Update all endpoints to use the `client_secret_post` auth method.

3 files changed, 3 insertions, 4 deletions

diff --git a/gn_auth/auth/authentication/oauth2/endpoints/introspection.py b/gn_auth/auth/authentication/oauth2/endpoints/introspection.py
index 572324e..200b25d 100644
--- a/gn_auth/auth/authentication/oauth2/endpoints/introspection.py
+++ b/gn_auth/auth/authentication/oauth2/endpoints/introspection.py
@@ -20,6 +20,7 @@ def get_token_user_sub(token: OAuth2Token) -> str:# pylint: disable=[unused-argu
 
 class IntrospectionEndpoint(_IntrospectionEndpoint):
     """Introspect token."""
+    CLIENT_AUTH_METHODS = ['client_secret_post']
     def query_token(self, token_string: str, token_type_hint: str):
         """Query the token."""
         return _query_token(self, token_string, token_type_hint)
diff --git a/gn_auth/auth/authentication/oauth2/endpoints/revocation.py b/gn_auth/auth/authentication/oauth2/endpoints/revocation.py
index 240ca30..80922f1 100644
--- a/gn_auth/auth/authentication/oauth2/endpoints/revocation.py
+++ b/gn_auth/auth/authentication/oauth2/endpoints/revocation.py
@@ -12,6 +12,7 @@ from .utilities import query_token as _query_token
 class RevocationEndpoint(_RevocationEndpoint):
     """Revoke the tokens"""
     ENDPOINT_NAME = "revoke"
+    CLIENT_AUTH_METHODS = ['client_secret_post']
     def query_token(self, token_string: str, token_type_hint: str):
         """Query the token."""
         return _query_token(self, token_string, token_type_hint)
diff --git a/gn_auth/auth/authentication/oauth2/models/oauth2client.py b/gn_auth/auth/authentication/oauth2/models/oauth2client.py
index 1413722..8fac648 100644
--- a/gn_auth/auth/authentication/oauth2/models/oauth2client.py
+++ b/gn_auth/auth/authentication/oauth2/models/oauth2client.py
@@ -92,12 +92,9 @@ class OAuth2Client(ClientMixin):
         * client_secret_post: Client uses the HTTP POST parameters
         * client_secret_basic: Client uses HTTP Basic
         """
-        if endpoint == "token":
+        if endpoint in ("token", "revoke", "introspection"):
             return (method in self.token_endpoint_auth_method
                     and method == "client_secret_post")
-        if endpoint in ("introspection", "revoke"):
-            return (method in self.token_endpoint_auth_method
-                    and method == "client_secret_basic")
         return False
 
     @cached_property