Google api testing in moodle

testgoogle.php

<?php
require_once('config.php');
require_once($CFG->libdir.'/googleapi.php');

$googletoken = optional_param('token', false, PARAM_RAW);
$sesskey = google_docs::get_sesskey($USER->id);

echo "Sessionkey is: $sesskey \n<br />";
echo "Google Token is: $googletoken \n<br />";

$url = google_authsub::login_url($CFG->wwwroot.'/testgoogle.php', google_docs::REALM);

if(!$sesskey){
    echo "<a href='$url'>Login</a>";
    die;
}

$gdocs = new google_docs(new google_authsub($sesskey));

print_object($gdocs->get_file_list());