public ConnectionService(Session session, UserauthArgs auth)
: base(session)
{
Contract.Requires(auth != null);
_auth = auth;
}
public SessionRequestedArgs(SessionChannel channel, String command, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(command != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
CommandText = command;
AttachedUserauthArgs = userauthArgs;
}
private void HandleMessage(PublicKeyRequestMessage message)
{
if (Session._publicKeyAlgorithms.ContainsKey(message.KeyAlgorithmName))
{
if (!message.HasSignature)
{
_session.SendMessage(new PublicKeyOkMessage {
KeyAlgorithmName = message.KeyAlgorithmName, PublicKey = message.PublicKey
});
return;
}
var keyAlg = Session._publicKeyAlgorithms[message.KeyAlgorithmName](null);
keyAlg.LoadKeyAndCertificatesData(message.PublicKey);
var sig = keyAlg.GetSignature(message.Signature);
var verifed = false;
using (var worker = new SshDataWorker())
{
worker.WriteBinary(_session.SessionId);
worker.Write(message.PayloadWithoutSignature);
verifed = keyAlg.VerifyData(worker.ToByteArray(), sig);
}
var args = new UserauthArgs(message.KeyAlgorithmName, keyAlg.GetFingerprint(), message.PublicKey);
if (verifed && Userauth != null)
{
Userauth(this, args);
verifed = args.Result;
}
if (verifed)
{
_session.RegisterService(message.ServiceName, args);
if (Succeed != null)
{
Succeed(this, message.ServiceName);
}
_session.SendMessage(new SuccessMessage());
return;
}
else
{
_session.SendMessage(new FailureMessage());
throw new SshConnectionException("Authentication fail.", DisconnectReason.NoMoreAuthMethodsAvailable);
}
}
_session.SendMessage(new FailureMessage());
}
