public void ParseMissingCSeqOptionsResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"To: <sip:[email protected]:5060>;tag=eba877fbb8dd284bi0" + m_CRLF +
"From: <sip:213.168.225.133:5060>;tag=5880003940" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.133:5060;branch=z9hG4bK1702000048" + m_CRLF +
"Server: Linksys/RT31P2-2.0.10(LIc)" + m_CRLF +
"Content-Length: 0" + m_CRLF +
"Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER" + m_CRLF +
"Supported: x-sipura" + m_CRLF + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse optionsResp = SIPResponse.ParseSIPResponse(sipMessage);
Console.WriteLine("CSeq=" + optionsResp.Header.CSeq + ".");
Console.WriteLine("CSeq Method=" + optionsResp.Header.CSeqMethod + ".");
Assert.IsTrue(optionsResp.Header.CSeq == -1, "Response CSeq was incorrect.");
Assert.IsTrue(optionsResp.Header.CSeqMethod == SIPMethodsEnum.NONE, "Response CSeq method was incorrect.");
Console.WriteLine("-----------------------------------------");
}
public void ParseOptionsBodyResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg = "SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.133:5060;branch=z9hG4bK10a1fab0" + m_CRLF +
"From: \"Unknown\" <sip:[email protected]>;tag=as18338373" + m_CRLF +
"To: <sip:[email protected]>;tag=OLg-20481" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 102 OPTIONS" + m_CRLF +
"content-type: application/sdp" + m_CRLF +
"Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, REFER, NOTIFY" + m_CRLF +
"Content-Length: 217" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=0 5972727 56415 IN IP4 0.0.0.0" + m_CRLF +
"s=SIP Call" + m_CRLF +
"c=IN IP4 0.0.0.0" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 0 RTP/AVP 18 0 8 4 2" + m_CRLF +
"a=rtpmap:18 G729/8000" + m_CRLF +
"a=rtpmap:0 pcmu/8000" + m_CRLF +
"a=rtpmap:8 pcma/8000" + m_CRLF +
"a=rtpmap:4 g723/8000" + m_CRLF +
"a=rtpmap:2 g726/8000" + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(okResp.Status == SIPResponseStatusCodesEnum.Ok, "The SIP response status was not parsed correctly.");
Assert.IsTrue(okResp.Body.Length == 217, "The SIP response body length was not correct.");
Console.WriteLine("-----------------------------------------");
}
public void ParseMultipleContactsResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.32:64226;branch=z9hG4bK-d87543-ac7a6a75bc519655-1--d87543-;rport=64226;received=89.100.104.191" + m_CRLF +
"To: \"253989\"<sip:[email protected]>;tag=cb2000b247d89723001a836145f3b053.5b6c" + m_CRLF +
"From: \"253989\"<sip:[email protected]>;tag=9812dd2f" + m_CRLF +
"Call-ID: ODllYWY1NDJiNGMwYmQ1MjVmZmViMmEyMDViMGM0Y2Y." + m_CRLF +
"CSeq: 2 REGISTER" + m_CRLF +
"Date: Fri, 17 Nov 2006 17:15:35 GMT" + m_CRLF +
"Contact: <sip:[email protected]>;q=0.1;expires=3298, \"Joe Bloggs\"<sip:[email protected]:64226;rinstance=5720c5fed8cbcd34>;q=0.1;expires=3600" + m_CRLF +
"Content-Length: 0" + m_CRLF + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Console.WriteLine("To: " + okResp.Header.To.ToString());
Assert.AreEqual(SIPResponseStatusCodesEnum.Ok, okResp.Status, "Response should have been ok.");
Assert.AreEqual(okResp.Header.Contact.Count, 2, "Response should have had two contacts.");
Assert.AreEqual(okResp.Header.Contact[0].ContactURI.ToString(), "sip:[email protected]", "The contact URI for the first contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[0].Expires, 3298, "The expires value for the first contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[0].Q, "0.1", "The q value for the first contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[1].ContactName, "Joe Bloggs", "The contact name for the first contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[1].ContactURI.ToString(), "sip:[email protected]:64226;rinstance=5720c5fed8cbcd34", "The contact URI for the first contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[1].Expires, 3600, "The expires value for the second contact header was incorrect.");
Assert.AreEqual(okResp.Header.Contact[1].Q, "0.1", "The q value for the second contact header was incorrect.");
Console.WriteLine("-----------------------------------------");
}
public static SIPResponse ParseSIPResponse(SIPMessage sipMessage)
{
try
{
SIPResponse sipResponse = new SIPResponse();
sipResponse.LocalSIPEndPoint = sipMessage.LocalSIPEndPoint;
sipResponse.RemoteSIPEndPoint = sipMessage.RemoteSIPEndPoint;
string statusLine = sipMessage.FirstLine;
int firstSpacePosn = statusLine.IndexOf(" ");
sipResponse.SIPVersion = statusLine.Substring(0, firstSpacePosn).Trim();
statusLine = statusLine.Substring(firstSpacePosn).Trim();
sipResponse.StatusCode = Convert.ToInt32(statusLine.Substring(0, 3));
sipResponse.Status = SIPResponseStatusCodes.GetStatusTypeForCode(sipResponse.StatusCode);
sipResponse.ReasonPhrase = statusLine.Substring(3).Trim();
sipResponse.Header = SIPHeader.ParseSIPHeaders(sipMessage.SIPHeaders);
sipResponse.Body = sipMessage.Body;
return(sipResponse);
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.LogError("Exception ParseSIPResponse. " + excp.Message);
logger.LogError(sipMessage.RawMessage);
throw new SIPValidationException(SIPValidationFieldsEnum.Response, "Error parsing SIP Response");
}
}
/// <summary>
/// Attempts to extract SIP messages from the data that has been received on the SIP stream connection.
/// </summary>
/// <param name="recvChannel">The receiving SIP channel.</param>
/// <param name="buffer">The buffer holding the current data from the stream. Note that the buffer can
/// stretch over multiple receives.</param>
/// <param name="bytesRead">The bytes that were read by the latest receive operation (the new bytes available).</param>
public void ExtractSIPMessages(SIPChannel recvChannel, byte[] buffer, int bytesRead)
{
RecvEndPosn += bytesRead;
int bytesSkipped = 0;
byte[] sipMsgBuffer = SIPMessage.ParseSIPMessageFromStream(buffer, RecvStartPosn, RecvEndPosn, out bytesSkipped);
while (sipMsgBuffer != null)
{
// A SIP message is available.
if (SIPMessageReceived != null)
{
LastTransmission = DateTime.Now;
SIPMessageReceived(recvChannel, new SIPEndPoint(ConnectionProtocol, RemoteEndPoint), sipMsgBuffer);
}
RecvStartPosn += (sipMsgBuffer.Length + bytesSkipped);
if (RecvStartPosn == RecvEndPosn)
{
// All data has been successfully extracted from the receive buffer.
RecvStartPosn = RecvEndPosn = 0;
break;
}
else
{
// Try and extract another SIP message from the receive buffer.
sipMsgBuffer = SIPMessage.ParseSIPMessageFromStream(buffer, RecvStartPosn, RecvEndPosn, out bytesSkipped);
}
}
}
/// <summary>
/// Attempts to parse a SIP message from a string containing a single SIP request or response.
/// </summary>
/// <param name="message">The string to parse.</param>
/// <param name="localSIPEndPoint">The end point the message was received on.</param>
/// <param name="remoteSIPEndPoint">The end point the message was received from.</param>
/// <returns>If successfull a SIP message or null if not.</returns>
public static SIPMessage ParseSIPMessage(string message, SIPEndPoint localSIPEndPoint, SIPEndPoint remoteSIPEndPoint)
{
try
{
SIPMessage sipMessage = new SIPMessage();
sipMessage.LocalSIPEndPoint = localSIPEndPoint;
sipMessage.RemoteSIPEndPoint = remoteSIPEndPoint;
sipMessage.RawMessage = message;
int endFistLinePosn = message.IndexOf(m_CRLF);
if (endFistLinePosn != -1)
{
sipMessage.FirstLine = message.Substring(0, endFistLinePosn);
if (sipMessage.FirstLine.Substring(0, 3) == SIP_RESPONSE_PREFIX)
{
sipMessage.SIPMessageType = SIPMessageTypesEnum.Response;
}
else
{
sipMessage.SIPMessageType = SIPMessageTypesEnum.Request;
}
int endHeaderPosn = message.IndexOf(m_CRLF + m_CRLF);
if (endHeaderPosn == -1)
{
// Assume flakey implementation if message does not contain the required CRLFCRLF sequence and treat the message as having no body.
string headerString = message.Substring(endFistLinePosn + 2, message.Length - endFistLinePosn - 2);
sipMessage.SIPHeaders = SIPHeader.SplitHeaders(headerString); //Regex.Split(headerString, m_CRLF);
}
else
{
string headerString = message.Substring(endFistLinePosn + 2, endHeaderPosn - endFistLinePosn - 2);
sipMessage.SIPHeaders = SIPHeader.SplitHeaders(headerString); //Regex.Split(headerString, m_CRLF);
if (message.Length > endHeaderPosn + 4)
{
sipMessage.Body = message.Substring(endHeaderPosn + 4);
}
}
return(sipMessage);
}
else
{
logger.LogWarning("Error ParseSIPMessage, there were no end of line characters in the string being parsed.");
return(null);
}
}
catch (Exception excp)
{
logger.LogError("Exception ParseSIPMessage. " + excp.Message + "\nSIP Message=" + message + ".");
return(null);
}
}
public static SIPRequest ParseSIPRequest(SIPMessage sipMessage)
{
string uriStr = null;
try
{
SIPRequest sipRequest = new SIPRequest();
sipRequest.LocalSIPEndPoint = sipMessage.LocalSIPEndPoint;
sipRequest.RemoteSIPEndPoint = sipMessage.RemoteSIPEndPoint;
string statusLine = sipMessage.FirstLine;
int firstSpacePosn = statusLine.IndexOf(" ");
string method = statusLine.Substring(0, firstSpacePosn).Trim();
sipRequest.Method = SIPMethods.GetMethod(method);
if (sipRequest.Method == SIPMethodsEnum.UNKNOWN)
{
sipRequest.UnknownMethod = method;
logger.LogWarning("Unknown SIP method received " + sipRequest.UnknownMethod + ".");
}
statusLine = statusLine.Substring(firstSpacePosn).Trim();
int secondSpacePosn = statusLine.IndexOf(" ");
if (secondSpacePosn != -1)
{
uriStr = statusLine.Substring(0, secondSpacePosn);
sipRequest.URI = SIPURI.ParseSIPURI(uriStr);
sipRequest.SIPVersion = statusLine.Substring(secondSpacePosn, statusLine.Length - secondSpacePosn).Trim();
sipRequest.Header = SIPHeader.ParseSIPHeaders(sipMessage.SIPHeaders);
sipRequest.Body = sipMessage.Body;
return(sipRequest);
}
else
{
throw new SIPValidationException(SIPValidationFieldsEnum.Request, "URI was missing on Request.");
}
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.LogError("Exception parsing SIP Request. " + excp.Message);
logger.LogError(sipMessage.RawMessage);
throw new SIPValidationException(SIPValidationFieldsEnum.Request, "Unknown error parsing SIP Request");
}
}
public void ParseMultiLineRecordRouteResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 10.0.0.100:5060;rport=61540;branch=z9hG4bK40661a8b4a2d4973ae75fa52f1940383" + m_CRLF +
"From: <sip:[email protected]>;tag=1014391101" + m_CRLF +
"To: <sip:[email protected]>;tag=gj-2k5-490f768a-00005cf1-00002e1aR2f0f2383.b" + m_CRLF +
"Call-ID: 1960514b216a465fb900e2966d30e9bb" + m_CRLF +
"CSeq: 2 INVITE" + m_CRLF +
"Record-Route: <sip:77.75.25.44:5060;lr=on>" + m_CRLF +
"Record-Route: <sip:77.75.25.45:5060;lr=on;ftag=1014391101>" + m_CRLF +
"Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay, multipart/mixed" + m_CRLF +
"Contact: <sip:[email protected]:5060>" + m_CRLF +
"Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS" + m_CRLF +
"Supported: timer" + m_CRLF +
"Session-Expires: 600;refresher=uas" + m_CRLF +
"Content-Length: 232" + m_CRLF +
"Content-Disposition: session; handling=required" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=Sonus_UAC 4125 3983 IN IP4 64.152.60.78" + m_CRLF +
"s=SIP Media Capabilities" + m_CRLF +
"c=IN IP4 64.152.60.164" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 19144 RTP/AVP 0 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-15" + m_CRLF +
"a=sendrecv" + m_CRLF +
"a=ptime:20" + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(okResp.Header.RecordRoutes.Length == 2, "The wrong number of Record-Route headers were present in the parsed response.");
Assert.IsTrue(okResp.Header.RecordRoutes.PopRoute().ToString() == "<sip:77.75.25.44:5060;lr=on>", "The top Record-Route header was incorrect.");
SIPRoute nextRoute = okResp.Header.RecordRoutes.PopRoute();
Assert.IsTrue(nextRoute.ToString() == "<sip:77.75.25.45:5060;lr=on;ftag=1014391101>", "The second Record-Route header was incorrect, " + nextRoute.ToString() + ".");
Console.WriteLine("-----------------------------------------");
}
public static SIPRequest ParseSIPRequest(string sipMessageStr)
{
try
{
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(sipMessageStr, null, null);
return(SIPRequest.ParseSIPRequest(sipMessage));
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.Error("Exception ParseSIPRequest. " + excp.Message);
logger.Error(sipMessageStr);
throw new SIPValidationException(SIPValidationFieldsEnum.Request, "Unknown error parsing SIP Request");
}
}
public static SIPResponse ParseSIPResponse(string sipMessageStr)
{
try
{
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(sipMessageStr, null, null);
return(SIPResponse.ParseSIPResponse(sipMessage));
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.LogError("Exception ParseSIPResponse. " + excp.Message);
logger.LogError(sipMessageStr);
throw new SIPValidationException(SIPValidationFieldsEnum.Response, "Error parsing SIP Response");
}
}
public SIPEndPoint LocalSIPEndPoint; // The local SIP socket the message was received on or sent from.
/// <summary>
/// Attempts to parse a SIP message from a single buffer that can only contain a single message.
/// </summary>
/// <param name="buffer">The buffer rhat will be parsed for a SIP message.</param>
/// <param name="localSIPEndPoint">The end point the message was received on.</param>
/// <param name="remoteSIPEndPoint">The end point the message was received from.</param>
/// <returns>If successfull a SIP message or null if not.</returns>
public static SIPMessage ParseSIPMessage(byte[] buffer, SIPEndPoint localSIPEndPoint, SIPEndPoint remoteSIPEndPoint)
{
string message = null;
try
{
if (buffer == null || buffer.Length < m_minFirstLineLength)
{
// Ignore.
return(null);
}
else if (buffer.Length > SIPConstants.SIP_MAXIMUM_RECEIVE_LENGTH)
{
throw new ApplicationException("SIP message received that exceeded the maximum allowed message length, ignoring.");
}
else if (!ByteBufferInfo.HasString(buffer, 0, buffer.Length, SIP_MESSAGE_IDENTIFIER, m_CRLF))
{
// Message does not contain "SIP" anywhere on the first line, ignore.
return(null);
}
else
{
message = Encoding.UTF8.GetString(buffer, 0, buffer.Length);
SIPMessage sipMessage = ParseSIPMessage(message, localSIPEndPoint, remoteSIPEndPoint);
if (sipMessage != null)
{
sipMessage.RawBuffer = buffer;
return(sipMessage);
}
else
{
return(null);
}
}
}
catch (Exception excp)
{
message = message.Replace("\n", "LF");
message = message.Replace("\r", "CR");
logger.LogError("Exception ParseSIPMessage. " + excp.Message + "\nSIP Message=" + message + ".");
return(null);
}
}
public void ParseAsteriskOKUnitTest()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.135:5060;branch=z9hG4bKT36BdhXPlT5cqPFQQr81yMmZ37U=" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;received=220.240.255.198:64216;branch=z9hG4bK7D8B6549580844AEA104BD4A837049DD" + m_CRLF +
"From: bluesipd <sip:bluesipd@bluesipd:5065>;tag=630217013" + m_CRLF +
"To: <sip:303@bluesipd>;tag=as46f418e9" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 27481 INVITE" + m_CRLF +
"User-Agent: asterisk" + m_CRLF +
"Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY" + m_CRLF +
"Contact: <sip:[email protected]>" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"Content-Length: 352" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=root 24710 24712 IN IP4 213.168.225.133" + m_CRLF +
"s=session" + m_CRLF +
"c=IN IP4 213.168.225.133" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 18656 RTP/AVP 0 8 18 3 97 111 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:8 PCMA/8000" + m_CRLF +
"a=rtpmap:18 G729/8000" + m_CRLF +
"a=rtpmap:3 GSM/8000" + m_CRLF +
"a=rtpmap:97 iLBC/8000" + m_CRLF +
"a=rtpmap:111 G726-32/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-16" + m_CRLF +
"a=silenceSupp:off - - - -" + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(okResp.Status == SIPResponseStatusCodesEnum.Ok, "The SIP response status was not parsed correctly.");
Assert.IsTrue(okResp.Body.Length == 352, "The SIP response body length was not correct.");
Console.WriteLine("-----------------------------------------");
}
public void ParseMultiLineViaResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 194.213.29.100:5060;branch=z9hG4bK5feb18267ce40fb05969b4ba843681dbfc9ffcff, SIP/2.0/UDP 194.213.29.54:5061;branch=z9hG4bK52b6a8b7" + m_CRLF +
"Record-Route: <sip:194.213.29.100:5060;lr>" + m_CRLF +
"From: Unknown <sip:[email protected]:5061>;tag=as58cbdbd1" + m_CRLF +
"To: <sip:[email protected]:5060>;tag=1144090013" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 102 INVITE" + m_CRLF +
"Contact: <sip:[email protected]:5060>" + m_CRLF +
"Server: Patton SN4634 3BIS 00A0BA04469B R5.3 2009-01-15 H323 SIP BRI M5T SIP Stack/4.0.28.28" + m_CRLF +
"Supported: replaces" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"Content-Length: 298" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=MxSIP 0 56 IN IP4 10.10.10.155" + m_CRLF +
"s=SIP Call" + m_CRLF +
"c=IN IP4 10.10.10.155" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 4974 RTP/AVP 0 18 8 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:18 G729/8000" + m_CRLF +
"a=rtpmap:8 PCMA/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:18 annexb=no" + m_CRLF +
"a=fmtp:101 0-16" + m_CRLF +
"a=sendrecv" + m_CRLF +
"m=video 0 RTP/AVP 31 34 103 99";
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(okResp.Header.Vias.Length == 2, "The wrong number of Record-Route headers were present in the parsed response.");
Assert.IsTrue(okResp.Header.Vias.TopViaHeader.ContactAddress == "194.213.29.100:5060", "The top via contact address was not ocrrectly parsed.");
Console.WriteLine("-----------------------------------------");
}
public void ParseMSCOkResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"From: Blue Face<sip:[email protected]>;tag=as5fd53de7" + m_CRLF +
"To: sip:[email protected];tag=MTHf2-ol1Yn0" + m_CRLF +
"Call-ID: [email protected]:5061" + m_CRLF +
"CSeq: 102 INVITE" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.133:5060;branch=z9hG4bKG+WGOVwLyT6vOW9s" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.133:5061;branch=z9hG4bK09db9c73" + m_CRLF +
"Contact: +3535xxx<sip:[email protected]:5061>" + m_CRLF +
"User-Agent: MSC/VC510 Build-Date Nov 7 2005" + m_CRLF +
"Allow: INVITE,BYE,CANCEL,OPTIONS,PRACK,NOTIFY,UPDATE,REFER" + m_CRLF +
"Supported: timer,replaces" + m_CRLF +
"Record-Route: <sip:213.168.225.133:5060;lr>,<sip:213.168.225.133:5061;lr>" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"Content-Length: 182" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=xxxxxxxxx 75160 1 IN IP4 127.127.127.30" + m_CRLF +
"s=-" + m_CRLF +
"c=IN IP4 127.127.127.30" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 8002 RTP/AVP 0 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=ptime:20";
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse okResp = SIPResponse.ParseSIPResponse(sipMessage);
Console.WriteLine("To: " + okResp.Header.To.ToString());
Assert.AreEqual(SIPResponseStatusCodesEnum.Ok, okResp.Status, "Response should have been ok.");
Assert.AreEqual("127.0.0.1", okResp.Header.To.ToURI.Host, "To URI host was not parsed correctly.");
Console.WriteLine("-----------------------------------------");
}
public void ParseForbiddenResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg = "SIP/2.0 403 Forbidden" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.1;branch=z9hG4bKbcb78f72d221beec" + m_CRLF +
"From: <sip:sip.blueface.ie>;tag=9a4c86234adcc297" + m_CRLF +
"To: <sip:sip.blueface.ie>;tag=as6900b876" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 100 REGISTER" + m_CRLF +
"User-Agent: asterisk" + m_CRLF +
"Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY" + m_CRLF +
"Contact: <sip:[email protected]>" + m_CRLF +
"Content-Length: 0" + m_CRLF + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse forbiddenResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(forbiddenResp.Status == SIPResponseStatusCodesEnum.Forbidden, "The SIP response status was not parsed correctly.");
Console.WriteLine("-----------------------------------------");
}
public void ParseResponseNoEndDoubleCRLFUnitTest()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 100 Trying" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.135:5060;branch=z9hG4bKD+ta2mJ+C+VV/L50aPO1lFJnrag=" + m_CRLF +
"Via: SIP/2.0/UDP 192.168.1.2:5065;received=220.240.255.198:64193;branch=z9hG4bKB86FC8D2431F49E9862D1EE439C78AD8" + m_CRLF +
"From: bluesipd <sip:bluesipd@bluesipd:5065>;tag=3272744142" + m_CRLF +
"To: <sip:303@bluesipd>" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"CSeq: 45560 INVITE" + m_CRLF +
"User-Agent: asterisk" + m_CRLF +
"Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY" + m_CRLF +
"Contact: <sip:[email protected]>" + m_CRLF +
"Content-Length: 0" + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
Assert.IsTrue(sipMessage != null, "The SIP message not parsed correctly.");
Console.WriteLine("-----------------------------------------");
}
public void ParseOptionsResponse()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 194.213.29.11:5060;branch=z9hG4bK330f55c874" + m_CRLF +
"From: Anonymous <sip:194.213.29.11:5060>;tag=6859154930" + m_CRLF +
"To: <sip:[email protected]:10062>;tag=0013c339acec0fe007b80bbf-30071da3" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"Date: Mon, 01 May 2006 13:47:24 GMT" + m_CRLF +
"CSeq: 915 OPTIONS" + m_CRLF +
"Server: CSCO/7" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"Content-Length: 247" + m_CRLF +
"Allow: OPTIONS,INVITE,BYE,CANCEL,REGISTER,ACK,NOTIFY,REFER" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=Cisco-SIPUA (null) (null) IN IP4 192.168.1.100" + m_CRLF +
"s=SIP Call" + m_CRLF +
"c=IN IP4 192.168.1.100" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 1 RTP/AVP 0 8 18 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:8 PCMA/8000" + m_CRLF +
"a=rtpmap:18 G729/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-15" + m_CRLF + m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse optionsResp = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(optionsResp.Status == SIPResponseStatusCodesEnum.Ok, "The SIP response status was not parsed correctly.");
Console.WriteLine("-----------------------------------------");
}
public void ParseCiscoOptionsResponseUnitTest()
{
Console.WriteLine("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"SIP/2.0 200 OK" + m_CRLF +
"Via: SIP/2.0/UDP 213.168.225.133:5060;branch=z9hG4bK7ae332e73550dbdf2f159061651e7ed5bb88ac52, SIP/2.0/UDP 194.213.29.52:5064;branch=z9hG4bK1121681627" + m_CRLF +
"From: <sip:[email protected]:5064>;tag=8341482660" + m_CRLF +
"To: <sip:[email protected]:5060>;tag=000e38e46c60ef28651381fe-201e6ab1" + m_CRLF +
"Call-ID: [email protected]" + m_CRLF +
"Date: Wed, 29 Nov 2006 22:31:58 GMT" + m_CRLF +
"CSeq: 148 OPTIONS" + m_CRLF +
"Server: CSCO/7" + m_CRLF +
"Content-Type: application/sdp" + m_CRLF +
"Allow: OPTIONS,INVITE,BYE,CANCEL,REGISTER,ACK,NOTIFY,REFER" + m_CRLF +
"Content-Length: 193" + m_CRLF +
m_CRLF +
"v=0" + m_CRLF +
"o=Cisco-SIPUA (null) (null) IN IP4 87.198.196.121" + m_CRLF +
"s=SIP Call" + m_CRLF +
"c=IN IP4 87.198.196.121" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 1 RTP/AVP 18 0 8" + m_CRLF +
"a=rtpmap:18 G729/8000" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:8 PCMA/8000" + m_CRLF +
m_CRLF;
SIPMessage sipMessage = SIPMessage.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
SIPResponse sipResponse = SIPResponse.ParseSIPResponse(sipMessage);
Assert.IsTrue(sipMessage != null, "The SIP message not parsed correctly.");
Assert.IsTrue(sipResponse.Header.Vias.Length == 2, "The SIP reponse did not end up with the right number of Via headers.");
Console.WriteLine("-----------------------------------------");
}
public static SIPMessage ParseSIPMessage(string message, SIPEndPoint localSIPEndPoint, SIPEndPoint remoteSIPEndPoint)
{
try
{
SIPMessage sipMessage = new SIPMessage();
sipMessage.LocalSIPEndPoint = localSIPEndPoint;
sipMessage.RemoteSIPEndPoint = remoteSIPEndPoint;
sipMessage.RawMessage = message;
int endFistLinePosn = message.IndexOf(m_CRLF);
if (endFistLinePosn != -1)
{
sipMessage.FirstLine = message.Substring(0, endFistLinePosn);
if (sipMessage.FirstLine.Substring(0, 3) == SIP_RESPONSE_PREFIX)
{
sipMessage.SIPMessageType = SIPMessageTypesEnum.Response;
}
else
{
sipMessage.SIPMessageType = SIPMessageTypesEnum.Request;
}
int endHeaderPosn = message.IndexOf(m_CRLF + m_CRLF);
if (endHeaderPosn == -1)
{
// Assume flakey implementation if message does not contain the required CRLFCRLF sequence and treat the message as having no body.
string headerString = message.Substring(endFistLinePosn + 2, message.Length - endFistLinePosn - 2);
sipMessage.SIPHeaders = SIPHeader.SplitHeaders(headerString); //Regex.Split(headerString, m_CRLF);
}
else
{
string headerString = message.Substring(endFistLinePosn + 2, endHeaderPosn - endFistLinePosn - 2);
sipMessage.SIPHeaders = SIPHeader.SplitHeaders(headerString); //Regex.Split(headerString, m_CRLF);
if (message.Length > endHeaderPosn + 4)
{
sipMessage.Body = message.Substring(endHeaderPosn + 4);
}
}
return sipMessage;
}
else
{
logger.Warn("Error ParseSIPMessage, there were no end of line characters in the string being parsed.");
return null;
}
}
catch(Exception excp)
{
logger.Error("Exception ParseSIPMessage. " + excp.Message + "\nSIP Message=" + message + ".");
return null;
}
}
public static SIPResponse ParseSIPResponse(SIPMessage sipMessage)
{
try
{
SIPResponse sipResponse = new SIPResponse();
sipResponse.LocalSIPEndPoint = sipMessage.LocalSIPEndPoint;
sipResponse.RemoteSIPEndPoint = sipMessage.RemoteSIPEndPoint;
string statusLine = sipMessage.FirstLine;
int firstSpacePosn = statusLine.IndexOf(" ");
sipResponse.SIPVersion = statusLine.Substring(0, firstSpacePosn).Trim();
statusLine = statusLine.Substring(firstSpacePosn).Trim();
sipResponse.StatusCode = Convert.ToInt32(statusLine.Substring(0, 3));
sipResponse.Status = SIPResponseStatusCodes.GetStatusTypeForCode(sipResponse.StatusCode);
sipResponse.ReasonPhrase = statusLine.Substring(3).Trim();
sipResponse.Header = SIPHeader.ParseSIPHeaders(sipMessage.SIPHeaders);
sipResponse.Body = sipMessage.Body;
return sipResponse;
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.Error("Exception ParseSIPResponse. " + excp.Message);
logger.Error(sipMessage.RawMessage);
throw new SIPValidationException(SIPValidationFieldsEnum.Response, "Error parsing SIP Response");
}
}
public static SIPRequest ParseSIPRequest(SIPMessage sipMessage)
{
string uriStr = null;
try
{
SIPRequest sipRequest = new SIPRequest();
sipRequest.LocalSIPEndPoint = sipMessage.LocalSIPEndPoint;
sipRequest.RemoteSIPEndPoint = sipMessage.RemoteSIPEndPoint;
string statusLine = sipMessage.FirstLine;
int firstSpacePosn = statusLine.IndexOf(" ");
string method = statusLine.Substring(0, firstSpacePosn).Trim();
sipRequest.Method = SIPMethods.GetMethod(method);
if (sipRequest.Method == SIPMethodsEnum.UNKNOWN)
{
sipRequest.UnknownMethod = method;
logger.Warn("Unknown SIP method received " + sipRequest.UnknownMethod + ".");
}
statusLine = statusLine.Substring(firstSpacePosn).Trim();
int secondSpacePosn = statusLine.IndexOf(" ");
if (secondSpacePosn != -1)
{
uriStr = statusLine.Substring(0, secondSpacePosn);
sipRequest.URI = SIPURI.ParseSIPURI(uriStr);
sipRequest.SIPVersion = statusLine.Substring(secondSpacePosn, statusLine.Length - secondSpacePosn).Trim();
sipRequest.Header = SIPHeader.ParseSIPHeaders(sipMessage.SIPHeaders);
sipRequest.Body = sipMessage.Body;
return sipRequest;
}
else
{
throw new SIPValidationException(SIPValidationFieldsEnum.Request, "URI was missing on Request.");
}
}
catch (SIPValidationException)
{
throw;
}
catch (Exception excp)
{
logger.Error("Exception parsing SIP Request. " + excp.Message);
logger.Error(sipMessage.RawMessage);
throw new SIPValidationException(SIPValidationFieldsEnum.Request, "Unknown error parsing SIP Request");
}
}