From c72325faed3d244170650a1bf62ddca6eb1b5fa9 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 17 Aug 2012 09:00:12 -0400
Subject: [PATCH] Fix bug where domain name was converted to lower-case even with login_lc=false (#1488593)

---
 program/include/rcmail.php |   21 ++++++++++++---------
 1 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index a6b0bcd..d866919 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -453,7 +453,14 @@
     // Convert username to lowercase. If storage backend
     // is case-insensitive we need to store always the same username (#1487113)
     if ($config['login_lc']) {
-      $username = mb_strtolower($username);
+      if ($config['login_lc'] == 2 || $config['login_lc'] === true) {
+        $username = mb_strtolower($username);
+      }
+      else if (strpos($username, '@')) {
+        // lowercase domain name
+        list($local, $domain) = explode('@', $username);
+        $username = $local . '@' . mb_strtolower($domain);
+      }
     }
 
     // try to resolve email address from virtuser table
@@ -463,17 +470,13 @@
 
     // Here we need IDNA ASCII
     // Only rcube_contacts class is using domain names in Unicode
-    $host = rcube_utils::idn_to_ascii($host);
-    if (strpos($username, '@')) {
-      // lowercase domain name
-      list($local, $domain) = explode('@', $username);
-      $username = $local . '@' . mb_strtolower($domain);
-      $username = rcube_utils::idn_to_ascii($username);
-    }
+    $host     = rcube_utils::idn_to_ascii($host);
+    $username = rcube_utils::idn_to_ascii($username);
 
     // user already registered -> overwrite username
-    if ($user = rcube_user::query($username, $host))
+    if ($user = rcube_user::query($username, $host)) {
       $username = $user->data['username'];
+    }
 
     $storage = $this->get_storage();
 

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