WinSSH

0.8.3

Public/Generate-SSHUserDirFileInfo.ps1

                                <#

    .SYNOPSIS

        This function generates:

            - An ArrayList of PSCustomObjects that describes the contents of each of the files within the

            "$HOME\.ssh" directory

            - An .xml file that can be ingested by the 'Import-CliXml' cmdlet to generate

            the aforementioned ArrayList of PSCustomObjects in future PowerShell sessions.

            Each PSCustomObject in the ArrayList contains information similar to:

                File     : C:\Users\zeroadmin\.ssh\PwdProtectedPrivKey

                FileType : RSAPrivateKey

                Contents : {-----BEGIN RSA PRIVATE KEY-----, Proc-Type: 4,ENCRYPTED, DEK-Info: AES-128-CBC,27E137C044FC7857DAAC05C408472EF8, ...}

                Info     : {-----BEGIN RSA PRIVATE KEY-----, Proc-Type: 4,ENCRYPTED, DEK-Info: AES-128-CBC,27E137C044FC7857DAAC05C408472EF8, ...}

        By default, the .xml file is written to "$HOME\.ssh\SSHDirectoryFileInfo.xml"

    .DESCRIPTION

        See .SYNOPSIS

    .NOTES

    .PARAMETER PathToHomeDotSSHDirectory

        This parameter is OPTIONAL.

        This parameter takes a string that represents a full path to the User's .ssh directory. You should

        only use this parameter if the User's .ssh is NOT under "$HOME\.ssh" for some reason. 

    .EXAMPLE

        # Open an elevated PowerShell Session, import the module, and -

        PS C:\Users\zeroadmin> Generate-SSHUserDirFileInfo

#>

function Generate-SSHUserDirFileInfo {

    [CmdletBinding()]

    Param(

        [Parameter(Mandatory=$False)]

        [string]$PathToHomeDotSSHDirectory

    )

    $OpenSSHWinPath = "$env:ProgramFiles\OpenSSH-Win64"

    if (!$(Test-Path $OpenSSHWinPath)) {

        Write-Error "The path $OpenSSHWinPath was not found! Halting!"

        $global:FunctionResult = "1"

        return

    }

    [System.Collections.Arraylist][array]$CurrentEnvPathArray = $env:Path -split ";" | Where-Object {![System.String]::IsNullOrWhiteSpace($_)}

    if ($CurrentEnvPathArray -notcontains $OpenSSHWinPath) {

        $CurrentEnvPathArray.Insert(0,$OpenSSHWinPath)

        $env:Path = $CurrentEnvPathArray -join ";"

    }

    # Make sure we have access to ssh binaries

    if (![bool]$(Get-Command ssh-keygen -ErrorAction SilentlyContinue)) {

        Write-Error "Unable to find 'ssh-keygen.exe'! Halting!"

        $global:FunctionResult = "1"

        return

    }

    if (!$PathToHomeDotSSHDirectory) {

        $PathToHomeDotSSHDirectory = "$HOME\.ssh"

    }

    # Get a list of all files under $HOME\.ssh

    [array]$SSHHomeFiles = Get-ChildItem -Path $PathToHomeDotSSHDirectory -File | Where-Object {$_.Name -ne "SSHDirectoryFileInfo.xml"}

    if ($SSHHomeFiles.Count -eq 0) {

        Write-Error "Unable to find any files under '$PathToHomeDotSSHDirectory'! Halting!"

        $global:FunctionResult = "1"

        return

    }

    [System.Collections.ArrayList]$ArrayOfPSObjects = @()

    foreach ($File in $SSHHomeFiles.FullName) {

        #Write-Host "Analyzing file '$File' ..."

        try {

            $GetSSHFileInfoResult = Get-SSHFileInfo -PathToKeyFile $File -ErrorAction Stop -WarningAction SilentlyContinue

            if (!$GetSSHFileInfoResult) {

                #Write-Warning "'$File' is not a valid Public Key, Private Key, or Public Key Certificate!"

                #Write-Host "Ensuring '$File' is UTF8 encoded and trying again..." -ForegroundColor Yellow

                Set-Content -Path $File -Value $(Get-Content $File) -Encoding UTF8

            }

            $GetSSHFileInfoResult = Get-SSHFileInfo -PathToKeyFile $File -ErrorAction Stop -WarningAction SilentlyContinue

            if (!$GetSSHFileInfoResult) {

                Write-Verbose "'$File' is definitley not a valid Public Key, Private Key, or Public Key Certificate!"

            }

            # Sample Output:

            # NOTE: Possible values for the 'FileType' property are 'RSAPrivateKey','RSAPublicKey', and 'RSAPublicKeyCertificate'

            <#

                File     : C:\Users\zeroadmin\.ssh\PwdProtectedPrivKey

                FileType : RSAPrivateKey

                Contents : {-----BEGIN RSA PRIVATE KEY-----, Proc-Type: 4,ENCRYPTED, DEK-Info: AES-128-CBC,27E137C044FC7857DAAC05C408472EF8, ...}

                Info     : {-----BEGIN RSA PRIVATE KEY-----, Proc-Type: 4,ENCRYPTED, DEK-Info: AES-128-CBC,27E137C044FC7857DAAC05C408472EF8, ...}

            #>

            $null = $ArrayOfPSObjects.Add($GetSSHFileInfoResult)

        }

        catch {

            Write-Error $_

            $global:FunctionResult = "1"

            return

        }

    }

    $ArrayOfPSObjects

    $ArrayOfPSObjects | Export-CliXml "$PathToHomeDotSSHDirectory\SSHDirectoryFileInfo.xml"

}

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