cyio/proxy.worker.js

## proxy.worker.js
addEventListener("fetch", (event) => {
  event.respondWith(
    handleRequest(event.request).catch(
      (err) => new Response(err.stack, { status: 500 })
    )
  );
});

async function handleRequest(request) {
  console.log(`${request.method} ${request.url}`)

  const sendRequest = async (url) => {
    let response = await fetch(new Request(url, {
      body: request.body,
      headers: request.headers,
      method: request.method,
      redirect: "follow",
    }))
    let { readable, writable } = new TransformStream()
    response.body.pipeTo(writable)
    return new Response(readable, response)
  }

  const { pathname, searchParams } = new URL(request.url)

  if (pathname.startsWith("/http")) {
    let url = pathname.slice(1).replace("http:/", "http://").replace("https:/", "https://")
    return await sendRequest(url)
  }

  if (searchParams.get("url")?.startsWith("http")) {
    return await sendRequest(searchParams.get("url"))
  }

  return new Response(
    SearchPage,
    {
      headers: { "Content-Type": "text/html" },
      status: 404,
    }
  )
}

const SearchPage = `<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Proxy | Created by aber</title>
</head>

<body>
    <form>
        <div>
            <input name="url" type="url" />
            <button type="submit">→</button>
        </div>
    </form>
    <style>
        body {
            background-color: #fafafa;
        }

        form {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            margin-top: 100px;
        }

        div {
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: center;
            border: solid 1px #fafafa;
            box-shadow: 0 0 10px #eee;
        }

        input {
            width: calc(240px + 7vw);
            height: 40px;
            border-radius: 0px;
            border: none;
            outline: none;
            padding: 0 10px;
            flex: 1;
        }

        button {
            width: 50px;
            height: 40px;
            border-radius: 0px;
            border: none;
            background-color: #fff;
            color: #000;
            font-size: 16px;
            cursor: pointer;
        }
    </style>
</body>

</html>
`
	addEventListener("fetch", (event) => {
	event.respondWith(
	handleRequest(event.request).catch(
	(err) => new Response(err.stack, { status: 500 })
	)
	);
	});

	async function handleRequest(request) {
	console.log(`${request.method} ${request.url}`)

	const sendRequest = async (url) => {
	let response = await fetch(new Request(url, {
	body: request.body,
	headers: request.headers,
	method: request.method,
	redirect: "follow",
	}))
	let { readable, writable } = new TransformStream()
	response.body.pipeTo(writable)
	return new Response(readable, response)
	}

	const { pathname, searchParams } = new URL(request.url)

	if (pathname.startsWith("/http")) {
	let url = pathname.slice(1).replace("http:/", "http://").replace("https:/", "https://")
	return await sendRequest(url)
	}

	if (searchParams.get("url")?.startsWith("http")) {
	return await sendRequest(searchParams.get("url"))
	}

	return new Response(
	SearchPage,
	{
	headers: { "Content-Type": "text/html" },
	status: 404,
	}
	)
	}

	const SearchPage = `<!DOCTYPE html>
	<html>

	<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Proxy \| Created by aber</title>
	</head>

	<body>
	<form>
	<div>
	<input name="url" type="url" />
	<button type="submit">→</button>
	</div>
	</form>
	<style>
	body {
	background-color: #fafafa;
	}

	form {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	margin-top: 100px;
	}

	div {
	display: flex;
	flex-direction: row;
	align-items: center;
	justify-content: center;
	border: solid 1px #fafafa;
	box-shadow: 0 0 10px #eee;
	}

	input {
	width: calc(240px + 7vw);
	height: 40px;
	border-radius: 0px;
	border: none;
	outline: none;
	padding: 0 10px;
	flex: 1;
	}

	button {
	width: 50px;
	height: 40px;
	border-radius: 0px;
	border: none;
	background-color: #fff;
	color: #000;
	font-size: 16px;
	cursor: pointer;
	}
	</style>
	</body>

	</html>
	`