python: OIDC + Python3 + Incorrect padding during base64decode

Using 3.6.5

  File "/usr/lib/python3.6/site-packages/kubernetes-6.0.0_snapshot-py3.6.egg/kubernetes/config/kube_config.py", line 474, in load_kube_config
  File "/usr/lib/python3.6/site-packages/kubernetes-6.0.0_snapshot-py3.6.egg/kubernetes/config/kube_config.py", line 355, in load_and_set
  File "/usr/lib/python3.6/site-packages/kubernetes-6.0.0_snapshot-py3.6.egg/kubernetes/config/kube_config.py", line 185, in _load_authentication
  File "/usr/lib/python3.6/site-packages/kubernetes-6.0.0_snapshot-py3.6.egg/kubernetes/config/kube_config.py", line 237, in _load_oid_token
  File "/usr/lib/python3.6/base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

When attempting to decode the token, I run into this issue in _load_oid_token

  if PY3:
    jwt_attributes = json.loads(
      base64.b64decode(parts[1]).decode('utf-8')
    )

The non py3 block appends “==” to the token part before decoding it. If i use that, it works fine.

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 11
Comments: 19 (6 by maintainers)

Most upvoted comments

Can I bump this? My existing code is Python 3.6 and I can’t port it back to 2.x due to other libraries. The PR works for me, can we get it pushed into PyPi plz? Thank you.

TechnoTaff on May 16, 2019

fixed in https://github.com/kubernetes-client/python-base/pull/79

roycaihw on Jun 19, 2019