75 lines
1.6 KiB
JavaScript
75 lines
1.6 KiB
JavaScript
---
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layout: compress
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# PWA service worker
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---
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self.importScripts('{{ "/assets/js/data/swcache.js" | relative_url }}');
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const cacheName = 'chirpy-{{ "now" | date: "%Y%m%d.%H%M" }}';
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function verifyDomain(url) {
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for (const domain of allowedDomains) {
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const regex = RegExp(`^http(s)?:\/\/${domain}\/`);
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if (regex.test(url)) {
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return true;
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}
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}
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return false;
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}
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function isExcluded(url) {
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for (const item of denyUrls) {
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if (url === item) {
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return true;
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}
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}
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return false;
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}
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self.addEventListener('install', e => {
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self.skipWaiting();
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e.waitUntil(
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caches.open(cacheName).then(cache => {
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return cache.addAll(resource);
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})
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);
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});
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self.addEventListener('fetch', e => {
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e.respondWith(
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caches.match(e.request).then(r => {
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/* console.log(`[sw] method: ${e.request.method}, fetching: ${e.request.url}`); */
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return r || fetch(e.request).then(response => {
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const url = e.request.url;
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if (e.request.method !== 'GET'
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|| !verifyDomain(url)
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|| isExcluded(url)) {
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return response;
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}
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return caches.open(cacheName).then(cache => {
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/* console.log('[sw] Caching new resource: ' + e.request.url); */
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cache.put(e.request, response.clone());
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return response;
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});
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});
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})
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);
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});
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self.addEventListener('activate', e => {
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e.waitUntil(
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caches.keys().then(keyList => {
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return Promise.all(
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keyList.map(key => {
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if(key !== cacheName) {
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return caches.delete(key);
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}
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})
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);
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})
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);
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});
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