16

我正在使用谷歌日历 API。这就是我想要的，一旦您授予应用程序权限，我就可以随时使用该应用程序，而无需每天授予访问权限。我一直听说我需要保存访问令牌或使用刷新令牌来做我想做的事情。这是事情，你是怎么做的？代码看起来如何？我尝试将令牌保存在 cookie 中，但一个小时后，访问令牌已过期。如何让用户保持登录状态？

PS：请给我带有解释的代码示例。

这是我的代码（使用 CakePHP）：

$client = new Google_Client();

    $client->setApplicationName("Wanda3.0 Agenda");

    $cal = new Google_CalendarService($client);

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

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


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


        header('Location: http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']);

    }

    if (isset($_SESSION['token'])) { $client->setAccessToken($_SESSION['token']); }

if ($client->getAccessToken()) {
        /************* Code entry *************/


    }else{
        /************* Not connected to google calendar code *************/
        $authUrl = $client->createAuthUrl();

        $returnArr = array('status' => 'false', 'message' => "<a class='login' href='$authUrl'>Connect Me!</a>");

        return $returnArr;

    }
4

3 回答 3

15

好的，等了几天，Terry Seidler 的建议（下面的评论）让这一切都发生了！这是我关于如何自动刷新访问令牌而不每次使用 cookie 进行身份验证的代码。

（注意：将刷新令牌保存在数据库中更安全）

这就是魔法（使用 cookie）：

$client = new Google_Client();

    $client->setApplicationName("Wanda3.0 Agenda");

    $cal = new Google_CalendarService($client);

    $client->setAccessType('offline');

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

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

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

        header('Location: http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']);

    }

    //Where the magic happends
    if (isset($_SESSION['token'])) {

        //Set the new access token after authentication
        $client->setAccessToken($_SESSION['token']);

        //json decode the session token and save it in a variable as object
        $sessionToken = json_decode($_SESSION['token']);

        //Save the refresh token (object->refresh_token) into a cookie called 'token' and make last for 1 month
        $this->Cookie->write('token', $sessionToken->refresh_token, false, '1 month');
    }

    //Each time you need the access token, check if there is something saved in the cookie.
    //If $cookie is empty, you are requested to get a new acces and refresh token by authenticating.
    //If $cookie is not empty, you will tell the client to refresh the token for further use,
    // hence get a new acces token with the help of the refresh token without authenticating..
    $cookie = $this->Cookie->read('token');

    if(!empty($cookie)){
        $client->refreshToken($this->Cookie->read('token'));
    }

就是这样！如果您有任何疑问，请随时在下面发表评论，我会尽力回答。祝你好运，干杯！

于 2012-09-24T07:06:12.350 回答
0

您应该将其保存在数据库中并使用它，而不是使用 cookie 和会话。

drupal 站点的类似实现位于http://drupal.org/sandbox/sadashiv/1857254的 Google OAuth2 沙箱中。 此模块允许您处理来自 drupal 管理界面的身份验证。然后，您可以使用从 google 获取的访问令牌，然后使用 google_oauth2_account_load 或 google_oauth2_client_get 的 api 函数获取 Google_Client 并携带您的 api 调用。

于 2012-12-24T04:23:30.333 回答
0

与希望行业非常相似，但经过测试，我只想在必要时刷新令牌。完整源代码只需更改顶部的键等：

require_once 'google-api-php-client/src/Google_Client.php';
require_once 'google-api-php-client/src/contrib/Google_CalendarService.php';
session_start();
$client = new Google_Client();
$client->setApplicationName("Google Calendar PHP Starter Application");
// Visit https://code.google.com/apis/console?api=calendar to generate your
// client id, client secret, and to register your redirect uri.
$client->setClientId('your_id');
$client->setClientSecret('your_secret');
$client->setRedirectUri("http://localhost/your_redirect.php");
$client->setDeveloperKey('your_key');

$cal = new Google_CalendarService($client);

if (isset($_GET['code'])) {
    $client->authenticate($_GET['code']);
    $_SESSION['token'] = $client->getAccessToken();
    header('Location: http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'] . $query_string);
}

if (isset($_SESSION['token'])) {
    $client->setAccessToken($_SESSION['token']);//update token
    //json decode the session token and save it in a variable as object
    $sessionToken = json_decode($_SESSION['token']);
    //Save the refresh token (object->refresh_token) into a cookie called 'token' and make last for 1 month
    if (isset($sessionToken->refresh_token)) { //refresh token is only set after a proper authorisation
        $number_of_days = 30 ;
        $date_of_expiry = time() + 60 * 60 * 24 * $number_of_days ;
        setcookie('token', $sessionToken->refresh_token, $date_of_expiry);
    }
}
else if (isset($_COOKIE["token"])) {//if we don't have a session we will grab it from the cookie
    $client->refreshToken($_COOKIE["token"]);//update token
}

if ($client->getAccessToken()) {
    $calList = $cal->calendarList->listCalendarList();
    print "<h1>Calendar List</h1><pre>" . print_r($calList, true) . "</pre>";
    $_SESSION['token'] = $client->getAccessToken();
} else {
    $authUrl = $client->createAuthUrl();
    print "<a class='login' href='$authUrl'>Select a calendar!</a>";
}
于 2014-01-25T07:53:02.717 回答