/// <summary>
/// Load a single maFile with the security credentials
/// </summary>
/// <param name="mafile">filename</param>
/// <param name="password">optional password</param>
/// <param name="steamid">steamid if known</param>
/// <param name="iv">optional iv for decryption</param>
/// <param name="salt">optional salt</param>
private void LoadSDAFile(string mafile, string password = null, string steamid = null, string iv = null,
string salt = null)
{
string data;
if (File.Exists(mafile) == false || (data = File.ReadAllText(mafile)) == null)
{
throw new ApplicationException("Cannot read file " + mafile);
}
// decrypt
if (string.IsNullOrEmpty(password) == false)
{
var ciphertext = Convert.FromBase64String(data);
#if NETFX_4
using (var pbkdf2 = new Rfc2898DeriveBytes(password, Convert.FromBase64String(salt),
ImportedSDAEntry.PBKDF2_ITERATIONS))
#endif
{
var key = pbkdf2.GetBytes(ImportedSDAEntry.KEY_SIZE_BYTES);
using (var aes256 = new RijndaelManaged())
{
aes256.IV = Convert.FromBase64String(iv);
aes256.Key = key;
aes256.Padding = PaddingMode.PKCS7;
aes256.Mode = CipherMode.CBC;
try
{
using (var decryptor = aes256.CreateDecryptor(aes256.Key, aes256.IV))
{
using (var ms = new MemoryStream(ciphertext))
{
using (var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read))
{
using (var sr = new StreamReader(cs))
{
data = sr.ReadToEnd();
}
}
}
}
}
catch (CryptographicException)
{
throw new ApplicationException("Invalid password");
}
}
}
}
var token = JObject.Parse(data);
var sdaentry = new ImportedSDAEntry();
sdaentry.Username = token.SelectToken("account_name") != null
? token.SelectToken("account_name").Value <string>()
: null;
sdaentry.SteamId = steamid;
if (string.IsNullOrEmpty(sdaentry.SteamId))
{
sdaentry.SteamId = token.SelectToken("Session.SteamID") != null
? token.SelectToken("Session.SteamID").Value <string>()
: null;
}
if (string.IsNullOrEmpty(sdaentry.SteamId))
{
sdaentry.SteamId = mafile.Split('.')[0];
}
sdaentry.json = data;
importSDAList.Items.Add(sdaentry);
}
/// <summary>
/// Load a single maFile with the security credentials
/// </summary>
/// <param name="mafile">filename</param>
/// <param name="password">optional password</param>
/// <param name="steamid">steamid if known</param>
/// <param name="iv">optional iv for decryption</param>
/// <param name="salt">optional salt</param>
private void LoadSDAFile(string mafile, string password = null, string steamid = null, string iv = null, string salt = null)
{
string data;
if (File.Exists(mafile) == false || (data = File.ReadAllText(mafile)) == null)
{
throw new ApplicationException("Cannot read file " + mafile);
}
// decrypt
if (string.IsNullOrEmpty(password) == false)
{
byte[] ciphertext = Convert.FromBase64String(data);
#if NETFX_4
using (Rfc2898DeriveBytes pbkdf2 = new Rfc2898DeriveBytes(password, Convert.FromBase64String(salt), ImportedSDAEntry.PBKDF2_ITERATIONS))
#endif
#if NETFX_3
Rfc2898DeriveBytes pbkdf2 = new Rfc2898DeriveBytes(password, Convert.FromBase64String(salt), ImportedSDAEntry.PBKDF2_ITERATIONS);
#endif
{
byte[] key = pbkdf2.GetBytes(ImportedSDAEntry.KEY_SIZE_BYTES);
using (RijndaelManaged aes256 = new RijndaelManaged())
{
aes256.IV = Convert.FromBase64String(iv);
aes256.Key = key;
aes256.Padding = PaddingMode.PKCS7;
aes256.Mode = CipherMode.CBC;
try
{
using (ICryptoTransform decryptor = aes256.CreateDecryptor(aes256.Key, aes256.IV))
{
using (MemoryStream ms = new MemoryStream(ciphertext))
{
using (CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read))
{
using (StreamReader sr = new StreamReader(cs))
{
data = sr.ReadToEnd();
}
}
}
}
}
catch (CryptographicException )
{
throw new ApplicationException("Invalid password");
}
}
}
}
var token = JObject.Parse(data);
var sdaentry = new ImportedSDAEntry();
sdaentry.Username = token.SelectToken("account_name") != null ? token.SelectToken("account_name").Value<string>() : null;
sdaentry.SteamId = steamid;
if (string.IsNullOrEmpty(sdaentry.SteamId) == true)
{
sdaentry.SteamId = token.SelectToken("Session.SteamID") != null ? token.SelectToken("Session.SteamID").Value<string>() : null;
}
if (string.IsNullOrEmpty(sdaentry.SteamId) == true)
{
sdaentry.SteamId = mafile.Split('.')[0];
}
sdaentry.json = data;
importSDAList.Items.Add(sdaentry);
}
