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Spring Boot Actuator AutoConfigure
/*
* Copyright 2012-2024 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 reactor.core.publisher.Mono;
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.autoconfigure.AutoConfiguration;
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.boot.autoconfigure.security.reactive.ReactiveUserDetailsServiceAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.security.authentication.ReactiveAuthenticationManager;
import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
import org.springframework.security.config.web.server.SecurityWebFiltersOrder;
import org.springframework.security.config.web.server.ServerHttpSecurity;
import org.springframework.security.core.userdetails.ReactiveUserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.web.server.SecurityWebFilterChain;
import org.springframework.security.web.server.WebFilterChainProxy;
import org.springframework.web.cors.reactive.PreFlightRequestHandler;
import org.springframework.web.cors.reactive.PreFlightRequestWebFilter;
import static org.springframework.security.config.Customizer.withDefaults;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Reactive Spring Security when
* actuator is on the classpath. Specifically, it permits access to the health endpoint
* while securing everything else.
*
* @author Madhura Bhave
* @since 2.1.0
*/
@AutoConfiguration(before = ReactiveSecurityAutoConfiguration.class,
after = { HealthEndpointAutoConfiguration.class, InfoEndpointAutoConfiguration.class,
WebEndpointAutoConfiguration.class, ReactiveOAuth2ClientAutoConfiguration.class,
ReactiveOAuth2ResourceServerAutoConfiguration.class,
ReactiveUserDetailsServiceAutoConfiguration.class })
@ConditionalOnClass({ EnableWebFluxSecurity.class, WebFilterChainProxy.class })
@ConditionalOnMissingBean({ SecurityWebFilterChain.class, WebFilterChainProxy.class })
@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
public class ReactiveManagementWebSecurityAutoConfiguration {
@Bean
public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http, PreFlightRequestHandler handler) {
http.authorizeExchange((exchanges) -> {
exchanges.matchers(EndpointRequest.to(HealthEndpoint.class)).permitAll();
exchanges.anyExchange().authenticated();
});
PreFlightRequestWebFilter filter = new PreFlightRequestWebFilter(handler);
http.addFilterAt(filter, SecurityWebFiltersOrder.CORS);
http.httpBasic(withDefaults());
http.formLogin(withDefaults());
return http.build();
}
@Bean
@ConditionalOnMissingBean({ ReactiveAuthenticationManager.class, ReactiveUserDetailsService.class })
ReactiveAuthenticationManager denyAllAuthenticationManager() {
return (authentication) -> Mono.error(new UsernameNotFoundException(authentication.getName()));
}
}