using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net;
using System.IO;
using System.Globalization;
using System.Text.RegularExpressions;
using System.Text;
using System.Collections.Generic;
namespace Com.DRPENG.RmsWeb.WebStruct
{
//// <summary>
/// FTP处理操作类
/// 功能：
/// 下载文件
/// 上传文件
/// 上传文件的进度信息
/// 下载文件的进度信息
/// 删除文件
/// 列出文件
/// 列出目录
/// 进入子目录
/// 退出当前目录返回上一层目录
/// 判断远程文件是否存在
/// 判断远程文件是否存在
/// 删除远程文件
/// 建立目录
/// 删除目录
/// 文件（目录）改名
/// </summary>
public class FtpHelper
{
#region 属性信息
/// <summary>
/// FTP请求对象
/// </summary>
FtpWebRequest Request = null;
/// <summary>
/// FTP响应对象
/// </summary>
FtpWebResponse Response = null;
/// <summary>
/// FTP的URI
/// </summary>
private Uri _Uri;
/// <summary>
/// FTP的URI
/// </summary>
public Uri Uri
{
get
{
if (_DirectoryPath == "/")
{
return _Uri;
}
else
{
string strUri = _Uri.ToString();
if (strUri.EndsWith("/"))
{
strUri = strUri.Substring(0, strUri.Length - 1);
}
return new Uri(strUri + this.DirectoryPath);
}
}
set
{
if (value.Scheme != Uri.UriSchemeFtp)
{
throw new Exception("Ftp 地址格式错误!");
}
_Uri = new Uri(value.GetLeftPart(UriPartial.Authority));
_DirectoryPath = value.AbsolutePath;
if (!_DirectoryPath.EndsWith("/"))
{
_DirectoryPath += "/";
}
}
}
/// <summary>
/// 当前工作目录
/// </summary>
private string _DirectoryPath;
/// <summary>
/// 当前工作目录
/// </summary>
public string DirectoryPath
{
get { return _DirectoryPath; }
set { _DirectoryPath = value; }
}
/// <summary>
/// FTP登录用户
/// </summary>
private string _UserName;
/// <summary>
/// FTP登录用户
/// </summary>
public string UserName
{
get { return _UserName; }
set { _UserName = value; }
}
/// <summary>
/// 错误信息
/// </summary>
private string _ErrorMsg;
/// <summary>
/// 错误信息
/// </summary>
public string ErrorMsg
{
get { return _ErrorMsg; }
set { _ErrorMsg = value; }
}
/// <summary>
/// FTP登录密码
/// </summary>
private string _Password;
/// <summary>
/// FTP登录密码
/// </summary>
public string Password
{
get { return _Password; }
set { _Password = value; }
}
/// <summary>
/// 连接FTP服务器的代理服务
/// </summary>
private WebProxy _Proxy = null;
/// <summary>
/// 连接FTP服务器的代理服务
/// </summary>
public WebProxy Proxy
{
get
{
return _Proxy;
}
set
{
_Proxy = value;
}
}
/// <summary>
/// 是否需要删除临时文件
/// </summary>
private bool _isDeleteTempFile = false;
/// <summary>
/// 异步上传所临时生成的文件
/// </summary>
private string _UploadTempFile = "";
#endregion
#region 事件
public delegate void De_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e);
public delegate void De_DownloadDataCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e);
public delegate void De_UploadProgressChanged(object sender, UploadProgressChangedEventArgs e);
public delegate void De_UploadFileCompleted(object sender, UploadFileCompletedEventArgs e);
/// <summary>
/// 异步下载进度发生改变触发的事件
/// </summary>
public event De_DownloadProgressChanged DownloadProgressChanged;
/// <summary>
/// 异步下载文件完成之后触发的事件
/// </summary>
public event De_DownloadDataCompleted DownloadDataCompleted;
/// <summary>
/// 异步上传进度发生改变触发的事件
/// </summary>
public event De_UploadProgressChanged UploadProgressChanged;
/// <summary>
/// 异步上传文件完成之后触发的事件
/// </summary>
public event De_UploadFileCompleted UploadFileCompleted;
#endregion
#region 构造析构函数
/// <summary>
/// 构造函数
/// </summary>
/// <param name="FtpUri">FTP地址</param>
/// <param name="strUserName">登录用户名</param>
/// <param name="strPassword">登录密码</param>
public FtpHelper(Uri FtpUri, string strUserName, string strPassword)
{
this._Uri = new Uri(FtpUri.GetLeftPart(UriPartial.Authority));
_DirectoryPath = FtpUri.AbsolutePath;
if (!_DirectoryPath.EndsWith("/"))
{
_DirectoryPath += "/";
}
this._UserName = strUserName;
this._Password = strPassword;
this._Proxy = null;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="FtpUri">FTP地址</param>
/// <param name="strUserName">登录用户名</param>
/// <param name="strPassword">登录密码</param>
/// <param name="objProxy">连接代理</param>
public FtpHelper(Uri FtpUri, string strUserName, string strPassword, WebProxy objProxy)
{
this._Uri = new Uri(FtpUri.GetLeftPart(UriPartial.Authority));
_DirectoryPath = FtpUri.AbsolutePath;
if (!_DirectoryPath.EndsWith("/"))
{
_DirectoryPath += "/";
}
this._UserName = strUserName;
this._Password = strPassword;
this._Proxy = objProxy;
}
/// <summary>
/// 构造函数
/// </summary>
public FtpHelper()
{
this._UserName = "anonymous"; //匿名用户
this._Password = "@anonymous";
this._Uri = null;
this._Proxy = null;
}
/// <summary>
/// 析构函数
/// </summary>
~FtpHelper()
{
if (Response != null)
{
Response.Close();
Response = null;
}
if (Request != null)
{
Request.Abort();
Request = null;
}
}
#endregion
#region 建立连接
/// <summary>
/// 建立FTP链接,返回响应对象
/// </summary>
/// <param name="uri">FTP地址</param>
/// <param name="FtpMathod">操作命令,如：WebRequestMethods.Ftp.UploadFile</param>
private FtpWebResponse Open(Uri uri, string FtpMathod)
{
try
{
Request = (FtpWebRequest)WebRequest.Create(uri);
Request.Method = FtpMathod;
Request.UseBinary = true;
Request.Credentials = new NetworkCredential(this.UserName, this.Password);
// Request.EnableSsl = true;
if (this.Proxy != null)
{
Request.Proxy = this.Proxy;
}
return (FtpWebResponse)Request.GetResponse();
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 建立FTP链接,返回请求对象
/// </summary>
/// <param name="uri">FTP地址</param>
/// <param name="FtpMathod">操作命令</param>
private FtpWebRequest OpenRequest(Uri uri, string FtpMathod)
{
try
{
Request = (FtpWebRequest)WebRequest.Create(uri);
Request.Method = FtpMathod;
Request.UseBinary = true;
Request.Credentials = new NetworkCredential(this.UserName, this.Password);
// Request.EnableSsl = true;
if (this.Proxy != null)
{
Request.Proxy = this.Proxy;
}
return Request;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 下载文件
/// <summary>
/// 从FTP服务器下载文件，使用与远程文件同名的文件名来保存文件
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
/// <param name="LocalPath">本地路径</param>
public bool DownloadFile(string RemoteFileName, string LocalPath)
{
return DownloadFile(RemoteFileName, LocalPath, RemoteFileName);
}
/// <summary>
/// 从FTP服务器下载文件，指定本地路径和本地文件名
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
/// <param name="LocalPath">本地路径</param>
/// <param name="LocalFilePath">保存文件的本地路径,后面带有"\"</param>
/// <param name="LocalFileName">保存本地的文件名</param>
public bool DownloadFile(string RemoteFileName, string LocalPath, string LocalFileName)
{
byte[] bt = null;
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(LocalFileName) || !IsValidPathChars(LocalPath))
{
throw new Exception("非法文件名或目录名!");
}
if (!Directory.Exists(LocalPath))
{
throw new Exception("本地文件路径不存在!");
}
string LocalFullPath = Path.Combine(LocalPath, LocalFileName);
if (File.Exists(LocalFullPath))
{
throw new Exception("当前路径下已经存在同名文件！");
}
bt = DownloadFile(RemoteFileName);
if (bt != null)
{
FileStream stream = new FileStream(LocalFullPath, FileMode.Create);
stream.Write(bt, 0, bt.Length);
stream.Flush();
stream.Close();
return true;
}
else
{
return false;
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 从FTP服务器下载文件，返回文件二进制数据
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
public byte[] DownloadFile(string RemoteFileName)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名或目录名!");
}
Response = Open(new Uri(this.Uri.ToString() + RemoteFileName), WebRequestMethods.Ftp.DownloadFile);
Stream Reader = Response.GetResponseStream();
MemoryStream mem = new MemoryStream(1024 * 500);
byte[] buffer = new byte[1024];
int bytesRead = 0;
int TotalByteRead = 0;
while (true)
{
bytesRead = Reader.Read(buffer, 0, buffer.Length);
TotalByteRead += bytesRead;
if (bytesRead == 0)
break;
mem.Write(buffer, 0, bytesRead);
}
if (mem.Length > 0)
{
return mem.ToArray();
}
else
{
return null;
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 异步下载文件
/// <summary>
/// 从FTP服务器异步下载文件，指定本地路径和本地文件名
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
/// <param name="LocalPath">保存文件的本地路径,后面带有"\"</param>
/// <param name="LocalFileName">保存本地的文件名</param>
public void DownloadFileAsync(string RemoteFileName, string LocalPath, string LocalFileName)
{
byte[] bt = null;
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(LocalFileName) || !IsValidPathChars(LocalPath))
{
throw new Exception("非法文件名或目录名!");
}
if (!Directory.Exists(LocalPath))
{
throw new Exception("本地文件路径不存在!");
}
string LocalFullPath = Path.Combine(LocalPath, LocalFileName);
if (File.Exists(LocalFullPath))
{
throw new Exception("当前路径下已经存在同名文件！");
}
DownloadFileAsync(RemoteFileName, LocalFullPath);
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 从FTP服务器异步下载文件，指定本地完整路径文件名
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
/// <param name="LocalFullPath">本地完整路径文件名</param>
public void DownloadFileAsync(string RemoteFileName, string LocalFullPath)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名或目录名!");
}
if (File.Exists(LocalFullPath))
{
throw new Exception("当前路径下已经存在同名文件！");
}
MyWebClient client = new MyWebClient();
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
client.DownloadFileCompleted += new System.ComponentModel.AsyncCompletedEventHandler(client_DownloadFileCompleted);
client.Credentials = new NetworkCredential(this.UserName, this.Password);
if (this.Proxy != null)
{
client.Proxy = this.Proxy;
}
client.DownloadFileAsync(new Uri(this.Uri.ToString() + RemoteFileName), LocalFullPath);
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 异步下载文件完成之后触发的事件
/// </summary>
/// <param name="sender">下载对象</param>
/// <param name="e">数据信息对象</param>
void client_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
if (DownloadDataCompleted != null)
{
DownloadDataCompleted(sender, e);
}
}
/// <summary>
/// 异步下载进度发生改变触发的事件
/// </summary>
/// <param name="sender">下载对象</param>
/// <param name="e">进度信息对象</param>
void client_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
if (DownloadProgressChanged != null)
{
DownloadProgressChanged(sender, e);
}
}
#endregion
#region 上传文件
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件名</param>
public bool UploadFile(string LocalFullPath)
{
return UploadFile(LocalFullPath, Path.GetFileName(LocalFullPath), false);
}
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public bool UploadFile(string LocalFullPath, bool OverWriteRemoteFile)
{
return UploadFile(LocalFullPath, Path.GetFileName(LocalFullPath), OverWriteRemoteFile);
}
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
public bool UploadFile(string LocalFullPath, string RemoteFileName)
{
return UploadFile(LocalFullPath, RemoteFileName, false);
}
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件名</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public bool UploadFile(string LocalFullPath, string RemoteFileName, bool OverWriteRemoteFile)
{
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(Path.GetFileName(LocalFullPath)) || !IsValidPathChars(Path.GetDirectoryName(LocalFullPath)))
{
throw new Exception("非法文件名或目录名!");
}
if (File.Exists(LocalFullPath))
{
FileStream Stream = new FileStream(LocalFullPath, FileMode.Open, FileAccess.Read);
byte[] bt = new byte[Stream.Length];
Stream.Read(bt, 0, (Int32)Stream.Length); //注意，因为Int32的最大限制，最大上传文件只能是大约2G多一点
Stream.Close();
return UploadFile(bt, RemoteFileName, OverWriteRemoteFile);
}
else
{
throw new Exception("本地文件不存在!");
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="FileBytes">上传的二进制数据</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
public bool UploadFile(byte[] FileBytes, string RemoteFileName)
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名或目录名!");
}
return UploadFile(FileBytes, RemoteFileName, false);
}
//从客户端上传文件到FTP上
public void UploadFile(HttpPostedFile sFilePath, string RemoteFileName)
{
if (sFilePath == null || sFilePath.InputStream == null)
return;
Response = Open(new Uri(this.Uri.ToString() + "/" + RemoteFileName), WebRequestMethods.Ftp.UploadFile);
Stream requestStream = Request.GetRequestStream();
//设置缓存
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
using (Stream fs = sFilePath.InputStream)
{
using (Stream strm = requestStream)
{
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
}
fs.Close();
}
}
/// <summary>
/// 上传文件到FTP服务器
/// </summary>
/// <param name="FileBytes">文件二进制内容</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public bool UploadFile(byte[] FileBytes, string RemoteFileName, bool OverWriteRemoteFile)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名！");
}
//if (!OverWriteRemoteFile && FileExist(RemoteFileName))
//{
// throw new Exception("FTP服务上面已经存在同名文件！");
//}
Response = Open(new Uri(this.Uri.ToString() + "/" + RemoteFileName), WebRequestMethods.Ftp.UploadFile);
Stream requestStream = Request.GetRequestStream();
MemoryStream mem = new MemoryStream(FileBytes);
byte[] buffer = new byte[1024];
int bytesRead = 0;
int TotalRead = 0;
while (true)
{
bytesRead = mem.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
TotalRead += bytesRead;
requestStream.Write(buffer, 0, bytesRead);
}
requestStream.Close();
Response = (FtpWebResponse)Request.GetResponse();
mem.Close();
mem.Dispose();
FileBytes = null;
return true;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 异步上传文件
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件名</param>
public void UploadFileAsync(string LocalFullPath)
{
UploadFileAsync(LocalFullPath, Path.GetFileName(LocalFullPath), false);
}
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public void UploadFileAsync(string LocalFullPath, bool OverWriteRemoteFile)
{
UploadFileAsync(LocalFullPath, Path.GetFileName(LocalFullPath), OverWriteRemoteFile);
}
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
public void UploadFileAsync(string LocalFullPath, string RemoteFileName)
{
UploadFileAsync(LocalFullPath, RemoteFileName, false);
}
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="LocalFullPath">本地带有完整路径的文件名</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public void UploadFileAsync(string LocalFullPath, string RemoteFileName, bool OverWriteRemoteFile)
{
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(Path.GetFileName(LocalFullPath)) || !IsValidPathChars(Path.GetDirectoryName(LocalFullPath)))
{
throw new Exception("非法文件名或目录名!");
}
if (!OverWriteRemoteFile && FileExist(RemoteFileName))
{
throw new Exception("FTP服务上面已经存在同名文件！");
}
if (File.Exists(LocalFullPath))
{
MyWebClient client = new MyWebClient();
client.UploadProgressChanged += new UploadProgressChangedEventHandler(client_UploadProgressChanged);
client.UploadFileCompleted += new UploadFileCompletedEventHandler(client_UploadFileCompleted);
client.Credentials = new NetworkCredential(this.UserName, this.Password);
if (this.Proxy != null)
{
client.Proxy = this.Proxy;
}
client.UploadFileAsync(new Uri(this.Uri.ToString() + RemoteFileName), LocalFullPath);
}
else
{
throw new Exception("本地文件不存在!");
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="FileBytes">上传的二进制数据</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
public void UploadFileAsync(byte[] FileBytes, string RemoteFileName)
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名或目录名!");
}
UploadFileAsync(FileBytes, RemoteFileName, false);
}
/// <summary>
/// 异步上传文件到FTP服务器
/// </summary>
/// <param name="FileBytes">文件二进制内容</param>
/// <param name="RemoteFileName">要在FTP服务器上面保存文件名</param>
/// <param name="OverWriteRemoteFile">是否覆盖远程服务器上面同名的文件</param>
public void UploadFileAsync(byte[] FileBytes, string RemoteFileName, bool OverWriteRemoteFile)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("非法文件名！");
}
if (!OverWriteRemoteFile && FileExist(RemoteFileName))
{
throw new Exception("FTP服务上面已经存在同名文件！");
}
string TempPath = System.Environment.GetFolderPath(Environment.SpecialFolder.Templates);
if (!TempPath.EndsWith("\\"))
{
TempPath += "\\";
}
string TempFile = TempPath + Path.GetRandomFileName();
TempFile = Path.ChangeExtension(TempFile, Path.GetExtension(RemoteFileName));
FileStream Stream = new FileStream(TempFile, FileMode.CreateNew, FileAccess.Write);
Stream.Write(FileBytes, 0, FileBytes.Length); //注意，因为Int32的最大限制，最大上传文件只能是大约2G多一点
Stream.Flush();
Stream.Close();
Stream.Dispose();
_isDeleteTempFile = true;
_UploadTempFile = TempFile;
FileBytes = null;
UploadFileAsync(TempFile, RemoteFileName, OverWriteRemoteFile);
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 异步上传文件完成之后触发的事件
/// </summary>
/// <param name="sender">下载对象</param>
/// <param name="e">数据信息对象</param>
void client_UploadFileCompleted(object sender, UploadFileCompletedEventArgs e)
{
if (_isDeleteTempFile)
{
if (File.Exists(_UploadTempFile))
{
File.SetAttributes(_UploadTempFile, FileAttributes.Normal);
File.Delete(_UploadTempFile);
}
_isDeleteTempFile = false;
}
if (UploadFileCompleted != null)
{
UploadFileCompleted(sender, e);
}
}
/// <summary>
/// 异步上传进度发生改变触发的事件
/// </summary>
/// <param name="sender">下载对象</param>
/// <param name="e">进度信息对象</param>
void client_UploadProgressChanged(object sender, UploadProgressChangedEventArgs e)
{
if (UploadProgressChanged != null)
{
UploadProgressChanged(sender, e);
}
}
#endregion
#region 列出目录文件信息
/// <summary>
/// 列出FTP服务器上面当前目录的所有文件和目录
/// </summary>
public FileStruct[] ListFilesAndDirectories()
{
Response = Open(this.Uri, WebRequestMethods.Ftp.ListDirectoryDetails);
StreamReader stream = new StreamReader(Response.GetResponseStream(), Encoding.Default);
string Datastring = stream.ReadToEnd();
FileStruct[] list = GetList(Datastring);
return list;
}
/// <summary>
/// 列出FTP服务器上面当前目录的所有文件
/// </summary>
public FileStruct[] ListFiles()
{
FileStruct[] listAll = ListFilesAndDirectories();
List<FileStruct> listFile = new List<FileStruct>();
foreach (FileStruct file in listAll)
{
if (!file.IsDirectory)
{
listFile.Add(file);
}
}
return listFile.ToArray();
}
/// <summary>
/// 列出FTP服务器上面当前目录的所有的目录
/// </summary>
public FileStruct[] ListDirectories()
{
FileStruct[] listAll = ListFilesAndDirectories();
List<FileStruct> listDirectory = new List<FileStruct>();
foreach (FileStruct file in listAll)
{
if (file.IsDirectory)
{
listDirectory.Add(file);
}
}
return listDirectory.ToArray();
}
/// <summary>
/// 获得文件和目录列表
/// </summary>
/// <param name="datastring">FTP返回的列表字符信息</param>
private FileStruct[] GetList(string datastring)
{
List<FileStruct> myListArray = new List<FileStruct>();
string[] dataRecords = datastring.Split('\n');
FileListStyle _directoryListStyle = GuessFileListStyle(dataRecords);
foreach (string s in dataRecords)
{
if (_directoryListStyle != FileListStyle.Unknown && s != "")
{
FileStruct f = new FileStruct();
f.Name = "..";
switch (_directoryListStyle)
{
case FileListStyle.UnixStyle:
f = ParseFileStructFromUnixStyleRecord(s);
break;
case FileListStyle.WindowsStyle:
f = ParseFileStructFromWindowsStyleRecord(s);
break;
}
if (!(f.Name == "." || f.Name == ".."))
{
myListArray.Add(f);
}
}
}
return myListArray.ToArray();
}
/// <summary>
/// 从Windows格式中返回文件信息
/// </summary>
/// <param name="Record">文件信息</param>
private FileStruct ParseFileStructFromWindowsStyleRecord(string Record)
{
FileStruct f = new FileStruct();
string processstr = Record.Trim();
string dateStr = processstr.Substring(0, 8);
processstr = (processstr.Substring(8, processstr.Length - 8)).Trim();
string timeStr = processstr.Substring(0, 7);
processstr = (processstr.Substring(7, processstr.Length - 7)).Trim();
DateTimeFormatInfo myDTFI = new CultureInfo("en-US", false).DateTimeFormat;
myDTFI.ShortTimePattern = "t";
f.CreateTime = DateTime.Parse(dateStr + " " + timeStr, myDTFI);
if (processstr.Substring(0, 5) == "<DIR>")
{
f.IsDirectory = true;
processstr = (processstr.Substring(5, processstr.Length - 5)).Trim();
}
else
{
string[] strs = processstr.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries); // true);
processstr = strs[1];
f.IsDirectory = false;
}
f.Name = processstr;
return f;
}
/// <summary>
/// 判断文件列表的方式Window方式还是Unix方式
/// </summary>
/// <param name="recordList">文件信息列表</param>
private FileListStyle GuessFileListStyle(string[] recordList)
{
foreach (string s in recordList)
{
if (s.Length > 10
&& Regex.IsMatch(s.Substring(0, 10), "(-|d)(-|r)(-|w)(-|x)(-|r)(-|w)(-|x)(-|r)(-|w)(-|x)"))
{
return FileListStyle.UnixStyle;
}
else if (s.Length > 8
&& Regex.IsMatch(s.Substring(0, 8), "[0-9][0-9]-[0-9][0-9]-[0-9][0-9]"))
{
return FileListStyle.WindowsStyle;
}
}
return FileListStyle.Unknown;
}
/// <summary>
/// 从Unix格式中返回文件信息
/// </summary>
/// <param name="Record">文件信息</param>
private FileStruct ParseFileStructFromUnixStyleRecord(string Record)
{
FileStruct f = new FileStruct();
string processstr = Record.Trim();
f.Flags = processstr.Substring(0, 10);
f.IsDirectory = (f.Flags[0] == 'd');
processstr = (processstr.Substring(11)).Trim();
_cutSubstringFromStringWithTrim(ref processstr, ' ', 0); //跳过一部分
f.Owner = _cutSubstringFromStringWithTrim(ref processstr, ' ', 0);
f.Group = _cutSubstringFromStringWithTrim(ref processstr, ' ', 0);
_cutSubstringFromStringWithTrim(ref processstr, ' ', 0); //跳过一部分
string yearOrTime = processstr.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)[2];
if (yearOrTime.IndexOf(":") >= 0) //time
{
processstr = processstr.Replace(yearOrTime, DateTime.Now.Year.ToString());
}
f.CreateTime = DateTime.Parse(_cutSubstringFromStringWithTrim(ref processstr, ' ', 8));
f.Name = processstr; //最后就是名称
return f;
}
/// <summary>
/// 按照一定的规则进行字符串截取
/// </summary>
/// <param name="s">截取的字符串</param>
/// <param name="c">查找的字符</param>
/// <param name="startIndex">查找的位置</param>
private string _cutSubstringFromStringWithTrim(ref string s, char c, int startIndex)
{
int pos1 = s.IndexOf(c, startIndex);
string retString = s.Substring(0, pos1);
s = (s.Substring(pos1)).Trim();
return retString;
}
#endregion
#region 目录或文件存在的判断
/// <summary>
/// 判断当前目录下指定的子目录是否存在
/// </summary>
/// <param name="RemoteDirectoryName">指定的目录名</param>
public bool DirectoryExist(string RemoteDirectoryName)
{
try
{
if (!IsValidPathChars(RemoteDirectoryName))
{
throw new Exception("目录名非法！");
}
FileStruct[] listDir = ListDirectories();
foreach (FileStruct dir in listDir)
{
if (dir.Name == RemoteDirectoryName)
{
return true;
}
}
return false;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 判断一个远程文件是否存在服务器当前目录下面
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
public bool FileExist(string RemoteFileName)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("文件名非法！");
}
FileStruct[] listFile = ListFiles();
foreach (FileStruct file in listFile)
{
if (file.Name == RemoteFileName)
{
return true;
}
}
return false;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 删除文件
/// <summary>
/// 从FTP服务器上面删除一个文件
/// </summary>
/// <param name="RemoteFileName">远程文件名</param>
public void DeleteFile(string RemoteFileName)
{
try
{
if (!IsValidFileChars(RemoteFileName))
{
throw new Exception("文件名非法！");
}
Response = Open(new Uri(this.Uri.ToString() + RemoteFileName), WebRequestMethods.Ftp.DeleteFile);
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 重命名文件
/// <summary>
/// 更改一个文件的名称或一个目录的名称
/// </summary>
/// <param name="RemoteFileName">原始文件或目录名称</param>
/// <param name="NewFileName">新的文件或目录的名称</param>
public bool ReName(string RemoteFileName, string NewFileName)
{
try
{
if (!IsValidFileChars(RemoteFileName) || !IsValidFileChars(NewFileName))
{
throw new Exception("文件名非法！");
}
if (RemoteFileName == NewFileName)
{
return true;
}
if (FileExist(RemoteFileName))
{
Request = OpenRequest(new Uri(this.Uri.ToString() + RemoteFileName), WebRequestMethods.Ftp.Rename);
Request.RenameTo = NewFileName;
Response = (FtpWebResponse)Request.GetResponse();
}
else
{
throw new Exception("文件在服务器上不存在！");
}
return true;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 拷贝、移动文件
/// <summary>
/// 把当前目录下面的一个文件拷贝到服务器上面另外的目录中，注意，拷贝文件之后，当前工作目录还是文件原来所在的目录
/// </summary>
/// <param name="RemoteFile">当前目录下的文件名</param>
/// <param name="DirectoryName">新目录名称。
/// 说明：如果新目录是当前目录的子目录，则直接指定子目录。如: SubDirectory1/SubDirectory2 ；
/// 如果新目录不是当前目录的子目录，则必须从根目录一级一级的指定。如： ./NewDirectory/SubDirectory1/SubDirectory2
/// </param>
/// <returns></returns>
public bool CopyFileToAnotherDirectory(string RemoteFile, string DirectoryName)
{
string CurrentWorkDir = this.DirectoryPath;
try
{
byte[] bt = DownloadFile(RemoteFile);
GotoDirectory(DirectoryName);
bool Success = UploadFile(bt, RemoteFile, false);
this.DirectoryPath = CurrentWorkDir;
return Success;
}
catch (Exception ep)
{
this.DirectoryPath = CurrentWorkDir;
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 把当前目录下面的一个文件移动到服务器上面另外的目录中，注意，移动文件之后，当前工作目录还是文件原来所在的目录
/// </summary>
/// <param name="RemoteFile">当前目录下的文件名</param>
/// <param name="DirectoryName">新目录名称。
/// 说明：如果新目录是当前目录的子目录，则直接指定子目录。如: SubDirectory1/SubDirectory2 ；
/// 如果新目录不是当前目录的子目录，则必须从根目录一级一级的指定。如： ./NewDirectory/SubDirectory1/SubDirectory2
/// </param>
/// <returns></returns>
public bool MoveFileToAnotherDirectory(string RemoteFile, string DirectoryName)
{
string CurrentWorkDir = this.DirectoryPath;
try
{
if (DirectoryName == "")
return false;
if (!DirectoryName.StartsWith("/"))
DirectoryName = "/" + DirectoryName;
if (!DirectoryName.EndsWith("/"))
DirectoryName += "/";
bool Success = ReName(RemoteFile, DirectoryName + RemoteFile);
this.DirectoryPath = CurrentWorkDir;
return Success;
}
catch (Exception ep)
{
this.DirectoryPath = CurrentWorkDir;
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
#region 建立、删除子目录
/// <summary>
/// 在FTP服务器上当前工作目录建立一个子目录
/// </summary>
/// <param name="DirectoryName">子目录名称</param>
public bool MakeDirectory(string DirectoryName)
{
try
{
List<string> strList = RmsBackGround.BusinessModel.Common.ChangeStringToList(DirectoryName, new string[] { "/" });
foreach (string str in strList)
{
if (!IsValidPathChars(str))
{
throw new Exception("目录名非法！");
}
string uri = Uri.ToString().EndsWith("/") ? Uri.ToString() + str : Uri.ToString() + "/" + str;
if (DirectoryExist(str))
{
//throw new Exception("服务器上面已经存在同名的文件名或目录名！");
this.Uri = new Uri(uri);
continue;
}
Response = Open(new Uri(uri), WebRequestMethods.Ftp.MakeDirectory);
this.Uri = new Uri(uri);
}
return true;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 从当前工作目录中删除一个子目录
/// </summary>
/// <param name="DirectoryName">子目录名称</param>
public bool RemoveDirectory(string DirectoryName)
{
try
{
if (!IsValidPathChars(DirectoryName))
{
throw new Exception("目录名非法！");
}
if (!DirectoryExist(DirectoryName))
{
throw new Exception("服务器上面不存在指定的文件名或目录名！");
}
Response = Open(new Uri(this.Uri.ToString() + DirectoryName), WebRequestMethods.Ftp.RemoveDirectory);
return true;
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
#endregion
FtpWebRequest reqFTP;
private void Connect(String path)//连接ftp
{
// 根据uri创建FtpWebRequest对象
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
// 指定数据传输类型
reqFTP.UseBinary = true;
// ftp用户名和密码
reqFTP.Credentials = new NetworkCredential(UserName, Password);
}
public void FTPMakeDir(string dirName)
{
try
{
string uri = "";
if (Uri.ToString().Substring(Uri.ToString().LastIndexOf('/')).Length ==1)
{
uri = Uri.ToString() + dirName;
}
else
{
uri = Uri.ToString() +"/"+ dirName;
}
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch
{
}
}
#region 文件、目录名称有效性判断
/// <summary>
/// 判断目录名中字符是否合法
/// </summary>
/// <param name="DirectoryName">目录名称</param>
public bool IsValidPathChars(string DirectoryName)
{
char[] invalidPathChars = Path.GetInvalidPathChars();
char[] DirChar = DirectoryName.ToCharArray();
foreach (char C in DirChar)
{
if (Array.BinarySearch(invalidPathChars, C) >= 0)
{
return false;
}
}
return true;
}
/// <summary>
/// 判断文件名中字符是否合法
/// </summary>
/// <param name="FileName">文件名称</param>
public bool IsValidFileChars(string FileName)
{
char[] invalidFileChars = Path.GetInvalidFileNameChars();
char[] NameChar = FileName.ToCharArray();
foreach (char C in NameChar)
{
if (Array.BinarySearch(invalidFileChars, C) >= 0)
{
return false;
}
}
return true;
}
#endregion
#region 目录切换操作
/// <summary>
/// 进入一个目录
/// </summary>
/// <param name="DirectoryName">
/// 新目录的名字。
/// 说明：如果新目录是当前目录的子目录，则直接指定子目录。如: SubDirectory1/SubDirectory2 ；
/// 如果新目录不是当前目录的子目录，则必须从根目录一级一级的指定。如： ./NewDirectory/SubDirectory1/SubDirectory2
/// </param>
public bool GotoDirectory(string DirectoryName)
{
string CurrentWorkPath = this.DirectoryPath;
try
{
DirectoryName = DirectoryName.Replace("\\", "/");
string[] DirectoryNames = DirectoryName.Split(new char[] { '/' });
if (DirectoryNames[0] == ".")
{
this.DirectoryPath = "/";
if (DirectoryNames.Length == 1)
{
return true;
}
Array.Clear(DirectoryNames, 0, 1);
}
bool Success = false;
foreach (string dir in DirectoryNames)
{
if (dir != null)
{
Success = EnterOneSubDirectory(dir);
if (!Success)
{
this.DirectoryPath = CurrentWorkPath;
return false;
}
}
}
return Success;
}
catch (Exception ep)
{
this.DirectoryPath = CurrentWorkPath;
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 从当前工作目录进入一个子目录
/// </summary>
/// <param name="DirectoryName">子目录名称</param>
private bool EnterOneSubDirectory(string DirectoryName)
{
try
{
if (DirectoryName.IndexOf("/") >= 0 || !IsValidPathChars(DirectoryName))
{
throw new Exception("目录名非法!");
}
if (DirectoryName.Length > 0 && DirectoryExist(DirectoryName))
{
if (!DirectoryName.EndsWith("/"))
{
DirectoryName += "/";
}
_DirectoryPath += DirectoryName;
return true;
}
else
{
return false;
}
}
catch (Exception ep)
{
ErrorMsg = ep.ToString();
throw ep;
}
}
/// <summary>
/// 从当前工作目录往上一级目录
/// </summary>
public bool ComeoutDirectory()
{
if (_DirectoryPath == "/")
{
ErrorMsg = "当前目录已经是根目录！";
throw new Exception("当前目录已经是根目录！");
}
char[] sp = new char[1] { '/' };
string[] strDir = _DirectoryPath.Split(sp, StringSplitOptions.RemoveEmptyEntries);
if (strDir.Length == 1)
{
_DirectoryPath = "/";
}
else
{
_DirectoryPath = String.Join("/", strDir, 0, strDir.Length - 1);
}
return true;
}
#endregion
#region 重载WebClient，支持FTP进度
internal class MyWebClient : WebClient
{
protected override WebRequest GetWebRequest(Uri address)
{
FtpWebRequest req = (FtpWebRequest)base.GetWebRequest(address);
req.UsePassive = false;
return req;
}
}
#endregion
}
#region 文件信息结构
public struct FileStruct
{
public string Flags;
public string Owner;
public string Group;
public bool IsDirectory;
public DateTime CreateTime;
public string Name;
}
public enum FileListStyle
{
UnixStyle,
WindowsStyle,
Unknown
}
#endregion
}