diff options
Diffstat (limited to 'synapse/http/client.py')
| -rw-r--r-- | synapse/http/client.py | 54 |
1 files changed, 33 insertions, 21 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py index 4694adc400..8324632cb6 100644 --- a/synapse/http/client.py +++ b/synapse/http/client.py @@ -13,7 +13,6 @@ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. - import logging import urllib from io import BytesIO @@ -38,7 +37,7 @@ from zope.interface import implementer, provider from OpenSSL import SSL from OpenSSL.SSL import VERIFY_NONE -from twisted.internet import defer, protocol, ssl +from twisted.internet import defer, error as twisted_error, protocol, ssl from twisted.internet.interfaces import ( IReactorPluggableNameResolver, IResolutionReceiver, @@ -46,17 +45,18 @@ from twisted.internet.interfaces import ( from twisted.internet.task import Cooperator from twisted.python.failure import Failure from twisted.web._newclient import ResponseDone -from twisted.web.client import Agent, HTTPConnectionPool, readBody +from twisted.web.client import ( + Agent, + HTTPConnectionPool, + ResponseNeverReceived, + readBody, +) from twisted.web.http import PotentialDataLoss from twisted.web.http_headers import Headers from twisted.web.iweb import IResponse from synapse.api.errors import Codes, HttpResponseException, SynapseError -from synapse.http import ( - QuieterFileBodyProducer, - cancelled_to_request_timed_out_error, - redact_uri, -) +from synapse.http import QuieterFileBodyProducer, RequestTimedOutError, redact_uri from synapse.http.proxyagent import ProxyAgent from synapse.logging.context import make_deferred_yieldable from synapse.logging.opentracing import set_tag, start_active_span, tags @@ -332,8 +332,6 @@ class SimpleHttpClient: RequestTimedOutError if the request times out before the headers are read """ - # A small wrapper around self.agent.request() so we can easily attach - # counters to it outgoing_requests_counter.labels(method).inc() # log request but strip `access_token` (AS requests for example include this) @@ -362,15 +360,17 @@ class SimpleHttpClient: data=body_producer, headers=headers, **self._extra_treq_args - ) + ) # type: defer.Deferred + # we use our own timeout mechanism rather than treq's as a workaround # for https://twistedmatrix.com/trac/ticket/9534. request_deferred = timeout_deferred( - request_deferred, - 60, - self.hs.get_reactor(), - cancelled_to_request_timed_out_error, + request_deferred, 60, self.hs.get_reactor(), ) + + # turn timeouts into RequestTimedOutErrors + request_deferred.addErrback(_timeout_to_request_timed_out_error) + response = await make_deferred_yieldable(request_deferred) incoming_responses_counter.labels(method, response.code).inc() @@ -410,7 +410,7 @@ class SimpleHttpClient: parsed json Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -461,7 +461,7 @@ class SimpleHttpClient: parsed json Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -506,7 +506,7 @@ class SimpleHttpClient: Returns: Succeeds when we get a 2xx HTTP response, with the HTTP body as JSON. Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -538,7 +538,7 @@ class SimpleHttpClient: Returns: Succeeds when we get a 2xx HTTP response, with the HTTP body as JSON. Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -586,7 +586,7 @@ class SimpleHttpClient: Succeeds when we get a 2xx HTTP response, with the HTTP body as bytes. Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -631,7 +631,7 @@ class SimpleHttpClient: headers, absolute URI of the response and HTTP response code. Raises: - RequestTimedOutException: if there is a timeout before the response headers + RequestTimedOutError: if there is a timeout before the response headers are received. Note there is currently no timeout on reading the response body. @@ -684,6 +684,18 @@ class SimpleHttpClient: ) +def _timeout_to_request_timed_out_error(f: Failure): + if f.check(twisted_error.TimeoutError, twisted_error.ConnectingCancelledError): + # The TCP connection has its own timeout (set by the 'connectTimeout' param + # on the Agent), which raises twisted_error.TimeoutError exception. + raise RequestTimedOutError("Timeout connecting to remote server") + elif f.check(defer.TimeoutError, ResponseNeverReceived): + # this one means that we hit our overall timeout on the request + raise RequestTimedOutError("Timeout waiting for response from remote server") + + return f + + # XXX: FIXME: This is horribly copy-pasted from matrixfederationclient. # The two should be factored out. |