old_contents: # -*- coding: utf-8 -*-
  
  
  from django.conf import settings
  from django.contrib import messages
  from django.shortcuts import redirect
  
  from social_auth.backends.exceptions import AuthException
  
  
  class SocialAuthExceptionMiddleware(object):
      """Middleware that handles Social Auth AuthExceptions by providing the user
      with a message, logging an error, and redirecting to some next location.
  
      By default, the exception message itself is sent to the user and they are
      redirected to the location specified in the LOGIN_ERROR_URL setting.
  
      This middleware can be extended by overriding the get_message or
      get_redirect_uri methods, which each accept request and exception.
      """
  
      def process_exception(self, request, exception):
          if isinstance(exception, AuthException):
              backend_name = exception.backend.AUTH_BACKEND.name
              message = self.get_message(request, exception)
              messages.error(request, message,
                      extra_tags=u'social-auth {0}'.format(backend_name))
  
              url = self.get_redirect_uri(request, exception)
              return redirect(url)
  
      def get_message(self, request, exception):
          return unicode(exception)
  
      def get_redirect_uri(self, request, exception):
          return settings.LOGIN_ERROR_URL
  
  
new_contents: # -*- coding: utf-8 -*-
  
  
  from django.conf import settings
  from django.contrib import messages
  from django.shortcuts import redirect
  
  from social_auth.backends.exceptions import AuthException
  
  
  class SocialAuthExceptionMiddleware(object):
      """Middleware that handles Social Auth AuthExceptions by providing the user
      with a message, logging an error, and redirecting to some next location.
  
      By default, the exception message itself is sent to the user and they are
      redirected to the location specified in the LOGIN_ERROR_URL setting.
  
      This middleware can be extended by overriding the get_message or
      get_redirect_uri methods, which each accept request and exception.
      """
  
      def process_exception(self, request, exception):
          if isinstance(exception, AuthException):
              backend_name = exception.backend.name
              message = self.get_message(request, exception)
              messages.error(request, message,
                      extra_tags=u'social-auth {0}'.format(backend_name))
  
              url = self.get_redirect_uri(request, exception)
              return redirect(url)
  
      def get_message(self, request, exception):
          return unicode(exception)
  
      def get_redirect_uri(self, request, exception):
          return settings.LOGIN_ERROR_URL
  
  
subject: Correct access of backend name from AuthException