ZacharyZhang-NYandClaude
6b28c54e33
The worker reads the newest release and download counts from GitHub's API, with an optional GITHUB_TOKEN secret for the rate limit. Download links go to GitHub's latest release, and the source link wears the GitHub mark. The "not notarized" notice goes: macOS builds are signed and notarized now. Co-Authored-By: Claude <noreply@anthropic.com>
56 lines
2.2 KiB
TypeScript
56 lines
2.2 KiB
TypeScript
// Answers /release.json with the newest release and downloads.
|
|
const REPO = "https://api.github.com/repos/ELY-Open-Source/ElyOffice";
|
|
const PAGE = 100;
|
|
|
|
type Cached = RequestInit & { cf: { cacheTtl: number; cacheEverything: boolean } };
|
|
type Asset = { name: string; download_count: number };
|
|
type Release = { tag_name: string; assets: Asset[] };
|
|
// A token lifts GitHub's limit for the shared egress addresses: `wrangler secret put GITHUB_TOKEN`.
|
|
type Env = { GITHUB_TOKEN?: string };
|
|
|
|
async function read<T>(env: Env, path: string): Promise<T> {
|
|
const headers: Record<string, string> = {
|
|
accept: "application/vnd.github+json",
|
|
"user-agent": "ely-office-site",
|
|
"x-github-api-version": "2022-11-28",
|
|
};
|
|
if (env.GITHUB_TOKEN) headers.authorization = `Bearer ${env.GITHUB_TOKEN}`;
|
|
const init: Cached = { headers, cf: { cacheTtl: 300, cacheEverything: true } };
|
|
const res = await fetch(`${REPO}${path}`, init);
|
|
if (!res.ok) throw new Error(`GitHub answered ${res.status} for ${path}`);
|
|
return (await res.json()) as T;
|
|
}
|
|
|
|
/** The newest release's version, without the v. */
|
|
async function version(env: Env): Promise<string> {
|
|
const { tag_name: tag } = await read<Release>(env, "/releases/latest");
|
|
if (!/^v\d+\.\d+\.\d+$/.test(tag)) throw new Error(`GitHub's latest tag is ${JSON.stringify(tag)}`);
|
|
return tag.slice(1);
|
|
}
|
|
|
|
/** Downloads of every release; update manifests are checks, not downloads. */
|
|
async function downloads(env: Env): Promise<number> {
|
|
let total = 0;
|
|
for (let page = 1; ; page++) {
|
|
const releases = await read<Release[]>(env, `/releases?per_page=${PAGE}&page=${page}`);
|
|
for (const { assets } of releases) {
|
|
for (const a of assets) {
|
|
if (!Number.isInteger(a.download_count)) throw new Error(`${a.name} has no download count`);
|
|
if (!a.name.endsWith(".json")) total += a.download_count;
|
|
}
|
|
}
|
|
if (releases.length < PAGE) return total;
|
|
}
|
|
}
|
|
|
|
export default {
|
|
async fetch(_request: Request, env: Env): Promise<Response> {
|
|
try {
|
|
const [v, n] = await Promise.all([version(env), downloads(env)]);
|
|
return Response.json({ version: v, downloads: n }, { headers: { "cache-control": "public, max-age=300" } });
|
|
} catch (e) {
|
|
return new Response(String(e), { status: 502 });
|
|
}
|
|
},
|
|
};
|