mirror of
https://github.com/dromara/tianai-captcha.git
synced 2026-05-07 06:04:34 +08:00
+ 增加 CaptchaImageConverter转换器，负责将生成的图片转换成自己想要的格式，比如加密转码等..
This commit is contained in:
天爱有情
@@ -4,7 +4,7 @@
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<modelVersion>4.0.0</modelVersion>
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<modelVersion>4.0.0</modelVersion>
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<groupId>cloud.tianai.captcha</groupId>
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<groupId>cloud.tianai.captcha</groupId>
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<artifactId>tianai-captcha</artifactId>
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<artifactId>tianai-captcha</artifactId>
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<version>1.2.4</version>
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<version>1.2.5</version>
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<name>tianai-captcha</name>
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<name>tianai-captcha</name>
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<description>滑块验证码</description>
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<description>滑块验证码</description>
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@@ -0,0 +1,11 @@
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package cloud.tianai.captcha.template.slider;
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/**
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* @Author: 天爱有情
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* @date 2022/2/16 10:04
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* @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
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*/
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public interface CaptchaImageConverter {
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SliderCaptchaInfo convert(OriginalSliderData originalSliderData);
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}
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@@ -0,0 +1,175 @@
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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.InputStream;
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import java.net.URL;
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import java.util.ArrayList;
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/**
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* @Author: 天爱有情
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* @date 2022/2/16 9:46
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* @Description image Utils
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*/
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public class CaptchaImageUtils {
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@SneakyThrows
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public static BufferedImage wrapFile2BufferedImage(URL resourceImage) {
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if (resourceImage == null) {
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throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
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}
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return ImageIO.read(resourceImage);
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}
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@SneakyThrows
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public static BufferedImage wrapFile2BufferedImage(InputStream resource) {
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if (resource == null) {
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throw new IllegalArgumentException("包装文件到 BufferedImage 失败， file不能为空");
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}
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return ImageIO.read(resource);
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}
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/**
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* 图片覆盖（覆盖图压缩到width*height大小，覆盖到底图上）
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*
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* @param baseBufferedImage 底图
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* @param coverBufferedImage 覆盖图
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* @param x 起始x轴
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* @param y 起始y轴
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*/
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public static void overlayImage(BufferedImage baseBufferedImage, BufferedImage coverBufferedImage,
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int x, int y) {
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// 创建Graphics2D对象，用在底图对象上绘图
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Graphics2D g2d = baseBufferedImage.createGraphics();
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// 绘制
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g2d.drawImage(coverBufferedImage, x, y, coverBufferedImage.getWidth(), coverBufferedImage.getHeight(), null);
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// 释放图形上下文使用的系统资源
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g2d.dispose();
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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 {
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ArrayList<Integer> x = new ArrayList<>();
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ArrayList<Integer> y = new ArrayList<>();
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int width = img.getWidth(null);
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int height = img.getHeight(null);
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// 首先获取图像所有的像素信息
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PixelGrabber pgr = new PixelGrabber(img, 0, 0, -1, -1, true);
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pgr.grabPixels();
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int[] pixels = (int[]) pgr.getPixels();
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// 循环像素
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for (int i = 0; i < pixels.length; i++) {
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// 筛选，将不透明的像素的坐标加入到坐标ArrayList x和y中
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int alpha = (pixels[i] >> 24) & 0xff;
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if (alpha != 0) {
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x.add(i % width > 0 ? i % width - 1 : 0);
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y.add(i % width == 0 ? (i == 0 ? 0 : i / width - 1) : i / width);
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}
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}
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// 建立图像矩阵并初始化(0为透明,1为不透明)
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int[][] matrix = new int[height][width];
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for (int i = 0; i < height; i++) {
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for (int j = 0; j < width; j++) {
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matrix[i][j] = 0;
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}
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}
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// 导入坐标ArrayList中的不透明坐标信息
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for (int c = 0; c < x.size(); c++) {
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matrix[y.get(c)][x.get(c)] = 1;
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}
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/*
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* 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，
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* 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
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*/
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Area rec = new Area();
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int temp = 0;
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//生成Shape时是1取透明区域还是取非透明区域的flag
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int flag = transparent ? 0 : 1;
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for (int i = 0; i < height; i++) {
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for (int j = 0; j < width; j++) {
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if (matrix[i][j] == flag) {
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if (temp == 0) {
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temp = j;
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}
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} else {
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if (temp != 0) {
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rec.add(new Area(new Rectangle(temp, i, j - temp, 1)));
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temp = 0;
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}
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}
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}
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temp = 0;
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}
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return rec;
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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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* 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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public 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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@@ -0,0 +1,41 @@
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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.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.Base64;
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/**
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* @Author: 天爱有情
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* @date 2022/2/16 10:23
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* @Description 默认 CaptchaImageConverter
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*/
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public class DefaultCaptchaImageConverter implements CaptchaImageConverter {
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@Override
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@SneakyThrows
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public SliderCaptchaInfo convert(OriginalSliderData originalSliderData) {
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GenerateParam param = originalSliderData.getGenerateParam();
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BufferedImage backgroundImage = originalSliderData.getBackgroundImage();
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BufferedImage sliderImage = originalSliderData.getSliderImage();
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String backgroundFormatName = param.getBackgroundFormatName();
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String sliderFormatName = param.getSliderFormatName();
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String backGroundImageBase64 = transform(backgroundImage, backgroundFormatName);
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String sliderImageBase64 = transform(sliderImage, sliderFormatName);
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return SliderCaptchaInfo.of(originalSliderData,
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backGroundImageBase64,
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sliderImageBase64);
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}
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public String transform(BufferedImage bufferedImage, String formatName) throws IOException {
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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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byte[] data = byteArrayOutputStream.toByteArray();
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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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@@ -1,386 +0,0 @@
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package cloud.tianai.captcha.template.slider;
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import cloud.tianai.captcha.template.slider.provider.ClassPathResourceProvider;
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import lombok.SneakyThrows;
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import lombok.extern.slf4j.Slf4j;
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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.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.*;
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import java.util.concurrent.ThreadLocalRandom;
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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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@Slf4j
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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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private final SliderCaptchaResourceManager sliderCaptchaResourceManager;
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public void initDefaultResource() {
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ResourceStore resourceStore = sliderCaptchaResourceManager.getResourceStore();
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// 添加一些系统的资源文件
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resourceStore.addResource(new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_RESOURCE_PATH.concat("/1.jpg")));
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// 添加一些系统的 模板文件
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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, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/active.png")));
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template1.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/fixed.png")));
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template1.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/1/matrix.png")));
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resourceStore.addTemplate(template1);
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Map<String, Resource> template2 = new HashMap<>(4);
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template2.put(SliderCaptchaConstant.TEMPLATE_ACTIVE_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/active.png")));
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template2.put(SliderCaptchaConstant.TEMPLATE_FIXED_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/fixed.png")));
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template2.put(SliderCaptchaConstant.TEMPLATE_MATRIX_IMAGE_NAME, new Resource(ClassPathResourceProvider.NAME, DEFAULT_SLIDER_IMAGE_TEMPLATE_PATH.concat("/2/matrix.png")));
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resourceStore.addTemplate(template2);
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}
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public DefaultSliderCaptchaTemplate(SliderCaptchaResourceManager sliderCaptchaResourceManager, boolean initDefaultResource) {
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this.sliderCaptchaResourceManager = sliderCaptchaResourceManager;
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if (initDefaultResource) {
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initDefaultResource();
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}
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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("jpeg", "png");
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}
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@SneakyThrows
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@Override
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public SliderCaptchaInfo getSlideImageInfo(String backgroundFormatName, String sliderFormatName) {
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return getSlideImageInfo(GenerateParam.builder()
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.backgroundFormatName(backgroundFormatName)
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.sliderFormatName(sliderFormatName)
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.obfuscate(true)
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.build());
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}
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@SneakyThrows
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@Override
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public SliderCaptchaInfo getSlideImageInfo(GenerateParam param) {
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String backgroundFormatName = param.getBackgroundFormatName();
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String sliderFormatName = param.getSliderFormatName();
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Boolean obfuscate = param.getObfuscate();
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Map<String, Resource> templateImages = sliderCaptchaResourceManager.randomGetTemplate();
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if (templateImages == null || templateImages.isEmpty()) {
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return null;
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}
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Collection<InputStream> inputStreams = new LinkedList<>();
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try {
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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<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;
|
|
||||||
}
|
|
||||||
} 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<String, Resource> 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);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@@ -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);
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -32,8 +32,23 @@ public class SliderCaptchaInfo {
|
|||||||
* 移动图
|
* 移动图
|
||||||
*/
|
*/
|
||||||
private String sliderImage;
|
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) {
|
public static SliderCaptchaInfo of(Integer x, Float xPercent, Integer y, String backgroundImage, String sliderImage) {
|
||||||
return new SliderCaptchaInfo(x, xPercent, y, backgroundImage, 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);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
+205
@@ -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.*;
|
||||||
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||||||
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/**
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||||||
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* @Author: 天爱有情
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||||||
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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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*/
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||||||
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@Slf4j
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public class StandardSliderCaptchaTemplate implements SliderCaptchaTemplate {
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||||||
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/**
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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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*/
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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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/**
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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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*/
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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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||||||
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||||||
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public static String DEFAULT_BG_IMAGE_TYPE = "jpeg";
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||||||
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public static String DEFAULT_SLIDER_IMAGE_TYPE = "png";
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||||||
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public static float DEFAULT_TOLERANT = 0.02f;
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||||||
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||||||
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protected final SliderCaptchaResourceManager sliderCaptchaResourceManager;
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||||||
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protected final CaptchaImageConverter captchaImageConverter;
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||||||
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@Getter
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||||||
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@Setter
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||||||
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/** 容错值. */
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||||||
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public float tolerant = DEFAULT_TOLERANT;
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||||||
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@Getter
|
||||||
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@Setter
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||||||
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/** 默认背景图片类型. */
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||||||
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public String defaultBgImageType = DEFAULT_BG_IMAGE_TYPE;
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||||||
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@Getter
|
||||||
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@Setter
|
||||||
|
/** 默认滑块图片类型. */
|
||||||
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public String defaultSliderImageType = DEFAULT_SLIDER_IMAGE_TYPE;
|
||||||
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|
||||||
|
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<String, Resource> templateImages = sliderCaptchaResourceManager.randomGetTemplate();
|
||||||
|
if (templateImages == null || templateImages.isEmpty()) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
Collection<InputStream> 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<String, Resource> 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<String, Resource> 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<String, Resource> 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);
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user