private static CertificateChainWithPrivateKey ReadOrCreateCA(string certPath)
{
var directory = Path.GetDirectoryName(certPath) ?? Environment.CurrentDirectory;
var baseName = Path.GetFileNameWithoutExtension(certPath);
var keyPath = Path.Combine(directory, baseName + ".key");
certPath = Path.Combine(directory, baseName + ".pem");
if (!File.Exists(keyPath) || !File.Exists(certPath))
{
Console.WriteLine($"[info] missing CA certificate or key, creating a new one: " +
$"{Path.Combine(directory, baseName + ".pem")}");
var certWithKey = CertificateCreator.CreateCACertificate();
CertificateFileStore.SaveCertificate(certWithKey, certPath);
return(certWithKey);
}
using var keyFileReader = File.OpenText(keyPath);
var pemReader = new PemReader(keyFileReader);
var keyParameters = (RsaPrivateCrtKeyParameters)pemReader.ReadObject();
using var certFileStream = File.OpenRead(certPath);
var certificates = new X509CertificateParser().ReadCertificates(
certFileStream).OfType <X509Certificate>().ToArray();
return(new CertificateChainWithPrivateKey(certificates, keyParameters));
}
private static int Main(string[] args)
{
var flags = new[] { "int", "client", "ecdsa", "chain", "pfx", "p", "h", "?", "help" };
var parsedArgs = CommandLineHelper.ParseArgs(flags, args);
if (parsedArgs.ContainsKey("h") || parsedArgs.ContainsKey("help") || parsedArgs.ContainsKey("?"))
{
ShowInfoAndUsage();
return(1);
}
try
{
if (!parsedArgs.TryGetValue("ca", out var rootCertPath))
{
rootCertPath = Path.Combine(Environment.CurrentDirectory, "concertoCA.pem");
}
var password = parsedArgs.ContainsKey("p") ? ReadUserPassword() : null;
if (parsedArgs.ContainsKey("int"))
{
// we are creating intermediate certificate
if (!parsedArgs.TryGetValue(string.Empty, out var certName))
{
throw new CommandLineArgumentException(
"-int: you need to provide a name for the intermediate certificate");
}
var rootCertWithKey = ReadOrCreateCA(rootCertPath);
CertificateFileStore.SaveCertificate(
CertificateCreator.CreateCACertificate(certName, rootCertWithKey),
Path.Combine(Environment.CurrentDirectory, certName + ".pem"),
parsedArgs.ContainsKey("chain"), password);
}
else
{
parsedArgs.TryGetValue(string.Empty, out var hostsStr);
var hosts = (hostsStr ?? "").Split(new[] { ',', ' ', '\t' },
StringSplitOptions.RemoveEmptyEntries);
if (hosts.Length == 0)
{
throw new CommandLineArgumentException(
"you need to provide at least one name to create a certificate");
}
var rootCertWithKey = ReadOrCreateCA(rootCertPath);
var cert = CertificateCreator.CreateCertificate(hosts, rootCertWithKey,
parsedArgs.ContainsKey("client"), parsedArgs.ContainsKey("ecdsa"));
var extension = parsedArgs.ContainsKey("pfx") ? ".pfx" : ".pem";
CertificateFileStore.SaveCertificate(cert, Path.Combine(Environment.CurrentDirectory,
SanitizeFileName(hosts[0]) + extension), parsedArgs.ContainsKey("chain"), password);
}
return(0);
}
catch (Exception ex) when(ex is CommandLineArgumentException || ex is ArgumentException)
{
Console.WriteLine($"[error] {ex.Message}");
Console.WriteLine($" {AppName.Name} -help to see usage info.");
return(1);
}
catch (Exception ex)
{
Console.WriteLine($"[critical] {ex.Message}");
Console.WriteLine("If this error persists, please report it at https://github.com/lowleveldesign/concerto/issues, " +
"providing the below details.");
Console.WriteLine("=== Details ===");
Console.WriteLine($"{ex.GetType()}: {ex.Message}");
Console.WriteLine();
Console.WriteLine($"Command line: {Environment.CommandLine}");
Console.WriteLine($"OS: {Environment.OSVersion}");
Console.WriteLine($"x64 (OS): {Environment.Is64BitOperatingSystem}");
Console.WriteLine($"x64 (Process): {Environment.Is64BitProcess}");
return(1);
}
}