private static async Task MqttClient_Connected(object sender, MqttClientConnectedEventArgs e)
{
try
{
ReconnectionFailures = 0; //Reset errorcounter
// Suscribe to our default topics
List <string> topics = new List <string>()
{
$"{Program.Settings.MQTT_BASETOPIC}/$broadcast/#", // Example: homie/$broadcast/alert ← "Intruder detected"
$"{BasePublishingTopic}/get/", // Used for get-/setting data that's not part of the Homie specs, like
$"{BasePublishingTopic}/set/", // config files, config and such.
$"{BasePublishingTopic}/RAW/in/", // Allows the user to send raw bytes to the CI
$"{BasePublishingTopic}/raw/in/", // Same as RAW, but the bytes are now human readable strings "06 C1 04 ..."
$"{BasePublishingTopic}/cmd/" // A way to receive simple commands like "exit"
//$"{BasePublishingTopic}/shell/#" // Runs shell commands on the system. Potensial SECURITY HOLE
};
// Time to tell everyone about our devices, and set up a subscription for that device if needed.
foreach (Homie.Device device in Homie.devices)
{
await MQTT.PublishDeviceAsync(device); // Publishes a LOT of information
foreach (Homie.Node node in device.Node)
{
foreach (Homie.Property property in node.PropertyList)
{
if (property.Settable == "true") // If this is a settable value, we need to subscribe to a topic for it
{
//await mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic($"{Program.Settings.MQTT_BASETOPIC}/{device.Name}/{node.PathName}/{property.PathName}/set".Replace("//","/")).Build());
topics.Add($"{Program.Settings.MQTT_BASETOPIC}/{device.Name}/{node.PathName}/{property.PathName}/set");
}
if (device.Datapoint.Class == 0) // If this is a pollable value, we need to subscribe to a topic for that as well
{
//await mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic($"{Program.Settings.MQTT_BASETOPIC}/{device.Name}/{node.PathName}/{property.PathName}/poll".Replace("//", "/")).Build());
topics.Add($"{Program.Settings.MQTT_BASETOPIC}/{device.Name}/{node.PathName}/{property.PathName}/poll"); // This will allow us to request an update from the device
}
}
}
}
foreach (string unsafetopic in topics)
{
string topic = unsafetopic.Replace("//", "/"); // Depending on what the user has put in the settings file, this might contain //, so we remove them just in case.
await mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic(topic).Build());
if (topic.EndsWith("/"))
{
await mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic(topic.Remove(topic.Length - 1)).Build());
} // This allows us to subscribe to both topics at once.
//if (Program.Settings.GENERAL_DEBUGMODE) DoLog($"Subscribing to {topic}", 2);
}
while (mqttClient.IsConnected && Program.StayAlive) // As long as we are connected, we need to send the stats periodically
{
System.Threading.Thread.Sleep(Convert.ToInt32(Program.Settings.HOMIE_STATS_INTERVAL) * 1000);
await Homie.PublishStats();
}
}
catch (Exception exception)
{
LogException(exception);
}
}
private static async Task MqttClient_ApplicationMessageReceived(object sender, MqttApplicationMessageReceivedEventArgs e)
{
// These are the topics we are subscribing to:
//$"homie/DimKitchen/Lights/DimLevel/set" // Used to set a new value for that node/property
//$"homie/DimKitchen/Lights/DimLevel/poll" // This will allow us to request an update from the device
//$"homie/$broadcast/#" // Example: homie/$broadcast/alert ← "Intruder detected"
//$"homie/xComfort/get" // Used for get-/setting data that's not part of the Homie specs, like
//$"homie/xComfort/set" // config files, config and such.
//$"homie/xComfort/RAW/in" // Allows the user to send raw bytes to the CI
//$"homie/xComfort/raw/in" // Same as RAW, but the bytes are now human readable strings "06 C1 04 ..."
//$"homie/xComfort/cmd" // A way to receive simple commands like "exit"
//$"homie/xComfort/shell" // Runs shell commands on the system. Potensial SECURITY HOLE
// Technically, it's these formats, but they are not as nice to read:
//$"{Program.Settings.MQTT_BASETOPIC}/{device.Name}/{node.PathName}/{property.PathName}/set" (and poll)
//$"{Program.Settings.MQTT_BASETOPIC}/$broadcast/#"
//$"{BasePublishingTopic}/get/#" (and set/# and RAW/in and raw/in and cmd/# and shell/#)
string[] topics = e.ApplicationMessage.Topic.Split("/"); // Split the topic into levels
string payload = Encoding.UTF8.GetString(e.ApplicationMessage.Payload); // e.ApplicationMessage.ConvertPayloadToString();
if (Program.Settings.GENERAL_DEBUGMODE)
{
DoLog($"Incomming MQTT message: {e.ApplicationMessage.Topic}={payload}", 2);
}
// (We trust that the MQTT subscription makes sure that we don't get any unwanted suff, so we don't have to check that ourselves.)
switch (topics[1]) // This will always be "$broadcast", "xComfort" or the name of a device.
{
case "$broadcast": // It's a broadcast message for all devices
{
// We have no real use for this at the moment, but we'll display and log it anyway.
DoLog($"Broadcasted message: {e.ApplicationMessage.Topic.ToString()}={payload}", 4);
break;
}
case "xComfort": // It's one of six possible things
{
switch (topics[2])
{
case "get":
{
if (topics.Length > 3 && topics[3] == "result")
{
DoLog("MQTT bug workaround!", 2); break;
} // A bug in the library. It doesn't properly unsubscribe to topics...
// Get and settable
if (payload == "config")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.Settings.GetSettingsAsJSON(), false);
}
if (payload == "datapoints")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.GetDatapointFile(), false);
}
if (payload == "debug")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.Settings.GENERAL_DEBUGMODE.ToString(), false);
}
// Gettable only
if (payload == "temperature")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Homie.GetStatsCPUload(), false);
}
if (payload == "status")
{
string reply = "--- STAUTS ---\n";
reply += $"Debug mode: {Program.Settings.GENERAL_DEBUGMODE}\n";
reply += $"StayAlive: {Program.StayAlive}\n";
reply += $"Datapoints: {CI.datapoints.Count}\n";
reply += $"Devices: {Homie.devices.Count}\n";
reply += $"Temperature: {Homie.GetStatsCPUtemp()}";
reply += $"Publications: {PublicationCounter}\n";
reply += "--- EOT ---\n";
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", reply, false);
}
break;
}
case "set":
{
if (topics.Length > 3 && topics[3] == "result")
{
DoLog("MQTT bug workaround!", 2); break;
} // A bug in the library. It doesn't properly unsubscribe to topics...
// Get and settable
if (payload == "config")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.Settings.WriteSettingsToFile(payload).ToString(), false);
}
if (payload == "datapoints")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.SetDatapointFile(payload).ToString(), false);
}
if (payload == "debug")
{
Program.Settings.GENERAL_DEBUGMODE = (payload == "true");
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.Settings.GENERAL_DEBUGMODE.ToString(), false);
}
// Settable only
if (payload == "datapoint")
{
await SendMQTTMessageAsync($"{topics[1]}/{topics[2]}/result", Program.ImportDatapointsOneByOne(payload).ToString(), false);
}
break;
}
case "RAW":
{
await CI.SendData(e.ApplicationMessage.Payload);
break;
}
case "raw":
{
// Convert the human readable string back into the actualy bytes it represents, then sending it to the CI.
payload = payload.Replace(" ", "");
List <byte> byteList = new List <byte>();
for (int i = 0; i < payload.Length; i += 2)
{
byteList.Add(Convert.ToByte(payload.Substring(i, 2), 16));
}
await CI.SendData(byteList.ToArray());
break;
}
case "cmd":
{
if (payload == "exit")
{
Program.StayAlive = false;
}
if (payload == "update")
{
DoLog("Re-publishing all devices...", false);
foreach (Homie.Device device in Homie.devices)
{
await MQTT.PublishDeviceAsync(device);
}
DoLog("Done", 3, true, 10);
}
if (payload == "pollall")
{
DoLog("Polling all relevant devices...", true);
foreach (Homie.Device device in Homie.devices)
{
if (device.Datapoint.Class == 0)
{
await CI.RequestUpdateAsync(device.Datapoint.DP);
//System.Threading.Thread.Sleep(500);
}
}
DoLog("Polling complete!", 3, true, 10);
}
break;
}
case "shell":
{
// This is just a tad too much of a security risk to implement at this time.
// It might be a very useful feature, but there must be some security in place first!
// Have a look at https://loune.net/2017/06/running-shell-bash-commands-in-net-core/ for en example of how the execution can be implemented.
DoLog("Ignored request for shell: " + payload, 3);
break;
}
default: { break; }
}
break;
}
default: // It's a device's name, we must be more dynamic in our approach.
{
try
{
if (Program.Settings.GENERAL_DEBUGMODE)
{
DoLog($"Processing as datapoint related", 2);
}
Homie.Device device = Homie.devices.Find(x => x.Name == topics[1]);
if (Program.Settings.GENERAL_DEBUGMODE)
{
DoLog($"...found device: {device.Name}", 2);
}
Homie.Node node = device.Node.Find(x => x.PathName == topics[2]);
if (Program.Settings.GENERAL_DEBUGMODE)
{
DoLog($"...found node: {node.Name}", 2);
}
Homie.Property property = node.PropertyList.Find(x => x.PathName == topics[3]);
if (Program.Settings.GENERAL_DEBUGMODE)
{
DoLog($"...found property: {property.Name}", 2);
}
switch (topics[4])
{
case "set": { await CI.SendNewValueToDatapointAsync(device.Datapoint.DP, Convert.ToDouble(payload)); break; } //await Homie.UpdateSingleProperty($"{device.Name}/{node.PathName}/{property.PathName}", property, payload);
case "poll": { await CI.RequestUpdateAsync(device.Datapoint.DP); break; }
default: { DoLog($"Unknown action: {e.ApplicationMessage.Topic}"); break; }
}
//if (topics[4] == "set") { await Homie.UpdateSingleProperty($"{device.Name}/{node.PathName}/{property.PathName}",property, payload); }
//if (topics[4] == "poll") { await CI.RequestUpdateAsync(device.Datapoint.DP); }
//if (topics[4] != "set" && topics[4] != "poll") { DoLog($"Unknown action: {e.ApplicationMessage.Topic}"); }
}
catch (Exception exception)
{
DoLog($"Error processing MQTT message: {e.ApplicationMessage.Topic.ToString()}={payload}", 5);
LogException(exception);
}
break;
}
}
}
static void Main(string[] args)
{
// Handling CLI arguments
foreach (string arg in args)
{
bool mm = false;
bool im = false;
switch (arg)
{
case "-?":
case "--?":
case "--h":
case "/h":
case "/?":
case "-m": { mm = true; break; };
case "-h": { im = true; IllegalArguments = true; break; };
case "-def": { Settings.DefaultSettings(); break; };
case "-nope": {; break; };
case "-debug": { Settings.GENERAL_DEBUGMODE = true; break; };
default:
{
Console.WriteLine("Unknown argument: " + arg);
Console.WriteLine("Try -h for a list of available arguments.");
IllegalArguments = true;
break;
}
}
if (mm)
{
Menu.MainMenu();
}
if (im)
{
Menu.InfoMenu();
}
}
if (IllegalArguments)
{
return;
}
Menu.MainMenu();
DoLog("Starting BachelorPad...", 4);
if (Settings.GENERAL_FROM_FILE == false)
{
DoLog("Using default settings!", 4);
}
//if(Settings.DEBUGMODE) { Console.WriteLine(Settings.GetSettingsAsJSON()); Console.ReadLine(); }
// For easier switching between developer machine and the Raspberry Pi meant for production use.
if (System.Net.Dns.GetHostName().ToUpper() == "ORION")
{
Console.WriteLine("YOU ARE NOW RUNNING ON THE DEVELOPER MACHINE!");
Settings.MQTT_BASETOPIC = "debugdata";
if (ImportDatapointsFromFile("C:\\misc\\" + Settings.GENERAL_DATAPOINTS_FILENAME))
{
CreateDevicesOutOfDatapoints();
MQTT.RunMQTTClientAsync().Wait();
MQTT.PublishDeviceAsync(Homie.CreateDeviceFromDatapoint(CI.datapoints[4])).Wait();
Console.WriteLine($"Publications: {MQTT.PublicationCounter}");
CI.FakeData(new byte[] { 0x0D, 0xC1, 0x05, 0x70, 0x00, 0x62, 0x00, 0x00, 0x00, 0x00, 0x32, 0x10, 0x0B }).Wait();
//CI.FakeData(new byte[] { 0x0D, 0xC1, 0x31, 0x62, 0x17, 0x00, 0x00, 0xC9, 0x00, 0x00, 0x44, 0x24, 0x01 }).Wait();
while (StayAlive)
{
// Nada!
}
;
}
;
Console.WriteLine("---------------------------------------------------------");
while (StayAlive)
{
// Nada!
}
;
return;
}
;
BootWithoutError = ImportDatapointsFromFile(Settings.GENERAL_DATAPOINTS_FILENAME);
if (BootWithoutError)
{
CreateDevicesOutOfDatapoints();
}
if (BootWithoutError)
{
MQTT.RunMQTTClientAsync().Wait();
}
if (BootWithoutError)
{
CI.ConnectToCI().Wait();
}
if (BootWithoutError)
{
while (StayAlive)
{
// Just chill, other threads are monitoring communications...
}
// If this point in the code is reached, it means that a shutdown command has been given via MQTT.
MQTT.DisconnectMQTTClientAsync().Wait();
}
else
{
DoLog("Something failed during the program startup! Please check the logs for more info.", 5);
}
DoLog("Terminating...", 4);
}