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JSON Web Signature and byte arrays

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So I have been reading on how to use OAuth2 Service accounts(https://developers.google.com/identity/protocols/OAuth2ServiceAccount) and ran into an issue with autoit I can not solve. To keep this short to communicate to the Google API I need to use a JSON Web signature containing

{Base64url encoded header}.{Base64url encoded claim set}.

2019-06-04_1450.png.28afd03341f6a64ef36f0c19c221d9f3.png

The Header and claim set work fine but I do not know how to convert them to a byte array using autoit. I have looked around on the forums and website but have not found anything that seems to work. Here is my code.

#include-once
#include <Array.au3>
#include <Constants.au3>
#include <Debug.au3>
#include <File.au3>
#include "Json.au3"
#include <Process.au3>
#include <ProgressConstants.au3>
#include <String.au3>
#include <WindowsConstants.au3>
#include "WinHttp.au3"
#include <UnixTime.au3>
#include <StringConstants.au3>

Global $UnixTime = _TimeGetStamp()
$sJWTheader = '{"alg":"RS256","typ":"JWT"}'
$sJWTclaimset = '{"iss":"Removed@forprivacy.com","scope":"https://www.googleapis.com/auth/spreadsheets","aud":"https://www.googleapis.com/oauth2/v4/token","exp":' & $UnixTime + 3600 & ',"iat":' & $UnixTime & '}'



Local $taiData = DllStructCreate("BYTE[256]")
Local $sText = _base64($sJWTheader)&'.'&_base64($sJWTclaimset)
DllStructSetData($taiData, 1, StringToBinary($sText, 4))
Local $bvResult = DllStructGetData($taiData, 1) 
$sJWTSigature = $bvResult
$sJWT = _base64($sJWTheader)&'.'&_base64($sJWTclaimset)&'.'&_base64($sJWTSigature)

$POSTHeader = "Content-Type: application/x-www-form-urlencoded"
$hOpen = _WinHttpOpen()
$hConnect = _WinHttpConnect($hOpen, "https://www.googleapis.com/")

$sRead = _WinHttpSimpleSSLRequest($hConnect, "POST", "oauth2/v4/token", Default, "grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Ajwt-bearer&assertion=" & $sJWT)
_WinHttpCloseHandle($hConnect)
_WinHttpCloseHandle($hOpen)
ConsoleWrite($sRead & @LF)

The whole bytes thing is beyond with what I know about auotit. I can't tell what I need to fix.

 

 


No problem can withstand the assault of sustained thinking.Voltaire

_Array2HTMLTable()_IEClassNameGetCollection()_IEquerySelectorAll()

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    • By matwachich
      Hi AutoIters!
      Here is my new UDF about GUIs: it's an enhanced mixture of Advanced InputBox (deprecated) and KODA Parser (deprecated), with additional functions.
      What you can do with it:
      Parse KODA files and directly create GUIs (_GUIUtils_CreateFromKODA) Parse a simple JSON form definition to simply create advanced InputBoxes with any amount/type of input controls (_GUIUtils_CreateFromJSON) Created GUIs are returned as Scripting.Dictionary objects, and you have helper functions to access GUIs controls by their names (_GUIUtils_HWnd, _GUIUtils_CtrlID, _GUIUtils_HCtrl ...) A function that can make a GUI created from KODA/JSON (defined by it's $oForm object) and make it a modal InputDialogBox (just like InputBox, but returns all entered data as Scripting.Dictionary object) Functions are documented, and there are some examples.
      Consider this UDF as beta, but since I'm currently using it in a small commercial project, it should become production ready in near future.
      To always get the latest code version, get it from Github (more up to date than this topic).
      Update 04/02/2020:
      New simple application example Fixed focused control handling in _GUIUtils_InputDialog Reset input values before returning from _GUIUtils_InputDialog Fixed CloseOnEsc in _GUIUtils_InputDialog Fixed Input not reset Fixed all ListBox items are selected Project now on GitHub https://github.com/matwachich/autoit-guiutils/
      Update 05/02/2020:
      Support for nodate for Date and Time input controls (pass null value) New handling of focused control _GUIUtils_InputDialog: Now, you can specify the focused control in $oInitialData by setting "controlName:focus" = True Updated documentation of _GUIUtils_InputDialog Update 07/02/2020:
      Bug corrected when setting Data input control Added: abillity to read a single input control New functions (_GUIUtils_GetInputs, _GUIUtils_WriteInputs), documentation completion. Readme file and screenshots on Github Page  
      GUIUtils.zip
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