org.springframework.security.web.server.WebFilterChainProxy Maven / Gradle / Ivy
/*
* Copyright 2002-2017 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.web.server;
import java.util.Arrays;
import java.util.List;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import org.springframework.web.server.handler.DefaultWebFilterChain;
import org.springframework.web.server.handler.FilteringWebHandler;
/**
* Used to delegate to a List of {@link SecurityWebFilterChain} instances.
*
* @author Rob Winch
* @since 5.0
*/
public class WebFilterChainProxy implements WebFilter {
private final List filters;
public WebFilterChainProxy(List filters) {
this.filters = filters;
}
public WebFilterChainProxy(SecurityWebFilterChain... filters) {
this.filters = Arrays.asList(filters);
}
@Override
public Mono filter(ServerWebExchange exchange, WebFilterChain chain) {
return Flux.fromIterable(this.filters)
.filterWhen((securityWebFilterChain) -> securityWebFilterChain.matches(exchange)).next()
.switchIfEmpty(chain.filter(exchange).then(Mono.empty()))
.flatMap((securityWebFilterChain) -> securityWebFilterChain.getWebFilters().collectList())
.map((filters) -> new FilteringWebHandler(chain::filter, filters)).map(DefaultWebFilterChain::new)
.flatMap((securedChain) -> securedChain.filter(exchange));
}
}