(AutoIt) GMail IMAP Authentication using OAuth2 Access Token

Demonstrates how to do IMAP OAuth2 authentication for GMail (or any other IMAP mail server supporting OAuth2 authentication). This example assumes an OAuth2 access token was previously obtained.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

; See Get GMail IMAP OAuth2 Access Token for Desktop App 
; for sample code showing how to obtain a GMail IMAP read/write access token.

; In this example, our access token was previously saved to the following file which contains JSON like this:
; 	{
; 	 "access_token": "ya39.Ci-XA_C5bGgRDC3UaD-h0_NeL-DVIQnI2gHtBBBHkZzrwlARkwX6R3O0PCDEzRlfaQ",
; 	 "token_type": "Bearer",
; 	 "expires_in": 3600,
; 	 "refresh_token": "1/r_2c_7jddspcdfesrrfKqfXtqo08D6Q-gUU0DsdfVMsx0c"
; 	}
; 
$oJson = ObjCreate("Chilkat.JsonObject")
Local $bSuccess = $oJson.LoadFile("qa_data/tokens/_gmailFullAccess.json")
If ($bSuccess <> True) Then
    ConsoleWrite("Failed to load GMail access token file." & @CRLF)
    Exit
EndIf

Local $sAccessToken = $oJson.StringOf("access_token")

; Do OAuth2 authentication by using the access token as the password in the Login method below...
$oImap = ObjCreate("Chilkat.Imap")

$oImap.Ssl = True
$oImap.Port = 993

; Connect to the GMail IMAP server.
$bSuccess = $oImap.Connect("imap.gmail.com")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Indicate that XOAUTH2 authentication is to be used:
$oImap.AuthMethod = "XOAUTH2"

; Login
; Use the email address of the GMail account that granted authorization.
$bSuccess = $oImap.Login("user@gmail.com",$sAccessToken)
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
Else
    ConsoleWrite("Successfully authenticated with GMail IMAP using XOAUTH2!" & @CRLF)
EndIf