public SIPResponse GetOkResponse(string contentType, string messageBody)
{
try
{
SIPResponse okResponse = new SIPResponse(SIPResponseStatusCodesEnum.Ok, null);
okResponse.SetSendFromHints(TransactionRequest.LocalSIPEndPoint);
SIPHeader requestHeader = TransactionRequest.Header;
okResponse.Header = new SIPHeader(SIPContactHeader.GetDefaultSIPContactHeader(), requestHeader.From, requestHeader.To, requestHeader.CSeq, requestHeader.CallId);
okResponse.Header.To.ToTag = m_localTag;
okResponse.Header.CSeqMethod = requestHeader.CSeqMethod;
okResponse.Header.Vias = requestHeader.Vias;
okResponse.Header.Server = m_sipServerAgent;
okResponse.Header.MaxForwards = Int32.MinValue;
okResponse.Header.RecordRoutes = requestHeader.RecordRoutes;
okResponse.Header.Supported = (PrackSupported == true) ? SIPExtensionHeaders.PRACK : null;
okResponse.Body = messageBody;
okResponse.Header.ContentType = contentType;
okResponse.Header.ContentLength = (messageBody != null) ? messageBody.Length : 0;
return(okResponse);
}
catch (Exception excp)
{
logger.LogError("Exception GetOkResponse. " + excp.Message);
throw excp;
}
}
public SIPResponse GetOkResponse(string contentType, string messageBody)
{
SIPResponse okResponse = new SIPResponse(SIPResponseStatusCodesEnum.Ok, null);
okResponse.SetSendFromHints(TransactionRequest.LocalSIPEndPoint);
SIPHeader requestHeader = TransactionRequest.Header;
okResponse.Header = new SIPHeader(
SIPContactHeader.GetDefaultSIPContactHeader(TransactionRequest.URI.Scheme),
requestHeader.From, requestHeader.To,
requestHeader.CSeq,
requestHeader.CallId);
okResponse.Header.To.ToTag = m_localTag;
okResponse.Header.CSeqMethod = requestHeader.CSeqMethod;
okResponse.Header.Vias = requestHeader.Vias;
okResponse.Header.Server = SIPConstants.SipUserAgentVersionString;
okResponse.Header.MaxForwards = Int32.MinValue;
okResponse.Header.RecordRoutes = requestHeader.RecordRoutes;
okResponse.Header.Supported = SIPExtensionHeaders.REPLACES + ", " + SIPExtensionHeaders.NO_REFER_SUB
+ ((PrackSupported == true) ? ", " + SIPExtensionHeaders.PRACK : "");
okResponse.Body = messageBody;
okResponse.Header.ContentType = contentType;
okResponse.Header.ContentLength = (messageBody != null) ? messageBody.Length : 0;
return(okResponse);
}
/// <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 excp;
}
}
private SIPResponse GetCancelResponse(SIPRequest sipRequest, SIPResponseStatusCodesEnum sipResponseCode)
{
try
{
SIPResponse cancelResponse = new SIPResponse(sipResponseCode, null);
cancelResponse.SetSendFromHints(sipRequest.LocalSIPEndPoint);
SIPHeader requestHeader = sipRequest.Header;
cancelResponse.Header = new SIPHeader(requestHeader.From, requestHeader.To, requestHeader.CSeq, requestHeader.CallId);
cancelResponse.Header.CSeqMethod = SIPMethodsEnum.CANCEL;
cancelResponse.Header.Vias = requestHeader.Vias;
cancelResponse.Header.MaxForwards = Int32.MinValue;
return(cancelResponse);
}
catch (Exception excp)
{
logger.LogError("Exception GetCancelResponse. " + excp.Message);
throw excp;
}
}
protected SIPResponse GetInfoResponse(SIPRequest sipRequest, SIPResponseStatusCodesEnum sipResponseCode)
{
try
{
SIPResponse informationalResponse = new SIPResponse(sipResponseCode, null);
informationalResponse.SetSendFromHints(sipRequest.LocalSIPEndPoint);
SIPHeader requestHeader = sipRequest.Header;
informationalResponse.Header = new SIPHeader(requestHeader.From, requestHeader.To, requestHeader.CSeq, requestHeader.CallId);
informationalResponse.Header.CSeqMethod = requestHeader.CSeqMethod;
informationalResponse.Header.Vias = requestHeader.Vias;
informationalResponse.Header.MaxForwards = Int32.MinValue;
informationalResponse.Header.Timestamp = requestHeader.Timestamp;
return(informationalResponse);
}
catch (Exception excp)
{
logger.LogError("Exception GetInformationalResponse. " + excp.Message);
throw excp;
}
}