public void SignMessage(SipMessageWriter writer)
{
outSnum++;
int srand2 = Environment.TickCount;
InitializeThreadStaticVars();
int length = SignatureBuffer.Generate(scheme, srand2, outSnum, targetname, writer, ref bytes1);
if (bytes2.Length < maxSignatureSize)
{
bytes2 = new byte[maxSignatureSize];
}
secBufferDesc1.Buffers[0].SetBuffer(BufferType.SECBUFFER_DATA, bytes1, 0, length);
secBufferDesc1.Buffers[1].SetBuffer(BufferType.SECBUFFER_TOKEN, bytes2);
var result = Sspi.SafeMakeSignature(contextHandle, ref secBufferDesc1, 100);
Tracer.WriteInformation("Signature: " + result.ToString());
if (Sspi.Succeeded(result))
{
writer.WriteAuthenticationInfo(true, scheme, targetname, realm, Opaque, outSnum, srand2,
new ArraySegment <byte>(bytes2, 0, secBufferDesc1.Buffers[1].Size));
if (writer.IsResponse && writer.StatusCode >= 200 && writer.StatusCode <= 299)
{
if (writer.Method == Methods.Registerm && writer.Expires != int.MinValue)
{
idleTime = DateTime.UtcNow.AddSeconds(writer.Expires + 30);
idleTimeUpdatedByExpires = true;
}
}
else
{
// TODO: INVITE Session-Expires
}
}
}
