php - 如何使用 php 将文件上传到我的谷歌驱动器(不是最终用户)

标签 php google-drive-api google-oauth

我想使用我的 Google 驱动器来存储我的文件,用户将在我的网站上上传这些文件。这是我目前使用的代码。

<!-- this is my index.php-->
<?php
ob_start();
error_reporting(E_ALL);
 ini_set('display_errors', '1');
require("functions.php");
session_start();
header('Content-Type: text/html; charset=utf-8');
$authUrl = getAuthorizationUrl("", "");
?>
<!DOCTYPE html>
<html lang="fi">
<head>
    <title>Google Drive Login and Upload</title>
    <meta charset="UTF-8">
</head>
<body>
<a href=<?php echo "'" . $authUrl . "'" ?>>Authorize</a>
</body>
</html>


<!--This is my fileUpload.php-->
<?php
ob_start();
require_once("functions.php");
session_start();

header('Content-Type: text/html; charset=utf-8');

global $CLIENT_ID, $CLIENT_SECRET, $REDIRECT_URI;
$client = new Google_Client();
$client->setClientId($CLIENT_ID);
$client->setClientSecret($CLIENT_SECRET);
$client->setRedirectUri($REDIRECT_URI);
$client->setScopes('email');

$authUrl = $client->createAuthUrl();    
getCredentials($_GET['code'], $authUrl);

$userName = $_SESSION["userInfo"]["name"];
$userEmail = $_SESSION["userInfo"]["email"];

?>
<!DOCTYPE html>
<html lang="fi">
<head>
    <title>Logged in</title>
    <meta charset="UTF-8">
</head>
<body>

    Hello <?php echo $userName; ?>!
    <br>
    <?php echo $userEmail; ?>

    <br><br><br>

    <form enctype="multipart/form-data" action="formAction.php" method="POST">
        <input type="file" name="file" required>
        <br><br>
        <label for="folderName">Folder name, this either uploads file to an existing folder or creates a new one based on the name</label>
        <br>
        <input type="text" name="folderName" placeholder="My cat Whiskers">

        <br><br>
        <input type="submit" name="submit" value="Upload to Drive">
    </form>

</body>
</html>

<!-- this is my formaction.php where the action goes after submitting the file upload form-->
<?php
require_once 'google-api-php-client/src/Google/Client.php';
require_once 'google-api-php-client/src/Google/Service/Oauth2.php';
require_once 'google-api-php-client/src/Google/Service/Drive.php';
session_start();

header('Content-Type: text/html; charset=utf-8');

// Init the variables
$driveInfo = "";
$folderName = "";
$folderDesc = "";

// Get the file path from the variable
$file_tmp_name = $_FILES["file"]["tmp_name"];

// Get the client Google credentials
$credentials = $_COOKIE["credentials"];

// Get your app info from JSON downloaded from google dev console
$json = json_decode(file_get_contents("composer.json"), true);
$CLIENT_ID = $json['web']['client_id'];
$CLIENT_SECRET = $json['web']['client_secret'];
$REDIRECT_URI = $json['web']['redirect_uris'][0];

// Create a new Client
$client = new Google_Client();
$client->setClientId($CLIENT_ID);
$client->setClientSecret($CLIENT_SECRET);
$client->setRedirectUri($REDIRECT_URI);
$client->addScope(
    "https://www.googleapis.com/auth/drive", 
    "https://www.googleapis.com/auth/drive.appfolder");

// Refresh the user token and grand the privileges
$client->setAccessToken($credentials);
$service = new Google_Service_Drive($client);

// Set the file metadata for drive
$mimeType = $_FILES["file"]["type"];
$title = $_FILES["file"]["name"];
$description = "Uploaded from your very first google drive application!";

// Get the folder metadata
if (!empty($_POST["folderName"]))
    $folderName = $_POST["folderName"];
if (!empty($_POST["folderDesc"]))
    $folderDesc = $_POST["folderDesc"];

// Call the insert function with parameters listed below
$driveInfo = insertFile($service, $title, $description, $mimeType, $file_tmp_name, $folderName, $folderDesc);

/**
* Get the folder ID if it exists, if it doesnt exist, create it and return the ID
*
* @param Google_DriveService $service Drive API service instance.
* @param String $folderName Name of the folder you want to search or create
* @param String $folderDesc Description metadata for Drive about the folder (optional)
* @return Google_Drivefile that was created or got. Returns NULL if an API error occured
*/
function getFolderExistsCreate($service, $folderName, $folderDesc) {
    // List all user files (and folders) at Drive root
    $files = $service->files->listFiles();
    $found = false;

    // Go through each one to see if there is already a folder with the specified name
    foreach ($files['items'] as $item) {
        if ($item['title'] == $folderName) {
            $found = true;
            return $item['id'];
            break;
        }
    }

    // If not, create one
    if ($found == false) {
        $folder = new Google_Service_Drive_DriveFile();

        //Setup the folder to create
        $folder->setTitle($folderName);

        if(!empty($folderDesc))
            $folder->setDescription($folderDesc);

        $folder->setMimeType('application/vnd.google-apps.folder');

        //Create the Folder
        try {
            $createdFile = $service->files->insert($folder, array(
                'mimeType' => 'application/vnd.google-apps.folder',
                ));

            // Return the created folder's id
            return $createdFile->id;
        } catch (Exception $e) {
            print "An error occurred: " . $e->getMessage();
        }
    }
}

/**
 * Insert new file in the Application Data folder.
 *
 * @param Google_DriveService $service Drive API service instance.
 * @param string $title Title of the file to insert, including the extension.
 * @param string $description Description of the file to insert.
 * @param string $mimeType MIME type of the file to insert.
 * @param string $filename Filename of the file to insert.
 * @return Google_DriveFile The file that was inserted. NULL is returned if an API error occurred.
 */
function insertFile($service, $title, $description, $mimeType, $filename, $folderName, $folderDesc) {
    $file = new Google_Service_Drive_DriveFile();

    // Set the metadata
    $file->setTitle($title);
    $file->setDescription($description);
    $file->setMimeType($mimeType);

    // Setup the folder you want the file in, if it is wanted in a folder
    if(isset($folderName)) {
        if(!empty($folderName)) {
            $parent = new Google_Service_Drive_ParentReference();
            $parent->setId(getFolderExistsCreate($service, $folderName, $folderDesc));
            $file->setParents(array($parent));
        }
    }
    try {
        // Get the contents of the file uploaded
        $data = file_get_contents($filename);

        // Try to upload the file, you can add the parameters e.g. if you want to convert a .doc to editable google format, add 'convert' = 'true'
        $createdFile = $service->files->insert($file, array(
            'data' => $data,
            'mimeType' => $mimeType,
            'uploadType'=> 'multipart'
            ));

        // Return a bunch of data including the link to the file we just uploaded
        return $createdFile;
    } catch (Exception $e) {
        print "An error occurred: " . $e->getMessage();
    }
}

echo "<br>Link to file: " . $driveInfo["alternateLink"];

?>

我遇到的问题是,当用户上传文件时,它不会进入我的谷歌驱动器,而是进入该用户的驱动器。 :( 我不想要什么。我想将该文件存储到我的 Google 驱动器中。

请帮忙!! 谢谢。

最佳答案

如果您成功将文件上传到用户的 Google 云端硬盘,那么恭喜您。你快到了。您唯一需要更改的是获取访问 token 的方式。参见 How do I authorise an app (web or installed) without user intervention? (canonical ?)

关于php - 如何使用 php 将文件上传到我的谷歌驱动器(不是最终用户),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31933636/

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