void Client_MqttMsgSubscribeReceived(object sender, MqttMsgSubscribeEventArgs e)
{
MqttClient client = (MqttClient)sender;
for (int i = 0; i < e.Topics.Length; i++)
{
// TODO : business logic to grant QoS levels based on some conditions ?
// now the broker granted the QoS levels requested by client
// subscribe client for each topic and QoS level requested
this.subscriberManager.Subscribe(e.Topics[i], e.QoSLevels[i], client);
}
try
{
// send SUBACK message to the client
client.Suback(e.MessageId, e.QoSLevels);
for (int i = 0; i < e.Topics.Length; i++)
{
// publish retained message on the current subscription
this.publisherManager.PublishRetaind(e.Topics[i], client.ClientId);
}
}
catch (MqttCommunicationException)
{
this.CloseClient(client);
}
}
void Client_MqttMsgSubscribeReceived(object sender, MqttMsgSubscribeEventArgs e)
{
MqttClient client = (MqttClient)sender;
// Since a client may subscribe to multiple topics, we must check each one
var topicAuth = new Dictionary <string, bool>();
for (int i = 0; i < e.Topics.Length; i++)
{
// Authenticate this client & topic.
var verified = this.uacManager.PubSubAuthentication(false, client.ClientId, e.Topics[i]);
topicAuth[e.Topics[i]] = verified;
if (verified)
{
// TODO : business logic to grant QoS levels based on some conditions ?
// now the broker granted the QoS levels requested by client
// subscribe client for each topic and QoS level requested
this.subscriberManager.Subscribe(e.Topics[i], e.QoSLevels[i], client);
}
}
bool closeClient = false;
try
{
// If any have been allowed, send the suback
if (topicAuth.Any(x => x.Value))
{
// send SUBACK message to the client
client.Suback(e.MessageId, e.QoSLevels);
for (int i = 0; i < e.Topics.Length; i++)
{
// Send any retained message to the subscriber if verified
var verified = topicAuth[e.Topics[i]];
if (verified)
{
// publish retained message on the current subscription
this.publisherManager.PublishRetaind(e.Topics[i], client.ClientId);
}
}
}
else
{
closeClient = true;
}
}
catch (MqttCommunicationException)
{
closeClient = true;
}
if (closeClient)
{
this.CloseClient(client);
}
}
void Client_MqttMsgSubscribeReceived(object sender, MqttMsgSubscribeEventArgs e)
{
MqttClient client = (MqttClient)sender;
//client.Subscribe(e.Topics, e.QoSLevels);
int i = 0;
//for (int i = 0; i < e.Topics.Length; i++)
//{
commBroker = new CommBroker();
commBroker.connect(e.Topics[i]);
if (!commBroker.connected)
{
throw new Exception("Unable to connect the broker for subscribing message");
}
commBroker.disable_heartbeat = true;
MqttCommon.LogMessageToFile("Subscribed to:" + e.Topics[i].Replace("/", ".").Replace("+", "*").ToString());
MqttCommon.LogMessageToFile("Topics Subscribed :" + e.Topics.Length.ToString());
Subscription subscription = commBroker.new_subscription(e.Topics[i].Replace("/", ".").Replace("+", "*"), string.Empty, (message, context) =>
{
client.Publish(message.subject.Replace(".", "/"), Convert.FromBase64String(message.data.ToString())); // System.Text.Encoding.UTF8.GetBytes(message.data.ToString()));
Console.WriteLine("Message Received");
MqttCommon.LogMessageToFile("Message Received");
Console.WriteLine("From Topic:" + message.subject.Replace(".", "/") + ". Data:" + message.data.ToString());
MqttCommon.LogMessageToFile("From Topic:" + message.subject.Replace(".", "/") + ". Data:" + message.data.ToString());
}, null, commBroker, string.Empty);
// TODO : business logic to grant QoS levels based on some conditions ?
// now the broker granted the QoS levels requested by client
// subscribe client for each topic and QoS level requested
//this.subscriberManager.Subscribe(e.Topics[i].Replace("/", ".").Replace("+", "*"), e.QoSLevels[i], client);
//}
try
{
// send SUBACK message to the client
client.Suback(e.MessageId, e.QoSLevels);
//for (int i = 0; i < e.Topics.Length; i++)
//{
// // publish retained message on the current subscription
// //this.publisherManager.PublishRetaind(e.Topics[i], client.ClientId);
//}
}
catch (MqttCommunicationException)
{
this.CloseClient(client);
}
}