private SIPRequest GetDummyINVITERequest(SIPURI dummyURI)
{
string dummyFrom = "<sip:[email protected]>";
string dummyContact = "sip:127.0.0.1:1234";
SIPRequest inviteRequest = new SIPRequest(SIPMethodsEnum.INVITE, dummyURI);
SIPHeader inviteHeader = new SIPHeader(SIPFromHeader.ParseFromHeader(dummyFrom), new SIPToHeader(null, dummyURI, null), 1, CallProperties.CreateNewCallId());
inviteHeader.From.FromTag = CallProperties.CreateNewTag();
inviteHeader.Contact = SIPContactHeader.ParseContactHeader(dummyContact);
inviteHeader.CSeqMethod = SIPMethodsEnum.INVITE;
inviteHeader.UserAgent = "unittest";
inviteRequest.Header = inviteHeader;
SIPViaHeader viaHeader = new SIPViaHeader("127.0.0.1", 1234, CallProperties.CreateBranchId(), SIPProtocolsEnum.udp);
inviteRequest.Header.Vias.PushViaHeader(viaHeader);
inviteRequest.Body = "dummy";
inviteRequest.Header.ContentLength = inviteRequest.Body.Length;
inviteRequest.Header.ContentType = "application/sdp";
return(inviteRequest);
}
internal UASInviteTransaction(
SIPTransport sipTransport,
SIPRequest sipRequest,
SIPEndPoint outboundProxy,
bool noCDR = false)
: base(sipTransport, sipRequest, outboundProxy)
{
TransactionType = SIPTransactionTypesEnum.InviteServer;
m_remoteTag = sipRequest.Header.From.FromTag;
if (sipRequest.Header.To.ToTag == null)
{
// This UAS needs to set the To Tag.
m_localTag = CallProperties.CreateNewTag();
}
else
{
// This is a re-INVITE.
m_localTag = sipRequest.Header.To.ToTag;
}
//logger.LogDebug("New UASTransaction (" + TransactionId + ") for " + TransactionRequest.URI.ToString() + " to " + RemoteEndPoint + ".");
SIPEndPoint localEP = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedOn) ?? sipRequest.LocalSIPEndPoint;
SIPEndPoint remoteEP = SIPEndPoint.TryParse(sipRequest.Header.ProxyReceivedFrom) ?? sipRequest.RemoteSIPEndPoint;
if (!noCDR)
{
CDR = new SIPCDR(SIPCallDirection.In, sipRequest.URI, sipRequest.Header.From, sipRequest.Header.CallId, localEP, remoteEP);
}
TransactionRequestReceived += UASInviteTransaction_TransactionRequestReceived;
TransactionInformationResponseReceived += UASInviteTransaction_TransactionResponseReceived;
TransactionFinalResponseReceived += UASInviteTransaction_TransactionResponseReceived;
TransactionTimedOut += UASInviteTransaction_TransactionTimedOut;
TransactionRemoved += UASInviteTransaction_TransactionRemoved;
}
/// <summary>
/// Used to create a SIP response for a request when it was not possible to parse the incoming SIP request.
/// The response generated by this method may or may not make it back to the requester. Because the SIP
/// request could not be parsed there are no Via headers available and without those the return network
/// path is missing. Instead a new Via header is generated that may get through if the requester is only
/// one SIP hop away.
/// </summary>
/// <param name="localSIPEndPoint">The local SIP end point the request was received on.</param>
/// <param name="remoteSIPEndPoint">The remote SIP end point the request was received on.</param>
/// <param name="responseCode">The response code to set on the response.</param>
/// <param name="reasonPhrase">Optional reason phrase to set on the response (keep short).</param>
public static SIPResponse GetResponse(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteSIPEndPoint, SIPResponseStatusCodesEnum responseCode, string reasonPhrase)
{
try
{
SIPResponse response = new SIPResponse(responseCode, reasonPhrase);
response.SetSendFromHints(localSIPEndPoint);
SIPSchemesEnum sipScheme = (localSIPEndPoint.Protocol == SIPProtocolsEnum.tls) ? SIPSchemesEnum.sips : SIPSchemesEnum.sip;
SIPFromHeader from = new SIPFromHeader(null, new SIPURI(sipScheme, localSIPEndPoint), null);
SIPToHeader to = new SIPToHeader(null, new SIPURI(sipScheme, localSIPEndPoint), null);
int cSeq = 1;
string callId = CallProperties.CreateNewCallId();
response.Header = new SIPHeader(from, to, cSeq, callId);
response.Header.CSeqMethod = SIPMethodsEnum.NONE;
response.Header.Vias.PushViaHeader(new SIPViaHeader(new SIPEndPoint(localSIPEndPoint.Protocol, remoteSIPEndPoint.GetIPEndPoint()), CallProperties.CreateBranchId()));
response.Header.MaxForwards = Int32.MinValue;
response.Header.Allow = m_allowedSIPMethods;
return(response);
}
catch (Exception excp)
{
logger.LogError("Exception SIPResponse.GetResponse. " + excp.Message);
throw;
}
}
/// <summary>
/// Helper method to create a SIP response for a SIP request. This method can be thought of as creating a
/// vanilla (or no frills) response for a request. It's suitable for generating error responses. For requests that
/// require an action such as creating a call or registering a contact the response will require additional
/// information and this method will not be suitable.
/// </summary>
/// <param name="sipRequest">The SIP request to create the response for.</param>
/// <param name="responseCode">The response code.</param>
/// <param name="reasonPhrase">Optional reason phrase to set on the response (needs to be short).</param>
/// <returns>A SIP response object.</returns>
public static SIPResponse GetResponse(SIPRequest sipRequest, SIPResponseStatusCodesEnum responseCode, string reasonPhrase)
{
try
{
SIPResponse response = new SIPResponse(responseCode, reasonPhrase);
response.SetSendFromHints(sipRequest.LocalSIPEndPoint);
if (reasonPhrase != null)
{
response.ReasonPhrase = reasonPhrase;
}
SIPHeader requestHeader = sipRequest.Header;
SIPFromHeader from = (requestHeader == null || requestHeader.From != null) ? requestHeader.From : new SIPFromHeader(null, new SIPURI(sipRequest.URI.Scheme, sipRequest.LocalSIPEndPoint), null);
SIPToHeader to = (requestHeader == null || requestHeader.To != null) ? requestHeader.To : new SIPToHeader(null, new SIPURI(sipRequest.URI.Scheme, sipRequest.LocalSIPEndPoint), null);
int cSeq = (requestHeader == null || requestHeader.CSeq != -1) ? requestHeader.CSeq : 1;
string callId = (requestHeader == null || requestHeader.CallId != null) ? requestHeader.CallId : CallProperties.CreateNewCallId();
response.Header = new SIPHeader(from, to, cSeq, callId);
response.Header.CSeqMethod = (requestHeader != null) ? requestHeader.CSeqMethod : SIPMethodsEnum.NONE;
if (requestHeader == null || requestHeader.Vias == null || requestHeader.Vias.Length == 0)
{
response.Header.Vias.PushViaHeader(new SIPViaHeader(sipRequest.RemoteSIPEndPoint, CallProperties.CreateBranchId()));
}
else
{
response.Header.Vias = requestHeader.Vias;
}
response.Header.MaxForwards = Int32.MinValue;
response.Header.Allow = m_allowedSIPMethods;
return(response);
}
catch (Exception excp)
{
logger.LogError("Exception SIPResponse.GetResponse. " + excp.Message);
throw;
}
}