mirror of
https://github.com/dromara/tianai-captcha.git
synced 2026-05-07 06:04:34 +08:00
1.更改架构
2.增加缓存池
This commit is contained in:
liushaofeng
@@ -4,7 +4,7 @@
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<modelVersion>4.0.0</modelVersion>
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<groupId>cloud.tianai.captcha</groupId>
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<artifactId>tianai-captcha</artifactId>
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<version>1.0.alpha</version>
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<version>1.0.beta</version>
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<name>tianai-captcha</name>
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<description>滑块验证码</description>
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@@ -0,0 +1,115 @@
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package cloud.tianai.captcha.template.slider;
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import lombok.SneakyThrows;
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import lombok.extern.slf4j.Slf4j;
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import java.net.URL;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Queue;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.ScheduledThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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@Slf4j
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public class CacheSliderCaptchaTemplate implements SliderCaptchaTemplate {
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private final ScheduledExecutorService scheduledExecutor = new ScheduledThreadPoolExecutor(1, new NamedThreadFactory("slider-captcha-queue"));
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private Queue<SliderCaptchaInfo> queue;
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private AtomicInteger pos = new AtomicInteger(0);
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private SliderCaptchaTemplate target;
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private int size;
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public CacheSliderCaptchaTemplate(SliderCaptchaTemplate target, int size) {
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this.target = target;
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init(size);
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}
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private void init(int z) {
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this.size = z;
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this.pos = new AtomicInteger(0);
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queue = new LinkedList<>();
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// 初始化一个队列扫描
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scheduledExecutor.scheduleAtFixedRate(() -> {
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while (pos.get() < this.size) {
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int count = pos.incrementAndGet();
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if (count > size) {
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return;
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}
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SliderCaptchaInfo slideImageInfo = target.getSlideImageInfo();
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queue.add(slideImageInfo);
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}
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}, 0, 100, TimeUnit.MILLISECONDS);
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}
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@SneakyThrows
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@Override
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public SliderCaptchaInfo getSlideImageInfo() {
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while (true) {
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int i = pos.get();
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if (i > 0) {
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if (pos.compareAndSet(i, i - 1)) {
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SliderCaptchaInfo poll = queue.poll();
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if (poll != null) {
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return poll;
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}
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}
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}
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// 休眠100毫秒
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TimeUnit.MILLISECONDS.sleep(100);
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}
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}
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public static void main(String[] args) throws InterruptedException {
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SliderCaptchaTemplate captchaTemplate = new DefaultSliderCaptchaTemplate("webp", "webp", true);
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captchaTemplate = new CacheSliderCaptchaTemplate(captchaTemplate, 20);
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TimeUnit.SECONDS.sleep(5);
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for (int i = 0; i < 100; i++) {
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long start = System.currentTimeMillis();
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SliderCaptchaInfo info = captchaTemplate.getSlideImageInfo();
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long end = System.currentTimeMillis();
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System.out.println("耗时:" + (end - start));
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TimeUnit.MILLISECONDS.sleep(10);
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}
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}
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@Override
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public void addResource(URL url) {
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target.addResource(url);
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}
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@Override
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public void addTemplate(Map<String, URL> template) {
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target.addTemplate(template);
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}
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@Override
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public void setResource(List<URL> resources) {
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target.setResource(resources);
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}
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@Override
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public void setTemplates(List<Map<String, URL>> imageTemplates) {
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target.setTemplates(imageTemplates);
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}
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@Override
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public void deleteResource(URL resource) {
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target.deleteResource(resource);
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}
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@Override
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public void deleteTemplate(Map<String, URL> template) {
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target.deleteTemplate(template);
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}
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@Override
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public boolean percentageContrast(Float newPercentage, Float oriPercentage) {
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return target.percentageContrast(newPercentage, oriPercentage);
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}
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}
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@@ -0,0 +1,436 @@
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package cloud.tianai.captcha.template.slider;
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import lombok.SneakyThrows;
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import javax.imageio.ImageIO;
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import java.awt.*;
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import java.awt.geom.Area;
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import java.awt.image.BufferedImage;
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import java.awt.image.ColorModel;
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import java.awt.image.PixelGrabber;
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import java.awt.image.WritableRaster;
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import java.io.ByteArrayOutputStream;
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import java.net.URL;
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import java.util.List;
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import java.util.*;
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import java.util.concurrent.ThreadLocalRandom;
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import java.util.concurrent.atomic.AtomicBoolean;
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/**
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* @Author: 天爱有情
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* @Date 2020/5/29 8:06
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* @Description 滑块验证码模板
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*/
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public class DefaultSliderCaptchaTemplate implements SliderCaptchaTemplate {
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/**
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* 默认的resource资源文件路径.
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*/
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public static final String DEFAULT_SLIDER_IMAGE_RESOURCE_PATH = "META-INF/cut-image/resource";
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/**
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* 默认的template资源文件路径.
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*/
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public static final String DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH = "META-INF/cut-image/template";
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public static final String ACTIVE_IMAGE_NAME = "active.png";
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public static final String CUT_IMAGE_NAME = "cut.png";
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public static final String FIXED_IMAGE_NAME = "fixed.png";
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public static final String MATRIX_IMAGE_NAME = "matrix.png";
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/**
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* resource图片.
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*/
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private List<URL> resourceImageFiles = new ArrayList<>(20);
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/**
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* 模板图片.
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*/
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private List<Map<String, URL>> templateImageFiles = new ArrayList<>(2);
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protected String targetFormatName = "jpeg";
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protected String matrixFormatName = "png";
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public void initDefaultResource() {
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// 添加一些系统的资源文件
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/1.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/2.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/3.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/4.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/5.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/6.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/7.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/8.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/9.jpg")));
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addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/10.jpg")));
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// 添加一些系统的 模板文件
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Map<String, URL> template1 = new HashMap<>(4);
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template1.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/active.png")));
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template1.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/cut.png")));
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template1.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/fixed.png")));
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template1.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/matrix.png")));
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addTemplate(template1);
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Map<String, URL> template2 = new HashMap<>(4);
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template2.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/active.png")));
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template2.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/cut.png")));
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template2.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/fixed.png")));
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template2.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/matrix.png")));
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addTemplate(template2);
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Map<String, URL> template3 = new HashMap<>(4);
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template3.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/active.png")));
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template3.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/cut.png")));
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template3.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/fixed.png")));
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template3.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/matrix.png")));
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addTemplate(template3);
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}
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private final AtomicBoolean loadResources = new AtomicBoolean(false);
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private String sliderImageResourcePath = DEFAULT_SLIDER_IMAGE_RESOURCE_PATH;
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private String sliderImageTemplatePath = DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH;
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public DefaultSliderCaptchaTemplate(boolean initDefaultResource) {
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// 加载系统资源文件
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if (initDefaultResource) {
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initDefaultResource();
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}
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}
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public DefaultSliderCaptchaTemplate(String targetFormatName, String matrixFormatName, boolean initDefaultResource) {
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this.targetFormatName = targetFormatName;
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this.matrixFormatName = matrixFormatName;
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if (initDefaultResource) {
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initDefaultResource();
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}
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}
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public DefaultSliderCaptchaTemplate(String targetFormatName,
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String matrixFormatName,
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String sliderImageResourcePath,
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String sliderImageTemplatePath,
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List<URL> r,
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List<Map<String, URL>> t,
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boolean initDefaultResource) {
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this.targetFormatName = targetFormatName;
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this.matrixFormatName = matrixFormatName;
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this.sliderImageResourcePath = sliderImageResourcePath;
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this.sliderImageTemplatePath = sliderImageTemplatePath;
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resourceImageFiles = r;
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templateImageFiles = t;
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if (initDefaultResource) {
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initDefaultResource();
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}
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}
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public DefaultSliderCaptchaTemplate(List<URL> r, List<Map<String, URL>> t, boolean initDefaultResource) {
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resourceImageFiles = r;
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templateImageFiles = t;
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if (initDefaultResource) {
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initDefaultResource();
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}
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}
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@Override
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public void addResource(URL url) {
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resourceImageFiles.remove(url);
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resourceImageFiles.add(url);
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}
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@Override
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public void setResource(List<URL> resources) {
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resourceImageFiles = resources;
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}
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@Override
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public void setTemplates(List<Map<String, URL>> imageTemplates) {
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templateImageFiles = imageTemplates;
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}
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@Override
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public void deleteResource(URL resource) {
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resourceImageFiles.remove(resource);
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}
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@Override
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public void deleteTemplate(Map<String, URL> template) {
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templateImageFiles.remove(template);
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}
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@Override
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public void addTemplate(Map<String, URL> template) {
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templateImageFiles.remove(template);
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templateImageFiles.add(template);
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}
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private static ClassLoader getClassLoader() {
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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if (classLoader == null) {
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classLoader = DefaultSliderCaptchaTemplate.getClassLoader();
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}
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if (classLoader == null) {
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classLoader = ClassLoader.getSystemClassLoader();
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}
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return classLoader;
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}
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@Override
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public SliderCaptchaInfo getSlideImageInfo() {
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return getSlideImageInfo(this.targetFormatName, this.matrixFormatName);
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}
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@SneakyThrows
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public SliderCaptchaInfo getSlideImageInfo(String targetFormatName, String matrixFormatName) {
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URL resourceImage = getRandomResourceImage();
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Map<String, URL> templateImages = getRandomTemplateImages();
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BufferedImage cutBackground = warpFile2BufferedImage(resourceImage);
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// 拷贝一份图片
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BufferedImage targetBackground = deepCopyBufferedImage(cutBackground);
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BufferedImage fixedTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, FIXED_IMAGE_NAME));
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BufferedImage activeTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, ACTIVE_IMAGE_NAME));
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BufferedImage matrixTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, MATRIX_IMAGE_NAME));
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// BufferedImage cutTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, CUT_IMAGE_NAME));
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// 获取随机的 x 和 y 轴
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int randomX = ThreadLocalRandom.current().nextInt(targetBackground.getWidth() - fixedTemplate.getWidth() * 2) + fixedTemplate.getWidth();
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int randomY = ThreadLocalRandom.current().nextInt(targetBackground.getHeight() - fixedTemplate.getHeight());
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coverImage(targetBackground, fixedTemplate, randomX, randomY);
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BufferedImage cutImage = cutImage(cutBackground, fixedTemplate, randomX, randomY);
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coverImage(cutImage, activeTemplate, 0, 0);
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coverImage(matrixTemplate, cutImage, 0, randomY);
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// 计算滑块百分比
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Float xPercent = (float) randomX / targetBackground.getWidth();
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String backGroundImageBase64 = transformBase64(targetBackground, targetFormatName);
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String sliderImageBase64 = transformBase64(matrixTemplate, matrixFormatName);
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return SliderCaptchaInfo.of(randomX, xPercent, randomY, backGroundImageBase64, sliderImageBase64);
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}
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/**
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* 百分比对比
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*
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* @param newPercentage 用户百分比
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* @param oriPercentage 原百分比
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* @return true 成功 false 失败
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*/
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@Override
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public boolean percentageContrast(Float newPercentage, Float oriPercentage) {
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if (newPercentage == null || Float.isNaN(newPercentage) || Float.isInfinite(newPercentage)
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|| oriPercentage == null || Float.isNaN(oriPercentage) || Float.isInfinite(oriPercentage)) {
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return false;
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}
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// 容错值
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float tolerant = 0.02f;
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float maxTolerant = oriPercentage + tolerant;
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float minTolerant = oriPercentage - tolerant;
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return newPercentage >= minTolerant && newPercentage <= maxTolerant;
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}
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private String transformBase64(BufferedImage bufferedImage, String formatName) {
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byte[] data = null;
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try (ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream()) {
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ImageIO.write(bufferedImage, formatName, byteArrayOutputStream);
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//转换成字节码
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data = byteArrayOutputStream.toByteArray();
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} catch (Exception e) {
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System.out.println(e.getMessage());
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}
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String base64 = Base64.getEncoder().encodeToString(data);
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return "data:image/" + formatName + ";base64,".concat(base64);
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}
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/**
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* 通过模板图片抠图（不透明部分）
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*
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* @param origin 源图片
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* @param template 模板图片
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* @param x 坐标轴x
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* @param y 坐标轴y
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* @return BufferedImage
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*/
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@SneakyThrows
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private static BufferedImage cutImage(BufferedImage origin, BufferedImage template, int x, int y) {
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int bw = template.getWidth(null);
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int bh = template.getHeight(null);
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int lw = origin.getWidth(null);
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int lh = origin.getHeight(null);
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//得到透明的区域(人物轮廓)
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Shape imageShape = getImageShape(template, false);
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//合成后的图片
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BufferedImage image = new BufferedImage(bw, bh, BufferedImage.TYPE_INT_ARGB);
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Graphics2D graphics = image.createGraphics();
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//设置画布为透明
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image = graphics.getDeviceConfiguration().createCompatibleImage(bw, bh, Transparency.TRANSLUCENT);
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graphics.dispose();
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Graphics2D graphics2 = image.createGraphics();
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//取交集(限制可以画的范围为shape的范围)
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graphics2.clip(imageShape);
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//抗锯齿
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graphics2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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graphics2.setStroke(new BasicStroke(5, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
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graphics2.drawImage(origin, -x, -y, lw, lh, null);
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graphics2.dispose();
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return image;
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}
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/**
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* 深度拷贝图片
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*
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* @param bi 原图片
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* @return BufferedImage
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*/
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public static BufferedImage deepCopyBufferedImage(BufferedImage bi) {
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ColorModel cm = bi.getColorModel();
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boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
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||||
WritableRaster raster = bi.copyData(bi.getRaster().createCompatibleWritableRaster());
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return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
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||||
}
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||||
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/**
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||||
* 将Image图像中的透明/不透明部分转换为Shape图形
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||||
*
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||||
* @param img 图片信息
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||||
* @param transparent 是否透明
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||||
* @return Shape
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||||
* @throws InterruptedException 异常
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||||
*/
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||||
public static Shape getImageShape(Image img, boolean transparent) throws InterruptedException {
|
||||
ArrayList<Integer> x = new ArrayList<>();
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||||
ArrayList<Integer> y = new ArrayList<>();
|
||||
int width = img.getWidth(null);
|
||||
int height = img.getHeight(null);
|
||||
|
||||
// 首先获取图像所有的像素信息
|
||||
PixelGrabber pgr = new PixelGrabber(img, 0, 0, -1, -1, true);
|
||||
pgr.grabPixels();
|
||||
int[] pixels = (int[]) pgr.getPixels();
|
||||
|
||||
// 循环像素
|
||||
for (int i = 0; i < pixels.length; i++) {
|
||||
// 筛选，将不透明的像素的坐标加入到坐标ArrayList x和y中
|
||||
int alpha = (pixels[i] >> 24) & 0xff;
|
||||
if (alpha != 0) {
|
||||
x.add(i % width > 0 ? i % width - 1 : 0);
|
||||
y.add(i % width == 0 ? (i == 0 ? 0 : i / width - 1) : i / width);
|
||||
}
|
||||
}
|
||||
|
||||
// 建立图像矩阵并初始化(0为透明,1为不透明)
|
||||
int[][] matrix = new int[height][width];
|
||||
for (int i = 0; i < height; i++) {
|
||||
for (int j = 0; j < width; j++) {
|
||||
matrix[i][j] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
// 导入坐标ArrayList中的不透明坐标信息
|
||||
for (int c = 0; c < x.size(); c++) {
|
||||
matrix[y.get(c)][x.get(c)] = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* 逐一水平"扫描"图像矩阵的每一行，将透明（这里也可以取不透明的）的像素生成为Rectangle，
|
||||
* 再将每一行的Rectangle通过Area类的rec对象进行合并， 最后形成一个完整的Shape图形
|
||||
*/
|
||||
Area rec = new Area();
|
||||
int temp = 0;
|
||||
//生成Shape时是1取透明区域还是取非透明区域的flag
|
||||
int flag = transparent ? 0 : 1;
|
||||
|
||||
for (int i = 0; i < height; i++) {
|
||||
for (int j = 0; j < width; j++) {
|
||||
if (matrix[i][j] == flag) {
|
||||
if (temp == 0) {
|
||||
temp = j;
|
||||
}
|
||||
if (j == width) {
|
||||
if (temp == 0) {
|
||||
rec.add(new Area(new Rectangle(j, i, 1, 1)));
|
||||
} else {
|
||||
rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
|
||||
temp = 0;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (temp != 0) {
|
||||
rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
|
||||
temp = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
temp = 0;
|
||||
}
|
||||
return rec;
|
||||
}
|
||||
|
||||
/**
|
||||
* 图片覆盖（覆盖图压缩到width*height大小，覆盖到底图上）
|
||||
*
|
||||
* @param baseBufferedImage 底图
|
||||
* @param coverBufferedImage 覆盖图
|
||||
* @param x 起始x轴
|
||||
* @param y 起始y轴
|
||||
*/
|
||||
private static void coverImage(BufferedImage baseBufferedImage, BufferedImage coverBufferedImage,
|
||||
int x, int y) {
|
||||
// 创建Graphics2D对象，用在底图对象上绘图
|
||||
Graphics2D g2d = baseBufferedImage.createGraphics();
|
||||
// 绘制
|
||||
g2d.drawImage(coverBufferedImage, x, y, coverBufferedImage.getWidth(), coverBufferedImage.getHeight(), null);
|
||||
// 释放图形上下文使用的系统资源
|
||||
g2d.dispose();
|
||||
}
|
||||
|
||||
private URL getTemplateFile(Map<String, URL> templateImages, String imageName) {
|
||||
URL url = templateImages.get(imageName);
|
||||
if (url == null) {
|
||||
throw new IllegalArgumentException("查找模板异常， 该模板下未找到 ");
|
||||
}
|
||||
return url;
|
||||
}
|
||||
|
||||
private Map<String, URL> getRandomTemplateImages() {
|
||||
if (templateImageFiles.size() == 1) {
|
||||
return templateImageFiles.get(0);
|
||||
}
|
||||
int templateNo = ThreadLocalRandom.current().nextInt(templateImageFiles.size());
|
||||
return templateImageFiles.get(templateNo);
|
||||
}
|
||||
|
||||
@SneakyThrows
|
||||
private static BufferedImage warpFile2BufferedImage(URL resourceImage) {
|
||||
if (resourceImage == null) {
|
||||
throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
|
||||
}
|
||||
return ImageIO.read(resourceImage);
|
||||
}
|
||||
|
||||
private URL getRandomResourceImage() {
|
||||
int targetNo = ThreadLocalRandom.current().nextInt(resourceImageFiles.size());
|
||||
return resourceImageFiles.get(targetNo);
|
||||
}
|
||||
|
||||
// public static void main(String[] args) throws InterruptedException {
|
||||
// DefaultSliderCaptchaTemplate sliderCaptchaTemplate = new DefaultSliderCaptchaTemplate();
|
||||
// // 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();
|
||||
// }
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
package cloud.tianai.captcha.template.slider;
|
||||
|
||||
import java.util.concurrent.ThreadFactory;
|
||||
import java.util.concurrent.atomic.AtomicInteger;
|
||||
|
||||
/**
|
||||
* A ThreadFactory that allows for custom thread names.
|
||||
*/
|
||||
public class NamedThreadFactory implements ThreadFactory {
|
||||
|
||||
private static final AtomicInteger THREAD_INDEX = new AtomicInteger(0);
|
||||
|
||||
private final String basename;
|
||||
private final boolean daemon;
|
||||
|
||||
/**
|
||||
* Creates a new instance of the factory.
|
||||
*
|
||||
* @param basename Basename of a new tread created by this factory.
|
||||
*/
|
||||
public NamedThreadFactory(final String basename) {
|
||||
this(basename, true);
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new instance of the factory.
|
||||
*
|
||||
* @param basename Basename of a new tread created by this factory.
|
||||
* @param daemon If true, marks new thread as a daemon thread
|
||||
*/
|
||||
public NamedThreadFactory(final String basename, final boolean daemon) {
|
||||
|
||||
this.basename = basename;
|
||||
this.daemon = daemon;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Thread newThread(final Runnable runnable) {
|
||||
|
||||
final Thread thread = new Thread(runnable, basename + "-" + THREAD_INDEX.getAndIncrement());
|
||||
thread.setDaemon(daemon);
|
||||
return thread;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,54 @@
|
||||
package cloud.tianai.captcha.template.slider;
|
||||
|
||||
import java.net.URL;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* @Author: 天爱有情
|
||||
* @date 2020/10/19 18:38
|
||||
* @Description 滑块验证码资源
|
||||
*/
|
||||
public interface SliderCaptchaResource {
|
||||
/**
|
||||
* 添加资源
|
||||
*
|
||||
* @param url url
|
||||
*/
|
||||
void addResource(URL url);
|
||||
|
||||
/**
|
||||
* 添加模板
|
||||
*
|
||||
* @param template template
|
||||
*/
|
||||
void addTemplate(Map<String, URL> template);
|
||||
|
||||
/**
|
||||
* 设置资源
|
||||
*
|
||||
* @param resources resources
|
||||
*/
|
||||
void setResource(List<URL> resources);
|
||||
|
||||
/**
|
||||
* 设置模板
|
||||
*
|
||||
* @param imageTemplates imageTemplates
|
||||
*/
|
||||
void setTemplates(List<Map<String, URL>> imageTemplates);
|
||||
|
||||
/**
|
||||
* 删除资源
|
||||
*
|
||||
* @param resource resource
|
||||
*/
|
||||
void deleteResource(URL resource);
|
||||
|
||||
/**
|
||||
* 删除模板
|
||||
*
|
||||
* @param template template
|
||||
*/
|
||||
void deleteTemplate(Map<String, URL> template);
|
||||
}
|
||||
@@ -1,181 +1,18 @@
|
||||
package cloud.tianai.captcha.template.slider;
|
||||
|
||||
import lombok.SneakyThrows;
|
||||
|
||||
import javax.imageio.ImageIO;
|
||||
import java.awt.*;
|
||||
import java.awt.geom.Area;
|
||||
import java.awt.image.BufferedImage;
|
||||
import java.awt.image.ColorModel;
|
||||
import java.awt.image.PixelGrabber;
|
||||
import java.awt.image.WritableRaster;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.math.BigDecimal;
|
||||
import java.net.URL;
|
||||
import java.util.List;
|
||||
import java.util.*;
|
||||
import java.util.concurrent.ThreadLocalRandom;
|
||||
import java.util.concurrent.atomic.AtomicBoolean;
|
||||
|
||||
/**
|
||||
* @Author: 天爱有情
|
||||
* @Date 2020/5/29 8:06
|
||||
* @date 2020/10/19 18:37
|
||||
* @Description 滑块验证码模板
|
||||
*/
|
||||
public class SliderCaptchaTemplate {
|
||||
public interface SliderCaptchaTemplate extends SliderCaptchaResource {
|
||||
|
||||
/** 默认的resource资源文件路径.*/
|
||||
public static final String DEFAULT_SLIDER_IMAGE_RESOURCE_PATH = "META-INF/cut-image/resource";
|
||||
/** 默认的template资源文件路径.*/
|
||||
public static final String DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH = "META-INF/cut-image/template";
|
||||
|
||||
public static final String ACTIVE_IMAGE_NAME = "active.png";
|
||||
public static final String CUT_IMAGE_NAME = "cut.png";
|
||||
public static final String FIXED_IMAGE_NAME = "fixed.png";
|
||||
public static final String MATRIX_IMAGE_NAME = "matrix.png";
|
||||
|
||||
/** resource图片.*/
|
||||
private static List<URL> resourceImageFiles = new ArrayList<>(20);
|
||||
/** 模板图片.*/
|
||||
private static List<Map<String, URL>> templateImageFiles = new ArrayList<>(2);
|
||||
|
||||
static {
|
||||
// 添加一些系统的资源文件
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/1.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/2.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/3.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/4.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/5.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/6.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/7.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/8.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/9.jpg")));
|
||||
addResource(getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/10.jpg")));
|
||||
|
||||
// 添加一些系统的 模板文件
|
||||
Map<String, URL> template1 = new HashMap<>(4);
|
||||
template1.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/active.png")));
|
||||
template1.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/cut.png")));
|
||||
template1.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/fixed.png")));
|
||||
template1.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/matrix.png")));
|
||||
addTemplate(template1);
|
||||
|
||||
|
||||
Map<String, URL> template2 = new HashMap<>(4);
|
||||
template2.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/active.png")));
|
||||
template2.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/cut.png")));
|
||||
template2.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/fixed.png")));
|
||||
template2.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/matrix.png")));
|
||||
addTemplate(template2);
|
||||
|
||||
Map<String, URL> template3 = new HashMap<>(4);
|
||||
template3.put(ACTIVE_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/active.png")));
|
||||
template3.put(CUT_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/cut.png")));
|
||||
template3.put(FIXED_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/fixed.png")));
|
||||
template3.put(MATRIX_IMAGE_NAME, getClassLoader().getResource(DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/3/matrix.png")));
|
||||
addTemplate(template3);
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
private final AtomicBoolean loadResources = new AtomicBoolean(false);
|
||||
|
||||
private String sliderImageResourcePath = DEFAULT_SLIDER_IMAGE_RESOURCE_PATH;
|
||||
private String sliderImageTemplatePath = DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH;
|
||||
|
||||
public SliderCaptchaTemplate() {
|
||||
// 加载系统资源文件
|
||||
}
|
||||
|
||||
|
||||
public SliderCaptchaTemplate(String sliderImageResourcePath, String sliderImageTemplatePath) {
|
||||
this.sliderImageResourcePath = sliderImageResourcePath;
|
||||
this.sliderImageTemplatePath = sliderImageTemplatePath;
|
||||
// 加载系统资源文件
|
||||
}
|
||||
|
||||
public SliderCaptchaTemplate(List<URL> r, List<Map<String, URL>> t) {
|
||||
resourceImageFiles = r;
|
||||
templateImageFiles = t;
|
||||
}
|
||||
|
||||
public static void addResource(URL url) {
|
||||
resourceImageFiles.remove(url);
|
||||
resourceImageFiles.add(url);
|
||||
}
|
||||
|
||||
public static void setResource(List<URL> resources) {
|
||||
resourceImageFiles = resources;
|
||||
}
|
||||
|
||||
public static void setTemplates(List<Map<String, URL>> imageTemplates) {
|
||||
templateImageFiles = imageTemplates;
|
||||
}
|
||||
|
||||
public static void deleteResource(URL resource) {
|
||||
resourceImageFiles.remove(resource);
|
||||
}
|
||||
|
||||
public static void deleteTemplate(Map<String, URL> template) {
|
||||
templateImageFiles.remove(template);
|
||||
}
|
||||
|
||||
public static void addTemplate(Map<String, URL> template) {
|
||||
templateImageFiles.remove(template);
|
||||
templateImageFiles.add(template);
|
||||
}
|
||||
|
||||
private static ClassLoader getClassLoader() {
|
||||
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
|
||||
if (classLoader == null) {
|
||||
classLoader = SliderCaptchaTemplate.getClassLoader();
|
||||
}
|
||||
if (classLoader == null) {
|
||||
classLoader = ClassLoader.getSystemClassLoader();
|
||||
}
|
||||
return classLoader;
|
||||
}
|
||||
|
||||
public SliderCaptchaInfo getSlideImageInfo(){
|
||||
return getSlideImageInfo("jpg", "png");
|
||||
}
|
||||
|
||||
public SliderCaptchaInfo getSlideImageInfoForWebp(){
|
||||
return getSlideImageInfo("webp", "webp");
|
||||
}
|
||||
|
||||
|
||||
@SneakyThrows
|
||||
public SliderCaptchaInfo getSlideImageInfo(String targetFormatName, String matrixFormatName) {
|
||||
URL resourceImage = getRandomResourceImage();
|
||||
Map<String, URL> templateImages = getRandomTemplateImages();
|
||||
|
||||
BufferedImage cutBackground = warpFile2BufferedImage(resourceImage);
|
||||
// 拷贝一份图片
|
||||
BufferedImage targetBackground = deepCopyBufferedImage(cutBackground);
|
||||
|
||||
BufferedImage fixedTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, FIXED_IMAGE_NAME));
|
||||
BufferedImage activeTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, ACTIVE_IMAGE_NAME));
|
||||
BufferedImage matrixTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, MATRIX_IMAGE_NAME));
|
||||
// BufferedImage cutTemplate = warpFile2BufferedImage(getTemplateFile(templateImages, CUT_IMAGE_NAME));
|
||||
|
||||
// 获取随机的 x 和 y 轴
|
||||
int randomX = ThreadLocalRandom.current().nextInt(targetBackground.getWidth() - fixedTemplate.getWidth() * 2) + fixedTemplate.getWidth();
|
||||
int randomY =ThreadLocalRandom.current().nextInt(targetBackground.getHeight() - fixedTemplate.getHeight());
|
||||
|
||||
coverImage(targetBackground, fixedTemplate, randomX, randomY);
|
||||
BufferedImage cutImage = cutImage(cutBackground, fixedTemplate, randomX, randomY);
|
||||
coverImage(cutImage, activeTemplate, 0, 0);
|
||||
coverImage(matrixTemplate, cutImage, 0, randomY);
|
||||
// 计算滑块百分比
|
||||
Float xPercent = (float) randomX / targetBackground.getWidth();
|
||||
|
||||
String backGroundImageBase64 = transformBase64(targetBackground, targetFormatName);
|
||||
String sliderImageBase64 = transformBase64(matrixTemplate, matrixFormatName);
|
||||
|
||||
return SliderCaptchaInfo.of(randomX, xPercent, randomY, backGroundImageBase64, sliderImageBase64);
|
||||
}
|
||||
/**
|
||||
* 获取滑块验证码
|
||||
*
|
||||
* @return SliderCaptchaInfo
|
||||
*/
|
||||
SliderCaptchaInfo getSlideImageInfo();
|
||||
|
||||
/**
|
||||
* 百分比对比
|
||||
@@ -184,213 +21,5 @@ public class SliderCaptchaTemplate {
|
||||
* @param oriPercentage 原百分比
|
||||
* @return true 成功 false 失败
|
||||
*/
|
||||
public boolean percentageContrast(Float newPercentage, Float oriPercentage) {
|
||||
if (newPercentage == null || Float.isNaN(newPercentage) || Float.isInfinite(newPercentage)
|
||||
|| oriPercentage == null || Float.isNaN(oriPercentage) || Float.isInfinite(oriPercentage)) {
|
||||
return false;
|
||||
}
|
||||
// 容错值
|
||||
float tolerant = 0.02f;
|
||||
float maxTolerant = oriPercentage + tolerant;
|
||||
float minTolerant = oriPercentage - tolerant;
|
||||
return newPercentage >= minTolerant && newPercentage <= maxTolerant;
|
||||
}
|
||||
|
||||
|
||||
private String transformBase64(BufferedImage bufferedImage, String formatName) {
|
||||
byte[] data = null;
|
||||
try (ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream()) {
|
||||
ImageIO.write(bufferedImage, formatName, byteArrayOutputStream);
|
||||
//转换成字节码
|
||||
data = byteArrayOutputStream.toByteArray();
|
||||
} catch (Exception e) {
|
||||
System.out.println(e.getMessage());
|
||||
}
|
||||
String base64 = Base64.getEncoder().encodeToString(data);
|
||||
return "data:image/"+formatName+";base64,".concat(base64);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 通过模板图片抠图（不透明部分）
|
||||
*
|
||||
* @param origin 源图片
|
||||
* @param template 模板图片
|
||||
* @param x 坐标轴x
|
||||
* @param y 坐标轴y
|
||||
* @return BufferedImage
|
||||
*/
|
||||
@SneakyThrows
|
||||
private static BufferedImage cutImage(BufferedImage origin, BufferedImage template, int x, int y) {
|
||||
int bw = template.getWidth(null);
|
||||
int bh = template.getHeight(null);
|
||||
int lw = origin.getWidth(null);
|
||||
int lh = origin.getHeight(null);
|
||||
//得到透明的区域(人物轮廓)
|
||||
Shape imageShape = getImageShape(template, false);
|
||||
//合成后的图片
|
||||
BufferedImage image = new BufferedImage(bw, bh, BufferedImage.TYPE_INT_ARGB);
|
||||
Graphics2D graphics = image.createGraphics();
|
||||
//设置画布为透明
|
||||
image = graphics.getDeviceConfiguration().createCompatibleImage(bw, bh, Transparency.TRANSLUCENT);
|
||||
graphics.dispose();
|
||||
Graphics2D graphics2 = image.createGraphics();
|
||||
//取交集(限制可以画的范围为shape的范围)
|
||||
graphics2.clip(imageShape);
|
||||
//抗锯齿
|
||||
graphics2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
|
||||
graphics2.setStroke(new BasicStroke(5, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
|
||||
graphics2.drawImage(origin, -x, -y, lw, lh, null);
|
||||
graphics2.dispose();
|
||||
return image;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 深度拷贝图片
|
||||
* @param bi 原图片
|
||||
* @return BufferedImage
|
||||
*/
|
||||
public static BufferedImage deepCopyBufferedImage(BufferedImage bi) {
|
||||
ColorModel cm = bi.getColorModel();
|
||||
boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
|
||||
WritableRaster raster = bi.copyData(bi.getRaster().createCompatibleWritableRaster());
|
||||
return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* 将Image图像中的透明/不透明部分转换为Shape图形
|
||||
*
|
||||
* @param img 图片信息
|
||||
* @param transparent 是否透明
|
||||
* @return Shape
|
||||
* @throws InterruptedException 异常
|
||||
*/
|
||||
public static Shape getImageShape(Image img, boolean transparent) throws InterruptedException {
|
||||
ArrayList<Integer> x = new ArrayList<>();
|
||||
ArrayList<Integer> y = new ArrayList<>();
|
||||
int width = img.getWidth(null);
|
||||
int height = img.getHeight(null);
|
||||
|
||||
// 首先获取图像所有的像素信息
|
||||
PixelGrabber pgr = new PixelGrabber(img, 0, 0, -1, -1, true);
|
||||
pgr.grabPixels();
|
||||
int[] pixels = (int[]) pgr.getPixels();
|
||||
|
||||
// 循环像素
|
||||
for (int i = 0; i < pixels.length; i++) {
|
||||
// 筛选，将不透明的像素的坐标加入到坐标ArrayList x和y中
|
||||
int alpha = (pixels[i] >> 24) & 0xff;
|
||||
if (alpha != 0) {
|
||||
x.add(i % width > 0 ? i % width - 1 : 0);
|
||||
y.add(i % width == 0 ? (i == 0 ? 0 : i / width - 1) : i / width);
|
||||
}
|
||||
}
|
||||
|
||||
// 建立图像矩阵并初始化(0为透明,1为不透明)
|
||||
int[][] matrix = new int[height][width];
|
||||
for (int i = 0; i < height; i++) {
|
||||
for (int j = 0; j < width; j++) {
|
||||
matrix[i][j] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
// 导入坐标ArrayList中的不透明坐标信息
|
||||
for (int c = 0; c < x.size(); c++) {
|
||||
matrix[y.get(c)][x.get(c)] = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* 逐一水平"扫描"图像矩阵的每一行，将透明（这里也可以取不透明的）的像素生成为Rectangle，
|
||||
* 再将每一行的Rectangle通过Area类的rec对象进行合并， 最后形成一个完整的Shape图形
|
||||
*/
|
||||
Area rec = new Area();
|
||||
int temp = 0;
|
||||
//生成Shape时是1取透明区域还是取非透明区域的flag
|
||||
int flag = transparent ? 0 : 1;
|
||||
|
||||
for (int i = 0; i < height; i++) {
|
||||
for (int j = 0; j < width; j++) {
|
||||
if (matrix[i][j] == flag) {
|
||||
if (temp == 0) {
|
||||
temp = j;
|
||||
}
|
||||
if (j == width) {
|
||||
if (temp == 0) {
|
||||
rec.add(new Area(new Rectangle(j, i, 1, 1)));
|
||||
} else {
|
||||
rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
|
||||
temp = 0;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (temp != 0) {
|
||||
rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
|
||||
temp = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
temp = 0;
|
||||
}
|
||||
return rec;
|
||||
}
|
||||
|
||||
/**
|
||||
* 图片覆盖（覆盖图压缩到width*height大小，覆盖到底图上）
|
||||
*
|
||||
* @param baseBufferedImage 底图
|
||||
* @param coverBufferedImage 覆盖图
|
||||
* @param x 起始x轴
|
||||
* @param y 起始y轴
|
||||
*/
|
||||
private static void coverImage(BufferedImage baseBufferedImage, BufferedImage coverBufferedImage,
|
||||
int x, int y) {
|
||||
// 创建Graphics2D对象，用在底图对象上绘图
|
||||
Graphics2D g2d = baseBufferedImage.createGraphics();
|
||||
// 绘制
|
||||
g2d.drawImage(coverBufferedImage, x, y, coverBufferedImage.getWidth(), coverBufferedImage.getHeight(), null);
|
||||
// 释放图形上下文使用的系统资源
|
||||
g2d.dispose();
|
||||
}
|
||||
|
||||
private URL getTemplateFile(Map<String, URL> templateImages, String imageName) {
|
||||
URL url = templateImages.get(imageName);
|
||||
if (url == null) {
|
||||
throw new IllegalArgumentException("查找模板异常， 该模板下未找到 ");
|
||||
}
|
||||
return url;
|
||||
}
|
||||
|
||||
private Map<String, URL> getRandomTemplateImages() {
|
||||
if (templateImageFiles.size() == 1) {
|
||||
return templateImageFiles.get(0);
|
||||
}
|
||||
int templateNo = ThreadLocalRandom.current().nextInt(templateImageFiles.size());
|
||||
return templateImageFiles.get(templateNo);
|
||||
}
|
||||
|
||||
@SneakyThrows
|
||||
private static BufferedImage warpFile2BufferedImage(URL resourceImage) {
|
||||
if (resourceImage == null) {
|
||||
throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
|
||||
}
|
||||
return ImageIO.read(resourceImage);
|
||||
}
|
||||
|
||||
private URL getRandomResourceImage() {
|
||||
int targetNo = ThreadLocalRandom.current().nextInt(resourceImageFiles.size());
|
||||
return resourceImageFiles.get(targetNo);
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
SliderCaptchaTemplate sliderCaptchaTemplate = new SliderCaptchaTemplate();
|
||||
// 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();
|
||||
}
|
||||
boolean percentageContrast(Float newPercentage, Float oriPercentage);
|
||||
}
|
||||
|
||||
+22
@@ -0,0 +1,22 @@
|
||||
package cloud.tianai.captcha.template.slider.exception;
|
||||
|
||||
public class SliderCaptchaException extends RuntimeException{
|
||||
public SliderCaptchaException() {
|
||||
}
|
||||
|
||||
public SliderCaptchaException(String message) {
|
||||
super(message);
|
||||
}
|
||||
|
||||
public SliderCaptchaException(String message, Throwable cause) {
|
||||
super(message, cause);
|
||||
}
|
||||
|
||||
public SliderCaptchaException(Throwable cause) {
|
||||
super(cause);
|
||||
}
|
||||
|
||||
public SliderCaptchaException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
|
||||
super(message, cause, enableSuppression, writableStackTrace);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user