def connectionLost(self, reason: Union[Failure, Exception]) -> None:
"""Called when the client connection is closed before the response is written.
Overrides twisted.web.server.Request.connectionLost to record the finish time and
do logging.
"""
# There is a bug in Twisted where reason is not wrapped in a Failure object
# Detect this and wrap it manually as a workaround
# More information: https://github.com/matrix-org/synapse/issues/7441
if not isinstance(reason, Failure):
reason = Failure(reason)
self.finish_time = time.time()
Request.connectionLost(self, reason)
if self.logcontext is None:
logger.info(
"Connection from %s lost before request headers were read",
self.client)
return
# we only get here if the connection to the client drops before we send
# the response.
#
# It's useful to log it here so that we can get an idea of when
# the client disconnects.
with PreserveLoggingContext(self.logcontext):
logger.info("Connection from client lost before response was sent")
if not self._is_processing:
self._finished_processing()
def connectionLost(self, reason: Union[Failure, Exception]) -> None:
"""Called when the client connection is closed before the response is written.
Overrides twisted.web.server.Request.connectionLost to record the finish time and
do logging.
"""
# There is a bug in Twisted where reason is not wrapped in a Failure object
# Detect this and wrap it manually as a workaround
# More information: https://github.com/matrix-org/synapse/issues/7441
if not isinstance(reason, Failure):
reason = Failure(reason)
self.finish_time = time.time()
Request.connectionLost(self, reason)
if self.logcontext is None:
logger.info(
"Connection from %s lost before request headers were read",
self.client)
return
# we only get here if the connection to the client drops before we send
# the response.
#
# It's useful to log it here so that we can get an idea of when
# the client disconnects.
with PreserveLoggingContext(self.logcontext):
logger.info("Connection from client lost before response was sent")
if self._opentracing_span:
self._opentracing_span.log_kv({
"event": "client connection lost",
"reason": str(reason.value)
})
if self._is_processing:
if self.is_render_cancellable:
if self.render_deferred is not None:
# Throw a cancellation into the request processing, in the hope
# that it will finish up sooner than it normally would.
# The `self.processing()` context manager will call
# `_finished_processing()` when done.
with PreserveLoggingContext():
self.render_deferred.cancel()
else:
logger.error(
"Connection from client lost, but have no Deferred to "
"cancel even though the request is marked as cancellable."
)
else:
self._finished_processing()
def connectionLost(self, reason):
"""Called when the client connection is closed before the response is written.
Overrides twisted.web.server.Request.connectionLost to record the finish time and
do logging.
"""
self.finish_time = time.time()
Request.connectionLost(self, reason)
# we only get here if the connection to the client drops before we send
# the response.
#
# It's useful to log it here so that we can get an idea of when
# the client disconnects.
with PreserveLoggingContext(self.logcontext):
logger.warning("Error processing request %r: %s %s", self,
reason.type, reason.value)
if not self._is_processing:
self._finished_processing()
def connectionLost(self, reason):
"""Called when the client connection is closed before the response is written.
Overrides twisted.web.server.Request.connectionLost to record the finish time and
do logging.
"""
self.finish_time = time.time()
Request.connectionLost(self, reason)
# we only get here if the connection to the client drops before we send
# the response.
#
# It's useful to log it here so that we can get an idea of when
# the client disconnects.
with PreserveLoggingContext(self.logcontext):
logger.warn(
"Error processing request %r: %s %s", self, reason.type, reason.value,
)
if not self._is_processing:
self._finished_processing()
