[Feat] User 테이블에 엑세스토큰 저장하게하여 다중로그인 방지 (임시처리)

ontime-back/src/main/java/devkor/ontime_back/entity/User.java

@@ -48,6 +48,8 @@ public class User {
 
     private String socialId; // 로그인한 소셜 타입의 식별자 값 (일반 로그인인 경우 null)
 
+    private String accessToken; // accessToken
+
     private String refreshToken; // refreshToken
 
     private String firebaseToken;
@@ -126,4 +128,8 @@ public void updateNote(String note) {
     public void updateFirebaseToken(String firebaseToken) {
         this.firebaseToken = firebaseToken;
     }
+
+    public void updateAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
 }

ontime-back/src/main/java/devkor/ontime_back/global/generallogin/handler/LoginSuccessHandler.java

@@ -39,7 +39,7 @@ public void onAuthenticationSuccess(HttpServletRequest request, HttpServletRespo
                     // 수정된 부분: 응답 헤더에 AccessToken, RefreshToken 실어서 응답
                     jwtTokenProvider.sendAccessAndRefreshToken(response, accessToken, refreshToken);
 
-                    // 수정된 부분: RefreshToken을 User 엔티티에 업데이트 후 저장
+                    user.updateAccessToken(accessToken);
                     user.updateRefreshToken(refreshToken);
                     userRepository.saveAndFlush(user);
 

ontime-back/src/main/java/devkor/ontime_back/global/jwt/JwtTokenProvider.java

@@ -166,6 +166,8 @@ public boolean isTokenValid(String token) {
 
     public boolean isAccessTokenValid(String token) {
         try {
+            userRepository.findByAccessToken(token)
+                    .orElseThrow(() -> new InvalidAccessTokenException("유효하지 않은 엑세스 토큰입니다."));
             JWT.require(Algorithm.HMAC512(secretKey)).build().verify(token);
             log.info("유효한 엑세스 토큰입니다.");
             return true;

ontime-back/src/main/java/devkor/ontime_back/repository/UserRepository.java

@@ -23,4 +23,6 @@ public interface UserRepository extends JpaRepository<User, Long> {
 
     @Query("SELECT u.spareTime FROM User u WHERE u.id = :id")
     Integer findSpareTimeById(Long id);
+
+    Optional<Object> findByAccessToken(String token);
 }

ontime-back/src/main/resources/db/migration/V4__add_field_accesstoken_to_user.sql

@@ -0,0 +1 @@
+ALTER TABLE user ADD COLUMN access_token VARCHAR(255);