gistfile1.php

<?php


require (__DIR__.'/../vendor/autoload.php');


use Guzzle\Http\Client;
use Fishtrap\Guzzle\Plugin\OAuth2Plugin;

use Guzzle\Log\MessageFormatter;

$clientId = '709587747215-XXXXXXXXXXXX.apps.googleusercontent.com';
$redirectURL = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];
$scope = 'https://www.googleapis.com/auth/userinfo.email '.
        'https://www.googleapis.com/auth/userinfo.profile';
$clientSecret = 'XXXXXXX-XXXXXX';

if (empty($_GET['state']) || $_GET['state'] != 'loggedin') {
    $params = array(
        'scope' => $scope,
        'state' => 'loggedin',
        'redirect_uri' => $redirectURL,
        'response_type' => 'code',
        'client_id' => $clientId ,
        'access_type' => 'offline',
        'approval_prompt' => 'force',
        // 'login_hint' => ''
    );
    $url = 'https://accounts.google.com/o/oauth2/auth?';
    header('Location: '.$url.http_build_query($params));
}
$client = new Client('https://www.googleapis.com');
$oauth = new Oauth2Plugin(array(
    'consumer_key'    => $clientId ,
    'consumer_secret' => 'zREZ7zWFxxKJJc-XXXXXXX',
    'token_secret'    => 'XXXXXXX',
    'redirect_uri'    => $redirectURL,
    'code'            => $_GET['code'],
    'auth_url'        => 'https://accounts.google.com/o/oauth2/token',
));
$client->addSubscriber($oauth);
    
$request = $client->get('/oauth2/v1/userinfo');

// try {
    $response = $request->send();
// } catch (Guzzle\Http\Exception\ClientErrorResponseException $e) {
//     var_dump($e->getMessage());
//     $_SESSION['access_token'] = refreshToken($clientId, $clientSecret, $redirectURL);
//     die;
// }
var_dump($request->getHeaders());
var_dump((string) $response->getBody());


function refreshToken($clientId, $clientSecret, $redirectURL)
{
    $client = new Client('https://accounts.google.com');

    $refresh_token = file_get_contents('/tmp/refresh_token');
    $params = array(
        'client_id' => $clientId,
        'client_secret' => $clientSecret,
        'refresh_token' => $refresh_token,
        'grant_type' => 'refresh_token',
    );
    echo '<br/>------------Refreshing Token---------------<br/>';
    try {
        $request = $client->post('/o/oauth2/token')
        ->addPostFields($params);
        $data = (array) $request->send()->json();
    } catch (Guzzle\Http\Exception\ClientErrorResponseException $e) {
        var_dump($e->getMessage());
        getAccessToken($clientId, $clientSecret, $redirectURL);
        die;
    }
var_dump($data);
    return $data['access_token'];
}