public static bool DownloadFile(HttpRequest _Request, HttpResponse _Response, string _fullPath, long _speed)
{
string fileName = DirFile.GetFileName(false, _fullPath);
try
{
FileStream fileStream = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader binaryReader = new BinaryReader((Stream)fileStream);
try
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer = false;
long length = fileStream.Length;
long offset = 0;
double num1 = 10240.0;
int millisecondsTimeout = (int)Math.Floor(1000.0 * num1 / (double)_speed) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
offset = Convert.ToInt64(_Request.Headers["Range"].Split(new char[2]
{
'=',
'-'
})[1]);
}
_Response.AddHeader("Content-Length", (length - offset).ToString());
_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
_Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName, Encoding.UTF8));
binaryReader.BaseStream.Seek(offset, SeekOrigin.Begin);
int num2 = (int)Math.Floor((double)(length - offset) / num1) + 1;
for (int index = 0; index < num2; ++index)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(binaryReader.ReadBytes(int.Parse(num1.ToString())));
Thread.Sleep(millisecondsTimeout);
}
else
{
index = num2;
}
}
}
catch
{
return(false);
}
finally
{
binaryReader.Close();
fileStream.Close();
}
}
catch
{
return(false);
}
return(true);
}
public static string GetFileName(string filePath)
{
return(DirFile.GetFileName(false, filePath));
}
