tornado.py 文件源码

def access_validation_factory(app, login_manager, validator):
    """
    Creates an access validation wrapper using the supplied validator.

    :param validator: the access validator to use inside the validation wrapper
    :return: an access validator taking a request as parameter and performing the request validation
    """
    def f(request):
        """
        Creates a custom wsgi and Flask request context in order to be able to process user information
        stored in the current session.

        :param request: The Tornado request for which to create the environment and context
        """
        import flask

        wsgi_environ = WsgiInputContainer.environ(request)
        with app.request_context(wsgi_environ):
            app.session_interface.open_session(app, flask.request)
            login_manager.reload_user()
            validator(flask.request)
    return f