使用PowerShell下载安全文件 [英] Download secure file with PowerShell

问题描述

我正在尝试为VSTS创建新的发布任务，该任务需要下载

I'm trying to create a new release task for VSTS which needs to download a secure file from the library. However, when I run the following PowerShell script no secure files are displayed but there are two in there. Could this be not having enough rights? What should be changed.

另一个问题:当我能够列出安全文件时，我想下载一个特定的文件.我还没有找到有关如何执行此操作的示例.有人知道一个例子吗?

Another question: when I'm able to list the secure files I want to download a specific one. I haven't found any examples on how to do that. Does anyone know of an example?

$url = "$($env:SYSTEM_TEAMFOUNDATIONCOLLECTIONURI)$env:SYSTEM_TEAMPROJECTID/_apis/distributedtask/securefiles"

Write-Host "URL: $url"

$secureFiles = Invoke-RestMethod -Uri $url -Headers @{
    Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"
}
Write-Host "SecureFiles: $secureFiles"

推荐答案

我能够使用REST API，任务的访问令牌和application/octet-stream的Accept标头下载安全文件.我启用了允许脚本访问OAuth令牌".在这里，我的task.json使用名为"SecureFile"的secureFile.

I was able to download Secure Files using a REST API, the task's Access Token, and an Accept header for application/octet-stream. I enabled "Allow scripts to access the OAuth token". Here my task.json is using a secureFile named "SecureFile."

$secFileId = Get-VstsInput -Name SecureFile -Require
$secTicket = Get-VstsSecureFileTicket -Id $secFileId
$secName = Get-VstsSecureFileName -Id $secFileId
$tempDirectory = Get-VstsTaskVariable -Name "Agent.TempDirectory" -Require
$collectionUrl = Get-VstsTaskVariable -Name "System.TeamFoundationCollectionUri" -Require
$project = Get-VstsTaskVariable -Name "System.TeamProject" -Require
$filePath = Join-Path $tempDirectory $secName

$token= Get-VstsTaskVariable -Name "System.AccessToken" -Require
$user = Get-VstsTaskVariable -Name "Release.RequestedForId" -Require

$base64AuthInfo = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f $User, $token)))
$headers = @{
    Authorization=("Basic {0}" -f $base64AuthInfo)
    Accept="application/octet-stream"
} 

Invoke-RestMethod -Uri "$($collectionUrl)$project/_apis/distributedtask/securefiles/$($secFileId)?ticket=$($secTicket)&download=true&api-version=5.0-preview.1" -Headers $headers -OutFile $filePath

我正在使用"$(Build.QueuedById)"来获取构建任务中的用户ID，但老实说，我认为在这里使用什么字符串都没关系.

I am using "$(Build.QueuedById)" to get the user id in build tasks, but honestly I don't think it matters what string you use there.

如果没有Accept标头，则将为尝试下载的文件返回JSON元数据.

If you don't have the Accept header, you'll get JSON metadata back for the file you're attempting to download.

不幸的是，我在其他SO帖子和github问题页面上将其拼凑在一起；我在任何地方都找不到可以记录我正在使用的URL的官员.

Unfortunately I cobbled this together from other SO posts and the github issues pages; I can't find anywhere official that documents the URL I'm using there.

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