50 lines
2.1 KiB
JavaScript
50 lines
2.1 KiB
JavaScript
App({
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globalData: { token: "", user: null, expiresAt: 0 },
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onLaunch() {
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this.globalData.token = wx.getStorageSync("pet_token") || "";
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this.globalData.expiresAt = Number(wx.getStorageSync("pet_token_expires_at")) || 0;
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// Start immediately; pages await the same promise and display failures themselves.
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this.login().catch(() => {});
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},
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async login() {
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if (this.loginPromise) return this.loginPromise;
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if (this.globalData.token && (!this.globalData.expiresAt || this.globalData.expiresAt > Date.now() / 1000 + 60)) return this.globalData.token;
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this.loginPromise = (async () => {
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const { request } = require("./utils/api");
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const refreshToken = wx.getStorageSync("pet_refresh_token");
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if (refreshToken) {
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try {
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const pair = await request("/auth/refresh", "POST", { refresh_token: refreshToken }, false);
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return this.saveSession(pair);
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} catch (error) {
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if (error.status !== 401 && error.status !== 403) throw error;
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wx.removeStorageSync("pet_refresh_token");
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}
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}
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const { code } = await new Promise((resolve, reject) =>
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wx.login({
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timeout: 10000,
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success: resolve,
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fail: () => reject(new Error("暂时无法连接微信，请重新连接")),
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}),
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);
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if (!code) throw new Error("微信登录未取得凭证，请重新连接");
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const data = await request("/auth/login", "POST", { code }, false);
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this.globalData.user = data.user;
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return this.saveSession(data);
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})().finally(() => {
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this.loginPromise = null;
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});
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return this.loginPromise;
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},
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saveSession(data) {
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if (!data || typeof data.token !== "string" || !data.token) throw new Error("登录未完成，请重新连接");
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this.globalData.token = data.token;
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this.globalData.expiresAt = Number(data.expires_at) || 0;
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wx.setStorageSync("pet_token", data.token);
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wx.setStorageSync("pet_token_expires_at", this.globalData.expiresAt);
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if (data.refresh_token) wx.setStorageSync("pet_refresh_token", data.refresh_token);
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return data.token;
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},
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});
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