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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server;
import java.util.Objects;
import javax.servlet.http.HttpServletRequest;
/**
* Customizes requests that lack the {@code Host} header (for example, HTTP 1.0 requests).
* <p />
* In case of HTTP 1.0 requests that lack the {@code Host} header, the application may issue
* a redirect, and the {@code Location} header is usually constructed from the {@code Host}
* header; if the {@code Host} header is missing, the server may query the connector for its
* IP address in order to construct the {@code Location} header, and thus leak to clients
* internal IP addresses.
* <p />
* This {@link HttpConfiguration.Customizer} is configured with a {@code serverName} and
* optionally a {@code serverPort}.
* If the {@code Host} header is absent, the configured {@code serverName} will be set on
* the request so that {@link HttpServletRequest#getServerName()} will return that value,
* and likewise for {@code serverPort} and {@link HttpServletRequest#getServerPort()}.
*/
public class HostHeaderCustomizer implements HttpConfiguration.Customizer
{
private final String serverName;
private final int serverPort;
/**
* @param serverName the {@code serverName} to set on the request (the {@code serverPort} will not be set)
*/
public HostHeaderCustomizer(String serverName)
{
this(serverName, 0);
}
/**
* @param serverName the {@code serverName} to set on the request
* @param serverPort the {@code serverPort} to set on the request
*/
public HostHeaderCustomizer(String serverName, int serverPort)
{
this.serverName = Objects.requireNonNull(serverName);
this.serverPort = serverPort;
}
@Override
public void customize(Connector connector, HttpConfiguration channelConfig, Request request)
{
if (request.getHeader("Host") == null)
request.setAuthority(serverName,serverPort); // TODO set the field as well?
}
}
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