使用PowerShell从SharePoint Online下载文件

我需要使用powershell从sharepoint在线文档库下载文件

我已经设法达到了应该下载的程度，但是运气不好

我知道这与我如何使用流/编写器有关

如有任何提示，将不胜感激

*编辑 不会抛出任何错误消息，只会在我的本地目录中抛出0个长度的文件

$SPClient =  [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
$SPRuntime = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")

$webUrl =  Read-Host -Prompt "HTTPS URL for your SP Online 2013 site" 
$username = Read-Host -Prompt "Email address for logging into that site" 
$password = Read-Host -Prompt "Password for $username" -AsSecureString
$folder = "PoSHTest" 
$destination = "C:\\test"

$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($webUrl) 
$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $password)
$web = $ctx.Web
$lists = $web.Lists.GetByTitle($folder)
$query = [Microsoft.SharePoint.Client.CamlQuery]::CreateAllItemsQuery(10000) 
$result = $lists.GetItems($query)
$ctx.Load($Lists)
$ctx.Load($result)
$ctx.ExecuteQuery()

#Edited the foreach as per @JNK
foreach ($File in $result) {
         Write-host "Url: $($File["FileRef"]), title: $($File["FileLeafRef"]) "
        $binary = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx,$File["FileRef"])
        $Action = [System.IO.FileMode]::Create 
        $new = $destination + "\\" + $File["FileLeafRef"]
        $stream = New-Object System.IO.FileStream $new, $Action 
        $writer = New-Object System.IO.BinaryWriter($stream)
        $writer.write($binary)
        $writer.Close()

---

}

虽然上面的CSOM代码可能可以正常工作，但我发现使用web客户端方法更容易

（来自）

我使用了下面的代码，将一组文件（CSOM查询中的元数据）检索到一个文件夹（使用$result集合，其他参数应该稍微调整一下）：

这里的诀窍是 $client.UseDefaultCredentials=$true

---

这将为您（作为当前用户）验证webclient。

因此我放弃了这一点。事实证明，编写SSIS脚本组件来完成这项工作要容易得多。 我已经奖励了Soeren，因为他发布了一些代码，这些代码将适用于常规网站，但不会覆盖SharePoint Online

---

谢谢你，索林

我使用以下相关代码片段成功下载了该文件。你应该能够根据自己的情况扩展它

Add-Type –Path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type –Path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
$siteUrl = Read-Host -Prompt "Enter web URL"
$username = Read-Host -Prompt "Enter your username"
$password = Read-Host -Prompt "Enter password" -AsSecureString
$source = "/filepath/sourcefilename.dat" #server relative URL here
$target = "C:/detinationfilename.dat" #URI of the file locally stored

$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($siteUrl)
$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $password)
$ctx.Credentials = $credentials

[Microsoft.SharePoint.Client.FileInformation] $fileInfo = [Microsoft.SharePoint.Client.File]::OpenBinaryDirect($ctx,$source);
[System.IO.FileStream] $writeStream = [System.IO.File]::Open($target,[System.IO.FileMode]::Create);

$fileInfo.Stream.CopyTo($writeStream);
$writeStream.Close();

您还可以通过提供从SharePoint Online下载资源，如下所示

先决条件 必须安装在运行脚本的计算机上

如何在PowerShell中的SharePoint Online/O365中下载文件

下载文件.ps1

功能：

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")


 Function Download-File([string]$UserName, [string]$Password,[string]$FileUrl,[string]$DownloadPath)
 {
    if([string]::IsNullOrEmpty($Password)) {
      $SecurePassword = Read-Host -Prompt "Enter the password" -AsSecureString 
    }
    else {
      $SecurePassword = $Password | ConvertTo-SecureString -AsPlainText -Force
    }
    $fileName = [System.IO.Path]::GetFileName($FileUrl)
    $downloadFilePath = [System.IO.Path]::Combine($DownloadPath,$fileName)


    $client = New-Object System.Net.WebClient 
    $client.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $SecurePassword)
    $client.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f")
    $client.DownloadFile($FileUrl, $downloadFilePath)
    $client.Dispose()
}

用法

---

对于这个问题，最直接、最简短的回答是：

$url = 'https://the.server/path/to/the/file.txt'
$outfile = "$env:userprofile\file.txt"
Invoke-WebRequest -Uri $url -OutFile $outfile -Credential (Get-Credential)

---

这至少在Powershell 5.1中有效…

简而言之，这是一种从sharepoint online下载文件的简单方法，只需使用Powershell和sharepoint online url即可（无pnp Powershell）

此方法也可用于执行Sharepoint REST查询，只需使用powershell和Sharepoint REST api即可

# required MS dependencies
# feel free to download them from here https://www.microsoft.com/en-us/download/details.aspx?id=42038

Add-Type -Path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll' -ErrorAction Stop
Add-Type -Path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll' -ErrorAction Stop

# prepare passwords
$spCredential = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($user, $(ConvertTo-SecureString -AsPlainText $pass -Force))
    
# prepare and perform rest api query
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($targetSiteUrl)
$Context.Credentials = $spCredential
    try {
        #this may return an error, but still will finish context setup
        $Context.ExecuteQuery()    
    }
    catch {
        write-host "TODO: fix executeQuery() err 400 bug" -ForegroundColor Yellow
    }
$AuthenticationCookie = $Context.Credentials.GetAuthenticationCookie($targetSiteUrl, $true)
    
$WebSession = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$WebSession.Credentials = $Context.Credentials
$WebSession.Cookies.SetCookies($targetSiteUrl, $AuthenticationCookie)
$WebSession.Headers.Add("Accept", "application/json;odata=verbose")

Invoke-WebRequest  -Uri $spFileUrl -OutFile $outputFilePath -WebSession $WebSession -errorAction Stop

在哪里

• $outputFilePath

  是要保存远程文件的目标输出文件

• $targetSiteUrl

  是目标sp站点url

• $spFileUrl

  是“[sharepoint文件完整url]”

• $user

  纯文本sp用户电子邮件

• $pass

  纯文本sp用户通行证

---

所以当你说“不走运”时，到底发生了什么？有错误吗？任何类型的反馈？您不应该转义这些内部双引号吗？我认为实际问题是System.IO.FileStream（）创建中的括号不包括

Create

。您可能还需要将Create参数实例化为System.IO.filemode对象，有时候，仅仅传递一个字符串对这些不起作用。我已经做了@JNK建议的更改，得到了相同的结果。没有错误，仅本地0个长度的文件。我也尝试过System.Net.WebClient，但SharePoint Online似乎需要SharePoint客户端进行身份验证。我认为这与不知道要下载的文件大小或不在流上循环有关。。我真的很迷茫，这是一个更接近sharepoint的在线网站，但我尝试了webclient，总是得到一个403。它必须使用SharePointClientThank亲爱的。。！它拯救了我的一天。。！！然而，我对sharepoint online尝试了这种方法，但我无法正确地进行身份验证。我已经介绍了从sharepoint Onlinet下载文件的完整方法（谢谢：）这对我来说是一辈子以前的事了，但我100%相信其他人会发现它很有用

$url = 'https://the.server/path/to/the/file.txt'
$outfile = "$env:userprofile\file.txt"
Invoke-WebRequest -Uri $url -OutFile $outfile -Credential (Get-Credential)

# required MS dependencies
# feel free to download them from here https://www.microsoft.com/en-us/download/details.aspx?id=42038

Add-Type -Path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll' -ErrorAction Stop
Add-Type -Path 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll' -ErrorAction Stop

# prepare passwords
$spCredential = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($user, $(ConvertTo-SecureString -AsPlainText $pass -Force))
    
# prepare and perform rest api query
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($targetSiteUrl)
$Context.Credentials = $spCredential
    try {
        #this may return an error, but still will finish context setup
        $Context.ExecuteQuery()    
    }
    catch {
        write-host "TODO: fix executeQuery() err 400 bug" -ForegroundColor Yellow
    }
$AuthenticationCookie = $Context.Credentials.GetAuthenticationCookie($targetSiteUrl, $true)
    
$WebSession = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$WebSession.Credentials = $Context.Credentials
$WebSession.Cookies.SetCookies($targetSiteUrl, $AuthenticationCookie)
$WebSession.Headers.Add("Accept", "application/json;odata=verbose")

Invoke-WebRequest  -Uri $spFileUrl -OutFile $outputFilePath -WebSession $WebSession -errorAction Stop