public void CheckMalware(DiarioFileAnalysis file)
{
if (file == null)
{
throw new ArgumentNullException(nameof(file));
}
Task.Factory.StartNew(async() => await CheckFile(file), file.CancelToken, TaskCreationOptions.DenyChildAttach | TaskCreationOptions.HideScheduler, this.currentScheduler);
}
private async Task CheckFile(DiarioFileAnalysis file)
{
try
{
if (file.Retries > MaxRetries || file.CancelToken.IsCancellationRequested)
{
file.Error = file.Retries > MaxRetries ? "Too many retries. Try again later" : "Operation canceled";
file.Callback(file);
}
else
{
byte[] fileContent = null;
if (String.IsNullOrWhiteSpace(file.Sha256Hash))
{
using (SHA256Managed sha256 = new SHA256Managed())
{
fileContent = File.ReadAllBytes(file.FilePath);
file.Sha256Hash = BitConverter.ToString(sha256.ComputeHash(fileContent)).Replace("-", "").ToLowerInvariant();
}
}
BaseSDK.ApiResponse <dynamic> diarioResponse = this.sdk.Search(file.Sha256Hash);
if (diarioResponse != null)
{
if (diarioResponse.Error != null)
{
if (diarioResponse.Error?.Code == FileNotFoundErrorCode)
{
diarioResponse = this.sdk.Upload(fileContent ?? File.ReadAllBytes(file.FilePath), Path.GetFileName(file.FilePath));
file.Retries++;
await Task.Delay(DelayBetweenRetries);
this.CheckMalware(file);
}
else
{
file.Error = diarioResponse.Error.Message;
file.Callback(file);
}
}
else if (diarioResponse.Data?["status"] == Analyzed)
{
file.Prediction = DiarioSDKNet.Diario.GetPredictonFromString(diarioResponse.Data["prediction"]);
file.Completed = true;
file.Callback(file);
}
else if (diarioResponse.Data?["status"] == Processing || diarioResponse.Data?["status"] == Queued)
{
file.Retries++;
await Task.Delay(DelayBetweenRetries);
this.CheckMalware(file);
}
else if (diarioResponse.Data?["status"] == Failed)
{
file.Error = "The analysis failed";
file.Prediction = DiarioSDKNet.Diario.Prediction.Unknown;
file.Callback(file);
}
else
{
file.Error = "Unknown status";
file.Prediction = DiarioSDKNet.Diario.Prediction.Unknown;
file.Callback(file);
}
}
else
{
file.Error = "No response from DIARIO service";
file.Callback(file);
}
}
}
catch (Exception e)
{
file.Error = e.Message;
file.Completed = false;
file.Callback(file);
}
}