52 lines
1.4 KiB
C#
52 lines
1.4 KiB
C#
using System.Linq;
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using System.Net;
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using Server.Network;
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namespace Server.Misc
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{
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public class IPLimiter
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{
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public static IPAddress[] Exemptions =
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{
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// IPAddress.Parse( "127.0.0.1" ),
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};
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public static bool Enabled { get; private set; }
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public static bool SocketBlock { get; private set; }
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public static int MaxAddresses { get; private set; }
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public static void Configure()
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{
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Enabled = ServerConfiguration.GetOrUpdateSetting("ipLimiter.enable", true);
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SocketBlock = ServerConfiguration.GetOrUpdateSetting("ipLimiter.blockAtConnection", true);
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MaxAddresses = ServerConfiguration.GetOrUpdateSetting("ipLimiter.maxConnectionsPerIP", 10);
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}
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public static bool IsExempt(IPAddress ip) => Exemptions.Contains(ip);
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public static bool Verify(IPAddress ourAddress)
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{
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if (!Enabled || IsExempt(ourAddress))
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return true;
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var netStates = TcpServer.Instances;
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var count = 0;
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for (var i = 0; i < netStates.Count; ++i)
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{
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var compState = netStates[i];
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if (ourAddress.Equals(compState.Address))
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{
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++count;
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if (count >= MaxAddresses)
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return false;
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}
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}
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return true;
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}
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}
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}
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