Authentication failed in Github | python-social-auth

Question

In my django project I use python-social-auth. I am tring to add social login with Github but unfortunately have next error:

Authentication failed: The redirect_uri MUST match the registered callback URL for this application.

Full error looks like this:

Traceback (most recent call last):
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\exception.py", line 39, in inner
    response = get_response(request)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\views\decorators\cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\views\decorators\csrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_django\utils.py", line 50, in wrapper
    return func(request, backend, *args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_django\views.py", line 28, in complete
    redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_core\actions.py", line 41, in do_complete
    user = backend.complete(user=user, *args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_core\backends\base.py", line 39, in complete
    return self.auth_complete(*args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_core\utils.py", line 253, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_core\backends\oauth.py", line 386, in auth_complete
    self.process_error(self.data)
  File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\social_core\backends\oauth.py", line 379, in process_error
    data['error'])
social_core.exceptions.AuthFailed: Authentication failed: The redirect_uri MUST match the registered callback URL for this application.
[27/Feb/2017 16:06:53] "GET /ru/complete/github/?error=redirect_uri_mismatch&error_description=The+redirect_uri+MUST+match+the+registered+callback+URL+for+this+application.&error_uri=https%3A%2F%2Fdeveloper.github.com%2Fv3%2Foauth%2F%23redirect-uri-mismatch&state=fEheCJ4QPZZuz7qHPQUKxvMWl2Rw4xTV HTTP/1.1" 500 105176

I registered application in Github and set set the callback URL as http://localhost:8000/complete/github/.

settings.py

INSTALLED_APPS = [
    ***
    'social_django',  # python-social-auth
]

AUTHENTICATION_BACKENDS = (
    'social_core.backends.github.GithubOAuth2',
    'django.contrib.auth.backends.ModelBackend',
)

SOCIAL_AUTH_GITHUB_KEY = 'CLIENT ID'
SOCIAL_AUTH_GITHUB_SECRET = 'Client Secret'

MIDDLEWARE = [
   ***
   'social_django.middleware.SocialAuthExceptionMiddleware',
]

TEMPLATES = [
    {
        ***
        'OPTIONS': {
            'context_processors': [
                ***
                'social_django.context_processors.backends',
                'social_django.context_processors.login_redirect',
            ],
        },
    },
]

SOCIAL_AUTH_PIPELINE = (
    'social.pipeline.social_auth.social_details',
    'social.pipeline.social_auth.social_uid',
    'social.pipeline.social_auth.auth_allowed',
    'social.pipeline.social_auth.social_user',
    'social.pipeline.user.get_username',
    'social.pipeline.mail.mail_validation',
    'social.pipeline.social_auth.associate_by_email',
    'social.pipeline.user.create_user',
    'social.pipeline.social_auth.associate_user',
    'social.pipeline.social_auth.load_extra_data',
    'social.pipeline.user.user_details'
)

Epilate

have you registered localhost:8000/complete/github as callback url on your github application's developer page? – Carbonic

@AjayGupta yes, sure. – Epilate

could you paste what have you put there? – Carbonic

Also i would suggest you to look into this #23360660 . If it is not solved, let me know – Carbonic

Maybe you didnt notice but in the middle of my post I wrote that adress localhost:8000/complete/github – Epilate

That link didnt help me... For thats why I asked for help сause didnt understand why this error raise =( – Epilate

Finally, I found mistake. It was really in callback URL of GitHub. I have language prefix in my URL. The problem now I have 2 language versions (localhost:8000/ru... and localhost:8000/en/...) of site but in Github you can set only one of them. How do you think I can solve this problem? – Epilate

I don't even have any language prefix, still same error. Seems i have a long night ahead... – Frazzle

Answer 1

Try to registrate callback URL on http://127.0.0.1:8000/ instead http://localhost:8000/

Ji

your explanation is so simple write more about your answare for better understand. – Walliw

Answer 2

Pichkasik is right.

In the GitHub website, under application setting, change "localhost" with "127.0.0.1" and it works for me.

Bennir

This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review – Kennith

Answer 3

The problem was with callback URL of Github. In my case I had language prefix inside URL, didnt expect that Github would be sensitive to that cause other provideres didnt raise error for link without prefix. I fount this post which describe how to show default language without path prefixes. I hope it will help someone who would face with such problem.

Epilate

Answer 4

In the documentation

Register a new application at GitHub Developers, set the callback URL to http://example.com/complete/github/ replacing example.com with your domain. This will generate a Client Key and a Client Secret.

Thing is, it's not http://example.com/complete/github/ for everyone.

---

Let's say you're developing locally and you have the following in your urls.py

path('social/', include('social_django.urls', namespace='social')),

then you'll need to add in your Authorization callback URL the following

http://localhost/social/complete/github/

You can then do something like this in your template

<a href="{% url 'social:begin' 'github' %}">GitHub</a>

Acrylyl