io.undertow.attribute.RemoteObfuscatedIPAttribute Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2019 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.attribute;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.NetworkUtils;
import java.net.InetAddress;
import java.net.InetSocketAddress;
/**
* The remote IP address
*
* @author Stuart Douglas
*/
public class RemoteObfuscatedIPAttribute implements ExchangeAttribute {
public static final String REMOTE_OBFUSCATED_IP_SHORT = "%o";
public static final String REMOTE_OBFUSCATED_IP = "%{REMOTE_OBFUSCATED_IP}";
public static final ExchangeAttribute INSTANCE = new RemoteObfuscatedIPAttribute();
private RemoteObfuscatedIPAttribute() {
}
@Override
public String readAttribute(final HttpServerExchange exchange) {
final InetSocketAddress sourceAddress = exchange.getSourceAddress();
InetAddress address = sourceAddress.getAddress();
if (address == null) {
//this can happen when we have an unresolved X-forwarded-for address
//in this case we just return the IP of the balancer
address = ((InetSocketAddress) exchange.getConnection().getPeerAddress()).getAddress();
}
if(address == null) {
return null;
}
return NetworkUtils.toObfuscatedString(address);
}
@Override
public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException {
throw new ReadOnlyAttributeException("Remote Obfuscated IP", newValue);
}
@Override
public String toString() {
return REMOTE_OBFUSCATED_IP;
}
public static final class Builder implements ExchangeAttributeBuilder {
@Override
public String name() {
return "Remote Obfuscated IP";
}
@Override
public ExchangeAttribute build(final String token) {
if (token.equals(REMOTE_OBFUSCATED_IP) || token.equals(REMOTE_OBFUSCATED_IP_SHORT)) {
return RemoteObfuscatedIPAttribute.INSTANCE;
}
return null;
}
@Override
public int priority() {
return 0;
}
}
}