spring security SpringSecurityAuthenticationSource 源码

spring security SpringSecurityAuthenticationSource 代码

文件路径：/ldap/src/main/java/org/springframework/security/ldap/authentication/SpringSecurityAuthenticationSource.java

/*
 * Copyright 2002-2022 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.security.ldap.authentication;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.ldap.core.AuthenticationSource;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.context.SecurityContextHolderStrategy;
import org.springframework.security.ldap.userdetails.LdapUserDetails;
import org.springframework.util.Assert;

/**
 * An AuthenticationSource to retrieve authentication information stored in Spring
 * Security's {@link SecurityContextHolder}.
 * <p>
 * This is a copy of Spring LDAP's AcegiAuthenticationSource, updated for use with Spring
 * Security 2.0.
 *
 * @author Mattias Arthursson
 * @author Luke Taylor
 * @since 2.0
 */
public class SpringSecurityAuthenticationSource implements AuthenticationSource {

	private static final Log log = LogFactory.getLog(SpringSecurityAuthenticationSource.class);

	private SecurityContextHolderStrategy securityContextHolderStrategy = SecurityContextHolder
			.getContextHolderStrategy();

	/**
	 * Get the principals of the logged in user, in this case the distinguished name.
	 * @return the distinguished name of the logged in user.
	 */
	@Override
	public String getPrincipal() {
		Authentication authentication = this.securityContextHolderStrategy.getContext().getAuthentication();
		if (authentication == null) {
			log.debug("Returning empty String as Principal since authentication is null");
			return "";
		}
		Object principal = authentication.getPrincipal();
		if (principal instanceof LdapUserDetails) {
			LdapUserDetails details = (LdapUserDetails) principal;
			return details.getDn();
		}
		if (authentication instanceof AnonymousAuthenticationToken) {
			log.debug("Returning empty String as Principal since authentication is anonymous");
			return "";
		}
		throw new IllegalArgumentException(
				"The principal property of the authentication object" + "needs to be an LdapUserDetails.");
	}

	/**
	 * @see org.springframework.ldap.core.AuthenticationSource#getCredentials()
	 */
	@Override
	public String getCredentials() {
		Authentication authentication = this.securityContextHolderStrategy.getContext().getAuthentication();
		if (authentication == null) {
			log.debug("Returning empty String as Credentials since authentication is null");
			return "";
		}
		return (String) authentication.getCredentials();
	}

	/**
	 * Sets the {@link SecurityContextHolderStrategy} to use. The default action is to use
	 * the {@link SecurityContextHolderStrategy} stored in {@link SecurityContextHolder}.
	 *
	 * @since 5.8
	 */
	public void setSecurityContextHolderStrategy(SecurityContextHolderStrategy securityContextHolderStrategy) {
		Assert.notNull(securityContextHolderStrategy, "securityContextHolderStrategy cannot be null");
		this.securityContextHolderStrategy = securityContextHolderStrategy;
	}

}

相关信息

spring security 源码目录

相关文章

spring security AbstractLdapAuthenticationProvider 源码

spring security AbstractLdapAuthenticator 源码

spring security BindAuthenticator 源码

spring security LdapAuthenticationProvider 源码

spring security LdapAuthenticator 源码

spring security LdapEncoder 源码

spring security NullLdapAuthoritiesPopulator 源码

spring security PasswordComparisonAuthenticator 源码

spring security UserDetailsServiceLdapAuthoritiesPopulator 源码

spring security package-info 源码