Uniformize spam-checker API, part 5: expand other spam-checker callbacks to return Tuple[Codes, dict] (#13044)

Signed-off-by: David Teller <[email protected]>
Co-authored-by: Brendan Abolivier <[email protected]>

Author: Yoric

changelog.d/13044.misc

@@ -0,0 +1 @@
+Support temporary experimental return values for spam checker module callbacks.

synapse/api/errors.py

@@ -297,8 +297,14 @@ class AuthError(SynapseError):
     other poorly-defined times.
     """
 
-    def __init__(self, code: int, msg: str, errcode: str = Codes.FORBIDDEN):
-        super().__init__(code, msg, errcode)
+    def __init__(
+        self,
+        code: int,
+        msg: str,
+        errcode: str = Codes.FORBIDDEN,
+        additional_fields: Optional[dict] = None,
+    ):
+        super().__init__(code, msg, errcode, additional_fields)
 
 
 class InvalidClientCredentialsError(SynapseError):