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-rw-r--r--synapse/http/client.py11
-rw-r--r--synapse/http/federation/well_known_resolver.py5
-rw-r--r--synapse/http/servlet.py5
3 files changed, 10 insertions, 11 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py
index 8aeb70cdec..dad01a8e56 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -19,7 +19,7 @@ import urllib
 from io import BytesIO
 
 import treq
-from canonicaljson import encode_canonical_json, json
+from canonicaljson import encode_canonical_json
 from netaddr import IPAddress
 from prometheus_client import Counter
 from zope.interface import implementer, provider
@@ -47,6 +47,7 @@ from synapse.http import (
 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
+from synapse.util import json_decoder
 from synapse.util.async_helpers import timeout_deferred
 
 logger = logging.getLogger(__name__)
@@ -391,7 +392,7 @@ class SimpleHttpClient(object):
         body = await make_deferred_yieldable(readBody(response))
 
         if 200 <= response.code < 300:
-            return json.loads(body.decode("utf-8"))
+            return json_decoder.decode(body.decode("utf-8"))
         else:
             raise HttpResponseException(
                 response.code, response.phrase.decode("ascii", errors="replace"), body
@@ -433,7 +434,7 @@ class SimpleHttpClient(object):
         body = await make_deferred_yieldable(readBody(response))
 
         if 200 <= response.code < 300:
-            return json.loads(body.decode("utf-8"))
+            return json_decoder.decode(body.decode("utf-8"))
         else:
             raise HttpResponseException(
                 response.code, response.phrase.decode("ascii", errors="replace"), body
@@ -463,7 +464,7 @@ class SimpleHttpClient(object):
             actual_headers.update(headers)
 
         body = await self.get_raw(uri, args, headers=headers)
-        return json.loads(body.decode("utf-8"))
+        return json_decoder.decode(body.decode("utf-8"))
 
     async def put_json(self, uri, json_body, args={}, headers=None):
         """ Puts some json to the given URI.
@@ -506,7 +507,7 @@ class SimpleHttpClient(object):
         body = await make_deferred_yieldable(readBody(response))
 
         if 200 <= response.code < 300:
-            return json.loads(body.decode("utf-8"))
+            return json_decoder.decode(body.decode("utf-8"))
         else:
             raise HttpResponseException(
                 response.code, response.phrase.decode("ascii", errors="replace"), body
diff --git a/synapse/http/federation/well_known_resolver.py b/synapse/http/federation/well_known_resolver.py
index 89a3b041ce..f794315deb 100644
--- a/synapse/http/federation/well_known_resolver.py
+++ b/synapse/http/federation/well_known_resolver.py
@@ -13,7 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
 import logging
 import random
 import time
@@ -26,7 +25,7 @@ from twisted.web.http import stringToDatetime
 from twisted.web.http_headers import Headers
 
 from synapse.logging.context import make_deferred_yieldable
-from synapse.util import Clock
+from synapse.util import Clock, json_decoder
 from synapse.util.caches.ttlcache import TTLCache
 from synapse.util.metrics import Measure
 
@@ -181,7 +180,7 @@ class WellKnownResolver(object):
             if response.code != 200:
                 raise Exception("Non-200 response %s" % (response.code,))
 
-            parsed_body = json.loads(body.decode("utf-8"))
+            parsed_body = json_decoder.decode(body.decode("utf-8"))
             logger.info("Response from .well-known: %s", parsed_body)
 
             result = parsed_body["m.server"].encode("ascii")
diff --git a/synapse/http/servlet.py b/synapse/http/servlet.py
index a34e5ead88..53acba56cb 100644
--- a/synapse/http/servlet.py
+++ b/synapse/http/servlet.py
@@ -17,9 +17,8 @@
 
 import logging
 
-from canonicaljson import json
-
 from synapse.api.errors import Codes, SynapseError
+from synapse.util import json_decoder
 
 logger = logging.getLogger(__name__)
 
@@ -215,7 +214,7 @@ def parse_json_value_from_request(request, allow_empty_body=False):
         return None
 
     try:
-        content = json.loads(content_bytes.decode("utf-8"))
+        content = json_decoder.decode(content_bytes.decode("utf-8"))
     except Exception as e:
         logger.warning("Unable to parse JSON: %s", e)
         raise SynapseError(400, "Content not JSON.", errcode=Codes.NOT_JSON)