spring security IpAddressServerWebExchangeMatcher 源码
spring security IpAddressServerWebExchangeMatcher 代码
文件路径：/web/src/main/java/org/springframework/security/web/server/util/matcher/IpAddressServerWebExchangeMatcher.java
/*
* Copyright 2002-2021 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.util.matcher;
import reactor.core.publisher.Mono;
import org.springframework.security.web.util.matcher.IpAddressMatcher;
import org.springframework.util.Assert;
import org.springframework.web.server.ServerWebExchange;
/**
* Matches a request based on IP Address or subnet mask matching against the remote
* address.
*
* @author Guirong Hu
* @since 5.7
*/
public final class IpAddressServerWebExchangeMatcher implements ServerWebExchangeMatcher {
private final IpAddressMatcher ipAddressMatcher;
/**
* Takes a specific IP address or a range specified using the IP/Netmask (e.g.
* 192.168.1.0/24 or 202.24.0.0/14).
* @param ipAddress the address or range of addresses from which the request must
* come.
*/
public IpAddressServerWebExchangeMatcher(String ipAddress) {
Assert.hasText(ipAddress, "IP address cannot be empty");
this.ipAddressMatcher = new IpAddressMatcher(ipAddress);
}
@Override
public Mono<MatchResult> matches(ServerWebExchange exchange) {
// @formatter:off
return Mono.justOrEmpty(exchange.getRequest().getRemoteAddress())
.map((remoteAddress) -> remoteAddress.getAddress().getHostAddress())
.map(this.ipAddressMatcher::matches)
.flatMap((matches) -> matches ? MatchResult.match() : MatchResult.notMatch())
.switchIfEmpty(MatchResult.notMatch());
// @formatter:on
}
@Override
public String toString() {
return "IpAddressServerWebExchangeMatcher{ipAddressMatcher=" + this.ipAddressMatcher + '}';
}
}
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