dezoomify-cloudflare-worker.js

/**
 * This is a cloudflare worker for dezoomify
 */


/**
 * Respond to the request
 * @param {Request} request
 */
async function handleRequest(request) {
    const url = new URL(request.url);
    const target_url = new URL(url.searchParams.get("url"));
    let target_request = new Request(target_url, request);
    target_request.headers.set("Origin", target_url.origin);
    target_request.headers.set("Cookie", url.searchParams.get("Cookies").replace(/\n/, ''));
    let response = await fetch(target_url);
    response = new Response(response.body, response);
    response.headers.set("X-Set-Cookie", response.headers.get("Set-Cookie"));
    response.headers.delete("Set-Cookie");
    return response;
}

/**
 * Handle a fetch event
 * @param {Error} error
 */
async function handleError(error) {
  console.error(error);
  return new Response(error.toString(), {status:500});
}

addEventListener('fetch', evt => {
    const req = evt.request;
    console.log(req.url);
    let response = handleRequest(req).catch(handleError);
    evt.respondWith(response);
});