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| using System;
using System.Net;
using System.IO;
using System.Text;
using System.Net.Sockets;
using System.Diagnostics;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Messaging;
/*
* FTP Client library in C#
* Author: Jaimon Mathew
* mailto:jaimonmathew@rediffmail.com
* http://www.csharphelp.com/archives/archive9.html
*
* Addapted for use by Dan Glass 07/03/03
*/
namespace Project
{
public class FtpClient
{
public class FtpException : Exception
{
public FtpException(string message) : base(message) { }
public FtpException(string message, Exception innerException) : base(message, innerException) { }
}
private static int BUFFER_SIZE = 512;
private static Encoding ASCII = Encoding.ASCII;
private bool verboseDebugging = false;
// defaults
private string server = "localhost";
private string remotePath = ".";
private string username = "anonymous";
private string password = "anonymous@anonymous.net";
private string message = null;
private string result = null;
private int port = 21;
private int bytes = 0;
private int resultCode = 0;
private bool loggedin = false;
private bool binMode = false;
private Byte[] buffer = new Byte[BUFFER_SIZE];
private Socket clientSocket = null;
private int timeoutSeconds = 10;
/// <summary>
/// Default contructor
/// </summary>
public FtpClient()
{
}
/// <summary>
///
/// </summary>
/// <param name="server"></param>
/// <param name="username"></param>
/// <param name="password"></param>
public FtpClient(string server, string username, string password)
{
this.server = server;
this.username = username;
this.password = password;
}
/// <summary>
///
/// </summary>
/// <param name="server"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <param name="timeoutSeconds"></param>
/// <param name="port"></param>
public FtpClient(string server, string username, string password, int timeoutSeconds, int port)
{
this.server = server;
this.username = username;
this.password = password;
this.timeoutSeconds = timeoutSeconds;
this.port = port;
}
/// <summary>
/// Display all communications to the debug log
/// </summary>
public bool VerboseDebugging
{
get
{
return this.verboseDebugging;
}
set
{
this.verboseDebugging = value;
}
}
/// <summary>
/// Remote server port. Typically TCP 21
/// </summary>
public int Port
{
get
{
return this.port;
}
set
{
this.port = value;
}
}
/// <summary>
/// Timeout waiting for a response from server, in seconds.
/// </summary>
public int Timeout
{
get
{
return this.timeoutSeconds;
}
set
{
this.timeoutSeconds = value;
}
}
/// <summary>
/// Gets and Sets the name of the FTP server.
/// </summary>
/// <returns></returns>
public string Server
{
get
{
return this.server;
}
set
{
this.server = value;
}
}
/// <summary>
/// Gets and Sets the port number.
/// </summary>
/// <returns></returns>
public int RemotePort
{
get
{
return this.port;
}
set
{
this.port = value;
}
}
/// <summary>
/// GetS and Sets the remote directory.
/// </summary>
public string RemotePath
{
get
{
return this.remotePath;
}
set
{
this.remotePath = value;
}
}
/// <summary>
/// Gets and Sets the username.
/// </summary>
public string Username
{
get
{
return this.username;
}
set
{
this.username = value;
}
}
/// <summary>
/// Gets and Set the password.
/// </summary>
public string Password
{
get
{
return this.password;
}
set
{
this.password = value;
}
}
/// <summary>
/// If the value of mode is true, set binary mode for downloads, else, Ascii mode.
/// </summary>
public bool BinaryMode
{
get
{
return this.binMode;
}
set
{
if (this.binMode == value) return;
if (value)
sendCommand("TYPE I");
else
sendCommand("TYPE A");
if (this.resultCode != 200) throw new FtpException(result.Substring(4));
}
}
/// <summary>
/// Login to the remote server.
/// </summary>
public void Login()
{
if (this.loggedin) this.Close();
Debug.WriteLine("Opening connection to " + this.server, "FtpClient");
IPAddress addr = null;
IPEndPoint ep = null;
try
{
this.clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
addr = Dns.Resolve(this.server).AddressList[0];
ep = new IPEndPoint(addr, this.port);
this.clientSocket.Connect(ep);
}
catch (Exception ex)
{
// doubtfull
if (this.clientSocket != null && this.clientSocket.Connected) this.clientSocket.Close();
throw new FtpException("Couldn't connect to remote server", ex);
}
this.readResponse();
if (this.resultCode != 220)
{
this.Close();
throw new FtpException(this.result.Substring(4));
}
this.sendCommand("USER " + username);
if (!(this.resultCode == 331 || this.resultCode == 230))
{
this.cleanup();
throw new FtpException(this.result.Substring(4));
}
if (this.resultCode != 230)
{
this.sendCommand("PASS " + password);
if (!(this.resultCode == 230 || this.resultCode == 202))
{
this.cleanup();
throw new FtpException(this.result.Substring(4));
}
}
this.loggedin = true;
Debug.WriteLine("Connected to " + this.server, "FtpClient");
this.ChangeDir(this.remotePath);
}
/// <summary>
/// Close the FTP connection.
/// </summary>
public void Close()
{
Debug.WriteLine("Closing connection to " + this.server, "FtpClient");
if (this.clientSocket != null)
{
this.sendCommand("QUIT");
}
this.cleanup();
}
/// <summary>
/// Return a string array containing the remote directory's file list.
/// </summary>
/// <returns></returns>
public string[] GetFileList()
{
return this.GetFileList("*.*");
}
/// <summary>
/// Return a string array containing the remote directory's file list.
/// </summary>
/// <param name="mask"></param>
/// <returns></returns>
public string[] GetFileList(string mask)
{
if (!this.loggedin) this.Login();
Socket cSocket = createDataSocket();
this.sendCommand("NLST " + mask);
if (!(this.resultCode == 150 || this.resultCode == 125)) throw new FtpException(this.result.Substring(4));
this.message = "";
DateTime timeout = DateTime.Now.AddSeconds(this.timeoutSeconds);
while (timeout > DateTime.Now)
{
int bytes = cSocket.Receive(buffer, buffer.Length, 0);
this.message += ASCII.GetString(buffer, 0, bytes);
if (bytes < this.buffer.Length) break;
}
string[] msg = this.message.Replace("\r", "").Split('\n');
cSocket.Close();
if (this.message.IndexOf("No such file or directory") != -1)
msg = new string[] { };
this.readResponse();
if (this.resultCode != 226)
msg = new string[] { };
// throw new FtpException(result.Substring(4));
return msg;
}
/// <summary>
/// Return the size of a file.
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public long GetFileSize(string fileName)
{
if (!this.loggedin) this.Login();
this.sendCommand("SIZE " + fileName);
long size = 0;
if (this.resultCode == 213)
size = long.Parse(this.result.Substring(4));
else
throw new FtpException(this.result.Substring(4));
return size;
}
/// <summary>
/// Download a file to the Assembly's local directory,
/// keeping the same file name.
/// </summary>
/// <param name="remFileName"></param>
public void Download(string remFileName)
{
this.Download(remFileName, "", false);
}
/// <summary>
/// Download a remote file to the Assembly's local directory,
/// keeping the same file name, and set the resume flag.
/// </summary>
/// <param name="remFileName"></param>
/// <param name="resume"></param>
public void Download(string remFileName, Boolean resume)
{
this.Download(remFileName, "", resume);
}
/// <summary>
/// Download a remote file to a local file name which can include
/// a path. The local file name will be created or overwritten,
/// but the path must exist.
/// </summary>
/// <param name="remFileName"></param>
/// <param name="locFileName"></param>
public void Download(string remFileName, string locFileName)
{
this.Download(remFileName, locFileName, false);
}
/// <summary>
/// Download a remote file to a local file name which can include
/// a path, and set the resume flag. The local file name will be
/// created or overwritten, but the path must exist.
/// </summary>
/// <param name="remFileName"></param>
/// <param name="locFileName"></param>
/// <param name="resume"></param>
public void Download(string remFileName, string locFileName, Boolean resume)
{
if (!this.loggedin) this.Login();
this.BinaryMode = true;
Debug.WriteLine("Downloading file " + remFileName + " from " + server + "/" + remotePath, "FtpClient");
if (locFileName.Equals(""))
{
locFileName = remFileName;
}
FileStream output = null;
if (!File.Exists(locFileName))
output = File.Create(locFileName);
else
output = new FileStream(locFileName, FileMode.Open);
Socket cSocket = createDataSocket();
long offset = 0;
if (resume)
{
offset = output.Length;
if (offset > 0)
{
this.sendCommand("REST " + offset);
if (this.resultCode != 350)
{
//Server dosnt support resuming
offset = 0;
Debug.WriteLine("Resuming not supported:" + result.Substring(4), "FtpClient");
}
else
{
Debug.WriteLine("Resuming at offset " + offset, "FtpClient");
output.Seek(offset, SeekOrigin.Begin);
}
}
}
this.sendCommand("RETR " + remFileName);
if (this.resultCode != 150 && this.resultCode != 125)
{
throw new FtpException(this.result.Substring(4));
}
DateTime timeout = DateTime.Now.AddSeconds(this.timeoutSeconds);
while (timeout > DateTime.Now)
{
this.bytes = cSocket.Receive(buffer, buffer.Length, 0);
output.Write(this.buffer, 0, this.bytes);
if (this.bytes <= 0)
{
break;
}
}
output.Close();
if (cSocket.Connected) cSocket.Close();
this.readResponse();
if (this.resultCode != 226 && this.resultCode != 250)
throw new FtpException(this.result.Substring(4));
}
/// <summary>
/// Upload a file.
/// </summary>
/// <param name="fileName"></param>
public void Upload(string fileName)
{
this.Upload(fileName, false);
}
/// <summary>
/// Upload a file and set the resume flag.
/// </summary>
/// <param name="fileName"></param>
/// <param name="resume"></param>
public void Upload(string fileName, bool resume)
{
if (!this.loggedin) this.Login();
Socket cSocket = null;
long offset = 0;
if (resume)
{
try
{
this.BinaryMode = true;
offset = GetFileSize(Path.GetFileName(fileName));
}
catch (Exception)
{
// file not exist
offset = 0;
}
}
// open stream to read file
FileStream input = new FileStream(fileName, FileMode.Open);
if (resume && input.Length < offset)
{
// different file size
Debug.WriteLine("Overwriting " + fileName, "FtpClient");
offset = 0;
}
else if (resume && input.Length == offset)
{
// file done
input.Close();
Debug.WriteLine("Skipping completed " + fileName + " - turn resume off to not detect.", "FtpClient");
return;
}
// dont create untill we know that we need it
cSocket = this.createDataSocket();
if (offset > 0)
{
this.sendCommand("REST " + offset);
if (this.resultCode != 350)
{
Debug.WriteLine("Resuming not supported", "FtpClient");
offset = 0;
}
}
this.sendCommand("STOR " + Path.GetFileName(fileName));
if (this.resultCode != 125 && this.resultCode != 150) throw new FtpException(result.Substring(4));
if (offset != 0)
{
Debug.WriteLine("Resuming at offset " + offset, "FtpClient");
input.Seek(offset, SeekOrigin.Begin);
}
Debug.WriteLine("Uploading file " + fileName + " to " + remotePath, "FtpClient");
while ((bytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
cSocket.Send(buffer, bytes, 0);
}
input.Close();
if (cSocket.Connected)
{
cSocket.Close();
}
this.readResponse();
if (this.resultCode != 226 && this.resultCode != 250) throw new FtpException(this.result.Substring(4));
}
/// <summary>
/// Upload a directory and its file contents
/// </summary>
/// <param name="path"></param>
/// <param name="recurse">Whether to recurse sub directories</param>
public void UploadDirectory(string path, bool recurse)
{
this.UploadDirectory(path, recurse, "*.*");
}
/// <summary>
/// Upload a directory and its file contents
/// </summary>
/// <param name="path"></param>
/// <param name="recurse">Whether to recurse sub directories</param>
/// <param name="mask">Only upload files of the given mask - everything is '*.*'</param>
public void UploadDirectory(string path, bool recurse, string mask)
{
string[] dirs = path.Replace("/", @"\").Split('\\');
string rootDir = dirs[dirs.Length - 1];
// make the root dir if it doed not exist
if (this.GetFileList(rootDir).Length < 1) this.MakeDir(rootDir);
this.ChangeDir(rootDir);
foreach (string file in Directory.GetFiles(path, mask))
{
this.Upload(file, true);
}
if (recurse)
{
foreach (string directory in Directory.GetDirectories(path))
{
this.UploadDirectory(directory, recurse, mask);
}
}
this.ChangeDir("..");
}
/// <summary>
/// Delete a file from the remote FTP server.
/// </summary>
/// <param name="fileName"></param>
public void DeleteFile(string fileName)
{
if (!this.loggedin) this.Login();
this.sendCommand("DELE " + fileName);
if (this.resultCode != 250) throw new FtpException(this.result.Substring(4));
Debug.WriteLine("Deleted file " + fileName, "FtpClient");
}
/// <summary>
/// Rename a file on the remote FTP server.
/// </summary>
/// <param name="oldFileName"></param>
/// <param name="newFileName"></param>
/// <param name="overwrite">setting to false will throw exception if it exists</param>
public void RenameFile(string oldFileName, string newFileName, bool overwrite)
{
if (!this.loggedin) this.Login();
this.sendCommand("RNFR " + oldFileName);
if (this.resultCode != 350) throw new FtpException(this.result.Substring(4));
if (!overwrite && this.GetFileList(newFileName).Length > 0) throw new FtpException("File already exists");
this.sendCommand("RNTO " + newFileName);
if (this.resultCode != 250) throw new FtpException(this.result.Substring(4));
Debug.WriteLine("Renamed file " + oldFileName + " to " + newFileName, "FtpClient");
}
/// <summary>
/// Create a directory on the remote FTP server.
/// </summary>
/// <param name="dirName"></param>
public void MakeDir(string dirName)
{
if (!this.loggedin) this.Login();
this.sendCommand("MKD " + dirName);
if (this.resultCode != 250 && this.resultCode != 257) throw new FtpException(this.result.Substring(4));
Debug.WriteLine("Created directory " + dirName, "FtpClient");
}
/// <summary>
/// Delete a directory on the remote FTP server.
/// </summary>
/// <param name="dirName"></param>
public void RemoveDir(string dirName)
{
if (!this.loggedin) this.Login();
this.sendCommand("RMD " + dirName);
if (this.resultCode != 250) throw new FtpException(this.result.Substring(4));
Debug.WriteLine("Removed directory " + dirName, "FtpClient");
}
/// <summary>
/// Change the current working directory on the remote FTP server.
/// </summary>
/// <param name="dirName"></param>
public void ChangeDir(string dirName)
{
if (dirName == null || dirName.Equals(".") || dirName.Length == 0)
{
return;
}
if (!this.loggedin) this.Login();
this.sendCommand("CWD " + dirName);
if (this.resultCode != 250) throw new FtpException(result.Substring(4));
this.sendCommand("PWD");
if (this.resultCode != 257) throw new FtpException(result.Substring(4));
// gonna have to do better than this....
this.remotePath = this.message.Split('"')[1];
Debug.WriteLine("Current directory is " + this.remotePath, "FtpClient");
}
/// <summary>
///
/// </summary>
private void readResponse()
{
this.message = "";
this.result = this.readLine();
if (this.result.Length > 3)
this.resultCode = int.Parse(this.result.Substring(0, 3));
else
this.result = null;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private string readLine()
{
while (true)
{
this.bytes = clientSocket.Receive(this.buffer, this.buffer.Length, 0);
this.message += ASCII.GetString(this.buffer, 0, this.bytes);
if (this.bytes < this.buffer.Length)
{
break;
}
}
string[] msg = this.message.Split('\n');
if (this.message.Length > 2)
this.message = msg[msg.Length - 2];
else
this.message = msg[0];
if (this.message.Length > 4 && !this.message.Substring(3, 1).Equals(" ")) return this.readLine();
if (this.verboseDebugging)
{
for (int i = 0; i < msg.Length - 1; i++)
{
Debug.Write(msg[i], "FtpClient");
}
}
return message;
}
/// <summary>
///
/// </summary>
/// <param name="command"></param>
private void sendCommand(String command)
{
if (this.verboseDebugging) Debug.WriteLine(command, "FtpClient");
Byte[] cmdBytes = Encoding.ASCII.GetBytes((command + "\r\n").ToCharArray());
clientSocket.Send(cmdBytes, cmdBytes.Length, 0);
this.readResponse();
}
/// <summary>
/// when doing data transfers, we need to open another socket for it.
/// </summary>
/// <returns>Connected socket</returns>
private Socket createDataSocket()
{
this.sendCommand("PASV");
if (this.resultCode != 227) throw new FtpException(this.result.Substring(4));
int index1 = this.result.IndexOf('(');
int index2 = this.result.IndexOf(')');
string ipData = this.result.Substring(index1 + 1, index2 - index1 - 1);
int[] parts = new int[6];
int len = ipData.Length;
int partCount = 0;
string buf = "";
for (int i = 0; i < len && partCount <= 6; i++)
{
char ch = char.Parse(ipData.Substring(i, 1));
if (char.IsDigit(ch))
buf += ch;
else if (ch != ',')
throw new FtpException("Malformed PASV result: " + result);
if (ch == ',' || i + 1 == len)
{
try
{
parts[partCount++] = int.Parse(buf);
buf = "";
}
catch (Exception ex)
{
throw new FtpException("Malformed PASV result (not supported?): " + this.result, ex);
}
}
}
string ipAddress = parts[0] + "." + parts[1] + "." + parts[2] + "." + parts[3];
int port = (parts[4] << 8) + parts[5];
Socket socket = null;
IPEndPoint ep = null;
try
{
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
ep = new IPEndPoint(Dns.Resolve(ipAddress).AddressList[0], port);
socket.Connect(ep);
}
catch (Exception ex)
{
// doubtfull....
if (socket != null && socket.Connected) socket.Close();
throw new FtpException("Can't connect to remote server", ex);
}
return socket;
}
/// <summary>
/// Always release those sockets.
/// </summary>
private void cleanup()
{
if (this.clientSocket != null)
{
this.clientSocket.Close();
this.clientSocket = null;
}
this.loggedin = false;
}
....
} |
[FTP] Upload fichier à travers proxy: pas pris en charge par FtpWebRequest // C#2.0
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