public AudioChannel()
{
// Set up the device that will play the audio from the RTP received from the remote end of the call.
m_waveOut = new WaveOut();
m_waveProvider = new BufferedWaveProvider(_waveFormat);
m_waveOut.Init(m_waveProvider);
m_waveOut.Play();
// Set up the input device that will provide audio samples that can be encoded, packaged into RTP and sent to
// the remote end of the call.
m_waveInEvent = new WaveInEvent();
m_waveInEvent.BufferMilliseconds = 20;
m_waveInEvent.NumberOfBuffers = 1;
m_waveInEvent.DeviceNumber = 0;
m_waveInEvent.DataAvailable += RTPChannelSampleAvailable;
m_waveInEvent.WaveFormat = _waveFormat;
// Create a UDP socket to use for sending and receiving RTP packets.
int port = FreePort.FindNextAvailableUDPPort(DEFAULT_START_RTP_PORT);
_rtpEndPoint = new IPEndPoint(_defaultLocalAddress, port);
m_rtpChannel = new RTPChannel(_rtpEndPoint);
m_rtpChannel.OnFrameReady += RTPChannelSampleReceived;
_audioLogger.Debug("RTP channel endpoint " + _rtpEndPoint.ToString());
}
/// <summary>
/// Initialises the SIP transport layer.
/// </summary>
private void InitialiseSIP()
{
// Configure the SIP transport layer.
m_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
if (m_sipSocketsNode != null)
{
// Set up the SIP channels based on the app.config file.
List <SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(m_sipSocketsNode);
m_sipTransport.AddSIPChannel(sipChannels);
}
else
{
// Use default options to set up a SIP channel.
int port = FreePort.FindNextAvailableUDPPort(_defaultSIPUdpPort);
var sipChannel = new SIPUDPChannel(new IPEndPoint(_defaultLocalAddress, port));
m_sipTransport.AddSIPChannel(sipChannel);
}
// Wire up the transport layer so incoming SIP requests have somewhere to go.
m_sipTransport.SIPTransportRequestReceived += SIPTransportRequestReceived;
// Log all SIP packets received to a log file.
m_sipTransport.SIPRequestInTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Received : " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPRequestOutTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPResponseInTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Received: " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipResponse.ToString()); };
m_sipTransport.SIPResponseOutTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipResponse.ToString()); };
}
static void Main(string[] args)
{
try
{
// Configure the SIP transport layer.
_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
// Use default options to set up a SIP channel.
var localIP = LocalIPConfig.GetDefaultIPv4Address(); // Set this manually if needed.
int port = FreePort.FindNextAvailableUDPPort(_defaultSIPUdpPort);
var sipChannel = new SIPUDPChannel(new IPEndPoint(localIP, port));
_sipTransport.AddSIPChannel(sipChannel);
SIPCallDescriptor callDescriptor = new SIPCallDescriptor("test", null, "sip:[email protected]", "sip:[email protected]", null, null, null, null, SIPCallDirection.Out, null, null, null);
SIPNonInviteClientUserAgent notifyUac = new SIPNonInviteClientUserAgent(_sipTransport, null, callDescriptor, null, null, (monitorEvent) => { Console.WriteLine("Debug: " + monitorEvent.Message); });
notifyUac.ResponseReceived += (resp) => { Console.WriteLine(resp.ToString()); };
notifyUac.SendRequest(SIPMethodsEnum.NOTIFY);
ManualResetEvent mre = new ManualResetEvent(false);
mre.WaitOne();
}
catch (Exception excp)
{
Console.WriteLine("Exception Main. " + excp);
}
finally
{
Console.WriteLine("Press any key to exit...");
Console.ReadLine();
}
}
public void Init()
{
var port = FreePort.FindNextAvailableUDPPort(15090);
transport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
publicIPAddress = STUNClient.GetPublicIPAddress("stun.ekiga.net");
localIPEndPoint = IpAddressLookup.QueryRoutingInterface(asterisk, port);
var endpoint = new IPEndPoint(localIPEndPoint.Address, port);
var channel = new SIPUDPChannel(endpoint);
transport.AddSIPChannel(channel);
transport.SIPTransportRequestReceived += Transport_SIPTransportRequestReceived;
//var registration = new SIPRegistrationUserAgent(
// transport,
// null,
// new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port),
// new SIPURI("1003", asterisk, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
// "1003",
// passwords[0],
// null,
// asterisk,
// new SIPURI(SIPSchemesEnum.sip, new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port)),
// 180,
// null,
// null,
// (e) => { logger.Debug($"{ prefix } SIPRegistrationUserAgent; { e.Message }"); }
// );
//registration.RegistrationSuccessful += Registration_RegistrationSuccessful;
//registration.RegistrationFailed += Registration_RegistrationFailed;
//registration.Start();
}
public void Start(string endpoint)
{
this.endpoint = endpoint;
var caller = "1003";
var password = passwords[0];
var port = FreePort.FindNextAvailableUDPPort(15090);
rtpChannel = new RTPChannel
{
DontTimeout = true,
RemoteEndPoint = new IPEndPoint(IPAddress.Parse(asterisk), port)
};
rtpChannel.SetFrameType(FrameTypesEnum.Audio);
rtpChannel.ReservePorts(15000, 15090);
rtpChannel.OnFrameReady += RtpChannel_OnFrameReady;
uac = new SIPClientUserAgent(transport, null, null, null, null);
var uri = SIPURI.ParseSIPURIRelaxed($"{ endpoint }@{ asterisk }");
var from = (new SIPFromHeader(caller, new SIPURI(caller, asterisk, null), null)).ToString();
var random = Crypto.GetRandomInt(5).ToString();
var sdp = new SDP
{
Version = 2,
Username = "******",
SessionId = random,
Address = localIPEndPoint.Address.ToString(),
SessionName = "redfox_" + random,
Timing = "0 0",
Connection = new SDPConnectionInformation(publicIPAddress.ToString())
};
var announcement = new SDPMediaAnnouncement
{
Media = SDPMediaTypesEnum.audio,
MediaFormats = new List <SDPMediaFormat>()
{
new SDPMediaFormat((int)SDPMediaFormatsEnum.PCMU, "PCMU", 8000)
},
Port = rtpChannel.RTPPort
};
sdp.Media.Add(announcement);
var descriptor = new SIPCallDescriptor(caller, password, uri.ToString(), from, null, null, null, null, SIPCallDirection.Out, SDP.SDP_MIME_CONTENTTYPE, sdp.ToString(), null);
uac.CallTrying += Uac_CallTrying;
uac.CallRinging += Uac_CallRinging;
uac.CallAnswered += Uac_CallAnswered;
uac.CallFailed += Uac_CallFailed;
uac.Call(descriptor);
}
/// <summary>
/// Initialises the SIP transport layer.
/// </summary>
public async Task InitialiseSIP()
{
if (_isIntialised == false)
{
await Task.Run(() =>
{
_isIntialised = true;
if (String.IsNullOrEmpty(m_DnsServer) == false)
{
// Use a custom DNS server.
m_DnsServer = m_DnsServer.Contains(":") ? m_DnsServer : m_DnsServer + ":53";
DNSManager.SetDNSServers(new List <IPEndPoint> {
IPSocket.ParseSocketString(m_DnsServer)
});
}
// Configure the SIP transport layer.
m_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
bool sipChannelAdded = false;
if (m_sipSocketsNode != null)
{
// Set up the SIP channels based on the app.config file.
List <SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(m_sipSocketsNode);
if (sipChannels?.Count > 0)
{
m_sipTransport.AddSIPChannel(sipChannels);
sipChannelAdded = true;
}
}
if (sipChannelAdded == false)
{
// Use default options to set up a SIP channel.
int port = FreePort.FindNextAvailableUDPPort(_defaultSIPUdpPort);
var sipChannel = new SIPUDPChannel(new IPEndPoint(_defaultLocalAddress, port));
m_sipTransport.AddSIPChannel(sipChannel);
}
});
// Wire up the transport layer so incoming SIP requests have somewhere to go.
m_sipTransport.SIPTransportRequestReceived += SIPTransportRequestReceived;
// Log all SIP packets received to a log file.
m_sipTransport.SIPRequestInTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Received : " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPRequestOutTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPResponseInTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Received: " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipResponse.ToString()); };
m_sipTransport.SIPResponseOutTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipResponse.ToString()); };
}
}
public void Run()
{
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
var port = FreePort.FindNextAvailableTcpPort(20000);
var endPoint = new IPEndPoint(IPAddress.Any, port);
server.Bind(endPoint);
server.Listen(port);
var accept = new SocketAsyncEventArgs();
accept.Completed += Accept_Completed;
accept.RemoteEndPoint = endPoint;
accept.UserToken = server;
server.AcceptAsync(accept);
}
private static Dictionary <string, SIPRegistrarBinding> _sipRegistrations = new Dictionary <string, SIPRegistrarBinding>(); // [SIP Username, Contact Address], tracks SIP clients that have registered with the server.
static void Main(string[] args)
{
try
{
// Configure the SIP transport layer.
_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
if (_sipSocketsNode != null)
{
// Set up the SIP channels based on the app.config file.
List <SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(_sipSocketsNode);
_sipTransport.AddSIPChannel(sipChannels);
}
else
{
// Use default options to set up a SIP channel.
int port = FreePort.FindNextAvailableUDPPort(_defaultSIPUdpPort);
var sipChannel = new SIPUDPChannel(new IPEndPoint(_defaultLocalAddress, port));
_sipTransport.AddSIPChannel(sipChannel);
}
// Wire up the transport layer so SIP requests and responses have somewhere to go.
_sipTransport.SIPTransportRequestReceived += SIPTransportRequestReceived;
_sipTransport.SIPTransportResponseReceived += SIPTransportResponseReceived;
// If you want to see ALL the nitty gritty SIP traffic wire up the events below.
//_sipTransport.SIPBadRequestInTraceEvent += SIPBadRequestInTraceEvent;
//_sipTransport.SIPBadResponseInTraceEvent += SIPBadResponseInTraceEvent;
//_sipTransport.SIPRequestInTraceEvent += SIPRequestInTraceEvent;
//_sipTransport.SIPRequestOutTraceEvent += SIPRequestOutTraceEvent;
//_sipTransport.SIPResponseInTraceEvent += SIPResponseInTraceEvent;
//_sipTransport.SIPResponseOutTraceEvent += SIPResponseOutTraceEvent;
ManualResetEvent mre = new ManualResetEvent(false);
mre.WaitOne();
}
catch (Exception excp)
{
Console.WriteLine("Exception Main. " + excp);
}
finally
{
Console.WriteLine("Press any key to exit...");
Console.ReadLine();
}
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// If your default DNS server supports SRV records there is no need to set a specific DNS server.
DNSManager.SetDNSServers(new List <IPEndPoint> {
IPEndPoint.Parse("8.8.8.8:53")
});
// Set up a default SIP transport.
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT);
var sipChannel = new SIPUDPChannel(new IPEndPoint(LocalIPConfig.GetDefaultIPv4Address(), port));
sipTransport.AddSIPChannel(sipChannel);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"softphonesample",
"password",
"sipsorcery.com");
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => SIPSorcery.Sys.Log.Logger.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) => SIPSorcery.Sys.Log.Logger.LogInformation($"{uri.ToString()} registration succeeded.");
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
}
public void Init()
{
var port = FreePort.FindNextAvailableUDPPort(15090);
transport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
publicIPAddress = STUNClient.GetPublicIPAddress("stun.ekiga.net");
localIPEndPoint = IpAddressLookup.QueryRoutingInterface(asterisk, port);
var endpoint = new IPEndPoint(localIPEndPoint.Address, port);
var channel = new SIPUDPChannel(endpoint);
//channel.SIPMessageReceived += (SIPChannel sipChannel, SIPEndPoint remoteEndPoint, byte[] buffer) => { logger.Debug("Channel SIP message received " + channel.SIPChannelEndPoint + "<-" + remoteEndPoint); };
transport.AddSIPChannel(channel);
for (var i = 0; i < numbers.Length; i++)
{
var number = numbers[i];
var password = passwords[i];
var registration = new SIPRegistrationUserAgent(
transport,
null,
new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port),
new SIPURI(number, asterisk, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
number,
password,
null,
asterisk,
new SIPURI(SIPSchemesEnum.sip, new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port)),
180,
null,
null,
(e) => { logger.Debug(e.Message); }
);
logger.Debug($"{prefix} Registration attempt for {number}@{endpoint.Address}:{endpoint.Port}");
registration.RegistrationSuccessful += Registration_RegistrationSuccessful;
registration.RegistrationFailed += Registration_RegistrationFailed;
registration.Start();
registrations.Add(registration);
}
}
public void Start(Action After)
{
if (State)
{
After?.Invoke();
return;
}
Task.Run(() => {
ServerEnvironment.Instance.Port = FreePort.FindNextAvailableTCPPort(ServerEnvironment.Instance.Port);
var line = $@"{ServerEnvironment.Instance.Path}{ServerEnvironment.Instance.WebName}.dll --urls=http://*:{ServerEnvironment.Instance.Port}";
var psi = SetProcessInfo(line);
Process = Process.Start(psi);
After?.Invoke();
Process.OutputDataReceived += new DataReceivedEventHandler(Instance.OnDataReceived);
Process.BeginOutputReadLine();
Process.WaitForExit();
if (Process.ExitCode != 0)
{
logger.Info(Process.StandardError.ReadToEnd());
}
Process.Close();
Process = null;
});
}
private const int SUCCESS_REGISTRATION_COUNT = 3; // Number of successful registrations to attempt before exiting process.
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// Set up a default SIP transport.
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT);
var sipChannel = new SIPUDPChannel(new IPEndPoint(LocalIPConfig.GetDefaultIPv4Address(), port));
sipTransport.AddSIPChannel(sipChannel);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"softphonesample",
"password",
"sipsorcery.com",
120);
int successCounter = 0;
ManualResetEvent taskCompleteMre = new ManualResetEvent(false);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => SIPSorcery.Sys.Log.Logger.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) =>
{
SIPSorcery.Sys.Log.Logger.LogInformation($"{uri.ToString()} registration succeeded.");
Interlocked.Increment(ref successCounter);
SIPSorcery.Sys.Log.Logger.LogInformation($"Successful registrations {successCounter} of {SUCCESS_REGISTRATION_COUNT}.");
if (successCounter == SUCCESS_REGISTRATION_COUNT)
{
taskCompleteMre.Set();
}
};
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
taskCompleteMre.Set();
};
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
taskCompleteMre.WaitOne();
regUserAgent.Stop();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
SIPSorcery.Net.DNSManager.Stop();
}
private static readonly int RTP_REPORTING_PERIOD_SECONDS = 5; // Period at which to write RTP stats.
static void Main()
{
Console.WriteLine("SIPSorcery client user agent server example.");
Console.WriteLine("Press ctrl-c to exit.");
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// Set up a default SIP transport.
IPAddress defaultAddr = LocalIPConfig.GetDefaultIPv4Address();
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT);
var sipChannel = new SIPUDPChannel(new IPEndPoint(defaultAddr, port));
sipTransport.AddSIPChannel(sipChannel);
// To keep things a bit simpler this example only supports a single call at a time and the SIP server user agent
// acts as a singleton
SIPServerUserAgent uas = null;
CancellationTokenSource uasCts = null;
// Because this is a server user agent the SIP transport must start listening for client user agents.
sipTransport.SIPTransportRequestReceived += (SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest) =>
{
if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Incoming call request: " + localSIPEndPoint + "<-" + remoteEndPoint + " " + sipRequest.URI.ToString() + ".");
// If there's already a call in progress hang it up. Of course this is not ideal for a real softphone or server but it
// means this example can be kept a little it simpler.
uas?.Hangup();
UASInviteTransaction uasTransaction = sipTransport.CreateUASTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
uas = new SIPServerUserAgent(sipTransport, null, null, null, SIPCallDirection.In, null, null, null, uasTransaction);
uasCts = new CancellationTokenSource();
uas.Progress(SIPResponseStatusCodesEnum.Trying, null, null, null, null);
uas.Progress(SIPResponseStatusCodesEnum.Ringing, null, null, null, null);
// Initialise an RTP session to receive the RTP packets from the remote SIP server.
Socket rtpSocket = null;
Socket controlSocket = null;
NetServices.CreateRtpSocket(defaultAddr, 49000, 49100, false, out rtpSocket, out controlSocket);
IPEndPoint rtpEndPoint = rtpSocket.LocalEndPoint as IPEndPoint;
IPEndPoint dstRtpEndPoint = SDP.GetSDPRTPEndPoint(sipRequest.Body);
var rtpSession = new RTPSession((int)RTPPayloadTypesEnum.PCMU, null, null);
var rtpTask = Task.Run(() => SendRecvRtp(rtpSocket, rtpSession, dstRtpEndPoint, AUDIO_FILE, uasCts))
.ContinueWith(_ => { if (uas?.IsHungup == false)
{
uas?.Hangup();
}
});
uas.Answer(SDP.SDP_MIME_CONTENTTYPE, GetSDP(rtpEndPoint).ToString(), null, SIPDialogueTransferModesEnum.NotAllowed);
}
else if (sipRequest.Method == SIPMethodsEnum.BYE)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Call hungup.");
SIPNonInviteTransaction byeTransaction = sipTransport.CreateNonInviteTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
SIPResponse byeResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
byeTransaction.SendFinalResponse(byeResponse);
uas?.Hangup();
uasCts?.Cancel();
}
};
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
if (uas?.IsHungup == false)
{
uas?.Hangup();
}
uasCts?.Cancel();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
};
}
private static readonly int RTP_REPORTING_PERIOD_SECONDS = 5; // Period at which to write RTP stats.
static void Main()
{
Console.WriteLine("SIPSorcery client user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Plumbing code to facilitate a graceful exit.
CancellationTokenSource cts = new CancellationTokenSource();
bool isCallHungup = false;
bool hasCallFailed = false;
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// Set up a default SIP transport.
IPAddress defaultAddr = LocalIPConfig.GetDefaultIPv4Address();
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT + 2);
var sipChannel = new SIPUDPChannel(new IPEndPoint(defaultAddr, port));
sipTransport.AddSIPChannel(sipChannel);
// Initialise an RTP session to receive the RTP packets from the remote SIP server.
Socket rtpSocket = null;
Socket controlSocket = null;
NetServices.CreateRtpSocket(defaultAddr, 49000, 49100, false, out rtpSocket, out controlSocket);
var rtpSendSession = new RTPSession((int)RTPPayloadTypesEnum.PCMU, null, null);
// Create a client user agent to place a call to a remote SIP server along with event handlers for the different stages of the call.
var uac = new SIPClientUserAgent(sipTransport);
uac.CallTrying += (uac, resp) => SIPSorcery.Sys.Log.Logger.LogInformation($"{uac.CallDescriptor.To} Trying: {resp.StatusCode} {resp.ReasonPhrase}.");
uac.CallRinging += (uac, resp) => SIPSorcery.Sys.Log.Logger.LogInformation($"{uac.CallDescriptor.To} Ringing: {resp.StatusCode} {resp.ReasonPhrase}.");
uac.CallFailed += (uac, err) =>
{
SIPSorcery.Sys.Log.Logger.LogWarning($"{uac.CallDescriptor.To} Failed: {err}");
hasCallFailed = true;
};
uac.CallAnswered += (uac, resp) =>
{
if (resp.Status == SIPResponseStatusCodesEnum.Ok)
{
SIPSorcery.Sys.Log.Logger.LogInformation($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
IPEndPoint remoteRtpEndPoint = SDP.GetSDPRTPEndPoint(resp.Body);
SIPSorcery.Sys.Log.Logger.LogDebug($"Sending initial RTP packet to remote RTP socket {remoteRtpEndPoint}.");
// Send a dummy packet to open the NAT session on the RTP path.
rtpSendSession.SendAudioFrame(rtpSocket, remoteRtpEndPoint, 0, new byte[] { 0x00 });
}
else
{
SIPSorcery.Sys.Log.Logger.LogWarning($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
}
};
// The only incoming request that needs to be explicitly handled for this example is if the remote end hangs up the call.
sipTransport.SIPTransportRequestReceived += (SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPRequest sipRequest) =>
{
if (sipRequest.Method == SIPMethodsEnum.BYE)
{
SIPNonInviteTransaction byeTransaction = sipTransport.CreateNonInviteTransaction(sipRequest, remoteEndPoint, localSIPEndPoint, null);
SIPResponse byeResponse = SIPTransport.GetResponse(sipRequest, SIPResponseStatusCodesEnum.Ok, null);
byeTransaction.SendFinalResponse(byeResponse);
if (uac.IsUACAnswered)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Call was hungup by remote server.");
isCallHungup = true;
cts.Cancel();
}
}
};
// It's a good idea to start the RTP receiving socket before the call request is sent.
// A SIP server will generally start sending RTP as soon as it has processed the incoming call request and
// being ready to receive will stop any ICMP error response being generated.
Task.Run(() => SendRecvRtp(rtpSocket, rtpSendSession, cts));
// Start the thread that places the call.
SIPCallDescriptor callDescriptor = new SIPCallDescriptor(
SIPConstants.SIP_DEFAULT_USERNAME,
null,
DESTINATION_SIP_URI,
SIPConstants.SIP_DEFAULT_FROMURI,
null, null, null, null,
SIPCallDirection.Out,
SDP.SDP_MIME_CONTENTTYPE,
GetSDP(rtpSocket.LocalEndPoint as IPEndPoint).ToString(),
null);
uac.Call(callDescriptor);
// At this point the call has been initiated and everything will be handled in an event handler or on the RTP
// receive task. The code below is to gracefully exit.
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += async delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
cts.Cancel();
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
rtpSocket?.Close();
controlSocket?.Close();
if (!isCallHungup && uac != null)
{
if (uac.IsUACAnswered)
{
SIPSorcery.Sys.Log.Logger.LogInformation($"Hanging up call to {uac.CallDescriptor.To}.");
uac.Hangup();
}
else if (!hasCallFailed)
{
SIPSorcery.Sys.Log.Logger.LogInformation($"Cancelling call to {uac.CallDescriptor.To}.");
uac.Cancel();
}
// Give the BYE or CANCEL request time to be transmitted.
SIPSorcery.Sys.Log.Logger.LogInformation("Waiting 1s for call to clean up...");
await Task.Delay(1000);
}
SIPSorcery.Net.DNSManager.Stop();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
};
}
///<summary>Processes a received query.</summary>
///<param name="Query">The query to process.</param>
private async Task ProcessQuery(byte[] Query)
{
try
{
Request request = null;
Request.ParseRequest(Query, out request);
switch (request.Command)
{
case Command.Connect: //CONNECT
IPAddress RemoteIP = request.DstAddr;
int RemotePort = 0;
if (Query[3] == 1)
{
RemoteIP = IPAddress.Parse(Query[4].ToString() + "." + Query[5].ToString() + "." + Query[6].ToString() + "." + Query[7].ToString());
RemotePort = Query[8] * 256 + Query[9];
}
else if (Query[3] == 3)
{
if (RemoteIP == null)
{
RemoteIP = Dns.GetHostAddressesAsync(Encoding.ASCII.GetString(Query, 5, Query[4])).Result[0];
}
RemotePort = Query[4] + 5;
RemotePort = Query[RemotePort] * 256 + Query[RemotePort + 1];
}
RemoteConnection = new TcpSocket(RemoteIP.AddressFamily, false);
try
{
await RemoteConnection.ConnectAsync(new IPEndPoint(RemoteIP, RemotePort));
await OnConnected(null);
}
catch (SocketException ex)
{
Console.WriteLine("[WARN] SocketError=" + ex.SocketErrorCode + "\r\n");
await OnConnected(ex);
}
catch (Exception ex)
{
Console.WriteLine("[WARN] " + ex.Message + "\r\n" + ex.StackTrace);
await OnConnected(ex);
}
break;
case Command.Bind: //BIND
byte[] Reply = new byte[10];
long LocalIP = BitConverter.ToInt64(Listener.GetLocalExternalIP().Result.GetAddressBytes(), 0);
AcceptSocket = new TcpSocket(IPAddress.Any.AddressFamily, false);
AcceptSocket.Bind(new IPEndPoint(IPAddress.Any, 0));
AcceptSocket.Listen(50);
Reply[0] = 5; //Version 5
Reply[1] = 0; //Everything is ok :)
Reply[2] = 0; //Reserved
Reply[3] = 1; //We're going to send a IPv4 address
Reply[4] = (byte)((LocalIP % 256)); //IP Address/1
Reply[5] = (byte)((LocalIP % 65536) / 256); //IP Address/2
Reply[6] = (byte)((LocalIP % 16777216) / 65536); //IP Address/3
Reply[7] = (byte)(Math.Floor(LocalIP / 16777216.0)); //IP Address/4
Reply[8] = (byte)(Math.Floor(((IPEndPoint)AcceptSocket.LocalEndPoint).Port / 256.0)); //Port/1
Reply[9] = (byte)(((IPEndPoint)AcceptSocket.LocalEndPoint).Port % 256); //Port/2
await Connection.SendAsync(Reply, async (int x) => { await this.OnStartAccept(); });
break;
case Command.UdpAssociate: //UDP ASSOCIATE
if (request.DstAddr.Equals(IPAddress.Any) && request.DstPort == 0)
{
request.DstPort = FreePort.FindNextAvailableUDPPort(4200);
if (request.DstPort == 0)
{
await Dispose(ReplyCode.SocksFailure);
return;
}
}
if (request.DstAddr.Equals(IPAddress.Any))
{
request.DstAddr = ((IPEndPoint)Connection.LocalEndPoint).Address;
}
UdpClientEndPoint = new IPEndPoint(request.DstAddr, request.DstPort);
LocalBindEndPoint = new IPEndPoint(((IPEndPoint)(Connection.LocalEndPoint)).Address, request.DstPort);
var reply = request.CreateReply(LocalBindEndPoint.Address, LocalBindEndPoint.Port);
await Connection.SendAsync(reply.ToBytes(), async (int x) => { await this.StartUdpReceive(); });
break;
default:
await Dispose(ReplyCode.UnsupportedCommand);
break;
}
}
catch (Exception ex)
{
Console.WriteLine("[WARN] " + ex.Message + "\r\n" + ex.StackTrace);
await Dispose(ReplyCode.SocksFailure);
}
}
