DRAW-390 feat: 구글 로그인

adapter/oauth/build.gradle.kts

@@ -10,6 +10,7 @@ dependencies {
 
     implementation("org.springframework.boot:spring-boot-starter:${Versions.SPRING_BOOT}")
     implementation("org.springframework.cloud:spring-cloud-starter-openfeign:${Versions.OPEN_FEIGN}")
+    implementation("com.google.api-client:google-api-client:${Versions.GOOGLE_API_CLIENT}")
 }
 
 tasks {

adapter/oauth/src/main/kotlin/com/xorker/draw/oauth/OAuthAdapter.kt

@@ -3,15 +3,18 @@ package com.xorker.draw.oauth
 import com.xorker.draw.auth.AuthRepository
 import com.xorker.draw.auth.AuthType
 import com.xorker.draw.oauth.apple.AppleAuthService
+import com.xorker.draw.oauth.google.GoogleAuthService
 import org.springframework.stereotype.Component
 
 @Component
 internal class OAuthAdapter(
     private val appleAuthService: AppleAuthService,
+    private val googleAuthService: GoogleAuthService,
 ) : AuthRepository {
     override fun getPlatformUserId(authType: AuthType, token: String): String {
         return when (authType) {
             AuthType.APPLE_ID_TOKEN -> appleAuthService.getPlatformUserId(token)
+            AuthType.GOOGLE_ID_TOKEN -> googleAuthService.getPlatformUserId(token)
         }
     }
 

adapter/oauth/src/main/kotlin/com/xorker/draw/oauth/google/GoogleApiConfiguration.kt

@@ -0,0 +1,8 @@
+package com.xorker.draw.oauth.google
+
+import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+@EnableConfigurationProperties(GoogleApiProperties::class)
+class GoogleApiConfiguration

adapter/oauth/src/main/kotlin/com/xorker/draw/oauth/google/GoogleApiProperties.kt

@@ -0,0 +1,8 @@
+package com.xorker.draw.oauth.google
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+
+@ConfigurationProperties("social.google")
+data class GoogleApiProperties(
+    val clientId: String,
+)

adapter/oauth/src/main/kotlin/com/xorker/draw/oauth/google/GoogleAuthService.kt

@@ -0,0 +1,27 @@
+package com.xorker.draw.oauth.google
+
+import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier
+import com.google.api.client.http.javanet.NetHttpTransport
+import com.google.api.client.json.gson.GsonFactory
+import com.xorker.draw.exception.OAuthFailureException
+import java.security.GeneralSecurityException
+import org.springframework.stereotype.Component
+
+@Component
+internal class GoogleAuthService(
+    googleApiProperties: GoogleApiProperties,
+) {
+    private val idTokenVerifier =
+        GoogleIdTokenVerifier.Builder(NetHttpTransport(), GsonFactory.getDefaultInstance())
+            .setAudience(listOf(googleApiProperties.clientId))
+            .build()
+
+    fun getPlatformUserId(token: String): String {
+        try {
+            val idToken = idTokenVerifier.verify(token)
+            return idToken?.payload?.subject ?: throw OAuthFailureException
+        } catch (e: GeneralSecurityException) {
+            throw OAuthFailureException
+        }
+    }
+}

adapter/oauth/src/main/resources/application-oauth.yml

@@ -2,3 +2,5 @@ oauth:
     apple:
         iss: https://appleid.apple.com
         client-id: ${APPLE_CLIENT_ID}
+    google:
+        client-id: ${GOOGLE_CLIENT_ID}

buildSrc/src/main/kotlin/Versions.kt

@@ -15,4 +15,5 @@ object Versions {
     const val MICROMETER = "1.12.9"
     const val SENTRY = "7.0.0"
     const val FIREBASE = "9.3.0"
+    const val GOOGLE_API_CLIENT = "1.32.1"
 }

domain/src/main/kotlin/com/xorker/draw/auth/AuthPlatform.kt

@@ -2,5 +2,7 @@ package com.xorker.draw.auth
 
 enum class AuthPlatform(description: String) {
     APPLE("애플"),
+    GOOGLE("구글"),
+
     ;
 }

domain/src/main/kotlin/com/xorker/draw/auth/AuthType.kt

@@ -2,4 +2,5 @@ package com.xorker.draw.auth
 
 enum class AuthType(val authPlatform: AuthPlatform) {
     APPLE_ID_TOKEN(AuthPlatform.APPLE),
+    GOOGLE_ID_TOKEN(AuthPlatform.GOOGLE),
 }