[C#]滑动拼图验证码

极验验证码需要模拟人工操作，参考了以下例子：

/bat1989/p/12661153.html

主要修改了验证的部分：

环境：.net core3.1

using System;using System.Collections.Generic;using System.Drawing;using System.Threading;using OpenQA.Selenium;using OpenQA.Selenium.Interactions;using OpenQA.Selenium.Remote;using OpenQA.Selenium.Support.Extensions;using OpenQA.Selenium.Support.UI;namespace AgentCrawler{public interface ISlideVerificationCode{bool Pass(RemoteWebDriver remoteWebDriver);}public class SeleniumVertifyCode : ISlideVerificationCode{#region 属性/// <summary>/// 拖动按钮/// </summary>private const string SlidButton = "gt_slider_knob";/// <summary>/// 原始图层/// </summary>private const string OriginalMap = "gt_fullbg";/// <summary>/// 原始图加缺口背景图/// </summary>private const string NewMap = "gt_bg";/// <summary>/// 缺口图层/// </summary>private const string SliceMap = "gt_slice";private const int WaitTime = 100;/// <summary>/// 重试次数/// </summary>private const int TryTimes = 6;/// <summary>/// 缺口图默认偏移像素/// </summary>private const int LeftOffset = 4;private const string FullScreenPath = "全屏.png";private const string OriginalMapPath = "原图.png";private const string NewMapPath = "新图.png";#endregion 属性public void StartGeeTest(Uri uri){const int waitTime = 500;var options = new OpenQA.Selenium.Chrome.ChromeOptions();//options.AddArgument("-headless");options.AddArgument("--window-size=1920,1050");options.AddArgument("log-level=3");using OpenQA.Selenium.Chrome.ChromeDriver driver = new OpenQA.Selenium.Chrome.ChromeDriver(options);driver.Navigate().GoToUrl(uri);driver.ExecuteJavaScript("Object.defineProperty(navigator, 'webdriver', {get: () => undefined})");driver.Navigate().GoToUrl(uri);driver.ExecuteScript("header.loginLink(event)");Console.WriteLine("点击《登录/注册》按钮");Thread.Sleep(waitTime);driver.ExecuteScript("loginObj.changeCurrent(1);");Console.WriteLine("点击 《密码登录》按钮");Thread.Sleep(waitTime);driver.ExecuteScript("$('.contactphone').val('account')");driver.ExecuteScript("$('.contactword').val('')");Console.WriteLine("输入账号密码");Thread.Sleep(waitTime);driver.ExecuteScript("loginObj.loginByPhone(event);");Console.WriteLine("点击《登录》按钮");Thread.Sleep(waitTime);SeleniumVertifyCode slideVerificationCode = new SeleniumVertifyCode();var flag = slideVerificationCode.Pass(driver);Console.WriteLine($"验证结果{flag}");}public bool Pass(RemoteWebDriver remoteWebDriver){const int waitTime = 6000;int failTimes = 0;bool flag = false;do{ScreenMap(remoteWebDriver);var distance = GetDistance();if (distance > 0){Console.WriteLine($"开始获取移动轨迹...");var moveEntitys = GetMoveEntities(distance);Move(remoteWebDriver, moveEntitys);Console.WriteLine("休眠3秒,显示等待提交验证码...");Thread.Sleep(waitTime);Console.WriteLine("开始检查认证是否通过...");flag = CheckSuccess(remoteWebDriver);if (flag){break;}}} while (++failTimes < TryTimes);return flag;}public void GetCookie(RemoteWebDriver remoteWebDriver){List<string> list = new List<string>();foreach (var item in remoteWebDriver.Manage().Cookies.AllCookies){list.Add($"{item.Name}={item.Value}");}System.IO.File.WriteAllLines("Cookie.txt", list);}protected virtual bool CheckSuccess(RemoteWebDriver remoteWebDriver){const int waitTime = 6000;try{remoteWebDriver.FindElement(By.ClassName(SlidButton));Console.WriteLine("验证失败,显示等待6秒刷新验证码...");Thread.Sleep(waitTime);return false;}catch (NoSuchElementException){GetCookie(remoteWebDriver);return true;}}private void Move(RemoteWebDriver remoteWebDriver, List<MoveEntity> moveEntities){var slidButton = GetSlidButtonElement(remoteWebDriver);Actions builder = new Actions(remoteWebDriver);builder.ClickAndHold(slidButton).Perform();int offset = 0;int index = 0;foreach (var item in moveEntities){index++;builder = new Actions(remoteWebDriver);builder.MoveByOffset(item.X, item.Y).Perform();Console.WriteLine("向右总共移动了:" + (offset = offset + item.X));}builder.Release().Perform();}private List<MoveEntity> GetMoveEntities(int distance){List<MoveEntity> moveEntities = new List<MoveEntity>();int allOffset = 0;do{int offset = 0;double offsetPercentage = allOffset / (double)distance;if (offsetPercentage > 0.5){if (offsetPercentage < 0.85){offset = new Random().Next(10, 20);}else{offset = new Random().Next(2, 5);}}else{offset = new Random().Next(20, 30);}allOffset += offset;int y = (new Random().Next(0, 1) == 1 ? new Random().Next(0, 2) : 0 - new Random().Next(0, 2));moveEntities.Add(new MoveEntity(offset, y, offset));} while (allOffset <= distance + 5);var moveOver = allOffset > distance;for (int j = 0; j < Math.Abs(distance - allOffset);){int step = 3;int offset = moveOver ? -step : step;int sleep = new Random().Next(100, 200);moveEntities.Add(new MoveEntity(offset, 0, sleep)); ;j = j + step;}return moveEntities;}/// <summary>/// 比较两张图片的像素，确定阴影图片位置/// </summary>/// <param name="oldBmp"></param>/// <param name="newBmp"></param>/// <returns></returns>private int GetArgb(Bitmap oldBmp, Bitmap newBmp){//由于阴影图片四个角存在黑点(矩形1*1)for (int i = 0; i < newBmp.Width; i++){for (int j = 0; j < newBmp.Height; j++){if ((i >= 0 && i <= 1) && ((j >= 0 && j <= 1) || (j >= (newBmp.Height - 2) && j <= (newBmp.Height - 1)))){continue;}if ((i >= (newBmp.Width - 2) && i <= (newBmp.Width - 1)) && ((j >= 0 && j <= 1)|| (j >= (newBmp.Height - 2) && j <= (newBmp.Height - 1)))){continue;}//获取该点的像素的RGB的颜色Color oldColor = oldBmp.GetPixel(i, j);Color newColor = newBmp.GetPixel(i, j);if (Math.Abs(oldColor.R - newColor.R) > 60 || Math.Abs(oldColor.G - newColor.G) > 60|| Math.Abs(oldColor.B - newColor.B) > 60){return i;}}}return 0;}/// <summary>/// 获取实际图层缺口实际距离/// </summary>/// <returns></returns>private int GetDistance(){using Bitmap oldBitmap = (Bitmap)Image.FromFile(OriginalMapPath);using Bitmap newBitmap = (Bitmap)Image.FromFile(NewMapPath);var distance = GetArgb(oldBitmap, newBitmap);distance -= LeftOffset;Console.WriteLine($"缺口距离{distance}");return distance;}/// <summary>/// 截图/// </summary>/// <param name="remoteWebDriver"></param>private void ScreenMap(RemoteWebDriver remoteWebDriver){//显示原始图ShowOriginalMap(remoteWebDriver);//全屏截图FullScreen(remoteWebDriver);//获取原始图层var originalElement = GetOriginalElement(remoteWebDriver);//保存原始图CutBitmap(FullScreenPath, OriginalMapPath, originalElement, remoteWebDriver);//显示新图层ShowNewMap(remoteWebDriver);//全屏截图FullScreen(remoteWebDriver);//获取新图层var newElement = GetNewMapElement(remoteWebDriver);//保存新图CutBitmap(FullScreenPath, NewMapPath, newElement, remoteWebDriver);//显示缺口图ShowSliceMap(remoteWebDriver);}/// <summary>/// 截图/// </summary>/// <param name="sourcePath"></param>/// <param name="targetPath"></param>/// <param name="webElement"></param>private void CutBitmap(string sourcePath, string targetPath, IWebElement webElement, RemoteWebDriver remoteWebDriver){using var bitmap = (Bitmap)Image.FromFile(sourcePath);using var newBitmap = bitmap.Clone(new Rectangle(webElement.Location, webElement.Size),System.Drawing.Imaging.PixelFormat.DontCare);newBitmap.Save(targetPath);byte[] byteArray = ((ITakesScreenshot)remoteWebDriver).GetScreenshot().AsByteArray;System.Drawing.Bitmap screenshot = new System.Drawing.Bitmap(new System.IO.MemoryStream(byteArray));System.Drawing.Rectangle croppedImage = new System.Drawing.Rectangle(webElement.Location, webElement.Size);screenshot = screenshot.Clone(croppedImage, screenshot.PixelFormat);screenshot.Save(targetPath + ".jpg");}/// <summary>/// 全屏截图/// </summary>/// <param name="remoteWebDriver"></param>private void FullScreen(RemoteWebDriver remoteWebDriver){remoteWebDriver.GetScreenshot().SaveAsFile(FullScreenPath);}/// <summary>/// 获取原始图层元素/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual IWebElement GetOriginalElement(RemoteWebDriver remoteWebDriver){return remoteWebDriver.FindElementExtension(By.ClassName(OriginalMap));}/// <summary>/// 获取原始图加缺口背景图元素/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual IWebElement GetNewMapElement(RemoteWebDriver remoteWebDriver){return remoteWebDriver.FindElementExtension(By.ClassName(NewMap));}/// <summary>/// 获取缺口图层元素/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual IWebElement GetSliceMapElement(RemoteWebDriver remoteWebDriver){return remoteWebDriver.FindElementExtension(By.ClassName(SliceMap));}/// <summary>/// 获取拖动按钮元素/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual IWebElement GetSlidButtonElement(RemoteWebDriver remoteWebDriver){return remoteWebDriver.FindElementExtension(By.ClassName(SlidButton));}/// <summary>/// 显示原始图层/// </summary>/// <param name="remoteWebDriver"></param>protected virtual bool ShowOriginalMap(RemoteWebDriver remoteWebDriver){remoteWebDriver.ExecuteScript("$('." + NewMap + "').hide();$('." + OriginalMap + "').show();$('." + SliceMap + "').hide();");Console.WriteLine("显示原始图");Thread.Sleep(WaitTime);return true;}/// <summary>/// 显示原始图加缺口背景之后的图层/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual bool ShowNewMap(RemoteWebDriver remoteWebDriver){remoteWebDriver.ExecuteScript("$('." + NewMap + "').show();$('." + OriginalMap + "').hide();$('." + SliceMap + "').hide();");Console.WriteLine("显示原始图加缺口背景之后的图层");Thread.Sleep(WaitTime);return true;}/// <summary>/// 显示缺口图/// </summary>/// <param name="remoteWebDriver"></param>/// <returns></returns>protected virtual bool ShowSliceMap(RemoteWebDriver remoteWebDriver){remoteWebDriver.ExecuteScript("$('." + SliceMap + "').show();");Console.WriteLine("显示原始图加缺口背景之后的图层");Thread.Sleep(WaitTime);return true;}}internal class MoveEntity{public int X;public int Y;public int sleep;public MoveEntity(int offset, int v, int sleep){this.X = offset;this.Y = v;this.sleep = sleep;}}public static class WebElementExtensions{public static IWebElement FindElementExtension(this IWebDriver driver, By by, int timeoutInSeconds = 10){var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(timeoutInSeconds));return wait.Until(d => driver.FindElement(by));}}}

调用：

StartGeeTest(new Uri("/"));

到这篇发布时间，通过率95%以上