fix: in token endpoint request, do not decode the response data if it is not encoded (#393)
* fix: in token endpoint request, do not decode the response data if it is not encoded
The interface of the underlying transport
'google.auth.transport.Request' that makes the token
request does not guarantee the response is encoded. In Python 3, the
non-encoded strings do not have 'decode' attribute. Blindly decoding all
the response could have the token refresh throw here.
diff --git a/google/oauth2/_client.py b/google/oauth2/_client.py
index f92b097..4cf7a7f 100644
--- a/google/oauth2/_client.py
+++ b/google/oauth2/_client.py
@@ -103,7 +103,11 @@
# occurs.
while True:
response = request(method="POST", url=token_uri, headers=headers, body=body)
- response_body = response.data.decode("utf-8")
+ response_body = (
+ response.data.decode("utf-8")
+ if hasattr(response.data, "decode")
+ else response.data
+ )
response_data = json.loads(response_body)
if response.status == http_client.OK: