124 lines
5.3 KiB
JavaScript
124 lines
5.3 KiB
JavaScript
const CONTENT_CACHE_NAME = "healer-man-content-v1";
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const OBJECT_HEADER = "x-healer-man-content-object";
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const ENCODING_HEADER = "x-healer-man-content-encoding";
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let bundledManifest;
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function mimeType(path) {
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const extension = path.split(".").pop();
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return ({ glb: "model/gltf-binary", json: "application/json", js: "text/javascript", wasm: "application/wasm",
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ktx2: "image/ktx2", png: "image/png", webp: "image/webp", avif: "image/avif", svg: "image/svg+xml",
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mp3: "audio/mpeg", ogg: "audio/ogg", wav: "audio/wav", webm: "video/webm" })[extension] ?? "application/octet-stream";
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}
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async function decodedResponse(response, path, encoding) {
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if (encoding !== "gzip") return response;
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const headers = new Headers(response.headers);
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headers.set("content-type", mimeType(path));
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headers.delete("content-length");
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headers.delete("content-encoding");
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headers.delete(ENCODING_HEADER);
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return new Response(response.body.pipeThrough(new DecompressionStream("gzip")), { status: 200, headers });
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}
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async function bundledAsset(path) {
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if (!bundledManifest) {
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bundledManifest = fetch("/content/bootstrap-manifest.json", { cache: "no-cache" })
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.then((response) => response.ok ? response.json() : null)
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.catch(() => null);
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}
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const manifest = await bundledManifest;
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if (!manifest) { bundledManifest = null; return null; }
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const entry = manifest.files?.[path];
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if (!entry) return null;
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const object = entry.download ?? entry;
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// Older bootstrap catalogs served their original logical paths directly.
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if (!object.url.startsWith("/content/bundled/")) return fetch(path);
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const response = await fetch(object.url);
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if (!response.ok) return response;
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if (entry.download) return decodedResponse(response, path, entry.download.encoding);
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return new Response(response.body, { headers: { "content-type": mimeType(path) } });
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}
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const MANAGED_ASSET_PREFIXES = [
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"/assets/characters/",
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"/assets/creatures/",
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"/assets/equipment/",
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"/assets/game/",
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"/assets/ui/",
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"/basis/",
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"/data/",
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];
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const BUNDLED_ASSET_PREFIXES = [
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"/assets/ui/",
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"/assets/equipment/",
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"/assets/characters/wow335a-v1/manifest.json",
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"/assets/characters/wow335a-v1/human/",
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"/assets/creatures/wailing-caverns/",
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"/assets/game/arenas/",
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"/assets/game/dungeons/wailing-caverns/",
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];
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const BUNDLED_ASSET_PATHS = new Set([
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"/assets/characters/wow335a-v1/textures/character/human/faciallowerhair00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/facialupperhair00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/female/humanfemalefacelower00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/female/humanfemalefaceupper00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/female/humanfemalenakedpelvisskin00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/female/humanfemalenakedtorsoskin00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/female/humanfemaleskin00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/hair00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/male/humanmalefacelower00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/male/humanmalefaceupper00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/male/humanmalenakedpelvisskin00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/male/humanmaleskin00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/scalplowerhair00_00.webp",
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"/assets/characters/wow335a-v1/textures/character/human/scalpupperhair00_00.webp",
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]);
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self.addEventListener("install", (event) => {
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event.waitUntil(self.skipWaiting());
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});
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self.addEventListener("message", (event) => {
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if (event.data?.type === "refresh-content-bootstrap") bundledManifest = null;
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil((async () => {
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const names = await caches.keys();
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await Promise.all(names
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.filter((name) => name.startsWith(`${CONTENT_CACHE_NAME}-staging-`))
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.map((name) => caches.delete(name)));
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await self.clients.claim();
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})());
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});
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self.addEventListener("fetch", (event) => {
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const { request } = event;
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if (request.method !== "GET") return;
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const url = new URL(request.url);
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if (url.origin !== self.location.origin
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|| !MANAGED_ASSET_PREFIXES.some((prefix) => url.pathname.startsWith(prefix))) return;
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event.respondWith((async () => {
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const cache = await caches.open(CONTENT_CACHE_NAME);
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const cached = await cache.match(request, { ignoreSearch: true });
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if (cached) {
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const objectPath = cached.headers.get(OBJECT_HEADER);
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if (!objectPath) return cached;
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if (objectPath.startsWith("/content/cache-objects/")) {
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const object = await cache.match(new URL(objectPath, self.location.origin).toString());
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if (object) return decodedResponse(object, url.pathname, object.headers.get(ENCODING_HEADER));
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}
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}
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const bundled = await bundledAsset(url.pathname);
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if (bundled) return bundled;
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if (BUNDLED_ASSET_PATHS.has(url.pathname)
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|| BUNDLED_ASSET_PREFIXES.some((prefix) => url.pathname.startsWith(prefix))) {
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return fetch(request);
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}
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return new Response("Optional content is not installed.", {
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status: 404,
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headers: { "content-type": "text/plain; charset=utf-8" },
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});
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})());
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});
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