/// <summary>
/// Throws an exception if the server response is not one of the given acceptable codes
/// </summary>
/// <param name="response"></param>
/// <param name="codes"></param>
/// <returns></returns>
private async Task BailIfResponseNotAsync(FTPResponse response, params FTPStatusCode[] codes)
{
if (codes.Any(x => x == response.FTPStatusCode))
{
return;
}
Logger?.LogDebug($"Bailing due to response codes being {response.FTPStatusCode}, which is not one of: [{string.Join(",", codes)}]");
await LogOutAsync();
throw new FTPException(response.ResponseMessage);
}
public async Task <FTPResponse> GetResponseAsync(CancellationToken token = default(CancellationToken))
{
Logger?.LogTrace("Getting Response");
if (Encoding == null)
{
throw new ArgumentNullException(nameof(Encoding));
}
await receiveSemaphore.WaitAsync(token);
try
{
token.ThrowIfCancellationRequested();
var response = new FTPResponse();
var data = new List <string>();
foreach (string line in ReadLines(token))
{
token.ThrowIfCancellationRequested();
Logger?.LogDebug(line);
data.Add(line);
Match match;
if (!(match = Regex.Match(line, "^(?<statusCode>[0-9]{3}) (?<message>.*)$")).Success)
{
continue;
}
Logger?.LogTrace("Finished receiving message");
response.FtpStatusCode = match.Groups["statusCode"].Value.ToStatusCode();
response.ResponseMessage = match.Groups["message"].Value;
break;
}
response.Data = data.ToArray();
return(response);
}
finally
{
receiveSemaphore.Release();
}
}