//帮助类 FTPHelper
namespace Common.FTP
{
/// <summary>
/// FTP的相关操作
/// </summary>
public class FTPHelper
{
//static readonly log4net.ILog log = log4net.LogManager.GetLogger("log4net");
private string remoteHost, remotePath, remoteUser, remotePass, mes;
private int remotePort, bytes;
private Socket clientSocket;
private int retValue;
private Boolean debug;
private Boolean logined;
private string reply;
private static int BLOCK_SIZE = 512;
private Byte[] buffer = new Byte[BLOCK_SIZE];
private Encoding ASCII = Encoding.ASCII;
private Encoding Default = Encoding.Default;
public FTPHelper()
{
remoteHost = "";
remotePath = ".";
remoteUser = "anonymous";
remotePass = "";
remotePort = 21;
debug = false;
logined = false;
}
public FTPHelper(string sRemoteHost,string sRemotePath,string sRemoteUser,string sRemotePassword,int iRemotePort)
{
remoteHost = sRemoteHost;
remotePath = sRemotePath;
remoteUser = sRemoteUser;
remotePass = sRemotePassword;
remotePort = iRemotePort;
debug = false;
logined = false;
}
///
/// Set the name of the FTP server to connect to.
///
/// Server name
public void setRemoteHost(string remoteHost)
{
this.remoteHost = remoteHost;
}
///
/// Return the name of the current FTP server.
///
/// Server name
public string getRemoteHost()
{
return remoteHost;
}
///
/// Set the port number to use for FTP.
///
/// Port number
public void setRemotePort(int remotePort)
{
this.remotePort = remotePort;
}
///
/// Return the current port number.
///
/// Current port number
public int getRemotePort()
{
return remotePort;
}
///
/// Set the remote directory path.
///
/// The remote directory path
public void setRemotePath(string remotePath)
{
this.remotePath = remotePath;
}
///
/// Return the current remote directory path.
///
/// The current remote directory path.
public string getRemotePath()
{
return remotePath;
}
///
/// Set the user name to use for logging into the remote server.
///
/// Username
public void setRemoteUser(string remoteUser)
{
= remoteUser this.remoteUser;
}
///
/// The password to the Set for the logging INTO The Remote User Server.
///
/// Password
public void setRemotePass (String remotePass)
{
this.remotePass = remotePass;
}
///
/// It returns a list of files from the file system. It returns the file in the string () function. .
///
///
///
public String [] getFileList (String mask)
{
IF (logined!)
{
Login ();
}
the Socket createDataSocket CSocket = ();
sendCommand ( "the NLST" + mask);
IF (! (150 || retValue retValue == == 125))
{
the throw new new IOException (reply.Substring (. 4));
}
MES = "";
the Thread.Sleep (700);
the while (to true)
{
if (cSocket.Connected)
{
int bytes = cSocket.Receive(buffer, buffer.Length, 0);
mes += Default.GetString(buffer, 0, bytes);
if (bytes < buffer.Length)
{
break;
}
}
else
{
//log.Info("socket 连接断了！");
}
}
//log.Info(mes);
char[] seperator = {'\n'};
string[] mess = mes.Split(seperator);
//foreach(string fileName in mess)
//{
//log.Info(fileName);
//}
cSocket.Close();
readReply();
if (retValue != 226)
{
throw new IOException(reply.Substring(4));
}
return mess;
}
public string[] getFileList()
{
if (!logined)
{
login();
}
Socket cSocket = createDataSocket();
sendCommand("LIST ");
if (!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}
mes = "";
while (true)
{
int bytes = cSocket.Receive(buffer, buffer.Length, 0);
mes += Default.GetString(buffer, 0, bytes);
if (bytes < buffer.Length)
{
break;
}
}
//log.Info(mes);
char[] seperator = {'\n'};
string[] mess = mes.Split(seperator);
cSocket.Close();
readReply();
if (retValue != 226)
{
throw new IOException(reply.Substring(4));
}
return mess;
}
///
/// 得到FTP服务器上的文件大小.
///
///
///
public long getFileSize(string fileName)
{
if (!logined)
{
login();
}
sendCommand("SIZE " + fileName);
long size = 0;
if (retValue == 213)
{
size = Int64.Parse(reply.Substring(4));
}
else
{
throw new IOException(reply.Substring(4));
}
return size;
}
///
/// 登录FTP服务器
///
public void login()
{
clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(Dns.Resolve(remoteHost).AddressList[0], remotePort);
try
{
clientSocket.Connect(ep);
}
catch (Exception)
{
throw new IOException("Couldn't connect to remote server");
}
readReply();
if (retValue != 220)
{
close();
throw new IOException(reply.Substring(4));
}
if (debug)
Console.WriteLine("USER " + remoteUser);
sendCommand("USER " + remoteUser);
if (!(retValue == 331 || retValue == 230))
{
cleanup();
throw new IOException(reply.Substring(4));
}
if (retValue != 230)
{
if (debug)
Console.WriteLine("PASS xxx");
sendCommand("PASS " + remotePass);
if (!(retValue == 230 || retValue == 202))
{
cleanup();
throw new IOException(reply.Substring(4));
}
}
logined = true;
Console.WriteLine ( "Connected to" + remoteHost);
the chdir (the remotePath);
/// the Download File to A local apos Assembly The Directory,
/// The Same keeping File name.
///
}
///
/// If the pattern is true for download to binary mode. Otherwise, set to Default mode
/// Else, Ascii SET MODE.
///
///
public void setBinaryMode (Boolean MODE)
{
IF (MODE)
{
sendCommand ( "the I the TYPE");
}
the else
{
sendCommand ( "the TYPE A ");
}
IF (= 200 is retValue)!
{
the throw new new IOException (reply.Substring (. 4));
}
}
///
/// configured to download a file to the local directory. To keep the same file name.
void downloads public (String remFileName)
{
downloads (remFileName, "", to false);
}
///
/// A Remote File to the Download apos local Assembly The Directory,
/// The Same keeping File name, and SET The Resume In Flag.
///
///
/// download a remote file to a local folder configured. To keep the same file name.
void downloads public (String remFileName, Boolean Resume)
{
downloads (remFileName, "", Resume);
}
///
/// the Download Remote File A to File A local name Which the include CAN
. /// A path name of The local File BE the Created or overwritten by Will,
/// But at The path the MUST exist.
///
/// download a remote file on the local file name. You must include a path.
/// local file name will be created or will be rewritten, but the path must exist.
void downloads public (remFileName String, String locFileName)
{
downloads (remFileName, locFileName, to false);
}
///
/// A Remote File to the Download File name A local CAN Which the include
/// path A, and SET The local File name of The Resume In Flag Will BE.
/// Created overwritten or, at The path But the MUST exist.
///
/// for a local file name to download a remote file. You must include a path.
/// set the recovery flag. Local file name will be created or rewritten, but the local path must exist.
///
public void downloads (remFileName String, String locFileName, Boolean Resume)
{
IF (logined!)
{
Login ();
}
setBinaryMode (to false);
Console.WriteLine ( "Downloading File" + remFileName + "from" + + remoteHost "//" + remotePath);
IF (locFileName.Equals ( "
{
locFileName = remFileName;
}
if (!System.IO.File.Exists(locFileName))
{
Stream st = System.IO.File.Create(locFileName);
st.Close();
}
FileStream output = new FileStream(locFileName, FileMode.Create);
Socket cSocket = createDataSocket();
long offset = 0;
if (resume)
{
offset = output.Length;
if (offset > 0)
{
setBinaryMode(false);
sendCommand("REST " + offset);
if (retValue != 350)
{
//throw new IOException(reply.Substring(4));
//Some servers may not support resuming.
offset = 0;
}
}
if (offset > 0)
{
if (debug)
{
Console.WriteLine("seeking to " + offset);
}
long npos = output.Seek(offset, SeekOrigin.Begin);
Console.WriteLine("new pos=" + npos);
}
}
sendCommand("RETR " + remFileName);
if (!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}
while (true)
{
= cSocket.Receive bytes (Buffer, buffer.Length, 0);
output.Write (Buffer, 0, bytes);
IF (bytes <= 0)
{
BREAK;
}
}
output.Close ();
if (cSocket.Connected)
{
cSocket.Close ();
}
Console.WriteLine ( "");
readReply ();
IF ((|| retValue retValue == == 226 250)!)
{
the throw new new IOException (reply.Substring (. 4));
}
}
///
/// . the upload the System.IO.File a
///
/// this is you from a local hard disk to your FTP file folder on the file upload function
public void upload (String fileName)
{
upload (fileName, to false);
}
///
. a /// the upload File and the sET at the resume flag
///
///
/// this is a sign to recover from your local hard drive to upload functions and settings on your FTP page
public Upload void (String fileName, Boolean Resume)
{
IF (! logined)
{
Login ();
}
the Socket CSocket = createDataSocket ();
Long offset = 0;
IF (Resume)
{
the try
{
setBinaryMode (to true);
offset = getFileSize (fileName);
}
the catch (Exception)
{
offset = 0;
}
}
IF (offset> 0)
{
sendCommand ( "the REST" + offset);
IF (! retValue = 350)
{
//throw new IOException(reply.Substring(4));
//Remote server may not support resuming.
offset = 0;
}
}
/*==========================*/
sendCommand("STOR " + Path.GetFileName(fileName));
if (!(retValue == 125 || retValue == 150))
{
throw new IOException(reply.Substring(4));
}
// open input stream to read source file
FileStream input = new FileStream(fileName, FileMode.Open);
if (offset != 0)
{
if (debug)
{
Console.WriteLine("seeking to " + offset);
}
input.Seek(offset, SeekOrigin.Begin);
}
Console.WriteLine("Uploading file " + fileName + " to " + remotePath);
while ((bytes = input.Read(buffer, 0, buffer.Length)) > 0)
{
cSocket.Send(buffer, bytes, 0);
}
input.Close();
Console.WriteLine("");
if (cSocket.Connected)
{
cSocket.Close();
}
readReply();
if (!(retValue == 226 || retValue == 250))
{
throw new IOException(reply.Substring(4));
}
}
///
/// Delete a file from the remote FTP server.
///
/// 从远程FTP服务器上删除一个文件。
public void deleteRemoteFile(string fileName)
{
if (!logined)
{
login();
}
sendCommand("DELE " + fileName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
///
/// Rename a file on the remote FTP server.
///
///
/// 在远程FTP服务器上重命名一个文件
public void renameRemoteFile(string oldFileName, string newFileName)
{
if (!logined)
{
login();
}
sendCommand("RNFR " + oldFileName);
if (retValue != 350)
{
throw new IOException(reply.Substring(4));
}
// known problem
// rnto will not take care of existing System.IO.File.
// i.e. It will overwrite if newFileName exist
sendCommand("RNTO " + newFileName);
if (retValue != 250)
{
throw new IOException(reply.Substring(4));
}
}
///
The ON the Create Directory A /// Remote the FTP Server.
///
/// This is a directory created on the remote server function
public void mkdir (String dirName)
{
IF (logined!)
{
Login ();
}
sendCommand ( "MKD" + dirName);
IF (250 || retValue retValue == == 257)
{
}
the else
{
the throw new new IOException (reply.Substring (. 4));
}
}
///
/// The ON the Delete Directory A Remote the FTP server.
///
/// this is a deleted directory on the remote FTP server function
public void rmdir (String dirName)
{
IF (! logined)
{
Login ();
}
sendCommand ( "the RMD" + dirName);
IF (retValue = 250!)
{
the throw new new IOException (reply.Substring (. 4));
}
}
///
/// The Current Working Directory Change The Remote ON server FTP.
///
/// this is a function used to change the current working directory on the remote FTP server.
void the chdir public (String dirName)
{
IF ( "." dirName.Equals ())
{
return;
}
IF (logined!)
{
Login ();
}
sendCommand ( "CWD" + dirName);
IF (! retValue = 250)
{
new new IOException the throw (reply.Substring (. 4));
}
this.remotePath = dirName;
Console.WriteLine("Current directory is " + remotePath);
}
///
/// Close the FTP connection.
/// 关闭远程服务器的FTP链接
public void close()
{
if (clientSocket != null)
{
sendCommand("QUIT");
}
cleanup();
Console.WriteLine("Closing...");
}
///
/// Set debug mode.
///
///
public void setDebug(Boolean debug)
{
this.debug = debug;
}
private void readReply()
{
mes = "";
reply = readLine();
retValue = Int32.Parse(reply.Substring(0, 3));
}
private void cleanup()
{
if (clientSocket != null)
{
clientSocket.Close();
clientSocket = null;
}
logined = false;
}
private string readLine()
{
while (true)
{
bytes = clientSocket.Receive(buffer, buffer.Length, 0);
mes += Default.GetString(buffer, 0, bytes);
if (bytes < buffer.Length)
{
break;
}
}
char[] seperator = {'\n'};
string[] mess = mes.Split(seperator);
if (mes.Length > 2)
{
mes = mess[mess.Length - 2];
}
else
{
mes = mess[0];
}
if (!mes.Substring(3, 1).Equals(" "))
{
return readLine();
}
if (debug)
{
for (int k = 0; k < mess.Length - 1; k++)
{
Console.WriteLine(mess[k]);
}
}
return mes;
}
private void sendCommand(String command)
{
Byte[] cmdBytes = Encoding.Default.GetBytes((command + "\r\n").ToCharArray());
clientSocket.Send(cmdBytes, cmdBytes.Length, 0);
readReply();
}
//创建一个数据包
private Socket createDataSocket()
{
sendCommand("PASV");
if (retValue != 227)
{
if (Char.IsDigit(ch))
parts[partCount++] = Int32.Parse(buf);
buf = "";
}
catch (Exception)
{
throw new IOException("Malformed PASV reply: " + reply);
}
}
}
string ipAddress = parts[0] + "." + parts[1] + "." + parts[2] + "." + parts[3];
int port = (parts[4] << 8) + parts[5];
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 5000);
IPEndPoint ep = new IPEndPoint(Dns.Resolve(ipAddress).AddressList[0], port);
try
{
s.Connect(ep);
}
catch (Exception)
{
throw new IOException("Can't connect to remote server");
}
return s;
}
}
//调用
public bool SaveFileToFTP(string ftppath, string filename)
{
bool result = System.IO.File.Exists(filename);
if (result)
{
try
{
FTPHelper ftpHelper = new FTPHelper(FTPIP, "", FTPUserName, FTPPassword, SysConvert.ToInt32(FTPPort));
foreach (string dir in ftppath.Split('/').ToArray())
{
if (string.IsNullOrEmpty(dir))
{
continue;
}
bool isContinue = false;
string[] ftpfileslist = ftpHelper.getFileList();
for (int i = 0; i < ftpfileslist.Length; i++)
{
string tempStr = ftpfileslist[i].Trim().Replace("\\r", "");
if (string.IsNullOrEmpty(tempStr))
{
continue;
}
string[] ftpDirInfo = tempStr.Split(' ');
//log.Info(tempStr);
if (tempStr.ToLower().Contains("<dir>") || ftpDirInfo[0].Contains("dr"))
{
if (ftpDirInfo[ftpDirInfo.Length - 1] == dir)
{
ftpHelper.chdir(dir);
isContinue = true;
break;
}
continue;
}
}
if (!isContinue)
{
try
{
ftpHelper.mkdir(dir);
}
catch
{
}
ftpHelper.chdir(dir);
}
}
ftpHelper.upload(filename);
}
catch (Exception ex)
{
result = false;
}
}
return result;
}