203 lines
7.4 KiB
PowerShell
203 lines
7.4 KiB
PowerShell
#!powershell
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# WANT_JSON
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# POWERSHELL_COMMON
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$params = Parse-Args -arguments $args -supports_check_mode $true;
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# C# code to determine link target, copied from http://chrisbensen.blogspot.com.au/2010/06/getfinalpathnamebyhandle.html
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$symlink_util = @"
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using System;
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using System.Text;
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using Microsoft.Win32.SafeHandles;
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using System.ComponentModel;
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using System.Runtime.InteropServices;
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namespace Ansible.Command
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{
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public class SymLinkHelper
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{
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private const int FILE_SHARE_WRITE = 2;
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private const int CREATION_DISPOSITION_OPEN_EXISTING = 3;
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private const int FILE_FLAG_BACKUP_SEMANTICS = 0x02000000;
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[DllImport("kernel32.dll", EntryPoint = "GetFinalPathNameByHandleW", CharSet = CharSet.Unicode, SetLastError = true)]
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public static extern int GetFinalPathNameByHandle(IntPtr handle, [In, Out] StringBuilder path, int bufLen, int flags);
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[DllImport("kernel32.dll", EntryPoint = "CreateFileW", CharSet = CharSet.Unicode, SetLastError = true)]
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public static extern SafeFileHandle CreateFile(string lpFileName, int dwDesiredAccess,
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int dwShareMode, IntPtr SecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, IntPtr hTemplateFile);
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public static string GetSymbolicLinkTarget(System.IO.DirectoryInfo symlink)
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{
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SafeFileHandle directoryHandle = CreateFile(symlink.FullName, 0, 2, System.IntPtr.Zero, CREATION_DISPOSITION_OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, System.IntPtr.Zero);
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if(directoryHandle.IsInvalid)
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throw new Win32Exception(Marshal.GetLastWin32Error());
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StringBuilder path = new StringBuilder(512);
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int size = GetFinalPathNameByHandle(directoryHandle.DangerousGetHandle(), path, path.Capacity, 0);
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if (size<0)
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throw new Win32Exception(Marshal.GetLastWin32Error()); // The remarks section of GetFinalPathNameByHandle mentions the return being prefixed with "\\?\" // More information about "\\?\" here -> http://msdn.microsoft.com/en-us/library/aa365247(v=VS.85).aspx
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if (path[0] == '\\' && path[1] == '\\' && path[2] == '?' && path[3] == '\\')
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return path.ToString().Substring(4);
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else
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return path.ToString();
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}
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}
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}
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"@
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Add-Type -TypeDefinition $symlink_util
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function Date_To_Timestamp($start_date, $end_date)
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{
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If($start_date -and $end_date)
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{
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Write-Output (New-TimeSpan -Start $start_date -End $end_date).TotalSeconds
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}
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}
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function Get-Hash($path, $algorithm) {
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# Using PowerShell V4 and above we can use some powershell cmdlets instead of .net
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If ($PSVersionTable.PSVersion.Major -ge 4)
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{
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$hash = (Get-FileHash $path -Algorithm $algorithm).Hash
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}
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Else
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{
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$net_algorithm = [Security.Cryptography.HashAlgorithm]::Create($algorithm)
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$raw_hash = [System.BitConverter]::ToString($net_algorithm.ComputeHash([System.IO.File]::ReadAllBytes($path)))
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$hash = $raw_hash -replace '-'
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}
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$hash.ToLower()
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}
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$path = Get-AnsibleParam -obj $params -name 'path' -failifempty $true;
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$get_md5 = Get-AnsibleParam -obj $params -name 'get_md5' -failifempty $false -default $true | ConvertTo-Bool;
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$get_checksum = Get-AnsibleParam -obj $params -name 'get_checksum' -failifempty $false -default $true | ConvertTo-Bool;
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$checksum_algorithm = Get-AnsibleParam -obj $params -name 'checksum_algorithm' -failifempty $false -default 'sha1' -ValidateSet 'sha1','sha256','sha384','sha512'
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$result = New-Object psobject @{
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stat = New-Object psobject
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changed = $false
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};
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If (Test-Path $path)
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{
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Set-Attr $result.stat "exists" $TRUE;
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# Need to use -Force so it picks up hidden files
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$info = Get-Item -Force $path;
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$iscontainer = $info.PSIsContainer;
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$filename = $info.Name;
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$filepath = $info.FullName;
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$attributes = @()
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foreach ($attribute in ($info.Attributes -split ',')) {
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$attributes += $attribute.Trim();
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}
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$attributes_string = $info.Attributes.ToString();
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$isreadonly = $attributes -contains 'ReadOnly';
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$ishidden = $attributes -contains 'Hidden';
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$isarchive = $attributes -contains 'Archive';
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If ($info)
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{
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$accesscontrol = $info.GetAccessControl();
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}
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Else
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{
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$accesscontrol = $null;
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}
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$owner = $accessControl.Owner;
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$creationtime = $info.CreationTime;
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$lastaccesstime = $info.LastAccessTime;
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$lastwritetime = $info.LastAccessTime;
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$epoch_date = Get-Date -Date "01/01/1970"
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$islink = $false
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$isdir = $false
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$isshared = $false
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If ($attributes -contains 'ReparsePoint')
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{
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# TODO: Find a way to differenciate between soft and junction links
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$islink = $true
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$isdir = $true
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# Try and get the symlink source, can result in failure if link is broken
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try {
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$lnk_source = [Ansible.Command.SymLinkHelper]::GetSymbolicLinkTarget($path)
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Set-Attr $result.stat "lnk_source" $lnk_source
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} catch {}
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}
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ElseIf ($iscontainer)
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{
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$isdir = $true
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$share_info = Get-WmiObject -Class Win32_Share -Filter "Path='$($info.Fullname -replace '\\', '\\')'";
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If ($share_info -ne $null)
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{
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$isshared = $true
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Set-Attr $result.stat "sharename" $share_info.Name;
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}
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$dir_files_sum = Get-ChildItem $info.FullName -Recurse | Measure-Object -property length -sum;
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If ($dir_files_sum -eq $null)
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{
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Set-Attr $result.stat "size" 0;
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}
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Else{
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Set-Attr $result.stat "size" $dir_files_sum.Sum;
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}
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}
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Else
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{
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Set-Attr $result.stat "size" $info.Length;
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Set-Attr $result.stat "extension" $info.extension;
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If ($get_md5) {
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$md5 = Get-Hash -path $path -algorithm 'md5'
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Set-Attr $result.stat "md5" $md5
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}
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If ($get_checksum) {
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$checksum = Get-Hash -path $path -algorithm $checksum_algorithm
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Set-Attr $result.stat "checksum" $checksum
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}
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}
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Set-Attr $result.stat "islink" $islink;
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Set-Attr $result.stat "isdir" $isdir;
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Set-Attr $result.stat "isshared" $isshared;
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Set-Attr $result.stat "isreadonly" $isreadonly;
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Set-Attr $result.stat "ishidden" $ishidden;
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Set-Attr $result.stat "isarchive" $isarchive;
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Set-Attr $result.stat "filename" $filename;
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Set-Attr $result.stat "path" $filepath;
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Set-Attr $result.stat "attributes" $attributes_string;
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Set-Attr $result.stat "owner" $owner;
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Set-Attr $result.stat "creationtime" (Date_To_Timestamp $epoch_date $creationtime);
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Set-Attr $result.stat "lastaccesstime" (Date_To_Timestamp $epoch_date $lastaccesstime);
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Set-Attr $result.stat "lastwritetime" (Date_To_Timestamp $epoch_date $lastwritetime);
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}
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Else
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{
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Set-Attr $result.stat "exists" $FALSE;
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}
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Exit-Json $result;
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