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import CryptoES from "../../../dxmodules/crypto-es/index.js";
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import stringUtils from "./stringUtils.js";
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const tokenUtil = {};
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//密钥
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const secret = "fKwW6r3sUb+l20WhS8K5Aw33RN4BtHYvQgzm/gkzFNc=";
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tokenUtil.base64Encode = function(str) {
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return CryptoES.encode(str)
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}
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/**
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* 生成token
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* @param {*} data 加密数据
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* @returns
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*/
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tokenUtil.generateToken = function (data) {
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let payload = {}
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payload.data = data;
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payload.createTime = new Date().getTime();
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// 创建加密方法
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const encryptedData = CryptoES.AES.encrypt(JSON.stringify(payload), secret).toString();
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// 输出加密后的字符串和解密后的字符串
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return encryptedData;
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}
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/**
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* 验证token
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* @param {*} token 加密token
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* @returns
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*/
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tokenUtil.verifyToken = function (token, effectiveTime) {
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const decryptedData = CryptoES.AES.decrypt(token, secret).toString(CryptoES.enc.Utf8);
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return tokenUtil.computeSignature(decryptedData, effectiveTime);
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}
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/**
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* 判断token 是否有效
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* @param {*} encodedPayload
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* @returns
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*/
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tokenUtil.computeSignature = function (encodedPayload, effectiveTime) {
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if (stringUtils.isEmpty(encodedPayload)) {
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return false
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}
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try {
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let payload = JSON.parse(encodedPayload)
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if (payload.data != null && payload.createTime != null) {
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let time = payload.createTime + effectiveTime
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let nowTime = new Date().getTime();
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if (time > nowTime ) {
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return true;
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}
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}
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} catch (error) {
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return false
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}
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return false;
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}
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export default tokenUtil;
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