public MqttUnexpectedDisconnectReceivedException(MqttDisconnectPacket disconnectPacket)
: base($"Unexpected DISCONNECT (Reason code={disconnectPacket.ReasonCode}) received.")
{
ReasonCode = disconnectPacket.ReasonCode;
SessionExpiryInterval = disconnectPacket.Properties?.SessionExpiryInterval;
ReasonString = disconnectPacket.Properties?.ReasonString;
ServerReference = disconnectPacket.Properties?.ServerReference;
UserProperties = disconnectPacket.Properties?.UserProperties;
}
Task ProcessReceivedDisconnectPacket(MqttDisconnectPacket disconnectPacket)
{
_disconnectReason = (MqttClientDisconnectReason)(disconnectPacket.ReasonCode ?? MqttDisconnectReasonCode.NormalDisconnection);
// Also dispatch disconnect to waiting threads to generate a proper exception.
_packetDispatcher.FailAll(new MqttUnexpectedDisconnectReceivedException(disconnectPacket));
return(DisconnectInternalAsync(_packetReceiverTask, null, null));
}
Task ProcessReceivedDisconnectPacket(MqttDisconnectPacket disconnectPacket)
{
_disconnectReason = (MqttClientDisconnectReason)(disconnectPacket.ReasonCode ?? MqttDisconnectReasonCode.NormalDisconnection);
// Also dispatch disconnect to waiting threads to generate a proper exception.
_packetDispatcher.Dispatch(disconnectPacket);
if (!DisconnectIsPending())
{
return(DisconnectInternalAsync(_packetReceiverTask, null, null));
}
return(PlatformAbstractionLayer.CompletedTask);
}
byte EncodeDisconnectPacket(MqttDisconnectPacket packet)
{
_bufferWriter.WriteByte((byte)packet.ReasonCode);
_propertiesWriter.WriteServerReference(packet.ServerReference);
_propertiesWriter.WriteReasonString(packet.ReasonString);
_propertiesWriter.WriteSessionExpiryInterval(packet.SessionExpiryInterval);
_propertiesWriter.WriteUserProperties(packet.UserProperties);
_propertiesWriter.WriteTo(_bufferWriter);
_propertiesWriter.Reset();
return(MqttBufferWriter.BuildFixedHeader(MqttControlPacketType.Disconnect));
}
public MqttDisconnectPacket CreateDisconnectPacket(MqttClientDisconnectOptions options)
{
var packet = new MqttDisconnectPacket();
if (options == null)
{
packet.ReasonCode = MqttDisconnectReasonCode.NormalDisconnection;
}
else
{
packet.ReasonCode = (MqttDisconnectReasonCode)options.ReasonCode;
}
return(packet);
}
private static MqttBasePacket DecodeDisconnectPacket(IMqttPacketBodyReader body)
{
ThrowIfBodyIsEmpty(body);
var packet = new MqttDisconnectPacket
{
ReasonCode = (MqttDisconnectReasonCode)body.ReadByte()
};
var propertiesReader = new MqttV500PropertiesReader(body);
while (propertiesReader.MoveNext())
{
if (packet.Properties == null)
{
packet.Properties = new MqttDisconnectPacketProperties();
}
if (propertiesReader.CurrentPropertyId == MqttPropertyId.SessionExpiryInterval)
{
packet.Properties.SessionExpiryInterval = propertiesReader.ReadSessionExpiryInterval();
}
else if (propertiesReader.CurrentPropertyId == MqttPropertyId.ReasonString)
{
packet.Properties.ReasonString = propertiesReader.ReadReasonString();
}
else if (propertiesReader.CurrentPropertyId == MqttPropertyId.ServerReference)
{
packet.Properties.ServerReference = propertiesReader.ReadServerReference();
}
else if (propertiesReader.CurrentPropertyId == MqttPropertyId.UserProperty)
{
if (packet.Properties.UserProperties == null)
{
packet.Properties.UserProperties = new List <MqttUserProperty>();
}
propertiesReader.AddUserPropertyTo(packet.Properties.UserProperties);
}
else
{
propertiesReader.ThrowInvalidPropertyIdException(typeof(MqttDisconnectPacket));
}
}
return(packet);
}
public void Serialize_Full_MqttDisconnectPacket_V500()
{
var disconnectPacket = new MqttDisconnectPacket
{
ReasonCode = MqttDisconnectReasonCode.QuotaExceeded,
ReasonString = "ReasonString",
ServerReference = "ServerReference",
SessionExpiryInterval = 234,
UserProperties = new List <MqttUserProperty>
{
new MqttUserProperty("Foo", "Bar")
}
};
var deserialized = MqttPacketSerializationHelper.EncodeAndDecodePacket(disconnectPacket, MqttProtocolVersion.V500);
Assert.AreEqual(disconnectPacket.ReasonCode, deserialized.ReasonCode);
Assert.AreEqual(disconnectPacket.ReasonString, deserialized.ReasonString);
Assert.AreEqual(disconnectPacket.ServerReference, deserialized.ServerReference);
Assert.AreEqual(disconnectPacket.SessionExpiryInterval, deserialized.SessionExpiryInterval);
CollectionAssert.AreEqual(disconnectPacket.UserProperties, deserialized.UserProperties);
}
public void Serialize_Full_MqttDisconnectPacket_V311()
{
var disconnectPacket = new MqttDisconnectPacket
{
ReasonCode = MqttDisconnectReasonCode.NormalDisconnection, // MQTTv3 has no other values than this.
ReasonString = "ReasonString",
ServerReference = "ServerReference",
SessionExpiryInterval = 234,
UserProperties = new List <MqttUserProperty>
{
new MqttUserProperty("Foo", "Bar")
}
};
var deserialized = MqttPacketSerializationHelper.EncodeAndDecodePacket(disconnectPacket, MqttProtocolVersion.V311);
Assert.AreEqual(disconnectPacket.ReasonCode, deserialized.ReasonCode);
Assert.AreEqual(null, deserialized.ReasonString); // Not supported in v3.1.1
Assert.AreEqual(null, deserialized.ServerReference); // Not supported in v3.1.1
Assert.AreEqual(0U, deserialized.SessionExpiryInterval); // Not supported in v3.1.1
CollectionAssert.AreEqual(null, deserialized.UserProperties);
}
private static byte EncodeDisconnectPacket(MqttDisconnectPacket packet, IMqttPacketWriter packetWriter)
{
if (!packet.ReasonCode.HasValue)
{
ThrowReasonCodeNotSetException();
}
packetWriter.Write((byte)packet.ReasonCode.Value);
var propertiesWriter = new MqttV500PropertiesWriter();
if (packet.Properties != null)
{
propertiesWriter.WriteServerReference(packet.Properties.ServerReference);
propertiesWriter.WriteReasonString(packet.Properties.ReasonString);
propertiesWriter.WriteSessionExpiryInterval(packet.Properties.SessionExpiryInterval);
propertiesWriter.WriteUserProperties(packet.Properties.UserProperties);
}
propertiesWriter.WriteTo(packetWriter);
return(MqttPacketWriter.BuildFixedHeader(MqttControlPacketType.Disconnect));
}
MqttPacket DecodeDisconnectPacket(ArraySegment <byte> body)
{
ThrowIfBodyIsEmpty(body);
_bufferReader.SetBuffer(body.Array, body.Offset, body.Count);
var packet = new MqttDisconnectPacket
{
ReasonCode = (MqttDisconnectReasonCode)_bufferReader.ReadByte()
};
var propertiesReader = new MqttV5PropertiesReader(_bufferReader);
while (propertiesReader.MoveNext())
{
if (propertiesReader.CurrentPropertyId == MqttPropertyId.SessionExpiryInterval)
{
packet.SessionExpiryInterval = propertiesReader.ReadSessionExpiryInterval();
}
else if (propertiesReader.CurrentPropertyId == MqttPropertyId.ReasonString)
{
packet.ReasonString = propertiesReader.ReadReasonString();
}
else if (propertiesReader.CurrentPropertyId == MqttPropertyId.ServerReference)
{
packet.ServerReference = propertiesReader.ReadServerReference();
}
else
{
propertiesReader.ThrowInvalidPropertyIdException(typeof(MqttDisconnectPacket));
}
}
packet.UserProperties = propertiesReader.CollectedUserProperties;
return(packet);
}
private static byte Serialize(MqttDisconnectPacket packet, MqttPacketWriter writer)
{
return(SerializeEmptyPacketAsync(MqttControlPacketType.Disconnect, writer));
}
private Task SerializeAsync(MqttDisconnectPacket packet, IMqttCommunicationChannel destination)
{
return(SerializeEmptyPacketAsync(MqttControlPacketType.Disconnect, destination));
}
