public async Task <HttpResponseMessage> GetFirmware(string deviceName)
{
string tag = Request.Headers.IfNoneMatch
.Select(eTag => eTag.Tag.Replace("\"", ""))
.FirstOrDefault();
FirmwareUpgrade upgrade = await devicesService.GetNewFirmware(deviceName, tag);
await devicesService.UpdateLastContactTime(deviceName);
if (upgrade != null)
{
// run HEXMOD on the upgrade file (get flash attributes Start, Length, CRC16-CCITT (iReflected, oReflected))
HexFileUtility.FlashCRCData flashCRC = HexFileUtility.ProcessHEX(upgrade.FileData);
var response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new ByteArrayContent(upgrade.FileData.Concat(flashCRC.bytesToAppend).ToArray());
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
response.Headers.ETag = new EntityTagHeaderValue(String.Format("\"{0}\"", upgrade.FileHash), false);
return(response);
}
else
{
return(Request.CreateResponse(HttpStatusCode.NoContent));
}
}
public async Task <ActionResult> Create(FormCollection form)
{
FirmwareUpgradeViewModel vm = new FirmwareUpgradeViewModel();
if (TryUpdateModel(vm))
{
byte[] upgradeBytes = null;
using (BinaryReader r = new BinaryReader(vm.UploadedFile.InputStream))
{
upgradeBytes = r.ReadBytes(vm.UploadedFile.ContentLength);
}
// Calculate MD5 of the file.
string fileMD5 = HexFileUtility.GetMd5Hash(upgradeBytes);
FirmwareUpgrade upgrade = new FirmwareUpgrade
{
Name = vm.Name,
FileHash = fileMD5,
FileData = upgradeBytes,
};
upgrade = await upgradesService.CreateFirmwareUpgrade(upgrade);
if (upgrade == null)
{
ModelState.AddModelError("UpgradeCreationFailed", "Failed to create upgrade. Does an upgrade with this name already exist?");
return(View(vm));
}
}
return(RedirectToAction("Index"));
}