42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
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const CACHE = 'v1';
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const LOGIN = '/login.html';
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self.addEventListener('install', () => self.skipWaiting());
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self.addEventListener('activate', e => e.waitUntil(self.clients.claim()));
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self.addEventListener('fetch', e => {
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const req = e.request;
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if (req.url.includes('/login.html') || req.url.includes('/auth/')) {
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e.respondWith(fetch(req));
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return;
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}
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e.respondWith((async () => {
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const token = self.__auth_token;
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if (!token) {
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// 尝试从 IndexedDB/localStorage 读取（SW 中无法直接访问 localStorage）
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// 依赖客户端页面消息传递 token
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return fetch(req);
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}
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const headers = new Headers(req.headers);
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headers.set('Authorization', 'Basic ' + token);
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const res = await fetch(new Request(req, { headers }));
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if (res.status === 401) {
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return Response.redirect(LOGIN, 302);
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}
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return res;
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})());
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});
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// 接收页面发来的 token
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self.addEventListener('message', e => {
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if (e.data && e.data.type === 'SET_TOKEN') {
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self.__auth_token = e.data.token;
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}
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if (e.data && e.data.type === 'CLEAR_TOKEN') {
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self.__auth_token = null;
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}
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});
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