From fbe54043cf598b19a753dc2b21a7ed558d23fd15 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Thu, 18 Aug 2011 13:40:07 -0400
Subject: [PATCH] Fix folders drop-down list: descend into root folder (e.g. INBOX) even if part of the exception list

---
 program/include/main.inc | 1265 +++++++++++++++++++++++++++++++++++++++++---------------
 1 files changed, 918 insertions(+), 347 deletions(-)

diff --git a/program/include/main.inc b/program/include/main.inc
index 7e96233..82d3eb7 100644
--- a/program/include/main.inc
+++ b/program/include/main.inc
@@ -5,7 +5,7 @@
  | program/include/main.inc                                              |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2005-2009, Roundcube Dev, - Switzerland                 |
+ | Copyright (C) 2005-2011, The Roundcube Dev Team                       |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -26,11 +26,8 @@
  * @author Thomas Bruederli <roundcube@gmail.com>
  */
 
-require_once('lib/utf7.inc');
-require_once('include/rcube_shared.inc');
-
-// fallback if not PHP modules are available
-@include_once('lib/utf8.class.php');
+require_once 'utf7.inc';
+require_once INSTALL_PATH . 'program/include/rcube_shared.inc';
 
 // define constannts for input reading
 define('RCUBE_INPUT_GET', 0x0101);
@@ -84,12 +81,25 @@
  * It's a global wrapper for rcmail::gettext()
  *
  * @param mixed Named parameters array or label name
+ * @param string Domain to search in (e.g. plugin name)
  * @return string Localized text
  * @see rcmail::gettext()
  */
 function rcube_label($p, $domain=null)
 {
   return rcmail::get_instance()->gettext($p, $domain);
+}
+
+
+/**
+ * Global wrapper of rcmail::text_exists()
+ * to check whether a text label is defined
+ *
+ * @see rcmail::text_exists()
+ */
+function rcube_label_exists($name, $domain=null)
+{
+  return rcmail::get_instance()->text_exists($name, $domain);
 }
 
 
@@ -126,26 +136,24 @@
  * Remove temp files older than two days
  */
 function rcmail_temp_gc()
-  {
+{
   $rcmail = rcmail::get_instance();
 
   $tmp = unslashify($rcmail->config->get('temp_dir'));
   $expire = mktime() - 172800;  // expire in 48 hours
 
-  if ($dir = opendir($tmp))
-    {
-    while (($fname = readdir($dir)) !== false)
-      {
+  if ($dir = opendir($tmp)) {
+    while (($fname = readdir($dir)) !== false) {
       if ($fname{0} == '.')
         continue;
 
       if (filemtime($tmp.'/'.$fname) < $expire)
         @unlink($tmp.'/'.$fname);
-      }
+    }
 
     closedir($dir);
-    }
   }
+}
 
 
 /**
@@ -154,19 +162,19 @@
  * @return void
  */
 function rcmail_cache_gc()
-  {
+{
   $rcmail = rcmail::get_instance();
   $db = $rcmail->get_dbh();
-  
+
   // get target timestamp
   $ts = get_offset_time($rcmail->config->get('message_cache_lifetime', '30d'), -1);
-  
+
   $db->query("DELETE FROM ".get_table_name('messages')."
              WHERE  created < " . $db->fromunixtime($ts));
 
   $db->query("DELETE FROM ".get_table_name('cache')."
               WHERE  created < " . $db->fromunixtime($ts));
-  }
+}
 
 
 /**
@@ -176,9 +184,9 @@
  * @param  string Error message
  */ 
 function rcube_error_handler($errno, $errstr)
-  {
+{
   throw new ErrorException($errstr, 0, $errno);
-  }
+}
 
 
 /**
@@ -191,13 +199,12 @@
  * @return string Converted string
  */
 function rcube_charset_convert($str, $from, $to=NULL)
-  {
+{
   static $iconv_options = null;
   static $mbstring_loaded = null;
   static $mbstring_list = null;
-  static $convert_warning = false;
   static $conv = null;
-  
+
   $error = false;
 
   $to = empty($to) ? strtoupper(RCMAIL_CHARSET) : rcube_parse_charset($to);
@@ -233,11 +240,11 @@
 
   if ($mbstring_loaded === null)
     $mbstring_loaded = extension_loaded('mbstring');
-    
+
   // convert charset using mbstring module
   if ($mbstring_loaded) {
     $aliases['WINDOWS-1257'] = 'ISO-8859-13';
-    
+
     if ($mbstring_list === null) {
       $mbstring_list = mb_list_encodings();
       $mbstring_list = array_map('strtoupper', $mbstring_list);
@@ -245,7 +252,7 @@
 
     $mb_from = $aliases[$from] ? $aliases[$from] : $from;
     $mb_to = $aliases[$to] ? $aliases[$to] : $to;
-    
+
     // return if encoding found, string matches encoding and convert succeeded
     if (in_array($mb_from, $mbstring_list) && in_array($mb_to, $mbstring_list)) {
       if (mb_check_encoding($str, $mb_from) && ($out = mb_convert_encoding($str, $mb_to, $mb_from)))
@@ -277,7 +284,7 @@
     }
     $error = true;
   }
-  
+
   // encode string for output
   if ($from == 'UTF-8') {
     // @TODO: we need a function for UTF-7 (RFC2152) conversion
@@ -299,23 +306,10 @@
     }
     $error = true;
   }
-  
-  // report error
-  if ($error && !$convert_warning) {
-    raise_error(array(
-      'code' => 500,
-      'type' => 'php',
-      'file' => __FILE__,
-      'line' => __LINE__,
-      'message' => "Could not convert string from $from to $to. Make sure iconv/mbstring is installed or lib/utf8.class is available."
-      ), true, false);
-    
-    $convert_warning = true;
-  }
-  
+
   // return UTF-8 or original string
   return $str;
-  }
+}
 
 
 /**
@@ -327,7 +321,7 @@
  * @return string The validated charset name
  */
 function rcube_parse_charset($input)
-  {
+{
   static $charsets = array();
   $charset = strtoupper($input);
 
@@ -340,6 +334,9 @@
     '/UNICODE-1-1-*/',  // RFC1641/1642
     '/^X-/',            // X- prefix (e.g. X-ROMAN8 => ROMAN8)
     ), '', $charset);
+
+  if ($charset == 'BINARY')
+    return $charsets[$input] = null;
 
   # Aliases: some of them from HTML5 spec.
   $aliases = array(
@@ -391,11 +388,11 @@
     // some clients sends windows-1252 text as latin1,
     // it is safe to use windows-1252 for all latin1
     $result = $iso == 'ISO-8859-1' ? 'WINDOWS-1252' : $iso;
-    }
+  }
   // handle broken charset names e.g. WINDOWS-1250HTTP-EQUIVCONTENT-TYPE
   else if (preg_match('/(WIN|WINDOWS)([0-9]+)/', $str, $m)) {
     $result = 'WINDOWS-' . $m[2];
-    }
+  }
   // LATIN
   else if (preg_match('/LATIN(.*)/', $str, $m)) {
     $aliases = array('2' => 2, '3' => 3, '4' => 4, '5' => 9, '6' => 10,
@@ -406,24 +403,24 @@
     // it is safe to use windows-1252 for all latin1
     if ($m[1] == 1) {
       $result = 'WINDOWS-1252';
-      }
+    }
     // if iconv is not supported we need ISO labels, it's also safe for iconv
     else if (!empty($aliases[$m[1]])) {
       $result = 'ISO-8859-'.$aliases[$m[1]];
-      }
+    }
     // iconv requires convertion of e.g. LATIN-1 to LATIN1
     else {
       $result = $str;
-      }
     }
+  }
   else {
     $result = $charset;
-    }
+  }
 
   $charsets[$input] = $result;
 
   return $result;
-  }
+}
 
 
 /**
@@ -536,7 +533,7 @@
     {
     if (!$html_encode_arr)
       {
-      $html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS);        
+      $html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS);
       unset($html_encode_arr['?']);
       }
 
@@ -553,10 +550,12 @@
       }
     else if ($mode=='remove')
       $str = strip_tags($str);
-    
+
+    $out = strtr($str, $encode_arr);
+
     // avoid douple quotation of &
-    $out = preg_replace('/&amp;([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', strtr($str, $encode_arr));
-      
+    $out = preg_replace('/&amp;([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', $out);
+
     return $newlines ? nl2br($out) : $out;
     }
 
@@ -723,6 +722,16 @@
 }
 
 /**
+ * Convert the given string into a valid HTML identifier
+ * Same functionality as done in app.js with this.identifier_expr
+ *
+ */
+function html_identifier($str)
+{
+  return asciiwords($str, true, '_');
+}
+
+/**
  * Remove single and double quotes from given string
  *
  * @param string Input value
@@ -773,7 +782,7 @@
     while ($table_data && ($sql_arr = $db->fetch_assoc($table_data)))
     {
       $zebra_class = $c % 2 ? 'even' : 'odd';
-      $table->add_row(array('id' => 'rcmrow' . $sql_arr[$id_col], 'class' => $zebra_class));
+      $table->add_row(array('id' => 'rcmrow' . html_identifier($sql_arr[$id_col]), 'class' => $zebra_class));
 
       // format each col
       foreach ($a_show_cols as $col)
@@ -790,11 +799,11 @@
       if (!empty($row_data['class']))
         $zebra_class .= ' '.$row_data['class'];
 
-      $table->add_row(array('id' => 'rcmrow' . $row_data[$id_col], 'class' => $zebra_class));
+      $table->add_row(array('id' => 'rcmrow' . html_identifier($row_data[$id_col]), 'class' => $zebra_class));
 
       // format each col
       foreach ($a_show_cols as $col)
-        $table->add($col, Q($row_data[$col]));
+        $table->add($col, Q(is_array($row_data[$col]) ? $row_data[$col][0] : $row_data[$col]));
         
       $c++;
     }
@@ -814,32 +823,42 @@
  * @return string HTML field definition
  */
 function rcmail_get_edit_field($col, $value, $attrib, $type='text')
-  {
-  $fname = '_'.$col;
-  $attrib['name'] = $fname;
+{
+  static $colcounts = array();
   
-  if ($type=='checkbox')
-    {
+  $fname = '_'.$col;
+  $attrib['name'] = $fname . ($attrib['array'] ? '[]' : '');
+  $attrib['class'] = trim($attrib['class'] . ' ff_' . $col);
+  
+  if ($type == 'checkbox') {
     $attrib['value'] = '1';
     $input = new html_checkbox($attrib);
-    }
-  else if ($type=='textarea')
-    {
+  }
+  else if ($type == 'textarea') {
     $attrib['cols'] = $attrib['size'];
     $input = new html_textarea($attrib);
-    }
-  else
+  }
+  else if ($type == 'select') {
+    $input = new html_select($attrib);
+    $input->add('---', '');
+    $input->add(array_values($attrib['options']), array_keys($attrib['options']));
+  }
+  else {
+    if ($attrib['type'] != 'text' && $attrib['type'] != 'hidden')
+        $attrib['type'] = 'text';
     $input = new html_inputfield($attrib);
+  }
 
   // use value from post
-  if (!empty($_POST[$fname]))
-    $value = get_input_value($fname, RCUBE_INPUT_POST,
-	    $type == 'textarea' && strpos($attrib['class'], 'mce_editor')!==false ? true : false);
+  if (isset($_POST[$fname])) {
+    $postvalue = get_input_value($fname, RCUBE_INPUT_POST, true);
+    $value = $attrib['array'] ? $postvalue[intval($colcounts[$col]++)] : $postvalue;
+  }
 
   $out = $input->show($value);
-         
+
   return $out;
-  }
+}
 
 
 /**
@@ -856,8 +875,8 @@
   $replacements = new rcube_string_replacer;
 
   // ignore the whole block if evil styles are detected
-  $stripped = preg_replace('/[^a-z\(:]/', '', rcmail_xss_entity_decode($source));
-  if (preg_match('/expression|behavior|url\(|import/', $stripped))
+  $stripped = preg_replace('/[^a-z\(:;]/', '', rcmail_xss_entity_decode($source));
+  if (preg_match('/expression|behavior|url\(|import[^a]/', $stripped))
     return '/* evil! */';
 
   // remove css comments (sometimes used for some ugly hacks)
@@ -962,6 +981,37 @@
 
 
 /**
+ * Improved equivalent to strtotime()
+ *
+ * @param string Date string
+ * @return int 
+ */
+function rcube_strtotime($date)
+{
+  // check for MS Outlook vCard date format YYYYMMDD
+  if (preg_match('/^([12][90]\d\d)([01]\d)(\d\d)$/', trim($date), $matches)) {
+    return mktime(0,0,0, intval($matches[2]), intval($matches[3]), intval($matches[1]));
+  }
+  else if (is_numeric($date))
+    return $date;
+
+  // support non-standard "GMTXXXX" literal
+  $date = preg_replace('/GMT\s*([+-][0-9]+)/', '\\1', $date);
+
+  // if date parsing fails, we have a date in non-rfc format.
+  // remove token from the end and try again
+  while ((($ts = @strtotime($date)) === false) || ($ts < 0)) {
+    $d = explode(' ', $date);
+    array_pop($d);
+    if (!$d) break;
+    $date = implode(' ', $d);
+  }
+
+  return $ts;
+}
+
+
+/**
  * Convert the given date to a human readable form
  * This uses the date formatting properties from config
  *
@@ -970,31 +1020,17 @@
  * @return string Formatted date string
  */
 function format_date($date, $format=NULL)
-  {
+{
   global $CONFIG;
   
   $ts = NULL;
 
-  if (is_numeric($date))
-    $ts = $date;
-  else if (!empty($date))
-    {
-    // support non-standard "GMTXXXX" literal
-    $date = preg_replace('/GMT\s*([+-][0-9]+)/', '\\1', $date);
-    // if date parsing fails, we have a date in non-rfc format.
-    // remove token from the end and try again
-    while ((($ts = @strtotime($date))===false) || ($ts < 0))
-      {
-        $d = explode(' ', $date);
-        array_pop($d);
-        if (!$d) break;
-        $date = implode(' ', $d);
-      }
-    }
+  if (!empty($date))
+    $ts = rcube_strtotime($date);
 
   if (empty($ts))
     return '';
-   
+
   // get user's timezone
   if ($CONFIG['timezone'] === 'auto')
     $tz = isset($_SESSION['timezone']) ? $_SESSION['timezone'] : date('Z')/3600;
@@ -1006,7 +1042,7 @@
 
   // convert time to user's timezone
   $timestamp = $ts - date('Z', $ts) + ($tz * 3600);
-  
+
   // get current timestamp in user's timezone
   $now = time();  // local time
   $now -= (int)date('Z'); // make GMT time
@@ -1014,53 +1050,67 @@
   $now_date = getdate($now);
 
   $today_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday'], $now_date['year']);
-  $week_limit = mktime(0, 0, 0, $now_date['mon'], $now_date['mday']-6, $now_date['year']);
+  $week_limit  = mktime(0, 0, 0, $now_date['mon'], $now_date['mday']-6, $now_date['year']);
 
   // define date format depending on current time
   if (!$format) {
-    if ($CONFIG['prettydate'] && $timestamp > $today_limit && $timestamp < $now)
-      return sprintf('%s %s', rcube_label('today'), date($CONFIG['date_today'] ? $CONFIG['date_today'] : 'H:i', $timestamp));
+    if ($CONFIG['prettydate'] && $timestamp > $today_limit && $timestamp < $now) {
+      $format = $CONFIG['date_today'] ? $CONFIG['date_today'] : 'H:i';
+      $today  = true;
+    }
     else if ($CONFIG['prettydate'] && $timestamp > $week_limit && $timestamp < $now)
       $format = $CONFIG['date_short'] ? $CONFIG['date_short'] : 'D H:i';
     else
       $format = $CONFIG['date_long'] ? $CONFIG['date_long'] : 'd.m.Y H:i';
-    }
+  }
 
   // strftime() format
-  if (preg_match('/%[a-z]+/i', $format))
-    return strftime($format, $timestamp);
+  if (preg_match('/%[a-z]+/i', $format)) {
+    $format = strftime($format, $timestamp);
+    return $today ? (rcube_label('today') . ' ' . $format) : $format;
+  }
 
   // parse format string manually in order to provide localized weekday and month names
   // an alternative would be to convert the date() format string to fit with strftime()
   $out = '';
-  for($i=0; $i<strlen($format); $i++)
-    {
-    if ($format{$i}=='\\')  // skip escape chars
+  for($i=0; $i<strlen($format); $i++) {
+    if ($format[$i]=='\\')  // skip escape chars
       continue;
-    
+
     // write char "as-is"
-    if ($format{$i}==' ' || $format{$i-1}=='\\')
-      $out .= $format{$i};
+    if ($format[$i]==' ' || $format{$i-1}=='\\')
+      $out .= $format[$i];
     // weekday (short)
-    else if ($format{$i}=='D')
+    else if ($format[$i]=='D')
       $out .= rcube_label(strtolower(date('D', $timestamp)));
     // weekday long
-    else if ($format{$i}=='l')
+    else if ($format[$i]=='l')
       $out .= rcube_label(strtolower(date('l', $timestamp)));
     // month name (short)
-    else if ($format{$i}=='M')
+    else if ($format[$i]=='M')
       $out .= rcube_label(strtolower(date('M', $timestamp)));
     // month name (long)
-    else if ($format{$i}=='F')
+    else if ($format[$i]=='F')
       $out .= rcube_label('long'.strtolower(date('M', $timestamp)));
-    else if ($format{$i}=='x')
+    else if ($format[$i]=='x')
       $out .= strftime('%x %X', $timestamp);
     else
-      $out .= date($format{$i}, $timestamp);
-    }
-  
-  return $out;
+      $out .= date($format[$i], $timestamp);
   }
+
+  if ($today) {
+    $label = rcube_label('today');
+    // replcae $ character with "Today" label (#1486120)
+    if (strpos($out, '$') !== false) {
+      $out = preg_replace('/\$/', $label, $out, 1);
+    }
+    else {
+      $out = $label . ' ' . $out;
+    }
+  }
+
+  return $out;
+}
 
 
 /**
@@ -1071,167 +1121,13 @@
  * @return string Formatted string
  */
 function format_email_recipient($email, $name='')
-  {
-  if ($name && $name != $email)
-    {
+{
+  if ($name && $name != $email) {
     // Special chars as defined by RFC 822 need to in quoted string (or escaped).
     return sprintf('%s <%s>', preg_match('/[\(\)\<\>\\\.\[\]@,;:"]/', $name) ? '"'.addcslashes($name, '"').'"' : $name, trim($email));
-    }
-  else
-    return trim($email);
   }
 
-
-
-/****** debugging functions ********/
-
-
-/**
- * Print or write debug messages
- *
- * @param mixed Debug message or data
- * @return void
- */
-function console()
-  {
-  $args = func_get_args();
-
-  if (class_exists('rcmail', false)) {
-    $rcmail = rcmail::get_instance();
-    if (is_object($rcmail->plugins))
-      $rcmail->plugins->exec_hook('console', $args);
-  }
-
-  $msg = array();
-  foreach ($args as $arg)
-    $msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
-
-  if (!($GLOBALS['CONFIG']['debug_level'] & 4))
-    write_log('console', join(";\n", $msg));
-  else if ($GLOBALS['OUTPUT']->ajax_call)
-    print "/*\n " . join(";\n", $msg) . " \n*/\n";
-  else
-    {
-    print '<div style="background:#eee; border:1px solid #ccc; margin-bottom:3px; padding:6px"><pre>';
-    print join(";<br/>\n", $msg);
-    print "</pre></div>\n";
-    }
-  }
-
-
-/**
- * Append a line to a logfile in the logs directory.
- * Date will be added automatically to the line.
- *
- * @param $name name of log file
- * @param line Line to append
- * @return void
- */
-function write_log($name, $line)
-  {
-  global $CONFIG, $RCMAIL;
-
-  if (!is_string($line))
-    $line = var_export($line, true);
- 
-  if (empty($CONFIG['log_date_format']))
-    $CONFIG['log_date_format'] = 'd-M-Y H:i:s O';
-  
-  $date = date($CONFIG['log_date_format']);
-  
-  // trigger logging hook
-  if (is_object($RCMAIL) && is_object($RCMAIL->plugins)) {
-    $log = $RCMAIL->plugins->exec_hook('write_log', array('name' => $name, 'date' => $date, 'line' => $line));
-    $name = $log['name'];
-    $line = $log['line'];
-    $date = $log['date'];
-    if ($log['abort'])
-      return true;
-  }
- 
-  if ($CONFIG['log_driver'] == 'syslog') {
-    $prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
-    syslog($prio, $line);
-    return true;
-  }
-  else {
-    $line = sprintf("[%s]: %s\n", $date, $line);
-
-    // log_driver == 'file' is assumed here
-    if (empty($CONFIG['log_dir']))
-      $CONFIG['log_dir'] = INSTALL_PATH.'logs';
-
-    // try to open specific log file for writing
-    $logfile = $CONFIG['log_dir'].'/'.$name;
-    if ($fp = @fopen($logfile, 'a')) {
-      fwrite($fp, $line);
-      fflush($fp);
-      fclose($fp);
-      return true;
-    }
-    else
-      trigger_error("Error writing to log file $logfile; Please check permissions", E_USER_WARNING);
-  }
-  return false;
-}
-
-
-/**
- * Write login data (name, ID, IP address) to the 'userlogins' log file.
- *
- * @return void
- */
-function rcmail_log_login()
-{
-  global $RCMAIL;
-
-  if (!$RCMAIL->config->get('log_logins') || !$RCMAIL->user)
-    return;
-
-  $address = $_SERVER['REMOTE_ADDR'];
-  // append the NGINX X-Real-IP header, if set
-  if (!empty($_SERVER['HTTP_X_REAL_IP'])) {
-    $remote_ip[] = 'X-Real-IP: ' . $_SERVER['HTTP_X_REAL_IP'];
-  }
-  // append the X-Forwarded-For header, if set
-  if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
-    $remote_ip[] = 'X-Forwarded-For: ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
-  }
-
-  if (!empty($remote_ip))
-    $address .= '(' . implode(',', $remote_ip) . ')';
-
-  write_log('userlogins', sprintf('Successful login for %s (ID: %d) from %s',
-    $RCMAIL->user->get_username(), $RCMAIL->user->ID, $address));
-}
-
-
-/**
- * @access private
- * @return mixed
- */
-function rcube_timer()
-{
-  return microtime(true);
-}
-  
-
-/**
- * @access private
- * @return void
- */
-function rcube_print_time($timer, $label='Timer', $dest='console')
-{
-  static $print_count = 0;
-  
-  $print_count++;
-  $now = rcube_timer();
-  $diff = $now-$timer;
-  
-  if (empty($label))
-    $label = 'Timer '.$print_count;
-  
-  write_log($dest, sprintf("%s: %0.4f sec", $label, $diff));
+  return trim($email);
 }
 
 
@@ -1245,25 +1141,28 @@
 {
   global $RCMAIL;
   static $a_mailboxes;
-  
+
   $attrib += array('maxlength' => 100, 'realnames' => false);
 
   // add some labels to client
   $RCMAIL->output->add_label('purgefolderconfirm', 'deletemessagesconfirm');
-  
+
   $type = $attrib['type'] ? $attrib['type'] : 'ul';
   unset($attrib['type']);
 
   if ($type=='ul' && !$attrib['id'])
     $attrib['id'] = 'rcmboxlist';
 
+  if (empty($attrib['folder_name']))
+    $attrib['folder_name'] = '*';
+
   // get mailbox list
   $mbox_name = $RCMAIL->imap->get_mailbox_name();
-  
+
   // build the folders tree
   if (empty($a_mailboxes)) {
     // get mailbox list
-    $a_folders = $RCMAIL->imap->list_mailboxes();
+    $a_folders = $RCMAIL->imap->list_mailboxes('', $attrib['folder_name'], $attrib['folder_filter']);
     $delimiter = $RCMAIL->imap->get_hierarchy_delimiter();
     $a_mailboxes = array();
 
@@ -1274,23 +1173,23 @@
   // allow plugins to alter the folder tree or to localize folder names
   $hook = $RCMAIL->plugins->exec_hook('render_mailboxlist', array('list' => $a_mailboxes, 'delimiter' => $delimiter));
 
-  if ($type=='select') {
+  if ($type == 'select') {
     $select = new html_select($attrib);
-    
+
     // add no-selection option
     if ($attrib['noselection'])
-      $select->add(rcube_label($attrib['noselection']), '0');
-    
+      $select->add(rcube_label($attrib['noselection']), '');
+
     rcmail_render_folder_tree_select($hook['list'], $mbox_name, $attrib['maxlength'], $select, $attrib['realnames']);
     $out = $select->show();
   }
   else {
     $js_mailboxlist = array();
     $out = html::tag('ul', $attrib, rcmail_render_folder_tree_html($hook['list'], $mbox_name, $js_mailboxlist, $attrib), html::$common_attrib);
-    
+
     $RCMAIL->output->add_gui_object('mailboxlist', $attrib['id']);
     $RCMAIL->output->set_env('mailboxes', $js_mailboxlist);
-    $RCMAIL->output->set_env('collapsed_folders', $RCMAIL->config->get('collapsed_folders'));
+    $RCMAIL->output->set_env('collapsed_folders', (string)$RCMAIL->config->get('collapsed_folders'));
   }
 
   return $out;
@@ -1306,21 +1205,32 @@
 function rcmail_mailbox_select($p = array())
 {
   global $RCMAIL;
-  
+
   $p += array('maxlength' => 100, 'realnames' => false);
   $a_mailboxes = array();
-  
-  foreach ($RCMAIL->imap->list_mailboxes() as $folder)
+
+  if (empty($p['folder_name']))
+    $p['folder_name'] = '*';
+
+  if ($p['unsubscribed'])
+    $list = $RCMAIL->imap->list_unsubscribed('', $p['folder_name'], $p['folder_filter']);
+  else
+    $list = $RCMAIL->imap->list_mailboxes('', $p['folder_name'], $p['folder_filter']);
+
+  $delimiter = $RCMAIL->imap->get_hierarchy_delimiter();
+
+  foreach ($list as $folder) {
     if (empty($p['exceptions']) || !in_array($folder, $p['exceptions']))
-      rcmail_build_folder_tree($a_mailboxes, $folder, $RCMAIL->imap->get_hierarchy_delimiter());
+      rcmail_build_folder_tree($a_mailboxes, $folder, $delimiter);
+  }
 
   $select = new html_select($p);
-  
+
   if ($p['noselection'])
     $select->add($p['noselection'], '');
-    
-  rcmail_render_folder_tree_select($a_mailboxes, $mbox, $p['maxlength'], $select, $p['realnames']);
-  
+
+  rcmail_render_folder_tree_select($a_mailboxes, $mbox, $p['maxlength'], $select, $p['realnames'], 0, $p['exceptions']);
+
   return $select;
 }
 
@@ -1334,6 +1244,17 @@
 {
   global $RCMAIL;
 
+  // Handle namespace prefix
+  $prefix = '';
+  if (!$path) {
+    $n_folder = $folder;
+    $folder = $RCMAIL->imap->mod_mailbox($folder);
+
+    if ($n_folder != $folder) {
+      $prefix = substr($n_folder, 0, -strlen($folder));
+    }
+  }
+
   $pos = strpos($folder, $delm);
 
   if ($pos !== false) {
@@ -1341,7 +1262,7 @@
     $currentFolder = substr($folder, 0, $pos);
 
     // sometimes folder has a delimiter as the last character
-    if (empty($subFolders))
+    if (!strlen($subFolders))
       $virtual = false;
     else if (!isset($arrFolders[$currentFolder]))
       $virtual = true;
@@ -1354,15 +1275,14 @@
     $virtual = false;
   }
 
-  $path .= $currentFolder;
-
-  // Check \Noselect option
-  if (!$virtual) {
-    $opts = $RCMAIL->imap->mailbox_options($path);
-    $virtual = in_array('\\Noselect', $opts);
-  }
+  $path .= $prefix.$currentFolder;
 
   if (!isset($arrFolders[$currentFolder])) {
+    // Check \Noselect option (if options are in cache)
+    if (!$virtual && ($opts = $RCMAIL->imap->mailbox_options($path))) {
+      $virtual = in_array('\\Noselect', $opts);
+    }
+
     $arrFolders[$currentFolder] = array(
       'id' => $path,
       'name' => rcube_charset_convert($currentFolder, 'UTF7-IMAP'),
@@ -1372,10 +1292,10 @@
   else
     $arrFolders[$currentFolder]['virtual'] = $virtual;
 
-  if (!empty($subFolders))
+  if (strlen($subFolders))
     rcmail_build_folder_tree($arrFolders[$currentFolder]['folders'], $subFolders, $delm, $path.$delm);
 }
-  
+
 
 /**
  * Return html for a structured list &lt;ul&gt; for the mailbox tree
@@ -1385,7 +1305,7 @@
 function rcmail_render_folder_tree_html(&$arrFolders, &$mbox_name, &$jslist, $attrib, $nestLevel=0)
 {
   global $RCMAIL, $CONFIG;
-  
+
   $maxlength = intval($attrib['maxlength']);
   $realnames = (bool)$attrib['realnames'];
   $msgcounts = $RCMAIL->imap->get_cache('messagecount');
@@ -1412,41 +1332,42 @@
     }
 
     // make folder name safe for ids and class names
-    $folder_id = asciiwords($folder['id'], true, '_');
+    $folder_id = html_identifier($folder['id']);
     $classes = array('mailbox');
 
     // set special class for Sent, Drafts, Trash and Junk
-    if ($folder['id']==$CONFIG['sent_mbox'])
+    if ($folder['id'] == $CONFIG['sent_mbox'])
       $classes[] = 'sent';
-    else if ($folder['id']==$CONFIG['drafts_mbox'])
+    else if ($folder['id'] == $CONFIG['drafts_mbox'])
       $classes[] = 'drafts';
-    else if ($folder['id']==$CONFIG['trash_mbox'])
+    else if ($folder['id'] == $CONFIG['trash_mbox'])
       $classes[] = 'trash';
-    else if ($folder['id']==$CONFIG['junk_mbox'])
+    else if ($folder['id'] == $CONFIG['junk_mbox'])
       $classes[] = 'junk';
-    else if ($folder['id']=='INBOX')
+    else if ($folder['id'] == 'INBOX')
       $classes[] = 'inbox';
     else
       $classes[] = '_'.asciiwords($folder_class ? $folder_class : strtolower($folder['id']), true);
-      
+
     $classes[] = $zebra_class;
-    
+
     if ($folder['id'] == $mbox_name)
       $classes[] = 'selected';
 
-    $collapsed = preg_match('/&'.rawurlencode($folder['id']).'&/', $RCMAIL->config->get('collapsed_folders'));
+    $collapsed = strpos($CONFIG['collapsed_folders'], '&'.rawurlencode($folder['id']).'&') !== false;
     $unread = $msgcounts ? intval($msgcounts[$folder['id']]['UNSEEN']) : 0;
-    
+
     if ($folder['virtual'])
       $classes[] = 'virtual';
     else if ($unread)
       $classes[] = 'unread';
 
     $js_name = JQ($folder['id']);
-    $html_name = Q($foldername . ($unread ? " ($unread)" : ''));
+    $html_name = Q($foldername) . ($unread ? html::span('unreadcount', " ($unread)") : '');
     $link_attrib = $folder['virtual'] ? array() : array(
       'href' => rcmail_url('', array('_mbox' => $folder['id'])),
       'onclick' => sprintf("return %s.command('list','%s',this)", JS_OBJECT_NAME, $js_name),
+      'rel' => $folder['id'],
       'title' => $title,
     );
 
@@ -1460,9 +1381,9 @@
         'style' => "position:absolute",
         'onclick' => sprintf("%s.command('collapse-folder', '%s')", JS_OBJECT_NAME, $js_name)
       ), '&nbsp;') : ''));
-    
+
     $jslist[$folder_id] = array('id' => $folder['id'], 'name' => $foldername, 'virtual' => $folder['virtual']);
-    
+
     if (!empty($folder['folders'])) {
       $out .= html::tag('ul', array('style' => ($collapsed ? "display:none;" : null)),
         rcmail_render_folder_tree_html($folder['folders'], $mbox_name, $jslist, $attrib, $nestLevel+1));
@@ -1481,33 +1402,34 @@
  * @access private
  * @return string
  */
-function rcmail_render_folder_tree_select(&$arrFolders, &$mbox_name, $maxlength, &$select, $realnames=false, $nestLevel=0)
-  {
-  $idx = 0;
+function rcmail_render_folder_tree_select(&$arrFolders, &$mbox_name, $maxlength, &$select, $realnames=false, $nestLevel=0, $exceptions=array())
+{
   $out = '';
-  foreach ($arrFolders as $key=>$folder)
-    {
-    if (!$realnames && ($folder_class = rcmail_folder_classname($folder['id'])))
-      $foldername = rcube_label($folder_class);
-    else
-      {
-      $foldername = $folder['name'];
-      
-      // shorten the folder name to a given length
-      if ($maxlength && $maxlength>1)
-        $foldername = abbreviate_string($foldername, $maxlength);
+
+  foreach ($arrFolders as $key => $folder) {
+    if (empty($exceptions) || !in_array($folder['id'], $exceptions)) {
+      if (!$realnames && ($folder_class = rcmail_folder_classname($folder['id'])))
+        $foldername = rcube_label($folder_class);
+      else {
+        $foldername = $folder['name'];
+
+        // shorten the folder name to a given length
+        if ($maxlength && $maxlength>1)
+          $foldername = abbreviate_string($foldername, $maxlength);
       }
 
-    $select->add(str_repeat('&nbsp;', $nestLevel*4) . $foldername, $folder['id']);
+      $select->add(str_repeat('&nbsp;', $nestLevel*4) . $foldername, $folder['id']);
+    }
+    else if ($nestLevel)
+      continue;
 
     if (!empty($folder['folders']))
-      $out .= rcmail_render_folder_tree_select($folder['folders'], $mbox_name, $maxlength, $select, $realnames, $nestLevel+1);
-
-    $idx++;
-    }
+      $out .= rcmail_render_folder_tree_select($folder['folders'], $mbox_name, $maxlength,
+        $select, $realnames, $nestLevel+1, $exceptions);
+  }
 
   return $out;
-  }
+}
 
 
 /**
@@ -1547,6 +1469,121 @@
 }
 
 
+function rcmail_localize_folderpath($path)
+{
+    global $RCMAIL;
+
+    $protect_folders = $RCMAIL->config->get('protect_default_folders');
+    $default_folders = (array) $RCMAIL->config->get('default_imap_folders');
+    $delimiter       = $RCMAIL->imap->get_hierarchy_delimiter();
+    $path            = explode($delimiter, $path);
+    $result          = array();
+
+    foreach ($path as $idx => $dir) {
+        $directory = implode($delimiter, array_slice($path, 0, $idx+1));
+        if ($protect_folders && in_array($directory, $default_folders)) {
+            unset($result);
+            $result[] = rcmail_localize_foldername($directory);
+        }
+        else {
+            $result[] = rcube_charset_convert($dir, 'UTF7-IMAP');
+        }
+    }
+
+    return implode($delimiter, $result);
+}
+
+
+function rcmail_quota_display($attrib)
+{
+  global $OUTPUT;
+
+  if (!$attrib['id'])
+    $attrib['id'] = 'rcmquotadisplay';
+
+  if(isset($attrib['display']))
+    $_SESSION['quota_display'] = $attrib['display'];
+
+  $OUTPUT->add_gui_object('quotadisplay', $attrib['id']);
+
+  $quota = rcmail_quota_content($attrib);
+
+  $OUTPUT->add_script('rcmail.set_quota('.json_serialize($quota).');', 'docready');
+
+  return html::span($attrib, '');
+}
+
+
+function rcmail_quota_content($attrib=NULL)
+{
+  global $RCMAIL;
+
+  $quota = $RCMAIL->imap->get_quota();
+  $quota = $RCMAIL->plugins->exec_hook('quota', $quota);
+
+  $quota_result = (array) $quota;
+  $quota_result['type'] = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';
+
+  if (!$quota['total'] && $RCMAIL->config->get('quota_zero_as_unlimited')) {
+    $quota_result['title'] = rcube_label('unlimited');
+    $quota_result['percent'] = 0;
+  }
+  else if ($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 $quota_result;
+}
+
+
+/**
+ * Outputs error message according to server error/response codes
+ *
+ * @param string Fallback message label
+ * @param string Fallback message label arguments
+ *
+ * @return void
+ */
+function rcmail_display_server_error($fallback=null, $fallback_args=null)
+{
+    global $RCMAIL;
+
+    $err_code = $RCMAIL->imap->get_error_code();
+    $res_code = $RCMAIL->imap->get_response_code();
+
+    if ($res_code == rcube_imap::NOPERM) {
+        $RCMAIL->output->show_message('errornoperm', 'error');
+    }
+    else if ($res_code == rcube_imap::READONLY) {
+        $RCMAIL->output->show_message('errorreadonly', 'error');
+    }
+    else if ($err_code && ($err_str = $RCMAIL->imap->get_error_str())) {
+        $RCMAIL->output->show_message('servererrormsg', 'error', array('msg' => $err_str));
+    }
+    else if ($fallback) {
+        $RCMAIL->output->show_message($fallback, 'error', $fallback_args);
+    }
+
+    return true;
+}
+
+
 /**
  * Output HTML editor scripts
  *
@@ -1557,7 +1594,7 @@
 {
   global $RCMAIL, $CONFIG;
 
-  $hook = $RCMAIL->plugins->exec_hook('hmtl_editor', array('mode' => $mode));
+  $hook = $RCMAIL->plugins->exec_hook('html_editor', array('mode' => $mode));
 
   if ($hook['abort'])
     return;  
@@ -1572,8 +1609,238 @@
 
   $RCMAIL->output->include_script('tiny_mce/tiny_mce.js');
   $RCMAIL->output->include_script('editor.js');
-  $RCMAIL->output->add_script('rcmail_editor_init("$__skin_path",
-    "'.JQ($lang).'", '.intval($CONFIG['enable_spellcheck']).', "'.$mode.'");');
+  $RCMAIL->output->add_script(sprintf("rcmail_editor_init('\$__skin_path', '%s', %d, '%s');",
+    JQ($lang), intval($CONFIG['enable_spellcheck']), $mode),
+    'foot');
+}
+
+
+/**
+ * Replaces TinyMCE's emoticon images with plain-text representation
+ *
+ * @param string HTML content
+ * @return string HTML content
+ */
+function rcmail_replace_emoticons($html)
+{
+  $emoticons = array(
+    '8-)' => 'smiley-cool',
+    ':-#' => 'smiley-foot-in-mouth',
+    ':-*' => 'smiley-kiss',
+    ':-X' => 'smiley-sealed',
+    ':-P' => 'smiley-tongue-out',
+    ':-@' => 'smiley-yell',
+    ":'(" => 'smiley-cry',
+    ':-(' => 'smiley-frown',
+    ':-D' => 'smiley-laughing',
+    ':-)' => 'smiley-smile',
+    ':-S' => 'smiley-undecided',
+    ':-$' => 'smiley-embarassed',
+    'O:-)' => 'smiley-innocent',
+    ':-|' => 'smiley-money-mouth',
+    ':-O' => 'smiley-surprised',
+    ';-)' => 'smiley-wink',
+  );
+
+  foreach ($emoticons as $idx => $file) {
+    // <img title="Cry" src="http://.../program/js/tiny_mce/plugins/emotions/img/smiley-cry.gif" border="0" alt="Cry" />
+    $search[]  = '/<img title="[a-z ]+" src="https?:\/\/[a-z0-9_.\/-]+\/tiny_mce\/plugins\/emotions\/img\/'.$file.'.gif"[^>]+\/>/i';
+    $replace[] = $idx;
+  }
+
+  return preg_replace($search, $replace, $html);
+}
+
+
+/**
+ * Send the given message using the configured method
+ *
+ * @param object $message    Reference to Mail_MIME object
+ * @param string $from       Sender address string
+ * @param array  $mailto     Array of recipient address strings
+ * @param array  $smtp_error SMTP error array (reference)
+ * @param string $body_file  Location of file with saved message body (reference)
+ * @param array  $smtp_opts  SMTP options (e.g. DSN request)
+ *
+ * @return boolean Send status.
+ */
+function rcmail_deliver_message(&$message, $from, $mailto, &$smtp_error, &$body_file, $smtp_opts=null)
+{
+  global $CONFIG, $RCMAIL;
+
+  $headers = $message->headers();
+
+  // send thru SMTP server using custom SMTP library
+  if ($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']);
+    // here too, it because txtHeaders() below use $message->_headers not only $send_headers
+    unset($message->_headers['Bcc']);
+
+    $smtp_headers = $message->txtHeaders($send_headers, true);
+
+    if ($message->getParam('delay_file_io')) {
+      // use common temp dir
+      $temp_dir = $RCMAIL->config->get('temp_dir');
+      $body_file = tempnam($temp_dir, 'rcmMsg');
+      if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
+        raise_error(array('code' => 650, 'type' => 'php',
+            'file' => __FILE__, 'line' => __LINE__,
+            'message' => "Could not create message: ".$mime_result->getMessage()),
+            TRUE, FALSE);
+        return false;
+      }
+      $msg_body = fopen($body_file, 'r');
+    } else {
+      $msg_body = $message->get();
+    }
+
+    // send message
+    if (!is_object($RCMAIL->smtp))
+      $RCMAIL->smtp_init(true);
+
+    $sent = $RCMAIL->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $smtp_opts);
+    $smtp_response = $RCMAIL->smtp->get_response();
+    $smtp_error = $RCMAIL->smtp->get_error();
+
+    // log error
+    if (!$sent)
+      raise_error(array('code' => 800, 'type' => 'smtp', 'line' => __LINE__, 'file' => __FILE__,
+                        'message' => "SMTP error: ".join("\n", $smtp_response)), TRUE, FALSE);
+  }
+  // send mail using PHP's mail() function
+  else {
+    // unset some headers because they will be added by the mail() function
+    $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))
+      raise_error(array('code' => 650, 'type' => 'php',
+            'file' => __FILE__, 'line' => __LINE__,
+            'message' => "Could not create message: ".$msg_body->getMessage()),
+            TRUE, FALSE);
+    else {
+      $delim   = $RCMAIL->config->header_delimiter();
+      $to      = $headers_enc['To'];
+      $subject = $headers_enc['Subject'];
+      $header_str = rtrim($header_str);
+
+      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(),
+        $_SERVER['REMOTE_ADDR'],
+        $mailto,
+        !empty($smtp_response) ? join('; ', $smtp_response) : ''));
+    }
+  }
+
+  if (is_resource($msg_body)) {
+    fclose($msg_body);
+  }
+
+  $message->_headers = array();
+  $message->headers($headers);
+
+  return $sent;
+}
+
+
+// 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;
 }
 
 
@@ -1616,25 +1883,31 @@
 }
 
 
-
 /**
  * Replaces hostname variables
  *
  * @param string $name Hostname
+ * @param string $host Optional IMAP hostname
  * @return string
  */
-function rcube_parse_host($name)
+function rcube_parse_host($name, $host='')
 {
   // %n - host
   $n = preg_replace('/:\d+$/', '', $_SERVER['SERVER_NAME']);
-  // %d - domain name without first part, e.g. %d=mail.domain.tld, %m=domain.tld
+  // %d - domain name without first part, e.g. %n=mail.domain.tld, %d=domain.tld
   $d = preg_replace('/^[^\.]+\./', '', $n);
   // %h - IMAP host
-  $h = $_SESSION['imap_host'];
+  $h = $_SESSION['imap_host'] ? $_SESSION['imap_host'] : $host;
   // %z - IMAP domain without first part, e.g. %h=imap.domain.tld, %z=domain.tld
   $z = preg_replace('/^[^\.]+\./', '', $h);
+  // %s - domain name after the '@' from e-mail address provided at login screen. Returns FALSE if an invalid email is provided
+  if ( strpos($name, '%s') !== false ){
+    $user_email = rcube_idn_convert(get_input_value('_user', RCUBE_INPUT_POST), true);
+    if ( preg_match('/(.*)@([a-z0-9\.\-\[\]\:]+)/i', $user_email, $s) < 1 || filter_var($s[1]."@".$s[2], FILTER_VALIDATE_EMAIL) === false )
+      return false;
+  }
 
-  $name = str_replace(array('%n', '%d', '%h', '%z'), array($n, $d, $h, $z), $name);
+  $name = str_replace(array('%n', '%d', '%h', '%z', '%s'), array($n, $d, $h, $z, $s[2]), $name);
   return $name;
 }
 
@@ -1712,6 +1985,43 @@
   return false;
 }
 
+/*
+ * Idn_to_ascii wrapper.
+ * Intl/Idn modules version of this function doesn't work with e-mail address
+ */
+function rcube_idn_to_ascii($str)
+{
+  return rcube_idn_convert($str, true);
+}
+
+/*
+ * Idn_to_ascii wrapper.
+ * Intl/Idn modules version of this function doesn't work with e-mail address
+ */
+function rcube_idn_to_utf8($str)
+{
+  return rcube_idn_convert($str, false);
+}
+
+function rcube_idn_convert($input, $is_utf=false)
+{
+  if ($at = strpos($input, '@')) {
+    $user   = substr($input, 0, $at);
+    $domain = substr($input, $at+1);
+  }
+  else {
+    $domain = $input;
+  }
+
+  $domain = $is_utf ? idn_to_ascii($domain) : idn_to_utf8($domain);
+
+  if ($domain === false) {
+    return '';
+  }
+
+  return $at ? $user . '@' . $domain : $domain;
+}
+
 
 /**
  * Helper class to turn relative urls into absolute ones
@@ -1730,6 +2040,178 @@
   {
     return $matches[1] . '="' . make_absolute_url($matches[3], $this->base_url) . '"';
   }
+}
+
+
+/****** debugging and logging functions ********/
+
+/**
+ * Print or write debug messages
+ *
+ * @param mixed Debug message or data
+ * @return void
+ */
+function console()
+{
+    $args = func_get_args();
+
+    if (class_exists('rcmail', false)) {
+        $rcmail = rcmail::get_instance();
+        if (is_object($rcmail->plugins)) {
+            $plugin = $rcmail->plugins->exec_hook('console', array('args' => $args));
+            if ($plugin['abort'])
+                return;
+            $args = $plugin['args'];
+        }
+    }
+
+    $msg = array();
+    foreach ($args as $arg)
+        $msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
+
+    write_log('console', join(";\n", $msg));
+}
+
+
+/**
+ * Append a line to a logfile in the logs directory.
+ * Date will be added automatically to the line.
+ *
+ * @param $name name of log file
+ * @param line Line to append
+ * @return void
+ */
+function write_log($name, $line)
+{
+  global $CONFIG, $RCMAIL;
+
+  if (!is_string($line))
+    $line = var_export($line, true);
+ 
+  if (empty($CONFIG['log_date_format']))
+    $CONFIG['log_date_format'] = 'd-M-Y H:i:s O';
+  
+  $date = date($CONFIG['log_date_format']);
+  
+  // trigger logging hook
+  if (is_object($RCMAIL) && is_object($RCMAIL->plugins)) {
+    $log = $RCMAIL->plugins->exec_hook('write_log', array('name' => $name, 'date' => $date, 'line' => $line));
+    $name = $log['name'];
+    $line = $log['line'];
+    $date = $log['date'];
+    if ($log['abort'])
+      return true;
+  }
+ 
+  if ($CONFIG['log_driver'] == 'syslog') {
+    $prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
+    syslog($prio, $line);
+    return true;
+  }
+  else {
+    $line = sprintf("[%s]: %s\n", $date, $line);
+
+    // log_driver == 'file' is assumed here
+    if (empty($CONFIG['log_dir']))
+      $CONFIG['log_dir'] = INSTALL_PATH.'logs';
+
+    // try to open specific log file for writing
+    $logfile = $CONFIG['log_dir'].'/'.$name;
+    if ($fp = @fopen($logfile, 'a')) {
+      fwrite($fp, $line);
+      fflush($fp);
+      fclose($fp);
+      return true;
+    }
+    else
+      trigger_error("Error writing to log file $logfile; Please check permissions", E_USER_WARNING);
+  }
+
+  return false;
+}
+
+
+/**
+ * Write login data (name, ID, IP address) to the 'userlogins' log file.
+ *
+ * @return void
+ */
+function rcmail_log_login()
+{
+  global $RCMAIL;
+
+  if (!$RCMAIL->config->get('log_logins') || !$RCMAIL->user)
+    return;
+
+  write_log('userlogins', sprintf('Successful login for %s (ID: %d) from %s',
+    $RCMAIL->user->get_username(), $RCMAIL->user->ID, rcmail_remote_ip()));
+}
+
+
+/**
+ * Returns remote IP address and forwarded addresses if found
+ *
+ * @return string Remote IP address(es)
+ */
+function rcmail_remote_ip()
+{
+    $address = $_SERVER['REMOTE_ADDR'];
+
+    // append the NGINX X-Real-IP header, if set
+    if (!empty($_SERVER['HTTP_X_REAL_IP'])) {
+        $remote_ip[] = 'X-Real-IP: ' . $_SERVER['HTTP_X_REAL_IP'];
+    }
+    // append the X-Forwarded-For header, if set
+    if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+        $remote_ip[] = 'X-Forwarded-For: ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
+    }
+
+    if (!empty($remote_ip))
+        $address .= '(' . implode(',', $remote_ip) . ')';
+
+    return $address;
+}
+
+
+/**
+ * Check whether the HTTP referer matches the current request
+ *
+ * @return boolean True if referer is the same host+path, false if not
+ */
+function rcube_check_referer()
+{
+  $uri = parse_url($_SERVER['REQUEST_URI']);
+  $referer = parse_url(rc_request_header('Referer'));
+  return $referer['host'] == rc_request_header('Host') && $referer['path'] == $uri['path'];
+}
+
+
+/**
+ * @access private
+ * @return mixed
+ */
+function rcube_timer()
+{
+  return microtime(true);
+}
+
+
+/**
+ * @access private
+ * @return void
+ */
+function rcube_print_time($timer, $label='Timer', $dest='console')
+{
+  static $print_count = 0;
+
+  $print_count++;
+  $now = rcube_timer();
+  $diff = $now-$timer;
+
+  if (empty($label))
+    $label = 'Timer '.$print_count;
+
+  write_log($dest, sprintf("%s: %0.4f sec", $label, $diff));
 }
 
 
@@ -1753,13 +2235,13 @@
 
     // report bug (if not incompatible browser)
     if ($log && $arg['type'] && $arg['message'])
-        log_bug($arg);
+        rcube_log_bug($arg);
 
     // display error page and terminate script
     if ($terminate) {
         $ERROR_CODE = $arg['code'];
         $ERROR_MESSAGE = $arg['message'];
-        include('program/steps/utils/error.inc');
+        include INSTALL_PATH . 'program/steps/utils/error.inc';
         exit;
     }
 }
@@ -1773,13 +2255,20 @@
  * @return void
  * @see raise_error()
  */
-function log_bug($arg_arr)
+function rcube_log_bug($arg_arr)
 {
     global $CONFIG;
+
     $program = strtoupper($arg_arr['type']);
+    $level   = $CONFIG['debug_level'];
+
+    // disable errors for ajax requests, write to log instead (#1487831)
+    if (($level & 4) && !empty($_REQUEST['_remote'])) {
+        $level = ($level ^ 4) | 1;
+    }
 
     // write error to local log file
-    if ($CONFIG['debug_level'] & 1) {
+    if ($level & 1) {
         $post_query = ($_SERVER['REQUEST_METHOD'] == 'POST' ? '?_task='.urlencode($_POST['_task']).'&_action='.urlencode($_POST['_action']) : '');
         $log_entry = sprintf("%s Error: %s%s (%s %s)",
             $program,
@@ -1794,13 +2283,13 @@
         }
     }
 
-    // resport the bug to the global bug reporting system
-    if ($CONFIG['debug_level'] & 2) {
+    // report the bug to the global bug reporting system
+    if ($level & 2) {
         // TODO: Send error via HTTP
     }
 
     // show error if debug_mode is on
-    if ($CONFIG['debug_level'] & 4) {
+    if ($level & 4) {
         print "<b>$program Error";
 
         if (!empty($arg_arr['file']) && !empty($arg_arr['line']))
@@ -1812,3 +2301,85 @@
         flush();
     }
 }
+
+function rcube_upload_progress()
+{
+    global $RCMAIL;
+
+    $prefix = ini_get('apc.rfc1867_prefix');
+    $params = array(
+        'action' => $RCMAIL->action,
+        'name' => get_input_value('_progress', RCUBE_INPUT_GET),
+    );
+
+    if (function_exists('apc_fetch')) {
+        $status = apc_fetch($prefix . $params['name']);
+
+        if (!empty($status)) {
+            $status['percent'] = round($status['current']/$status['total']*100);
+            $params = array_merge($status, $params);
+        }
+    }
+
+    if (isset($params['percent']))
+        $params['text'] = rcube_label(array('name' => 'uploadprogress', 'vars' => array(
+            'percent' => $params['percent'] . '%',
+            'current' => show_bytes($params['current']),
+            'total'   => show_bytes($params['total'])
+        )));
+
+    $RCMAIL->output->command('upload_progress_update', $params);
+    $RCMAIL->output->send();
+}
+
+function rcube_upload_init()
+{
+    global $RCMAIL;
+
+    // Enable upload progress bar
+    if (($seconds = $RCMAIL->config->get('upload_progress')) && ini_get('apc.rfc1867')) {
+        if ($field_name = ini_get('apc.rfc1867_name')) {
+            $RCMAIL->output->set_env('upload_progress_name', $field_name);
+            $RCMAIL->output->set_env('upload_progress_time', (int) $seconds);
+        }
+    }
+
+    // find max filesize value
+    $max_filesize = parse_bytes(ini_get('upload_max_filesize'));
+    $max_postsize = parse_bytes(ini_get('post_max_size'));
+    if ($max_postsize && $max_postsize < $max_filesize)
+        $max_filesize = $max_postsize;
+
+    $RCMAIL->output->set_env('max_filesize', $max_filesize);
+    $max_filesize = show_bytes($max_filesize);
+    $RCMAIL->output->set_env('filesizeerror', rcube_label(array(
+        'name' => 'filesizeerror', 'vars' => array('size' => $max_filesize))));
+
+    return $max_filesize;
+}
+
+/**
+ * Initializes client-side autocompletion
+ */
+function rcube_autocomplete_init()
+{
+    global $RCMAIL;
+    static $init;
+
+    if ($init)
+        return;
+
+    $init = 1;
+
+    if (($threads = (int)$RCMAIL->config->get('autocomplete_threads')) > 0) {
+      $book_types = (array) $RCMAIL->config->get('autocomplete_addressbooks', 'sql');
+      if (count($book_types) > 1) {
+        $RCMAIL->output->set_env('autocomplete_threads', $threads);
+        $RCMAIL->output->set_env('autocomplete_sources', $book_types);
+      }
+    }
+
+    $RCMAIL->output->set_env('autocomplete_max', (int)$RCMAIL->config->get('autocomplete_max', 15));
+    $RCMAIL->output->set_env('autocomplete_min_length', $RCMAIL->config->get('autocomplete_min_length'));
+    $RCMAIL->output->add_label('autocompletechars');
+}

--
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