001/*
002 * Copyright 2012-2018 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.boot.autoconfigure.security.reactive;
018
019import reactor.core.publisher.Flux;
020
021import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
022import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
023import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
024import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
025import org.springframework.boot.autoconfigure.security.SecurityProperties;
026import org.springframework.boot.context.properties.EnableConfigurationProperties;
027import org.springframework.context.annotation.Configuration;
028import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
029import org.springframework.security.web.server.WebFilterChainProxy;
030
031/**
032 * {@link EnableAutoConfiguration Auto-configuration} for Spring Security in a reactive
033 * application. Switches on {@link EnableWebFluxSecurity} for a reactive web application
034 * if this annotation has not been added by the user. It delegates to Spring Security's
035 * content-negotiation mechanism for authentication. This configuration also backs off if
036 * a bean of type {@link WebFilterChainProxy} has been configured in any other way.
037 *
038 * @author Madhura Bhave
039 * @since 2.0.0
040 */
041@Configuration
042@EnableConfigurationProperties(SecurityProperties.class)
043@ConditionalOnClass({ Flux.class, EnableWebFluxSecurity.class,
044                WebFilterChainProxy.class })
045public class ReactiveSecurityAutoConfiguration {
046
047        @Configuration
048        @ConditionalOnMissingBean(WebFilterChainProxy.class)
049        @ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
050        @EnableWebFluxSecurity
051        static class EnableWebFluxSecurityConfiguration {
052
053        }
054
055}