From 15ef27314189baeee64fbe41ab87f1eebef6e85c Mon Sep 17 00:00:00 2001
From: Lance Stout <lancestout@gmail.com>
Date: Sun, 8 Apr 2012 21:15:53 -0400
Subject: Add a prefix to stanza ID values to ensure that they are unique per
 client.

---
 sleekxmpp/test/sleektest.py      | 3 +++
 sleekxmpp/xmlstream/xmlstream.py | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/sleekxmpp/test/sleektest.py b/sleekxmpp/test/sleektest.py
index 364e5939..bc83472e 100644
--- a/sleekxmpp/test/sleektest.py
+++ b/sleekxmpp/test/sleektest.py
@@ -330,6 +330,9 @@ class SleekTest(unittest.TestCase):
         else:
             raise ValueError("Unknown XMPP connection mode.")
 
+        # Remove unique ID prefix to make it easier to test
+        self.xmpp._id_prefix = ''
+
         # We will use this to wait for the session_start event
         # for live connections.
         skip_queue = queue.Queue()
diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py
index 145383c1..808464f0 100644
--- a/sleekxmpp/xmlstream/xmlstream.py
+++ b/sleekxmpp/xmlstream/xmlstream.py
@@ -25,6 +25,7 @@ import threading
 import time
 import random
 import weakref
+import uuid
 try:
     import queue
 except ImportError:
@@ -285,6 +286,9 @@ class XMLStream(object):
         self._id = 0
         self._id_lock = threading.Lock()
 
+        #: We use an ID prefix to ensure that all ID values are unique.
+        self._id_prefix = '%s-' % uuid.uuid4()
+
         #: The :attr:`auto_reconnnect` setting controls whether or not
         #: the stream will be restarted in the event of an error.
         self.auto_reconnect = True
@@ -367,7 +371,7 @@ class XMLStream(object):
 
     def get_id(self):
         """Return the current unique stream ID in hexadecimal form."""
-        return "%X" % self._id
+        return "%s%X" % (self._id_prefix, self._id)
 
     def connect(self, host='', port=0, use_ssl=False,
                 use_tls=True, reattempt=True):
-- 
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