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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 OpenSimulator 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.Collections.Generic;
using System.Net;
using OpenSim.Framework.Client;
using OpenSim.Region.Framework.Scenes;
namespace OpenSim.Region.CoreModules.Agent.IPBan
{
internal class SceneBanner
{
private static readonly log4net.ILog m_log
= log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private List<string> bans;
private SceneBase m_scene;
public SceneBanner(SceneBase scene, List<string> banList)
{
scene.EventManager.OnClientConnect += EventManager_OnClientConnect;
bans = banList;
m_scene = scene;
}
void EventManager_OnClientConnect(IClientCore client)
{
// Only need to run through all this if there are entries in the ban list
if (bans.Count > 0)
{
IClientIPEndpoint ipEndpoint;
if (client.TryGet(out ipEndpoint))
{
IPAddress end = ipEndpoint.EndPoint;
try
{
IPHostEntry rDNS = Dns.GetHostEntry(end);
foreach (string ban in bans)
{
if (rDNS.HostName.Contains(ban) ||
end.ToString().StartsWith(ban))
{
client.Disconnect("Banned - network \"" + ban + "\" is not allowed to connect to this server.");
m_log.Warn("[IPBAN] Disconnected '" + end + "' due to '" + ban + "' ban.");
return;
}
}
}
catch (System.Net.Sockets.SocketException sex)
{
m_log.WarnFormat("[IPBAN] IP address \"{0}\" cannot be resolved via DNS", end);
}
// m_log.DebugFormat("[IPBAN] User \"{0}\" not in any ban lists. Allowing connection.", end);
}
}
}
}
}
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