/// <inheritdoc />
public override bool Execute()
{
if (string.IsNullOrWhiteSpace(OutputDirectory))
{
Log?.LogError(KeyGenerationTaskStrings.OutputDirectoryInvalid);
return(false);
}
if (!Directory.Exists(OutputDirectory))
{
try
{
Directory.CreateDirectory(OutputDirectory);
}
catch (Exception exception)
{
Log?.LogError(KeyGenerationTaskStrings.ErrorCreatingOutputDirectory, OutputDirectory);
Log?.LogErrorFromException(exception);
}
}
var power = Math.Log(KeySize, 0);
if (KeySize % 2 != 0 || power < 10 || power - Math.Floor(power) > 0.001)
{
Log?.LogError(KeyGenerationTaskStrings.KeySizeInvalid, KeySize);
return(false);
}
var pathPrivateKey = Path.Combine(OutputDirectory, "network.handshake.bkey");
var pathPublicKey = Path.Combine(OutputDirectory, "network.handshake.bkey.pub");
using (var rsa = new RSACryptoServiceProvider(KeySize))
{
var writePrivateKey = true;
if (!GenerateEachBuild)
{
if (File.Exists(pathPrivateKey))
{
if (File.Exists(pathPublicKey))
{
return(true);
}
Log?.LogWarning(KeyGenerationTaskStrings.PublicKeyMissing);
}
try
{
using (var stream = File.OpenRead(pathPrivateKey))
{
var privateKey = new RsaKey();
privateKey.Read(stream);
if (privateKey.IsPublic || privateKey.Format != KeyFormat.Rsa)
{
Log?.LogWarning(KeyGenerationTaskStrings.PrivateKeyInvalid);
}
else
{
rsa.ImportParameters(privateKey.Parameters);
writePrivateKey = false;
}
}
}
catch (Exception exception)
{
Log?.LogWarning(KeyGenerationTaskStrings.ErrorReadingPrivateKey);
Log?.LogWarningFromException(exception);
}
}
if (writePrivateKey)
{
var privateKey = new RsaKey(rsa.ExportParameters(true));
try
{
using (var stream = File.OpenWrite(pathPrivateKey))
{
privateKey.Write(stream);
}
}
catch (Exception exception)
{
Log?.LogError(KeyGenerationTaskStrings.ErrorWritingPrivateKey);
Log?.LogErrorFromException(exception);
return(false);
}
}
var publicKey = new RsaKey(rsa.ExportParameters(false));
try
{
using (var stream = File.OpenWrite(pathPublicKey))
{
publicKey.Write(stream);
}
}
catch (Exception exception)
{
Log?.LogError(KeyGenerationTaskStrings.ErrorWritingPublicKey);
Log?.LogErrorFromException(exception);
return(false);
}
return(true);
}
}
public override Result Run(string[] environmentArgs, string[] commandArgs)
{
var bits = 2048;
var filename = "intersect.bek";
if (commandArgs?.Length > 0)
{
if (!int.TryParse(commandArgs[0], out bits))
{
return(new Result
{
Code = 1,
Message = "Failed to parse the bit size."
});
}
if (bits % 2 != 0)
{
return(new Result
{
Code = 101,
Message = "Bit size must be a multiple of 2."
});
}
if (bits < 1)
{
return(new Result
{
Code = 102,
Message = "Bit size must be non-zero."
});
}
}
if (commandArgs?.Length > 1)
{
if (string.IsNullOrWhiteSpace(commandArgs[1]))
{
return(new Result
{
Code = 2,
Message = "Empty filename."
});
}
}
using (var rsa = new RSACryptoServiceProvider(bits))
{
var rsaPrivateKey = new RsaKey(rsa.ExportParameters(true));
using (var privateStream = new FileStream($"private-{filename}", FileMode.Create))
{
rsaPrivateKey.Write(privateStream);
}
var rsaPublicKey = new RsaKey(rsa.ExportParameters(false));
using (var publicStream = new FileStream($"public-{filename}", FileMode.Create))
{
rsaPublicKey.Write(publicStream);
}
}
return(new Result());
}
