public override SipCSeqHeader Parse(StringReader r)
{
SipCSeqHeader header = new SipCSeqHeader();
var word = r.ReadWord();
IfNullThrowParseExceptionInvalidFormat(word);
word = word.Trim();
IfFalseThrowParseException(ParseUtil.IsInteger(word), ExceptionMessage.InvalidFormat);
header.Sequence = int.Parse(word);
word = r.ReadWord();
IfNullOrEmptyThrowParseExceptionInvalidFormat(word);
IfFalseThrowParseException(SipMethods.IsMethod(word), ExceptionMessage.SipMethodNotSupprted);
IfFalseThrowParseException(string.IsNullOrWhiteSpace(r.ReadToEnd()), ExceptionMessage.InvalidFormat);
header.Command = word.Trim();
return(header);
}
public ValidateRequestResult ValidateRequest(SipRequest request)
{
var result = new ValidateRequestResult();
if (!SipMethods.IsMethod(request.RequestLine.Method))
{
result.UnSupportedSipMethod = request.RequestLine.Method;
}
result.MissingRequiredHeader = FindFirstMissingRequiredHeader(request);
result.HasUnSupportedSipVersion = !ValidateSipVersion(request.RequestLine.Version);
if (result.HasRequiredHeadersMissing)
{
return(result);
}
result.HasInvalidSCeqMethod = !ValidateCSeqMethod(request);
return(result);
}
public SipRequest CreateRequest(string method, SipViaHeader viaheader = null)
{
if (State < DialogState.Early)
{
throw new InvalidOperationException("The dialog is unable to create the request. A dialog in 'NULL' state can not create requests.");
}
Check.IsTrue(SipMethods.IsMethod(method), "method argument must be a SIP method");
var cseqHeader = _headerFactory.CreateSCeqHeader(method, _localSequenceNr);
var toAddress = _addressFactory.CreateAddress(null, _remoteUri);
var toHeader = _headerFactory.CreateToHeader(toAddress, _remoteTag);
var fromAddress = _addressFactory.CreateAddress(null, _localUri);
var fromHeader = _headerFactory.CreateFromHeader(fromAddress, _localTag);
var callIdheader = _headerFactory.CreateCallIdHeader(_callId);
var viaHeader = viaheader ?? _headerFactory.CreateViaHeader(_listeningPoint, SipConstants.Udp, SipUtil.CreateBranch());
var requestUri = _remoteUri.Clone();
var maxForwardsHeader = _headerFactory.CreateMaxForwardsHeader();
var request = _messageFactory.CreateRequest(
requestUri,
method,
callIdheader,
cseqHeader,
fromHeader,
toHeader,
viaHeader,
maxForwardsHeader);
foreach (var route in _routeSet)
{
request.Routes.Add(new SipRouteHeader()
{
SipUri = route.SipUri, Parameters = route.Parameters
});
}
return(request);
}