package com.ruoyi.web.controller.common;
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import cn.hutool.captcha.AbstractCaptcha;
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import cn.hutool.captcha.generator.CodeGenerator;
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import cn.hutool.core.convert.Convert;
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import cn.hutool.core.util.IdUtil;
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import com.ruoyi.common.constant.Constants;
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import com.ruoyi.common.core.domain.AjaxResult;
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import com.ruoyi.common.enums.CaptchaType;
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import com.ruoyi.common.utils.RedisUtils;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.common.utils.reflect.ReflectUtils;
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import com.ruoyi.common.utils.spring.SpringUtils;
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import com.ruoyi.framework.config.properties.CaptchaProperties;
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import com.ruoyi.system.service.ISysConfigService;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.RequiredArgsConstructor;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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/**
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* 验证码操作处理
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*
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* @author Lion Li
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*/
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@Api(value = "验证码操作处理", tags = {"验证码管理"})
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@RequiredArgsConstructor(onConstructor_ = @Autowired)
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@RestController
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public class CaptchaController {
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private final CaptchaProperties captchaProperties;
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private final ISysConfigService configService;
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/**
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* 生成验证码
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*/
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@ApiOperation("生成验证码")
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@GetMapping("/captchaImage")
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public AjaxResult<Map<String, Object>> getCode() {
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Map<String, Object> ajax = new HashMap<>();
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boolean captchaOnOff = configService.selectCaptchaOnOff();
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ajax.put("captchaOnOff", captchaOnOff);
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if (!captchaOnOff) {
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return AjaxResult.success(ajax);
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}
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// 保存验证码信息
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String uuid = IdUtil.simpleUUID();
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String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
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// 生成验证码
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CaptchaType captchaType = captchaProperties.getType();
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boolean isMath = CaptchaType.MATH == captchaType;
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Integer length = isMath ? captchaProperties.getNumberLength() : captchaProperties.getCharLength();
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CodeGenerator codeGenerator = ReflectUtils.newInstance(captchaType.getClazz(), length);
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AbstractCaptcha captcha = SpringUtils.getBean(captchaProperties.getCategory().getClazz());
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captcha.setGenerator(codeGenerator);
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captcha.createCode();
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String code = isMath ? getCodeResult(captcha.getCode()) : captcha.getCode();
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RedisUtils.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
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ajax.put("uuid", uuid);
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ajax.put("img", captcha.getImageBase64());
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return AjaxResult.success(ajax);
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}
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private String getCodeResult(String capStr) {
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int numberLength = captchaProperties.getNumberLength();
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int a = Convert.toInt(StringUtils.substring(capStr, 0, numberLength).trim());
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char operator = capStr.charAt(numberLength);
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int b = Convert.toInt(StringUtils.substring(capStr, numberLength + 1, numberLength + 1 + numberLength).trim());
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switch (operator) {
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case '*':
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return Convert.toStr(a * b);
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case '+':
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return Convert.toStr(a + b);
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case '-':
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return Convert.toStr(a - b);
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default:
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return StringUtils.EMPTY;
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}
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}
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}
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