操作FTP上的xml文件
using System;using System.Net;
using System.IO;
using System.Text;
using System.Net.Sockets;
using System.Collections.Generic;
///
/// FTPClient 的摘要说明。
///
///
/// FTPClient 的摘要说明。
///
public class FTPClient
{
#region 构造函数
///
/// 缺省构造函数
///
public FTPClient()
{
strRemoteHost = "";
strRemotePath = "/";
strRemoteUser = "";
strRemotePass = "";
strRemotePort = 21;
bConnected = false;
} ///
/// 构造函数
///
///
///
///
///
///
public FTPClient(string remoteHost, string remotePath, string remoteUser, string remotePass, int remotePort)
{
strRemoteHost = remoteHost;
strRemotePath = remotePath;
strRemoteUser = remoteUser;
strRemotePass = remotePass;
strRemotePort = remotePort;
Connect();
}
#endregion
#region 登陆
///
/// FTP服务器IP地址
///
private string strRemoteHost;
public string RemoteHost
{
get
{
return strRemoteHost;
}
set
{
strRemoteHost = value;
}
}
///
/// FTP服务器端口
///
private int strRemotePort;
public int RemotePort
{
get
{
return strRemotePort;
}
set
{
strRemotePort = value;
}
}
///
/// 当前服务器目录
///
private string strRemotePath;
public string RemotePath
{
get
{
return strRemotePath;
}
set
{
strRemotePath = value;
}
}
///
/// 登录用户账号
///
private string strRemoteUser;
public string RemoteUser
{
set
{
strRemoteUser = value;
}
}
///
/// 用户登录密码
///
private string strRemotePass;
public string RemotePass
{
set
{
strRemotePass = value;
}
} ///
/// 是否登录
///
private Boolean bConnected;
public bool Connected
{
get
{
return bConnected;
}
}
#endregion
#region 链接
///
/// 建立连接
///
public void Connect()
{
socketControl = new Socket
(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse
(RemoteHost), strRemotePort);
// 链接
try
{
socketControl.Connect(ep);
}
catch (Exception)
{
throw new IOException("Couldn't connect toremote server");
} // 获取应答码
ReadReply();
if (iReplyCode != 220)
{
DisConnect();
throw new IOException(strReply.Substring(4));
} // 登陆
SendCommand("USER " + strRemoteUser);
if (!(iReplyCode == 331 || iReplyCode == 230))
{
CloseSocketConnect();//关闭连接
throw new IOException(strReply.Substring(4));
}
if (iReplyCode != 230)
{
SendCommand("PASS " + strRemotePass);
if (!(iReplyCode == 230 || iReplyCode == 202)
)
{
CloseSocketConnect();//关闭连接
throw new IOException
(strReply.Substring(4));
}
}
bConnected = true; // 切换到目录
ChDir(strRemotePath);
}
///
/// 关闭连接
///
public void DisConnect()
{
if (socketControl != null)
{
SendCommand("QUIT");
}
CloseSocketConnect();
}
#endregion
#region 传输模式 ///
/// 传输模式:二进制类型、ASCII类型
///
public enum TransferType { Binary, ASCII }; ///
/// 设置传输模式
///
/// 传输模式
public void SetTransferType(TransferType ttType)
{
if (ttType == TransferType.Binary)
{
SendCommand("TYPE I");//binary类型传输
}
else
{
SendCommand("TYPE A");//ASCII类型传输
}
if (iReplyCode != 200)
{
throw new IOException(strReply.Substring(4));
}
else
{
trType = ttType;
}
}
///
/// 获得传输模式
///
/// 传输模式
public TransferType GetTransferType()
{
return trType;
}
#endregion
#region 文件操作
///
/// 获得文件列表
///
/// 文件名的匹配字符串
///
public string[] GetFileList(string strMask)
{
// 建立链接
if (!bConnected)
{
Connect();
} //建立进行数据连接的socket
Socket socketData = CreateDataSocket();
//传送命令
SendCommand("NLST " + strMask); //分析应答代码
if (iReplyCode == 550)
{
return new string[] { };
}
if (!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226))
{
throw new IOException(strReply.Substring(4));
} //获得结果
strMsg = "";
while (true)
{
int iBytes = socketData.Receive(buffer,
buffer.Length, 0);
strMsg += ASCII.GetString(buffer, 0, iBytes);
if (iBytes < buffer.Length)
{
break;
}
}
char[] seperator = { '\n' };
string[] strsFileList = strMsg.Split(seperator);
socketData.Close();//数据socket关闭时也会有返回码
if (iReplyCode != 226)
{
ReadReply();
if (iReplyCode != 226)
{
throw new IOException
(strReply.Substring(4));
}
}
List files = new List();
for (int i = 0; i < strsFileList.Length; i++)
{
strsFileList = strsFileList.Replace("\\r", "");
if (strsFileList.Trim() != "")
{
files.Add(strsFileList.Trim());
}
}
return files.ToArray();
}
///
/// 获取文件大小
///
/// 文件名
/// 文件大小
private long GetFileSize(string strFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("SIZE " + Path.GetFileName(strFileName));
long lSize = 0;
if (iReplyCode == 213)
{
lSize = Int64.Parse(strReply.Substring(4));
}
else
{
throw new IOException(strReply.Substring(4));
}
return lSize;
}
///
/// 删除
///
/// 待删除文件名
public void Delete(string strFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("DELE " + strFileName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
///
/// 重命名(如果新文件名与已有文件重名,将覆盖已有文件)
///
/// 旧文件名
/// 新文件名
public void Rename(string strOldFileName, string strNewFileName)
{
if (!bConnected)
{
Connect();
}
SendCommand("RNFR " + strOldFileName);
if (iReplyCode != 350)
{
throw new IOException(strReply.Substring(4));
}
// 如果新文件名与原有文件重名,将覆盖原有文件
SendCommand("RNTO " + strNewFileName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
#endregion
#region 上传和下载
///
/// 下载一批文件
///
/// 文件名的匹配字符串
/// 本地目录(不得以\结束)
//public void Download(string strFileNameMask, string strFolder)
//{
// if (!bConnected)
// {
// Connect();
// }
// string[] strFiles = Dir(strFileNameMask);
// foreach (string strFile in strFiles)
// {
// if (!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串
// {
// Download(strFile, strFolder, strFile);
// }
// }
//}
///
/// 下载一个文件
///
/// 要下载的文件名
/// 本地目录(不得以\结束)
/// 保存在本地时的文件名
public void Download(string strFolder, string strRemoteFileName)
{
string strLocalFileName = strRemoteFileName;
if (!bConnected)
{
Connect();
}
SetTransferType(TransferType.Binary);
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName;
}
if (!File.Exists(strLocalFileName))
{
Stream st = File.Create(strLocalFileName);
st.Close();
}
FileStream output = new
FileStream(strFolder + "\\" +
strLocalFileName, FileMode.Create);
Socket socketData = CreateDataSocket();
SendCommand("RETR " + strRemoteFileName);
if (!(iReplyCode == 150 || iReplyCode == 125
|| iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
while (true)
{
int iBytes = socketData.Receive(buffer,
buffer.Length, 0);
output.Write(buffer, 0, iBytes);
if (iBytes0)
{
socketData.Send(buffer, iBytes, 0);
}
input.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException
(strReply.Substring(4));
}
}
}
#endregion
#region 目录操作
///
/// 创建目录
///
/// 目录名
public void MkDir(string strDirName)
{
if (!bConnected)
{
Connect();
}
SendCommand("MKD " + strDirName);
if (iReplyCode != 257)
{
throw new IOException(strReply.Substring(4));
}
}
///
/// 删除目录
///
/// 目录名
public void RmDir(string strDirName)
{
if (!bConnected)
{
Connect();
}
SendCommand("RMD " + strDirName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
}
///
/// 改变目录
///
/// 新的工作目录名
public void ChDir(string strDirName)
{
if (strDirName.Equals(".") || strDirName.Equals(""))
{
return;
}
if (!bConnected)
{
Connect();
}
SendCommand("CWD /" + strDirName);
if (iReplyCode != 250)
{
throw new IOException(strReply.Substring(4));
}
this.strRemotePath = strDirName;
}
#endregion
#region 内部变量
///
/// 服务器返回的应答信息(包含应答码)
///
private string strMsg;
///
/// 服务器返回的应答信息(包含应答码)
///
private string strReply;
///
/// 服务器返回的应答码
///
private int iReplyCode;
///
/// 进行控制连接的socket
///
private Socket socketControl;
///
/// 传输模式
///
private TransferType trType;
///
/// 接收和发送数据的缓冲区
///
private static int BLOCK_SIZE = 512;
Byte[] buffer = new Byte;
///
/// 编码方式
///
Encoding ASCII = Encoding.ASCII;
#endregion
#region 内部函数
///
/// 将一行应答字符串记录在strReply和strMsg
/// 应答码记录在iReplyCode
///
private void ReadReply()
{
strMsg = "";
strReply = ReadLine();
iReplyCode = Int32.Parse(strReply.Substring(0, 3));
} ///
/// 建立进行数据连接的socket
///
/// 数据连接socket
private Socket CreateDataSocket()
{
SendCommand("PASV");
if (iReplyCode != 227)
{
throw new IOException(strReply.Substring(4));
}
int index1 = strReply.IndexOf('(');
int index2 = strReply.IndexOf(')');
string ipData =
strReply.Substring(index1 + 1, index2 - index1 - 1);
int[] parts = new int;
int len = ipData.Length;
int partCount = 0;
string buf = "";
for (int i = 0; i < len && partCount
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