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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public Socket CreateUdpBroadcastSocket(int localPort)
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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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2017-03-13 00:08:23 -04:00
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var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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try
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{
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socket.EnableBroadcast = true;
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socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
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socket.Bind(new IPEndPoint(IPAddress.Any, localPort));
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2017-03-13 00:08:23 -04:00
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2023-02-16 12:15:12 -05:00
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return socket;
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}
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catch
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{
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socket?.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 Socket CreateSsdpUdpSocket(IPData bindInterface, int localPort)
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{
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ArgumentNullException.ThrowIfNull(bindInterface.Address);
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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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2023-02-16 12:15:12 -05:00
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var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, 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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socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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socket.Bind(new IPEndPoint(bindInterface.Address, localPort));
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2016-12-04 16:30:38 -05:00
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2023-02-16 12:15:12 -05:00
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return socket;
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}
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catch
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{
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socket?.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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/// <inheritdoc />
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public Socket CreateUdpMulticastSocket(IPAddress multicastAddress, IPData bindInterface, int multicastTimeToLive, int localPort)
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{
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var bindIPAddress = bindInterface.Address;
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ArgumentNullException.ThrowIfNull(multicastAddress);
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ArgumentNullException.ThrowIfNull(bindIPAddress);
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2022-07-21 03:26:18 -04:00
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2019-03-13 12:51:33 -04:00
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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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2023-02-16 12:15:12 -05:00
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var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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2017-11-10 16:22:38 -05:00
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try
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{
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2023-02-17 12:24:13 -05:00
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var interfaceIndex = bindInterface.Index;
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var interfaceIndexSwapped = (int)IPAddress.HostToNetworkOrder(interfaceIndex);
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2016-12-04 16:30:38 -05:00
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2023-02-16 12:15:12 -05:00
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socket.MulticastLoopback = false;
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socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
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socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true);
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socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, multicastTimeToLive);
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2023-02-17 12:24:13 -05:00
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socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastInterface, interfaceIndexSwapped);
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socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(multicastAddress, interfaceIndex));
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socket.Bind(new IPEndPoint(multicastAddress, localPort));
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2020-06-24 12:23:16 -04:00
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2023-02-16 12:15:12 -05:00
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return socket;
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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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2023-02-16 12:15:12 -05:00
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socket?.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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