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Avoid decoding jwt twice #440

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Merged
merged 3 commits into from
May 2, 2025
Merged

Avoid decoding jwt twice #440

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d469f8b
Avoid decoding jwt twice
na-ka-na May 1, 2025
8bba538
Fix typo
gcarvelli May 2, 2025
75e1bef
remove unnecessary mock
gcarvelli May 2, 2025
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62 changes: 29 additions & 33 deletions tests/test_session.py
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Original file line number Diff line number Diff line change
Expand Up @@ -236,9 +236,7 @@ def test_authenticate_success(self, session_constants, mock_user_management):
"entitlements": ["feature_1"],
}

with patch.object(
Session, "unseal_data", return_value=mock_session
), patch.object(session, "_is_valid_jwt", return_value=True), patch(
with patch.object(Session, "unseal_data", return_value=mock_session), patch(
"jwt.decode", return_value=mock_jwt_payload
), patch.object(
session.jwks,
Expand Down Expand Up @@ -324,22 +322,21 @@ def test_refresh_success(self, session_constants, mock_user_management):
cookie_password=session_constants["COOKIE_PASSWORD"],
)

with patch.object(session, "_is_valid_jwt", return_value=True) as _:
with patch(
"jwt.decode",
return_value={
"sid": session_constants["SESSION_ID"],
"org_id": session_constants["ORGANIZATION_ID"],
"role": "admin",
"permissions": ["read"],
"entitlements": ["feature_1"],
},
):
response = session.refresh()
with patch(
"jwt.decode",
return_value={
"sid": session_constants["SESSION_ID"],
"org_id": session_constants["ORGANIZATION_ID"],
"role": "admin",
"permissions": ["read"],
"entitlements": ["feature_1"],
},
):
response = session.refresh()

assert isinstance(response, RefreshWithSessionCookieSuccessResponse)
assert response.authenticated is True
assert response.user.id == session_constants["TEST_USER"]["id"]
assert isinstance(response, RefreshWithSessionCookieSuccessResponse)
assert response.authenticated is True
assert response.user.id == session_constants["TEST_USER"]["id"]

# Verify the refresh token was used correctly
mock_user_management.authenticate_with_refresh_token.assert_called_once_with(
Expand Down Expand Up @@ -425,22 +422,21 @@ async def test_refresh_success(self, session_constants, mock_user_management):
cookie_password=session_constants["COOKIE_PASSWORD"],
)

with patch.object(session, "_is_valid_jwt", return_value=True) as _:
with patch(
"jwt.decode",
return_value={
"sid": session_constants["SESSION_ID"],
"org_id": session_constants["ORGANIZATION_ID"],
"role": "admin",
"permissions": ["read"],
"entitlements": ["feature_1"],
},
):
response = await session.refresh()
with patch(
"jwt.decode",
return_value={
"sid": session_constants["SESSION_ID"],
"org_id": session_constants["ORGANIZATION_ID"],
"role": "admin",
"permissions": ["read"],
"entitlements": ["feature_1"],
},
):
response = await session.refresh()

assert isinstance(response, RefreshWithSessionCookieSuccessResponse)
assert response.authenticated is True
assert response.user.id == session_constants["TEST_USER"]["id"]
assert isinstance(response, RefreshWithSessionCookieSuccessResponse)
assert response.authenticated is True
assert response.user.id == session_constants["TEST_USER"]["id"]

# Verify the refresh token was used correctly
mock_user_management.authenticate_with_refresh_token.assert_called_once_with(
Expand Down
31 changes: 9 additions & 22 deletions workos/session.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,20 +77,20 @@ def authenticate(
reason=AuthenticateWithSessionCookieFailureReason.INVALID_SESSION_COOKIE,
)

if not self._is_valid_jwt(session["access_token"]):
try:
signing_key = self.jwks.get_signing_key_from_jwt(session["access_token"])
decoded = jwt.decode(
session["access_token"],
signing_key.key,
algorithms=self.jwk_algorithms,
options={"verify_aud": False},
)
except jwt.exceptions.InvalidTokenError:
return AuthenticateWithSessionCookieErrorResponse(
authenticated=False,
reason=AuthenticateWithSessionCookieFailureReason.INVALID_JWT,
)

signing_key = self.jwks.get_signing_key_from_jwt(session["access_token"])
decoded = jwt.decode(
session["access_token"],
signing_key.key,
algorithms=self.jwk_algorithms,
options={"verify_aud": False},
)

return AuthenticateWithSessionCookieSuccessResponse(
authenticated=True,
session_id=decoded["sid"],
Expand Down Expand Up @@ -128,19 +128,6 @@ def get_logout_url(self, return_to: Optional[str] = None) -> str:
)
return str(result)

def _is_valid_jwt(self, token: str) -> bool:
try:
signing_key = self.jwks.get_signing_key_from_jwt(token)
jwt.decode(
token,
signing_key.key,
algorithms=self.jwk_algorithms,
options={"verify_aud": False},
)
return True
except jwt.exceptions.InvalidTokenError:
return False

@staticmethod
def seal_data(data: Dict[str, Any], key: str) -> str:
fernet = Fernet(key)
Expand Down