3 files changed, 8 insertions, 7 deletions
diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
index 36638d25d..85c21f414 100644
--- a/program/include/rcube_imap_generic.php
+++ b/program/include/rcube_imap_generic.php
@@ -1207,8 +1207,8 @@ class rcube_imap_generic
     {
         if (is_array($items) && !empty($items)) {
             foreach ($items as $key => $value) {
-                $args[] = $this->escape($key);
-                $args[] = $this->escape($value);
+                $args[] = $this->escape($key, true);
+                $args[] = $this->escape($value, true);
             }
         }
 
@@ -1219,7 +1219,7 @@ class rcube_imap_generic
 
         if ($code == self::ERROR_OK && preg_match('/\* ID /i', $response)) {
             $response = substr($response, 5); // remove prefix "* ID "
-            $items    = $this->tokenizeResponse($response);
+            $items    = $this->tokenizeResponse($response, 1);
             $result   = null;
 
             for ($i=0, $len=count($items); $i<$len; $i += 2) {
diff --git a/program/include/rcube_shared.inc b/program/include/rcube_shared.inc
index afaa15d69..f1edcbf93 100644
--- a/program/include/rcube_shared.inc
+++ b/program/include/rcube_shared.inc
@@ -232,7 +232,7 @@ function make_absolute_url($path, $base_url)
   }
 
   // $path is absolute
-  if ($path{0}=='/')
+  if ($path[0] == '/')
     $abs_path = $host_url.$path;
   else
   {
@@ -244,13 +244,13 @@ function make_absolute_url($path, $base_url)
       {
         if (strrpos($base_url, '/'))
           $base_url = substr($base_url, 0, strrpos($base_url, '/'));
-        
+
         $path = substr($path, 3);
       }
 
     $abs_path = $base_url.'/'.$path;
   }
-    
+
   return $abs_path;
 }
 
diff --git a/program/include/rcube_string_replacer.php b/program/include/rcube_string_replacer.php
index 8fcbecaba..ec40156d2 100644
--- a/program/include/rcube_string_replacer.php
+++ b/program/include/rcube_string_replacer.php
@@ -36,7 +36,8 @@ class rcube_string_replacer
   function __construct()
   {
     // Simplified domain expression for UTF8 characters handling
-    $utf_domain = '[^?&@"\'\\/()\s\r\t\n]+\\.[a-z]{2,5}';
+    // Support unicode/punycode in top-level domain part
+    $utf_domain = '[^?&@"\'\\/()\s\r\t\n]+\\.([^\\x00-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-z0-9]{2,})';
     $url1 = '.:;';
     $url2 = 'a-z0-9%=#@+?&\\/_~\\[\\]-';