Support the new `/auth_metadata` endpoint defined in MSC2965. (#18093)

See the updated MSC2965

---------

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/synapse/api/auth/msc3861_delegated.py b/synapse/api/auth/msc3861_delegated.py

index 53907c01d4..802ea51d18 100644
--- a/synapse/api/auth/msc3861_delegated.py
+++ b/synapse/api/auth/msc3861_delegated.py
@@ -174,6 +174,12 @@ class MSC3861DelegatedAuth(BaseAuth):
             logger.warning("Failed to load metadata:", exc_info=True)
             return None
 
+    async def auth_metadata(self) -> Dict[str, Any]:
+        """
+        Returns the auth metadata dict
+        """
+        return await self._issuer_metadata.get()
+
     async def _introspection_endpoint(self) -> str:
         """
         Returns the introspection endpoint of the issuer