NtlmServletRequest.java

/**
 * Waffle (https://github.com/Waffle/waffle)
 *
 * Copyright (c) 2010-2017 Application Security, Inc.
 *
 * All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse
 * Public License v1.0 which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors: Application Security, Inc.
 */
package waffle.util;

import javax.servlet.http.HttpServletRequest;

/**
 * The Class NtlmServletRequest.
 *
 * @author dblock[at]dblock[dot]org
 */
public final class NtlmServletRequest {

    /**
     * Instantiates a new ntlm servlet request.
     */
    private NtlmServletRequest() {
        // Prevent Instantiation of object
    }

    /**
     * Returns a unique connection id for a given servlet request.
     * 
     * @param request
     *            Servlet request.
     * @return String.
     */
    public static String getConnectionId(final HttpServletRequest request) {
        String remoteHost = NtlmServletRequest.getRemoteHost(request);
        return String.join(":", remoteHost == null ? "" : remoteHost, String.valueOf(request.getRemotePort()));
    }

    /**
     * Gets the remote host.
     *
     * @param request
     *            the request
     * @return the remote host
     */
    private static String getRemoteHost(final HttpServletRequest request) {
        return request.getRemoteHost() == null ? request.getRemoteAddr() : request.getRemoteHost();
    }

}