webapp.py 文件源码

def configure_static_route(app):
    # Note (dmsimard)
    # /static/ is provided from in-tree bundled files and libraries.
    # /static/packaged/ is routed to serve packaged (i.e, XStatic) libraries.
    #
    # The reason why this isn't defined as a proper view by itself is due to
    # a limitation in flask-frozen. Blueprint'd views methods are like so:
    # "<view>.<method>. The URL generator of flask-frozen is a method decorator
    # that expects the method name as the function and, obviously, you can't
    # really have dots in functions.
    # By having the route configured at the root of the application, there's no
    # dots and we can decorate "serve_static_packaged" instead of, say,
    # "static.serve_packaged".

    @app.route('/static/packaged/<module>/<path:filename>')
    def serve_static_packaged(module, filename):
        xstatic = current_app.config['XSTATIC']

        if module in xstatic:
            return send_from_directory(xstatic[module], filename)
        else:
            abort(404)