我希望用户使用我的Chrome网店应用程序打开一个文件，然后我将处理我获得的文件和元数据。我一直在关注谷歌的官方文档，但我无法实现它。
我从Github的Google api php客户端添加了库，这是我一直在尝试的代码之一：
$client = new Google_Client();
// Get your credentials from the console
$client->setClientId('xxxx.apps.googleusercontent.com');
$client->setClientSecret('xxxxx');
$client->setRedirectUri('https://my_site.com/path/driveapp.php');
$client->setScopes(array(
'https://www.googleapis.com/auth/drive',
'email',
'profile'));
$client->setUseObjects(true);
// if there is an existing session, set the access token
if ($user = get_user()) {
$client->setAccessToken($user->tokens);
}
// initialize the drive service with the client.
$service = new Google_DriveService($client);
/**
* Gets the metadata and contents for the given file_id.
*/
$app->get('/svc', function() use ($app, $client, $service) {
checkUserAuthentication($app);
checkRequiredQueryParams($app, array('file_id'));
$fileId = $app->request()->get('file_id');
try {
// Retrieve metadata for the file specified by $fileId.
$file = $service->files->get($fileId);
// Get the contents of the file.
$request = new Google_HttpRequest($file->downloadUrl);
$response = $client->getIo()->authenticatedRequest($request);
$file->content = $response->getResponseBody();
renderJson($app, $file);
} catch (Exception $ex) {
renderEx($app, $ex);
}
});
我一直在遵循我应该遵循的所有步骤；去控制台，配置了Drive SDK，启用了Drive API，创建了客户端ID，关心我的Chrome web-app的json中的参数。但在使用文档中提到的方法后，我仍然会不断出现语法错误。
据我所知，文档并没有更新，因此库文件的路径存在问题。
PS：我已经检查了Quickstart、Authorize Requests和examples的代码，但没有任何帮助。
使用最新的PHP库驱动api很棘手。网络上也缺乏文档。这个代码对我有效，它应该会帮助你：
<?php
session_start();
require_once 'google-api-php-client/src/Google/autoload.php';
$client_id = '';
$client_secret = '';
$redirect_uri = '';
$client = new Google_Client();
$client->setClientId($client_id);
$client->setClientSecret($client_secret);
$client->setRedirectUri($redirect_uri);
$client->addScope("https://www.googleapis.com/auth/drive");
$service = new Google_Service_Drive($client);
function printFile($service, $fileId) {
try {
$file = $service->files->get($fileId);
print "Title: " . $file->getTitle();
print "Description: " . $file->getDescription();
print "MIME type: " . $file->getMimeType();
} catch (Exception $e) {
print "An error occurred: " . $e->getMessage();
}
}
if (isset($_REQUEST['logout'])) {
unset($_SESSION['upload_token']);
}
if (isset($_GET['code'])) {
$client->authenticate($_GET['code']);
$_SESSION['upload_token'] = $client->getAccessToken();
}
if (isset($_SESSION['upload_token']) && $_SESSION['upload_token']) {
$client->setAccessToken($_SESSION['upload_token']);
if ($client->isAccessTokenExpired()) {
unset($_SESSION['upload_token']);
}
} else {
$authUrl = $client->createAuthUrl();
}
if ($client->getAccessToken()) {
// This is uploading a file directly, with no metadata associated.
if (isset($_GET['state'])) {
$a = urldecode(urldecode($_GET['state']));
$state = json_decode(stripslashes($a));
$_SESSION['mode'] = $state->action;
if (isset($state->ids)){
$_SESSION['fileIds'] = $state->ids;
} else {
$_SESSION['fileIds'] = array();
}
if (isset($state->parentId)) {
$_SESSION['parentId'] = $state->parentId;
} else {
$_SESSION['parentId'] = null;
}
$fileId = $_SESSION['fileIds'];
printFile($service, $fileId[0]);
}
}
?>