python-social-auth AuthCanceled 异常

Question

我在我的 Django 应用程序中使用 python-social-auth 通过 Facebook 进行身份验证。 但是当用户尝试登录时，已经被重定向到 Facebook 应用页面，点击“取消”按钮，出现如下异常：

ERROR 2014-01-03 15:32:15,308 base :: Internal Server Error: /complete/facebook/
Traceback (most recent call last):
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 114, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 57, in wrapped_view
    return view_func(*args, **kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/apps/django_app/utils.py", line 45, in wrapper
    return func(request, backend, *args, **kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/apps/django_app/views.py", line 21, in complete
    redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/actions.py", line 54, in do_complete
    *args, **kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/strategies/base.py", line 62, in complete
    return self.backend.auth_complete(*args, **kwargs)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/facebook.py", line 63, in auth_complete
    self.process_error(self.data)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/facebook.py", line 56, in process_error
    super(FacebookOAuth2, self).process_error(data)
  File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/oauth.py", line 312, in process_error
    raise AuthCanceled(self, data.get('error_description', ''))
AuthCanceled: Authentication process canceled

有什么方法可以抓住它 Django 吗？

Answer 1

python-social-auth 是django-social-auth 的更新派生版本。

AlexYar 的answer 可以通过修改settings.py 进行轻微修改以与python-social-auth 一起使用，并进行以下更改：

1. 添加一个中间件来处理 SocialAuthException

   MIDDLEWARE_CLASSES += (
       'social.apps.django_app.middleware.SocialAuthExceptionMiddleware',
   )
   

2. 发生异常时重定向到的 URL

   SOCIAL_AUTH_LOGIN_ERROR_URL = '/'
   

3. 注意，还需要设置

   DEBUG = False
   

这就是全部或阅读http://python-social-auth.readthedocs.org/en/latest/configuration/django.html#exceptions-middleware

Answer 2

您可以创建一个中间件并捕获任何异常， 例外列表：https://github.com/omab/python-social-auth/blob/master/social/exceptions.py 在这种情况下，您的 AuthCanceled 异常。

middleware.py

from social.apps.django_app.middleware import SocialAuthExceptionMiddleware from django.shortcuts import HttpResponse from social import exceptions as social_exceptions class SocialAuthExceptionMiddleware(SocialAuthExceptionMiddleware): def process_exception(self, request, exception): if hasattr(social_exceptions, 'AuthCanceled'): return HttpResponse("I'm the Pony %s" % exception) else: raise exception

settings.py

MIDDLEWARE_CLASSES = ( ..... 'pat_to_middleware.SocialAuthExceptionMiddleware', )

Answer 3

这是对@Nicolas 答案的轻微修改，这对我有用。

middleware.py

from social.apps.django_app.middleware import SocialAuthExceptionMiddleware
from django.shortcuts import render
from social.exceptions import AuthCanceled

class SocialAuthExceptionMiddleware(SocialAuthExceptionMiddleware):
    def process_exception(self, request, exception):
        if type(exception) == AuthCanceled:
            return render(request, "pysocial/authcancelled.html", {})
        else:
            pass

settings.py

MIDDLEWARE_CLASSES += (
'myapp.middleware.SocialAuthExceptionMiddleware',
)

Answer 4

2018 年的答案：

1. 将SocialAuthExceptionMiddleware 中间件添加到您的配置中：

   MIDDLEWARE_CLASSES = [
       ...
       'social_django.middleware.SocialAuthExceptionMiddleware',
   ]
   

2. 在您的配置中设置SOCIAL_AUTH_LOGIN_ERROR_URL：

   SOCIAL_AUTH_LOGIN_ERROR_URL = '/login'
   

现在，当您拥有DEBUG = False 时，当您的用户在社交身份验证提供商页面中单击取消时，他们将被重定向到您的登录页面。

DEBUG = True 在开发过程中你仍然会在浏览器中看到错误页面。

Answer 5

只需添加

MIDDLEWARE_CLASSES = ( 'social_auth.middleware.SocialAuthExceptionMiddleware', )

类似的东西

LOGIN_ERROR_URL = '/'

仅此而已 或阅读http://django-social-auth.readthedocs.org/en/latest/configuration.html#exceptions-middleware

Answer 6

如果您不关心处理异常，请在 settings.py 中执行以下操作

SOCIAL_AUTH_RAISE_EXCEPTIONS = False

看到这个答案：How to solve Authentication process canceled error?

Answer 7

这是一个使用 social_django 更新的导入中间件

from social_django.middleware import SocialAuthExceptionMiddleware
from social_core import exceptions as social_exceptions
from django.shortcuts import HttpResponse
from django.shortcuts import render, redirect

class FacebookAuthCanceledExceptionMiddleware(SocialAuthExceptionMiddleware):

    def process_exception(self, request, exception):
        if hasattr(social_exceptions, 'AuthCanceled'):
            return redirect('auth_login')
        else:
            raise exception