Fix getTurnServer response: integer ttl

`ttl` must be an integer according to the OpenAPI spec: https://github.com/matrix-org/matrix-doc/blob/old_master/data/api/client-server/voip.yaml#L70 True division (`/`) returns a float instead (`"ttl": 7200.0`). Floor division (`//`) returns an integer, so the response is spec compliant. Signed-off-by: Lukas Lihotzki <lukas@lihotzki.de>
matrix-org · Sep 27, 2021 · 9802de2 · 9802de2
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diff --git a/changelog.d/10922.bugfix b/changelog.d/10922.bugfix
@@ -0,0 +1 @@
+Fix a minor bug in the response to `/_matrix/client/r0/voip/turnServer`. Contributed by @lukaslihotzki.
diff --git a/synapse/rest/client/voip.py b/synapse/rest/client/voip.py
@@ -70,7 +70,7 @@ async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
             {
                 "username": username,
                 "password": password,
-                "ttl": userLifetime / 1000,
+                "ttl": userLifetime // 1000,
                 "uris": turnUris,
             },
         )