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78 lines
2.6 KiB
78 lines
2.6 KiB
// import { freeStorage, storageFreeable } from '../storage/modifier';
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import './web_push_notifications';
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// function openSystemCache() {
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// return caches.open('mastodon-system');
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// }
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function openWebCache() {
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return caches.open('mastodon-web');
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}
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function fetchRoot() {
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return fetch('/', { credentials: 'include', redirect: 'manual' });
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}
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// const firefox = navigator.userAgent.match(/Firefox\/(\d+)/);
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// const invalidOnlyIfCached = firefox && firefox[1] < 60;
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// Cause a new version of a registered Service Worker to replace an existing one
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// that is already installed, and replace the currently active worker on open pages.
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self.addEventListener('install', function(event) {
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event.waitUntil(Promise.all([openWebCache(), fetchRoot()]).then(([cache, root]) => cache.put('/', root)));
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});
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self.addEventListener('activate', function(event) {
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event.waitUntil(self.clients.claim());
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});
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self.addEventListener('fetch', function(event) {
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const url = new URL(event.request.url);
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if (url.pathname.startsWith('/web/')) {
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const asyncResponse = fetchRoot();
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const asyncCache = openWebCache();
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event.respondWith(asyncResponse.then(
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response => {
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const clonedResponse = response.clone();
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asyncCache.then(cache => cache.put('/', clonedResponse)).catch();
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return response;
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},
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() => asyncCache.then(cache => cache.match('/'))));
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} else if (url.pathname === '/auth/sign_out') {
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const asyncResponse = fetch(event.request);
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const asyncCache = openWebCache();
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event.respondWith(asyncResponse.then(response => {
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if (response.ok || response.type === 'opaqueredirect') {
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return Promise.all([
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asyncCache.then(cache => cache.delete('/')),
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indexedDB.deleteDatabase('mastodon'),
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]).then(() => response);
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}
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return response;
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}));
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} /* else if (storageFreeable && (ATTACHMENT_HOST ? url.host === ATTACHMENT_HOST : url.pathname.startsWith('/system/'))) {
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event.respondWith(openSystemCache().then(cache => {
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return cache.match(event.request.url).then(cached => {
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if (cached === undefined) {
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const asyncResponse = invalidOnlyIfCached && event.request.cache === 'only-if-cached' ?
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fetch(event.request, { cache: 'no-cache' }) : fetch(event.request);
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return asyncResponse.then(response => {
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if (response.ok) {
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cache
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.put(event.request.url, response.clone())
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.catch(()=>{}).then(freeStorage()).catch();
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}
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return response;
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});
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}
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return cached;
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});
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}));
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} */
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});
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