From cb2bc809ef29f349d38c89e202d821e67bb4c947 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 21 Sep 2010 14:47:55 -0400
Subject: [PATCH] Fix db_mode check in insert_id()

---
 program/steps/mail/func.inc |  729 ++++++++++++++++++++++++++++++++++++-------------------
 1 files changed, 478 insertions(+), 251 deletions(-)

diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index 7f67b29..91fd05e 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -26,8 +26,8 @@
 
 $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
-$NOIMAP_ACTIONS = array('spell', 'addcontact', 'autocomplete', 'upload', 'display-attachment', 'remove-attachment');
+// actions that do not require imap connection here
+$NOIMAP_ACTIONS = array('addcontact', 'autocomplete', 'upload', 'display-attachment', 'remove-attachment', 'get');
 
 // always instantiate imap object (but not yet connect to server)
 $RCMAIL->imap_init();
@@ -88,19 +88,16 @@
     if ($_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, $IMAP->threading ? 'THREADS' : 'ALL', true);
     }
-	
+
   // set current mailbox and some other vars in client environment
   $OUTPUT->set_env('mailbox', $mbox_name);
   $OUTPUT->set_env('pagesize', $IMAP->page_size);
@@ -133,7 +130,7 @@
 
   if (!$OUTPUT->ajax_call)
     $OUTPUT->add_label('checkingmail', 'deletemessage', 'movemessagetotrash',
-      'movingmessage', 'copyingmessage', 'copy', 'move');
+      'movingmessage', 'copyingmessage', 'copy', 'move', 'quota');
 
   $OUTPUT->set_pagetitle(rcmail_localize_foldername($mbox_name));
   }
@@ -154,15 +151,18 @@
     $attrib['id'] = 'rcubemessagelist';
 
   // 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;
+  }
 
   // save some variables for use in ajax list
-  $_SESSION['list_columns'] = $a_show_cols;
   $_SESSION['list_attrib'] = $attrib;
-  
+
   $mbox = $IMAP->get_mailbox_name();
   $delim = $IMAP->get_hierarchy_delimiter();
 
@@ -171,19 +171,20 @@
       && (($f = array_search('from', $a_show_cols)) !== false) && array_search('to', $a_show_cols) === false)
     $a_show_cols[$f] = 'to';
 
+  // make sure 'threads' and 'subject' columns are present
+  if (!in_array('subject', $a_show_cols))
+    array_unshift($a_show_cols, 'subject');
+  if (!in_array('threads', $a_show_cols))
+    array_unshift($a_show_cols, 'threads');
+
   $skin_path = $_SESSION['skin_path'] = $CONFIG['skin_path'];
-  $message_count = $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
-  
+
   // set client env
-  $OUTPUT->add_gui_object('mailcontframe', 'mailcontframe');
   $OUTPUT->add_gui_object('messagelist', $attrib['id']);
   $OUTPUT->set_env('autoexpand_threads', intval($CONFIG['autoexpand_threads']));
-  $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', $_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'])
@@ -204,72 +205,93 @@
     $OUTPUT->set_env('unflaggedicon', $skin_path . $attrib['unflaggedicon']);
   if ($attrib['unreadchildrenicon'])
     $OUTPUT->set_env('unreadchildrenicon', $skin_path . $attrib['unreadchildrenicon']);
-  
+
   $OUTPUT->set_env('messages', array());
   $OUTPUT->set_env('coltypes', $a_show_cols);
-  
-  if (!$message_count)
-    $OUTPUT->show_message('nomessagesfound', 'notice');
-  
+
   $OUTPUT->include_script('list.js');
-  
+
   $thead = '';
   foreach (rcmail_message_list_head($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'));
+        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, $head_replace=FALSE)
+function rcmail_js_message_list($a_headers, $insert_top=FALSE, $a_show_cols=null)
 {
-  global $CONFIG, $IMAP, $OUTPUT;
+  global $CONFIG, $IMAP, $RCMAIL, $OUTPUT;
 
-  if (empty($_SESSION['list_columns']))
-    $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
-  else
-    $a_show_cols = $_SESSION['list_columns'];
+  if (empty($a_show_cols)) {
+    if (!empty($_SESSION['list_attrib']['columns']))
+      $a_show_cols = $_SESSION['list_attrib']['columns'];
+    else
+      $a_show_cols = is_array($CONFIG['list_cols']) ? $CONFIG['list_cols'] : array('subject');
+  }
+  else {
+    if (!is_array($a_show_cols))
+      $a_show_cols = preg_split('/[\s,;]+/', strip_quotes($a_show_cols));
+    $head_replace = true;
+  }
 
   $mbox = $IMAP->get_mailbox_name();
   $delim = $IMAP->get_hierarchy_delimiter();
-  
+
+  // make sure 'threads' and 'subject' columns are present
+  if (!in_array('subject', $a_show_cols))
+    array_unshift($a_show_cols, 'subject');
+  if (!in_array('threads', $a_show_cols))
+    array_unshift($a_show_cols, 'threads');
+
+  $_SESSION['list_attrib']['columns'] = $a_show_cols;
+
   // show 'to' instead of 'from' in sent/draft messages
   if ((strpos($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';
 
+  // Make sure there are no duplicated columns (#1486999)
+  $a_show_cols = array_unique($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));
+
+  $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 'attachment' and 'flag' columns, we don't need them here
-  if(($key = array_search('attachment', $a_show_cols)) !== FALSE)
+  // remove 'threads', 'attachment', 'flag' columns, we don't need them here
+  if (($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[$key]);
-
-  if ($OUTPUT->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']);
 
@@ -290,12 +312,14 @@
         $cont = format_date($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)
@@ -312,9 +336,15 @@
       $a_msg_flags['forwarded'] = 1;
     if ($header->flagged)
       $a_msg_flags['flagged'] = 1;
-    if(preg_match("/multipart\/m/i", $header->ctype))
+    if (preg_match("/(application\/|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,
@@ -323,9 +353,10 @@
       $insert_top);
     }
 
-  if ($browser->ie && $replace)
-    $OUTPUT->command('offline_message_list', false);
-  }
+    if ($IMAP->threading) {
+      $OUTPUT->command('init_threads', (array) $roots);
+    }
+}
 
 
 /*
@@ -344,7 +375,7 @@
 
   // 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')"),
@@ -353,7 +384,7 @@
   else
     $list_menu = '';
 
-  $cells = array(array('className' => 'threads', 'html' => $list_menu));
+  $cells = array();
 
   foreach ($a_show_cols as $col) {
     // get column name
@@ -363,6 +394,9 @@
         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));
@@ -388,14 +422,15 @@
  */
 function rcmail_messagecontent_frame($attrib)
   {
-  global $OUTPUT;
-  
+  global $OUTPUT, $RCMAIL;
+
   if (empty($attrib['id']))
     $attrib['id'] = 'rcmailcontentwindow';
 
   $attrib['name'] = $attrib['id'];
 
-  $OUTPUT->set_env('contentframe', $attrib['id']);
+  if ($RCMAIL->config->get('preview_pane'))
+    $OUTPUT->set_env('contentframe', $attrib['id']);
   $OUTPUT->set_env('blankpage', $attrib['src'] ? $OUTPUT->abs_url($attrib['src']) : 'program/blank.gif');
 
   return html::iframe($attrib);
@@ -405,7 +440,7 @@
 function rcmail_messagecount_display($attrib)
   {
   global $IMAP, $OUTPUT;
-  
+
   if (!$attrib['id'])
     $attrib['id'] = 'rcmcountdisplay';
 
@@ -426,16 +461,13 @@
     $_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(){
+
+  $OUTPUT->add_script('$(document).ready(function(){
 	rcmail.set_quota('.json_serialize($quota).')});', 'foot');
-    $quota = '';
-    }
-  
-  return html::span($attrib, $quota);
+
+  return html::span($attrib, '');
   }
 
 
@@ -443,37 +475,35 @@
   {
   global $COMM_PATH, $RCMAIL;
 
-  $display = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';
-
   $quota = $RCMAIL->imap->get_quota();
   $quota = $RCMAIL->plugins->exec_hook('quota', $quota);
 
-  if (!isset($quota['used']) || !isset($quota['total']))
-    return rcube_label('unknown');
+  $quota_result = (array) $quota;
+  $quota_result['type'] = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';
 
-  if (!($quota['total']==0 && $RCMAIL->config->get('quota_zero_as_unlimited')))
-    {
-    if (!isset($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),
-        $quota['percent']);
-
-    if ($display == 'image') {
-      $quota_result = array(
-    	'percent' 	=> $quota['percent'],
-        'title'		=> $quota_result,
-	);
-
-      if ($attrib['width'])
-        $quota_result['width'] = $attrib['width'];
-      if ($attrib['height'])
-        $quota_result['height']	= $attrib['height'];
-      }
+  if (!$quota['total'] && $RCMAIL->config->get('quota_zero_as_unlimited')) {
+    $quota_result['title'] = rcube_label('unlimited');
+    $quota_result['percent'] = 0;
     }
-  else
-    return rcube_label('unlimited');
+  else if ($quota['total']) {
+    if (!isset($quota['percent']))
+      $quota_result['percent'] = min(100, round(($quota['used']/max(1,$quota['total']))*100));
+
+    $title = sprintf('%s / %s (%.0f%%)',
+        show_bytes($quota['used'] * 1024), show_bytes($quota['total'] * 1024),
+        $quota_result['percent']);
+
+    $quota_result['title'] = $title;
+
+    if ($attrib['width'])
+      $quota_result['width'] = $attrib['width'];
+    if ($attrib['height'])
+      $quota_result['height']	= $attrib['height'];
+    }
+  else {
+    $quota_result['title'] = rcube_label('unknown');
+    $quota_result['percent'] = 0;
+    }
 
   return $quota_result;
   }
@@ -481,8 +511,8 @@
 
 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',
@@ -492,9 +522,13 @@
 
   if ($page===NULL)
     $page = $IMAP->list_page;
-    
+
   $start_msg = ($page-1) * $IMAP->page_size + 1;
-  $max = $count!==NULL ? $count : $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
+
+  if ($count!==NULL)
+    $max = $count;
+  else if ($RCMAIL->action)
+    $max = $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
 
   if ($max==0)
     $out = rcube_label('mailboxempty');
@@ -528,19 +562,23 @@
 }
 
 
-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;
 }
 
@@ -603,6 +641,21 @@
   );
   $html = preg_replace($html_search, $html_replace, $html);
 
+  // PCRE errors handling (#1486856), should we use something like for every preg_* use?
+  if ($html === null && ($preg_error = preg_last_error()) != PREG_NO_ERROR) {
+    $errstr = "Could not clean up HTML message! PCRE Error: $preg_error.";
+
+    if ($preg_error == PREG_BACKTRACK_LIMIT_ERROR)
+      $errstr .= " Consider raising pcre.backtrack_limit!";
+    if ($preg_error == PREG_RECURSION_LIMIT_ERROR)
+      $errstr .= " Consider raising pcre.recursion_limit!";
+
+    raise_error(array('code' => 600, 'type' => 'php',
+        'line' => __LINE__, 'file' => __FILE__,
+        'message' => $errstr), true, false);
+    return '';
+  }
+
   // fix (unknown/malformed) HTML tags before "wash"
   $html = preg_replace_callback('/(<[\/]*)([^\s>]+)/', 'rcmail_html_tag_callback', $html);
 
@@ -639,7 +692,7 @@
     $wash_opts['html_elements'][] = 'link';
     $wash_opts['html_attribs'] = array('rel','type');
   }
-    
+
   $washer = new washtml($wash_opts);
   $washer->add_callback('form', 'rcmail_washtml_callback');
 
@@ -664,7 +717,7 @@
 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));
@@ -691,13 +744,13 @@
     $body = $part->body;
     $part->ctype_secondary = $data['type'] = 'plain';
   }
-  
+
   // free some memory (hopefully)
   unset($data['body']);
 
   // plaintext postprocessing
   if ($part->ctype_secondary == 'plain')
-    $body = rcmail_plain_body($body);
+    $body = rcmail_plain_body($body, $part->ctype_parameters['format'] == 'flowed');
 
   // allow post-processing of the message body
   $data = $RCMAIL->plugins->exec_hook('message_part_after', array('type' => $part->ctype_secondary, 'body' => $body) + $data);
@@ -709,75 +762,106 @@
 /**
  * Handle links and citation marks in plain text message
  *
- * @param string  Plain text string 
+ * @param string  Plain text string
+ * @param boolean Text uses format=flowed
+ *
  * @return string Formatted HTML string
  */
-function rcmail_plain_body($body)
+function rcmail_plain_body($body, $flowed=false)
 {
+  global $RCMAIL;
+
   // make links and email-addresses clickable
-  $replacements = new rcube_string_replacer;
-    
+  $replacer = 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);
+  $body = preg_replace_callback($replacer->link_pattern, array($replacer, 'link_callback'), $body);
+  $body = preg_replace_callback($replacer->mailto_pattern, array($replacer, 'mailto_callback'), $body);
 
   // split body into single lines
   $a_lines = preg_split('/\r?\n/', $body);
-  $q_lines = array();
   $quote_level = 0;
+  $last = -1;
 
   // find/mark quoted lines...
   for ($n=0, $cnt=count($a_lines); $n < $cnt; $n++) {
-    $q = 0;
-
     if ($a_lines[$n][0] == '>' && preg_match('/^(>+\s*)+/', $a_lines[$n], $regs)) {
       $q = strlen(preg_replace('/\s/', '', $regs[0]));
-        $a_lines[$n] = substr($a_lines[$n], strlen($regs[0]));
+      $a_lines[$n] = substr($a_lines[$n], strlen($regs[0]));
 
       if ($q > $quote_level)
-        $q_lines[$n]['quote'] = $q - $quote_level;
+        $a_lines[$n] = $replacer->get_replacement($replacer->add(
+          str_repeat('<blockquote>', $q - $quote_level))) . $a_lines[$n];
       else if ($q < $quote_level)
-        $q_lines[$n]['endquote'] = $quote_level - $q;
+        $a_lines[$n] = $replacer->get_replacement($replacer->add(
+          str_repeat('</blockquote>', $quote_level - $q))) . $a_lines[$n];
+      else if ($flowed) {
+        // previous line is flowed
+        if (isset($a_lines[$last]) && $a_lines[$n]
+          && $a_lines[$last][strlen($a_lines[$last])-1] == ' ') {
+          // merge lines
+          $a_lines[$last] .= $a_lines[$n];
+          unset($a_lines[$n]);
+        }
+        else
+          $last = $n;
+      }
     }
-    else if ($quote_level > 0)
-      $q_lines[$n]['endquote'] = $quote_level;
+    else {
+      $q = 0;
+      if ($flowed) {
+        // sig separator - line is fixed
+        if ($a_lines[$n] == '-- ') {
+          $last = $n;
+        }
+        else {
+          // remove space-stuffing
+          if ($a_lines[$n][0] == ' ')
+            $a_lines[$n] = substr($a_lines[$n], 1);
+
+          // previous line is flowed?
+          if (isset($a_lines[$last]) && $a_lines[$n]
+            && $a_lines[$last] != '-- '
+            && $a_lines[$last][strlen($a_lines[$last])-1] == ' '
+          ) {
+            $a_lines[$last] .= $a_lines[$n];
+            unset($a_lines[$n]);
+          }
+          else {
+            $last = $n;
+          }
+        }
+        if ($quote_level > 0)
+          $a_lines[$last] = $replacer->get_replacement($replacer->add(
+            str_repeat('</blockquote>', $quote_level))) . $a_lines[$last];
+      }
+      else if ($quote_level > 0)
+        $a_lines[$n] = $replacer->get_replacement($replacer->add(
+          str_repeat('</blockquote>', $quote_level))) . $a_lines[$n];
+    }
 
     $quote_level = $q;
   }
 
   // quote plain text
-  $body = Q(join("\n", $a_lines), 'replace', false);
+  $body = Q(join("\n", $a_lines), '', false);
 
   // colorize signature
-  if (($sp = strrpos($body, '-- ')) !== false)
-    if (($sp == 0 || $body[$sp-1] == "\n") && $body[$sp+3] == "\n") {
-      $body = substr($body, 0, max(0, $sp))
-	.'<span class="sig">'.substr($body, $sp).'</span>';
+  $len = strlen($body);
+  while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
+    if ($sp == 0 || $body[$sp-1] == "\n") {
+      // do not touch blocks with more that X lines
+      if (substr_count($body, "\n", $sp) < $RCMAIL->config->get('sig_max_lines', 15))
+        $body = substr($body, 0, max(0, $sp))
+          .'<span class="sig">'.substr($body, $sp).'</span>';
+      break;
     }
+  }
 
-  // colorize quoted lines
-  $a_lines = preg_split('/\n/', $body);
-  foreach ($q_lines as $i => $q)
-    if ($q['quote'])
-      $a_lines[$i] = str_repeat('<blockquote>', $q['quote']) . $a_lines[$i];
-    else if ($q['endquote'])
-      $a_lines[$i] = str_repeat('</blockquote>', $q['endquote']) . $a_lines[$i];
+  // insert url/mailto links and citation tags
+  $body = $replacer->resolve($body);
 
-  // insert the links for urls and mailtos
-  $body = $replacements->resolve(join("\n", $a_lines));
-    
   return $body;
-}
-
-
-/**
- * add a string to the replacement array and return a replacement string
- */
-function rcmail_str_replacement($str, &$rep)
-{
-  static $count = 0;
-  $rep[$count] = stripslashes($str);
-  return "##string_replacement{".($count++)."}##";
 }
 
 
@@ -790,21 +874,21 @@
     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;
 }
 
@@ -832,13 +916,13 @@
   {
   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;
 
@@ -872,15 +956,15 @@
       $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'], ($hkey == 'subject' ? 'strict' : 'show')));
@@ -906,17 +990,17 @@
  */
 function rcmail_message_body($attrib)
   {
-  global $CONFIG, $OUTPUT, $MESSAGE, $IMAP, $REMOTE_OBJECTS;
+  global $CONFIG, $OUTPUT, $MESSAGE, $IMAP, $RCMAIL, $REMOTE_OBJECTS;
 
   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, $regs))
@@ -937,18 +1021,42 @@
         if (!isset($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);
+        }
+
+        $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
+          'part' => $part, 'prefix' => ''));
+
         $body = rcmail_print_body($part, array('safe' => $safe_mode, 'plain' => !$CONFIG['prefer_html']));
 
-        if ($part->ctype_secondary == 'html')
-          $out .= html::div('message-htmlpart', rcmail_html4inline($body, $attrib['id'], 'div.rcmBody'));
+        if ($part->ctype_secondary == 'html') {
+          $body = rcmail_html4inline($body, $attrib['id'], 'rcmBody', $attrs);
+          $div_attr = array('class' => 'message-htmlpart');
+          $style = array();
+
+          if (!empty($attrs)) {
+            foreach ($attrs as $a_idx => $a_val)
+              $style[] = $a_idx . ': ' . $a_val;
+            if (!empty($style))
+              $div_attr['style'] = implode('; ', $style);
+          }
+
+          $out .= html::div($div_attr, $plugin['prefix'] . $body);
+        }
         else
-          $out .= html::div('message-part', $body);
+          $out .= html::div('message-part', $plugin['prefix'] . $body);
         }
       }
     }
-  else
-    $out .= html::div('message-part', html::tag('pre', array(),
+  else {
+    $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
+      'part' => $MESSAGE, 'prefix' => ''));
+
+    $out .= html::div('message-part', $plugin['prefix'] . html::tag('pre', array(),
       rcmail_plain_body(Q($MESSAGE->body, 'strict', false))));
+    }
 
   $ctype_primary = strtolower($MESSAGE->structure->ctype_primary);
   $ctype_secondary = strtolower($MESSAGE->structure->ctype_secondary);
@@ -956,11 +1064,16 @@
   // list images after mail body
   if ($CONFIG['inline_images']
       && $ctype_primary == 'multipart'
-      && !empty($MESSAGE->attachments) 
-      && !strstr($message_body, '<html'))
+      && !empty($MESSAGE->attachments))
     {
     foreach ($MESSAGE->attachments as $attach_prop) {
-      if (strpos($attach_prop->mimetype, 'image/') === 0) {
+      // Content-Type: image/*...
+      if (preg_match('/^image\//i', $attach_prop->mimetype) ||
+        // ...or known file extension: many clients are using application/octet-stream
+        ($attach_prop->filename &&
+          preg_match('/^application\/octet-stream$/i', $attach_prop->mimetype) &&
+          preg_match('/\.(jpg|jpeg|png|gif|bmp)$/i', $attach_prop->filename))
+      ) {
         $out .= html::tag('hr') . html::p(array('align' => "center"),
           html::img(array(
             'src' => $MESSAGE->get_part_url($attach_prop->mime_id),
@@ -970,7 +1083,7 @@
         }
     }
   }
-  
+
   // tell client that there are blocked remote objects
   if ($REMOTE_OBJECTS && !$safe_mode)
     $OUTPUT->set_env('blockedobjects', true);
@@ -999,30 +1112,32 @@
 /**
  * modify a HTML message that it can be displayed inside a HTML page
  */
-function rcmail_html4inline($body, $container_id, $body_id='')
-  {
+function rcmail_html4inline($body, $container_id, $body_id='', &$attributes=null)
+{
   $last_style_pos = 0;
   $body_lc = strtolower($body);
-  
+  $cont_id = $container_id.($body_id ? ' div.'.$body_id : '');
+
   // find STYLE tags
   while (($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), $container_id.($body_id ? ' '.$body_id : ''));
+    $styles = rcmail_mod_css_styles(
+      substr($body, $pos, $pos2-$pos), $cont_id);
 
     $body = substr($body, 0, $pos) . $styles . substr($body, $pos2);
     $body_lc = strtolower($body);
     $last_style_pos = $pos2;
-    }
+  }
 
   // modify HTML links to open a new window if clicked
   $GLOBALS['rcmail_html_container_id'] = $container_id;
   $body = preg_replace_callback('/<(a|link)\s+([^>]+)>/Ui', 'rcmail_alter_html_link', $body);
   unset($GLOBALS['rcmail_html_container_id']);
 
-  $out = preg_replace(array(
+  $body = preg_replace(array(
       // add comments arround html and other tags
       '/(<!DOCTYPE[^>]*>)/i',
       '/(<\?xml[^>]*>)/i',
@@ -1046,18 +1161,48 @@
       '<!--\\1-->',
       '&lt;?',
       '?&gt;',
-      '<div class="rcmBody"\\1>',
+      '<div class="'.$body_id.'"\\1>',
       '</div>',
       ),
     $body);
 
+  $attributes = array();
+
+  // Handle body attributes that doesn't play nicely with div elements
+  if (preg_match('/<div class="' . preg_quote($body_id, '/') . '" ([^>]+)/', $body, $m)) {
+    $attrs = $m[0];
+    // Get bgcolor, we'll set it as background-color of the message container
+    if (preg_match('/bgcolor=["\']*([a-z0-9#]+)["\']*/', $attrs, $mb)) {
+      $attributes['background-color'] = $mb[1];
+      $attrs = preg_replace('/bgcolor=["\']*([a-z0-9#]+)["\']*/', '', $attrs);
+    }
+    // Get background, we'll set it as background-image of the message container
+    if (preg_match('/background=["\']*([^"\'>\s]+)["\']*/', $attrs, $mb)) {
+      $attributes['background-image'] = 'url('.$mb[1].')';
+      $attrs = preg_replace('/background=["\']*([^"\'>\s]+)["\']*/', '', $attrs);
+    }
+    if (!empty($attributes))
+      $body = preg_replace('/<div class="' . preg_quote($body_id, '/') . '" [^>]+/', rtrim($attrs), $body, 1);
+
+    // handle body styles related to background image
+    if ($attributes['background-image']) {
+      // get body style
+      if (preg_match('/#'.preg_quote($cont_id, '/').'\s+\{([^}]+)}/i', $body, $m)) {
+        // get background related style
+        if (preg_match_all('/(background-position|background-repeat)\s*:\s*([^;]+);/i', $m[1], $ma, PREG_SET_ORDER)) {
+          foreach ($ma as $style)
+            $attributes[$style[1]] = $style[2];
+        }
+      }
+    }
+  }
   // 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>';
+  else
+    $body = '<div class="' . $body_id . '">' . $body . '</div>';
 
-  return $out;
-  }
+  return $body;
+}
 
 
 /**
@@ -1066,13 +1211,14 @@
 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'], $mailto)) {
@@ -1148,61 +1294,58 @@
       if ($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;
 }
 
@@ -1212,7 +1355,7 @@
   $parts = array();
   foreach ($p as $key => $val)
     $parts[] = $key . '=' . ($key == 'folder' ? base64_encode($val) : $val);
-  
+
   return join('; ', $parts);
 }
 
@@ -1226,7 +1369,7 @@
       $val = base64_decode($val);
     $info[$key] = $val;
   }
-  
+
   return $info;
 }
 
@@ -1234,25 +1377,25 @@
 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);
   }
 
@@ -1261,7 +1404,7 @@
 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);
 
@@ -1280,10 +1423,10 @@
     return;
 
   $rcmail = rcmail::get_instance();
-  $rcmail->plugins->exec_hook('cleanup_attachments',array());
+  $rcmail->plugins->exec_hook('attachments_cleanup', array());
   $rcmail->session->remove('compose');
   }
-  
+
 
 /**
  * Send the given message using the configured method
@@ -1306,12 +1449,12 @@
   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']);
@@ -1339,14 +1482,10 @@
     // 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 = $RCMAIL->smtp->get_error();
-
-    if (is_resource($msg_body)) {
-      fclose($msg_body);
-    }
 
     // log error
     if (!$sent)
@@ -1359,18 +1498,18 @@
     $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($msg_body))
@@ -1378,18 +1517,39 @@
             'file' => __FILE__, 'line' => __LINE__,
             'message' => "Could not create message: ".$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'], $headers['Disposition-Notification-To']);
-    
+
+    // get all recipients
+    if ($headers['Cc'])
+      $mailto .= $headers['Cc'];
+    if ($headers['Bcc'])
+      $mailto .= $headers['Bcc'];
+    if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
+      $mailto = implode(', ', array_unique($m[1]));
+
     if ($CONFIG['smtp_log']) {
       write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
         $RCMAIL->user->get_username(),
@@ -1399,9 +1559,13 @@
     }
   }
 
+  if (is_resource($msg_body)) {
+    fclose($msg_body);
+  }
+
   $message->_headers = array();
   $message->headers($headers);
-  
+
   return $sent;
 }
 
@@ -1411,7 +1575,7 @@
   global $RCMAIL, $IMAP;
 
   $message = new rcube_message($uid);
-  
+
   if ($message->headers->mdn_to && !$message->headers->mdn_sent &&
     ($IMAP->check_permflag('MDNSENT') || $IMAP->check_permflag('*')))
   {
@@ -1420,7 +1584,7 @@
     $recipient = array_shift($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');
@@ -1428,18 +1592,18 @@
     $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'])),
+      'Message-ID' => rcmail_gen_message_id(),
       '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;
 
@@ -1448,18 +1612,19 @@
       "\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');
 
@@ -1471,9 +1636,56 @@
       return true;
     }
   }
-  
+
   return false;
 }
+
+// Returns unique Message-ID
+function rcmail_gen_message_id()
+{
+  global $RCMAIL;
+
+  $local_part  = md5(uniqid('rcmail'.mt_rand(),true));
+  $domain_part = $RCMAIL->user->get_username('domain');
+
+  // Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
+  if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
+    if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']))
+      && preg_match('/\.[a-z]+$/i', $host)) {
+        $domain_part = $host;
+    }
+    else if (($host = preg_replace('/:[0-9]+$/', '', $_SERVER['SERVER_NAME']))
+      && preg_match('/\.[a-z]+$/i', $host)) {
+        $domain_part = $host;
+    }
+  }
+
+  return sprintf('<%s@%s>', $local_part, $domain_part);
+}
+
+// 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);
+  $tz   = sprintf('%+05d', intval($tz) * 100 + ($tz - intval($tz)) * 60);
+  $date = preg_replace('/[+-][0-9]{4}$/', $tz, $date);
+
+  return $date;
+}
+
 
 function rcmail_search_filter($attrib)
 {
@@ -1483,7 +1695,7 @@
     $attrib['id'] = 'rcmlistfilter';
 
   $attrib['onchange'] = JS_OBJECT_NAME.'.filter_mailbox(this.value)';
-  
+
   /*
     RFC3501 (6.4.4): 'ALL', 'RECENT', 
     'ANSWERED', 'DELETED', 'FLAGGED', 'SEEN',
@@ -1504,9 +1716,24 @@
 
   $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
 $OUTPUT->add_handlers(array(
@@ -1524,4 +1751,4 @@
   'searchform' => array($OUTPUT, 'search_form'),
 ));
 
-?>
+

--
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