From c2c153dd3b97ec98ec7ef295deeb466d72027a01 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Tue, 21 Aug 2018 11:41:07 +0100
Subject: [PATCH] Log more detail when we fail to authenticate request

---
 synapse/federation/transport/server.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 33a37d4498..7a993fd1cf 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -261,10 +261,10 @@ class BaseFederationServlet(object):
             except NoAuthenticationError:
                 origin = None
                 if self.REQUIRE_AUTH:
-                    logger.warn("authenticate_request failed")
+                    logger.warn("authenticate_request failed: missing authentication")
                     raise
-            except Exception:
-                logger.warn("authenticate_request failed")
+            except Exception as e:
+                logger.warn("authenticate_request failed: %s", e)
                 raise
 
             if origin: