gistfile1.txt

const //imports

  fs = require("fs"),
  totp = require("totp-generator"),
  fetch = require("node-fetch");

const api = "https://vrchat.com/api/1";
const ua = "bap bap@bap.bap";
const cookiePath = "auth.cookie";

const app = async (_) => {
  let authCookie = fs.existsSync(cookiePath)
    ? fs.readFileSync(cookiePath, "utf-8")
    : void 0;

  if (authCookie) {
    console.log("Trying to login with stored cookie...")
    const loginResult = await fetch(api + "/auth/user", {
      headers: {
        accept: "*/*",
        Cookie: authCookie,
        "user-agent": ua,
        "content-type": "application/json",
      },
      referrer: "https://vrchat.com/home/twofactorauth",
      referrerPolicy: "strict-origin-when-cross-origin",
      body: null,
      method: "GET",
      mode: "cors",
      credentials: "include",
    });
    if (loginResult.status === 200) {
      var user = await loginResult.json();
      console.log("logged in as", `${user.username}(${user.displayName})`);
      // fs.writeFileSync(cookiePath, authCookie);
    } else {
      console.log("login failed", loginResult)
      fs.unlinkSync(cookiePath)
    }
  } else {
    const loginRes = await fetch(api + "/auth/user", {
      headers: {
        "user-agent": ua,
        authorization:
          "Basic " +
          Buffer.from(
            `${process.env.VRC_USERNAME}:${process.env.VRC_PASSWORD}`
          ).toString("base64"),
      },

      accept: "*/*",
      "user-agent": ua,
      "content-type": "application/json",

      method: "GET",
      mode: "cors",
      credentials: "include",
    });
    const authCookie = loginRes.headers.get("set-cookie");

    const token = totp(process.env.VRC_2FA_SECRET);
    const verify2fa = await fetch(api + "/auth/twofactorauth/totp/verify", {
      headers: {
        accept: "*/*",
        "user-agent": ua,
        "content-type": "application/json",
        Cookie: authCookie,
      },
      referrer: "https://vrchat.com/home/twofactorauth",
      referrerPolicy: "strict-origin-when-cross-origin",
      body: JSON.stringify({ code: token }),
      method: "POST",
      mode: "cors",
      credentials: "include",
    });
    if (verify2fa.status === 200) {
      console.log(token);

      const loginResult = await fetch(api + "/auth/user", {
        headers: {
          accept: "*/*",
          Cookie: authCookie,
          "user-agent": ua,
          "content-type": "application/json",
        },
        referrer: "https://vrchat.com/home/twofactorauth",
        referrerPolicy: "strict-origin-when-cross-origin",
        body: null,
        method: "GET",
        mode: "cors",
        credentials: "include",
      });
      if (loginResult.status === 200) {
        console.log("logged in as", await loginResult.json());
        fs.writeFileSync(cookiePath, authCookie);
      } else console.log(loginResult);

      // fs.readFileSync
    } else console.log(verify2fa);
  }
  
};

app();