private Response NameListOperation(NetworkStream dataStream, string pathname)
{
StreamWriter dataWriter = new StreamWriter(dataStream, _currentEncoding);
IEnumerable<string> files = Directory.EnumerateFiles(pathname);
foreach (string file in files)
{
dataWriter.WriteLine(Path.GetFileName(file));
dataWriter.Flush();
}
FtpLogEntry logEntry = new FtpLogEntry
{
Date = DateTime.Now,
CIP = ClientIP,
CSMethod = "NLST",
CSUsername = _username,
SCStatus = "226"
};
_log.Info(logEntry);
return GetResponse(FtpResponses.TRANSFER_SUCCESSFUL);
}
private Response ListOperation(NetworkStream dataStream, string pathnametmp)
{
DateTime now = DateTime.Now;
string pathname;
IEnumerable<string> directories;
StreamWriter dataWriter = new StreamWriter(dataStream, _currentEncoding);
if (pathnametmp.Contains("-"))
{
string[] strparam=pathnametmp.Split ('-');
pathname = strparam[0];
}
else
{
pathname=pathnametmp;
}
directories = Directory.EnumerateDirectories(pathname);
foreach (string dir in directories)
{
DateTime editDate = Directory.GetLastWriteTime(dir);
string date = editDate < now.Subtract(TimeSpan.FromDays(180)) ?
editDate.ToString("MMM dd yyyy", CultureInfo.InvariantCulture) :
editDate.ToString("MMM dd HH:mm", CultureInfo.InvariantCulture);
dataWriter.Write("drwxr-xr-x 2 2003 2003 4096 ");
dataWriter.Write(date);
dataWriter.Write(' ');
dataWriter.WriteLine(Path.GetFileName(dir));
dataWriter.Flush();
}
IEnumerable<string> files = Directory.EnumerateFiles(pathname);
foreach (string file in files)
{
FileInfo f = new FileInfo(file);
string date = f.LastWriteTime < now.Subtract(TimeSpan.FromDays(180)) ?
f.LastWriteTime.ToString("MMM dd yyyy", CultureInfo.InvariantCulture) :
f.LastWriteTime.ToString("MMM dd HH:mm", CultureInfo.InvariantCulture);
dataWriter.Write("-rw-r--r-- 2 2003 2003 ");
string length = f.Length.ToString(CultureInfo.InvariantCulture);
if (length.Length < 8)
{
for (int i = 0; i < 8 - length.Length; i++)
{
dataWriter.Write(' ');
}
}
dataWriter.Write(length);
dataWriter.Write(' ');
dataWriter.Write(date);
dataWriter.Write(' ');
dataWriter.WriteLine(f.Name);
dataWriter.Flush();
f = null;
}
FtpLogEntry logEntry = new FtpLogEntry
{
Date = now,
CIP = ClientIP,
CSMethod = "LIST",
CSUsername = _username,
SCStatus = "226"
};
_log.Info(logEntry);
return GetResponse(FtpResponses.TRANSFER_SUCCESSFUL);
}
protected override Response HandleCommand(Command cmd)
{
Response response = null;
FtpLogEntry logEntry = new FtpLogEntry
{
Date = DateTime.Now,
CIP = ClientIP,
CSUriStem = cmd.RawArguments
};
if (!_validCommands.Contains(cmd.Code))
{
response = CheckUser();
}
// Reset rename from if we don't receive a rename to command. These must be issued back-to-back.
if (cmd.Code != "RNTO")
{
_renameFrom = null;
}
if (response == null)
{
switch (cmd.Code)
{
case "USER":
response = User(cmd.Arguments.FirstOrDefault());
break;
case "PASS":
response = Password(cmd.Arguments.FirstOrDefault());
logEntry.CSUriStem = "******";
break;
case "CWD":
response = ChangeWorkingDirectory(cmd.Arguments.FirstOrDefault());
break;
case "CDUP":
response = ChangeWorkingDirectory("..");
break;
case "QUIT":
response = GetResponse(FtpResponses.QUIT);
break;
case "REIN":
_currentUser = null;
_username = null;
_dataClient = null;
_currentCulture = CultureInfo.CurrentCulture;
_currentEncoding = Encoding.Default;
ControlStreamEncoding = Encoding.Default;
response = GetResponse(FtpResponses.SERVICE_READY);
break;
case "PORT":
response = Port(cmd.RawArguments);
logEntry.CPort = _dataEndpoint.Port.ToString(CultureInfo.InvariantCulture);
break;
case "PASV":
response = Passive();
logEntry.SPort = ((IPEndPoint)_passiveListener.LocalEndpoint).Port.ToString(CultureInfo.InvariantCulture);
break;
case "TYPE":
response = Type(cmd.Arguments.FirstOrDefault(), cmd.Arguments.Skip(1).FirstOrDefault());
break;
case "STRU":
response = Structure(cmd.Arguments.FirstOrDefault());
break;
case "MODE":
response = Mode(cmd.Arguments.FirstOrDefault());
break;
case "RNFR":
_renameFrom = cmd.Arguments.FirstOrDefault();
response = GetResponse(FtpResponses.RENAME_FROM);
break;
case "RNTO":
response = Rename(_renameFrom, cmd.Arguments.FirstOrDefault());
break;
case "DELE":
response = Delete(cmd.Arguments.FirstOrDefault());
break;
case "RMD":
response = RemoveDir(cmd.Arguments.FirstOrDefault());
break;
case "MKD":
response = CreateDir(cmd.Arguments.FirstOrDefault());
break;
case "PWD":
response = PrintWorkingDirectory();
break;
case "RETR":
response = Retrieve(cmd.Arguments.FirstOrDefault());
logEntry.Date = DateTime.Now;
break;
case "STOR":
response = Store(cmd.Arguments.FirstOrDefault());
logEntry.Date = DateTime.Now;
break;
case "STOU":
response = StoreUnique();
logEntry.Date = DateTime.Now;
break;
case "APPE":
response = Append(cmd.Arguments.FirstOrDefault());
logEntry.Date = DateTime.Now;
break;
case "LIST":
string p = cmd.Arguments.FirstOrDefault();
if (!string.IsNullOrEmpty(p))
{
if (p.Contains("-al")) p = p.Replace("-al", string.Empty);
if (string.IsNullOrEmpty(p)) p = null;
}
response = List(p ?? CurrentDirectory);
logEntry.Date = DateTime.Now;
break;
case "SYST":
response = GetResponse(FtpResponses.SYSTEM);
break;
case "NOOP":
response = GetResponse(FtpResponses.OK);
break;
case "ACCT":
response = Account(cmd.Arguments.FirstOrDefault());
break;
case "ALLO":
response = GetResponse(FtpResponses.OK);
break;
case "NLST":
response = NameList(cmd.Arguments.FirstOrDefault() ?? CurrentDirectory);
break;
case "SITE":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
case "STAT":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
case "HELP":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
case "SMNT":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
case "REST":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
case "ABOR":
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
// Extensions defined by rfc 2228
case "AUTH":
response = Auth(cmd.Arguments.FirstOrDefault());
break;
// Extensions defined by rfc 2389
case "FEAT":
response = GetResponse(FtpResponses.FEATURES);
break;
case "OPTS":
response = Options(cmd.Arguments);
break;
// Extensions defined by rfc 3659
case "MDTM":
response = FileModificationTime(cmd.Arguments.FirstOrDefault());
break;
case "SIZE":
response = FileSize(cmd.Arguments.FirstOrDefault());
break;
// Extensions defined by rfc 2428
case "EPRT":
response = EPort(cmd.RawArguments);
logEntry.CPort = _dataEndpoint.Port.ToString(CultureInfo.InvariantCulture);
break;
case "EPSV":
response = EPassive();
logEntry.SPort = ((IPEndPoint)_passiveListener.LocalEndpoint).Port.ToString(CultureInfo.InvariantCulture);
break;
// Extensions defined by rfc 2640
case "LANG":
response = Language(cmd.Arguments.FirstOrDefault());
break;
default:
response = GetResponse(FtpResponses.NOT_IMPLEMENTED);
break;
}
}
logEntry.CSMethod = cmd.Code;
logEntry.CSUsername = _username;
logEntry.SCStatus = response.Code;
_log.Info(logEntry);
return response;
}
private Response AppendOperation(NetworkStream dataStream, string pathname)
{
long bytes = 0;
using (FileStream fs = new FileStream(pathname, FileMode.Append, FileAccess.Write, FileShare.None, BUFFER_SIZE, FileOptions.SequentialScan))
{
bytes = CopyStream(dataStream, fs);
}
FtpLogEntry logEntry = new FtpLogEntry
{
Date = DateTime.Now,
CIP = ClientIP,
CSMethod = "APPE",
CSUsername = _username,
SCStatus = "226",
CSBytes = bytes.ToString(CultureInfo.InvariantCulture)
};
_log.Info(logEntry);
return GetResponse(FtpResponses.TRANSFER_SUCCESSFUL);
}
private Response StoreOperation(NetworkStream dataStream, string pathname)
{
long bytes = 0;
using (FileStream fs = new FileStream(pathname, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, BUFFER_SIZE, FileOptions.SequentialScan))
{
bytes = CopyStream(dataStream, fs, FtpPerformanceCounters.IncrementBytesReceived);
}
FtpLogEntry logEntry = new FtpLogEntry
{
Date = DateTime.Now,
CIP = ClientIP,
CSMethod = "STOR",
CSUsername = _username,
SCStatus = "226",
CSBytes = bytes.ToString(CultureInfo.InvariantCulture)
};
_log.Info(logEntry);
FtpPerformanceCounters.IncrementFilesReceived();
return GetResponse(FtpResponses.TRANSFER_SUCCESSFUL);
}