Powershell-将WebRequest调用到其中带有文字'/'(％2F)的URL [英] Powershell - Invoke-WebRequest to a URL with literal '/' (%2F) in it

问题描述

我一直在尝试使用以下命令从Powershell访问带有/字符的URL(这是对gitlab服务器的查询，以检索名为"foo/bar"的项目):

I have been trying to access a URL with a / character in it from powershell, using the following command (it's a query to a gitlab server to retrieve a project called "foo/bar"):

Invoke-WebRequest https://server.com/api/v3/projects/foo%2Fbar -Verbose

现在，奇怪的是，使用PowerShell ISE或Visual Studio，请求就可以了.使用PowerShell本身时，将自动取消转义URL，并且请求失败. 例如.

Now, the odd thing is that using the PowerShell ISE or Visual Studio, the request is OK. When using PowerShell itself, the URL is automatically un-escaped and the request fails. E.g.

在ISE/VS中:

$> Invoke-WebRequest https://server.com/api/v3/projects/foo%2Fbar -Verbose
VERBOSE: GET https://server.com/api/v3/projects/foo%2Fbar with 0-byte payload
VERBOSE: received 19903-byte response of content type application/json

StatusCode        : 200
StatusDescription : OK
Content           : .... data ....

在Powershell中:

In Powershell:

$> Invoke-WebRequest https://server.com/api/v3/projects/foo%2Fbar -Verbose
VERBOSE: GET https://server.com/api/v3/projects/foo/bar with 0-byte payload
Invoke-WebRequest : {"error":"404 Not Found"}
At line:1 char:1
+ Invoke-WebRequest 'https://server.com/api/v3/projects/foo%2Fbar ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

我尝试在URL周围添加单引号和双引号，但没有任何帮助.

I have tried adding single and double quotes around the URL, but nothing is helping.

这种行为的原因可能是什么，如何使PS不能不转义URL字符串?

环境:Windows 7，也在Server 2012R2上进行了测试，结果相同.

Environment: Windows 7, also tested on Server 2012R2 with same results.

$> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      4.0
WSManStackVersion              3.0
SerializationVersion           1.1.0.1
CLRVersion                     4.0.30319.42000
BuildVersion                   6.3.9600.16406
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion      2.2

推荐答案

尝试通过此功能访问URL

Try the URL through this function

function fixuri($uri){
  $UnEscapeDotsAndSlashes = 0x2000000;
  $SimpleUserSyntax = 0x20000;

  $type = $uri.GetType();
  $fieldInfo = $type.GetField("m_Syntax", ([System.Reflection.BindingFlags]::Instance -bor [System.Reflection.BindingFlags]::NonPublic));

  $uriParser = $fieldInfo.GetValue($uri);
  $typeUriParser = $uriParser.GetType().BaseType;
$fieldInfo = $typeUriParser.GetField("m_Flags", ([System.Reflection.BindingFlags]::Instance -bor [System.Reflection.BindingFlags]::NonPublic -bor [System.Reflection.BindingFlags]::FlattenHierarchy));
$uriSyntaxFlags = $fieldInfo.GetValue($uriParser);

$uriSyntaxFlags = $uriSyntaxFlags -band (-bnot $UnEscapeDotsAndSlashes);
$uriSyntaxFlags = $uriSyntaxFlags -band (-bnot $SimpleUserSyntax);
$fieldInfo.SetValue($uriParser, $uriSyntaxFlags);
}

$uri = New-Object System.Uri -ArgumentList ("https://server.com/api/v3/projects/foo%2Fbar")
fixuri $uri

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