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FTPC.cs
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FTPC.cs
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// FTP Component for .NET
// April 2002 by Jérôme Lacaille
// Properties :
// Username : account username
// Password : account password
// Hostname : FTP Host server
// Port : FTP Host port
// LocalFolder : local path
// RemoteFolder: remote path
// FileCount : Nb file on the current remote folder
// Type : Transfert Type (Ascii, Binary)
// Methods :
// Connect()
// Disconnect() QUIT
// Login()
// Abort() ABORT
// SystemInfo() SYST
// Help() HELP
// Stat() STAT
// Dir() LIST
// DirChange() Select directory
// DirUp() CDUP
// DirCreate(string filename) MKD
// FileDownload()
// FileUpload()
// Delete()
// Rename()
//
// This component use asyncronous methods
// Each command result fire an event.
// Events
// Connected Succesful Connection to the remote host
// Logged Login succesful
// FileDownloadCompleted Download completed
// FileUploadCompleted Upload Completed
// DirCompleted Dir Completed
// Error
// Message
// FTPCommand
// Transfered
// ConnectionTerminated
// TO DO
// Change File Array to File Collection
using System;
using System.ComponentModel;
namespace FTPCom
{
// Delegate declaration.
//
public delegate void FTPEventHandler(object sender, FTPEventArgs e);
/// <summary>
/// Main Class for FTP Component
/// Provide simple interface
/// </summary>
public class FTPC : System.ComponentModel.Component
{
private string m_username; // username account
private string m_password; // username password
private string m_hostname; // hostname
private int m_port; // host port
private string m_localfolder; // local folder string path
private string m_remotefolder; // remote folder string path
private string m_type;
private FTPMonitor m_ftpmonitor; // FTP Monitor Class
private int m_filecount = 0; // Remote folder file count
private ServerFileData[] m_files = new ServerFileData[255]; // remote file array !!! TO DO
public FTPC()
{
m_username = string.Empty;
m_password = string.Empty;
m_hostname = string.Empty;
m_port = 21; // Default port
m_localfolder = "c:\\temp"; // Local folder !! TO DO
m_remotefolder = string.Empty;
m_type = "A";
m_ftpmonitor = new FTPMonitor(this);
}
/// <summary>
/// Component properties
/// </summary>
[
Category("Account"),
Description("FTP account username"),
]
public string Username
{
get
{
return m_username;
}
set
{
m_username = value;
}
}
[
Category("Account"),
Description("FTP account password"),
]
public string Password
{
get
{
return m_password;
}
set
{
m_password = value;
}
}
[
Category("FTP Server"),
Description("FTP server hostname"),
]
public string Hostname
{
get
{
return m_hostname;
}
set
{
m_hostname = value;
}
}
[
Category("FTP Server"),
Description("FTP Server port"),
DefaultValue(22)
]
public int Port
{
get
{
return m_port;
}
set
{
m_port = value;
}
}
[
Category("Directory"),
Description("Local directory"),
]
public string LocalFolder
{
get
{
return m_localfolder;
}
set
{
m_localfolder = value;
}
}
[
Category("Directory"),
Description("Remote directory"),
]
public string RemoteFolder
{
get
{
return m_remotefolder;
}
set
{
m_remotefolder = value;
}
}
private int GetFileIndex(string FileName)
{
int ires = -1;
int i;
for (i = 0; i < m_filecount; i++)
{
if (FileName == m_files[i].fileName)
{
ires = i;
break;
}
}
return ires;
}
/// <summary>
/// Connection to remote Host
/// </summary>
/// <returns></returns>
public bool Connect()
{
m_ftpmonitor.Connect(m_hostname, m_port);
return true;
}
/// <summary>
/// Login
/// </summary>
/// <returns></returns>
public bool Login()
{
bool bres = false;
if (m_username != string.Empty && m_password != string.Empty)
{
m_ftpmonitor.SendCommand(new FTPCommand("USER", 331, m_username));
m_ftpmonitor.SendCommand(new FTPCommand("PASS", 230, m_password));
m_ftpmonitor.SendCommand(new FTPCommand("SYST", 0));
m_ftpmonitor.SendCommand(new FTPCommand("PWD", 257)); // Will be accessible by RemoteFolder Property
m_ftpmonitor.SendCommand(new FTPCommand("TYPE", 200, "A"));
bres = true;
}
return bres;
}
public void Disconnect()
{
m_ftpmonitor.SendCommand(new FTPCommand("QUIT", 221));
}
public void Dir()
{
m_ftpmonitor.SendCommand(new FTPCommand("TYPE I", 200));
m_ftpmonitor.SendCommand(new FTPCommand("LIST", 226));
}
public bool DirChange(int FileIndex)
{
bool bres = false;
if (FileIndex < m_filecount)
{
m_ftpmonitor.SendCommand(new FTPCommand("CWD", 250, m_files[FileIndex].fileName));
bres = true;
}
return bres;
}
public bool DirChange(string FileName)
{
bool bres = false;
int FileIndex = GetFileIndex(FileName);
if (FileIndex > -1)
bres = DirChange(FileIndex);
return bres;
}
public void DirUp()
{
m_ftpmonitor.SendCommand(new FTPCommand("CDUP", 250));
}
public void DirCreate(string FileName)
{
m_ftpmonitor.SendCommand(new FTPCommand("MKD", 257, FileName));
}
public void Abort()
{
m_ftpmonitor.SendCommand(new FTPCommand("ABOR", 0));
}
public void SystemInfo()
{
m_ftpmonitor.SendCommand(new FTPCommand("SYST", 0));
}
public void Help()
{
m_ftpmonitor.SendCommand(new FTPCommand("HELP", 0));
}
public void Stat()
{
m_ftpmonitor.SendCommand(new FTPCommand("STAT", 0));
}
/// <summary>
/// Download file whose index equal FileIndex
/// </summary>
/// <param name="FileIndex"></param>
/// <returns></returns>
public bool FileDownload(int fileindex)
{
bool bres = false;
if (fileindex < m_filecount)
{
m_ftpmonitor.SendCommand(new FTPCommand("TYPE I", 200));
m_ftpmonitor.SendCommand(new FTPCommand("RETR", 226, m_files[fileindex].fileName, m_files[fileindex].size));
bres = true;
}
return bres;
}
/// <summary>
/// Download file whose name equal Filename
/// </summary>
/// <param name="filename"></param>
public bool FileDownload(string FileName)
{
bool bres = false;
int FileIndex = GetFileIndex(FileName);
if (FileIndex > -1)
bres = FileDownload(FileIndex);
return bres;
}
public void FileUpload(string FileName, int FileSize)
{
m_ftpmonitor.SendCommand(new FTPCommand("TYPE I", 200));
m_ftpmonitor.SendCommand(new FTPCommand("STOR", 226, FileName, FileSize));
}
public bool Delete(int FileIndex)
{
bool bres = false;
if (FileIndex < m_filecount)
{
if (m_files[FileIndex].isDirectory)
m_ftpmonitor.SendCommand(new FTPCommand("RMD", 250, m_files[FileIndex].fileName));
else
m_ftpmonitor.SendCommand(new FTPCommand("DELE", 250, m_files[FileIndex].fileName));
bres = true;
}
return bres;
}
public bool Delete(string FileName)
{
bool bres = false;
int FileIndex = GetFileIndex(FileName);
if (FileIndex > -1)
bres = Delete(FileIndex);
return bres;
}
public bool Rename(int FileIndex, string NewFileName)
{
bool bres = false;
if (FileIndex < m_filecount)
{
m_ftpmonitor.SendCommand(new FTPCommand("RNFR", 0, m_files[FileIndex].fileName));
m_ftpmonitor.SendCommand(new FTPCommand("RNTO", 0, NewFileName));
bres = true;
}
return bres;
}
public bool Rename(string FileName, string NewFilename)
{
bool bres = false;
int FileIndex = GetFileIndex(FileName);
if (FileIndex > -1)
bres = Rename(FileIndex, NewFilename);
return bres;
}
public event FTPEventHandler Connected;
public event FTPEventHandler ConnectionFailure;
public event FTPEventHandler Logged;
public event FTPEventHandler LoginFailure;
public event FTPEventHandler FileDownloadCompleted;
public event FTPEventHandler FileUploadCompleted;
public event FTPEventHandler DirCompleted;
public event FTPEventHandler Error;
public event FTPEventHandler Message;
public event FTPEventHandler FTPCommand;
public event FTPEventHandler Transfered;
public event FTPEventHandler ConnectionTerminated;
public virtual void OnTransfered(FTPEventArgs e)
{
if (Transfered != null)
{
Transfered(this, e);
}
}
public virtual void OnError(FTPEventArgs e)
{
if (Error != null)
{
Error(this, e);
}
}
public virtual void OnMessage(FTPEventArgs e)
{
if (Message != null)
{
Message(this, e);
}
}
public virtual void OnFTPCommand(FTPEventArgs e)
{
if (FTPCommand != null)
{
FTPCommand(this, e);
}
}
public virtual void OnConnected(FTPEventArgs e)
{
if (Connected != null)
{
Connected(this, e);
}
}
public virtual void OnConnectionFailure(FTPEventArgs e)
{
if (ConnectionFailure != null)
{
ConnectionFailure(this, e);
}
}
public virtual void OnLogged(FTPEventArgs e)
{
if (Logged != null)
{
Logged(this, e);
}
}
public virtual void OnLoginFailure(FTPEventArgs e)
{
if (LoginFailure != null)
{
LoginFailure(this, e);
}
}
public virtual void OnFileDownloadCompleted(FTPEventArgs e)
{
if (FileDownloadCompleted != null)
{
FileDownloadCompleted(this, e);
}
}
public virtual void OnFileUploadCompleted(FTPEventArgs e)
{
if (FileUploadCompleted != null)
{
FileUploadCompleted(this, e);
}
}
public virtual void OnDirCompleted(FTPEventArgs e)
{
if (DirCompleted != null)
{
ParseUnixDirList(e.Message);
DirCompleted(this, e);
}
}
public virtual void OnConnectionterminatedCompleted(FTPEventArgs e)
{
if (ConnectionTerminated != null)
{
ConnectionTerminated(this, e);
}
}
private ServerFileData ParseDosDirLine(string line)
{
ServerFileData sfd = new ServerFileData();
try
{
string[] parsed = new string[3];
int index = 0;
int position = 0;
// Parse out the elements
position = line.IndexOf(' ');
while (index < parsed.Length)
{
parsed[index] = line.Substring(0, position);
line = line.Substring(position);
line = line.Trim();
index++;
position = line.IndexOf(' ');
}
sfd.fileName = line;
if (parsed[2] != "<DIR>")
sfd.size = Convert.ToInt32(parsed[2]);
sfd.date = parsed[0] + ' ' + parsed[1];
sfd.isDirectory = parsed[2] == "<DIR>";
}
catch
{
sfd = null;
}
return sfd;
}
private ServerFileData ParseUnixDirLine(string line)
{
ServerFileData sfd = new ServerFileData();
try
{
string[] parsed = new string[8];
int index = 0;
int position;
// Parse out the elements
position = line.IndexOf(' ');
while (index < parsed.Length)
{
parsed[index] = line.Substring(0, position);
line = line.Substring(position);
line = line.Trim();
index++;
position = line.IndexOf(' ');
}
sfd.fileName = line;
sfd.permission = parsed[0];
sfd.owner = parsed[2];
sfd.group = parsed[3];
sfd.size = Convert.ToInt32(parsed[4]);
sfd.date = parsed[5] + ' ' + parsed[6] + ' ' + parsed[7];
sfd.isDirectory = sfd.permission[0] == 'd';
}
catch
{
sfd = null;
}
return sfd;
}
private void ParseUnixDirList(string sDir)
{
const string CRLF = "\r\n";
try
{
m_filecount = 0;
int i = 0;
sDir = sDir.Replace(CRLF, "\r");
string[] sFile = sDir.Split(new Char[] { '\r' });
ServerFileData sfd = null;
int autodetect = 0;
foreach (string fileLine in sFile)
{
if (autodetect == 0)
{
sfd = ParseDosDirLine(fileLine);
if (sfd == null)
{
sfd = ParseUnixDirLine(fileLine);
autodetect = 2;
}
else
autodetect = 1;
}
else
if (autodetect == 1)
sfd = ParseDosDirLine(fileLine);
else
if (autodetect == 2)
sfd = ParseUnixDirLine(fileLine);
if (sfd != null)
{
m_files[i] = sfd;
i++;
m_filecount = i;
}
}
}
catch (Exception e)
{
}
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
}
}
~FTPC()
{
Dispose();
}
public int FileCount
{
get
{
return m_filecount;
}
}
public string GetFileName(int FileIndex)
{
if (FileIndex < m_filecount)
return m_files[FileIndex].fileName;
else
return "";
}
public int GetFileSize(int FileIndex)
{
if (FileIndex < m_filecount)
return (int)m_files[FileIndex].size;
else
return -1;
}
public void Command(string command, int reply)
{
m_ftpmonitor.SendCommand(new FTPCommand(command, reply));
}
public bool IsFolder(int FileIndex)
{
if (FileIndex < m_filecount)
return m_files[FileIndex].isDirectory;
else
return false;
}
public bool IsFolder(string FileName)
{
bool bres = false;
int FileIndex = GetFileIndex(FileName);
if (FileIndex > -1)
bres = IsFolder(FileIndex);
return bres;
}
public string Type
{
get
{
return m_type;
}
set
{
m_type = value;
}
}
}
}