From 29983c16711b7eb6828afab8ca87a09eec9f6fe3 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Sat, 09 Oct 2010 12:46:53 -0400
Subject: [PATCH] - Add caching support in id2uid and uid2id functions (#1487019), Fix get_message_cache_index    to use internal cache when only sort order changes. Both changes improves performance of 'show' action - code cleanup/function description fixes

---
 program/include/rcmail.php |   18 +++++++++++-------
 1 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index 1b11ca3..b6af440 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -683,6 +683,16 @@
       if ($virtuser = rcube_user::email2user($username))
         $username = $virtuser;
 
+    // Here we need IDNA ASCII
+    // Only rcube_contacts class is using domain names in Unicode
+    $host = idn_to_ascii($host);
+    if (strpos($username, '@')) {
+      // lowercase domain name
+      list($local, $domain) = explode('@', $username);
+      $username = $local . '@' . mb_strtolower($domain);
+      $username = idn_to_ascii($username);
+    }
+
     // user already registered -> overwrite username
     if ($user = rcube_user::query($username, $host))
       $username = $user->data['username'];
@@ -690,15 +700,9 @@
     if (!$this->imap)
       $this->imap_init();
 
-    // Here we need IDNA ASCII
-    // Only rcube_contacts class is using domain names in Unicode
-    $host = idn_to_ascii($host);
-    if (strpos($username, '@'))
-      $username = idn_to_ascii($username);
-
     // try IMAP login
     if (!($imap_login = $this->imap->connect($host, $username, $pass, $imap_port, $imap_ssl))) {
-      // lowercase username if it's an e-mail address (#1484473)
+      // try with lowercase
       $username_lc = mb_strtolower($username);
       if ($username_lc != $username && ($imap_login = $this->imap->connect($host, $username_lc, $pass, $imap_port, $imap_ssl)))
         $username = $username_lc;

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