public static void InitializeAsync(Action <int> callback)
{
var reader = new SipMessageReader();
reader.LoadTables();
ThreadPool.QueueUserWorkItem((stateInfo) => { callback(reader.CompileParseMethod()); });
}
public bool IsAccepted(SipMessageReader reader)
{
return
reader.ContentType.Type.Equals(type) &&
reader.ContentType.Subtype.Equals(subtype) &&
reader.To.AddrSpec.User.StartsWith(userPrefix);
}
public void Load()
{
var dfa = new SipMessageReader();
dfa.LoadTables(@"..\..\..\Sip.Message\Sip.Message.dfa");
dfa.SetDefaultValue();
dfa.Parse(new byte[] { 0 }, 0, 1);
}
public bool CanFork(SipMessageReader response)
{
if (response.StatusCode.Value != 407 && response.StatusCode.Value != 401)
return false;
return trunk.UpdateChallenge(response.GetAnyChallenge());
}
protected SipMessageWriter GenerateResponse(SipMessageReader reader, StatusCodes statusCode)
{
var writer = GetWriter();
writer.WriteResponse(reader, statusCode);
return writer;
}
public void WriteHeader(SipMessageReader reader, int index)
{
Write(reader.Headers[index].Name, C.HCOLON);
int headerBegin = reader.Headers[index].Value.Begin;
switch (reader.Headers[index].HeaderName)
{
case HeaderNames.CallId:
callId = CreateRange(reader.CallId, headerBegin);
break;
case HeaderNames.From:
fromAddrspec = CreateRange(reader.From.AddrSpec.Value, headerBegin);
fromTag = CreateRange(reader.From.Tag, headerBegin);
fromEpid = CreateRange(reader.From.Epid, headerBegin);
break;
case HeaderNames.To:
toAddrspec = CreateRange(reader.To.AddrSpec.Value, headerBegin);
toTag = CreateRange(reader.To.Tag, headerBegin);
toEpid = CreateRange(reader.To.Epid, headerBegin);
break;
case HeaderNames.CSeq:
Method = reader.CSeq.Method;
CSeq = reader.CSeq.Value;
break;
}
Write(reader.Headers[index].Value, C.CRLF);
}
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);
}
public Dialog Create(SipMessageReader message, int localTag, ConnectionAddresses connectionAddresses)
{
var dialog = new Dialog(message, localTag, connectionAddresses);
dictionary.Add(dialog.Id, dialog);
return dialog;
}
public void WriteResponse(SipMessageReader request, StatusCodes statusCode, ByteArrayPart localTag)
{
WriteStatusLine(statusCode);
CopyViaToFromCallIdRecordRouteCSeq(request, statusCode, localTag);
WriteContentLength(0);
WriteCustomHeaders();
WriteCRLF();
}
public IncomingMessage(Transports transport, IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, int connectionId, SipMessageReader reader, ArraySegment<byte> readerData, ArraySegment<byte> contentData)
{
ConnectionAddresses = new ConnectionAddresses(transport, localEndPoint, remoteEndPoint, connectionId);
Reader = reader;
Header = readerData;
Content = contentData;
}
public IncomingMessage(ConnectionAddresses connectionAddresses, Connection connection)
{
ConnectionAddresses = connectionAddresses;
Reader = connection.Reader;
Header = connection.Header;
Content = connection.Content;
}
public bool IsChanged(SipMessageReader reader, int contactIndex)
{
return
AddrSpec != reader.Contact[contactIndex].AddrSpec.Value ||
SipInstance != reader.Contact[contactIndex].SipInstance ||
Epid != reader.From.Epid ||
CallId != reader.CallId;
}
public void WriteResponse(SipMessageReader request, StatusCodes statusCode, ByteArrayPart localTag)
{
WriteStatusLine(statusCode);
CopyViaToFromCallIdRecordRouteCSeq(request, statusCode, localTag);
WriteContentLength(0);
WriteCustomHeaders();
WriteCRLF();
}
public IncomingMessage(Connection connection)
{
ConnectionAddresses = new ConnectionAddresses(GetTransport(connection), connection.LocalEndPoint,
new IPEndPoint(connection.RemoteEndPoint.Address, connection.RemoteEndPoint.Port), connection.Id);
Reader = connection.Reader;
Header = connection.Header;
Content = connection.Content;
}
/// <summary>
/// DEPRECATED!!! Не удобно читать код, не видно откуда CallLegTransactionDoesNotExist
/// </summary>
public Dialog GetOrCreate(SipMessageReader reader, ConnectionAddresses connectionAddresses, out StatusCodes statusCode)
{
var dialog = GetOrCreate(reader, connectionAddresses);
statusCode = (dialog == null) ?
StatusCodes.CallLegTransactionDoesNotExist : StatusCodes.OK;
return dialog;
}
public static SipMessageReader GetEmpty()
{
connectionId = -1;
if (Value == null)
Value = new SipMessageReader();
Value.SetDefaultValue();
return Value;
}
public Dialog GetOrCreate(SipMessageReader reader, ConnectionAddresses connectionAddresses)
{
Dialog dialog = null;
if (reader.To.Tag.IsInvalid)
dialog = Create(reader, NewLocalTag(), connectionAddresses);
else
dialog = Get(reader);
return dialog;
}
public void GenerateForwardedRequest(SipMessageWriter writer, SipMessageReader reader, ArraySegment<byte> content, ConnectionAddresses fromConnectionAddress, int serverTransactionId)
{
dialog2 = new Dialog(reader, tag, fromConnectionAddress);
//trunk.AddDialog2(tag, dialog2);
/////////////////////////////////////////////////////////////////////////////////
writer.WriteRequestLine(reader.Method, dialog1.RemoteUri);
//var msReceivedCid = fromConnectionAddress.ToLowerHexChars(serverTransactionId);
//writer.WriteVia(dialog1.Transport, dialog1.LocalEndPoint, TransactionId, msReceivedCid);
writer.WriteVia(dialog1.Transport, dialog1.LocalEndPoint, TransactionId);
for (int i = 0; i < reader.Count.HeaderCount; i++)
{
switch (reader.Headers[i].HeaderName)
{
case HeaderNames.MaxForwards:
writer.WriteMaxForwards((reader.MaxForwards == int.MinValue) ? 69 : reader.MaxForwards - 1);
break;
case HeaderNames.Contact:
writer.WriteContact(dialog1.LocalEndPoint, dialog1.Transport);
break;
case HeaderNames.To:
writer.WriteTo(dialog1.RemoteUri, dialog1.RemoteTag);
break;
case HeaderNames.From:
writer.WriteFrom(reader.From.AddrSpec.Value, tag);
break;
case HeaderNames.Authorization:
break;
default:
writer.WriteHeader(reader, i);
break;
case HeaderNames.Via:
via = reader.Headers[i].Value.DeepCopy();
break;
}
}
if (reader.ContentLength == int.MinValue)
writer.WriteContentLength(content.Count);
writer.WriteCustomHeaders();
writer.WriteCRLF();
writer.Write(content);
}
public static void Update(int currentConnectionId, ArraySegment<byte> header)
{
connectionId = currentConnectionId;
if (Value == null)
Value = new SipMessageReader();
Value.SetDefaultValue();
Value.Parse(header.Array, header.Offset, header.Count);
Value.SetArray(header.Array);
}
public IncomingMessage(ServerAsyncEventArgs e, SipMessageReader reader, ArraySegment<byte> content)
{
if (e.LocalEndPoint.Protocol != ServerProtocol.Udp)
throw new ArgumentException();
ConnectionAddresses = new ConnectionAddresses(Transports.Udp, e.LocalEndPoint,
new IPEndPoint(e.RemoteEndPoint.Address, e.RemoteEndPoint.Port), ServerAsyncEventArgs.AnyNewConnectionId);
Reader = reader;
Content = content;
Header = new ArraySegment<byte>(e.Buffer, e.Offset, e.BytesTransferred - content.Count);
}
public void SetUp()
{
{
var dfa = new SipMessageReader();
dfa.LoadTables(@"..\..\..\Server\dll\Sip.Message.dfa");
dfa.SetDefaultValue();
dfa.Parse(new byte[] { 0 }, 0, 1);
}
{
HttpMessageReader.LoadTables(@"..\..\..\Server\dll\");
var dfa = new HttpMessageReader();
dfa.SetDefaultValue();
dfa.Parse(new byte[] { 0 }, 0, 1);
}
}
public Binding(SipMessageReader reader, int contactIndex, int expires1, ConnectionAddresses connectionAddresses)
{
ConnectionAddresses = connectionAddresses;
int length =
reader.Contact[contactIndex].AddrSpec.Value.Length +
reader.Contact[contactIndex].SipInstance.Length +
reader.From.Epid.Length +
reader.CallId.Length;
bytes = new byte[length + 8 - length % 8];
marker1 = bytes.CopyFrom(reader.Contact[contactIndex].AddrSpec.Value, 0);
marker2 = bytes.CopyFrom(reader.Contact[contactIndex].SipInstance, marker1);
marker3 = bytes.CopyFrom(reader.From.Epid, marker2);
marker4 = bytes.CopyFrom(reader.CallId, marker3);
Update(reader.CSeq.Value, expires1);
}
private static ByteArrayPart GetDialogId(SipMessageReader message)
{
if (Dialog.HasValidId(message) == false)
return ByteArrayPart.Invalid;
int length = Dialog.GetIdLength(message);
if (dialogIdBytes == null || dialogIdBytes.Length < length)
dialogIdBytes = new byte[length];
var part = new ByteArrayPart()
{
Bytes = dialogIdBytes,
Begin = 0,
End = length,
};
Dialog.GenerateId(message, part.Bytes);
return part;
}
private int Calculate(SipMessageReader request, out int routeCount1)
{
int length =
request.CallId.Length +
// 8 +
request.From.Tag.Length +
request.To.AddrSpec.Value.Length +
request.From.AddrSpec.Value.Length +
request.Contact[0].AddrSpec.Value.Length +
request.From.Epid.Length;
routeCount1 = 0;
for (int i = 0; i < request.Count.HeaderCount; i++)
if (request.Headers[i].HeaderName == HeaderNames.RecordRoute)
{
length += request.Headers[i].Value.Length + 2;
routeCount1++;
}
return length;
}
public Dialog(SipMessageReader response, ConnectionAddresses connectionAddresses)
{
this.transport = connectionAddresses.Transport;
this.localEndPoint = connectionAddresses.LocalEndPoint;
this.remoteEndPoint = connectionAddresses.RemoteEndPoint;
localCseq = response.CSeq.Value;
remoteCseq = 0;
int length = Calculate(response, out routeCount) + response.To.Tag.Length;
bytes = new byte[length];
marker1 = bytes.CopyFrom(response.CallId, 0);
marker2 = bytes.CopyFrom(response.From.Tag, marker1);
marker3 = bytes.CopyFrom(response.To.Tag, marker2);
marker4 = bytes.CopyFrom(response.From.AddrSpec.Value, marker3);
marker5 = bytes.CopyFrom(response.To.AddrSpec.Value, marker4);
marker6 = bytes.CopyFrom(response.From.Epid, marker5);
markerN = bytes.CopyFrom(response.Contact[0].AddrSpec.Value, marker6);
CopyRecordRoute(response);
}
private readonly int remoteCseq; // why readonly ?!
public Dialog(SipMessageReader request, int localTag, ConnectionAddresses connectionAddresses)
{
this.transport = connectionAddresses.Transport;
this.localEndPoint = connectionAddresses.LocalEndPoint;
this.remoteEndPoint = connectionAddresses.RemoteEndPoint;
localCseq = 0;
remoteCseq = request.CSeq.Value;
int length = Calculate(request, out routeCount) + 8;
bytes = new byte[length];
marker1 = bytes.CopyFrom(request.CallId, 0);
HexEncoding.GetLowerHexChars(localTag, bytes, marker1);
marker2 = marker1 + 8;
marker3 = bytes.CopyFrom(request.From.Tag, marker2);
marker4 = bytes.CopyFrom(request.To.AddrSpec.Value, marker3);
marker5 = bytes.CopyFrom(request.From.AddrSpec.Value, marker4);
marker6 = bytes.CopyFrom(request.From.Epid, marker5);
markerN = bytes.CopyFrom(request.Contact[0].AddrSpec.Value, marker6);
CopyRecordRoute(request);
}
public void WriteToHeader(SipMessageReader reader, int index, ByteArrayPart epid1)
{
if (reader.To.Epid.IsNotEmpty || epid1.Length <= 0)
{
WriteHeader(reader, index);
}
else
{
Write(C.To, C.HCOLON);
int headerBegin = reader.Headers[index].Value.Begin;
toAddrspec = CreateRange(reader.To.AddrSpec.Value, headerBegin);
toTag = CreateRange(reader.To.Tag, headerBegin);
Write(reader.Headers[index].Value);
Write(C._epid_);
toEpid = new Range(end, epid1.Length);
Write(epid1);
Write(C.CRLF);
}
}
private void ParseSipMessage(string message)
{
var bytes = Encoding.UTF8.GetBytes(message);
sipExpected = new SipMessageReader();
sipExpected.SetDefaultValue();
int parsed = sipExpected.Parse(bytes, 0, bytes.Length);
sipExpected.SetArray(bytes);
if (sipExpected.ContentLength < 0)
sipExpected.ContentLength = 0;
sipHeader = message.Substring(0, parsed);
sipContent = message.Substring(parsed);
}
private void Validate(string messageText, bool addKeepAlive, int messagesCount, IEnumerable<int> splitSizes, bool detachBuffer, bool websocket)
{
var message = Encoding.UTF8.GetBytes(messageText);
var expected = new SipMessageReader();
expected.SetDefaultValue();
int parsed = expected.Parse(message, 0, message.Length);
expected.SetArray(message);
if (expected.ContentLength < 0)
expected.ContentLength = 0;
var expectedUri = expected.RequestUri.Value.ToString();
var content = Encoding.UTF8.GetString(message, parsed, message.Length - parsed);
if (addKeepAlive)
message = Encoding.UTF8.GetBytes("\r\n\r\n" + messageText + "\r\n\r\n\r\n\r\n\r\n\r\n");
var extra = new byte[0];
if (websocket)
extra = PrepareForWebsocket(message);
var stream = CreateStream(messagesCount, extra, message);
int headersLength = messageText.IndexOf("\r\n\r\n") + 4;
var headersText = messageText.Substring(0, headersLength);
int oldUsedBuffers = EventArgsManager.Created - EventArgsManager.Queued;
ServerAsyncEventArgs e = null;
using (var connection = new Connection())
using (var threads = new Threads(connection))
{
if (websocket)
connection.UpgradeToWebsocket();
foreach (int splitSize in splitSizes)
{
int realMessageCount = 0;
for (int offset = 0; offset < stream.Length; offset += splitSize)
{
var info = "Split by: " + splitSize + "; Message #: " + realMessageCount +
"\r\nMessage Sizes: " + message.Length + " " + (message.Length - content.Length) + " " + content.Length;
if (e == null)
e = EventArgsManager.Get();
e.BytesTransferred = Math.Min(splitSize, stream.Length - offset);
Buffer.BlockCopy(stream, offset, e.Buffer, e.Offset, e.BytesTransferred);
bool closeConnection;
for (bool repeat = true; repeat; )
{
//repeat = connection.Proccess(ref e, out closeConnection);
repeat = threads.Proccess(ref e, out closeConnection);
Assert.IsFalse(closeConnection, info);
if (connection.IsMessageReady)
{
var actualHeaders = Encoding.UTF8.GetString(connection.Header.Array, connection.Header.Offset, connection.Header.Count);
Assert.AreEqual(expected.Method, connection.Reader.Method, info);
Assert.AreEqual(expectedUri, connection.Reader.RequestUri.Value.ToString(), info);
Assert.AreEqual(headersLength, connection.Header.Count);
Assert.AreEqual(headersText, actualHeaders);
Assert.AreEqual(expected.ContentLength, connection.Content.Count);
if (expected.ContentLength > 0)
Assert.AreEqual(content, Encoding.UTF8.GetString(connection.Content.Array, connection.Content.Offset, connection.Content.Count), info);
BufferHandle handle = new BufferHandle();
if (detachBuffer)
handle = connection.Dettach(ref e);
connection.ResetState();
realMessageCount++;
if (detachBuffer)
handle.Free();
}
}
}
EventArgsManager.Put(ref e);
Assert.AreEqual(messagesCount, realMessageCount);
}
}
Assert.AreEqual(oldUsedBuffers, EventArgsManager.Created - EventArgsManager.Queued);
}
public void CopyViaToFromCallIdRecordRouteCSeq(SipMessageReader request, StatusCodes statusCode, ByteArrayPart localTag)
{
for (int i = 0; i < request.Count.HeaderCount; i++)
{
switch (request.Headers[i].HeaderName)
{
case HeaderNames.RecordRoute:
case HeaderNames.Via:
WriteHeader(request.Headers[i]);
break;
case HeaderNames.CallId:
WriteCallId(request.CallId);
break;
case HeaderNames.CSeq:
CSeq = request.CSeq.Value;
Method = request.CSeq.Method;
WriteHeader(request.Headers[i]);
break;
case HeaderNames.From:
Write(C.From__);
fromAddrspec = new Range(end + request.From.AddrSpec.Value.Begin -
request.Headers[i].Value.Begin, request.From.AddrSpec.Value.Length);
if (request.From.Tag.IsValid)
{
fromTag = new Range(end + request.From.Tag.Begin -
request.Headers[i].Value.Begin, request.From.Tag.Length);
}
if (request.From.Epid.IsValid)
{
fromEpid = new Range(end + request.From.Epid.Begin -
request.Headers[i].Value.Begin, request.From.Epid.Length);
}
Write(request.Headers[i].Value);
WriteCRLF();
break;
case HeaderNames.To:
Write(C.To__);
toAddrspec = new Range(end + request.To.AddrSpec.Value.Begin -
request.Headers[i].Value.Begin, request.To.AddrSpec.Value.Length);
if (request.To.Tag.IsValid)
{
toTag = new Range(end + request.To.Tag.Begin -
request.Headers[i].Value.Begin, request.To.Tag.Length);
}
Write(request.Headers[i].Value);
if (request.To.Tag.IsInvalid && localTag.IsValid && statusCode != StatusCodes.Trying && request.Method != Methods.Cancelm)
{
Write(C._tag_);
toTag = new Range(end, localTag.Length);
Write(localTag);
}
WriteCRLF();
break;
}
}
}
public void CopyViaToFromCallIdRecordRouteCSeq(SipMessageReader request, StatusCodes statusCode)
{
CopyViaToFromCallIdRecordRouteCSeq(request, statusCode, GenerateTag());
}
public void GenerateForwardedRequest(SipMessageWriter writer, SipMessageReader reader, ArraySegment<byte> content, ConnectionAddresses fromConnectionAddress, int serverTransactionId)
{
//dialog2 = new Dialog(reader, fromTag, fromConnectionAddress);
Dialog dialog1 = null;
if (HexEncoding.TryParseHex8(reader.To.Tag, out tag))
dialog1 = trunk.GetDialog1(tag);
else
tag = DialogManager.NewLocalTag();
dialog2 = new Dialog(reader, tag, fromConnectionAddress);
trunk.AddDialog2(tag, dialog2);
/////////////////////////////////////////////////////////////////////////////////
writer.WriteRequestLine(reader.Method, binding.AddrSpec);
//var msReceivedCid = fromConnectionAddress.ToLowerHexChars(serverTransactionId);
//writer.WriteVia(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint, TransactionId, msReceivedCid);
writer.WriteVia(binding.ConnectionAddresses.Transport, binding.ConnectionAddresses.LocalEndPoint, TransactionId);
for (int i = 0; i < reader.Count.HeaderCount; i++)
{
switch (reader.Headers[i].HeaderName)
{
case HeaderNames.MaxForwards:
writer.WriteMaxForwards((reader.MaxForwards == int.MinValue) ? 69 : reader.MaxForwards - 1);
break;
case HeaderNames.Contact:
writer.WriteContact(binding.ConnectionAddresses.LocalEndPoint, binding.ConnectionAddresses.Transport);
break;
case HeaderNames.To:
writer.WriteTo(trunk.ForwardCallToUri, (dialog1 != null) ? dialog1.RemoteTag : ByteArrayPart.Invalid);
break;
case HeaderNames.From:
writer.WriteFrom(reader.From.AddrSpec.Value, tag);
break;
case HeaderNames.Authorization:
break;
default:
writer.WriteHeader(reader, i);
break;
case HeaderNames.Via:
via = reader.Headers[i].Value.DeepCopy();
break;
}
}
if (reader.ContentLength == int.MinValue)
writer.WriteContentLength(content.Count);
writer.WriteCustomHeaders();
writer.WriteCRLF();
writer.Write(content);
}
public bool CanFork(SipMessageReader response)
{
return false;
}
private void GenerateRequest(SipMessageWriter writer, SipMessageReader reader, Methods method)
{
writer.WriteRequestLine(method, trunk.ForwardCallToUri);
writer.WriteVia(ToConnectionAddresses.Transport, ToConnectionAddresses.LocalEndPoint, TransactionId);
for (int i = 0; i < reader.Count.HeaderCount; i++)
{
switch (reader.Headers[i].HeaderName)
{
case HeaderNames.From:
case HeaderNames.To:
case HeaderNames.CallId:
writer.WriteHeader(reader, i);
break;
}
}
writer.WriteMaxForwards(70);
writer.WriteCseq(reader.CSeq.Value, method);
writer.WriteContentLength(0);
writer.WriteCustomHeaders();
writer.WriteCRLF();
}
public void CopyViaToFromCallIdRecordRouteCSeq(SipMessageReader request, StatusCodes statusCode, ByteArrayPart localTag)
{
for (int i = 0; i < request.Count.HeaderCount; i++)
{
HeaderNames headerName = request.Headers[i].HeaderName;
switch (headerName)
{
case HeaderNames.From:
{
base.Write(SipMessageWriter.C.From__);
int arg_111_0 = this.end + request.From.AddrSpec.Value.Begin - request.Headers[i].Value.Begin;
BeginEndIndex value = request.From.AddrSpec.Value;
this.fromAddrspec = new SipMessageWriter.Range(arg_111_0, value.Length);
if (request.From.Tag.IsValid)
{
this.fromTag = new SipMessageWriter.Range(this.end + request.From.Tag.Begin - request.Headers[i].Value.Begin, request.From.Tag.Length);
}
if (request.From.Epid.IsValid)
{
this.fromEpid = new SipMessageWriter.Range(this.end + request.From.Epid.Begin - request.Headers[i].Value.Begin, request.From.Epid.Length);
}
base.Write(request.Headers[i].Value);
base.WriteCRLF();
break;
}
case HeaderNames.CallId:
base.WriteCallId(request.CallId);
break;
default:
switch (headerName)
{
case HeaderNames.To:
{
base.Write(SipMessageWriter.C.To__);
int arg_24F_0 = this.end + request.To.AddrSpec.Value.Begin - request.Headers[i].Value.Begin;
BeginEndIndex value2 = request.To.AddrSpec.Value;
this.toAddrspec = new SipMessageWriter.Range(arg_24F_0, value2.Length);
if (request.To.Tag.IsValid)
{
this.toTag = new SipMessageWriter.Range(this.end + request.To.Tag.Begin - request.Headers[i].Value.Begin, request.To.Tag.Length);
}
base.Write(request.Headers[i].Value);
if (request.To.Tag.IsInvalid && localTag.IsValid && statusCode != StatusCodes.Trying && request.Method != Methods.Cancelm)
{
base.Write(SipMessageWriter.C._tag_);
this.toTag = new SipMessageWriter.Range(this.end, localTag.Length);
base.Write(localTag);
}
base.WriteCRLF();
goto IL_329;
}
case HeaderNames.AllowEvents:
goto IL_329;
case HeaderNames.Via:
break;
case HeaderNames.CSeq:
base.CSeq = request.CSeq.Value;
base.Method = request.CSeq.Method;
base.WriteHeader(request.Headers[i]);
goto IL_329;
default:
if (headerName != HeaderNames.RecordRoute)
{
goto IL_329;
}
break;
}
base.WriteHeader(request.Headers[i]);
break;
}
IL_329 :;
}
}
private void DestroyReaders(SipMessageReader[] readers, int skip, bool validate)
{
for (int i = 0; i < readers.Length; i++)
Assert.IsFalse(SipMessageReader.IsArraySlotAvailable(readers[i].Index), "Slot #" + readers[i].Index);
for (int i = skip; i < readers.Length; i++)
{
int index = readers[i].Index;
readers[i].Dispose();
if (validate)
Assert.IsTrue(SipMessageReader.IsArraySlotAvailable(index), "Slot #" + index);
}
}
private SipMessageReader[] CreateReaders(int qty)
{
int expectedIndex = -1;
var readers = new SipMessageReader[qty];
for (int i = 0; i < qty; i++, expectedIndex += (expectedIndex >= 0) ? 1 : 0)
{
readers[i] = new SipMessageReader();
if (expectedIndex >= 0)
Assert.AreEqual(expectedIndex, readers[i].Index);
readers[i].SetDefaultValue();
}
return readers;
}
public void WriteResponse(SipMessageReader request, StatusCodes statusCode)
{
WriteResponse(request, statusCode, GenerateTag());
}