public void GenerateForwardedResponse(SipMessageWriter writer, SipMessageReader reader, ArraySegment <byte> content, ConnectionAddresses ca)
{
writer.WriteStatusLine(reader.StatusCode);
int recordRouteCount = reader.Count.RecordRouteCount;
bool writeContact = true;
for (int i = 1; i < reader.Count.ViaCount; i++)
{
writer.WriteHeader(HeaderNames.Via, reader.Via[i].Value);
}
for (int i = 0; i < reader.Count.HeaderCount; i++)
{
switch (reader.Headers[i].HeaderName)
{
case HeaderNames.Via:
break;
case HeaderNames.Authorization:
case HeaderNames.ProxyAuthorization:
// remove exact authorization header
break;
case HeaderNames.Contact:
if (writeContact)
{
writer.WriteContact(reader.Contact[0].AddrSpec.User, ca.LocalEndPoint, ca.Transport, reader.Contact[0].SipInstance);
writeContact = false;
}
break;
case HeaderNames.RecordRoute:
{
recordRouteCount--;
if (recordRouteCount != recordRouteIndex)
{
goto default;
}
writer.WriteRecordRoute(ca.Transport, ca.LocalEndPoint);
}
break;
default:
writer.WriteHeader(reader, i);
break;
}
}
if (reader.ContentLength == int.MinValue)
{
writer.WriteContentLength(content.Count);
}
writer.WriteCustomHeaders();
writer.WriteCRLF();
writer.Write(content);
}
public void GenerateForwardedRequest(SipMessageWriter writer, SipMessageReader reader, ArraySegment <byte> content, ConnectionAddresses fromConnectionAddress, int serverTransactionId)
{
Tracer.WriteInformation("LocalProxie.GenerateForwardedRequest");
recordRouteIndex = reader.Count.RecordRouteCount;
writer.WriteRequestLine(reader.Method, binding.AddrSpec);
//var msReceivedCid = fromConnectionAddress.ToLowerHexChars(serverTransactionId);
//writer.WriteVia(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint, TransactionId, msReceivedCid);
//writer.WriteRecordRoute(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint, msReceivedCid);
writer.WriteVia(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint, TransactionId);
writer.WriteRecordRoute(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint);
bool writeContact = true;
for (int i = 0; i < reader.Count.HeaderCount; i++)
{
switch (reader.Headers[i].HeaderName)
{
case HeaderNames.MaxForwards:
{
int maxForwards = (reader.MaxForwards == int.MinValue) ? 70 : reader.MaxForwards;
writer.WriteMaxForwards(maxForwards - 1);
}
break;
case HeaderNames.Authorization:
case HeaderNames.ProxyAuthorization:
// remove exact authorization header
break;
case HeaderNames.To:
writer.WriteToHeader(reader, i, binding.Epid);
break;
case HeaderNames.Contact:
if (writeContact)
{
writer.WriteContact(reader.Contact[0].AddrSpec.User, binding.ConnectionAddresses.LocalEndPoint, binding.ConnectionAddresses.Transport, reader.Contact[0].SipInstance);
writeContact = false;
}
break;
default:
writer.WriteHeader(reader, i);
break;
}
}
if (reader.ContentLength == int.MinValue)
{
writer.WriteContentLength(content.Count);
}
writer.WriteCustomHeaders();
writer.WriteCRLF();
writer.Write(content);
}
