From 0b83edf439dd4d934eb779454f865df5e46fecf8 Mon Sep 17 00:00:00 2001
From: Lance Stout <lancestout@gmail.com>
Date: Thu, 22 Sep 2011 01:32:44 -0400
Subject: [PATCH] Fix regression for handling the case where the server
 terminates the stream.

The processing loop was continuing to call __read_xml after </stream>
was received, which caused SyntaxErrors (can't find starting element).

This should fix issue #102
---
 sleekxmpp/xmlstream/xmlstream.py | 70 ++++++++++++++++----------------
 1 file changed, 35 insertions(+), 35 deletions(-)

diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py
index 3936031..e047dbd 100644
--- a/sleekxmpp/xmlstream/xmlstream.py
+++ b/sleekxmpp/xmlstream/xmlstream.py
@@ -1084,7 +1084,12 @@ class XMLStream(object):
                     # new connections.
                     if not self.session_started_event.is_set():
                         self.send_raw(self.stream_header, now=True)
-                    self.__read_xml()
+                    if not self.__read_xml():
+                        # If the server terminated the stream, end processing
+                        break
+            except SyntaxError as e:
+                log.error("Error reading from XML stream.")
+                self.exception(e)
             except KeyboardInterrupt:
                 log.debug("Keyboard Escape Detected in _process")
                 self.stop.set()
@@ -1115,40 +1120,35 @@ class XMLStream(object):
         """
         depth = 0
         root = None
-        try:
-            for (event, xml) in ET.iterparse(self.filesocket,
-                                             (b'end', b'start')):
-                if event == b'start':
-                    if depth == 0:
-                        # We have received the start of the root element.
-                        root = xml
-                        # Perform any stream initialization actions, such
-                        # as handshakes.
-                        self.stream_end_event.clear()
-                        self.start_stream_handler(root)
-                    depth += 1
-                if event == b'end':
-                    depth -= 1
-                    if depth == 0:
-                        # The stream's root element has closed,
-                        # terminating the stream.
-                        log.debug("End of stream recieved")
-                        self.stream_end_event.set()
-                        return False
-                    elif depth == 1:
-                        # We only raise events for stanzas that are direct
-                        # children of the root element.
-                        try:
-                            self.__spawn_event(xml)
-                        except RestartStream:
-                            return True
-                        if root:
-                            # Keep the root element empty of children to
-                            # save on memory use.
-                            root.clear()
-        except SyntaxError:
-            log.error("Error reading from XML stream.")
-            self.disconnect(self.auto_reconnect)
+        for event, xml in ET.iterparse(self.filesocket, (b'end', b'start')):
+            if event == b'start':
+                if depth == 0:
+                    # We have received the start of the root element.
+                    root = xml
+                    # Perform any stream initialization actions, such
+                    # as handshakes.
+                    self.stream_end_event.clear()
+                    self.start_stream_handler(root)
+                depth += 1
+            if event == b'end':
+                depth -= 1
+                if depth == 0:
+                    # The stream's root element has closed,
+                    # terminating the stream.
+                    log.debug("End of stream recieved")
+                    self.stream_end_event.set()
+                    return False
+                elif depth == 1:
+                    # We only raise events for stanzas that are direct
+                    # children of the root element.
+                    try:
+                        self.__spawn_event(xml)
+                    except RestartStream:
+                        return True
+                    if root is not None:
+                        # Keep the root element empty of children to
+                        # save on memory use.
+                        root.clear()
         log.debug("Ending read XML loop")
 
     def _build_stanza(self, xml, default_ns=None):