Fix being able to connect to a local daemon from another user account

ChangeLog

@@ -13,6 +13,7 @@ Deluge 1.1.1 - (In Development)
   * Fix the -l, --logfile option
   * Fix #729 tracker icons not being saved in the correct location
   * Add support for more tracker icons
+  * Fix being able to connect to a local daemon from another user account
 
 Deluge 1.1.0 - "Time gas!" (10 January 2009)
  Core:

deluge/ui/common.py

@@ -127,6 +127,12 @@ def get_localhost_auth_uri(uri):
     :param uri: the uri to add the authentication info to
     :returns: a localhost uri containing authentication information or None if the information is not available
     """
+    u = urlparse.urlsplit(uri)
+    # If there is already a username in this URI, let's just return it since
+    # the user has provided credentials.
+    if u.username:
+        return uri
+
     auth_file = deluge.configmanager.get_config_dir("auth")
     if os.path.exists(auth_file):
         u = urlparse.urlsplit(uri)