From 8f94b1aad656ec19c92b7ec7aa7f9e4cd4ac60a0 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Tue, 05 Oct 2010 06:17:12 -0400
Subject: [PATCH] - Convert to lowercase only domain part of email address on login

---
 program/include/rcube_string_replacer.php |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/program/include/rcube_string_replacer.php b/program/include/rcube_string_replacer.php
index 03c04dd..0471dd0 100644
--- a/program/include/rcube_string_replacer.php
+++ b/program/include/rcube_string_replacer.php
@@ -4,8 +4,8 @@
  +-----------------------------------------------------------------------+
  | program/include/rcube_string_replacer.php                             |
  |                                                                       |
- | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2009, RoundCube Dev. - Switzerland                      |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2009, Roundcube Dev. - Switzerland                      |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -35,11 +35,15 @@
 
   function __construct()
   {
-    $url_chars = 'a-z0-9_\-\+\*\$\/&%=@#:;';
-    $url_chars_within = '\?\.~,!';
+    // Simplified domain expression for UTF8 characters handling
+    $utf_domain = '[^&@"\'\\/\s\r\t\n]+\\.[a-z]{2,5}';
 
-    $this->link_pattern = "/([\w]+:\/\/|\Wwww\.)([a-z0-9\-\.]+[a-z]{2,4}([$url_chars$url_chars_within]*[$url_chars])?)/i";
-    $this->mailto_pattern = "/([a-z0-9][a-z0-9\-\.\+\_]*@([a-z0-9]([-a-z0-9]*[a-z0-9])?\\.)+[a-z]{2,5})/i";
+    $this->link_pattern = "/([\w]+:\/\/|\Wwww\.)($utf_domain(\S+)?)/i";
+    $this->mailto_pattern = "/("
+        ."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*"  // local-part
+        ."@$utf_domain"                                                 // domain-part
+        ."(\?\S+)?"                                                     // e.g. ?subject=test...
+        .")/i";
   }
 
   /**

--
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