Console FTP in C#

using System;
using System.Text;
using System.Collections;
using System.IO;

namespace HB.Web.Ftp
{
	public class WindowsFileNode: FileNode
	{
		/// <summary>
		/// Creates a new FTP file.
		/// </summary>
		/// <param name="name">The name of the file.</param>
		/// <param name="fullname">The full path of the file.</param>
		/// <param name="isDirectory">Indicates if the file is a directory.</param>
		/// <param name="lastWriteTime">The last time the file was written to.</param>
		/// <param name="length">The filesize.</param>
		/// <param name="ext">The file extension of the file.</param>
		/// <param name="dirName">The full path of the file's directory.</param>
		/// <exception cref="ArgumentNullException">When parameter name, fullname
		/// or dirName is null.</exception>
		public WindowsFileNode(string name, string fullname, bool isDirectory, string ext,
			DateTime lastWriteTime, long length, string dirName)
			: base(name, fullname, isDirectory, lastWriteTime, length, dirName, ext)
		{
		}

		public WindowsFileNode() : base()
		{
		}

		public WindowsFileNode(WindowsFileNode node) : base(node)
		{
		}

		static WindowsFileNode()
		{
			numFormat = new System.Globalization.NumberFormatInfo();
			numFormat.NumberDecimalDigits = 0;
		}

		/// <summary>
		/// parses the dir listing and determines the filesize, filename, creation date, etc.
		/// </summary>
		/// <returns>false if the listing wasn't in an acceptable format</returns>
		public override FileNode Parse(string text, string absolutePath)
		{
			try
			{
				//12-29-02  11:41PM <DIR> Apps
				//01-34-67--01-3456
				string month, day, year;
				string ext = "";
				string[] test = text.Split(Convert.ToChar(" "));
				if(test.Length < 6)
					throw new ApplicationException();
				string parse = text;
				month = parse.Substring(0, 2);
				day = parse.Substring(3, 2);
				year = parse.Substring(6, 2);
				string hour = parse.Substring(10, 2);
				string min = parse.Substring(13, 2);
				string tod = parse.Substring(15, 2);
				parse = parse.Substring(17);
				long size = 0;
				bool isDir = false;
				while(parse.StartsWith(" "))
					parse = parse.Substring(1);
				if(parse.StartsWith("<DIR>"))
				{
					isDir = true;
					size = 0;
					parse = parse.Substring(5);
					while(parse.StartsWith(" "))
						parse = parse.Substring(1);
				}
				else
				{
					isDir = false;
					size = long.Parse(parse.Split(char.Parse(" "))[0]);
					parse = parse.Substring(parse.Split(char.Parse(" "))[0].Length);
				}
				string filename = parse;
					
				if(year.StartsWith("0")) year = "20" + year;
				else year = "19" + year;
				int hr = int.Parse(hour);
				if(tod.ToUpper()== "PM")
					if(hr != 12) hr+=12;
					else
						if(hr == 12)
						hr = 0;
				DateTime dt = DateTime.Parse(month + " " + day + " " + year, new System.Globalization.CultureInfo("en-US"));
				dt = new DateTime(dt.Year, dt.Month, dt.Day, hr, int.Parse(min), 0);		
				//TODO: another unsure
				//if(fullPath == "/") fullPath = fullPath + filename;
				string path = absolutePath;
				if(path.EndsWith("/")) path = path + filename;
				else path = path + "/" + filename;
				return new WindowsFileNode(filename, path, isDir, ext, dt, size, absolutePath);
			}
			catch
			{
				throw new FormatException("A WindowsFileNode could not be created using the following text: " + text);
			}
		}

		public override FileNode[] FromFtpList(string list, string path)
		{
			StringReader reader = null;
			try
			{
				reader = new StringReader(list);
				ArrayList nodes = new ArrayList();
				string listing;
				while(reader.Peek() != -1)
				{
					listing = reader.ReadLine();
					nodes.Add(Parse(listing, path));
				}
				return (FileNode[]) nodes.ToArray(typeof(WindowsFileNode));
			}
			finally
			{
				try
				{
					reader.Close();
				}
				catch{}
			}
		}

		public override void Delete(DirectoryList list, System.IO.TextWriter clientOutput, System.IO.TextWriter serverOutput)
		{
			throw new NotImplementedException();
		}

		public override FileNode[] GetDirectories(DirectoryList list, System.IO.TextWriter clientOutput, System.IO.TextWriter serverOutput)
		{
			byte[] dirList = list.GetList(DirectoryName, clientOutput, serverOutput);
			ArrayList fileNodes = new ArrayList(FromFtpList(Encoding.ASCII.GetString(dirList), DirectoryName));
			for(int i = 0; i < fileNodes.Count; i++)
				if(((FileNode) fileNodes[i]).IsDirectory)
					fileNodes.RemoveAt(i--);
			return (FileNode[]) fileNodes.ToArray(typeof(WindowsFileNode));
		}

		public override FileNode[] GetFiles(DirectoryList list, System.IO.TextWriter clientOutput, System.IO.TextWriter serverOutput)
		{
			byte[] dirList = list.GetList(DirectoryName, clientOutput, serverOutput);
			ArrayList fileNodes = new ArrayList(FromFtpList(Encoding.ASCII.GetString(dirList), DirectoryName));
			for(int i = 0; i < fileNodes.Count; i++)
				if(!((FileNode) fileNodes[i]).IsDirectory)
					fileNodes.RemoveAt(i--);
			return (FileNode[]) fileNodes.ToArray(typeof(WindowsFileNode));
		}

		public override string ToString()
		{	//06/06/2003  08:15p      <DIR>          WINNT
			//08/12/2002  10:05p           2,359,352 nightelfboxart-1024x.bmp
			StringBuilder line = new StringBuilder(LastWriteTime.ToString("MM/dd/yyyy  hh:mmt      ").ToLower());
			if(IsDirectory)
				line = line.Append("<DIR>          ");
			else
				line = line.Append(LeftPad(Length.ToString("n", numFormat), 14) + " ");
			line = line.Append(Name);
			return line.ToString();
		}

		public override object Clone()
		{
			return new WindowsFileNode(this);
		}

		private static System.Globalization.NumberFormatInfo numFormat;
	}
}