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@@ -1,376 +1,100 @@
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这是一个行为验证码的实现
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## [在线体验](https://www.tianai.cloud)
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# 这是一个滑块验证码的实现
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## [在线体验](http://101.42.239.82:8080/)
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## 验证码demo移步 [tianai-captcha-demo](https://gitee.com/tianai/tianai-captcha-demo)
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## 不说废话，直接上成品
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## 简单介绍
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- tianai-captcha 目前支持的行为验证码类型
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- 滑块验证码
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- 旋转验证码
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- 滑动还原验证码
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- 文字点选验证码
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- 后面会陆续支持市面上更多好玩的验证码玩法... 敬请期待
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## 快速上手
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- 该滑块验证码实现了 普通图片和 **webp**图片两种格式
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- java获取滑块验证码例子
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如果是SpringBoot开发者可直接使用SpringBoot快速启动器[tianai-captcha-springboot-starter](https://gitee.com/tianai/tianai-captcha-springboot-starter)
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### 1. 导入xml
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## 快速上手
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- 如果是SpringBoot开发者可直接使用SpringBoot快速启动器[tianai-captcha-springboot-starter](https://gitee.com/tianai/tianai-captcha-springboot-starter)
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1. 导入xml
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```xml
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<!-- maven 导入 -->
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<dependency>
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<groupId>cloud.tianai.captcha</groupId>
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<artifactId>tianai-captcha</artifactId>
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<version>1.3.2</version>
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</dependency>
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<!-- maven 导入 -->
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<dependency>
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<groupId>cloud.tianai.captcha</groupId>
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<artifactId>tianai-captcha</artifactId>
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<version>1.2.3</version>
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</dependency>
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```
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### 2. 使用 `ImageCaptchaGenerator`生成器生成验证码
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2. 使用 `SliderCaptchaTemplate`获取滑块验证码
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```java
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package example.readme;
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public static void main(String[] args) throws InterruptedException {
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SliderCaptchaResourceManager sliderCaptchaResourceManager = new DefaultSliderCaptchaResourceManager();
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DefaultSliderCaptchaTemplate sliderCaptchaTemplate = new DefaultSliderCaptchaTemplate(sliderCaptchaResourceManager, true);
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// 生成滑块图片
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SliderCaptchaInfo slideImageInfo = sliderCaptchaTemplate.getSlideImageInfo();
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// 获取背景图片的base64
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String backgroundImage = slideImageInfo.getBackgroundImage();
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// 获取滑块图片
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slideImageInfo.getSliderImage();
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// 获取滑块被背景图片的百分比， (校验图片使用)
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Float xPercent = slideImageInfo.getXPercent();
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import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
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import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
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import cloud.tianai.captcha.generator.common.model.dto.ImageCaptchaInfo;
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import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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import cloud.tianai.captcha.validator.ImageCaptchaValidator;
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import cloud.tianai.captcha.validator.impl.BasicCaptchaTrackValidator;
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import java.util.Map;
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public class Test {
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public static void main(String[] args) throws InterruptedException {
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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ImageCaptchaGenerator imageCaptchaGenerator = new MultiImageCaptchaGenerator(imageCaptchaResourceManager).init(true);
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/*
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生成滑块验证码图片, 可选项
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SLIDER (滑块验证码)
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ROTATE (旋转验证码)
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CONCAT (滑动还原验证码)
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WORD_IMAGE_CLICK (文字点选验证码)
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更多验证码支持 详见 cloud.tianai.captcha.common.constant.CaptchaTypeConstant
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*/
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ImageCaptchaInfo imageCaptchaInfo = imageCaptchaGenerator.generateCaptchaImage(CaptchaTypeConstant.SLIDER);
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System.out.println(imageCaptchaInfo);
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// 负责计算一些数据存到缓存中，用于校验使用
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// ImageCaptchaValidator负责校验用户滑动滑块是否正确和生成滑块的一些校验数据; 比如滑块到凹槽的百分比值
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ImageCaptchaValidator imageCaptchaValidator = new BasicCaptchaTrackValidator();
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// 这个map数据应该存到缓存中，校验的时候需要用到该数据
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Map<String, Object> map = imageCaptchaValidator.generateImageCaptchaValidData(imageCaptchaInfo);
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}
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}
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```
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### 3. 使用`ImageCaptchaValidator`校验器 验证
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```java
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package example.readme;
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import cloud.tianai.captcha.validator.ImageCaptchaValidator;
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import cloud.tianai.captcha.validator.common.model.dto.ImageCaptchaTrack;
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import cloud.tianai.captcha.validator.impl.BasicCaptchaTrackValidator;
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import java.util.Map;
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public class Test2 {
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public static void main(String[] args) {
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ImageCaptchaValidator sliderCaptchaValidator = new BasicCaptchaTrackValidator();
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ImageCaptchaTrack imageCaptchaTrack = null;
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Map<String, Object> map = null;
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Float percentage = null;
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// 用户传来的行为轨迹和进行校验
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// - imageCaptchaTrack为前端传来的滑动轨迹数据
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// - map 为生成验证码时缓存的map数据
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boolean check = sliderCaptchaValidator.valid(imageCaptchaTrack, map);
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// 如果只想校验用户是否滑到指定凹槽即可，也可以使用
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// - 参数1 用户传来的百分比数据
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// - 参数2 生成滑块是真实的百分比数据
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check = sliderCaptchaValidator.checkPercentage(0.2f, percentage);
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}
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}
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```
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## 整体架构设计
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> tianai-captcha 验证码整体分为 生成器(`ImageCaptchaGenerator`)、校验器(`ImageCaptchaValidator`)、资源管理器(`ImageCaptchaResourceManager`)
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> 其中生成器、校验器、资源管理器等都是基于接口模式实现 可插拔的，可以替换为自定义实现，灵活度高
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- 生成器(`ImageCaptchaGenerator`)
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- 主要负责生成行为验证码所需的图片
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- 校验器(`ImageCaptchaValidator`)
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- 主要负责校验用户滑动的行为轨迹是否合规
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- 资源管理器(`ImageCaptchaResourceManager`)
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- 主要负责读取验证码背景图片和模板图片等
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- 资源管理器细分为 资源存储(`ResourceStore`)、资源提供者(`ResourceProvider`)
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- 资源存储(`ResourceStore`) 负责存储背景图和模板图
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- 资源提供者(`ResourceProvider`) 负责将资源存储器中对应的资源转换为文件流
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- 一般资源存储器中存储的是图片的url地址或者id之类， 资源提供者 就是负责将url或者别的id转换为真正的图片文件
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## 扩展
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### 生成带有混淆滑块的图片
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```java
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package example.readme;
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import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
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import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
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import cloud.tianai.captcha.generator.common.model.dto.GenerateParam;
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import cloud.tianai.captcha.generator.common.model.dto.ImageCaptchaInfo;
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import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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public class Test3 {
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public static void main(String[] args) {
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// 资源管理器
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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// 标准验证码生成器
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ImageCaptchaGenerator imageCaptchaGenerator = new MultiImageCaptchaGenerator(imageCaptchaResourceManager).init(true);
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// 生成 具有混淆的 滑块验证码 (目前只有滑块验证码支持混淆滑块， 旋转验证，滑动还原，点选验证 均不支持混淆功能)
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ImageCaptchaInfo imageCaptchaInfo = imageCaptchaGenerator.generateCaptchaImage(GenerateParam.builder()
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.type(CaptchaTypeConstant.SLIDER)
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.sliderFormatName("jpeg")
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.backgroundFormatName("png")
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// 是否添加混淆滑块
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.obfuscate(true)
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.build());
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}
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}
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```
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### 生成webp格式的滑块图片
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```java
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package example.readme;
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import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
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import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
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import cloud.tianai.captcha.generator.common.model.dto.GenerateParam;
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import cloud.tianai.captcha.generator.common.model.dto.ImageCaptchaInfo;
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import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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public class Test4 {
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public static void main(String[] args) {
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// 资源管理器
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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// 标准验证码生成器
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ImageCaptchaGenerator imageCaptchaGenerator = new MultiImageCaptchaGenerator(imageCaptchaResourceManager).init(true);
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// 生成旋转验证码 图片类型为 webp
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// 注意 tianai-captcha-1.3.2 后面默认删除了生成webp格式图片需要用户自定义添加webp转换的工具，需要用户自定义添加和扩展
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// 参考 https://bitbucket.org/luciad/webp-imageio
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ImageCaptchaInfo slideImageInfo = imageCaptchaGenerator.generateCaptchaImage(GenerateParam.builder()
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.type(CaptchaTypeConstant.ROTATE)
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.sliderFormatName("webp")
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.backgroundFormatName("webp")
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.build());
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System.out.println(slideImageInfo);
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}
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}
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```
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### 添加自定义图片资源
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- 自定义图片资源大小为 590*360 格式为jpg
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```java
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package example.readme;
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import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.ResourceStore;
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import cloud.tianai.captcha.resource.common.model.dto.Resource;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.provider.ClassPathResourceProvider;
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import cloud.tianai.captcha.resource.impl.provider.URLResourceProvider;
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public class Test5 {
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public static void main(String[] args) {
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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// 通过资源管理器或者资源存储器
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ResourceStore resourceStore = imageCaptchaResourceManager.getResourceStore();
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// 添加classpath目录下的 aa.jpg 图片
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resourceStore.addResource(CaptchaTypeConstant.SLIDER, new Resource(ClassPathResourceProvider.NAME, "/aa.jpg"));
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// 添加远程url图片资源
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resourceStore.addResource(CaptchaTypeConstant.SLIDER,new Resource(URLResourceProvider.NAME, "http://www.xx.com/aa.jpg"));
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// 内置了通过url 和 classpath读取图片资源，如果想扩展可实现 ResourceProvider 接口，进行自定义扩展
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}
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}
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```
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### 添加自定义模板资源
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- 系统内置了2套模板，可以到QQ群:1021884609 文件中获取更多模板或者自己制作模板
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- 模板图片格式
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- 滑块验证码
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- 滑块大小为 110*110 格式为png
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- 凹槽大小为 110*110 格式为png
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- 模板大小为 110*360 格式为png，该图为固定格式，是一张纯透明图片
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- 旋转验证码
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- 滑块大小为 200*200 格式为png
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- 凹槽大小为 200*200 格式为png
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- 模板大小为 360*360 格式为png，该图为固定格式，是一张纯透明图片
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```java
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package example.readme;
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import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
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import cloud.tianai.captcha.generator.common.constant.SliderCaptchaConstant;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.ResourceStore;
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import cloud.tianai.captcha.resource.common.model.dto.Resource;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.provider.ClassPathResourceProvider;
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import java.util.HashMap;
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import java.util.Map;
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public class Test6 {
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public static void main(String[] args) {
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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// 通过资源管理器或者资源存储器
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ResourceStore resourceStore = imageCaptchaResourceManager.getResourceStore();
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// 添加滑块验证码模板.模板图片由三张图片组成
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Map<String, Resource> template1 = new HashMap<>(4);
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template1.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, "/active.png"));
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template1.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, "/fixed.png"));
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template1.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, "/matrix.png"));
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resourceStore.addTemplate(CaptchaTypeConstant.SLIDER,template1);
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// 模板与三张图片组成 滑块、凹槽、背景图
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// 同样默认支持 classpath 和 url 两种获取图片资源， 如果想扩展可实现 ResourceProvider 接口，进行自定义扩展
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}
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System.out.println(slideImageInfo);
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}
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```
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# 常用接口
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- 添加自定义图片资源
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```java
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ResourceStore resourceStore = sliderCaptchaResourceManager.getResourceStore();=
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// 添加classpath目录下的 aa.jpg 图片
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resourceStore.addResource(new Resource(ClassPathResourceProvider.NAME, "/aa.jpg"));
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// 添加远程url图片资源
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resourceStore.addResource(new Resource(URLResourceProvider.NAME, "http://www.xx.com/aa.jpg"));
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// 内置了通过url 和 classpath读取图片资源，如果想扩展可实现 ResourceProvider 接口，进行自定义扩展
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```
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- 添加自定义模板资源
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```java
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ResourceStore resourceStore = sliderCaptchaResourceManager.getResourceStore();=
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Map<String, Resource> template1 = new HashMap<>(4);
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template1.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME,"/active.png"));
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template1.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, "/fixed.png"));
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template1.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, "/matrix.png"));
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resourceStore.addTemplate(template1);
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// 模板与三张图片组成 滑块、凹槽、背景图
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// 同样默认支持 classpath 和 url 两种获取图片资源， 如果想扩展可实现 ResourceProvider 接口，进行自定义扩展
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```
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- 清除内置的图片资源和模板资源
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```java
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package example.readme;
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import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
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import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
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import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
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import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
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public class Test6 {
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public static void main(String[] args) {
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ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
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//为方便快速上手 系统本身自带了一张图片和两套滑块模板，如果不想用系统自带的可以不让它加载系统自带的
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// 第二个构造参数设置为false时将不加载默认的图片和模板
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ImageCaptchaGenerator imageCaptchaGenerator = new MultiImageCaptchaGenerator(imageCaptchaResourceManager).init(false);
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}
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}
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```
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### 自定义 `imageCaptchaValidator` 校验器
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```java
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// 该接口负责对用户滑动验证码后传回的数据进行校验，比如滑块是否滑到指定位置，滑块行为轨迹是否正常等等
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// 该接口的默认实现有
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// SimpleImageCaptchaValidator 校验用户是否滑到了指定缺口处
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// BasicCaptchaTrackValidator 是对 SimpleImageCaptchaValidator增强
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// BasicCaptchaTrackValidator是对SimpleImageCaptchaValidator的增强 对滑动轨迹进行了简单的验证
|
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// 友情提示 因为BasicCaptchaTrackValidator 里面校验滑动轨迹的算法已经开源，有强制要求的建议重写该接口的方法，避免被破解
|
||||
//为方便快速上手 系统本身自带了一张图片和两套滑块模板，如果不想用系统自带的可以不让它加载系统自带的
|
||||
// 第二个构造参数设置为false时将不加载默认的图片和模板
|
||||
SliderCaptchaTemplate sliderCaptchaTemplate = new DefaultSliderCaptchaTemplate(sliderCaptchaResourceManager, false);
|
||||
```
|
||||
|
||||
### 自定义 `ResourceProvider` 实现自定义文件读取策略， 比如 oss之类的
|
||||
|
||||
- 扩展，对`DefaultSliderCaptchaTemplate`增加了缓存模块
|
||||
```java
|
||||
package example.readme;
|
||||
public static void main(String[] args) throws InterruptedException {
|
||||
// 使用 CacheSliderCaptchaTemplate 对滑块验证码进行缓存，使其提前生成滑块图片
|
||||
// 参数一: 真正实现 滑块的 SliderCaptchaTemplate
|
||||
// 参数二: 默认提前缓存多少个
|
||||
// 参数三: 出错后 等待xx时间再进行生成
|
||||
// 参数四: 检查时间间隔
|
||||
SliderCaptchaResourceManager sliderCaptchaResourceManager = new DefaultSliderCaptchaResourceManager();
|
||||
DefaultSliderCaptchaTemplate sliderCaptchaTemplate = new CacheSliderCaptchaTemplate(new DefaultSliderCaptchaTemplate(sliderCaptchaResourceManager, true), 10, 1000, 100);
|
||||
// 生成滑块图片
|
||||
SliderCaptchaInfo slideImageInfo = sliderCaptchaTemplate.getSlideImageInfo();
|
||||
// 获取背景图片的base64
|
||||
String backgroundImage = slideImageInfo.getBackgroundImage();
|
||||
// 获取滑块图片
|
||||
slideImageInfo.getSliderImage();
|
||||
// 获取滑块被背景图片的百分比， (校验图片使用)
|
||||
Float xPercent = slideImageInfo.getXPercent();
|
||||
|
||||
import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
|
||||
import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
|
||||
import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
|
||||
import cloud.tianai.captcha.resource.ResourceProvider;
|
||||
import cloud.tianai.captcha.resource.common.model.dto.Resource;
|
||||
import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
|
||||
|
||||
import java.io.InputStream;
|
||||
|
||||
public class Test7 {
|
||||
public static void main(String[] args) {
|
||||
// 自定义 ResourceProvider
|
||||
ResourceProvider resourceProvider = new ResourceProvider() {
|
||||
@Override
|
||||
public InputStream getResourceInputStream(Resource data) {
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean supported(String type) {
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getName() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
|
||||
ImageCaptchaGenerator imageCaptchaGenerator = new MultiImageCaptchaGenerator(imageCaptchaResourceManager).init(false);
|
||||
// 注册
|
||||
imageCaptchaResourceManager.registerResourceProvider(resourceProvider);
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
### 扩展，对`StandardImageCaptchaGenerator`增加了缓存模块
|
||||
|
||||
> 由于实时生成滑块图片可能会有一点性能影响，内部基于`StandardSliderCaptchaGenerator`进行了提前缓存生成好的图片，`CacheSliderCaptchaGenerator` 这只是基本的缓存逻辑，比较简单，用户可以定义一些更加有意思的扩展，用于突破性能瓶颈
|
||||
|
||||
```java
|
||||
package example.readme;
|
||||
|
||||
import cloud.tianai.captcha.common.constant.CaptchaTypeConstant;
|
||||
import cloud.tianai.captcha.generator.ImageCaptchaGenerator;
|
||||
import cloud.tianai.captcha.generator.common.model.dto.ImageCaptchaInfo;
|
||||
import cloud.tianai.captcha.generator.impl.CacheImageCaptchaGenerator;
|
||||
import cloud.tianai.captcha.generator.impl.MultiImageCaptchaGenerator;
|
||||
import cloud.tianai.captcha.resource.ImageCaptchaResourceManager;
|
||||
import cloud.tianai.captcha.resource.impl.DefaultImageCaptchaResourceManager;
|
||||
|
||||
public class Test8 {
|
||||
public static void main(String[] args) throws InterruptedException {
|
||||
// 使用 CacheSliderCaptchaGenerator 对滑块验证码进行缓存，使其提前生成滑块图片
|
||||
// 参数一: 真正实现 滑块的 SliderCaptchaGenerator
|
||||
// 参数二: 默认提前缓存多少个
|
||||
// 参数三: 出错后 等待xx时间再进行生成
|
||||
// 参数四: 检查时间间隔
|
||||
ImageCaptchaResourceManager imageCaptchaResourceManager = new DefaultImageCaptchaResourceManager();
|
||||
ImageCaptchaGenerator imageCaptchaGenerator = new CacheImageCaptchaGenerator(new MultiImageCaptchaGenerator(imageCaptchaResourceManager), 10, 1000, 100);
|
||||
imageCaptchaGenerator.init(true);
|
||||
// 生成滑块图片
|
||||
ImageCaptchaInfo slideImageInfo = imageCaptchaGenerator.generateCaptchaImage(CaptchaTypeConstant.SLIDER);
|
||||
// 获取背景图片的base64
|
||||
String backgroundImage = slideImageInfo.getBackgroundImage();
|
||||
// 获取滑块图片
|
||||
String sliderImage = slideImageInfo.getSliderImage();
|
||||
System.out.println(slideImageInfo);
|
||||
}
|
||||
System.out.println(slideImageInfo);
|
||||
}
|
||||
```
|
||||
# qq群: 1021884609
|
||||
- 自定义 `ResourceProvider` 实现自定义文件读取策略， 比如 oss之类的
|
||||
|
||||
```java
|
||||
// 实现了 ResourceProvider 后
|
||||
SliderCaptchaResourceManager sliderCaptchaResourceManager = new DefaultSliderCaptchaResourceManager();
|
||||
DefaultSliderCaptchaTemplate sliderCaptchaTemplate = new DefaultSliderCaptchaTemplate(sliderCaptchaResourceManager, true);
|
||||
// 注册
|
||||
sliderCaptchaResourceManager.registerResourceProvider(new CustomResourceProvider());
|
||||
```
|
||||
- qq群: 1021884609
|
||||
Reference in New Issue
Block a user