old_contents: """
  Cross Site Request Forgery and Session HTTP Header Middleware.
  
  This module provides a middleware that implements protection
  against request forgeries from other sites.
  """
  
  from django.conf import settings
  from django.utils.deprecation import MiddlewareMixin
  
  
  class CSRFHeaderMiddleware(MiddlewareMixin):
      def process_view(self, request, callback, callback_args, callback_kwargs):
          csrf_token = request.META.get('HTTP_X_CSRFTOKEN', None)
          if csrf_token is not None:
              csrf_token_name = settings.CSRF_COOKIE_NAME
              request.COOKIES[csrf_token_name] = csrf_token
  
          return None
  
  
  class SessionHeaderMiddleware(MiddlewareMixin):
      def process_request(self, request):
          session_id = request.META.get('HTTP_X_SESSIONID', None)
          if session_id is not None:
              session_key = settings.SESSION_COOKIE_NAME
              request.COOKIES[session_key] = session_id
  
new_contents: """
  Cross Site Request Forgery and Session HTTP Header Middleware.
  
  This module provides middleware that implements protection
  against request forgeries from other sites.
  """
  
  from django.conf import settings
  from django.utils.deprecation import MiddlewareMixin
  
  
  class CSRFHeaderMiddleware(MiddlewareMixin):
      def process_request(self, request):
          csrf_token = request.META.get('HTTP_X_CSRFTOKEN', None)
          if csrf_token is not None:
              csrf_token_name = settings.CSRF_COOKIE_NAME
              request.COOKIES[csrf_token_name] = csrf_token
  
  
  class SessionHeaderMiddleware(MiddlewareMixin):
      def process_request(self, request):
          session_id = request.META.get('HTTP_X_SESSIONID', None)
          if session_id is not None:
              session_key = settings.SESSION_COOKIE_NAME
              request.COOKIES[session_key] = session_id
  
subject: use process_request