Functions/Import-HashData.ps1
|
#Requires -Version 4.0 function Import-HashData { <# .SYNOPSIS Import serialized objects from disk. .DESCRIPTION Import serialized objects from disk. The import will check the content of the file for RestrictedLanguage. Only New-Date function is allowed in the script. Other commands will result in an error and the import will fail. .PARAMETER Path The target file that contains the Serialized object(s). .PARAMETER UnsafeMode If supplied, no you allow any command to be executed in the runspace when the object is deserialized. .EXAMPLE $objects = Import-Hashdata -Path c:\temp\Hash.txt This will deserialize the content/objects in the hash.txt file .INPUTS String .OUTPUTS hashtable .NOTES Author: Tore Groneng Website: www.firstpoint.no Twitter: @ToreGroneng #> [cmdletbinding( SupportsShouldProcess=$true, ConfirmImpact='medium' )] Param ( [string] $Path , [switch] $UnsafeMode ) $f = $MyInvocation.InvocationName Write-Verbose -Message "$f - START" if (-not (Test-Path -Path $Path)) { Write-Error -Message "Unable to find file [$path]" -ErrorAction Stop } Write-Verbose -Message "$f - Importing data from [$path]" [string]$data = Get-Content -Path $path -Encoding UTF8 -Raw -ReadCount 0 if ($UnsafeMode.IsPresent) { #fixme this is a hack $PreviousConfirmPreference = $ConfirmPreference $ConfirmPreference = "low" if ($PScmdlet.ShouldProcess($path, "Unsafe script invokation")) { $ConfirmPreference = $PreviousConfirmPreference Write-Warning -Message "You are importing persisted data without cheching RestrictedLanguage because you supplied the UnSafeMode switch." $script = [scriptblock]::Create($data) & $script } } else { #fixme this is a hack $PreviousConfirmPreference = $ConfirmPreference $ConfirmPreference = "high" if ($PScmdlet.ShouldProcess($path, "Safe script invokation")) { $ConfirmPreference = $PreviousConfirmPreference Write-Verbose -Message "$f - Asserting script content" Assert-ScriptString -Data $data -ErrorAction Stop } } Write-Verbose -Message "$f - END" } |