public static void DownLoadAbsoluteFile(Stream stream, string path, RateDelegate rateCallBack = null)
{
long fileLength = 0;
if (rateCallBack != null)
{
var request = (FtpWebRequest)WebRequest.Create(path);
request.Method = WebRequestMethods.Ftp.GetFileSize;
request.UseBinary = true;
using (var ftpWebResponse = (FtpWebResponse)request.GetResponse()) {
fileLength = ftpWebResponse.ContentLength;
}
}
var ftpWebRequest = (FtpWebRequest)WebRequest.Create(path);
ftpWebRequest.Method = WebRequestMethods.Ftp.DownloadFile;
ftpWebRequest.UseBinary = true;
ftpWebRequest.UsePassive = false;
using (var response = (FtpWebResponse)ftpWebRequest.GetResponse()) {
using (var responseStream = response.GetResponseStream()) {
var buffer = new byte[BufferSize];
int read;
long position = 0;
do
{
read = responseStream.Read(buffer, 0, buffer.Length);
position += read;
rateCallBack?.Invoke(position, fileLength);
stream.Write(buffer, 0, read);
} while (read != 0);
}
}
}
/// <summary>
/// 上传内存流
/// </summary>
/// <param name="path"></param>
/// <param name="stream"></param>
/// <param name="length"></param>
/// <param name="rateCallback"></param>
public static void UploadStreamAbsolute(string path, Stream stream, long length = 0,
RateDelegate rateCallback = null)
{
var request = (FtpWebRequest)WebRequest.Create(path);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = true;
request.UsePassive = true;
request.ContentLength = stream.Length;
var content = new byte[BufferSize - 1 + 1];
stream.Position = 0;
try {
using (var requestStream = request.GetRequestStream())
{
long position = 0;
int dataRead;
do
{
dataRead = stream.Read(content, 0, BufferSize);
position += dataRead;
rateCallback?.Invoke(position, length);
requestStream.Write(content, 0, dataRead);
} while (!(dataRead < BufferSize));
}
}
catch (Exception) {
DeleteAbsoluteFile(path);
throw;
}
}