private FileStruct ParseFileStructFromWindowsStyleRecord(string Record)
{
//Assuming the record style as
// 02-03-04 07:46PM <DIR> Append
FileStruct f = new FileStruct();
string processstr = Record.Trim();
string[] splitArray = processstr.Split(" \t".ToCharArray(), 2, StringSplitOptions.RemoveEmptyEntries);
string dateStr = splitArray[0];
processstr = splitArray[1];
string timeStr = processstr.Substring(0, 7);
processstr = (processstr.Substring(7, processstr.Length - 7)).Trim();
ConvertDate.Parse(dateStr, timeStr, out f.CreateTime);
f.CreateTimeString = dateStr + timeStr;
if (processstr.Substring(0, 5) == "<DIR>")
{
f.IsDirectory = true;
processstr = (processstr.Substring(5, processstr.Length - 5)).Trim();
}
else
{
f.IsDirectory = false;
string[] strs = processstr.Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
long.TryParse(strs[0].Trim(), out f.Size);
processstr = strs[1].Trim();
}
f.Name = processstr;
return f;
}
/// <summary>
/// Returns true if file exists
/// | if file does not exist, method returns -1
/// | dummy method of FileExists
/// </summary>
/// <param name="remoteDirectory">directory on ftpServer</param>
/// <param name="remoteFileName">filename on ftpServer</param>
/// <param name="remFileSize">remote fileSize if file exists else -1</param>
/// <returns>True if file exists else false</returns>
public bool FileExists(string remoteDirectory, string remoteFileName, out long remFileSize)
{
var success = false;
remFileSize = 0;
var request = WebRequest.Create(new Uri("ftp://" + _host + ":" + Port + "/" + remoteDirectory + "/" + remoteFileName)) as FtpWebRequest;
if (request != null)
{
request.Credentials = new NetworkCredential(UserName, Password);
request.Timeout = TimeOut;
request.UsePassive = true;
request.KeepAlive = KeepAlive;
request.Method = WebRequestMethods.Ftp.GetFileSize;
try
{
using (FtpWebResponse response = request.GetResponse() as FtpWebResponse)
{
FileStruct fstruct = new FileStruct
{
Size =
long.Parse(response.StatusDescription.Split(' ')[1].Replace("\r", "").Replace("\n", ""))
};
response.Close();
remFileSize = fstruct.Size;
success = true;
}
}
catch
{
// ignored
}
}
return success;
}
/// <summary>
/// Parses string to FileStruct
/// </summary>
/// <param name="ftpRecord">String including information of file/directory</param>
/// <returns>FileStruct</returns>
public FileStruct Parse(string ftpRecord)
{
FileStruct f = new FileStruct();
FileListStyle directoryListStyle = GuessFileListStyle(ftpRecord);
if (directoryListStyle == FileListStyle.Unknown || ftpRecord == "") return f;
f.Name = "..";
switch (directoryListStyle)
{
case FileListStyle.UnixStyle:
f = ParseFileStructFromUnixStyleRecord(ftpRecord);
break;
case FileListStyle.WindowsStyle:
f = ParseFileStructFromWindowsStyleRecord(ftpRecord);
break;
case FileListStyle.Unknown:
throw new ArgumentOutOfRangeException();
default:
throw new ArgumentOutOfRangeException();
}
return f;
}
private FileStruct ParseFileStructFromUnixStyleRecord(string Record)
{
//Assuming record style as
// dr-xr-xr-x 1 owner group 0 Nov 25 2002 bussys
FileStruct f = new FileStruct();
string processstr = Record.Trim();
f.Flags = processstr.Substring(0, 9);
f.IsDirectory = (f.Flags[0] == 'd');
processstr = (processstr.Substring(11)).Trim();
_cutSubstringFromStringWithTrim(ref processstr, ' ', 0); //skip one part
f.Owner = _cutSubstringFromStringWithTrim(ref processstr, ' ', 0);
f.Group = _cutSubstringFromStringWithTrim(ref processstr, ' ', 0);
long.TryParse(_cutSubstringFromStringWithTrim(ref processstr, ' ', 0), out f.Size); //skip one part
f.CreateTime = DateTime.Parse(_cutSubstringFromStringWithTrim(ref processstr, ' ', 8));
f.Name = processstr; //Rest of the part is name
return f;
}
