structure saas with tools

.venv/lib/python3.10/site-packages/authlib/oauth2/rfc7523/validator.py

@@ -0,0 +1,59 @@
+import logging
+import time
+
+from authlib.jose import JoseError
+from authlib.jose import JWTClaims
+from authlib.jose import jwt
+
+from ..rfc6749 import TokenMixin
+from ..rfc6750 import BearerTokenValidator
+
+logger = logging.getLogger(__name__)
+
+
+class JWTBearerToken(TokenMixin, JWTClaims):
+    def check_client(self, client):
+        return self["client_id"] == client.get_client_id()
+
+    def get_scope(self):
+        return self.get("scope")
+
+    def get_expires_in(self):
+        return self["exp"] - self["iat"]
+
+    def is_expired(self):
+        return self["exp"] < time.time()
+
+    def is_revoked(self):
+        return False
+
+
+class JWTBearerTokenValidator(BearerTokenValidator):
+    TOKEN_TYPE = "bearer"
+    token_cls = JWTBearerToken
+
+    def __init__(self, public_key, issuer=None, realm=None, **extra_attributes):
+        super().__init__(realm, **extra_attributes)
+        self.public_key = public_key
+        claims_options = {
+            "exp": {"essential": True},
+            "client_id": {"essential": True},
+            "grant_type": {"essential": True},
+        }
+        if issuer:
+            claims_options["iss"] = {"essential": True, "value": issuer}
+        self.claims_options = claims_options
+
+    def authenticate_token(self, token_string):
+        try:
+            claims = jwt.decode(
+                token_string,
+                self.public_key,
+                claims_options=self.claims_options,
+                claims_cls=self.token_cls,
+            )
+            claims.validate()
+            return claims
+        except JoseError as error:
+            logger.debug("Authenticate token failed. %r", error)
+            return None