Carrying on from
How
to Pass a Password (and Enter press) to a Prompt in Powershell, I wrote
this little module that I call ‘SSH Plus for Windows’. Copy and paste the
script below into a text editor, and save as say
SSH_PLUS.psm1. Then to use it, follow the example below:
PS>
import-module C:\SCRIPTS\SSH_PLUS.psm1
PS>
SSHplus-pass
Password:
*********
PS>
ssh+ admin@10.9.1.0 node show local
The function SSHplus-pass
supplies a password (which is stored in a global variable for as long as the
PowerShell window stays open). There are also functions SSHplus-path which allows setting a path for the temporary PS1 file
we create, and SSHplus-timeout
which allows you to tune the timeout from the default 4 seconds. Instead of Windows SSH.exe (or SSH), run SSH+ -
simples!
Note 1: If you’ve
never connected to the host before, you will need to cache the SSL key. Use ssh.exe for
this.
Note 2: If nothing’s
happening, could be that ssh.exe / rssh.exe is still running in the background,
kill that and all should be good again.
Image: SSH+ in
action (ignore the warning about verbs)
The Script /
Module
#############
##
SSHplus ##
#############
Function
SSHplus-pass{
Param([String]$Password)
If(!$Password){$Global:SecPW = Read-Host
"Password" -AsSecureString}
Else{$Global:SecPW = $Password |
ConvertTo-SecureString -AsPlainText -Force}
}
Function
SSHplus-path{
Param([String]$TempFolderPath)
If(!$TempFolderPath){$TempFolderPath =
Read-Host "Path for SSHplus Temp File"}
If(!(Test-Path ($TempFolderPath))){"Invalid
path!";RETURN}
$Global:TmpFolderPath = $TempFolderPath
}
Function
SSHplus-timeout{Param([Int]$Global:SSHtimeout = 4)}
Function
SSH+{
## CHECK: PW / TEMP FILE PATH / TIMEOUT ##
If(!$Global:SecPW){"Use SSHplus-pass to
enter password.";RETURN}
If(!$Global:TmpFolderPath){$Global:TmpFolderPath = $Pwd}
[String]$TempFilePath = Join-Path
$Global:TmpFolderPath "SSH+_Temp.ps1"
"TEST" | Set-Content $TempFilePath
If(!(Test-Path $TempFilePath)){
[String]("Cannot write to " +
$Global:TmpFolderPath + ". Use SSHplus-path to enter path of SSH+ Temp
File.")
RETURN
}
If(!$Global:SSHtimeout){$Global:SSHtimeout =
4}
## OBTAIN VARIABLES FROM ARGS ##
# ARGs are expected as: ssh+ user@host
command ...
[String]$UserAtDest = $Args[0]
[String]$Dest =
($Args[0].Split("@"))[0]
$Args[0] = ""
[String]$Command = ""
$Args | Foreach{ $Command += ($_ + "
") }
$Command = $Command.Trim(" ")
## MAX THE SHELL BUFFERS AND SET THE TITLE ##
$Window = (Get-Host).UI.RawUI
$resize = $Window.BufferSize
$resize.Height = 9999
$resize.Width = 9999
$Window.BufferSize = $resize
$host.ui.RawUI.WindowTitle = "Windows
PowerShell w SSH+"
## PAINTEXT THE PASSWORD ##
$BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Global:SecPW)
[String]$CTPW =
[System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR)
## CREATE THE TEMP PS FILE (this PS1
activates after the SSH command) ##
If(Test-Path $TempFilePath){Remove-Item -Path
$TempFilePath}
[System.Array]$Temp = @()
$Temp += ('Sleep ' +
"$Global:SSHtimeout")
$Temp += ('$wshell = New-Object -ComObject
wscript.shell')
$Temp += ('$wshell.AppActivate("Windows
PowerShell w SSH+")')
$Temp += ('$wshell.SendKeys("' + $CTPW +
'")')
$Temp += ('$wshell.SendKeys("~")')
$Temp += ('Remove-Item -path "' +
$TempFilePath + '"')
$Temp | Set-Content $TempFilePath
## ACTIVATE SSH+_Temp.ps1 ##
start powershell.exe '.\SSH+_Temp.ps1'
-WorkingDirectory $Global:TmpFolderPath
ssh.exe $UserAtDest $Command
}
