API Google Drive - Télécharger et exporter le fichier

Question

Je dois télécharger un fichier via Google Drive, puis l'exporter sous un format différent. Par exemple, téléchargez le fichier DOCX et exportez-le au format PDF. J'ai suivi le quickstart REST et les guides de téléchargement de fichiers. Après l'exécution de code, j'obtiens l'erreur:

Fatal error: Uncaught exception 'Google_Service_Exception, "message": "Insufficient Permission"

Il est le problème avec les autorisations, mais je ne sais pas comment le résoudre. Voici le code que j'utilise:

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); 

Edit: Vous avez oublié de mentionner que le code fonctionne jusqu'à jusqu'à ce que le dernier bloc, il répertorie les fichiers avec succès, puis sur les 10 dernières lignes jette l'erreur

Answer 1

Scopes définir la portée de l'accès que vous demandez à un utilisateur. Vous avez authentifié votre code avec les autorisations suivantes.

Google_Service_Drive::DRIVE_METADATA_READONLY

Ce qui vous donne un accès en lecture seule. Ce qui suit est une liste de scopes disponible pour l'API Google Drive. Je voudrais probablement aller avec le premier https://www.googleapis.com/auth/drive.file. Je devine seulement ici mais pour PHP il peut être quelque chose comme Google_Service_Drive::DRIVE_FILE

Answer 2

J'ai obtenu la chose fonctionnante. Je pense qu'il y avait quelque chose avec la définition des portées. BTW j'ai trouvé quelques exemples qui ont été très utiles HERE Le code de travail est:

<?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__) ?> 

Si vous voulez convertir dans d'autres formats, il suffit de changer les types Mime, suivant les références: HERE et HERE