67 lines
2.1 KiB
PowerShell
67 lines
2.1 KiB
PowerShell
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function New-SftpPasswordHash {
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<#
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.SYNOPSIS
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Generates a password hash for use by SFTP functions.
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.PARAMETER Password
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[string] The password to hash.
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.EXAMPLE
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New-SftpPasswordHash -Password "Example"
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#>
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[CmdletBinding()]
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[OutputType([string])]
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param(
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[Parameter(Mandatory = $true)]
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[ValidateNotNullOrEmpty()]
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[string]$Password
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)
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$logLead = Get-LogLeadName
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$scriptBlock = {
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$modulePath = $args[0]
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$password = $args[1]
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Import-Module $modulePath
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return (New-PasswordHash $password)
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}
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# Primary directory for DLL based on installed module paths.
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$dllPath = [IO.Path]::Combine( "$PSScriptRoot", 'Resources', 'EncryptPassword.dll' )
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if ( $false -eq ( Test-Path $dllPath ) ) {
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# Fallback directory for local testing of this function.
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$dllPath = [IO.Path]::Combine( "$PSScriptRoot", '..', 'Resources', 'EncryptPassword.dll' )
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}
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if ( $false -eq ( Test-Path $dllPath ) ) {
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Write-Error "$logLead : Unable to find EncryptPassword.dll! Check your module path and retry."
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return $null
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}
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# Wrap the call in a PSSession to prevent the DLL from being loaded into our general context.
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# If we load the DLL in a new session, the DLL is unloaded when we destroy the session.
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#
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# Note that wrapping this functionality in an Invoke-Command does not yield a string; it only yields
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# an object that behaves like a string unless it is unwrapped by 'ConvertTo-Json'.
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#
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# To see this for yourself, run the following command:
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# ConvertTo-Json ( Invoke-Command -ComputerName localhost -ScriptBlock { return 'Test' })
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#
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# To avoid this behavior, we cast the result to a string which appears to trim off those extra properties.
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#
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# To see this for yourself, run the following command:
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# ConvertTo-Json ([string](Invoke-Command -ComputerName localhost -ScriptBlock { return 'Test' }))
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$tempSession = New-PSSession
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[string]$result = Invoke-Command -Session $tempSession -ScriptBlock $scriptBlock -ArgumentList @( $dllPath, $Password )
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Remove-PSSession -Session $tempSession
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return $result
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}
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