public async Task <IActionResult> GetDevice(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
try
{
VersionValidator.Validate(req);
}
catch (IncompatibleVersionException ex)
{
return(new BadRequestObjectResult(ex.Message));
}
// ABP parameters
string devAddr = req.Query["DevAddr"];
// OTAA parameters
string devEUI = req.Query["DevEUI"];
string devNonce = req.Query["DevNonce"];
string gatewayId = req.Query["GatewayId"];
if (devEUI != null)
{
EUIValidator.ValidateDevEUI(devEUI);
}
try
{
var results = await this.GetDeviceList(devEUI, gatewayId, devNonce, devAddr, log);
string json = JsonConvert.SerializeObject(results);
return(new OkObjectResult(json));
}
catch (DeviceNonceUsedException)
{
return(new BadRequestObjectResult("UsedDevNonce"));
}
catch (JoinRefusedException ex)
{
log.LogDebug("Join refused: {msg}", ex.Message);
return(new BadRequestObjectResult("JoinRefused: " + ex.Message));
}
catch (ArgumentException ex)
{
return(new BadRequestObjectResult(ex.Message));
}
}
public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = "cloudtodevicemessage/{devEUI}")] HttpRequest req,
string devEUI)
{
EUIValidator.ValidateDevEUI(devEUI);
var requestBody = await req.ReadAsStringAsync();
if (string.IsNullOrEmpty(requestBody))
{
return(new BadRequestObjectResult("missing body"));
}
var c2dMessage = JsonConvert.DeserializeObject <LoRaCloudToDeviceMessage>(requestBody);
c2dMessage.DevEUI = devEUI;
return(await this.SendCloudToDeviceMessageImplementationAsync(devEUI, c2dMessage));
}
public IActionResult NextFCntDownInvoke(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
try
{
VersionValidator.Validate(req);
}
catch (IncompatibleVersionException ex)
{
return(new BadRequestObjectResult(ex.Message));
}
string devEUI = req.Query["DevEUI"];
string fCntDown = req.Query["FCntDown"];
string fCntUp = req.Query["FCntUp"];
string gatewayId = req.Query["GatewayId"];
string abpFcntCacheReset = req.Query["ABPFcntCacheReset"];
uint newFCntDown = 0;
EUIValidator.ValidateDevEUI(devEUI);
if (!string.IsNullOrEmpty(abpFcntCacheReset))
{
this.deviceCache.KeyDelete(devEUI);
return((ActionResult) new OkObjectResult(null));
}
// validate input parameters
if (!uint.TryParse(fCntDown, out uint clientFCntDown) ||
!uint.TryParse(fCntUp, out uint clientFCntUp) ||
string.IsNullOrEmpty(gatewayId))
{
string errorMsg = "Missing FCntDown or FCntUp or GatewayId";
throw new ArgumentException(errorMsg);
}
newFCntDown = this.GetNextFCntDown(devEUI, gatewayId, clientFCntUp, clientFCntDown);
return((ActionResult) new OkObjectResult(newFCntDown));
}
public async Task <IActionResult> NextFCntDownInvoke(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
try
{
VersionValidator.Validate(req);
}
catch (IncompatibleVersionException ex)
{
return(new BadRequestObjectResult(ex.Message));
}
string devEUI = req.Query["DevEUI"];
string fCntDown = req.Query["FCntDown"];
string fCntUp = req.Query["FCntUp"];
string gatewayId = req.Query["GatewayId"];
string abpFcntCacheReset = req.Query["ABPFcntCacheReset"];
uint newFCntDown = 0;
EUIValidator.ValidateDevEUI(devEUI);
if (!uint.TryParse(fCntUp, out uint clientFCntUp))
{
string errorMsg = "Missing FCntUp";
throw new ArgumentException(errorMsg);
}
if (!string.IsNullOrEmpty(abpFcntCacheReset))
{
using (var deviceCache = new LoRaDeviceCache(this.deviceCache, devEUI, gatewayId))
{
if (await deviceCache.TryToLockAsync())
{
if (deviceCache.TryGetInfo(out var deviceInfo))
{
// only reset the cache if the current value is larger
// than 1 otherwise we likely reset it from another device
// and continued processing
if (deviceInfo.FCntUp > 1)
{
log.LogDebug("Resetting cache. FCntUp: {fcntup}", deviceInfo.FCntUp);
deviceCache.ClearCache();
}
}
}
}
return((ActionResult) new OkObjectResult(null));
}
// validate input parameters
if (!uint.TryParse(fCntDown, out uint clientFCntDown) ||
string.IsNullOrEmpty(gatewayId))
{
string errorMsg = "Missing FCntDown or GatewayId";
throw new ArgumentException(errorMsg);
}
newFCntDown = await this.GetNextFCntDownAsync(devEUI, gatewayId, clientFCntUp, clientFCntDown);
return((ActionResult) new OkObjectResult(newFCntDown));
}
