csrf.py 文件源码

def exempt(self, view):
        """Mark a view or blueprint to be excluded from CSRF protection.

        ::

            @app.route('/some-view', methods=['POST'])
            @csrf.exempt
            def some_view():
                ...

        ::

            bp = Blueprint(...)
            csrf.exempt(bp)

        """

        if isinstance(view, Blueprint):
            self._exempt_blueprints.add(view.name)
            return view

        if isinstance(view, string_types):
            view_location = view
        else:
            view_location = '%s.%s' % (view.__module__, view.__name__)

        self._exempt_views.add(view_location)
        return view