Resume FTP file copy

This topic contains 2 replies, has 2 voices, and was last updated by  Paul Fallows 8 months, 2 weeks ago.

  • Author
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  • #61090

    Paul Fallows
    Participant

    Hi

    I have been having problems downloading a file from a FTP site – it keeps on timing out. I am currently trying the following code:

    $downloadRequest = [Net.WebRequest]::Create($fileUrl)
    $downloadRequest.Method = [System.Net.WebRequestMethods+FTP]::DownloadFile
    $downloadRequest.Credentials = $credentials

    $downloadResponse = $downloadRequest.GetResponse()
    $sourceStream = $downloadResponse.GetResponseStream()
    $targetStream = [System.IO.File]::Create($localFilePath)
    $buffer = New-Object byte[] 10240
    while (($read = $sourceStream.Read($buffer, 0, $buffer.Length)) -gt 0)
    {
    $targetStream.Write($buffer, 0, $read);
    $sourceStream
    $targetStream

    }
    $targetStream.Dispose()
    $sourceStream.Dispose()
    $downloadResponse.Dispose()

    I have changed both Timeout and ReadWriteTimeout values but this made no difference. Possibly a setting on the source server?

    Anyway – is there a way to resume the download once it has timed out?

    Thanks
    Paul

  • #61237

    Don Jones
    Keymaster

    Not using that class, no. I'd –strongly– suggest you look at BITS, the Background Intelligent Transfer Service, and its associated PowerShell cmdlets. It's designed for this specific purpose.

  • #61363

    Paul Fallows
    Participant

    Thanks – will look at this.

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