JSONDecodeError at /complete/facebook

[troygrosfield]

I'm using python 3.4, django 1.8 and when I try and connect via facebook I receive the following error (this was previously working for me until doing one of the recent upgrades):

File "/python3.4/site-packages/django/core/handlers/base.py" in get_response
  132.         response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/python3.4/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  57.         response = view_func(request, *args, **kwargs)
File "/python3.4/site-packages/django/views/decorators/csrf.py" in wrapped_view
  58.         return view_func(*args, **kwargs)
File "/python3.4/site-packages/social/apps/django_app/utils.py" in wrapper
  52.         return func(request, backend, *args, **kwargs)
File "/python3.4/site-packages/social/apps/django_app/views.py" in complete
  28.         redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs)
File "/python3.4/site-packages/social/actions.py" in do_complete
  40.         user = backend.complete(user=user, *args, **kwargs)
File "/python3.4/site-packages/social/backends/base.py" in complete
  40.         return self.auth_complete(*args, **kwargs)
File "/python3.4/site-packages/social/utils.py" in wrapper
  202.         return func(*args, **kwargs)
File "/python3.4/site-packages/social/backends/facebook.py" in auth_complete
  78.          'code': self.data['code']
File "/python3.4/site-packages/social/backends/base.py" in get_json
  229.         return self.request(url, *args, **kwargs).json()
File "/python3.4/site-packages/requests/models.py" in json
  802.         return json.loads(self.text, **kwargs)
File "/python3.4/site-packages/simplejson/__init__.py" in loads
  505.         return _default_decoder.decode(s)
File "/python3.4/site-packages/simplejson/decoder.py" in decode
  370.         obj, end = self.raw_decode(s)
File "/python3.4/site-packages/simplejson/decoder.py" in raw_decode
  400.         return self.scan_once(s, idx=_w(s, idx).end())

Exception Type: JSONDecodeError at /complete/facebook
Exception Value: Expecting value: line 1 column 1 (char 0)

Facebook correctly sends back the access token and expires time:

access_token=some_correct_access_token&expires=5125437

However, once it hits the complete url, the error above appears. I can't get beyond the following line in the auth_complete method:

• https://github.com/omab/python-social-auth/blob/master/social/backends/facebook.py#L74

Thoughts?

[omab]

That's odd, it's working just fine for me, I've changed that method recently to use get_json() since the docs specify that with API v2.3 the response to /oauth/access_token is of JSON nature (https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow/#confirm).

Maybe you need to enable v2.3?

[troygrosfield]

What version of python are you running and are you using it with django? If so, what version?

I blew away my entire local setup and deleted the permissions from facebook. Then tried it again and got the same error using the v2.3 urls from the FacebookOAuth2 class.

[omab]

Python 3.4.2 and Django 1.8 here too.

[aemdy]

The same issue here. Using Python 3.4.2 and Django 1.7.7.

[omab]

That change should get rid of the issue, please test and reopen the ticket if needed.

[troygrosfield]

@omab, I tested the changes and that fixed the error. Thanks for the quick turnaround!

[dfejgelis]

@omab THANKS!! I've been debugging this for looong time.