feat(oauth): OAuth2User 클래스에 OAuthProvider를 필드로 추가한 CustomOAuth2User 추가

Author: m-a-king

src/main/java/com/somemore/global/auth/oauth/domain/CustomOAuth2User.java

@@ -0,0 +1,36 @@
+package com.somemore.global.auth.oauth.domain;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+
+import java.util.Collection;
+import java.util.Map;
+
+@RequiredArgsConstructor
+@Getter
+public class CustomOAuth2User implements OAuth2User {
+
+    private final OAuth2User oAuth2User;
+    private final OAuthProvider provider;
+
+    @Override
+    public Map<String, Object> getAttributes() {
+        return oAuth2User.getAttributes();
+    }
+
+    @Override
+    public Collection<? extends GrantedAuthority> getAuthorities() {
+        return oAuth2User.getAuthorities();
+    }
+
+    @Override
+    public String getName() {
+        return oAuth2User.getName();
+    }
+
+    public static CustomOAuth2User of(OAuth2User oAuth2User, OAuthProvider oAuthProvider) {
+        return new CustomOAuth2User(oAuth2User, oAuthProvider);
+    }
+}