superset guestTokenRefresh 源码
superset guestTokenRefresh 代码
文件路径：/superset-embedded-sdk/src/guestTokenRefresh.ts
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import jwt_decode from "jwt-decode";
export const REFRESH_TIMING_BUFFER_MS = 5000 // refresh guest token early to avoid failed superset requests
export const MIN_REFRESH_WAIT_MS = 10000 // avoid blasting requests as fast as the cpu can handle
export const DEFAULT_TOKEN_EXP_MS = 300000 // (5 min) used only when parsing guest token exp fails
// when do we refresh the guest token?
export function getGuestTokenRefreshTiming(currentGuestToken: string) {
const parsedJwt = jwt_decode<Record<string, any>>(currentGuestToken);
// if exp is int, it is in seconds, but Date() takes milliseconds
const exp = new Date(/[^0-9\.]/g.test(parsedJwt.exp) ? parsedJwt.exp : parseFloat(parsedJwt.exp) * 1000);
const isValidDate = exp.toString() !== 'Invalid Date';
const ttl = isValidDate ? Math.max(MIN_REFRESH_WAIT_MS, exp.getTime() - Date.now()) : DEFAULT_TOKEN_EXP_MS;
return ttl - REFRESH_TIMING_BUFFER_MS;
}
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