private static string ParseStouReply(FTPReply reply)
{
string fileName;
int i = reply.Message.LastIndexOf(' ');
if (i < 0)
throw new FTPProtocolException(reply);
fileName = reply.Message.Substring(i + 1, reply.Message.Length - i - 2);
return fileName;
}
private FTPReply GetReply()
{
try
{
FTPReply reply = new FTPReply();
bool replyDone = false;
do
{
string replyLine = ctrlSr.ReadLine();
Match m = Regex.Match(replyLine, @"^([0-9]{3})([\s\-])(.*)$");
if (m.Success)
{
int code = int.Parse(m.Groups[1].Value);
string messageLine = m.Groups[3].Value;
replyDone = (m.Groups[2].Value == " ");
if (reply.Code == 0)
{
reply.Code = code;
reply.Message = messageLine;
}
else // Multiline message
{
if (reply.Code != code)
throw new FTPReplyParseException(replyLine);
reply.Message += "\r\n" + messageLine;
}
}
else // Multiline message
{
if (reply.Code == 0)
throw new FTPReplyParseException(replyLine);
reply.Message += "\r\n" + replyLine.TrimStart();
}
}
while (!replyDone);
waitingCompletionReply = (reply.Code < 200);
if (reply.Code >= 400)
throw new FTPCommandException(reply);
return reply;
}
catch (Exception)
{
waitingCompletionReply = false;
throw;
}
}
private static IPEndPoint ParsePasvReply(FTPReply reply)
{
IPEndPoint dataEndPoint;
int i = reply.Message.IndexOf('(');
if (i < 0)
throw new FTPProtocolException(reply);
int j = reply.Message.IndexOf(')', i + 1);
if (j < 0)
throw new FTPProtocolException(reply);
string[] parts = reply.Message.Substring(i + 1, j - i - 1).Split(',');
if (parts.Length != 6)
throw new FTPProtocolException(reply);
byte[] addr = new byte[4];
for (i = 0; i < addr.Length; i++)
addr[i] = byte.Parse(parts[i]);
int port = byte.Parse(parts[4]) * 256 + byte.Parse(parts[5]);
dataEndPoint = new IPEndPoint(new IPAddress(addr), port);
return dataEndPoint;
}
private static string ParsePasswordReply(FTPReply reply)
{
int i = reply.Message.IndexOf('\"');
if (i < 0)
throw new FTPProtocolException(reply);
int j = reply.Message.IndexOf('\"', i + 1);
if (j < 0)
throw new FTPProtocolException(reply);
string dirName = reply.Message.Substring(i + 1, j - i - 1);
return dirName;
}
public FTPProtocolException(FTPReply reply) : base("Invalid FTP protocol reply: " + reply.ToString())
{
this.reply = reply;
}
public FTPCommandException(FTPReply reply)
: base(reply.Message)
{
this.errorCode = reply.Code;
}