/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License).  You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the license at
 * https://glassfish.dev.java.net/public/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Copyright (c) Ericsson AB, 2004-2007. All rights reserved.
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 */
package org.jvnet.glassfish.comms.clb.core;

import org.jvnet.glassfish.comms.clb.proxy.http.util.HttpRequest;


/**
 *
 * @author kshitiz
 */
public class ProxyKeyExtractor {
    /** Creates a new instance of ProxyKeyExtractor */
    public ProxyKeyExtractor() {
    }

    /**
     * This method checks if request is already proxied. It checks for proxy header corresponding to
     * BERoute key and BEKey. If present, the request is already proxied, otherwise not.
     *
     * @param request the request object
     *
     * @return true if request is already proxied
     */
    public static boolean isHttpRequestProxied(HttpRequest request) {
        String value;

        // check for proxy header corresponding to BEROUTE key
        value = request.getHeader(CLBConstants.PROXY_HEADER_BEROUTE_KEY);

        if (value != null) {
            return true;
        }

        // check for proxy header corresponding to BEKEY key
        value = request.getHeader(CLBConstants.PROXY_HEADER_BEROUTE_KEY);

        if (value != null) {
            return true;
        }

        return false;
    }
}
