2021-05-13 11:03:32 +08:00
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import Request from "@/lib/request/index.js";
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import { refreshTokenFn } from "@/api/login.js";
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import storage from "@/utils/storage.js";
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import { md5 } from "@/utils/md5.js";
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import Foundation from "@/utils/Foundation.js";
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import api from "@/config/api.js";
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import uuid from "@/utils/uuid.modified.js";
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/**
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* 无痛刷新token思路(如果不使用无痛刷新token,忽略此处注释)
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* 看了很多,有个问题一直得不到解决----‘多个接口请求,token失效,如何让获取token只获取一遍’、
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* 于是想到了闭包防抖......
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* 本方案并不是最佳方案,只是给你们提供一种思路。如果你有完美解决方案,可以分享一下
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*/
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const expireToken = []; // 储存过期的token
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// 防抖闭包来一波
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function getTokenDebounce() {
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let lock = false;
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let success = false;
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return async function () {
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if (!lock) {
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lock = true;
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2021-05-17 18:19:26 +08:00
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await refreshTokenFn(storage.getRefreshToken())
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2021-05-13 11:03:32 +08:00
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.then((res) => {
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if (res.data.success) {
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let { accessToken, refreshToken } = res.data.result;
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storage.setAccessToken(accessToken);
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storage.setRefreshToken(refreshToken);
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success = true;
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lock = false;
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} else {
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cleanStorage();
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success = false;
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lock = false;
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}
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})
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.catch((error) => {
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cleanStorage();
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success = false;
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lock = false;
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});
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}
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return new Promise((resolve) => {
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// XXX 我只能想到通过轮询来看获取新的token是否结束,有好的方案可以说。一直看lock,直到请求失败或者成功
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const timer = setInterval(() => {
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if (!lock) {
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clearInterval(timer);
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2021-05-17 18:19:26 +08:00
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2021-05-13 11:03:32 +08:00
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if (success) {
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resolve("success");
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} else {
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cleanStorage();
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resolve("fail");
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}
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}
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}, 100); // 轮询时间可以自己看改成多少合适
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});
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};
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}
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function cleanStorage() {
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uni.showToast({
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title: "你的登录状态已过期,请重新登录",
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icon: "none",
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duration: 1500,
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});
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2021-05-17 18:19:26 +08:00
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if (uni.showLoading()) {
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uni.hideLoading();
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}
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2021-05-13 11:03:32 +08:00
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storage.setHasLogin(false);
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storage.setAccessToken("");
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storage.setRefreshToken("");
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storage.setUuid("");
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storage.setUserInfo({});
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uni.navigateTo({
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url: "/pages/passport/login",
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});
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}
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let http = new Request();
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const refreshToken = getTokenDebounce();
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http.setConfig((config) => {
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// 没有uuid创建
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if (!storage.getUuid()) {
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storage.setUuid(uuid.v1());
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}
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/* 设置全局配置 */
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config.baseURL = api.buyer;
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config.header = {
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...config.header,
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};
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config.validateStatus = (statusCode) => {
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// 不论什么状态,统一在正确中处理
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return true;
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};
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return config;
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});
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http.interceptors.request.use(
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(config) => {
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/* 请求之前拦截器。可以使用async await 做异步操作 */
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let accessToken = storage.getAccessToken();
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if (accessToken) {
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const nonce = Foundation.randomString(6);
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const timestamp = parseInt(new Date().getTime() / 1000);
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const sign = md5(nonce + timestamp + accessToken);
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const _params = {
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nonce,
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timestamp,
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sign,
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};
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let params = config.params || {};
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params = { ...params, ..._params };
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2021-05-21 16:47:26 +08:00
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2021-05-13 11:03:32 +08:00
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config.params = params;
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config.header.accessToken = accessToken;
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2021-06-08 18:46:25 +08:00
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console.log(accessToken);
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/**
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* jwt 因为安卓以及ios没有window的属性
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* window.atob()这个函数 base64编码的使用方法就是btoa(),而用于解码的使用方法是atob(),
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* 所以使用手写 base-64 编码的字符串数据。
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*/
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//
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const atob = (str) => Buffer.from(str, "base64").toString("binary");
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// 判断如果过期时间小于我的当前时间,在请求上重新刷新token
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if (accessToken.split(".").length <= 1) {
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refresh();
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} else {
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if (
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JSON.parse(atob(accessToken.split(".")[1])).exp <
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new Date().getTime() / 1000
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) {
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refresh();
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}
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}
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2021-05-13 11:03:32 +08:00
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}
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config.header = {
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...config.header,
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uuid: storage.getUuid() || uuid.v1(),
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};
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return config;
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},
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(config) => {
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return Promise.reject(config);
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}
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);
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2021-06-08 18:46:25 +08:00
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async function refresh() {
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// 本地储存的是过期token了,重新获取
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const getTokenResult = await refreshToken();
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// if (getTokenResult === "success") {
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// // 获取新的token成功 刷新当前页面
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// let routes = getCurrentPages(); // 获取当前打开过的页面路由数组
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// let curRoute = routes[routes.length - 1].route; //获取当前页面路由
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// let curParam = routes[routes.length - 1].options; //获取路由参数
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// // 拼接参数
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// let param = "";
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// for (let key in curParam) {
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// param += "&" + key + "=" + curParam[key];
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// }
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// // 判断当前路径
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// if (curRoute.indexOf("pages/tabbar") == 1) {
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// uni.switchTab({
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// url: "/" + curRoute + param.replace("&", "?"),
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// });
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// }
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// uni.redirectTo({
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// url: "/" + curRoute + param.replace("&", "?"),
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// });
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// }
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}
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2021-05-13 11:03:32 +08:00
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// 必须使用异步函数,注意
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http.interceptors.response.use(
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async (response) => {
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/* 请求之后拦截器。可以使用async await 做异步操作 */
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// token存在并且token过期
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let token = storage.getAccessToken();
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2021-05-17 18:19:26 +08:00
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2021-06-07 11:15:47 +08:00
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if (
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(token && response.statusCode === 403) ||
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response.data.status === 403
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) {
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2021-05-13 11:03:32 +08:00
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// jwt token 过期了
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expireToken.push(token); // 把过期token 储存
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const currentToken = storage.getAccessToken();
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if (expireToken.includes(currentToken)) {
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2021-06-08 18:46:25 +08:00
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refresh();
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2021-05-13 11:03:32 +08:00
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}
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2021-05-17 18:19:26 +08:00
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// 如果当前返回没登录
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2021-06-07 11:15:47 +08:00
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} else if (
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(!token && response.statusCode === 403) ||
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response.data.code === 403
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) {
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2021-05-13 11:03:32 +08:00
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cleanStorage();
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2021-05-17 18:19:26 +08:00
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// 如果当前状态码为正常但是success为不正常时
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2021-06-07 11:15:47 +08:00
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} else if (
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(response.statusCode == 200 && !response.data.success) ||
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response.statusCode == 400
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) {
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if (response.data.message) {
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uni.showToast({
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title: response.data.message,
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icon: "none",
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duration: 1500,
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});
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}
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2021-05-13 11:03:32 +08:00
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}
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return response;
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},
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(error) => {
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2021-05-21 16:47:26 +08:00
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return error;
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2021-05-13 11:03:32 +08:00
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}
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);
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export { http };
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export const Method = {
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GET: "GET",
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POST: "POST",
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PUT: "PUT",
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DELETE: "DELETE",
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};
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