core / webmeister / gethtml.mjs

import WebSocket from "ws"; import { get } from "http"; const getTargets = () => new Promise((resolve, reject) => { get("http://host.docker.internal:9222/json", { headers: { Host: "localhost" } }, (res) => { let data = ""; res.on("data", chunk => data += chunk); res.on("end", () => resolve(JSON.parse(data))); }).on("error", reject); }); const targets = await getTargets(); const page = targets[0]; const ws = new WebSocket("ws://host.docker.internal:9222/devtools/page/" + page.id, { headers: { Host: "localhost" } }); let id = 1; const send = (method, params = {}) => new Promise((resolve) => { const msgId = id++; ws.once("message", (data) => resolve(JSON.parse(data).result)); ws.send(JSON.stringify({ id: msgId, method, params })); }); ws.on("open", async () => { const result = await send("Runtime.evaluate", { expression: "document.body.innerHTML.substring(0, 5000)", returnByValue: true }); console.log(result.result.value); ws.close(); });