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进行调试canvas创建图片断点
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luzhisheng
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@ -3,3 +3,202 @@ https://www.geetest.com/demo/
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# 案例
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https://www.geetest.com/demo/slide-float.html
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## 通过抓包的流程
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### 1.获取了
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challenge: "a9ecc15e9116f3045390258cfae06040"
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gt: "019924a82c70bb123aae90d483087f94"
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new_captcha: true
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success: 1
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### 2.通过上面的gt获得了js代码 fullpage.9.0.8.js
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geetest_1641456537007({status: "success",…})
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data: {type: "fullpage", static_servers: ["static.geetest.com/", "dn-staticdown.qbox.me/"],…}
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aspect_radio: {slide: 103, click: 128, voice: 128, pencil: 128, beeline: 50}
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beeline: "/static/js/beeline.1.0.1.js"
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click: "/static/js/click.3.0.2.js"
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fullpage: "/static/js/fullpage.9.0.8.js"
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geetest: "/static/js/geetest.6.0.9.js"
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pencil: "/static/js/pencil.1.0.3.js"
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slide: "/static/js/slide.7.8.6.js"
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static_servers: ["static.geetest.com/", "dn-staticdown.qbox.me/"]
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type: "fullpage"
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voice: "/static/js/voice.1.2.0.js"
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status: "success
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9.0.8
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大版本.中版本.小版本
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一般情况小版本更新算法是不会改变的
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### 3.最后请求https://apiv6.geetest.com/get.php
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提交
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gt: 019924a82c70bb123aae90d483087f94
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challenge: a9ecc15e9116f3045390258cfae06040
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lang: zh-cn
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pt: 0
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client_type: web
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w: 9DUewz7mJWnFi4uk1tr......
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返回
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geetest_1641456537329({status: "success", data: {theme: "wind", theme_version: "1.5.8",…}})
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data: {theme: "wind", theme_version: "1.5.8",…}
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api_server: "api.geetest.com"
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c: [12, 58, 98, 36, 43, 95, 62, 15, 12]
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0: 12
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1: 58
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2: 98
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3: 36
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4: 43
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5: 95
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6: 62
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7: 15
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8: 12
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feedback: "https://www.geetest.com/contact#report"
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i18n_labels: {copyright: "由极验提供技术支持", error: "网络不给力", error_content: "请点击此处重试", error_title: "网络超时",…}
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copyright: "由极验提供技术支持"
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error: "网络不给力"
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error_content: "请点击此处重试"
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error_title: "网络超时"
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fullpage: "智能检测中"
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goto_cancel: "取消"
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goto_confirm: "前往"
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goto_homepage: "是否前往验证服务Geetest官网"
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loading_content: "智能验证检测中"
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next: "正在加载验证"
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next_ready: "请完成验证"
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read_reversed: false
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ready: "点击按钮进行验证"
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refresh_page: "页面出现错误啦！要继续操作，请刷新此页面"
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reset: "请点击重试"
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success: "验证成功"
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success_title: "通过验证"
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logo: true
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s: "65386e31"
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static_servers: ["static.geetest.com", "dn-staticdown.qbox.me"]
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0: "static.geetest.com"
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1: "dn-staticdown.qbox.me"
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theme: "wind"
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theme_version: "1.5.8"
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status: "success"
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### 4.ajax.php
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提交
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gt: 019924a82c70bb123aae90d483087f94
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challenge: a414df099537d238cb7ca3c487414ff4
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lang: zh-cn
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pt: 0
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client_type: web
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w: BjLmPs34hYB(EhN88sI....
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返回
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geetest_1641458409189({status: "success", data: {result: "slide"}})
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data: {result: "slide"}
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result: "slide"
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status: "success"
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### 5.get.php
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提交
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is_next: true
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type: slide3
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gt: 019924a82c70bb123aae90d483087f94
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challenge: a414df099537d238cb7ca3c487414ff4
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lang: zh-cn
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https: true
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protocol: https://
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offline: false
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product: embed
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api_server: api.geetest.com
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isPC: true
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autoReset: true
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width: 100%
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callback: geetest_1641458405510
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返回
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geetest_1641458405510({gt: "019924a82c70bb123aae90d483087f94", challenge: "a414df099537d238cb7ca3c487414ff449",…})
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api_server: "https://api.geetest.com"
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benchmark: false
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bg: "pictures/gt/a3e9020a7/bg/653d0c160.jpg"
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c: [12, 58, 98, 36, 43, 95, 62, 15, 12]
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challenge: "a414df099537d238cb7ca3c487414ff449"
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clean: false
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feedback: "https://www.geetest.com/contact#report"
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fullbg: "pictures/gt/a3e9020a7/a3e9020a7.jpg"
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fullpage: false
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gct_path: "/static/js/gct.e6dfc00e5bffe92123ca60b88da1e708.js"
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gt: "019924a82c70bb123aae90d483087f94"
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height: 160
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hide_delay: 800
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https: true
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i18n_labels: {cancel: "取消", close: "关闭验证", error: "请重试", fail: "请正确拼合图像", feedback: "帮助反馈", forbidden: "怪物吃了拼图，请重试",…}
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id: "aa414df099537d238cb7ca3c487414ff4"
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link: ""
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logo: true
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mobile: true
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product: "embed"
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s: "432f3165"
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show_delay: 250
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show_voice: true
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slice: "pictures/gt/a3e9020a7/slice/653d0c160.png"
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so: 0
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static_servers: ["static.geetest.com/", "dn-staticdown.qbox.me/"]
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template: ""
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theme: "ant"
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theme_version: "1.2.6"
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type: "multilink"
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version: "6.0.9"
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width: "100%"
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xpos: 0
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ypos: 28
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发现里面有原始图片（乱码），遮照图（乱码），滑动图
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### 6.ajax.php
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提交
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gt: 019924a82c70bb123aae90d483087f94
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challenge: a414df099537d238cb7ca3c487414ff449
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lang: zh-cn
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$_BBF: 0
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client_type: web
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w: )2aL(q5MW10p8S......
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返回
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geetest_1641458615294({success: 1, message: "success", validate: "dfd89b03f32cc4f88ab6e58b31bd9a46", score: "6"})
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message: "success"
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score: "6"
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success: 1
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validate: "dfd89b03f32cc4f88ab6e58b31bd9a46"
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一共6布信息，w的值是加密过的，需要破解
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## js调试
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### 1. 找到乱码原图还原
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点击图片html查看，发现有 ```<canvas>``` 标签定义图形
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什么是 canvas?
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HTML5 <canvas> 元素用于图形的绘制，通过脚本 (通常是JavaScript)来完成.
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<canvas> 标签只是图形容器，您必须使用脚本来绘制图形。
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你可以通过多种方法使用 canvas 绘制路径,盒、圆、字符以及添加图像。
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进行调试canvas创建图片断点
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