From 2af534eea471f4adb104906c7a814bcc66d4d68d Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期一, 13 九月 2021 13:03:58 +0800
Subject: [PATCH] Merge branch 'master' of https://gitee.com/y_project/RuoYi-Vue into dev

---
 ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java |  118 +++++++++++++++++++++++++++++++++++------------------------
 1 files changed, 70 insertions(+), 48 deletions(-)

diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
index c096344..b6f8a50 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/common/CaptchaController.java
@@ -1,62 +1,84 @@
 package com.ruoyi.web.controller.common;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-import javax.servlet.http.HttpServletResponse;
+import cn.hutool.captcha.AbstractCaptcha;
+import cn.hutool.captcha.generator.CodeGenerator;
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.util.IdUtil;
+import com.ruoyi.common.constant.Constants;
+import com.ruoyi.common.core.domain.AjaxResult;
+import com.ruoyi.common.enums.CaptchaType;
+import com.ruoyi.common.utils.RedisUtils;
+import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.common.utils.reflect.ReflectUtils;
+import com.ruoyi.common.utils.spring.SpringUtils;
+import com.ruoyi.framework.config.properties.CaptchaProperties;
+import com.ruoyi.system.service.ISysConfigService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
-import com.ruoyi.common.constant.Constants;
-import com.ruoyi.common.core.domain.AjaxResult;
-import com.ruoyi.common.core.redis.RedisCache;
-import com.ruoyi.common.utils.VerifyCodeUtils;
-import com.ruoyi.common.utils.sign.Base64;
-import com.ruoyi.common.utils.uuid.IdUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
 
 /**
  * 楠岃瘉鐮佹搷浣滃鐞�
- * 
+ *
  * @author ruoyi
  */
 @RestController
-public class CaptchaController
-{
-    @Autowired
-    private RedisCache redisCache;
+public class CaptchaController {
 
-    /**
-     * 鐢熸垚楠岃瘉鐮�
-     */
-    @GetMapping("/captchaImage")
-    public AjaxResult getCode(HttpServletResponse response) throws IOException
-    {
-        // 鐢熸垚闅忔満瀛椾覆
-        String verifyCode = VerifyCodeUtils.generateVerifyCode(4);
-        // 鍞竴鏍囪瘑
-        String uuid = IdUtils.simpleUUID();
-        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
+	@Autowired
+	private CaptchaProperties captchaProperties;
 
-        redisCache.setCacheObject(verifyKey, verifyCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
-        // 鐢熸垚鍥剧墖
-        int w = 111, h = 36;
-        ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        VerifyCodeUtils.outputImage(w, h, stream, verifyCode);
-        try
-        {
-            AjaxResult ajax = AjaxResult.success();
-            ajax.put("uuid", uuid);
-            ajax.put("img", Base64.encode(stream.toByteArray()));
-            return ajax;
-        }
-        catch (Exception e)
-        {
-            e.printStackTrace();
-            return AjaxResult.error(e.getMessage());
-        }
-        finally
-        {
-            stream.close();
-        }
-    }
+	@Autowired
+	private ISysConfigService configService;
+
+	/**
+	 * 鐢熸垚楠岃瘉鐮�
+	 */
+	@GetMapping("/captchaImage")
+	public AjaxResult getCode() {
+		Map<String, Object> ajax = new HashMap<>();
+		boolean captchaOnOff = configService.selectCaptchaOnOff();
+		ajax.put("captchaOnOff", captchaOnOff);
+		if (!captchaOnOff) {
+			return AjaxResult.success(ajax);
+		}
+		// 淇濆瓨楠岃瘉鐮佷俊鎭�
+		String uuid = IdUtil.simpleUUID();
+		String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
+		// 鐢熸垚楠岃瘉鐮�
+		CaptchaType captchaType = captchaProperties.getType();
+		boolean isMath = CaptchaType.MATH == captchaType;
+		Integer length = isMath ? captchaProperties.getNumberLength() : captchaProperties.getCharLength();
+		CodeGenerator codeGenerator = ReflectUtils.newInstance(captchaType.getClazz(), length);
+		AbstractCaptcha captcha = SpringUtils.getBean(captchaProperties.getCategory().getClazz());
+		captcha.setGenerator(codeGenerator);
+		captcha.createCode();
+		String code = isMath ? getCodeResult(captcha.getCode()) : captcha.getCode();
+		RedisUtils.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
+		ajax.put("uuid", uuid);
+		ajax.put("img", captcha.getImageBase64());
+		return AjaxResult.success(ajax);
+	}
+
+	private String getCodeResult(String capStr) {
+		int numberLength = captchaProperties.getNumberLength();
+		int a = Convert.toInt(StringUtils.substring(capStr, 0, numberLength).trim());
+		char operator = capStr.charAt(numberLength);
+		int b = Convert.toInt(StringUtils.substring(capStr, numberLength + 1, numberLength + 1 + numberLength).trim());
+		switch (operator) {
+			case '*':
+				return Convert.toStr(a * b);
+			case '+':
+				return Convert.toStr(a + b);
+			case '-':
+				return Convert.toStr(a - b);
+			default:
+				return StringUtils.EMPTY;
+		}
+	}
+
 }

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