32 lines
1.6 KiB
JavaScript
32 lines
1.6 KiB
JavaScript
// App-shell cache only; Seafile/API traffic always goes to the network.
|
|
const CACHE = 'hub-v7';
|
|
const SHELL = ['/icon.svg', '/manifest.webmanifest', '/icons/icon-192.png', '/icons/apple-touch-icon.png'];
|
|
|
|
// Install: keep the icons, and (when signed in) the page itself with the scripts and styles it names, so the app opens offline.
|
|
async function precache() {
|
|
const c = await caches.open(CACHE);
|
|
await c.addAll(SHELL);
|
|
try {
|
|
const r = await fetch('/', { credentials: 'same-origin', redirect: 'manual' });
|
|
if (r.ok) {
|
|
const html = await r.clone().text();
|
|
await c.put('/', r);
|
|
const urls = [...html.matchAll(/(?:src|href)="(\/[^"]+\.(?:js|css)(?:\?[^"]*)?)"/g)].map(m => m[1]);
|
|
await Promise.all(urls.map(u => c.add(u).catch(() => {})));
|
|
}
|
|
} catch { /* signed out or offline: it is cached the first time it is used */ }
|
|
}
|
|
self.addEventListener('install', e => { e.waitUntil(precache()); self.skipWaiting(); });
|
|
self.addEventListener('activate', e => {
|
|
e.waitUntil(caches.keys().then(ks => Promise.all(ks.filter(k => k !== CACHE).map(k => caches.delete(k)))));
|
|
self.clients.claim();
|
|
});
|
|
self.addEventListener('fetch', e => {
|
|
const u = new URL(e.request.url);
|
|
if (e.request.method !== 'GET' || u.origin !== location.origin || u.pathname.startsWith('/sf/') || u.pathname.startsWith('/plex/') || u.pathname.startsWith('/webmail') || u.pathname.startsWith('/api/')) return;
|
|
e.respondWith(fetch(e.request).then(r => {
|
|
if (r.ok) { const copy = r.clone(); caches.open(CACHE).then(c => c.put(e.request, copy)); }
|
|
return r;
|
|
}).catch(() => caches.match(e.request)));
|
|
});
|