Accessing Microsoft Graph API with the Qt Network Authentication module

martonmiklos

Hello all,

I am trying to access my OneNote notes through the Microsoft's Graph API.

I have started from the redditclient example, my code lives here:
https://github.com/martonmiklos/qt_ms_graph_api_test

The token exchange seems to be working the MS login page opens in the browser, and logins fine.

However the requests after the authentication fail with:

QNetworkReply::AuthenticationRequiredError "Host requires authentication" "{
  "error": {
    "code": "InvalidAuthenticationToken",
    "message": "Access token validation failure. Invalid audience.",
    "innerError": {
      "request-id": "9328d369-0d27-4aae-b7a6-fa2b3773e6d1",
      "date": "2020-03-10T15:21:58"
    }
  }

}"

I have tried to add the resource parameter as suggested here https://stackoverflow.com/questions/50748492/how-can-i-use-qt-network-authorization-for-azure-ad-oauth2

Any hint would be welcome!

raven-worx

@martonmiklos said in Accessing Microsoft Graph API with the Qt Network Authentication module:

However the requests after the authentication fail with

seems you are using the wrong QNetworkAccessManager (missing the cookies) maybe?

martonmiklos

@raven-worx many thanks for your answer!

How do you mean that I am using the wrong QNetworkAccessManager?

Here you can see the relevant snipplet:
https://github.com/martonmiklos/qt_ms_graph_api_test/blob/master/redditwrapper.cpp#L62

I think the authentiaction phase goes correctly because the oauth2 (QOAuth2AuthorizationCodeFlow) object emits statusChanged with QAbstractOAuth::TemporaryCredentialsReceived -> QAbstractOAuth::Granted states.

In line 88:
https://github.com/martonmiklos/qt_ms_graph_api_test/blob/master/redditwrapper.cpp#L88
I call a simple get through the same QOAuth2AuthorizationCodeFlow object.

martonmiklos

Any idea?