更新包

-- [CST 2026-08-04 Tuesday 16:05:05]
2026-08-04 16:05:05 +08:00
commit f839e19947
112 changed files with 63309 additions and 0 deletions
@@ -0,0 +1,110 @@
+const CACHE_VERSION = '2026-07-17-v1';
+const CACHE_PREFIX = 'bis-blog-';
+const CORE_CACHE = `${CACHE_PREFIX}core-${CACHE_VERSION}`;
+const PAGE_CACHE = `${CACHE_PREFIX}pages-${CACHE_VERSION}`;
+const ASSET_CACHE = `${CACHE_PREFIX}assets-${CACHE_VERSION}`;
+const IMAGE_CACHE = `${CACHE_PREFIX}images-${CACHE_VERSION}`;
+
+const CORE_ASSETS = [
+  '/',
+  '/offline.html',
+  '/manifest.webmanifest',
+  '/images/Bi.ico',
+  '/images/pwa-192x192.png',
+  '/images/pwa-512x512.png',
+  '/images/pwa-maskable-512x512.png',
+  '/images/apple-touch-icon.png',
+];
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(CORE_CACHE)
+      .then((cache) => cache.addAll(CORE_ASSETS))
+  );
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil((async () => {
+    const cacheNames = await caches.keys();
+    await Promise.all(
+      cacheNames
+        .filter((name) => name.startsWith(CACHE_PREFIX) && ![CORE_CACHE, PAGE_CACHE, ASSET_CACHE, IMAGE_CACHE].includes(name))
+        .map((name) => caches.delete(name))
+    );
+    await self.clients.claim();
+    const clients = await self.clients.matchAll({ type: 'window' });
+    clients.forEach((client) => client.postMessage({ type: 'OFFLINE_READY' }));
+  })());
+});
+
+self.addEventListener('message', (event) => {
+  if (event.data?.type === 'SKIP_WAITING') self.skipWaiting();
+});
+
+async function trimCache(cacheName, maxEntries) {
+  const cache = await caches.open(cacheName);
+  const keys = await cache.keys();
+  if (keys.length > maxEntries) {
+    await Promise.all(keys.slice(0, keys.length - maxEntries).map((key) => cache.delete(key)));
+  }
+}
+
+async function networkFirst(request) {
+  try {
+    const response = await fetch(request);
+    if (response.ok) {
+      const cache = await caches.open(PAGE_CACHE);
+      await cache.put(request, response.clone());
+      void trimCache(PAGE_CACHE, 40);
+    }
+    return response;
+  } catch {
+    return (await caches.match(request)) || (await caches.match('/offline.html'));
+  }
+}
+
+async function cacheFirst(request, cacheName, maxEntries) {
+  const cached = await caches.match(request);
+  if (cached) return cached;
+
+  const response = await fetch(request);
+  if (response.ok || response.type === 'opaque') {
+    const cache = await caches.open(cacheName);
+    await cache.put(request, response.clone());
+    void trimCache(cacheName, maxEntries);
+  }
+  return response;
+}
+
+async function staleWhileRevalidate(request) {
+  const cache = await caches.open(ASSET_CACHE);
+  const cached = await cache.match(request);
+  const network = fetch(request).then((response) => {
+    if (response.ok) cache.put(request, response.clone());
+    return response;
+  }).catch(() => cached);
+  return cached || network;
+}
+
+self.addEventListener('fetch', (event) => {
+  const { request } = event;
+  if (request.method !== 'GET') return;
+
+  const url = new URL(request.url);
+  if (request.mode === 'navigate') {
+    event.respondWith(networkFirst(request));
+    return;
+  }
+
+  if (request.destination === 'image') {
+    event.respondWith(cacheFirst(request, IMAGE_CACHE, 100));
+    return;
+  }
+
+  if (
+    url.origin === self.location.origin &&
+    ['style', 'script', 'font', 'worker'].includes(request.destination)
+  ) {
+    event.respondWith(staleWhileRevalidate(request));
+  }
+});