/*
 * 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.config.annotation.web.configurers;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.test.SpringTestContext;
import org.springframework.security.config.test.SpringTestContextExtension;
import org.springframework.security.test.context.annotation.SecurityTestExecutionListeners;
import org.springframework.security.test.context.support.WithMockUser;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.logout.HeaderWriterLogoutHandler;
import org.springframework.security.web.header.writers.ClearSiteDataHeaderWriter;
import org.springframework.security.web.header.writers.ClearSiteDataHeaderWriter.Directive;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder;

import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;

/**
 *
 * Tests for {@link HeaderWriterLogoutHandler} that passing
 * {@link ClearSiteDataHeaderWriter} implementation.
 *
 * @author Rafiullah Hamedy
 *
 */
@ExtendWith({ SpringExtension.class, SpringTestContextExtension.class })
@SecurityTestExecutionListeners
public class LogoutConfigurerClearSiteDataTests {

	private static final String CLEAR_SITE_DATA_HEADER = "Clear-Site-Data";

	private static final Directive[] SOURCE = { Directive.CACHE, Directive.COOKIES, Directive.STORAGE,
			Directive.EXECUTION_CONTEXTS };

	private static final String HEADER_VALUE = "\"cache\", \"cookies\", \"storage\", \"executionContexts\"";

	public final SpringTestContext spring = new SpringTestContext(this);

	@Autowired
	MockMvc mvc;

	@Test
	@WithMockUser
	public void logoutWhenRequestTypeGetThenHeaderNotPresentt() throws Exception {
		this.spring.register(HttpLogoutConfig.class).autowire();
		MockHttpServletRequestBuilder logoutRequest = get("/logout").secure(true).with(csrf());
		this.mvc.perform(logoutRequest).andExpect(header().doesNotExist(CLEAR_SITE_DATA_HEADER));
	}

	@Test
	@WithMockUser
	public void logoutWhenRequestTypePostAndNotSecureThenHeaderNotPresent() throws Exception {
		this.spring.register(HttpLogoutConfig.class).autowire();
		MockHttpServletRequestBuilder logoutRequest = post("/logout").with(csrf());
		this.mvc.perform(logoutRequest).andExpect(header().doesNotExist(CLEAR_SITE_DATA_HEADER));
	}

	@Test
	@WithMockUser
	public void logoutWhenRequestTypePostAndSecureThenHeaderIsPresent() throws Exception {
		this.spring.register(HttpLogoutConfig.class).autowire();
		MockHttpServletRequestBuilder logoutRequest = post("/logout").secure(true).with(csrf());
		this.mvc.perform(logoutRequest).andExpect(header().stringValues(CLEAR_SITE_DATA_HEADER, HEADER_VALUE));
	}

	@Configuration
	@EnableWebSecurity
	static class HttpLogoutConfig {

		@Bean
		SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
			// @formatter:off
			http
				.logout((logout) -> logout
					.addLogoutHandler(new HeaderWriterLogoutHandler(new ClearSiteDataHeaderWriter(SOURCE))));
			return http.build();
			// @formatter:on
		}

	}

}
