From b98e71900de9ea6c1e965e2a389b1a99166a944e Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 10 Jan 2012 16:42:06 -0500
Subject: [PATCH] Allow plugins to extend the vcard fieldmap for contact data

---
 program/include/rcmail.php |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index deaaabf..fbf691a 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -750,11 +750,15 @@
    * @param string IMAP user name
    * @param string IMAP password
    * @param string IMAP host
+   *
    * @return boolean True on success, False on failure
    */
   function login($username, $pass, $host=NULL)
   {
-    $user = NULL;
+    if (empty($username)) {
+      return false;
+    }
+
     $config = $this->config->all();
 
     if (!$host)

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