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wycm / Selenium Geetest Crack

selenium破解滑动验证码

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2019-12-23更新

  • 优化Tencent距离计算可能出错的问题,当bgWrap不是原图的1/2时.
  • 增加一种移动算法getMoveEntity1。如果小方块完全重合的情况报"拼图块半路丢了,再试一次吧",可以尝试切换为getMoveEntity1。

2019-04-16更新

2018-09-20更新

  • 新增对腾讯滑动验证码https://007.qq.com/online.html?ADTAG=capt.slide的支持,本地测试通过率70左右,有待优化中, 主要失败在计算距离上,大家有好的想法欢迎提出。
  • Run with TencentCrawler.java
  • 腾讯滑动验证码破解的思路和极验滑动验证码略微不同,腾讯只会返回一张完整图片,导致没法通过两张图片比对的方式来计算移动距离。 所以只能通过一张图来计算距离,这里计算的方式是通过y轴上至少找到一条长度为30px的白线。另外此处直接通过http请求的方式来下载的原图,这么做有两个原因
    1. 截图的方式会对那条关键白线的像素点有所干扰,计算的时候不太方便
    2. 返回到前端的图片并没有像极验那样对图片做混淆

2018-09-18更新

  • 更新移动轨迹算法,成功率90左右,感谢Ouyang-Wenbin提供的代码。

2018-09-08更新

  • 页面改版,导致截图拿到的两张图片一样。
  • 另外原有的移动轨迹算法成功率有所下降,目前本地测试成功率50%左右。

2018-06-12更新

  • 17年8月份初次分享出来的时候还是可用的,在极验后台更新以后。成功率急剧下降。
  • 再加上威锋网也更新了,之前的demo也不可用了。个人原因也一直没有更新。
  • 现在是极验官网作为demo。
  • 现在的破解思路和之前大致相同,不过也省了很多事。之前版本其实有点麻烦弯路,不知道selenium提供了截图的api。导致自己通过css去还原图片,比较麻烦。现在极验也是通过canvas的方式对图片做的还原,没有以前那么容易还原了。所以当前版本直接采用截图的形式。
  • 另外需要注意的是selenium截图的一个坑,不确定是否由我自己环境导致的,我当前测试环境是mac pro。具体表现网页截图分辨率大小和网页原本的分辨率大小不一致,这种情况可能导致在取某个element时拿不到想要的元素。
  • 最核心的依然是移动轨迹的算法,这次采用的一种看起来很简单的轨迹,就是一个像素点的移动。本地测试了10次,通过了10次,测试通过率100%。

Quick Start

  1. 修改GeetestCrawlerV2中自己环境的ChromeDriver地址。
  2. Run with GeetestCrawlerV2.java

分割线以下是原文


摘要

分析验证码素材图片混淆原理,并采用selenium模拟人拖动滑块过程,进而破解验证码。

人工验证的过程

  1. 打开威锋网注册页面(https://passport.feng.com/?r=user/register)
  2. 移动鼠标至小滑块,一张完整的图片会出现(如下图1)
    image
  3. 点击鼠标左键,图片中间会出现一个缺块(如下图2)
    image
  4. 移动小滑块正上方图案至缺块处
  5. 验证通过

selenium模拟验证的过程

  1. 加载威锋网注册页面(https://passport.feng.com/?r=user/register)
  2. 下载图片1和缺块图片2
  3. 根据两张图片的差异计算平移的距离x
  4. 模拟鼠标点击事件,点击小滑块向右移动x
  5. 验证通过

详细分析

  1. 打开chrome浏览器控制台,会发现图1所示的验证码图片并不是极验后台返回的原图。而是由多个div拼接而成(如下图3)
    image 通过图片显示div的style属性可知,极验后台把图片进行切割加错位处理。把素材图片切割成10 * 58大小的52张小图,再进行错位处理。在网页上显示的时候,再通过css的background-position属性对图片进行还原。以上的图1和图2都是经过了这种处理。在这种情况下,使用selenium模拟验证是需要对下载的验证码图片进行还原。如上图3的第一个div.gt_cut_fullbg_slice标签,它的大小为10px * 58px,其中style属性为background-image: url("http://static.geetest.com/pictures/gt/969ffa43c/969ffa43c.webp"); background-position: -157px -58px;会把该属性对应url的图片进行一个平移操作,以左上角为参考,向左平移157px,向上平移58px,图片超出部分不会显示。所以上图1所示图片是由26 * 2个10px * 58px大小的div组成(如下图4)。每一个小方块的大小58 * 10
    image
  2. 下载图片并还原,上一步骤分析了图片具体的混淆逻辑,具体还原图片的代码实现如下,主要逻辑是把原图裁剪为52张小图,然后拼接成一张完整的图。
    /**
     *还原图片
     * @param type
     */
    private static void restoreImage(String type) throws IOException {
        //把图片裁剪为2 * 26份
        for(int i = 0; i < 52; i++){
            cutPic(basePath + type +".jpg"
                    ,basePath + "result/" + type + i + ".jpg", -moveArray[i][0], -moveArray[i][1], 10, 58);
        }
        //拼接图片
        String[] b = new String[26];
        for(int i = 0; i < 26; i++){
            b[i] = String.format(basePath + "result/" + type + "%d.jpg", i);
        }
        mergeImage(b, 1, basePath + "result/" + type + "result1.jpg");
        //拼接图片
        String[] c = new String[26];
        for(int i = 0; i < 26; i++){
            c[i] = String.format(basePath + "result/" + type + "%d.jpg", i + 26);
        }
        mergeImage(c, 1, basePath + "result/" + type + "result2.jpg");
        mergeImage(new String[]{basePath + "result/" + type + "result1.jpg",
                basePath + "result/" + type + "result2.jpg"}, 2, basePath + "result/" + type + "result3.jpg");
        //删除产生的中间图片
        for(int i = 0; i < 52; i++){
            new File(basePath + "result/" + type + i + ".jpg").deleteOnExit();
        }
        new File(basePath + "result/" + type + "result1.jpg").deleteOnExit();
        new File(basePath + "result/" + type + "result2.jpg").deleteOnExit();
    }
    
    还原过程需要注意的是,后台返回错位的图片是312 * 116大小的。而网页上图片div的大小是260 * 116。
  3. 计算平移距离,遍历图片的每一个像素点,当两张图的R、G、B之差的和大于255,说明该点的差异过大,很有可能就是需要平移到该位置的那个点,代码如下。
    BufferedImage fullBI = ImageIO.read(new File(basePath + "result/" + FULL_IMAGE_NAME + "result3.jpg"));
        BufferedImage bgBI = ImageIO.read(new File(basePath + "result/" + BG_IMAGE_NAME + "result3.jpg"));
        for (int i = 0; i < bgBI.getWidth(); i++){
            for (int j = 0; j < bgBI.getHeight(); j++) {
                int[] fullRgb = new int[3];
                fullRgb[0] = (fullBI.getRGB(i, j)  & 0xff0000) >> 16;
                fullRgb[1] = (fullBI.getRGB(i, j)  & 0xff00) >> 8;
                fullRgb[2] = (fullBI.getRGB(i, j)  & 0xff);
    
                int[] bgRgb = new int[3];
                bgRgb[0] = (bgBI.getRGB(i, j)  & 0xff0000) >> 16;
                bgRgb[1] = (bgBI.getRGB(i, j)  & 0xff00) >> 8;
                bgRgb[2] = (bgBI.getRGB(i, j)  & 0xff);
                if(difference(fullRgb, bgRgb) > 255){
                    return i;
                }
            }
        }
    
  4. 模拟鼠标移动事件,这一步骤是最关键的步骤,极验验证码后台正是通过移动滑块的轨迹来判断是否为机器所为。整个移动轨迹的过程越随机越好,我这里提供一种成功率较高的移动算法,代码如下。
        public static void move(WebDriver driver, WebElement element, int distance) throws InterruptedException {
            int xDis = distance + 11;
            System.out.println("应平移距离:" + xDis);
            int moveX = new Random().nextInt(8) - 5;
            int moveY = 1;
            Actions actions = new Actions(driver);
            new Actions(driver).clickAndHold(element).perform();
            Thread.sleep(200);
            printLocation(element);
            actions.moveToElement(element, moveX, moveY).perform();
            System.out.println(moveX + "--" + moveY);
            printLocation(element);
            for (int i = 0; i < 22; i++){
                int s = 10;
                if (i % 2 == 0){
                    s = -10;
                }
                actions.moveToElement(element, s, 1).perform();
                printLocation(element);
                Thread.sleep(new Random().nextInt(100) + 150);
            }
    
            System.out.println(xDis + "--" + 1);
            actions.moveByOffset(xDis, 1).perform();
            printLocation(element);
            Thread.sleep(200);
            actions.release(element).perform();
        }
    
  5. 完整代码如下
    package com.github.wycm;
    
    import org.apache.commons.io.FileUtils;
    import org.jsoup.Jsoup;
    import org.jsoup.nodes.Document;
    import org.jsoup.nodes.Element;
    import org.jsoup.select.Elements;
    import org.openqa.selenium.By;
    import org.openqa.selenium.Point;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.WebElement;
    import org.openqa.selenium.chrome.ChromeDriver;
    import org.openqa.selenium.interactions.Actions;
    import org.openqa.selenium.support.ui.ExpectedCondition;
    import org.openqa.selenium.support.ui.WebDriverWait;
    
    import javax.imageio.ImageIO;
    import javax.imageio.ImageReadParam;
    import javax.imageio.ImageReader;
    import javax.imageio.stream.ImageInputStream;
    import java.awt.*;
    import java.awt.image.BufferedImage;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.net.URL;
    import java.util.Iterator;
    import java.util.Random;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    
    public class GeettestCrawler {
        private static String basePath = "src/main/resources/";
        private static String FULL_IMAGE_NAME = "full-image";
        private static String BG_IMAGE_NAME = "bg-image";
        private static int[][] moveArray = new int[52][2];
        private static boolean moveArrayInit = false;
        private static String INDEX_URL = "https://passport.feng.com/?r=user/register";
        private static WebDriver driver;
    
        static {
            System.setProperty("webdriver.chrome.driver", "D:/dev/selenium/chromedriver_V2.30/chromedriver_win32/chromedriver.exe");
            if (!System.getProperty("os.name").toLowerCase().contains("windows")){
                System.setProperty("webdriver.chrome.driver", "/Users/wangyang/workspace/selenium/chromedriver_V2.30/chromedriver");
            }
            driver = new ChromeDriver();
        }
    
        public static void main(String[] args) throws InterruptedException {
            for (int i = 0; i < 10; i++){
                try {
                    invoke();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            driver.quit();
        }
        private static void invoke() throws IOException, InterruptedException {
            //设置input参数
            driver.get(INDEX_URL);
    
            //通过[class=gt_slider_knob gt_show]
            By moveBtn = By.cssSelector(".gt_slider_knob.gt_show");
            waitForLoad(driver, moveBtn);
            WebElement moveElemet = driver.findElement(moveBtn);
            int i = 0;
            while (i++ < 15){
                int distance = getMoveDistance(driver);
                move(driver, moveElemet, distance - 6);
                By gtTypeBy = By.cssSelector(".gt_info_type");
                By gtInfoBy = By.cssSelector(".gt_info_content");
                waitForLoad(driver, gtTypeBy);
                waitForLoad(driver, gtInfoBy);
                String gtType = driver.findElement(gtTypeBy).getText();
                String gtInfo = driver.findElement(gtInfoBy).getText();
                System.out.println(gtType + "---" + gtInfo);
                /**
                 * 再来一次:
                 * 验证失败:
                 */
                if(!gtType.equals("再来一次:") && !gtType.equals("验证失败:")){
                    Thread.sleep(4000);
                    System.out.println(driver);
                    break;
                }
                Thread.sleep(4000);
            }
        }
    
        /**
         * 移动
         * @param driver
         * @param element
         * @param distance
         * @throws InterruptedException
         */
        public static void move(WebDriver driver, WebElement element, int distance) throws InterruptedException {
            int xDis = distance + 11;
            System.out.println("应平移距离:" + xDis);
            int moveX = new Random().nextInt(8) - 5;
            int moveY = 1;
            Actions actions = new Actions(driver);
            new Actions(driver).clickAndHold(element).perform();
            Thread.sleep(200);
            printLocation(element);
            actions.moveToElement(element, moveX, moveY).perform();
            System.out.println(moveX + "--" + moveY);
            printLocation(element);
            for (int i = 0; i < 22; i++){
                int s = 10;
                if (i % 2 == 0){
                    s = -10;
                }
                actions.moveToElement(element, s, 1).perform();
    //            printLocation(element);
                Thread.sleep(new Random().nextInt(100) + 150);
            }
    
            System.out.println(xDis + "--" + 1);
            actions.moveByOffset(xDis, 1).perform();
            printLocation(element);
            Thread.sleep(200);
            actions.release(element).perform();
        }
        private static void printLocation(WebElement element){
            Point point  = element.getLocation();
            System.out.println(point.toString());
        }
        /**
         * 等待元素加载,10s超时
         * @param driver
         * @param by
         */
        public static void waitForLoad(final WebDriver driver, final By by){
            new WebDriverWait(driver, 10).until(new ExpectedCondition<Boolean>() {
                public Boolean apply(WebDriver d) {
                    WebElement element = driver.findElement(by);
                    if (element != null){
                        return true;
                    }
                    return false;
                }
            });
        }
    
        /**
         * 计算需要平移的距离
         * @param driver
         * @return
         * @throws IOException
         */
        public static int getMoveDistance(WebDriver driver) throws IOException {
            String pageSource = driver.getPageSource();
            String fullImageUrl = getFullImageUrl(pageSource);
            FileUtils.copyURLToFile(new URL(fullImageUrl), new File(basePath + FULL_IMAGE_NAME + ".jpg"));
            String getBgImageUrl = getBgImageUrl(pageSource);
            FileUtils.copyURLToFile(new URL(getBgImageUrl), new File(basePath + BG_IMAGE_NAME + ".jpg"));
            initMoveArray(driver);
            restoreImage(FULL_IMAGE_NAME);
            restoreImage(BG_IMAGE_NAME);
            BufferedImage fullBI = ImageIO.read(new File(basePath + "result/" + FULL_IMAGE_NAME + "result3.jpg"));
            BufferedImage bgBI = ImageIO.read(new File(basePath + "result/" + BG_IMAGE_NAME + "result3.jpg"));
            for (int i = 0; i < bgBI.getWidth(); i++){
                for (int j = 0; j < bgBI.getHeight(); j++) {
                    int[] fullRgb = new int[3];
                    fullRgb[0] = (fullBI.getRGB(i, j)  & 0xff0000) >> 16;
                    fullRgb[1] = (fullBI.getRGB(i, j)  & 0xff00) >> 8;
                    fullRgb[2] = (fullBI.getRGB(i, j)  & 0xff);
    
                    int[] bgRgb = new int[3];
                    bgRgb[0] = (bgBI.getRGB(i, j)  & 0xff0000) >> 16;
                    bgRgb[1] = (bgBI.getRGB(i, j)  & 0xff00) >> 8;
                    bgRgb[2] = (bgBI.getRGB(i, j)  & 0xff);
                    if(difference(fullRgb, bgRgb) > 255){
                        return i;
                    }
                }
            }
            throw new RuntimeException("未找到需要平移的位置");
        }
        private static int difference(int[] a, int[] b){
            return Math.abs(a[0] - b[0]) + Math.abs(a[1] - b[1]) + Math.abs(a[2] - b[2]);
        }
        /**
         * 获取move数组
         * @param driver
         */
        private static void initMoveArray(WebDriver driver){
            if (moveArrayInit){
                return;
            }
            Document document = Jsoup.parse(driver.getPageSource());
            Elements elements = document.select("[class=gt_cut_bg gt_show]").first().children();
            int i = 0;
            for(Element element : elements){
                Pattern pattern = Pattern.compile(".*background-position: (.*?)px (.*?)px.*");
                Matcher matcher = pattern.matcher(element.toString());
                if (matcher.find()){
                    String width = matcher.group(1);
                    String height = matcher.group(2);
                    moveArray[i][0] = Integer.parseInt(width);
                    moveArray[i++][1] = Integer.parseInt(height);
                } else {
                    throw new RuntimeException("解析异常");
                }
            }
            moveArrayInit = true;
        }
        /**
         *还原图片
         * @param type
         */
        private static void restoreImage(String type) throws IOException {
            //把图片裁剪为2 * 26份
            for(int i = 0; i < 52; i++){
                cutPic(basePath + type +".jpg"
                        ,basePath + "result/" + type + i + ".jpg", -moveArray[i][0], -moveArray[i][1], 10, 58);
            }
            //拼接图片
            String[] b = new String[26];
            for(int i = 0; i < 26; i++){
                b[i] = String.format(basePath + "result/" + type + "%d.jpg", i);
            }
            mergeImage(b, 1, basePath + "result/" + type + "result1.jpg");
            //拼接图片
            String[] c = new String[26];
            for(int i = 0; i < 26; i++){
                c[i] = String.format(basePath + "result/" + type + "%d.jpg", i + 26);
            }
            mergeImage(c, 1, basePath + "result/" + type + "result2.jpg");
            mergeImage(new String[]{basePath + "result/" + type + "result1.jpg",
                    basePath + "result/" + type + "result2.jpg"}, 2, basePath + "result/" + type + "result3.jpg");
            //删除产生的中间图片
            for(int i = 0; i < 52; i++){
                new File(basePath + "result/" + type + i + ".jpg").deleteOnExit();
            }
            new File(basePath + "result/" + type + "result1.jpg").deleteOnExit();
            new File(basePath + "result/" + type + "result2.jpg").deleteOnExit();
        }
        /**
         * 获取原始图url
         * @param pageSource
         * @return
         */
        private static String getFullImageUrl(String pageSource){
            String url = null;
            Document document = Jsoup.parse(pageSource);
            String style = document.select("[class=gt_cut_fullbg_slice]").first().attr("style");
            Pattern pattern = Pattern.compile("url\\(\"(.*)\"\\)");
            Matcher matcher = pattern.matcher(style);
            if (matcher.find()){
                url = matcher.group(1);
            }
            url = url.replace(".webp", ".jpg");
            System.out.println(url);
            return url;
        }
        /**
         * 获取带背景的url
         * @param pageSource
         * @return
         */
        private static String getBgImageUrl(String pageSource){
            String url = null;
            Document document = Jsoup.parse(pageSource);
            String style = document.select(".gt_cut_bg_slice").first().attr("style");
            Pattern pattern = Pattern.compile("url\\(\"(.*)\"\\)");
            Matcher matcher = pattern.matcher(style);
            if (matcher.find()){
                url = matcher.group(1);
            }
            url = url.replace(".webp", ".jpg");
            System.out.println(url);
            return url;
        }
        public static boolean cutPic(String srcFile, String outFile, int x, int y,
                                     int width, int height) {
            FileInputStream is = null;
            ImageInputStream iis = null;
            try {
                if (!new File(srcFile).exists()) {
                    return false;
                }
                is = new FileInputStream(srcFile);
                String ext = srcFile.substring(srcFile.lastIndexOf(".") + 1);
                Iterator<ImageReader> it = ImageIO.getImageReadersByFormatName(ext);
                ImageReader reader = it.next();
                iis = ImageIO.createImageInputStream(is);
                reader.setInput(iis, true);
                ImageReadParam param = reader.getDefaultReadParam();
                Rectangle rect = new Rectangle(x, y, width, height);
                param.setSourceRegion(rect);
                BufferedImage bi = reader.read(0, param);
                File tempOutFile = new File(outFile);
                if (!tempOutFile.exists()) {
                    tempOutFile.mkdirs();
                }
                ImageIO.write(bi, ext, new File(outFile));
                return true;
            } catch (Exception e) {
                e.printStackTrace();
                return false;
            } finally {
                try {
                    if (is != null) {
                        is.close();
                    }
                    if (iis != null) {
                        iis.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                    return false;
                }
            }
        }
        /**
         * 图片拼接 (注意:必须两张图片长宽一致哦)
         * @param files 要拼接的文件列表
         * @param type  1横向拼接,2 纵向拼接
         * @param targetFile 输出文件
         */
        private static void mergeImage(String[] files, int type, String targetFile) {
            int length = files.length;
            File[] src = new File[length];
            BufferedImage[] images = new BufferedImage[length];
            int[][] ImageArrays = new int[length][];
            for (int i = 0; i < length; i++) {
                try {
                    src[i] = new File(files[i]);
                    images[i] = ImageIO.read(src[i]);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
                int width = images[i].getWidth();
                int height = images[i].getHeight();
                ImageArrays[i] = new int[width * height];
                ImageArrays[i] = images[i].getRGB(0, 0, width, height, ImageArrays[i], 0, width);
            }
            int newHeight = 0;
            int newWidth = 0;
            for (int i = 0; i < images.length; i++) {
                // 横向
                if (type == 1) {
                    newHeight = newHeight > images[i].getHeight() ? newHeight : images[i].getHeight();
                    newWidth += images[i].getWidth();
                } else if (type == 2) {// 纵向
                    newWidth = newWidth > images[i].getWidth() ? newWidth : images[i].getWidth();
                    newHeight += images[i].getHeight();
                }
            }
            if (type == 1 && newWidth < 1) {
                return;
            }
            if (type == 2 && newHeight < 1) {
                return;
            }
            // 生成新图片
            try {
                BufferedImage ImageNew = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_RGB);
                int height_i = 0;
                int width_i = 0;
                for (int i = 0; i < images.length; i++) {
                    if (type == 1) {
                        ImageNew.setRGB(width_i, 0, images[i].getWidth(), newHeight, ImageArrays[i], 0,
                                images[i].getWidth());
                        width_i += images[i].getWidth();
                    } else if (type == 2) {
                        ImageNew.setRGB(0, height_i, newWidth, images[i].getHeight(), ImageArrays[i], 0, newWidth);
                        height_i += images[i].getHeight();
                    }
                }
                //输出想要的图片
                ImageIO.write(ImageNew, targetFile.split("\\.")[1], new File(targetFile));
    
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }
    
    
  6. pom文件依赖如下
        <dependency>
          <groupId>org.seleniumhq.selenium</groupId>
          <artifactId>selenium-server</artifactId>
          <version>3.0.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
        <dependency>
          <groupId>org.jsoup</groupId>
          <artifactId>jsoup</artifactId>
          <version>1.7.2</version>
        </dependency>
    

免责申明

  • 本项目仅供个人学习与交流使用,严禁用于商业以及不良用途。

效果

  1. github地址:https://github.com/wycm/selenium-geetest-crack
  2. 附上一张滑动效果图
    image

最后

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