public static CryptoResult ReadFile(string path, CryptoProvider provider)
{
byte[] buffer;
using (FileStream fileStream = File.OpenRead(path))
{
using (GZipStream gzipStream = new GZipStream((Stream)fileStream, CompressionMode.Decompress, false))
{
using (MemoryStream memoryStream = new MemoryStream())
{
gzipStream.CopyTo((Stream)memoryStream);
buffer = memoryStream.GetBuffer();
}
}
}
string str1 = Encoding.UTF8.GetString(buffer, 0, buffer.Length);
int length = str1.IndexOf("\n", StringComparison.Ordinal);
string str2 = str1.Substring(length + 1);
if (length == -1)
{
return(new CryptoResult(str2, false));
}
string strB = str1.Substring(0, length);
bool isValid = string.Compare(provider.GetSignature(str2, false), strB, StringComparison.Ordinal) == 0;
return(new CryptoResult(str2, isValid));
}
public override int Run(string[] remainingArguments)
{
if (this.OutputPath == null)
{
this.OutputPath = this.InputPath + ".txt";
}
CryptoProvider cryptoProvider = CryptoFactory.GetCryptoProvider(this.Game);
CryptoResult cryptoResult;
try
{
cryptoResult = CryptoFileReader.ReadFile(this.InputPath, cryptoProvider);
}
catch (Exception ex)
{
Console.WriteLine("Can't open input file");
return(1);
}
FileStream fileStream;
try
{
fileStream = File.Open(this.OutputPath, FileMode.Create, FileAccess.Write);
}
catch (Exception ex)
{
Console.WriteLine("Can't create output file");
return(1);
}
if (!cryptoResult.IsSignatureValid)
{
Console.WriteLine("Warning: signature is invalid");
}
string str = cryptoResult.Result;
if (this.Prettify)
{
try
{
str = this.GetPrettyString(str);
}
catch (Exception ex)
{
Console.WriteLine("Warning: data is not valid JSON");
}
}
byte[] bytes = Encoding.UTF8.GetBytes(str);
fileStream.Write(bytes, 0, bytes.Length);
fileStream.Close();
return(0);
}
public static void Write(string path, string data, bool overwrite, CryptoProvider provider)
{
FileMode mode = overwrite ? FileMode.Create : FileMode.CreateNew;
string signature = provider.GetSignature(data, false);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(signature);
stringBuilder.Append('\n');
stringBuilder.Append(data);
byte[] bytes = Encoding.UTF8.GetBytes(stringBuilder.ToString());
using (FileStream fileStream = File.Open(path, mode))
{
using (GZipStream gzipStream = new GZipStream((Stream)fileStream, CompressionMode.Compress, false))
gzipStream.Write(bytes, 0, bytes.Length);
}
}
public override int Run(string[] remainingArguments)
{
if (this.OutputPath == null)
{
this.OutputPath = this.InputPath + ".sav";
}
FileStream fileStream;
try
{
fileStream = File.OpenRead(this.InputPath);
}
catch (Exception ex)
{
Console.WriteLine("Can't open input file");
return(1);
}
byte[] numArray = new byte[fileStream.Length];
fileStream.Read(numArray, 0, (int)fileStream.Length);
fileStream.Close();
string minifiedString = Encoding.UTF8.GetString(numArray, 0, numArray.Length);
if (this.Minify)
{
try
{
minifiedString = this.GetMinifiedString(minifiedString);
}
catch (Exception ex)
{
Console.WriteLine("Warning: data is not valid JSON");
}
}
CryptoProvider cryptoProvider = CryptoFactory.GetCryptoProvider(this.Game);
try
{
CryptoFileWriter.Write(this.OutputPath, minifiedString, false, cryptoProvider);
}
catch (IOException ex)
{
Console.WriteLine("Can't create output file");
return(1);
}
return(0);
}
public string GetSignature(string data, bool online)
{
using (HMACSHA1 hmacshA1 = new HMACSHA1(this.GetEncryptionKey(online)))
return(CryptoProvider.HexStr(hmacshA1.ComputeHash(Encoding.UTF8.GetBytes(data))));
}
