Vượt recapthca với C# dùng Http Request

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using xNet;

namespace HttpRequest_Bai1_GetDataFrom_HowKteam
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        #region Kteam code
        void AddCookie(HttpRequest http, string cookie)
        {
            var temp = cookie.Split(';');
            foreach (var item in temp)
            {
                var temp2 = item.Split('=');
                if (temp2.Count() > 1)
                {
                    http.Cookies.Add(temp2[0], temp2[1]);
                }
            }
        }

        string GetData(string url, HttpRequest http = null, string userArgent = "", string cookie = null)
        {
            if (http == null)
            {
                http = new HttpRequest();
                http.Cookies = new CookieDictionary();
            }

            if (!string.IsNullOrEmpty(cookie))
            {
                AddCookie(http, cookie);
            }

            if (!string.IsNullOrEmpty(userArgent))
            {
                http.UserAgent = userArgent;
            }
            string html = http.Get(url).ToString();
            return html;
        }

        string GetLoginDataToken(string html)
        {
            string token = "";

            var res = Regex.Matches(html, @"(?<=__RequestVerificationToken"" type=""hidden"" value="").*?(?="")", RegexOptions.Singleline);

            if (res != null && res.Count > 0)
            {
                token = res[1].ToString();
            }

            return token;
        }

        string GetVTCToken(string html)
        {
            string token = "";

            var res = Regex.Matches(html, @"(?<=__RequestVerificationToken"" type=""hidden"" value="").*?(?="")", RegexOptions.Singleline);

            if (res != null && res.Count > 0)
            {
                token = res[0].ToString();
            }

            return token;
        }

        string GetThayTrucTuyenToken(string html)
        {
            string token = "";

            var res = Regex.Matches(html, @"(?<=__RequestVerificationToken"" type=""hidden"" value="").*?(?="")", RegexOptions.Singleline);

            if (res != null && res.Count > 0)
            {
                token = res[0].ToString();
            }

            return token;
        }

        string PostData(HttpRequest http, string url, string data = null, string contentType = null, string userArgent = "", string cookie = null)
        {
            if (http == null)
            {
                http = new HttpRequest();
                http.Cookies = new CookieDictionary();
            }

            if (!string.IsNullOrEmpty(cookie))
            {
                AddCookie(http, cookie);
            }

            if (!string.IsNullOrEmpty(userArgent))
            {
                http.UserAgent = userArgent;
            }

            string html = http.Post(url, data, contentType).ToString();
            return html;
        }

        string UploadData(HttpRequest http, string url, MultipartContent data = null, string contentType = null, string userArgent = "", string cookie = null)
        {
            if (http == null)
            {
                http = new HttpRequest();
                http.Cookies = new CookieDictionary();
            }

            if (!string.IsNullOrEmpty(cookie))
            {
                AddCookie(http, cookie);
            }

            if (!string.IsNullOrEmpty(userArgent))
            {
                http.UserAgent = userArgent;
            }

            string html = http.Post(url, data).ToString();
            return html;
        }

        /// <summary>
        /// https://uploadfiles.io
        /// https://up.uploadfiles.io/upload
        /// {"status":true,"id":2830220,"url":"https:\/\/ufile.io\/bzu2r","destination":"https:\/\/uploadfiles.io\/bzu2r","name":"baner.png","filename":"bzu2r-baner.png","slug":"bzu2r","size":"131.2 KB","type":"image","expiry":"4 Weeks","session_id":"0a474824369a95008b21c963ef90f62a3d9aee8c","timing":"1538645128-1538645128"}
        /// </summary>
        /// <param name="path"></param>
        void UploadFile(string path)
        {
            MultipartContent data = new MultipartContent() {
                { new StringContent("dzuuid"), "cf45eb6a-834d-44f0-af1e-c6056ae1cc47"},
                { new StringContent("dzchunkindex"), "0"},
                { new StringContent("dztotalfilesize"), "134355"},
                { new StringContent("dzchunksize"), "26143000"},
                { new StringContent("dztotalchunkcount"), "1"},
                { new StringContent("dzchunkbyteoffset"), "0"},
                { new FileContent(path), "file", Path.GetFileName(path)}
            };

            var html = UploadData(null, "https://up.uploadfiles.io/upload", data);

            var dataRes = JsonConvert.DeserializeObject<UploadFileModel>(html);

            Process.Start(dataRes.destination);
        }

        string ResloveNormalCaptcha(string captchaKey, string imgBase64)
        {
            string capt = "";

            Recaptcha_2Captcha reCapt = new Recaptcha_2Captcha(captchaKey);

            bool isSuccess = reCapt.SolveNormalCapcha(imgBase64, out capt);

            while (!isSuccess)
            {
                isSuccess = reCapt.SolveNormalCapcha(imgBase64, out capt);
                Thread.Sleep(TimeSpan.FromSeconds(2));
            }

            return capt;
        }

        string Reslove2CaptchaCaptcha(string captchaKey, string ggKey, string url)
        {
            string capt = "";

            Recaptcha_2Captcha reCapt = new Recaptcha_2Captcha(captchaKey);

            bool isSuccess = reCapt.SolveRecaptchaV2(ggKey, url, out capt);

            while (!isSuccess)
            {
                isSuccess = reCapt.SolveRecaptchaV2(ggKey, url, out capt);
                Thread.Sleep(TimeSpan.FromSeconds(2));
            }

            return capt;
        }
        #endregion

        void UploadFile()
        {
            OpenFileDialog dialog = new OpenFileDialog();
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                UploadFile(dialog.FileName);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //Crawl
            /*
             HttpClient
             HttpWebClient
             WebClient
             HttpWebRequest
             HttpRequest
             */

            var html = GetData("https://www.howkteam.com/");
            TestData(html);
        }

        void TestData(string html)
        {
            File.WriteAllText("res.html", html);
            Process.Start("res.html");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            string cookie = "";
            var html = GetData("https://www.howkteam.com/", null, null, cookie);
            TestData(html);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            HttpRequest http = new HttpRequest();
            http.Cookies = new CookieDictionary();
            string userArgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36";

            var html = GetData("https://www.howkteam.vn", http, userArgent);


            string token = GetLoginDataToken(html);

            string userName = "kteamts@gmail.com";
            string password = "Test123@";
            string data = "__RequestVerificationToken=" + token + "&Email=" + WebUtility.UrlEncode(userName) + "&Password=" + WebUtility.UrlEncode(password) + "&RememberMe=true&RememberMe=false";
            html = PostData(http, "https://www.howkteam.vn/account/login?returnUrl=https%3A%2F%2Fwww.howkteam.vn%2F", data, "application/x-www-form-urlencoded; charset=UTF-8").ToString();

            html = GetData("https://www.howkteam.vn", http, userArgent);

            File.WriteAllText("res.html", html);
            Process.Start("res.html");
        }

        private void button4_Click(object sender, EventArgs e)
        {
            UploadFile();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            HttpRequest http = new HttpRequest();
            http.Cookies = new CookieDictionary();
            string userArgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36";

            var html = GetData("https://vtcgame.vn/nap-vcoin/qua-the-cao.html", http, userArgent);

            string token = GetVTCToken(html);

            string userName = "rongk9";
            string serial = "54356432132434";
            string code = "fdsfdsfdseswfdsfs";

            var binImg = http.Get("https://vtcgame.vn//CaptchaImage.ashx?ss=0.56879455647683&w=60&h=40").ToMemoryStream().ToArray();

            File.WriteAllBytes("Captcha.jpg",binImg);

            string captcha = ResloveNormalCaptcha(textBox1.Text, Convert.ToBase64String(binImg));

            string data = "__RequestVerificationToken=" + token + "&typeCard=VC&seriCard=" + serial + "&codeCard=" + code + "&userNameReceive=" + userName + "&captcha=" + captcha + "&captchaVerify=";
            html = PostData(http, "https://vtcgame.vn/Vcoin/TopupByCard", data, "application/x-www-form-urlencoded; charset=UTF-8").ToString();

            VTCChargeResponseModel resData = JsonConvert.DeserializeObject<VTCChargeResponseModel>(html);

            MessageBox.Show(resData.ErorrMess);
        }

        private void button6_Click(object sender, EventArgs e)
        {
            HttpRequest http = new HttpRequest();
            http.Cookies = new CookieDictionary();
            string userArgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36";

            var html = GetData("http://thaytructuyen.com/Account/Login", http, userArgent);

            string token = GetThayTrucTuyenToken(html);

            string userName = "rongk9";
            string password = "dsadae2dasd";
            string ggKey = "6Lf57BcUAAAAABST6IWjYd97ghC3v2kKsCfPNrdg";
            string captchaURL = "http://thaytructuyen.com/Account/Login";

            string captcha = Reslove2CaptchaCaptcha(textBox1.Text, ggKey, captchaURL);

            string data = "__RequestVerificationToken="+token+"&UserName="+userName+"&Password="+password+"&g-recaptcha-response="+captcha+"&RememberMe=false";
            html = PostData(http, "http://thaytructuyen.com/Account/Login", data, "application/x-www-form-urlencoded; charset=UTF-8").ToString();

            //if (html.Contains("Bạn Chưa X&#225;c Nhận Đ&#250;ng CaptCha."))
            //{

            //}

            TestData(html);
        }
    }

    public class VTCChargeResponseModel
    {
        public int ResponseStatus { get; set; }
        public string ErorrMess { get; set; }
    }

    public class UploadFileModel
    {
        public bool status { get; set; }
        public int id { get; set; }
        public string url { get; set; }
        public string destination { get; set; }
        public string name { get; set; }
        public string filename { get; set; }
        public string slug { get; set; }
        public string size { get; set; }
        public string type { get; set; }
        public string expiry { get; set; }
        public string session_id { get; set; }
        public string timing { get; set; }
    }

    public class Recaptcha_2Captcha
    {
        public string APIKey { get; private set; }
        public Recaptcha_2Captcha(string apiKey)
        {
            APIKey = apiKey;
        }

        /// <summary>
        /// Sends a solve request and waits for a response
        /// </summary>
        /// <param name="googleKey">The "sitekey" value from site your captcha is located on</param>
        /// <param name="pageUrl">The page the captcha is located on</param>
        /// <param name="proxy">The proxy used, format: "username:password@ip:port</param>
        /// <param name="proxyType">The type of proxy used</param>
        /// <param name="result">If solving was successful this contains the answer</param>
        /// <returns>Returns true if solving was successful, otherwise false</returns>
        public bool SolveRecaptchaV2(string googleKey, string pageUrl, out string result)
        {
            string requestUrl = "http://2captcha.com/in.php?key=" + APIKey + "&method=userrecaptcha&googlekey=" + googleKey + "&pageurl=" + pageUrl;
            try
            {
                WebRequest req = WebRequest.Create(requestUrl);

                using (WebResponse resp = req.GetResponse())
                using (StreamReader read = new StreamReader(resp.GetResponseStream()))
                {
                    string response = read.ReadToEnd();

                    if (response.Length < 3)
                    {
                        result = response;
                        return false;
                    }
                    else
                    {
                        if (response.Substring(0, 3) == "OK|")
                        {
                            string captchaID = response.Remove(0, 3);

                            for (int i = 0; i < 24; i++)
                            {
                                WebRequest getAnswer = WebRequest.Create("http://2captcha.com/res.php?key=" + APIKey + "&action=get&id=" + captchaID);

                                using (WebResponse answerResp = getAnswer.GetResponse())
                                using (StreamReader answerStream = new StreamReader(answerResp.GetResponseStream()))
                                {
                                    string answerResponse = answerStream.ReadToEnd();

                                    if (answerResponse.Length < 3)
                                    {
                                        result = answerResponse;
                                        return false;
                                    }
                                    else
                                    {
                                        if (answerResponse.Substring(0, 3) == "OK|")
                                        {
                                            result = answerResponse.Remove(0, 3);
                                            return true;
                                        }
                                        else if (answerResponse != "CAPCHA_NOT_READY")
                                        {
                                            result = answerResponse;
                                            return false;
                                        }
                                    }
                                }

                                Thread.Sleep(5000);
                            }

                            result = "Timeout";
                            return false;
                        }
                        else
                        {
                            result = response;
                            return false;
                        }
                    }
                }
            }
            catch { }

            result = "Unknown error";
            return false;
        }

        /// <summary>
        /// Slove normal capcha wroted by K9 from Kteam
        /// You have to get the capcha image from the website then convert to base64
        /// </summary>
        /// <param name="base64Image"></param>
        /// <param name="result"></param>
        /// <returns></returns>
        public bool SolveNormalCapcha(string base64Image, out string result)
        {
            string response = "";
            using (var client = new WebClient())
            {
                var values = new NameValueCollection();
                values["method"] = "base64";
                values["key"] = APIKey;
                values["body"] = base64Image;
                var res = client.UploadValues("http://2captcha.com/in.php", values);
                response = Encoding.Default.GetString(res);
            }

            Thread.Sleep(TimeSpan.FromSeconds(5));
            if (response.Substring(0, 3) == "OK|")
            {
                string captchaID = response.Remove(0, 3);

                for (int i = 0; i < 24; i++)
                {
                    WebRequest getAnswer = WebRequest.Create("http://2captcha.com/res.php?key=" + APIKey + "&action=get&id=" + captchaID);

                    using (WebResponse answerResp = getAnswer.GetResponse())
                    using (StreamReader answerStream = new StreamReader(answerResp.GetResponseStream()))
                    {
                        string answerResponse = answerStream.ReadToEnd();

                        if (answerResponse.Length < 3)
                        {
                            result = answerResponse;
                            return false;
                        }
                        else
                        {
                            if (answerResponse.Substring(0, 3) == "OK|")
                            {
                                result = answerResponse.Remove(0, 3);
                                return true;
                            }
                            else if (answerResponse != "CAPCHA_NOT_READY")
                            {
                                result = answerResponse;
                                return false;
                            }
                        }
                    }

                    Thread.Sleep(5000);
                }

                result = "Timeout";
                return false;
            }
            else
            {
                result = response;
                return false;
            }
        }
    }
}
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namespace HttpRequest_Bai1_GetDataFrom_HowKteam
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.button5 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.button6 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(12, 12);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "Get data";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(93, 12);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(122, 23);
            this.button2.TabIndex = 1;
            this.button2.Text = "Get data with cookie";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(221, 12);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(114, 23);
            this.button3.TabIndex = 2;
            this.button3.Text = "Post đăng nhập";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // button4
            // 
            this.button4.Location = new System.Drawing.Point(341, 12);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(75, 23);
            this.button4.TabIndex = 3;
            this.button4.Text = "Upload file";
            this.button4.UseVisualStyleBackColor = true;
            this.button4.Click += new System.EventHandler(this.button4_Click);
            // 
            // button5
            // 
            this.button5.Location = new System.Drawing.Point(12, 41);
            this.button5.Name = "button5";
            this.button5.Size = new System.Drawing.Size(137, 23);
            this.button5.TabIndex = 4;
            this.button5.Text = "Normal captcha VTC";
            this.button5.UseVisualStyleBackColor = true;
            this.button5.Click += new System.EventHandler(this.button5_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(155, 44);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(111, 20);
            this.textBox1.TabIndex = 5;
            // 
            // button6
            // 
            this.button6.Location = new System.Drawing.Point(272, 42);
            this.button6.Name = "button6";
            this.button6.Size = new System.Drawing.Size(144, 23);
            this.button6.TabIndex = 6;
            this.button6.Text = "Re-Captcha thaytructuyen";
            this.button6.UseVisualStyleBackColor = true;
            this.button6.Click += new System.EventHandler(this.button6_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(432, 191);
            this.Controls.Add(this.button6);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button5);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button button4;
        private System.Windows.Forms.Button button5;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button button6;
    }
}

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