private void Send()
{
if (Sending == false)
{
if (msg.Count() > 0)
{
Sending = true;
Msg m = msg.Dequeue();
if (m != null)
{
byte[] buf = m.Serialize_Msg();
if (socket.CheckConnect())
{
socket.SendAsync(buf, (ok) =>
{
if (ok)
{
Sending = false;
}
});
}
else
{
msg.Enqueue(m);
}
}
}
}
}//end send
protected override void DoPost(CoapExchange exchange)
{
Task.Run(async() =>
{
try
{
Int32 ct = MediaType.TextPlain;
Dictionary <string, object> keyValues = new Dictionary <string, object>();
if ((ct = MediaType.NegotiationContent(ct, _supported, exchange.Request.GetOptions(OptionType.Accept))) == MediaType.Undefined)
{
exchange.Respond(StatusCode.NotAcceptable, "supported list: ApplicationJson,TextPlain,TextXml,ApplicationOctetStream");
exchange.Reject();
}
else
{
if (!exchange.Request.UriQueries.Any())
{
exchange.Respond(StatusCode.BadRequest, "Forgot the parameters?");
exchange.Reject();
}
else
{
var querys = exchange.Request.UriQueries.ToArray();
var acctoken = exchange.Request.UriQueries.FirstOrDefault();
switch (ct)
{
case MediaType.ApplicationJson:
case MediaType.TextPlain:
keyValues = JToken.Parse(exchange.Request.PayloadString)?.JsonToDictionary();
break;
case MediaType.TextXml:
if (querys.Length >= 2)
{
var xml = new System.Xml.XmlDocument();
try
{
xml.LoadXml(exchange.Request.PayloadString);
}
catch (Exception ex)
{
exchange.Respond(StatusCode.BadRequest, $"Can't load xml ,{ex.Message}");
}
keyValues.Add(querys[1], xml);
}
else
{
exchange.Respond(StatusCode.BadRequest, "You did not specify key name for xml.");
exchange.Reject();
}
break;
case MediaType.ApplicationOctetStream:
if (querys.Length >= 2)
{
keyValues.Add(querys[1], exchange.Request.Payload);
}
else
{
exchange.Respond(StatusCode.BadRequest, "You did not specify key name for binary.");
exchange.Reject();
}
break;
default:
break;
}
var mcr = await _dbContext.DeviceIdentities.Include(d => d.Device).FirstOrDefaultAsync(di => di.IdentityType == IdentityType.AccessToken && di.IdentityId == acctoken);
var dev = mcr?.Device;
if (mcr != null && dev != null)
{
switch (_res)
{
case CoApRes.Attributes:
_queue.Enqueue(new RawMsg()
{
MsgType = MsgType.CoAP, MsgBody = keyValues, DataCatalog = DataCatalog.AttributeData, DataSide = DataSide.ClientSide, DeviceId = dev.Id
});
exchange.Respond(StatusCode.Changed, $"OK");
break;
case CoApRes.Telemetry:
_queue.Enqueue(new RawMsg()
{
MsgType = MsgType.CoAP, MsgBody = keyValues, DataCatalog = DataCatalog.AttributeData, DataSide = DataSide.ClientSide, DeviceId = dev.Id
});
exchange.Respond(StatusCode.Created, $"OK");
break;
default:
break;
}
exchange.Accept();
}
else
{
exchange.Respond(StatusCode.NotFound, "Can't found device.");
exchange.Reject();
}
}
}
}
catch (Exception ex)
{
exchange.Respond(StatusCode.BadRequest, ex.Message);
exchange.Reject();
}
});
}
internal void Server_ApplicationMessageReceived(object sender, MqttApplicationMessageReceivedEventArgs e)
{
if (string.IsNullOrEmpty(e.ClientId))
{
_logger.LogInformation($"Message: Topic=[{e.ApplicationMessage.Topic }]");
}
else
{
_logger.LogInformation($"Server received {e.ClientId}'s message: Topic=[{e.ApplicationMessage.Topic }],Retain=[{e.ApplicationMessage.Retain}],QualityOfServiceLevel=[{e.ApplicationMessage.QualityOfServiceLevel}]");
if (!lstTopics.ContainsKey(e.ApplicationMessage.Topic))
{
lstTopics.Add(e.ApplicationMessage.Topic, 1);
Task.Run(() => _serverEx.PublishAsync("$SYS/broker/subscriptions/count", lstTopics.Count.ToString()));
}
else
{
lstTopics[e.ApplicationMessage.Topic]++;
}
if (e.ApplicationMessage.Payload != null)
{
received += e.ApplicationMessage.Payload.Length;
}
string topic = e.ApplicationMessage.Topic;
var tpary = topic.Split('/', StringSplitOptions.RemoveEmptyEntries);
if (tpary.Length >= 3 && tpary[0] == "devices" && Devices.ContainsKey(e.ClientId))
{
Device device = JudgeOrCreateNewDevice(tpary, Devices[e.ClientId]);
if (device != null)
{
Dictionary <string, object> keyValues = new Dictionary <string, object>();
if (tpary.Length >= 4)
{
string keyname = tpary.Length >= 5 ? tpary[4] : tpary[3];
if (tpary[3].ToLower() == "xml")
{
try
{
var xml = new System.Xml.XmlDocument();
xml.LoadXml(e.ApplicationMessage.ConvertPayloadToString());
keyValues.Add(keyname, xml);
}
catch (Exception ex)
{
_logger.LogWarning(ex, $"xml data error {topic},{ex.Message}");
}
}
else if (tpary[3].ToLower() == "binary")
{
keyValues.Add(keyname, e.ApplicationMessage.Payload);
}
}
else
{
try
{
keyValues = e.ApplicationMessage.ConvertPayloadToDictionary();
}
catch (Exception ex)
{
_logger.LogWarning(ex, $"ConvertPayloadToDictionary Error {topic},{ex.Message}");
}
}
if (tpary[2] == "telemetry")
{
_queue.Enqueue(new RawMsg()
{
DeviceId = device.Id, MsgBody = keyValues, DataSide = DataSide.ClientSide, DataCatalog = DataCatalog.TelemetryData
});
}
else if (tpary[2] == "attributes")
{
if (tpary.Length > 3 && tpary[3] == "request")
{
Task.Run(async() =>
{
await RequestAttributes(tpary, e.ApplicationMessage.ConvertPayloadToDictionary(), device);
});
}
else
{
_queue.Enqueue(new RawMsg()
{
DeviceId = device.Id, MsgBody = keyValues, DataSide = DataSide.ClientSide, DataCatalog = DataCatalog.AttributeData
});
}
}
}
}
}
}