public async Task<FtpResponse> CloseDataStreamAsync(StreamChannel channel)
{
var finalResponse = await m_Stream.GetReplyAsync<FtpResponse>();
return finalResponse;
}
/// <summary>
/// Connect to the server
/// </summary>
public async Task ConnectAsync()
{
if (m_Stream == null)
{
m_Stream = new StreamChannel();
}
else
{
if (IsConnected) await DisconnectAsync();
}
if (HostName == null)
throw new FtpException("No host has been specified");
if (Credentials == null)
throw new FtpException("No credentials have been specified");
FtpResponse reply;
if (await m_Stream.ConnectAsync(HostName, ServiceName))
{
if (!(reply = await GetReplyAsync()).Success)
{
if (reply.Code == null)
{
throw new IOException("The connection was terminated before a greeting could be read.");
}
throw new FtpCommandException(reply);
}
}
// TODO: If the encryption mode is set to explicit, raise to SSL
if (Credentials != null)
{
await AuthenticateAsync(Credentials);
}
if ((reply = await m_Stream.GetFeaturesAsync()).Success)
m_Caps = ((FtpFeaturesResponse) reply).Features;
// Enable UTF8 if it's available
if (m_Caps.HasFlag(FtpCapability.UTF8))
{
// If the server supports UTF8 it should already be enabled and this
// command should not matter however there are conflicting drafts
// about this so we'll just execute it to be safe.
await m_Stream.SetOptionsAsync("UTF8 ON");
m_Stream.Encoding = Encoding.UTF8;
}
}
