/*
 * Copyright 2012-2019 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.boot.actuate.autoconfigure.security.reactive;

import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.health.HealthEndpointAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.info.InfoEndpointAutoConfiguration;
import org.springframework.boot.actuate.health.HealthEndpoint;
import org.springframework.boot.actuate.info.InfoEndpoint;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.security.oauth2.client.reactive.ReactiveOAuth2ClientAutoConfiguration;
import org.springframework.boot.autoconfigure.security.oauth2.resource.reactive.ReactiveOAuth2ResourceServerAutoConfiguration;
import org.springframework.boot.autoconfigure.security.reactive.ReactiveSecurityAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
import org.springframework.security.config.web.server.ServerHttpSecurity;
import org.springframework.security.web.server.SecurityWebFilterChain;
import org.springframework.security.web.server.WebFilterChainProxy;

/**
 * {@link EnableAutoConfiguration Auto-configuration} for Reactive Spring Security when
 * actuator is on the classpath. Specifically, it permits access to the health and info
 * endpoints while securing everything else.
 *
 * @author Madhura Bhave
 * @since 2.1.0
 */
@Configuration
@ConditionalOnClass({ EnableWebFluxSecurity.class, WebFilterChainProxy.class })
@ConditionalOnMissingBean({ SecurityWebFilterChain.class, WebFilterChainProxy.class })
@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
@AutoConfigureBefore(ReactiveSecurityAutoConfiguration.class)
@AutoConfigureAfter({ HealthEndpointAutoConfiguration.class,
		InfoEndpointAutoConfiguration.class, WebEndpointAutoConfiguration.class,
		ReactiveOAuth2ClientAutoConfiguration.class,
		ReactiveOAuth2ResourceServerAutoConfiguration.class })
public class ReactiveManagementWebSecurityAutoConfiguration {

	@Bean
	public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
		return http.authorizeExchange()
				.matchers(EndpointRequest.to(HealthEndpoint.class, InfoEndpoint.class))
				.permitAll().anyExchange().authenticated().and().httpBasic().and()
				.formLogin().and().build();
	}

}
