fileserver.py 文件源码

def RunFileServer(fileServerDir, fileServerPort):
    """
    Run a Flask file server on the given port.

    Explicitly specify instance_path, because Flask's
    auto_find_instance_path can fail when run in a frozen app.
    """
    app = Flask(__name__, instance_path=fileServerDir)

    @app.route('/fileserver-is-ready', methods=['GET'])
    def FileserverIsReady():  # pylint: disable=unused-variable
        """
        Used to test if file server has started.
        """
        return 'Fileserver is ready!'

    @app.route('/<path:filename>', methods=['GET'])
    def ServeFile(filename):  # pylint: disable=unused-variable
        """
        Serves up a file from PYUPDATER_FILESERVER_DIR.
        """
        return send_from_directory(fileServerDir, filename.strip('/'))

    def ShutDownServer():
        """
        Shut down the file server.
        """
        func = request.environ.get('werkzeug.server.shutdown')
        if func is None:
            raise RuntimeError('Not running with the Werkzeug Server')
        func()

    @app.route('/shutdown', methods=['POST'])
    def ShutDown():  # pylint: disable=unused-variable
        """
        Respond to a POSTed request to shut down the file server.
        """
        ShutDownServer()
        return 'Server shutting down...'

    app.run(host=LOCALHOST, port=fileServerPort)