'inline_html' => true));
@@ -787,7 +718,7 @@
     $body = $part->body;
     $part->ctype_secondary = $data['type'] = 'plain';
   }
-  
+
   // free some memory (hopefully)
   unset($data['body']);
 
@@ -812,7 +743,7 @@
 {
   // make links and email-addresses clickable
   $replacements = new rcube_string_replacer;
-    
+
   // search for patterns like links and e-mail addresses
   $body = preg_replace_callback($replacements->link_pattern, array($replacements, 'link_callback'), $body);
   $body = preg_replace_callback($replacements->mailto_pattern, array($replacements, 'mailto_callback'), $body);
@@ -886,21 +817,21 @@
     case 'form':
       $out = html::div('form', $content);
       break;
-      
+
     case 'style':
       // decode all escaped entities and reduce to ascii strings
       $stripped = preg_replace('/[^a-zA-Z\(:]/', '', rcmail_xss_entity_decode($content));
-      
+
       // now check for evil strings like expression, behavior or url()
       if (!preg_match('/expression|behavior|url\(|import/', $stripped)) {
         $out = html::tag('style', array('type' => 'text/css'), $content);
         break;
       }
-    
+
     default:
       $out = '';
   }
-  
+
   return $out;
 }
 
@@ -928,13 +859,13 @@
   {
   global $IMAP, $OUTPUT, $MESSAGE, $PRINT_MODE, $RCMAIL;
   static $sa_attrib;
-  
+
   // keep header table attrib
   if (is_array($attrib) && !$sa_attrib)
     $sa_attrib = $attrib;
   else if (!is_array($attrib) && is_array($sa_attrib))
     $attrib = $sa_attrib;
-  
+
   if (!isset($MESSAGE))
     return FALSE;
 
@@ -968,15 +899,15 @@
       $header_value = rcube_label('nosubject');
     else
       $header_value = trim($IMAP->decode_header($headers[$hkey]));
-      
+
     $output_headers[$hkey] = array('title' => rcube_label($hkey), 'value' => $header_value, 'raw' => $headers[$hkey]);
   }
-    
+
   $plugin = $RCMAIL->plugins->exec_hook('message_headers_output', array('output' => $output_headers, 'headers' => $MESSAGE->headers));
-  
+
   // compose html table
   $table = new html_table(array('cols' => 2));
-  
+
   foreach ($plugin['output'] as $hkey => $row) {
     $table->add(array('class' => 'header-title'), Q($row['title']));
     $table->add(array('class' => $hkey, 'width' => "90%"), Q($row['value'], ($hkey == 'subject' ? 'strict' : 'show')));
@@ -1006,13 +937,13 @@
 
   if (!is_array($MESSAGE->parts) && empty($MESSAGE->body))
     return '';
-    
+
   if (!$attrib['id'])
     $attrib['id'] = 'rcmailMsgBody';
 
   $safe_mode = $MESSAGE->is_safe || intval($_GET['_safe']);
   $out = '';
-  
+
   $header_attrib = array();
   foreach ($attrib as $attr => $value)
     if (preg_match('/^headertable([a-z]+)$/i', $attr, $regs))
@@ -1033,10 +964,19 @@
         if (!isset($part->body))
           $part->body = $MESSAGE->get_part_content($part->mime_id);
 
+        // message is cached but not exists (#1485443), or other error
+        if ($part->body === false) {
+          rcmail_message_error($MESSAGE->uid);
+        }
+
+        // re-format format=flowed content
+        if ($part->ctype_secondary == "plain" && $part->ctype_parameters['format'] == "flowed")
+          $part->body = rcube_message::unfold_flowed($part->body);
+
         $body = rcmail_print_body($part, array('safe' => $safe_mode, 'plain' => !$CONFIG['prefer_html']));
 
         if ($part->ctype_secondary == 'html')
-          $out .= html::div('message-htmlpart', rcmail_html4inline($body, $attrib['id']));
+          $out .= html::div('message-htmlpart', rcmail_html4inline($body, $attrib['id'], 'div.rcmBody'));
         else
           $out .= html::div('message-part', $body);
         }
@@ -1066,7 +1006,7 @@
         }
     }
   }
-  
+
   // tell client that there are blocked remote objects
   if ($REMOTE_OBJECTS && !$safe_mode)
     $OUTPUT->set_env('blockedobjects', true);
@@ -1095,18 +1035,18 @@
 /**
  * modify a HTML message that it can be displayed inside a HTML page
  */
-function rcmail_html4inline($body, $container_id)
+function rcmail_html4inline($body, $container_id, $body_id='')
   {
   $last_style_pos = 0;
   $body_lc = strtolower($body);
-  
+
   // find STYLE tags
   while (($pos = strpos($body_lc, '<style', $last_style_pos)) && ($pos2 = strpos($body_lc, '</style>', $pos)))
     {
     $pos = strpos($body_lc, '>', $pos)+1;
 
     // replace all css definitions with #container [def]
-    $styles = rcmail_mod_css_styles(substr($body, $pos, $pos2-$pos), $container_id);
+    $styles = rcmail_mod_css_styles(substr($body, $pos, $pos2-$pos), $container_id.($body_id ? ' '.$body_id : ''));
 
     $body = substr($body, 0, $pos) . $styles . substr($body, $pos2);
     $body_lc = strtolower($body);
@@ -1118,24 +1058,39 @@
   $body = preg_replace_callback('/<(a|link)\s+([^>]+)>/Ui', 'rcmail_alter_html_link', $body);
   unset($GLOBALS['rcmail_html_container_id']);
 
-  // add comments arround html and other tags
   $out = preg_replace(array(
+      // add comments arround html and other tags
       '/(<!DOCTYPE[^>]*>)/i',
       '/(<\?xml[^>]*>)/i',
       '/(<\/?html[^>]*>)/i',
       '/(<\/?head[^>]*>)/i',
       '/(<title[^>]*>.*<\/title>)/Ui',
-      '/(<\/?meta[^>]*>)/i'),
-    '<!--\\1-->',
+      '/(<\/?meta[^>]*>)/i',
+      // quote <? of php and xml files that are specified as text/html
+      '/<\?/',
+      '/\?>/',
+      // replace <body> with <div>
+      '/<body([^>]*)>/i',
+      '/<\/body>/i',
+      ),
+    array(
+      '<!--\\1-->',
+      '<!--\\1-->',
+      '<!--\\1-->',
+      '<!--\\1-->',
+      '<!--\\1-->',
+      '<!--\\1-->',
+      '&lt;?',
+      '?&gt;',
+      '<div class="rcmBody"\\1>',
+      '</div>',
+      ),
     $body);
 
-  $out = preg_replace(
-    array('/<body([^>]*)>/i', '/<\/body>/i'),
-    array('<div class="rcmBody"\\1>', '</div>'),
-    $out);
-
-  // quote <? of php and xml files that are specified as text/html
-  $out = preg_replace(array('/<\?/', '/\?>/'), array('&lt;?', '?&gt;'), $out);
+  // make sure there's 'rcmBody' div, we need it for proper css modification
+  // its name is hardcoded in rcmail_message_body() also
+  if (!preg_match('/<div class="rcmBody"/', $out))
+    $out = '<div class="rcmBody">' . $out . '</div>';
 
   return $out;
   }
@@ -1147,13 +1102,14 @@
 function rcmail_alter_html_link($matches)
 {
   global $EMAIL_ADDRESS_PATTERN;
-  
+
   $tag = $matches[1];
   $attrib = parse_attrib_string($matches[2]);
   $end = '>';
 
   if ($tag == 'link' && preg_match('/^https?:\/\//i', $attrib['href'])) {
-    $attrib['href'] = "./bin/modcss.php?u=" . urlencode($attrib['href']) . "&amp;c=" . urlencode($GLOBALS['rcmail_html_container_id']);
+    $attrib['href'] = "?_task=utils&amp;_action=modcss&amp;u=" . urlencode($attrib['href'])
+        . "&amp;c=" . urlencode($GLOBALS['rcmail_html_container_id']);
     $end = ' />';
   }
   else if (preg_match('/^mailto:'.$EMAIL_ADDRESS_PATTERN.'(\?[^"\'>]+)?/i', $attrib['href'], $mailto)) {
@@ -1191,13 +1147,13 @@
   if ($got_writable_abook === null && $books = $RCMAIL->get_address_sources(true)) {
     $got_writable_abook = true;
   }
-  
+
   foreach ($a_parts as $part) {
     $j++;
     if ($PRINT_MODE) {
       $out .= sprintf('%s &lt;%s&gt;', Q($part['name']), $part['mailto']);
     }
-    else if (preg_match("/$EMAIL_ADDRESS_PATTERN/i", $part['mailto'])) {
+    else if (check_email($part['mailto'], false)) {
       if ($linked) {
         $out .= html::a(array(
             'href' => 'mailto:'.$part['mailto'],
@@ -1229,61 +1185,58 @@
       if ($part['mailto'])
         $out .= (strlen($out) ? ' ' : '') . sprintf('&lt;%s&gt;', Q($part['mailto']));
     }
-      
+
     if ($c>$j)
       $out .= ','.($max ? '&nbsp;' : ' ');
-        
+
     if ($max && $j==$max && $c>$j) {
       $out .= '...';
       break;
     }
   }
-    
+
   return $out;
 }
 
 
 /**
  * Wrap text to a given number of characters per line
- * but respect the mail quotation of replies messages (>)
+ * but respect the mail quotation of replies messages (>).
+ * Finally add another quotation level by prpending the lines
+ * with >
  *
  * @param string Text to wrap
  * @param int The line width
  * @return string The wrapped text
  */
-function rcmail_wrap_quoted($text, $max = 76)
+function rcmail_wrap_and_quote($text, $length = 72)
 {
   // Rebuild the message body with a maximum of $max chars, while keeping quoted message.
+  $max = min(77, $length + 8);
   $lines = preg_split('/\r?\n/', trim($text));
   $out = '';
 
   foreach ($lines as $line) {
-    if (strlen($line) > $max) {
-      if (preg_match('/^([>\s]+)/', $line, $regs)) {
-        $length = strlen($regs[0]);
-        $prefix = substr($line, 0, $length);
-
-        // Remove '> ' from the line, then wordwrap() the line
-        $line = rc_wordwrap(substr($line, $length), $max - $length);
-
-        // Rebuild the line with '> ' at the beginning of each 'subline'
-        $newline = '';
-        foreach (explode("\n", $line) as $l) {
-          $newline .= $prefix . $l . "\n";
-        }
-
-        // Remove the righest newline char
-        $line = rtrim($newline);
+    // don't wrap already quoted lines
+    if ($line[0] == '>')
+      $line = '>' . rtrim($line);
+    else if (mb_strlen($line) > $max) {
+      $newline = '';
+      foreach(explode("\n", rc_wordwrap($line, $length - 2)) as $l) {
+        if (strlen($l))
+          $newline .= '> ' . $l . "\n";
+        else
+          $newline .= ">\n";
       }
-      else {
-        $line = rc_wordwrap($line, $max);
-      }
+      $line = rtrim($newline);
     }
+    else
+      $line = '> ' . $line;
 
     // Append the line
     $out .= $line . "\n";
   }
-  
+
   return $out;
 }
 
@@ -1293,7 +1246,7 @@
   $parts = array();
   foreach ($p as $key => $val)
     $parts[] = $key . '=' . ($key == 'folder' ? base64_encode($val) : $val);
-  
+
   return join('; ', $parts);
 }
 
@@ -1307,7 +1260,7 @@
       $val = base64_decode($val);
     $info[$key] = $val;
   }
-  
+
   return $info;
 }
 
@@ -1315,25 +1268,25 @@
 function rcmail_message_part_controls()
   {
   global $MESSAGE;
-  
+
   $part = asciiwords(get_input_value('_part', RCUBE_INPUT_GPC));
   if (!is_object($MESSAGE) || !is_array($MESSAGE->parts) || !($_GET['_uid'] && $_GET['_part']) || !$MESSAGE->mime_parts[$part])
     return '';
-    
+
   $part = $MESSAGE->mime_parts[$part];
   $table = new html_table(array('cols' => 3));
-  
+
   if (!empty($part->filename)) {
     $table->add('title', Q(rcube_label('filename')));
     $table->add(null, Q($part->filename));
     $table->add(null, '[' . html::a('?'.str_replace('_frame=', '_download=', $_SERVER['QUERY_STRING']), Q(rcube_label('download'))) . ']');
   }
-  
+
   if (!empty($part->size)) {
     $table->add('title', Q(rcube_label('filesize')));
     $table->add(null, Q(show_bytes($part->size)));
   }
-  
+
   return $table->show($attrib);
   }
 
@@ -1342,7 +1295,7 @@
 function rcmail_message_part_frame($attrib)
   {
   global $MESSAGE;
-  
+
   $part = $MESSAGE->mime_parts[asciiwords(get_input_value('_part', RCUBE_INPUT_GPC))];
   $ctype_primary = strtolower($part->ctype_primary);
 
@@ -1364,7 +1317,7 @@
   $rcmail->plugins->exec_hook('cleanup_attachments',array());
   $rcmail->session->remove('compose');
   }
-  
+
 
 /**
  * Send the given message using the configured method
@@ -1387,12 +1340,12 @@
   if ($CONFIG['smtp_server']) {
     // generate list of recipients
     $a_recipients = array($mailto);
-  
+
     if (strlen($headers['Cc']))
       $a_recipients[] = $headers['Cc'];
     if (strlen($headers['Bcc']))
       $a_recipients[] = $headers['Bcc'];
-  
+
     // clean Bcc from header for recipients
     $send_headers = $headers;
     unset($send_headers['Bcc']);
@@ -1420,7 +1373,7 @@
     // send message
     if (!is_object($RCMAIL->smtp))
       $RCMAIL->smtp_init(true);
-     
+
     $sent = $RCMAIL->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body);
     $smtp_response = $RCMAIL->smtp->get_response();
     $smtp_error = $RCMAIL->smtp->get_error();
@@ -1440,18 +1393,18 @@
     $headers_enc = $message->headers($headers);
     $headers_php = $message->_headers;
     unset($headers_php['To'], $headers_php['Subject']);
-    
+
     // reset stored headers and overwrite
     $message->_headers = array();
     $header_str = $message->txtHeaders($headers_php);
-    
+
     // #1485779
     if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
       if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
         $headers_enc['To'] = implode(', ', $m[1]);
-        }
       }
-    
+    }
+
     $msg_body = $message->get();
 
     if (PEAR::isError($msg_body))
@@ -1459,18 +1412,31 @@
             'file' => __FILE__, 'line' => __LINE__,
             'message' => "Could not create message: ".$msg_body->getMessage()),
             TRUE, FALSE);
-    else if (ini_get('safe_mode'))
-      $sent = mail($headers_enc['To'], $headers_enc['Subject'], $msg_body, $header_str);
-    else
-      $sent = mail($headers_enc['To'], $headers_enc['Subject'], $msg_body, $header_str, "-f$from");
+    else {
+      $delim   = $RCMAIL->config->header_delimiter();
+      $to      = $headers_enc['To'];
+      $subject = $headers_enc['Subject'];
+
+      if ($delim != "\r\n") {
+        $header_str = str_replace("\r\n", $delim, $header_str);
+        $msg_body   = str_replace("\r\n", $delim, $msg_body);
+        $to         = str_replace("\r\n", $delim, $to);
+        $subject    = str_replace("\r\n", $delim, $subject);
+      }
+
+      if (ini_get('safe_mode'))
+        $sent = mail($to, $subject, $msg_body, $header_str);
+      else
+        $sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
+    }
   }
-  
+
   if ($sent) {
     $RCMAIL->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));
-    
+
     // remove MDN headers after sending
     unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
-    
+
     if ($CONFIG['smtp_log']) {
       write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
         $RCMAIL->user->get_username(),
@@ -1482,7 +1448,7 @@
 
   $message->_headers = array();
   $message->headers($headers);
-  
+
   return $sent;
 }
 
@@ -1492,7 +1458,7 @@
   global $RCMAIL, $IMAP;
 
   $message = new rcube_message($uid);
-  
+
   if ($message->headers->mdn_to && !$message->headers->mdn_sent &&
     ($IMAP->check_permflag('MDNSENT') || $IMAP->check_permflag('*')))
   {
@@ -1501,7 +1467,7 @@
     $recipient = array_shift($IMAP->decode_address_list($message->headers->mdn_to));
     $mailto = $recipient['mailto'];
 
-    $compose = new Mail_mime($RCMAIL->config->header_delimiter());
+    $compose = new Mail_mime("\r\n");
 
     $compose->setParam('text_encoding', 'quoted-printable');
     $compose->setParam('html_encoding', 'quoted-printable');
@@ -1509,18 +1475,18 @@
     $compose->setParam('head_charset', RCMAIL_CHARSET);
     $compose->setParam('html_charset', RCMAIL_CHARSET);
     $compose->setParam('text_charset', RCMAIL_CHARSET);
-    
+
     // compose headers array
     $headers = array(
-      'Date' => date('r'),
+      'Date' => rcmail_user_date(),
       'From' => $sender,
       'To'   => $message->headers->mdn_to,
       'Subject' => rcube_label('receiptread') . ': ' . $message->subject,
       'Message-ID' => sprintf('<%s@%s>', md5(uniqid('rcmail'.mt_rand(),true)), $RCMAIL->config->mail_domain($_SESSION['imap_host'])),
       'X-Sender' => $identity['email'],
-      'Content-Type' => 'multipart/report; report-type=disposition-notification',
+      'References' => trim($message->headers->references . ' ' . $message->headers->messageID),
     );
-    
+
     if ($agent = $RCMAIL->config->get('useragent'))
       $headers['User-Agent'] = $agent;
 
@@ -1529,18 +1495,19 @@
       "\t" . rcube_label("subject") . ': ' . $message->subject . "\r\n" .
       "\t" . rcube_label("sent") . ': ' . format_date($message->headers->date, $RCMAIL->config->get('date_long')) . "\r\n" .
       "\r\n" . rcube_label("receiptnote") . "\r\n";
-    
+
     $ua = $RCMAIL->config->get('useragent', "RoundCube Webmail (Version ".RCMAIL_VERSION.")");
     $report = "Reporting-UA: $ua\r\n";
-    
+
     if ($message->headers->to)
         $report .= "Original-Recipient: {$message->headers->to}\r\n";
-    
+
     $report .= "Final-Recipient: rfc822; {$identity['email']}\r\n" .
                "Original-Message-ID: {$message->headers->messageID}\r\n" .
                "Disposition: manual-action/MDN-sent-manually; displayed\r\n";
-    
+
     $compose->headers($headers);
+    $compose->setContentType('multipart/report', array('report-type'=> 'disposition-notification'));
     $compose->setTXTBody(rc_wordwrap($body, 75, "\r\n"));
     $compose->addAttachment($report, 'message/disposition-notification', 'MDNPart2.txt', false, '7bit', 'inline');
 
@@ -1552,8 +1519,30 @@
       return true;
     }
   }
-  
+
   return false;
+}
+
+// Returns RFC2822 formatted current date in user's timezone
+function rcmail_user_date()
+{
+  global $CONFIG;
+
+  // get user's timezone
+  if ($CONFIG['timezone'] === 'auto') {
+    $tz = isset($_SESSION['timezone']) ? $_SESSION['timezone'] : date('Z')/3600;
+  }
+  else {
+    $tz = $CONFIG['timezone'];
+    if ($CONFIG['dst_active'])
+      $tz++;
+  }
+
+  $date = time() + $tz * 60 * 60;
+  $date = gmdate('r', $date);
+  $date = preg_replace('/[+-][0-9]{4}$/', sprintf('%+05d', $tz * 100), $date);
+
+  return $date;
 }
 
 
@@ -1565,7 +1554,7 @@
     $attrib['id'] = 'rcmlistfilter';
 
   $attrib['onchange'] = JS_OBJECT_NAME.'.filter_mailbox(this.value)';
-  
+
   /*
     RFC3501 (6.4.4): 'ALL', 'RECENT', 
     'ANSWERED', 'DELETED', 'FLAGGED', 'SEEN',
@@ -1586,7 +1575,23 @@
 
   $OUTPUT->add_gui_object('search_filter', $attrib['id']);
 
-  return $out;										
+  return $out;
+}
+
+function rcmail_message_error($uid=null)
+{
+  global $RCMAIL;
+
+  // Set env variables for messageerror.html template
+  if ($RCMAIL->action == 'show') {
+    $mbox_name = $RCMAIL->imap->get_mailbox_name();
+    $RCMAIL->output->set_env('mailbox', $mbox_name);
+    $RCMAIL->output->set_env('uid', null);
+  }
+  // display error message
+  $RCMAIL->output->show_message('messageopenerror', 'error');
+  // ... display message error page
+  $RCMAIL->output->send('messageerror');
 }
 
 // register UI objects

--
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