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/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSim Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System.Net;

namespace OpenSim.Framework
{
    public class HGNetworkServersInfo
    {

        public readonly string LocalAssetServerURI, LocalInventoryServerURI, LocalUserServerURI;

        private static HGNetworkServersInfo m_singleton;
        public static HGNetworkServersInfo Singleton
        {
            get { return m_singleton; }
        }

        public static void Init(string assetserver, string inventoryserver, string userserver)
        {
            m_singleton = new HGNetworkServersInfo(assetserver, inventoryserver, userserver);

        }

        private HGNetworkServersInfo(string a, string i, string u)
        {
            LocalAssetServerURI = ServerURI(a);
            LocalInventoryServerURI = ServerURI(i);
            LocalUserServerURI = ServerURI(u);
        }

        public bool IsLocalUser(string userserver)
        {
            string userServerURI = ServerURI(userserver);
            bool ret = (((userServerURI == null) || (userServerURI == "") || (userServerURI == LocalUserServerURI)));
            //m_log.Debug("-------------> HGNetworkServersInfo.IsLocalUser? " + ret + "(userServer=" + userServerURI + "; localuserserver=" + LocalUserServerURI + ")");
            return ret;
        }

        public bool IsLocalUser(UserProfileData userData)
        {
            if (userData != null)
            {
                if (userData is ForeignUserProfileData)
                    return IsLocalUser(((ForeignUserProfileData)userData).UserServerURI);
                else
                    return true;
            }
            else
                // Something fishy; ignore it
                return true;
        }

        public static string ServerURI(string uri)
        {
            // Get rid of eventual slashes at the end
            try
            {
                if (uri.EndsWith("/"))
                    uri = uri.Substring(0, uri.Length - 1);
            }
            catch { }

            IPAddress ipaddr1 = null;
            string port1 = "";
            try
            {
                ipaddr1 = Util.GetHostFromURL(uri);
            }
            catch { }

            try
            {
                port1 = uri.Split(new char[] { ':' })[2];
            }
            catch { }

            // We tried our best to convert the domain names to IP addresses
            return (ipaddr1 != null) ? "http://" + ipaddr1.ToString() + ":" + port1 : uri;
        }

    }
}