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authorPatrick Cloke <clokep@users.noreply.github.com>2023-06-13 12:07:55 -0400
committerGitHub <noreply@github.com>2023-06-13 18:07:55 +0200
commitdf945e0d7cd3cc78e54002115ae5e5793ed0a116 (patch)
treeae435150d0f3cb9f8b91fd86e214dc426050c895 /synapse/federation/federation_client.py
parentBump regex from 1.7.3 to 1.8.4 (#15769) (diff)
downloadsynapse-df945e0d7cd3cc78e54002115ae5e5793ed0a116.tar.xz
Fix MSC3983 support: Use the unstable /keys/claim federation endpoint if multiple keys are requested (#15755)
Diffstat (limited to '')
-rw-r--r--synapse/federation/federation_client.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index a2cf3a96c6..e5359ca558 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -260,7 +260,9 @@ class FederationClient(FederationBase):
         use_unstable = False
         for user_id, one_time_keys in query.items():
             for device_id, algorithms in one_time_keys.items():
-                if any(count > 1 for count in algorithms.values()):
+                # If more than one algorithm is requested, attempt to use the unstable
+                # endpoint.
+                if sum(algorithms.values()) > 1:
                     use_unstable = True
                 if algorithms:
                     # For the stable query, choose only the first algorithm.
@@ -296,6 +298,7 @@ class FederationClient(FederationBase):
         else:
             logger.debug("Skipping unstable claim client keys API")
 
+        # TODO Potentially attempt multiple queries and combine the results?
         return await self.transport_layer.claim_client_keys(
             user, destination, content, timeout
         )