void OnFrame(ushort channel, ulong code, List fields, ByteBuffer payload)
{
switch (code)
{
case 0x10ul: // open
Fx.DebugPrint(false, channel, "open", fields, "container-id", "host-name", "max-frame-size", "channel-max", "idle-time-out");
this.state |= OpenReceived;
// process open.idle-time-out if exists: final value is determined by the min of the local and the remote values
uint remoteValue = uint.MaxValue;
if (fields.Count >= 5 && fields[4] != null)
{
remoteValue = (uint)fields[4];
}
uint timeout = this.idleTimeout < remoteValue ? this.idleTimeout : remoteValue;
if (timeout < uint.MaxValue)
{
timeout -= 5000;
timeout = timeout > MaxIdleTimeout ? MaxIdleTimeout : timeout;
this.heartBeatTimer = new Timer(onHeartBeatTimer, this, (int)timeout, (int)timeout);
}
break;
case 0x11ul: // begin
Fx.DebugPrint(false, channel, "begin", fields, "remote-channel", "next-outgoing-id", "incoming-window", "outgoing-window", "handle-max");
this.nextIncomingId = (uint)fields[1];
this.outWindow = (uint)fields[2];
this.state |= BeginReceived;
break;
case 0x12ul: // attach
{
Fx.DebugPrint(false, channel, "attach", fields, "name", "handle", "role", "snd-mode", "rcv-mode", "source", "target");
Link link = null;
uint remoteHandle = (uint)fields[1];
Fx.AssertAndThrow(ErrorCode.ClientInvalidHandle, remoteHandle < this.links.Length);
lock (this)
{
for (int i = 0; i < this.links.Length; i++)
{
if (this.links[i] != null && this.links[i].Name.Equals(fields[0]))
{
link = this.links[i];
int index = (int)~link.RemoteHandle;
Fx.AssertAndThrow(ErrorCode.ClientInvalidHandle, index == i);
if (index != (int)remoteHandle)
{
Fx.AssertAndThrow(ErrorCode.ClientHandlInUse, this.links[(int)remoteHandle] == null);
this.links[(int)remoteHandle] = link;
this.links[i] = null;
}
break;
}
}
}
Fx.AssertAndThrow(ErrorCode.ClientLinkNotFound, link != null);
link.RemoteHandle = remoteHandle;
link.State |= AttachReceived;
link.OnAttach(fields);
break;
}
case 0x13ul: // flow
{
Fx.DebugPrint(false, channel, "flow", fields, "next-in-id", "in-window", "next-out", "out-window", "handle", "dc", "credit");
uint nextIncomingId = (uint)fields[0];
uint incomingWindow = (uint)fields[1];
lock (this)
{
this.outWindow = incomingWindow < uint.MaxValue ?
nextIncomingId + incomingWindow - this.nextOutgoingId :
uint.MaxValue;
}
if (fields[4] != null)
{
Link link = this.links[(uint)fields[4]];
Fx.AssertAndThrow(ErrorCode.ClientLinkNotFound, link != null);
link.OnFlow(fields);
}
break;
}
case 0x14ul: // transfer
{
lock (this)
{
this.nextOutgoingId++;
if (--this.inWindow == 0)
{
this.inWindow = DefaultWindowSize;
List flow = new List()
{
this.nextIncomingId, this.inWindow, this.nextOutgoingId, this.outWindow
};
this.WriteFrame(0, 0, 0x13, flow);
Fx.DebugPrint(true, 0, "flow", flow, "next-in-id", "in-window", "next-out", "out-window", "handle", "dc", "credit");
}
}
Link link = this.links[(uint)fields[0]];
Fx.AssertAndThrow(ErrorCode.ClientLinkNotFound, link != null);
((Receiver)link).OnTransfer(fields, payload);
break;
}
case 0x15ul: // disposition
{
Fx.DebugPrint(false, channel, "disposition", fields, "role", "first", "last");
bool role = (bool)fields[0];
uint first = (uint)fields[1];
uint last = fields[2] == null ? first : (uint)fields[2];
for (int i = 0; i < this.links.Length; i++)
{
Link link = this.links[i];
if (link != null && role != link.Role)
{
link.OnDisposition(first, last, fields[4] as DescribedValue);
}
}
break;
}
case 0x16ul: // detach
{
Fx.DebugPrint(false, channel, "detach", fields, "handle");
Link link = this.links[(uint)fields[0]];
Fx.AssertAndThrow(ErrorCode.ClientLinkNotFound, link != null);
link.State |= DetachReceived;
if ((link.State & DetachSent) == 0)
{
this.CloseLink(link);
this.RaiseErrorEvent(link, GetError(fields, 2));
}
break;
}
case 0x17ul: // end
Fx.DebugPrint(false, channel, "end", null);
this.state |= EndReceived;
if ((this.state & EndSent) == 0)
{
this.WriteFrame(0, 0, 0x17ul, new List());
Fx.DebugPrint(true, channel, "end", null);
this.ClearLinks();
}
break;
case 0x18ul: // close
Fx.DebugPrint(false, channel, "close", null);
this.state |= CloseReceived;
if ((this.state & CloseSent) == 0)
{
this.Close();
this.RaiseErrorEvent(null, GetError(fields, 0));
}
break;
default:
Fx.AssertAndThrow(ErrorCode.ClientInvalidCodeOnFrame, false);
break;
}
}
/// <summary>
/// Establish a connection and a session for the client.
/// </summary>
/// <param name="host">The network host name or IP address to connect.</param>
/// <param name="port">The port to connect.</param>
/// <param name="useSsl">If true, use secure socket.</param>
/// <param name="userName">If set, the user name for authentication.</param>
/// <param name="password">If set, the password for authentication.</param>
public void Connect(string host, int port, bool useSsl, string userName, string password)
{
this.transport = Connect(host, port, useSsl);
byte[] header = new byte[8] {
(byte)'A', (byte)'M', (byte)'Q', (byte)'P', 0, 1, 0, 0
};
byte[] retHeader;
if (userName != null)
{
header[4] = 3;
this.transport.Write(header, 0, 8);
Fx.DebugPrint(true, 0, "AMQP", new List {
string.Concat(header[5], header[6], header[7])
}, header[4]);
byte[] b1 = Encoding.UTF8.GetBytes(userName);
byte[] b2 = Encoding.UTF8.GetBytes(password ?? string.Empty);
byte[] b = new byte[1 + b1.Length + 1 + b2.Length];
Array.Copy(b1, 0, b, 1, b1.Length);
Array.Copy(b2, 0, b, b1.Length + 2, b2.Length);
List saslInit = new List()
{
new Symbol("PLAIN"), b
};
this.WriteFrame(1, 0, 0x41, saslInit);
Fx.DebugPrint(true, 0, "sasl-init", saslInit, "mechanism");
this.transport.Flush();
retHeader = this.ReadFixedSizeBuffer(8);
Fx.DebugPrint(false, 0, "AMQP", new List {
string.Concat(retHeader[5], retHeader[6], retHeader[7])
}, retHeader[4]);
Fx.AssertAndThrow(ErrorCode.ClientInitializeHeaderCheckFailed, AreHeaderEqual(header, retHeader));
List body = this.ReadFrameBody(1, 0, 0x40);
Fx.DebugPrint(false, 0, "sasl-mechanisms", body, "server-mechanisms");
Fx.AssertAndThrow(ErrorCode.ClientInitializeWrongBodyCount, body.Count > 0);
Symbol[] mechanisms = GetSymbolMultiple(body[0]);
Fx.AssertAndThrow(ErrorCode.ClientInitializeWrongSymbol, Array.IndexOf(mechanisms, new Symbol("PLAIN")) >= 0);
body = this.ReadFrameBody(1, 0, 0x44);
Fx.AssertAndThrow(ErrorCode.ClientInitializeWrongBodyCount, body.Count > 0);
Fx.DebugPrint(false, 0, "sasl-outcome", body, "code");
Fx.AssertAndThrow(ErrorCode.ClientInitializeSaslFailed, body[0].Equals((byte)0)); // sasl-outcome.code = OK
header[4] = 0;
}
this.transport.Write(header, 0, 8);
Fx.DebugPrint(true, 0, "AMQP", new List {
string.Concat(header[5], header[6], header[7])
}, header[4]);
// perform open
this.state |= OpenSent;
var open = new List()
{
Guid.NewGuid().ToString(), this.hostName ?? host, MaxFrameSize, (ushort)0
};
this.WriteFrame(0, 0, 0x10, open);
Fx.DebugPrint(true, 0, "open", open, "container-id", "host-name", "max-frame-size", "channel-max", "idle-time-out");
// perform begin
this.state |= BeginSent;
var begin = new List()
{
null, this.nextOutgoingId, this.inWindow, this.outWindow, (uint)(this.links.Length - 1)
};
this.WriteFrame(0, 0, 0x11, begin);
Fx.DebugPrint(true, 0, "begin", begin, "remote-channel", "next-outgoing-id", "incoming-window", "outgoing-window", "handle-max");
retHeader = this.ReadFixedSizeBuffer(8);
Fx.DebugPrint(false, 0, "AMQP", new List {
string.Concat(retHeader[5], retHeader[6], retHeader[7])
}, retHeader[4]);
Fx.AssertAndThrow(ErrorCode.ClientInitializeHeaderCheckFailed, AreHeaderEqual(header, retHeader));
new Thread(this.PumpThread).Start();
}
