使用带有php脚本的google驱动器api自动刷新令牌

Question

我再次跟踪本教程,使用php直接从我的REMOTE SERVER上传Google文件:所以我从Google API控制台创建了新的API项目,启用了Drive API服务,请求了OAuth客户端ID和客户端密钥,并在脚本,然后将其与Google API Client Library for PHP文件夹一起上传到此http://www.MYSERVER.com/script1.php,以检索验证码:

<?php

require_once 'google-api-php-client/src/Google_Client.php';
require_once 'google-api-php-client/src/contrib/Google_DriveService.php';

$drive = new Google_Client();

$drive->setClientId('XXX'); // HERE I WRITE MY Client ID

$drive->setClientSecret('XXX'); // HERE I WRITE MY Client Secret

$drive->setRedirectUri('urn:ietf:wg:oauth:2.0:oob');

$drive->setScopes(array('https://www.googleapis.com/auth/drive'));

$gdrive = new Google_DriveService($drive);

$url = $drive->createAuthUrl();
$authorizationCode = trim(fgets(STDIN));

$token = $drive->authenticate($authorizationCode);

?>

当我访问http://www.MYSERVER.com/script1.php时, 我允许授权并获取我可以在第二个脚本中编写的Auth代码.然后我将其上传到http://www.MYSERVER.com/script2.php,看起来像:

<?php

require_once 'google-api-php-client/src/Google_Client.php';
require_once 'google-api-php-client/src/contrib/Google_DriveService.php';

$drive = new Google_Client();

$drive->setClientId('X');  // HERE I WRITE MY Client ID
$drive->setClientSecret('X');  // HERE I WRITE MY Client Secret
$drive->setRedirectUri('urn:ietf:wg:oauth:2.0:oob');
$drive->setScopes(array('https://www.googleapis.com/auth/drive'));

$gdrive = new Google_DriveService($drive);

$_GET['code']= 'X/XXX'; // HERE I WRITE AUTH CODE RETRIEVED AFTER RUNNING REMOTE script.php

file_put_contents('token.json', $drive->authenticate());

$drive->setAccessToken(file_get_contents('token.json'));

$doc = new Google_DriveFile();

$doc->setTitle('Test Drive');
$doc->setDescription('Document');
$doc->setMimeType('text/plain');

$content = file_get_contents('drive.txt');

$output = $gdrive->files->insert($doc, array(
      'data' => $content,
      'mimeType' => 'text/plain',
    ));

print_r($output);

?>

好吧,现在文件drive.txt上传到我的Google云端硬盘上,而token.json文件的结构是这样的:

{"access_token":"XXX","token_type":"Bearer","expires_in":3600,"refresh_token":"YYY","created":1365505148}

现在,你可以想象我可以调用script2.php并上传文件直到某个时间.最后,重点是:我不希望令牌过期,我不希望每次过期都允许授权(调用script1.php):我需要在白天定期调用script2.php,上传我的文件自动,没有用户交互.那么,在这种情况下永久自动刷新令牌的最佳方法是什么？我需要另一个脚本吗？我可以在script2.php中添加一些代码吗？或修改token.json文件？在令牌到期之前,我在哪里可以读取剩余的时间？谢谢!

Answer 1

您不必定期请求访问令牌.如果您有refresh_token,PHP客户端将自动为您获取新的访问令牌.

要检索refresh_token,您需要将access_type设置为"offline"并要求离线访问权限:

$drive->setAccessType('offline');

一旦你得到了code,

$_GET['code']= 'X/XXX';
$drive->authenticate();

// persist refresh token encrypted
$refreshToken = $drive->getAccessToken()["refreshToken"];

对于将来的请求,请确保始终设置刷新的令牌:

$tokens = $drive->getAccessToken();
$tokens["refreshToken"] = $refreshToken;
$drive->setAccessToken(tokens);

如果您想要强制访问令牌刷新,可以通过调用refreshToken:

$drive->refreshToken($refreshToken);

当心,refresh_token只会在第一次退货$drive->authenticate(),你需要永久存储它.要获取新的refresh_token,您需要撤消现有令牌并再次启动身份验证过程.

Google的OAuth 2.0文档详细说明了离线访问.