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Spring Boot Admin Sample using Consul
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/*
 * Copyright 2014-2023 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 de.codecentric.boot.admin.sample;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;
import org.springframework.security.web.csrf.CookieCsrfTokenRepository;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;

import de.codecentric.boot.admin.server.config.AdminServerProperties;
import de.codecentric.boot.admin.server.config.EnableAdminServer;

@SpringBootApplication
@EnableDiscoveryClient
@EnableAdminServer
public class SpringBootAdminConsulApplication {

	public static void main(String[] args) {
		SpringApplication.run(SpringBootAdminConsulApplication.class, args);
	}

	@Profile("insecure")
	@Configuration(proxyBeanMethods = false)
	public static class SecurityPermitAllConfig {

		private final String adminContextPath;

		public SecurityPermitAllConfig(AdminServerProperties adminServerProperties) {
			this.adminContextPath = adminServerProperties.getContextPath();
		}

		@Bean
		protected SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
			http.authorizeHttpRequests((authorizeRequests) -> authorizeRequests.anyRequest().permitAll())
				.csrf((csrf) -> csrf.csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
					.ignoringRequestMatchers(
							new AntPathRequestMatcher(this.adminContextPath + "/instances", HttpMethod.POST.toString()),
							new AntPathRequestMatcher(this.adminContextPath + "/instances/*",
									HttpMethod.DELETE.toString()),
							new AntPathRequestMatcher(this.adminContextPath + "/actuator/**")));
			return http.build();
		}

	}

	@Profile("secure")
	@Configuration(proxyBeanMethods = false)
	public static class SecuritySecureConfig {

		private final String adminContextPath;

		public SecuritySecureConfig(AdminServerProperties adminServerProperties) {
			this.adminContextPath = adminServerProperties.getContextPath();
		}

		@Bean
		protected SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
			SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
			successHandler.setTargetUrlParameter("redirectTo");
			successHandler.setDefaultTargetUrl(this.adminContextPath + "/");

			http.authorizeHttpRequests((authorizeRequests) -> authorizeRequests
				.requestMatchers(new AntPathRequestMatcher(this.adminContextPath + "/assets/**"))
				.permitAll()
				.requestMatchers(new AntPathRequestMatcher(this.adminContextPath + "/login"))
				.permitAll()
				.anyRequest()
				.authenticated())
				.formLogin((formLogin) -> formLogin.loginPage(this.adminContextPath + "/login")
					.successHandler(successHandler))
				.logout((logout) -> logout.logoutUrl(this.adminContextPath + "/logout"))
				.httpBasic(Customizer.withDefaults())
				.csrf((csrf) -> csrf.csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
					.ignoringRequestMatchers(
							new AntPathRequestMatcher(this.adminContextPath + "/instances", HttpMethod.POST.toString()),
							new AntPathRequestMatcher(this.adminContextPath + "/instances/*",
									HttpMethod.DELETE.toString()),
							new AntPathRequestMatcher(this.adminContextPath + "/actuator/**")));

			return http.build();
		}

	}

}