public async Task DownLoadFileAsync(FtpTransferResult ftpResult,
CancellationTokenSource cancelltionTokenSource)
{
byte[] buffer = new byte[BUFFER_LENGTH];
FtpWebRequest request = FtpWebRequest.Create("ftp://" +
this.Ftp.Host + ":" + this.Ftp.Port + ftpResult.Info) as FtpWebRequest;
request.Credentials = new NetworkCredential(this.Ftp.UserName, this.Ftp.Password);
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.Timeout = 10000;
request.ReadWriteTimeout = 10000;
using (var response = await request.GetResponseAsync() as FtpWebResponse)
using (var stream = response.GetResponseStream())
using (var filestream = new FileStream(ftpResult.Target, FileMode.CreateNew, FileAccess.Write, FileShare.None))
{
int readed = 0;
while ((readed = await stream.ReadAsync(buffer, 0, BUFFER_LENGTH)) > 0)
{
if (cancelltionTokenSource.IsCancellationRequested)
{
break;
}
await filestream.WriteAsync(buffer, 0, readed);
ftpResult.Position += readed;
ftpResult.Process = (double)ftpResult.Position / ftpResult.TotalLength * 100;
}
await filestream.FlushAsync();
}
}
private async Task UpLoadFile(FtpFile selected)
{
FtpTransferResult result = new FtpTransferResult();
result.ResultType = FtpResultType.Uploading;
result.Info = this._localPath + selected.Name;
result.Target = this._remotePath + selected.Name;
result.TotalLength = selected.ByteSize;
result.Time = DateTime.Now;
result.Process = 0;
result.Position = 0;
this._ftpResults.Add(result);
this._queuedMissions.Add(result);
try
{
await this.FtpService.UpLoadFileAsync(result);
this._ftpResults.Add(new FtpTransferResult
{
ResultType = FtpResultType.Uploaded,
Info = result.Info,
Target = result.Target,
Process = 100,
Time = DateTime.Now
});
this._remoteValue.Clear();
this._queuedMissions.Remove(result);
await this.ListRemoteFiles();
}
catch (Exception)
{
this._queuedMissions.Remove(result);
throw;
}
}
private async Task ResumeDownLoadFile(FtpTransferResult resume)
{
this._ftpResults.Add(resume);
this._queuedMissions.Add(resume);
await this.FtpService.ResumeDownLoadFileAsync(resume, this._cancelTokanSource);
this._ftpResults.Add(new FtpTransferResult
{
ResultType = FtpResultType.Downloaded,
Info = resume.Info,
Target = resume.Target,
Process = 100,
Time = DateTime.Now
});
this._queuedMissions.Remove(resume);
}
private async Task DownLoadFile(FtpFile selected)
{
FtpTransferResult result = new FtpTransferResult();
result.ResultType = FtpResultType.Downloading;
result.Info = this._remotePath + selected.Name;
result.Target = this._localPath + selected.Name;
result.TotalLength = selected.ByteSize;
result.Time = DateTime.Now;
result.Position = 0;
result.Process = (double)result.Position / result.TotalLength * 100;
this._ftpResults.Add(result);
this._queuedMissions.Add(result);
try
{
await this.FtpService.DownLoadFileAsync(result, this._cancelTokanSource);
this._ftpResults.Add(new FtpTransferResult
{
ResultType = FtpResultType.Downloaded,
Info = result.Info,
Target = result.Target,
Process = 100,
Time = DateTime.Now
});
this._localValue.Clear();
this._queuedMissions.Remove(result);
await this.ListLocalFiles();
}
catch (Exception)
{
this._unCompletedMissions.Add(result);
this._queuedMissions.Remove(result);
File.Delete(result.Target);
throw;
}
}
public async Task UpLoadFileAsync(FtpTransferResult ftpResult)
{
byte[] buffer = new byte[BUFFER_LENGTH];
FtpWebRequest request = FtpWebRequest.Create("ftp://" +
this.Ftp.Host + ":" + this.Ftp.Port + ftpResult.Target) as FtpWebRequest;
request.Credentials = new NetworkCredential(this.Ftp.UserName, this.Ftp.Password);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Timeout = 10000;
request.ReadWriteTimeout = 10000;
using (var stream = await request.GetRequestStreamAsync())
using (var filestream = new FileStream(ftpResult.Info, FileMode.Open, FileAccess.Read, FileShare.Read))
{
int readed = 0;
while ((readed = await filestream.ReadAsync(buffer, 0, BUFFER_LENGTH)) > 0)
{
await stream.WriteAsync(buffer, 0, readed);
ftpResult.Position += readed;
ftpResult.Process = (double)ftpResult.Position / ftpResult.TotalLength * 100;
}
await stream.FlushAsync();
}
}
