2021-05-20 15:28:18 -04:00
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#nullable disable
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2020-05-29 05:28:19 -04:00
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#pragma warning disable CS1591
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2019-01-13 14:54:44 -05:00
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using System;
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2016-11-04 04:31:05 -04:00
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using System.Net;
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using System.Net.Sockets;
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using MediaBrowser.Model.Net;
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2017-08-16 02:43:41 -04:00
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namespace Emby.Server.Implementations.Net
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2016-11-04 04:31:05 -04:00
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{
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public class SocketFactory : ISocketFactory
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{
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2021-09-03 12:46:34 -04:00
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/// <inheritdoc />
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2017-03-13 00:08:23 -04:00
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public ISocket CreateUdpBroadcastSocket(int localPort)
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{
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2019-03-13 12:51:33 -04:00
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if (localPort < 0)
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{
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throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort));
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}
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2017-03-13 00:08:23 -04:00
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var retVal = new Socket(AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Dgram, System.Net.Sockets.ProtocolType.Udp);
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try
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{
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2020-06-24 12:11:02 -04:00
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retVal.EnableBroadcast = true;
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2017-03-13 00:08:23 -04:00
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retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
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return new UdpSocket(retVal, localPort, IPAddress.Any);
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}
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catch
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{
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2019-03-13 12:51:33 -04:00
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retVal?.Dispose();
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2017-03-13 00:08:23 -04:00
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throw;
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}
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}
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2017-08-17 16:19:02 -04:00
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2021-09-03 12:46:34 -04:00
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/// <inheritdoc />
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public ISocket CreateSsdpUdpSocket(IPAddress localIp, int localPort)
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2016-11-04 04:31:05 -04:00
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{
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2019-03-13 12:51:33 -04:00
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if (localPort < 0)
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{
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throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort));
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}
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2016-11-04 04:31:05 -04:00
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2016-11-08 13:44:23 -05:00
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var retVal = new Socket(AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Dgram, System.Net.Sockets.ProtocolType.Udp);
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2016-11-04 04:31:05 -04:00
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try
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{
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2020-06-24 12:11:02 -04:00
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retVal.EnableBroadcast = true;
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2016-11-04 04:31:05 -04:00
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retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 4);
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2016-12-04 16:30:38 -05:00
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2021-09-03 12:46:34 -04:00
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retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse("239.255.255.250"), localIp));
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return new UdpSocket(retVal, localPort, localIp);
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2016-11-04 04:31:05 -04:00
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}
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catch
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{
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2019-03-13 12:51:33 -04:00
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retVal?.Dispose();
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2016-11-04 04:31:05 -04:00
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throw;
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}
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}
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2021-09-03 12:46:34 -04:00
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/// <inheritdoc />
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2020-06-24 12:11:02 -04:00
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public ISocket CreateUdpMulticastSocket(string ipAddress, int multicastTimeToLive, int localPort)
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2016-11-04 04:31:05 -04:00
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{
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2019-03-13 12:51:33 -04:00
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if (ipAddress == null)
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{
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throw new ArgumentNullException(nameof(ipAddress));
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}
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if (ipAddress.Length == 0)
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{
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throw new ArgumentException("ipAddress cannot be an empty string.", nameof(ipAddress));
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}
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if (multicastTimeToLive <= 0)
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{
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throw new ArgumentException("multicastTimeToLive cannot be zero or less.", nameof(multicastTimeToLive));
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}
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if (localPort < 0)
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{
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throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort));
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}
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2016-11-04 04:31:05 -04:00
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2016-11-08 13:44:23 -05:00
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var retVal = new Socket(AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Dgram, System.Net.Sockets.ProtocolType.Udp);
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2016-11-04 04:31:05 -04:00
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try
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{
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2017-08-17 16:19:02 -04:00
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// not supported on all platforms. throws on ubuntu with .net core 2.0
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2017-05-24 15:12:55 -04:00
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retVal.ExclusiveAddressUse = false;
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2017-08-17 16:19:02 -04:00
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}
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catch (SocketException)
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{
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}
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try
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{
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2017-11-10 16:22:38 -05:00
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// seeing occasional exceptions thrown on qnap
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// System.Net.Sockets.SocketException (0x80004005): Protocol not available
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2016-11-04 04:31:05 -04:00
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retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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2017-11-10 16:22:38 -05:00
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}
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catch (SocketException)
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{
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}
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try
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{
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2020-06-24 12:11:02 -04:00
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retVal.EnableBroadcast = true;
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2020-06-14 05:11:11 -04:00
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// retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
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2016-11-04 04:31:05 -04:00
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retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, multicastTimeToLive);
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2016-12-04 16:30:38 -05:00
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var localIp = IPAddress.Any;
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retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse(ipAddress), localIp));
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2016-11-04 04:31:05 -04:00
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retVal.MulticastLoopback = true;
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2020-06-24 12:23:16 -04:00
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2016-12-04 16:30:38 -05:00
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return new UdpSocket(retVal, localPort, localIp);
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2016-11-04 04:31:05 -04:00
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}
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catch
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{
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2019-03-13 12:51:33 -04:00
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retVal?.Dispose();
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2016-11-04 04:31:05 -04:00
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throw;
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}
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}
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}
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}
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