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package com.takensoft.common.oauth.handler;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;
import org.springframework.stereotype.Component;
import java.io.IOException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
/**
* @author takensoft
* @since 2025.05.22
* @modification
* since | author | description
* 2025.05.22 | takensoft | 최초 등록
*
* OAuth2 로그인 실패 핸들러
*/
@Slf4j
@Component
@RequiredArgsConstructor
public class OAuth2AuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler {
@Value("${front.url}")
private String FRONT_URL;
@Override
public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException{
String errorMessage = mapErrorMessage(exception);
String encodedMessage = URLEncoder.encode(errorMessage, StandardCharsets.UTF_8);
String redirectUrl = String.format("%s/login?error=oauth2_failed&message=%s",
FRONT_URL, encodedMessage);
getRedirectStrategy().sendRedirect(request, response, redirectUrl);
}
/**
* 에러 메시지 매핑
*/
private String mapErrorMessage(AuthenticationException exception) {
String message = exception.getMessage();
if (message == null) {
return "OAuth2 로그인에 실패했습니다.";
}
if (message.contains("access_denied")) {
return "사용자가 인증을 취소했습니다.";
}
if (message.contains("invalid_request")) {
return "잘못된 OAuth2 요청입니다.";
}
if (message.contains("unauthorized_client")) {
return "인증되지 않은 클라이언트입니다.";
}
if (message.contains("server_error")) {
return "OAuth2 서버 오류가 발생했습니다.";
}
return "OAuth2 로그인에 실패했습니다.";
}
}