(AutoIt) GeoOp OAuth2 Authorisation Code Grant (Public App)

Demonstrates how to get an access token for a GeoOp Third-Party Public Application using the Authorisation Code Grant flow.

Note: This example requires Chilkat v9.5.0.63 or greater.

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

; Note: This example requires Chilkat v9.5.0.63 or greater.

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

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

; This should match the Site URL configured for your GeoOp Application, such as "http://localhost:3017/"
$oOauth2.ListenPort = 3017

$oOauth2.AuthorizationEndpoint = "https://login.geoop.com/oauth2/code"
$oOauth2.TokenEndpoint = "https://login.geoop.com/oauth2/token"

; Replace the client ID with an actual value.
$oOauth2.ClientId = "GEOOP-CLIENT-ID"
; The ClientSecret should remain empty for a GeoOp public application
$oOauth2.ClientSecret = ""

; We need a few special settings for GeoOp
$oOauth2.Scope = "default"
$oOauth2.CodeChallenge = False
; Setting LocalHost equal to "none" prevents the "redirect_uri" query param from being sent in the initial HTTP request.
; Note: The GeoOp Application should still have a redirect URL specified as "http://localhost:3017/", where the port
; number matches the ListenPort above.
$oOauth2.LocalHost = "none"

; 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 GeoOp account owner would interactively accept or deny the authorization request.
; System.Diagnostics.Process.Start(url);

; 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...

; Now wait for the authorization.
; We'll wait for a max of 30 seconds.
Local $iNumMsWaited = 0
While ($iNumMsWaited < 30000) 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)

; Save the entire JSON response, which includes the access token, for future calls.
; The JSON AccessTokenResponse looks like this:
; {"access_token":"e6dqdG....mzjpT04w==","token_type":"Bearer","expires_in":2592000,"owner_id":984236}

$oFac = ObjCreate("Chilkat.FileAccess")
$oFac.WriteEntireTextFile("qa_data/tokens/geoop.json",$oOauth2.AccessTokenResponse,"utf-8",False)

ConsoleWrite("Success." & @CRLF)