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first pass at binding to multiple network addresses

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pull/702/head
Luke Pulverenti 8 years ago
parent 598f1cf2bd
commit 8c8f2aaba5
11 changed files with 177 additions and 117 deletions
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2
MediaBrowser.Common/Net/INetworkManager.cs
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@ -47,7 +47,7 @@ namespace MediaBrowser.Common.Net
/// <returns><c>true</c> if [is in local network] [the specified endpoint]; otherwise, <c>false</c>.</returns>
bool IsInLocalNetwork(string endpoint);
IEnumerable<IpAddressInfo> GetLocalIpAddresses();
List<IpAddressInfo> GetLocalIpAddresses();
IpAddressInfo ParseIpAddress(string ipAddress);

2
MediaBrowser.Model/Net/ISocketFactory.cs
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@ -17,7 +17,7 @@ namespace MediaBrowser.Model.Net
/// <summary>
/// Createa a new unicast socket using the specified local port number.
/// </summary>
IUdpSocket CreateSsdpUdpSocket(int localPort);
IUdpSocket CreateSsdpUdpSocket(IpAddressInfo localIp, int localPort);
/// <summary>
/// Createa a new multicast socket using the specified multicast IP address, multicast time to live and local port.

16
MediaBrowser.Model/Net/IUdpSocket.cs
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@ -10,16 +10,18 @@ namespace MediaBrowser.Model.Net
/// Provides a common interface across platforms for UDP sockets used by this SSDP implementation.
/// </summary>
public interface IUdpSocket : IDisposable
{
/// <summary>
/// Waits for and returns the next UDP message sent to this socket (uni or multicast).
/// </summary>
/// <returns></returns>
Task<SocketReceiveResult> ReceiveAsync();
{
IpAddressInfo LocalIPAddress { get; }
/// <summary>
/// Waits for and returns the next UDP message sent to this socket (uni or multicast).
/// </summary>
/// <returns></returns>
Task<SocketReceiveResult> ReceiveAsync();
/// <summary>
/// Sends a UDP message to a particular end point (uni or multicast).
/// </summary>
Task SendAsync(byte[] buffer, int bytes, IpEndPointInfo endPoint);
}
}
}

3
MediaBrowser.Model/Net/SocketReceiveResult.cs
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@ -20,5 +20,6 @@ namespace MediaBrowser.Model.Net
/// The <see cref="IpEndPointInfo"/> the data was received from.
/// </summary>
public IpEndPointInfo RemoteEndPoint { get; set; }
}
public IpAddressInfo LocalIPAddress { get; set; }
}
}

3
RSSDP/ISsdpCommunicationsServer.cs
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@ -46,7 +46,8 @@ namespace Rssdp.Infrastructure
/// </summary>
/// <param name="messageData">A byte array containing the data to send.</param>
/// <param name="destination">A <see cref="IpEndPointInfo"/> representing the destination address for the data. Can be either a multicast or unicast destination.</param>
Task SendMessage(byte[] messageData, IpEndPointInfo destination);
/// <param name="fromLocalIpAddress">A <see cref="IpEndPointInfo"/> The local ip address to send from, or .Any if sending from all available</param>
Task SendMessage(byte[] messageData, IpEndPointInfo destination, IpAddressInfo fromLocalIpAddress);
/// <summary>
/// Sends a message to the SSDP multicast address and port.

5
RSSDP/RSSDP.csproj
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@ -50,7 +50,6 @@
<Compile Include="ISsdpDevicePublisher.cs" />
<Compile Include="IUPnPDeviceValidator.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="ReadOnlyEnumerable.cs" />
<Compile Include="RequestReceivedEventArgs.cs" />
<Compile Include="ResponseReceivedEventArgs.cs" />
<Compile Include="SsdpCommunicationsServer.cs" />
@ -70,6 +69,10 @@
<Compile Include="UPnP10DeviceValidator.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\MediaBrowser.Common\MediaBrowser.Common.csproj">
<Project>{9142eefa-7570-41e1-bfcc-468bb571af2f}</Project>
<Name>MediaBrowser.Common</Name>
</ProjectReference>
<ProjectReference Include="..\MediaBrowser.Model\MediaBrowser.Model.csproj">
<Project>{7eeeb4bb-f3e8-48fc-b4c5-70f0fff8329b}</Project>
<Name>MediaBrowser.Model</Name>

46
RSSDP/ReadOnlyEnumerable.cs
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@ -1,46 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Rssdp
{
internal sealed class ReadOnlyEnumerable<T> : System.Collections.Generic.IEnumerable<T>
{
#region Fields
private IEnumerable<T> _Items;
#endregion
#region Constructors
public ReadOnlyEnumerable(IEnumerable<T> items)
{
if (items == null) throw new ArgumentNullException("items");
_Items = items;
}
#endregion
#region IEnumerable<T> Members
public IEnumerator<T> GetEnumerator()
{
return _Items.GetEnumerator();
}
#endregion
#region IEnumerable Members
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return _Items.GetEnumerator();
}
#endregion
}
}

9
RSSDP/RequestReceivedEventArgs.cs
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@ -22,17 +22,18 @@ namespace Rssdp.Infrastructure
#endregion
#region Constructors
public IpAddressInfo LocalIpAddress { get; private set; }
#region Constructors
/// <summary>
/// Full constructor.
/// </summary>
/// <param name="message">The <see cref="HttpRequestMessage"/> that was received.</param>
/// <param name="receivedFrom">A <see cref="UdpEndPoint"/> representing the sender's address (sometimes used for replies).</param>
public RequestReceivedEventArgs(HttpRequestMessage message, IpEndPointInfo receivedFrom)
public RequestReceivedEventArgs(HttpRequestMessage message, IpEndPointInfo receivedFrom, IpAddressInfo localIpAddress)
{
_Message = message;
_ReceivedFrom = receivedFrom;
LocalIpAddress = localIpAddress;
}
#endregion

175
RSSDP/SsdpCommunicationsServer.cs
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@ -5,6 +5,8 @@ using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
namespace Rssdp.Infrastructure
@ -38,12 +40,13 @@ namespace Rssdp.Infrastructure
private IUdpSocket _BroadcastListenSocket;
private object _SendSocketSynchroniser = new object();
private IUdpSocket _SendSocket;
private List<IUdpSocket> _sendSockets;
private HttpRequestParser _RequestParser;
private HttpResponseParser _ResponseParser;
private readonly ILogger _logger;
private ISocketFactory _SocketFactory;
private readonly INetworkManager _networkManager;
private int _LocalPort;
private int _MulticastTtl;
@ -71,22 +74,18 @@ namespace Rssdp.Infrastructure
/// <summary>
/// Minimum constructor.
/// </summary>
/// <param name="socketFactory">An implementation of the <see cref="ISocketFactory"/> interface that can be used to make new unicast and multicast sockets. Cannot be null.</param>
/// <exception cref="System.ArgumentNullException">The <paramref name="socketFactory"/> argument is null.</exception>
public SsdpCommunicationsServer(ISocketFactory socketFactory)
: this(socketFactory, 0, SsdpConstants.SsdpDefaultMulticastTimeToLive)
public SsdpCommunicationsServer(ISocketFactory socketFactory, INetworkManager networkManager, ILogger logger)
: this(socketFactory, 0, SsdpConstants.SsdpDefaultMulticastTimeToLive, networkManager, logger)
{
}
/// <summary>
/// Full constructor.
/// </summary>
/// <param name="socketFactory">An implementation of the <see cref="ISocketFactory"/> interface that can be used to make new unicast and multicast sockets. Cannot be null.</param>
/// <param name="localPort">The specific local port to use for all sockets created by this instance. Specify zero to indicate the system should choose a free port itself.</param>
/// <param name="multicastTimeToLive">The multicast time to live value for multicast sockets. Technically this is a number of router hops, not a 'Time'. Must be greater than zero.</param>
/// <exception cref="System.ArgumentNullException">The <paramref name="socketFactory"/> argument is null.</exception>
/// <exception cref="System.ArgumentOutOfRangeException">The <paramref name="multicastTimeToLive"/> argument is less than or equal to zero.</exception>
public SsdpCommunicationsServer(ISocketFactory socketFactory, int localPort, int multicastTimeToLive)
public SsdpCommunicationsServer(ISocketFactory socketFactory, int localPort, int multicastTimeToLive, INetworkManager networkManager, ILogger logger)
{
if (socketFactory == null) throw new ArgumentNullException("socketFactory");
if (multicastTimeToLive <= 0) throw new ArgumentOutOfRangeException("multicastTimeToLive", "multicastTimeToLive must be greater than zero.");
@ -101,6 +100,8 @@ namespace Rssdp.Infrastructure
_ResponseParser = new HttpResponseParser();
_MulticastTtl = multicastTimeToLive;
_networkManager = networkManager;
_logger = logger;
}
#endregion
@ -148,25 +149,72 @@ namespace Rssdp.Infrastructure
/// </summary>
/// <param name="messageData">A byte array containing the data to send.</param>
/// <param name="destination">A <see cref="IpEndPointInfo"/> representing the destination address for the data. Can be either a multicast or unicast destination.</param>
/// <param name="fromLocalIpAddress">A <see cref="IpEndPointInfo"/> The local ip address to send from, or .Any if sending from all available</param>
/// <exception cref="System.ArgumentNullException">Thrown if the <paramref name="messageData"/> argument is null.</exception>
/// <exception cref="System.ObjectDisposedException">Thrown if the <see cref="DisposableManagedObjectBase.IsDisposed"/> property is true (because <seealso cref="DisposableManagedObjectBase.Dispose()" /> has been called previously).</exception>
public async Task SendMessage(byte[] messageData, IpEndPointInfo destination)
public async Task SendMessage(byte[] messageData, IpEndPointInfo destination, IpAddressInfo fromLocalIpAddress)
{
if (messageData == null) throw new ArgumentNullException("messageData");
ThrowIfDisposed();
EnsureSendSocketCreated();
var sockets = GetSendSockets(fromLocalIpAddress, destination);
if (sockets.Count == 0)
{
return;
}
// SSDP spec recommends sending messages multiple times (not more than 3) to account for possible packet loss over UDP.
for (var i = 0; i < SsdpConstants.UdpResendCount; i++)
{
await SendMessageIfSocketNotDisposed(messageData, destination).ConfigureAwait(false);
var tasks = sockets.Select(s => SendFromSocket(s, messageData, destination)).ToArray();
await Task.WhenAll(tasks).ConfigureAwait(false);
await Task.Delay(100).ConfigureAwait(false);
}
}
private async Task SendFromSocket(IUdpSocket socket, byte[] messageData, IpEndPointInfo destination)
{
try
{
await socket.SendAsync(messageData, messageData.Length, destination).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error sending socket message from {0} to {1}", ex, socket.LocalIPAddress.ToString(), destination.ToString());
}
}
private List<IUdpSocket> GetSendSockets(IpAddressInfo fromLocalIpAddress, IpEndPointInfo destination)
{
EnsureSendSocketCreated();
lock (_SendSocketSynchroniser)
{
var sockets = _sendSockets.Where(i => i.LocalIPAddress.AddressFamily == fromLocalIpAddress.AddressFamily);
// Send from the Any socket and the socket with the matching address
if (fromLocalIpAddress.AddressFamily == IpAddressFamily.InterNetwork)
{
sockets = sockets.Where(i => i.LocalIPAddress.Equals(IpAddressInfo.Any) || fromLocalIpAddress.Equals(i.LocalIPAddress));
}
else if (fromLocalIpAddress.AddressFamily == IpAddressFamily.InterNetworkV6)
{
sockets = sockets.Where(i => i.LocalIPAddress.Equals(IpAddressInfo.IPv6Any) || fromLocalIpAddress.Equals(i.LocalIPAddress));
}
// If sending to the loopback address, filter the socket list as well
if (destination.IpAddress.Equals(IpAddressInfo.Loopback))
{
sockets = sockets.Where(i => i.LocalIPAddress.Equals(IpAddressInfo.Any) || i.LocalIPAddress.Equals(IpAddressInfo.Loopback));
}
return sockets.ToList();
}
}
/// <summary>
/// Sends a message to the SSDP multicast address and port.
/// </summary>
@ -185,7 +233,10 @@ namespace Rssdp.Infrastructure
{
await SendMessageIfSocketNotDisposed(messageData, new IpEndPointInfo
{
IpAddress = new IpAddressInfo { Address = SsdpConstants.MulticastLocalAdminAddress },
IpAddress = new IpAddressInfo
{
Address = SsdpConstants.MulticastLocalAdminAddress
},
Port = SsdpConstants.MulticastPort
}).ConfigureAwait(false);
@ -204,10 +255,16 @@ namespace Rssdp.Infrastructure
lock (_SendSocketSynchroniser)
{
var socket = _SendSocket;
_SendSocket = null;
if (socket != null)
socket.Dispose();
if (_sendSockets != null)
{
var sockets = _sendSockets.ToList();
_sendSockets = null;
foreach (var socket in sockets)
{
socket.Dispose();
}
}
}
}
@ -247,8 +304,16 @@ namespace Rssdp.Infrastructure
lock (_SendSocketSynchroniser)
{
if (_SendSocket != null)
_SendSocket.Dispose();
if (_sendSockets != null)
{
var sockets = _sendSockets.ToList();
_sendSockets = null;
foreach (var socket in sockets)
{
socket.Dispose();
}
}
}
}
}
@ -257,16 +322,20 @@ namespace Rssdp.Infrastructure
#region Private Methods
private Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination)
private async Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination)
{
var socket = _SendSocket;
if (socket != null)
var sockets = _sendSockets;
if (sockets != null)
{
return _SendSocket.SendAsync(messageData, messageData.Length, destination);
sockets = sockets.ToList();
foreach (var socket in sockets)
{
await socket.SendAsync(messageData, messageData.Length, destination).ConfigureAwait(false);
}
}
ThrowIfDisposed();
return Task.FromResult(true);
}
private IUdpSocket ListenForBroadcastsAsync()
@ -278,13 +347,30 @@ namespace Rssdp.Infrastructure
return socket;
}
private IUdpSocket CreateSocketAndListenForResponsesAsync()
private List<IUdpSocket> CreateSocketAndListenForResponsesAsync()
{
_SendSocket = _SocketFactory.CreateSsdpUdpSocket(_LocalPort);
var sockets = new List<IUdpSocket>();
ListenToSocket(_SendSocket);
sockets.Add(_SocketFactory.CreateSsdpUdpSocket(IpAddressInfo.Any, _LocalPort));
return _SendSocket;
foreach (var address in _networkManager.GetLocalIpAddresses().ToList())
{
try
{
sockets.Add(_SocketFactory.CreateSsdpUdpSocket(address, _LocalPort));
}
catch (Exception ex)
{
_logger.ErrorException("Error in CreateSsdpUdpSocket. IPAddress: {0}", ex, address);
}
}
foreach (var socket in sockets)
{
ListenToSocket(socket);
}
return sockets;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1804:RemoveUnusedLocals", MessageId = "t", Justification = "Capturing task to local variable removes compiler warning, task is not otherwise required.")]
@ -305,7 +391,7 @@ namespace Rssdp.Infrastructure
// Strange cannot convert compiler error here if I don't explicitly
// assign or cast to Action first. Assignment is easier to read,
// so went with that.
ProcessMessage(System.Text.UTF8Encoding.UTF8.GetString(result.Buffer, 0, result.ReceivedBytes), result.RemoteEndPoint);
ProcessMessage(System.Text.UTF8Encoding.UTF8.GetString(result.Buffer, 0, result.ReceivedBytes), result.RemoteEndPoint, result.LocalIPAddress);
}
}
catch (ObjectDisposedException)
@ -322,19 +408,19 @@ namespace Rssdp.Infrastructure
private void EnsureSendSocketCreated()
{
if (_SendSocket == null)
if (_sendSockets == null)
{
lock (_SendSocketSynchroniser)
{
if (_SendSocket == null)
if (_sendSockets == null)
{
_SendSocket = CreateSocketAndListenForResponsesAsync();
_sendSockets = CreateSocketAndListenForResponsesAsync();
}
}
}
}
private void ProcessMessage(string data, IpEndPointInfo endPoint)
private void ProcessMessage(string data, IpEndPointInfo endPoint, IpAddressInfo receivedOnLocalIpAddress)
{
//Responses start with the HTTP version, prefixed with HTTP/ while
//requests start with a method which can vary and might be one we haven't
@ -347,7 +433,10 @@ namespace Rssdp.Infrastructure
{
responseMessage = _ResponseParser.Parse(data);
}
catch (ArgumentException) { } // Ignore invalid packets.
catch (ArgumentException ex)
{
// Ignore invalid packets.
}
if (responseMessage != null)
OnResponseReceived(responseMessage, endPoint);
@ -359,23 +448,31 @@ namespace Rssdp.Infrastructure
{
requestMessage = _RequestParser.Parse(data);
}
catch (ArgumentException) { } // Ignore invalid packets.
catch (ArgumentException ex)
{
// Ignore invalid packets.
}
if (requestMessage != null)
OnRequestReceived(requestMessage, endPoint);
{
OnRequestReceived(requestMessage, endPoint, receivedOnLocalIpAddress);
}
}
}
private void OnRequestReceived(HttpRequestMessage data, IpEndPointInfo endPoint)
private void OnRequestReceived(HttpRequestMessage data, IpEndPointInfo remoteEndPoint, IpAddressInfo receivedOnLocalIpAddress)
{
//SSDP specification says only * is currently used but other uri's might
//be implemented in the future and should be ignored unless understood.
//Section 4.2 - http://tools.ietf.org/html/draft-cai-ssdp-v1-03#page-11
if (data.RequestUri.ToString() != "*") return;
if (data.RequestUri.ToString() != "*")
{
return;
}
var handlers = this.RequestReceived;
if (handlers != null)
handlers(this, new RequestReceivedEventArgs(data, endPoint));
handlers(this, new RequestReceivedEventArgs(data, remoteEndPoint, receivedOnLocalIpAddress));
}
private void OnResponseReceived(HttpResponseMessage data, IpEndPointInfo endPoint)

2
RSSDP/SsdpDevice.cs
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@ -64,7 +64,7 @@ namespace Rssdp
this.Icons = new List<SsdpDeviceIcon>();
_Devices = new List<SsdpDevice>();
this.Devices = new ReadOnlyEnumerable<SsdpDevice>(_Devices);
this.Devices = new ReadOnlyCollection<SsdpDevice>(_Devices);
_CustomResponseHeaders = new CustomHttpHeadersCollection();
_CustomProperties = new SsdpDevicePropertiesCollection();
}

31
RSSDP/SsdpDevicePublisherBase.cs
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@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Net.Http;
using System.Text;
@ -25,7 +26,7 @@ namespace Rssdp.Infrastructure
private bool _SupportPnpRootDevice;
private IList<SsdpRootDevice> _Devices;
private ReadOnlyEnumerable<SsdpRootDevice> _ReadOnlyDevices;
private IReadOnlyList<SsdpRootDevice> _ReadOnlyDevices;
private ITimer _RebroadcastAliveNotificationsTimer;
private ITimerFactory _timerFactory;
@ -62,7 +63,7 @@ namespace Rssdp.Infrastructure
_SupportPnpRootDevice = true;
_timerFactory = timerFactory;
_Devices = new List<SsdpRootDevice>();
_ReadOnlyDevices = new ReadOnlyEnumerable<SsdpRootDevice>(_Devices);
_ReadOnlyDevices = new ReadOnlyCollection<SsdpRootDevice>(_Devices);
_RecentSearchRequests = new Dictionary<string, SearchRequest>(StringComparer.OrdinalIgnoreCase);
_Random = new Random();
_DeviceValidator = new Upnp10DeviceValidator(); //Should probably inject this later, but for now we only support 1.0.
@ -236,17 +237,17 @@ namespace Rssdp.Infrastructure
#region Search Related Methods
private void ProcessSearchRequest(string mx, string searchTarget, IpEndPointInfo endPoint)
private void ProcessSearchRequest(string mx, string searchTarget, IpEndPointInfo remoteEndPoint, IpAddressInfo receivedOnlocalIpAddress)
{
if (String.IsNullOrEmpty(searchTarget))
{
WriteTrace(String.Format("Invalid search request received From {0}, Target is null/empty.", endPoint.ToString()));
WriteTrace(String.Format("Invalid search request received From {0}, Target is null/empty.", remoteEndPoint.ToString()));
return;
}
WriteTrace(String.Format("Search Request Received From {0}, Target = {1}", endPoint.ToString(), searchTarget));
WriteTrace(String.Format("Search Request Received From {0}, Target = {1}", remoteEndPoint.ToString(), searchTarget));
if (IsDuplicateSearchRequest(searchTarget, endPoint))
if (IsDuplicateSearchRequest(searchTarget, remoteEndPoint))
{
WriteTrace("Search Request is Duplicate, ignoring.");
return;
@ -294,7 +295,7 @@ namespace Rssdp.Infrastructure
foreach (var device in deviceList)
{
SendDeviceSearchResponses(device, endPoint);
SendDeviceSearchResponses(device, remoteEndPoint, receivedOnlocalIpAddress);
}
}
else
@ -307,19 +308,19 @@ namespace Rssdp.Infrastructure
return _Devices.Union(_Devices.SelectManyRecursive<SsdpDevice>((d) => d.Devices));
}
private void SendDeviceSearchResponses(SsdpDevice device, IpEndPointInfo endPoint)
private void SendDeviceSearchResponses(SsdpDevice device, IpEndPointInfo endPoint, IpAddressInfo receivedOnlocalIpAddress)
{
bool isRootDevice = (device as SsdpRootDevice) != null;
if (isRootDevice)
{
SendSearchResponse(SsdpConstants.UpnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.UpnpDeviceTypeRootDevice), endPoint);
SendSearchResponse(SsdpConstants.UpnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.UpnpDeviceTypeRootDevice), endPoint, receivedOnlocalIpAddress);
if (this.SupportPnpRootDevice)
SendSearchResponse(SsdpConstants.PnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.PnpDeviceTypeRootDevice), endPoint);
SendSearchResponse(SsdpConstants.PnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.PnpDeviceTypeRootDevice), endPoint, receivedOnlocalIpAddress);
}
SendSearchResponse(device.Udn, device, device.Udn, endPoint);
SendSearchResponse(device.Udn, device, device.Udn, endPoint, receivedOnlocalIpAddress);
SendSearchResponse(device.FullDeviceType, device, GetUsn(device.Udn, device.FullDeviceType), endPoint);
SendSearchResponse(device.FullDeviceType, device, GetUsn(device.Udn, device.FullDeviceType), endPoint, receivedOnlocalIpAddress);
}
private static string GetUsn(string udn, string fullDeviceType)
@ -327,7 +328,7 @@ namespace Rssdp.Infrastructure
return String.Format("{0}::{1}", udn, fullDeviceType);
}
private async void SendSearchResponse(string searchTarget, SsdpDevice device, string uniqueServiceName, IpEndPointInfo endPoint)
private async void SendSearchResponse(string searchTarget, SsdpDevice device, string uniqueServiceName, IpEndPointInfo endPoint, IpAddressInfo receivedOnlocalIpAddress)
{
var rootDevice = device.ToRootDevice();
@ -349,7 +350,7 @@ namespace Rssdp.Infrastructure
try
{
await _CommsServer.SendMessage(System.Text.Encoding.UTF8.GetBytes(message), endPoint).ConfigureAwait(false);
await _CommsServer.SendMessage(System.Text.Encoding.UTF8.GetBytes(message), endPoint, receivedOnlocalIpAddress).ConfigureAwait(false);
}
catch (Exception ex)
{
@ -674,7 +675,7 @@ namespace Rssdp.Infrastructure
//else if (!e.Message.Headers.Contains("MAN"))
// WriteTrace("Ignoring search request - missing MAN header.");
//else
ProcessSearchRequest(GetFirstHeaderValue(e.Message.Headers, "MX"), GetFirstHeaderValue(e.Message.Headers, "ST"), e.ReceivedFrom);
ProcessSearchRequest(GetFirstHeaderValue(e.Message.Headers, "MX"), GetFirstHeaderValue(e.Message.Headers, "ST"), e.ReceivedFrom, e.LocalIpAddress);
}
}

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