feat: 테넌트 그룹(Tenant Group) 기능 구현 #239

backend/internal/handler/auth_handler.go

@@ -125,10 +125,11 @@ func GenerateSecureAlnumToken(length int) string {
 
 func GenerateUserCode() string {
 	const letters = "ABCDEFGHJKLMNPQRSTUVWXYZ"
-	return fmt.Sprintf("%c%c-%03d",
+	// [Fixed] 요청하신 포맷 (영문 2자리 + 숫자 6자리, 하이픈 없음)으로 변경
+	return fmt.Sprintf("%c%c%06d",
 		letters[rand.Intn(len(letters))],
 		letters[rand.Intn(len(letters))],
-		rand.Intn(1000),
+		rand.Intn(1000000),
 	)
 }
 
@@ -958,13 +959,20 @@ func (h *AuthHandler) InitEnchantedLink(c *fiber.Ctx) error {
 		return c.Status(fiber.StatusServiceUnavailable).JSON(fiber.Map{"error": "Identity provider unavailable"})
 	}
 
-	// [Changed] 토큰 길이를 사용자의 요청에 맞춰 6글자(3바이트)로, pendingRef를 8글자(4바이트)로 조정
 	userCode := GenerateUserCode()
 	token := GenerateSecureToken(3)
 	pendingRef := GenerateSecureToken(3)
 
 	slog.Info("[Enchanted] Initiating enchanted link", "loginID", loginID, "token", token, "pendingRef", pendingRef)
 
+	// [Added] 사용자가 입력할 간편 코드를 Redis에 저장합니다. (이게 없으면 인증이 안 됩니다)
+	shortCodePayload, _ := json.Marshal(shortLoginCodePayload{
+		LoginID:    lookupLoginID,
+		Code:       token, 
+		PendingRef: pendingRef,
+	})
+	h.RedisService.Set(prefixLoginCodeShort+userCode, string(shortCodePayload), defaultExpiration)
+
 	// Store in Redis
 	sessionData, _ := json.Marshal(map[string]string{
 		"status":  statusPending,
@@ -1018,12 +1026,13 @@ func (h *AuthHandler) InitEnchantedLink(c *fiber.Ctx) error {
 		}
 	} else {
 		// Send SMS
-		content := fmt.Sprintf("[Baron 로그인] 로그인 링크: %s | 코드: %s", link, userCode)
+		phone := sanitizePhoneForSms(loginID)
+		content := fmt.Sprintf("[Baron 로그인] 로그인 링크: %s | 간편 코드: %s", link, userCode)
 		if drySend {
-			slog.Info("[Enchanted][DrySend] SMS send skipped", "loginID", loginID, "content", content)
+			slog.Info("[Enchanted][DrySend] SMS send skipped", "loginID", phone, "content", content)
 		} else {
-			slog.Info("[Enchanted] Sending SMS via Naver Cloud", "loginID", loginID)
-			if err := h.SmsService.SendSms(loginID, content); err != nil {
+			slog.Info("[Enchanted] Sending SMS via Naver Cloud", "to", phone)
+			if err := h.SmsService.SendSms(phone, content); err != nil {
 				slog.Error("[Enchanted] SMS Failed", "error", err)
 				return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{"error": "Failed to send SMS"})
 			}
@@ -2066,6 +2075,16 @@ type kratosCourierRequest struct {
 	Body         string                 `json:"body"`
 }
 
+// sanitizePhoneForSms - 네이버 SMS 등 국내 발송기를 위해 +82 형식을 010 형식으로 변환합니다.
+func sanitizePhoneForSms(phone string) string {
+	p := strings.ReplaceAll(phone, "-", "")
+	p = strings.ReplaceAll(p, " ", "")
+	if strings.HasPrefix(p, "+82") {
+		return "0" + p[3:]
+	}
+	return p
+}
+
 // HandleKratosCourierRelay - Kratos courier HTTP 요청을 받아 메일/SMS 발송으로 변환합니다.
 func (h *AuthHandler) HandleKratosCourierRelay(c *fiber.Ctx) error {
 	var req kratosCourierRequest
@@ -2444,16 +2463,6 @@ func extractFirstString(data map[string]interface{}, keys ...string) string {
 	return ""
 }
 
-func sanitizePhoneForSms(phone string) string {
-	sanitized := strings.TrimSpace(phone)
-	if strings.HasPrefix(sanitized, "+82") {
-		sanitized = "0" + sanitized[3:]
-	}
-	sanitized = strings.ReplaceAll(sanitized, "-", "")
-	sanitized = strings.ReplaceAll(sanitized, " ", "")
-	return sanitized
-}
-
 // --- User Profile Handlers ---
 
 func (h *AuthHandler) formatPhoneForDisplay(phone string) string {