diff options
| -rw-r--r-- | sleekxmpp/xmlstream/xmlstream.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py index 3175d92b..10f4a05f 100644 --- a/sleekxmpp/xmlstream/xmlstream.py +++ b/sleekxmpp/xmlstream/xmlstream.py @@ -212,6 +212,9 @@ class XMLStream(object): self.stream_header = "<stream>" self.stream_footer = "</stream>" + self.whitespace_keepalive = True + self.whitespace_keepalive_interval = 300 + self.stop = threading.Event() self.stream_end_event = threading.Event() self.stream_end_event.set() @@ -238,6 +241,8 @@ class XMLStream(object): self.dns_answers = [] self.add_event_handler('connected', self._handle_connected) + self.add_event_handler('session_start', self._start_keepalive) + self.add_event_handler('session_end', self._end_keepalive) def use_signals(self, signals=None): """ @@ -615,6 +620,30 @@ class XMLStream(object): log.warning("Tried to enable TLS, but ssl module not found.") return False + def _start_keepalive(self, event): + """ + Begin sending whitespace periodically to keep the connection alive. + + May be disabled by setting: + self.whitespace_keepalive = False + + The keepalive interval can be set using: + self.whitespace_keepalive_interval = 300 + """ + + def send_keepalive(): + if self.send_queue.empty(): + self.send_raw(' ') + + self.schedule('Whitespace Keepalive', + self.whitespace_keepalive_interval, + send_keepalive, + repeat=True) + + def _end_keepalive(self, event): + """Stop sending whitespace keepalives""" + self.scheduler.remove('Whitespace Keepalive') + def start_stream_handler(self, xml): """ Perform any initialization actions, such as handshakes, once the |