/// <summary>
/// 判斷指定的文件是否存在
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public bool IsExists(FtpParameter p)
{
string name = ComFunc.FindFileName(p.FTP_URL);
string dir = p.FTP_URL;
if (name.Length > 0)
{
dir = dir.Replace(name, "");
}
StringStd l = ListDirectory(p);
StringStd[] ls = l.Split("\r\n");
List <StringStd> lists = new List <StringStd>();
foreach (StringStd s in ls)
{
lists.Add(s.ToUpper());
}
if (lists.Contains(name.ToUpper()))
{
return(true);
}
else
{
return(false);
}
}
private void InitByParameters(FtpParameter p)
{
ftpRequest = (FtpWebRequest)WebRequest.Create(p.FTP_URL);
if (p.Login_UserId != "")
{
ftpRequest.Credentials = new NetworkCredential(p.Login_UserId, p.Login_Password);
}
ftpRequest.UseBinary = p.UseBinary;
ftpRequest.KeepAlive = p.KeepAlive;
ftpRequest.UsePassive = p.UsePassive;
ftpRequest.Timeout = p.TimeOut;
encoding = Encoding.GetEncoding(p.EncodingString);
}
//创建目录
public Boolean FtpMakeDir(FtpParameter p)
{
InitByParameters(p);
ftpRequest.Method = WebRequestMethods.Ftp.MakeDirectory;
try
{
FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse();
response.Close();
}
finally
{
Release();
}
return(true);
}
/// <summary>
/// 獲取指定文件的size
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public string FileSize(FtpParameter p)
{
string rtn = "";
try
{
InitByParameters(p);
ftpRequest.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse listResponse =
(FtpWebResponse)ftpRequest.GetResponse();
rtn = listResponse.ContentLength.ToString();
}
finally
{
Release();
}
return(rtn);
}
private void SendFileToFtp(FtpParameter ftpParams)
{
FtpWebRequest requestFtp = (FtpWebRequest)WebRequest.Create(ftpParams.FtpPath + ftpParams.FileName);
requestFtp.Method = WebRequestMethods.Ftp.UploadFile;
requestFtp.KeepAlive = ftpParams.KeepAlive;
requestFtp.UsePassive = ftpParams.UsePassive;
requestFtp.Credentials = new NetworkCredential(ftpParams.Username, ftpParams.Password);
StreamReader strmLectura = new StreamReader(ftpParams.FilePath + ftpParams.FileName);
byte[] bInfoArchivo = Encoding.UTF8.GetBytes(strmLectura.ReadToEnd());
strmLectura.Close();
requestFtp.ContentLength = bInfoArchivo.Length;
Stream strmRequest = requestFtp.GetRequestStream();
strmRequest.Write(bInfoArchivo, 0, bInfoArchivo.Length);
strmRequest.Close();
FtpWebResponse response = (FtpWebResponse)requestFtp.GetResponse();
response.Close();
}
public void SendFileToFtp(string filePath, string fileName, string keyPathFtp, string username, string password)
{
try
{
FtpParameter ftpParameter = new FtpParameter
{
KeepAlive = false,
UsePassive = false,
FileName = fileName,
FilePath = filePath,
FtpPath = keyPathFtp,
Username = username,
Password = password
};
SendFileToFtp(ftpParameter);
}
catch (Exception ex)
{
throw;
}
}
/// <summary>
/// 從fpt上找到對應的存在文件的名稱，以便忽略大小寫，提供給download方法使用
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
protected string FindMappingFileName(FtpParameter p)
{
string name = ComFunc.FindFileName(p.FTP_URL);
string dir = p.FTP_URL;
if (name.Length > 0)
{
dir = dir.Replace(name, "");
}
string l = ListDirectory(p);
string[] ls = l.Split("\r\n");
Dictionary <string, string> lists = new Dictionary <string, string>();
foreach (StringStd s in ls)
{
lists.Add(s.ToUpper(), s);
}
return(lists[name.ToUpper()] == null ? "" : lists[name.ToUpper()]);
}
/// <summary>
/// list出ftp的目錄
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public string ListDirectory(FtpParameter p)
{
string rtn = "";
try
{
InitByParameters(p);
ftpRequest.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse listResponse =
(FtpWebResponse)ftpRequest.GetResponse();
reader = new StreamReader(listResponse.GetResponseStream(), encoding);
rtn = reader.ReadToEnd();
}
finally
{
Release();
}
return(rtn);
}
//判断文件的目录是否存,不存则创建
private void FtpCheckDirectoryExist(FtpParameter p)
{
string fullDir = FtpParseDirectory(p.FTP_URL);
string[] dirs = fullDir.Split('/');
string curDir = dirs[0] + "//" + dirs[2] + "/";
for (int i = 3; i < dirs.Length; i++)
{
string dir = dirs[i];
//如果是以/开始的路径,第一个为空
if (dir != null && dir.Length > 0)
{
curDir += dir + "/";
var ftpRequest = (FtpWebRequest)WebRequest.Create(curDir);
ftpRequest.Proxy = null;
ftpRequest.Method = WebRequestMethods.Ftp.MakeDirectory;
try
{
if (p.Login_UserId != "")
{
ftpRequest.Credentials = new NetworkCredential(p.Login_UserId, p.Login_Password);
}
FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse();
response.Close();
}
catch (Exception ex)
{
}
finally
{
ftpRequest.Abort();
}
}
}
}
/// <summary>
/// 獲取指定url下所有文件的size
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public Dictionary <string, object> ListFileSize(FtpParameter p)
{
Dictionary <string, object> rtn = new Dictionary <string, object>();
InitByParameters(p);
string listd = ListDirectory(p);
listd = listd.Replace("\r", "");
string[] arraryd = listd.Split('\n');
for (int i = 0; i < arraryd.Length; i++)
{
if (arraryd[i].Length <= 0)
{
continue;
}
string filename = "";
//Unix格式专用
if (arraryd[i].Trim().IndexOf("/") >= 0)
{
string[] ss = arraryd[i].Trim().Split('/');
filename = ss[ss.Length - 1];
}
else
{
filename = arraryd[i].Trim();
}
string fileurl = p.FTP_URL + "/" + filename;
string filesize = FileSize(p);
rtn[arraryd[i]] = filesize;
}
return(rtn);
}
/// <summary>
/// 文件上传
/// </summary>
/// <param name="p"></param>
/// <param name="fileStream"></param>
/// <param name="processsing">上传过程中的处理事件</param>
/// <param name="end">上传完成的处理事件</param>
/// <param name="reserveObject">传入的保留参数对象</param>
public void Upload(FtpParameter p, Stream fileStream, Action <FTPStatusData> processsing, Action <FTPStatusData> end, object reserveObject)
{
try
{
FtpCheckDirectoryExist(p);
InitByParameters(p);
ftpRequest.Method = WebRequestMethods.Ftp.UploadFile;
// UploadFile is not supported through an Http proxy
// so we disable the proxy for this request.
ftpRequest.Proxy = null;
stream = ftpRequest.GetRequestStream();
byte[] buffer = new byte[p.BufferSize];
int bytesRead;
long transfer = 0;
double speed = 0;
var st = DateTime.Now;
var totalbyte = fileStream.Length;
while (true)
{
bytesRead = fileStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
break;
}
stream.Write(buffer, 0, bytesRead);
transfer += bytesRead;
if (processsing != null)
{
var fsd = new FTPStatusData();
fsd.CurrentByteLength = bytesRead;
fsd.TransferedByteLength = transfer;
fsd.TotalByteLength = totalbyte;
fsd.FileName = Path.GetFileName(p.FTP_URL);
fsd.CostTime = DateTime.Now - st;
var s = fsd.CostTime.TotalMilliseconds;
if (s != 0)
{
speed = (double)transfer / s * 1000;
}
fsd.Speed = speed;
fsd.CurrentStatus = FTPStatusData.FtpStaus.Processing;
fsd.ReserveObject = reserveObject;
processsing(fsd);
}
}
// The request stream must be closed before getting
// the response.
stream.Close();
ftpResponse =
(FtpWebResponse)ftpRequest.GetResponse();
if (end != null)
{
var fsd = new FTPStatusData();
fsd.CurrentByteLength = bytesRead;
fsd.TransferedByteLength = transfer;
fsd.TotalByteLength = totalbyte;
fsd.FileName = Path.GetFileName(p.FTP_URL);
fsd.CostTime = DateTime.Now - st;
var s = fsd.CostTime.TotalMilliseconds;
if (s != 0)
{
speed = (double)transfer / s * 1000;
}
fsd.Speed = speed;
fsd.CurrentStatus = FTPStatusData.FtpStaus.End;
fsd.ReserveObject = reserveObject;
end(fsd);
}
}
finally
{
Release();
}
}
/// <summary>
/// 文件上传
/// </summary>
/// <param name="p"></param>
/// <param name="fileStream"></param>
public void Upload(FtpParameter p, Stream fileStream)
{
Upload(p, fileStream, null, null, null);
}
/// <summary>
/// 上傳文件，FTP_URL,Upload_FilePath必須有傳入，否則報異常
/// </summary>
/// <param name="p"></param>
public void Upload(FtpParameter p)
{
Upload(p, null, null, null);
}
/// <summary>
/// 下载文件，返回数据流
/// </summary>
/// <param name="p"></param>
/// <param name="processsing"></param>
/// <param name="end"></param>
/// <param name="reserveObject"></param>
/// <returns></returns>
public MemoryStream DownLoadStream(FtpParameter p, Action <FTPStatusData> processsing, Action <FTPStatusData> end, object reserveObject)
{
try
{
string name = ComFunc.FindFileName(p.FTP_URL);
string dir = p.FTP_URL;
if (name.Length > 0)
{
dir = dir.Replace(name, "");
}
//忽略文件名稱大小寫的處理
//if (name.ToUpper() != name)
//{
// name = FindMappingFileName(p);
//}
InitByParameters(p);
ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
FtpWebResponse downloadResponse =
(FtpWebResponse)ftpRequest.GetResponse();
stream = downloadResponse.GetResponseStream();
string fileName =
Path.GetFileName(ftpRequest.RequestUri.AbsolutePath);
MemoryStream rtn = null;
if (fileName.Length == 0)
{
rtn = new MemoryStream();
}
else
{
//如果有指定文件名称
rtn = new MemoryStream();
byte[] buffer = new byte[p.BufferSize];
int bytesRead;
long transfer = 0;
double speed = 0;
var st = DateTime.Now;
var totalbyte = fileStream.Length;
while (true)
{
bytesRead = stream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
break;
}
rtn.Write(buffer, 0, bytesRead);
transfer += bytesRead;
if (processsing != null)
{
var fsd = new FTPStatusData();
fsd.CurrentByteLength = bytesRead;
fsd.TransferedByteLength = transfer;
fsd.TotalByteLength = totalbyte;
fsd.FileName = Path.GetFileName(name);
fsd.CostTime = DateTime.Now - st;
var s = fsd.CostTime.TotalMilliseconds;
if (s != 0)
{
speed = (double)transfer / s * 1000;
}
fsd.Speed = speed;
fsd.CurrentStatus = FTPStatusData.FtpStaus.Processing;
fsd.ReserveObject = reserveObject;
processsing(fsd);
}
}
if (end != null)
{
var fsd = new FTPStatusData();
fsd.CurrentByteLength = bytesRead;
fsd.TransferedByteLength = transfer;
fsd.TotalByteLength = totalbyte;
fsd.FileName = Path.GetFileName(name);
fsd.CostTime = DateTime.Now - st;
var s = fsd.CostTime.TotalMilliseconds;
if (s != 0)
{
speed = (double)transfer / s * 1000;
}
fsd.Speed = speed;
fsd.CurrentStatus = FTPStatusData.FtpStaus.End;
fsd.ReserveObject = reserveObject;
end(fsd);
}
}
return(rtn);
}
finally
{
Release();
}
}
/// <summary>
/// 下载文件，返回数据流
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public MemoryStream DownLoadStream(FtpParameter p)
{
return(DownLoadStream(p, null, null, null));
}
/// <summary>
/// 下載文件，FTP_URL,DownLoad_Path,DownLoad_FileName必須有傳入，否則報異常
/// 如果发现下载的目录有同名档将删除同名档
/// </summary>
/// <param name="p"></param>
public void DownLoad(FtpParameter p)
{
DownLoad(p, null, null, null);
}
