(AutoIt) Office365 OAuth2 Access Token for SMTP, IMAP, POP

See more Office365 Examples

Note: It is only the initial access token that must be obtained interactively using a browser (see the code and comments below). Once the initial OAuth2 access token is obtained, then it can refreshed indefinitely with no user interaction.

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.

; -----------------------------------------------------------------------------------------------
; Important:  Setup your App Registration in Azure beforehand.  
; 
; See Create Azure App Registration for use with IMAP, POP3, and SMTP
; 
; Also, a detail that is often missed.  Make sure to specify "Web" for your Redirect URI.
; See Solution for Azure OAuth2 Error: Public clients can't send a client secret.
; -----------------------------------------------------------------------------------------------

$oOauth2 = ObjCreate("Chilkat.OAuth2")
Local $bSuccess

; This should be the port in the localhost callback URL for your app.  
; The callback URL would look like "http://localhost:3017/" if the port number is 3017.
$oOauth2.ListenPort = 3017

; Specify your OAuth2 authorization and token endpoints
; Replace "xxxxxxxxxx-71bf-4ebe-a866-738364321bf2" with your tenant ID, 
; or one of the following keywords: "common", "organizations", "consumers".
; 
; For more information about the /authorize endpoint, see Microsoft identity platform and OAuth 2.0 authorization code flow 

$oOauth2.AuthorizationEndpoint = "https://login.microsoftonline.com/xxxxxxxxxx-71bf-4ebe-a866-738364321bf2/oauth2/v2.0/authorize"
$oOauth2.TokenEndpoint = "https://login.microsoftonline.com/xxxxxxxxxx-71bf-4ebe-a866-738364321bf2/oauth2/v2.0/token"

; Replace these with actual values.
$oOauth2.ClientId = "CLIENT_ID"
$oOauth2.ClientSecret = "CLIENT_SECRET"

$oOauth2.CodeChallenge = False

; Provide a SPACE separated list of scopes.
; Important: The offline_access scope is needed to get a refresh token.
$oOauth2.Scope = "openid profile offline_access https://outlook.office365.com/SMTP.Send https://outlook.office365.com/POP.AccessAsUser.All https://outlook.office365.com/IMAP.AccessAsUser.All"

; ----------------------------------------------------------------------
; Note: It is only the initial access token that must be obtained interactively using a browser.  
; Once the initial OAuth2 access token is obtained, then it can refreshed indefinitely with no user interaction.
; ----------------------------------------------------------------------

; Begin the OAuth2 three-legged flow.  This returns a URL that should be loaded in a browser.
Local $sUrl = $oOauth2.StartAuth()
If ($oOauth2.LastMethodSuccess <> True) Then
    ConsoleWrite($oOauth2.LastErrorText & @CRLF)
    Exit
EndIf

; At this point, your application should load the URL in a browser.
; For example, 
; in C#: System.Diagnostics.Process.Start(url);
; in Java: Desktop.getDesktop().browse(new URI(url));
; in VBScript: Set wsh=WScript.CreateObject("WScript.Shell")
;              wsh.Run url
; in Xojo: ShowURL(url)  (see http://docs.xojo.com/index.php/ShowURL)
; in Dataflex: Runprogram Background "c:\Program Files\Internet Explorer\iexplore.exe" sUrl        
; The Microsoft account owner would interactively accept or deny the authorization request.

; Add the code to load the url in a web browser here...
; Add the code to load the url in a web browser here...
; Add the code to load the url in a web browser here...

; ----------------------------------------------------------------------
; Note: Read about how browser caching of credentials can cause problems.
; See OAuth2 Browser Caching Credentials
; ----------------------------------------------------------------------

; Now wait for the authorization.
; We'll wait for a max of 90 seconds.
Local $iNumMsWaited = 0
While ($iNumMsWaited < 90000) And ($oOauth2.AuthFlowState < 3)
    $oOauth2.SleepMs 100
    $iNumMsWaited = $iNumMsWaited + 100
Wend

; If there was no response from the browser within 30 seconds, then 
; the AuthFlowState will be equal to 1 or 2.
; 1: Waiting for Redirect. The OAuth2 background thread is waiting to receive the redirect HTTP request from the browser.
; 2: Waiting for Final Response. The OAuth2 background thread is waiting for the final access token response.
; In that case, cancel the background task started in the call to StartAuth.
If ($oOauth2.AuthFlowState < 3) Then
    $oOauth2.Cancel()
    ConsoleWrite("No response from the browser!" & @CRLF)
    Exit
EndIf

; Check the AuthFlowState to see if authorization was granted, denied, or if some error occurred
; The possible AuthFlowState values are:
; 3: Completed with Success. The OAuth2 flow has completed, the background thread exited, and the successful JSON response is available in AccessTokenResponse property.
; 4: Completed with Access Denied. The OAuth2 flow has completed, the background thread exited, and the error JSON is available in AccessTokenResponse property.
; 5: Failed Prior to Completion. The OAuth2 flow failed to complete, the background thread exited, and the error information is available in the FailureInfo property.
If ($oOauth2.AuthFlowState = 5) Then
    ConsoleWrite("OAuth2 failed to complete." & @CRLF)
    ConsoleWrite($oOauth2.FailureInfo & @CRLF)
    Exit
EndIf

If ($oOauth2.AuthFlowState = 4) Then
    ConsoleWrite("OAuth2 authorization was denied." & @CRLF)
    ConsoleWrite($oOauth2.AccessTokenResponse & @CRLF)
    Exit
EndIf

If ($oOauth2.AuthFlowState <> 3) Then
    ConsoleWrite("Unexpected AuthFlowState:" & $oOauth2.AuthFlowState & @CRLF)
    Exit
EndIf

ConsoleWrite("OAuth2 authorization granted!" & @CRLF)
ConsoleWrite("Access Token = " & $oOauth2.AccessToken & @CRLF)

; Get the full JSON response:
$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.Load($oOauth2.AccessTokenResponse)
$oJson.EmitCompact = False

; The JSON response looks like this:
; 
; {
;   "token_type": "Bearer",
;   "scope": "IMAP.AccessAsUser.All openid POP.AccessAsUser.All profile SMTP.Send email",
;   "expires_in": 3599,
;   "ext_expires_in": 3599,
;   "access_token": "...",
;   "refresh_token": "...",
;   "id_token": "...",
;   "expires_on": "1592748507"
; }

ConsoleWrite($oJson.Emit() & @CRLF)

; Save the JSON to a file for future requests.
$oFac = ObjCreate("Chilkat.FileAccess")
$oFac.WriteEntireTextFile("qa_data/tokens/office365.json",$oJson.Emit(),"utf-8",False)