Unduh file dengan PowerShell di Server Nano?

Saya mengalami beberapa kesulitan besar dalam mencari tahu cara mengunduh file dengan PowerShell di bawah Nano Server.

Tantangannya adalah sebagai berikut:

• Tidak ada Invoke-WebRequest

• Tidak ada System.Net.WebClient

• Tidak ada Start-BitsTransfer

• Tidak ada bitadmin

Adakah yang tahu bagaimana melakukan tugas ini (tampaknya sederhana)?

Ada contoh di sini untuk mengunduh file zip menggunakan PowerShell di Nano, Anda mungkin harus memodifikasinya sedikit untuk keperluan Anda;

(dari sini: https://docs.asp.net/en/latest/tutorials/nano-server.html#installing-the-asp-net-core-module-ancm )

$SourcePath = "https://dotnetcli.blob.core.windows.net/dotnet/beta/Binaries/Latest/dotnet-win-x64.latest.zip"
$DestinationPath = "C:\dotnet"

$EditionId = (Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name 'EditionID').EditionId

if (($EditionId -eq "ServerStandardNano") -or
    ($EditionId -eq "ServerDataCenterNano") -or
    ($EditionId -eq "NanoServer") -or
    ($EditionId -eq "ServerTuva")) {

    $TempPath = [System.IO.Path]::GetTempFileName()
    if (($SourcePath -as [System.URI]).AbsoluteURI -ne $null)
    {
        $handler = New-Object System.Net.Http.HttpClientHandler
        $client = New-Object System.Net.Http.HttpClient($handler)
        $client.Timeout = New-Object System.TimeSpan(0, 30, 0)
        $cancelTokenSource = [System.Threading.CancellationTokenSource]::new()
        $responseMsg = $client.GetAsync([System.Uri]::new($SourcePath), $cancelTokenSource.Token)
        $responseMsg.Wait()
        if (!$responseMsg.IsCanceled)
        {
            $response = $responseMsg.Result
            if ($response.IsSuccessStatusCode)
            {
                $downloadedFileStream = [System.IO.FileStream]::new($TempPath, [System.IO.FileMode]::Create, [System.IO.FileAccess]::Write)
                $copyStreamOp = $response.Content.CopyToAsync($downloadedFileStream)
                $copyStreamOp.Wait()
                $downloadedFileStream.Close()
                if ($copyStreamOp.Exception -ne $null)
                {
                    throw $copyStreamOp.Exception
                }
            }
        }
    }
    else
    {
        throw "Cannot copy from $SourcePath"
    }
    [System.IO.Compression.ZipFile]::ExtractToDirectory($TempPath, $DestinationPath)
    Remove-Item $TempPath
}

Invoke-WebRequesttelah ditambahkan ke nanoserver sebagai bagian dari Pembaruan Kumulatif 26 September 2016 untuk Windows Server 2016 .

Sangat gila bahwa OS server yang dirancang untuk menggerakkan beban kerja cloud tidak memiliki metode nyaman yang dibangun untuk permintaan REST / Web sederhana: O

Bagaimanapun, Anda dapat mencoba skrip powershell ini wget.ps1 yang merupakan modifikasi dari Microsoft. Copy-paste di sini untuk kenyamanan

<#
.SYNOPSIS
    Downloads a file
.DESCRIPTION
    Downloads a file
.PARAMETER Url
    URL to file/resource to download
.PARAMETER Filename
    file to save it as locally
.EXAMPLE
    C:\PS> .\wget.ps1 https://dist.nuget.org/win-x86-commandline/latest/nuget.exe
#>

Param(
  [Parameter(Position=0,mandatory=$true)]
  [string]$Url,
  [string]$Filename = ''
)

# Get filename
if (!$Filename) {
    $Filename = [System.IO.Path]::GetFileName($Url)    
}

Write-Host "Download: $Url to $Filename"

# Make absolute local path
if (![System.IO.Path]::IsPathRooted($Filename)) {
    $FilePath = Join-Path (Get-Item -Path ".\" -Verbose).FullName $Filename
}

if (($Url -as [System.URI]).AbsoluteURI -ne $null)
{
    # Download the bits
    $handler = New-Object System.Net.Http.HttpClientHandler
    $client = New-Object System.Net.Http.HttpClient($handler)
    $client.Timeout = New-Object System.TimeSpan(0, 30, 0)
    $cancelTokenSource = [System.Threading.CancellationTokenSource]::new()
    $responseMsg = $client.GetAsync([System.Uri]::new($Url), $cancelTokenSource.Token)
    $responseMsg.Wait()
    if (!$responseMsg.IsCanceled)
    {
        $response = $responseMsg.Result
        if ($response.IsSuccessStatusCode)
        {
            $downloadedFileStream = [System.IO.FileStream]::new($FilePath, [System.IO.FileMode]::Create, [System.IO.FileAccess]::Write)

            $copyStreamOp = $response.Content.CopyToAsync($downloadedFileStream)
            # TODO: Progress bar? Total size?
            Write-Host "Downloading ..."
            $copyStreamOp.Wait()

            $downloadedFileStream.Close()
            if ($copyStreamOp.Exception -ne $null)
            {
                throw $copyStreamOp.Exception
            }
        }
    }
}
else
{
    throw "Cannot download from $Url"
}