Merge pull request #77 from ConnectCo/fix/coupon

fix: 구글 로그인 방식 수정

Author: junseokkim

build.gradle

@@ -44,6 +44,7 @@ dependencies {
 	implementation 'io.jsonwebtoken:jjwt-api:0.11.5'
 	implementation 'io.jsonwebtoken:jjwt-impl:0.11.5'
 	implementation 'io.jsonwebtoken:jjwt-jackson:0.11.5'
+	implementation 'com.auth0:java-jwt:4.4.0'
 
 	// WebClient
 	implementation 'org.springframework.boot:spring-boot-starter-webflux'

src/main/java/com/connectCo/domain/member/client/GoogleMemberClient.java

@@ -1,31 +1,18 @@
 package com.connectCo.domain.member.client;
 
-import com.connectCo.domain.member.dto.client.GoogleMemberResponse;
-import com.connectCo.global.exception.CustomApiException;
-import com.connectCo.global.exception.ErrorCode;
+import com.auth0.jwt.JWT;
+import com.auth0.jwt.interfaces.DecodedJWT;
 import org.springframework.stereotype.Component;
-import org.springframework.web.reactive.function.client.WebClient;
 
 @Component
 public class GoogleMemberClient {
-    private final WebClient webClient;
 
-    public GoogleMemberClient(WebClient.Builder webClientBuilder) {
-        this.webClient = webClientBuilder
-                .baseUrl("https://www.googleapis.com/oauth2/v3/userinfo")
-                .build();
-    }
-
-    public String getGoogleUserId(String accessToken) {
-        GoogleMemberResponse response = webClient
-                .get()
-                .header("Authorization", "Bearer " + accessToken)
-                .retrieve()
-                .bodyToMono(GoogleMemberResponse.class)
-                .block();
-        if(response != null) {
-            return response.getSub();
+    public String getGoogleUserId(String idToken) {
+        try {
+            DecodedJWT decodedJWT = JWT.decode(idToken);
+            return decodedJWT.getClaim("sub").asString(); // 사용자 고유 ID 반환
+        } catch (Exception e) {
+            throw new RuntimeException("Invalid Google ID Token", e);
         }
-        throw new CustomApiException(ErrorCode.INVALID_GOOGLE_TOKEN);
     }
 }

src/main/java/com/connectCo/domain/member/service/AuthServiceImpl.java

@@ -43,8 +43,7 @@ public class AuthServiceImpl implements AuthService{
     @Override
     @Transactional
     public AuthTokenResponse login(String accessToken, LoginType provider) {
-        String clientId = UUID.randomUUID().toString();
-//        String clientId = getClientIdByProvider(accessToken, provider);
+        String clientId = getClientIdByProvider(accessToken, provider);
         Optional<Member> member = memberRepository.findByClientIdAndLoginType(clientId, provider);
 
         if (member.isPresent()) {