OpenID: Invalid base64-encoded string

[blueyed]

I am getting the following error when trying to login/signup with OpenID:

Error at /accounts/openid/login/
Invalid base64-encoded string: number of data characters (29) cannot be 1 more than a multiple of 4

The problem appears to be that the secret (bytes) gets saved via str() into the OpenIDStore (as b'Ks…k8=\n'), which then fails with decodestring in allauth/socialaccount/providers/openid/utils.py in getAssociation:

> …/django-allauth/allauth/socialaccount/providers/openid/utils.py(85)

  72         def storeAssociation(self, server_url, assoc=None):
  73             __import__('pdb').set_trace()
  74             try:
  75                 secret = base64.encodebytes(assoc.secret)
  76             except AttributeError:
  77                 # Python 2.x compat
  78                 secret = base64.encodestring(assoc.secret)
  79             OpenIDStore.objects.create(
  80                 server_url=server_url,
  81                 handle=assoc.handle,
  82                 secret=secret,
  83                 issued=assoc.issued,
  84                 lifetime=assoc.lifetime,
  85  ->             assoc_type=assoc.assoc_type
  86             )
 return None
(Pdb++) OpenIDStore.objects.get()
<OpenIDStore: https://openid.indieauth.com/openid>
(Pdb++) OpenIDStore.objects.get().secret
"b'T…\\n'"

This changed in Django 2.0, where previously force_text would decode the bytes into a string (in TextField), but now str() is used: https://github.com/django/django/blob/ba2057910644d3255a6283a16ceefbd0fceedafc/docs/releases/2.0.txt#L341-L359

Related commit: django/django@301de77