public async Task ConnectSocket(Socket socket, EndPoint endpoint, NodeConnectionParameters nodeConnectionParameters, CancellationToken cancellationToken)
{
var isTor = endpoint.IsTor();
if (AllowOnlyTorEndpoints && !isTor)
{
throw new InvalidOperationException($"The Endpoint connector is configured to allow only Tor endpoints and the '{endpoint}' enpoint is not one");
}
var socksSettings = nodeConnectionParameters.TemplateBehaviors.Find <SocksSettingsBehavior>();
var socketEndpoint = endpoint;
var useSocks = isTor || socksSettings?.OnlyForOnionHosts is false || endpoint.IsI2P();
if (useSocks)
{
if (socksSettings?.SocksEndpoint == null)
{
throw new InvalidOperationException("SocksSettingsBehavior.SocksEndpoint is not set but the connection is expecting using socks proxy");
}
socketEndpoint = NormalizeEndpoint(socksSettings.SocksEndpoint);
await socket.ConnectAsync(socketEndpoint, cancellationToken).ConfigureAwait(false);
await SocksHelper.Handshake(socket, endpoint, socksSettings.GetCredentials(), cancellationToken).ConfigureAwait(false);
}
else
{
if (socketEndpoint is DnsEndPoint dnsEndpoint)
{
IDnsResolver resolver = DnsResolver.Instance;
if (socksSettings?.SocksEndpoint != null)
{
resolver = socksSettings.CreateDnsResolver();
}
var address = (await resolver.GetHostAddressesAsync(dnsEndpoint.Host, cancellationToken)).First();
socketEndpoint = new IPEndPoint(address, dnsEndpoint.Port);
}
socketEndpoint = NormalizeEndpoint(socketEndpoint);
await socket.ConnectAsync(socketEndpoint, cancellationToken).ConfigureAwait(false);
}
}
