private async Task RespondToV2Message(string messageText, IpEndPointInfo endpoint, Encoding encoding, CancellationToken cancellationToken)
{
var parts = messageText.Split('|');
var localUrl = await _appHost.GetLocalApiUrl(cancellationToken).ConfigureAwait(false);
if (!string.IsNullOrEmpty(localUrl))
{
var response = new ServerDiscoveryInfo
{
Address = localUrl,
Id = _appHost.SystemId,
Name = _appHost.FriendlyName
};
await SendAsync(encoding.GetBytes(_json.SerializeToString(response)), endpoint, cancellationToken).ConfigureAwait(false);
if (parts.Length > 1)
{
_appHost.EnableLoopback(parts[1]);
}
}
else
{
_logger.LogWarning("Unable to respond to udp request because the local ip address could not be determined.");
}
}
private void CreateSocket()
{
try
{
sock = _socketFactory.CreateSocket(endpoint.IpAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp, _enableDualMode);
}
catch (SocketCreateException ex)
{
if (_enableDualMode && endpoint.IpAddress.Equals(IpAddressInfo.IPv6Any) &&
(string.Equals(ex.ErrorCode, "AddressFamilyNotSupported", StringComparison.OrdinalIgnoreCase) ||
// mono on bsd is throwing this
string.Equals(ex.ErrorCode, "ProtocolNotSupported", StringComparison.OrdinalIgnoreCase)))
{
endpoint = new IpEndPointInfo(IpAddressInfo.Any, endpoint.Port);
_enableDualMode = false;
sock = _socketFactory.CreateSocket(endpoint.IpAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp, _enableDualMode);
}
else
{
throw;
}
}
sock.Bind(endpoint);
// This is the number TcpListener uses.
sock.Listen(2147483647);
sock.StartAccept(ProcessAccept, () => _closed);
_closed = false;
}
private List <ISocket> 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));
// 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));
}
}
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.IPv6Loopback))
{
sockets = sockets.Where(i => i.LocalIPAddress.Equals(IpAddressInfo.IPv6Any) || i.LocalIPAddress.Equals(IpAddressInfo.IPv6Loopback));
}
}
return(sockets.ToList());
}
}
/// <summary>
/// Sends a message to a particular address (uni or multicast) and port.
/// </summary>
public async Task SendMessage(byte[] messageData, IpEndPointInfo destination, IpAddressInfo fromLocalIpAddress, CancellationToken cancellationToken)
{
if (messageData == null)
{
throw new ArgumentNullException("messageData");
}
ThrowIfDisposed();
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++)
{
var tasks = sockets.Select(s => SendFromSocket(s, messageData, destination, cancellationToken)).ToArray();
await Task.WhenAll(tasks).ConfigureAwait(false);
await Task.Delay(100, cancellationToken).ConfigureAwait(false);
}
}
public Task SendToAsync(byte[] buffer, int offset, int size, IpEndPointInfo endPoint, CancellationToken cancellationToken)
{
var taskCompletion = new TaskCompletionSource <int>();
Action <IAsyncResult> callback = callbackResult =>
{
try
{
taskCompletion.TrySetResult(EndSendTo(callbackResult));
}
catch (Exception ex)
{
taskCompletion.TrySetException(ex);
}
};
var result = BeginSendTo(buffer, offset, size, endPoint, new AsyncCallback(callback), null);
if (result.CompletedSynchronously)
{
callback(result);
}
cancellationToken.Register(() => taskCompletion.TrySetCanceled());
return(taskCompletion.Task);
}
public async Task SendAsync(byte[] bytes, IpEndPointInfo remoteEndPoint, CancellationToken cancellationToken)
{
if (_isDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
if (remoteEndPoint == null)
{
throw new ArgumentNullException("remoteEndPoint");
}
try
{
await _udpClient.SendToAsync(bytes, 0, bytes.Length, remoteEndPoint, cancellationToken).ConfigureAwait(false);
_logger.Info("Udp message sent to {0}", remoteEndPoint);
}
catch (OperationCanceledException)
{
}
catch (Exception ex)
{
_logger.ErrorException("Error sending message to {0}", ex, remoteEndPoint);
}
}
public IAsyncResult BeginSendTo(byte[] buffer, int offset, int size, IpEndPointInfo endPoint, AsyncCallback callback, object state)
{
ThrowIfDisposed();
var ipEndPoint = NetworkManager.ToIPEndPoint(endPoint);
return(_Socket.BeginSendTo(buffer, offset, size, SocketFlags.None, ipEndPoint, callback, state));
}
public static IPEndPoint ToIPEndPoint(IpEndPointInfo endpoint)
{
if (endpoint == null)
{
return(null);
}
return(new IPEndPoint(ToIPAddress(endpoint.IpAddress), endpoint.Port));
}
private void OnResponseReceived(HttpResponseMessage data, IpEndPointInfo endPoint)
{
var handlers = this.ResponseReceived;
if (handlers != null)
{
handlers(this, new ResponseReceivedEventArgs(data, endPoint));
}
}
public UdpSocket(Socket socket, IpEndPointInfo endPoint)
{
if (socket == null)
{
throw new ArgumentNullException("socket");
}
_Socket = socket;
_Socket.Connect(NetworkManager.ToIPEndPoint(endPoint));
}
public Task SendAsync(byte[] buffer, int size, IpEndPointInfo endPoint)
{
ThrowIfDisposed();
if (buffer == null)
{
throw new ArgumentNullException("messageData");
}
if (endPoint == null)
{
throw new ArgumentNullException("endPoint");
}
var ipEndPoint = NetworkManager.ToIPEndPoint(endPoint);
#if NETSTANDARD1_6
if (size != buffer.Length)
{
byte[] copy = new byte[size];
Buffer.BlockCopy(buffer, 0, copy, 0, size);
buffer = copy;
}
_Socket.SendTo(buffer, ipEndPoint);
return(Task.FromResult(true));
#else
var taskSource = new TaskCompletionSource <bool>();
try
{
_Socket.BeginSendTo(buffer, 0, size, SocketFlags.None, ipEndPoint, result =>
{
try
{
_Socket.EndSend(result);
taskSource.TrySetResult(true);
}
catch (Exception ex)
{
taskSource.TrySetException(ex);
}
}, null);
}
catch (Exception ex)
{
taskSource.TrySetException(ex);
}
//_Socket.SendTo(messageData, new System.Net.IPEndPoint(IPAddress.Parse(RemoteEndPoint.IPAddress), RemoteEndPoint.Port));
return(taskSource.Task);
#endif
}
public UdpSocket(Socket socket, IpEndPointInfo endPoint)
{
if (socket == null)
{
throw new ArgumentNullException(nameof(socket));
}
_Socket = socket;
_Socket.Connect(NetworkManager.ToIPEndPoint(endPoint));
InitReceiveSocketAsyncEventArgs();
}
private void SendDeviceSearchResponses(SsdpDevice device, IpEndPointInfo endPoint, IpAddressInfo receivedOnlocalIpAddress, CancellationToken cancellationToken)
{
bool isRootDevice = (device as SsdpRootDevice) != null;
if (isRootDevice)
{
SendSearchResponse(SsdpConstants.UpnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.UpnpDeviceTypeRootDevice), endPoint, receivedOnlocalIpAddress, cancellationToken);
}
SendSearchResponse(device.Udn, device, device.Udn, endPoint, receivedOnlocalIpAddress, cancellationToken);
SendSearchResponse(device.FullDeviceType, device, GetUsn(device.Udn, device.FullDeviceType), endPoint, receivedOnlocalIpAddress, cancellationToken);
}
private static async Task <bool> CheckTunerAvailability(ISocket socket, IpAddressInfo remoteIp, int tuner, CancellationToken cancellationToken)
{
var ipEndPoint = new IpEndPointInfo(remoteIp, HdHomeRunPort);
var lockkeyMsg = CreateGetMessage(tuner, "lockkey");
await socket.SendToAsync(lockkeyMsg, 0, lockkeyMsg.Length, ipEndPoint, cancellationToken);
var receiveBuffer = new byte[8192];
var response = await socket.ReceiveAsync(receiveBuffer, 0, receiveBuffer.Length, cancellationToken).ConfigureAwait(false);
ParseReturnMessage(response.Buffer, response.ReceivedBytes, out string returnVal);
return(string.Equals(returnVal, "none", StringComparison.OrdinalIgnoreCase));
}
private Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination, CancellationToken cancellationToken)
{
var sockets = _sendSockets;
if (sockets != null)
{
sockets = sockets.ToList();
var tasks = sockets.Select(s => SendFromSocket(s, messageData, destination, cancellationToken));
return(Task.WhenAll(tasks));
}
return(Task.CompletedTask);
}
private async Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination, CancellationToken cancellationToken)
{
var sockets = _sendSockets;
if (sockets != null)
{
sockets = sockets.ToList();
foreach (var socket in sockets)
{
await SendFromSocket(socket, messageData, destination, cancellationToken).ConfigureAwait(false);
}
}
}
private async Task SendFromSocket(IUdpSocket socket, byte[] messageData, IpEndPointInfo destination)
{
try
{
await socket.SendAsync(messageData, messageData.Length, destination).ConfigureAwait(false);
}
catch (ObjectDisposedException)
{
}
catch (Exception ex)
{
_logger.ErrorException("Error sending socket message from {0} to {1}", ex, socket.LocalIPAddress.ToString(), destination.ToString());
}
}
private Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination, IpAddressInfo fromLocalIpAddress, CancellationToken cancellationToken)
{
var sockets = _sendSockets;
if (sockets != null)
{
sockets = sockets.ToList();
var tasks = sockets.Where(s => (fromLocalIpAddress == null || fromLocalIpAddress.Equals(s.LocalIPAddress)))
.Select(s => SendFromSocket(s, messageData, destination, cancellationToken));
return(Task.WhenAll(tasks));
}
return(Task.CompletedTask);
}
public async Task SendWithLockAsync(byte[] buffer, int size, IpEndPointInfo endPoint, CancellationToken cancellationToken)
{
ThrowIfDisposed();
//await _sendLock.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
await SendAsync(buffer, size, endPoint, cancellationToken).ConfigureAwait(false);
}
finally
{
//_sendLock.Release();
}
}
private async Task SendMessageIfSocketNotDisposed(byte[] messageData, IpEndPointInfo destination)
{
var sockets = _sendSockets;
if (sockets != null)
{
sockets = sockets.ToList();
foreach (var socket in sockets)
{
await socket.SendAsync(messageData, messageData.Length, destination).ConfigureAwait(false);
}
}
ThrowIfDisposed();
}
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, receivedOnlocalIpAddress);
if (this.SupportPnpRootDevice)
{
SendSearchResponse(SsdpConstants.PnpDeviceTypeRootDevice, device, GetUsn(device.Udn, SsdpConstants.PnpDeviceTypeRootDevice), endPoint, receivedOnlocalIpAddress);
}
}
SendSearchResponse(device.Udn, device, device.Udn, endPoint, receivedOnlocalIpAddress);
SendSearchResponse(device.FullDeviceType, device, GetUsn(device.Udn, device.FullDeviceType), endPoint, receivedOnlocalIpAddress);
}
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;
}
var handlers = this.RequestReceived;
if (handlers != null)
{
handlers(this, new RequestReceivedEventArgs(data, remoteEndPoint, receivedOnLocalIpAddress));
}
}
private async Task SendFromSocket(ISocket socket, byte[] messageData, IpEndPointInfo destination, CancellationToken cancellationToken)
{
try
{
await socket.SendToAsync(messageData, 0, messageData.Length, destination, cancellationToken).ConfigureAwait(false);
}
catch (ObjectDisposedException)
{
}
catch (OperationCanceledException)
{
}
catch (Exception ex)
{
_logger.LogError(ex, "Error sending socket message from {0} to {1}", socket.LocalIPAddress.ToString(), destination.ToString());
}
}
public static void RemoveEndPoint(EndPointListener epl, IpEndPointInfo ep)
{
lock (ip_to_endpoints)
{
// Dictionary<int, EndPointListener> p
Dictionary <int, EndPointListener> p;
if (ip_to_endpoints.TryGetValue(ep.IpAddress.Address, out p))
{
p.Remove(ep.Port);
if (p.Count == 0)
{
ip_to_endpoints.Remove(ep.IpAddress.Address);
}
}
epl.Close();
}
}
private async Task ReleaseLockkey(ISocket tcpClient, uint lockKeyValue)
{
_logger.Info("HdHomerunManager.ReleaseLockkey {0}", lockKeyValue);
var ipEndPoint = new IpEndPointInfo(_remoteIp, HdHomeRunPort);
var releaseTarget = CreateSetMessage(_activeTuner, "target", "none", lockKeyValue);
await tcpClient.SendToAsync(releaseTarget, 0, releaseTarget.Length, ipEndPoint, CancellationToken.None).ConfigureAwait(false);
var receiveBuffer = new byte[8192];
await tcpClient.ReceiveAsync(receiveBuffer, 0, receiveBuffer.Length, CancellationToken.None).ConfigureAwait(false);
var releaseKeyMsg = CreateSetMessage(_activeTuner, "lockkey", "none", lockKeyValue);
_lockkey = null;
await tcpClient.SendToAsync(releaseKeyMsg, 0, releaseKeyMsg.Length, ipEndPoint, CancellationToken.None).ConfigureAwait(false);
await tcpClient.ReceiveAsync(receiveBuffer, 0, receiveBuffer.Length, CancellationToken.None).ConfigureAwait(false);
}
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
//seen/don't know. We'll check if this message is a request or a response
//by checking for the HTTP/ prefix on the start of the message.
if (data.StartsWith("HTTP/", StringComparison.OrdinalIgnoreCase))
{
HttpResponseMessage responseMessage = null;
try
{
responseMessage = _ResponseParser.Parse(data);
}
catch (ArgumentException)
{
// Ignore invalid packets.
}
if (responseMessage != null)
{
OnResponseReceived(responseMessage, endPoint, receivedOnLocalIpAddress);
}
}
else
{
HttpRequestMessage requestMessage = null;
try
{
requestMessage = _RequestParser.Parse(data);
}
catch (ArgumentException)
{
// Ignore invalid packets.
}
if (requestMessage != null)
{
OnRequestReceived(requestMessage, endPoint, receivedOnLocalIpAddress);
}
}
}
public EndPointListener(HttpListener listener, IpAddressInfo addr, int port, bool secure, ICertificate cert, ILogger logger, ICryptoProvider cryptoProvider, IStreamFactory streamFactory, ISocketFactory socketFactory, IMemoryStreamFactory memoryStreamFactory, ITextEncoding textEncoding)
{
this.listener = listener;
_logger = logger;
_cryptoProvider = cryptoProvider;
_streamFactory = streamFactory;
_socketFactory = socketFactory;
_memoryStreamFactory = memoryStreamFactory;
_textEncoding = textEncoding;
this.secure = secure;
this.cert = cert;
_enableDualMode = addr.Equals(IpAddressInfo.IPv6Any);
endpoint = new IpEndPointInfo(addr, port);
prefixes = new Dictionary <ListenerPrefix, HttpListener>();
unregistered = new Dictionary <HttpConnection, HttpConnection>();
CreateSocket();
}
private async void SendSearchResponse(string searchTarget, SsdpDevice device, string uniqueServiceName, IpEndPointInfo endPoint, IpAddressInfo receivedOnlocalIpAddress)
{
var rootDevice = device.ToRootDevice();
//var additionalheaders = FormatCustomHeadersForResponse(device);
const string header = "HTTP/1.1 200 OK";
var values = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
values["EXT"] = "";
values["DATE"] = DateTime.UtcNow.ToString("r");
values["CACHE-CONTROL"] = "max-age = 600";
values["ST"] = searchTarget;
values["SERVER"] = string.Format("{0}/{1} UPnP/1.0 RSSDP/{2}", _OSName, _OSVersion, ServerVersion);
values["USN"] = uniqueServiceName;
values["LOCATION"] = rootDevice.Location.ToString();
var message = SsdpHelper.BuildMessage(header, values);
try
{
await _CommsServer.SendMessage(System.Text.Encoding.UTF8.GetBytes(message), endPoint, receivedOnlocalIpAddress).ConfigureAwait(false);
}
catch (Exception ex)
{
}
//WriteTrace(String.Format("Sent search response to " + endPoint.ToString()), device);
}
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.", remoteEndPoint.ToString()));
return;
}
//WriteTrace(String.Format("Search Request Received From {0}, Target = {1}", remoteEndPoint.ToString(), searchTarget));
if (IsDuplicateSearchRequest(searchTarget, remoteEndPoint))
{
//WriteTrace("Search Request is Duplicate, ignoring.");
return;
}
//Wait on random interval up to MX, as per SSDP spec.
//Also, as per UPnP 1.1/SSDP spec ignore missing/bank MX header. If over 120, assume random value between 0 and 120.
//Using 16 as minimum as that's often the minimum system clock frequency anyway.
int maxWaitInterval = 0;
if (String.IsNullOrEmpty(mx))
{
//Windows Explorer is poorly behaved and doesn't supply an MX header value.
//if (this.SupportPnpRootDevice)
mx = "1";
//else
//return;
}
if (!Int32.TryParse(mx, out maxWaitInterval) || maxWaitInterval <= 0)
{
return;
}
if (maxWaitInterval > 120)
{
maxWaitInterval = _Random.Next(0, 120);
}
//Do not block synchronously as that may tie up a threadpool thread for several seconds.
Task.Delay(_Random.Next(16, (maxWaitInterval * 1000))).ContinueWith((parentTask) =>
{
//Copying devices to local array here to avoid threading issues/enumerator exceptions.
IEnumerable <SsdpDevice> devices = null;
lock (_Devices)
{
if (String.Compare(SsdpConstants.SsdpDiscoverAllSTHeader, searchTarget, StringComparison.OrdinalIgnoreCase) == 0)
{
devices = GetAllDevicesAsFlatEnumerable().ToArray();
}
else if (String.Compare(SsdpConstants.UpnpDeviceTypeRootDevice, searchTarget, StringComparison.OrdinalIgnoreCase) == 0 || (this.SupportPnpRootDevice && String.Compare(SsdpConstants.PnpDeviceTypeRootDevice, searchTarget, StringComparison.OrdinalIgnoreCase) == 0))
{
devices = _Devices.ToArray();
}
else if (searchTarget.Trim().StartsWith("uuid:", StringComparison.OrdinalIgnoreCase))
{
devices = (from device in GetAllDevicesAsFlatEnumerable() where String.Compare(device.Uuid, searchTarget.Substring(5), StringComparison.OrdinalIgnoreCase) == 0 select device).ToArray();
}
else if (searchTarget.StartsWith("urn:", StringComparison.OrdinalIgnoreCase))
{
devices = (from device in GetAllDevicesAsFlatEnumerable() where String.Compare(device.FullDeviceType, searchTarget, StringComparison.OrdinalIgnoreCase) == 0 select device).ToArray();
}
}
if (devices != null)
{
var deviceList = devices.ToList();
//WriteTrace(String.Format("Sending {0} search responses", deviceList.Count));
foreach (var device in deviceList)
{
SendDeviceSearchResponses(device, remoteEndPoint, receivedOnlocalIpAddress);
}
}
else
{
//WriteTrace(String.Format("Sending 0 search responses."));
}
});
}
/// <summary>
/// Full constructor.
/// </summary>
public ResponseReceivedEventArgs(HttpResponseMessage message, IpEndPointInfo receivedFrom)
{
_Message = message;
_ReceivedFrom = receivedFrom;
}
