diff --git a/pom.xml b/pom.xml
index 57ca940..696cbbf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
4.0.0
cloud.tianai.captcha
tianai-captcha
- 1.2.4
+ 1.2.5
tianai-captcha
滑块验证码
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageConverter.java b/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageConverter.java
new file mode 100644
index 0000000..7e3cbfd
--- /dev/null
+++ b/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageConverter.java
@@ -0,0 +1,11 @@
+package cloud.tianai.captcha.template.slider;
+
+/**
+ * @Author: 天爱有情
+ * @date 2022/2/16 10:04
+ * @Description 验证码图片转换器，将生成的 OriginalSliderData 转换成 SliderCaptchaInfo， 可以对齐进行加密，转换成base64、url等扩展
+ */
+public interface CaptchaImageConverter {
+
+ SliderCaptchaInfo convert(OriginalSliderData originalSliderData);
+}
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageUtils.java b/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageUtils.java
new file mode 100644
index 0000000..747766f
--- /dev/null
+++ b/src/main/java/cloud/tianai/captcha/template/slider/CaptchaImageUtils.java
@@ -0,0 +1,175 @@
+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.InputStream;
+import java.net.URL;
+import java.util.ArrayList;
+
+/**
+ * @Author: 天爱有情
+ * @date 2022/2/16 9:46
+ * @Description image Utils
+ */
+public class CaptchaImageUtils {
+
+ @SneakyThrows
+ public static BufferedImage wrapFile2BufferedImage(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);
+ }
+
+ @SneakyThrows
+ public static BufferedImage wrapFile2BufferedImage(InputStream resource) {
+ if (resource == null) {
+ throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
+ }
+ return ImageIO.read(resource);
+ }
+
+
+ /**
+ * 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
+ */
+ public static void overlayImage(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();
+ }
+
+ /**
+ * 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 x = new ArrayList<>();
+ ArrayList 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;
+ }
+ } else {
+ if (temp != 0) {
+ rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
+ temp = 0;
+ }
+ }
+ }
+ temp = 0;
+ }
+ return rec;
+ }
+
+ /**
+ * 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);
+ }
+
+ /**
+ * 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
+ public 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;
+ }
+
+
+}
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/DefaultCaptchaImageConverter.java b/src/main/java/cloud/tianai/captcha/template/slider/DefaultCaptchaImageConverter.java
new file mode 100644
index 0000000..ced6ec7
--- /dev/null
+++ b/src/main/java/cloud/tianai/captcha/template/slider/DefaultCaptchaImageConverter.java
@@ -0,0 +1,41 @@
+package cloud.tianai.captcha.template.slider;
+
+import lombok.SneakyThrows;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Base64;
+
+/**
+ * @Author: 天爱有情
+ * @date 2022/2/16 10:23
+ * @Description 默认 CaptchaImageConverter
+ */
+public class DefaultCaptchaImageConverter implements CaptchaImageConverter {
+
+ @Override
+ @SneakyThrows
+ public SliderCaptchaInfo convert(OriginalSliderData originalSliderData) {
+ GenerateParam param = originalSliderData.getGenerateParam();
+ BufferedImage backgroundImage = originalSliderData.getBackgroundImage();
+ BufferedImage sliderImage = originalSliderData.getSliderImage();
+ String backgroundFormatName = param.getBackgroundFormatName();
+ String sliderFormatName = param.getSliderFormatName();
+ String backGroundImageBase64 = transform(backgroundImage, backgroundFormatName);
+ String sliderImageBase64 = transform(sliderImage, sliderFormatName);
+ return SliderCaptchaInfo.of(originalSliderData,
+ backGroundImageBase64,
+ sliderImageBase64);
+ }
+
+ public String transform(BufferedImage bufferedImage, String formatName) throws IOException {
+ ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+ ImageIO.write(bufferedImage, formatName, byteArrayOutputStream);
+ //转换成字节码
+ byte[] data = byteArrayOutputStream.toByteArray();
+ String base64 = Base64.getEncoder().encodeToString(data);
+ return "data:image/" + formatName + ";base64,".concat(base64);
+ }
+}
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/DefaultSliderCaptchaTemplate.java b/src/main/java/cloud/tianai/captcha/template/slider/DefaultSliderCaptchaTemplate.java
deleted file mode 100644
index b205d4b..0000000
--- a/src/main/java/cloud/tianai/captcha/template/slider/DefaultSliderCaptchaTemplate.java
+++ /dev/null
@@ -1,386 +0,0 @@
-package cloud.tianai.captcha.template.slider;
-
-import cloud.tianai.captcha.template.slider.provider.ClassPathResourceProvider;
-import lombok.SneakyThrows;
-import lombok.extern.slf4j.Slf4j;
-
-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.io.IOException;
-import java.io.InputStream;
-import java.net.URL;
-import java.util.*;
-import java.util.concurrent.ThreadLocalRandom;
-
-/**
- * @Author: 天爱有情
- * @Date 2020/5/29 8:06
- * @Description 滑块验证码模板
- */
-@Slf4j
-public class DefaultSliderCaptchaTemplate implements SliderCaptchaTemplate {
-
- /**
- * 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";
-
-
- private final SliderCaptchaResourceManager sliderCaptchaResourceManager;
-
-
- public void initDefaultResource() {
- ResourceStore resourceStore = sliderCaptchaResourceManager.getResourceStore();
- // 添加一些系统的资源文件
- resourceStore.addResource(new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/1.jpg")));
-
- // 添加一些系统的 模板文件
- Map template1 = new HashMap<>(4);
- template1.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/active.png")));
- template1.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/fixed.png")));
- template1.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/matrix.png")));
- resourceStore.addTemplate(template1);
-
-
- Map template2 = new HashMap<>(4);
- template2.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/active.png")));
- template2.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/fixed.png")));
- template2.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/matrix.png")));
- resourceStore.addTemplate(template2);
-
- }
-
- public DefaultSliderCaptchaTemplate(SliderCaptchaResourceManager sliderCaptchaResourceManager, boolean initDefaultResource) {
- this.sliderCaptchaResourceManager = sliderCaptchaResourceManager;
- if (initDefaultResource) {
- initDefaultResource();
- }
- }
-
-
- private static ClassLoader getClassLoader() {
- ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
- if (classLoader == null) {
- classLoader = DefaultSliderCaptchaTemplate.getClassLoader();
- }
- if (classLoader == null) {
- classLoader = ClassLoader.getSystemClassLoader();
- }
- return classLoader;
- }
-
- @Override
- public SliderCaptchaInfo getSlideImageInfo() {
- return getSlideImageInfo("jpeg", "png");
- }
-
-
- @SneakyThrows
- @Override
- public SliderCaptchaInfo getSlideImageInfo(String backgroundFormatName, String sliderFormatName) {
- return getSlideImageInfo(GenerateParam.builder()
- .backgroundFormatName(backgroundFormatName)
- .sliderFormatName(sliderFormatName)
- .obfuscate(true)
- .build());
- }
-
- @SneakyThrows
- @Override
- public SliderCaptchaInfo getSlideImageInfo(GenerateParam param) {
-
- String backgroundFormatName = param.getBackgroundFormatName();
- String sliderFormatName = param.getSliderFormatName();
- Boolean obfuscate = param.getObfuscate();
-
- Map templateImages = sliderCaptchaResourceManager.randomGetTemplate();
- if (templateImages == null || templateImages.isEmpty()) {
- return null;
- }
- Collection inputStreams = new LinkedList<>();
- try {
- Resource resourceImage = sliderCaptchaResourceManager.randomGetResource();
- InputStream resourceInputStream = sliderCaptchaResourceManager.getResourceInputStream(resourceImage);
- inputStreams.add(resourceInputStream);
- BufferedImage cutBackground = wrapFile2BufferedImage(resourceInputStream);
- // 拷贝一份图片
- BufferedImage targetBackground = deepCopyBufferedImage(cutBackground);
-
- InputStream fixedTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME);
- inputStreams.add(fixedTemplateInput);
- BufferedImage fixedTemplate = wrapFile2BufferedImage(fixedTemplateInput);
-
- InputStream activeTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME);
- inputStreams.add(activeTemplateInput);
- BufferedImage activeTemplate = wrapFile2BufferedImage(activeTemplateInput);
-
-
- InputStream matrixTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME);
- inputStreams.add(matrixTemplateInput);
- BufferedImage matrixTemplate = wrapFile2BufferedImage(matrixTemplateInput);
-
-// 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);
- if (obfuscate) {
- // 加入混淆滑块
- int obfuscateX = randomObfuscateX(randomX, fixedTemplate.getWidth(), targetBackground.getWidth());
- coverImage(targetBackground, fixedTemplate, obfuscateX, 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, backgroundFormatName);
- String sliderImageBase64 = transformBase64(matrixTemplate, sliderFormatName);
-
- return SliderCaptchaInfo.of(randomX, xPercent, randomY, backGroundImageBase64, sliderImageBase64);
- } finally {
- // 使用完后关闭流
- for (InputStream inputStream : inputStreams) {
- try {
- inputStream.close();
- } catch (IOException e) {
- // ignore
- }
- }
- }
- }
-
- private int randomObfuscateX(int sliderX, int slWidth, int bgWidth) {
- if (bgWidth / 2 > (sliderX + (slWidth / 2))) {
- // 右边混淆
- return ThreadLocalRandom.current().nextInt( sliderX + slWidth, bgWidth - slWidth);
- }
- // 左边混淆
- return ThreadLocalRandom.current().nextInt(slWidth, sliderX - slWidth);
- }
-
- /**
- * 百分比对比
- *
- * @param newPercentage 用户百分比
- * @param oriPercentage 原百分比
- * @return true 成功 false 失败
- */
- @Override
- 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;
- }
-
- @Override
- public SliderCaptchaResourceManager getSlideImageResourceManager() {
- return sliderCaptchaResourceManager;
- }
-
-
- private String transformBase64(BufferedImage bufferedImage, String formatName) throws IOException {
- ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
- ImageIO.write(bufferedImage, formatName, byteArrayOutputStream);
- //转换成字节码
- byte[] data = byteArrayOutputStream.toByteArray();
- 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 x = new ArrayList<>();
- ArrayList 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;
- }
- } 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 InputStream getTemplateFile(Map templateImages, String imageName) {
- Resource resource = templateImages.get(imageName);
- if (resource == null) {
- throw new IllegalArgumentException("查找模板异常， 该模板下未找到 ".concat(imageName));
- }
- return sliderCaptchaResourceManager.getResourceInputStream(resource);
- }
-
-
- @SneakyThrows
- private static BufferedImage wrapFile2BufferedImage(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);
- }
-
- @SneakyThrows
- private static BufferedImage wrapFile2BufferedImage(InputStream resource) {
- if (resource == null) {
- throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
- }
- return ImageIO.read(resource);
- }
-
-
- public static void main(String[] args) throws InterruptedException {
- SliderCaptchaResourceManager sliderCaptchaResourceManager = new DefaultSliderCaptchaResourceManager();
- DefaultSliderCaptchaTemplate sliderCaptchaTemplate = new DefaultSliderCaptchaTemplate(sliderCaptchaResourceManager, true);
- // 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();
- System.out.println(backgroundImage);
- System.out.println(slideImageInfo);
- }
-}
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/OriginalSliderData.java b/src/main/java/cloud/tianai/captcha/template/slider/OriginalSliderData.java
new file mode 100644
index 0000000..fa0b76d
--- /dev/null
+++ b/src/main/java/cloud/tianai/captcha/template/slider/OriginalSliderData.java
@@ -0,0 +1,40 @@
+package cloud.tianai.captcha.template.slider;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.awt.image.BufferedImage;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OriginalSliderData {
+ /**
+ * x轴
+ */
+ private Integer x;
+ /**
+ * y轴
+ */
+ private Integer y;
+
+ /** 滑块要凹槽的百分比. */
+ private float xPercent;
+ /**
+ * 背景图
+ */
+ private BufferedImage backgroundImage;
+ /**
+ * 移动图
+ */
+ private BufferedImage sliderImage;
+ /**
+ * 生成参数
+ */
+ private GenerateParam generateParam;
+
+ public static OriginalSliderData of(Integer x, Integer y, float xPercent, BufferedImage backgroundImage, BufferedImage sliderImage, GenerateParam generateParam) {
+ return new OriginalSliderData(x, y, xPercent, backgroundImage, sliderImage, generateParam);
+ }
+}
\ No newline at end of file
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/SliderCaptchaInfo.java b/src/main/java/cloud/tianai/captcha/template/slider/SliderCaptchaInfo.java
index ddfcd78..669839d 100644
--- a/src/main/java/cloud/tianai/captcha/template/slider/SliderCaptchaInfo.java
+++ b/src/main/java/cloud/tianai/captcha/template/slider/SliderCaptchaInfo.java
@@ -32,8 +32,23 @@ public class SliderCaptchaInfo {
* 移动图
*/
private String sliderImage;
+ /**
+ * 扩展字段
+ */
+ public Object expand;
+ public SliderCaptchaInfo(Integer x, Float xPercent, Integer y, String backgroundImage, String sliderImage) {
+ this.x = x;
+ this.xPercent = xPercent;
+ this.y = y;
+ this.backgroundImage = backgroundImage;
+ this.sliderImage = sliderImage;
+ }
public static SliderCaptchaInfo of(Integer x, Float xPercent, Integer y, String backgroundImage, String sliderImage) {
return new SliderCaptchaInfo(x, xPercent, y, backgroundImage, sliderImage);
}
+
+ public static SliderCaptchaInfo of(OriginalSliderData originalSliderData, String backgroundImage, String sliderImage) {
+ return new SliderCaptchaInfo(originalSliderData.getX(), originalSliderData.getXPercent(), originalSliderData.getY(), backgroundImage, sliderImage);
+ }
}
diff --git a/src/main/java/cloud/tianai/captcha/template/slider/StandardSliderCaptchaTemplate.java b/src/main/java/cloud/tianai/captcha/template/slider/StandardSliderCaptchaTemplate.java
new file mode 100644
index 0000000..379220c
--- /dev/null
+++ b/src/main/java/cloud/tianai/captcha/template/slider/StandardSliderCaptchaTemplate.java
@@ -0,0 +1,205 @@
+package cloud.tianai.captcha.template.slider;
+
+import cloud.tianai.captcha.template.slider.provider.ClassPathResourceProvider;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.concurrent.ThreadLocalRandom;
+
+import static cloud.tianai.captcha.template.slider.CaptchaImageUtils.*;
+
+/**
+ * @Author: 天爱有情
+ * @Date 2020/5/29 8:06
+ * @Description 滑块验证码模板
+ */
+@Slf4j
+public class StandardSliderCaptchaTemplate implements SliderCaptchaTemplate {
+
+ /**
+ * 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 String DEFAULT_BG_IMAGE_TYPE = "jpeg";
+ public static String DEFAULT_SLIDER_IMAGE_TYPE = "png";
+ public static float DEFAULT_TOLERANT = 0.02f;
+
+ protected final SliderCaptchaResourceManager sliderCaptchaResourceManager;
+ protected final CaptchaImageConverter captchaImageConverter;
+
+ @Getter
+ @Setter
+ /** 容错值. */
+ public float tolerant = DEFAULT_TOLERANT;
+ @Getter
+ @Setter
+ /** 默认背景图片类型. */
+ public String defaultBgImageType = DEFAULT_BG_IMAGE_TYPE;
+ @Getter
+ @Setter
+ /** 默认滑块图片类型. */
+ public String defaultSliderImageType = DEFAULT_SLIDER_IMAGE_TYPE;
+
+ public StandardSliderCaptchaTemplate(SliderCaptchaResourceManager sliderCaptchaResourceManager,
+ CaptchaImageConverter captchaImageConverter,
+ boolean initDefaultResource) {
+ this.sliderCaptchaResourceManager = sliderCaptchaResourceManager;
+ this.captchaImageConverter = captchaImageConverter;
+ if (initDefaultResource) {
+ initDefaultResource();
+ }
+ }
+
+ @Override
+ public SliderCaptchaInfo getSlideImageInfo() {
+ return getSlideImageInfo(defaultBgImageType, defaultSliderImageType);
+ }
+
+ @SneakyThrows
+ @Override
+ public SliderCaptchaInfo getSlideImageInfo(String backgroundFormatName, String sliderFormatName) {
+ return getSlideImageInfo(GenerateParam.builder()
+ .backgroundFormatName(backgroundFormatName)
+ .sliderFormatName(sliderFormatName)
+ .obfuscate(false)
+ .build());
+ }
+
+ @SneakyThrows
+ @Override
+ public SliderCaptchaInfo getSlideImageInfo(GenerateParam param) {
+ Boolean obfuscate = param.getObfuscate();
+ Map templateImages = sliderCaptchaResourceManager.randomGetTemplate();
+ if (templateImages == null || templateImages.isEmpty()) {
+ return null;
+ }
+ Collection inputStreams = new LinkedList<>();
+ try {
+ Resource resourceImage = sliderCaptchaResourceManager.randomGetResource();
+ InputStream resourceInputStream = sliderCaptchaResourceManager.getResourceInputStream(resourceImage);
+ inputStreams.add(resourceInputStream);
+ BufferedImage cutBackground = wrapFile2BufferedImage(resourceInputStream);
+ // 拷贝一份图片
+ BufferedImage targetBackground = deepCopyBufferedImage(cutBackground);
+
+ InputStream fixedTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME);
+ inputStreams.add(fixedTemplateInput);
+ BufferedImage fixedTemplate = wrapFile2BufferedImage(fixedTemplateInput);
+
+ InputStream activeTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME);
+ inputStreams.add(activeTemplateInput);
+ BufferedImage activeTemplate = wrapFile2BufferedImage(activeTemplateInput);
+
+
+ InputStream matrixTemplateInput = getTemplateFile(templateImages, SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME);
+ inputStreams.add(matrixTemplateInput);
+ BufferedImage matrixTemplate = wrapFile2BufferedImage(matrixTemplateInput);
+
+// 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());
+
+ overlayImage(targetBackground, fixedTemplate, randomX, randomY);
+ if (obfuscate) {
+ // 加入混淆滑块
+ int obfuscateX = randomObfuscateX(randomX, fixedTemplate.getWidth(), targetBackground.getWidth());
+ overlayImage(targetBackground, fixedTemplate, obfuscateX, randomY);
+ }
+ BufferedImage cutImage = cutImage(cutBackground, fixedTemplate, randomX, randomY);
+ overlayImage(cutImage, activeTemplate, 0, 0);
+ overlayImage(matrixTemplate, cutImage, 0, randomY);
+ // 计算滑块百分比
+ float xPercent = (float) randomX / targetBackground.getWidth();
+ return captchaImageConverter.convert(OriginalSliderData.of(randomX, randomY, xPercent, targetBackground, matrixTemplate, param));
+ } finally {
+ // 使用完后关闭流
+ for (InputStream inputStream : inputStreams) {
+ try {
+ inputStream.close();
+ } catch (IOException e) {
+ // ignore
+ }
+ }
+ }
+ }
+
+ /**
+ * 百分比对比
+ *
+ * @param newPercentage 用户百分比
+ * @param oriPercentage 原百分比
+ * @return true 成功 false 失败
+ */
+ @Override
+ 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 maxTolerant = oriPercentage + tolerant;
+ float minTolerant = oriPercentage - tolerant;
+ return newPercentage >= minTolerant && newPercentage <= maxTolerant;
+ }
+
+ @Override
+ public SliderCaptchaResourceManager getSlideImageResourceManager() {
+ return sliderCaptchaResourceManager;
+ }
+
+ protected int randomObfuscateX(int sliderX, int slWidth, int bgWidth) {
+ if (bgWidth / 2 > (sliderX + (slWidth / 2))) {
+ // 右边混淆
+ return ThreadLocalRandom.current().nextInt(sliderX + slWidth, bgWidth - slWidth);
+ }
+ // 左边混淆
+ return ThreadLocalRandom.current().nextInt(slWidth, sliderX - slWidth);
+ }
+
+ protected InputStream getTemplateFile(Map templateImages, String imageName) {
+ Resource resource = templateImages.get(imageName);
+ if (resource == null) {
+ throw new IllegalArgumentException("查找模板异常， 该模板下未找到 ".concat(imageName));
+ }
+ return sliderCaptchaResourceManager.getResourceInputStream(resource);
+ }
+
+ /**
+ * 初始化默认资源
+ */
+ public void initDefaultResource() {
+ ResourceStore resourceStore = sliderCaptchaResourceManager.getResourceStore();
+ // 添加一些系统的资源文件
+ resourceStore.addResource(new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/1.jpg")));
+
+ // 添加一些系统的 模板文件
+ Map template1 = new HashMap<>(4);
+ template1.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/active.png")));
+ template1.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/fixed.png")));
+ template1.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/matrix.png")));
+ resourceStore.addTemplate(template1);
+
+
+ Map template2 = new HashMap<>(4);
+ template2.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/active.png")));
+ template2.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/fixed.png")));
+ template2.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/matrix.png")));
+ resourceStore.addTemplate(template2);
+ }
+}