public void got_half_optional_text_in_first_send()
{
int breakPoint = 17;
var buffer = new byte[]
{
3, //major
1, //minor
0, //flags
4, //id length
(byte)'d', (byte)'a', (byte)'y', (byte)'1', //id
0, 4, //optional len (network byte order)
(byte)'j', (byte)'s', (byte)'o', (byte)'1', //optional,
0, 4, //optional len (network byte order)
(byte)'j', (byte)'s', (byte)'o', (byte)'n', //optional,
};
var offset = 0;
var count1 = breakPoint;
var count2 = buffer.Length - breakPoint;
var sut = new HandshakeFrame();
sut.Read(buffer, ref offset, ref count1);
sut.Read(buffer, ref breakPoint, ref count2);
sut.OptionalExtensions[0].Name.Should().Be("json");
}
public void got_only_major_in_first_send()
{
var buffer = new byte[]
{
3, //major
1, //minor
0, //flags
4, //id length
(byte)'d', (byte)'a', (byte)'y', (byte)'1', //id
0, 4, //optional len (network byte order)
(byte)'j', (byte)'s', (byte)'o', (byte)'1', //optional,
0, 4, //optional len (network byte order)
(byte)'j', (byte)'s', (byte)'o', (byte)'n', //optional,
};
var offset = 0;
var count = 1;
var sut = new HandshakeFrame();
var actual1 = sut.Read(buffer, ref offset, ref count);
count = buffer.Length - 1;
var actual2 = sut.Read(buffer, ref offset, ref count);
actual1.Should().Be(false);
actual2.Should().Be(true);
sut.OptionalExtensions[0].Name.Should().Be("json");
}
public void frame_Should_be_able_to_parse_multiple_incoming_buffers_if_reseted_in_between()
{
var bufferManager = new BufferManager(8192, 1);
var context = new WriterContext(bufferManager);
var buffer = bufferManager.Dequeue();
bufferManager.Enqueue(buffer);
var sut = new HandshakeFrame();
sut.Identity = "Client";
sut.OptionalExtensions = new[] { new HandshakeExtension("json"), new HandshakeExtension("ack") };
sut.RequiredExtensions = new[] { new HandshakeExtension("dotnet") };
sut.VersionMajor = 1;
sut.Write(context);
sut.ResetWrite(context);
var offset = buffer.Offset;
var len = context.GetPackets()[0].Count;
sut.Read(buffer.Array, ref offset, ref len);
sut.ResetRead();
offset = buffer.Offset;
len = context.GetPackets()[0].Count;
sut.Read(buffer.Array, ref offset, ref len);
len.Should().Be(0);
}
public void got_required_but_no_optional()
{
var buffer = new byte[]
{
3, //major
1, //minor
0, //flags
4, //id length
(byte)'d', (byte)'a', (byte)'y', (byte)'1', //id
0, 4, //required len (network byte order)
(byte)'j', (byte)'s', (byte)'o', (byte)'n', //required,
0, 0 //optional length
};
var offset = 0;
var count = buffer.Length;
var sut = new HandshakeFrame();
var actual = sut.Read(buffer, ref offset, ref count);
actual.Should().Be(true);
sut.Flags.Should().Be(0);
sut.Identity.Should().Be("day1");
sut.RequiredExtensions[0].Name.Should().Be("json");
sut.OptionalExtensions.Should().BeEmpty();
}
public void frame_with_extension_properties_can_be_codec()
{
var bufferManager = new BufferManager(8192, 1);
var context = new WriterContext(bufferManager);
var buffer = bufferManager.Dequeue();
bufferManager.Enqueue(buffer);
var sut = new HandshakeFrame();
sut.Identity = "Client";
sut.OptionalExtensions = new[] { new HandshakeExtension("json", new Dictionary <string, string> {
{ "Key", "Value" }
}), new HandshakeExtension("ack") };
sut.RequiredExtensions = new[] { new HandshakeExtension("dotnet") };
sut.VersionMajor = 1;
sut.Write(context);
sut.ResetWrite(context);
var offset = buffer.Offset;
var receiveFrame = new HandshakeFrame();
var len = context.GetPackets()[0].Count;
receiveFrame.Read(buffer.Array, ref offset, ref len);
receiveFrame.OptionalExtensions[0].Properties["Key"].Should().Be("Value");
}
public void send_a_frame()
{
var service = Substitute.For <IExtensionService>();
var mgr = new BufferManager(100, 10);
var isDisconnected = false;
using (var helper = new ClientServerHelper()) // wrap for cleanup
{
var sut = new SharpMessaging.Connection.Connection("adam", service, true, mgr);
sut.Disconnected += (o, error) => isDisconnected = true;
sut.Assign(helper.Server);
sut.Send(new HandshakeFrame()
{
Identity = "A"
});
Thread.Sleep(100);
byte[] buffer = new byte[65535];
var bytesRead = helper.Client.Receive(buffer, SocketFlags.None);
var frame = new HandshakeFrame();
var offset = 0;
int len = bytesRead;
frame.Read(buffer, ref offset, ref len);
frame.Identity.Should().Be("A");
}
}
private void ProcessReceivedBytes(byte[] buffer, int offset, int bytesTransferred)
{
while (bytesTransferred > 0)
{
if (!_handshakeCompleted)
{
var isCompleted = _handshakeFrame.Read(buffer, ref offset, ref bytesTransferred);
if (!isCompleted)
{
return;
}
HandshakeReceived(this, new HandshakeFrameReceivedEventArgs(_handshakeFrame));
_handshakeFrame.ResetRead();
continue;
}
switch (_frameType)
{
case FrameType.Unknown:
var flags = (FrameFlags)buffer[offset];
if ((flags & FrameFlags.ExtensionFrame) != 0)
{
_frameType = FrameType.Extension;
}
else if ((flags & FrameFlags.CommandFrame) != 0)
{
_frameType = FrameType.Command;
}
else
{
_frameType = FrameType.Message;
}
//do not increase offset, let the frame handle the flags.
//only peek it to be able to switch state
break;
case FrameType.Message:
var isCompleted = _inboundMessage.Read(buffer, ref offset, ref bytesTransferred);
if (isCompleted)
{
MessageFrameReceived(_inboundMessage);
_inboundMessage.ResetRead();
_frameType = FrameType.Unknown;
}
break;
case FrameType.Extension:
var isCompleted2 = _extensionFrameProcessor.Read(buffer, ref offset, ref bytesTransferred);
if (isCompleted2)
{
_frameType = FrameType.Unknown;
}
break;
}
}
}
