命令行FTP工具代码,CSharp代码库,德仔网

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代码分类
【CSharp】命令行FTP工具
作者:517sou / 发布于2012/7/27/ 597
用法:FtpDemo FTPServer FTPUser FTPPassword Directory LocalFile
<div>*
FTPFactory.cs
用下面的命令行编译
csc /target:library /out:FTPLib.dll /r:System.DLL FTPFactory.cs
*/

using System;
using System.Net;
using System.IO;
using System.Text;
using System.Net.Sockets;

namespace FtpLib
{

public class FTPFactory
{

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;

Byte[] buffer = new Byte[BLOCK_SIZE];
Encoding ASCII = Encoding.ASCII;

public FTPFactory()
{

remoteHost  = "localhost";
remotePath  = ".";
remoteUser  = "anonymous";
remotePass  = "password";
remotePort  = 21;
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)
{
this.remoteUser = remoteUser;
}

///
/// Set the password to user for logging into the remote server.
///
/// Password
public void setRemotePass(string remotePass)
{
this.remotePass = remotePass;
}

///
/// Return a string array containing the remote directory"s file list.
///
///
///
public string[] getFileList(string mask)
{

if(!logined)
{
login();
}

Socket cSocket = createDataSocket();

sendCommand("NLST " + mask);

if(!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}

mes = "";

while(true)
{

int bytes = cSocket.Receive(buffer, buffer.Length, 0);
mes += ASCII.GetString(buffer, 0, bytes);

if(bytes < buffer.Length)
{
break;
}
}

char[] seperator = {'\n'};
string[] mess = mes.Split(seperator);

cSocket.Close();

readReply();

if(retValue != 226)
{
throw new IOException(reply.Substring(4));
}
return mess;

}

///
/// Return the size of a file.
///
///
///
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;

}

///
/// Login to the remote server.
///
public void login()
{

clientSocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(Dns.GetHostEntry(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);

chdir(remotePath);

}

///
/// If the value of mode is true, set binary mode for downloads.
/// Else, set Ascii mode.
///
///
public void setBinaryMode(Boolean mode)
{

if(mode)
{
sendCommand("TYPE I");
}
else
{
sendCommand("TYPE A");
}
if (retValue != 200)
{
throw new IOException(reply.Substring(4));
}
}

///
/// Download a file to the Assembly"s local directory,
/// keeping the same file name.
///
///
public void download(string remFileName)
{
download(remFileName,"",false);
}

///
/// Download a remote file to the Assembly"s local directory,
/// keeping the same file name, and set the resume flag.
///
///
///
public void download(string remFileName,Boolean resume)
{
download(remFileName,"",resume);
}

///
/// 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.
///
///
///
public void download(string remFileName,string locFileName)
{
download(remFileName,locFileName,false);
}

///
/// 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.
///
///
///
///
public void download(string remFileName,string locFileName,Boolean resume)
{
if(!logined)
{
login();
}

setBinaryMode(true);

Console.WriteLine("Downloading file "+remFileName+" from "+remoteHost + "/"+remotePath);

if (locFileName.Equals(""))
{
locFileName = remFileName;
}

if(!File.Exists(locFileName))
{
Stream st = File.Create(locFileName);
st.Close();
}

FileStream output = new FileStream(locFileName,FileMode.Open);

Socket cSocket = createDataSocket();

long offset = 0;

if(resume)
{

offset = output.Length;

if(offset > 0 )
{
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)
{

bytes = cSocket.Receive(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 == 226 || retValue == 250) )
{
throw new IOException(reply.Substring(4));
}

}

///
/// Upload a file.
///
///
public void upload(string fileName)
{
upload(fileName,false);
}

///
/// Upload a file and set the resume flag.
///
///
///
public void upload(string fileName,Boolean resume)
{

if(!logined)
{
login();
}

Socket cSocket = createDataSocket();
long offset=0;

if(resume)
{

try
{
setBinaryMode(true);
offset = getFileSize(fileName);

}
catch(Exception)
{
offset = 0;
}
}

if(offset > 0 )
{
sendCommand("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.
///
///
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.
///
///
///
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 file.
//  i.e. It will overwrite if newFileName exist
sendCommand("RNTO "+newFileName);
if(retValue != 250)
{
throw new IOException(reply.Substring(4));
}

}

///
/// Create a directory on the remote FTP server.
///
///
public void mkdir(string dirName)
{

if(!logined)

{
login();
}

sendCommand("MKD "+dirName);

if(retValue != 250)
{
throw new IOException(reply.Substring(4));
}

}

///
/// Delete a directory on the remote FTP server.
///
///
public void rmdir(string dirName)
{

if(!logined)
{
login();
}

sendCommand("RMD "+dirName);

if(retValue != 250)
{
throw new IOException(reply.Substring(4));
}

}

///
/// Change the current working directory on the remote FTP server.
///
///
public void chdir(string dirName)
{

if(dirName.Equals("."))
{
return;
}

if(!logined)
{
login();
}

sendCommand("CWD "+dirName);

if(retValue != 250)
{
throw new IOException(reply.Substring(4));
}

this.remotePath = dirName;

Console.WriteLine("Current directory is "+remotePath);

}

///
/// Close the FTP connection.
///
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 += ASCII.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.ASCII.GetBytes((command+"\r\n").ToCharArray());
clientSocket.Send(cmdBytes, cmdBytes.Length, 0);
readReply();
}

private Socket createDataSocket()
{

sendCommand("PASV");

if(retValue != 227)
{
throw new IOException(reply.Substring(4));
}

int index1 = reply.IndexOf("(");
int index2 = reply.IndexOf(")");
string ipData = reply.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 IOException("Malformed PASV reply: " + reply);
}

if (ch == ',' || i+1 == len)
{

try
{
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);
IPEndPoint ep = new IPEndPoint(Dns.GetHostEntry(ipAddress).AddressList[0], port);

try
{
s.Connect(ep);
}
catch(Exception)
{
throw new IOException("Can't connect to remote server");
}

return s;
}

}
}
<div class="code_main">/*

文件 : Test.cs
用下面的命令行编译
csc.exe /t:exe /r:System.DLL /r:FTPLib.dll /out:"Test.exe" "Test.cs"

*/
using System;
using FtpLib;

public class Test {

static void Main(string[] args)
{
if (args.Length == 0 || args[0].Equals("/?"))
{
DisplayUsage();
}
else if (args.Length == 5)
{
myftp(args[0], args[1], args[2], args[3], args[4]);
}
else
{
Console.WriteLine("不可识别的参数！");
}
}

public static void myftp(string ftpServer,string ftpUser,string ftpPass,string ftpDir,string ftpFileName) {

try {

Console.WriteLine("Starting...");

FTPFactory ff = new FTPFactory();
ff.setDebug(true);
ff.setRemoteHost(ftpServer);
ff.setRemoteUser(ftpUser);
ff.setRemotePass(ftpPass);
ff.login();
ff.chdir(ftpDir);

string[] fileNames = ff.getFileList("*.*");
for(int i=0;i < fileNames.Length;i++) {
Console.WriteLine(fileNames[i]);
}

ff.setBinaryMode(true);
ff.upload(@ftpFileName);
ff.close();

}catch(Exception e) {
Console.WriteLine("出错信息 :"+e.Message);
}
}

static void DisplayUsage()
{
Console.WriteLine("用法:");
Console.WriteLine("    ftpDemo [/? | <FTPServer>  <FTPUser>");
Console.WriteLine("               <FTPPassword>  <Directory> <LocalFileName>");
Console.WriteLine();
Console.WriteLine("这里");
Console.WriteLine("    FTPServer        FTP服务器.");
Console.WriteLine("    FTPUser          FTP用户名.");
Console.WriteLine("    FTPPassword      FTP密码");
Console.WriteLine("    Directory FTP    目录.");
Console.WriteLine("    LocalFileName    本地文件名");
Console.WriteLine();
Console.WriteLine("命令行实例:");
Console.WriteLine("    上传文件      FtpDemo 192.168.0.110 110 110 / test.txt");
}
}
</div>
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