C# Selenium Chromedriver中的Hcaptcha + 2captcha/anticaptcha

using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;
using System.Net.Http;
using Newtonsoft.Json;

public class HcaptchaSolver
{
    private static readonly HttpClient client = new HttpClient();
    private const string ApiKey = "YOUR_2CAPTCHA_API_KEY";

    public static async Task<string> SolveHcaptcha(string sitekey, string url)
    {
        var response = await client.PostAsJsonAsync("http://2captcha.com/in.php", new
        {
            key = ApiKey,
            method = "hcaptcha",
            sitekey = sitekey,
            pageurl = url
        });

        var result = await response.Content.ReadAsStringAsync();
        var requestId = JsonConvert.DeserializeObject<dynamic>(result).request;

        while (true)
        {
            await Task.Delay(5000);
            response = await client.GetAsync($"http://2captcha.com/res.php?key={ApiKey}&action=get&id={requestId}");
            result = await response.Content.ReadAsStringAsync();

            if (result.Contains("CAPCHA_NOT_READY"))
                continue;

            var solution = JsonConvert.DeserializeObject<dynamic>(result).request;
            return solution;
        }
    }
}

// Usage
var driver = new ChromeDriver();
driver.Navigate().GoToUrl("https://example.com");

var sitekey = "YOUR_SITEKEY";
var solution = await HcaptchaSolver.SolveHcaptcha(sitekey, driver.Url);

// Inject the solution into the page
((IJavaScriptExecutor)driver).ExecuteScript($"document.getElementById('h-captcha-response').value = '{solution}';");