org.springframework.security.web.server.context.WebSessionServerSecurityContextRepository Maven / Gradle / Ivy
/*
* Copyright 2002-2018 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
*
* http://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.web.server.context;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.util.Assert;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebSession;
import reactor.core.publisher.Mono;
/**
* Stores the {@link SecurityContext} in the
* {@link org.springframework.web.server.WebSession}. When a {@link SecurityContext} is
* saved, the session id is changed to prevent session fixation attacks.
* @author Rob Winch
* @since 5.0
*/
public class WebSessionServerSecurityContextRepository
implements ServerSecurityContextRepository {
/**
* The default session attribute name to save and load the {@link SecurityContext}
*/
public static final String DEFAULT_SPRING_SECURITY_CONTEXT_ATTR_NAME = "SPRING_SECURITY_CONTEXT";
private String springSecurityContextAttrName = DEFAULT_SPRING_SECURITY_CONTEXT_ATTR_NAME;
/**
* Sets the session attribute name used to save and load the {@link SecurityContext}
* @param springSecurityContextAttrName the session attribute name to use to save and
* load the {@link SecurityContext}
*/
public void setSpringSecurityContextAttrName(String springSecurityContextAttrName) {
Assert.hasText(springSecurityContextAttrName, "springSecurityContextAttrName cannot be null or empty");
this.springSecurityContextAttrName = springSecurityContextAttrName;
}
public Mono save(ServerWebExchange exchange, SecurityContext context) {
return exchange.getSession()
.doOnNext(session -> {
if (context == null) {
session.getAttributes().remove(this.springSecurityContextAttrName);
} else {
session.getAttributes().put(this.springSecurityContextAttrName, context);
}
})
.flatMap(session -> session.changeSessionId());
}
public Mono load(ServerWebExchange exchange) {
return exchange.getSession()
.map(WebSession::getAttributes)
.flatMap( attrs -> {
SecurityContext context = (SecurityContext) attrs.get(this.springSecurityContextAttrName);
return Mono.justOrEmpty(context);
});
}
}