/// <summary>
/// Populates the capabilities flags based on capabilities
/// supported by this server. This method is overridable
/// so that new features can be supported
/// </summary>
/// <param name="reply">The reply object from the FEAT command. The InfoMessages property will
/// contain a list of the features the server supported delimited by a new line '\n' character.</param>
internal void ParseFeatures(FtpResponse reply)
{
foreach (string feat in reply.InfoMessages.Split(new[] {"\r\n"}, StringSplitOptions.RemoveEmptyEntries))
{
if (feat.ToUpper().Trim().StartsWith("MLST") || feat.ToUpper().Trim().StartsWith("MLSD"))
m_Caps |= FtpCapability.MLSD;
else if (feat.ToUpper().Trim().StartsWith("MDTM"))
m_Caps |= FtpCapability.MDTM;
else if (feat.ToUpper().Trim().StartsWith("REST STREAM"))
m_Caps |= FtpCapability.REST;
else if (feat.ToUpper().Trim().StartsWith("SIZE"))
m_Caps |= FtpCapability.SIZE;
else if (feat.ToUpper().Trim().StartsWith("UTF8"))
m_Caps |= FtpCapability.UTF8;
else if (feat.ToUpper().Trim().StartsWith("PRET"))
m_Caps |= FtpCapability.PRET;
else if (feat.ToUpper().Trim().StartsWith("MFMT"))
m_Caps |= FtpCapability.MFMT;
else if (feat.ToUpper().Trim().StartsWith("MFCT"))
m_Caps |= FtpCapability.MFCT;
else if (feat.ToUpper().Trim().StartsWith("MFF"))
m_Caps |= FtpCapability.MFF;
}
}
/// <summary>
/// Initalizes a new instance of a FtpResponseException
/// </summary>
/// <param name="reply">The FtpReply to build the exception from</param>
public FtpCommandException(FtpResponse reply)
: this(reply.Code, reply.Message)
{
}
/// <summary>
/// Retreives a reply from the server. Do not execute this method
/// unless you are sure that a reply has been sent, i.e., you
/// executed a command. Doing so will cause the code to hang
/// indefinitely waiting for a server reply that is never comming.
/// </summary>
/// <returns>FtpReply representing the response from the server</returns>
internal async Task<FtpResponse> GetReplyAsync()
{
var reply = new FtpResponse();
if (!IsConnected)
throw new InvalidOperationException("No connection to the server has been established.");
string buf;
while ((buf = await m_Stream.ReadLineAsync(Encoding)) != null)
{
Match m;
System.Diagnostics.Debug.WriteLine(buf);
if ((m = Regex.Match(buf, "^(?<code>[0-9]{3}) (?<message>.*)$")).Success)
{
reply.Code = m.Groups["code"].Value;
reply.Message = m.Groups["message"].Value;
break;
}
reply.InfoMessages += string.Format("{0}\n", buf);
}
return reply;
}
