internal void PublishReceived(IMqttSession session, MqttPublishMessage publishMessage)
{
if (publishMessage.Header.Qos == MqttQos.BestEffort && session.HasQoS2(publishMessage.VariableHeader.MessageIdentifier))
{
var pubRec = new MqttPublishReceivedMessage()
.WithMessageIdentifier(publishMessage.VariableHeader.MessageIdentifier);
session.Write(pubRec);
}
if (publishMessage.Header.Retain)
{
this.storageProvider.PutRetained(publishMessage.VariableHeader.TopicName, publishMessage.Payload.Message.ToArray());
}
PublishMessage(GetSubscriptions(publishMessage.VariableHeader.TopicName), publishMessage.VariableHeader.TopicName, publishMessage.Payload.Message.ToArray());
switch (publishMessage.Header.Qos)
{
case MqttQos.AtLeastOnce:
var puback = new MqttPublishAckMessage().WithMessageIdentifier(publishMessage.VariableHeader.MessageIdentifier);
session.Write(puback);
break;
case MqttQos.AtMostOnce:
session.StoreQoS2(publishMessage.VariableHeader.MessageIdentifier);
var pubRec = new MqttPublishReleaseMessage().WithMessageIdentifier(publishMessage.VariableHeader.MessageIdentifier);
session.Write(pubRec);
break;
case MqttQos.BestEffort:
default:
break;
}
}
internal async Task PublishReceived(IMqttSession session, Stream stream, PublishMessage publishMessage)
{
await publishMessage.ReadPayloadAsync();
//If we've already received the QoS 2 message and forwarded it, then just send the PubRec
if (publishMessage.QoS == QoS.AtMostOnce && await session.HasQoS2(publishMessage.PacketId.Value))
{
await new PubRecMessage(publishMessage.PacketId.Value).Write(stream);
return;
}
if (publishMessage.Retain)
{
await storageProvider.PutRetained(publishMessage.Topic, publishMessage.Payload);
}
await PublishMessage(await sessionProvider.GetSubscriptions(publishMessage.Topic), publishMessage.Topic, publishMessage.Payload);
switch (publishMessage.QoS)
{
case QoS.AtLeastOnce:
await new PubAckMessage(publishMessage.PacketId.Value).Write(stream);
break;
case QoS.AtMostOnce:
await session.StoreQoS2(publishMessage.PacketId.Value);
await new PubRecMessage(publishMessage.PacketId.Value).Write(stream);
break;
case QoS.BestEffort:
default:
break;
}
}
