public void DecryptData()
{
var decrypted = Aes.DecryptByteArray(EncryptedMessage, Key);
Assert.NotNull(decrypted);
Assert.Equal(DecryptedMessage.Length, decrypted.Length);
Assert.Equal(DecryptedMessage, decrypted);
}
public void EncryptDecryptData()
{
var encrypted = Aes.EncryptByteArray(Encoding.Default.GetBytes(DecryptedMessage), Key);
var decrypted = Aes.DecryptByteArray(encrypted, Key);
Assert.NotNull(encrypted);
Assert.NotNull(decrypted);
Assert.Equal(DecryptedMessage, decrypted);
}
public void EncryptDecryptByteArrayWithGeneratedKey(int keySize)
{
byte[] decryptedMessageBytes = Encoding.UTF8.GetBytes(DecryptedMessage);
byte[] generatedKey = Convert.FromBase64String(Aes.GenerateKey(keySize));
byte[] encryptedData = Aes.EncryptByteArray(decryptedMessageBytes, generatedKey);
Assert.NotNull(encryptedData);
string decryptedData = Aes.DecryptByteArray(encryptedData, generatedKey);
Assert.NotNull(decryptedData);
Assert.Equal(DecryptedMessage, decryptedData);
}
public void Deserialize(INetPacketStream packet)
{
BuildVersion = packet.Read <string>();
Username = packet.Read <string>();
Password = null;
if (_configuration.PasswordEncryption)
{
byte[] encryptedPassword = packet.Read <byte>(16 * 42);
byte[] encryptionKey = Aes.BuildEncryptionKeyFromString(_configuration.EncryptionKey, 16);
Password = Aes.DecryptByteArray(encryptedPassword, encryptionKey);
}
else
{
Password = packet.Read <string>();
}
}
public static void OnLogin(LoginClient client, INetPacketStream packet)
{
var loginServer = DependencyContainer.Instance.Resolve <ILoginServer>();
var configuration = DependencyContainer.Instance.Resolve <LoginConfiguration>();
var certifyPacket = new CertifyPacket(packet, configuration.PasswordEncryption);
string password = null;
if (certifyPacket.BuildVersion != configuration.BuildVersion)
{
AuthenticationFailed(client, ErrorType.CERT_GENERAL, "bad client build version");
return;
}
if (configuration.PasswordEncryption)
{
byte[] encryptionKey = Aes.BuildEncryptionKeyFromString(configuration.EncryptionKey, 16);
password = Aes.DecryptByteArray(certifyPacket.EncryptedPassword, encryptionKey);
}
else
{
password = packet.Read <string>();
}
var authenticationService = DependencyContainer.Instance.Resolve <IAuthenticationService>();
var authenticationResult = authenticationService.Authenticate(certifyPacket.Username, password);
switch (authenticationResult)
{
case AuthenticationResult.BadUsername:
AuthenticationFailed(client, ErrorType.FLYFF_ACCOUNT, "bad username");
break;
case AuthenticationResult.BadPassword:
AuthenticationFailed(client, ErrorType.FLYFF_PASSWORD, "bad password");
break;
case AuthenticationResult.AccountSuspended:
// TODO
break;
case AuthenticationResult.AccountTemporarySuspended:
// TODO
break;
case AuthenticationResult.AccountDeleted:
AuthenticationFailed(client, ErrorType.ILLEGAL_ACCESS, "logged in with deleted account");
break;
case AuthenticationResult.Success:
if (loginServer.IsClientConnected(certifyPacket.Username))
{
AuthenticationFailed(client, ErrorType.DUPLICATE_ACCOUNT, "client already connected", disconnectClient: false);
return;
}
using (var database = DependencyContainer.Instance.Resolve <IDatabase>())
{
var user = database.Users.Get(x => x.Username.Equals(certifyPacket.Username, StringComparison.OrdinalIgnoreCase));
if (user == null)
{
AuthenticationFailed(client, ErrorType.ILLEGAL_ACCESS, "Cannot find user in database");
Logger.LogCritical($"Cannot find user '{certifyPacket.Username}' in database to update last connection time.");
return;
}
user.LastConnectionTime = DateTime.UtcNow;
database.Users.Update(user);
database.Complete();
}
LoginPacketFactory.SendServerList(client, certifyPacket.Username, loginServer.GetConnectedClusters());
client.SetClientUsername(certifyPacket.Username);
Logger.LogInformation($"User '{client.Username}' logged succesfully from {client.RemoteEndPoint}.");
break;
default:
break;
}
}