private bool DownloadSingleFileFTP(ItemInfo file, String dstDir)
{
bool isSuccess = true;
Byte[] readBytes = new Byte[PacketSize];
// create destination directory if not exits
String dir = Path.GetDirectoryName(Path.Combine(dstDir, file.FullPath));
if (!Directory.Exists(dir) || !string.IsNullOrEmpty(dir))
{
Directory.CreateDirectory(dir);
}
FtpWebRequest webReq;
FtpWebResponse webResp = null;
try
{
webReq = (FtpWebRequest)WebRequest.Create(file.DownloadUrl);
webReq.Credentials = updater.GetCredential();
webReq.KeepAlive = false;
webReq.UsePassive = true;
webReq.Method = updater.IsFtp ? WebRequestMethods.Ftp.DownloadFile : WebRequestMethods.Http.Get;
webReq.Credentials = updater.GetCredential();
webResp = (FtpWebResponse)webReq.GetResponse();
downloadui.SetDownloadingFileName(file.FileName);
using (FileStream writer = new FileStream(Path.Combine(dir, file.FileName), FileMode.Create))
{
int currentFileProgress = 0;
while (currentFileProgress < file.FileSize && !downloadWorker.CancellationPending)
{
// while (this.IsPaused) { System.Threading.Thread.Sleep(50); }
var responseStream = webResp.GetResponseStream();
if (responseStream != null)
{
Int32 currentPacketSize = responseStream
.Read(readBytes, 0, PacketSize);
currentFileProgress += currentPacketSize;
TotalProgress += currentPacketSize;
double percent = (TotalProgress / (updater.TotalFileSize * 1.0)) * 100;
downloadWorker.ReportProgress((int)percent);
writer.Write(readBytes, 0, currentPacketSize);
}
}
writer.Flush();
writer.Close();
}
webResp.Close();
}
catch (Exception ex)
{
isSuccess = false;
Log.Error(ex.Message);
Log.Debug(ex.StackTrace);
}
return isSuccess;
}
private ItemInfo GetItemInfoDetail(String url, ItemInfo it)
{
WebRequest request = WebRequest.Create(url);
request.Method = (this.Server.Scheme.StartsWith("FTP",StringComparison.InvariantCultureIgnoreCase))
? WebRequestMethods.Ftp.GetFileSize : WebRequestMethods.Http.Head;
request.Credentials = new NetworkCredential(this.Username, this.Password);
ItemInfo item = new ItemInfo();
try
{
using (WebResponse response = request.GetResponse())
{
item.FileSize = response.ContentLength;
item.ContentType = response.ContentType;
}
}
catch (WebException ex) { }
catch (Exception ex) { }
item.DownloadUrl = request.RequestUri.ToString();
item.FullPath = it.FileName;
item.FileName = Path.GetFileName(it.FileName);
return item;
}