使用 PowerShell 通过 FTP 上传文件

Question

我想使用 PowerShell 通过 FTP 将文件传输到匿名 FTP 服务器。我不会使用任何额外的软件包。怎么样？

Answer 1

最简单的方法

使用 PowerShell 将二进制文件上传到 FTP 服务器最简单的方法是使用WebClient.UploadFile：

$client = New-Object System.Net.WebClient
$client.Credentials =
    New-Object System.Net.NetworkCredential("username", "password")
$client.UploadFile(
    "ftp://ftp.example.com/remote/path/file.zip", "C:\local\path\file.zip")

---

高级选项

如果您需要更大的控制权，而 WebClient 不提供（如 TLS/SSL encryption 等），请使用 FtpWebRequest。简单的方法是使用Stream.CopyTo 将FileStream 复制到FTP 流：

$request = [Net.WebRequest]::Create("ftp://ftp.example.com/remote/path/file.zip")
$request.Credentials =
    New-Object System.Net.NetworkCredential("username", "password")
$request.Method = [System.Net.WebRequestMethods+Ftp]::UploadFile 

$fileStream = [System.IO.File]::OpenRead("C:\local\path\file.zip")
$ftpStream = $request.GetRequestStream()

$fileStream.CopyTo($ftpStream)

$ftpStream.Dispose()
$fileStream.Dispose()

---

进度监控

如果你需要监控一个上传进度，你必须自己分块复制内容：

$request = [Net.WebRequest]::Create("ftp://ftp.example.com/remote/path/file.zip")
$request.Credentials =
    New-Object System.Net.NetworkCredential("username", "password")
$request.Method = [System.Net.WebRequestMethods+Ftp]::UploadFile 

$fileStream = [System.IO.File]::OpenRead("C:\local\path\file.zip")
$ftpStream = $request.GetRequestStream()

$buffer = New-Object Byte[] 10240
while (($read = $fileStream.Read($buffer, 0, $buffer.Length)) -gt 0)
{
    $ftpStream.Write($buffer, 0, $read)
    $pct = ($fileStream.Position / $fileStream.Length)
    Write-Progress `
        -Activity "Uploading" -Status ("{0:P0} complete:" -f $pct) `
        -PercentComplete ($pct * 100)
}

$ftpStream.Dispose()
$fileStream.Dispose()

---

上传文件夹

如果您想上传文件夹中的所有文件，请参阅
PowerShell Script to upload an entire folder to FTP

Answer 2

我最近为 powershell 编写了几个与 FTP 通信的函数，请参阅https://github.com/AstralisSomnium/PowerShell-No-Library-Just-Functions/blob/master/FTPModule.ps1。下面的第二个功能，您可以将整个本地文件夹发送到 FTP。模块中甚至还有递归删除/添加/读取文件夹和文件的功能。

#Add-FtpFile -ftpFilePath "ftp://myHost.com/folder/somewhere/uploaded.txt" -localFile "C:\temp\file.txt" -userName "User" -password "pw"
function Add-FtpFile($ftpFilePath, $localFile, $username, $password) {
    $ftprequest = New-FtpRequest -sourceUri $ftpFilePath -method ([System.Net.WebRequestMethods+Ftp]::UploadFile) -username $username -password $password
    Write-Host "$($ftpRequest.Method) for '$($ftpRequest.RequestUri)' complete'"
    $content = $content = [System.IO.File]::ReadAllBytes($localFile)
    $ftprequest.ContentLength = $content.Length
    $requestStream = $ftprequest.GetRequestStream()
    $requestStream.Write($content, 0, $content.Length)
    $requestStream.Close()
    $requestStream.Dispose()
}

#Add-FtpFolderWithFiles -sourceFolder "C:\temp\" -destinationFolder "ftp://myHost.com/folder/somewhere/" -userName "User" -password "pw"
function Add-FtpFolderWithFiles($sourceFolder, $destinationFolder, $userName, $password) {
    Add-FtpDirectory $destinationFolder $userName $password
    $files = Get-ChildItem $sourceFolder -File
    foreach($file in $files) {
        $uploadUrl ="$destinationFolder/$($file.Name)"
        Add-FtpFile -ftpFilePath $uploadUrl -localFile $file.FullName -username $userName -password $password
    }
}

#Add-FtpFolderWithFilesRecursive -sourceFolder "C:\temp\" -destinationFolder "ftp://myHost.com/folder/" -userName "User" -password "pw"
function Add-FtpFolderWithFilesRecursive($sourceFolder, $destinationFolder, $userName, $password) {
    Add-FtpFolderWithFiles -sourceFolder $sourceFolder -destinationFolder $destinationFolder -userName $userName -password $password
    $subDirectories = Get-ChildItem $sourceFolder -Directory
    $fromUri = new-object System.Uri($sourceFolder)
    foreach($subDirectory in $subDirectories) {
        $toUri  = new-object System.Uri($subDirectory.FullName)
        $relativeUrl = $fromUri.MakeRelativeUri($toUri)
        $relativePath = [System.Uri]::UnescapeDataString($relativeUrl.ToString())
        $lastFolder = $relativePath.Substring($relativePath.LastIndexOf("/")+1)
        Add-FtpFolderWithFilesRecursive -sourceFolder $subDirectory.FullName -destinationFolder "$destinationFolder/$lastFolder" -userName $userName -password $password
    }
}

Answer 3

你可以使用这个功能：

function SendByFTP {
    param (
        $userFTP = "anonymous",
        $passFTP = "anonymous",
        [Parameter(Mandatory=$True)]$serverFTP,
        [Parameter(Mandatory=$True)]$localFile,
        [Parameter(Mandatory=$True)]$remotePath
    )
    if(Test-Path $localFile){
        $remoteFile = $localFile.Split("\")[-1]
        $remotePath = Join-Path -Path $remotePath -ChildPath $remoteFile
        $ftpAddr = "ftp://${userFTP}:${passFTP}@${serverFTP}/$remotePath"
        $browser = New-Object System.Net.WebClient
        $url = New-Object System.Uri($ftpAddr)
        $browser.UploadFile($url, $localFile)    
    }
    else{
        Return "Unable to find $localFile"
    }
}

这个函数通过FTP发送指定的文件。 您必须使用这些参数调用该函数：

• userFTP = 默认为“匿名”或您的用户名
• passFTP = "anonymous" 默认或您的密码
• serverFTP = FTP 服务器的 IP 地址
• localFile = 要发送的文件
• remotePath = FTP 服务器上的路径

例如：

SendByFTP -userFTP "USERNAME" -passFTP "PASSWORD" -serverFTP "MYSERVER" -localFile "toto.zip" -remotePath "path/on/the/FTP/"

Answer 4

Goyuix's solution 效果很好，但它给了我这个错误：“使用 HTTP 代理时不支持请求的 FTP 命令。”

在$ftp.UsePassive = $true 之后添加这一行为我解决了这个问题：

$ftp.Proxy = $null;

Answer 5

这是我的超酷版本，因为它有一个进度条:-)

这是一个完全没用的功能，我知道，但它看起来仍然很酷 \m/ \m/

$webclient = New-Object System.Net.WebClient
Register-ObjectEvent -InputObject $webclient -EventName "UploadProgressChanged" -Action { Write-Progress -Activity "Upload progress..." -Status "Uploading" -PercentComplete $EventArgs.ProgressPercentage } > $null

$File = "filename.zip"
$ftp = "ftp://user:password@server/filename.zip"
$uri = New-Object System.Uri($ftp)
try{
    $webclient.UploadFileAsync($uri, $File)
}
catch  [Net.WebException]
{
    Write-Host $_.Exception.ToString() -foregroundcolor red
}
while ($webclient.IsBusy) { continue }

PS。当我想知道“它是否停止工作，或者只是我的慢速 ASDL 连接？”时，很有帮助？

Answer 6

您可以像这样简单地通过 PowerShell 处理文件上传。 完整的项目可以在 Github 上找到 https://github.com/edouardkombo/PowerShellFtp

#Directory where to find pictures to upload
$Dir= 'c:\fff\medias\'

#Directory where to save uploaded pictures
$saveDir = 'c:\fff\save\'

#ftp server params
$ftp = 'ftp://10.0.1.11:21/'
$user = 'user'
$pass = 'pass'

#Connect to ftp webclient
$webclient = New-Object System.Net.WebClient 
$webclient.Credentials = New-Object System.Net.NetworkCredential($user,$pass)  

#Initialize var for infinite loop
$i=0

#Infinite loop
while($i -eq 0){ 

    #Pause 1 seconde before continue
    Start-Sleep -sec 1

    #Search for pictures in directory
    foreach($item in (dir $Dir "*.jpg"))
    {
        #Set default network status to 1
        $onNetwork = "1"

        #Get picture creation dateTime...
        $pictureDateTime = (Get-ChildItem $item.fullName).CreationTime

        #Convert dateTime to timeStamp
        $pictureTimeStamp = (Get-Date $pictureDateTime).ToFileTime()

        #Get actual timeStamp
        $timeStamp = (Get-Date).ToFileTime() 

        #Get picture lifeTime
        $pictureLifeTime = $timeStamp - $pictureTimeStamp

        #We only treat pictures that are fully written on the disk
        #So, we put a 2 second delay to ensure even big pictures have been fully wirtten   in the disk
        if($pictureLifeTime -gt "2") {    

            #If upload fails, we set network status at 0
            try{

                $uri = New-Object System.Uri($ftp+$item.Name)

                $webclient.UploadFile($uri, $item.FullName)

            } catch [Exception] {

                $onNetwork = "0"
                write-host $_.Exception.Message;
            }

            #If upload succeeded, we do further actions
            if($onNetwork -eq "1"){
                "Copying $item..."
                Copy-Item -path $item.fullName -destination $saveDir$item 

                "Deleting $item..."
                Remove-Item $item.fullName
            }


        }  
    }
}   

Answer 7

还有其他一些方法。我使用了以下脚本：

$File = "D:\Dev\somefilename.zip";
$ftp = "ftp://username:password@example.com/pub/incoming/somefilename.zip";

Write-Host -Object "ftp url: $ftp";

$webclient = New-Object -TypeName System.Net.WebClient;
$uri = New-Object -TypeName System.Uri -ArgumentList $ftp;

Write-Host -Object "Uploading $File...";

$webclient.UploadFile($uri, $File);

您可以使用以下命令针对 windows FTP 命令行实用程序运行脚本

ftp -s:script.txt 

（查看this article）

关于 SO 的以下问题也回答了这个问题：How to script FTP upload and download?

Answer 8

我不确定您能否 100% 防止脚本不挂起或崩溃，因为有些事情超出了您的控制范围（如果服务器在上传过程中断电怎么办？） - 但这应该为获取你开始了：

# create the FtpWebRequest and configure it
$ftp = [System.Net.FtpWebRequest]::Create("ftp://localhost/me.png")
$ftp = [System.Net.FtpWebRequest]$ftp
$ftp.Method = [System.Net.WebRequestMethods+Ftp]::UploadFile
$ftp.Credentials = new-object System.Net.NetworkCredential("anonymous","anonymous@localhost")
$ftp.UseBinary = $true
$ftp.UsePassive = $true
# read in the file to upload as a byte array
$content = [System.IO.File]::ReadAllBytes("C:\me.png")
$ftp.ContentLength = $content.Length
# get the request stream, and write the bytes into it
$rs = $ftp.GetRequestStream()
$rs.Write($content, 0, $content.Length)
# be sure to clean up after ourselves
$rs.Close()
$rs.Dispose()

Answer 9

我不会声称这比投票率最高的解决方案更优雅......但这很酷（至少在我看来，LOL）以自己的方式：

$server = "ftp.lolcats.com"
$filelist = "file1.txt file2.txt"   

"open $server
user $user $password
binary  
cd $dir     
" +
($filelist.split(' ') | %{ "put ""$_""`n" }) | ftp -i -in

如您所见，它使用了极简的内置 Windows FTP 客户端。也更短更直接。是的，我已经实际使用过它并且它有效！