<?php
require_once __DIR__ . '/vendor/autoload.php';
class GoogleDrivePhp
{
private $session_time = 60 * 60 * 24 * 30; // 1 month
function init()
{
$this->setBaseurl();
$this->extendSession();
$this->initGoogleClient();
$this->bindLogout();
$this->bindLogin();
$this->bindMain();
}
function response($data, $code = 200)
{
http_response_code($code);
header('Content-Type: application/json');
echo json_encode($data);
die();
}
function isAjax()
{
return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) &&
strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') ||
(!empty($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], 'application/json') !== false);
}
function bindMain()
{
if (@$_GET['login'] != '1' && @$_GET['logout'] != '1') {
if (@$_SESSION['access_token'] != '') {
$access_token = $_SESSION['access_token'];
$this->client->setAccessToken($access_token);
// if access token is expired, create new from refresh token
if ($this->client->isAccessTokenExpired()) {
$response = $this->client->fetchAccessTokenWithRefreshToken($this->client->getRefreshToken());
if (@$response['access_token'] != '') {
$_SESSION['access_token'] = $response;
$this->client->setAccessToken($response);
}
}
$drive = new Google\Service\Drive($this->client);
$files = $drive->files->listFiles([])->getFiles();
$expiration = round(($access_token['created'] + $access_token['expires_in'] - 30 - time()) / 60);
$data = [
'expiration' => $expiration,
'access_token' => $access_token,
'access_token2' => $this->client->getAccessToken(),
'files' => $files
];
if ($this->isAjax()) {
$this->response([
'success' => true,
'data' => $data
]);
} else {
echo '<pre>';
var_dump($data);
echo '</pre>';
echo '<a href="' . $this->baseurl . '?logout=1">Logout</a>';
}
} else {
if ($this->isAjax()) {
$this->response(
[
'success' => false
],
401
);
} else {
echo '<a href="' . $this->baseurl . '?login=1">Login</a>';
}
}
}
}
function bindLogout()
{
if (@$_GET['logout'] == '1') {
session_unset();
session_destroy();
if ($this->isAjax()) {
$this->response(['success' => true]);
} else {
$this->redirect($this->baseurl);
}
die();
}
}
function bindLogin()
{
if (@$_GET['login'] == '1') {
if (!isset($_GET['code'])) {
if ($this->isAjax()) {
$_SESSION['redirect_after'] = $_SERVER['HTTP_REFERER'];
$this->response(['success' => true, 'data' => ['redirect_url' => $this->client->createAuthUrl()]]);
} else {
$_SESSION['redirect_after'] = $this->baseurl;
$this->redirect($this->client->createAuthUrl());
}
} else {
$this->client->authenticate($_GET['code']);
$_SESSION['access_token'] = $this->client->getAccessToken();
$this->redirect(@$_SESSION['redirect_after'] != '' ? $_SESSION['redirect_after'] : $this->baseurl);
}
die();
}
}
function redirect($url)
{
header('Location: ' . filter_var($url, FILTER_SANITIZE_URL));
}
function setBaseurl()
{
$this->baseurl =
'http' .
(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' ? 's' : '') .
'://' .
$_SERVER['HTTP_HOST'] .
parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
}
function extendSession()
{
ini_set('session.gc_maxlifetime', $this->session_time);
session_set_cookie_params($this->session_time);
session_start();
}
function initGoogleClient()
{
$this->client = new Google\Client();
$this->client->setAuthConfig('client_secret.json');
$this->client->addScope(Google\Service\Drive::DRIVE_READONLY);
$this->client->setRedirectUri($this->baseurl . '?login=1');
$this->client->setAccessType('offline');
$this->client->setPrompt('consent');
$this->client->setIncludeGrantedScopes(true);
}
}
$g = new GoogleDrivePhp();
$g->init();<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5, minimum-scale=1" />
<title>gis</title>
<script>
class GoogleDriveJs {
init() {
this.bindLogin();
this.bindLogout();
this.loadDataAndBuildHtml();
}
loadDataAndBuildHtml() {
window.addEventListener('load', async e => {
let response = await this.makeCall('');
if (response.success === true) {
document.body.insertAdjacentHTML('beforeend', '<a href="#" class="logout">Logout!</a>');
document.body.insertAdjacentHTML(
'beforeend',
'<pre>' + JSON.stringify(response.data.files) + '</pre>'
);
} else {
document.body.insertAdjacentHTML('beforeend', '<a href="#" class="login">Login!</a>');
}
});
}
bindLogin() {
document.addEventListener('click', async e => {
if (e.target.closest('.login')) {
e.preventDefault();
let response = await this.makeCall('?login=1');
if (response.success === true) {
window.location.href = response.data.redirect_url;
}
}
});
}
bindLogout() {
document.addEventListener('click', async e => {
if (e.target.closest('.logout')) {
e.preventDefault();
let response = await this.makeCall('?logout=1');
if (response.success === true) {
window.location.reload();
}
}
});
}
makeCall(url) {
return new Promise((resolve, reject) => {
let target = window.location.protocol + '//' + window.location.host + '/index.php' + url;
console.log(target);
fetch(target, {
method: 'GET',
body: null,
cache: 'no-cache',
headers: {
'Content-Type': 'application/json',
'X-Requested-With': 'XMLHttpRequest'
}
})
.then(response => {
let data = response.json(),
status = response.status;
if (status == 200 || status == 304) {
return data;
}
return { success: false, message: status };
})
.catch(error => {
return { success: false, message: error };
})
.then(response => {
resolve(response);
});
});
}
}
let g = new GoogleDriveJs();
g.init();
</script>
</head>
<body></body>
</html>