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-rw-r--r--synapse/http/client.py14
-rw-r--r--synapse/http/endpoint.py3
-rw-r--r--synapse/http/matrixfederationclient.py28
3 files changed, 41 insertions, 4 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py
index 4abb479ae3..f3e4973c2e 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -18,6 +18,7 @@ from OpenSSL.SSL import VERIFY_NONE
 from synapse.api.errors import (
     CodeMessageException, MatrixCodeMessageException, SynapseError, Codes,
 )
+from synapse.util.caches import CACHE_SIZE_FACTOR
 from synapse.util.logcontext import make_deferred_yieldable
 from synapse.util import logcontext
 import synapse.metrics
@@ -30,6 +31,7 @@ from twisted.internet.endpoints import HostnameEndpoint, wrapClientTLS
 from twisted.web.client import (
     BrowserLikeRedirectAgent, ContentDecoderAgent, GzipDecoder, Agent,
     readBody, PartialDownloadError,
+    HTTPConnectionPool,
 )
 from twisted.web.client import FileBodyProducer as TwistedFileBodyProducer
 from twisted.web.http import PotentialDataLoss
@@ -64,13 +66,23 @@ class SimpleHttpClient(object):
     """
     def __init__(self, hs):
         self.hs = hs
+
+        pool = HTTPConnectionPool(reactor)
+
+        # the pusher makes lots of concurrent SSL connections to sygnal, and
+        # tends to do so in batches, so we need to allow the pool to keep lots
+        # of idle connections around.
+        pool.maxPersistentPerHost = max((100 * CACHE_SIZE_FACTOR, 5))
+        pool.cachedConnectionTimeout = 2 * 60
+
         # The default context factory in Twisted 14.0.0 (which we require) is
         # BrowserLikePolicyForHTTPS which will do regular cert validation
         # 'like a browser'
         self.agent = Agent(
             reactor,
             connectTimeout=15,
-            contextFactory=hs.get_http_client_context_factory()
+            contextFactory=hs.get_http_client_context_factory(),
+            pool=pool,
         )
         self.user_agent = hs.version_string
         self.clock = hs.get_clock()
diff --git a/synapse/http/endpoint.py b/synapse/http/endpoint.py
index e2b99ef3bd..87639b9151 100644
--- a/synapse/http/endpoint.py
+++ b/synapse/http/endpoint.py
@@ -357,8 +357,7 @@ def _get_hosts_for_srv_record(dns_client, host):
     def eb(res, record_type):
         if res.check(DNSNameError):
             return []
-        logger.warn("Error looking up %s for %s: %s",
-                    record_type, host, res, res.value)
+        logger.warn("Error looking up %s for %s: %s", record_type, host, res)
         return res
 
     # no logcontexts here, so we can safely fire these off and gatherResults
diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py
index 833496b72d..9145405cb0 100644
--- a/synapse/http/matrixfederationclient.py
+++ b/synapse/http/matrixfederationclient.py
@@ -27,7 +27,7 @@ import synapse.metrics
 from canonicaljson import encode_canonical_json
 
 from synapse.api.errors import (
-    SynapseError, Codes, HttpResponseException,
+    SynapseError, Codes, HttpResponseException, FederationDeniedError,
 )
 
 from signedjson.sign import sign_json
@@ -123,11 +123,22 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``HTTPRequestException``: if we get an HTTP response
                 code >= 300.
+
             Fails with ``NotRetryingDestination`` if we are not yet ready
                 to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+                is not on our federation whitelist
+
             (May also fail with plenty of other Exceptions for things like DNS
                 failures, connection failures, SSL failures.)
         """
+        if (
+            self.hs.config.federation_domain_whitelist and
+            destination not in self.hs.config.federation_domain_whitelist
+        ):
+            raise FederationDeniedError(destination)
+
         limiter = yield synapse.util.retryutils.get_retry_limiter(
             destination,
             self.clock,
@@ -308,6 +319,9 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``NotRetryingDestination`` if we are not yet ready
             to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+            is not on our federation whitelist
         """
 
         if not json_data_callback:
@@ -368,6 +382,9 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``NotRetryingDestination`` if we are not yet ready
             to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+            is not on our federation whitelist
         """
 
         def body_callback(method, url_bytes, headers_dict):
@@ -422,6 +439,9 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``NotRetryingDestination`` if we are not yet ready
             to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+            is not on our federation whitelist
         """
         logger.debug("get_json args: %s", args)
 
@@ -475,6 +495,9 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``NotRetryingDestination`` if we are not yet ready
             to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+            is not on our federation whitelist
         """
 
         response = yield self._request(
@@ -518,6 +541,9 @@ class MatrixFederationHttpClient(object):
 
             Fails with ``NotRetryingDestination`` if we are not yet ready
             to retry this server.
+
+            Fails with ``FederationDeniedError`` if this destination
+            is not on our federation whitelist
         """
 
         encoded_args = {}