PowerShellで作るファイルサーバでファイル一覧を表示する

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Building a web server with PowerShell | 4sysops

This script starts a small web server listening on localhost:8080 that will impersonate the authenticated user and serve static content. This means if they do not have NTFS permissions to the file they will get an access denied or a 404 file not found if they do not have NTFS access to list contents of the directory. (github.com)

ほぼそのままのスクリプトに、ちょっとだけ改造させていただき、日本語の文字化け対応を行ったバージョン

このスクリプトを実行し、ブラウザから　http://localhost:8080/　にアクセスするとスクリプトを格納しているフォルダー内のファイル一覧を取得することができる。

function Get-DirectoryContent {

    <#
    .SYNOPSIS
     
        Function to get directory content
    .EXAMPLE
     
        Get-DirectoryContent -Path "C:\" -HeaderName "poshserver.net" -RequestURL "http://poshserver.net" -SubfolderName "/"
		
#>

    [CmdletBinding(SupportsShouldProcess = $true)]
    param (

        [Parameter(
            Mandatory = $true,
            HelpMessage = 'Directory Path')]
        [string]$Path,

        [Parameter(
            Mandatory = $false,
            HelpMessage = 'Header Name')]
        [string]$HeaderName,

        [Parameter(
            Mandatory = $false,
            HelpMessage = 'Request URL')]
        [string]$RequestURL,
	
        [Parameter(
            Mandatory = $false,
            HelpMessage = 'Subfolder Name')]
        [string]$SubfolderName,

        [string]$Root
    )

    @"
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>$($HeaderName)</title>
</head>
<body>
<h1>$($HeaderName) - $($SubfolderName)</h1>
<hr>
"@
    @"
<a href="./../">[To Parent Directory]</a><br><br>
<table cellpadding="5">
"@
    $Files = (Get-ChildItem "$Path")
    foreach ($File in $Files) {
        $FileURL = ($File.FullName -replace [regex]::Escape($Root), "" ) -replace "\\", "/"
        if (!$File.Length) { $FileLength = "[dir]" } else { $FileLength = $File.Length }
        @"
<tr>
<td align="right">$($File.LastWriteTime)</td>
<td align="right">$($FileLength)</td>
<td align="left"><a href="$($FileURL)">$($File.Name)</a></td>
</tr>
"@
    }
    @"
</table>
<hr>
</body>
</html>
"@
    Write-Host $File.Name
}

[System.Reflection.Assembly]::LoadWithPartialName("System.Web")

$listener = New-Object System.Net.HttpListener
$listener.Prefixes.Add("http://localhost:8080/")
$listener.AuthenticationSchemes = [System.Net.AuthenticationSchemes]::IntegratedWindowsAuthentication
$listener.Start()

New-PSDrive -Name FileServe -PSProvider FileSystem -Root $PWD.Path
$Root = $PWD.Path
cd FileServe:\

do {
    $context = $listener.GetContext()
    $requestUrl = $context.Request.Url
    $response = $context.Response
    $context.User.Identity.Impersonate()

    Write-Host "> $requestUrl"
    $Content = ""

    $localPath = $requestUrl.LocalPath
    try {
        $RequestedItem = Get-Item -LiteralPath "FileServe:\$localPath" -Force -ErrorAction Stop
        $FullPath = $RequestedItem.FullName
        if ($RequestedItem.Attributes -match "Directory") {
            $Content = Get-DirectoryContent -Path $FullPath -HeaderName "PowerShell FileServer" -RequestURL "http://localhost:8080" -SubfolderName $localPath -Root $Root
            $Encoding = [system.Text.Encoding]::UTF8
            $Content = $Encoding.GetBytes($Content)
            $response.ContentType = "text/html"
        }
        else {
            $Content = [System.IO.File]::ReadAllBytes($FullPath)
            $response.ContentType = [System.Web.MimeMapping]::GetMimeMapping($FullPath)
        }
    }
    catch [System.UnauthorizedAccessException] {
        Write-Host "Access Denied"
        Write-Host "Current user:  $([System.Security.Principal.WindowsIdentity]::GetCurrent().Name)"
        Write-Host "Requested File: FileServe:\$localPath"
        $response.StatusCode = 404
        $Content = [System.Text.Encoding]::UTF8.GetBytes("<h1>404 - Page not found</h1>")
    }
    catch [System.Management.Automation.ItemNotFoundException] {
        Write-Host "No route found for:  FileServe:\$localPath"
        $response.StatusCode = 404
        $Content = [System.Text.Encoding]::UTF8.GetBytes("<h1>404 - Page not found</h1>")
    }
    catch {
        $_
        $Content = "$($_.InvocationInfo.MyCommand.Name) : $($_.Exception.Message)"
        $Content += "$($_.InvocationInfo.PositionMessage)"
        $Content += "    + $($_.CategoryInfo.GetMessage())"
        $Content += "    + $($_.FullyQualifiedErrorId)"

        $Content = [System.Text.Encoding]::UTF8.GetBytes($Content)
        $response.StatusCode = 500
    }


    $response.ContentLength64 = $Content.Length
    $response.OutputStream.Write($Content, 0, $Content.Length)
    $response.Close()

    $responseStatus = $response.StatusCode
    Write-Host "< $responseStatus"
} while ($listener.IsListening)

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function Get-DirectoryContent {

.SYNOPSIS

Function to get directory content

.EXAMPLE

Get-DirectoryContent -Path "C:\" -HeaderName "poshserver.net" -RequestURL "http://poshserver.net" -SubfolderName "/"

[CmdletBinding(SupportsShouldProcess = $true)]

param (

[Parameter(

Mandatory = $true,

HelpMessage = 'Directory Path')]

[string]$Path,

[Parameter(

Mandatory = $false,

HelpMessage = 'Header Name')]

[string]$HeaderName,

[Parameter(

Mandatory = $false,

HelpMessage = 'Request URL')]

[string]$RequestURL,

[Parameter(

Mandatory = $false,

HelpMessage = 'Subfolder Name')]

[string]$SubfolderName,

[string]$Root

)

<html>

<head>

<title>$($HeaderName)</title>

</head>

<body>

<h1>$($HeaderName) - $($SubfolderName)</h1>

<hr>

<a href="./../">[To Parent Directory]</a><br><br>

$Files = (Get-ChildItem "$Path")

foreach ($File in $Files) {

$FileURL = ($File.FullName -replace [regex]::Escape($Root), "" ) -replace "\\", "/"

if (!$File.Length) { $FileLength = "[dir]" } else { $FileLength = $File.Length }

<tr>

<td align="right">$($File.LastWriteTime)</td>

<td align="right">$($FileLength)</td>

</tr>

}

</table>

<hr>

</body>

</html>

Write-Host $File.Name

}

[System.Reflection.Assembly]::LoadWithPartialName("System.Web")

$listener = New-Object System.Net.HttpListener

$listener.Prefixes.Add("http://localhost:8080/")

$listener.AuthenticationSchemes = [System.Net.AuthenticationSchemes]::IntegratedWindowsAuthentication

$listener.Start()

New-PSDrive -Name FileServe -PSProvider FileSystem -Root $PWD.Path

$Root = $PWD.Path

cd FileServe:\

do {

$context = $listener.GetContext()

$requestUrl = $context.Request.Url

$response = $context.Response

$context.User.Identity.Impersonate()

Write-Host "> $requestUrl"

$Content = ""

$localPath = $requestUrl.LocalPath

try {

$RequestedItem = Get-Item -LiteralPath "FileServe:\$localPath" -Force -ErrorAction Stop

$FullPath = $RequestedItem.FullName

if ($RequestedItem.Attributes -match "Directory") {

$Content = Get-DirectoryContent -Path $FullPath -HeaderName "PowerShell FileServer" -RequestURL "http://localhost:8080" -SubfolderName $localPath -Root $Root

$Encoding = [system.Text.Encoding]::UTF8

$Content = $Encoding.GetBytes($Content)

$response.ContentType = "text/html"

}

else {

$Content = [System.IO.File]::ReadAllBytes($FullPath)

$response.ContentType = [System.Web.MimeMapping]::GetMimeMapping($FullPath)

}

catch [System.UnauthorizedAccessException] {

Write-Host "Access Denied"

Write-Host "Current user: $([System.Security.Principal.WindowsIdentity]::GetCurrent().Name)"

Write-Host "Requested File: FileServe:\$localPath"

$response.StatusCode = 404

$Content = [System.Text.Encoding]::UTF8.GetBytes("<h1>404 - Page not found</h1>")

}

catch [System.Management.Automation.ItemNotFoundException] {

Write-Host "No route found for: FileServe:\$localPath"

$response.StatusCode = 404

$Content = [System.Text.Encoding]::UTF8.GetBytes("<h1>404 - Page not found</h1>")

}

catch {

$Content = "$($_.InvocationInfo.MyCommand.Name) : $($_.Exception.Message)"

$Content += "$($_.InvocationInfo.PositionMessage)"

$Content += " + $($_.CategoryInfo.GetMessage())"

$Content += " + $($_.FullyQualifiedErrorId)"

$Content = [System.Text.Encoding]::UTF8.GetBytes($Content)

$response.StatusCode = 500

}

$response.ContentLength64 = $Content.Length

$response.OutputStream.Write($Content, 0, $Content.Length)

$response.Close()

$responseStatus = $response.StatusCode

Write-Host "< $responseStatus"

} while ($listener.IsListening)

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