import { blob } from "https://esm.town/v/std/blob"; import { to } from "npm:await-to-js"; export default async function server(request: Request): Promise { const url = new URL(request.url); const parts = url.pathname.split("/").filter(Boolean); if (parts.length !== 4) { return renderFallbackPage(request.url); } const [owner, repo, releaseVersion, file] = parts; const cacheKey = `${owner}/${repo}/${releaseVersion}/${file}`; // Try to get the file from the cache const [_, cachedFile] = await to(blob.get(cacheKey)); if (cachedFile) { return serveFile(await cachedFile.blob(), file); } // If not in cache, fetch from GitHub const releaseUrl = `https://github.com/${owner}/${repo}/releases/download/${releaseVersion}/${file}`; const assetRes = await fetch(releaseUrl); if (!assetRes.ok) { return new Response("Release not found", { status: 404 }); } const asset = await assetRes.blob(); if (!asset) { return new Response("File not found in release", { status: 404 }); } // Cache the file await blob.set(cacheKey, asset); return serveFile(asset, file); } function serveFile(content: Blob, filename: string): Response { const contentType = getContentType(filename); return new Response(content, { headers: { "Content-Type": contentType, "Content-Disposition": `inline; filename="${filename}"`, }, }); } function getContentType(filename: string): string { const ext = filename.split(".").pop()?.toLowerCase(); const contentTypes: Record = { "ts": "text/plain", "txt": "text/plain", "html": "text/html", "css": "text/css", "js": "application/javascript", "wasm": "application/wasm", "json": "application/json", "png": "image/png", "jpg": "image/jpeg", "jpeg": "image/jpeg", "gif": "image/gif", "svg": "image/svg+xml", "pdf": "application/pdf", }; return contentTypes[ext ?? ""] || "application/octet-stream"; } function renderFallbackPage(currentUrl: string): Response { const html = ` GitHub Release File Server - Usage Guide

GitHub Release File Server

This service allows you to access files from GitHub releases. The correct URL format is:

/:owner/:repo/:releaseVersion/:file

Where:

owner: The GitHub username or organization name
repo: The repository name
releaseVersion: The tag name of the release
file: The filename of the asset in the release

Example:

${new URL(currentUrl).origin}/microsoft/vscode/1.60.0/vscode-server-linux-x64.tar.gz

This would fetch the file 'vscode-server-linux-x64.tar.gz' from the '1.60.0' release of the 'vscode' repository owned by 'microsoft'.

Please ensure your URL follows this format to access the desired file.

View source

`; return new Response(html, { headers: { "Content-Type": "text/html", }, status: 400, }); }

gh_releases

Version 0