spring SpringBootWebSecurityConfiguration 源码

springboot SpringBootWebSecurityConfiguration 代码

文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/servlet/SpringBootWebSecurityConfiguration.java

/*
 * Copyright 2012-2022 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.autoconfigure.security.servlet;

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.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.autoconfigure.security.ConditionalOnDefaultWebSecurity;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.security.config.BeanIds;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.web.SecurityFilterChain;

/**
 * {@link Configuration @Configuration} class securing servlet applications.
 *
 * @author Madhura Bhave
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnWebApplication(type = Type.SERVLET)
class SpringBootWebSecurityConfiguration {

	/**
	 * The default configuration for web security. It relies on Spring Security's
	 * content-negotiation strategy to determine what sort of authentication to use. If
	 * the user specifies their own {@code WebSecurityConfigurerAdapter} or
	 * {@link SecurityFilterChain} bean, this will back-off completely and the users
	 * should specify all the bits that they want to configure as part of the custom
	 * security configuration.
	 */
	@Configuration(proxyBeanMethods = false)
	@ConditionalOnDefaultWebSecurity
	static class SecurityFilterChainConfiguration {

		@Bean
		@Order(SecurityProperties.BASIC_AUTH_ORDER)
		SecurityFilterChain defaultSecurityFilterChain(HttpSecurity http) throws Exception {
			http.authorizeRequests().anyRequest().authenticated();
			http.formLogin();
			http.httpBasic();
			return http.build();
		}

	}

	/**
	 * Adds the {@link EnableWebSecurity @EnableWebSecurity} annotation if Spring Security
	 * is on the classpath. This will make sure that the annotation is present with
	 * default security auto-configuration and also if the user adds custom security and
	 * forgets to add the annotation. If {@link EnableWebSecurity @EnableWebSecurity} has
	 * already been added or if a bean with name
	 * {@value BeanIds#SPRING_SECURITY_FILTER_CHAIN} has been configured by the user, this
	 * will back-off.
	 */
	@Configuration(proxyBeanMethods = false)
	@ConditionalOnMissingBean(name = BeanIds.SPRING_SECURITY_FILTER_CHAIN)
	@ConditionalOnClass(EnableWebSecurity.class)
	@EnableWebSecurity
	static class WebSecurityEnablerConfiguration {

	}

}

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