/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="filedownloadname"></param>
/// <param name="dir"></param>
/// <returns></returns>
public string FtpStream(HttpContext context, string filedownloadname, string dir)
{
string stream = string.Empty;
FtpConnection ftp = this.FtpConn();
ftp.SetCurrentDirectory(dir);
//ftp.
try
{
if (ftp.FileExist(filedownloadname))
{
FtpStream ftpfs = ftp.OpenFile(filedownloadname, GenericRights.Read);
stream = "<";
StreamReader reader = new StreamReader(ftpfs);
while (reader.Read() > 0)
{
stream += reader.ReadToEnd();
}
}
else
{
context.Response.Write("<script>alert('file does not exist!');</script>");
}
}
finally
{
ftp.Close();
}
return(stream);
}
/* Download File */
public void Download(string localFile, string remoteFile)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + remoteFile);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Get the FTP Server's Response Stream */
StartDownloadData(localFile, remoteFile, InterlocutorAddress);
FtpStream = FtpResponse.GetResponseStream();
/* Open a File Stream to Write the Downloaded File */
FileStream localFileStream = new FileStream(localFile, FileMode.Create);
/* Buffer for the Downloaded Data */
byte[] byteBuffer = new byte[BufferSize];
int bytesRead = FtpStream.Read(byteBuffer, 0, BufferSize);
/* Download the File by Writing the Buffered Data Until the Transfer is Complete */
try
{
while (bytesRead > 0)
{
localFileStream.Write(byteBuffer, 0, bytesRead);
bytesRead = FtpStream.Read(byteBuffer, 0, BufferSize);
}
}
finally
{ /* Resource Cleanup */
localFileStream.Close();
EndDownloadData(localFile, remoteFile, InterlocutorAddress);
}
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
/* Get the Size of a File */
public string GetFileSize(string fileName)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + fileName);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.GetFileSize;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Establish Return Communication with the FTP Server */
FtpStream = FtpResponse.GetResponseStream();
/* Get the FTP Server's Response Stream */
StreamReader ftpReader = new StreamReader(FtpStream);
/* Store the Raw Response */
string fileInfo = null;
/* Read the Full Response Stream */
try { while (ftpReader.Peek() != -1)
{
fileInfo = ftpReader.ReadToEnd();
}
}
finally
{
/* Resource Cleanup */
ftpReader.Close();
}
/* Return File Size */
return(fileInfo);
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
/* List Directory Contents in Detail (Name, Size, Created, etc.) */
public string[] DirectoryListDetailed(string directory)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + directory);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Establish Return Communication with the FTP Server */
FtpStream = FtpResponse.GetResponseStream();
/* Get the FTP Server's Response Stream */
StreamReader ftpReader = new StreamReader(FtpStream);
/* Store the Raw Response */
string directoryRaw = null;
/* Read Each Line of the Response and Append a Pipe to Each Line for Easy Parsing */
try { while (ftpReader.Peek() != -1)
{
directoryRaw += ftpReader.ReadLine() + "|";
}
}
finally
{ /* Resource Cleanup */
ftpReader.Close();
}
/* Return the Directory Listing as a string Array by Parsing 'directoryRaw' with the Delimiter you Append (I use | in This Example) */
return(directoryRaw.Split("|".ToCharArray()));
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
public System.IO.Stream ReadFile(FileOrDirectory src)
{
FtpClient ftp = null;
Task task = null;
try {
ftp = FtpConnections.Open(IsSource, ref url);
if (ftp.FileTransferType != TransferType.Binary) ftp.FileTransferType = TransferType.Binary;
var file = new FtpStream();
file.Client = ftp;
file.Path = Url.Path() + "/" + src.Name;
file.Size = src.Size;
file.File = src;
file.Log = Log;
if (!UseFXP) {
task = Services.Tasks.Do(() => {
using (file) {
try {
if (TransferProgress) {
progress[file.Client] = new ProgressData { ElapsedTime = new TimeSpan(0), Path = file.Path, Size = file.Size };
file.Client.TransferProgress += ShowProgress;
}
file.Start = DateTime.Now;
ftp.GetFile(file.File.Name, file, false);
} catch (Exception ex) {
file.Exception(ex);
Sync.Failure(file.File, ex, file.Client);
} finally {
if (TransferProgress) {
file.Client.TransferProgress -= ShowProgress;
progress.Remove(file.Client);
}
}
}
});
}
return file;
} catch (Exception e) {
Sync.Failure(src, e, ftp);
} finally {
if (task == null && ftp != null) FtpConnections.Pass(ftp);
}
return null;
}
/// <summary>
/// 通过Ftp拷贝外网的文件
/// </summary>
/// <param name="Psa_attachname">文件的名称</param>
/// <param name="Psa_file_Size">文件的字节数</param>
/// <param name="AttachPath">存放文件的路径[~/AffAirDirInfo/20080202/082600043/]~为服务器的物理路径</param>
/// <param name="oYearDim"></param>
/// <returns>拷贝文件是否成功</returns>
public bool CopyFile(string Psa_attachname, int Psa_file_Size, string AttachPath, string oYearDim)
{
bool isPass = false;
if (Psa_attachname == string.Empty || Psa_file_Size < 0)
{
return(false);
}
try
{
using (FtpConnection ftp = this.FtpConn())
{
byte[] bytes = new byte[Psa_file_Size];
//string oProcEventAttachPath = GetProcEventAttachPath();
string oProcEventAttachPath = oYearDim + "/";
string fileUrl = oProcEventAttachPath + Psa_attachname;
//ftp.SetCurrentDirectory("/");
if (ftp.FileExist(fileUrl))
{
try
{
//ftp.SetCurrentDirectory(oProcEventAttachPath);
FtpStream ftpfs = ftp.OpenFile(fileUrl, GenericRights.Read);
//FtpStream ftpfs=ftp.OpenFile(Psa_attachname,GenericRights.Read);
Stream oRtream = (Stream)ftpfs;
FileStream fs = new FileStream(AttachPath + Psa_attachname, FileMode.Create, FileAccess.Write);
//int index = oRtream.Read(bytes,0,Psa_file_Size);
int count = oRtream.Read(bytes, 0, 10240);
// HttpWebRequest webRequest = (HttpWebRequest) WebRequest.Create("http://211.144.95.130/pdhb.synadminweb/AffAirDirInfo/"+fileUrl);
// HttpWebResponse webResponse = (HttpWebResponse) webRequest.GetResponse();
// Stream oRtream = webResponse.GetResponseStream();
// //int index = oRtream.Read(bytes,0,Psa_file_Size);
// FileStream fs = new FileStream(AttachPath + Psa_attachname, FileMode.Create, FileAccess.Write);
// int count = oRtream.Read( bytes, 0, 1024 );
fs.Write(bytes, 0, count);
while (count > 0)
{
// Dump the 256 characters on a string and display the string onto the console.
count = oRtream.Read(bytes, 0, 10240);
fs.Write(bytes, 0, count);
}
oRtream.Close();
// webResponse.Close();
fs.Flush();
fs.Close();
isPass = true;
}
catch (Exception ex)
{
throw new Exception("FTP读取文件失败原因:" + ex.Message);
}
}
// else
// {
// throw new Exception("文件不存在!");
// }
}
}
catch (Exception ex)
{
throw new Exception("保存文件信息失败!请查看Ftp连接是否成功！原因：" + ex.Message, ex);
}
finally
{
ftp.Close();
}
return(isPass);
}
private void SafeRelease(ref FtpStream obj)
{
if (obj != null)
{
try { obj.Close(); }
catch { }
obj = null;
}
}
