将另一种语言转换为powershell或在powershell中使用该语言

本文关键字:语言 powershell 或在 转换 另一种 | 更新日期: 2023-09-27 18:04:33

我找到了这段代码

// "url" is the full destination path (including filename, i.e. https://mysite.sharepoint.com/Documents/Test.txt) 
// "cookie" is the CookieContainer generated from Wichtor's code 
// "data" is the byte array containing the files contents (used a FileStream to load) 
System.Net.ServicePointManager.Expect100Continue = false; 
HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; 
request.Method = "PUT"; 
request.Accept = "*/*"; 
request.ContentType = "multipart/form-data; charset=utf-8"; 
request.CookieContainer = cookie; request.AllowAutoRedirect = false; 
request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)"; 
request.Headers.Add("Accept-Language", "en-us"); 
request.Headers.Add("Translate", "F"); request.Headers.Add("Cache-Control", "no-cache"); request.ContentLength = data.Length; 
using (Stream req = request.GetRequestStream()) 
{ req.Write(data, 0, data.Length); } 
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
Stream res = response.GetResponseStream(); 
StreamReader rdr = new StreamReader(res); 
string rawResponse = rdr.ReadToEnd(); 
response.Close();
rdr.Close();

显然成功地上传了一个大文件到sharepoint站点,但是我的代码是在powershell。有没有办法在powershell中使用它或者将它转换成powershell?

将另一种语言转换为powershell或在powershell中使用该语言

一般来说,c#代码很容易转换为PowerShell,因为c#使用与PowerShell (. net)完全相同的底层类型系统和运行时环境。

注意事项:

变量赋值

c#是一种类型安全的语言,这意味着编译器保证变量的类型及其值,如您的示例所示:
HttpWebRequest request = HttpWebRequest.Create(url); 
//     ^          ^      '________________________/^      
//     |          |                  |             |
//     |    variable name            |    statement terminator ";"
// type-name                         |
//                    static method call that returns a 
//                     value we can assign to "request"
在PowerShell:

  1. 类型是隐式的,变量不绑定到单个类型(因此不需要类型名)
  2. 变量引用以$
  3. 为前缀要访问静态成员(如上面的Create()方法),我们使用以下语法:
    • [Namespace.TypeName]::Member
  4. ;是不必要的,语句后的换行意味着终止
因此,上面的语句变成了:
$request = [System.Net.HttpWebRequest]::Create($url)

布尔值

两个c#布尔关键字(truefalse)在PowerShell中由两个自动变量$true$false表示:

[System.Net.ServicePointManager]::Expect100Continue = $false

using

PowerShell没有类似于c#的using语句的结构。要确保处理实现IDisposable的对象,必须使用try/catch/finally:
$req = $request.GetRequestStream()
try{
    $req.Write($data, 0, $data.Length)
} catch {
    throw $_
} finally {
    if($req){
        $req.Dispose()
    }
}

的构造函数

PowerShell没有用于对象实例化的new关键字,但提供了可以包装c#构造函数的New-Object cmdlet:

$rdr = New-Object -TypeName System.IO.StreamReader -ArgumentList $res

而不是:

StreamReader rdr = new StreamReader(res); 

在PowerShell 5.0及更新版本中,您现在也可以使用new静态方法调用构造函数:

$rdr = [System.IO.StreamReader]::new($res)

类型铸造

PowerShell支持显式强制转换,在c#中看起来像(typename)variable,但是再次使用方括号代替圆括号:

[System.Net.HttpWebResponse]$request.GetResponse()

并且(从3.0版本开始)它还支持未检查的强制转换(仍然使用方括号):

$request.GetResponse() -as [System.Net.HttpWebResponse]

如果不能强制转换,后者将返回$null,而不是抛出错误。


这应该会让你在任何时间翻译。从你的代码查找注释,似乎你可能需要翻译"维克多的代码",以及,为了生成$cookie容器。

见下面的例子。我必须把代码包装在类和函数中。

$code = @"
using System.Security.Policy;
using System.IO;
using System.Net;
public class MySharepointTools 
{
    public void UploadFile(System.String url, System.Net.CookieContainer cookie, System.Byte[] data)
    {
        System.Net.ServicePointManager.Expect100Continue = false; 
        HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; 
        request.Method = "PUT"; 
        request.Accept = "*/*"; 
        request.ContentType = "multipart/form-data; charset=utf-8"; 
        request.CookieContainer = cookie; request.AllowAutoRedirect = false; 
        request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)"; 
        request.Headers.Add("Accept-Language", "en-us"); 
        request.Headers.Add("Translate", "F"); request.Headers.Add("Cache-Control", "no-cache"); request.ContentLength = data.Length; 
        using (Stream req = request.GetRequestStream()) 
        { req.Write(data, 0, data.Length); } 
        HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
        Stream res = response.GetResponseStream(); 
        StreamReader rdr = new StreamReader(res); 
        string rawResponse = rdr.ReadToEnd(); 
        response.Close();
        rdr.Close();
    }
}
"@
Add-Type -TypeDefinition $code -Language CSharp 
$tools = New-Object MySharepointTools
现在你可以使用 来调用这个方法
$Tools.UploadFile(url, cookie, data)