package org.dromara.auth.controller;
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import cn.dev33.satoken.annotation.SaIgnore;
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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.util.IdUtil;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.dromara.auth.domain.vo.CaptchaVo;
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import org.dromara.auth.enums.CaptchaType;
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import org.dromara.auth.properties.CaptchaProperties;
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import org.dromara.common.core.constant.Constants;
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import org.dromara.common.core.constant.GlobalConstants;
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import org.dromara.common.core.domain.R;
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import org.dromara.common.core.utils.SpringUtils;
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import org.dromara.common.core.utils.StringUtils;
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import org.dromara.common.core.utils.reflect.ReflectUtils;
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import org.dromara.common.ratelimiter.annotation.RateLimiter;
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import org.dromara.common.ratelimiter.enums.LimitType;
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import org.dromara.common.redis.utils.RedisUtils;
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import org.springframework.expression.Expression;
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import org.springframework.expression.ExpressionParser;
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import org.springframework.expression.spel.standard.SpelExpressionParser;
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import org.springframework.validation.annotation.Validated;
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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.time.Duration;
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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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@SaIgnore
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@Slf4j
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@Validated
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@RequiredArgsConstructor
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@RestController
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public class CaptchaController {
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private final CaptchaProperties captchaProperties;
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/**
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* 生成验证码
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*/
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@RateLimiter(time = 60, count = 10, limitType = LimitType.IP)
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@GetMapping("/code")
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public R<CaptchaVo> getCode() {
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CaptchaVo captchaVo = new CaptchaVo();
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boolean captchaEnabled = captchaProperties.getEnabled();
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if (!captchaEnabled) {
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captchaVo.setCaptchaEnabled(false);
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return R.ok(captchaVo);
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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 = GlobalConstants.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 = captcha.getCode();
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if (isMath) {
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ExpressionParser parser = new SpelExpressionParser();
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Expression exp = parser.parseExpression(StringUtils.remove(code, "="));
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code = exp.getValue(String.class);
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}
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RedisUtils.setCacheObject(verifyKey, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
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captchaVo.setUuid(uuid);
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captchaVo.setImg(captcha.getImageBase64());
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return R.ok(captchaVo);
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}
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}
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