public static ScryptCommandLineArgs Parse(string[] args, out string verb)
{
if (args.Length == 0)
{
// Work around a bug in CommandLineParser that doesn't correctly support a custom 'help' verb.
Console.WriteLine(HelpText.AutoBuild(new ScryptCommandLineArgs(), _ => { }, true));
Environment.Exit(Parser.DefaultExitCodeFail);
}
string verbForClosure = null;
var arguments = new ScryptCommandLineArgs();
var parser = new Parser(settings => { settings.HelpWriter = null; });
var parseSucceed = parser.ParseArguments(args, arguments,
(foundVerb, subOptions) =>
{
verbForClosure = foundVerb;
});
if (!parseSucceed)
{
Console.WriteLine(HelpText.AutoBuild(arguments, _ => { }, true));
Environment.Exit(Parser.DefaultExitCodeFail);
}
verb = verbForClosure;
return arguments;
}
static void Help(ScryptCommandLineArgs parsedArgs)
{
var helpParams = parsedArgs.HelpVerb;
var helpText = string.IsNullOrEmpty(helpParams.Verb)
? HelpText.AutoBuild(parsedArgs, _ => { }, true)
: HelpText.AutoBuild(parsedArgs, helpParams.Verb);
Console.WriteLine(helpText);
}
static void Encrypt(ScryptCommandLineArgs parsedArgs)
{
var encryptParams = parsedArgs.EncryptVerb;
if (string.IsNullOrEmpty(encryptParams.InputFile) || string.IsNullOrEmpty(encryptParams.OutputFile))
{
Console.WriteLine(HelpText.AutoBuild(parsedArgs, "enc"));
Environment.Exit(Parser.DefaultExitCodeFail);
}
using (var input = ConsoleUtils.OpenStreamOrExit(encryptParams.InputFile, FileMode.Open, FileAccess.Read, "Cannot open input file"))
using (var output = ConsoleUtils.OpenStreamOrExit(encryptParams.OutputFile, FileMode.Create, FileAccess.ReadWrite, "Cannot open output file"))
{
var password = ConsoleUtils.ReadPasswords("Please enter passphrase: ", "Please confirm passphrase: ");
Console.WriteLine();
var encryption = new ScryptEncryption(password, encryptParams.MaxMemoryBytes,
encryptParams.MaxMemoryPercentage,
TimeSpan.FromSeconds(encryptParams.MaxTimeSeconds));
encryption.Encrypt(input, output);
}
}