structure saas with tools

.venv/lib/python3.10/site-packages/authlib/oauth2/rfc9207/parameter.py

@@ -0,0 +1,32 @@
+from typing import Optional
+
+from authlib.common.urls import add_params_to_uri
+
+
+class IssuerParameter:
+    def __call__(self, grant):
+        grant.register_hook(
+            "after_authorization_response",
+            self.add_issuer_parameter,
+        )
+
+    def add_issuer_parameter(self, hook_type: str, response):
+        if self.get_issuer():
+            # RFC9207 §2
+            # In authorization responses to the client, including error responses,
+            # an authorization server supporting this specification MUST indicate
+            # its identity by including the iss parameter in the response.
+
+            new_location = add_params_to_uri(
+                response.location, {"iss": self.get_issuer()}
+            )
+            response.location = new_location
+
+    def get_issuer(self) -> Optional[str]:
+        """Return the issuer URL.
+        Developers MAY implement this method if they want to support :rfc:`RFC9207 <9207>`::
+
+            def get_issuer(self) -> str:
+                return "https://auth.example.org"
+        """
+        return None