2022-04-24 17:24:27 +02:00
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const { v4: uuid } = require("uuid");
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var serve = require("koa-static");
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const Koa = require("koa");
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const Router = require("@koa/router");
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const mount = require("koa-mount");
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const qs = require("qs");
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const { Readable } = require("stream");
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const { spawn } = require("child_process");
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const router = new Router();
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// response
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const app = new Koa();
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const static = new Koa();
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static.use(serve("./static"));
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app.use(mount("/static", static));
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function attach(docker_id, output_stream) {
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// to prevent browser timeout
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const interval = setInterval(() => output_stream.push("<span></span>"), 500);
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const task = spawn("docker", ["logs", "-f", docker_id]);
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2022-04-24 19:57:01 +02:00
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task.stdout.on("data", (d) => {
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output_stream.push(d);
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console.log("DATA!", d.toString());
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});
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2022-04-24 20:04:45 +02:00
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task.stderr.on("data", (d) => {
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/* output_stream.push(d); */
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console.log("STDERR!", d.toString());
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});
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2022-04-24 19:57:01 +02:00
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task.stdout.on("error", (d) => {
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output_stream.push(d);
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});
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2022-04-24 17:24:27 +02:00
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task.on("close", () => {
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2022-04-24 20:35:24 +02:00
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output_stream.push("</pre>");
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output_stream.push(/* HTML */ `<script>
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clearInterval(window.interval);
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</script>`);
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clearInterval(interval);
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output_stream.push(null);
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2022-04-24 17:24:27 +02:00
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});
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}
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router.get("/", async (ctx) => {
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const s = new Readable({ read() {} });
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// stream data
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ctx.response.set("content-type", "txt/html");
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ctx.type = "html"; // <-- THIS is the important step!
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ctx.body = s;
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ctx.body.push("<!doctype html>");
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2022-04-24 19:57:01 +02:00
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const id = uuid();
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ctx.body.push(
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`<img id="preview" width="1080" height="608" src="/static/${id}/preview.png?id=0"/><br/>`
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);
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ctx.body.push(/* HTML */ `<script>
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2022-04-24 20:35:24 +02:00
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window.interval = setInterval(() => (preview.src = preview.src + "0"), 500);
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2022-04-24 19:57:01 +02:00
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</script>`);
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2022-04-24 17:24:27 +02:00
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const params = qs.parse(ctx.querystring);
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s.push(`Got request to screenshot ${params.url}<pre>`);
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let docker_id = "";
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2022-04-24 18:58:08 +02:00
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if (!params.url) {
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ctx.body = "specify url!";
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return;
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}
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2022-04-24 17:24:27 +02:00
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const starter = spawn(
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"docker",
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[
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"run",
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"-i",
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"-d",
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"-v",
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`${process.cwd()}/static:/opt/static`,
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"headless-fox",
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"./script3.sh",
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2022-04-24 18:58:54 +02:00
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`{"url": "${params.url}", "third_party_domains": ["hotjar.com", "cookielaw.org", "facebook.com", "gemius.pl"]}`,
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2022-04-24 17:24:27 +02:00
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id,
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],
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{ cwd: process.cwd() }
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);
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starter.stdout.on("data", (data) => {
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docker_id += data.toString().replace(/\n/g, "");
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});
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starter.on("close", () => {
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ctx.body.push("spawned " + docker_id);
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attach(docker_id, ctx.body);
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});
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});
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app.use(router.routes()).use(router.allowedMethods());
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app.listen(3000);
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