- import { freeStorage } from '../storage/modifier';
- import './web_push_notifications';
-
- function openSystemCache() {
- return caches.open('mastodon-system');
- }
-
- function openWebCache() {
- return caches.open('mastodon-web');
- }
-
- function fetchRoot() {
- return fetch('/', { credentials: 'include' });
- }
-
- // Cause a new version of a registered Service Worker to replace an existing one
- // that is already installed, and replace the currently active worker on open pages.
- self.addEventListener('install', function(event) {
- event.waitUntil(Promise.all([openWebCache(), fetchRoot()]).then(([cache, root]) => cache.put('/', root)));
- });
- self.addEventListener('activate', function(event) {
- event.waitUntil(self.clients.claim());
- });
- self.addEventListener('fetch', function(event) {
- const url = new URL(event.request.url);
-
- if (url.pathname.startsWith('/web/')) {
- const asyncResponse = fetchRoot();
- const asyncCache = openWebCache();
-
- event.respondWith(asyncResponse.then(response => {
- if (response.ok) {
- return asyncCache.then(cache => cache.put('/', response))
- .then(() => response.clone());
- }
-
- throw null;
- }).catch(() => asyncCache.then(cache => cache.match('/'))));
- } else if (url.pathname === '/auth/sign_out') {
- const asyncResponse = fetch(event.request);
- const asyncCache = openWebCache();
-
- event.respondWith(asyncResponse.then(response => {
- if (response.ok || response.type === 'opaqueredirect') {
- return Promise.all([
- asyncCache.then(cache => cache.delete('/')),
- indexedDB.deleteDatabase('mastodon'),
- ]).then(() => response);
- }
-
- return response;
- }));
- } else if (process.env.CDN_HOST ? url.host === process.env.CDN_HOST : url.pathname.startsWith('/system/')) {
- event.respondWith(openSystemCache().then(cache => {
- return cache.match(event.request.url).then(cached => {
- if (cached === undefined) {
- return fetch(event.request).then(fetched => {
- if (fetched.ok) {
- const put = cache.put(event.request.url, fetched.clone());
-
- put.catch(() => freeStorage());
-
- return put.then(() => {
- freeStorage();
- return fetched;
- });
- }
-
- return fetched;
- });
- }
-
- return cached;
- });
- }));
- }
- });
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