inject.js

// @ts-check

import puppeteer from 'puppeteer-core';
import axios from 'axios';
import fs from 'fs/promises';
import assert from 'assert';

const BOTBROWSER_EXEC_PATH = process.env.BOTBROWSER_EXEC_PATH;
const BOT_PROFILE_PATH = process.env.BOT_PROFILE_PATH;

assert(BOTBROWSER_EXEC_PATH, 'BOTBROWSER_EXEC_PATH environment variable is not set');
assert(BOT_PROFILE_PATH, 'BOT_PROFILE_PATH environment variable is not set');

const browser = await puppeteer.launch({
    browser: 'chrome',
    executablePath: BOTBROWSER_EXEC_PATH,
    headless: false, // Set to true for production
    ignoreDefaultArgs: [
        '--no-startup-window',
        '--disable-crash-reporter',
        '--disable-crashpad-for-testing',
        '--disable-gpu-watchdog',
    ],
    args: [
        '--no-sandbox',
        '--disable-blink-features=AutomationControlled',
        '--disable-audio-output',
        `--bot-profile=${BOT_PROFILE_PATH}`,
    ],
});

const page = (await browser.pages())[0];
await page.setRequestInterception(true);

let payloads = [];
await page.exposeFunction('__get_payloads', (key, value) => {
    payloads.push({ a: key, b: value });
    payloads.sort((x, y) => x.a.localeCompare(y.a));
});

page.on('request', async (request) => {
    const url = request.url();
    if (!url.startsWith('https://geo.captcha-delivery.com/interstitial/?initialCid=')) {
        request.continue();
        return;
    }

    const response = await axios.get(url, {
        headers: {
            'User-Agent': request.headers()['user-agent'],
            'Accept-Language': request.headers()['accept-language'],
            'Accept-Encoding': request.headers()['accept-encoding'],
            Referer: request.headers()['referer'],
        },
    });

    let { data } = response;

    // Modify the response data
    const match = data.match(
        /\bfunction\s+([a-zA-Z_$][\w$]*)\(\s*([a-zA-Z_$][\w$]*)\s*,\s*([a-zA-Z_$][\w$]*)\s*\)\{if\("string"==typeof\s*\2\s*&&/
    );
    const fnName = match?.[1];
    if (!fnName) {
        throw new Error('Function name not found');
    }

    // inject the code after "}}"
    const functionEndIndex = data.indexOf('}}', match.index + match[0].length);
    if (functionEndIndex === -1) {
        throw new Error('Function end not found');
    }

    const injectCode = `;window.__fn_${fnName}_backup = ${fnName};${fnName} = function(a,b) {window.__get_payloads(a,b);return window.__fn_${fnName}_backup(a, b);};`;
    data = data.slice(0, functionEndIndex + 2) + injectCode + data.slice(functionEndIndex + 2);
    await request.respond({ status: 200, contentType: 'text/html', body: data });
});

await page.goto(
    'https://seatgeek.com/ncaa-mens-basketball-tournament-tickets/ncaa-basketball/2025-04-07-7-50-pm/16852258'
);

await new Promise((resolve) => setTimeout(resolve, 10000)); // Wait for 10 seconds
await browser.close();
await fs.writeFile('payloads.json', JSON.stringify(payloads, null, 2));

console.log('Payloads saved to payloads.json');