/// <summary>
/// This constructor is used by server user agents or SIP elements acting in a server user agent role. When
/// acting as a server user agent the local fields are contained in the To header and the remote fields are
/// in the From header.
/// </summary>
public SIPDialogue(UASInviteTransaction uasInviteTransaction)
{
Id = Guid.NewGuid();
CallId = uasInviteTransaction.TransactionRequest.Header.CallId;
//RouteSet = (uasInviteTransaction.TransactionFinalResponse != null && uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes != null) ? uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes.Reversed() : null;
RouteSet = (uasInviteTransaction.TransactionFinalResponse != null && uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes != null) ? uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes : null;
LocalUserField = uasInviteTransaction.TransactionFinalResponse.Header.To.ToUserField;
LocalTag = uasInviteTransaction.TransactionFinalResponse.Header.To.ToTag;
RemoteUserField = uasInviteTransaction.TransactionFinalResponse.Header.From.FromUserField;
RemoteTag = uasInviteTransaction.TransactionFinalResponse.Header.From.FromTag;
CSeq = uasInviteTransaction.TransactionRequest.Header.CSeq;
CDRId = uasInviteTransaction.CDR != null ? uasInviteTransaction.CDR.CDRId : Guid.Empty;
ContentType = uasInviteTransaction.TransactionFinalResponse.Header.ContentType;
SDP = uasInviteTransaction.TransactionFinalResponse.Body;
RemoteSDP = uasInviteTransaction.TransactionRequest.Body ?? uasInviteTransaction.AckRequest.Body;
Inserted = DateTime.UtcNow;
Direction = SIPCallDirection.In;
if (uasInviteTransaction.m_gotPrack)
{
CSeq++;
}
var inviteReq = uasInviteTransaction.TransactionRequest;
// Set the dialogue remote target taking into account optional Proxy header fields.
// No mangling takes place. All the information is recorded to allow an application to perform mangling
// if so required.
SIPEndPoint remoteEndPointViaProxy = SIPEndPoint.ParseSIPEndPoint(inviteReq.Header.ProxyReceivedFrom);
RemoteSIPEndPoint = remoteEndPointViaProxy ?? inviteReq.RemoteSIPEndPoint.CopyOf();
ProxySendFrom = inviteReq.Header.ProxyReceivedOn;
if (inviteReq.Header.Contact != null && inviteReq.Header.Contact.Count > 0)
{
RemoteTarget = inviteReq.Header.Contact[0].ContactURI.CopyOf();
}
else
{
RemoteTarget = new SIPURI(inviteReq.URI.Scheme, inviteReq.RemoteSIPEndPoint);
}
//if (uasInviteTransaction.TransactionRequest.Header.Contact != null && uasInviteTransaction.TransactionRequest.Header.Contact.Count > 0)
//{
// RemoteTarget = uasInviteTransaction.TransactionRequest.Header.Contact[0].ContactURI.CopyOf();
// if (!uasInviteTransaction.TransactionRequest.Header.ProxyReceivedFrom.IsNullOrBlank())
// {
// // Setting the Proxy-ReceivedOn header is how an upstream proxy will let an agent know it should mangle the contact.
// // Don't mangle private contacts if there is a Record-Route header. If a proxy is putting private IP's in a Record-Route header that's its problem.
// if (RouteSet == null && IPSocket.IsPrivateAddress(RemoteTarget.HostAddress))
// {
// SIPEndPoint remoteUASSIPEndPoint = SIPEndPoint.ParseSIPEndPoint(uasInviteTransaction.TransactionRequest.Header.ProxyReceivedFrom);
// RemoteTarget.Host = remoteUASSIPEndPoint.GetIPEndPoint().ToString();
// }
// }
//}
}
internal SIPCancelTransaction(SIPTransport sipTransport, SIPRequest sipRequest, SIPEndPoint dstEndPoint, SIPEndPoint localSIPEndPoint, UASInviteTransaction originalTransaction)
: base(sipTransport, sipRequest, dstEndPoint, localSIPEndPoint, originalTransaction.OutboundProxy)
{
m_originalTransaction = originalTransaction;
TransactionType = SIPTransactionTypesEnum.NonInvite;
TransactionRequestReceived += SIPCancelTransaction_TransactionRequestReceived;
TransactionFinalResponseReceived += SIPCancelTransaction_TransactionFinalResponseReceived;
TransactionRemoved += SIPCancelTransaction_TransactionRemoved;
}
internal SIPCancelTransaction(SIPTransport sipTransport, SIPRequest sipRequest, SIPEndPoint dstEndPoint, SIPEndPoint localSIPEndPoint, UASInviteTransaction originalTransaction)
: base(sipTransport, sipRequest, dstEndPoint, localSIPEndPoint, originalTransaction.OutboundProxy)
{
m_originalTransaction = originalTransaction;
TransactionType = SIPTransactionTypesEnum.NonInvite;
TransactionRequestReceived += SIPCancelTransaction_TransactionRequestReceived;
TransactionFinalResponseReceived += SIPCancelTransaction_TransactionFinalResponseReceived;
TransactionRemoved += SIPCancelTransaction_TransactionRemoved;
}
public void AckRecognitionUnitTest()
{
SIPTransport clientTransport = null;
SIPTransport serverTransport = null;
try
{
SIPTransactionEngine clientEngine = new SIPTransactionEngine(); // Client side of the INVITE.
SIPEndPoint clientEndPoint = new SIPEndPoint(SIPProtocolsEnum.udp, new IPEndPoint(IPAddress.Loopback, 12013));
clientTransport = new SIPTransport(MockSIPDNSManager.Resolve, clientEngine, new SIPUDPChannel(clientEndPoint.GetIPEndPoint()), false);
SetTransportTraceEvents(clientTransport);
SIPTransactionEngine serverEngine = new SIPTransactionEngine(); // Server side of the INVITE.
UASInviteTransaction serverTransaction = null;
SIPEndPoint serverEndPoint = new SIPEndPoint(new IPEndPoint(IPAddress.Loopback, 12014));
serverTransport = new SIPTransport(MockSIPDNSManager.Resolve, serverEngine, new SIPUDPChannel(serverEndPoint.GetIPEndPoint()), false);
SetTransportTraceEvents(serverTransport);
serverTransport.SIPTransportRequestReceived += (localEndPoint, remoteEndPoint, sipRequest) =>
{
Console.WriteLine("Server Transport Request In: " + sipRequest.Method + ".");
serverTransaction = serverTransport.CreateUASTransaction(sipRequest, remoteEndPoint, localEndPoint, null);
SetTransactionTraceEvents(serverTransaction);
serverTransaction.GotRequest(localEndPoint, remoteEndPoint, sipRequest);
};
SIPURI dummyURI = SIPURI.ParseSIPURI("sip:dummy@" + serverEndPoint);
SIPRequest inviteRequest = GetDummyINVITERequest(dummyURI);
inviteRequest.LocalSIPEndPoint = clientTransport.GetDefaultTransportContact(SIPProtocolsEnum.udp);
// Send the invite to the server side.
UACInviteTransaction clientTransaction = new UACInviteTransaction(clientTransport, inviteRequest, serverEndPoint, clientEndPoint, null);
SetTransactionTraceEvents(clientTransaction);
clientEngine.AddTransaction(clientTransaction);
clientTransaction.SendInviteRequest(serverEndPoint, inviteRequest);
Thread.Sleep(500);
Assert.IsTrue(clientTransaction.TransactionState == SIPTransactionStatesEnum.Completed, "Client transaction in incorrect state.");
Assert.IsTrue(serverTransaction.TransactionState == SIPTransactionStatesEnum.Confirmed, "Server transaction in incorrect state.");
}
finally
{
if (clientTransport != null)
{
clientTransport.Shutdown();
}
if (serverTransport != null)
{
serverTransport.Shutdown();
}
}
}
/// <summary>
/// This constructor is used by server user agents or SIP elements acting in a server user agent role. When
/// acting as a server user agent the local fields are contained in the To header and the remote fields are
/// in the From header.
/// </summary>
public SIPDialogue(
UASInviteTransaction uasInviteTransaction)
{
Id = Guid.NewGuid();
CallId = uasInviteTransaction.TransactionRequest.Header.CallId;
//RouteSet = (uasInviteTransaction.TransactionFinalResponse != null && uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes != null) ? uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes.Reversed() : null;
RouteSet = (uasInviteTransaction.TransactionFinalResponse != null &&
uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes != null)
? uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes
: null;
LocalUserField = uasInviteTransaction.TransactionFinalResponse.Header.To.ToUserField;
LocalTag = uasInviteTransaction.TransactionFinalResponse.Header.To.ToTag;
RemoteUserField = uasInviteTransaction.TransactionFinalResponse.Header.From.FromUserField;
RemoteTag = uasInviteTransaction.TransactionFinalResponse.Header.From.FromTag;
CSeq = uasInviteTransaction.TransactionRequest.Header.CSeq;
CDRId = uasInviteTransaction.CDR != null ? uasInviteTransaction.CDR.CDRId : Guid.Empty;
ContentType = uasInviteTransaction.TransactionFinalResponse.Header.ContentType;
SDP = uasInviteTransaction.TransactionFinalResponse.Body;
RemoteSDP = uasInviteTransaction.TransactionRequest.Body ?? uasInviteTransaction.AckRequest.Body;
Inserted = DateTimeOffset.UtcNow;
Direction = SIPCallDirection.In;
if (uasInviteTransaction.m_gotPrack)
{
CSeq++;
}
RemoteTarget = new SIPURI(uasInviteTransaction.TransactionRequest.URI.Scheme,
uasInviteTransaction.TransactionRequest.RemoteSIPEndPoint.CopyOf());
ProxySendFrom = uasInviteTransaction.TransactionRequest.Header.ProxyReceivedOn;
if (uasInviteTransaction.TransactionRequest.Header.Contact != null &&
uasInviteTransaction.TransactionRequest.Header.Contact.Count > 0)
{
RemoteTarget = uasInviteTransaction.TransactionRequest.Header.Contact[0].ContactURI.CopyOf();
if (!uasInviteTransaction.TransactionRequest.Header.ProxyReceivedFrom.IsNullOrBlank())
{
// Setting the Proxy-ReceivedOn header is how an upstream proxy will let an agent know it should mangle the contact.
// Don't mangle private contacts if there is a Record-Route header. If a proxy is putting private IP's in a Record-Route header that's its problem.
if (RouteSet == null && IPSocket.IsPrivateAddress(RemoteTarget.Host))
{
SIPEndPoint remoteUASSIPEndPoint =
SIPEndPoint.ParseSIPEndPoint(uasInviteTransaction.TransactionRequest.Header
.ProxyReceivedFrom);
RemoteTarget.Host = remoteUASSIPEndPoint.GetIPEndPoint().ToString();
}
}
}
}
public void AckRecognitionIIUnitTest()
{
SIPTransactionEngine engine = new SIPTransactionEngine(); // Client side of the INVITE.
string inviteRequestStr =
"INVITE sip:[email protected] SIP/2.0" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;rport;branch=z9hG4bKFBB7EAC06934405182D13950BD51F001" + m_CRLF +
"From: SER Test X <sip:[email protected]:5065>;tag=196468136" + m_CRLF +
"To: <sip:[email protected]>" + m_CRLF +
"Contact: <sip:[email protected]:5065>" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 49429 INVITE" + m_CRLF +
"Max-Forwards: 70" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"User-Agent: Dummy" + m_CRLF +
m_CRLF;
SIPRequest inviteRequest = SIPRequest.ParseSIPRequest(inviteRequestStr);
// Server has received the invite.
SIPEndPoint dummySIPEndPoint = new SIPEndPoint(new IPEndPoint(IPAddress.Loopback, 1234));
UASInviteTransaction serverTransaction = new UASInviteTransaction(new SIPTransport(MockSIPDNSManager.Resolve, null), inviteRequest, dummySIPEndPoint, dummySIPEndPoint, null);
engine.AddTransaction(serverTransaction);
//SIPResponse errorResponse = SIPTransport.GetResponse(inviteRequest.Header, SIPResponseStatusCodesEnum.Decline, "Unit Test", null, null);
string ackRequestStr =
"ACK sip:[email protected] SIP/2.0" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;rport;branch=z9hG4bKFBB7EAC06934405182D13950BD51F001" + m_CRLF +
"From: SER Test X <sip:[email protected]:5065>;tag=196468136" + m_CRLF +
"To: <sip:[email protected]>" + m_CRLF +
"Contact: <sip:[email protected]:5065>" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 49429 ACK" + m_CRLF +
"Max-Forwards: 70" + m_CRLF +
"User-Agent: Dummy" + m_CRLF +
m_CRLF;
SIPRequest ackRequest = SIPRequest.ParseSIPRequest(ackRequestStr);
SIPTransaction matchingTransaction = engine.GetTransaction(ackRequest);
Assert.IsTrue(matchingTransaction.TransactionId == serverTransaction.TransactionId, "ACK transaction did not match INVITE transaction.");
}
public SIPServerUserAgent(
SIPTransport sipTransport,
SIPEndPoint outboundProxy,
string sipUsername,
string sipDomain,
SIPCallDirection callDirection,
SIPAssetGetDelegate<SIPAccount> getSIPAccount,
SIPAuthenticateRequestDelegate sipAuthenticateRequest,
SIPMonitorLogDelegate logDelegate,
UASInviteTransaction uasTransaction)
{
m_sipTransport = sipTransport;
m_outboundProxy = outboundProxy;
m_sipUsername = sipUsername;
m_sipDomain = sipDomain;
m_sipCallDirection = callDirection;
GetSIPAccount_External = getSIPAccount;
SIPAuthenticateRequest_External = sipAuthenticateRequest;
Log_External = logDelegate ?? Log_External;
m_uasTransaction = uasTransaction;
m_uasTransaction.TransactionTraceMessage += TransactionTraceMessage;
m_uasTransaction.UASInviteTransactionTimedOut += ClientTimedOut;
m_uasTransaction.UASInviteTransactionCancelled += UASTransactionCancelled;
m_uasTransaction.TransactionRemoved += new SIPTransactionRemovedDelegate(UASTransaction_TransactionRemoved);
//m_uasTransaction.TransactionStateChanged += (t) => { logger.Debug("Transaction state change to " + t.TransactionState + ", uri=" + t.TransactionRequestURI.ToString() + "."); };
}
public UASInviteTransaction CreateUASTransaction(SIPRequest sipRequest, SIPEndPoint dstEndPoint, SIPEndPoint localSIPEndPoint, SIPEndPoint outboundProxy, bool noCDR = false)
{
try
{
if (localSIPEndPoint == null)
{
localSIPEndPoint = GetDefaultSIPEndPoint();
}
CheckTransactionEngineExists();
UASInviteTransaction uasInviteTransaction = new UASInviteTransaction(this, sipRequest, dstEndPoint, localSIPEndPoint, outboundProxy, ContactIPAddress, noCDR);
m_transactionEngine.AddTransaction(uasInviteTransaction);
return uasInviteTransaction;
}
catch (Exception excp)
{
logger.Error("Exception CreateUASTransaction. " + excp);
throw;
}
}
public SIPCancelTransaction CreateCancelTransaction(SIPRequest sipRequest, SIPEndPoint dstEndPoint, SIPEndPoint localSIPEndPoint, UASInviteTransaction inviteTransaction)
{
try
{
if (localSIPEndPoint == null)
{
localSIPEndPoint = GetDefaultSIPEndPoint();
}
CheckTransactionEngineExists();
SIPCancelTransaction cancelTransaction = new SIPCancelTransaction(this, sipRequest, dstEndPoint, localSIPEndPoint, inviteTransaction);
m_transactionEngine.AddTransaction(cancelTransaction);
return cancelTransaction;
}
catch (Exception excp)
{
logger.Error("Exception CreateUASTransaction. " + excp);
throw;
}
}
private RTSPAppStruct m_rtspAppStruct; // Describes the RTSP server leg of the call from the sipswitch.
#endregion Fields
#region Constructors
public RTSPApp(
SIPMonitorLogDelegate statefulProxyLogEvent,
UASInviteTransaction clientTransaction,
string username)
{
m_statefulProxyLogEvent = statefulProxyLogEvent;
m_clientTransaction = clientTransaction;
//m_clientTransaction.TransactionCancelled += new SIPTransactionCancelledDelegate(CallCancelled);
m_clientUsername = username;
logger.Debug(m_clientTransaction.TransactionRequest.Body);
m_rtpPort = Convert.ToInt32(Regex.Match(m_clientTransaction.TransactionRequest.Body, @"m=audio (?<port>\d+)", RegexOptions.Singleline).Result("${port}"));
logger.Debug("RTP port=" + m_rtpPort);
}
public void AckRecognitionIIUnitTest()
{
SIPTransactionEngine engine = new SIPTransactionEngine(); // Client side of the INVITE.
string inviteRequestStr =
"INVITE sip:[email protected] SIP/2.0" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;rport;branch=z9hG4bKFBB7EAC06934405182D13950BD51F001" + m_CRLF +
"From: SER Test X <sip:[email protected]:5065>;tag=196468136" + m_CRLF +
"To: <sip:[email protected]>" + m_CRLF +
"Contact: <sip:[email protected]:5065>" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 49429 INVITE" + m_CRLF +
"Max-Forwards: 70" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"User-Agent: Dummy" + m_CRLF +
m_CRLF;
SIPRequest inviteRequest = SIPRequest.ParseSIPRequest(inviteRequestStr);
// Server has received the invite.
SIPEndPoint dummySIPEndPoint = new SIPEndPoint(new IPEndPoint(IPAddress.Loopback, 1234));
UASInviteTransaction serverTransaction = new UASInviteTransaction(new SIPTransport(MockSIPDNSManager.Resolve, null), inviteRequest, dummySIPEndPoint, dummySIPEndPoint, null);
engine.AddTransaction(serverTransaction);
//SIPResponse errorResponse = SIPTransport.GetResponse(inviteRequest.Header, SIPResponseStatusCodesEnum.Decline, "Unit Test", null, null);
string ackRequestStr =
"ACK sip:[email protected] SIP/2.0" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;rport;branch=z9hG4bKFBB7EAC06934405182D13950BD51F001" + m_CRLF +
"From: SER Test X <sip:[email protected]:5065>;tag=196468136" + m_CRLF +
"To: <sip:[email protected]>" + m_CRLF +
"Contact: <sip:[email protected]:5065>" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 49429 ACK" + m_CRLF +
"Max-Forwards: 70" + m_CRLF +
"User-Agent: Dummy" + m_CRLF +
m_CRLF;
SIPRequest ackRequest = SIPRequest.ParseSIPRequest(ackRequestStr);
SIPTransaction matchingTransaction = engine.GetTransaction(ackRequest);
Assert.IsTrue(matchingTransaction.TransactionId == serverTransaction.TransactionId, "ACK transaction did not match INVITE transaction.");
}
/// <summary>
/// This constructor is used by server user agents or SIP elements acting in a server user agent role. When
/// acting as a server user agent the local fields are contained in the To header and the remote fields are
/// in the From header.
/// </summary>
public SIPDialogue(
UASInviteTransaction uasInviteTransaction,
string owner,
string adminMemberId)
{
Id = Guid.NewGuid();
CallId = uasInviteTransaction.TransactionRequest.Header.CallId;
RouteSet = (uasInviteTransaction.TransactionFinalResponse != null && uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes != null) ? uasInviteTransaction.TransactionFinalResponse.Header.RecordRoutes.Reversed() : null;
LocalUserField = uasInviteTransaction.TransactionFinalResponse.Header.To.ToUserField;
LocalTag = uasInviteTransaction.TransactionFinalResponse.Header.To.ToTag;
RemoteUserField = uasInviteTransaction.TransactionFinalResponse.Header.From.FromUserField;
RemoteTag = uasInviteTransaction.TransactionFinalResponse.Header.From.FromTag;
CSeq = uasInviteTransaction.TransactionRequest.Header.CSeq;
CDRId = uasInviteTransaction.CDR.CDRId;
Owner = owner;
AdminMemberId = adminMemberId;
ContentType = uasInviteTransaction.TransactionFinalResponse.Header.ContentType;
SDP = uasInviteTransaction.TransactionFinalResponse.Body;
RemoteSDP = uasInviteTransaction.TransactionRequest.Body;
Inserted = DateTimeOffset.UtcNow;
Direction = SIPCallDirection.In;
//DialogueId = GetDialogueId(CallId, LocalTag, RemoteTag);
RemoteTarget = new SIPURI(uasInviteTransaction.TransactionRequest.URI.Scheme, SIPEndPoint.ParseSIPEndPoint(uasInviteTransaction.RemoteEndPoint.ToString()));
ProxySendFrom = uasInviteTransaction.TransactionRequest.Header.ProxyReceivedOn;
if (uasInviteTransaction.TransactionRequest.Header.Contact != null && uasInviteTransaction.TransactionRequest.Header.Contact.Count > 0)
{
RemoteTarget = uasInviteTransaction.TransactionRequest.Header.Contact[0].ContactURI.CopyOf();
if (!uasInviteTransaction.TransactionRequest.Header.ProxyReceivedFrom.IsNullOrBlank())
{
// Setting the Proxy-ReceivedOn header is how an upstream proxy will let an agent know it should mangle the contact.
// Don't mangle private contacts if there is a Record-Route header. If a proxy is putting private IP's in a Record-Route header that's its problem.
if (RouteSet == null && IPSocket.IsPrivateAddress(RemoteTarget.Host))
{
SIPEndPoint remoteUASSIPEndPoint = SIPEndPoint.ParseSIPEndPoint(uasInviteTransaction.TransactionRequest.Header.ProxyReceivedFrom);
RemoteTarget.Host = remoteUASSIPEndPoint.GetIPEndPoint().ToString();
}
}
}
}