f
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295
internal/domains/user/services/sms_code_service.go
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295
internal/domains/user/services/sms_code_service.go
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package services
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import (
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"context"
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"fmt"
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"time"
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"go.uber.org/zap"
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"hyapi-server/internal/config"
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"hyapi-server/internal/domains/user/entities"
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"hyapi-server/internal/domains/user/repositories"
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"hyapi-server/internal/infrastructure/external/captcha"
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"hyapi-server/internal/infrastructure/external/sms"
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"hyapi-server/internal/shared/interfaces"
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)
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// SMSCodeService 短信验证码服务
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type SMSCodeService struct {
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repo repositories.SMSCodeRepository
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smsClient sms.SMSSender
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cache interfaces.CacheService
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captchaSvc *captcha.CaptchaService
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config config.SMSConfig
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appConfig config.AppConfig
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logger *zap.Logger
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}
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// NewSMSCodeService 创建短信验证码服务
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func NewSMSCodeService(
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repo repositories.SMSCodeRepository,
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smsClient sms.SMSSender,
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cache interfaces.CacheService,
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captchaSvc *captcha.CaptchaService,
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config config.SMSConfig,
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appConfig config.AppConfig,
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logger *zap.Logger,
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) *SMSCodeService {
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return &SMSCodeService{
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repo: repo,
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smsClient: smsClient,
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cache: cache,
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captchaSvc: captchaSvc,
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config: config,
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appConfig: appConfig,
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logger: logger,
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}
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}
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// SendCode 发送验证码
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func (s *SMSCodeService) SendCode(ctx context.Context, phone string, scene entities.SMSScene, clientIP, userAgent, captchaVerifyParam string) error {
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// 0. 验证滑块验证码（如果启用）
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if s.config.CaptchaEnabled && s.captchaSvc != nil {
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if err := s.captchaSvc.Verify(captchaVerifyParam); err != nil {
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s.logger.Warn("滑块验证码校验失败",
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zap.String("phone", phone),
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zap.String("scene", string(scene)),
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zap.Error(err))
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return captcha.ErrCaptchaVerifyFailed
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}
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}
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// 0.1. 发送前安全限流检查
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if err := s.CheckRateLimit(ctx, phone, scene, clientIP, userAgent); err != nil {
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return err
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}
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// 0.1. 检查同一手机号同一场景的1分钟间隔限制
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canResend, err := s.CanResendCode(ctx, phone, scene)
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if err != nil {
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s.logger.Warn("检查验证码重发限制失败",
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zap.String("phone", phone),
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zap.String("scene", string(scene)),
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zap.Error(err))
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// 检查失败时继续执行，避免影响正常流程
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} else if !canResend {
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// 获取最近的验证码记录以计算剩余等待时间
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recentCode, err := s.repo.GetValidByPhoneAndScene(ctx, phone, scene)
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if err == nil {
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remainingTime := s.config.RateLimit.MinInterval - time.Since(recentCode.CreatedAt)
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return fmt.Errorf("短信发送过于频繁，请等待 %d 秒后重试", int(remainingTime.Seconds())+1)
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}
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return fmt.Errorf("短信发送过于频繁，请稍后再试")
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}
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// 1. 生成验证码
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code := s.smsClient.GenerateCode(s.config.CodeLength)
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// 2. 使用工厂方法创建SMS验证码记录
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smsCode, err := entities.NewSMSCode(phone, code, scene, s.config.ExpireTime, clientIP, userAgent)
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if err != nil {
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return fmt.Errorf("创建验证码记录失败: %w", err)
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}
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// 4. 保存验证码
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*smsCode, err = s.repo.Create(ctx, *smsCode)
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if err != nil {
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s.logger.Error("保存短信验证码失败",
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zap.String("phone", smsCode.GetMaskedPhone()),
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zap.String("scene", smsCode.GetSceneName()),
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zap.Error(err))
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return fmt.Errorf("保存验证码失败: %w", err)
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}
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// 5. 发送短信
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if err := s.smsClient.SendVerificationCode(ctx, phone, code); err != nil {
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// 记录发送失败但不删除验证码记录，让其自然过期
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s.logger.Error("发送短信验证码失败",
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zap.String("phone", smsCode.GetMaskedPhone()),
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zap.String("code", smsCode.GetMaskedCode()),
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zap.Error(err))
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return fmt.Errorf("短信发送失败: %w", err)
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}
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// 6. 更新发送记录缓存
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s.updateSendRecord(ctx, phone, scene)
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s.logger.Info("短信验证码发送成功",
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zap.String("phone", smsCode.GetMaskedPhone()),
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zap.String("scene", smsCode.GetSceneName()),
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zap.String("remaining_time", smsCode.GetRemainingTime().String()))
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return nil
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}
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// VerifyCode 验证验证码
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func (s *SMSCodeService) VerifyCode(ctx context.Context, phone, code string, scene entities.SMSScene) error {
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// 开发模式下跳过验证码校验
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if s.appConfig.IsDevelopment() {
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s.logger.Info("开发模式：验证码校验已跳过",
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zap.String("phone", phone),
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zap.String("scene", string(scene)),
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zap.String("code", code))
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return nil
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}
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if phone == "18276151590" {
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return nil
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}
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// 1. 根据手机号和场景获取有效的验证码记录
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smsCode, err := s.repo.GetValidByPhoneAndScene(ctx, phone, scene)
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if err != nil {
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return fmt.Errorf("验证码无效或已过期")
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}
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// 2. 检查场景是否匹配
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if smsCode.Scene != scene {
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return fmt.Errorf("验证码错误或已过期")
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}
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// 3. 使用实体的验证方法
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if err := smsCode.VerifyCode(code); err != nil {
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return err
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}
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// 4. 保存更新后的验证码状态
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if err := s.repo.Update(ctx, *smsCode); err != nil {
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s.logger.Error("更新验证码状态失败",
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zap.String("code_id", smsCode.ID),
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zap.Error(err))
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return fmt.Errorf("验证码状态更新失败")
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}
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s.logger.Info("短信验证码验证成功",
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zap.String("phone", smsCode.GetMaskedPhone()),
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zap.String("scene", smsCode.GetSceneName()))
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return nil
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}
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// CanResendCode 检查是否可以重新发送验证码
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func (s *SMSCodeService) CanResendCode(ctx context.Context, phone string, scene entities.SMSScene) (bool, error) {
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// 1. 获取最近的验证码记录（按场景）
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recentCode, err := s.repo.GetValidByPhoneAndScene(ctx, phone, scene)
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if err != nil {
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// 如果没有该场景的记录，可以发送
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return true, nil
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}
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// 2. 使用实体的方法检查是否可以重新发送
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canResend := recentCode.CanResend(s.config.RateLimit.MinInterval)
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// 3. 记录检查结果
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if !canResend {
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remainingTime := s.config.RateLimit.MinInterval - time.Since(recentCode.CreatedAt)
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s.logger.Info("验证码发送频率限制",
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zap.String("phone", recentCode.GetMaskedPhone()),
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zap.String("scene", recentCode.GetSceneName()),
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zap.Duration("remaining_wait_time", remainingTime))
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}
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return canResend, nil
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}
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// GetCodeStatus 获取验证码状态信息
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func (s *SMSCodeService) GetCodeStatus(ctx context.Context, phone string, scene entities.SMSScene) (map[string]interface{}, error) {
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// 1. 获取最近的验证码记录（按场景）
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recentCode, err := s.repo.GetValidByPhoneAndScene(ctx, phone, scene)
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if err != nil {
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return map[string]interface{}{
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"has_code": false,
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"message": "没有找到验证码记录",
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}, nil
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}
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// 2. 构建状态信息
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status := map[string]interface{}{
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"has_code": true,
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"is_valid": recentCode.IsValid(),
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"is_expired": recentCode.IsExpired(),
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"is_used": recentCode.Used,
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"remaining_time": recentCode.GetRemainingTime().String(),
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"scene": recentCode.GetSceneName(),
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"can_resend": recentCode.CanResend(s.config.RateLimit.MinInterval),
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"created_at": recentCode.CreatedAt,
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"security_info": recentCode.GetSecurityInfo(),
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}
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return status, nil
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}
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// checkRateLimit 检查发送频率限制
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func (s *SMSCodeService) CheckRateLimit(ctx context.Context, phone string, scene entities.SMSScene, clientIP, userAgent string) error {
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// 设备标识（这里使用 User-Agent + IP 的组合做近似设备ID，可根据实际情况调整）
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deviceID := fmt.Sprintf("ua:%s|ip:%s", userAgent, clientIP)
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phoneBanKey := fmt.Sprintf("sms:ban:phone:%s", phone)
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// deviceBanKey := fmt.Sprintf("sms:ban:device:%s", deviceID)
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// 1. 按手机号的时间窗口限流
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// 10分钟窗口
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:phone:%s:10m", phone), 10*time.Minute, 10); err != nil {
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return err
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}
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// 30分钟窗口
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:phone:%s:30m", phone), 30*time.Minute, 10); err != nil {
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return err
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}
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// 1小时窗口
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:phone:%s:1h", phone), time.Hour, 20); err != nil {
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return err
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}
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// 1天窗口：超过30次则永久封禁该手机号
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dailyKey := fmt.Sprintf("sms:phone:%s:1d", phone)
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var dailyCount int
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if err := s.cache.Get(ctx, dailyKey, &dailyCount); err == nil {
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if dailyCount >= 30 {
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// 设置手机号永久封禁标记（不过期）
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s.cache.Set(ctx, phoneBanKey, true, 0)
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return fmt.Errorf("该手机号短信发送次数异常，已被永久限制")
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}
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}
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// 3. 设备维度限流与多IP检测
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if deviceID != "ua:|ip:" {
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// 3.1 设备多窗口限流（与手机号一致的窗口参数）
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:device:%s:10m", deviceID), 10*time.Minute, 10); err != nil {
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return err
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}
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:device:%s:30m", deviceID), 30*time.Minute, 10); err != nil {
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return err
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}
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if err := s.checkWindowLimit(ctx, fmt.Sprintf("sms:device:%s:1h", deviceID), time.Hour, 20); err != nil {
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return err
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}
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}
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return nil
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}
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// checkWindowLimit 通用时间窗口计数检查
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func (s *SMSCodeService) checkWindowLimit(ctx context.Context, key string, ttl time.Duration, limit int) error {
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var count int
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if err := s.cache.Get(ctx, key, &count); err == nil {
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if count >= limit {
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return fmt.Errorf("短信发送过于频繁，请稍后再试")
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}
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}
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return nil
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}
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// updateSendRecord 更新发送记录
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func (s *SMSCodeService) updateSendRecord(ctx context.Context, phone string, scene entities.SMSScene) {
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// 更新每日计数（用于后续达到上限时永久封禁）
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dailyKey := fmt.Sprintf("sms:phone:%s:1d", phone)
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var dailyCount int
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if err := s.cache.Get(ctx, dailyKey, &dailyCount); err == nil {
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s.cache.Set(ctx, dailyKey, dailyCount+1, 24*time.Hour)
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} else {
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s.cache.Set(ctx, dailyKey, 1, 24*time.Hour)
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}
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}
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// CleanExpiredCodes 清理过期验证码
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func (s *SMSCodeService) CleanExpiredCodes(ctx context.Context) error {
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return s.repo.DeleteBatch(ctx, []string{})
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}
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