我需要通过Google云端硬盘上传文件，然后将其导出为不同的格式。例如，上传DOCX并将其导出为PDF。我一直在关注REST快速入门和上传文件指南。执行代码后，我收到错误：
致命错误：未捕获的异常'Google_Service_Exception，“message”： “权限不足”
这是权限问题，但我不知道如何修复它。 这是我使用的代码：
date_default_timezone_set('Europe/Sofia');
require_once __DIR__ . '/vendor/autoload.php';
define('APPLICATION_NAME', 'Drive API PHP Quickstart');
define('CREDENTIALS_PATH', '~/.credentials/drive-php-quickstart.json');
define('CLIENT_SECRET_PATH', __DIR__ . '/client_secret.json');
// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/drive-php-quickstart.json
define('SCOPES', implode(' ', array(
Google_Service_Drive::DRIVE_METADATA_READONLY)
));
//i've tried to change the scope to ::DRIVE, but still get the same error
if (php_sapi_name() != 'cli') {
throw new Exception('This application must be run on the command line.');
}
/**
* Returns an authorized API client.
* @return Google_Client the authorized client object
*/
function getClient() {
$client = new Google_Client();
$client->setApplicationName(APPLICATION_NAME);
$client->setScopes(SCOPES);
$client->setAuthConfig(CLIENT_SECRET_PATH);
$client->setAccessType('offline');
// Load previously authorized credentials from a file.
$credentialsPath = expandHomeDirectory(CREDENTIALS_PATH);
if (file_exists($credentialsPath)) {
$accessToken = json_decode(file_get_contents($credentialsPath), true);
} else {
// Request authorization from the user.
$authUrl = $client->createAuthUrl();
printf("Open the following link in your browser:\n%s\n", $authUrl);
print 'Enter verification code: ';
$authCode = trim(fgets(STDIN));
// Exchange authorization code for an access token.
$accessToken = $client->fetchAccessTokenWithAuthCode($authCode);
// Store the credentials to disk.
if(!file_exists(dirname($credentialsPath))) {
mkdir(dirname($credentialsPath), 0700, true);
}
file_put_contents($credentialsPath, json_encode($accessToken));
printf("Credentials saved to %s\n", $credentialsPath);
}
$client->setAccessToken($accessToken);
// Refresh the token if it's expired.
if ($client->isAccessTokenExpired()) {
$client->fetchAccessTokenWithRefreshToken($client->getRefreshToken());
file_put_contents($credentialsPath, json_encode($client->getAccessToken()));
}
return $client;
}
/**
* Expands the home directory alias '~' to the full path.
* @param string $path the path to expand.
* @return string the expanded path.
*/
function expandHomeDirectory($path) {
$homeDirectory = getenv('HOME');
if (empty($homeDirectory)) {
$homeDirectory = getenv('HOMEDRIVE') . getenv('HOMEPATH');
}
return str_replace('~', realpath($homeDirectory), $path);
}
// Get the API client and construct the service object.
$client = getClient();
$service = new Google_Service_Drive($client);
// Print the names and IDs for up to 10 files.
$optParams = array(
'pageSize' => 10,
'fields' => 'nextPageToken, files(id, name)'
);
$results = $service->files->listFiles($optParams);
if (count($results->getFiles()) == 0) {
print "No files found.\n";
} else {
print "Files:\n";
foreach ($results->getFiles() as $file) {
printf("%s FILE_ID(%s)\n", $file->getName(), $file->getId());
}
}
//The error I get is in this block:
$fileMetadata = new Google_Service_Drive_DriveFile(array(
'name' => 'photo.jpg'));
$content = file_get_contents('photo.jpg');
$file = $service->files->create($fileMetadata, array(
'data' => $content,
'mimeType' => 'image/jpeg',
'uploadType' => 'multipart',
'fields' => 'id'));
printf("File ID: %s\n", $file->id);
编辑：忘记提及代码工作直到最后一个块，它成功列出文件，然后在最后10行抛出错误
答案 0 :(得分：3)
范围定义您请求用户的访问范围。您已使用以下权限对代码进行身份验证。
Google_Service_Drive :: DRIVE_METADATA_READONLY
这为您提供只读访问权限。以下是适用于Google云端硬盘API的scopes列表。
https://www.googleapis.com/auth/drive查看和管理Google云端硬盘中的文件
https://www.googleapis.com/auth/drive.appdata在您的Google云端硬盘中查看和管理自己的配置数据
https://www.googleapis.com/auth/drive.file查看和管理您使用此应用打开或创建的Google云端硬盘文件和文件夹
https://www.googleapis.com/auth/drive.metadata查看和管理Google云端硬盘中文件的元数据
https://www.googleapis.com/auth/drive.metadata.readonly查看Google云端硬盘中文件的元数据
https://www.googleapis.com/auth/drive.photos.readonly查看Google相册中的照片，视频和相册
https://www.googleapis.com/auth/drive.readonly查看Google云端硬盘中的文件
https://www.googleapis.com/auth/drive.scripts修改您的Google Apps脚本脚本行为
我可能会选择第一个https://www.googleapis.com/auth/drive.file。我只在这里猜测，但对于PHP，它可能类似于Google_Service_Drive::DRIVE_FILE
答案 1 :(得分：1)
我得到了工作。我认为范围的定义有一些东西。 BTW我发现了一些非常有用的例子HERE 工作代码是：
<?php
date_default_timezone_set('Europe/Sofia');
include_once __DIR__ . '/../vendor/autoload.php';
include_once "templates/base.php";
echo pageHeader("File Upload - Uploading a simple file");
/*************************************************
* Ensure you've downloaded your oauth credentials
************************************************/
if (!$oauth_credentials = getOAuthCredentialsFile()) {
echo missingOAuth2CredentialsWarning();
return;
}
/************************************************
* The redirect URI is to the current page, e.g:
* http://localhost:8080/simple-file-upload.php
************************************************/
$redirect_uri = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
$client = new Google_Client();
$client->setAuthConfig($oauth_credentials);
$client->setRedirectUri($redirect_uri);
$client->addScope("https://www.googleapis.com/auth/drive");
$service = new Google_Service_Drive($client);
// add "?logout" to the URL to remove a token from the session
if (isset($_REQUEST['logout'])) {
unset($_SESSION['upload_token']);
}
/************************************************
* If we have a code back from the OAuth 2.0 flow,
* we need to exchange that with the
* Google_Client::fetchAccessTokenWithAuthCode()
* function. We store the resultant access token
* bundle in the session, and redirect to ourself.
************************************************/
if (isset($_GET['code'])) {
$token = $client->fetchAccessTokenWithAuthCode($_GET['code']);
$client->setAccessToken($token);
// store in the session also
$_SESSION['upload_token'] = $token;
// redirect back to the example
header('Location: ' . filter_var($redirect_uri, FILTER_SANITIZE_URL));
}
// set the access token as part of the client
if (!empty($_SESSION['upload_token'])) {
$client->setAccessToken($_SESSION['upload_token']);
if ($client->isAccessTokenExpired()) {
unset($_SESSION['upload_token']);
}
} else {
$authUrl = $client->createAuthUrl();
}
/************************************************
* If we're signed in then lets try to upload our
* file. For larger files, see fileupload.php.
************************************************/
if ($_SERVER['REQUEST_METHOD'] == 'POST' && $client->getAccessToken()) {
// CREATE A NEW FILE
$file = new Google_Service_Drive_DriveFile(array(
'name' => 'sample',
'mimeType' => 'application/vnd.google-apps.presentation'
));
$pptx = file_get_contents("sample.docx"); // read power point pptx file
//declare opts params
$optParams = array(
'uploadType' => 'multipart',
'data' => $pptx,
'mimeType' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
);
//import pptx file as a Google Slide presentation
$createdFile = $service->files->create($file, $optParams);
//print google slides id
//print "File id: ".$createdFile->id;
$optParams2 = array(
'fileId' => $createdFile->id,
'mimeType' => 'application/pdf'
);
$response = $service->files->export($createdFile->id, 'application/pdf', array(
'alt' => 'media' ));
//print_r($response);
$content = $response->getBody()->getContents();
///rint_r($content);
$data = $content;
file_put_contents('test_ppt.pdf',$data);
}
?>
<div class="box">
<?php if (isset($authUrl)): ?>
<div class="request">
<a class='login' href='<?= $authUrl ?>'>Connect Me!</a>
</div>
<?php elseif($_SERVER['REQUEST_METHOD'] == 'POST'): ?>
<div class="shortened">
<p>Your call was successful! Check your drive for the following files:</p>
<ul>
</ul>
</div>
<?php else: ?>
<form method="POST">
<input type="submit" value="Click here to upload two small (1MB) test files" />
</form>
<?php endif ?>
</div>
<?= pageFooter(__FILE__) ?>