2025-09-19 14:25:30 +02:00

93 lines
2.5 KiB
TypeScript

import { DEBUG } from '../config';
import { pause } from '../util/schedulers';
import { clearAssetCache, respondWithCache, respondWithCacheNetworkFirst } from './assetCache';
import { respondForDownload } from './download';
import { respondForProgressive } from './progressive';
import {
handleClientMessage as handleNotificationMessage,
handleNotificationClick,
handlePush,
} from './pushNotification';
import { handleClientMessage as handleShareMessage, respondForShare } from './share';
declare const self: ServiceWorkerGlobalScope;
const RE_NETWORK_FIRST_ASSETS = /\.(wasm|html)$/;
const RE_CACHE_FIRST_ASSETS = /[\da-f]{20}.*\.(js|css|woff2?|svg|png|jpg|jpeg|tgs|json|wasm)$/;
const ACTIVATE_TIMEOUT = 3000;
self.addEventListener('install', (e) => {
if (DEBUG) {
// eslint-disable-next-line no-console
console.log('ServiceWorker installed');
}
// Activate worker immediately
e.waitUntil(self.skipWaiting());
});
self.addEventListener('activate', (e) => {
if (DEBUG) {
// eslint-disable-next-line no-console
console.log('ServiceWorker activated');
}
e.waitUntil(
Promise.race([
// An attempt to fix freezing UI on iOS
pause(ACTIVATE_TIMEOUT),
Promise.all([
clearAssetCache(),
// Become available to all pages
self.clients.claim(),
]),
]),
);
});
self.addEventListener('fetch', (e: FetchEvent) => {
const { url } = e.request;
const { scope } = self.registration;
if (!url.startsWith(scope)) {
return false;
}
const { pathname, protocol } = new URL(url);
const { pathname: scopePathname } = new URL(scope);
if (pathname.includes('/progressive/')) {
e.respondWith(respondForProgressive(e));
return true;
}
if (pathname.includes('/download/')) {
e.respondWith(respondForDownload(e));
return true;
}
if (pathname.includes('/share/')) {
e.respondWith(respondForShare(e));
}
if (protocol === 'http:' || protocol === 'https:') {
if (pathname === scopePathname || pathname.match(RE_NETWORK_FIRST_ASSETS)) {
e.respondWith(respondWithCacheNetworkFirst(e));
return true;
}
if (pathname.match(RE_CACHE_FIRST_ASSETS)) {
e.respondWith(respondWithCache(e));
return true;
}
}
return false;
});
self.addEventListener('push', handlePush);
self.addEventListener('notificationclick', handleNotificationClick);
self.addEventListener('message', (event) => {
handleNotificationMessage(event);
handleShareMessage(event);
});