private int decrypt(string tempRipFile)
{
FileExt.SafeDelete(tempRipFile);
Console.WriteLine("Decrypting with key " + decryptKey);
var returnCode = 100;
var thread = new Thread(() => returnCode = ngDecrypt());
thread.Start();
double fileLen = new FileInfo(inputFileName).Length;
while (thread.IsAlive && returnCode == 100)
{
Thread.Sleep(500);
if (File.Exists(tempRipFile))
{
double tempLen = new FileInfo(tempRipFile).Length;
var percentProgress = tempLen / fileLen * 100.0;
DecryptProgressUpdate?.Invoke(this, (int)percentProgress);
}
}
return(returnCode);
}
public bool Step2_DecryptAax()
{
DecryptProgressUpdate?.Invoke(this, 0);
var tempRipFile = Path.Combine(outDir, "funny.aac");
var fail = "WARNING-Decrypt failure. ";
int returnCode;
if (string.IsNullOrWhiteSpace(decryptKey))
{
returnCode = getKey_decrypt(tempRipFile);
}
else
{
returnCode = decrypt(tempRipFile);
if (returnCode == -99)
{
Console.WriteLine($"{fail}Incorrect decrypt key: {decryptKey}");
decryptKey = null;
returnCode = getKey_decrypt(tempRipFile);
}
}
if (returnCode == 100)
{
Console.WriteLine($"{fail}Thread completed without changing return code. This shouldn't be possible");
}
else if (returnCode == 0)
{
// success!
FileExt.SafeMove(tempRipFile, outputFileWithNewExt(".mp4"));
DecryptProgressUpdate?.Invoke(this, 100);
return(true);
}
else if (returnCode == -99)
{
Console.WriteLine($"{fail}Incorrect decrypt key: {decryptKey}");
}
else // any other returnCode
{
Console.WriteLine($"{fail}Unknown failure code: {returnCode}");
}
FileExt.SafeDelete(tempRipFile);
DecryptProgressUpdate?.Invoke(this, 0);
return(false);
}
private void AaxFile_ConversionProgressUpdate(object sender, ConversionProgressEventArgs e)
{
var duration = aaxFile.Duration;
double remainingSecsToProcess = (duration - e.ProcessPosition).TotalSeconds;
double estTimeRemaining = remainingSecsToProcess / e.ProcessSpeed;
if (double.IsNormal(estTimeRemaining))
{
DecryptTimeRemaining?.Invoke(this, TimeSpan.FromSeconds(estTimeRemaining));
}
double progressPercent = 100 * e.ProcessPosition.TotalSeconds / duration.TotalSeconds;
DecryptProgressUpdate?.Invoke(this, (int)progressPercent);
}
public bool Step2_DownloadAndCombine()
{
DecryptProgressUpdate?.Invoke(this, 0);
if (File.Exists(OutputFileName))
{
FileExt.SafeDelete(OutputFileName);
}
FileStream outFile = File.OpenWrite(OutputFileName);
aaxFile.SetDecryptionKey(downloadLicense.AudibleKey, downloadLicense.AudibleIV);
aaxFile.ConversionProgressUpdate += AaxFile_ConversionProgressUpdate;
var decryptionResult = OutputFormat == OutputFormat.Mp4a ? aaxFile.ConvertToMp4a(outFile, downloadLicense.ChapterInfo) : aaxFile.ConvertToMp3(outFile);
aaxFile.ConversionProgressUpdate -= AaxFile_ConversionProgressUpdate;
aaxFile.Close();
downloadLicense.ChapterInfo = aaxFile.Chapters;
if (decryptionResult == ConversionResult.NoErrorsDetected &&
coverArt is not null &&
OutputFormat == OutputFormat.Mp4a)
{
//This handles a special case where the aaxc file doesn't contain cover art and
//Libation downloaded it instead (Animal Farm). Currently only works for Mp4a files.
using var decryptedBook = new Mp4File(OutputFileName, FileAccess.ReadWrite);
decryptedBook.AppleTags?.SetCoverArt(coverArt);
decryptedBook.Save();
decryptedBook.Close();
}
nfsPersister.Dispose();
DecryptProgressUpdate?.Invoke(this, 0);
return(decryptionResult == ConversionResult.NoErrorsDetected && !isCanceled);
}