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并且当它被重定向到Facebook应用页面点击"取消"按钮时,会出现以下异常:

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

有没有办法抓住它Django？

Answer 1

python-social-auth是一个较新的派生版本django-social-auth.

可以稍微修改AlexYar的答案,python-social-auth通过settings.py以下更改进行修改:

1. 添加中间件来处理SocialAuthException

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

2. 发生异常时要重定向到的URL

   SOCIAL_AUTH_LOGIN_ERROR_URL = '/'
   

3. 请注意,您还需要设置

   DEBUG = False
   

这是全部或阅读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 Exception.

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@Nicolas答案的略微修改,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 时DEBUG = False，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。

当DEBUG = True您在开发过程中仍然会在浏览器中看到错误页面时。