/// <summary>
/// Does the basic command. In the NNTP protocol, a command is sent and the server
/// possibly returns some text and finally is returns a response code. If a server
/// returned line equal a single "." we are done and nothing more is returned. If
/// the server returns a ".." (double period) the leading period is removed and the
/// remaining string is returned.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="expectedResponseCode">The expected response code.</param>
/// <returns></returns>
protected IEnumerable <string> DoBasicCommand(string command, int expectedResponseCode)
{
ValidateConnectionState();
NntpReaderWriter.WriteCommand(command);
NntpReaderWriter.ReadResponse();
if (NntpReaderWriter.LastResponseCode != expectedResponseCode)
{
throw new NntpResponseException(Resource.ErrorMessage12, NntpReaderWriter.LastResponse);
}
do
{
string line = NntpReaderWriter.ReadLine();
if (line.Equals("."))
{
break;
}
else if (line.StartsWith(".."))
{
line = line.Substring(1);
}
yield return(line);
} while (true);
}
/// <summary>
/// Does the basic command. In the NNTP protocol, a command is sent and the server
/// possibly returns some text and finally is returns a response code. If a server
/// returned line equal a single "." we are done and nothing more is returned. If
/// the server returns a ".." (double period) the leading period is removed and the
/// remaining string is returned.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="expectedResponseCode">The expected response code.</param>
/// <returns></returns>
protected IEnumerable <string> DoBasicCommand(string command, int expectedResponseCode)
{
ValidateConnectionState();
NntpReaderWriter.WriteCommand(command);
NntpReaderWriter.ReadResponse();
if (NntpReaderWriter.LastResponseCode != expectedResponseCode)
{
throw new NntpResponseException(NntpErrorMessages.ERROR_12, NntpReaderWriter.LastResponse);
}
do
{
string line = NntpReaderWriter.ReadLine();
if (line.Equals("."))
{
break;
}
else if (line.Length > 1)
{
if (line[0].Equals('.') && line[1].Equals('.'))
{
line = line.Substring(1);
}
}
yield return(line);
} while (true);
}