2 files changed, 7 insertions, 3 deletions
diff --git a/synapse/crypto/context_factory.py b/synapse/crypto/context_factory.py
index 2b03f5ac76..79668a402e 100644
--- a/synapse/crypto/context_factory.py
+++ b/synapse/crypto/context_factory.py
@@ -45,7 +45,11 @@ _TLS_VERSION_MAP = {
 
 class ServerContextFactory(ContextFactory):
     """Factory for PyOpenSSL SSL contexts that are used to handle incoming
-    connections."""
+    connections.
+
+    TODO: replace this with an implementation of IOpenSSLServerConnectionCreator,
+    per https://github.com/matrix-org/synapse/issues/1691
+    """
 
     def __init__(self, config):
         # TODO: once pyOpenSSL exposes TLS_METHOD and SSL_CTX_set_min_proto_version,
diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py
index 32c31b1cd1..42e4087a92 100644
--- a/synapse/crypto/keyring.py
+++ b/synapse/crypto/keyring.py
@@ -558,7 +558,7 @@ class PerspectivesKeyFetcher(BaseV2KeyFetcher):
     """KeyFetcher impl which fetches keys from the "perspectives" servers"""
 
     def __init__(self, hs):
-        super(PerspectivesKeyFetcher, self).__init__(hs)
+        super().__init__(hs)
         self.clock = hs.get_clock()
         self.client = hs.get_http_client()
         self.key_servers = self.config.key_servers
@@ -728,7 +728,7 @@ class ServerKeyFetcher(BaseV2KeyFetcher):
     """KeyFetcher impl which fetches keys from the origin servers"""
 
     def __init__(self, hs):
-        super(ServerKeyFetcher, self).__init__(hs)
+        super().__init__(hs)
         self.clock = hs.get_clock()
         self.client = hs.get_http_client()