index.js

/*
 * index.js
 * Copyright (C) 2021 andy <andy@andys-Air.lan>
 *
 * Distributed under terms of the MIT license.
 */
addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

function simpleResponse(statusCode, message) {
  let resp = {
    message: message,
    status: statusCode
  }

  return new Response(JSON.stringify(resp), {
    headers: {"Content-Type": "application/json"},
    status: statusCode
  })
}

MIRROR_URL = "https://cdn.npmmirror.com/binaries/python"
// MIRROR_URL = "https://repo.huaweicloud.com/python"

/**
 * Respond to the request
 * @param {Request} request
 */
async function handleRequest(request) {
  const url = new URL(request.url)
  sha2name = url.pathname.replace("/", "")
  config = JSON.parse(await PYENV_PROXY.get("config"))
  if (config[sha2name]) {
    version = config[sha2name][0]
    suffix = config[sha2name][1]
    return Response.redirect(MIRROR_URL + "/" + version + "/Python-" + version + "." + suffix, 301)
  }

  return simpleResponse(404, "Not Found.")
}