CaptchaController.java
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package com.lego.web.controller.common;
import cn.dev33.satoken.annotation.SaIgnore;
import cn.hutool.captcha.AbstractCaptcha;
import cn.hutool.captcha.generator.CodeGenerator;
import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.RandomUtil;
import com.lego.common.constant.CacheConstants;
import com.lego.common.constant.Constants;
import com.lego.common.core.domain.R;
import com.lego.common.enums.CaptchaType;
import com.lego.common.utils.StringUtils;
import com.lego.common.utils.email.MailUtils;
import com.lego.common.utils.redis.RedisUtils;
import com.lego.common.utils.reflect.ReflectUtils;
import com.lego.common.utils.spring.SpringUtils;
import com.lego.framework.config.properties.CaptchaProperties;
import com.lego.framework.config.properties.MailProperties;
import com.lego.system.service.ISysConfigService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.expression.Expression;
import org.springframework.expression.ExpressionParser;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.validation.constraints.NotBlank;
import java.time.Duration;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* 验证码操作处理
*
* @author Lion Li
*/
@SaIgnore
@Slf4j
@Validated
@RequiredArgsConstructor
@RestController
public class CaptchaController {
private final CaptchaProperties captchaProperties;
private final ISysConfigService configService;
private final MailProperties mailProperties;
/**
* 邮箱验证码
*
* @param email 邮箱
*/
@GetMapping("/captchaEmail")
public R<Void> emailCode(@NotBlank(message = "{user.email.not.blank}") String email) {
if (!mailProperties.getEnabled()) {
return R.fail("当前系统没有开启邮箱功能！");
}
String key = CacheConstants.CAPTCHA_CODE_KEY + email;
String code = RandomUtil.randomNumbers(4);
RedisUtils.setCacheObject(key, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
try {
MailUtils.sendText(email, "登录验证码", "您本次验证码为：" + code + "，有效性为" + Constants.CAPTCHA_EXPIRATION + "分钟，请尽快填写。");
} catch (Exception e) {
log.error("验证码短信发送异常 => {}", e.getMessage());
return R.fail(e.getMessage());
}
return R.ok();
}
/**
* 生成验证码
*/
@GetMapping("/captchaImage")
public R<Map<String, Object>> getCode() {
Map<String, Object> ajax = new HashMap<>();
boolean captchaEnabled = configService.selectCaptchaEnabled();
ajax.put("captchaEnabled", captchaEnabled);
if (!captchaEnabled) {
return R.ok(ajax);
}
// 保存验证码信息
String uuid = IdUtil.simpleUUID();
String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + uuid;
// 生成验证码
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 = captcha.getCode();
if (isMath) {
ExpressionParser parser = new SpelExpressionParser();
Expression exp = parser.parseExpression(StringUtils.remove(code, "="));
code = exp.getValue(String.class);
}
RedisUtils.setCacheObject(verifyKey, code, Duration.ofMinutes(Constants.CAPTCHA_EXPIRATION));
ajax.put("uuid", uuid);
ajax.put("img", captcha.getImageBase64());
return R.ok(ajax);
}
}