feat : Naver 로그인 타입 추가

놀이터(예제 코드 작성)/spring-security/src/main/kotlin/com/banjjoknim/playground/domain/auth/OAuth2Type.kt

@@ -5,7 +5,8 @@ enum class OAuth2Type(
     private val createUserInfo: (attributes: Map<String, Any?>) -> OAuth2UserInfo
 ) {
     GOOGLE("google", { attributes -> GoogleUserInfo(attributes) }),
-    FACEBOOK("facebook", { attributes -> FacebookUserInfo(attributes) });
+    FACEBOOK("facebook", { attributes -> FacebookUserInfo(attributes) }),
+    NAVER("naver", { attributes -> NaverUserInfo(attributes) });
 
     fun createOAuth2UserInfo(attributes: Map<String, Any?>): OAuth2UserInfo {
         return createUserInfo(attributes)

놀이터(예제 코드 작성)/spring-security/src/main/kotlin/com/banjjoknim/playground/domain/auth/OAuth2UserInfos.kt

@@ -53,5 +53,33 @@ class FacebookUserInfo(
     override fun getName(): String {
         return attributes["name"] as String
     }
-
+}
+
+class NaverUserInfo(
+    /**
+     * DefaultOAuth2Service#loadUser(OAuth2UserRequest)
+     * ```kotlin
+     * val oAuth2User = super.loadUser(userRequest)
+     * val attributes = oAuth2User.attributes
+     * ```
+     */
+    private val attributes: Map<String, Any?>
+): OAuth2UserInfo {
+    private val response = attributes["response"] as Map<*, *>
+
+    override fun getProviderId(): String {
+        return response["id"] as String
+    }
+
+    override fun getProvider(): String {
+        return "naver"
+    }
+
+    override fun getEmail(): String {
+        return response["email"] as String
+    }
+
+    override fun getName(): String {
+        return response["name"] as String
+    }
 }