/*
 * Copyright 2004-present the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.security.web.authentication;

import java.io.IOException;

import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

import org.springframework.security.core.Authentication;

/**
 * Strategy used to handle a successful user authentication.
 * <p>
 * Implementations can do whatever they want but typical behaviour would be to control the
 * navigation to the subsequent destination (using a redirect or a forward). For example,
 * after a user has logged in by submitting a login form, the application needs to decide
 * where they should be redirected to afterwards (see
 * {@link AbstractAuthenticationProcessingFilter} and subclasses). Other logic may also be
 * included if required.
 *
 * @author Luke Taylor
 * @since 3.0
 */
public interface AuthenticationSuccessHandler {

	/**
	 * Called when a user has been successfully authenticated.
	 * @param request the request which caused the successful authentication
	 * @param response the response
	 * @param chain the {@link FilterChain} which can be used to proceed other filters in
	 * the chain
	 * @param authentication the <tt>Authentication</tt> object which was created during
	 * the authentication process.
	 * @since 5.2.0
	 */
	default void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, FilterChain chain,
			Authentication authentication) throws IOException, ServletException {
		onAuthenticationSuccess(request, response, authentication);
		chain.doFilter(request, response);
	}

	/**
	 * Called when a user has been successfully authenticated.
	 * @param request the request which caused the successful authentication
	 * @param response the response
	 * @param authentication the <tt>Authentication</tt> object which was created during
	 * the authentication process.
	 */
	void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
			Authentication authentication) throws IOException, ServletException;

}
