public static byte[] Create(InitialHandshakePacket handshake, ConnectionSettings cs)
{
// TODO: verify server capabilities
var writer = CreateCapabilitiesPayload(handshake.ProtocolCapabilities, cs);
writer.WriteNullTerminatedString(cs.UserID);
var authenticationResponse = AuthenticationUtility.CreateAuthenticationResponse(handshake.AuthPluginData, 0, cs.Password);
writer.WriteByte((byte)authenticationResponse.Length);
writer.Write(authenticationResponse);
if (!string.IsNullOrWhiteSpace(cs.Database))
{
writer.WriteNullTerminatedString(cs.Database);
}
if ((handshake.ProtocolCapabilities & ProtocolCapabilities.PluginAuth) != 0)
{
writer.WriteNullTerminatedString("mysql_native_password");
}
return(writer.ToBytes());
}
public async Task ConnectAsync(ConnectionSettings cs, IOBehavior ioBehavior, CancellationToken cancellationToken)
{
var connected = false;
if (cs.ConnectionType == ConnectionType.Tcp)
{
connected = await OpenTcpSocketAsync(cs, ioBehavior, cancellationToken).ConfigureAwait(false);
}
else if (cs.ConnectionType == ConnectionType.Unix)
{
connected = await OpenUnixSocketAsync(cs, ioBehavior, cancellationToken).ConfigureAwait(false);
}
if (!connected)
{
throw new MyCatException("Unable to connect to any of the specified MySQL hosts.");
}
var socketByteHandler = new SocketByteHandler(m_socket);
m_payloadHandler = new StandardPayloadHandler(socketByteHandler);
var payload = await ReceiveAsync(ioBehavior, cancellationToken).ConfigureAwait(false);
var reader = new ByteArrayReader(payload.ArraySegment.Array, payload.ArraySegment.Offset, payload.ArraySegment.Count);
var initialHandshake = new InitialHandshakePacket(reader);
// if PluginAuth is supported, then use the specified auth plugin; else, fall back to protocol capabilities to determine the auth type to use
string authPluginName;
if ((initialHandshake.ProtocolCapabilities & ProtocolCapabilities.PluginAuth) != 0)
{
authPluginName = initialHandshake.AuthPluginName;
}
else
{
authPluginName = (initialHandshake.ProtocolCapabilities & ProtocolCapabilities.SecureConnection) == 0 ? "mysql_old_password" : "mysql_native_password";
}
if (authPluginName != "mysql_native_password")
{
throw new NotSupportedException("Authentication method '{0}' is not supported.".FormatInvariant(initialHandshake.AuthPluginName));
}
ServerVersion = new ServerVersion(Encoding.ASCII.GetString(initialHandshake.ServerVersion));
ConnectionId = initialHandshake.ConnectionId;
AuthPluginData = initialHandshake.AuthPluginData;
if (cs.UseCompression && (initialHandshake.ProtocolCapabilities & ProtocolCapabilities.Compress) == 0)
{
cs = cs.WithUseCompression(false);
}
if (cs.SslMode != MyCatSslMode.None)
{
await InitSslAsync(initialHandshake.ProtocolCapabilities, cs, ioBehavior, cancellationToken).ConfigureAwait(false);
}
var response = HandshakeResponse41Packet.Create(initialHandshake, cs);
payload = new PayloadData(new ArraySegment <byte>(response));
await SendReplyAsync(payload, ioBehavior, cancellationToken).ConfigureAwait(false);
payload = await ReceiveReplyAsync(ioBehavior, cancellationToken).ConfigureAwait(false);
OkPayload.Create(payload);
if (cs.UseCompression)
{
m_payloadHandler = new CompressedPayloadHandler(m_payloadHandler.ByteHandler);
}
}
