Tukukkk

I am trying to implement a log in via Google on my application to access some information and controle some features of the user Youtube channel but it is returning error all the time, saying that the user is not authenticated.

That's my code.

<?php

session_start();

ini_set('display_errors', 1);

error_reporting(E_ALL);



require_once 'vendor/autoload.php';



$OAUTH2_CLIENT_ID = '-----------------------------------------';

$OAUTH2_CLIENT_SECRET = '-----------------';

$REDIRECT = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

$APPNAME = "Test";



try{

    $client = new Google_Client();

    $client->setClientId($OAUTH2_CLIENT_ID);

    $client->setClientSecret($OAUTH2_CLIENT_SECRET);

    $client->setScopes([

        'https://www.googleapis.com/auth/youtube.force-ssl',

        'https://www.googleapis.com/auth/userinfo.email',

        'https://www.googleapis.com/auth/plus.me',

        'https://www.googleapis.com/auth/userinfo.profile'

    ]);

    $client->setRedirectUri($REDIRECT);

    $client->setApplicationName($APPNAME);

    $client->setDeveloperKey('---------------------');

    $client->setAccessType('offline');

    $client->setApprovalPrompt('force');

}

catch(Exception $e){

    die('1: '.$e);

}



$youtube = new Google_Service_YouTube($client);

$google_oauth = new Google_Service_Oauth2($client);

$plusAuth = new Google_Service_Plus($client);



if (isset($_GET['code'])) { 

    if (strval($_SESSION['state']) !== strval($_GET['state'])) {

        die('The session state did not match.');

    }



    try{

        $client->authenticate($_GET['code']);



        $user_email = $google_oauth->userinfo->get()->email;

        $user_name = $plusAuth->people->get('me')->displayName;

    }

    catch(Exception $e){

        die('2: '.$e);

    }



    // Code in between



    $_SESSION['token'] = $client->getAccessToken();

}



if (isset($_SESSION['token'])) {

    $client->setAccessToken($_SESSION['token']);

    //echo "Access Token: " . json_encode($_SESSION['token']);



    header('Location: /main.php');

}





if ($client->getAccessToken()) {

    $_SESSION['token'] = $client->getAccessToken();

} 

else{

    $state = mt_rand();

    $client->setState($state);

    $_SESSION['state'] = $state;



    header('Location: '.$client->createAuthUrl());

}

?>

And I am getting this error:

2: Google_Service_Exception: { "error": { "code": 401, "message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.", "errors": [ { "message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.", "domain": "global", "reason": "unauthorized" } ], "status": "UNAUTHENTICATED" } }

I can't find the reason to the login flow is failing, but when it tries to use the properties of the Google Service Class's it always says that I am not authenticated.

If you can help me I am very welcome.