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!1393 feat.新增输入字母数字类型的验证码spi

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Merge pull request !1393 from DanielTsui/master-jdk17-pictureWordCaptcha
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芋道源码
2025-08-04 01:03:28 +00:00
committed by Gitee
parent fd48795b8a 413eb23893
commit 3102fc1f9c
2 changed files with 228 additions and 0 deletions
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227
yudao-module-system/src/main/java/cn/iocoder/yudao/module/system/framework/captcha/core/PictureWordCaptchaServiceImpl.java Normal file
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package cn.iocoder.yudao.module.system.framework.captcha.core;
import com.anji.captcha.model.common.CaptchaTypeEnum;
import com.anji.captcha.model.common.RepCodeEnum;
import com.anji.captcha.model.common.ResponseModel;
import com.anji.captcha.model.vo.CaptchaVO;
import com.anji.captcha.service.impl.AbstractCaptchaService;
import com.anji.captcha.service.impl.CaptchaServiceFactory;
import com.anji.captcha.util.AESUtil;
import com.anji.captcha.util.ImageUtils;
import com.anji.captcha.util.RandomUtils;
import org.apache.commons.lang3.StringUtils;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.util.Properties;
import java.util.Random;
/**
* 图片文字验证码
*
* @author Tsui
* @since 2025/7/23 20:44
*/
public class PictureWordCaptchaServiceImpl extends AbstractCaptchaService {
private static final int WIDTH = 120;
private static final int HEIGHT = 40;
private static final int LINES = 10;
private static final Random RANDOM = new Random();
private static final String CHARACTERS = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";
@Override
public void init(Properties config) {
super.init(config);
}
@Override
public void destroy(Properties config) {
logger.info("start-clear-history-data-{}", captchaType());
}
@Override
public String captchaType() {
return "pictureWord";
// return CaptchaTypeEnum.PICTURE_WORD.getCodeValue();
}
@Override
public ResponseModel get(CaptchaVO captchaVO) {
String text = generateRandomText(4);
CaptchaVO imageData = getImageData(text);
// pointJson不传到前端,只做后端校验,测试时放开
// imageData.setPointJson(text);
return ResponseModel.successData(imageData);
}
@Override
public ResponseModel check(CaptchaVO captchaVO) {
ResponseModel r = super.check(captchaVO);
if (!validatedReq(r)) {
return r;
}
// 取出验证码
String codeKey = String.format(REDIS_CAPTCHA_KEY, captchaVO.getToken());
if (!CaptchaServiceFactory.getCache(cacheType).exists(codeKey)) {
return ResponseModel.errorMsg(RepCodeEnum.API_CAPTCHA_INVALID);
}
// 正确的验证码
String codeValue = CaptchaServiceFactory.getCache(cacheType).get(codeKey);
String code = getCodeByCodeValue(codeValue);
String secretKey = getSecretKeyByCodeValue(codeValue);
//验证码只用一次，即刻失效
CaptchaServiceFactory.getCache(cacheType).delete(codeKey);
// 用户输入的验证码(CaptchaVO中没有预留字段,暂时用pointJson,无需加解密)
String userCode = captchaVO.getPointJson();
if (!StringUtils.equalsIgnoreCase(code, userCode)) {
afterValidateFail(captchaVO);
return ResponseModel.errorMsg(RepCodeEnum.API_CAPTCHA_COORDINATE_ERROR);
}
//校验成功，将信息存入缓存
String value;
try {
value = AESUtil.aesEncrypt(captchaVO.getToken().concat("---").concat(userCode), secretKey);
} catch (Exception e) {
logger.error("AES加密失败", e);
afterValidateFail(captchaVO);
return ResponseModel.errorMsg(e.getMessage());
}
String secondKey = String.format(REDIS_SECOND_CAPTCHA_KEY, value);
CaptchaServiceFactory.getCache(cacheType).set(secondKey, captchaVO.getToken(), EXPIRESIN_THREE);
captchaVO.setResult(true);
captchaVO.resetClientFlag();
return ResponseModel.successData(captchaVO);
}
@Override
public ResponseModel verification(CaptchaVO captchaVO) {
ResponseModel r = super.verification(captchaVO);
if (!validatedReq(r)) {
return r;
}
try {
String codeKey = String.format(REDIS_SECOND_CAPTCHA_KEY, captchaVO.getCaptchaVerification());
if (!CaptchaServiceFactory.getCache(cacheType).exists(codeKey)) {
return ResponseModel.errorMsg(RepCodeEnum.API_CAPTCHA_INVALID);
}
//二次校验取值后，即刻失效
CaptchaServiceFactory.getCache(cacheType).delete(codeKey);
} catch (Exception e) {
logger.error("验证码解析失败", e);
return ResponseModel.errorMsg(e.getMessage());
}
return ResponseModel.success();
}
private CaptchaVO getImageData(String text) {
CaptchaVO dataVO = new CaptchaVO();
BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
Graphics2D g = image.createGraphics();
// 设置背景色
g.setColor(getRandomColor(200, 250));
g.fillRect(0, 0, WIDTH, HEIGHT);
// 绘制干扰线
for (int i = 0; i < LINES; i++) {
g.setColor(getRandomColor(100, 200));
int x1 = RANDOM.nextInt(WIDTH);
int y1 = RANDOM.nextInt(HEIGHT);
int x2 = RANDOM.nextInt(WIDTH);
int y2 = RANDOM.nextInt(HEIGHT);
g.drawLine(x1, y1, x2, y2);
}
// 设置字体
g.setFont(new Font("Arial", Font.BOLD, 24));
// 绘制验证码文本
for (int i = 0; i < text.length(); i++) {
g.setColor(getRandomColor(20, 130));
// 文字旋转
AffineTransform affineTransform = new AffineTransform();
int x = 20 + i * 20;
int y = 24 + RANDOM.nextInt(8);
// 旋转范围 -45 ~ 45
affineTransform.setToRotation(Math.toRadians(RandomUtils.getRandomInt(-45, 45)), x, y);
g.setTransform(affineTransform);
g.drawString(text.charAt(i) + "", x, y);
}
// 添加噪点
for (int i = 0; i < 100; i++) {
int x = RANDOM.nextInt(WIDTH);
int y = RANDOM.nextInt(HEIGHT);
image.setRGB(x, y, getRandomColor(0, 255).getRGB());
}
g.dispose();
String secretKey = null;
if (captchaAesStatus) {
secretKey = AESUtil.getKey();
}
dataVO.setSecretKey(secretKey);
dataVO.setOriginalImageBase64(ImageUtils.getImageToBase64Str(image).replaceAll("\r|\n", ""));
dataVO.setToken(RandomUtils.getUUID());
// dataVO.setSecretKey(secretKey);
//将坐标信息存入redis中
String codeKey = String.format(REDIS_CAPTCHA_KEY, dataVO.getToken());
CaptchaServiceFactory.getCache(cacheType).set(codeKey, getCodeValue(text, secretKey), EXPIRESIN_SECONDS);
return dataVO;
}
private String getCodeValue(String text, String secretKey) {
return text + "," + secretKey;
}
private String getCodeByCodeValue(String codeValue) {
return codeValue.split(",")[0];
}
private String getSecretKeyByCodeValue(String codeValue) {
return codeValue.split(",")[1];
}
private Color getRandomColor(int min, int max) {
if (min > max) {
int temp = min;
min = max;
max = temp;
}
int r = min + RANDOM.nextInt(max - min);
int g = min + RANDOM.nextInt(max - min);
int b = min + RANDOM.nextInt(max - min);
return new Color(r, g, b);
}
/**
* 生成指定长度的随机字符串
*
* @param length 长度
* @return {@link String}
* @author Rex
* @since 2025/6/26 15:20
*/
public static String generateRandomText(int length) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < length; i++) {
int index = RANDOM.nextInt(CHARACTERS.length());
sb.append(CHARACTERS.charAt(index));
}
return sb.toString();
}
}

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yudao-module-system/src/main/resources/META-INF/services/com.anji.captcha.service.CaptchaService Normal file
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cn.iocoder.yudao.module.system.framework.captcha.core.PictureWordCaptchaServiceImpl