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-rw-r--r--synapse/http/matrixfederationclient.py33
1 files changed, 27 insertions, 6 deletions
diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py
index 821aed362b..2cb9e3e231 100644
--- a/synapse/http/matrixfederationclient.py
+++ b/synapse/http/matrixfederationclient.py
@@ -22,12 +22,12 @@ from twisted.web._newclient import ResponseDone
 from synapse.http import cancelled_to_request_timed_out_error
 from synapse.http.endpoint import matrix_federation_endpoint
 import synapse.metrics
-from synapse.util.async import sleep, add_timeout_to_deferred
+from synapse.util.async import add_timeout_to_deferred
 from synapse.util import logcontext
 from synapse.util.logcontext import make_deferred_yieldable
 import synapse.util.retryutils
 
-from canonicaljson import encode_canonical_json
+from canonicaljson import encode_canonical_json, json
 
 from synapse.api.errors import (
     SynapseError, Codes, HttpResponseException, FederationDeniedError,
@@ -36,7 +36,6 @@ from synapse.api.errors import (
 from signedjson.sign import sign_json
 
 import cgi
-import simplejson as json
 import logging
 import random
 import sys
@@ -193,6 +192,7 @@ class MatrixFederationHttpClient(object):
                         add_timeout_to_deferred(
                             request_deferred,
                             timeout / 1000. if timeout else 60,
+                            self.hs.get_reactor(),
                             cancelled_to_request_timed_out_error,
                         )
                         response = yield make_deferred_yieldable(
@@ -234,7 +234,7 @@ class MatrixFederationHttpClient(object):
                                 delay = min(delay, 2)
                                 delay *= random.uniform(0.8, 1.4)
 
-                            yield sleep(delay)
+                            yield self.clock.sleep(delay)
                             retries_left -= 1
                         else:
                             raise
@@ -260,14 +260,35 @@ class MatrixFederationHttpClient(object):
             defer.returnValue(response)
 
     def sign_request(self, destination, method, url_bytes, headers_dict,
-                     content=None):
+                     content=None, destination_is=None):
+        """
+        Signs a request by adding an Authorization header to headers_dict
+        Args:
+            destination (bytes|None): The desination home server of the request.
+                May be None if the destination is an identity server, in which case
+                destination_is must be non-None.
+            method (bytes): The HTTP method of the request
+            url_bytes (bytes): The URI path of the request
+            headers_dict (dict): Dictionary of request headers to append to
+            content (bytes): The body of the request
+            destination_is (bytes): As 'destination', but if the destination is an
+                identity server
+
+        Returns:
+            None
+        """
         request = {
             "method": method,
             "uri": url_bytes,
             "origin": self.server_name,
-            "destination": destination,
         }
 
+        if destination is not None:
+            request["destination"] = destination
+
+        if destination_is is not None:
+            request["destination_is"] = destination_is
+
         if content is not None:
             request["content"] = content