Meistens muss ich alles ganz genau wissen: Z.B. wie ein spezielles PowerShell-CmdLet implementiert ist.
Mittels des folgenden kleinen Skriptes kann man ganz schnell die implementierende DLL zu einem CmdLet finden und notfalls auch schon mal einen decompiler starten.
Die Inspiration kommt von OISIN GREHAN.
| <# | |
| .SYNOPSIS | |
| Run reflection on a given commandlet | |
| .DESCRIPTION | |
| Run reflection on any CmdLet | |
| .NOTES | |
| This code was heavily inspired from OISIN GREHAN, see http://www.nivot.org/post/2008/10/30/ATrickToJumpDirectlyToACmdletsImplementationInReflector | |
| .Example | |
| Get-Command Get-ChildItem | Reflect-Cmdlet -Reflect ShowDllOnly | |
| .Example | |
| Reflect-Cmdlet -CmdLet (Get-Command Get-ChildItem) -Reflect ShowDllOnly | |
| #> | |
| [CmdletBinding()] | |
| param( | |
| [Parameter(Position=0, | |
| Mandatory=$true, | |
| ValueFromPipeline=$true, | |
| ValueFromPipelineByPropertyName=$true, | |
| HelpMessage = "The CmdLet to reflect")] | |
| [Management.Automation.CommandInfo]$CmdLet, | |
| [Parameter(HelpMessage = "Which reflector to use.. ")] | |
| [ValidateSet("ShowDllOnly", "Reflector", "JustDecompile", "ILSpy")] | |
| [string]$Reflect = "ShowDllOnly" | |
| ) | |
| # resolve to command if this is an alias | |
| while ($CmdLet.CommandType -eq "Alias") { | |
| $def = $CmdLet.definition; | |
| Write-Verbose "$CmdLet is an alias. Using Definition: $def"; | |
| $CmdLet = Get-Command $def | |
| } | |
| Write-Verbose "Reflecting $CmdLet."; | |
| $name = $CmdLet.ImplementingType | |
| $DLL = $CmdLet.DLL | |
| if($DLL -eq $null) { | |
| Write-Warning "$CmdLet is not implemented in any DLL. Possibly a script?"; | |
| if($CmdLet.Path -ne $null) { | |
| Write-Warning "Have a look at: $($CmdLet.Path)" | |
| } | |
| #$CmdLet | gm | |
| Exit; | |
| } | |
| Write-Verbose "Type:$name, DLL:$DLL"; | |
| switch ($Reflect) { | |
| "ShowDllOnly" { | |
| Write-Output "$CmdLet is implemented in $name in the dll:$DLL"; | |
| } | |
| "Reflector" { | |
| if (-not (Get-Command reflector.exe -ErrorAction SilentlyContinue)) { | |
| throw "Reflector.exe is not in your path." | |
| } | |
| Write-Verbose "Starting Reflector."; | |
| reflector /select:$name $DLL | |
| } | |
| "JustDecompile" { | |
| $regKey = Get-Item HKCU:\Software\Telerik\JustDecompile -ErrorAction SilentlyContinue | |
| if($regKey -eq $null) { | |
| throw "It seems JustDecompile is not installed." | |
| } | |
| $exe = $regKey.GetValue("ExecutablePath") ; | |
| Write-Verbose "invoking $exe"; | |
| &$exe """$DLL""" ; #TODO: select the right type... | |
| } | |
| "ILSpy" { | |
| if (-not (Get-Command ilspy.exe -ErrorAction SilentlyContinue)) { | |
| throw "ilspy.exe is not in your path." | |
| } | |
| Write-Verbose "Starting ILSpy."; | |
| ilspy $DLL /navigateTo:T:$name | |
| } | |
| } |
