// Output the processed response as a JSON string
public string ProcessJson(IHttpRequest request)
{
var rc = false;
var query = request.Url.Query;
cumulus.LogDebugMessage("API tag: Processing API JSON tag request");
cumulus.LogDataMessage($"API tag: Source = {request.RemoteEndPoint} Input string = {query}");
var output = new StringBuilder("{", query.Length * 2);
try
{
// remove leading "?" and split on "&"
var input = new List <string>(query.Substring(1).Split('&'));
var parms = new Dictionary <string, string>();
if (input[0] == "rc")
{
input.RemoveAt(0);
rc = true;
}
foreach (var tag in input)
{
if (rc)
{
parms.Add("webtag", tag);
parms.Add("rc", "y");
}
var val = webtags.GetWebTagText(tag, parms);
output.Append($"\"{tag}\":\"{val}\",");
if (rc)
{
parms.Clear();
}
}
if (output.Length > 1)
{
// remove trailing ","
output.Remove(output.Length - 1, 1);
}
output.Append('}');
cumulus.LogDataMessage("API tag: Output string = " + output);
}
catch (Exception ex)
{
cumulus.LogMessage($"API tag: Error - {ex.Message}");
output.Append($"\"ERROR\":\"{ex.Message}\"}}");
}
return(output.ToString());
}
// Output the processed response as a JSON string
public string ProcessJson(string query)
{
var rc = false;
cumulus.LogDebugMessage("API tag: Processing API JSON tag request");
cumulus.LogDataMessage("API tag: Input string = " + query);
// remove leading "?" and split on "&"
var input = new List <string>(query.Substring(1).Split('&'));
var parms = new Dictionary <string, string>();
if (input[0] == "rc")
{
input.RemoveAt(0);
rc = true;
}
var output = new StringBuilder("{", query.Length * 2);
foreach (var tag in input)
{
if (rc)
{
parms.Add("webtag", tag);
parms.Add("rc", "y");
}
var val = webtags.GetWebTagText(tag, parms);
output.Append($"\"{tag}\":\"{val}\",");
if (rc)
{
parms.Clear();
}
}
if (output.Length > 1)
{
// remove trailing ","
output.Remove(output.Length - 1, 1);
}
output.Append("}");
cumulus.LogDataMessage("API tag: Output string = " + output);
return(output.ToString());
}
private static async Task SendMessageAsync(string topic, string message, bool retain)
{
cumulus.LogDataMessage($"MQTT: publishing to topic '{topic}', message '{message}'");
var mqttMsg = new MqttApplicationMessageBuilder()
.WithTopic(topic)
.WithPayload(message)
.WithRetainFlag(retain)
.Build();
await mqttClient.PublishAsync(mqttMsg, CancellationToken.None);
}
private static async Task SendMessageAsync(string topic, string message, bool retain)
{
cumulus.LogDataMessage($"MQTT: publishing to topic '{topic}', message '{message}'");
if (mqttClient.IsConnected)
{
var mqttMsg = new MqttApplicationMessageBuilder()
.WithTopic(topic)
.WithPayload(message)
.WithRetainFlag(retain)
.Build();
await mqttClient.PublishAsync(mqttMsg, CancellationToken.None);
}
else
{
cumulus.LogMessage("MQTT: Error - Not connected to MQTT server - message not sent");
}
}
internal byte[] DoCommand(Commands command, byte[] data = null)
{
if (!connected)
{
// Are we already reconnecting?
if (connecting)
{
// yep - so wait reconnect to complete
return(null);
}
// no, try a reconnect
else if (!ReOpenTcpPort())
{
// that didn;t work, give up and return nothing
return(null);
}
}
var buffer = new byte[2028];
var bytesRead = 0;
var cmdName = command.ToString();
byte[] bytes;
if (data == null)
{
var payload = new CommandPayload(command);
bytes = payload.Serialise();
}
else
{
var payload = new CommandWritePayload(command, data);
bytes = payload.Serialise();
}
var tmrComm = new WeatherStation.CommTimer();
try
{
stream.Write(bytes, 0, bytes.Length);
tmrComm.Start(3000);
while (tmrComm.timedout == false)
{
if (stream.DataAvailable)
{
while (stream.DataAvailable)
{
// Read the current character
var ch = stream.ReadByte();
if (ch > -1)
{
buffer[bytesRead] = (byte)ch;
bytesRead++;
//cumulus.LogMessage("Received " + ch.ToString("X2"));
}
}
tmrComm.Stop();
}
else
{
Task.Delay(20).Wait();
}
}
// Check the response is to our command and checksum is OK
if (bytesRead == 0 || buffer[2] != (byte)command || !ChecksumOk(buffer, (int)Enum.Parse(typeof(CommandRespSize), cmdName)))
{
if (bytesRead > 0)
{
cumulus.LogMessage($"DoCommand({cmdName}): Invalid response");
cumulus.LogDebugMessage($"command resp={buffer[2]}, checksum=" + (ChecksumOk(buffer, (int)Enum.Parse(typeof(CommandRespSize), cmdName)) ? "OK" : "BAD"));
cumulus.LogDataMessage("Received " + BitConverter.ToString(buffer, 0, bytesRead - 1));
}
else
{
cumulus.LogMessage($"DoCommand({cmdName}): No response received");
}
return(null);
}
else
{
cumulus.LogDebugMessage($"DoCommand({cmdName}): Valid response");
}
}
catch (Exception ex)
{
cumulus.LogMessage($"DoCommand({cmdName}): Error - " + ex.Message);
cumulus.LogMessage("Attempting to reopen the TCP port");
Thread.Sleep(1000);
ReOpenTcpPort();
return(null);
}
// Return the data we want out of the buffer
if (bytesRead > 0)
{
var data1 = new byte[bytesRead];
Array.Copy(buffer, data1, data1.Length);
cumulus.LogDataMessage("Received: " + BitConverter.ToString(data1));
return(data1);
}
return(null);
}